Cutter head containing own motors and gearbox

FIELD: machine building.

SUBSTANCE: present description relates to the cutter head for mining machine, and in particular to gear of the force transition to the cutter head of the mining machine, such as continuous miner. The machine for the ore bed development includes: motor with shaft, cutting drum with specified motor and connected to ring tooth-wheels. The primary planetary gear connecting the motor and cutting drum and containing sun gear connected with shaft for force transition to the planetary pinions entering in the engagement with the internal ring tooth-wheel. Secondary planetary gear comprising sun gear receiving force from the ring tooth-wheel and transmitting the rotation force by the non-orbital planetary pinion. Spur gear secured to each side of the non-orbital planetary pinion, at that each spur gear engages with the ring tooth-wheel secured to the cutting drum.

EFFECT: possibility of use of same motor to drive various parts of the cutting drum, as spur gears can engage with various parts of the drum.

10 cl, 6 dwg

 

The level of technology

The present description relates to a cutting head for mining machines and in particular to a mechanism for transmission of coal-cutting head of the mining unit, such as the mining machine of continuous operation.

Fig.1 and 2 show a conventional mining machine 10 containing the main frame 12 supported on crawler means 14, one on each side of the machine, serving to move or advance relative to the ground. Crawler means 14 are driven by electric or hydraulic motors (not shown) mounted on the frame 12 in a known manner.

The mining machine 10 also includes means, indicated generally by the digital position 16, for the production of cut and excavation of aggregate material from the ore formation. Means 16 are mounted at the front end of the boom 20 pivotally mounted on the frame 12. Unit 18 the cutting drum includes a number of teeth 19 for tearing, breaking or cutting aggregate material ore formation for subsequent excavation.

The boom 20 comprises a jumper 21 connecting to each other two side of the lever 22 located at a distance from each other, each of which is pivotally mounted on a pin (not shown) of the frame 12. To ensure the selection of the angular position of the boom 20 relative to the frame 12 are two water�quarter of actuator 24. Thus, the arrow 20 and, therefore, block 18 of the cutting drum can be raised and lowered as you move the mining machine 10 into the ore formation, so that the cutting aggregate material is provided over the entire height of the reservoir. This material is collected in a downstream mining excavator 26 and fed to a dual chain conveyor 28 for further transport in a known manner. On each lever 22 has one motor 30 and interacting with the gear box 32 (see Fig.2) providing a drive unit 18 of the cutting drum. Gearbox 32 includes a longitudinal wall 34 connecting unit 18 of the cutting drum with a jumper arrows 20. Longitudinal walls 34 are part of a gear box 32, which connects the actual cutting drums with an arrow, and hence with the rest of the machine.

Usually, the cause of failure of the above described conventional mining combine continuous action is the destruction of the mentioned longitudinal walls. These walls not only have to withstand the large forces generated when cutting materials, but, as a rule, to perform the role of a supporting structure for the means for transmitting mechanical forces from cutting the engine to the cutting drums. This transmission is usually by means of a complex mechanism consisting of �updateh wheels and shafts, passing through the entire length of the longitudinal walls, as shown in Fig.2. To provide the force necessary to mechanically remove a substantial amount of material of the longitudinal walls 34, which leads to a significant reduction in the overall strength of the wall. In certain circumstances, when a piece of material or broken cutter got jammed with emphasis in these walls, it can lead to destruction of the walls. In such cases, the material of the wall may come into contact with the shafts or gear wheels passing along the wall, and cause a machine stop.

Summary of the invention

The present invention aims to remove the need of using the said longitudinal walls for transmission of mechanical force.

The present invention proposes an Assembly for mining of ore formation containing the engine and cutting drum mounted on the frame for removing aggregate material from the ore formation. The engine is located inside the cutting drum, while they are connected to each other by means of a transmission, the transmitting force from the motor to the cutting drum. Gearbox is also located inside the cutting drum.

Proposed in the invention of the cut head is a first cylindrical cutting head of the mining combine continuous�VNOM operation, having one or more (usually two) cutting motor located inside the cutting drums. In addition, first proposed the double planetary gear train, which uses a complex planetary gear mechanism, located inside the cutting head.

Proposed coal-cutting head allows you to eliminate several problems associated with the use of coal-cutting heads, are known in the art. Furthermore, the use of such a cutting head reduces the number of parts and simplification of the cutting system.

In the proposed coal-cutting head used hard gear box, located in blocks cutting drum, not only cutting up the motors and gear train, but also provides increased torque compared to known models of continuous-mining machines. Proposed coal-cutting head also facilitates the possibility of increasing the width of the cutting head by using a modular design that allows you to easily increase its width to create space to accommodate the more powerful engine, which allows to significantly increase the overall capacity and performance of these machines. In addition, due to the simplified design, reduced cost of manufacture of the proposed coal-cutting head in comparison with the cutting head, known in the art. Proposed coal-cutting head can also help reduce the cost of cutting the boom and to a smaller width, for example to ensure the placement of drilling devices for the production of roof bolting. Another advantage is that in this invention the mass of the cutting motor is moved forward, helping to improve cutting efficiency. In the proposed coal-cutting head also uses a simple gear train compared to conventional mining combines. In addition, the new gear has fewer custom parts, which can reduce the manufacturing cost and the number of required spare parts.

Brief description of the drawings

Fig.1 depicts in perspective of the mining unit, known in the art.

Fig.2 depicts a partially sectioned mountain unit shown in Fig.1, which contains an arrow, block cutting drum and its transmission.

Fig.3 depicts in perspective of the mining unit containing the boom and cutting head according to the present invention, with the Central and left-hand cutting drums are not shown. The drawing is visible only some of the cutting teeth.

Fig.4 depicts in perspective a gear on the inner side of the longitudinal wall of the mountain of Assembly, while�data in Fig.3.

Fig.5 depicts in perspective of the left side of the transmission gear that is located inside the housing main gearbox mountain unit shown in Fig.3.

Fig.6 depicts in perspective of the right side gear train located inside the housing main gearbox mountain unit shown in Fig.3.

It should be understood that this description is not limited to details of construction and arrangement of its elements, according to the following description or drawings. This description allows for the possibility of other various embodiments of the invention. In addition, it should be borne in mind that the phraseology and terminology are used only for description of the invention and not limit it. The words "comprising" and "containing" and other similar words used in this description, are applied to cover the items listed below and their equivalents, as well as additional elements. The phrase "consists of" and similar phrases are used to cover only the items listed below and their equivalents. In addition, it should be noted that terms such as "forward","backward", "left", "right", "up", "down", etc., are used for convenience of description and should not be construed as limiting the invention.

Description� preferred embodiment of the invention

Fig.3-6 shows the boom and cutting head designated in the collection of digital position 100, mountain harvester of continuous operation. They replace the means indicated in General by the digital position 16, for the production of cut and excavation of aggregate material from ore bed, which is shown in Fig.1 and 2.

Fig.3 shows in perspective a mountain unit containing the arrow 124 and the cutting head 120 according to this description, and the Central and left-hand cutting drums are not shown. The drawing is visible only some of the cutting teeth 188. Arrow cutters and the head Assembly contain cutting the engine 104 and transmission 108, entirely located inside the cutting drum 112, and two longitudinal walls 116, located at a distance from each other, which connect the cutting head 120 with an arrow 124. Each wall 116, made of steel plates bolted 128 to the corresponding side of the arrow 124.

Longitudinal walls 116 have holes (not shown) for the passage of electrical and conductive lines to get electricity and engine cooling, and to ensure the transfer of water for irrigation walls develop to regulate the amount of dust. These openings are smaller than in the longitudinal wall of the conventional unit, where they provide space for gear connecting� Ironman head with remote control, allowing its rotation.

Electrical energy is supplied through the longitudinal walls 16 to the motors 104, where it is converted into mechanical energy of rotation, for effective use of this energy when performing mining operations must reduce speed and increase torque. As shown in Fig.4, 5 and 6, the force of rotation is transmitted from the engine 104 through the shaft 130 connected to a sun or Central gear wheel 134 of the primary planetary gear mechanism. This sun gear transmits power to the planetary gears 140, which engages with the inner ring gear 148, which in this weekends primary gear mechanism. Then the force is transferred from the ring gear 148 through another shaft 160 to a sun gear 152 (see Fig.5) secondary complex planetary gear. It should be noted that the secondary sun gear 152 is output to the primary planetary gear and the input to the secondary planetary gear. From the sun gear 152 of the force of rotation is transmitted to the mechanism, consisting of a large deorbiting planetary gears 164, which are not included in engagement with the annular gear wheel at their full diameter, as is happening�t in normal planetary mechanism. Instead, a spur gear 168 attached to each side of each of the planetary gears 164. These spur gears 168 having the same axis of rotation, and large planetary gears 164, protrude through the openings 172 in the housing 176 of the main gearbox, which allows them to transmit the force of the outside housing 176. On each of Fig.5 and 6 shows two such combinations of spur gears and planetary gears.

On the outer side of the casing 176 spur gears 168 are engaged with a large ring gear 180, which is attached to the cutting drum 112 either directly or through an intermediate inner drum (not shown) which in turn is attached to the cutting drum 112. The cutting drum 112 rotates relative to the ribs 198 on the housing 176 of the main gearbox. Between the ribs 198 and the cutting drum 112, and between the different gear wheels and their supports has appropriate bearings (not shown). Force transmitted from the cutting drum 112 is converted into cutting effort to ensure the dredging of the material by means of cutting teeth 188.

The axis of all the above-mentioned gear wheels fixedly mounted �otnositelno casing 176 main gearbox. Each gear wheel can rotate, but it otherwise does not revolve around another gear. For example, none of the planetary gear does not rotate around the sun gear. Fig.6 shows one of the supports 192 for fixing the primary planetary gears to the casing of the main gearbox. In addition, in Fig.5 and 6 shows a support 196 for secondary sun gears, and a support 197 for spur gears 168.

In the above-described embodiment, the gear ratio from the motor shaft to the secondary sun gear is less than one. In other embodiments (not shown), which do not require reduction, the motor shaft could lead directly into rotation of the sun gear 152.

Various other features and advantages of the invention are evident from the accompanying claims.

1. Unit for the development of the ore bed comprising: a motor having a shaft,
the cutting drum mounted on the frame, for removing aggregate material from the ore bed, and the cutting drum contains the specified engine and attached to the ring gears,
primary planetary gear mechanism linking the engine and cutting drum for transmission of force from DWI�Atelier to the cutting drum and including a sun gear, coupled with a shaft for transmission of planetary gear wheels, meshing with the internal ring gear wheel, and
the secondary planetary gear mechanism including a sun wheel, receiving the force from the annular inner gear and the transmitting rotational force porbitals planetary gears, and the spur wheel attached to each side of each deorbiting planetary gears, each spur gear meshing with a ring gear attached to the cutting drum.

2. The Assembly according to claim 1, further comprising a casing of a gear box mounted inside the cutting drum containing said engine, and spur gears protrude through the holes in the specified casing to be transmitted beyond it.

3. The Assembly according to claim 1, in which the spur gears have the same axis of rotation as their corresponding neornithine planetary gear.

4. The Assembly according to claim 1, containing also the additional engine.

5. The Assembly according to claim 1, wherein the inner ring gear connected to a sun gear of the secondary planetary gear mechanism through the shaft.

6. Mining machine, comprising: an arrow
the two longitudinal wall�, located at a distance from each other, and a cutting head connected to the boom longitudinal walls, and including
- the engine having a shaft,
- the cutting drum containing said engine and attached to the ring gears,
- primary planetary gear mechanism linking the engine and cutting drum for force transmission from the engine to the cutting drum and comprising a sun gear wheel connected with a shaft to be transmitted to the planetary gears, meshing with the internal ring gear wheel, and
the secondary planetary gear mechanism including a sun wheel, receiving the force from the ring gear and the transmitting rotational force porbitals planetary gears, and the spur wheel attached to each side of each deorbiting planetary gears, each spur gear meshing with a ring gear attached to the cutting drum.

7. Mining machine according to claim 6, in which the longitudinal walls have holes for the passage of electrical and conductive lines for supplying electricity and engine cooling.

8. Mining machine according to claim 6, in which the spur gears have the same axis of rotation as their corresponding porbitals� planetary gear.

9. Mining machine according to claim 6, also containing an additional engine.

10. Mining machine according to claim 6, further comprising a casing of a gear box mounted inside the cutting drum, and spur gears protrude through the holes in the specified casing to be transmitted outside.



 

Same patents:

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5 cl, 5 dwg

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