CN217806876U - Tensioning device for bidirectional chain - Google Patents
Tensioning device for bidirectional chain Download PDFInfo
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- CN217806876U CN217806876U CN202222016880.4U CN202222016880U CN217806876U CN 217806876 U CN217806876 U CN 217806876U CN 202222016880 U CN202222016880 U CN 202222016880U CN 217806876 U CN217806876 U CN 217806876U
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- chain
- tensioning
- tension
- chain wheel
- sprocket
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Abstract
The utility model discloses a two-way chain tensioning device, which comprises a mounting plate (1), a first chain wheel (2) and a second chain wheel (3) which are arranged on the mounting plate (1), and a chain (4) which is used for connecting the first chain wheel (2) and the second chain wheel (3), wherein a two-way cylinder (5) which is positioned on the mounting plate (1) is arranged between the first chain wheel (2) and the second chain wheel (3); two ends of the bidirectional cylinder (5) are respectively provided with a tension spring (6), the end of each tension spring (6) is provided with a tension linkage seat (7), and each tension linkage seat (7) is provided with two symmetrically distributed tension chain wheels (8); the chain (4) is arranged between two tensioning sprockets (8). The utility model discloses not only can improve tensioning work efficiency, still have tensioning effectual, structural stability is high, long service life, application range are wide and the high advantage of stability in use.
Description
Technical Field
The utility model relates to a chain drive auxiliary device, especially a overspeed device tensioner for two-way chain for bicycle.
Background
For some bicycles or electric vehicles with rear goods shelves, the distance from the shaft to the center of the rear wheel is increased by thirty percent compared with that of the common bicycles or electric vehicles, so that the length of the chain is increased in a chain transmission mode, the weight of the chain is increased along with the increase of the length of the chain, the phenomenon that the chain is easy to fall off in the using process is caused, and the tension of the chain is adjusted periodically; at present, the mode that common rate of tension regulation mode adopted manual regulation more for the chain not only need judge the rate of adjustment with the help of different instruments in the adjustment, still need continuous artifical pulling chain, and the operation is got up very complicacy, need consume a large amount of time and labour, and the regulation work efficiency of whole rate of tension is lower. Therefore, the problem of low working efficiency exists in the process of adjusting the chain tension of the existing bicycle or electric vehicle with a rear goods shelf.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-way overspeed device tensioner for chain. The utility model has the advantages of high work efficiency.
The technical scheme of the utility model: a tensioning device for a bidirectional chain comprises a mounting plate, a first chain wheel, a second chain wheel and a chain, wherein the first chain wheel and the second chain wheel are arranged on the mounting plate, the chain is used for connecting the first chain wheel and the second chain wheel, and a bidirectional cylinder is arranged on the mounting plate between the first chain wheel and the second chain wheel; tension springs are arranged at two end parts of the bidirectional cylinder, a tensioning linkage seat is arranged at the end part of each tension spring, and two symmetrically distributed tensioning chain wheels are arranged on each tensioning linkage seat; the chain is arranged between the two tensioning chain wheels; the two-way cylinder is started to drive the tensioning chain wheels on the two sides to be away from each other, and the two tensioning chain wheels are matched to penetrate between the two tensioning chain wheels, so that automatic tension degree adjustment work of the chains from the two sides can be achieved, and the work efficiency is improved.
In the tensioning device for the bidirectional chain, one side of the bidirectional cylinder is provided with a U-shaped supporting seat, and the middle part of the supporting seat is provided with a supporting shaft; a guide piece is rotatably arranged on one side surface of each tensioning linkage seat, and one end part of each guide piece is rotatably arranged on the supporting shaft; utilize guide and back shaft to support the tensioning linkage seat, reduce the pressure to two-way cylinder, further prolonged life.
In the tensioning device for the bidirectional chain, the tensioning linkage seat is provided with an adjusting waist hole at a position corresponding to each tensioning sprocket, and each adjusting waist hole is provided with an installation column in a sliding manner; the two end parts of the mounting column are respectively provided with a first locking part and a second locking part, and the first locking part is arranged on the bottom surface of the tensioning linkage seat; the tensioning chain wheel is sleeved on the mounting column, and the tensioning chain wheel is arranged between the second locking piece and the top surface of the tensioning linkage seat; with tensioning sprocket through erection column slidable mounting on adjusting the waist hole to make two distances of adjusting between the waist hole can adjust, and then can be applicable to going on of different chain tensioning work, enlarged application range.
In the aforementioned tension device for a bidirectional chain, the diameter of the second locker is larger than the diameter of the tension sprocket.
In the aforementioned two-way chain tensioning device, the first sprocket, the second sprocket and all the tensioning sprockets are disposed on the same plane.
Compared with the prior art, the utility model discloses improved current chain overspeed device tensioner for electric motor car with rearmounted goods shelves, through be provided with two-way cylinder between first sprocket and second sprocket, the both ends of two-way cylinder are all installed and are tensioned the linkage seat, and set up tensioning sprocket on the tensioning linkage seat that corresponds, make can drive the tensioning sprocket of both sides after two-way cylinder starts to keep away from each other, two of deuterogamies are passed between two tensioning sprockets, thereby can realize realizing the automatic rate of tension adjustment work to the chain from both sides, improved work efficiency; by arranging the tension spring, the tension spring is connected with the bidirectional cylinder and the tensioning linkage seat, so that the tension spring can be matched with the tensioning chain wheel to enable the chain to be in a tensioning state under the action of the tension spring even if the chain is in a running-in and lengthened state, and the tensioning effect is ensured; the tension spring can also generate certain buffering, so that collision between the tensioning linkage seat and the bidirectional cylinder is avoided, and the service life is prolonged; simultaneously, through setting up two symmetric distribution's tensioning sprocket, can protect and the tensioning to the chain from upper and lower both sides, avoided appearing falling the wheel phenomenon, improved the stability of using. In addition, the utility model discloses still through be provided with the supporting seat in one side of two-way cylinder, be provided with the back shaft on the supporting seat, rotate on the back shaft and install the guide to rotate an end of guide and install on tensioning linkage seat, utilize guide and back shaft can support tensioning linkage seat, reduce the pressure to two-way cylinder, further prolonged life; the guide piece can also guide the movement of the tensioning linkage seat, so that the working stability is ensured; the tensioning linkage seat is provided with the adjusting waist holes, and the tensioning chain wheel is slidably mounted on the adjusting waist holes through the mounting columns, so that the distance between the two adjusting waist holes can be adjusted, the tensioning linkage seat can be suitable for tensioning different chains, and the application range is expanded; by arranging the first locking piece and the second locking piece, the first locking piece and the second locking piece can be matched with the mounting plate from two end parts to achieve the purpose of keeping the position of the tensioning chain wheel stable, and the stability of the structure is improved; diameter through with the second retaining member sets to be greater than tension sprocket's diameter to make the second retaining member not only can reach and reach stable effect to tension sprocket position, can block in one side of tension sprocket, avoided appearing the phenomenon emergence of chain and tension sprocket separation, improved the stability of using. Therefore, the utility model discloses not only can improve tensioning work efficiency, still have that the tensioning is effectual, structural stability is high, long service life, application range are wide and the high advantage of stability in use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a rear view of the tensioning mount;
fig. 4 is a partially enlarged view of a portion a in fig. 2.
The labels in the figures are: 1-mounting plate, 2-first chain wheel, 3-second chain wheel, 4-chain, 5-bidirectional cylinder, 6-tension spring, 7-tensioning linkage seat, 8-tensioning chain wheel, 9-supporting seat, 10-supporting shaft, 11-guiding element, 12-adjusting waist hole, 13-mounting column, 14-first locking element and 15-second locking element.
Detailed Description
The present invention will be further described with reference to the drawings and examples, which should not be construed as a limitation to the present invention.
Examples are given. A bidirectional chain tensioner is composed of a mounting plate 1, a first chain wheel 2 and a second chain wheel 3 which are arranged on the mounting plate 1, and a chain 4 for connecting the first chain wheel 2 and the second chain wheel 3, wherein a bidirectional cylinder 5 which is arranged on the mounting plate 1 is arranged between the first chain wheel 2 and the second chain wheel 3; tension springs 6 are arranged at two end parts of the bidirectional cylinder 5, a tensioning linkage seat 7 is arranged at the end part of each tension spring 6, and two symmetrically distributed tensioning chain wheels 8 are arranged on each tensioning linkage seat 7; the chain 4 is arranged between two tensioning sprockets 8.
A U-shaped supporting seat 9 is arranged on one side of the bidirectional cylinder 5, and a supporting shaft 10 is arranged in the middle of the supporting seat 9; a guide piece 11 is rotatably arranged on one side surface of each tensioning linkage seat 7, and one end part of each guide piece 11 is rotatably arranged on the supporting shaft 10; the tensioning linkage seat 7 is provided with adjusting waist holes 12 corresponding to the positions of the tensioning chain wheels 8, and each adjusting waist hole 12 is provided with a mounting column 13 in a sliding manner; a first locking piece 14 and a second locking piece 15 are respectively arranged at two end parts of the mounting column 13, and the first locking piece 14 is arranged on the bottom surface of the tensioning linkage seat 7; the tensioning chain wheel 8 is sleeved on the mounting column 13, and the tensioning chain wheel 8 is arranged between the second locking piece 15 and the top surface of the tensioning linkage seat 7; the diameter of the second locking member 15 is larger than that of the tension sprocket 8; the first chain wheel 2, the second chain wheel 3 and all the tensioning chain wheels 8 are arranged on the same plane.
The working principle is as follows: when the device is used, firstly, the whole device is connected with an external safe commercial power, when the tension degree of the chain 4 needs to be adjusted, firstly, the two-way cylinder 5 is controlled to be started, the two-way cylinder 5 can push the tension linkage seat 7 to move outwards through the tension spring 6 after being started, the tension linkage seat 7 can drive the tension chain wheels 8 to move together in the moving process, and the chain 4 passes through the two tension chain wheels 8, so that the chain 4 can be driven to move in the moving process of the two tension chain wheels 8, the adjustment of the tension degree of the chain 4 is completed, and the chain 4 can keep effective tension degree; meanwhile, one end of the guide piece 11 can be driven to move together in the moving process of the tensioning linkage seat 7, because one end of the guide piece 11 is rotatably installed on the support shaft 10, and the other end of the guide piece 11 is rotatably installed on the tensioning linkage seat 7, the tensioning linkage seat 7 can drive the guide piece 11 to rotate along the support shaft 10, the tensioning linkage seat 7 can be supported by utilizing the mutual matching of the support shaft 10 and the guide piece 11, the pressure on the bidirectional cylinder 5 is reduced, and the service life is prolonged; in addition, after the chain is run-in and lengthened, the chain 4 can still realize a certain effective tensioning effect under the action of the tension spring 6.
When the distance between two tensioning chain wheels 8 needs to be adjusted, first locking piece 14 is loosened, then tensioning chain wheel 8 is pushed to move in the direction of adjusting waist hole 12, the belt mounting column 13 can synchronously slide in the adjusting waist hole 12 in the moving process of tensioning chain wheel 8, and after the belt mounting column is moved to a proper position, first locking piece 14 is screwed, so that first locking piece 14 fixes the position of mounting column 13, and further the purpose of fixing the position of tensioning chain wheel 8 is realized.
Claims (5)
1. The utility model provides a two-way overspeed device tensioner for chain, includes mounting panel (1), sets up first sprocket (2) and second sprocket (3) on mounting panel (1) and is used for connecting chain (4) of first sprocket (2) and second sprocket (3), its characterized in that: a bidirectional cylinder (5) positioned on the mounting plate (1) is arranged between the first chain wheel (2) and the second chain wheel (3); two ends of the bidirectional cylinder (5) are respectively provided with a tension spring (6), the end of each tension spring (6) is provided with a tension linkage seat (7), and each tension linkage seat (7) is provided with two symmetrically distributed tension chain wheels (8); the chain (4) is arranged between two tensioning sprockets (8).
2. The tension device for a bidirectional chain as set forth in claim 1, wherein: a U-shaped supporting seat (9) is arranged on one side of the bidirectional cylinder (5), and a supporting shaft (10) is arranged in the middle of the supporting seat (9); and a guide piece (11) is rotatably arranged on one side surface of each tensioning linkage seat (7), and one end part of each guide piece (11) is rotatably arranged on the support shaft (10).
3. The tension device for a bidirectional chain as set forth in claim 1, wherein: adjusting waist holes (12) are formed in the positions, corresponding to the tensioning chain wheels (8), of the tensioning linkage seats (7), and mounting columns (13) are slidably mounted on the adjusting waist holes (12); a first locking piece (14) and a second locking piece (15) are respectively installed at two end parts of the installation column (13), and the first locking piece (14) is arranged on the bottom surface of the tensioning linkage seat (7); tensioning sprocket (8) cup joints on erection column (13), and tensioning sprocket (8) sets up between second retaining member (15) and tensioning linkage seat (7) top surface.
4. The tension device for a bidirectional chain as set forth in claim 3, wherein: the diameter of the second locking piece (15) is larger than that of the tensioning chain wheel (8).
5. The tension device for a bidirectional chain as claimed in any one of claims 1 to 4, wherein: the first chain wheel (2), the second chain wheel (3) and all the tensioning chain wheels (8) are arranged on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222016880.4U CN217806876U (en) | 2022-08-02 | 2022-08-02 | Tensioning device for bidirectional chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222016880.4U CN217806876U (en) | 2022-08-02 | 2022-08-02 | Tensioning device for bidirectional chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217806876U true CN217806876U (en) | 2022-11-15 |
Family
ID=83972459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222016880.4U Active CN217806876U (en) | 2022-08-02 | 2022-08-02 | Tensioning device for bidirectional chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217806876U (en) |
-
2022
- 2022-08-02 CN CN202222016880.4U patent/CN217806876U/en active Active
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