Device to making instrument sensitive element torsion suspensions. RU patent 2519888.

FIELD: machine building.

SUBSTANCE: proposed device comprises mechanical reduction gearboxes, and the drive of feeder, braiding mechanism and product assembly mechanism. Note here that said braiding mechanism is composed by two discs to revolve in opposition equipped with three grooves each for fitting strands being braided therein. Switch is arranged between disc shafts to swing in synchronism with revolution of discs to displace the strands in said grooves. Guide plate is arranged above said disc and has the opening for tightening of strands. Feeder is composed of weights secured at strand end. Product assembly mechanism is composed by gripper to fix the start of strands that is rigidly secured at the nut displacing vertically with the help of screw relative to braiding mechanism. Switch working surface shape complies with preset path of stands at braining (ref. to fig. 2). Product assembly mechanism is equipped with reverser and variator to change the gripper displacement rate relative to braiding mechanism.

EFFECT: higher system response speed.

3 cl, 2 dwg

The present invention relates to the technique of the production of woven products, mainly intended for the manufacture of torsion suspension of sensitive elements (SE) devices and can be used in magnetometry, seismology, geodesy, meteorology, electrical engineering and others, i.e. to be used for the production of torsions SE highly sensitive magnetometers, accelerometers, seismometers, Nikonorov, microbarograph, galvanometers and in the alarm sensors.

Known braiding machine (application for invention of the Russian Federation №93037810, IPC D04C 3/12, the priority of 23.07.93 published 20.03.96), which can be used for the manufacture of cords, ropes and cables of wide use of various materials. Braiding machine contains a body, in the upper part of which is mounted braiding head, which forms a Desk area braiding space. In braiding the cylinder, installed with the possibility of rotational motion kinematically connected hollow spindles, which contained tubular premenapausal and strengthened lionfish hung on them bobbins, which on the table mounted sensor break monitoring locks. In the center of the table has the caliber that defines the shape of the cross section of the finished product. On the bobbins are paljuski with balances and exposed straps. There is a signaling device is electrically connected with the gauge of the control of breakage of the strands. The machine is equipped with vozduhotehnika and ground maintenance.

The disadvantages of this device is the complexity of the operation, due to the presence of a large number krylatyh gears. In addition, the device is able to weave the product or in the form of a round cord, or as a flat braid and does not allow to give products a certain form (for example, the form pigtails). Furthermore, known braiding machine is not suitable to obtain products with a diameter of less than 0.5 mm

A device for making a match (for a utility model patent RF # 47903, IPC D04C 3/12, priority 05.04.2005, published 10.09.2005, containing a body, in the upper part of which is mounted a mechanism netting, made in the form braiding head, which forms a Desk area braiding space, braiding the cylinder, installed with the possibility of rotational motion of at least two kinematically connected hollow spindle (represent the feed mechanism), which contained at least two tubular pregenerates and reinforced at least two adjacent lionfish with suspended on them at least three bobbins. The device additionally contains a manual and electric actuators with toothed gears, transmission nodes movement from the actuator to the gears, the mechanism of collection, made in the form of exhaust clips, and at least two constraints. Limiters are designed to ensure that padenprovide on a given path. The trajectory of padenprovide is a closed line in the form of a figure eight. The device allows to produce the wick by wickerwork plaits of cotton thread with a diameter of 0,5-1,5 mm

The disadvantage of this device is the inability to use to weave three strands (from one or more threads) in diameter 0,01-0,5 mm and to receive products with a diameter of 0,03-1,5 mm

The closest to the technical nature of a device for manufacturing spiral-anisotropic torsions (threads) UISAT-1 (Kopytenko Yu., Sergushin P., Petrishchev M., Levanenko V., Perechesova A. The device for manufacturing torsion bars with helical anisotropy UISAT-1 // Key Engineering Materials Vol. 437 (2010). - Trans Tech Publications, Switzerland, 2010. P. 625-628). Known device is attached to a single base (table) and the United driven mechanisms for making, weaving and collection products. This mechanism netting is designed as two discs, is able to rotate in mutually opposite direction and equipped with every three slots to accommodate locks. Between the axes of the drive is switch the arrow, coupled beam mechanism with the drive and have the opportunity to make a swinging motion simultaneously (together) with rotation of disks, and move the hair from one of the slots in the other. On any disks attached guide with a hole that pulls together strands, with the possibility of movement in height.

The mechanism is implemented in the form of goods, attached to the ends of the interlaced strands and ensuring the constant tension in the process of weaving. The collection mechanism is made in the form of capture, fixing the beginning of strands, rigidly fixed on the nut with the possibility of using the screw of vertical travel along the axis of the screw on the mechanism of weaving.

Known device allows to produce by netting of three strands "pigtail" diameter 0,03-1.5 mm, used for torsion suspension of sensitive elements devices with predetermined characteristics (material, thickness, structure, density of weaving, module torsion, durability and other). Torsion bar suspension with specified characteristics have the properties of elastic anisotropy. In turn, the use of such torsion suspension in the manufacture SE devices allows:

- to reduce the module torsion (enhanced sensitivity);

- to increase the resistance to change of climate, to raise temporary stability (decrease temperature drift zero);

- increases resistance to dynamic loads.

Factors influencing the characteristics of the product in the process of weaving: thickness, structure, pre-spin and material interlaced strands, the feed speed and tension strands, and the angle weave and related density of weaving.

The specificity and uniqueness of this device is that as raw materials for weaving the specially prepared special material - filaments synthetic high-modulus threads (belong to the class of para-aramid fibres). Diameter of 0.01 mm, length 400 mm

However, the device has the following disadvantages: the instability caused by the inconsistency of the movements of netting mechanism associated with the form of the switch, affect the uniformity of weaving; some complexity in operation and setting), insufficiently high performance (up to 100 mm/hour)associated with design features that are specified in the design of devices. Guide with a hole that pulls together strands, has two possible positions (height) - this is not sufficient to regulate the density of weaving. These factors affect the quality of torsion suspension, easy operation/maintenance, the difficulty in setting up and performance of devices for manufacturing spiral-anisotropic torsions.

Solved by the authors of the technical task is to develop a simple and convenient in operation for production of torsion bar suspension with increasing speed and without compromising their technical characteristics.

To solve technical problems in the device containing a mounted on a single base United mechanical gearboxes with actuator mechanisms for making, weaving and collection products, make the following changes and additions.

The mechanism of weaving made in the form of two discs, is able to rotate in a horizontal plane in mutually opposite direction, and provided every three slots to accommodate locks. On the disks is that they can move on height guide with a hole, pulling together the strands. Between the axes of the drive is a switch connected beam mechanism with the drive. The switch has the ability swinging movement synchronized with the rotation of the disk and moving the interlaced strands in the slots. In the invention features optimized shape of the working surface (desktop profile, design the profile) switch obtained geometric method for constructing profiles of Cam mechanisms, which can be attributed to the switch. Relying on theory of machines and mechanisms, namely the scope of the analysis and design of Cam mechanisms was solved the problem of synthesis of a Cam mechanism provided that specified theoretical (center) profile, which in the coordinate system of the Cam describes the center section of the working profile locks when moving her on the constructive Cam profile. Under constructive understood outside working profile of the Cam. The optimal trajectory of the strands is set, that is determined in the design. Theoretically proved and experimentally confirmed that the configuration (form) of the working surface of the switch connected with the determination of the optimal trajectory of the strands in the weaving of that, in turn, associated with specified characteristics, the structure of the spit. Given the trajectory of the strands is a closed line in the form of a figure eight, the dimensional characteristics which are determined by the construction. Collected in this way the optimum configuration of the working surface of the switch was trudnootdelemy geometric terms, but good not only for manufacturing, and for further operation. As the experiments showed that the selected shape of the working surface of the switch has not only provided the stable work of the system as a whole, but also together with other elements (including new) allowed to adjust the density of weaving.

The mechanism is made in the form of goods, fixed to the ends of the strands.

The mechanism of collection of products is a capture, fixing the beginning of strands and has the ability vertical movement on a mechanism of weaving. In the mechanism of collection of products in the proposed decision on the axis of the screw driving nut (which is rigidly fixed to the capture, fixing the beginning of strands), have a variable that allows you to change the speed of motion capture on a mechanism of weaving. In addition, the mechanism of collection of products equipped with reverse (switch the direction of movement)that switch move nuts and used to return the collection mechanism in the original (primary) position.

The proposed design changes: the changing shape of the working surface of the switch, the introduction of variable-speed drive and reverse in the mechanism of collection of products that affect the achievement of the expected result.

Changing the shape of the working surface of the basic element of weaving switch avoids the problems associated with the instability mechanism of weaving, due to the inconsistency of the movements of the elements of the mechanism of weaving that affect the uniformity of weaving. And so gives getting asked the technical characteristics of the manufactured torsion bar suspension.

Introduction of progressive transmission in the design of the device allows to adjust the density of weaving, unattainable in the prototype, which in turn simplifies the configuration of the device and allows to improve the quality of torsion suspension, as well as to improve performance in the process of netting in reverse mode.

Thus, the configuration change shape of the working surface of the switch, the introduction of variable-speed drive and reverse in the collection mechanism of the finished product and the corresponding changes in the characteristics of the mechanical gearbox (change gear ratios pulleys), simplify operation and maintenance of the device due to the semi-track collection mechanism in the original (primary) position and performance of the device in General without reducing the requirements for technical characteristics of the manufactured torsion bar suspension.

The proposed solution is illustrated by figure 1, which shows the diagram of the device and figure 2, which presents the mechanism of weaving.

Figure 1:

1 - drive (engine);

2 - the first mechanical reducer;

3 - beam gear selector;

4 - node weaving (the feed mechanism, weaving and collection of products);

5 - second mechanical reducer;

7 - reverse.

In the site of weaving 4 mechanism of weaving figure 2 presents the following elements:

8, 9 - disk drives installed in the same horizontal plane with the possibility to rotate around their axes in mutually opposite direction;

10, 11, 12 - the slots on the drive 8 to host the interlaced strands;

13, 14, 15 - grooves on the disk 9 to host the interlaced strands;

16, 17, 18 - interlaced strands;

19 - switch located between the axes of the drive 8 and 9, coupled beam mechanism with drive and want to move strands 16, 17, 18;

20 - the axis transmitting motion from beam mechanism switch (figure 1);

21, 22 - shafts, transmitting motion from the first mechanical gearbox 2 drives 8 and 9, respectively.

Feeder node weaving 4 is presented in figure 1 as follows:

23, 24, 25 - cargo, fixed to the ends of the strands and ensuring the constant tension in the process of weaving.

The collection mechanism in the node weaving 4 is presented in figure 1 the following elements:

26 - capture, fixing the beginning of strands and collecting the finished product as the intertwining strands;

27 - guide with a hole that pulls together strands and installed with the possibility of displacement height.

28 - nut, which is rigidly fixed to the capture of 26 capable of screws vertically to move along the axis of the screw on the mechanism of weaving;

29 - screw driving nut 28;

30 - shaft that transmits the movement from CVT 6 screw 29.

The CVT 6 made for example in the form of two series-connected pulleys: leading the three-pulley, located on the output shaft of the second mechanical gearbox 5, and three-pulley mounted on the axis of the screw 29 driving nut 28. The variable may also be made in the form of almost any gearing, for example, cone, plate-belt and other

Reverse 7 can be made, for example, in the form of mechanical reducer, consisting of two series-connected pulleys: leading located on the shaft 22, and the slave, located on the output shaft of the second mechanical gearbox 5. In the mode of weaving pulleys reverse 7 not working (drive belt (belt) is cleared) - reverse 7 disabled.

The reverse can also be made in the form of mechanical reducer, consisting of a toothed wheels, or almost any reverse mechanism.

The first mechanical gear 2 can be done, for example, in the form of mechanical reducer, consisting of pulleys and gears. From the drive the motion is passed to the pulleys and gear wheels. Gears located on the shafts 21 and 22, give drives 8 and 9 mutually-counter rotation. On the output shaft of the first mechanical gearbox 2 installed gear wheel driving beam mechanism of the drive switch 3. The first mechanical gear 2 can also be made in the form of almost any mechanism, the transmitting and transforming torque, with a few mechanical transmission.

The second mechanical gearbox 5 can be done, for example, in the form of mechanical reducer, consisting of pulleys. Output shaft of the first mechanical gearbox 2 drives drive pulley second mechanical gearbox 5, and other pulley drive the output shaft of the second mechanical gearbox 5, which is leading the three-pulley CVT 6, passing movement of the three-step pulley installed on the axis of the screw 29 driving nut 28. The second mechanical gearbox 5 also can be made in virtually any mechanism, the transmitting and transforming torque, with a few mechanical transmission.

The operation principle of the device consists in the following: carry out the adjustment (adjustment) according to the given characteristics of the torsion bar suspension. By changing the position height (two positions) guide 27 change angle weave, and by including (depending on tasks) one of three pairs of sheaves of CVT 6 adjust the speed of ascent capture 26. Thus speed of movement of seizure associated with specified characteristics torsion suspension, namely with density of weaving that affects the module torsion and strength. Further capture of 26 fix beginning strands 16, 17, 18, then strands pass through the hole guide 27. The capture of 26 fixed on the nut 28, with the possibility of vertical progressive move by screw 29, driven via a shaft 30 and CVT 6 in the second movement mechanical gearbox 5, connected to the drive 1 through the first mechanical gear 2. Three strands of the interlaced 16, 17 and 18 distribute in the slots of two horizontal drive 8 and 9 (two strands in the grooves of one disk, one - in the groove of another), for example, 10, 13, and 14. The obligatory condition of placing the strands is that one of the pair of slots should be free. Under paired slots mean grooves running simultaneously while moving strands from the groove of one disk in the slot opposite disk. Further, through the feed mechanism, the ends of the strands 16, 17 and 18 fix the cargo 23, 24 and 25. The choice of the mass of freight carried out experimentally, and a weight of goods is from 3 to 7 grams, depending on the desired tension locks. Carry on. Drive 1 using the elements of the first mechanical gearbox 2 through shafts 21 and 22 attached drives 8 and 9 counter rotation. Strands 16, 17 and 18 are moved into the free slots opposite disc using a switch 19, doing swinging movement axis 20 discuss with your disks 8 and 9 because of beam mechanism of the drive switch 3. For example, in the selected case strand 17 of groove 13 9 disk is moved in a groove 11 disk 8, section 16 of the groove 10 disc 8 moves into the groove 15 disk 9, section 18 of the groove 14 9 disk is moved in a groove 12 disk 8.

And this process continues to the top (end) the provisions nuts 28.

After netting finished product is removed from the unit by opening the capture and include reverse 7 to return the collection mechanism to the original position (initial). The reverse is as follows: disable the second mechanical gearbox 5 (off the pulley working on the output shaft) and include mechanical gear is engaged in reverse (to the output shaft of the second mechanical gearbox 5 connect the pulley reverse). Drive pulley mounted on the shaft 22 and set in motion the first mechanical gearbox 2, drives the driven pulley, located on the output shaft of the second mechanical gearbox 5. The shaft passes the rotation of the leading three-pulley variator, also located on the output shaft of the second mechanical gearbox 5, then the slave three-pulley CVT 6 transmits motion screw 29 (on the axis of which it is installed), driving nut 28, which is the capture of 26. The capture of 26 is returned in the original (primary) position. In this mode, the device is idle, implementing the return of the collection mechanism to the original position.

The claimed device has the ability to set the required parameters of elastic torsion suspension (density of weaving, extension, torsion, durability and other). Changing the shape of the working surface of the switch in conjunction with the introduction of variable-speed drive enable more efficiently monitor asked specifications, and together with the use of reverse provides simplicity and convenience in operation, and improve performance of the device in General.

Today elastic torsion suspension, made with the help of the proposed device, used in magnetically sensitive items (MCA) magnetostatic Vario (mrvs), part of the experimental geophysical complex GI-MTS-1 (IZMIRAN SPb). Elastic torsion suspension is a "pigtail" of the three strands (one thread in each strand) and creates the axis of rotation of the indicator magnet. The density of the weave - 7 knots/mm The envelope of the cross-section of elastic torsion suspension is an ellipse with greater axis 0.04 mm and less axis 0.03 mm; General length of suspension - 100 mm Breaking load - 1,5 H. Device performance is 2 x 100 mm/hour (including preparation), that is twice the speed characteristic of the prototype.

The main advantage of the MRV with such MCA is the registration of magnetic fields and their variations in the frequency range 0...15 Hz with RMS noise level not exceeding

while the instruments used due to the torque suspensions are not sensitive to changes in climatic factors and have increased resistance to dynamic loads during transport (more than 15 g).

Made of elastic torsion suspension can have a wide range of applications in the manufacture CE: in magnetometers, accelerometers, nakanomori, microbarograph, vibration detectors that are used to monitor changes in the physical quantities (respectively): parameters of magnetic fields, accelerations, angular displacements, pressure, seismic vibrations, etc. Using the properties of elastic anisotropy at manufacturing suspensions SE torsion devices involves the improvement of these devices (the increased sensitivity of thermal stability and resistance to dynamic loads).

The proposed device for the manufacture of torsion suspension of sensitive elements of the instruments are compact, portable, easy to use, with an electric drive. Has the following overall dimensions: weight - 5 kg dimensions (L X In X Y) -345 x 650 x 360 mm

1. Device for production of torsion suspension of sensitive elements devices, containing mounted on a single base United the first and second mechanical gearboxes with actuator mechanisms for making, weaving and collection products, this mechanism netting is designed as two discs, is able to rotate in a horizontal plane in mutually opposite direction and equipped with every three slots to accommodate the interlaced strands, and between the axes of the drive is a switch capable of swinging movement synchronized with the rotation of the disk and moving strands in their grooves, while on the disks is that they can move on height guide with a hole that pulls together strands; the mechanism is made in the form of weights attached to the ends of the strands, and the mechanism of collection of products is a capture, fixing the beginning of strands, rigidly fixed on the nut capable of screws vertically to move along the axis of the screw on the mechanism of weaving, characterized in that the shape of the working surface of the switch selected coherent with a given trajectory of the strands in the weaving and has the form presented in figure 2, a mechanism for collecting product is equipped with a reverse and variator allowing you to change the speed of motion capture regarding the mechanism of weaving.

2. The device of claim 1, characterized in that the variable-speed drive is designed as two consecutive three-pulleys, one of which is located on the output shaft of the second mechanical gearbox and the other on the axis of the screw driving nut.

3. The device of claim 1, characterized in that the reverse is made in the form of mechanical reducer, consisting of two series-connected pulleys: leading located on the shaft that conveys movement from the first mechanical reducer, and a slave, located on the output shaft of the second mechanical gearbox.