CN207991798U - The torque loading device of strap on a kind of mobile foot limiter - Google Patents

Abstract

The utility model discloses a torque loading device for a cloth belt on a moving foot limiter, which comprises a main support frame (9), and a cloth belt fixing adapter block (5) is arranged under the top of the main support frame (9). ); the bottom of the fixed adapter block (5) is fixedly connected with the cloth tape (11) on the upper part of the moving foot limiter (1) that needs loading torque; the top of the main support frame (9) A circular through hole (90) is opened at the central position, and a torque transmission structure for transmitting externally applied torque is arranged in the through hole (90). The top of the connecting block (5) is fixedly connected, and the torque transmission structure is linked and connected with a laterally distributed actuator. The utility model can safely and reliably apply torque to the flexible cloth belt on the upper part of the moving foot limiter, and effectively solve the problems of force loading point and force loading direction movement when torque is applied to the cloth belt.

Description

A torque loading device for the cloth belt on the moving foot limiter

technical field

The utility model relates to the technical field of mechanical tests, in particular to a torque loading device for a cloth belt on a moving foot limiter.

Background technique

At present, for the manned space capsule, in order to ensure that it can withstand various conditions, it is necessary to conduct a static load test on the movable foot limiter installed in it to test the ability of the products installed in the manned space capsule to withstand static loads , so as to obtain the carrying capacity data and provide support for product design, research and development, and finalization.

Among them, for the moving foot limiter installed in the manned space capsule, the upper part has a flexible cloth belt, and it is usually necessary to apply torque to the flexible cloth belt, so that the manufacturer of the moving foot limiter can further detect the moving foot limiter. Whether the device will be deformed or damaged when it is loaded with torque.

For the existing torque loading device, it usually only directly loads the flexible cloth belt with the upper part of the moving foot limiter, and the specific form of loading is that an iron rod passes through the cloth belt to apply torque. During the torque process, it was found that there would be slippage between the cloth belt and the iron rod, which would lead to the movement of the force loading point and the force loading direction, resulting in inaccurate and difficult loading of the load.

Therefore, there is an urgent need to develop a device that can safely and reliably apply torque to the flexible cloth belt on the upper part of the moving foot limiter, and effectively solve the force loading point and force loading direction movement that occurs when torque is applied to the cloth belt. The problem.

Utility model content

In view of this, the purpose of this utility model is to provide a torque loading device for the cloth belt on the moving foot limiter, which can safely and reliably apply torque to the flexible cloth belt on the upper part of the moving foot limiter, effectively solving the problem of The problem of force loading point and force loading direction movement when the cloth tape is applied with torque is beneficial to a wide range of production applications and has great practical significance in production.

For this reason, the utility model provides a kind of torque loading device of cloth belt on the mobile foot limiter, comprises main support frame, and a cloth belt fixing adapter block is arranged under the top of said main support frame;

The bottom of the cloth belt fixed adapter block is fixedly connected with the cloth belt on the upper part of the moving foot limiter that needs to be loaded with torque;

A circular through hole is opened at the center of the top of the main support frame, and a torque transmission structure for transmitting externally applied torque is arranged in the through hole, and the lower part of the torque transmission structure is fixed with the cloth belt The top of the transfer block is fixedly connected, and the torque transmission structure is linked and connected with a laterally distributed actuator.

Wherein, the upper part of the torque transmission structure is connected with the bottom surface of a disc;

A ring of loading rope is sheathed on the outer wall of the disc, the loading rope has a part extending to the outside of the disc, and the loading rope has a part extending to the outside of the disc to connect with the actuator .

Wherein, the hydraulic output rod of the actuator is connected with the part of the loading rope extending to the outside of the disc through a load cell.

Wherein, the load cell is clamped with a portion of the loading rope that extends to the outside of the disk.

Wherein, the main support frame is a support frame in the shape of a "several".

Wherein, the actuator is installed on the side wall of a vertically arranged actuator fixing bracket;

The main support frame and actuator fixing bracket are arranged on the top of a workbench.

Wherein, the actuator is a hydraulic actuator, and the hydraulic actuator is connected with a hydraulic source.

Wherein, the torque transmission structure specifically includes a transmission shaft, an upper cylindrical roller tapered bearing and a lower cylindrical roller tapered bearing;

The transmission shaft is placed vertically, and the upper cylindrical roller tapered bearing and the lower cylindrical roller tapered bearing are respectively sleeved on the upper and lower ends of the transmission shaft;

The upper part of the transmission shaft passes through the upper cylindrical roller tapered bearing, the second center hole at the center of a bearing platen and is fixedly connected with the first center hole at the center of the disc, and the lower part of the transmission shaft passes through The lower cylindrical roller tapered bearing is fixedly connected with the third center hole at the center position of the top center of the cloth belt fixed adapter block;

The bottom of the bearing pressing plate is fixedly connected with the top of the main support frame.

Wherein, the shape and size of the upper cylindrical roller tapered bearing and the lower cylindrical roller tapered bearing correspond to the shape and size of the through hole at the top of the main support frame.

Wherein, a support rod is inserted through the lower part of the moving foot limiter;

The left inner wall and the right inner wall of the main support frame are respectively provided with a bracket clamping groove at a position corresponding to the bracket, and the left and right ends of the bracket are respectively locked with the two brackets. Tight groove and thread fixed connection.

It can be seen from the technical solution provided by the utility model above that, compared with the prior art, the utility model proposes a torque loading device for the belt on the moving foot limiter, which can safely and reliably tighten the moving foot limiter. The upper flexible cloth belt applies torque, which effectively solves the problem of force loading point and force loading direction movement when torque is applied to the cloth belt, which is beneficial to a wide range of production applications and has great practical significance in production.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the connection state when the torque loading device for the strap on the moving foot limiter provided by the utility model is carrying out torque loading on the strap on the moving foot limiter;

Fig. 2 is a kind of three-dimensional structural exploded schematic diagram when the torque loading device of the cloth belt on the moving foot limiter provided by the utility model is carrying out torque loading to the cloth belt on the moving foot stopper;

In the figure, 1 is the moving foot limiter, 2 is the actuator, 3 is the load cell, and 4 is the transmission shaft;

40 is a bearing pressure plate, 41 is an upper cylindrical roller tapered bearing, and 42 is a lower cylindrical roller tapered bearing;

5 is the cloth belt fixing adapter block, 6 is the loading rope, 7 is the support rod, 8 is the actuator fixing bracket, 9 is the main support frame, and 10 is the disc;

11 is a cloth belt, 12 is a workbench, 90 is a through hole, and 91 is a bracket clamping groove;

100 is the first center hole, 400 is the second center hole, 500 is the third center hole.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Referring to Fig. 1 and Fig. 2, the utility model provides a torque loading device for the cloth belt on the moving foot limiter, which is mainly used to safely and reliably apply torque to the flexible cloth belt on the upper part of the moving foot limiter. It effectively solves the problem of force loading point and force loading direction movement when torque is applied to the cloth tape.

The torque loading device for the tape on the moving foot limiter provided by the utility model specifically includes a main support frame 9, and a cloth tape fixing adapter block 5 is arranged under the top of the main support frame 9;

The bottom of the cloth tape fixing adapter block 5 is fixedly connected with the cloth tape 11 on the upper part of the moving foot stopper 1 that needs to be loaded with torque;

A circular through hole 90 is opened at the top center of the main support frame 9, and a torque transmission structure for transmitting externally applied (specifically applied by an actuator) torque is arranged in the through hole 90, so The bottom of the torque transmission structure is fixedly connected to the top of the fixed adapter block 5, and the top of the torque transmission structure is connected to the bottom surface of a disc 10;

A circle of loading rope 6 (preferably a steel wire rope) is sheathed on the outer wall around the disc 10, the loading rope 6 has a part extending to the outside of the disc 10, and the loading rope 6 has a part extending to the outside of the disc 10. The extended part is connected to a laterally distributed actuator 2 .

In the present utility model, it should be noted that the disc 10 has two functions, the first function is to convert the torque force into a linearly loaded force, and the second function is that the torque is equal to the force multiplied by the arm of force. , after the diameter of the disc, that is, the moment arm, is determined, the loading of the torque can be realized by changing the magnitude of the loading force.

In the present utility model, it should be noted that the actuator 2 is a hydraulic actuator, and its function is to convert hydraulic energy from a hydraulic source into mechanical energy and provide static load loading. In terms of specific implementation, the static pressure axial servo actuator of the ML16 type produced by Changchun Mechanical Science Research Institute Co., Ltd. can be used, with a rated load of 16KN and a standard displacement of 400mm.

In the present utility model, specifically, the hydraulic output rod of the actuator 2 is connected to the part of the loading rope 6 extending to the outside of the disc 10 through a load cell 3 ;

It should be noted that the load cell 3 also has the function of an adapter.

In the utility model, the sensor in the load cell 3 can specifically use the S-type LCS-S7 load cell of Shanghai Tianhe Automation Instrument Co., Ltd., with a rated range of 20KN. It should be noted that the load cell is a force measuring instrument composed of a bridge circuit composed of a plurality of elastic bodies that can deform after being stressed and a resistance strain gauge that can sense the deformation. Its function is to convert the force into The electrical signal proportional to the magnitude of the force provides real-time feedback of the magnitude of the loaded load.

In specific implementation, the load cell 3 is engaged with the part of the loading rope 6 that extends to the outside of the disc 10 .

In the present utility model, in terms of specific implementation, the main support frame 9 is preferably a support frame in the shape of "几".

In the present utility model, in specific implementation, the actuator 2 is installed on the side wall of a vertically arranged actuator fixing bracket 8 (for example, the left side wall of the actuator fixing bracket 8 shown in FIG. 1 superior).

In the present utility model, specifically, the main support frame 9 and the actuator fixing bracket 8 are arranged on the top of a workbench 12 .

In the present utility model, in order to be able to transmit the torque applied by the outside (specifically applied by the actuator), the torque transmission structure specifically includes the transmission shaft 4, the upper cylindrical roller tapered bearing 41 and the lower cylindrical roller tapered bearing 42;

The transmission shaft 4 is placed vertically, and the upper tapered roller bearing 41 and the lower tapered roller bearing 42 are respectively sleeved on the upper and lower ends of the transmission shaft 4 (specifically, an interference fit connection);

The top of the transmission shaft 4 passes through the upper cylindrical roller tapered bearing 41, the second center hole 400 at the center of a bearing plate 40, and is fixedly connected with the first center hole 100 at the center of the disc 10 (for example For plugging), the bottom of the transmission shaft 4 passes through the lower cylindrical roller tapered bearing 42 and is fixedly connected with the third central hole 500 at the center position of the top center of the cloth tape fixing adapter block 5 (for example, plugging );

The bottom of the bearing pressing plate 40 is fixedly connected with the top of the main support frame 9 .

In terms of implementation, the first center hole 100 at the center of the disk 10 is an inner hexagon hole, and the upper part of the transmission shaft 4 is an outer hexagon cylinder that cooperates with the first center hole 100 .

Specifically, the third central hole 500 at the top center of the tape fixing adapter block 5 is also an inner hexagonal hole, and the lower part of the transmission shaft 4 is an outer hexagonal hole that cooperates with the third central hole 500. cylinder.

It should be noted that the shape and size of the upper tapered cylindrical roller bearing 41 and the lower tapered roller bearing 42 are matched with the shape and size of the through hole 90 at the top of the main support frame 9, so that the The torque transmission structure can be supported and held by the main support frame 9 .

In the present utility model, in terms of specific implementation, a support rod 7 is inserted through the lower part of the moving foot limiter 1;

The left inner wall and the right inner wall of the main support frame 9 are respectively provided with a bracket clamping groove 91 at a position corresponding to the bracket 7, and the left and right ends of the bracket 7 are respectively connected with the two brackets. A bracket clamping groove 91 is fixedly connected with threads.

In the present utility model, in specific implementation, the actuator 2 is preferably a hydraulic actuator, and the hydraulic actuator is connected to a hydraulic source, and the hydraulic source is used to provide the hydraulic actuator with Stable kinetic energy is preferably a hydraulic source that can provide stable pressure and flow.

It should be noted that, for the present utility model, it is a tapered bearing disk loading structure, in which two cylindrical roller tapered bearings 41 and 42 provide rigid support for the transmission shaft 4 and constrain the other 5 degrees of freedom of the transmission shaft 4 , release its axial rotation, and only use it to deliver torque, which can solve the problem that the force loading point and direction of force loading on the cloth belt move when the flexible cloth belt on the upper part of the moving foot limiter is loaded by torque. The utility model The contraction of the actuator drives the torque transmission structure to rotate, and then drives the cloth belt on the upper part of the moving foot limiter as the torque application object, so that the torque is applied to the cloth belt, and finally realizes the reliable torque loading of the flexible cloth belt.

In order to understand the utility model more clearly, the working mode of the utility model is described below:

First, the hydraulic output rod of the actuator 2 is connected to the disc 10 through the load cell 3 and the loading rope 6;

Next, since the upper part of the transmission shaft 4 is an outer hexagonal cylinder that cooperates with the inner hexagonal hole in the middle of the disc 10, the lower part of the transmission shaft 4 is an outer hexagonal cylinder that cooperates with the inner hexagonal hole in the middle of the adapter tooling where the cloth tape is fixed. Cylinder, according to the relative positions of the components in Fig. 2, the upper half and the lower half of the transmission shaft 4 are respectively loaded into the upper cylindrical roller tapered bearing 41 and the lower cylindrical roller tapered bearing 42;

Next, install the lower half of the transmission shaft 4 together with the upper cylindrical roller tapered bearing 41 and the lower cylindrical roller tapered bearing 42 in the through hole 90 at the center position of the top of the main support frame 9;

Then, make the transmission shaft 4 top pass through the second central hole 400 at the central position of the bearing plate 40, and fix the bearing plate 40 on the top of the main support frame 9 by screws;

Then, the disc 10 is connected to the upper part of the transmission shaft (specifically, an outer hexagonal cylinder) through the first central hole 100 (an inner hexagonal hole) at the central position;

Then, the cloth tape fixed transfer block 5 is fixedly connected to the cloth tape 11, specifically: the cloth tape fixed transfer block 5 is preferably a three-layer steel plate connected together by four screws, and the three-layer steel plate Clamping cloth belt 11;

Then, the bracket 7 is installed on the bracket clamping groove 91 of the left side inner wall and the right side inner wall of the main support frame 9 with screws;

Then, the lower part of the mobile foot limiter 1 is connected and locked with the support rod 7 through the U-shaped groove;

Finally, under the drive of the hydraulic source, the loading rope 6 is tightened by driving the actuator 2 to pull back, driving the disc 10 to rotate counterclockwise, and the disc 10 passes through the first center hole 100 at its center position (i.e. a inner hexagon hole) to drive the transmission shaft 4 to rotate, the transmission shaft 4 fixes the adapter block 5 through the cloth belt connected to its lower part, and further drives the flexible cloth belt 11 on the top of the mobile foot stopper 1 to rotate, and then completes the upper torque of the cloth belt 11 The loading, thereby realizes the purpose of the utility model.

In summary, compared with the prior art, the utility model provides a torque loading device for the cloth belt on the moving foot limiter, which can safely and reliably apply the flexible cloth belt on the upper part of the moving foot limiter. Applying torque can effectively solve the problem of force loading point and force loading direction movement when torque is applied to the cloth tape, which is beneficial to a wide range of production applications and has great practical significance in production.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (10)

1. a kind of torque loading device of cloth belt on the moving foot limiter, it is characterized in that, comprise main support frame (9), the top below of described main support frame (9) is provided with a cloth belt fixing adapter block ( 5); The bottom of the cloth tape fixing adapter block (5) is fixedly connected with the cloth tape (11) on the upper part of the moving foot limiter (1) that needs to be loaded with torque; There is a circular through hole (90) at the top center position of the main support frame (9), and a torque transmission structure for transmitting externally applied torque is arranged in the through hole (90), and the torque transmission The lower part of the structure is fixedly connected with the top of the cloth tape fixing adapter block (5), and the torque transmission structure is linked and connected with a horizontally distributed actuator (2). 2. The device according to claim 1, characterized in that the upper part of the torque transfer structure is connected to the bottom surface of a disc (10); A ring of loading rope (6) is sheathed on the outer wall around the disc (10), the loading rope (6) has a part extending to the outside of the disc (10), and the loading rope (6) has a The outer extension part of the disc (10) is connected with the actuator (2). 3. The device according to claim 2, characterized in that, the hydraulic output rod of the actuator (2) is connected to the disc (6) through a load cell (3) and the loading rope (6). 10) The externally extended parts are connected. 4. The device according to claim 3, characterized in that, the load cell (3) is clamped with the part of the loading rope (6) extending to the outside of the disc (10). 5. The device according to claim 1, characterized in that, the main support frame (9) is a support frame in the shape of a "several". 6. device as claimed in claim 1, is characterized in that, described actuator (2) is installed on the side wall of a vertically arranged actuator fixing support (8); The main supporting frame (9) and actuator fixing bracket (8) are arranged on the top of a workbench (12). 7. The device according to claim 1, characterized in that the actuator (2) is a hydraulic actuator, and the hydraulic actuator is connected to a hydraulic source. 8. The device according to any one of claims 2 to 4, characterized in that, the torque transmission structure specifically comprises a transmission shaft (4), an upper cylindrical roller tapered bearing (41) and a lower cylindrical roller tapered bearing (42); The transmission shaft (4) is placed vertically, and the upper tapered roller bearing (41) and the lower tapered roller bearing (42) are respectively sleeved on the upper and lower ends of the transmission shaft (4); The upper part of the transmission shaft (4) passes through the upper cylindrical roller tapered bearing (41), the second center hole (400) at the center position of a bearing pressure plate (40) and the second center hole (400) at the center position of the disc (10). The first central hole (100) is fixedly connected, and the lower part of the transmission shaft (4) passes through the lower cylindrical roller tapered bearing (42) and is connected to the second center position of the top center of the cloth belt fixed adapter block (5). The three central holes (500) are fixedly connected; The bottom of the bearing pressing plate (40) is fixedly connected with the top of the main support frame (9). 9. The device according to claim 8, characterized in that, the shape and size of the upper cylindrical roller tapered bearing (41) and the lower cylindrical roller tapered bearing (42) are the same as those of the main support frame (9) The shape and size of the through hole (90) on the top match accordingly. 10. The device according to claim 8, characterized in that, a support rod (7) is inserted through the lower part of the moving foot limiter (1); The left inner wall and the right inner wall of the main support frame (9) are respectively provided with a bracket clamping groove (91) at a position corresponding to the bracket (7), and the bracket (7) The left and right ends are respectively threaded and fixedly connected with the two bracket clamping grooves (91).