Drive device for rotary tool, which operates with oscillation loading, and tool with such device

FIELD: engines and pumps.

SUBSTANCE: drive device for rotary tool, which operates with oscillation loading, has drive housing, load-carrying sleeve installed with possibility of being rotated in drive housing, drive shaft installed with possibility of being rotated in load-carrying sleeve, carrier of the tool for receiving processing tools, and oscillation excitation device for creating oscillation loading of carrier of the tool. Oscillation excitation device for each carrier of the tool has at least two intermediate shafts which by means of eccentric parts are attached to carriers of the tools and made with possibility of synchronous actuation.

EFFECT: improving support and sealing of drive shaft and load-carrying sleeve, increasing service life of drive devices.

25 cl, 21 dwg

 

The invention relates to a drive device for rotating working with oscillatory loading tool having a drive housing mounted for rotation in the drive housing bearing sleeve mounted rotatably in a bearing sleeve drive shaft, the carrier of the tool for receiving machining tools and device vibration excitation to generate oscillatory loading tool carrier.

In corresponding to the generic concept of a drive device with a shock loading of the activation of the shock pulse is carried out by means of a suitable shock mechanism, the inertia of the generators and, in particular, eccentric shafts, which are freely rotating or driven machining tools. Working with shock loading tools are used, in particular in mining, tunnel construction and in the construction of roads, if you must fight, to be processed by milling or otherwise processed, for example, hard rock or mineral rock. Due to the shock loading required clamping force to be fighting off or removal of material can be reduced to 1/10 required without shock loading clamping force that allows the use made boleslawski and smaller tools and machines and at the same time improves the performance of production or rate of penetration of the tool.

Corresponding to the generic concept of drive devices

shock-loaded tools known from EP 329915 A1 and EP 455994 B1. Corresponding to the generic concept of the driving means include, respectively, one mounted for rotation and driven by its drive bearing sleeve eccentric inside the hole where the hinge is installed coupled with the carrier of the tool without the possibility of twisting the shaft, which in the prior art often referred to as the eccentric shaft. The bearing sleeve is consistent with the non-balances for dynamic balancing of the drive device and the eccentric shaft is driven by the second actuator, which may consist of a separate drive or low gear (gearbox). In the case of a downshift transmission ratio between the number of revolutions of the eccentric shaft and the rotational speed of the bearing sleeve is constant, in the case of actuators with a separate drive for the Cam shaft gear ratio is variable within certain limits. The offset of the eccentric shaft in the bearing sleeve may be, for example, 5 mm, and the ratio more rapidly rotating eccentric shaft to the more slowly rotating bearing sleeve may be approximately 30:1, t is to that installed in the media processing tools affect a large number of radial shock, mined or processed material or rock. Achieved in the case corresponding to the generic concept of the tool with the shock loading performance release or production already many times greater than in the case of the conventional driving devices without shock loading.

However, a problem in case of appropriate generic term induced by the eccentricity of the drive units with the shock loading are significant vibration that is transmitted to the drive housing or body of the instrument, unbalanced mass, which is required, in particular, for dynamic balancing, as well as the service life of seals and bearings for the eccentric shaft and the bearing sleeve.

The task of the invention is to provide a drive device for rotating working with shock loading tools, which improved bearing and seal the drive shaft and the bearing sleeve, to increase the service life of drive devices and, in particular, are equipped with motorized devices tools.

This and other tasks in accordance with the invention are solved by the fact that the exciter for shock loading is a device for the excitation of oscillations, which for each tool carrier has at least two of the intermediate shaft, which are appropriate to estwenno connected through the eccentric portion of the media tool and performed with simultaneous actuation. Corresponding to the invention the driving means are of a fundamentally different design than the corresponding generic concept of shock-loaded drive device. The induction of shock, which in the case of the invention for the purpose of distinguishing from the prior art is referred to as jitter, is not through a separate installed or located with the eccentricity of the eccentric shaft, and through at least two intermediate shafts, which in a suitable way by means of the eccentric part of the eccentric associated with the holder of the instrument and performed with simultaneous actuation. Because one or each media tool approved by at least two intermediate shafts, they can be made significantly smaller than in the case of prior art, so that the shaft seal and bearing (installation support) intermediate shafts is greatly simplified. At the same time eliminating the need for relatively bulky carrier sleeve, which in the prior art was to be agreed with the calculated accordingly a large counterweight. In the case corresponding to the invention of designs with multiple made smaller intermediate shafts, rather the willows, it's no longer necessary. Therefore, corresponding to the invention the drive device can operate working with oscillatory loading tools, which can be much larger and more diverse than in the prior art, without the risk of problems bearing or seal intermediate shaft, bearing bushings and/or the drive shaft. Further advantage is that all on the side of the drive portion in accordance with the invention are not subject to fluctuations media tool produced by devices of the vibration excitation.

In a particularly preferred embodiment of the invention the intermediate shafts mounted in the bearing sleeve concentric with respect to the axis of rotation of the drive shaft. Therefore, in this construction, not only the drive shaft is concentric with respect to the carrier sleeve, but also all intermediate shafts are concentric with respect to the common axis of rotation. In this case, several intermediate shafts can be arranged around the axis of rotation of the drive shaft, in particular symmetrically distributed and located on the peripheral circumference. Therefore, in this design may be particularly simple way the actuator PR the water shaft and the drive bearing sleeve, because as the carrier sleeve and the drive shaft rotate concentrically around a common axis of rotation.

In another, particularly preferred embodiment, the drive device intermediate shafts may be connected to the drive shaft via a transmission, particularly preferably by means of gears. The use of gears is provided by the fact that the axis of rotation of the intermediate shafts have a constant distance from the common axis of rotation of the drive shaft and the bearing sleeve, regardless of their immediate situation.

According to one preferred variant implementation of the gears may be coupled to the drive shaft without the possibility of rotation of the Central gear wheel and respectively connected to the intermediate shaft without the possibility of twisting and being in toothed engagement with the Central gear of the planetary gears. In an alternative embodiment, the gear may be coupled to the drive shaft without the possibility of rotation of the Central gear wheel and respectively connected to the intermediate shaft without the possibility of rotation of the planetary gears, and between the Central wheel and the planetary gears are additionally intermediate gear to the forest, installed with the possibility of rotation in the bearing sleeve. In the case of directly coupled with the Central gear of the planetary gear wheels can be achieved relatively high speed of rotation of the intermediate shaft, while the design with the intermediate gears, the number of revolutions of the intermediate shaft may essentially or exactly match the number of revolutions of the drive shaft. The latter is particularly preferable when one media tool aligned with one connected to the drive shaft without the possibility of rotation of the balancing weight. For the specialist it is obvious that raising or lowering the gear ratio depends on the design parameters of the individual gears.

Another significant advantage of the relevant invention is that the eccentricity is formed directly between the carrier of the tool and the intermediate shaft and is achieved by the eccentric part. In one relevant to the invention of the embodiment, the eccentric portion can be integral parts of the intermediate shafts and can be formed by means located eccentrically relative to the Central axis of the intermediate shaft eccentric axle. Accordingly, in this Varian is e implementation provides a solid intermediate shafts, are formed in one piece eccentric pin. In one alternative embodiment, the design of the eccentric portion can be positioned eccentrically relative to the Central axis of the intermediate shaft extensions shaft, which Rethimno connected with the intermediate shaft. In design with detachable continuations of the shaft is particularly preferred if the intermediate shafts and the continuation of the shafts are connected through a conical protrusion, which is included in a conical recess in the other part. Because usually intermediate shafts have a larger diameter than a continuation of the shaft, the deepening of the preferred image can be performed in the intermediate shaft. However, the inverse arrangement is also possible. In this case, particularly preferably, if executed without the possibility of twisting the connection between the conical protrusion and the recess provided by the locking means.

Further, alternative instead of intermediate shafts with eccentric sequels shafts can also be used intermediate shaft concentric with the trunnion shaft, and an eccentric portion formed by bushings with a Cam slot of the shaft. Then the trunnion shaft is fixed in the slot of the shaft, which formed as a result of the eccentric system between premiato the different shafts and media tool. Here it is also preferable if the socket for the axle shaft the shaft is made conical and interact (concatenated) with each other without the possibility of twisting, and the preferred way is made without the possibility of twisting the connection is secured by the locking means. Connection with conical parts facilitates removal of the carrier or carriers of the tool located from the drive part, which includes a bearing sleeve, drive shaft and bearings of the intermediate shaft. An alternative to the screw connection as a locking means made without the possibility of twisting the connection between the conical parts may also consist of an oil press-fit connection or made detachable by hydraulic pressure loading means landing with tension. In this case, the mounting is carried out by means of the method of overmolding, and the oil or other hydraulic medium is pumped into the joint gap between the conical parts in order to expand another portion for mounting. The necessary pressure can be achieved, for example, using a multiplier or hydraulic press. It is clear that for dismantling it is necessary to re-implement the expansion of the outer conical part, by hydraulic means.

An expedient manner between the Cam part and the bearer of the instrument is one, and in the case of large sizes or depths media tool even two or more rotary bearings. Only these rotating bearings loaded by an eccentric rotation of the continuations of the shaft or trunnion shaft to the intermediate shaft. However, because the sizes of bushings, trunnion shaft or continuations of the shaft due to the presence of several intermediate shafts are relatively small, there are no problems with the service life of bearings and shaft seals despite the presence of eccentricity.

Drive device or tool with a drive unit can be done in numerous ways. According to one particularly preferred variant implementation of the drive unit or the instrument has multiple media tool, and every media tool connected to at least two of the intermediate shaft. In this embodiment, multiple media tool is particularly preferable if the generated device vibration excitation to the first tool carrier oscillations are shifted in phase relative to the oscillation(s)that(s) created(s) other(they) device(s), the excitation of oscillations. Therefore, in this embodiment, the dynamic is some trim tool carrier can be carried out only due to the offset phase of the oscillation of at least one other media tools.

According to one particularly preferred variant implementation can be provided by an even number of media tool, and respectively arranged opposite each other in the media tool loaded shifted in phase by 180 oscillating pulses through the system eccentric parts of the intermediate shafts of the respective devices of the excitation oscillation. For example, in the case of two media tool these media tools are impacted by oscillatory pulse is shifted in phase by 180, and this oscillatory pulse is focused, for example, both media tool at some point of time or inward or outward. In the case of four media tools available, for example, respectively, two pairs, and within the same pair two tool carrier loaded shifted in phase by 180 oscillating pulse, and particularly preferably between pairs there is a shift in phase, equal to 90. In this case, all four tool carrier can be located in the same plane. According to another preferred variant implementation, there are three tool carrier, and a separate media tool loaded shifted in phase by 120 oscillating pulse through the system eccentric parts of the intermediate shafts of the respective condition is of hardware vibration excitation. It also made dynamic balancing only due to the offset phase of oscillatory loading one of the other three media tool without the need for additional balancing masses.

According to another alternative implementation can be provided by two located in different planes of the tool carrier, which with the help of the system eccentric parts of the intermediate shafts of the respective devices of the vibration excitation loaded shifted in phase by 180 oscillating pulse. An implementation option located in different planes by native instrument due to the location of attached processing tools in various fields has the advantage that the clamping effort that should be applied, for example, the feed drive, additionally reduced, since a separate media tool at any point in time cannot exist simultaneously in cooperation with developing the breed. In particular, in the latter embodiment is particularly preferred if every media tool agreed three intermediate shaft, which are mutually distributed around the circumference. To allow the location in two different planes corresponding to the media and what the tools can be executed, in particular, in the form of a spade, propeller or stars. However, the system with three intermediate shafts can also be carried out in drive devices or instruments with only two object tool and/or made in the form of a propeller or shovels media tool receiving area for the machining tool can be formed as a media tool by rotation or bending so that the machining tools are located and operate in the same plane.

In one relevant to the invention of the embodiment, only a single media tool, it can also operate a large number, for example six, synchronously rotating the intermediate shaft. Of course, in this embodiment, only a single media tool required balancing weight, which is in phase revolves around the drive axis of the drive shaft are offset in phase by 180 relative to the generated by the eccentric parts of all the intermediate shaft of the oscillating pulse.

Tools can be directly attached to the bearer of the instrument. However, particularly preferably, when each media tool is attached in one piece or composed of several parts, made in the form of the number is zevah segments of the tool holder with mounting devices for multiple machine tools. Corresponding to the invention of the drive unit can be used for drilling, milling or digging rocks and minerals. Used machining tools can consist, in particular, self-sharpening round blade flat cutters, drilling tools with disk or roller cutters. Further preferably, if during operation of the bearing sleeve are provided with a significantly lower number of revolutions than the intermediate shafts, and the preferred way gear ratio between the number of NZof revolutions of the intermediate shaft and the number of NTof revolutions of the bearing sleeve is >22 and, in particular, between 25:1 and about 31:1 depending on the developed breed, the number of processing tools, etc. Then your preferred way bearing sleeve can be provided with a drive bearing bushings, and intermediate shafts using agreed with the drive shaft of the drive intermediate shaft, and the feed speed of the drive device can be adjusted by means of the feed drive, and the controller adjusts the drive bearing bushings and the feed drive depending on the drive intermediate shaft, and consequently, from the actuator to the drive shaft. The connection between the intermediate drive shaft and the drive bearing bushings can be provided so the e by passing a constant gear ratio.

Other advantages and embodiments of the invention follow from the subsequent description is schematically represented in the drawings of embodiments for the relevant invention the drive device or shock-loaded instruments relevant to the invention the drive device. In the drawings shown:

figure 1 - schematic side view corresponding to the invention the drive mechanism is equipped with machining tools;

figure 2 is a front view equipped with machining tools tool carrier of figure 1;

figure 3 is a vertical section corresponding to the invention the drive device in accordance with the first embodiment of the invention;

4 is a front view of native instrument drive device according to Fig 3;

5 is a corresponding 3 is a vertical section corresponding to the invention the drive device in accordance with the second embodiment of the invention;

figa-6D schematically shows the sequence of movements of the object tool in the drive device in accordance with a third embodiment of the invention;

figa-7D is a schematic representation of the sequence of movements of the object tool in the drive device in accordance with the fourth exemplary embodiment and the acquisition;

figa-8D is a schematic representation of the sequence of movements of the object tool in the drive device according to the fifth embodiment of the invention;

Fig.9 - driving device in accordance with the sixth embodiment of the invention in front view on the media tool;

figure 10 - driving device in accordance with the seventh embodiment of the invention in front view on the media tool;

11 is a vertical section corresponding to the invention the drive device in accordance with the eighth embodiment of the invention;

Fig - type tool carrier in the drive device 11.

Figures 1 and 2 by means generally indicated by the number 1 running with shock loading tool presents only one who creates or who exert impact loading of a drive unit 10, which has a drive housing 11 made with the possibility of bringing through gears 12, the drive shaft 13 mounted for rotation within the drive housing 11 and is configured to drive through gears 14 of the bearing sleeve 15 (Fig 3), and in this case, the two made in the form of paludica carrier 16A, 16B of the tool. Associated with the gear wheels 12, 14 drives, as well as other parts of the tool, is not the presents. On each media tool Rethimno secured made in the form of a half ring holder 17A, 17B of the tool, which are respectively supplied with six located in the receiving elements 2 of the tool rod cutters 3 round profile as processing tools. Both holders 17A, 17B of the tool is made in the form of ring segments that fit flush to the edges of the carrier 16A, 16B of the tool and Rethimno fixed there by means of a threaded connection 4. The top incisors processing tools 3 in the working position of the tool 1 at line 5 stope interact with mined rock, in particular solid rock, and when applying the tool 1 in the direction of the arrow V in figure 1 separate pieces of the rock on the line 5 stope. In the process of operation associated with the bearing sleeve without the possibility of rotation of the toothed wheel 14 is driven by drive bearing sleeve (not shown), so that the carriers 16A, 16B of the tool together are rotated in the direction of the arrow R in figure 2. In addition to the rotation in the direction of the arrow R both of the carriers 16A, 16B of the tool moving eccentric relative to the axis of rotation of the intermediate shaft, which, as will be explained, is driven through a drive shaft 13 and is associated with subch the th wheel 12 of the intermediate shaft, in the result processing tools 3 in addition to the rotation of the loaded shock pulse, which significantly improves the breaking of breed on line 5 stope, as it's known for working with shock loading tools. Intermediate shafts, through which the carriers 16A, 16B of the tool loaded shock loading, which is hereinafter referred to as oscillatory loading, respectively accessible from the front side of the tool 1 or the carrier 16A, 16B of the tool through the closing of the valve 6. Therefore, in the embodiment of the invention according to figure 1-4 each carrier 16A, 16B of the tool aligned respectively with three intermediate shafts.

The design of the drive device 10 is illustrated only in relation to figure 3 and 4, which show the first embodiment corresponding to the invention the drive device 10. figure 3 shows in section, mounted rotatably through bearings 18 on the inner side of the housing 11 and the bearing sleeve 15 and the drive shaft 13, which is in turn mounted by means of bearings 19 in the Central hole of the bearing sleeve 15. The drive housing 11 provided with screw-receiving element 7, in order to be able to dismantle all of the drive unit in the form of a compact module with what the AMA or the body of the instrument. In contrast to the known from the prior art running with shock loading tools or drive device in accordance with the invention the drive device 10 as the drive shaft 13 and the bearing sleeve 15 have the same marked position D axis of rotation, and thus the bearing sleeve 15 and the drive shaft 13 to rotate relative to each other without eccentricity.

The bearing sleeve 15 at one end extends into the head 15A, on the front side of which is attached a locking disk 20, which carries the front bearing 19 to the drive shaft 13. As the head 15A and the trailing disk 20 is supplied here in total, six receiving elements 21 to the intermediate shaft 30, through which the eccentric portion 32 respectively fixed carrier 16A or 16B tools. In the embodiment of the invention according to figure 3 the eccentric part consists of made in one piece with the intermediate shaft 30 continuation 32 of the shaft, the Central axis 33 which is located eccentrically relative to the axis 31 of the intermediate shaft 30. All intermediate shafts 30 by means of bearings 22 mounted in the receiving elements 21 in the bearing sleeve 15 and respectively closing the disc 20 so that the axis 31 of the intermediate shafts are arranged concentrically around the rotating shaft D. Each intermediate shaft caadian without the possibility of rotation with the toothed wheel 34, which is in toothed engagement with the Central gear wheel 23, which without the possibility of twisting is connected to the drive shaft 13. Therefore, consistent with the intermediate shaft 30 of the gear wheel 34 constitute the planetary gears, which are simultaneously and synchronously driven through a Central toothed wheel 23 so that all intermediate shafts 30 synchronously turn. The eccentric portion 32 are located on the intermediate shaft 30 in such a way that all agreed with the carrier 16A or 16B of the tool intermediate shafts turn (i.e. commit a turnover) with the same eccentricity. This is particularly clearly noticeable in figure 4, in which the eccentric portion 32 three agreed with the carrier 16A of the tool intermediate shaft is shifted downwards relative to the axis 31 of the intermediate shaft in the same direction and with the same eccentricity, while the eccentric portion 32 connected with the carrier 16B of the tool intermediate shafts are offset shows up in the oscillatory position of the carrier 16A and 16B of the tool. When this intermediate shafts rotate respectively with the same speed relative to each other in the direction of the arrow Z in figure 4, and the number of revolutions of the intermediate shaft 30 and Cam parts depends on h, the SLA of revolutions of the drive shaft 13 and gear ratio of the gearing, formed by the Central wheel 23 and the planetary gears 34. In the embodiment of the invention with two carriers 16A, 16B of the tool eccentric portion 32 is located with respect to the respective intermediate shafts 30 so that in the case of the carrier 16B of the tool is shifted in phase by 180 oscillation with respect to the oscillation of the carrier 16A of the tool. This has the special advantage that one of the carriers 16A of the tool forms a balancing mass for dynamic balancing movement, respectively, of another carrier 16B of the tool. Therefore, additional balancing weight is not required.

In accordance with the invention the drive device 10 or seal 24 of the shaft between the drive housing 11 and the bearing sleeve 15, no seal shaft 25 in the receiving elements 21 in the outlet disk 20 or seal 26 of the shaft between the Cam portions 32 and carriers 16A, 16B tools are not loaded eccentric movements. Each carrier 16A, 16B of the tool by means of several, in this case three, the eccentric portions 32 and the respective bearings 35 for eccentric parts connected for rotation with the intermediate shaft 30, so that the bearings 18, 22 and 35 also not be subjected to any excessive shock loads that are generated in the drive is the device 10 due to vibrational loading.

Figure 5 shows a second example of implementation for the relevant invention the drive device 110. Structurally and functionally identical parts, as in the case of the first example embodiment of the invention, provided with identical reference positions, and the drive device 110 bearing sleeve 15 and the drive shaft 13 is also mounted in the drive housing 11 is concentric around the axis D of rotation. In the drive device 110 in turn two media 116A and V tool connected by means of a Cam portion with the intermediate shaft 130 so that the intermediate shaft 130 is formed device excitation of oscillations for each carrier 116A and V tool. Both lie in the same plane made in the form of paludica carrier 116A, V tool respectively connected with the eccentric portions 132 three intermediate shafts 130, and these intermediate shafts 130 each carrier 116A, V tool are synchronously. The rotational drive for the intermediate shafts 130 again consists of United without the possibility of rotation with the drive shaft 13 of the Central toothed wheel 23, and United without the possibility of rotation with the intermediate shaft 130 of the planetary gears 34. Unlike the first embodiment, the intermediate shafts 130 are made concentric with the axis 11 of the shaft and protruding into the receiving element 137 bearing in media 116A, V tool trunnion shaft 132, which is made in the form of a cone and fixed on the sleeve 140 with concentric spaced receiving elements 141 of the shaft. The Central axis 143 of the sleeve 140, which corresponds to the Central axis of the bearing 135, shown schematically in figure 5. Due located between the sleeves 140 and media 116A or V tool bearings 135 by analogy with the first embodiment, accordingly, the media 116A or V tool in addition to the rotation of the bearing sleeve 15 can be moved in an oscillatory motion around the axis 131 of the intermediate shafts 130, resulting in turn provided with a drive unit 110, the tool receives a shock loading or oscillatory loading for a machining tool. Receiving element 141 of the shaft in the sleeve 140, fitted to the neck of the shaft 143 is also tapered, so that the sleeve 140 and the intermediate shaft 130 could be easily separated from each other. Also in the drive device 110 eccentric part, i.e. in this case the sleeve 140, are arranged in such a way that all agreed with the carrier 116A tool sleeve 140 and all agreed with the carrier W tool sleeve 140 has an eccentric offset in the same direction and approximately the same size, at the same time as the carrier 116A tool recip is et in relation to the media V tool is shifted in phase by 180 oscillatory loading, so dynamic balancing of the drive device 110 by means of additional balancing masses is not required.

On figa-6D for the drive device 210 according to a third example embodiment of the invention schematically system media A, V tool and system eccentric parts 232 of the intermediate shafts, and separate images A-D show respectively the relative position of the object tool after each 90 rotation of the intermediate shaft without taking into account simultaneously the ongoing rotation of the carrier sleeve and with it both media tool around the axis D of rotation. In turn, the drive unit 210 is equipped with two made in the form of palutikof media A, V tool and with each of the media A or V instrument agreed upon only two of the intermediate shaft with eccentric portions 232. The axis of rotation 231 intermediate shaft 230 and the axis D of rotation of the bearing sleeve or shaft is also depicted on figa. Due to the current through the eccentric parts 232 and intermediate shafts devices vibration excitation carriers A, B instrument exposed to respectively shifted in phase by 180 oscillating pulse I, and this torque impulse I at any time for one carrier A tool offset what about the phase by 180 with respect to the pulse I for one medium to another V tool resulting in both media A, V tool dynamically balanced relative to each other, as most clearly shown in figv, 6C and 6D, as between the individual images of the intermediate shaft further rotated respectively by 90. All intermediate shafts rotate in the same direction, as respectively indicated by the arrows.

In the fourth embodiment corresponding to the invention the drive device 310 on figa-7D a total of four made in the form of Quaternary sectors of the disk media A, 316V, S and 316D tool associated with eccentric portions 332, respectively, two intermediate shafts. Respectively, opposite to each other media A and C or 316V and 316D tool constitute a pair and are excited shifted in phase by 180 oscillation so that, respectively, a pair of carriers A, S or 316D, 316V tool dynamically balanced relative to each other. In addition, in the shown example embodiment of the invention between pairs provides additional offset in phase by 90, as shown respectively different positions of the eccentric parts 232 relative to the axis 331 of the intermediate shaft. In turn, the individual figures show the sequence of movement during the 360 rotation of the intermediate VA is s, each of the following shows are displaced with respect to the previous position 90 position of the object tool, and the rotation of the bearing sleeve around the axis D of rotation is not taken into account.

In the shown figa-8D fifth embodiment of a drive device 410, it has three built in the shape of segments of the media disc A, V, S tools that are respectively aligned two concentric rotating around the axis D of rotation of the intermediate shaft for oscillatory loading. Eccentric portion 432 of the intermediate shafts media A tool relative to the eccentric portions 432 of the intermediate shafts media V or S tool are respectively offset in phase or rotated through 120, so that each carrier A tool receives oscillatory loading, carried out with an offset in phase by 120 with respect to the other two media V, S tool. Due to the shift in phase three are located in one plane A, B and C tool also dynamically balanced relative to each other about their shock pulse.

Figure 9 shows the sixth embodiment corresponding to the invention the drive device 510 with two carriers A and V tool, and media V tool is in p is Ascoli behind media A tool. Every media A, V tool aligned respectively three intermediate shaft with eccentric portions 532 and media A tool loaded oscillatory momentum shifted in phase by 180 with respect to the oscillatory pulse media V tool. Both media A, V tool are formed approximately in the shape of a spade profile, and, accordingly, any one of the intermediate shaft, as agreed with media V tool, located between the two intermediate shafts, consistent with the carrier A tool. Due to located in different planes carriers A and V tools in the process of operation can be kept to a minimum pressure of efforts, as some media A, V tool when interacting with the developed rock never are in the same plane, and always alternate and in different planes crash into the rock and thus beat off material.

In the seventh embodiment, the drive device 610 in figure 10 again are rotated two media A, V tool and excited vibrational loading. Media tool can be performed essentially plate-shaped and their Central planes can be located one after the other, so that they, and C is fastened at them machining tools are located in different planes. However, preferably the media A, V tool provided with the appropriate and suitable alternation, so that the receiving processing tools pane, both carriers A, V tools are located in one plane and only the Central region of both media tools are located one behind the other planes. Interleaving can be achieved, for example, by using protruding bends on the back of the media V tool, and optionally using shifted back bends on the front media tool. Also here the intermediate shafts one carrier A tool are related with two intermediate shafts other media V tool, and an eccentric portion 632 of the individual intermediate shafts are arranged so that both media A, V tool loaded shock pulse offset in phase by 180 relative to each other. Both media A, V tool are essentially designed in the form of a star or propeller profile, and on each medium A, V tool can be attached to threaded fasteners 651 made in the form of partially circular segments of the tool holder. Each media A, V tool respectively connected to three intermediate shafts. In this case, the ends of the division of the data supports, made in the form of a propeller or star media tools, can be fitted curves.

11 and 12 show the eighth embodiment corresponding to the invention the drive device 710 in the form corresponding to figure 3 and 4. Drive shaft 713 and the bearing sleeve 715 installed in the drive housing 711 with the possibility of rotation around the same axis D of rotation. Head A bearing sleeve 715 made more massive than in the first example embodiment of the invention, and between the head A and closing the disk 712, in addition to performed in this case is relatively small and connected to the drive shaft 713 without the possibility of twisting of the Central toothed wheel 723 and fixed without the possibility of rotation on the intermediate shaft 730 planetary gear wheels 734 established intermediate gear 738. Using gears 734, 738 and 723 between the drive shaft 713 and the intermediate shaft 730 is implemented gears with a gear ratio of 1:1. All intermediate shafts are eccentric part which is located eccentrically relative to the axis 731 intermediate shaft 730 continuation of the shaft, which has a conical zappoly protrusion 742, who drowned in also made conical recess 743 in the intermediate shafts 730. The protrusion 742 and uglublenie the 743 secured by threaded retainer, which can be split from the front side of the carrier 716 tool after removal of the closing flaps 706. Thus, the entire media tool 716 can be taken forward from the drive housing 711. In particular, when sharing the view with Fig it becomes clear that the drive device 710 has only one carrier 716 tool that is loaded shock pulse with a total of six intermediate shafts. To resolve dynamic neuravnoveshennoe balancing weight 760 are connected without the possibility of rotation with the drive shaft 713, which is offset in phase by 180 with respect to the system or relative to the eccentric offset of the eccentric parts and due to the gear ratio of the gearing phase rotates with offset in phase by 180 so that the balancing weight 716 balances percussion movement of the carrier 716 tool. Thus counterbalancing the weight of 760 rotates in the Central receiving element 739 in the internal volume of the carrier 716 tool.

For professionals from the preceding description, numerous obvious modifications which will fall within the scope of protection of a dependent claim. For large design tools or actuating devices each media tool can be the harmonization of the s even three or more of the intermediate shaft. Also in this specific advantage is that fully preserves the condition that the intermediate shafts with eccentric parts, significantly less than in the case of the drive device with eccentrically of the bore bearing bushings. Not presents that drives the drive shafts and drives for bearing bushings can communicate directly with each other by means of a suitable transmission system. Also not represented, by means of a control device of the upper level, the number of revolutions of the intermediate drive shaft, the drive speed of the bearing bushings and the feed rate for the entire instrument can be consistent with each other and, in particular, be adjusted based on the number of revolutions of the intermediate drive shaft. The eccentric offset may be, for example, 7.5 mm at frequency of rotation of the bearing sleeve 100-150 rpm and under shock loading or vibration approximately 3200 rpm, so that the gear ratio between the number of NZof revolutions of the intermediate shaft and the number of NTof revolutions of the bearing sleeve may range from 20:1 to 35:1. Detachable fastening between the Cam portions and the intermediate shafts can be implemented also by means of the oil press-fit connection. Media tool can be fixed, n is the sample, 8 machining tools with an angular offset of 45 relative to each other. Between the drive shaft and/or bearing sleeve and consisting, for example, from electric motors drives can be installed in a torsionally elastic coupling, which further can be provided with function overloading, so that when the lock to prevent damage to the actuators or actuators. Machining tools, such as core cutters round profile, disks, flat cutters or the like, can also be fixed directly on the media tool. The gap between designed in the shape of segments of a media tool can be overlapped metal sheets or the like

1. Drive unit for rotating working with oscillatory loading of the tool with the drive housing (11)mounted for rotation in the drive housing (11) bearing sleeve (15)is mounted rotatably in a bearing sleeve (15) drive shaft (13), media (16A, 16B) of the tool for receiving machining tools and device vibration excitation to generate oscillatory loading media (16A, 16B) of the tool, characterized in that the device for the excitation of oscillations for each medium (16A, 16B) of the tool has at least two intermediate shaft (30), which are respectively pose the STV eccentric parts (32) are connected with carriers (16A, 16B) of the instrument and performed with simultaneous actuation.

2. Drive unit according to claim 1, characterized in that the intermediate shaft (30) is installed in the bearing sleeve (15) concentric relative to the axis (D) of rotation of the drive shaft (13).

3. Drive unit according to claim 1 or 2, characterized in that the drive shaft (13) and bearing sleeve (15) is installed concentrically relative to the axis (D) of rotation of the drive shaft (13).

4. Drive unit according to claim 1, characterized in that the intermediate shafts (30, 130, 730) are connected to the drive shaft (13, 713) through the transfer, in particular through the gears.

5. Drive unit according to claim 4, wherein the gear is coupled with the drive shaft (13) without the possibility of rotation of the Central gear wheel (23) and the planetary gear (34), which are respectively connected without the possibility of rotation with the intermediate shaft (30, 130) and are in toothed engagement with the Central gear wheel (23).

6. Drive unit according to claim 4, wherein the gear is coupled with the drive shaft (713) without the possibility of rotation of the Central gear wheel (723), respectively connected to the intermediate shaft (730) without the possibility of rotation of the planetary gears (734), and intermediate gears (738), to the which are located between the Central gear wheel (723) and the planetary gears (734) and installed in the bearing sleeve (715).

7. Drive unit according to claim 1, characterized in that the eccentric part (32) are an integral part of the intermediate shaft (30) and formed by means of eccentric pins which are arranged eccentrically relative to the Central axis (31) of the intermediate shaft.

8. Drive unit according to claim 1, characterized in that the eccentric part (732) are located eccentrically relative to the Central axis (731) intermediate shaft (730) continuation of the shaft, which Rethimno connected with the intermediate shaft (730).

9. Drive device according to claim 8, characterized in that the intermediate shaft (730) and continue (732) shaft connected by means of a conical continuation (742), which is included in the conical recess (743) in another part, and the connection is made without the possibility of twisting and preferred way is provided by the locking means.

10. Drive unit according to claim 1, characterized in that the eccentric portion is formed by a bushing (140) with eccentric receiving element (141) of the shaft that is inserted is made concentric intermediate shaft (130) pin (132).

11. Drive device according to claim 10, characterized in that the receiving element (141) and pin (132) of the shaft is made conical and includes each other without the possibility of twisting, and prefer inim way made without the possibility of twisting the connection is secured by the locking means.

12. Drive unit according to claim 9 or 11, characterized in that it is made without the possibility of twisting the connection consists of an oil press-fit connection or detachable, due to the pressure loading by hydraulic means, landing with an interference fit between the conical parts.

13. Drive unit according to claim 1, characterized in that between the eccentric part (32) and a carrier (16A, 16B) of the instrument is one or two rotating bearing (35).

14. Drive unit according to claim 1, characterized by multiple media tool, and every media tool is connected, at least two of the intermediate shaft, and is created by the device vibration excitation to the first tool carrier oscillation is shifted in phase relative to the oscillations or vibrations created or created by another device or devices of the vibration excitation.

15. Drive device according to 14, characterized by an even number of carriers (16A, 16B; A, 316V) tool, and respectively opposite to each other media (16A, 16B, A, 316V) tool through a system of eccentric parts (32; 332) intermediate shafts of the respective devices of the vibration excitation loaded shifted in phase by 180 oscillating pulse.

16. Drive is a device for 14 characterized by three carriers (A, B, C) tool, and a separate media (A) tool through a system of eccentric parts (432) intermediate shafts of the respective devices of the vibration excitation loaded shifted in phase by 120 oscillation pulse.

17. Drive device according to 14, characterized by two located in different planes carriers (A, B, A, V) tool, which through a system of eccentric parts (532, 632) intermediate shafts of the respective devices of the vibration excitation loaded shifted in phase by 180 oscillating pulse.

18. Drive device according to 17, characterized in that each carrier (A, A) instrument agreed three intermediate shaft, which are mutually distributed around the circumference.

19. Drive device according to p, characterized in that the carriers (A, A) tool is made in the form of a shovel or the stars.

20. Drive device according to 17, characterized in that the native tools provided with alternating or curved and positioned in the same plane as receiving areas for holding tools or machine tools.

21. Drive unit according to claim 1, characterized by a single carrier (A) tool and a balancing mass (760), which is rotatin around the drive axis (D) drive shaft (713) offset in phase by 180 relative to the oscillatory pulse, created by eccentric parts (732) all intermediate shafts (730).

22. Drive device according to 14, characterized in that to each media tool is attached in one piece or composed of several parts, made in the form of annular segments holders (17A, 17B) of the tool mounting devices for multiple machine tools.

23. Drive unit according to claim 1, characterized in that the machining tools are self-sharpening round blade flat, disc or roller drilling tools.

24. Drive unit according to claim 1, characterized in that during operation of the bearing sleeve (15) is provided with a significantly lower number of revolutions than the intermediate shafts, and the preferred way gear ratio Nz/NTis >22.

25. Drive unit according to claim 1, characterized in that the bearing sleeve is provided with a drive bearing sleeve, intermediate shaft provided with a drive intermediate shaft that is consistent with the drive shaft and the feed speed of the drive device is regulated by the feed drive, and the controller adjusts the drive of the bearing sleeve and the feed drive depending on the drive intermediate shaft.



 

Same patents:

FIELD: coal industry, particularly development machines for hydromines.

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6 dwg

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The invention relates to mining and can be used in the mine working

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The invention relates to mining machinery and can be used in the construction of mining machines

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FIELD: mining.

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FIELD: mining.

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2 cl, 4 dwg

FIELD: mining.

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5 dwg

FIELD: mining.

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FIELD: engines and pumps.

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5 dwg

Full-face machine // 2324052

FIELD: mining; apparatus for making arched tunnels in underground mining of minerals.

SUBSTANCE: machine includes frame whereon an undercarriage and working element drive gearbox are mounted together with a rotary working head being attached to output shafts of said gearbox. The working head consists of borer, pitching borer, cross element, each end of its arms having a loading bucket with a bottom and sidewalls, and conveyer. The front face bottoms of two loading buckets positioned on opposite arms of said cross element are slopped forward with respect to the machine displacement vector, and those of the other buckets - slopped backward with respect to the same vector.

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FIELD: mining; apparatus for making tunnels in underground mining of minerals.

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EFFECT: cooling of lubricating fluid within the lubrication system; increasing the life of gear shaft bearings of the machine gearbox; decreasing the ambient air temperature; enhancement of working conditions for the operating staff.

4 dwg

FIELD: cutting-loading machines for explosion-free cutting of deposits having complex structures.

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EFFECT: increased operational efficiency due to extended field of practical usage thereof and increased service life of rock-cutting members.

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FIELD: mining machinery manufacturing, particularly machines which completely free the mineral from the seam.

SUBSTANCE: heading machine comprises executive tool including boom with body and cutting crown, as well as feeder with nose and rock raking device. Rock raking device is installed in lower boom part facing ground. Rock raking device is plate shaped as rectangular trapezoid. Minor trapezoid side is located at cutting edge, major one facing feeder nose. The plate is rigidly connected to shaft displaced towards minor trapezoid side. The shaft is installed in socket formed in lower boom part facing ground. The plate may rotate with respect to longitudinal shaft axis. Stops are formed on boom body from both sides of longitudinal boom body axis and spaced a distance providing plate rotation through α angle, wherein 30°≤α≤45°.

EFFECT: simplified structure and increased efficiency of machine loading near face.

4 dwg

FIELD: open-cast mining.

SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.

EFFECT: improved operating capabilities of device.

5 cl, 5 dwg

FIELD: open-cast mining.

SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.

EFFECT: improved operating capabilities of device.

5 cl, 5 dwg

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