CN111306265A

CN111306265A - Transmission device

Info

Publication number: CN111306265A
Application number: CN202010108219.9A
Authority: CN
Inventors: 丘永坤; 史继新; 周海民
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-06-19

Abstract

The invention provides a transmission device, which comprises a rack and a driven wheel, and further comprises: the driven wheel is arranged on the moving assembly so that the moving assembly drives the driven wheel to move; wherein, the movable assembly comprises a bottom plate and a cushion block, the bottom plate is connected with the frame, the cushion block is arranged on the bottom plate, and the driven wheel is connected with the cushion block. The transmission device solves the problem that the tensioning mechanism of the transmission device in the prior art is inconvenient to adjust.

Description

Transmission device

Technical Field

The invention relates to the field of mechanical transmission, in particular to a transmission device.

Background

At present, the traditional tensioning device mostly presses the tensioning wheel on the loose edge side to realize tensioning.

However, the above method needs to loosen the tension wheel during the tension operation, and the adjustment is inconvenient; when the transmission device with the larger driven wheel is tensioned, the tensioning device is easy to loosen due to the large tensioning force, and the tensioning effect cannot be achieved; the arrangement of the tensioning device at the loose edge occupies a certain space, and is not suitable for a device with compact arrangement of the internal space of the mechanism.

Disclosure of Invention

The invention mainly aims to provide a transmission device to solve the problem that a tensioning mechanism of the transmission device in the prior art is inconvenient to adjust.

In order to achieve the above object, the present invention provides a transmission device, including a frame and a driven wheel, the transmission device further including: the driven wheel is arranged on the moving assembly so that the moving assembly drives the driven wheel to move; wherein, the movable assembly comprises a bottom plate and a cushion block, the bottom plate is connected with the frame, the cushion block is arranged on the bottom plate, and the driven wheel is connected with the cushion block.

Further, the transmission device further comprises: the driving assembly is arranged on the rack and connected with the moving assembly so as to drive the moving assembly to move.

Further, the drive assembly includes: the screw rod is movably arranged and is connected with the moving component so as to drive the moving component to move; the fixed block is arranged on the rack; the screw rod is inserted on the fixed block and is in threaded connection with the fixed block, so that the screw rod moves relative to the fixed block when the screw rod is rotated.

Further, the moving assembly further comprises a moving block, the moving block is arranged on the bottom plate, and the screw rod is connected with the moving block.

Furthermore, the moving block is provided with a first clamping part, the screw rod is provided with a second clamping part matched with the first clamping part, and the moving block and the screw rod are connected in a matched clamping mode through the first clamping part and the second clamping part.

Furthermore, the first clamping part is a clamping groove, and the second clamping part is a clamping bulge.

Furthermore, the first clamping portion is a T-shaped groove, and the second clamping portion is of a stepped columnar structure matched with the T-shaped groove.

Further, the moving block and the cushion block are arranged on two opposite sides of the bottom plate.

Further, the cushion block is of an annular structure.

Further, the transmission device further comprises: the guide part is arranged on the rack and provided with a guide groove, the bottom plate is matched with the guide groove, and the bottom plate is clamped in the guide groove and moves along the extending direction of the guide groove.

The transmission device comprises a rack, a driven wheel and a moving assembly, wherein the moving assembly comprises a bottom plate and a cushion block, the moving assembly is connected with the rack and movably arranged relative to the rack, and the driven wheel is connected with the cushion block so that the moving assembly drives the driven wheel to move. The position of the driven wheel can be adjusted by adjusting the position of the moving assembly, so that the distance between the driven wheel and the driving wheel is adjusted, and a transmission belt or a transmission chain sleeved on the driven wheel and the driving wheel is tensioned; the transmission device is convenient to adjust; even the driven wheel with larger size is tensioned, the driven wheel is not easy to loosen, and the tensioning effect is better; and does not occupy redundant space, and is also suitable for devices with requirements on compact internal space layout.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural diagram of an embodiment of a transmission according to the present invention;

FIG. 2 shows a schematic of the structure of the moving and driving assemblies of the transmission according to the present invention;

FIG. 3 shows a side view of the moving assembly and the drive assembly of FIG. 2;

FIG. 4 shows a top view of the moving assembly and the drive assembly of FIG. 2;

figure 5 shows a schematic structural view of the mobile mass of the transmission according to the invention;

fig. 6 shows a schematic view of the screw of the transmission according to the invention.

Wherein the figures include the following reference numerals:

10. a frame; 20. a driven wheel; 30. a moving assembly; 31. a moving block; 311. a first engaging portion; 32. a base plate; 33. cushion blocks; 40. a drive assembly; 41. a screw; 411. a second engaging portion; 42. a fixed block; 50. a guide portion.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The invention provides a transmission device, please refer to fig. 1 to 6, comprising a frame 10 and a driven wheel 20, the transmission device further comprising: the moving assembly 30 is connected with the frame 10 and movably arranged relative to the frame 10, and the driven wheel 20 is arranged on the moving assembly 30, so that the moving assembly 30 drives the driven wheel 20 to move; the moving assembly 30 comprises a bottom plate 32 and a cushion block 33, the bottom plate 32 is connected with the frame 10, the cushion block 33 is arranged on the bottom plate 32, and the driven wheel 20 is connected with the cushion block 33.

The transmission device comprises a frame 10, a driven wheel 20 and a moving assembly 30, wherein the moving assembly 30 comprises a bottom plate 32 and a cushion block 33, the moving assembly 30 is connected with the frame 10 and movably arranged relative to the frame 10, and the driven wheel 20 is connected with the cushion block 33 so that the moving assembly 30 drives the driven wheel 20 to move. In such a configuration, the position of the driven wheel 20 can be adjusted by adjusting the position of the moving assembly 30, so as to adjust the distance between the driven wheel and the driving wheel, and tension the transmission belt or the transmission chain sleeved on the driven wheel and the driving wheel; the transmission device is convenient to adjust; even the driven wheel with larger size is tensioned, the driven wheel is not easy to loosen, and the tensioning effect is better; and does not occupy redundant space, and is also suitable for devices with requirements on compact internal space layout.

In order to realize the movement of the moving component 30, the transmission device further comprises a driving component 40, the driving component 40 is arranged on the machine frame 10, and the driving component 40 is connected with the moving component 30 to drive the moving component 30 to move.

In particular, the driving assembly 40 includes: the screw rod 41 is movably arranged, and the screw rod 41 is connected with the moving component 30 so as to drive the moving component 30 to move; the fixed block 42 is fixedly arranged on the frame 10; the screw 41 is inserted on the fixing block 42 and is threadedly coupled with the fixing block 42 to move the screw 41 relative to the fixing block 42 when the screw 41 is rotated. Wherein the screw 41 moves in its extension direction. The fixed end of the driven wheel is directly tensioned, so that space resources are saved, the tensioning wheel is not required to be disassembled, tightness can be adjusted by screwing the screw rod, and the adjustment is more convenient and fast.

In one embodiment, a hand wheel is provided on the screw 41. In another embodiment, screw 41 is driven by a motor. Both arrangements facilitate rotation of the screw 41.

In the present embodiment, the moving assembly 30 further includes a moving block 31, the moving block 31 is disposed on the bottom plate 32, and the screw 41 is connected to the moving block 31.

Specifically, the moving block 31 is connected to the base plate 32 by bolts.

In specific implementation, the moving block 31 has a first engaging portion 311, the screw 41 has a second engaging portion 411 adapted to the first engaging portion 311, and the moving block 31 and the screw 41 are engaged and connected through the first engaging portion 311 and the second engaging portion 411.

Preferably, the first engaging portion 311 is a slot, and the second engaging portion 411 is an engaging protrusion.

Preferably, the first engaging portion 311 is a T-shaped groove, and the second engaging portion 411 is a stepped columnar structure adapted to the T-shaped groove. The T-shaped groove extends in a direction perpendicular to the moving direction of the screw 41, and the cross section of the T-shaped groove is T-shaped in the extending direction of the T-shaped groove. Specifically, the second catching portion 411 is position-adjustably provided in the first catching portion 311 in the extending direction of the first catching portion 311. Such an arrangement facilitates mounting of the screw 41, facilitating adjustment of the mounting position of the screw 41.

Preferably, the moving block 31 and the spacer 33 are disposed on opposite sides of the base plate 32. This arrangement facilitates the operation of the screw 41 for rotation.

In the present embodiment, the pad 33 has a ring structure. Specifically, a slewing bearing is mounted on the spacer 33, and a driven wheel is connected to the slewing bearing and rotatably provided.

Preferably, the spacer 33 has a circular ring structure. The arrangement is convenient to be connected with the slewing bearing, and the occupied space is small.

In this embodiment, the transmission device further includes a guiding portion 50 disposed on the frame 10, the guiding portion 50 has a guiding slot, the bottom plate 32 is adapted to the guiding slot, and the bottom plate 32 is clamped in the guiding slot and moves along the extending direction of the guiding slot. The guide portion 50 is fixedly disposed on the frame 10.

Specifically, the guide portions 50 are two, and the two guide portions 50 are disposed on opposite sides of the bottom plate 32.

In one embodiment, the base plate 32 is secured to the frame 10 by fasteners to lock the actuator after the actuator has been moved to the proper tensioning position.

The invention solves the following technical problems: the transmission tensioning device is not convenient and fast to adjust and tension; when the transmission device with larger driven wheel size is tensioned, the tensioning device is easy to loosen due to large tensioning force; the traditional tensioning device occupies space and wastes space resources.

The transmission device provided by the invention has the advantages that the movable block is pulled by rotating the screw rod to drive the bottom plate to move along the guide part, so that the tensioning adjustment effect is achieved, and the transmission device is locked by the fixed bottom plate 32 after the movable block moves to a proper tensioning position; the adjustment is more convenient, and the space utilization rate is higher.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Transmission comprising a frame (10) and a driven wheel (20), characterized in that it further comprises:

the moving assembly (30) is connected with the rack (10) and movably arranged relative to the rack (10), and the driven wheel (20) is arranged on the moving assembly (30) so that the moving assembly (30) drives the driven wheel (20) to move;

the moving assembly (30) comprises a bottom plate (32) and a cushion block (33), the bottom plate (32) is connected with the rack (10), the cushion block (33) is arranged on the bottom plate (32), and the driven wheel (20) is connected with the cushion block (33).

2. The transmission of claim 1, further comprising:

the driving assembly (40) is arranged on the rack (10), and the driving assembly (40) is connected with the moving assembly (30) to drive the moving assembly (30) to move.

3. Transmission according to claim 2, characterized in that said drive assembly (40) comprises:

the screw rod (41), the screw rod (41) is movably arranged, the screw rod (41) is connected with the moving component (30) to drive the moving component (30) to move;

the fixed block (42) is arranged on the rack (10); the screw rod (41) is inserted on the fixing block (42) and is in threaded connection with the fixing block (42), so that the screw rod (41) moves relative to the fixing block (42) when the screw rod (41) is rotated.

4. The transmission according to claim 3, characterized in that said moving assembly (30) further comprises a moving block (31), said moving block (31) being arranged on said base plate (32), said threaded rod (41) being connected with said moving block (31).

5. The transmission device according to claim 4, wherein the moving block (31) has a first engaging portion (311), the screw rod (41) has a second engaging portion (411) adapted to the first engaging portion (311), and the moving block (31) and the screw rod (41) are engaged and engaged with each other through the first engaging portion (311) and the second engaging portion (411).

6. The transmission according to claim 5, wherein the first engaging portion (311) is a slot and the second engaging portion (411) is an engaging protrusion.

7. The transmission device according to claim 6, wherein the first engaging portion (311) is a T-shaped groove, and the second engaging portion (411) is a stepped cylindrical structure adapted to the T-shaped groove.

8. Transmission according to claim 4, characterized in that the moving block (31) and the spacer block (33) are arranged on opposite sides of the base plate (32).

9. Transmission according to any of claims 1 to 8, characterized in that the spacer (33) is of annular construction.

10. The transmission of any one of claims 1 to 8, further comprising:

the guide part (50) is arranged on the rack (10), the guide part (50) is provided with a guide groove, the bottom plate (32) is matched with the guide groove, and the bottom plate (32) is clamped in the guide groove and moves along the extending direction of the guide groove.