CN212985844U

CN212985844U - Speed change device for gear transmission

Info

Publication number: CN212985844U
Application number: CN202021788684.3U
Authority: CN
Inventors: 李俞峰; 孔阳阳; 吴鲁纪; 杨林杰; 曹志刚
Original assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Current assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-16
Anticipated expiration: 2030-08-25

Abstract

The utility model provides a gear transmission speed change device, effectively solve the problem that the driven shaft and the driving shaft rotate synchronously when the gear transmission accelerates, and the inertia of the driven shaft can not cause damage to the motor power when decelerating, and can decelerate the driven shaft at the same time, the technical proposal of the solution is that the gear transmission speed change device comprises a frame, and is characterized in that the gear transmission speed change device also comprises the motor power fixedly connected on the frame, a rotating sleeve is fixedly connected on a rotating shaft of the motor power, a separating ring is transversely and slidably connected in the rotating sleeve, the separating ring is rotatably connected on the frame, a plurality of one-way teeth are arranged on the left end of the separating ring, the left end of the frame is coaxially and rotatably connected with the rotating shaft of the motor power, the right end of the output shaft is fixedly connected with a connecting sleeve through a screw, the right end of the connecting sleeve is fixedly, the friction plate is fixedly connected to the output shaft, so that the damage of the motor can be prevented, and the service life of the motor is prolonged.

Description

Speed change device for gear transmission

Technical Field

The utility model discloses gear drive, especially speed change gear for gear drive.

Background

In the process of carrying out power transmission by adopting gear transmission, if speed change is carried out, the driven gear synchronously rotates during acceleration, the driven gear drives the driving gear to rotate under the inertia effect during deceleration, the driving gear is connected with the power motor, the deceleration of the driven shaft completely depends on the power motor, the power motor is easily damaged, and an extra braking device is needed to carry out deceleration braking on the output shaft during deceleration.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a speed change device for gear transmission, which effectively solves the problems that a driven shaft and a driving shaft rotate synchronously when the gear transmission accelerates, the inertia of the driven shaft does not damage a power motor when the gear transmission decelerates, and the driven shaft can decelerate at the same time, and the technical proposal for solving the problems is that the speed change device comprises a frame, and is characterized by also comprising the power motor fixedly connected with the frame, a rotating sleeve is fixedly connected on the rotating shaft of the power motor, a separating ring is transversely and slidably connected in the rotating sleeve and is rotatably connected on the frame, a plurality of one-way teeth are arranged at the left end of the separating ring, an output shaft is coaxially and rotatably connected at the left end of the frame and the rotating shaft of the power motor, the right end of the output shaft is fixedly connected with a connecting sleeve through a screw, the right end of the, the left end of the output shaft is fixedly connected with an output gear, the output shaft is fixedly connected with a friction plate, and the friction plate is braked through a braking device.

Preferably, the separating ring is rotatably connected to the frame, a sliding block is fixedly connected to the right end of the separating ring, a limiting ring is fixedly connected to the outer circumference of the middle part of the separating ring, and a plurality of unidirectional teeth arranged at the left end of the separating ring are distributed along the axis and are uniformly arranged at intervals and matched with the right end of the connecting sleeve.

Preferably, the braking device comprises a supporting shaft which is fixedly connected to the rack and is vertically arranged, the upper end of the supporting shaft is rotatably connected with a braking clamp, the braking clamp comprises a clamping head extending backwards and a braking rod extending forwards, the clamping head of the braking clamp is positioned at the lower end of the braking disk and contacts with the side surface of the braking disk when the clamping head is closed, the front section of the braking rod is provided with power shafts which are vertically arranged, each power shaft slides and is rotatably connected with a braking block, each braking block is provided with a threaded hole which is transversely arranged, the two threaded holes rotate and are respectively in threaded connection with one end of a bidirectional threaded rod, the bidirectional threaded rod is controlled by a longitudinal motor which is fixedly connected to the rack, and the longitudinal motor is controlled by a touch switch which is.

Preferably, the rack comprises a bottom plate, a plurality of vertical plates which are vertically arranged and transversely arranged are fixedly connected to the bottom plate, rotating holes which are transversely arranged are formed in each vertical plate, and the rotating holes are coaxially arranged.

Preferably, the right end of the rotating sleeve is fixedly connected to a rotating shaft of the power motor, the left end of the rotating sleeve is provided with a sliding groove which is transversely arranged and matched with the right end of the rotating ring, and a pressure spring is fixedly connected in the sliding groove.

Preferably, the right end matching teeth of the connecting sleeve are in one-way matching with the one-way teeth and are separated reversely.

Preferably, the braking device is located on the frame in front of the friction plate when the output shaft rotates clockwise, and the braking device clamping portion is located below the brake disc.

The utility model has the advantages that:

1. when in use, the driving shaft and the driven shaft can be always kept synchronous and the transmission ratio is accurate in the process of accelerating in the gear transmission;

2. in the process of speed reduction, inertia of the driven shaft cannot be transmitted to the driving shaft after the driving shaft performs speed reduction, so that damage to the power motor is prevented, and the service life of the power motor is prolonged;

3. the inertia transmitted by the driven shaft adopts a braking device to quickly counteract the inertia of the driven shaft by braking energy so that the driving shaft and the driven shaft continue to synchronously rotate;

4. and restoring synchronous rotation connection when the inertia of the driven shaft is counteracted and the rotation speed is lower than or equal to that of the driving shaft.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a partial enlarged front view of the present invention.

Fig. 3 is a second perspective view of the front view of the present invention.

Fig. 4 is a second enlarged view of the front view of the present invention.

Fig. 5 is a sectional view of the present invention.

Fig. 6 is a partial enlarged sectional view of the present invention.

Reference numerals

1. The brake comprises a frame, 2. a power motor, 3. a rotating sleeve, 4. a separating ring, 5. a one-way tooth, 6. an output shaft, 7. a screw, 8. a connecting sleeve, 9. a matching tooth, 10. an output gear, 11. a friction plate, 12. a sliding block, 13. a limiting ring, 15. a supporting shaft, 16. a brake clamp, 17. a brake rod, 18. a power shaft, 19. a brake block, 20. a two-way threaded rod, 21. a longitudinal motor, 22. a touch switch, 23. a bottom plate, 24. a vertical plate, 25. a rotating hole and 26. a pressure spring.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 6.

The first embodiment, its technical scheme who solves is, including frame 1, a serial communication port, still include fixed connection power motor 2 in frame 1, fixedly connected with rotates cover 3 in the power motor 2 pivot, it has separating ring 4 to rotate the interior horizontal sliding connection of cover 3 to rotate, separating ring 4 rotates and connects in frame 1, a plurality of one-way teeth 5 have been seted up on separating ring 4 left end, frame 1 left end and the coaxial rotation of power motor 2 pivot are connected with output shaft 6, output shaft 6 right-hand member is through screw 7 fixedly connected with adapter sleeve 8, adapter sleeve 8 right-hand member fixedly connected with and the one-way tooth 5 matched with cooperation tooth 9 of separating ring 4 left end, output shaft 6 left end fixedly connected with output gear 10, fixedly connected with friction disc 11 on the output shaft 6, friction disc 11 brakes through arresting gear.

When the embodiment is used, in the process of carrying out gear transmission power, when speed change acceleration is needed, the rotating speed of the power motor 2 is increased, the power motor 2 transmits power to the rotating sleeve 3 fixedly connected to the rotating shaft of the motor, the separating ring 4 transversely connected in a sliding manner in the rotating sleeve 3 rotates synchronously with the rotating sleeve 3, the separating ring 4 is connected with the right end of the connecting sleeve 8 through the plurality of one-way teeth 5 at the left end, the separating ring 4 can drive the connecting sleeve 8 to rotate synchronously, the screw 7 is fixedly connected between the separating ring 4 and the output shaft 6, so that the driven shaft can accelerate synchronously in the process of accelerating the driving shaft, meanwhile, the rotating shaft of the motor and the output shaft 6 are connected integrally, when speed reduction is needed, the rotating speed of the power motor 2 is reduced, and the output shaft 6 is driven by the output part, so that the output shaft 6 can continue to rotate under the inertia effect during speed reduction, at the moment, the output shaft 6 can transmit inertia to the power motor 2, the inertia of the output shaft 6 is counteracted by the power of the power motor 2, and the damage to the power motor 2 is caused under the condition that the inertia is inevitable, so that when the power motor 2 decelerates in the deceleration process, the output shaft 6 can slowly decelerate under the action of the inertia, at the moment, the matching teeth 9 at the right end of the connecting sleeve 8 fixedly connected to the right end of the output shaft 6 are disengaged from the one-way teeth 5 at the left end of the separating ring 4, the inclined surfaces in the matching teeth 9 press the inclined surfaces on the one-way teeth 5, so that the separating ring 4 moves rightwards along the rotating connection part with the frame 1 and is disengaged from the right end of the connecting ring, at the moment, the separating ring 4 triggers a braking device in the rightward movement process, and the braking device starts to act and decelerate the friction plate 11 fixedly connected to the output shaft 6, so that the output shaft 6 is decelerated, when the rotation speed of the output shaft 6 is reduced to be the same as the rotation speed of the power motor 2, the braking device stops braking the output shaft 6, and the power motor 2 resumes synchronous driving of the output shaft 6.

In the second embodiment, on the basis of the first embodiment, the separating ring 4 is rotatably connected to the frame 1, the sliding block 12 is fixedly connected to the right end of the separating ring 4, the limiting ring 13 is fixedly connected to the outer circumference of the middle portion of the separating ring 4, and the plurality of unidirectional teeth 5 formed at the left end of the separating ring 4 are distributed along the axis and are uniformly spaced and matched with the right end of the connecting sleeve 8.

When the device is used, the spacing ring 13 fixedly connected to the separating ring 4 plays a role in limiting leftwards, meanwhile, the triggering device can be triggered in the process that the separating ring 4 moves rightwards, the one-way teeth 5 arranged at the left end of the separating ring 4 are fixedly connected with the right end of the connecting sleeve 8 when the rotating shaft of the power motor 2 accelerates, the one-way teeth 5 are separated from the matching teeth 9 at the right end of the connecting ring when the speed of the output shaft 6 under the inertia effect is greater than that of the rotating shaft of the power motor 2 when the speed of the output shaft 6 is reduced, and meanwhile, the spacing ring 13 triggers the braking device to act.

In the third embodiment, on the basis of the second embodiment, the braking device includes a supporting shaft 15 fixedly connected to the frame 1 and vertically arranged, the upper end of the supporting shaft 15 is rotatably connected with a braking clamp 16, the braking clamp 16 includes a chuck extending backward and a braking rod 17 extending forward, the chuck of the braking clamp 16 is located at the lower end of the brake disk and contacts with the side surface of the brake disk when the braking clamp is closed, the front section of the braking rod 17 is provided with power shafts 18 vertically arranged, each power shaft 18 is slidably and rotatably connected with a braking block 19, each braking block 19 is provided with a threaded hole transversely arranged, two ends of a bidirectional threaded rod 20 are respectively screwed in the two threaded holes, the bidirectional threaded rod 20 is controlled by a longitudinal motor 21 fixedly connected to the frame 1, and the longitudinal motor 21 is controlled by a touch switch 22 fixedly connected to the frame 1 and located on the right side of the limit ring 13.

When the embodiment is used, when the separating ring 4 runs rightwards, the trigger switch 22 is triggered, the trigger switch 22 controls the longitudinal motor 21 to rotate, the longitudinal motor 21 drives the coaxially and fixedly connected bidirectional threaded rod 20 to rotate, the brake blocks 19 which are in threaded connection with one end of the bidirectional threaded rod 20 synchronously move close to each other in the rotating process of the bidirectional threaded rod 20, the two brake blocks 19 drive the sliding and rotatably connected brake rods 17 to move inwards to close together in the moving process of the two brake blocks 19, the clamping heads which extend backwards on the brake clamps 16 clamp the friction plates 11 when the two brake rods 17 are closed together, the friction plates 11 reduce the speed of the output shaft 6 when being clamped, the separating ring 4 resets after the speed of the output shaft 6 is reduced, the trigger switch 22 is separated from the separating ring 4 after the separating ring 4 resets, at this time, the longitudinal motor 21 is rotated once and then stopped to release the contact between the brake caliper 16 and the friction plate 11.

Fourth embodiment, on the basis of first embodiment, frame 1 includes bottom plate 23, fixedly connected with a plurality of vertical plates 24 of vertical arrangement and horizontal arrangement on bottom plate 23, all seted up the rotation hole 25 of horizontal arrangement on each vertical plate 24, coaxial arrangement between each rotation hole 25.

When the vertical plate positioning device is used, the output shaft 6 is connected to the rotating hole 25 in the vertical plate 24 at the left end in a rotating mode, the separating ring 4 is connected to the rotating hole 25 in the vertical plate 24 at the right end in a rotating mode, the right end of the output shaft 6 is connected to the rotating hole 25 in the vertical plate 24 in the middle in a rotating mode, and the vertical plates 24 at the two ends play a role in positioning the transverse displacement of the output shaft 6.

Fifth embodiment, on the basis of the first embodiment, the right end of the rotating sleeve 3 is fixedly connected to the rotating shaft of the power motor 2, the left end of the rotating sleeve 3 is provided with a sliding groove which is transversely arranged and is matched with the right end of the rotating ring, and a pressure spring 26 is fixedly connected in the sliding groove.

When the embodiment is used, the output shaft 6 enables the rotating speed of the connecting sleeve 8 to be greater than the rotating speed of the separating ring 4 under the inertia effect, the inclined plane in the connecting tooth at the right end of the rotating sleeve 3 can push the inclined plane on the separating tooth, so that the separating ring 4 overcomes the spring pressure to move rightwards, and the separating ring 4 resets under the spring effect when the rotating speed of the output shaft 6 is reduced to be lower than the rotating speed of the rotating shaft of the power motor 2.

Sixth, on the basis of the first embodiment, the right end matching teeth 9 of the connecting sleeve 8 are in one-way matching with the one-way teeth 5 and are separated in the opposite direction.

In use, the embodiment is such that the one-way teeth 5 and the mating teeth 9 are mated and transmit power during acceleration, and are decoupled during deceleration to prevent the inertia of the output shaft 6 from being transmitted to the power motor 2.

Seventh, in addition to the first embodiment, the braking device is positioned on the frame 1 in front of the friction plate 11 when the output shaft 6 rotates clockwise, and the braking device clamping portion is positioned below the brake disc.

In use, the brake device is located below the friction plate 11 and in front of the friction plate 11 when the output shaft 6 rotates clockwise, so that the brake device always has no pushing force but no pulling force on the friction plate 11, and the friction plate 11 does not disengage from the brake device when rotating when the brake device clamps the friction plate 11.

Claims

1. The speed change device for gear transmission comprises a rack (1) and is characterized by further comprising a power motor (2) fixedly connected to the rack (1), a rotating sleeve (3) is fixedly connected to a rotating shaft of the power motor (2), a separating ring (4) is connected to the rotating sleeve (3) in a transverse sliding mode, the separating ring (4) is rotatably connected to the rack (1), a plurality of one-way teeth (5) are formed in the left end of the separating ring (4), an output shaft (6) is coaxially and rotatably connected to the rotating shaft of the power motor (2) at the left end of the rack (1), a connecting sleeve (8) is fixedly connected to the right end of the output shaft (6) through a screw (7), matching teeth (9) matched with the one-way teeth (5) at the left end of the separating ring (4) are fixedly connected to the right end of the connecting sleeve (8), an output gear (10) is fixedly connected to the left end of, the friction plate (11) is braked by a brake device.

2. The gear transmission device according to claim 1, wherein the separating ring (4) is rotatably connected to the frame (1), a sliding block (12) is fixedly connected to the right end of the separating ring (4), a limiting ring (13) is fixedly connected to the outer circumference of the middle portion of the separating ring (4), and a plurality of unidirectional teeth (5) formed at the left end of the separating ring (4) are distributed along the axis and are uniformly spaced and matched with the right end of the connecting sleeve (8).

3. The gear change device according to claim 2, wherein the brake device comprises a support shaft (15) fixedly connected to the frame (1) and vertically arranged, a brake clip (16) is rotatably connected to the upper end of the support shaft (15), the brake clip (16) comprises a chuck extending backwards and a brake lever (17) extending forwards, the chuck of the brake clip (16) is located at the lower end of the brake disc and contacts with the side surface of the brake disc when the brake clip is closed, vertically arranged power shafts (18) are arranged at the front section of the brake lever (17), a brake block (19) is slidably and rotatably connected to each power shaft (18), transversely arranged threaded holes are formed in the brake block (19), one end of a bidirectional threaded rod (20) is rotatably connected to each threaded hole, and the bidirectional threaded rod (20) is controlled by a longitudinal motor (21) fixedly connected to the frame (1), the longitudinal motor (21) is controlled by a touch switch (22) which is fixedly connected to the frame (1) and is positioned on the right side of the limit ring (13) on the separating ring (4).

4. The gear transmission device according to claim 1, wherein the frame (1) comprises a bottom plate (23), the bottom plate (23) is fixedly connected with a plurality of vertically arranged and horizontally arranged vertical plates (24), each vertical plate (24) is provided with a horizontally arranged rotating hole (25), and the rotating holes (25) are coaxially arranged.

5. The gear transmission device according to claim 1, characterized in that the right end of the rotating sleeve (3) is fixedly connected to the rotating shaft of the power motor (2), the left end of the rotating sleeve (3) is provided with a sliding groove which is transversely arranged and matched with the right end of the rotating ring, and a pressure spring (26) is fixedly connected in the sliding groove.

6. The gear transmission device according to claim 1, wherein the right-end engagement teeth (9) of the connecting sleeve (8) are in one-way engagement with the one-way teeth (5) and are reversely separated from each other.

7. A gear change device according to claim 1, characterised in that the brake device is located on the frame (1) in front of the friction disc (11) when the output shaft (6) is rotating clockwise, and that the brake device clamping point is located below the brake disc.