Coupling head of central buffer coupling

Abstract

The utility model discloses a coupling head of a central buffer coupling, and relates to the technical field of couplings, the coupling head comprises an upper half coupling, a lower half coupling and a reinforcing mechanism, the reinforcing mechanism comprises a convex block, a concave block, a U-shaped insertion block, an n-shaped frame, a limiting block, a reset spring, a plug pin and a lifting cap, the convex block is fixedly connected to the side wall of the upper half coupling, and the concave block is fixedly connected to the side wall of the lower half coupling. And the concave block is fixedly connected to the side wall of the lower half coupling. The protruding block and the concave block are connected in an inserted mode, then the U-shaped inserting block is inserted for primary locking, the limiting block is pressed through the elastic force of the reset spring so that the plug pin can be tightly inserted into the U-shaped inserting block, locking is achieved, when the U-shaped inserting block needs to be dismantled, the lifting cap is pulled so that the tail end of the plug pin can be separated from the U-shaped inserting block, and then the U-shaped inserting block can be pulled out for unlocking. The problems that a traditional coupler is fixed through screws, the fixing mode is single, and the coupler is prone to falling off are solved, and the effect of fixing and fastening the coupler is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a coupling head of a central buffer coupling. Background Art

[0002] A coupling is a mechanical device used to connect two shafts and transmit power or torque. It is often used to solve problems such as misalignment between shafts, angular deviation, or distance difference between shafts. Couplings can transmit power in rotational motion and can absorb and reduce shock and vibration caused by misalignment or vibration of shafts. Couplings are widely used in various mechanical equipment and industrial fields, such as engines, pumps, fans, transmissions, etc.

[0003] For example, the Chinese patent with application number CN202320948592.4 discloses a buffer coupling, including a half coupling, a spring pin, a buffer block and a shock absorbing mechanism. There are two half couplings, and the two half couplings are connected by a spring pin. A buffer block is installed between the two half couplings. The buffer block is provided with multiple bosses. A first spring is installed on the left and right sides of each boss. A second spring is installed on each buffer block to penetrate the boss. A first mounting groove for mounting the buffer block is provided on the half coupling. A plurality of second mounting grooves for mounting the boss are provided on the half coupling. A plurality of shock absorbing mechanisms are installed in the half coupling. The utility model is convenient for absorbing axial vibration and torsional force, and has good buffering performance.

[0004] However, in actual use, the device only relies on a spring pin to connect the two half couplings, and the fixing method is single. The coupling is prone to loosening when working at high intensity, and the fixing effect is not firm. In addition, the device mainly relies on springs for shock absorption, and the shock absorption effect is not obvious. Utility Model Content

[0005] In view of the above problems, the utility model proposes a coupling head of a central buffer coupling, which is used to solve the defects of the existing coupling, such as single fixing method, loose fixing and poor shock absorption performance.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A coupling head of a central buffer coupling, comprising an upper half coupling, a lower half coupling and a reinforcement mechanism. The reinforcement mechanism includes a convex block, a concave block, a U-shaped insertion block, a 冂-shaped frame, a limit block, a return spring, a pin and a lifting cap. The convex block is fixedly connected to the side wall of the upper half coupling, and the concave block is fixedly connected to the side wall of the lower half coupling. The convex block is inserted into the interior of the concave block. A through hole is formed in the interior of the convex block, and a U-shaped insertion block is inserted into the through hole. The U-shaped insertion block penetrates through the convex block and the concave block. The top of the U-shaped insertion block is fixedly connected to a 冂-shaped frame, and one side of the 冂-shaped frame is fixedly connected to the side wall of the concave block. A pin is connected through the top of the 冂-shaped frame. A limit block is fixedly connected to the outer wall of the pin, and the bottom surface of the limit block is in contact with the top surface of the U-shaped insertion block. A return spring is sleeved on the outside of the pin. The bottom of the return spring is fixedly connected to the limit block, and the top is closely attached to the bottom surface of the 冂-shaped frame. The top of the pin is fixedly connected to a lifting cap.

[0008] A further improvement of the technical solution of the present utility model lies in that: annular grooves are formed in the interiors of the upper half coupling and the lower half coupling, buffer gaskets are placed in the annular grooves, elastic convex strips are fixedly connected to both sides of the buffer gaskets, and the elastic convex strips are abutted against the side edges of the annular grooves.

[0009] Adopting the above technical solution, the buffer gaskets and the elastic convex strips in this solution can buffer the vibration generated during the operation of the coupling, and reduce the damage of parts caused by vibration of the coupling.

[0010] A further improvement of the technical solution of the present utility model lies in that: an arc-shaped elastic gasket is placed between the upper half coupling and the lower half coupling, and there are four groups of elastic gaskets, which are annularly distributed between the coupling and the lower half coupling.

[0011] Adopting the above technical solution, an arc-shaped elastic gasket is placed between the upper half coupling and the lower half coupling in this solution. This elastic gasket can shock-absorb the upper half coupling and the lower half coupling, prevent collision damage, and extend the service life of the equipment.

[0012] A further improvement of the technical solution of the present utility model lies in that: at least six groups of fixing bolts are threadedly connected through the surfaces of the upper half coupling and the lower half coupling, and the tails of the fixing bolts are fixed by nuts.

[0013] Adopting the above technical solution, the fixing bolts in this solution can initially fix the upper half coupling and the lower half coupling, prevent them from falling off, and improve the stability of the coupling.

[0014] A further improvement of the technical solution of the present utility model lies in that: an input shaft sleeve is fixedly connected to the outside of the upper half coupling, and an output shaft sleeve is fixedly connected to the other end of the lower half coupling away from the input shaft sleeve.

[0015] The above technical solution is adopted, in which the input shaft sleeve is connected to the output shaft of the motor, and the output shaft sleeve is connected to the driven shaft.

[0016] A further improvement of the technical solution of the utility model is that notches consistent with the through hole are opened on both sides of the concave block, and when the convex block is inserted into the concave block, the notches are coaxial with the through hole.

[0017] By adopting the above technical solution, the U-shaped plug in the solution is inserted into the notches and through holes provided on both sides of the concave block, so as to preliminarily fix the convex block and the concave block to prevent them from falling off.

[0018] A further improvement of the technical solution of the utility model is that a slot hole adapted to the latch is provided at the left end of the U-shaped plug block and the top of the cam frame, and the latch is movably connected with the cam frame and the U-shaped plug block.

[0019] By adopting the above technical solution, the latch in the solution can move up and down in the U-shaped frame and the U-shaped plug block, and cooperate with the return spring and the limit block to achieve rapid disassembly and assembly, thereby improving the convenience of use.

[0020] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0021] 1. The utility model provides a coupling head of a central buffer coupling, which adopts the cooperation of a convex block, a concave block, a U-shaped plug-in block, a shaped frame, a limit block, a reset spring, a pin, and a lifting cap. The convex block and the concave block are plugged in, and then the U-shaped plug-in block is inserted for preliminary locking. The limit block is pressed against the elastic force of the reset spring so that the pin is firmly inserted into the inside of the U-shaped plug-in block to achieve locking. When the U-shaped plug-in block needs to be removed, the lifting cap is pulled to separate the end of the pin from the U-shaped plug-in block, and the U-shaped plug-in block can be pulled out to release the lock, thereby solving the problem that the traditional coupling is fixed by screws, the fixing method is single, and it is easy to fall off, and the effect of fixing and tightening the coupling is achieved.

[0022] 2. The utility model provides a coupling head of a central buffer coupling, which adopts the cooperation of a buffer gasket and an elastic convex strip. The buffer gasket is placed in the annular groove inside the upper coupling and the lower coupling. The buffer gasket cooperates with the elastic convex strip to buffer the coupling, and the arc-shaped elastic gasket placed between the upper coupling and the lower coupling has a certain shock-absorbing effect, thereby improving the service life of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a front cross-sectional structural schematic diagram of the utility model;

[0025] Figure 3 The enlarged sectional view structure diagram of part A of the present utility model Figure 1 ;

[0026] Figure 4 The partial structure diagram of the present utility model

[0027] In the figure: 1, upper half coupling; 2, lower half coupling; 3, reinforcement mechanism; 301, convex block; 302, concave block; 303, U-shaped insert block; 304, 冂-shaped frame; 305, limit block; 306, return spring; 307, bolt; 308, lifting cap; 309, through hole; 4, fixing bolt; 5, input shaft sleeve; 6, output shaft sleeve; 7, buffer gasket; 8, elastic convex strip; 9, annular groove Specific embodiments

[0028] The following further describes the present utility model in detail with reference to the embodiments

[0029] Embodiment 1

[0030] As Figure 1-4 shown, the present utility model provides a coupling head of a central buffer coupling, including an upper half coupling 1, a lower half coupling 2 and a reinforcement mechanism 3. The reinforcement mechanism 3 includes a convex block 301, a concave block 302, a U-shaped insert block 303, a 冂-shaped frame 304, a limit block 305, a return spring 306, a bolt 307 and a lifting cap 308. The convex block 301 is fixedly connected to the side wall of the upper half coupling 1, and the concave block 302 is fixedly connected to the side wall of the lower half coupling 2. The convex block 301 is inserted into the inside of the concave block 302. A through hole 309 is opened in the inside of the convex block 301, and a U-shaped insert block 303 is inserted into the inside of the through hole 309. The U-shaped insert block 303 penetrates through the convex block 301 and the concave block 302. The top of the U-shaped insert block 303 is fixedly connected with a 冂-shaped frame 304. One side of the 冂-shaped frame 304 is fixedly connected to the side wall of the concave block 302. A bolt 307 is connected through the top of the 冂-shaped frame 304. A limit block 305 is fixedly connected to the outer wall of the bolt 307. The bottom surface of the limit block 305 is in contact with the top surface of the U-shaped insert block 303. A return spring 306 is sleeved on the outside of the bolt 307. The bottom of the return spring 306 is fixedly connected with the limit block 305, and the top is in close contact with the bottom surface of the 冂-shaped frame 304. The top of the bolt 307 is fixedly connected with a lifting cap 308

[0031] In this embodiment, the protrusion 301, the recessed block 302, the U-shaped plug block 303, the bracket 304, the limit block 305, the reset spring 306, the pin 307 and the lifting cap 308 are coordinated. The protrusion 301 and the recessed block 302 are plugged into each other, and then the U-shaped plug block 303 is inserted for preliminary locking. The elastic force of the reset spring 306 presses the limit block 305 so that the pin 307 is firmly inserted into the interior of the U-shaped plug block 303 to achieve locking. When the U-shaped plug block 303 needs to be removed, the lifting cap 308 is pulled to disengage the end of the pin 307 from the U-shaped plug block 303, and the U-shaped plug block 303 can be pulled out to release the lock, thereby solving the problem that the traditional coupling is fixed by screws, the fixing method is single and easy to fall off, and the coupling is fixed and tightened.

[0032] Example 2

[0033] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, an annular groove 9 is opened inside the upper coupling 1 and the lower coupling 2, and a buffer gasket 7 is placed inside the annular groove 9. Elastic convex strips 8 are fixedly connected to both sides of the buffer gasket 7, and the elastic convex strips 8 abut against the side edges of the annular groove 9. An arc-shaped elastic gasket is placed between the upper coupling 1 and the lower coupling 2, and four groups of elastic gaskets are arranged, which are distributed in a ring between the coupling 1 and the lower coupling 2. The surface threads of the upper coupling 1 and the lower coupling 2 are penetrated and connected with at least six groups of fixing bolts 4, and the tails of the fixing bolts 4 are fixed by nuts.

[0034] In this embodiment, the buffer gasket 7 and the elastic ridge 8 in the scheme can buffer the vibration generated when the coupling is working, and reduce the damage to the parts of the coupling caused by vibration. In the scheme, an arc-shaped elastic gasket is placed between the upper coupling 1 and the lower coupling 2. The elastic gasket can reduce the shock of the upper coupling 1 and the lower coupling 2 to prevent damage from bumps and collisions, thereby extending the service life of the equipment. The fixing bolts 4 in the scheme can preliminarily fix the upper coupling 1 and the lower coupling 2 to prevent them from falling off, thereby improving the stability of the coupling.

[0035] Example 3

[0036] like Figure 1-4As shown, on the basis of Example 1 and Example 2, the utility model provides a technical solution: preferably, the outer side of the upper half coupling 1 is fixedly connected with an input shaft sleeve 6, the other end of the lower half coupling 2 away from the input shaft sleeve 6 is fixedly connected with an output shaft sleeve 5, notches consistent with the through hole 309 are provided on both sides of the concave block 302, and when the protrusion 301 is inserted into the concave block 302, the notch is coaxial with the through hole 309, the left end of the U-shaped plug block 303 and the top of the cam frame 304 are provided with slots adapted to the pin 307, and the pin 307 is movably connected with the cam frame 304 and the U-shaped plug block 303.

[0037] In this embodiment, the input shaft sleeve 6 in the scheme is connected to the output shaft of the motor, and the output shaft sleeve 5 is connected to the driven shaft. The U-shaped plug 303 in the scheme is inserted into the grooves and through holes 309 opened on both sides of the recessed block 302, which can preliminarily fix the protrusion 301 and the recessed block 302 to prevent them from falling off. The pin 307 in the scheme can move up and down in the U-shaped frame 304 and the U-shaped plug 303, and cooperate with the reset spring 306 and the limit block 305 to achieve quick disassembly and assembly, thereby improving the convenience of use.

[0038] The following is a detailed description of the working principle of the coupling head of the central buffer coupling.

[0039] like Figure 1-4 As shown, when in use, the upper coupling 1 and the lower coupling 2 are overlapped and placed, and the buffer gasket 7 is placed in the annular groove 9 inside the upper coupling 1 and the lower coupling 2, and then the fixing bolts 4 are inserted into the surface of the upper coupling 1 and the lower coupling 2, and locked by the nut. At this time, the protrusion 301 and the recessed block 302 are plugged in, and then the U-shaped plug block 303 is inserted to lock it. The elastic force of the reset spring 306 presses the limit block 305 so that the pin 307 is tightly inserted into the inside of the U-shaped plug block 303 to achieve re-locking. When the U-shaped plug block 303 needs to be removed, the lifting cap 308 is pulled to disengage the end of the pin 307 from the U-shaped plug block 303, and the U-shaped plug block 303 can be pulled out to release the lock.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A coupling head of a central buffer coupling, comprising an upper coupling (1), a lower coupling (2) and a reinforcement mechanism (3), characterized in that: The reinforcing mechanism (3) comprises a convex block (301), a concave block (302), a U-shaped plug block (303), a shaped frame (304), a limit block (305), a reset spring (306), a latch (307), and a lifting cap (308); the convex block (301) is fixedly connected to the side wall of the upper half coupling (1); the concave block (302) is fixedly connected to the side wall of the lower half coupling (2); the convex block (301) is inserted into the concave block (302); a through hole (309) is provided inside the convex block (301); a U-shaped plug block (303) is inserted into the through hole (309); the U-shaped plug block (303) passes through the convex block (301) and the concave block (302); The top of the U-shaped plug block (303) is fixedly connected to a cam frame (304), one side of the cam frame (304) is fixedly connected to the side wall of the recessed block (302), the top of the cam frame (304) is penetrated by a latch (307), the outer wall of the latch (307) is fixedly connected to a limit block (305), the bottom surface of the limit block (305) is in contact with the top surface of the U-shaped plug block (303), the outer sleeve of the latch (307) is connected to a reset spring (306), the bottom of the reset spring (306) is fixedly connected to the limit block (305), and the top is tightly fitted with the bottom surface of the cam frame (304), and the top of the latch (307) is fixedly connected to a lifting cap (308).

2. The coupling head of the central buffer coupling according to claim 1, characterized in that: An annular groove (9) is provided inside the upper half coupling (1) and the lower half coupling (2), a buffer gasket (7) is placed inside the annular groove (9), elastic convex strips (8) are fixedly connected to both sides of the buffer gasket (7), and the elastic convex strips (8) abut against the side edges of the annular groove (9).

3. The coupling head of the central buffer coupling according to claim 1, characterized in that: An arc-shaped elastic gasket is placed between the upper half coupling (1) and the lower half coupling (2), and four groups of elastic gaskets are arranged and distributed in an annular shape between the coupling (1) and the lower half coupling (2).

4. The coupling head of the central buffer coupling according to claim 1, characterized in that: At least six groups of fixing bolts (4) are threadedly connected through the surfaces of the upper half coupling (1) and the lower half coupling (2), and the tails of the fixing bolts (4) are fixed by nuts.

5. The coupling head of the central buffer coupling according to claim 1, characterized in that: An input shaft sleeve (6) is fixedly connected to the outer side of the upper half coupling (1), and an output shaft sleeve (5) is fixedly connected to the other end of the lower half coupling (2) away from the input shaft sleeve (6).

6. The coupling head of the central buffer coupling according to claim 1, characterized in that: Notches that are consistent with the through hole (309) are provided on both sides of the concave block (302), and when the convex block (301) is inserted into the concave block (302), the notches are coaxial with the through hole (309).

7. The coupling head of the central buffer coupling according to claim 1, characterized in that: The left end of the U-shaped plug block (303) and the top of the shaped frame (304) are provided with slots matched with the latch pin (307), and the latch pin (307) is movably connected with the shaped frame (304) and the U-shaped plug block (303).

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