Vertical traction machine for medium-voltage cable

Abstract

The medium-voltage cable vertical tractor comprises a main machine and an electric control cabinet which are arranged on a rack, and the main machine comprises a traction belt mechanism, a guide roller mechanism, a clamping adjusting mechanism and a tensioning adjusting mechanism; wherein the traction belt mechanism comprises a first belt transmission mechanism and a second belt transmission mechanism which are oppositely arranged on the rack; the first belt transmission mechanism and the second belt transmission mechanism are longitudinally arranged; the guide roller mechanisms are respectively arranged at an inlet and an outlet of the traction belt mechanism; the clamping adjusting mechanism comprises a first mounting structure and a second mounting structure, and the distance between a first traction belt of the first belt transmission mechanism and a second traction belt of the second belt transmission mechanism of the traction belt mechanism can be adjusted by adjusting the distance between the first mounting structure and the second mounting structure. The tractor mechanism adopts a flexible structure, so that the cable cannot be damaged.

Description

Technical Field

[0001] This invention relates to vertical traction machines, and more particularly to vertical traction machines for cable production lines. Background Technology

[0002] With the development of the cable industry, both domestically and internationally, the demand for cables is increasing, and the performance requirements are also becoming more stringent. Driven by market demand and the needs of their own development, many companies are phasing out outdated technology and low-end equipment to ensure product quality, enhance competitiveness, and meet the diverse performance requirements of their customers.

[0003] However, ordinary traction mechanisms are difficult to adapt to cables of different sizes. In addition, ordinary traction machines have rigid traction mechanisms, which can easily cause irreversible damage to the cables during the production process. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the requirement for cable versatility to meet the traction needs of cables with different diameters; and to provide an improved traction machine to address issues such as damage to the cable sheath.

[0005] To address the shortcomings of the above two methods, this invention proposes a vertical traction machine for medium-voltage cables, comprising a main unit and an electrical control cabinet mounted on a frame. The main unit includes a traction belt mechanism, a guide roller mechanism, a clamping adjustment mechanism, and a tension adjustment mechanism. The traction belt mechanism comprises a first belt drive mechanism and a second belt drive mechanism arranged opposite to each other on the frame; the first belt drive mechanism and the second belt drive mechanism are longitudinally arranged. The guide roller mechanism is respectively located at the inlet and outlet of the traction belt mechanism. The clamping adjustment mechanism includes a first mounting structure and a second mounting structure; by adjusting the distance between the first mounting structure and the second mounting structure, the distance between the first traction belt of the first belt drive mechanism and the second traction belt of the second belt drive mechanism can be adjusted.

[0006] In some embodiments, the first belt drive mechanism includes a first driving pulley, a first driven pulley, and a first traction belt; the second belt drive mechanism includes a second driving pulley, a second driven pulley, and a second traction belt; the cable is pulled from the first belt drive mechanism and the second belt drive mechanism.

[0007] In some embodiments, the first traction belt and / or the second traction belt are flexible flat belts.

[0008] In some embodiments, the guide roller mechanism includes a pair of X-direction guide rollers and a pair of Y-direction guide rollers; the X-direction guide rollers and the Y-direction guide rollers are spaced apart in the vertical direction; the X-direction guide rollers and the Y-direction guide rollers are respectively configured to have adjustable positions and roller spacing.

[0009] In some embodiments, the clamping adjustment mechanism includes a first mounting structure and a second mounting structure. The first mounting structure and the second mounting structure are mounted on a first slide rail unit of the frame. The first slide rail unit includes a first guide rail, a first slider, and a second slider. The first guide rail is fixed to the frame, the first slider is fixed to the first mounting structure, and the second slider is fixed to the second mounting structure. The first slider and the second slider engage with the first guide rail through a slotted engagement. A first part of the clamping airbag is engaged on the outer side of the first mounting structure, and a second part of the clamping airbag is engaged on the outer side of the second mounting structure. The first part and the second part of the clamping airbag are respectively connected to an air source through control valves to achieve operation. A bias force application structure is provided between the first mounting structure and the second mounting structure.

[0010] In some embodiments, the bias force applying structure is a gas spring, a regular spring, a cylinder, or a hydraulic cylinder.

[0011] In some embodiments, the first mounting structure and the second mounting structure are grooved plate structures; one side of the first mounting structure includes a plurality of first clamping rollers extending in the height direction of the first mounting structure, and one side of the second mounting structure includes a plurality of second clamping rollers extending in the height direction of the second mounting structure; the first traction belt is clamped by the first clamping rollers on the first mounting structure side, and the second traction belt is clamped by the second clamping rollers on the second mounting structure side.

[0012] In some embodiments, the first mounting structure and the second mounting structure are further provided with side guide rollers.

[0013] In some embodiments, the tension adjustment mechanism includes a second slide rail unit and a tension airbag. The driven wheel of the first belt drive mechanism and / or the second belt drive mechanism is slidably coupled to the frame via the second slide rail unit. A first portion of the tension airbag is fixed to the frame, while a second portion of the tension airbag is coupled to the wheel frame of the driven wheel. The second portion of the tension airbag is connected to an air source via a tension control valve and is configured to expand or contract to push the driven wheel to move longitudinally along the second slide rail unit. The second slide rail unit includes a second guide rail fixed to the frame and a third slider fixed to the wheel frame of the driven wheel and slidable on the second guide rail.

[0014] In some embodiments, a mounting protective device covering the traction belt mechanism is also included.

[0015] The effects of this invention include, but are not limited to:

[0016] The traction mechanism of this invention employs a flexible structure, preventing damage to the cable. Therefore, when this medium-voltage cable vertical traction machine is introduced into a cable production system, it overcomes the problem of irreversible cable damage and can also meet the traction requirements of cables of different diameters. Furthermore, the medium-voltage cable vertical traction machine reduces noise and significantly improves the utilization rate of the user's factory space after the cable production line is operational.

[0017] The guide roller mechanism reduces cable sway during production, ensuring smooth operation of subsequent processes. The clamping adjustment mechanism retracts the clamping airbags, increasing the gap between the traction belts for easier cable threading and accommodating different cable diameters. The tension adjustment mechanism controls the retraction or tension of the tension airbags by switching the control valve direction, thereby controlling the distance between the driving and driven pulleys and thus the tension of the traction belt. A protective device, such as a protective cover over the traction belt mechanism, ensures safe operation of the production line. Attached Figure Description

[0018] Figure 1 This is a perspective structural diagram of a medium-voltage cable vertical traction machine according to an embodiment of this application.

[0019] Figure 2 This is a perspective view of a medium-voltage cable vertical traction machine according to an embodiment of this application after the protective cover has been removed.

[0020] Figure 3 This is a schematic diagram of the clamping adjustment mechanism according to an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the tension adjustment mechanism according to an embodiment of this application. Detailed Implementation

[0022] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] Reference Figure 1 , Figure 2 One embodiment of the medium-voltage cable vertical traction machine of this application includes a main unit 100 and an electrical control cabinet 200 mounted on a frame. The main unit 100 includes a traction belt mechanism 10, a guide roller mechanism 20, a clamping adjustment mechanism 30, a tension adjustment mechanism 40, and an optional installation protective device 50, such as a protective cover.

[0027] The traction belt mechanism 10 includes a first belt drive mechanism 101 and a second belt drive mechanism 102 arranged opposite to each other on the frame 103. The first belt drive mechanism 101 and the second belt drive mechanism 102 are arranged longitudinally, i.e., in the Z direction. The frame can be, for example, a metal structure or a composite material structure.

[0028] Each belt drive mechanism includes a driving pulley, a driven pulley, and a traction belt. For example, the first belt drive mechanism 101 includes a first driving pulley 111, a first driven pulley 112, and a first traction belt 113; the second belt drive mechanism 102 includes a second driving pulley 121, a second driven pulley 122, and a second traction belt 123. The cable is pulled from the first belt drive mechanism 101 and the second belt drive mechanism 102.

[0029] The first traction belt 113 and the second traction belt 123 are flexible flat belts, connected to the first driving pulley, the first driven pulley, the second driving pulley, and the second driven pulley. The driving pulley of each belt drive mechanism is connected to the frame via a reducer shaft and a tensioning sleeve, while the driven pulley is mounted on a guide rail, minimizing damage to the cables.

[0030] Guide roller mechanisms 20 can be installed at the inlet and outlet of the traction belt mechanism to guide the cable in and out of the traction belt mechanism.

[0031] The structure of the guide roller mechanism 20 is as follows: Figure 2The device may include a pair of X-direction guide rollers 210 (X direction, i.e., front-to-back direction) and a pair of Y-direction guide rollers 220 (Y direction, i.e., left-to-right direction). The X-direction guide rollers and the Y-direction guide rollers may be spaced apart in the Z-direction (vertical direction). Furthermore, the X-direction guide rollers and the Y-direction guide rollers may be configured with adjustable positions and roller spacing to accommodate different cables. For example, the X-direction guide rollers 210 may include a first guide roller 211 and a second guide roller 212; the Y-direction guide rollers 220 may include a first guide roller 221 and a second guide roller 222.

[0032] The clamping adjustment mechanism 30 may include a first mounting structure 311 and a second mounting structure 312. The distance between the first traction belt of the first belt drive mechanism 101 and the second traction belt of the second belt drive mechanism 102 of the traction belt mechanism 10 can be adjusted by adjusting the distance between the two.

[0033] The structure of the clamping adjustment mechanism 30 according to one embodiment of this application is as follows: Figure 3 The diagram shows a first mounting structure 311 and a second mounting structure 312. The first mounting structure 311 and the second mounting structure 312 are mounted on a first slide rail unit 320 of the frame. The first slide rail unit 320 includes a first guide rail 321, a first slider 322, and a second slider 323. The first guide rail 321 is fixed to the frame, the first slider 322 fixes the first mounting structure 311, and the second slider 323 fixes the second mounting structure 312. The first slider 322 and the second slider 323 are engaged with the first guide rail 321 through a slotted engagement. A portion of the clamping airbag 330 is respectively engaged on the outer side of the first mounting structure 311 and the second mounting structure 312 in the lateral direction (Y direction). For example, the outer side of the first mounting structure 311 engages with the first part 331 of the clamping airbag, while the outer side of the second mounting structure 312 engages with the second part 332 of the clamping airbag. The movement of the first part 331 and the second part 332 of the clamping airbag can push the first mounting structure 311 and the second mounting structure 312 closer to each other. The movement of the first part 331 and the second part 332 of the clamping airbag can be achieved by connecting to an air source through control valves. To make the positions of the first mounting structure 311 and the second mounting structure 312 adjustable, a biasing force applying structure 340 can be provided between them. The biasing force applying structure 340 can be, for example, a gas spring, or for example, a common spring, a cylinder, a hydraulic cylinder, etc.

[0034] Both the first mounting structure 311 and the second mounting structure 312 can be slotted plate structures. Taking the first mounting structure 311 as an example, such as... Figure 3As shown, the mounting structure 311 accommodates multiple longitudinally arranged (Z-direction) clamping rollers 350. For example, one side of the first mounting structure 311 accommodates multiple first clamping rollers 351 extending in the height direction of the first mounting structure 311, and one side of the second mounting structure 312 accommodates multiple second clamping rollers 352 extending in the height direction of the second mounting structure 312. The first traction belt 113 is clamped by the first clamping rollers 351 on the first mounting structure 311 side, and the second traction belt 123 is clamped by the second clamping rollers 352 on the second mounting structure 312 side. The first mounting structure 311 and the second mounting structure 312 may also be provided with side stop rollers 360 to prevent the first traction belt and / or the first traction belt from deviating from its normal operating position.

[0035] The clamping adjustment mechanism 30 operates as follows: By switching the direction of the clamping airbag control valve, the volume of the first and second parts of the clamping airbag decreases, causing them to retract. Under the action of the gas spring 340, the gap between the two pressure rollers 350 widens to its maximum, facilitating the passage of cable C between the first and second traction belts. Switching the direction of the control valve causes the clamping airbag to inflate, moving the two pressure rollers inward and reducing the gap. This, in turn, reduces the gap between the first and second traction belts, ensuring sufficient friction between the first and second traction belts and the cable. Driven by the drive wheel of the belt drive mechanism, this propels cable C to move.

[0036] The tension adjustment mechanism 40 is used to tension the driven pulley of the belt drive mechanism when needed, thereby controlling the friction between the first traction belt and / or the second traction belt and the cable C. The structure of the tension adjustment mechanism 40 is as follows: Figure 4 The diagram shows a second slide rail unit 410 and a tension airbag 420. Taking a first belt drive mechanism as an example, its driven wheel 112 is slidably coupled to the frame via the second slide rail unit 410. The first part of the tension airbag is fixed to the frame, while the second part is coupled to the wheel frame of the driven wheel 112. The second part of the tension airbag is connected to an air source via a tension control valve and is configured to expand or contract, thereby pushing the driven wheel 112 to move along the second slide rail unit in the Z direction. The second slide rail unit includes a guide rail 411 fixed to the frame and a third slider 412 fixed to the wheel frame of the driven wheel 112 and slidable on the second guide rail 411.

[0037] The tension adjustment mechanism 40 operates as follows: When the tension control valve switches direction, the second part of the tension airbag retracts, reducing the distance between the driving and driven pulleys of the belt drive mechanism, facilitating the disassembly of the traction belt and the maintenance of other components. When the tension control valve switches direction again, the second part of the tension airbag expands, increasing the distance between the driving and driven pulleys of the belt drive mechanism, ensuring sufficient tension in the traction belt so that the cable C can move under the drive of the driving pulley.

[0038] As described above, both the inlet and outlet have guide roller mechanisms 20, which are adjustable in the front and rear directions. The front and rear guide rollers are adjustable in the front and rear directions to adjust the front and rear position of the cable C, ensuring that the cable is within the effective range of the traction belt. The left and right rollers are used to limit the left and right position of the cable, ensuring that the cable is within the ideal range of the traction equipment.

[0039] The drive wheel of any of the belt drive mechanisms can be directly connected to the main shaft of the reducer 60 via a tensioning sleeve. This design features a simple structure, high alignment accuracy, convenient installation / adjustment / disassembly, high strength, and stable and reliable connection. It also protects the equipment from damage under overload conditions. The reducer 60 can be powered by a servo motor 70.

[0040] The clamping airbag 330 presses against the first and second traction belts clamping the cable C from both sides, and the clamping pressure can be adjusted by the clamping control valve. Since the clamping airbag 330 is flexible, the knot of the cable C can pass smoothly through the first traction belt 113 and the second traction belt 123.

[0041] As described above, the driving wheel of any of the belt drive mechanisms is fixed, while the driven wheel is movable and mounted on the slide rail unit. When the traction belt is disassembled, the tension airbag retracts for easy disassembly and maintenance. During normal operation, the tension airbag expands and extends, and the tension force can be adjusted by the control valve.

[0042] The servo motor 70 can be an AC servo motor, which controls the transmission speed of the cable in a closed loop, thereby matching the transmission speed of the cable with that of the entire line.

[0043] The entire traction mechanism 10 can be protected by a protective cover 50. The protective cover 50 has an opening on the front, which is sealed with a transparent plate to facilitate observation of the internal operation and timely detection of any abnormalities. The protective cover is equipped with an electrical safety lock. When the protective cover door is opened, it sends a signal to the system, which then issues a command to stop the equipment operation.

[0044] The side of the main unit 100 can be equipped with an electrical control cabinet 200 for convenient control of the operation of the medium-voltage cable vertical traction machine. The electrical control cabinet is equipped with an emergency stop button 2001 so that special situations can be handled in a timely manner.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A vertical traction machine for medium-voltage cables, characterized in that, The system includes a main unit (100) and an electrical control cabinet (200) mounted on a frame (103). The main unit (100) includes a traction belt mechanism (10), a guide roller mechanism (20), a clamping adjustment mechanism (30), and a tension adjustment mechanism (40). The traction belt mechanism (10) includes a pair of first belt drive mechanisms (101) and second belt drive mechanisms (102) mounted opposite each other on the frame (103). The first belt drive mechanism (101) and the second belt drive mechanism (102) are arranged longitudinally. The guide roller mechanism (20) is respectively located at the entrance and exit of the traction belt mechanism. The clamping adjustment mechanism (30) includes a first mounting structure (311) and a second mounting structure (312). The distance between the first traction belt of the first belt drive mechanism (101) and the second traction belt of the second belt drive mechanism (102) can be adjusted by adjusting the distance between the first mounting structure (311) and the second mounting structure (312).

2. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, The first belt drive mechanism (101) includes a first driving pulley (111), a first driven pulley (112) and a first traction belt (113); the second belt drive mechanism (102) includes a second driving pulley (121), a second driven pulley (122) and a second traction belt (123); the cable is pulled from the first belt drive mechanism (101) and the second belt drive mechanism (102).

3. The medium-voltage cable vertical traction machine according to claim 2, characterized in that, The first traction belt (113) and / or the second traction belt (123) are flexible flat belts.

4. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, The guide roller mechanism (20) includes a pair of X-direction guide rollers (210) and a pair of Y-direction guide rollers (220); the X-direction guide rollers and the Y-direction guide rollers are spaced apart in the vertical direction; the X-direction guide rollers and the Y-direction guide rollers are respectively configured to have adjustable positions and roller spacing.

5. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, The clamping adjustment mechanism (30) includes a first mounting structure (311) and a second mounting structure (312). The first mounting structure (311) and the second mounting structure (312) are mounted on a first slide rail unit (320) of the frame. The first slide rail unit (320) includes a first guide rail (321), a first slider (322), and a second slider (323). The first guide rail (321) is fixed to the frame, the first slider (322) is fixed to the first mounting structure (311), and the second slider (323) is fixed to the second mounting structure (311). 2) The first slider (322) and the second slider (323) are engaged with the first guide rail (321) through a slot engagement; the first part (331) of the clamping airbag is engaged on the outer side of the first mounting structure (311), and the second part (332) of the clamping airbag is engaged on the outer side of the second mounting structure (312). The first part (331) and the second part (332) of the clamping airbag are respectively connected to the air source through the control valve to realize the action; a bias force application structure (340) is provided between the first mounting structure (311) and the second mounting structure (312).

6. The medium-voltage cable vertical traction machine according to claim 5, characterized in that, The bias force application structure (340) is a gas spring, a regular spring, a cylinder, or a hydraulic cylinder.

7. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, The first mounting structure (311) and the second mounting structure (312) are grooved plate structures; one side of the first mounting structure (311) includes a plurality of first pressing rollers (351) extending in the height direction of the first mounting structure (311), and one side of the second mounting structure (312) includes a plurality of second pressing rollers (352) extending in the height direction of the second mounting structure (312); the first traction belt (113) is pressed by the first pressing rollers (351) on the side of the first mounting structure (311), and the second traction belt (123) is pressed by the second pressing rollers (352) on the side of the second mounting structure (312).

8. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, The first mounting structure (311) and the second mounting structure (312) are also provided with side guard rollers (360).

9. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, The tension adjustment mechanism (40) includes a second slide rail unit (410) and a tension airbag (420). The driven wheel of the first belt drive mechanism and / or the second belt drive mechanism is slidably coupled to the frame via the second slide rail unit. The first part of the tension airbag is fixed to the frame, while the second part of the tension airbag is coupled to the wheel frame of the driven wheel. The second part of the tension airbag is connected to an air source via a tension control valve and is configured to expand or contract to push the driven wheel to move longitudinally along the second slide rail unit. The second slide rail unit includes a second guide rail (411) fixed to the frame and a third slider (412) fixed to the wheel frame of the driven wheel and slidable on the second guide rail (411).

10. The medium-voltage cable vertical traction machine according to claim 1, characterized in that, It also includes a mounting protective device (50) covering the traction belt mechanism (10).

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