A pulley mechanism for conveying cables

Abstract

The present invention discloses a pulley mechanism for conveying cables, which relates to the technical field of power transmission and transformation, and includes a frame, a limiter and a pulley. The frame is connected to a supporting member inside, and the limiter is symmetrically arranged on the upper part of the supporting member. Bearings are installed at both ends of the pulley, and the pulley is mounted between the limiters through the bearings, so that the pulley can roll when the cable moves. The pulley mechanism for conveying cables is provided with a limiter on the supporting member, and a rollable pulley is installed between the limiters. During the process of the cable being pulled and moved during laying, the cable moves on the pulley, and the friction is rolling friction. Compared with the hard friction commonly existing in the prior art, the friction force of rolling friction is much smaller than that of hard friction, which saves labor on the one hand and reduces the wear on the cable surface on the other hand.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission and transformation, in particular to a pulley mechanism for transmitting cables. Background Art

[0002] In the field of power transmission and transformation, cables usually need to be laid on cable racks, and when the cables are laid, an external pulling device is usually used to pull one end of the cable. At this time, the cable is already in the cable trough reserved in the cable rack. When the cable is pulled and moved, it is hard friction, which not only has great resistance, but also causes damage to the outer sheath of the cable. For this reason, we propose a pulley mechanism for conveying cables. After using this mechanism, it can greatly reduce the friction of the cable during movement. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a pulley mechanism for conveying cables, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A pulley mechanism for conveying cables, comprising a frame, wherein a supporting member is connected to the interior of the frame, and further comprising:

[0005] A limiting member, wherein the limiting member is symmetrically arranged on the upper part of the supporting member;

[0006] A pulley, wherein bearings are installed at both ends of the pulley, and the pulley is mounted between the limit members through the bearings so that the pulley can roll when the cable moves.

[0007] Furthermore, a plurality of wall fixing holes are reserved on the back of the frame, and the frame can be fixed on the wall through the wall fixing holes.

[0008] Furthermore, pin holes 1 are reserved on both sides of the wall fixing hole and the end of the supporting member, and a pin shaft 1 is interspersed in the pin hole 1.

[0009] Furthermore, a cable groove is reserved on the upper part of the supporting member, and slide grooves are provided on both sides of the cable groove in the upper part of the supporting member, a pin hole 2 is penetrated through the interior of the supporting member, and the pin hole 2 is connected to the slide groove, the limiting member uses the seat body as a carrier, and a plug rod is connected to the bottom end of the seat body, the plug rod is located in the slide groove, and a pin hole 3 is penetrated through the interior of the plug rod, and a pin shaft 2 is interspersed inside the pin hole 2 and the pin hole 3.

[0010] Furthermore, a bearing seat is connected to the top of the seat body, a limiting groove is opened inside the bearing seat, and limiting rods are connected to the top of the seat body and on both sides of the bearing seat, and the bearing is rollingly arranged inside the limiting groove.

[0011] Furthermore, the pulley includes pulley 1 and pulley 2, and the ends of pulley 1 and pulley 2 that are away from each other are both connected to a wheel axle, and the bearing is rotatably connected to the outside of the wheel axle.

[0012] Furthermore, the adjacent ends of the pulley 1 and the pulley 2 are connected via a plug-in movable component.

[0013] Furthermore, the plug-in movable component includes a slot reserved at one end of the pulley and a convex column integrally connected to the two ends of the pulley, and the convex column is inserted into the slot and adapted thereto.

[0014] Further, the supporting member is provided with a positioning slot, one end of the pin shaft 2 is provided with a screw and a nut, the pin shaft 2 passes through a plurality of positioning slots and a pin hole 3 and is connected and fixed with the nut, the screw and the nut of the pin shaft 2 are arranged on the left and right sides of the supporting member, and the distance of the pin shaft 2 is adjusted by the positioning slot.

[0015] The present invention provides a pulley mechanism for conveying cables. Compared with the prior art, it has the following beneficial effects:

[0016] The pulley mechanism for conveying cables is provided with a limit piece on a supporting member, and a rollable pulley is installed between the limit pieces. When the cable is pulled and moved during laying, the cable moves on the pulley, and the friction is rolling friction. Compared with the hard friction commonly existing in the prior art, the friction force of rolling friction is much smaller than the hard friction, which saves labor on one hand, and reduces the wear on the cable surface on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the connection structure between the frame and the supporting member in the present invention;

[0019] Figure 3 It is a schematic diagram of the disassembly of the supporting member and the limiting member in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the limiting member in the present invention;

[0021] Figure 5 It is a schematic diagram of the pulley being located inside the limiting member in the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the pulley in the present invention.

[0023] Figure 7 It is a schematic diagram of the second adjustment of the pin shaft of the structure of the present invention.

[0024] Figure 8Schematic diagram of a needle roller bearing according to the structure of the present invention.

[0025] In the figure: 1, frame; 11, wall fixing hole; 12, pin hole 1; 13, pin shaft 1; 2, supporting member; 21, slide groove; 22, pin hole 2; 23, cable groove; 24, pin shaft 2; 3, limit member; 31, seat body; 32, plug rod; 33, pin hole 3; 34, bearing seat; 35, limit groove; 36, limit rod; 4, pulley; 41, pulley 1; 42, pulley 2; 43, axle; 44, slot; 45, boss; 5, bearing; 6, cable, 241 screw; 242 nut, 243 positioning slide groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6 The present invention provides a technical solution: a pulley mechanism for conveying cables, mainly composed of a frame 1, a supporting member 2, a limiting member 3, and a pulley 4. When laying the cable, the whole frame 1 is fixed on the wall through the wall fixing hole 11 reserved on the back of the frame 1, and a wall fixing nail is driven into the wall fixing hole 11. After fixing, a pin hole 12 of a suitable height is selected on the frame 1, the supporting member 2 is placed in the frame 1, and after the pin hole 12 of the supporting member 2 is aligned with the pin hole 12 of just the right height, a pin shaft 13 is inserted to complete the basic installation;

[0028] The upper part of the supporting member 2 is reserved with a plurality of cable slots 23 and slide slots 21. The slide slots 21 are distributed on both sides of the cable slot 23. One cable slot 23 corresponds to four slide slots 21. A second pin hole 22 is provided inside the supporting member 2. The second pin hole 22 is connected to the slide slot 21. The limiting member 3 includes a seat body 31. The bottom end of the seat body 31 is connected with an insertion rod 32. The insertion rod 32 is located inside the slide slot 21. A third pin hole 33 is provided inside the insertion rod 32. A second pin shaft 24 is provided inside the second pin hole 22 and the third pin hole 33. After insertion, the position of the limiting member 3 is fixed.

[0029] A bearing block 34 is connected to the top end of the seat body 31. A limiting groove 35 is formed inside the bearing block 34. The limiting groove 35 is in a "U" - shaped structure. Limiting rods 36 are connected to both sides of the bearing block 34 and at the top end of the seat body 31. The bearing 5 is rotatably arranged inside the limiting groove 35. The pulley 4 includes a first pulley 41 and a second pulley 42. Wheel shafts 43 are connected to the opposite ends of the first pulley 41 and the second pulley 42. The bearing 5 is rotatably connected to the outside of the wheel shaft 43. The adjacent ends of the first pulley 41 and the second pulley 42 are connected through a clamping groove 44 and a convex column 45. The convex column 45 is inserted into the clamping groove 44 and is adapted to it.

[0030] Please read Figure 7-8 As shown, the supporting member 2 is provided with a positioning sliding groove 243. One end of the second pin shaft 24 is provided with a screw male 241 and a nut 242. The second pin shaft 24 passes through a plurality of positioning sliding grooves 243 and the third pin hole 33 and is fixedly connected to the nut 242. The screw male 241 and the nut 242 of the second pin shaft 24 are arranged on the left and right sides of the supporting member 2. The second pin shaft 24 adjusts the distance through the positioning sliding groove 243.

[0031] It should be noted that; by adjusting through the positioning sliding groove 243, the distance between the two limiting members can be adjusted, so that different pulley groups can be set. Different pulley groups can support the conveyance of different cables. The pulley group is preferably a needle bearing because such a bearing is relatively long and has a relatively large rotation area.

[0032] During use, after fixing the limiting member 3, the pulley 4 with bearings 5 at both ends is placed inside the limiting groove 35. After being placed, the pulley 4 can still roll. At this time, the cable 6 to be pulled is placed on the pulley 4. When the cable 6 is laid and pulled by an external force, when the cable 6 moves, the pulley 4 rolls. Compared with directly pulling the cable 6 in the cable groove 23, the friction is smaller. On the one hand, it saves effort, and on the other hand, it reduces the wear on the surface of the cable 6. When the cable 6 is laid, the staff can pull out the second pin shaft 24. After releasing the restraint on the limiting member 3, the limiting member 3 can be pulled to both sides, so that the two limiting members 3 gradually move away from each other. During the moving - away process, the clamping groove 44 and the convex column 45 are separated. After separation, the cable 6 will automatically fall into the cable groove 23, and then the limiting member 3 and the pulley 4 can be taken away. This structure can be reused.

Claims

1. A pulley mechanism for conveying cables, comprising a frame (1), wherein a supporting member (2) is connected to the interior of the frame (1), characterized in that: Also includes: A limiting member (3), wherein the limiting member (3) is symmetrically arranged on the upper part of the supporting member (2); A pulley (4), wherein bearings (5) are installed at both ends of the pulley (4), and the pulley (4) is mounted between the limit members (3) via the bearings (5), so that the pulley (4) can roll when the cable moves; A cable groove (23) is reserved at the upper part of the supporting member (2), and slide grooves (21) are arranged on both sides of the cable groove (23) at the upper part of the supporting member (2), a second pin hole (22) is arranged through the interior of the supporting member (2), and the second pin hole (22) is communicated with the slide groove (21), the limiting member (3) is based on the seat body (31), the bottom end of the seat body (31) is connected with an insertion rod (32), the insertion rod (32) is located inside the slide groove (21), and a third pin hole (33) is arranged through the interior of the insertion rod (32), and a second pin shaft (24) is arranged in the interior of the second pin hole (22) and the third pin hole (33); The supporting member (2) is provided with a positioning slot (243), one end of the second pin shaft (24) is provided with a screw (241) and a nut (242), the second pin shaft (24) passes through a plurality of positioning slots (243) and a third pin hole (33) and is connected and fixed with the nut (242), the screw (241) and the nut (242) of the second pin shaft (24) are arranged on the left and right sides of the supporting member (2), and the distance of the second pin shaft (24) is adjusted through the positioning slot (243).

2. A pulley mechanism for conveying cables according to claim 1, characterized in that: A plurality of wall fixing holes (11) are reserved on the back of the frame (1), and the frame (1) can be fixed on the wall through the wall fixing holes (11).

3. A pulley mechanism for conveying cables according to claim 2, characterized in that: Pin holes (12) are reserved on both sides of the wall fixing hole (11) and at the end of the supporting member (2), and pin shafts (13) are inserted through the pin holes (12).

4. A pulley mechanism for conveying cables according to claim 1, characterized in that: The top end of the seat body (31) is connected to a bearing seat (34), a limiting groove (35) is provided inside the bearing seat (34), and limiting rods (36) are connected to the top end of the seat body (31) and on both sides of the bearing seat (34), and the bearing (5) is rollingly arranged inside the limiting groove (35).

5. A pulley mechanism for conveying cables according to claim 1, characterized in that: The pulley (4) comprises a pulley 1 (41) and a pulley 2 (42); the ends of the pulley 1 (41) and the pulley 2 (42) which are separated from each other are both connected to a wheel axle (43); and the bearing (5) is rotatably connected to the outside of the wheel axle (43).

6. A pulley mechanism for conveying cables according to claim 5, characterized in that: The adjacent ends of the pulley 1 (41) and the pulley 2 (42) are connected via a plug-in movable component.

7. A pulley mechanism for conveying cables according to claim 6, characterized in that: The plug-in movable assembly comprises a slot (44) reserved at the end of pulley one (41), and a convex column (45) integrally connected to the end of pulley two (42); the convex column (45) is inserted into the slot (44) and fits in with it.

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