Distance limiting type torque protection coupling

Abstract

The utility model relates to the technical field of coupler protection, in particular to a distance limiting type torque protection coupler which comprises a torque limiting protection mechanism and a back frame, connecting bolts are arranged at the upper end and the lower end of the front face of the torque limiting protection mechanism, and first screw holes are formed in the upper end and the lower end of the interior of the torque limiting protection mechanism and the back frame. A driving end is arranged at one end of the torque limiting protection mechanism, a driven end is arranged at one end of the back frame, and second screw holes are formed in the upper end and the lower end of the interior of the driven end. By means of the torque limiting protection mechanism, the back frame, the connecting bolt, the first screw hole, the driving end, the connecting disc, the contraction rubber ring and the steel washer, the driving connection operation of equipment can be safer and more stable. A worker firstly connects the torque limiting protection mechanism and the back frame which need to be used to the front end and the rear end of the driving end in a butt joint mode through a connecting bolt and a first screw hole, and at the moment, when the driving end is connected with the driven end, the driving end is connected with the driven end.

Description

Technical Field

[0001] The utility model relates to the technical field of coupling protection, in particular to a distance-limited torque protection coupling. Background Art

[0002] The coupling is an important component of the mechanical transmission system and is often used to connect two shafts or a shaft and a rotating part to transmit torque and motion. Simply put, a coupling is a mechanical part used to connect two shafts in different structures so that they rotate together to transmit torque, and the torque-limiting torque protection coupling can be used in high-speed operation and relatively large transmission drive devices, such as port terminal slewing mechanisms, thermal power plant bucket wheel excavator slewing mechanisms, etc.

[0003] Couplings can generally be divided into two categories: rigid couplings and flexible couplings. However, since rigid couplings have extremely high requirements for the coaxiality of the two axes, flexible couplings are more widely used. Rigid couplings are composed of rigid components and are suitable for occasions where the allowable relative displacement of the two axes is very small. This type of coupling has a simple structure, small size and low cost. However, due to the limitations of its own structural properties, existing couplings are often unable to perform emergency friction protection operations when torque transmission is overloaded, and are not suitable for high-speed, large transmission ratio drive equipment. It is very easy to cause damage to the drive device and the output device, and cannot meet daily use needs. Therefore, it is urgent to design a limited-distance torque protection coupling to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a limited-distance torque protection coupling to solve the problem mentioned in the above background technology that the existing couplings are often unable to perform emergency friction protection operations when the torque transmission is overloaded due to the limitations of their own structural properties, and are not suitable for high-speed and large transmission ratio drive equipment. It is very easy to cause damage to the drive device and the output device and cannot meet the daily use needs.

[0005] To achieve the above object, the utility model provides the following technical solutions: a distance-limited torque protection coupling, comprising a torque-limiting protection mechanism, a back frame is provided on the back of the torque-limiting protection mechanism, connecting bolts are provided at the upper and lower ends of the front of the torque-limiting protection mechanism, and first screw holes are provided at the upper and lower ends of the torque-limiting protection mechanism and the back frame;

[0006] A driving end and a driven end, one end of the torque limiting protection mechanism is provided with a driving end, one end of the back frame is provided with a driven end, and second screw holes are provided at the upper and lower ends of the driven end.

[0007] Preferably, a first socket is fixedly connected to one side of the second screw hole at the top end, and a first docking seat is provided on one side of the driven end head at the bottom end.

[0008] Preferably, a positioning thread is provided on the side surface of the driving end head, and a connecting disk is provided at one end of the driving end head.

[0009] Preferably, four corners of one end of the torque limiting protection mechanism are fixedly connected with overhead blocks, and one end of the overhead block is fixedly connected with a limiting collar.

[0010] Preferably, a shrink rubber ring is provided at one end of the torque limiting protection mechanism and the back frame close to each other, and a steel washer is provided at one end of the shrink rubber ring.

[0011] Preferably, a second docking seat is provided at the top end of the back frame, and a second socket is fixedly connected to the bottom end of the back frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The distance-limited torque protection coupling, through the torque-limiting protection mechanism, back frame, connecting bolt, first screw hole, driving end head, connecting plate, shrinking rubber ring and steel washer, can make the equipment perform a safer and more stable driving connection operation. In the actual use process, the staff first connects the torque-limiting protection mechanism and back frame to be used to the front and rear ends of the driving end head through the connecting bolt and the first screw hole. At this time, when the driving end head is connected to the driven end head, the connecting plate at one end thereof can be stably connected to the two sets of shrinking rubber rings and steel washers between the torque-limiting protection mechanism and the back frame. When the torque reaches a certain value, the two sets of shrinking rubber rings and steel washers perform force-releasing friction operations on the connecting disk, so that the driving end and the driven end of the coupling slide relative to each other, avoiding torque transmission overload and damage to the driving device and the output device. After the use of this limited-distance torque protection coupling, the damage problem caused by jamming at the output end of the driving device will be completely solved. The cost of mechanical protection mechanism is lower than that of electrical protection mechanism, and the effect of overload protection is obvious. At the same time, it reduces the labor intensity of maintenance personnel, improves the reliability of equipment, and reflects the practicality of equipment design.

[0014] The distance-limited torque protection coupling further improves the overall use effect of the equipment by means of the torque-limiting protection mechanism, back frame, driving end, driven end, second screw hole, first socket, positioning thread, overhead block, limiting collar, second docking seat and second socket. In daily use, the staff can install the torque-limiting protection mechanism on the driving end through the overhead block and the limiting collar, and perform stable installation and fixing operations at the positioning thread provided on the driving end. At the same time, when the driven end is connected to the back of the back frame, stable docking operations can be performed through the first socket on the front and the first docking seat and the second docking seat and the second socket of the remaining back frame. The connection is more firm and stable. After use, the damage frequency of the equipment is effectively reduced. At the same time, the equipment can be quickly disassembled, assembled and maintained, which reduces the labor intensity of employees, reduces a large amount of equipment procurement costs and labor costs, and also reduces the occurrence of equipment defects and the maintenance and overhaul workload of the team, reflecting the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0016] Figure 2 It is an overall schematic diagram of the drive end structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the moment limiting protection mechanism and the back frame structure of the utility model;

[0018] Figure 4 It is an overall schematic diagram of the driven end structure of the utility model.

[0019] In the figure: 1. torque limiting protection mechanism; 2. back frame; 3. connecting bolt; 4. first screw hole; 5. driving end; 6. driven end; 7. second screw hole; 8. first socket; 9. first docking seat; 10. positioning thread; 11. connecting plate; 12. overhead block; 13. limiting ring; 14. shrink rubber ring; 15. steel washer; 16. second docking seat; 17. second socket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A distance-limited torque protection coupling comprises a torque-limiting protection mechanism 1, a back frame 2 is arranged on the back of the torque-limiting protection mechanism 1, connecting bolts 3 are arranged on the upper and lower ends of the front of the torque-limiting protection mechanism 1, first screw holes 4 are provided on the upper and lower ends of the inner parts of the torque-limiting protection mechanism 1 and the back frame 2, four corners of one end of the torque-limiting protection mechanism 1 are fixedly connected with overhead blocks 12, one end of the overhead block 12 is fixedly connected with a limiting collar 13, a shrinking rubber ring 14 is arranged at one end of the torque-limiting protection mechanism 1 and the back frame 2 close to each other, a steel washer 15 is arranged at one end of the shrinking rubber ring 14, a second docking seat 16 is arranged on the top of the back frame 2, and a second socket 17 is fixedly connected to the bottom end of the back frame 2, the torque-limiting protection mechanism 1 is stably installed on the driving end head 5 through the overhead block 12 and the limiting collar 13, and the positioning thread 10 opened on the driving end head 5 is used for stable installation and fixing operations.

[0023] A driving end head 5 and a driven end head 6, a driving end head 5 is provided at one end of the torque limiting protection mechanism 1, a driven end head 6 is provided at one end of the back frame 2, second screw holes 7 are provided at the upper and lower ends of the driven end head 6, one side of the top second screw hole 7 is fixedly connected with a first socket 8, a first docking seat 9 is provided on one side of the bottom driven end head 6, a positioning thread 10 is provided on the side of the driving end head 5, a connecting disk 11 is provided at one end of the driving end head 5, when the driving end head 5 is connected to the driven end head 6, the connecting disk 11 at one end thereof can be stably docked between the two groups of shrinking rubber rings 14 and steel washers 15 between the torque limiting protection mechanism 1 and the back frame 2, and when the torque reaches a certain value, the two groups of shrinking rubber rings 14 and steel washers 15 perform force unloading friction operation on the connecting disk 11.

[0024] Working principle: When in use, the user first connects the torque limiting protection mechanism 1 and the back frame 2 to the front and rear ends of the driving end 5 through the connecting bolt 3 and the first screw hole 4. At this time, when the driving end 5 is connected to the driven end 6, the connecting disk 11 at one end can be stably connected to the two sets of shrinking rubber rings 14 and steel washers 15 between the torque limiting protection mechanism 1 and the back frame 2. When the torque reaches a certain value, the two sets of shrinking rubber rings 14 and steel washers 15 perform force unloading friction operation on the connecting disk 11, so that the driving end 5 and the driven end 6 of the coupling slide relative to each other, avoiding torque transmission overload and damage to the driving device and the output device. After the use of this limited-distance torque protection coupling, the problem of damage to the driving device caused by jamming at the output end will be completely solved. The mechanical protection mechanism is lower in cost than the electrical protection mechanism, and the effect of achieving overload protection is obvious. , and at the same time reduce the labor intensity of maintenance personnel and improve the reliability of equipment. In daily use, the staff can stably install the torque limit protection mechanism 1 on the driving end head 5 through the overhead block 12 and the limiting collar 13, and perform stable installation and fixing operations at the positioning thread 10 provided on the driving end head 5. At the same time, when the driven end head 6 is connected to the back of the back frame 2, a stable docking operation can be performed through the first socket 8 and the first docking seat 9 on the front and the second docking seat 16 and the second socket 17 of the remaining back frame 2. The connection is more firm and stable. After use, it effectively reduces the damage frequency of the equipment. At the same time, the equipment can be quickly disassembled and maintained, which reduces the labor intensity of employees, reduces a large amount of equipment procurement costs and labor costs, and also reduces the occurrence of equipment defects and the maintenance and overhaul workload of the team. The above is the entire working principle of the utility model.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A torque-limiting coupling, comprising a torque-limiting protection mechanism (1), characterized in that: The back of the torque limiting protection mechanism (1) is provided with a back frame (2), the front of the torque limiting protection mechanism (1) is provided with connecting bolts (3) at the upper and lower ends, and the inner upper and lower ends of the torque limiting protection mechanism (1) and the back frame (2) are provided with first screw holes (4); A driving end (5) and a driven end (6), wherein one end of the torque limiting protection mechanism (1) is provided with the driving end (5), one end of the back frame (2) is provided with the driven end (6), and the driven end (6) is provided with second screw holes (7) at the upper and lower ends thereof.

2. A distance-limited torque protection coupling according to claim 1, characterized in that: A first socket (8) is fixedly connected to one side of the second screw hole (7) at the top end, and a first docking seat (9) is provided on one side of the driven end head (6) at the bottom end.

3. The distance-limited torque protection coupling according to claim 1, characterized in that: A positioning thread (10) is provided on the side of the driving end head (5), and a connecting plate (11) is provided at one end of the driving end head (5).

4. The distance-limited torque protection coupling according to claim 1 is characterized in that: An overhead block (12) is fixedly connected to the four corners of one end of the torque limiting protection mechanism (1), and one end of the overhead block (12) is fixedly connected to a limiting collar (13).

5. The distance-limited torque protection coupling according to claim 1, characterized in that: A shrinking rubber ring (14) is provided at one end of the torque limiting protection mechanism (1) and the back frame (2) close to each other, and a steel washer (15) is provided at one end of the shrinking rubber ring (14).

6. The distance-limited torque protection coupling according to claim 1, characterized in that: The top end of the back frame (2) is provided with a second docking seat (16), and the bottom end of the back frame (2) is fixedly connected with a second socket (17).

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