CN216105332U

CN216105332U - Tension bracket

Info

Publication number: CN216105332U
Application number: CN202121935149.0U
Authority: CN
Inventors: 程诗超; 曾贵旺
Original assignee: Dongguan Chuangzhan Machinery Co ltd
Current assignee: Dongguan Chuangzhan Machinery Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-22
Anticipated expiration: 2031-08-17

Abstract

The utility model relates to the field of cable processing corollary equipment, in particular to a tension bracket which comprises a rack, a first tension adjusting assembly, a second tension adjusting assembly, a first sliding rail and a second sliding rail, wherein the first sliding rail is positioned above the second sliding rail, the first tension adjusting assembly comprises a first fixed pulley, a first movable pulley and a first tension adjusting device, the first movable pulley is connected with the first sliding rail in a sliding mode, the first tension adjusting device is connected with the first movable pulley in a driving mode, the first movable pulley is positioned above the first fixed pulley, the second tension adjusting assembly comprises a second fixed pulley, a second movable pulley and a second tension adjusting device, the second movable pulley is connected with the second sliding rail in a sliding mode, the second fixed pulley is connected with the second movable pulley in a driving mode, and the second fixed pulley is positioned above the second movable pulley. The tension bracket is compact in structure, the tension of two cables can be adjusted at the same time, and the cable winding efficiency and the utilization rate of the tension bracket are improved; the first tension adjusting assembly and the second tension adjusting assembly do not interfere with each other, and the tension bracket is good in stability and strong in adaptability.

Description

Tension bracket

Technical Field

The utility model relates to the field of cable processing corollary equipment, in particular to a tension bracket.

Background

In recent years, with the wide application of cables in production and life of people, in order to obtain high-performance cables, the process of winding and coiling the cables is very important; the equipment of rolling up is beaten to cable commonly used generally includes blowing device, tension bracket and coiling mechanism, however current tension bracket can only adjust the tension of a cable, and the cable rolling is consuming time longer, and the structure of tension bracket is complicated and work efficiency is lower. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a tension bracket.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a tension bracket, its includes frame, tension adjusting part one, tension adjusting part two, sets up in the slide rail one of frame one side and sets up in the slide rail two of frame opposite side, slide rail one is located the top of slide rail two, tension adjusting part one sets up in the frame including rotating fixed pulley one, sliding connection in the movable pulley one of slide rail one and the tension adjusting device one of being connected with the drive of movable pulley one, movable pulley one is located the top of fixed pulley one, tension adjusting part two is including rotating fixed pulley two, the sliding connection that sets up in the frame in the movable pulley two of slide rail two and the tension adjusting device two of being connected with the drive of movable pulley two, fixed pulley two is located the top of movable pulley two.

Furthermore, the tension bracket also comprises a first tension detection device and a second tension detection device, wherein the first tension detection device is used for detecting the tension of the cables wound on the first fixed pulley and the first movable pulley, and the second tension detection device is used for detecting the tension of the cables wound on the second fixed pulley and the second movable pulley.

Furthermore, the first tension adjusting assembly comprises a first supporting seat arranged on the front side of the rack and a first driver connected to the first supporting seat and in driving connection with the first movable pulley.

Furthermore, the movable pulley II comprises a sliding seat II which is connected with the sliding rail II in a sliding manner and a pulley body II which is connected with the sliding seat II in a rotating manner; the second tension adjusting assembly comprises a second driver positioned between the second sliding rail and the rack, a second supporting seat connected to the second driver and the rack, and a connecting piece connected to the output end of the second driver and the second sliding seat.

Furthermore, the tension frame further comprises two first transmission wheels, a first conveyor belt, a first gear set and a first angle sensor, wherein the two first transmission wheels are rotatably arranged on the frame and located at two ends of the first sliding rail, the first conveyor belt is connected to the two first transmission wheels in a transmission mode, the first gear set is connected with a rotating shaft of the first transmission wheel, the first angle sensor is connected with the first gear set, the first movable pulley comprises a first sliding seat and a first pulley body, the first sliding seat is connected to the first sliding rail in a sliding mode, the first pulley body is rotatably connected to the first sliding seat, the first sliding seat is in driving connection with an output end of the first tension adjusting device, and the first conveyor belt is connected to the first sliding seat.

Furthermore, the tension frame further comprises two second transmission wheels which are rotatably arranged in the rack and located at two ends of the second sliding rail, a second conveyor belt which is in transmission connection with the two second transmission wheels, a second gear set which is connected with a rotating shaft of the second transmission wheel, and a second angle sensor which is connected with the second gear set, wherein the second conveyor belt is connected with the second sliding seat.

Furthermore, the first tension adjusting assembly further comprises a first wire outlet wheel arranged on the rack and located on one side of the first movable pulley and a first wire inlet wheel arranged on the rack and located on the other side of the first movable pulley, and the second tension adjusting assembly further comprises a second wire outlet wheel arranged on the rack and located on one side of the second movable pulley and a second wire inlet wheel arranged on the rack and located on the other side of the second movable pulley.

Furthermore, the first fixed pulley, the first movable pulley, the second fixed pulley and the second movable pulley are provided with a plurality of first wire grooves, and the first wire outlet wheel, the second wire outlet wheel, the first wire inlet wheel and the second wire inlet wheel are provided with second wire grooves.

Furthermore, the tension bracket also comprises a base which is rotatably connected with the frame.

Further, the tension bracket still includes the connecting hole one that runs through the frame setting, set up in the frame bottom and with the connecting hole two of connecting hole one intercommunication, set up in the ring channel on frame top and rotate and set up in the ring channel and with a plurality of balls of the bottom face conflict of frame.

The utility model has the beneficial effects that: the tension bracket is compact in structure, can adjust the tension of two cables at the same time, saves the space for adjusting the tension of the cables, reduces the cost and the field for winding and unwinding the cables, and improves the cable winding efficiency and the utilization rate of the tension bracket; the first tension adjusting assembly and the second tension adjusting assembly do not interfere with each other, and the tension bracket is good in stability and strong in adaptability.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective view of the first embodiment of the present invention.

Fig. 3 is a partial perspective view of the second embodiment of the present invention.

Fig. 4 is a schematic view of a partial three-dimensional structure of the present invention.

Fig. 5 is a partial cross-sectional view of the present invention.

Description of reference numerals:

1. a frame; 2. a second slide rail; 3. a first slide rail; 4. a first fixed pulley; 5. a first movable pulley; 6. a first tension adjusting device; 7. a second fixed pulley; 8. a second movable pulley; 9. a second tension adjusting device; 11. a first transmission wheel; 12. a first gear set; 13. a first angle sensor; 14. a first conveyor belt; 15. a second driving wheel; 16. a second gear set; 17. a second angle sensor; 18. a second conveyor belt; 19. a first wire groove; 20. a second wire groove; 21. a machine base; 22. a first connecting hole; 23. a second connecting hole; 24. an annular groove; 25. a ball bearing; 26. a locking member; 51. a first sliding seat; 52. a first wire outlet wheel; 53. a first wire feeding wheel; 61. a first supporting seat; 62. a first driver; 81. a second sliding seat; 82. a second outgoing wheel; 83. a wire feeding wheel II; 91. a second supporting seat; 92. a second driver; 93. a connecting member.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 5, the tension bracket provided by the present invention comprises a frame 1, a first tension adjusting assembly and a first slide rail 3 both disposed on the front side of the frame 1, and a second tension adjusting assembly and a second slide rail 2 both disposed on the rear side of the frame 1, wherein the first slide rail 3 is disposed above the second slide rail 2, the first tension adjusting assembly comprises a first fixed pulley 4 rotatably disposed on the frame 1 and below the first slide rail 3, a first movable pulley 5 slidably connected to the first slide rail 3, and a first tension adjusting device 6 drivingly connected to the first movable pulley 5, the first tension adjusting device 6 is configured to drive the first movable pulley 5 to move toward or away from the first fixed pulley 4, the second tension adjusting assembly comprises a second fixed pulley 7 rotatably disposed on the frame 1 and above the second slide rail 2, a second movable pulley 8 slidably connected to the second slide rail 2, and a second tension adjusting device 9 drivingly connected to the second movable pulley 8, the second tension adjusting device 9 is used for driving the second movable pulley 8 to move towards a direction close to or far away from the second fixed pulley 7, the first movable pulley 5 is located above the first fixed pulley 4, and the second fixed pulley 7 is located above the second movable pulley 8.

Specifically, the first fixed pulley 4 and the first movable pulley 5 are arranged on the same vertical plane, and the second movable pulley 8 and the second fixed pulley 7 are arranged on the same vertical plane. In the actual use process, the first tension adjusting assembly and the second tension adjusting assembly can be respectively used for carrying out tension adjustment on cables with the same thickness or different thicknesses, a cable on the external feeding device is repeatedly wound on the first fixed pulley 4 and the first movable pulley 5 for multiple times in a clockwise or anticlockwise direction, and then the wound cable is connected with the external winding device; similarly, another cable of the external discharging device can be wound on the tension adjusting assembly II, and then the cable is connected with the external winding device, and the two cables are wound into two wound cables through the external winding device.

When the winding speed of the external winding device to the cable wound on the first tension adjusting assembly is too high, the tension of the cable wound on the first tension adjusting assembly is too high, and when the unwinding speed of the external discharging device to the cable wound on the first tension adjusting assembly is too high, the tension of the cable wound on the first tension adjusting assembly is too low; if the tension of the cable wound on the first tension detection device is larger than or smaller than a preset tension value, the first tension adjustment device 6 drives the movable pulley I5 to slide back and forth on the first sliding rail I3 to increase or decrease the distance between the movable pulley I5 and the fixed pulley I4, so that the tension of the cable wound between the movable pulley I5 and the fixed pulley I4 is increased or decreased, the tension of the cable wound on the first tension adjustment assembly is balanced and is restored to the preset value, and the tension of the cable is guaranteed to be constant; similarly, the second movable pulley 8 can be driven by the second tension adjusting device 9 to slide back and forth on the second sliding rail 2, so as to balance the tension of the cable wound on the second tension adjusting assembly and restore the tension to a preset value, thereby ensuring that the tension of the cable is constant. The first movable pulley 5 and the second movable pulley 8 do not interfere with each other in movement, so that the tension bracket can respectively adjust the tension of the two cables, the space and time required by cable tension adjustment are saved, and the cable tension adjustment efficiency and the cable tension adjustment utilization rate of the tension bracket are improved. Arranging a first slide rail 3 at the top end of the front side of the frame 1 and extending to the middle part of the frame 1 along the vertical direction, and arranging a first fixed pulley 4 at the bottom end of the front side of the frame 1; the second sliding rail 2 is arranged at the bottom end of the rear side of the rack 1 and extends to the middle of the rack 1 in the vertical direction, the second fixed pulley 7 is arranged at the middle of the rear side of the rack 1, and the maximum distance between the first fixed pulley 4 and the first movable pulley 5 is larger than the maximum distance between the second fixed pulley 7 and the second movable pulley 8, so that the first tension adjusting assembly can be adapted to the adjustment of the tension of a cable with a larger diameter. The tension bracket is compact in structure, the tension of the two cables can be adjusted at the same time, the space for adjusting the tension is saved, the cost and the field for winding and unwinding the cables are reduced, the first tension adjusting assembly and the second tension adjusting assembly do not interfere with each other, and the tension bracket is good in stability and strong in adaptability.

Furthermore, the tension bracket also comprises a first tension detection device and a second tension detection device, wherein the first tension detection device is used for detecting the tension of the cables wound on the first fixed pulley 4 and the first movable pulley 5, and the second tension detection device is used for detecting the tension of the cables wound on the second fixed pulley 7 and the second movable pulley 8. Specifically, the first tension detection device and the second tension detection device may both employ a tension sensor.

Specifically, the first tension detection device, the second tension detection device, the first tension adjustment device 6 and the second tension adjustment device 9 are electrically connected with the control center respectively. In the actual use process, the tension of the cable wound on the first tension adjusting assembly is detected through the first tension detecting device, the detected data are sent to the control center, and if the tension value sent to the control center by the first tension detecting device is larger than or smaller than a preset tension value, the control center controls the first tension adjusting device 6 to drive the first movable pulley 5 to slide back and forth on the first sliding rail 3 so as to balance the tension of the cable wound on the first movable pulley 5 and the second fixed pulley 7 and ensure that the tension of the cable is constant; similarly, when the tension detecting device II detects that the tension of the cable wound on the tension adjusting assembly II is larger than or smaller than a preset tension value, the control center controls the tension adjusting device II 9 to drive the movable pulley II 8 to slide back and forth on the sliding rail II 2 so as to balance the tension of the cable wound on the tension adjusting assembly II and ensure that the tension of the cable is constant; the first tension detection device is additionally arranged, so that the stability and the accuracy of the first tension adjusting assembly in the process of adjusting the tension of the cable are improved; and a second tension detection device is additionally arranged, so that the stability and the accuracy of the second tension adjusting assembly in the process of adjusting the tension of the cable are improved.

Further, the tension adjusting device one 6 comprises a supporting seat one 61 arranged on the front side of the frame 1 and a driver one 62 connected to the supporting seat one 61 and in driving connection with the movable pulley one 5.

Specifically, the first driver 62 can adopt an air cylinder or a linear motor; the first driver 62 is located at the bottom end of the first slide rail 3. In the actual use process, the control center controls the first driver 62 to drive the first movable pulley 5 to slide back and forth along the first sliding rail 3 so as to adjust the tension of the cable wound on the first tension adjusting assembly, and the first support seat 61 is used for fixing the first driver 62 so as to improve the stability of the first driver 62 in the use process.

Further, the second movable pulley 8 comprises a second sliding seat 81 connected to the second sliding rail 2 in a sliding manner and a second pulley body connected to the second sliding seat 81 in a rotating manner; the second tension adjusting device 9 comprises a second driver 92 positioned between the second sliding rail 2 and the frame 1, a second support seat 91 connected to the second driver 92 and the frame 1, and a connecting member 93 connected to the output end of the second driver 92 and the second sliding seat 81.

Specifically, the second actuator 92 may be a rodless cylinder. The second driver 92 is controlled by the control center to drive the second sliding seat 81, the second sliding seat 81 and the second pulley body to slide back and forth along the second sliding rail 2 so as to adjust the tension of a cable wound on the second tension adjusting assembly, and a connecting piece 93 is additionally arranged so as to connect the output end of the rodless cylinder with the second sliding seat 81, so that the connecting structure of the second movable pulley 8 and the second driver 92 is simplified; the second supporting seat 91 is used for fixing the second driver 92 on the rack 1, and the connection structure of the second driver 92 and the rack 1 is simple and convenient to assemble and disassemble.

Furthermore, the tension frame further comprises two first transmission wheels 11 which are rotatably arranged on the frame 1 and located at two ends of the first sliding rail 3, a first conveyor belt 14 which is in transmission connection with the two first transmission wheels 11, a first gear set 12 which is connected with a rotating shaft of the first transmission wheel 11, and a first angle sensor 13 which is connected with the first gear set 12, wherein the first angle sensor 13 is installed on the frame 1, the first movable pulley 5 comprises a first sliding seat 51 which is in sliding connection with the first sliding rail 3 and a first pulley body which is in rotation connection with the first sliding seat 51, the first sliding seat 51 is in driving connection with an output end of the first driver 62, and the first conveyor belt 14 is connected with the first sliding seat 51.

Specifically, the angle sensor I13 is used for detecting the rotation angle of the gear set I12; the two first driving wheels 11 are located on the same vertical plane, the first angle sensor 13 is electrically connected with the control center, and the first conveyor belt 14 and the first sliding seat 51 move synchronously. Preferably, the first gear set 12 and the first angle sensor 13 are both arranged at the bottom end of the first sliding rail 3, and the first gear set 12 is connected with a rotating shaft of a first driving wheel 11 located at the bottom end of the first sliding rail 3. In the actual use process, if the tension of a cable wound on the tension detection device I is larger than a preset tension value, the control center controls the driver I62 to drive the pulley body I and the sliding seat I51 to move downwards along the sliding rail I3 so as to reduce the distance between the movable pulley I5 and the fixed pulley I4, the sliding seat I51 drives the conveyor belt I14 to rotate along the moving direction of the sliding seat I51, the conveyor belt I14 drives the two transmission wheels I11 to rotate along the rotating shafts in the same direction, the rotating shaft of the transmission wheel I11 positioned at the bottom end of the sliding rail I3 drives the gear set I12 to rotate, the angle sensor I13 senses the angle change of the gear set I12 and sends the detected data of the angle change of the gear set I12 to the control center, and after analyzing the winding data fed back by the tension detection device I and the angle sensor I13, the control center controls the external device to reduce the speed and wind or/or accelerate the external discharging device to pay off, meanwhile, the first control center controls the first driver 62 to slow down the downward movement speed of the first movable pulley 5 along the first sliding rail 3 until the tension of the cable wound on the first tension adjusting assembly is gradually reduced to a preset tension range, and the control center controls the external winding device to normally wind or/and the external discharging device to normally pay off, so that the cable wound on the first tension adjusting assembly is in a constant tension state, the problem that the cable is wound too tightly or too loosely is avoided, and the stability of the cable winding and tension adjusting process is improved. Similarly, if the tension of the cable wound on the first tension detection device is smaller than a preset tension value, the first control center control driver 62 controls the first movable pulley 5 to move upwards along the first sliding rail 3, the first angle sensor 13 sends the value of the angle change of the first gear set 12 to the control center, and the first control center control driver 62 controls the speed of the upward movement of the first movable pulley 5 along the first sliding rail 3 and controls the external winding device to accelerate winding or/and the external discharging device to decelerate and pay off until the tension of the cable wound on the first tension adjustment assembly is gradually increased to a preset tension range.

Furthermore, the tension bracket further comprises two driving wheels 15 which are rotatably arranged in the frame 1 and located at two ends of the sliding rail two 2, a conveyor belt two 18 which is in transmission connection with the two driving wheels 15, a gear set two 16 which is connected with a rotating shaft of the driving wheel two 15, and an angle sensor two 17 which is connected with the gear set two 16, wherein the angle sensor two 17 is arranged on the frame 1, and the conveyor belt two 18 is connected with the sliding seat two 81.

Specifically, the second angle sensor 17 is used for detecting the rotation angle of the rotating shaft of the second gear set 16; the two second driving wheels 15 are on the same vertical plane, the second conveying belt 18 and the second sliding seat 81 move synchronously, and the second angle sensor 17 is electrically connected with a control center. Preferably, the second gear set 16 and the second angle sensor 17 are both arranged at the bottom end of the second sliding rail 2, and the second gear set 16 is connected with a rotating shaft of a second driving wheel 15 located at the bottom end of the second sliding rail 2. In the actual use process, if the tension of the cable wound on the second tension detection device is smaller than or larger than a preset tension value, the second control center control driver 92 controls the second movable pulley 8 to move along the second sliding rail 2, the second angle sensor 17 detects a value of the angle change of the second gear set 16 and then sends the value to the control center, the second control center control driver 92 drives the sliding speed of the second movable pulley 8, the winding speed of the external winding device or/and the paying-off speed of the external discharging device until the tension of the cable wound on the second tension adjustment assembly is gradually increased or reduced to be within a preset tension range, the stability in the cable winding process is improved, and the cable wound on the second tension adjustment assembly is in a constant tension state.

Further, first tension adjusting part still including set up in frame 1 and be located the wire outgoing wheel 52 of one side of movable pulley 5 and set up in frame 1 and be located the inlet wire wheel 53 of the opposite side of movable pulley 5, wire outgoing wheel 52 and inlet wire wheel 53 all are located between movable pulley 5 and fixed pulley 4, second tension adjusting part still including set up in frame 1 and be located the wire outgoing wheel two 82 of one side of movable pulley two 8 and set up in frame 1 and be located the inlet wire wheel two 83 of the opposite side of movable pulley two 8, wire outgoing wheel two 82 and inlet wire wheel two 83 all are located between movable pulley two 8 and fixed pulley two 7.

Specifically, the first wire inlet wheel 53 and the second wire outlet wheel 82 are both arranged on the left side of the rack 1, the second wire inlet wheel 83 and the first wire outlet wheel 52 are both arranged on the right side of the rack 1, a cable supplied by the external discharging device is guided by the first wire inlet wheel 53, then wound on the first fixed pulley 4 and the first movable pulley 5, then guided by the first wire outlet wheel 52, and then wound by the external winding device, preferably, the external discharging device connected to the first tension adjusting assembly is arranged on the left side of the rack 1, and the external discharging device connected to the first tension adjusting assembly is positioned on the right side of the rack 1; similarly, the cable feeding device connected to the tension adjusting assembly II and the external feeding device are located on the right side of the rack 1, the external winding device connected to the tension adjusting assembly II is located on the left side of the rack 1, so that the two external winding devices supply two cables to the first wire inlet wheel 53 and the second wire inlet wheel 83 respectively, the two external winding devices wind the cables connected to the second wire outlet wheel 82 or the first wire outlet wheel 52 respectively, and the structure of the tension frame is more compact.

Furthermore, the fixed pulley I4, the pulley body I, the fixed pulley II 7 and the pulley body II are respectively provided with a plurality of coaxial wire grooves I19 which are arranged side by side, and the wire outgoing wheel I52, the wire outgoing wheel II 82, the wire incoming wheel I53 and the wire incoming wheel II 83 are respectively provided with a wire groove II 20.

Specifically, the second wire groove 20 of the first wire outlet wheel 52 and the first wire groove 19 on the outermost side of the first fixed pulley 4 or/and the first movable pulley 5 are positioned on the same vertical plane; the second wire groove 20 of the second wire outlet wheel 82 and the first wire groove 19 on the outermost side of the second fixed pulley 7 or/and the second movable pulley 8 are positioned on the same vertical plane; the second wire groove 20 of the first wire inlet wheel 53 and the first wire groove 19 at the innermost side of the first fixed pulley 4 or/and the first movable pulley 5 are positioned on the same vertical plane; and the second wire guide groove 20 of the second wire feeding wheel 83 and the first wire guide groove 19 at the innermost side of the second fixed pulley 7 or/and the second movable pulley 8 are positioned on the same vertical plane. In the actual use process, after the cable winds around the second wire groove 20 of the first wire inlet wheel 53, the cable winds into the first wire groove 19 on the innermost side of the first fixed pulley 4 or the first movable pulley 5, and then repeatedly winds into the first wire grooves 19 of the first fixed pulley 4 and the first movable pulley 5 for multiple times along the clockwise direction until the cable winds out of the first wire groove 19 on the outermost side of the first fixed pulley 4 or the first movable pulley 5 and then winds around the second wire groove 20 of the first wire outlet wheel 52 along the counterclockwise direction; in the same way, the other cable can be wound on the tension adjusting component II, the two cables can be respectively wound on the tension adjusting component I and the tension adjusting component II, the first wire groove 19 and the second wire groove 20 are additionally arranged, the cable is guided and limited around the positions on the tension adjusting component I and the tension adjusting component II, and the practicability and the stability of the tension frame in the process of adjusting the tension of the cable are improved.

Further, the tension bracket also comprises a base 21 which is rotatably connected with the frame 1.

In the actual use process, the base 21 is placed on the ground, the base 21 serves as a supporting leg, the stability of the rack 1 in the working process is improved, the rack 1 is rotatably connected to the base 21, the angle of the rack 1 is adjusted by rotating the rack 1, and therefore the positions, relative to an external discharging device or/and an external winding device, of a first tension adjusting assembly and a second tension adjusting assembly arranged on the rack 1 are adjusted, cables can be conveniently supplied to the first tension adjusting assembly or/and the second tension adjusting assembly by the external discharging device, and the cables connected to the first tension adjusting assembly or/and the second tension adjusting assembly can be conveniently wound by the external winding device.

Furthermore, the tension bracket further comprises a first connecting hole 22 penetrating through the base 21, a second connecting hole 23 arranged at the bottom end of the frame 1 and communicated with the first connecting hole 22, an annular groove 24 arranged at the top end of the base 21, and a plurality of balls 25 rotatably arranged in the annular groove 24 and abutted against the bottom end face of the frame 1.

Specifically, the tension bracket further comprises a locking piece 26, the locking piece 26 penetrates through the first connecting hole 22 and then is connected with the second connecting hole 23, the locking piece 26 is fixed in the second connecting hole 23 through another locking piece (such as a screw or a screw and the like), or the locking piece 26 (such as a screw or a screw and the like) is in threaded connection with the second connecting hole 23 of the frame 1, so that the locking piece 26 is firmly connected with the frame 1 and can rotate relative to the first connecting hole 22, a locking cap of the locking piece 26 abuts against the outer side wall of the base 21, and the base 21 is limited between the locking cap of the locking piece 26 and the bottom end of the frame 1. When the frame 1 rotates, the frame 1 drives the locking piece 26 screwed with the frame 1 to rotate in the connecting hole I22, and the plurality of balls 25 abutted against the frame 1 roll in the annular groove 24, so that the friction force generated by the frame 1 and the base 21 in the rotating process is reduced, and the service life of the tension bracket is prolonged; the second connecting hole 23 has a limiting effect on the rotation of the locking piece 26 and the rack 1, so that the stability of the locking piece 26 and the rack 1 in the rotation process is improved; the locking part 26 is additionally arranged, so that the connecting structure of the rack 1 and the base 21 is simplified, the rack 1 and the base 21 can be conveniently disassembled and assembled, the stability of the rack 1 in the rotating process is improved, and the rack 1 is prevented from shaking or deviating during rotation.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Claims

1. A tension bracket, characterized in that: comprises a frame (1), a first tension adjusting component, a second tension adjusting component, a first sliding rail (3) arranged on one side of the frame (1) and a second sliding rail (2) arranged on the other side of the frame (1), the first sliding rail (3) is positioned above the second sliding rail (2), the first tension adjusting component comprises a first fixed pulley (4) rotatably arranged on the rack (1), a first movable pulley (5) connected with the first sliding rail (3) in a sliding manner and a first tension adjusting device (6) in driving connection with the first movable pulley (5), the first movable pulley (5) is located above the first fixed pulley (4), the second tension adjusting assembly comprises a second fixed pulley (7) which is rotatably arranged on the rack (1), a second movable pulley (8) which is connected with the second sliding rail (2) in a sliding mode and a second tension adjusting device (9) which is connected with the second movable pulley (8) in a driving mode, and the second fixed pulley (7) is located above the second movable pulley (8).

2. A tension bracket as set forth in claim 1, wherein: the tension bracket further comprises a first tension detection device and a second tension detection device, wherein the first tension detection device is used for detecting the tension of the cables wound on the first fixed pulley (4) and the first movable pulley (5), and the second tension detection device is used for detecting the tension of the cables wound on the second fixed pulley (7) and the second movable pulley (8).

3. A tension bracket as set forth in claim 1, wherein: the first tension adjusting device (6) comprises a first supporting seat (61) arranged on the front side of the rack (1) and a first driver (62) connected to the first supporting seat (61) and in driving connection with the first movable pulley (5).

4. A tension bracket as set forth in claim 1, wherein: the movable pulley II (8) comprises a sliding seat II (81) connected with the sliding rail II (2) in a sliding mode and a pulley body II connected with the sliding seat II (81) in a rotating mode; the second tension adjusting device (9) comprises a second driver (92) positioned between the second sliding rail (2) and the rack (1), a second support seat (91) connected to the second driver (92) and the rack (1), and a connecting piece (93) connected to the output end of the second driver (92) and the second sliding seat (81).

5. A tension bracket as set forth in claim 1, wherein: the tension frame further comprises two driving wheels I (11) which are rotatably arranged on the rack (1) and located at two ends of the sliding rail I (3), a first transmission belt (14) connected to the two driving wheels I (11), a first gear set (12) connected with a rotating shaft of the first transmission wheel (11) and a first angle sensor (13) connected with the first gear set (12), the first movable pulley (5) comprises a first sliding seat (51) connected to the sliding rail I (3) in a sliding mode and a first pulley body (51) connected to the first sliding seat (51) in a rotating mode, the first sliding seat (51) is connected with an output end of the first tension adjusting device (6) in a driving mode, and the first transmission belt (14) is connected to the first sliding seat (51).

6. A tension bracket as claimed in claim 4, wherein: the tension frame further comprises two second driving wheels (15) which are rotatably arranged in the rack (1) and located at two ends of the second sliding rail (2), a second conveying belt (18) which is in transmission connection with the two second driving wheels (15), a second gear set (16) connected with a rotating shaft of the second driving wheel (15) and a second angle sensor (17) connected with the second gear set (16), and the second conveying belt (18) is connected with a second sliding seat (81).

7. A tension bracket as set forth in claim 1, wherein: the first tension adjusting assembly further comprises a first wire outlet wheel (52) which is arranged on the rack (1) and located on one side of the first movable pulley (5) and a first wire inlet wheel (53) which is arranged on the rack (1) and located on the other side of the first movable pulley (5), and the second tension adjusting assembly further comprises a second wire outlet wheel (82) which is arranged on the rack (1) and located on one side of the second movable pulley (8) and a second wire inlet wheel (83) which is arranged on the rack (1) and located on the other side of the second movable pulley (8).

8. A tension bracket as claimed in claim 7, wherein: the wire guiding device is characterized in that the fixed pulley I (4), the movable pulley I (5), the fixed pulley II (7) and the movable pulley II (8) are provided with a plurality of wire guiding grooves I (19), and the wire outgoing wheel I (52), the wire outgoing wheel II (82), the wire incoming wheel I (53) and the wire incoming wheel II (83) are provided with wire guiding grooves II (20).

9. A tension bracket as claimed in claim 1, 6 or 8, wherein: the tension bracket also comprises a base (21) which is rotatably connected with the rack (1).

10. A tension bracket as claimed in claim 9, wherein: the tension bracket further comprises a first connecting hole (22) penetrating through the base (21), a second connecting hole (23) arranged at the bottom end of the rack (1) and communicated with the first connecting hole (22), an annular groove (24) arranged at the top end of the base (21) and a plurality of balls (25) rotatably arranged in the annular groove (24) and abutted against the bottom end face of the rack (1).