CN216978220U - Testing arrangement of stopper static braking moment - Google Patents
Testing arrangement of stopper static braking moment Download PDFInfo
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- CN216978220U CN216978220U CN202121753893.9U CN202121753893U CN216978220U CN 216978220 U CN216978220 U CN 216978220U CN 202121753893 U CN202121753893 U CN 202121753893U CN 216978220 U CN216978220 U CN 216978220U
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Abstract
The utility model relates to a testing device for static braking torque of a brake, which comprises an arm length adjustable arm structure (1), a transmission structure (2), a torque and rotation speed sensor (3) and a controller (5), wherein one end of the transmission structure (2) is in transmission connection with the head of the adjustable arm structure, the other end of the transmission structure (2) is in transmission connection with a transmission shaft of a brake (4) to be tested, the torque and rotation speed sensor (3) is installed on the transmission structure (2), and the arm length adjustable arm structure (1), the transmission structure (2) and the torque and rotation speed sensor (3) are all connected to the controller (5). Compared with the prior art, the utility model has the advantages of convenient control, high working efficiency and high test precision.
Description
Technical Field
The utility model relates to the technical field of crane safety, in particular to a testing device for static braking torque of a brake.
Background
The brake is a mechanical part for decelerating or stopping a moving part in a machine, in a crane, the brake is an important safety device, and the static braking torque is one of the most important parameters for the performance of the weighing brake and is also one of main data for the performance test of a crane test system. The existing testing device for the static braking torque of the brake mostly adopts the mode that the arm length is unchanged and the weight combination is changed to increase the torque step by step, the time for loading and unloading weights in the test is long, the strength is high, the torque is increased step by step, and the testing precision is low. Therefore, it is necessary to design a testing device for the static braking torque of the brake, which has the advantages of convenient control, high testing precision and high working efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a testing device for the static braking torque of a brake.
The purpose of the utility model can be realized by the following technical scheme:
the device comprises an arm length adjustable arm structure, a transmission structure, a torque and speed sensor and a controller, wherein one end of the transmission structure is in transmission connection with the head of the adjustable arm structure, the other end of the transmission structure is in transmission connection with a transmission shaft of a brake to be tested, the torque and speed sensor is installed on the transmission structure, and the arm length adjustable arm structure, the transmission structure and the torque and speed sensor are all connected to the controller.
Preferably, the arm length adjustable arm structure comprises an arm rod, a weight and a driving assembly, the driving structure is in driving connection with the head of the arm rod, the weight is movably connected with the arm rod through the driving assembly, and the driving assembly drives the weight to move along the length direction of the arm rod.
Preferably, the arm rod is of a hollow structure, and the driving assembly is installed in the hollow structure.
Preferably, drive assembly include linear motion module and gyro wheel, the linear motion module install on the armed lever, the gyro wheel rotary type install on the motion piece of linear motion module, the armed lever on the lower limb be equipped with and be used for the rolling roll groove of gyro wheel, the gyro wheel card establish the roll inslot, the weight hang the gyro wheel on, the linear motion module be connected to the controller.
Preferably, the linear motion module comprises a screw type linear module.
Preferably, the rollers are arranged in two groups and symmetrically distributed on two sides of the arm rod along the thickness direction of the arm rod.
Preferably, the transmission structure include transmission shaft, first shaft coupling and second shaft coupling, the transmission shaft with arm length adjustable arm of force structure's head transmission be connected, torque speed sensor install between first shaft coupling and second shaft coupling, first shaft coupling with the transmission shaft transmission be connected, the second shaft coupling with the transmission shaft transmission of the stopper that awaits measuring be connected.
Preferably, the transmission shaft is in transmission connection with the head of the arm length adjustable arm structure through a first spline, the first coupler is in transmission connection with the transmission shaft through a second spline, and the second coupler is in transmission connection with the transmission shaft of the brake to be tested through a third spline.
Preferably, two ends of the torque and rotation speed sensor are respectively connected with the first coupling and the second coupling through elastic keys.
Preferably, the controller comprises a microprocessor with digital processing capability.
Compared with the prior art, the utility model has the following advantages:
(1) the arm length is smoothly adjusted through the arm length adjustable arm structure, data are reliable, and the testing precision is high;
(2) the arm length adjustable force arm structure can control the automatic operation of the linear motion module to drive the weights to move through the controller, so that the arm length can be automatically adjusted, manual operation is not needed, the control is convenient, and the working efficiency is high.
Drawings
FIG. 1 is a schematic structural diagram of a device for testing static braking torque of a brake according to the present invention in a first arm length position;
FIG. 2 is a schematic structural view of a second arm length position of the device for testing the static braking torque of a brake according to the present invention;
fig. 3 is a schematic block diagram of a device for testing the static braking torque of a brake according to the present invention.
In the figure, 1 is an arm length adjustable arm structure, 2 is a transmission structure, 3 is a torque and rotation speed sensor, 4 is a brake to be tested, 5 is a controller, 11 is an arm rod, 12 is a weight, 13 is a screw rod, 14 is a nut, 15 is a servo motor, 16 is a roller, 21 is a transmission shaft, 22 is a first coupler, and 23 is a second coupler.
Detailed Description
The utility model is described in detail below with reference to the figures and the specific embodiments. Note that the following description of the embodiment is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiment.
Examples
As shown in fig. 1 to 3, the present embodiment provides a testing apparatus for a brake static braking torque, the apparatus includes an arm length adjustable type force arm structure 1, a transmission structure 2, a torque and speed sensor 3 and a controller 5, one end of the transmission structure 2 is in transmission connection with a head of the adjustable type force arm structure, the other end of the transmission structure 2 is in transmission connection with a transmission shaft of a brake 4 to be tested, the torque and speed sensor 3 is installed on the transmission structure 2, the arm length adjustable type force arm structure 1, the transmission structure 2 and the torque and speed sensor 3 are both connected to the controller 5, the controller 5 includes a microprocessor with a digital processing function, such as a single chip microcomputer, a DSP, and the like.
Arm of force structure 1 with adjustable arm length includes armed lever 11, weight 12 and drive assembly, and drive structure 2 is connected with the head transmission of armed lever 11, and weight 12 passes through drive assembly and 11 swing joint of armed lever, and drive assembly drive weight 12 moves along 11 length directions of armed lever. The arm 11 is a hollow structure in which the driving assembly is installed. Drive assembly includes linear motion module and gyro wheel 16, and the linear motion module is installed on armed lever 11, and the gyro wheel 16 rotary type is installed on the motion piece of linear motion module, and armed lever 11 upper and lower edges is equipped with and is used for the rolling roll groove of gyro wheel 16, and the gyro wheel 16 card is established at the roll inslot, and weight 12 hangs on gyro wheel 16, and the linear motion module is connected to controller 5. The linear motion module comprises a screw type linear module, the screw type linear module comprises a screw 13, a nut 14 and a servo motor 15, the nut 14 is a motion block of the screw type linear module, and the servo motor 15 drives the screw 13 to move and drives the nut 14 to move on the screw 13. Two groups of rollers 16 are arranged and symmetrically distributed on two sides of the arm lever 11 along the thickness direction of the arm lever 11.
The transmission structure 2 comprises a transmission shaft 21, a first coupler 22 and a second coupler 23, the transmission shaft 21 is in transmission connection with the head of the arm length adjustable arm structure 1, the torque and speed sensor 3 is installed between the first coupler 22 and the second coupler 23, the first coupler 22 is in transmission connection with the transmission shaft 21, and the second coupler 23 is in transmission connection with the transmission shaft of the brake 4 to be tested. The transmission shaft 21 is in transmission connection with the head of the arm length adjustable arm structure 1 through a first spline, the first coupler 22 is in transmission connection with the transmission shaft 21 through a second spline, and the second coupler 23 is in transmission connection with the transmission shaft of the brake 4 to be tested through a third spline. Two ends of the torque and rotation speed sensor 3 are respectively connected with the first coupler 22 and the second coupler 23 through elastic keys.
The testing principle of the testing device of the utility model is as follows:
when the test is started, the adjusting arm lever 11 is in a horizontal position, the controller 5 sends a control signal to the servo motor 15, so that the normal rotating speed of the servo motor 15 is reversed, and the nut 14 and the roller 16 return to the side close to the transmission shaft 21, as shown in fig. 1;
the weight 12 is additionally arranged, the controller 5 sends a control signal to the servo motor 15, so that the servo motor 15 rotates normally and rotates forwards, the nut 14 and the roller 16 start to be far away from the transmission shaft 21, and the driving moment of the test motor is gradually increased, as shown in fig. 2;
The controller 5 receives torque and rotation speed signals of the torque rotation speed sensor 3, and when the rotation speed is 0 and the torque signal Mmeasured reaches 90% of the designed static braking torque M of the test brake, the controller 5 continues to send control signals to enable the servo motor 15 to rotate forwards at a slow speed; when the rotating speed jumps from 0 to non-0, the controller 5 simultaneously records the torque signal value, namely the static braking torque of the test brake; and the controller 5 sends a control signal to stop the servo motor 15, so that the test of the static braking torque of the brake is completed.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. The utility model provides a testing arrangement of stopper static braking moment, its characterized in that, the device include arm length adjustable arm of force structure (1), drive structure (2), torque speed sensor (3) and controller (5), the one end of drive structure (2) with the head transmission of adjustable arm of force structure be connected, the other end of drive structure (2) be connected with the transmission shaft transmission of the stopper (4) of awaiting measuring, torque speed sensor (3) install on drive structure (2), arm length adjustable arm of force structure (1), drive structure (2) and torque speed sensor (3) all be connected to controller (5).
2. The device for testing the static braking torque of a brake as claimed in claim 1, wherein the arm length adjustable arm structure (1) comprises an arm rod (11), a weight (12) and a driving assembly, the transmission structure (2) is in transmission connection with the head of the arm rod (11), the weight (12) is movably connected with the arm rod (11) through the driving assembly, and the driving assembly drives the weight (12) to move along the length direction of the arm rod (11).
3. A device for testing the static braking torque of a brake according to claim 2, characterised in that said arm (11) is of hollow construction, said drive unit being mounted in said hollow construction.
4. A device for testing the static braking torque of a brake according to claim 2, wherein said driving assembly comprises a linear motion module and a roller (16), said linear motion module is mounted on a lever (11), said roller (16) is rotatably mounted on a motion block of said linear motion module, rolling grooves for rolling said roller (16) are formed on the upper and lower edges of said lever (11), said roller (16) is engaged in said rolling grooves, said weight (12) is suspended on said roller (16), and said linear motion module is connected to said controller (5).
5. A test device for static braking torque of a brake according to claim 4, wherein said linear motion module comprises a screw type linear module.
6. A device for testing the static braking torque of a brake according to claim 4, wherein two groups of rollers (16) are arranged and are symmetrically distributed on two sides of the arm lever (11) along the thickness direction of the arm lever (11).
7. The device for testing the static braking torque of the brake as claimed in claim 1, wherein the transmission structure (2) comprises a transmission shaft (21), a first coupling (22) and a second coupling (23), the transmission shaft (21) is in transmission connection with the head of the arm length adjustable arm structure (1), the torque and speed sensor (3) is installed between the first coupling (22) and the second coupling (23), the first coupling (22) is in transmission connection with the transmission shaft (21), and the second coupling (23) is in transmission connection with the transmission shaft of the brake to be tested (4).
8. The device for testing the static braking torque of the brake as claimed in claim 7, wherein the transmission shaft (21) is in transmission connection with the head of the arm length adjustable arm structure (1) through a first spline, the first coupling (22) is in transmission connection with the transmission shaft (21) through a second spline, and the second coupling (23) is in transmission connection with the transmission shaft of the brake (4) to be tested through a third spline.
9. A test device for the static braking torque of a brake according to claim 7, characterized in that both ends of the torque and speed sensor (3) are respectively connected with the first coupling (22) and the second coupling (23) through elastic keys.
10. A device for testing the static braking torque of a brake according to claim 1, characterised in that said controller (5) comprises a microprocessor with digital processing functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121753893.9U CN216978220U (en) | 2021-07-29 | 2021-07-29 | Testing arrangement of stopper static braking moment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121753893.9U CN216978220U (en) | 2021-07-29 | 2021-07-29 | Testing arrangement of stopper static braking moment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216978220U true CN216978220U (en) | 2022-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121753893.9U Active CN216978220U (en) | 2021-07-29 | 2021-07-29 | Testing arrangement of stopper static braking moment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216978220U (en) |
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2021
- 2021-07-29 CN CN202121753893.9U patent/CN216978220U/en active Active
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