CN210344184U - Chain transmission mechanism of industrial robot - Google Patents
Chain transmission mechanism of industrial robot Download PDFInfo
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- CN210344184U CN210344184U CN201920688718.2U CN201920688718U CN210344184U CN 210344184 U CN210344184 U CN 210344184U CN 201920688718 U CN201920688718 U CN 201920688718U CN 210344184 U CN210344184 U CN 210344184U
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Abstract
The utility model relates to an industrial robot's chain drive, including the action wheel, from the driving wheel, the chain, frame and tensioning assembly, the action wheel is and all fixes in the frame from the driving wheel, the chain meshing sets up at the action wheel with from the driving wheel on, this chain drive still includes tensioning assembly, tensioning assembly includes the left end connecting piece, right-hand member connecting piece and tensioning piece, the one end at the chain is fixed to the one end of left end connecting piece, the other end of left end connecting piece and the scalable connection of one end of tensioning piece, the other end at the chain is fixed to the one end of right-hand member connecting piece, the other end of right-hand member connecting piece and the scalable. The left end connecting piece and the right end connecting piece are respectively fixed at two ends of the chain and are respectively in telescopic connection with the tensioning block through the left end connecting piece and the right end connecting piece, so that the completeness of a closed transmission loop of the chain is guaranteed, and meanwhile, the tensioning force of the chain can be adjusted within a certain range.
Description
Technical Field
The utility model belongs to the technical field of industrial robot, especially, relate to industrial robot uses chain drive to carry out power transmission to and robot application.
Background
Chain transmission is a transmission mode for transmitting the motion and power of a driving sprocket with a special tooth form to a driven sprocket with a special tooth form through a chain.
Chain drives have many advantages compared to belt drives: no slipping phenomenon occurs; the accurate average transmission ratio can be maintained; the chain does not need too large tension force, and the pressure to the shaft is small; the power of transmission is great, and efficiency is higher, can transmit great circumference power when low-speed.
Compared with gear transmission: the chain transmission has the advantages of simple structure, convenient installation, low cost, large application range of transmission center distance (the maximum center distance can reach more than ten meters), and capability of working under severe conditions of high temperature, dustiness, oil stain and the like.
The chain transmission is mainly used in occasions with large center distance, requirements on accurate average transmission ratio and severe working environment, and is widely applied to machinery such as agriculture, mines, buildings, petroleum, chemical industry, hoisting and transportation and the like at present. The chain transmission structure is applied to the field of robot transmission, the chain transmission advantages can be highlighted through a certain design, and the characteristics of reducing transmission noise, unstable transmission and the like are achieved.
Due to the polygonal effect of the chain transmission structure, in the practical application process, the phenomenon of poor meshing or chain vibration caused by overlarge sag of the chain is easy to occur, and the prior art generally adopts a mode of removing 1-2 chain links to relieve the problems. However, this method is complicated in process, time-consuming and labor-consuming, and cannot be widely used.
SUMMERY OF THE UTILITY MODEL
The utility model provides an industrial robot's chain drive mechanism for solve the technical problem that chain drive spare tensioning can not be controlled and the chain vibrates easily among the prior art.
The utility model provides an industrial robot's chain drive, include the action wheel, from driving wheel, chain and frame, the action wheel and all fix in the frame from the driving wheel, the chain meshing sets up at the action wheel and from the driving wheel on, this chain drive still includes the tensioning subassembly, the tensioning subassembly includes left end connecting piece, right-hand member connecting piece and tensioning piece, the one end of left end connecting piece is fixed the one end of chain, the other end of left end connecting piece with the scalable connection of one end of tensioning piece, the one end of right-hand member connecting piece is fixed the other end of chain, the other end of right-hand member connecting piece with the scalable connection of the other end of tensioning piece, the chain drive in-process the tensioning piece is in the action wheel with reciprocating motion between the driving wheel.
Wherein, the left end connecting piece includes first chain connecting portion and first pars contractilis, first chain connecting portion with chain one end fixed connection, first pars contractilis with tensioning block one end telescopic connection.
Wherein, the right-hand member connecting piece includes second chain connecting portion and second pars contractilis, second chain connecting portion with the other end fixed connection of chain, the second pars contractilis with tensioning block other end scalable connection.
Wherein, tensioning piece symmetry is equipped with first recess and second recess, all be equipped with the internal thread structure in first recess and the second recess, first pars contractilis and the second pars contractilis all is equipped with the external screw thread structure, first pars contractilis passes through the helicitic texture and fixes in first recess, the second pars contractilis passes through the helicitic texture and fixes in the second recess.
The screwing direction of the external thread structure of the first telescopic part is opposite to that of the external thread structure of the second telescopic part.
The length of the first groove is longer than that of the first telescopic part, and the length of the second groove is longer than that of the second telescopic part.
The chain transmission mechanism further comprises a base, and the rack is fixedly connected with the base.
From the foregoing the embodiment of the utility model provides a, the utility model provides a chain drive mechanism, through set up the tensioning subassembly on the chain, left end connecting piece and right-hand member connecting piece are fixed respectively at the chain both ends, through left end connecting piece and right-hand member connecting piece respectively with tensioning piece scalable connection to both guaranteed that the closed transmission circuit of chain is complete, can carry out the adjustment in the certain limit to the tensile force of chain simultaneously. The utility model discloses a chain drive mechanism is applied to industrial robot, can reduce the vibration phenomenon that produces the bad and chain of meshing when the sag of chain is too big, increases the transmission accuracy nature of robot through adjusting the chain pretightning force.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a structural view of a chain transmission mechanism of an industrial robot according to the present invention;
FIG. 2 is a block diagram of the tensioning assembly of the present invention;
figure 3 is a cross-sectional view of the tension assembly of the present invention.
Description of the main elements:
1. a tension assembly; 2. a driving wheel; 3. a driven wheel; 4. a chain; 5. a frame; 6. a motor support skeleton; 11. a left end connector; 12. a right end connecting piece; 13. a tensioning block; 111. a first chain connecting portion; 112. a first telescopic part; 121. a second chain connecting portion; 122. a second telescopic part; 131. a first groove; 132. a second groove.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the invention discloses a chain transmission mechanism of an industrial robot, which comprises a driving wheel 2, a driven wheel 3, a chain 4 and a frame 5, wherein the driving wheel 2 and the driven wheel 3 are both fixed on the frame 5, the chain 4 is meshed with the driving wheel 2 and the driven wheel 3, the chain transmission mechanism further comprises a tensioning assembly 1, the tensioning assembly 1 comprises a left end connecting piece 11, a right end connecting piece 12 and a tensioning block 13, one end of the left end connecting piece 11 is fixed at one end of the chain 4, the other end of the left end connecting piece 11 is telescopically connected with one end of a tensioning block 13, one end of the right end connecting piece 12 is fixed at the other end of the chain 4, the other end of the right end connecting piece 12 is telescopically connected with the other end of the tensioning block 13, and the tensioning block 13 reciprocates between the driving wheel 2.
Compared with the prior art, the utility model provides a chain drive mechanism, through set up tensioning assembly 1 on chain 4, left end connecting piece 11 and right-hand member connecting piece 12 are fixed respectively at 4 both ends of chain, through left end connecting piece 11 and right-hand member connecting piece 12 respectively with tensioning piece 13 scalable connection to both guaranteed that the closed transmission circuit of chain 4 is complete, can carry out the adjustment in the certain limit to the tensile force of chain 4 simultaneously. The chain transmission mechanism of the utility model is applied to an industrial robot, can avoid the phenomena of poor meshing and chain vibration when the sag of the chain is too large, has no elastic sliding and slipping phenomena, has accurate average transmission ratio, reliable work and high efficiency; the transmission power is large, the overload capacity is strong, and the transmission size under the same working condition is small; the required tension is small, and the pressure acting on the shaft is small; can work in severe environments such as high temperature, humidity, dustiness, pollution and the like.
Referring to fig. 3, the left end connecting member 11 includes a first chain connecting portion 111 and a first telescopic portion 112, the first chain connecting portion 111 is fixedly connected to one end of the chain 4, and the first telescopic portion 112 is telescopically connected to one end of the tensioning block 13. The right end connecting piece 12 comprises a second chain connecting part 121 and a second telescopic part 122, the second chain connecting part 121 is fixedly connected with the other end of the chain 4, and the second telescopic part 122 is telescopically connected with the other end of the tensioning block 13.
The left end connecting piece 11 is the same as the right end connecting piece 12 in structure, and the first chain connecting part 111 and the second chain connecting part 121 both comprise detachable concave holes and blocking rods, and the blocking rods can fix or release the chain 4 in the opening and closing process. The first chain connecting portion 111 and the first telescopic portion 112, and the second chain connecting portion 121 and the second telescopic portion 122 are both rotatably and fixedly connected to adapt to different deformations of the chain 4 during transmission.
In this embodiment, the tensioning block 13 is symmetrically provided with a first groove 131 and a second groove 132, the first groove 131 and the second groove 132 are both provided with an internal thread structure therein, the first telescopic part 112 and the second telescopic part 122 are both provided with an external thread structure therein, the first telescopic part 112 is fixed in the first groove 131 through the thread structure, and the second telescopic part 122 is fixed in the second groove 132 through the thread structure. The direction of rotation of the male thread formation of the first telescoping portion 112 is opposite to the direction of rotation of the male thread formation of the second telescoping portion 122. The first recess 131 and the second recess 132 have the same shape and size, and the first recess 131 and the second recess 132 may be conducted or not conducted.
In the present embodiment, the length of the first groove 131 is longer than the length of the first telescopic part 112, and the length of the second groove 132 is longer than the length of the second telescopic part 122. The depth of the first groove 131 and the depth of the second groove 132 are both provided with a buffer area, so as to avoid unnecessary friction damage caused by complete pushing of the first telescopic part 112 or the second telescopic part 122.
In this embodiment, the chain transmission mechanism further includes a motor supporting frame 6, and the frame 5 is fixedly connected to the motor supporting frame 6. The motor supporting framework 6 is mainly used for stabilizing the rack 5 and avoiding the vibration or inclination of a chain caused by instability of the rack 5 in the transmission process.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Above is the description to the technical scheme that the utility model provides, to technical personnel in the field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and range of application, to sum up, this description content should not be understood as the restriction of the utility model.
Claims (7)
1. The utility model provides an industrial robot's chain drive, includes the action wheel, follows driving wheel, chain and frame, the action wheel and all fix in the frame from the driving wheel, the chain meshing sets up at the action wheel with follow driving wheel on, its characterized in that, this chain drive still includes the tensioning subassembly, the tensioning subassembly includes left end connecting piece, right-hand member connecting piece and tensioning piece, the one end of left end connecting piece is fixed the one end of chain, the other end of left end connecting piece with the scalable connection of one end of tensioning piece, the one end of right-hand member connecting piece is fixed the other end of chain, the other end of right-hand member connecting piece with the scalable connection of the other end of tensioning piece, the chain drive in-process the tensioning piece is in the action wheel with reciprocating motion between the follow driving wheel.
2. The chain transmission of an industrial robot according to claim 1, characterized in that the left end connection member comprises a first chain connection part fixedly connected to one end of the chain and a first telescopic part telescopically connected to one end of the tensioning block.
3. The chain transmission of an industrial robot according to claim 2, wherein the right end connecting member includes a second chain connecting portion fixedly connected to the other end of the chain and a second telescopic portion telescopically connected to the other end of the tensioning block.
4. The chain transmission mechanism of an industrial robot according to claim 3, wherein the tensioning block is symmetrically provided with a first groove and a second groove, the first groove and the second groove are provided with internal thread structures, the first telescopic part and the second telescopic part are provided with external thread structures, the first telescopic part is fixed in the first groove through the thread structures, and the second telescopic part is fixed in the second groove through the thread structures.
5. The chain transmission of an industrial robot according to claim 4, wherein the direction of rotation of the external thread structure of the first telescopic part is opposite to the direction of rotation of the external thread structure of the second telescopic part.
6. The chain transmission of an industrial robot according to claim 4, wherein the first groove has a length longer than the first telescopic part length, and the second groove has a length longer than the second telescopic part length.
7. A chain transmission of an industrial robot according to claim 1, characterized in that the chain transmission further comprises a base, said frame being fixedly connected to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920688718.2U CN210344184U (en) | 2019-05-13 | 2019-05-13 | Chain transmission mechanism of industrial robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920688718.2U CN210344184U (en) | 2019-05-13 | 2019-05-13 | Chain transmission mechanism of industrial robot |
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| Publication Number | Publication Date |
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| CN210344184U true CN210344184U (en) | 2020-04-17 |
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| CN201920688718.2U Active CN210344184U (en) | 2019-05-13 | 2019-05-13 | Chain transmission mechanism of industrial robot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117339262A (en) * | 2023-12-04 | 2024-01-05 | 烟台核信环保设备有限公司 | Vertical filter press |
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2019
- 2019-05-13 CN CN201920688718.2U patent/CN210344184U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117339262A (en) * | 2023-12-04 | 2024-01-05 | 烟台核信环保设备有限公司 | Vertical filter press |
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