CN214888658U - Automatic chain tensioning mechanism of manipulator - Google Patents
Automatic chain tensioning mechanism of manipulator Download PDFInfo
- Publication number
- CN214888658U CN214888658U CN202023245251.6U CN202023245251U CN214888658U CN 214888658 U CN214888658 U CN 214888658U CN 202023245251 U CN202023245251 U CN 202023245251U CN 214888658 U CN214888658 U CN 214888658U
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- chain
- pull rod
- tensioning
- nut
- driven sprocket
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- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 230000007704 transition Effects 0.000 claims abstract description 16
- 230000001174 ascending effect Effects 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an automatic straining device of chain of manipulator, including drive sprocket, driven sprocket, chain, cross cab apron, fixed pull rod, tensioning pull rod and spring, the chain is provided with ascending fixed pull rod on crossing the cab apron around drive sprocket and driven sprocket, and chain one end is connected with fixed pull rod upper end, and the other end is connected with tensioning pull rod lower extreme, and the tensioning pull rod upper end cup joints with the spring after passing the cab apron. The automatic chain tensioning mechanism has the advantages that the tensioning is not required to be adjusted manually at regular intervals, the transmission precision of the chain is improved, the adjustable range of the tensioning force is wide, the automatic chain tensioning mechanism is suitable for reciprocating transmission of most chains, the structure is simple and reliable, the space is saved, and the production and the maintenance are convenient; the chain bypasses the driving chain wheel and the driven chain wheel, one end of the chain is connected with the fixed pull rod, the other end of the chain is connected with the tensioning pull rod, the tensioning pull rod penetrates through the transition plate and then is loaded into the spring, and the pre-pressure of the spring is adjusted through the nut, so that the purpose of tensioning the chain is achieved.
Description
Technical Field
The utility model relates to a chain drive technical field specifically is an automatic straining device of chain of manipulator.
Background
In the prior art, two types of chain tensioning mechanisms are commonly used: one end of a swing arm is provided with an idler wheel, the other end of the swing arm is fixed by a rotating shaft, the idler wheel generates pre-pressure on a chain in a spring or counterweight mode so as to achieve the purpose of tensioning, the tensioning mechanism is not ideal in tensioning effect and only suitable for places with light load or low rotating speed, and particularly when the chain needs to be subjected to reciprocating transmission, two groups of tensioning mechanisms are required to be arranged, so that the occupied space is large, the transmission precision is low, and the structural design is not favorable; two, open the slot hole on the idler seat, reach the purpose of tensioning through the position of manual regulation idler, this kind of mechanism is comparatively rigid, can't deal with the alternate situation of chain elasticity, and the chain is very easily worn and torn not hard up, needs regular manual regulation rate of tension, when the chain need reciprocal transmission equally, still need set up two sets of straining device, occupies great space and transmission precision low. Therefore, a highly reliable automatic chain tensioning mechanism is required to solve such problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide an automatic straining device of chain of manipulator, guarantee the reciprocal driven reliability of chain, need not regular manual regulation rate of tension, improved the transmission precision of chain to the rate of tension adjustable range is wide, is applicable to the reciprocal transmission of most chains, and simple structure is reliable, not only saves space but also is convenient for production and maintenance.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an automatic straining device of chain of manipulator, includes drive sprocket, driven sprocket, chain, crosses cab apron, fixed pull rod, tensioning pull rod and spring, drive sprocket and driven sprocket are walked around to the chain, cross and be provided with ascending fixed pull rod on the cab apron, chain one end is connected with fixed pull rod upper end, and the other end is connected with tensioning pull rod lower extreme, tensioning pull rod upper end is passed and is cup jointed with the spring after the cab apron.
Further, still include motor cabinet and driven sprocket seat, motor cabinet and driven sprocket seat set up on a vertical straight line, motor cabinet and driven sprocket seat fixed mounting are on the vertical adjusting module of manipulator, be provided with motor and drive sprocket cup joint on the motor cabinet on the motor output shaft, set up driven sprocket on the driven sprocket seat.
Furthermore, the fixed pull rod comprises a first stud, a first connector, a first limiting hole and a first nut, the upper end of the first stud is fixedly connected with the first connector, the first connector is provided with the first limiting hole, the lower end of the first stud penetrates through the transition plate and then is limited through the first nut, the first connector is connected with the chain, and the first nut is used for adjusting and fixing.
Furthermore, the tensioning pull rod comprises a second stud, a second connector, a second limiting hole and a second nut, the lower end of the second stud is fixedly connected with the second connector, the second connector is provided with the second limiting hole, the upper end of the second stud penetrates through the transition plate and then is sleeved with the spring, the top of the second stud is limited through the second nut, and the pre-pressure of the spring is adjusted by adjusting the second nut.
Furthermore, a certain gap is reserved between the second connector and the transition plate, so that the alternating tightness condition during chain transmission can be adapted.
Furthermore, the first nut and the second nut are arranged in a double-nut mode, and the fact that the first nut and the second nut are not loosened after being used for multiple times is guaranteed.
Compared with the prior art, the beneficial effects of the utility model are that: the automatic chain tensioning mechanism of the manipulator has the following advantages:
1. the automatic chain tensioning mechanism does not need to adjust tensioning manually at regular intervals, improves the transmission precision of the chain, has wide adjustable range of tensioning force, is suitable for reciprocating transmission of most chains, has simple and reliable structure, saves space and is convenient to produce and maintain.
2. The chain bypasses the driving chain wheel and the driven chain wheel, one end of the chain is connected with the fixed pull rod, the fixed pull rod is arranged on the transition plate, the other end of the chain is connected with the tensioning pull rod, the tensioning pull rod penetrates through the transition plate and then is arranged in the spring, and the pre-pressure of the spring is adjusted through the nut, so that the purpose of tensioning the chain is achieved; a certain gap is reserved between the tension pull rod and the transition plate, so that the tension pull rod can adapt to the condition of alternate tightness during chain transmission.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the working principle of the present invention;
fig. 3 is a schematic structural view of the middle fixing pull rod and the tensioning pull rod of the present invention.
In the figure: the chain tensioning device comprises a motor base 1, a driving chain wheel 2, a driven chain wheel base 3, a driven chain wheel 4, a chain 5, a transition plate 6, a fixed pull rod 7, a tensioning pull rod 8, a spring 9, a first stud 71, a first connecting head 72, a first limiting hole 73, a first nut 74, a second stud 81, a second connecting head 82, a second limiting hole 83 and a second nut 84.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions:
the utility model provides an automatic straining device of chain of manipulator, includes drive sprocket 2, driven sprocket 4, chain 5, crosses cab apron 6, fixed pull rod 7, tensioning pull rod 8 and spring 9, and drive sprocket 2 and driven sprocket 4 are walked around to chain 5, crosses to be provided with ascending fixed pull rod 7 on the cab apron 6, and 5 one end of chain are connected with fixed pull rod 7 upper end, and the other end is connected with 8 lower extremes of tensioning pull rod, and 8 upper ends of tensioning pull rod are passed cab apron 6 back and are cup jointed with spring 9.
Wherein, still include motor cabinet 1 and driven sprocket seat 3, motor cabinet 1 and driven sprocket seat 3 set up on a vertical straight line, and motor cabinet 1 and driven sprocket seat 3 fixed mounting are provided with motor and drive sprocket 2 on the motor cabinet 1 and cup joint on the motor output shaft on the vertical adjusting module of manipulator, set up driven sprocket 4 on the driven sprocket seat 3.
The fixed pull rod 7 comprises a first stud 71, a first connecting head 72, a first limiting hole 73 and a first nut 74, the upper end of the first stud 71 is fixedly connected with the first connecting head 72, the first connecting head 72 is provided with the first limiting hole 73, the lower end of the first stud 71 penetrates through the transition plate 6 and then is limited through the first nut 74, the first connecting head 72 is connected with the chain 5, and the first nut 74 is used for adjusting and fixing.
The tensioning pull rod 8 comprises a second stud 81, a second connector 82, a second limiting hole 83 and a second nut 84, the lower end of the second stud 81 is fixedly connected with the second connector 82, the second connector 82 is provided with the second limiting hole 83, the upper end of the second stud 81 penetrates through the transition plate 6 and then is sleeved with the spring 9, the top of the second stud is limited through the second nut 84, and the pre-pressure of the spring 9 is adjusted by adjusting the second nut 84; a certain gap is reserved between the second connector 82 and the transition plate 6, so that the alternating tightness of the chain transmission can be adapted.
The first nut 74 and the second nut 84 are arranged in a double-nut mode, and are guaranteed not to loosen after being used for multiple times.
The working principle is as follows: the chain 5 bypasses the driving chain wheel 2 and the driven chain wheel 3, one end of the chain 5 is connected with the fixed pull rod 7, the other end of the chain 5 is connected with the tensioning pull rod 8, the tensioning pull rod 8 penetrates through the transition plate 6 and then is loaded into the spring 9, the pre-pressure of the spring 9 is adjusted through the second nut 84, and therefore the purpose of tensioning the chain is achieved, a certain gap is reserved between the second connector 82 and the transition plate 6, and the chain tensioning device can adapt to the situation of alternate tightness during chain transmission. When the transmission mechanism does reciprocating motion, when the motor rotates clockwise, the driving chain wheel 2 is driven to rotate clockwise, the tensioning pull rod 8 is further pulled through the chain 5, the spring 9 is compressed due to the limiting effect of the transition plate 6, and the chain 5 keeps tensioned at the moment under the action of the spring 9; when the motor rotates anticlockwise, the driving chain wheel 2 is driven to rotate anticlockwise, then the chain 5 is loosened, the tensioning pull rod 8 moves upwards under the action of the spring 9, and the chain 5 is kept in a tensioning state.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic straining device of chain of manipulator which characterized in that: including drive sprocket (2), driven sprocket (4), chain (5), cross cab apron (6), fixed pull rod (7), tensioning pull rod (8) and spring (9), drive sprocket (2) and driven sprocket (4) are walked around in chain (5), cross and be provided with ascending fixed pull rod (7) on cab apron (6), chain (5) one end is connected with fixed pull rod (7) upper end, and the other end is connected with tensioning pull rod (8) lower extreme, tensioning pull rod (8) upper end is passed and is cup jointed with spring (9) after cab apron (6).
2. The automatic chain tensioning mechanism of a manipulator according to claim 1, wherein: still include motor cabinet (1) and driven sprocket seat (3), motor cabinet (1) and driven sprocket seat (3) set up on a vertical straight line, motor cabinet (1) and driven sprocket seat (3) fixed mounting are on the vertical adjusting module of manipulator, it cup joints on the motor output shaft to be provided with motor and drive sprocket (2) on motor cabinet (1), set up driven sprocket (4) on driven sprocket seat (3).
3. The automatic chain tensioning mechanism of a manipulator according to claim 1, wherein: the fixed pull rod (7) comprises a first stud (71), a first connecting head (72), a first limiting hole (73) and a first nut (74), the upper end of the first stud (71) is fixedly connected with the first connecting head (72), the first connecting head (72) is provided with the first limiting hole (73), the lower end of the first stud (71) penetrates through the transition plate (6) and then is limited through the first nut (74), and the first connecting head (72) is connected with the chain (5).
4. The automatic chain tensioning mechanism of a manipulator according to claim 3, wherein: tensioning pull rod (8) include second double-screw bolt (81), second connector (82), spacing hole of second (83) and second nut (84), second double-screw bolt (81) lower extreme fixed connection second connector (82), be provided with spacing hole of second (83) on second connector (82), second double-screw bolt (81) upper end is passed cab apron (6) back and is cup jointed with spring (9), and the top carries on spacingly through second nut (84).
5. The automatic chain tensioning mechanism of a manipulator according to claim 4, wherein: and a certain gap is reserved between the second connector (82) and the transition plate (6).
6. The automatic chain tensioning mechanism of a manipulator according to claim 4, wherein: the first nut (74) and the second nut (84) are arranged in a double nut mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023245251.6U CN214888658U (en) | 2020-12-29 | 2020-12-29 | Automatic chain tensioning mechanism of manipulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023245251.6U CN214888658U (en) | 2020-12-29 | 2020-12-29 | Automatic chain tensioning mechanism of manipulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888658U true CN214888658U (en) | 2021-11-26 |
Family
ID=78910649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023245251.6U Expired - Fee Related CN214888658U (en) | 2020-12-29 | 2020-12-29 | Automatic chain tensioning mechanism of manipulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888658U (en) |
-
2020
- 2020-12-29 CN CN202023245251.6U patent/CN214888658U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |