CN220910358U

CN220910358U - Crank speed reducer

Info

Publication number: CN220910358U
Application number: CN202322955671.0U
Authority: CN
Inventors: 叶茂行
Original assignee: Hangzhou Yiyide Transmission Equipment Co ltd
Current assignee: Hangzhou Yiyide Transmission Equipment Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-05-07
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses a crank speed reducer, which comprises a box body and a connecting box body, wherein a flange is arranged at the end part of the connecting box body, a rotating shaft is rotatably arranged in the connecting box body and the box body, one side of the rotating shaft is provided with an output rotating shaft perpendicular to the rotating shaft, and the output rotating shaft is in rotating fit connection with the inside of the box body.

Description

Crank speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a crank speed reducer.

Background

In the existing speed reducer, the mode adopted is that gear transmission or worm and gear transmission is carried out, or the combination of the gear transmission and the worm and the gear transmission is carried out, a crank is arranged at a general output end, the crank is driven to rotate when the output end rotates, the existing speed reducer has more defects, for example, the existing speed reducer is complex when a motor is connected and a load end is connected, the installation of people is inconvenient, and a great deal of researches are carried out on the people;

For example: the Chinese patent document with the application number of CN201620978763. X discloses a crankshaft speed reducer, which comprises a box body, a worm wheel, a worm and an output shaft, wherein the output shaft is a hollow shaft, the upper end of the output shaft is encapsulated by an oil jacket and an oil seal, the lower end of the output shaft is respectively connected with the inner wall and the outer wall of the box body in a penetrating manner through two plane ball bearings, a copper sleeve or an oil jacket connected to the box body is arranged between the output shaft and the box body between the two plane ball bearings, and a positioning nut with a clamp spring is arranged between the upper end of the worm wheel and the oil jacket.

Therefore, in the prior art, the speed reducer is troublesome to connect with the input end or the output end, and can not realize stable and convenient connection.

Disclosure of utility model

The technical problem to be solved by the utility model is to provide a crank speed reducer which can solve the problems in the prior art.

The utility model is realized by the following technical scheme: the utility model relates to a crank speed reducer, which comprises a box body and a connecting box body, wherein a flange is arranged at the end part of the connecting box body, a rotating shaft is rotatably arranged in the connecting box body and the box body, one side of the rotating shaft is provided with an output rotating shaft perpendicular to the rotating shaft, and the output rotating shaft is in rotating fit connection with the interior of the box body.

Further technical scheme, connection pad one side is provided with the crank arm, crank arm one side is provided with the connection casing, be provided with the axle sleeve in the crank arm, be provided with the connecting screw in the connection casing, the connecting screw passes the axle sleeve.

According to a further technical scheme, the input end connecting assembly comprises a threaded hole arranged in the rotating shaft.

According to a further technical scheme, a rotating bearing is arranged in the flange plate, and a first clamping ring is arranged on one side of the rotating bearing.

According to a further technical scheme, a first sealing cover is arranged on one side of the first clamping ring, and the outer side part of one end of the rotating shaft is sealed by the first sealing cover.

Further technical scheme, drive assembly including set up in the worm wheel of axis of rotation surface, worm wheel one side is provided with the worm, and worm and the interior connecting block normal running fit in the box are connected, the worm tip is provided with driven gear, driven gear one side meshing is provided with the driving gear, the driving gear with axis of rotation fixed fit is connected.

Further technical scheme, output coupling assembling including set up in the fixed plate in the shaft hole, be provided with locking bolt in the fixed plate.

According to a further technical scheme, a second clamping ring is arranged on one side of the fixing plate.

According to a further technical scheme, a gasket is arranged between the locking bolt and the fixing plate.

According to a further technical scheme, the end part of the shaft hole is provided with a second sealing cover.

The beneficial effects of the utility model are as follows:

1. The speed reducer utilizes the input end connecting assembly and the output end connecting assembly, can be stably and rapidly connected with the input end motor and the rotating shaft of the output end load, and can realize the transmission mode of the crank connecting rod by utilizing the connecting disc, the crank rod and the connecting shell to be connected with the connecting rod in the external space.

2. The design in the input coupling assembling can make the rotation bearing rotate steadily and accurately when making axis of rotation and motor shaft connection, the snap ring can with the axis of rotation bearing and closing cap separate, the closing cap can play dustproof effect, and the screw hole can be convenient carry out the connection transmission with the motor shaft.

3. The structural design of the clamping ring, the fixing plate, the sealing cover, the locking bolt and the gasket in the rotating shaft is utilized, so that the output end shaft and the shaft hole are connected through the key slot and the key when the output end is connected with a load, the rotating shaft is more stable in transmission, and the installation is more convenient.

4. The output rotating shaft is arranged on the outer side of the box body, one side of the end cover is fixedly matched and connected with the connecting disc through a bolt, a crank rod is arranged on one side of the connecting disc, one end of the crank rod is connected with the connecting shell through a connecting screw rod and a shaft sleeve, and the connecting shell is connected with an external space connecting rod to realize operation of the crank connecting rod.

Drawings

For ease of illustration, the utility model is described in detail by the following specific examples and figures.

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

FIG. 2 is a schematic top view of the speed reducer of FIG. 1;

FIG. 3 is a schematic view, partially in section, of the speed reducer of FIG. 2;

FIG. 4 is a left side schematic view of the speed reducer of FIG. 2;

FIG. 5 is a schematic diagram of the internal transmission of the speed reducer of FIG. 1;

FIG. 6 is a schematic structural diagram of the output shaft in FIG. 2;

In the drawing, a connection disc 11, a flange 13, a connection box 14, a box 15, a rotation shaft 21, a screw hole 22, a rotation bearing 23, a first snap ring 24, a first cover 25, a connection screw 31, a shaft sleeve 32, a shaft hole 41, a worm wheel 42, a worm 43, a driven gear 44, a driving gear 45, an internal connection block 46, a washer 51, a lock bolt 52, a second cover 53, a fixing plate 54, a second snap ring 55, an output rotation shaft 61, a crank lever 62, and a connection housing 63.

Detailed Description

The present utility model will be described in detail with reference to fig. 1 to 6, and for convenience of description, the following orientations will be defined as follows: the crank speed reducer comprises a box body 15, wherein one side of the box body 15 is provided with a connecting box body 14, one side of the connecting box body 14 is provided with a flange 13, the top of the box body 15 is provided with a connecting disc 11, a rotating shaft 21 is rotatably arranged in the connecting box body 14, the rotating shaft 21 is rotatably inserted into the box body 15, an output rotating shaft 61 is rotatably arranged in the box body 15, the connecting disc 11 is fixedly matched and connected with the output rotating shaft 61, and therefore, one side of the flange 13 is connected with a motor, the motor is connected with the rotating shaft 21 through an input end connecting assembly, the rotating shaft 21 rotates through a transmission assembly, and the rotating shaft 21 drives the output rotating shaft 61 to rotate through the output end connecting assembly, so that the output rotating shaft 61 drives a load to operate.

The connecting disc 11 is provided with the crank rod 62 on one side, the connecting shell 63 is arranged on one side of the crank rod 62, the shaft sleeve 32 is arranged in the crank rod 62, the connecting screw 31 is arranged in the connecting shell 63, the connecting screw 31 penetrates through the shaft sleeve 32, the other end of the connecting screw 31 is locked and fixed with the connecting screw 31 through a nut, the connecting rod can be rotated on one side of the connecting shell 63, the connecting rod is connected with other structures through the connecting rod, and the movement mode of the crank connecting rod can be realized.

Advantageously, the input end connecting assembly includes a threaded hole 22 disposed in the rotating shaft 21, and the screw portion at the end of the output shaft of the motor is inserted into the threaded hole 22 to be in threaded fit connection, so that the motor and the rotating shaft 21 can coaxially rotate, a rotating bearing 23 is disposed in the flange 13, a first clamping ring 24 is disposed on one side of the rotating bearing 23, a first sealing cover 25 is disposed on one side of the first clamping ring 24, the first sealing cover 25 seals an outer portion at one end of the rotating shaft 21, and the first clamping ring 24 plays a role of separating the rotating bearing 23 and the first sealing cover 25.

Advantageously, the transmission assembly comprises a worm wheel 42 arranged on the outer surface of the rotation shaft 21, a worm 43 is arranged on one side of the worm wheel 42, the worm 43 is in rotary fit connection with an internal connection block 46 in the box 15, a driven gear 44 is arranged at the end part of the worm 43, a driving gear 45 is arranged on one side of the driven gear 44 in a meshed manner, and the driving gear 45 is fixedly matched and connected with the rotation shaft 21, so that the rotation shaft 21 is rotated by the rotation shaft 21 through the driving gear 45, the driven gear 44, a fixing plate 54 and the worm wheel 42.

The output rotating shaft 61 is arranged in the box body 15 in a rotating mode, two ends of the output rotating shaft 61 are exposed out of the box body 15, the output end connecting assembly comprises a fixing plate 54 arranged in the shaft hole 41, a second clamping ring 55 is arranged on one side of the fixing plate 54, a locking bolt 52 is arranged in the fixing plate 54, a gasket 51 is arranged between the locking bolt 52 and the fixing plate 54, the gasket 51 is sleeved on the outer surface of the locking bolt 52, a shaft of an output end extends into the shaft hole 41, the worm wheel 42 is connected with the shaft of the output end in a threaded fit mode, the shaft of the output end can rotate, and a load rotates.

Advantageously, the end of the shaft hole 41 is provided with a second cover 53, the second cover 53 closing the shaft hole 41, the second cover 53 being provided on the side close to the locking bolt 52.

The speed reducer utilizes the input end connecting assembly and the output end connecting assembly, can be stably and quickly connected with the input end motor and the rotating shaft of the output end load, and can realize the transmission mode of a crank connecting rod by utilizing the connecting disc 11, the threaded hole 22 and the rotating bearing 23 to be connected with a connecting rod in an external space.

When the input end motor is connected, the motor is fixedly arranged on the flange 13, so that a threaded rod on the motor extends into the threaded hole 22 to be locked and fixed through threads, an output shaft of the motor can drive the rotating shaft 21 to rotate after rotating, and the rotating bearing 23 plays a role in stabilizing the rotation of the rotating shaft 21.

The rotation shaft 21 is meshed with the driven gear 44 through the driving gear 45, and the worm 43 drives the worm wheel 42 to rotate when the worm 43 is connected with the driven gear 44 in a power mode, so that the output rotation shaft 61 can drive the connecting disc 11, the crank rod 62 and the connecting shell 63 to swing after rotating, and can be connected with a rotation shaft of an output end load through the shaft hole 41 in the output rotation shaft 61 to enable the load to rotate correspondingly.

When the load end is mounted, the locking bolt 52 passes through the fixing plate 54, the gasket 51 is arranged between the locking bolt 52 and the fixing plate 54, the locking bolt 52 and the rotating shaft of the load end are in threaded locking fixation, the rotating shaft of the load end and the shaft hole 41 are connected through a key groove and a key, the rotating shaft 21 and the rotating shaft of the load end are in power connection rotation, and the second sealing cover 53 plays a role in sealing and dustproof the shaft hole 41.

The output rotating shaft 61 is provided with an end cover outside the box body 15, one side of the end cover is fixedly matched and connected with the connecting disc 11 through bolts, one side of the connecting disc 11 is provided with a crank rod 62, one end of the crank rod 62 is connected with the connecting shell 63 through the connecting screw 31 and the shaft sleeve 32, and the rotating bearing 23 is connected with an external space connecting rod to realize the operation of the crank connecting rod.

The above is merely a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that do not undergo the inventive work should be covered in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a crank speed reducer, includes box (15) and connects box (14), it is provided with ring flange (13) to connect box (14) tip, it is provided with axis of rotation (21) to connect box (14) and box (15) internal rotation, axis of rotation (21) one side is provided with rather than vertically output pivot (61), output pivot (61) with the inside normal running fit of box (15) is connected, a serial communication port, be provided with the input in axis of rotation (21) and connect, be provided with drive assembly in box (15), be provided with output coupling assembling in output pivot (61) shaft hole (41) in still including output pivot (61).

2. A crank speed reducer according to claim 1, characterized in that: connecting disc (11) are arranged at the top of the box body (15), a crank rod (62) is arranged on one side of the connecting disc (11), a connecting shell (63) is arranged on one side of the crank rod (62), a shaft sleeve (32) is arranged in the crank rod (62), a connecting screw rod (31) is arranged in the connecting shell (63), and the connecting screw rod (31) penetrates through the shaft sleeve (32).

3. A crank speed reducer according to claim 1, characterized in that: the input end connecting assembly comprises a threaded hole (22) arranged in the rotating shaft (21).

4. A crank speed reducer according to claim 1, characterized in that: a rotating bearing (23) is arranged in the flange plate (13), a first clamping ring (24) is arranged on one side of the rotating bearing (23), and the rotating shaft (21) penetrates through the rotating bearing (23).

5. A crank speed reducer according to claim 4, characterized in that: a first sealing cover (25) is arranged on one side of the first clamping ring (24), and the first sealing cover (25) seals the outer part of one end of the rotating shaft (21).

6. A crank speed reducer according to claim 1, characterized in that: the transmission assembly comprises a worm wheel (42) arranged on the outer surface of the rotating shaft (21), a worm (43) is arranged on one side of the worm wheel (42), the worm (43) is connected with an internal connecting block (46) in the box body (15) in a rotating fit mode, a driven gear (44) is arranged at the end portion of the worm (43), a driving gear (45) is meshed on one side of the driven gear (44), and the driving gear (45) is fixedly connected with the rotating shaft (21) in a matching mode.

7. A crank speed reducer according to any of claims 1-6, characterized in that: the output end connecting assembly comprises a fixing plate (54) arranged in the shaft hole (41), and a locking bolt (52) is arranged in the fixing plate (54).

8. A crank speed reducer according to claim 7, characterized in that: a second clamping ring (55) is arranged on one side of the fixing plate (54).

9. A crank speed reducer according to claim 7, characterized in that: a washer (51) is arranged between the locking bolt (52) and the fixing plate (54).

10. A crank speed reducer according to claim 7, characterized in that: the end of the shaft hole (41) is provided with a second sealing cover (53).