CN111720719A

CN111720719A - Device for lubricating bearing

Info

Publication number: CN111720719A
Application number: CN202010620706.3A
Authority: CN
Inventors: 金桂荣
Original assignee: Shengzhou Panchen Machinery Technology Co ltd
Current assignee: Shengzhou Panchen Machinery Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-09-29

Abstract

The invention discloses a device for bearing lubrication, which comprises a shell, wherein a transmission cavity with an upward opening is arranged in the shell, a rotating disc is rotatably connected in the transmission cavity, a threaded rod rotatably connected to the left wall of the rotating disc is rotatably connected to the right wall of the rotating disc, symmetrical clamping plates are in threaded connection with the threaded rod, a clamping and jacking spring is connected between the adjacent clamping plates, a bearing fixed on the clamping plate is arranged on the upper side of the shell, and a belt cavity positioned on the left side of the transmission cavity is arranged in the shell.

Description

Device for lubricating bearing

Technical Field

The invention relates to the field of bearing lubrication, in particular to a device for bearing lubrication.

Background

With the progress of the times, more and more machines are applied to life, the mechanical transmission in the machines usually needs to use the transmission of a shaft, and when the shaft is rotationally connected to a chassis or other places, in order to reduce heat and loss generated between the rotation of the shaft and the chassis due to friction, a bearing needs to be connected between the shaft and the chassis, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.

The bearing is used as a mechanical part and needs to be lubricated, the lubrication of the bearing is generally carried out by dripping oil into the ball of the bearing and then rotating the bearing, but the lubrication of the bearing which is generally disassembled at present is generally finished manually, and if the bearing is lubricated by a large number of bearings with different specifications, the manual operation is relatively slow.

Disclosure of Invention

The technical problem is as follows: manually operated lubricated bearings are relatively slow, and the large number and specifications of bearing lubrication have large manual operation pressure.

In order to solve the problems, the device for lubricating the bearing is designed in the embodiment, and comprises a shell, wherein a transmission cavity with an upward opening is arranged in the shell, a rotating disc is rotatably connected in the transmission cavity, a threaded rod rotatably connected to the left wall of the rotating disc is rotatably connected to the right wall of the rotating disc, symmetrical clamping plates are in threaded connection with the threaded rod, clamping top pressure springs are connected between the adjacent clamping plates, a bearing fixed on the clamping plates is arranged on the upper side of the shell, a belt cavity positioned on the left side of the transmission cavity is arranged in the shell, a motor is fixedly arranged in the left wall of the belt cavity, a driving shaft is fixedly arranged on an output shaft on the right side of the motor, a rotating device capable of driving the bearing to rotate through forward rotation of the driving shaft driven by the motor is arranged in the shell, and the rotating device capable of driving the two clamping plates to move inwards through reverse rotation of the driving shaft driven by the The movable clamping device is characterized in that a jacking cavity with an upward opening is arranged in the shell, a jacking plate is connected in the jacking cavity in a sliding mode, a jacking spring is connected between the lower side of the jacking plate and the bottom wall of the jacking cavity, a fixing frame located on the right side of the bearing is arranged on the upper side of the shell, a rotary table is hinged to the fixing frame, a mechanical rod is fixedly arranged on the upper side of the rotary table, an oil outlet capable of being used for dripping lubricating oil is fixedly arranged on the left side of the mechanical rod, a mechanical rod torsion spring connected to the front wall and the rear wall of the fixing frame is wound on the rotary table, and a lubricating device capable of dripping lubricating oil onto the bearing through the oil outlet is arranged in the shell and capable of descending through the jacking plate.

Wherein, the rotating device comprises a driving shaft which is rotatably connected in the left wall of the transmission cavity, the driving shaft is internally provided with an extending cavity in an annular distribution way, the driving shaft is internally provided with an inner cavity in an annular distribution way, the inner cavity is rotatably connected with a rotating shaft, the rotating shaft is fixedly provided with a blade which can extend into the extending cavity, the blade also can extend into the inner cavity, the rotating shaft is wound with a clutch torsion spring connected with the driving shaft and the driving shaft, the driving shaft is fixedly provided with a driving bevel gear, the lower side of the rotating disc is rotatably connected with a driven shaft, the lower side of the driven shaft is fixedly provided with a driven bevel gear which is engaged and connected with the driving bevel gear, the lower side of the rotating disc is provided with sliding cavities symmetrically arranged at the two sides of the driven shaft, the sliding cavities are internally and slidably connected with fixed rods at the side edges of the driven shaft, and the, the right side of the rotating disc is fixedly provided with a left permanent magnet, and a right permanent magnet positioned on the right side of the left permanent magnet is arranged in the machine shell.

The clamping device comprises a rotating shaft which is rotatably connected into the right wall of the belt cavity, an upper belt wheel is fixedly arranged on the left side of the rotating shaft, a lower belt wheel is fixedly arranged on the drive bevel gear, a belt is connected between the lower belt wheel and the upper belt wheel, an air cylinder positioned on the upper side of the motor is fixedly arranged in the left wall of the belt cavity, the right side of the air cylinder is connected with a rotating push rod which is in splined connection with the upper belt wheel and the rotating shaft, and the rotating push rod can be in splined connection with the threaded rod.

Wherein, the lubricating device comprises a bevel gear meshing cavity which is arranged in the casing and is positioned at the lower side of the jacking cavity, the driving shaft extends into the bevel gear meshing cavity, a first bevel gear is fixedly arranged at the right side of the driving shaft, a line wheel cavity which is positioned at the right side of the bevel gear meshing cavity is arranged in the casing, a line wheel shaft is rotatably connected in the right wall of the line wheel cavity, the line wheel shaft extends into the bevel gear meshing cavity, a second bevel gear is fixedly arranged at the left side of the line wheel shaft, a jacking rod which extends into the bevel gear meshing cavity is fixedly arranged at the lower side of the jacking plate, a third bevel gear which can be connected with the first bevel gear and the second bevel gear in a meshing way is fixedly arranged at the lower side of the jacking rod, line wheels are connected on the line wheel shaft in the line wheel cavity, connecting wires connected with the rotary table are wound, the reel shaft extends into the reel and is provided with a telescopic cavity in an annular distribution manner, a movable plate capable of extending into the jacking cavity is slidably connected into the telescopic cavity, and a clutch jacking spring is connected between the movable plate and the bottom wall of the telescopic cavity.

The invention has the beneficial effects that: compared with the traditional bearing lubrication, the clamping bearing is replaced through the reverse rotation of the motor, the bearing is rotated through the forward rotation of the motor, after the bearing is placed, the motor just starts to rotate forwards, the lubricant can be added to the bearing, and the lubricant in the bearing can be uniformly dispersed by rotating the bearing, so that the lubrication effect is improved.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left side view of the internal structure of the drive shaft of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "A-A" of FIG. 1;

fig. 4 is a left-hand internal mechanism diagram of the reel of fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1 to 4, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a device for bearing lubrication, which is further described below with reference to the accompanying drawings of the invention: the invention relates to a device for lubricating a bearing, which comprises a machine shell 11, wherein a transmission cavity 42 with an upward opening is arranged in the machine shell 11, a rotating disc 28 is rotationally connected in the transmission cavity 42, a threaded rod 27 rotationally connected to the left wall of the rotating disc 28 is rotationally connected in the right wall of the rotating disc 28, symmetrical clamping plates 25 are in threaded connection with the threaded rod 27, a clamping and jacking spring 26 is connected between the adjacent clamping plates 25, a bearing 30 fixed on the clamping plate 25 is arranged on the upper side of the machine shell 11, a belt cavity 37 positioned on the left side of the transmission cavity 42 is arranged in the machine shell 11, a motor 34 is fixedly arranged in the left wall of the belt cavity 37, a driving shaft 48 is fixedly arranged on an output shaft on the right side of the motor 34, a rotating device 101 capable of driving the driving shaft 48 to rotate by the motor 34, a clamping device 102 capable of driving the driving shaft 48 to rotate reversely by the motor 34 to drive the two clamping plates 25 to move inward is arranged in the casing 11, a top pressing cavity 17 with an upward opening is arranged in the casing 11, a top pressing plate 22 is connected in the top pressing cavity 17 in a sliding manner, a top pressing spring 15 is connected between the lower side of the top pressing plate 22 and the bottom wall of the top pressing cavity 17, a fixing frame 59 positioned on the right side of the bearing 30 is arranged on the upper side of the casing 11, a rotating disc 19 is hinged on the fixing frame 59, a mechanical rod 20 is fixedly arranged on the upper side of the rotating disc 19, an oil outlet 21 capable of dripping lubricating oil is fixedly arranged on the left side of the mechanical rod 20, a mechanical rod torsion spring 60 connected in the front and rear walls of the fixing frame 59 is wound on the rotating disc 19, and a mechanical rod 20 capable of rotating around the rotating disc 19 when the bearing 30 rotates, the lubricating oil then drips through the oil outlet 21 to the lubricating device 103 on the bearing 30.

According to the embodiment, the rotating device 101 is described in detail below, the rotating device 101 includes a driving shaft 43 rotatably connected to the left wall of the transmission cavity 42, the driving shaft 43 is annularly provided with an extending cavity 53, the driving shaft 48 is annularly provided with an inner cavity 49, the inner cavity 49 is rotatably connected with a rotating shaft 50, the rotating shaft 50 is fixedly provided with a blade 52 capable of extending into the extending cavity 53, the blade 52 is also capable of extending into the inner cavity 49, the rotating shaft 50 is wound with a clutch torsion spring 51 connected to the driving shaft 48 and the driving shaft 43, the driving shaft 43 is fixedly provided with a driving bevel gear 38, the lower side of the rotating disc 28 is rotatably connected with a driven shaft 41, the lower side of the driven shaft 41 is fixedly provided with a driven bevel gear 40 engaged with the driving bevel gear 38, the lower side of the rotating disc 28 is provided with sliding cavities 55 symmetrically arranged at two sides of the driven shaft 41, a fixed rod 54 fixed on the side of the driven shaft 41 is connected in the sliding cavity 55 in a sliding manner, a reset torsion spring 39 connected between the upper side of the driven bevel gear 40 and the lower side of the fixed rod 54 is wound on the driven shaft 41, a left permanent magnet 24 is fixedly arranged on the right side of the rotating disc 28, a right permanent magnet 23 positioned on the right side of the left permanent magnet 24 is arranged in the casing 11, when the motor 34 is started and drives the driving shaft 48 to rotate forward, the driving shaft 43 is driven to rotate, the driving shaft 43 drives the driven shaft 41 to rotate through the meshing of the driving bevel gear 38 and the driven bevel gear 40, the driven shaft 41 rotates to drive the fixed rod 54 to rotate to a limit position, then, the driven shaft 41 rotates to drive the rotating disc 28 to rotate, so that the bearing 30 is driven to rotate through the clamping plate 25, when the motor 34 is started and drives the driving shaft, therefore, the driving shaft 43 cannot be driven to rotate by the rotation of the driving shaft 48, and at the same time, the rotating disc 28 rotates to the original position under the magnetic force action of the left permanent magnet 24 and the right permanent magnet 23, and the tensioned rotating push rod 29 can assist the returning of the rotating disc 28.

According to the embodiment, the following will describe the clamping device 102 in detail, the clamping device 102 includes a rotating shaft 33 rotatably connected to the right wall of the belt cavity 37, an upper pulley 31 is fixedly arranged on the left side of the rotating shaft 33, a lower pulley 35 is fixedly arranged on the drive bevel gear 38, a belt 36 is connected between the lower pulley 35 and the upper pulley 31, an air cylinder 32 positioned on the upper side of the motor 34 is fixedly arranged in the left wall of the belt cavity 37, a rotating push rod 29 splined to the upper pulley 31 and the rotating shaft 33 is connected to the right side of the air cylinder 32, the rotating push rod 29 can be splined to the threaded rod 27, when the motor 34 is started to drive the drive shaft 48 to rotate reversely, the actuating cylinder 32 drives the rotating push rod 29 to move rightwards so that the rotating push rod 29 is splined to the threaded rod 27, and the drive shaft 48 rotates reversely to drive the lower pulley 35 to rotate, the lower belt wheel 35 rotates to drive the upper belt wheel 31 to rotate through the belt 36, the upper belt wheel 31 rotates to drive the rotating push rod 29 to rotate through the spline connection, the rotating push rod 29 rotates to drive the clamping plate 25 to move towards the middle to the extreme position through the spline connection, the motor 34 is turned off, the clamping plate 25 is not clamped on the bearing 30 any more, the bearing 30 is manually taken out and a new bearing 30 is put in, the starting cylinder 32 drives the rotating push rod 29 to move leftwards, so that the rotating push rod 29 is not splined on the threaded rod 27 any more, and the contracted clamping jacking spring 26 drives the clamping plate 25 to move towards two sides until the clamping is clamped on the new bearing 30.

According to the embodiment, the lubricating device 103 is described in detail below, the lubricating device 103 includes a bevel gear engaging cavity 47 disposed in the casing 11 and located on the lower side of the top pressure cavity 17, the driving shaft 43 extends into the bevel gear engaging cavity 47, a first bevel gear 44 is fixedly disposed on the right side of the driving shaft 43, a line wheel cavity 12 disposed on the right side of the bevel gear engaging cavity 47 is disposed in the casing 11, a line wheel shaft 13 is rotatably connected to the right wall of the line wheel cavity 12, the line wheel shaft 13 extends into the bevel gear engaging cavity 47 and a second bevel gear 46 is fixedly disposed on the left side of the line wheel shaft 13, a top pressure rod 16 extending into the bevel gear engaging cavity 47 is fixedly disposed on the lower side of the top pressure plate 22, a third bevel gear 45 capable of being engaged with the first bevel gear 44 and the second bevel gear 46 is fixedly disposed on the lower side of the top pressure rod 16, a line wheel 14 is connected to the line wheel shaft 13 in the, the pulley 14 is wound with a connecting wire 18 connected to the turntable 19, a jacking cavity 58 is annularly distributed in the pulley 14, the pulley shaft 13 extends into the pulley 14, a telescopic cavity 56 is annularly distributed on the pulley shaft 13, a moving plate 61 capable of extending into the jacking cavity 58 is slidably connected in the telescopic cavity 56, a clutch jacking spring 57 is connected between the moving plate 61 and the bottom wall of the telescopic cavity 56, when the bearing 30 is placed on the upper side of the casing 11, the jacking plate 22 is pressed to move downwards, the jacking plate 22 moves downwards to drive the jacking rod 16 to move downwards so as to enable the third bevel gear 45 to be meshed with the first bevel gear 44 and the second bevel gear 46, then the motor 34 is started to drive the driving shaft 48 to rotate forwards, the driving shaft 48 rotates forwards to drive the driving shaft 43 to rotate, and the driving shaft 43 rotates to drive the pulley shaft 13 to rotate through meshing of the first bevel gear 44, the third bevel gear 45 and the second bevel gear 46, the reel 14 is driven by the rotation of the reel shaft 13, so that the mechanical rod 20 is driven by the connecting line 18 to rotate ninety degrees to one side of the bearing 30 around the turntable 19, namely to rotate to a limit position, then the lubricating oil is dripped into the bearing 30 through the oil outlet 21, the reel shaft 13 continues to rotate, the moving plate 61 is pressed to be away from the jacking and extends into the cavity 58 to move inwards, so that the reel 14 cannot be driven to rotate by the rotation of the reel shaft 13, when the bearing 30 is manually taken away, the jacking spring 15 jacks the jacking plate 22 to move upwards, so that the third bevel gear 45 is not meshed with the first bevel gear 44 and the second bevel gear 46, and the tensioned mechanical rod torsion spring 60 drives the mechanical rod 20 to rotate to a home position.

The following describes in detail the use steps of a device for bearing lubrication according to the present disclosure with reference to fig. 1 to 4: in the initial state, the bearing 30 is not placed on the upper side of the housing 11, and the top pressing plate 22 is at the upper limit position and the clamping plates 25 are at the two side limit positions.

When the bearing 30 is to be put in for lubrication, after the motor 34 is started to drive the driving shaft 48 to rotate reversely, the starting cylinder 32 drives the rotating push rod 29 to move rightwards so as to enable the rotating push rod 29 to be connected with the threaded rod 27 in a spline mode, the driving shaft 48 drives the lower belt wheel 35 to rotate reversely, the lower belt wheel 35 drives the upper belt wheel 31 to rotate through the belt 36, the upper belt wheel 31 rotates to drive the rotating push rod 29 to rotate through the spline connection, the rotating push rod 29 rotates through the spline connection with the movable threaded rod 27 so as to drive the clamping plate 25 to move towards the middle to the extreme position through the threaded connection and then to close the motor 34, the bearing 30 is manually put in, the top pressure plate 22 moves downwards so as to enable the third bevel gear 45 to be meshed with the first bevel gear 44 and the second bevel gear 46, the starting cylinder 32 drives the rotating push rod 29 to move leftwards so as to enable the rotating push rod 29 not, the motor 34 is started and drives the driving shaft 48 to rotate forward, so as to drive the driving shaft 43 to rotate, the driving shaft 43 rotates and drives the driven shaft 41 to rotate through the meshing of the driving bevel gear 38 and the driven bevel gear 40, the driven shaft 41 rotates and drives the fixed rod 54 to rotate to the limit position, then, the driven shaft 41 rotates to drive the rotating disc 28 to rotate, so as to drive the bearing 30 to rotate through the clamping plate 25, the driving shaft 43 rotates to drive the reel shaft 13 to rotate through the meshing of the first bevel gear 44 and the third bevel gear 45 with the second bevel gear 46, the reel shaft 13 rotates to drive the reel 14 to rotate, so as to drive the mechanical rod 20 to rotate ninety degrees to one side of the bearing 30 around the rotating disc 19 through the connecting line 18, namely, the reel 14 rotates to the limit position, then the oil outlet 21 drops lubricating oil into the bearing 30, the reel shaft 13 continues to rotate, and the moving plate 61 is pressed to be away from the top pressure extending cavity 58 and moves inwards, so that the reel shaft 13 cannot be driven to rotate by the rotation of the reel shaft 14.

When a new bearing 30 is replaced for lubrication after the bearing 30 is lubricated, the motor 34 is started to drive the driving shaft 48 to rotate reversely, the driving shaft 48 rotates to drive the blade 52 to rotate, the blade 52 leaves the extending cavity 53 under the extrusion action, so that the driving shaft 48 cannot drive the driving shaft 43 to rotate, meanwhile, the rotating disc 28 rotates to the original position under the magnetic force action of the left permanent magnet 24 and the right permanent magnet 23, the tensioned rotating push rod 29 can assist the rotating disc 28 to return to the original position, the starting cylinder 32 drives the rotating push rod 29 to move rightwards so as to enable the rotating push rod 29 to be connected with the threaded rod 27 in a spline manner, the driving shaft 48 rotates to drive the lower belt wheel 35 to rotate, the lower belt wheel 35 drives the upper belt wheel 31 to rotate through the belt 36, the upper belt wheel 31 rotates to drive the rotating push rod 29 to rotate through the spline, the rotating push rod 29 rotates to drive the clamping plate 25 to move towards the middle through the, when the clamping plate 25 is not clamped on the bearing 30, the bearing 30 is manually taken out, the jacking spring 15 jacks and drives the jacking plate 22 to move upwards, so that the third bevel gear 45 is not meshed with and connected with the first bevel gear 44 and the second bevel gear 46, the tensioned mechanical rod torsion spring 60 drives the mechanical rod 20 to rotate to the original position, after a new bearing 30 is put in, the air cylinder 32 is started to drive the rotating push rod 29 to move leftwards, so that the rotating push rod 29 is not splined with the threaded rod 27, and the contracted clamping jacking spring 26 drives the clamping plate 25 to move towards two sides until the clamping plate 25 is clamped on the new bearing 30.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. An apparatus for bearing lubrication comprising a housing, characterized in that: a transmission cavity with an upward opening is arranged in the shell, a rotating disc is rotatably connected in the transmission cavity, a threaded rod which is rotatably connected to the left wall of the rotating disc is rotatably connected in the right wall of the rotating disc, symmetrical clamping plates are connected to the threaded rod in a threaded manner, clamping and jacking springs are connected between the adjacent clamping plates, a bearing which is fixed on the clamping plates is arranged at the upper side of the shell, a belt cavity which is positioned at the left side of the transmission cavity is arranged in the shell, a motor is fixedly arranged in the left wall of the belt cavity, a driving shaft is fixedly arranged on an output shaft at the right side of the motor, a rotating device which can drive the bearing to rotate by driving the driving shaft to rotate forward through the motor is arranged in the shell, a clamping device which can drive the two clamping plates to move inward through driving of the motor to rotate backward is arranged in the shell, the utility model discloses a lubricating device for lubricating oil, including bearing, roof pressure intracavity sliding connection has the roof pressure board, roof pressure board downside with be connected with the roof pressure spring between the roof pressure chamber diapire, just the casing upside is equipped with and is located the mount on bearing right side, it has the carousel to articulate on the mount, the carousel upside has set firmly mechanical pole, the oil-out that can be used for the drippage lubricating oil has set firmly in mechanical pole left side, it has the mechanical pole torsional spring of connecting in the mount front and back wall to have gone up to roughed on the carousel, be equipped with in the casing and pass through the roof pressure board descends to make mechanical pole rotate round the carousel when the bearing rotates, then through the lubricating arrangement.

2. An apparatus for bearing lubrication according to claim 1 wherein: the rotating device comprises a driving shaft which is rotatably connected in the left wall of the transmission cavity, the driving shaft is internally provided with an extending cavity in an annular distribution manner, the driving shaft is internally provided with an inner cavity in an annular distribution manner, a rotating shaft is rotatably connected in the inner cavity, blades which can extend into the extending cavity are fixedly arranged on the rotating shaft and can also extend into the inner cavity, clutch torsion springs connected with the driving shaft and the driving shaft are wound on the rotating shaft, a driving bevel gear is fixedly arranged on the driving shaft, a driven shaft is rotatably connected on the lower side of the rotating disc, driven bevel gears which are meshed with the driving bevel gears are fixedly arranged on the lower side of the driven shaft, sliding cavities symmetrically arranged on two sides of the driven shaft are arranged on the lower side of the rotating disc, fixed rods fixed on the side edges of the driven shaft are slidably connected in the sliding cavities, and reset torsion springs connected on the upper sides of the, the right side of the rotating disc is fixedly provided with a left permanent magnet, and a right permanent magnet positioned on the right side of the left permanent magnet is arranged in the machine shell.

3. An apparatus for bearing lubrication according to claim 1 wherein: the clamping device comprises a rotating shaft which is rotatably connected into the right wall of the belt cavity, an upper belt wheel is fixedly arranged on the left side of the rotating shaft, a lower belt wheel is fixedly arranged on the drive bevel gear, a belt is connected between the lower belt wheel and the upper belt wheel, an air cylinder positioned on the upper side of the motor is fixedly arranged in the left wall of the belt cavity, the right side of the air cylinder is connected with a rotating push rod which is in splined connection with the upper belt wheel and the rotating shaft, and the rotating push rod can be in splined connection with the threaded rod.

4. An apparatus for bearing lubrication according to claim 1 wherein: the lubricating device comprises a bevel gear meshing cavity which is arranged in the casing and is positioned on the lower side of the jacking cavity, the driving shaft extends into the bevel gear meshing cavity, a first bevel gear is fixedly arranged on the right side of the driving shaft, a line wheel cavity which is positioned on the right side of the bevel gear meshing cavity is arranged in the casing, a line wheel shaft is rotatably connected in the right wall of the line wheel cavity, the line wheel shaft extends into the bevel gear meshing cavity, a second bevel gear is fixedly arranged on the left side of the line wheel shaft, a jacking rod which extends into the bevel gear meshing cavity is fixedly arranged on the lower side of the jacking plate, a third bevel gear which can be connected with the first bevel gear and the second bevel gear in a meshing way is fixedly arranged on the lower side of the jacking rod, line wheels are connected on the line wheel shaft in the line wheel cavity, connecting wires connected with the rotary table are wound, the reel shaft extends into the reel and is provided with a telescopic cavity in an annular distribution manner, a movable plate capable of extending into the jacking cavity is slidably connected into the telescopic cavity, and a clutch jacking spring is connected between the movable plate and the bottom wall of the telescopic cavity.