CN216116482U

CN216116482U - Braking torque detection device

Info

Publication number: CN216116482U
Application number: CN202122301038.0U
Authority: CN
Inventors: 尹飞虎; 倪世杰; 胡翔; 李海明; 陈肖琪; 王晨; 陈涛; 王天才
Original assignee: Zhejiang Haizhong Heavy Industry Co ltd; Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd
Current assignee: Zhejiang Haizhong Heavy Industry Co ltd; Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-22
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a braking moment detection device which comprises a clamp used for being connected with a brake disc coupler, a jacking mechanism used for vertically jacking one end, far away from the brake disc coupler, of the clamp, and a force sensor arranged between the jacking mechanism and the clamp. The braking torque detection device provided by the utility model can conveniently and quickly detect the braking torque applied to the brake disc by the brake, and is safe and reliable.

Description

Braking torque detection device

Technical Field

The utility model relates to the field of torque detection, in particular to a braking torque detection device.

Background

The brake is a particularly important safety protection component on the crane, and the actual braking torque of the brake is directly related to the hoisting safety of the crane. However, in view of the fact that the actual performance conditions of each crane brake are different, it is difficult to determine whether the braking torque output by the brake can ensure the hoisting safety when the crane is fully loaded or hoisted in large tonnage. The mode that adopts load test to verify at present in the trade, the hoist hoists the balancing weight that is fully loaded with similar weight alone promptly verifies the reliability of stopper. A large number of balancing weights need to be prepared in the earlier stage in a load test, relevant hoisting machinery and construction personnel are coordinated and called, time and labor are wasted, cost is wasted, and certain potential safety hazards exist. Therefore, it is urgently needed to develop a set of device for conveniently and quickly detecting the braking torque value applied to a brake disc or a brake wheel by a brake.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a braking torque detection device which can conveniently and quickly detect the braking torque applied to a brake disc by a brake and is safe and reliable.

In order to achieve the purpose, the utility model provides a braking torque detection device which comprises a clamp used for being connected with a brake disc coupling, a jacking mechanism used for vertically jacking one end, far away from the brake disc coupling, of the clamp, and a force sensor arranged between the jacking mechanism and the clamp.

Optionally, the fixture comprises a U-shaped or semicircular fixture body and a rod part connected with the fixture body, and the fixture body is provided with a fixing hole matched with the brake disc coupler.

Optionally, the clamp further includes an extension section, the rod portion is parallel to the plane where the clamp body is located, and the extension section is perpendicularly connected to the rod portion and the clamp body.

Optionally, the pressing mechanism is a hydraulic oil cylinder.

Optionally, a top pressing block is arranged at the top end of the top pressing mechanism, a top pressing groove is formed in the top pressing block, and the force sensor is arranged at the bottom of the top pressing groove.

Optionally, the two side walls of the jacking groove and the rod part are provided with limiting holes, and the jacking groove further comprises a limiting shaft penetrating through the limiting holes.

Optionally, the brake system further comprises a controller connected with the force sensor, wherein the controller is provided with an operation module used for calculating the moment according to the pressure value of the force sensor and the equivalent moment arm of the clamp and the brake disc coupler, and a display module used for outputting the operation result of the operation module.

Optionally, the controller is provided with a control module connected with the jacking mechanism to control the jacking mechanism to adjust the set pressure.

Compared with the background technology, the utility model aims at the problems that a counterweight block load test is time-consuming and labor-consuming and damages the hoisting machinery, a brake torque detection device which is convenient, quick and nondestructive to the hoisting machinery is introduced, a clamp is connected with a brake disc coupling, one end of a clamp body, far away from the brake disc coupling, is jacked by a jacking mechanism, a force sensor can detect the force F applied to the clamp by the jacking mechanism, the distance L from the tail end of the clamp to the axis of the brake disc coupling is equivalent to the force arm of the jacking mechanism and is a known quantity, and the brake torque can be quickly calculated by only obtaining the measured value of the force sensor according to the M ═ F × L. In the process of testing the braking torque, only the constant pressure of the jacking mechanism is changed, a large number of balancing weights are not needed to be arranged, the operation is convenient and fast, and safety accidents caused by falling of the balancing weights when overload occurs are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of the brake torque detection apparatus provided in the present invention;

FIG. 2 is a schematic view of a portion of FIG. 1 in the direction A;

FIG. 3 is a schematic view of a portion of FIG. 1 taken in the direction B;

fig. 4 is a schematic view of a clamp according to another embodiment.

Wherein:

01-brake disc, 02-brake disc coupling;

1-a jacking mechanism, 2-a jacking block, 3-a force sensor and 4-a clamp;

41-rod part, 42-extension section and 43-clamp body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, fig. 1 is a schematic diagram illustrating an operation of a braking torque detection device according to an embodiment of the present invention, fig. 2 is a partial schematic diagram of a direction a of fig. 1, fig. 3 is a partial schematic diagram of a direction B of fig. 1, and fig. 4 is a schematic diagram of a clamp according to another embodiment.

The braking torque detection device provided by the utility model comprises a jacking mechanism 1, a clamp 4 and a force sensor 3, wherein one end of the clamp 4 is fixedly connected with a brake disc coupling 02 of a brake disc 01, and the other end of the clamp extends horizontally to allow the jacking mechanism 1 to vertically jack. The force arm of the jacking mechanism 1 for applying force to the brake disc coupling 02 is confirmed according to the specifications of the clamp 4 and the brake disc coupling 02 of the brake to be detected, and the force sensor 3 acquires the acting force between the jacking mechanism 1 and the clamp 4 so as to calculate the braking torque according to the condition that M is F multiplied by L. When braking torque is detected, only the jacking pressure of the jacking mechanism 1 needs to be adjusted, a large number of balancing weights are not needed, convenience and rapidness are achieved, safety accidents such as falling of the balancing weights cannot be caused even if overload braking fails, and safety of a detection process is improved.

In an embodiment of the present invention, as shown in fig. 1 to 3, the clamp 4 includes a clamp body 43 for connecting the brake disc coupling 02 and a rod 41 connecting the clamp body 43, an end of the rod 41 away from the clamp body 43 is pressed by the pressing mechanism 1, and the clamp body 43 and the rod 41 are integrally formed. The clamp body 43 can adopt a U-shaped structure, and a fixing hole matched with the brake disc coupling 02 is formed in the U-shaped structure, so that the clamp body 43 is fixed relative to the brake disc coupling 02 through bolts and the fixing hole. The clamp body 43 can be designed into a semicircular structure, which is also provided with a fixing hole matched and fixed with the brake disc coupling 02. For the brake disc couplings 02 of different models, the clamps 4 of different specifications/sizes are designed.

Preferably, the clamp 4 provided herein further includes an extension 42, the extension 42 being connected between the clamp body 43 and the stem 41, as best seen in fig. 4. The plane where the rod part 41 and the clamp body 43 are located is arranged in parallel, the plane where the rod part 41 is located extends outwards relative to the brake disc coupling 02 by means of the arrangement of the extension section 42, interference between the rod part 41 and the brake disc coupling 02 is avoided, and the extension section 42 is preferably arranged perpendicular to the rod part 41 and the clamp body 43; the two can also be obliquely arranged at a certain angle according to requirements, and the plane where the rod part 41 is located and the plane where the clamp body 43 is located can only be staggered.

In the above embodiment, the jacking mechanism 1 specifically adopts a hydraulic oil cylinder, the hydraulic driving force of the hydraulic oil cylinder acts on the rod part 41, a torque is generated at the brake disc coupling 02, a gravity torque generated by the counterweight block at the brake disc coupling 02 when the counterweight block is loaded by the simulation crane, and when the torque is greater than the braking torque, the brake disc 01 rotates; when the torque generated by the cooperation of the hydraulic oil cylinder and the clamp 4 is larger than the gravity torque generated when the hoisting machinery is in the maximum load and the brake disc 01 does not rotate, the brake is indicated to meet the braking requirement.

In order to obtain the torque, a force sensor 3 is arranged between the top of the hydraulic oil cylinder and the rod part 41, the force sensor 3 is used for detecting the acting force applied to the clamp 4 by the hydraulic oil cylinder, and the torque generated by the jacking mechanism 1 and the clamp 4 at the brake disc coupling 02 can be obtained by calculating the equivalent arm of force of the acting force and the force. The length of the equivalent force arm is equal to the distance between the acting point of the hydraulic oil cylinder and the rod part 41 and the axle center of the brake disc coupling 02.

Preferably, in order to improve the detection precision of the force sensor 3, the top end of the hydraulic oil cylinder is fixedly connected with the jacking block 2, the jacking block 2 is provided with a jacking groove, the rod part 41 is arranged in the jacking groove, and the force sensor 3 is arranged at the bottom of the jacking groove.

Furthermore, two side walls of the jacking groove and the rod part 41 are provided with penetrating limiting holes, and the rod part 41 and the jacking block 2 penetrate through the limiting holes through limiting shafts to realize limiting along the length direction of the rod part 41. It should be noted that the size of the limiting hole is larger than the diameter of the limiting shaft or the limiting hole is a vertically arranged oblong hole, so that when the hydraulic cylinder presses the rod part 41, the bottom surface of the rod part 41 can fully act on the force sensor 3 pressing against the bottom of the groove, and the limiting shaft and the limiting hole only play a role in limiting along the length direction of the rod part 41 and do not bear the acting force in the length direction of the vertical rod part 41, so as to avoid affecting the detection accuracy of the force sensor 3.

In order to optimize the above embodiment and to conveniently and intuitively acquire the numerical value of the torque, the braking torque detection device provided by the application further comprises a controller, and the controller is respectively connected with the hydraulic oil cylinder and the force sensor 3. The controller is provided with an operation module and a display module, the operation module can calculate the torque applied to the brake disc coupling 02 according to the pre-stored type of the clamp 4, the equivalent force arm corresponding to the brake disc coupling 02 and the acting force detected by the force sensor 3, and the calculation result is displayed in real time through the display module. In addition, the controller is further provided with a control module connected with the hydraulic oil cylinder, the hydraulic oil cylinder can be controlled by the control module to slowly pressurize by inputting the target torque, and the pressurization is stopped after the target torque is reached.

The braking torque detection device that this application provided can design for independent specialized tool, is applicable to most driving, can insert the driving fast during the use. The device is convenient to transport and carry; the device is safe and reliable, and is simple and convenient to use. The braking torque required by the brake when the hoisting machinery is rated in load can be automatically calculated according to the input specific parameters; the device is able to verify the value of the braking torque of the brake applied in real time to the brake disc 01 or to the braking wheel.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The brake torque detection device provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The braking moment detection device is characterized by comprising a clamp used for being connected with a brake disc coupler, a jacking mechanism used for vertically jacking one end, far away from the brake disc coupler, of the clamp and a force sensor arranged between the jacking mechanism and the clamp.

2. The braking torque detection device according to claim 1, wherein the clamp includes a U-shaped or semi-circular clamp body and a rod portion connected to the clamp body, and the clamp body is provided with a fixing hole matched with the brake disc coupling.

3. The brake torque detection device according to claim 2, wherein the clip further includes an extension section, the rod portion is parallel to a plane in which the clip body is located, and the extension section perpendicularly connects the rod portion and the clip body.

4. The brake torque detection device according to claim 3, wherein the pressing mechanism is a hydraulic cylinder.

5. The braking torque detection device according to claim 4, wherein a top pressing block is provided at a top end of the pressing mechanism, the top pressing block is provided with a pressing groove, and the force sensor is provided at a groove bottom of the pressing groove.

6. The braking torque detection device according to claim 5, wherein both side walls of the abutting groove and the rod portion are provided with a limiting hole, and the braking torque detection device further comprises a limiting shaft penetrating through the limiting hole.

7. The braking torque detection device according to any one of claims 1 to 6, further comprising a controller connected to the force sensor, wherein the controller is provided with an operation module for calculating torque according to a pressure value of the force sensor and an equivalent moment arm of the clamp and the brake disc coupling, and a display module for outputting an operation result of the operation module.

8. The brake torque detection device according to claim 7, wherein the controller is provided with a control module connected with the pressing mechanism to control the pressing mechanism to adjust the constant pressure.