Automatic oil filling device

Abstract

The application relates to an automatic oil filling device, which comprises a base, a controller, a driving element, an oil filling pipe and an oil storage tank arranged on the base, an oil storage cavity is arranged in the oil storage tank, a piston is slidably connected in the oil storage cavity along the length direction of the oil storage cavity, the piston divides the oil storage tank into cavities and oil cavities which are not communicated with each other, the oil is arranged in the oil cavities, the driving element drives the piston to slide from the cavity to one side of the oil cavity, the controller controls the driving element to work in a timing mode, one end of the oil filling pipe is communicated with the oil cavity far away from the cavity, and the other end of the oil filling pipe is used for being close to the bearing and filling oil to the bearing. The controller starts the driving element to work in a timing mode, the driving element drives the piston to slide from the cavity to one side of the oil cavity, so that the oil in the oil cavity is squeezed out from the oil filling pipe, then the oil is added to the bearing every certain period of time, and the oil is mainly used for lubricating the bearing, thereby continuously prolonging the service life of the bearing.

Description

TECHNICAL FIELD

[0001] The application relates to the field of oil filling devices, in particular to an oil automatic filling device. BACKGROUND

[0002] A motor refers to an electromagnetic device for realizing electric energy conversion or transmission according to electromagnetic induction law. There are many types of motors, and in terms of basic structures, the motor mainly comprises a stator and a rotor. The stator is stationary in space, and the rotor can rotate around the shaft and is supported by the bearing.

[0003] After the motor is used for a long time, the bearing on the motor not only bears the rotating shaft and the stator, but also wears with the rotating shaft, which shortens the service life of the bearing and causes the bearing to be prone to damage. SUMMARY

[0004] In order to prolong the service life of the bearing in the motor, the application provides an oil automatic filling device.

[0005] The oil automatic filling device provided by the application adopts the following technical scheme:

[0006] An oil automatic filling device comprises a base, a controller, a driving member, an oil injection pipe and an oil storage tank arranged on the base, the oil storage tank is provided with an oil storage cavity, a piston is slidably connected in the oil storage cavity along the length direction of the oil storage cavity, the piston divides the oil storage tank into cavities and an oil cavity which are not communicated with each other, the oil is located in the oil cavity, the driving member drives the piston to slide from one side of the cavity to the oil cavity, the controller controls the driving member to work at regular time intervals, one end of the oil injection pipe is communicated with the oil cavity far away from the cavity, and the other end of the oil injection pipe is used for being close to the bearing and injecting oil into the bearing.

[0007] By adopting the above technical scheme, the controller starts the driving member to work at regular time intervals, the driving member drives the piston to slide from one side of the cavity to the oil cavity, so as to squeeze the oil in the oil cavity out of the oil injection pipe, and then the oil is added to the bearing every interval, the oil is mainly used for lubricating the bearing, so as to prolong the service life of the bearing.

[0008] Preferably, the driving member is a gas pump, the gas pump is provided with an air outlet and an air inlet, the air outlet is communicated with a connecting pipe, and one end of the connecting pipe far away from the air outlet is communicated with the cavity.

[0009] By adopting the above technical scheme, the gas pump pressurizes air into the cavity, so as to realize the movement of the piston rod from one side of the cavity to the oil cavity.

[0010] Preferably, the detection device comprises a displacement sensor, a dosing rod and a one-way rotating internal ratchet gear, one end of the dosing rod is fixed on the piston, the other end of the dosing rod extends out of the oil tank through the cavity, the dosing rod is slidingly connected to the oil tank in parallel to the sliding direction of the piston, the internal ratchet gear rotates on the oil tank, a first rack is fixed on the dosing rod along the length direction of the dosing rod, the first rack is meshingly connected to the internal ratchet gear, the internal ratchet gear limits the movement of the dosing rod away from the oil cavity, the displacement sensor is arranged on the oil tank and is used to detect the movement distance of the dosing rod, when the controller controls the air pump to operate, the controller is also used to receive the detection value of the displacement sensor, when the detection value reaches the required oil injection amount of the bearing, the controller controls the air pump to stop working.

[0011] By adopting the above technical scheme, since the volume of air is easy to be compressed, the movement distance of the piston after the air pump works for the same time each time is not necessarily the same, thereby causing the oil injection amount each time to be different, the detection device can control the oil injection amount by controlling the movement distance of the dosing rod, thereby more accurately injecting oil to the bearing.

[0012] Preferably, the oil injection pipe is slidingly connected with an oil injection head at an end away from the oil tank along the axis direction parallel to the motor rotating shaft, a soft cover is fixedly connected to the end of the oil injection head facing the bearing, the piston drives the oil injection head to slidingly connect to the oil injection pipe through the linkage, the oil injection head slides back and forth once for each time of oil injection of the bearing, the two ends of the oil injection head sliding back and forth are called two limit positions of the oil injection head, when the oil injection head slides to one of the limit positions towards the bearing, the soft cover covers the rolling balls on the bearing, when the oil injection head slides to the other limit position away from the bearing, the soft cover is arranged away from the bearing.

[0013] By adopting the above technical scheme, the movement of the plug head drives the oil injection head to slidingly connect to the oil injection pipe through the linkage, in the process of oil injection, the oil injection head can extend to the bearing and make the soft cover cover the rolling balls on the bearing, thereby enabling the rolling balls to be wrapped by the oil in a large range, especially when the bearing rotates, the rolling balls rotate to drive the oil to be more evenly distributed on the bearing, thereby improving the lubricating effect.

[0014] Preferably, the linkage comprises a limiting block, a second rack, a linkage gear, a rotating rod, a first bevel gear, a second bevel gear, a reciprocating screw rod and a linkage rod, the second rack is slidingly connected to the base along the length direction parallel to the first rack, the second rack is located on the side of the internal ratchet gear away from the first rack and is meshingly connected with the internal ratchet gear, the linkage gear, the rotating rod, the first bevel gear and the second bevel gear are all rotationally connected to the base, the two ends of the rotating rod are coaxially fixedly connected with the linkage gear and the first bevel gear respectively, the linkage gear is meshingly connected to the second rack;

[0015] The limiting block is fixed to the base, a limiting groove is formed in the limiting block, the two ends of the reciprocating screw rod are rotationally connected to the limiting groove respectively, the axis direction of the reciprocating screw rod is parallel to the axis direction of the rotating shaft of the motor, one end of the reciprocating screw rod extends out of the limiting block and is coaxially fixedly connected with the second bevel gear, the first bevel gear is meshingly connected to the second bevel gear, one end of the linkage rod is detachably connected to the oil injection head, the other end of the linkage rod is threadedly connected to the reciprocating screw rod and slidingly connected to the limiting groove along the length direction parallel to the reciprocating screw rod.

[0016] By adopting the above technical scheme, the plug head slides to drive the first rack to slide, the first rack drives the second rack to slide through the internal ratchet gear, the second rack drives the linkage gear to rotate, the reciprocating screw rod is driven to rotate through the rotating rod and the cooperation of the first bevel gear and the second bevel gear, the reciprocating screw rod rotates to drive the linkage rod threadedly connected to the reciprocating screw rod to slide back and forth in the limiting groove, and finally the reciprocating of the oil injection head is realized.

[0017] Preferably, the end of the oil injection pipe away from the oil storage tank is fixedly connected with a fixed pipe, a sliding groove for the oil injection head to slide is formed in the inner wall of the fixed pipe, the oil injection head is slidingly connected in the sliding groove, a linkage groove for the linkage rod to slide is formed in the inner wall of the sliding groove, when the soft cover part moves into the fixed pipe, the soft cover is tightened, and the grease is difficult to flow out of the soft cover.

[0018] By adopting the above technical scheme, the soft cover can be opened and tightened, when the oil is injected, the soft cover starts to open, which facilitates the grease to be squeezed out of the oil injection head, and at the same time, the soft cover can cover the roller, when the oil injection is almost completed, the soft cover is tightened, at this time, the soft cover is blocked in the fixed pipe, thereby pressing part of the grease in the fixed pipe to the bearing, and when the grease is not needed, the situation that the grease automatically leaks out of the fixed pipe can be reduced.

[0019] Preferably, a soft abutting ring is fixed to the circumferential outer wall of the soft cover, when the oil injection head slides to the side away from the bearing to the soft cover and is tightened, the soft abutting ring abuts against the end of the fixed pipe.

[0020] By adopting the technical scheme, the soft abutting ring can limit the movement of the soft cover body, and can reduce the situation that the soft cover body is difficult to be stretched out of the fixed pipe again due to too much part of the soft cover body being tightened into the fixed pipe.

[0021] Preferably, the linkage rod is fixed with a mounting block at the end close to the oil injection head, the mounting block is slidingly connected in the linkage groove, and a first screw is threaded through the mounting block and connected to the oil injection head.

[0022] By adopting the technical scheme, the linkage rod is detachably connected to the oil injection head by the screw, so that the oil injection head can be conveniently detached from the fixed pipe and cleaned or replaced.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] By setting the soft abutting ring, the soft abutting ring can limit the movement of the soft cover body, and can reduce the situation that the soft cover body is difficult to be stretched out of the fixed pipe again due to too much part of the soft cover body being tightened into the fixed pipe;

[0025] By setting the linkage rod detachably connected to the oil injection head, the oil injection head can be conveniently detached from the fixed pipe and cleaned or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0027] Figure 2 is a schematic diagram of the cooperation of the oil injection head and the bearing of the embodiment of the present application.

[0028] Figure 3 is Figure 2 is an enlarged view of B in FIG.

[0029] Figure 4 is a sectional view along Figure 1 is an enlarged view of C in FIG.

[0030] Figure 5 is Figure 4 is an enlarged view of D in FIG.

[0031] Figure 6 is Figure 2 is an enlarged view of D in FIG.

[0032] Explanation of reference signs: 1, motor; 11, shell; 12, end cover; 121, second bolt; 13, rotating shaft; 14, bearing; 141, outer ring; 142, ball; 143, inner ring; 2, base; 21, driving piece; 211, air pump; 212, connecting pipe; 22, oil storage tank; 221, vertical rod; 222, air-tight valve; 223, grease one-way valve; 224, cavity; 225, oil cavity; 226, oil injection pipe; 227, piston; 23, inner ratchet gear; 231, rotating gear; 232, containing groove; 233, first ratchet; 234, first shaft; 235, pawl; 236, spring; 237, poking rod; 24, linkage; 241, second rack; 242, linkage gear; 243, rotating lever; 244, first bevel gear; 245, second bevel gear; 246, reciprocating lead screw; 247, linkage lever; 2471, mounting block; 2471, first bolt; 25, fixed pipe; 251, support block; 252, sliding groove; 253, linkage groove; 254, support table; 26, oil injection head; 261, soft cover; 262, soft abutment ring; 27, limiting block; 271, limiting groove; 28, quantitative rod; 281, first rack; 282, jacking rod; 283, displacement sensor. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0034] The present application discloses an automatic grease filling device.

[0035] Reference will be made to Figure 1 , Figure 2This embodiment of an automatic grease dispensing device includes a detection device, a controller, a drive unit 21, and a base 2. The base 2 is used to fix it on the ground or to a motor 1. A vertically arranged vertical rod 221 is fixedly connected to the top surface of the base 2, located on one side of the motor 1. An oil storage tank 22 is fixedly connected to the side of the vertical rod 221 facing the motor 1. An oil storage chamber 225 is opened inside the oil storage chamber 225. A piston 227 is slidably connected in the vertical direction inside the oil storage chamber 225. The piston 227 divides the oil storage tank 22 into two non-communicating cavities 224 and oil chamber 225. The drive unit 21 drives the piston 227 to slide in the vertical direction inside the oil chamber 225. An airtight valve 222 is provided at the top of the oil storage tank 22. When the airtight valve 222 is opened, the cavity 224 is connected to the outside. A grease check valve 223 is embedded in the bottom side wall of the oil reservoir 22. Grease is filled into the oil chamber 225 through the grease check valve 223. To facilitate the operator's observation of the remaining grease in the oil chamber 225, the oil reservoir 22 is made transparent. An oil injection pipe 226 is fixedly connected to the bottom of the oil reservoir 22. One end of the oil injection pipe 226 extends into the bottom of the oil chamber 225, and the other end of the oil injection pipe 226 is close to the bearing 14 and used to lubricate the bearing 14 on the motor 1. The controller is used to control the drive component 21 to work at regular intervals, thereby realizing the timed lubrication of the bearing 14, which can extend the service life of the bearing 14 in the motor 1.

[0036] Reference Figure 1 , Figure 2 The motor 1 includes a housing 11, an end cover 12, a stator, a rotor, bearings 14, and a shaft 13. The stator is fixedly installed inside the housing 11. The rotor is mounted and fixed to the frame via bearings 14. Bearings 14 are coaxially sleeved and fixedly installed on the shaft 13. The end cover 12 is detachably connected to the end of the housing 11 near the bearings 14 by multiple second bolts 121. One end of the shaft 13 extends out of the end cover 12. The bearings 14 include multiple balls 142 and coaxially arranged inner ring 143 and outer ring 141. The multiple balls 142 are rolled between the inner ring 143 and the outer ring 141 and are evenly distributed along the circumferential direction of the inner ring 143 and the outer ring 141.

[0037] Reference Figure 1 , Figure 2 The driving component 21 is an air pump 211, which is fixed on the base 2. The air pump 211 is located on the side of the vertical rod 221 away from the motor 1. The air pump 211 has an air outlet and an air inlet. A connecting pipe 212 is connected to the air outlet. The end of the connecting pipe 212 away from the air outlet is fixed to the oil storage tank 22 and connected to the top of the cavity 224.

[0038] Reference Figure 2 , Figure 3The detection device comprises a displacement sensor 283, a quantitative rod 28 and a one-way rotating internal ratchet gear 23. The quantitative rod 28 is arranged in an L shape, the bottom end of the quantitative rod 28 is fixed on the top surface of the piston 227 in the vertical direction, the top end of the quantitative rod 28 extends out of the oil storage tank 22 and is located above the oil storage tank 22, and the quantitative rod 28 is slidingly connected to the oil storage tank 22 in the vertical direction. The top end of the quantitative rod 28 is fixed with a first rack 281 in the vertical direction, the top end of the oil storage tank 22 is fixedly connected with two support frames arranged opposite to each other, the internal ratchet gear 23 is rotatably connected to the two support frames, the internal ratchet gear 23 is meshingly connected to the first rack 281, and the internal ratchet gear 23 limits the movement of the quantitative rod 28 towards the side away from the oil cavity 225, that is, the quantitative rod 28 cannot move upwards. The displacement sensor 283 is fixedly connected to the two support frames and arranged opposite to the bent top end of the quantitative rod 28, and the displacement sensor 283 is used to detect the distance between the bottom end of the quantitative rod 28 and the displacement sensor 283, and calculate the movement distance of the quantitative rod 28. Since the oil injection amount needs to be appropriate to achieve the best lubrication effect, the operator calculates the distance that the piston 227 needs to move each time according to the quantitative oil and inputs the standard value into the controller, and the controller is also used to receive the detection value of the displacement sensor 283, and when the detection value reaches the standard value, the controller controls the air pump 211 to stop working.

[0039] With reference to Figure 2 , Figure 3 The internal ratchet gear 23 comprises a rotating gear 231, a first ratchet 233, a pawl 235, a spring 236, a poking rod 237 and a first shaft 234. The two ends of the first shaft 234 are rotatably connected to the two support frames, the axis direction of the first shaft 234 is horizontally arranged and perpendicular to the movement direction of the first rack 281, the rotating gear 231 is coaxially fixedly connected to the first shaft 234, a containing groove 232 is formed in one side surface of the rotating gear 231, the first ratchet 233 is coaxially fixed to the first shaft 234 and located in the containing groove 232, the pawl 235 is rotatably connected to the inner wall of the containing groove 232 in the axis direction parallel to the first shaft 234, the spring 236 is fixed to the pawl 235 and the inner wall of the containing groove 232, the spring 236 is used to drive the pawl 235 to be always meshingly connected to the first ratchet 233, and the poking rod 237 is fixed to the pawl 235. The operator can drive the pawl 235 to move towards the side of the spring 236 by poking the poking rod 237, so that the pawl 235 no longer limits the rotation of the first ratchet 233.

[0040] With reference to Figure 4 , Figure 5The fixed tube 25 is fixed on the top end of the support block 251 and supported on the base 2 by the support block 251, and the length direction of the fixed tube 25 is parallel to the axis direction of the output shaft of the motor 1. A sliding groove 252 is formed on the circumferential inner wall of the fixed tube 25, and the length direction of the sliding groove 252 is parallel to the length direction of the fixed tube 25. An oil injection head 26 is slidably connected in the length direction of the sliding groove 252, and the circumferential outer wall of the oil injection head 26 is tightly fitted with the circumferential inner wall of the sliding groove 252. One end of the oil injection head 26 extends out of the fixed tube 25 and is fixedly connected with a soft cover body 261. The opening of the soft cover body 261 gradually expands towards the side away from the oil injection head 26. After the grease comes out of the oil storage tank 22, it passes through the oil injection tube 226, the fixed tube 25 and the oil injection head 26 and finally accumulates on the soft cover body 261.

[0041] With reference to Figure 4 , Figure 5 A linkage 24 is arranged on the oil injection head 26. The piston 227 drives the oil injection head 26 to slide back and forth on the oil injection tube 226 through the linkage 24. The oil injection head 26 slides back and forth once for each oil injection of the pair of bearings 14. The two end positions of the oil injection head 26 sliding back and forth are called the two limit positions of the oil injection head 26. When the oil injection head 26 slides to one of the limit positions towards the side of the bearing 14, the soft cover body 261 abuts against the inner ring 143 and the outer ring 141 of the bearing 14, and the soft cover body 261 covers the balls 142 on the bearing 14. When the oil injection head 26 slides to the other limit position away from the side of the bearing 14, the soft cover body 261 is arranged away from the bearing 14. When the soft cover body 261 moves partially into the fixed tube 25, the soft cover body 261 tightens, and it is difficult for the grease to flow out of the soft cover body 261.

[0042] With reference to Figure 2 , Figure 5 In order to improve the problem that the soft cover body 261 is difficult to move out of the fixed tube 25, a soft abutting ring 262 is fixed on the circumferential outer wall of the end of the soft cover body 261 away from the oil injection head 26. When the oil injection head 26 slides to the side away from the bearing 14 and the soft cover body 261 tightens, the soft abutting ring 262 abuts against the end of the fixed tube 25. In this way, a part of the soft cover body 261 is always located outside the fixed tube 25, and the soft cover body 261 can be more easily moved out of the fixed tube 25.

[0043] With reference to Figure 2 , Figure 6The linkage 24 comprises a limiting block 27, a second rack 241, a linkage gear 242, a rotating rod 243, a first bevel gear 244, a second bevel gear 245, a reciprocating lead screw 246 and a linkage rod 247. The base 2 is fixedly connected with a fixed rod in the vertical direction. The second rack 241 is slidingly connected to the top rod 282 in the vertical direction. The first rack 281 and the second rack 241 are respectively located on the two sides of the inner ratchet gear 23. The base 2 is fixedly connected with a support table 254. The rotating rod 243 is horizontally arranged and rotationally connected to the support table 254 in the direction perpendicular to the axis of the rotating shaft 13 of the motor 1. The two ends of the rotating rod 243 respectively extend out of the support table 254 and are coaxially fixedly connected with the linkage gear 242 and the first bevel gear 244. The linkage gear 242 is meshingly connected to the second rack 241.

[0044] With reference to Figure 2 , Figure 6 The limiting block 27 is fixedly connected to the top surface of the base 2. The limiting block 27 is located on the side of the support table 254 away from the oil storage tank 22. A limiting groove 271 is formed in the top surface of the limiting block 27. The two ends of the reciprocating lead screw 246 are rotationally connected to the limiting groove 271. The axis of the reciprocating lead screw 246 is parallel to the axis of the rotating shaft 13 of the motor 1. One end of the reciprocating lead screw 246 extends out of the limiting block 27 and is coaxially fixedly connected with the second bevel gear 245. The first bevel gear 244 is meshingly connected to the second bevel gear 245. One end of the linkage rod 247 is detachably connected to the oil injection head 26. The other end of the linkage rod 247 is threadedly connected to the reciprocating lead screw 246 and slidingly connected to the limiting groove 271 in the direction parallel to the length direction of the reciprocating lead screw 246. When the oil injection head 26 moves to the two limit positions, the linkage rod 247 respectively slides to abut against the two end surfaces of the limiting groove 271.

[0045] With reference to Figure 4 , Figure 5 One end of the linkage rod 247 close to the oil injection head 26 is fixedly connected with a mounting block 2471. A linkage groove 253 is formed in the inner wall of the sliding groove 252 and communicates with the outside. The length direction of the linkage groove 253 is parallel to the length direction of the sliding groove 252. The mounting block 2471 and the end portion of the linkage rod 247 are slidingly connected to the linkage groove 253 in the length direction of the linkage groove 253. The mounting block 2471 is provided with a first bolt 2471. One end of the first bolt 2471 penetrates through the mounting block 2471 and is threadedly connected to the oil injection head 26.

[0046] With reference to Figure 1 The end cover 12 of the motor 1 is a customized end cover 12. The end cover 12 is provided with a movable groove for movably accommodating the fixed pipe 25 and the soft cover 261.

[0047] The implementation principle of the embodiment of the oil automatic filling device is as follows: the controller controls the air pump 211 to work every certain period of time, the air pump 211 works to drive the piston 227 to move and add oil on the bearing 14 of the motor 1, and in the process of adding oil, the linkage 24 drives the oil filling head 26 to slide, so that the soft cover body 261 is close to the bearing 14 to add oil on the bearing 14.

[0048] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic grease dispensing device, characterized in that: The utility model relates to a bearing oiling device, including base (2), controller, drive (21), oil injection pipe (226) and set up on base (2) oil storage tank (22), the oil storage tank (22) is set up with oil storage cavity (225) in, the oil storage cavity (225) is slidably connected with piston (227) along the length direction of oil storage cavity (225) in, the piston (227) divides the oil storage tank (22) into the cavity (224) and oil storage cavity (225) that do not communicate with each other, the grease is located in oil storage cavity (225), drive (21) drive piston (227) from the cavity (224) to the one side of oil storage cavity (225) sliding, the controller controls drive (21) and works in time, one end of oil injection pipe (226) is communicated with the end of oil storage cavity (225) far from the cavity (224), the other end of oil injection pipe (226) is used for being close to bearing (14) and carrying out oiling to bearing (14);Drive (21) is air pump (211), the air pump (211) is set up with air outlet and air inlet, the air outlet is connected with connecting pipe (212) with communication, the end of connecting pipe (212) far from the air outlet is communicated with the cavity (224);Still include detection device, the detection device includes displacement sensor (283), ration rod (28) and one way rotation's inner ratchet gear (23), one end of ration rod (28) is fixed on piston (227), the other end of ration rod (28) passes through the cavity (224) and extends the oil storage tank (22), ration rod (28) is slidably connected on the oil storage tank (22) along the sliding direction parallel to piston (227), the inner ratchet gear (23) rotates on the oil storage tank (22), the ration rod (28) is fixed with first rack (281) along the length direction of ration rod (28), first rack (281) is engaged on the inner ratchet gear (23), the inner ratchet gear (23) limits ration rod (28) and moves towards the side far from oil storage cavity (225), displacement sensor (283) sets up on the oil storage tank (22) and is used to detect the moving distance of ration rod (28), when controller controls air pump (211) and runs, the controller is also used to receive the detection value of displacement sensor (283), when the detection value reaches the required oiling amount of bearing (14), the controller controls air pump (211) and stops working.Also include linkage (24), the oil injection pipe (226) far away from the oil tank (22) one end along the direction of axis parallel to the motor (1) shaft (13) sliding connection with oil injection head (26), the oil injection head (26) towards the end of the bearing (14) fixed communication with soft cover (261), the piston (227) through linkage (24) drive oil injection head (26) back and forth sliding connection in oil injection pipe (226), each pair of bearings (14) complete oil injection, the oil injection head (26) back and forth sliding once, the oil injection head (26) back and forth sliding two end position is called the two limit position of oil injection head (26), when the oil injection head (26) towards the bearing (14) side to one of the limit position sliding, the soft cover (261) cover the bearing (14) on the ball (142), when the oil injection head (26) away from the bearing (14) side to the other limit position sliding, the soft cover (261) away from the bearing (14) setting; The linkage (24) includes limit block (27), second rack (241), linkage gear (242), rotating rod (243), first bevel gear (244), second bevel gear (245), reciprocating screw (246) and linkage rod (247), the second rack (241) is slidingly connected to the base (2) along the length direction parallel to the first rack (281), the second rack (241) is located on the side away from the first rack (281) of the inner ratchet gear (23) and is in meshing connection with the inner ratchet gear (23), the linkage gear (242), the rotating rod (243), the first bevel gear (244) and the second bevel gear (245) are all rotationally connected to the base (2), both ends of the rotating rod (243) are coaxially fixedly connected with the linkage gear (242) and the first bevel gear (244), and the linkage gear (242) is in meshing connection with the second rack (241). The limiting block (27) is fixed on the base (2). A limiting groove (271) is provided on the limiting block (27). The two ends of the reciprocating screw (246) are respectively rotatably connected to the limiting groove (271). The axis of the reciprocating screw (246) is parallel to the axis of the motor (1) shaft (13). One end of the reciprocating screw (246) extends out of the limiting block (27) and is coaxially fixedly connected to the second bevel gear (245). The first bevel gear (244) meshes with the second bevel gear (245). One end of the linkage rod (247) is detachably connected to the oil filling head (26), and the other end of the linkage rod (247) is threaded to the reciprocating screw (246) and slidably connected to the limiting groove (271) along the length direction parallel to the reciprocating screw (246); the top of the oil reservoir (22) is fixedly connected to two support frames arranged opposite each other; the inner ratchet gear (23) includes a rotating gear (231), a first ratchet (233), a pawl (235), a spring (236), a lever (237), and a first shaft (271). 34), the two ends of the first shaft (234) are rotatably connected to two support frames respectively. The axis of the first shaft (234) is horizontally set and perpendicular to the moving direction of the first rack (281). The rotating gear (231) is coaxially fixedly connected to the first shaft (234). A receiving groove (232) is opened on one side of the rotating gear (231). The first ratchet (233) is coaxially fixed on the first shaft (234) and located in the receiving groove (232). The inner wall of the receiving groove (232) is parallel to the direction of movement of the first rack (281). A pawl (235) is rotatably connected to the first shaft (234) along its axial direction. A spring (236) is fixed to the pawl (235) and the inner wall of the receiving groove (232). The spring (236) is used to drive the pawl (235) to always be engaged with the first ratchet (233). A lever (237) is fixed to the pawl (235). Moving the lever (237) can drive the pawl (235) to move toward the spring (236), so that the pawl (235) no longer restricts the rotation of the first ratchet (233).

2. The automatic grease dispensing device according to claim 1, characterized in that: The end of the oil injection pipe (226) away from the oil storage tank (22) is fixedly connected to a fixed pipe (25). The inner wall of the fixed pipe (25) is provided with a sliding groove (252) for the oil injection head (26) to slide. The oil injection head (26) is slidably connected in the sliding groove (252). The inner wall of the sliding groove (252) is provided with a linkage groove (253) for the linkage rod (247) to slide. When the soft cover (261) moves into the fixed pipe (25), the soft cover (261) tightens, and the grease is difficult to flow out from the soft cover (261).

3. The automatic grease dispensing device according to claim 2, characterized in that: A soft abutment ring (262) is fixed on the outer circumferential wall of the soft cover (261). When the oil injection head (26) slides away from the bearing (14) until the soft cover (261) tightens, the soft abutment ring (262) abuts against the end of the fixed tube (25).

4. The automatic grease dispensing device according to claim 2, characterized in that: It also includes a first bolt (2471), and an installation block is fixed to the end of the linkage rod (247) near the oil filling head (26). The installation block slides in the linkage groove (253) along with the linkage rod (247). The first bolt (2471) passes through the installation block and is threaded onto the oil filling head (26).

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