CN215634785U

CN215634785U - Single-input double-output speed reducer with tensioning device

Info

Publication number: CN215634785U
Application number: CN202120932063.6U
Authority: CN
Inventors: 董红刚; 余运清
Original assignee: Wuhan Jinghua Speed Reducer Manufacturing Co ltd
Current assignee: Wuhan Jinghua Speed Reducer Manufacturing Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-01-25
Anticipated expiration: 2031-04-30

Abstract

The utility model provides a single-input double-output speed reducer with tensioning devices, which comprises a box body, wherein an input shaft is arranged at the upper end of the box body, the input shaft is arranged at one side in the box body, a first output shaft and a second output shaft with different torques are arranged at the other side of the box body, the box body drives the first output shaft and the second output shaft to rotate through a gear set, a plurality of tensioning devices are further arranged in the box body, and idler wheels with adjustable positions are arranged in the tensioning devices; two different torques and corresponding rotating speeds can be selected, and the rotating directions of the two output shafts are opposite, so that the two output shafts can be conveniently connected with an external transmission device at the same time; the reduction box is provided with a tensioning device, and the tensioning force is not required to be adjusted by an external device.

Description

Single-input double-output speed reducer with tensioning device

Technical Field

The utility model relates to the field of speed reducers, in particular to a single-input double-output speed reducer with a tensioning device.

Background

The speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing the speed and increasing the torque is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

When the speed reducer is used in a transmission mode such as a synchronous belt or a chain, the tensioning of the synchronous belt or the chain needs to be considered, and the traditional tensioning mode is that the position of the speed reducer is moved or the tensioning is carried out by an external adjusting device such as a tensioning adjusting device similar to CN 206785956U and used for a multi-chain speed reducer, but the traditional tensioning mode is troublesome, and the traditional tensioning mode is inconvenient to use when the speed reducer with a plurality of output shafts is encountered.

SUMMERY OF THE UTILITY MODEL

The utility model provides a single-input double-output speed reducer with a tensioning device, which solves the problem of tensioning adjustment when transmission modes such as a synchronous belt or a chain are matched with the speed reducer.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a single-input double-output speed reducer with a tensioning device comprises a box body, wherein an input shaft is arranged at the upper end of the box body, the input shaft is arranged on one side in the box body, a first output shaft and a second output shaft which have different torques are arranged on the other side of the box body, and the box body drives the first output shaft and the second output shaft to rotate through a gear set;

the box body is also provided with a plurality of tensioning devices, and rollers with adjustable positions are arranged in the tensioning devices.

In a preferred scheme, the tensioning device comprises a connecting seat, a rotatable rotating arm is arranged on the connecting seat, the rotating arm is rotatably sleeved with the end part of the roller, a limiting plunger is further arranged, one end of the limiting plunger is connected with the connecting seat, and the other end of the limiting plunger abuts against the rotating arm.

In the preferred scheme, spacing plunger includes the shell body, and shell body one end is equipped with rotatable ball, and the shell body other end is equipped with the pretension piece that can adjust from top to bottom, and ball one side still is equipped with the spring that is used for pushing up the ball tightly.

In a preferred scheme, a sliding block capable of sliding up and down is arranged between the spring and the ball.

In a preferred scheme, a jackscrew is further arranged, and one end of the jackscrew penetrates through the outer shell and abuts against the pre-tightening block.

In a preferred scheme, the knob is hinged with the connecting seat, and the hinged point is provided with a knob for locking the position of the rotating arm.

In a preferred scheme, the gear set comprises a first transmission set and a second transmission set, the input shaft drives the first output shaft to rotate through the first transmission set, and the input shaft drives the second output shaft to rotate through the second transmission set.

In a preferable scheme, the first transmission group comprises a first gear and a second gear, the first gear and the second gear are meshed to rotate, the second transmission group comprises a first gear shared with the first transmission group, the second transmission group further comprises a third gear, a fourth gear and a fifth gear, the first gear and the third gear are meshed to rotate, the fourth gear and the fifth gear are meshed to rotate, and the third gear and the fourth gear are connected through the same rotating shaft.

The utility model has the beneficial effects that: two different torques and corresponding rotating speeds can be selected, and the rotating directions of the two output shafts are opposite, so that the two output shafts can be conveniently connected with an external transmission device at the same time; the reduction gearbox is provided with the tensioning device, the tensioning force does not need to be adjusted by using an external device, particularly for the reduction gearbox with multiple output shafts, the tensioning degrees of the transmission of the two external devices cannot be adjusted simultaneously by moving the position of the reduction gearbox, and the single tensioning device is particularly convenient; the limiting plunger with the spring is arranged, so that the tightness change of the transmission device can be self-adapted, and the tensioning reliability is ensured.

Drawings

The utility model is further illustrated by the following figures and examples.

FIG. 1 is a schematic diagram A of the present invention.

Fig. 2 is a schematic diagram B of the present invention.

Fig. 3 is a block diagram of the gear set of the present invention.

Fig. 4 is a schematic view of the limit plunger of the present invention.

In the figure: a box body 1; an input shaft 2; a first output shaft 3; a second output shaft 4; a tension device 5; a roller 501; a rotating arm 502; a limiting plunger 503; an outer shell 504; a ball 505; a slider 506; a spring 507; a pre-tightening block 508; a jackscrew 509; a knob 510; a connecting socket 511; a first gear 6; a second gear 7; a third gear 8; a fourth gear 9; a fifth gear 10.

Detailed Description

As shown in fig. 1-4, a single-input dual-output speed reducer with a tensioning device comprises a box body 1, an input shaft 2 is arranged at the upper end of the box body 1, the input shaft 2 is arranged at one side of the box body 1, a first output shaft 3 and a second output shaft 4 with different torques are arranged at the other side of the box body 1, the first output shaft 3 and the second output shaft 4 rotate in opposite directions, the box body 1 drives the first output shaft 3 and the second output shaft 4 to rotate through a gear set, and two different torques can be simultaneously output for a user to select;

the box body 1 is further provided with a plurality of tensioning devices 5, idler wheels 501 with adjustable positions are arranged in the tensioning devices 5, the tensioning devices 5 are arranged near the input shaft 2 and the two output shafts, and after the chain wheel chain device or the synchronous belt device is installed, the input side transmission device and the output side transmission device can be tensioned by tightly pressing the chain or the synchronous belt through the adjusting idler wheels 501.

In a preferable scheme, the tensioning device 5 comprises a connecting seat 511, a rotatable rotating arm 502 is arranged on the connecting seat 511, the rotating arm 502 is rotatably sleeved with the end of a roller 501, a chain or a synchronous belt is movable, the roller 501 rolls against the rotating arm to reduce friction force, a limiting plunger 503 is further arranged, one end of the limiting plunger 503 is fixedly connected with the connecting seat 511 in a threaded manner, and the other end of the limiting plunger 503 abuts against the rotating arm 502 to limit the position of the rotating arm 502.

In the preferred scheme, spacing plunger 503 includes shell body 504, shell body 504 one end is equipped with rotatable ball 505, the shell body 504 other end is equipped with pretension piece 508 that can adjust from top to bottom, ball 505 one side still is equipped with the spring 507 who is used for pushing up ball 505, the shake can appear in chain or hold-in range motion process, the impact can be cushioned to spring 507, improve spacing plunger 503 stress, prevent that spacing plunger 503 vibration pine from taking off, in addition because chain and hold-in range are heated the expansion and contraction's influence length can change, the elasticity that spacing plunger 503 with spring can this kind of length change of self-adaptation brought changes.

In a preferred scheme, a sliding block 506 capable of sliding up and down is arranged between the spring 507 and the ball 505, so that the end part of the spring 507 is prevented from directly abutting against the ball 505 to deform the ball.

In a preferred scheme, a jackscrew 509 is further arranged, one end of the jackscrew 509 penetrates through the outer shell 504 to abut against the pre-tightening block 508, the pre-tightening block 508 is in threaded connection with the outer shell 504, the force of the spring 507 can be adjusted, and the jackscrew 509 locks the position of the pre-tightening block 508 after the adjustment is finished.

In a preferred scheme, a knob 510 is hinged with a connecting seat 511, the hinged point is provided with the knob 510 for locking the position of the rotating arm 502, and an auxiliary limiting plunger 503 locks the rotating arm 502 to further fix the position of the rotating arm 502.

In a preferred scheme, the gear set comprises a first transmission set and a second transmission set, the input shaft 2 drives the first output shaft 3 to rotate through the first transmission set, the input shaft 2 drives the second output shaft 4 to rotate through the second transmission set, and the first transmission set and the second transmission set output different torques and speeds.

In a preferable scheme, the first transmission set comprises a first gear 6 and a second gear 7, the diameter of the first gear 6 is smaller than that of the second gear 7, the first gear 6 and the second gear 7 are meshed to rotate, the second transmission set comprises a first gear 6 shared with the first transmission set, the second transmission set further comprises a third gear 8, a fourth gear 9 and a fifth gear 10, the diameter of the first gear 6 is smaller than that of the third gear 8, the first gear 6 and the third gear 8 are meshed to rotate, the fourth gear 9 and the fifth gear 10 are meshed to rotate, the diameter of the fourth gear 9 is smaller than that of the fifth gear 10, the third gear 8 and the fourth gear 9 are connected through the same rotating shaft, and the diameters of the third gear and the fourth gear 9 are the same.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a single input dual output speed reducer with overspeed device tensioner, characterized by: the gearbox comprises a box body (1), wherein an input shaft (2) is arranged at the upper end of the box body (1), the input shaft (2) is arranged on one side in the box body (1), a first output shaft (3) and a second output shaft (4) with different torques are arranged on the other side of the box body (1), and the box body (1) drives the first output shaft (3) and the second output shaft (4) to rotate through a gear set;

the box body (1) is also provided with a plurality of tensioning devices (5), and rollers (501) with adjustable positions are arranged in the tensioning devices (5).

2. The single-input double-output reducer with the tensioning device as claimed in claim 1, wherein: the tensioning device (5) comprises a connecting seat (511), a rotatable rotating arm (502) is arranged on the connecting seat (511), the rotating arm (502) is rotatably sleeved with the end part of the roller (501), a limiting plunger (503) is further arranged, one end of the limiting plunger (503) is connected with the connecting seat (511), and the other end of the limiting plunger (503) abuts against the rotating arm (502).

3. The single-input double-output reducer with the tensioning device as claimed in claim 2, wherein: the limiting plunger (503) comprises an outer shell (504), one end of the outer shell (504) is provided with a rotatable ball (505), the other end of the outer shell (504) is provided with a pre-tightening block (508) capable of being adjusted up and down, and one side of the ball (505) is further provided with a spring (507) used for tightly pushing the ball (505).

4. The single-input double-output reducer with the tensioning device as claimed in claim 3, wherein: a sliding block (506) capable of sliding up and down is arranged between the spring (507) and the ball (505).

5. The single-input double-output reducer with the tensioning device as claimed in claim 3, wherein: a jackscrew (509) is further arranged, and one end of the jackscrew (509) penetrates through the outer shell (504) and abuts against the pre-tightening block (508).

6. The single-input double-output reducer with the tensioning device as claimed in claim 2, wherein: the knob (510) is hinged with the connecting seat (511), and the hinged point is provided with the knob (510) which can lock the position of the rotating arm (502).

7. The single-input double-output reducer with the tensioning device as claimed in claim 1, wherein: the gear set comprises a first transmission set and a second transmission set, the input shaft (2) drives the first output shaft (3) to rotate through the first transmission set, and the input shaft (2) drives the second output shaft (4) to rotate through the second transmission set.

8. The single-input double-output reducer with the tensioning device as claimed in claim 7, wherein: first transmission group includes first gear (6) and second gear (7), first gear (6) and second gear (7) meshing rotation, second transmission group includes with first transmission group shared first gear (6), second transmission group still includes third gear (8), fourth gear (9) and fifth gear (10), first gear (6) and third gear (8) meshing rotation, fourth gear (9) and fifth gear (10) meshing rotation, third gear (8) and fourth gear (9) are connected through same pivot.