CN221237153U - Transmission structure for preventing reduction gearbox from being pulled apart - Google Patents
Transmission structure for preventing reduction gearbox from being pulled apart Download PDFInfo
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- CN221237153U CN221237153U CN202323052162.3U CN202323052162U CN221237153U CN 221237153 U CN221237153 U CN 221237153U CN 202323052162 U CN202323052162 U CN 202323052162U CN 221237153 U CN221237153 U CN 221237153U
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- reduction gearbox
- chain
- intermediate shaft
- sprocket
- transmission
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- 230000009467 reduction Effects 0.000 title claims abstract description 57
- 230000005540 biological transmission Effects 0.000 title claims abstract description 45
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- 208000032370 Secondary transmission Diseases 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a transmission structure for preventing a reduction gearbox from being pulled apart, which comprises a reduction gearbox, a secondary transmission device and a driving device, wherein the secondary transmission device comprises an intermediate shaft, chain wheels are arranged at two ends of the intermediate shaft, the chain wheels of the reduction gearbox are connected with the chain wheels at one end of the intermediate shaft through a first chain, and the chain wheels at the other end of the intermediate shaft are connected with the chain wheels of the driving device through a second chain; according to the transmission structure for preventing the reduction gearbox from being pulled apart, when the load of the load is large, the instant additional impact force of the load end of the driving device is buffered through the middle shaft, the reduction gearbox is prevented from being pulled apart through the breakage of the middle shaft, the loss is reduced, the transmission shaft is replaced in order during maintenance, and the maintenance loss and the maintenance time are reduced.
Description
Technical Field
The utility model belongs to the technical field of transmission structures, and particularly relates to a transmission mechanism for preventing a reduction gearbox from being pulled apart.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The reduction gearbox is generally referred to as a speed reducer, and is an independent component consisting of a gear transmission, a worm transmission and a gear-worm transmission enclosed in a rigid casing, and is commonly used as a reduction transmission device between a prime mover and a working machine, and plays a role in matching rotation speed and transmitting torque between the prime mover and the working machine or an actuating mechanism.
The reduction gearbox generally adopts gear transmission and chain transmission, and gear transmission's shortcoming is that the noise is big, vibration is big, and the wearing and tearing and the tired reduction that can lead to the gear life-span that produce because of the meshing simultaneously, and chain transmission's simple structure, installation cost is lower, still has advantages such as shock resistance is good, noise is low simultaneously. However, chain drives also have the following disadvantages: in the running process of the reduction gearbox of the chain transmission mechanism, the light person causes the chain to be broken by the instantaneous additional impact force of the load end, the heavy person causes the reduction gearbox to be pulled apart, and once the reduction gearbox is pulled apart, the production is greatly troublesome and lost.
In the prior art, aiming at the defects of a chain transmission mechanism, the chain transmission mechanism is generally improved to prevent chain breakage, such as the Chinese patent No. CN210916454U, a chain transmission mechanism of a ball conveyor is disclosed, and the chain breakage caused by serious stress is prevented by arranging a chain guide rail and a guide rail groove, so that the following defects exist: firstly, the arranged chain guide rail and guide rail groove need to occupy larger space; secondly, the chain can prevent from breaking, but when the chain is used as a transmission device of the speed reducer, when the chain is not broken, load can be applied to the speed reducer, the risk that the speed reducer is pulled to be broken exists at the moment, the loss caused by the pulling of the speed reducer is far greater than the breaking of the chain, and the difficulty and the cost of maintenance of the speed reducer are also far greater than the breaking of the chain.
Disclosure of utility model
The utility model aims to provide a transmission structure for preventing a reduction gearbox from being pulled apart, which can effectively prevent the reduction gearbox from being pulled apart by a load, and further reduce overload rejection of the reduction gearbox.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a transmission structure for preventing a gearbox from being pulled apart, including a gearbox, a secondary transmission device and a driving device, where the secondary transmission device includes an intermediate shaft, two ends of the intermediate shaft are provided with sprockets, the sprockets of the gearbox are connected with sprockets at one end of the intermediate shaft through a first chain, and sprockets at the other end of the intermediate shaft are connected with sprockets of the driving device through a second chain.
As a further technical scheme, the intermediate shaft is mounted on the bearing seat through a bearing.
As a further technical scheme, the two bearing seats are arranged and are respectively arranged at positions close to chain wheels at two ends of the middle shaft.
As a further technical scheme, the chain wheels at the two ends of the intermediate shaft are the same in size and the same in number of teeth as the chain wheels on the reduction gearbox.
As a further technical scheme, the driving device adopts a driving roller, and a chain wheel is arranged at the end part of the driving roller.
As a further technical scheme, the chain wheel on the reduction gearbox, the chain wheel on the intermediate shaft and the chain wheel on the driving device are mutually parallel.
As a further technical solution, the intermediate shaft is arranged between the reduction gearbox and the driving device.
As a further technical scheme, the length of the first chain is smaller than that of the second chain.
As a further technical scheme, the output shaft of the reduction gearbox is connected with the chain wheel through a coupler.
As a further technical scheme, the chain wheels at two ends of the intermediate shaft are arranged on the intermediate shaft in a spline mode.
The beneficial effects of the embodiment of the utility model are as follows:
According to the transmission structure for preventing the reduction gearbox from being pulled apart, when the load of the load is large, the instant additional impact force of the load end of the driving device is buffered through the middle shaft, the reduction gearbox is prevented from being pulled apart through the breakage of the middle shaft, the loss is reduced, the transmission shaft is replaced in order during maintenance, and the maintenance loss and the maintenance time are reduced.
According to the transmission structure for preventing the reduction gearbox from being pulled apart, the chain wheels at the two ends of the intermediate shaft are arranged on the intermediate shaft through the spline, so that the intermediate shaft and the chain wheels can be detachably connected, the replacement efficiency of the intermediate shaft is improved, and the maintenance time is shortened.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic diagram of the overall structure of the transmission structure for preventing the reduction gearbox from being pulled apart.
The schematic is used only as schematic;
1, a reduction gearbox; 2. a first sprocket; 3. a second sprocket; 4. a bearing; 5. a bearing seat; 6. a third sprocket; 7. a fourth sprocket; 8. driving the roller; 9. a first chain; 10. a second chain; 11. and an intermediate shaft.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. 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 utility model belongs.
Example 1
In an exemplary embodiment of the present utility model, a transmission structure for preventing a reduction gearbox from being pulled apart is provided, and is characterized by comprising a reduction gearbox, a secondary transmission device and a driving device, wherein the secondary transmission device comprises an intermediate shaft, two ends of the intermediate shaft are provided with chain wheels, the chain wheels of the reduction gearbox are connected with the chain wheels at one end of the intermediate shaft through a first chain, and the chain wheels at the other end of the intermediate shaft are connected with the chain wheels of the driving device through a second chain.
Specifically, as shown in fig. 1, an output shaft of a reduction gearbox 1 is connected with a first sprocket 2 through a coupling, the output shaft of the reduction gearbox 1 drives the first sprocket 2 to rotate, two ends of an intermediate shaft 11 are respectively provided with a second sprocket 3 and a third sprocket 6, the second sprocket 3 is connected with the first sprocket 2 through a second chain 10, a driving device adopts a driving roller as an example, the third sprocket 6 is connected with a fourth sprocket 7 on the driving roller 8 through a first chain 9, and transmission between the reduction gearbox output shaft and the driving roller is realized through the set intermediate shaft 11, the first chain 9 and the second chain 10.
Further, the intermediate shaft 11 is mounted on the bearing block 5 through the bearing 4, and the bearing block 5 is fixed on a bracket to provide stable support for the intermediate shaft 11.
In this embodiment, two bearing seats 5 are provided and are respectively installed at positions close to the sprockets at two ends of the intermediate shaft, and because the stress of the intermediate shaft 11 is mainly concentrated on the sprockets at two ends of the intermediate shaft 11, the strength of the whole intermediate shaft 11 can be effectively improved and the breaking times of the intermediate shaft 11 can be reduced by arranging two bearing seats at the positions of the sprockets at two ends.
In this embodiment, the first sprocket 2 on the reduction gearbox 1 and the second sprocket 3 and the third sprocket 6 on the intermediate shaft have the same size and the same number of teeth, so as to achieve accuracy of transmission precision, and avoid influence on transmission speed and transmission torque caused by setting of the intermediate shaft.
In this embodiment, the fourth sprocket 7 is installed at the end of the driving roller 8, and the fourth sprocket 7 drives the driving roller 8 to rotate, so as to realize transmission torque.
In this embodiment, the sprocket on the reduction gearbox 8, the sprocket on the intermediate shaft and the sprocket on the driving device are parallel to each other, and the intermediate shaft 11 is disposed between the reduction gearbox and the driving device, so that the space occupied by the whole mechanism can be reduced, and the use of a chain can be reduced.
In this embodiment, the length of the first chain is smaller than that of the second chain, which is more beneficial to torque transmission.
In this embodiment, the second sprocket 3 and the third sprocket 6 at two ends of the intermediate shaft 11 are mounted on the intermediate shaft 11 in a spline manner, so that the intermediate shaft 11 can be replaced conveniently when the intermediate shaft 11 breaks.
The driving structure for preventing the reduction gearbox from being pulled apart provided by the embodiment has the following working principle: the output end of the reduction gearbox 1 drives the second sprocket 3 of the intermediate shaft 11 to rotate through the second chain 10, then the intermediate shaft 11 and the third sprocket 6 on the intermediate shaft 11 synchronously rotate, the third sprocket 6 drives the fourth sprocket 7 at the end part of the driving roller 8 to rotate through the first chain 9, and then the driving roller 8 is driven to rotate to realize driving transmission.
When the load of the load is large, that is, when the load of the driving roller 8 is large, the first chain 9 is broken or the intermediate shaft 11 is broken, and because the position of the intermediate shaft 11 is fixed, the position between the first sprocket 2 on the reduction gearbox 1 and the second sprocket 3 on the intermediate shaft 11 is invariable all the time, so that the force applied by the second chain 10 is invariable, the second chain 10 is not broken, and the reduction gearbox 1 is not pulled apart.
The structure for preventing the reduction gearbox from being pulled apart can be used in most chain transmission, and has very good effect in protecting the reduction gearbox and preventing the reduction gearbox from being pulled apart by load, and effectively prevents overload rejection of the reduction gearbox.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a prevent transmission structure of reducing gear box stretch-break, its characterized in that, includes reducing gear box, secondary drive device and drive arrangement, secondary drive device includes the jackshaft, the both ends of jackshaft set up the sprocket, the sprocket of reducing gear box links to each other with the sprocket of jackshaft one end through first chain, the sprocket of jackshaft other end links to each other with drive arrangement's sprocket through the second chain.
2. A transmission for preventing pull-apart of a reduction gearbox according to claim 1, wherein the intermediate shaft is mounted on the bearing housing by means of bearings.
3. The transmission structure for preventing pull-apart of reduction gearbox according to claim 2, wherein two bearing seats are provided, which are respectively installed at positions near the sprockets at both ends of the intermediate shaft.
4. The transmission structure for preventing pull-apart of a reduction gearbox according to claim 1, wherein the chain wheels at two ends of the intermediate shaft have the same size and the same number of teeth as the chain wheels on the reduction gearbox.
5. A transmission structure for preventing a reduction gearbox from being broken according to claim 1, wherein the driving device adopts a driving roller, and a chain wheel is arranged at the end part of the driving roller.
6. A transmission for preventing cracking of a reduction gearbox according to claim 1, wherein the sprocket on the reduction gearbox, the sprocket on the intermediate shaft and the sprocket on the drive means are parallel to each other.
7. A transmission for preventing pull-apart of a reduction gearbox according to claim 6, wherein said intermediate shaft is disposed between the reduction gearbox and the drive means.
8. The transmission for preventing drag cracking of a reduction gear box of claim 1, wherein the length of the first chain is less than the length of the second chain.
9. The transmission structure for preventing pull-apart of a reduction gearbox according to claim 1, wherein an output shaft of the reduction gearbox is connected to a sprocket through a coupling.
10. The transmission structure for preventing pull-apart of a reduction gearbox according to claim 1, wherein the sprockets at both ends of the intermediate shaft are spline-mounted on the intermediate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323052162.3U CN221237153U (en) | 2023-11-10 | 2023-11-10 | Transmission structure for preventing reduction gearbox from being pulled apart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323052162.3U CN221237153U (en) | 2023-11-10 | 2023-11-10 | Transmission structure for preventing reduction gearbox from being pulled apart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221237153U true CN221237153U (en) | 2024-06-28 |
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ID=91595567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323052162.3U Active CN221237153U (en) | 2023-11-10 | 2023-11-10 | Transmission structure for preventing reduction gearbox from being pulled apart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221237153U (en) |
-
2023
- 2023-11-10 CN CN202323052162.3U patent/CN221237153U/en active Active
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