Pin coupling with brake mechanism

By introducing a two-way braking mechanism of hydraulic rod and nut into the pin coupling, as well as a quick connection method of pin and reinforcing screw, the problem of one-way braking of existing pin couplings is solved, realizing two-way braking and quick connection, thus improving practicality and safety.

CN223725219UActive Publication Date: 2025-12-26NANJING WISDOM TRANSMISSION MASCH CO LTD
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Patent Information

Application Number
CN202520664416.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2025-12-26
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

Existing pin couplings, after installation, can only rotate the drive shaft on one side in one direction, which reduces their practicality and applicability. In addition, they are prone to loosening after long-term use, resulting in reduced safety and service life.

Method used

A pin coupling with a braking mechanism was designed. Through the cooperation of hydraulic rod and nut, bidirectional braking is achieved. Combined with the quick connection method of pin and reinforcing screw, the stability and safety of the device are enhanced.

Benefits of technology

It achieves bidirectional braking function, improves practicality and applicability, extends service life, and enhances safety and work efficiency through quick connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of couplings, and discloses a pin coupling with a brake mechanism, which comprises a first connecting shaft, the bottom end of the first connecting shaft is fixedly connected with a first connecting disc, the bottom of the first connecting disc is provided with a second connecting disc, and the inner wall of the second connecting disc is slidably connected with a second connecting shaft. A second limiting disc is fixedly connected to the top end of the second connecting shaft, a fixing disc is arranged on the outer wall of the second connecting shaft, a plurality of hydraulic rods are fixedly connected to the top of the fixing disc, transmission grooves are formed in the inner wall of the second connecting disc and the inner wall of the first connecting disc, and sliding rods are slidably connected to the inner walls of the transmission grooves. The upper middle side of the outer wall of the sliding rod is in threaded connection with a first nut. According to the brake device, the first connecting shaft is rotated to drive the first connecting disc to rotate, then the second connecting disc is driven through the sliding rod and the buffer block, the second nut is matched for buffering, the purpose of braking by disconnecting transmission is achieved, practicability is improved, and the application range is widened.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a shaft coupling technical field especially, it relates to a kind of pin coupling with brake mechanism. BACKGROUND

[0002] Pin coupling is a kind of mechanical transmission component, mainly used to connect two shafts, so that they can rotate together and transmit torque, according to structural features, it can be divided into rigid pin coupling for transmitting torque, without and only small compensation capacity, and elastic pin coupling, which has displacement compensation and shock absorption function in addition to transmitting torque, its main structural components are two half-couplings, pin for fixing two half-couplings together, and elastic element for increasing compensation capacity and shock absorption performance.

[0003] Pin coupling has the characteristics of effectively transmitting torque, synchronously rotating two shafts, compensating axial, radial and angular displacement between shafts, and absorbing vibration and impact, among which compensating axial, radial and angular displacement between shafts is very useful for shaft alignment problems caused by manufacturing errors, temperature changes and installation errors, and since its simple structure, installation is usually relatively simple, only need to insert pin into the hole of two half-couplings, then tighten and fix, while the existing pin coupling can only stop the rotation of one side of transmission shaft after installation, and can only be braked, resulting in reduced practicability and applicability, and when connected with transmission shaft, threaded and plug-in installation methods are often used, which are prone to looseness after long-term use, resulting in reduced safety and service life. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a kind of pin coupling with brake mechanism, to improve the problem that the existing pin coupling in prior art can only stop the rotation of one side of transmission shaft after installation, and can only be braked, resulting in reduced practicability and applicability.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of pin coupling with brake mechanism, including connecting shaft one, the bottom end of connecting shaft one is fixedly connected with connecting disc one, the bottom of connecting disc one is provided with connecting disc two, the inner wall of connecting disc two is slidably connected with connecting shaft two, the top of connecting shaft two is fixedly connected with limit disc two, the outer wall of connecting shaft two is provided with fixed disc, the top of fixed disc is fixedly connected with a plurality of hydraulic rods, the inner wall of connecting disc two and connecting disc one is all provided with transmission groove, the inner wall of transmission groove is slidably connected with sliding rod, the outer wall of sliding rod is screw-threaded with nut one in upper side, the outer wall of sliding rod is screw-threaded with nut two in middle part, the outer wall bottom end of sliding rod is fixedly connected with limit disc one, the middle part of the bottom of connecting disc one is provided with recess, the far away one end of connecting shaft one and connecting shaft two is fixedly connected with connecting structure, and the connecting structure is used for quick connection.

[0006] As further description of the above technical solution:

[0007] The connecting structure includes mounting disc one, the bottom of mounting disc one is fixedly connected with the far away one end of connecting shaft one and connecting shaft two, the far away one side of two mounting disc one is provided with mounting disc two, the inner wall of mounting disc two is fixedly connected with transmission shaft, the inner wall of mounting disc two and mounting disc one is all provided with clamping groove near edge, the inner wall of clamping groove is slidably connected with bolt, the inner wall of bolt is all provided with sliding groove in upper side and lower side, the inner wall of sliding groove is slidably connected with a plurality of sliding blocks, the adjacent one side of sliding block is fixedly connected with spring one, and the inner wall of sliding block is screw-threaded with a plurality of reinforcing screws.

[0008] As further description of the above technical solution:

[0009] The outer wall of reinforcing screw is provided with gasket one, and the inner wall of gasket one is slidably connected with the outer wall of reinforcing screw.

[0010] As further description of the above technical solution:

[0011] The bottom of sliding block is fixedly connected with rubber pad one, and the outer wall of rubber pad one is attached with the outer wall of mounting disc two and mounting disc one.

[0012] As further description of the above technical solution:

[0013] The inner wall of connecting disc one and connecting disc two is all provided with a plurality of ventilation grooves two, and the inner wall of ventilation groove two is provided with ventilation groove one.

[0014] As further description of the above technical solution:

[0015] The top of limit disc one is fixedly connected with rubber pad two, and the bottom of limit disc two is fixedly connected with buffer pad.

[0016] As a further description of the above technical solutions:

[0017] The outer wall of the sliding rod is provided with a spring two on the lower side, and the adjacent side of the nut one and the nut two is provided with a gasket two.

[0018] As a further description of the above technical solutions:

[0019] The upper and lower ends of the sliding rod are fixedly connected with buffer blocks, and the plurality of buffer blocks are slidingly connected to the same horizontal height.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, the connecting disc one is driven to rotate by rotating the connecting shaft one, and then the connecting disc two and the fixed disc one connected thereto are driven to rotate by the sliding rod and the buffer block, and then the connecting disc two is driven to rotate by the top of the connecting disc two and the bottom of the limiting disc two, and the hydraulic rod is started to drive the connecting disc two to move upward, so as to separate the connection and cooperate with the nut two to buffer, so as to achieve the purpose of braking by disconnecting the transmission, improve the practicability, and expand the application range.

[0022] 2. In the utility model, the plug is inserted into the mounting disc two and the mounting disc one, and the clamping groove in the inner wall, after releasing the hand, the spring one pushes the sliding blocks on both sides outward, so that the mounting disc two and the mounting disc one can be limited, and finally the reinforcing screw is screwed in the inner wall to be fixed, so as to achieve the purpose of quick connection and multiple fixation, prolong the service life, and improve the safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A front side perspective view of the pin coupling with the brake mechanism is provided for the utility model;

[0024] Figure 2 A partial structure schematic view of the pin coupling with the brake mechanism is provided for the utility model;

[0025] Figure 3 A limiting disc one partial structure display view of the pin coupling with the brake mechanism is provided for the utility model;

[0026] Figure 4 A transmission shaft partial structure exploded view of the pin coupling with the brake mechanism is provided for the utility model;

[0027] Figure 5 A plug partial structure exploded view of the pin coupling with the brake mechanism is provided for the utility model;

[0028] Figure 6 A reinforcing screw local structure diagram of a pin coupling with a brake mechanism is provided.

[0029] Legend:

[0030] 1, connecting shaft one; 2, connecting structure; 201, mounting disc one; 202, mounting disc two; 203, transmission shaft; 204, clamping groove; 205, sliding block; 206, spring one; 207, bolt; 208, sliding slot; 209, reinforcing screw; 3, connecting disc one; 4, connecting disc two; 5, fixed disc; 6, connecting shaft two; 7, sliding rod; 8, buffer block; 9, limiting disc one; 10, nut one; 11, spring two; 12, nut two; 13, groove; 14, transmission groove; 15, limiting disc two; 16, hydraulic rod; 17, rubber pad one; 18, gasket one; 19, ventilation groove one; 20, ventilation groove two; 21, gasket two; 22, rubber pad two; 23, buffer pad. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] Please refer to the drawings Figure 1 - the drawings Figure 3The utility model provides an embodiment: a kind of pin coupling with brake mechanism, including connecting shaft one 1, the bottom end of connecting shaft one 1 is fixedly connected with connecting disc one 3, connecting shaft one 1 is used to pass on to connecting disc one 3, the bottom of connecting disc one 3 is provided with connecting disc two 4, the inner wall of connecting disc two 4 is slidably connected with connecting shaft two 6, the top end of connecting shaft two 6 is fixedly connected with limit disc two 15, connecting shaft two 6 is used to pass on the rotation of connecting disc two 4, the outer wall of connecting shaft two 6 is provided with fixed disc 5, the top of fixed disc 5 is fixedly connected with multiple hydraulic rods 16, hydraulic rod 16 is used to push the sliding of connecting disc two 4, the inner wall of connecting disc two 4 and connecting disc one 3 is all set with transmission groove 14, the inner wall of transmission groove 14 is slidably connected with sliding rod 7, transmission groove 14 is used to and sliding rod 7 slide, to pass on its rotation, the outer wall of sliding rod 7 is screw-threaded with nut one 10 in upper side, the outer wall of sliding rod 7 is screw-threaded with nut two 12 in middle, nut one 10 and nut two 12 are all used to limit sliding rod 7, the outer wall bottom end of sliding rod 7 is fixedly connected with limit disc one 9, the bottom surface middle part of connecting disc one 3 is set with recess 13, the far apart one end of connecting shaft one 1 and connecting shaft two 6 is fixedly connected with connecting structure 2, connecting structure 2 is used to quickly connect, recess 13 is used to make connecting shaft two 6 can, in its inner contactless rotation;

[0033] Specifically, the connecting structure 2 can quickly and conveniently connect and disassemble the pin coupling with other mechanical equipment, greatly improving the work efficiency, the limit disc two 15 prevents the sliding position of the connecting disc two 4 from being excessive, and the limit disc two 15 and the connecting disc two 4 can be connected by fitting, so that the rotation of the connecting disc two 4 is transmitted to the connecting shaft two 6, the nut one 10 and the nut two 12 can be rotated outside the sliding rod 7, so that the sliding rod 7 and the connecting disc one 3 are installed, and the rotation of the connecting disc one 3 is transmitted from the sliding rod 7 through the transmission groove 14.

[0034] Please refer to the attached Figure 2 - attached Figure 4The connecting structure 2 comprises a mounting disc one 201, the bottom of which is fixedly connected with the distal ends of the connecting shaft one 1 and the connecting shaft two 6, both sides of the mounting disc one 201 are provided with a mounting disc two 202, which is used for connecting with the mounting disc one 201, the inner wall of the mounting disc two 202 is fixedly connected with a transmission shaft 203, the inner wall of the mounting disc two 202 and the mounting disc one 201 near the edge is provided with a clamping groove 204, the transmission shaft 203 is used for transmitting the rotation of the mounting disc two 202, the inner wall of the clamping groove 204 is slidably connected with a bolt 207, the inner wall of the bolt 207 is provided with a sliding groove 208 on the upper side and the lower side, the bolt 207 is used for inserting into the clamping groove 204 to limit the mounting disc two 202 and the mounting disc one 201 from left to right, the inner wall of the sliding groove 208 is slidably connected with a plurality of sliding blocks 205, the adjacent side of the sliding block 205 is fixedly connected with a spring one 206, the inner wall of the sliding block 205 is threadedly connected with a plurality of reinforcing screws 209, the spring one 206 is used to push the sliding block 205 to pop out to the both sides;

[0035] Specifically, by tightening the reinforcing screw 209, the position of the sliding block 205 in the sliding groove 208 can be adjusted, so that it can better adapt to different working conditions and connection requirements. The spring one 206 provides outward elastic force for the sliding block 205. When the bolt 207 is inserted into the clamping groove 204, the sliding block 205 pops out outward under the action of the spring one 206 to limit the mounting disc two 202 and the mounting disc one 201 from top to bottom. In combination with the bolt 207 limiting the mounting disc two 202 and the mounting disc one 201 from left to right, the mounting process is completed.

[0036] Please refer to the accompanying drawings Figure 4 The accompanying drawings Figure 6 The outer wall of the reinforcing screw 209 is provided with a gasket one 18, the inner wall of the gasket one 18 is slidably connected with the outer wall of the reinforcing screw 209, the gasket one 18 is used to prevent the reinforcing screw 209 from loosening after long-term use, the upper end and the lower end of the sliding rod 7 are fixedly connected with a buffer block 8, the buffer block 8 is used to buffer the sliding rod 7, a plurality of buffer blocks 8 are slidably connected at the same horizontal height, the bottom of the sliding block 205 is fixedly connected with a rubber pad one 17, the outer wall of the rubber pad one 17 is in close contact with the outer wall of the mounting disc two 202 and the mounting disc one 201, and the rubber pad one 17 is used to avoid the sliding block 205 from causing wear to the objects in contact with it;

[0037] Specific, rubber pad 17 can further fill the small gap between the sliding block 205 and the contact structure, enhance the tightness and stability of the connection, while in the device running process, it can also play a certain damping and noise reduction effect, reduce the noise and vibration caused by the relative movement between the components, improve the working performance and service life of the whole structure, when the sliding rod 7 in the transmission process due to various external force displacement impact, buffer block 8 can effectively absorb and buffer these impact force, reduce the rigid collision between the sliding rod 7 and the inner wall of the transmission groove 14, reduce the noise and vibration in the process of equipment operation.

[0038] Please refer to the attached Figure 3 - attached Figure 5 , the top of the limiting disc 9 is fixedly connected with rubber pad two 22, the bottom of the limiting disc two 15 is fixedly connected with the buffer pad 23, the buffer pad 23 is used for buffering and can also increase the friction force of the surface, the inner wall of the connecting disc one 3 and the connecting disc two 4 is provided with a plurality of ventilation grooves two 20, the inner wall of the ventilation groove two 20 is provided with ventilation groove one 19, the ventilation groove two 20 is used for cooperating with the ventilation groove one 19 to cool the running device, the outer wall of the sliding rod 7 is provided with spring two 11, the adjacent side of the nut one 10 and the nut two 12 is provided with gasket two 21, the gasket two 21 is used to increase the friction force between the structures in contact with each other;

[0039] Specific, when the nut one 10 and the nut two 12 are tightened, the gasket two 21 can uniformly disperse the pressure of the nut on the sliding rod 7 and other related parts, avoid the deformation and damage of the parts caused by the excessive local pressure, the gasket two 21 can also prevent the nut from loosening due to vibration during the operation of the device to a certain extent, enhance the stability and reliability of the whole adjusting and fixing structure, the spring two 11 plays a role of reset and buffer in the whole mechanism, so that the sliding device on the outer wall of the sliding rod 7 can be buffered when resetting.

[0040] Working principle: when in static state, the sliding rod 7 and the connecting disc one 3 are fixed by the nut one 10 and the nut two 12, the buffer block 8 is engaged with the inner wall of the transmission groove 14, at this time, rotating the connecting shaft one 1 will drive the connecting disc one 3 to rotate, and then drive the fixed disc 5 through the sliding rod 7, when the rotation needs to be transmitted to the connecting shaft two 6, the hydraulic rod 16 is started to make the bottom of the fixed disc 5 and the limiting disc two 15 adhere to each other, at this time, with the movement of the fixed disc 5, the transmission groove 14 is disengaged from the engagement of the buffer block 8, so as to directly drive the fixed disc 5 to rotate through the sliding rod 7, and the buffer from idling to stop rotating;

[0041] When the device needs to be connected with the transmission shaft 203, first, the mounting disc two 202 and one end of the transmission shaft 203 are welded and fixed, then the mounting disc one 201 and one side of the mounting disc two 202 are pasted, then the bolt 207 is inserted into the clamping groove 204, after the hand is released, the spring one 206 pushes the sliding blocks 205 on both sides to pop out to both sides, so that the sliding blocks 205 and the outer walls of the mounting disc two 202 and the mounting disc one 201 are pasted, finally, the reinforcing screw 209 is screwed between the sliding blocks 205 and the mounting disc one 201, and the installation is completed.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A pin coupling with a braking mechanism, comprising a coupling shaft (1), characterized in that: The bottom end of the first connecting shaft (1) is fixedly connected to the first connecting disc (3), the bottom of the first connecting disc (3) is provided with the second connecting disc (4), the inner wall of the second connecting disc (4) is slidably connected to the second connecting shaft (6), the top end of the second connecting shaft (6) is fixedly connected to the second limiting disc (15), the outer wall of the second connecting shaft (6) is provided with the fixing disc (5), the top of the fixing disc (5) is fixedly connected to multiple hydraulic rods (16), and the inner walls of the second connecting disc (4) and the first connecting disc (3) are both provided with transmission grooves (14). A sliding rod (7) is slidably connected to the inner wall of the transmission groove (14). A nut (10) is threadedly connected to the upper side of the outer wall of the sliding rod (7). A nut (12) is threadedly connected to the middle part of the outer wall of the sliding rod (7). A limiting disk (9) is fixedly connected to the bottom end of the outer wall of the sliding rod (7). A groove (13) is provided in the middle of the bottom surface of the connecting disk (3). A connecting structure (2) is fixedly connected to the far end of the connecting shaft (1) and the connecting shaft (6). The connecting structure (2) is used for quick connection.

2. A pin coupling with a braking mechanism according to claim 1, characterized in that: The connection structure (2) includes a mounting plate 1 (201). The bottom of the mounting plate 1 (201) is fixedly connected to the opposite ends of the connecting shaft 1 (1) and the connecting shaft 2 (6). The opposite sides of the two mounting plates 1 (201) are each provided with a mounting plate 2 (202). The inner wall of the mounting plate 2 (202) is fixedly connected with a drive shaft (203). The inner walls of the mounting plate 2 (202) and the mounting plate 1 (201) are provided with a slot (204) near the edge. The inner wall of the slot (204) is slidably connected with a pin (207). The upper and lower sides of the inner wall of the pin (207) are provided with a sliding groove (208). The inner wall of the sliding groove (208) is slidably connected with a plurality of sliding blocks (205). The adjacent side of the sliding block (205) is fixedly connected with a spring 1 (206). The inner wall of the sliding block (205) is threadedly connected with a plurality of reinforcing screws (209).

3. A pin coupling with a braking mechanism according to claim 2, characterized in that: The outer wall of the reinforcing screw (209) is provided with a washer (18), and the inner wall of the washer (18) is slidably connected to the outer wall of the reinforcing screw (209).

4. A pin coupling with a braking mechanism according to claim 2, characterized in that: The bottom of the sliding block (205) is fixedly connected to a rubber pad (17), and the outer wall of the rubber pad (17) is in contact with the outer walls of the mounting plate (202) and the mounting plate (201).

5. A pin coupling with a braking mechanism according to claim 1, characterized in that: The inner walls of both the first connecting plate (3) and the second connecting plate (4) are provided with a plurality of ventilation slots (20), and the inner walls of the second ventilation slot (20) are provided with ventilation slots (19).

6. A pin coupling with a braking mechanism according to claim 1, characterized in that: The top of the limiting disc 1 (9) is fixedly connected to a rubber pad 2 (22), and the bottom of the limiting disc 2 (15) is fixedly connected to a buffer pad (23).

7. A pin coupling with a braking mechanism according to claim 1, characterized in that: A second spring (11) is provided on the lower side of the outer wall of the sliding rod (7), and a second washer (21) is provided on the adjacent side of the first nut (10) and the second nut (12).

8. A pin coupling with a braking mechanism according to claim 1, characterized in that: The upper and lower ends of the sliding rod (7) are fixedly connected to buffer blocks (8), and multiple buffer blocks (8) are slidably connected at the same horizontal height.