CN220850469U

CN220850469U - Long shaft coupler

Info

Publication number: CN220850469U
Application number: CN202322858932.7U
Authority: CN
Inventors: 马友玉; 杨德福; 任凤群; 任磊
Original assignee: Tianjin Renchuang Precision Machinery Co ltd
Current assignee: Tianjin Renchuang Precision Machinery Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-04-26
Anticipated expiration: 2033-10-24

Abstract

The utility model relates to the technical field of couplings, and discloses a long shaft coupling which comprises a hexagonal connecting shaft sleeve and a hexagonal sliding long shaft core, wherein the hexagonal sliding long shaft core is positioned in the hexagonal connecting shaft sleeve, the right end of the hexagonal connecting shaft sleeve is provided with a torque limiting mechanism, the positions of the hexagonal sliding long shaft core, which are close to the two sides of the hexagonal connecting shaft sleeve, are fixedly connected with limiting columns, the long shaft coupling is characterized in that when the transmitted torque and the speed are overlarge, a D shaft in a connecting shaft interface can apply acting force to a D shaft clamping block, the D shaft clamping block moves upwards under the acting force to compress two semicircular spring plates, at the moment, a shaft in the connecting shaft interface can continuously slide in the connecting shaft interface and cannot be transmitted, and when the coupling is transmitted, the operation of the structure can effectively protect equipment from the damage caused by inertia rotation acting force when the rotating speed is too high or the torque is suddenly stopped.

Description

Long shaft coupler

Technical Field

The utility model relates to the technical field of couplings, in particular to a long-shaft coupling.

Background

The coupling is a mechanical part for connecting two shafts in different mechanisms to rotate together so as to transmit torque, and in the high-speed and heavy-load power transmission, some couplings have the functions of buffering, damping and improving the dynamic performance of a shaft system, and the coupling consists of two half parts which are respectively connected with a driving shaft and a driven shaft, and a general power machine is connected with a working machine by virtue of the coupling.

When the existing coupling is used, if the existing coupling is suddenly stopped under the condition of high rotating speed and high load, the generated inertia acting force can damage transmission equipment and a transmission shaft to a certain extent, the service life of the equipment is influenced, even the equipment is directly damaged, the existing elastic coupling only performs certain buffering between the shaft and the shaft sleeve, and part of acting force is transmitted to the equipment, so that the service life of the equipment is influenced, and the equipment cannot be completely and effectively protected.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a long shaft coupler which has the advantage of less damage to equipment, and solves the problem of damage to the equipment caused by inertial rotation acting force when the rotating speed is too fast and the load is suddenly stopped when the rotating speed is large.

(II) technical scheme

In order to achieve the aim of less damage to equipment, the utility model provides the following technical scheme: the long shaft coupler comprises a hexagonal connecting shaft sleeve and a hexagonal sliding long shaft core, wherein the hexagonal sliding long shaft core is positioned in the hexagonal connecting shaft sleeve, a torque limiting mechanism is arranged at the right end of the hexagonal connecting shaft sleeve, limiting columns are fixedly connected to the positions, close to the two sides of the hexagonal connecting shaft sleeve, of the hexagonal sliding long shaft core, and two limiting sliding grooves are formed in the inner wall of the hexagonal sliding long shaft core;

The limiting posts are all in sliding connection with the inner wall of the hexagonal connecting shaft sleeve of the limiting chute, two pressing plate fixing blocks are fixedly connected to two sides of the hexagonal connecting shaft sleeve, and pressing plates are rotatably connected between the corresponding two pressing plate fixing blocks;

Wherein, the clamp plate is kept away from the one end of hexagonal slip major axis core and the equal fixedly connected with oblique locking piece of opposite one side, all fixedly connected with little spring between the lower extreme of clamp plate and the hexagonal axle sleeve.

Preferably, the both sides of hexagonal company axle sleeve have all been seted up the movable groove of locking piece, and the oblique locking piece extends into spacing spout from the movable groove of corresponding locking piece respectively in, and the oblique locking piece all suits with the spacing post looks that corresponds, fixedly connected with big spring between hexagonal slip major axis core and the diapire of hexagonal company axle sleeve.

Preferably, the torque limiting mechanism comprises a fixed seat, the fixed seat is fixedly arranged at the right end of the hexagonal connecting shaft sleeve, the right surface of the hexagonal connecting shaft sleeve is fixedly connected with a connecting shaft interface, the outer surface of the connecting shaft interface is fixedly connected with a torque adjusting bin, and the interior of the torque adjusting bin is communicated with the interior of the connecting shaft interface.

Preferably, the torque adjusting bin is slidably connected with a D-axis clamping block, one surface of the D-axis clamping block, which is far away from the fixing seat, is an inclined surface, the torque adjusting bin is slidably connected with a sliding plate, and two semicircular spring plates are arranged between the sliding plate and the D-axis clamping block.

Preferably, an adjusting screw is connected with the center position of one surface of the hexagonal connecting shaft sleeve far away from the connecting shaft interface in a threaded manner, the adjusting screw extends to the outer surface of the sliding plate, and the same torque limiting mechanism is arranged at one end of the hexagonal sliding long shaft core far away from the hexagonal connecting shaft sleeve.

(III) beneficial effects

Compared with the prior art, the utility model provides a long shaft coupler, which has the following beneficial effects:

1. this major axis shaft coupling can make when the driving shaft is to driven shaft transmission, and the moment of torsion and the too big time of speed of transmission, and the effort can be applyed to the D axle fixture block to the D axle in the axle coupling, and the D axle fixture block receives the effort to upwards remove and compress two semicircle spring plates, and the axle in the axle coupling can constantly skid in the axle coupling this moment, can not transmit, can make when this shaft coupling carries out the transmission through the operation of above structure, can obtain effectual protection, when having avoided rotational speed too fast or too big abrupt stop of moment of torsion, the damage of inertial rotation effort to equipment.

2. This long-axis shaft coupling, through manual in pushing into hexagonal company axle sleeve with hexagonal slip major axis core, this moment big spring can be compressed, until the inclined plane contact of limit post and oblique locking piece on it, apply effort to oblique locking piece, simultaneously oblique locking piece can apply effort to little spring through the clamp plate, little spring receives the compression and produces the deformation, until the limit post moves to the position that surpasss oblique locking piece, the effect that the oblique locking piece received little spring pops out the position locking of limit post and hexagonal slip major axis core this moment, at this moment through the torque limiting mechanism with on the hexagonal company axle sleeve inserts the surface of driving shaft, during the insertion, with the D axle fixture block with the D face alignment of driving shaft, the driving shaft can apply effort to the inclined plane on the D axle fixture block, thereby upwards remove two semicircle spring plates compression, thereby lock the driving shaft, then through clockwise screwing adjusting screw, adjusting screw exerts decurrent effort to the slide plate, thereby make two semicircle spring plates further compression, tightly on the D face of driving shaft fixture block, then manual pressing two clamp plates, can be with the position locking of limit post and hexagonal slip major axis core sleeve on the axial core sleeve, can be with the driving shaft and the transmission shaft can not be adjusted the limit the distance by the automatic transmission device with the hexagonal slip on the axial core sleeve, can be improved, the transmission device can be applied to the situation between the driving shaft is realized with the axial extension of the axial.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal cross-sectional structure of the present utility model;

FIG. 3 is a schematic diagram of the internal cross-sectional structure of the torque limiting mechanism of the present utility model.

In the figure: 1. hexagonal connecting shaft sleeve; 2. hexagonal sliding long shaft core; 3. a limit column; 4. limiting sliding grooves; 5. a platen fixing block; 6. a pressing plate; 7. a small spring; 8. an oblique locking block; 9. a locking piece movable groove; 10. a large spring; 11. a fixing seat; 12. a connecting shaft interface; 13. a torque adjusting bin; 14. an adjusting screw; 15. a D-axis clamping block; 16. a semicircular spring plate; 17. and (3) a sliding plate.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-3, the present utility model provides a new technical solution: the long shaft coupler comprises a hexagonal connecting shaft sleeve 1 and a hexagonal sliding long shaft core 2, wherein the hexagonal sliding long shaft core 2 is positioned in the hexagonal connecting shaft sleeve 1, the right end of the hexagonal connecting shaft sleeve 1 is provided with a torque limiting mechanism, two sides of the hexagonal sliding long shaft core 2, which are close to the hexagonal connecting shaft sleeve 1, are fixedly connected with limiting columns 3, two limiting sliding grooves 4 are formed in the inner wall of the hexagonal sliding long shaft core 2, the limiting columns 3 are in sliding connection with the inner wall of the hexagonal connecting shaft sleeve 1 of the limiting sliding grooves 4, two pressing plate fixing blocks 5 are fixedly connected with two sides of the hexagonal connecting shaft sleeve 1, a pressing plate 6 is rotatably connected between the corresponding two pressing plate fixing blocks 5, one end, which is far away from the hexagonal sliding long shaft core 2, of the pressing plate 6 is fixedly connected with an inclined locking block 8, a small spring 7 is fixedly connected between the lower end of the pressing plate 6 and the hexagonal connecting shaft sleeve 1, the two sides of the hexagonal connecting shaft sleeve 1 are respectively provided with a locking block movable groove 9, the inclined locking blocks 8 respectively extend into the limiting sliding grooves 4 from the corresponding locking block movable grooves 9, the inclined locking blocks 8 are respectively matched with the corresponding limiting posts 3, a large spring 10 is fixedly connected between the hexagonal sliding long shaft core 2 and the bottom wall of the hexagonal connecting shaft sleeve 1, the torque limiting mechanism comprises a fixed seat 11, the fixed seat 11 is fixedly arranged at the right end of the hexagonal connecting shaft sleeve 1, the right surface of the hexagonal connecting shaft sleeve 1 is fixedly connected with a connecting shaft interface 12, the outer surface of the connecting shaft interface 12 is fixedly connected with a torque adjusting bin 13, the inside of the torque adjusting bin 13 is communicated with the inside of the connecting shaft interface 12, a D-shaft clamping block 15 is in sliding connection with the torque adjusting bin 13, one side of the D-shaft clamping block 15, which is far away from the fixed seat 11, is an inclined surface, a sliding plate 17 is in sliding connection with the D-shaft clamping block 15, two semicircular spring plates 16 are arranged between the sliding plate 17 and the D-shaft clamping block 15, the adjusting screw 14 is connected with the center position of one surface of the hexagonal connecting shaft sleeve 1 far away from the connecting shaft interface 12 in a threaded manner, the adjusting screw 14 extends to the outer surface of the sliding plate 17, the end of the hexagonal sliding long shaft core 2 far away from the hexagonal connecting shaft sleeve 1 is provided with the same torque limiting mechanism, during use, the hexagonal sliding long shaft core 2 is manually pressed into the hexagonal connecting shaft sleeve 1, the large spring 10 is compressed until the limiting post 3 on the large spring is contacted with the inclined surface of the inclined locking block 8, the acting force is applied to the inclined locking block 8, meanwhile, the inclined locking block 8 applies the acting force to the small spring 7, the small spring 7 is compressed and deformed until the limiting post 3 moves to a position exceeding the inclined locking block 8, the inclined locking block 8 is ejected out of the position of the limiting post 3 and the hexagonal sliding long shaft core 2 by the acting force of the small spring 7, at this moment, the torque limiting mechanism on the hexagonal connecting shaft sleeve 1 is inserted to the outer surface of the driving shaft, during insertion, the D shaft clamping block 15 is aligned with the D surface of the driving shaft, the driving shaft is applied to the inclined surface on the D shaft clamping block 15, so that the D shaft clamping block 15 moves upwards to enable the two semicircular plates 16 to be tightly pressed against the inclined surface of the driving shaft 10, the two semicircular plates 16 are compressed, the position of the driving shaft core 2 is further compressed, the position of the large spring is tightly is pressed against the driving shaft core 2 is compressed by the driving shaft 10, the position of the large spring 2 is tightly, the axial limiting mechanism is compressed, and the driving shaft 2 is tightly is compressed and the driving shaft clamping plate is tightly is compressed, and the driving shaft 2 is compressed tightly is compressed and is tightly by the driving shaft clamping plate is compressed and is tightly. The device can automatically make up the difference of the distance between the driving shaft and the driven shaft by setting the operation of the structure, so that the device can be suitable for the situation that the distance between the driving shaft and the driven shaft is too far, the applicability to the transmission situation of different transmission shafts is improved, and the D shaft in the connecting shaft interface 12 can apply acting force to the D shaft clamping block 15 when the driving shaft is used for transmitting the driven shaft and the transmitted torque and the speed are too large, the D shaft clamping block 15 is upwards moved by the acting force to compress the two semicircular spring plates 16, at the moment, the shaft in the connecting shaft interface 12 can continuously slide in the connecting shaft interface 12 and cannot be transmitted, the device can be effectively protected when the shaft coupling is used for transmitting, and the damage of the inertia rotating acting force to the device when the rotating speed is too fast or the torque is suddenly stopped is avoided.

Working principle: when in use, the hexagonal sliding long shaft core 2 is pressed into the hexagonal connecting shaft sleeve 1 by hand, at the moment, the large spring 10 is compressed until the limit post 3 on the large spring contacts with the inclined surface of the inclined locking block 8, the inclined locking block 8 applies force, meanwhile, the inclined locking block 8 applies force to the small spring 7 through the pressing plate 6, the small spring 7 is compressed to deform until the limit post 3 moves to a position exceeding the inclined locking block 8, at the moment, the inclined locking block 8 ejects the limit post 3 and the hexagonal sliding long shaft core 2 by the force of the small spring 7 to lock the positions of the limit post 3 and the hexagonal sliding long shaft core 2, at the moment, by inserting a torque limiting mechanism on the hexagonal connecting shaft sleeve 1 onto the outer surface of the driving shaft, the D-shaft clamping block 15 is aligned with the D-surface of the driving shaft, the driving shaft applies force to the inclined surface on the D-shaft clamping block 15, thereby upwards moving the D-shaft clamping block 15 compresses the two semicircular spring plates 16, thus, the driving shaft is locked, then the adjusting screw 14 is screwed clockwise, the adjusting screw 14 applies downward acting force to the sliding plate 17, so that the two semicircular spring plates 16 are further compressed, the D-axis clamping block 15 is tightly pressed on the D surface of the driving shaft, then the two pressing plates 6 are manually pressed, the two inclined locking blocks 8 can be used for limiting and contacting the limiting post 3, at the moment, the hexagonal sliding long-axis core 2 can be ejected by the compressed large spring 10, at the moment, the torque limiting mechanism on the hexagonal sliding long-axis core 2 is aligned with the D surface of the driven shaft, the large spring 10 can be used for propping the torque limiting mechanism on the hexagonal sliding long-axis core 2 on the driven shaft, and by the aid of the torque limiting mechanism, when the driving shaft drives the driven shaft, the transmitted torque and speed are overlarge, the D axis in the connecting shaft interface 12 can apply acting force to the D-axis clamping block 15, the D-axis clamping block 15 moves upwards under the action of the acting force to compress the two semicircular spring plates 16, and at this time, the shaft in the coupling 12 continuously slides in the coupling 12 and cannot be driven.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a major axis shaft coupling, includes hexagonal axle sleeve (1) and hexagonal slip major axis core (2), its characterized in that: the hexagonal sliding long shaft core (2) is positioned in the hexagonal connecting shaft sleeve (1), a torque limiting mechanism is arranged at the right end of the hexagonal connecting shaft sleeve (1), limiting columns (3) are fixedly connected to two sides, close to the hexagonal connecting shaft sleeve (1), of the hexagonal sliding long shaft core (2), and two limiting sliding grooves (4) are formed in the inner wall of the hexagonal sliding long shaft core (2);

The limiting posts (3) are all in sliding connection with the inner wall of the hexagonal connecting shaft sleeve (1) of the limiting sliding groove (4), two pressing plate fixing blocks (5) are fixedly connected to two sides of the hexagonal connecting shaft sleeve (1), and pressing plates (6) are rotatably connected between the two corresponding pressing plate fixing blocks (5);

Wherein, the one end that hexagonal slip major axis core (2) was kept away from to clamp plate (6) and the opposite one side all fixedly connected with oblique locking piece (8), all fixedly connected with little spring (7) between the lower extreme of clamp plate (6) and hexagonal axle sleeve (1).

2. A long axis coupling as defined in claim 1 wherein: the two sides of the hexagonal connecting shaft sleeve (1) are provided with locking block movable grooves (9), the inclined locking blocks (8) extend into the limiting sliding grooves (4) from the corresponding locking block movable grooves (9) respectively, the inclined locking blocks (8) are matched with the corresponding limiting columns (3), and a large spring (10) is fixedly connected between the hexagonal sliding long shaft core (2) and the bottom wall of the hexagonal connecting shaft sleeve (1).

3. A long axis coupling as defined in claim 1 wherein: the torque limiting mechanism comprises a fixing seat (11), the fixing seat (11) is fixedly arranged at the right end of the hexagonal connecting shaft sleeve (1), a connecting shaft interface (12) is fixedly connected to the right surface of the hexagonal connecting shaft sleeve (1), a torque adjusting bin (13) is fixedly connected to the outer surface of the connecting shaft interface (12), and the interior of the torque adjusting bin (13) is communicated with the interior of the connecting shaft interface (12).

4. A long axis coupling according to claim 3, wherein: the torque adjusting bin (13) is slidably connected with a D-axis clamping block (15), one surface, far away from the fixed seat (11), of the D-axis clamping block (15) is an inclined surface, the torque adjusting bin (13) is slidably connected with a sliding plate (17), and two semicircular spring plates (16) are arranged between the sliding plate (17) and the D-axis clamping block (15).

5. A long axis coupling as defined in claim 4 wherein: the hexagonal connecting shaft sleeve (1) is characterized in that an adjusting screw (14) is connected to the center position of one surface, far away from the connecting shaft interface (12), of the hexagonal connecting shaft sleeve (1) in a threaded mode, the adjusting screw (14) extends to the outer surface of the sliding plate (17), and the same torque limiting mechanism is arranged at one end, far away from the hexagonal connecting shaft sleeve (1), of the hexagonal sliding long shaft core (2).