An easy-to-operate low-voltage conductor automatic wire retracting and releasing device

Abstract

The utility model relates to the technical field of automatic winding and releasing devices for low-voltage wires, and specifically to an automatic winding and releasing device for low-voltage wires that is easy to operate, comprising: a wire reel, the wire reel is sleeved on the shaft body of a rotating shaft, the rotating shaft is arranged in the inner ring of a bearing, the bearing is rotatably connected to a bearing seat, the bearing seat is installed on the inner wall of a shell of a casing, a screw rod is rotatably connected to the surface of the casing, a cross bar is fixed to the surface of the casing, a slider is slidably connected to the cross bar of the casing, a screw hole is opened on the surface of the slider, the screw rod is rotatably connected to the screw hole, and a screw motor is arranged at one end of the screw rod; the beneficial effect is that when poor lubrication occurs between the bearing and the bearing seat, the valve plate automatically retracts completely into the valve groove, so that the oil hole is connected, and the lubricating oil stored in the oil groove is automatically added to the contact surface between the bearing and the bearing seat, thereby avoiding the bearing from running in a poorly lubricated state for a long time, resulting in excessive wear of the bearing and the bearing seat, which affects the smooth operation of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic retracting and releasing devices for low-voltage conductors, in particular to an automatic retracting and releasing device for low-voltage conductors which is easy to operate. Background Art

[0002] The cable reel is a cable storage tool that is very common in on-site construction and is the most common tool for cable storage. However, its own weight and various conditions of cables on the construction site often cause many problems in actual operations. In order to facilitate the automatic retraction and release of low-voltage wires, the cable reel can be placed on a rotating shaft, and the rotating shaft is driven by a motor to rotate, thereby automatically winding the low-voltage wire on the reel. However, this simple self-winding and retracting device will cause uneven winding of the wire on the reel due to the repeated winding of the cable in one position.

[0003] In the prior art, a screw rod is provided on the inner wall of the shell of the automatic wire-winding and unwinding device, and a slider is provided on the screw rod. The wire passes through the slider, and the slider is driven to reciprocate by the even-speed forward and reverse rotation of the screw rod, so that the cable can be evenly wound on the winding reel. When it is necessary to unwind the wire, the rotating shaft drives the winding reel to rotate in the opposite direction, so that automatic unwinding can be conveniently realized. This low-pressure guided automatic wire-winding and unwinding device is easy to operate and has high working efficiency. At the same time, the surface of the rotating shaft is sleeved in the bearing, and the bearing is rotatably connected in the bearing seat. The bearing seat is installed on the surface of the casing, and can provide shock-absorbing and lubrication functions for the rotating shaft.

[0004] However, the low-voltage wire automatic retracting and releasing device which is easy to operate in the prior art needs to be lubricated with lubricating oil between the bearing and the bearing seat. When the lubricating oil between the bearing and the bearing seat is consumed, the bearing and the bearing seat will be in a poor lubrication state. If it runs in this state for a long time, the contact surface between the bearing seat and the bearing will be aggravated by wear, thereby causing the bearing and the rotating shaft to shift, thereby affecting the smooth operation of the low-voltage wire automatic retracting and releasing device which is easy to operate. Utility Model Content

[0005] The utility model aims to provide a low-voltage conductor automatic retracting and releasing device which is easy to operate, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an easy-to-operate low-voltage wire automatic reeling and winding device, comprising: a wire reel, the wire reel is sleeved on the shaft body of the rotating shaft, the rotating shaft is arranged in the bearing inner ring of the bearing, the bearing is rotatably connected in the bearing seat, the bearing seat is installed on the inner wall of the shell of the casing, the surface of the casing is rotatably connected with a screw rod, the surface of the casing is fixed with a cross bar, a slider is slidably connected to the cross bar of the casing, a screw hole is provided on the surface of the slider, the screw rod is rotatably connected in the screw hole, a screw motor is provided at one end of the screw rod, an oil groove is provided in the inner wall of the bearing seat, an oil hole is provided on the surface of the bearing seat, a valve groove is provided on the inner wall of the oil hole, and a valve plate is slidably connected in the valve groove.

[0007] Preferably, the oil holes are provided on the surface of the bearing seat in contact with the bearing, and two groups of oil holes are provided, and the two groups of oil holes are symmetrically distributed about the rotation axis.

[0008] Preferably, a paddle window is provided on the surface of the bearing seat in contact with the bearing, the paddle window is connected to the valve slot, a paddle is slidably connected in the paddle window, and the paddle is fixed on the surface of the valve plate.

[0009] Preferably, a reed is fixed to one end of the valve plate, and the other end of the reed is fixed to the inner wall of the valve slot.

[0010] Preferably, a lubricating oil adding port is provided on the top surface of the bearing seat, the lubricating oil adding port is connected to the oil groove, and a sealing cover is provided on the surface of the lubricating oil adding port.

[0011] Preferably, a wire passing window is provided on the surface of the casing, and a wire winding reel motor is provided on the inner wall of the casing.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides an easy-to-operate low-voltage wire automatic retracting and releasing device. When poor lubrication occurs between the bearing and the bearing seat, the valve plate automatically retracts completely into the valve groove to allow the oil hole to pass through, so that the lubricating oil stored in the oil groove is automatically added to the contact surface between the bearing and the bearing seat, thereby preventing the bearing from running in a poorly lubricated state for a long time, causing excessive wear of the bearing and the bearing seat, and affecting the smooth operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cable reel structure;

[0016] Figure 3 It is a schematic diagram of the bearing seat structure;

[0017] Figure 4It is a schematic diagram of the cross-sectional structure of the bearing seat;

[0018] Figure 5 for Figure 4 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: casing 1, wire window 2, wire reel 3, screw rod 4, slider 5, screw hole 6, wire reel motor 7, rotating shaft 8, bearing 9, bearing seat 10, oil groove 11, oil hole 12, valve groove 13, valve plate 14, reed 15, paddle window 16, paddle 17, lubricating oil filling port 18, cover 19. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figures 1 to 5 The utility model provides a technical solution: an automatic low-voltage wire retracting and releasing device that is easy to operate, comprising: a wire reel 3, the wire reel 3 is sleeved on the shaft body of a rotating shaft 8, the rotating shaft 8 is arranged in the inner ring of a bearing 9, the bearing 9 is rotatably connected in a bearing seat 10, the bearing seat 10 is installed on the inner wall of a shell of a casing 1, a screw rod 4 is rotatably connected to the surface of the casing 1, a cross bar is fixed to the surface of the casing 1, a slider 5 is slidably connected to the cross bar of the casing 1, a screw hole 6 is opened on the surface of the slider 5, the screw rod 4 is rotatably connected in the screw hole 6, a screw motor is arranged at one end of the screw rod 4, an oil groove 11 is opened in the inner wall of the bearing seat 10, and an oil Hole 12, a valve groove 13 is provided on the inner wall of the oil hole 12, a valve plate 14 is slidably connected in the valve groove 13, the oil hole 12 is provided on the surface where the bearing seat 10 contacts the bearing 9, two groups of oil holes 12 are provided, and the two groups of oil holes 12 are symmetrically distributed about the rotating shaft 8, a paddle window 16 is provided on the surface where the bearing seat 10 contacts the bearing 9, the paddle window 16 is connected with the valve groove 13, a paddle 17 is slidably connected in the paddle window 16, and the paddle 17 is fixed on the surface of the valve plate 14, a reed 15 is fixed at one end of the valve plate 14, and the other end of the reed 15 is fixed on the inner wall of the valve groove 13, a wire passing window 2 is provided on the surface of the casing 1, and a winding reel motor 7 is arranged on the inner wall of the casing 1.

[0023] In actual use, the low-voltage wire extends into the casing 1 from the wire passing window 2, passes through the surface of the slider 5, and is wound on the surface of the cable reel 3. When the cable reel motor 7 is turned on, a belt transmission mechanism is provided between the transmission shaft of the cable reel motor 7 and the shaft body of the rotating shaft 8. The transmission shaft of the cable reel motor 7 drives the rotating shaft 8 to rotate through the belt transmission mechanism, and the rotating shaft 8 drives the cable reel 3 to rotate, so that more low-voltage wire is wound on the surface of the cable reel 3. At the same time, the screw motor connected to the screw rod 4 is synchronously turned on, and the screw motor drives the screw rod 4 to rotate in the screw hole 6, so that the slider 5 slides along the cross bar. The sliding of the slider 5 makes the low-voltage wire wound on the cable reel 3 evenly distributed, so Avoid low-voltage wires from piling up at one position of the cable reel 3, causing problems such as excessive winding; at the same time, when the rotating shaft 8 drives the cable reel 3 to rotate, the rotating shaft 8 is inserted into the inner ring of the bearing 9 through an interference fit, and the rotation between the inner ring and the outer ring of the bearing 9, as well as the rotation between the bearing 9 and the rotating shaft 8, protects the rotating shaft 8 from wear as much as possible. However, since the contact surface between the bearing 9 and the bearing seat 10 is in an open state, the lubricating oil between the contact surfaces of the bearing 9 and the bearing seat 10 will gradually evaporate. When the lubricating oil between the bearing 9 and the bearing seat 10 is consumed more, the bearing 9 and the bearing seat 10 are in a poorly lubricated state, and the bearing 9 and the paddle 17 are also in a poorly lubricated state. As a result, the friction between the bearing 9 and the paddle 17 becomes larger. When the friction between the bearing 9 and the paddle 17 is greater than the elastic force of the reed 15 on the valve plate 14, one group of paddles 17 will slide in the paddle window 16 to the other side of the paddle window 16, thereby driving the valve plate 14 to slide and move the valve plate 14 away from the oil hole 12. This allows the lubricating oil stored in the oil groove 11 to be applied to the surface of the bearing 9 through the oil hole 12, and through the rotation of the bearing 9 and the spread of the lubricating oil, it is evenly squeezed on the contact surface of the bearing 9 and the bearing seat 10, forming an oil film between the bearing 9 and the bearing seat 10, so that the bearing 9 and the bearing seat 10 are well lubricated, and the bearing 9 and the paddle 17 are also well lubricated. When the bearing 9 and the bearing seat 10 are poorly lubricated, the valve plate 14 is automatically and completely retracted into the valve groove 13, so that the oil hole 12 is connected, and the lubricating oil stored in the oil groove 11 is automatically added to the contact surface of the bearing 9 and the bearing seat 10, thereby preventing the bearing 9 from running under poor lubrication for a long time, resulting in excessive wear of the bearing 9 and the bearing seat 10, and affecting the smooth operation of the device.

[0024] Embodiment 2

[0025] On the basis of the first embodiment, in order to store lubricating oil in the oil tank 11 , a lubricating oil adding port 18 is opened on the top surface of the bearing seat 10 , the lubricating oil adding port 18 is connected to the oil tank 11 , and a sealing cover 19 is arranged on the surface of the lubricating oil adding port 18 .

[0026] The inner wall of the cover 19 and the surface of the lubricating oil adding port 18 are provided with threads. The cover 19 is removed from the lubricating oil adding port 18 by screwing the cover 19, and then the lubricating oil is added into the oil tank 11 through the lubricating oil adding port 18, and then the cover 19 is screwed back to complete the storage of the lubricating oil in the oil tank 11.

[0027] In actual use, the low-voltage wire extends into the casing 1 from the wire passing window 2, passes through the surface of the slider 5, and is wound on the surface of the cable reel 3. When the cable reel motor 7 is turned on, a belt transmission mechanism is provided between the transmission shaft of the cable reel motor 7 and the shaft body of the rotating shaft 8. The transmission shaft of the cable reel motor 7 drives the rotating shaft 8 to rotate through the belt transmission mechanism, and the rotating shaft 8 drives the cable reel 3 to rotate, so that more low-voltage wire is wound on the surface of the cable reel 3. At the same time, the screw motor connected to the screw rod 4 is synchronously turned on, and the screw motor drives the screw rod 4 to rotate in the screw hole 6, so that the slider 5 slides along the cross bar. The sliding of the slider 5 makes the low-voltage wire wound on the cable reel 3 evenly distributed, so Avoid low-voltage wires from piling up at one position of the cable reel 3, causing problems such as excessive winding; at the same time, when the rotating shaft 8 drives the cable reel 3 to rotate, the rotating shaft 8 is inserted into the inner ring of the bearing 9 through an interference fit, and the rotation between the inner ring and the outer ring of the bearing 9, as well as the rotation between the bearing 9 and the rotating shaft 8, protects the rotating shaft 8 from wear as much as possible. However, since the contact surface between the bearing 9 and the bearing seat 10 is in an open state, the lubricating oil between the contact surfaces of the bearing 9 and the bearing seat 10 will gradually evaporate. When the lubricating oil between the bearing 9 and the bearing seat 10 is consumed more, the bearing 9 and the bearing seat 10 are in a poorly lubricated state, and the bearing 9 and the paddle 17 are also in a poorly lubricated state. As a result, the friction between the bearing 9 and the paddle 17 becomes larger. When the friction between the bearing 9 and the paddle 17 is greater than the elastic force of the reed 15 on the valve plate 14, one group of paddles 17 will slide in the paddle window 16 to the other side of the paddle window 16, thereby driving the valve plate 14 to slide and move the valve plate 14 away from the oil hole 12. This allows the lubricating oil stored in the oil groove 11 to be applied to the surface of the bearing 9 through the oil hole 12, and through the rotation of the bearing 9 and the spread of the lubricating oil, it is evenly squeezed on the contact surface of the bearing 9 and the bearing seat 10, forming an oil film between the bearing 9 and the bearing seat 10, so that the bearing 9 and the bearing seat 10 are well lubricated, and the bearing 9 and the paddle 17 are also well lubricated. When the friction force is less than the elastic force of the spring 15, the valve plate 14 is pushed back to its original position by the spring 15, and extends into the oil hole 12 again to block the oil hole 12, thereby preventing the lubricating oil in the oil tank 11 from being excessively wasted. When the bearing 9 and the bearing seat 10 are poorly lubricated, the valve plate 14 is automatically and completely retracted into the valve groove 13 to connect the oil hole 12, so that the lubricating oil stored in the oil tank 11 is automatically added to the contact surface of the bearing 9 and the bearing seat 10, thereby preventing the bearing 9 from running in a poorly lubricated state for a long time, resulting in excessive wear of the bearing 9 and the bearing seat 10, and affecting the smooth operation of the device.The inner wall of the cover 19 and the surface of the lubricating oil adding port 18 are provided with threads. The cover 19 is removed from the lubricating oil adding port 18 by screwing the cover 19, and then the lubricating oil is added into the oil tank 11 through the lubricating oil adding port 18, and then the cover 19 is screwed back, and the lubricating oil is stored in the oil tank 11. ;

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-operate low-voltage conductor automatic retracting and releasing device, comprising: A cable reel, wherein the cable reel is sleeved on the shaft body of a rotating shaft, the rotating shaft is arranged in an inner ring of a bearing, the bearing is rotatably connected in a bearing seat, the bearing seat is installed on the inner wall of a casing, a screw rod is rotatably connected to the surface of the casing, a cross bar is fixed to the surface of the casing, a slider is slidably connected to the cross bar of the casing, a screw hole is provided on the surface of the slider, the screw rod is rotatably connected in the screw hole, a screw motor is provided at one end of the screw rod, and the characteristic is that an oil groove is provided in the inner wall of the bearing seat, an oil hole is provided on the surface of the bearing seat, a valve groove is provided on the inner wall of the oil hole, and a valve plate is slidably connected in the valve groove.

2. The easy-to-operate low-voltage conductor automatic retracting and releasing device according to claim 1, characterized in that: The oil holes are arranged on the surface of the bearing seat in contact with the bearing, and two groups of oil holes are arranged, and the two groups of oil holes are symmetrically distributed about the rotation axis.

3. The easy-to-operate low-voltage conductor automatic retracting and releasing device according to claim 1 is characterized in that: A paddle window is provided on the surface of the bearing seat in contact with the bearing, the paddle window is connected with the valve slot, a paddle is slidably connected in the paddle window, and the paddle is fixed on the surface of the valve plate.

4. The easy-to-operate low-voltage conductor automatic retracting and releasing device according to claim 1, characterized in that: A reed is fixed to one end of the valve plate, and the other end of the reed is fixed to the inner wall of the valve groove.

5. The easy-to-operate low-voltage conductor automatic retracting and releasing device according to claim 1 is characterized in that: A lubricating oil adding port is provided on the top surface of the bearing seat, the lubricating oil adding port is connected with the oil groove, and a sealing cover is provided on the surface of the lubricating oil adding port.

6. The easy-to-operate low-voltage conductor automatic retracting and releasing device according to claim 1, characterized in that: A wire passing window is provided on the surface of the casing, and a wire winding reel motor is arranged on the inner wall of the casing.

Images