Lubricating device of gearbox

Abstract

The utility model discloses a lubricating device of a gearbox. The lubricating device comprises an oil filling tank arranged on the gearbox. A lubricating oil tank is arranged at the top of the refueling tank; the lubricating oil tank, the oiling tank and the gearbox are sequentially communicated, and the oiling tank and the lubricating oil tank jointly form a lubricating device. The refueling tank comprises a refueling tank outer cylinder and a refueling tank inner cylinder, and the refueling tank inner cylinder is connected with the motor and can rotate; a plurality of flow guide plates and magnetic suction plates are arranged in the lubricating oil tank and are distributed in a staggered manner; a threaded rod is installed in the lubricating oil tank and connected with the magnetic suction plate through a connecting strip, a baffle is further installed on the threaded rod, and a handle is fixed to the baffle. Compared with a traditional lubricating device, the lubricating device has the advantages that metal particles in oil are adsorbed, so that abrasion of the particles to the interior of the gearbox is avoided, and the service life of the gearbox is prolonged; the metal particles can be more effectively captured and adsorbed by adjusting the angle of the magnetic plate, and the adsorption efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile transmission system relates to gearbox, concretely relates to a kind of lubricating device of gearbox. BACKGROUND

[0002] Gearbox, as important component in automobile transmission system, is widely used in various cars, tractors, ships, machine tools and various machines, and its main function is to change speed ratio and movement direction to meet the torque, speed and movement direction demand under different working conditions.

[0003] The existing lubricating device of gearbox still has drawbacks in actual use: at present, first, the common practice is to rely on staff manually or with the help of simple tool to pour lubricating oil into gearbox interior, this way is not only inefficient, but also highly dependent on the experience and skill level of operator, and a little carelessness can lead to inaccurate control of lubricating oil amount, and some areas can accumulate due to excessive lubricating oil, which not only increases the resistance of oil mixing, causes energy loss, but also can cause oil temperature to rise too fast, accelerate the aging and deterioration of oil; When the friction surface of key parts can not be fully lubricated due to insufficient lubricating oil, direct contact and wear between parts are directly intensified. Second, since metal particle impurities cannot be avoided in the production process of lubricating oil, direct use will cause metal particles to rub with the parts inside gearbox, thereby intensifying the wear degree of each part of gearbox, which will affect the service life of gearbox. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a lubricating device of gearbox, to solve the technical problems that uneven distribution of lubricating oil in the prior art leads to poor lubrication protection effect on gearbox, and metal particles in lubricating oil are easy to cause wear of each part of gearbox, thereby adversely affecting the service life of gearbox.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve:

[0006] A lubricating device of gearbox, comprising an oil tank arranged on the gearbox;The top of the oil tank is provided with a lubricating oil tank on one side.

[0007] The lubricating oil tank comprises a lubricating oil tank body, and the cavity surrounded by the lubricating oil tank body is a lubricating oil cavity;The center of the top end of the lubricating oil tank body is fixedly provided with a lubricating oil tank filling pipe, and the center of the bottom end of the lubricating oil tank body is fixedly provided with a lubricating oil tank outlet pipe.

[0008] The plurality of flow guide plates are distributed equidistantly along the axial direction of the lubricating oil tank body, one end of the flow guide plate is a suspended end and has a gap with the lubricating oil tank body, the other end of the flow guide plate is a fixed end and is fixedly arranged on the inner wall of the lubricating oil tank body, and the flow guide plate is arranged obliquely with the fixed end being higher than the suspended end.

[0009] The plurality of magnetic attraction plates are distributed equidistantly along the axial direction of the lubricating oil tank body, the magnetic attraction plates are distributed alternately with the flow guide plates, one end of the magnetic attraction plate is an active connection end and is movably arranged on the inner wall of the lubricating oil tank body, the other end of the magnetic attraction plate is a suspended end and has a gap with the lubricating oil tank body, and the magnetic attraction plate is arranged obliquely with the active connection end being higher than the suspended end.

[0010] One end of the threaded rod is movably arranged in one of the threaded rod mounting plates, and the other end of the threaded rod is movably arranged in the other threaded rod mounting plate.

[0011] The plurality of connection strips are movably arranged on the surface of the rear side of the threaded rod, the number of the connection strips is the same as that of the magnetic attraction plates, and the connection strips correspond to the magnetic attraction plates one by one.

[0012] The lubricating oil tank body is externally provided with a baffle plate.

[0013] The utility model also has the following technical features:

[0014] The oil tank comprises an oil tank outer cylinder, a motor is arranged at the center of the top of the oil tank outer cylinder, the rotating shaft of the motor penetrates the oil tank outer cylinder and is connected with an oil tank inner cylinder, the oil tank inner cylinder is coaxially arranged in the oil tank outer cylinder, a cavity formed by the oil tank inner cylinder is an oil filling cavity, an inner cylinder oil filling pipe is fixedly arranged on one side of the top of the oil tank inner cylinder, an inner cylinder oil outlet pipe is fixedly arranged on the other side of the bottom of the oil tank inner cylinder, the inner cylinder oil filling pipe, the oil filling cavity and the inner cylinder oil outlet pipe are sequentially connected, an outer cylinder oil filling pipe is fixedly arranged on one side of the top of the oil tank outer cylinder, the lubricating oil tank oil outlet pipe is sleeved on the outer cylinder oil filling pipe, the lubricating oil tank oil filling pipe, the lubricating oil tank, the lubricating oil tank oil outlet pipe and the outer cylinder oil filling pipe are sequentially connected, and an outer cylinder oil outlet pipe is fixedly arranged on the other side of the bottom of the oil tank outer cylinder.

[0015] The motor is provided with a motor protection shell arranged on the top surface of the oil tank outer cylinder; and the motor protection shell is provided with heat dissipation holes on the surface thereof.

[0016] The inner diameter of the oil tank outer cylinder is equal to the outer diameter of the oil tank inner cylinder, and the oil tank outer cylinder and the oil tank inner cylinder are both made of stainless steel and have smooth inner walls.

[0017] The inner diameter of the outer cylinder oil filling pipe is equal to the inner diameter of the inner cylinder oil filling pipe, and the inner diameter of the inner cylinder oil outlet pipe is equal to the inner diameter of the outer cylinder oil outlet pipe.

[0018] The number of the heat dissipation holes is six, and the six heat dissipation holes are uniformly distributed on the surface of the motor protection shell.

[0019] The outer surface of the gearbox is fixedly provided with a connecting plate, and the oil tank outer cylinder is fixedly arranged on the connecting plate; the connecting plate is provided with a through hole, and the outer cylinder oil outlet pipe extends into the gearbox through the through hole of the connecting plate.

[0020] The number of the flow guide plates is at least three, and the number of the magnetic plates is at least two.

[0021] Compared with the prior art, the utility model has the following technical effects:

[0022] (I) the utility model discloses a lubricating device, which comprises a motor, an oil tank outer cylinder, an oil tank inner cylinder, an outer cylinder oil filling pipe, an inner cylinder oil filling pipe, an outer cylinder oil outlet pipe, an inner cylinder oil outlet pipe, a motor protection shell, a heat dissipation hole, a gearbox, a connecting plate, a through hole, a flow guide plate, a magnetic plate, a handle, a handgrip, a baffle, a threaded rod, a connecting strip and a lubricating device.

[0023] Compared with the traditional lubricating device, the lubricating device of the utility model can absorb the metal particles in the oil, thereby avoiding the abrasion of the metal particles on the inside of the gearbox, and prolonging the service life of the gearbox; and the angle of the magnetic plate can be adjusted to more effectively capture and absorb the metal particles, thereby improving the absorption efficiency.

[0024] (II) the utility model discloses a lubricating device, which comprises a motor, an oil tank outer cylinder, an oil tank inner cylinder, an outer cylinder oil filling pipe, an inner cylinder oil filling pipe, an outer cylinder oil outlet pipe, an inner cylinder oil outlet pipe, a motor protection shell, a heat dissipation hole, a gearbox, a connecting plate, a through hole, a flow guide plate, a magnetic plate, a handle, a handgrip, a baffle, a threaded rod, a connecting strip and a lubricating device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the lubricating device of the gearbox.

[0026] Figure 2 Fig. 2 is a schematic diagram of the internal structure of the lubricating device.

[0027] Figure 3 Fig. 3 is a schematic diagram of the structure of the oil tank. Figure 2 Fig. 4 is a detailed enlarged view of the position circled by A in Fig. 3.

[0028] Figure 4 Fig. 5 is a schematic diagram of the structure of the oil tank. Figure 2 Fig. 6 is a detailed enlarged view of the position circled by B in Fig. 5.

[0029] Figure 5 Fig. 7 is a schematic diagram of the structure of the lubricating oil tank.

[0030] Figure 6 Fig. 8 is a detailed enlarged view of the position circled by C in Fig. 7. Figure 5

[0031] The meanings of the respective reference numerals in the drawings are as follows: 1 - gearbox, 2 - oil tank, 3 - lubricating oil tank, 4 - connecting plate.

[0032] 201 - outer cylinder of the oil tank, 202 - motor, 203 - inner cylinder of the oil tank, 204 - oil cavity, 205 - inner cylinder oil filling pipe, 206 - inner cylinder oil outlet pipe, 207 - outer cylinder oil filling pipe, 208 - outer cylinder oil outlet pipe, 209 - motor protection shell.

[0033] 301 - lubricating oil tank body, 302 - lubricating oil cavity, 303 - lubricating oil tank oil filling pipe, 304 - lubricating oil tank oil outlet pipe, 305 - flow guide plate, 306 - threaded rod mounting plate, 307 - threaded rod, 308 - connecting strip, 309 - magnetic attraction plate, 310 - baffle, 311 - handle.

[0034] 31001 - main rod of the baffle, 31002 - baffle pressing rod.

[0035] The specific contents in the utility model will be further explained and described in detail in combination with the embodiments. DETAILED DESCRIPTION

[0036] It should be noted that all the parts in the utility model, in the absence of special instructions, adopt the parts known in the art, for example: the gearbox 1 adopts the conventional gearbox known in the prior art. The motor 202 adopts the conventional electric motor known in the prior art.

[0037] ​The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications based on the technical solution of this application fall within the scope of protection of the present invention.

[0038] Example:

[0039] This embodiment provides a gearbox lubrication device, such as Figure 1 As shown, it includes a fuel tank 2 arranged on a gearbox 1; a lubricating oil tank 3 is arranged on one side of the top of the fuel tank 2. The lubricating oil tank 3, the fuel tank 2 and the gearbox 1 are sequentially connected, wherein the fuel tank 2 and the lubricating oil tank 3 together constitute a lubrication device.

[0040] like Figure 3 、 Figure 5 and Figure 6 As shown, the lubricating oil tank 3 includes a lubricating oil tank body 301, and the cavity surrounded by the lubricating oil tank body 301 is a lubricating oil chamber 302; a lubricating oil tank filling pipe 303 is fixedly provided at the center of the top end of the lubricating oil tank body 301, and a lubricating oil tank oil outlet pipe 304 is fixedly provided at the center of the bottom end of the lubricating oil tank body 301.

[0041] like Figure 5 and Figure 6 As shown, a plurality of guide plates 305 are provided in the lubricating oil chamber 302, and the plurality of guide plates 305 are distributed at equal intervals along the axial direction of the lubricating oil tank body 301; one end of the guide plate 305 is a suspended end and there is a gap between the guide plate 305 and the lubricating oil tank body 301, and the other end of the guide plate 305 is a fixed end and is fixedly set on the inner wall of the lubricating oil tank body 301, and the guide plate 305 is inclined and its fixed end is higher than the suspended end; a plurality of magnetic plates 309 are provided in the lubricating oil chamber 302, and the plurality of magnetic plates 309 are distributed at equal intervals along the axial direction of the lubricating oil tank body 301, and the magnetic plates 309 are staggered with the guide plates 305; one end of the magnetic plate 309 is a movable connection end and can be movably installed on the inner wall of the lubricating oil tank body 301, and the other end of the magnetic plate 309 is a suspended end and there is a gap between the guide plate 305 and the lubricating oil tank body 301, and the magnetic plate 309 is inclined and the movable connection end is higher than the suspended end.

[0042] like Figure 5 and Figure 6As shown, one side of the lubricating oil tank body 301 is fixedly provided with a pair of threaded rod mounting plates 306, and a threaded rod 307 is arranged between the threaded rod mounting plates 306 along the axial direction of the lubricating oil tank body 301, and the axial ends of the threaded rod 307 are movably mounted in the two threaded rod mounting plates 306, respectively; a plurality of connecting strips 308 are movably mounted on the rear surface of the threaded rod 307, and the number of the connecting strips 308 is the same as that of the magnetic plates 309, and the connecting strips 308 correspond to the magnetic plates 309 one by one; the inner end surface of the connecting strip 308 is a semicylindrical surface, and one end of the magnetic plate 309 is provided with a semicylindrical groove, and the inner end of the connecting strip 308 extends into the groove of the magnetic plate 309.

[0043] As shown in Figure 6 , the outer side of the lubricating oil tank body 301 is provided with a baffle 310; the baffle 310 includes a baffle main rod 31001 located on the outer side of the lubricating oil tank body 301, and the baffle main rod 31001 is parallel to the axial direction of the lubricating oil tank body 301; a handle 311 is fixedly arranged on the outer side of the baffle main rod 31001; a plurality of baffle pressing rods 31002 are integrally arranged on the inner side of the baffle main rod 31001, and the baffle pressing rods 31002 are perpendicular to the baffle main rod 31001, and the baffle pressing rods 31002 are movably mounted on the rear surface of the threaded rod 307.

[0044] In this embodiment, the magnetic plate 309 adsorbs the metal particles in the lubricating oil, and then changes the angle of the magnetic plate 309 to better adsorb the metal particles, thereby avoiding the wear of the gearbox caused by the metal particles, thereby prolonging the service life of the gearbox; at the same time, the handle 311 is manually operated to drive the baffle 310 to move up and down and drive the threaded rod 307 to move, thereby adjusting the angle of the magnetic plate 309, which can more effectively capture and adsorb the metal particles and improve the adsorption efficiency.

[0045] As shown in Figure 2 , Figure 3 , and Figure 4As shown in the figure, the oil tank 2 comprises an oil tank outer cylinder 201, a motor 202 is installed at the center of the top of the oil tank outer cylinder 201, the rotating shaft of the motor 202 penetrates through the oil tank outer cylinder 201 and is connected with an oil tank inner cylinder 203, the oil tank inner cylinder 203 is coaxially arranged in the oil tank outer cylinder 201, the cavity surrounded by the oil tank inner cylinder 203 is an oil tank cavity 204, an inner cylinder oil inlet pipe 205 is fixedly installed in one side of the top of the oil tank inner cylinder 203, an inner cylinder oil outlet pipe 206 is fixedly installed in the other side of the bottom of the oil tank inner cylinder 203, the inner cylinder oil inlet pipe 205, the oil tank cavity 204 and the inner cylinder oil outlet pipe 206 are sequentially communicated; an outer cylinder oil inlet pipe 207 is fixedly installed in one side of the top of the oil tank outer cylinder 201, the outer cylinder oil inlet pipe 207 is coaxially arranged with and communicated with a lubricating oil tank oil outlet pipe 304, the lubricating oil tank oil outlet pipe 304 is sleeved on the outer cylinder oil inlet pipe 207; an outer cylinder oil outlet pipe 208 is fixedly installed in the other side of the bottom of the oil tank outer cylinder 201.

[0046] In the embodiment, the rotation of the oil tank inner cylinder 203 enables the inner cylinder oil outlet pipe 206 to periodically coincide with the outer cylinder oil outlet pipe 208, thereby controlling the dropping position and time of the lubricating oil, ensuring that the lubricating oil can be uniformly distributed among all corners and parts of the gearbox 1, thereby helping to reduce the friction and wear between the parts and prolong the service life of the gearbox 1.

[0047] As a specific scheme of the embodiment, as shown in the figure, Figure 1 and Figure 2 As shown in the figure, a motor protection shell 209 is sleeved on the motor 202, and the motor protection shell 209 is arranged on the top surface of the oil tank outer cylinder 201; the surface of the motor protection shell 209 is provided with heat dissipation holes. In the embodiment, the motor 202 is arranged inside the motor protection shell 209 arranged on the top of the oil tank outer cylinder 201, so as to protect the motor 202 from being damaged by impact of objects, and the heat dissipation holes are arranged on the surface of the motor protection shell 209, so as to dissipate heat of the motor 202.

[0048] As a specific scheme of the embodiment, the inner diameter of the oil tank outer cylinder 201 is equal to the outer diameter of the oil tank inner cylinder 203, and the oil tank outer cylinder 201 and the oil tank inner cylinder 203 are both made of stainless steel and have smooth inner walls. In the embodiment, the inner diameter of the oil tank outer cylinder 201 is equal to the outer diameter of the oil tank inner cylinder 203, so as to improve the stability of the oil tank inner cylinder 203 when rotating in the oil tank outer cylinder 201, and the oil tank outer cylinder 201 and the oil tank inner cylinder 203 are both made of stainless steel and have smooth inner walls, so that the stainless steel has high strength and good rust resistance.

[0049] As a specific solution of the embodiment, the inner diameter of the outer tank oil filling pipe 207 is equal to the inner diameter of the inner tank oil filling pipe 205, and the inner diameter of the inner tank oil outlet pipe 206 is equal to the inner diameter of the outer tank oil outlet pipe 208. In the embodiment, by setting the inner diameter of the outer tank oil filling pipe 207 equal to the inner diameter of the inner tank oil filling pipe 205, and setting the inner diameter of the inner tank oil outlet pipe 206 equal to the inner diameter of the outer tank oil outlet pipe 208, the outer tank oil filling pipe 207 and the inner tank oil filling pipe 205 are more accurate when they are attached, and the inner tank oil outlet pipe 206 and the outer tank oil outlet pipe 208 are more accurate when they are attached, thereby ensuring that the path of the lubricating oil is more accurate.

[0050] As a specific solution of the embodiment, the number of heat dissipation holes is six, and the six groups of heat dissipation holes are uniformly distributed on the surface of the motor protection shell 209. In the embodiment, by setting six groups of heat dissipation holes and uniformly distributing the six groups of heat dissipation holes on the surface of the motor protection shell 209, the heat dissipation effect of the motor 202 can be improved.

[0051] As a specific solution of the embodiment, as shown in Figure 1 and Figure 2 , the outer surface of the gearbox 1 is fixedly installed with a connecting plate 4, and the outer tank 201 of the oil tank is fixedly installed on the connecting plate 4. The connecting plate 4 is provided with a through hole, and the outer tank oil outlet pipe 208 extends into the gearbox 1 through the through hole of the connecting plate 4.

[0052] As a specific solution of the embodiment, as shown in Figure 5 , the number of guide plates 305 is three, and the number of magnetic plates 309 is two.

[0053] As a specific solution of the embodiment, the gearbox 1 is made of aluminum alloy. In the embodiment, the gearbox 1 made of aluminum alloy is light in weight and has good heat dissipation effect.

[0054] As a specific solution of the embodiment, the corners of the gearbox 1 are all set in a chamfered shape, and the surface of the gearbox 1 is provided with a circular ring plate. In the embodiment, by setting the corners of the gearbox 1 in a chamfered shape and providing the surface of the gearbox 1 with a circular ring plate, the appearance of the gearbox 1 is improved, and the aesthetic feeling is increased.

[0055] As a specific solution of the embodiment, the bottom of the connecting plate 4 is designed in an arc shape. In the embodiment, by designing the bottom of the connecting plate 4 in an arc shape, the surface of the gearbox 1 can be better attached.

[0056] The working process of the utility model is as follows:

[0057] First, when the parts inside the gearbox 1 need to be lubricated, the staff first puts the lubricating oil into the lubricating oil cavity 302 from above the lubricating oil tank filler pipe 303, and the lubricating oil passes through the surface of the flow guide plate 305 and the magnetic attraction plate 309 in turn; when the lubricating oil passes through the surface of the flow guide plate 305, the flow guide plate 305 guides the lubricating oil, and then passes through the surface of the magnetic attraction plate 309 to adsorb the metal particles inside the oil, and at the same time the staff holds the handle 311 and pushes the baffle 310 up and down, the movement of the baffle 310 makes the threaded rod 307 rotate and move up and down, and the pressure of the baffle 310 makes the connecting strip 308 slide on the surface of the threaded rod 307, through the principle of lever to make the magnetic attraction plate 309 lift, so as to change the position of the magnetic attraction plate 309, so as to better adsorb the metal particles in the oil.

[0058] Second, then, the staff starts the motor 202 through the external switch, the power generated by the motor 202 makes the inner cylinder 203 of the oil tank rotate, when it rotates to the coaxial state of the inner cylinder oil filler pipe 205 and the outer cylinder oil filler pipe 207 and the coaxial state of the inner cylinder oil outlet pipe 206 and the outer cylinder oil outlet pipe 208, the lubricating oil in the lubricating oil cavity 302 flows into the oil filling cavity 204 through the lubricating oil tank oil outlet pipe 304, the outer cylinder oil filler pipe 207 and the inner cylinder oil filler pipe 205 in turn, and then flows into the gearbox 1 through the inner cylinder oil outlet pipe 206 and the outer cylinder oil outlet pipe 208 in turn, so as to lubricate the parts inside the gearbox 1; when the inner cylinder 203 of the oil tank rotates one revolution, the inner cylinder oil filler pipe 205 and the outer cylinder oil filler pipe 207 are coaxial again, and the inner cylinder oil outlet pipe 206 and the outer cylinder oil outlet pipe 208 are coaxial again, and then the parts inside the gearbox 1 are lubricated again.

Claims

1. A lubricating device for a gearbox, characterized in that Including set up on the gearbox (1) oil tank (2), the oil tank (2) top one side is provided with lubricating oil tank (3); The lubricating oil tank (3) includes a lubricating oil tank body (301), and a lubricating oil cavity (302) is formed in the lubricating oil tank body (301); a lubricating oil tank filler pipe (303) is fixedly arranged at the center of the top end of the lubricating oil tank body (301), and a lubricating oil tank oil outlet pipe (304) is fixedly arranged at the center of the bottom end of the lubricating oil tank body (301); A plurality of guide plates (305) are arranged in the lubricating oil cavity (302) and are distributed at equal intervals along the axial direction of the lubricating oil tank body (301); one end of the guide plate (305) is a suspended end and has a gap with the lubricating oil tank body (301), and the other end of the guide plate (305) is a fixed end and is fixedly arranged on the inner wall of the lubricating oil tank body (301), and the guide plate (305) is arranged obliquely with the fixed end being higher than the suspended end; A plurality of magnetic plates (309) are arranged in the lubricating oil cavity (302) and are distributed at equal intervals along the axial direction of the lubricating oil tank body (301), and the magnetic plates (309) and the guide plates (305) are arranged alternately; one end of the magnetic plate (309) is an active connection end and is movably mounted on the inner wall of the lubricating oil tank body (301), and the other end of the magnetic plate (309) is a suspended end and has a gap with the lubricating oil tank body (301), and the magnetic plate (309) is arranged obliquely with the active connection end being higher than the suspended end; One pair of threaded rod mounting plates (306) is fixedly mounted on one side of the lubricating oil tank body (301), and a threaded rod (307) is arranged between the threaded rod mounting plates (306) along the axial direction of the lubricating oil tank body (301), and the axial ends of the threaded rod (307) are movably mounted in the threaded rod mounting plates (306), respectively; A plurality of connecting strips (308) are movably mounted on the surface of the rear side of the threaded rod (307), the number of the connecting strips (308) is the same as that of the magnetic plates (309), and the connecting strips (308) and the magnetic plates (309) correspond one by one; the inner end surface of the connecting strip (308) is a semicylindrical surface, one end of the magnetic plate (309) is provided with a semicylindrical groove, and the inner end of the connecting strip (308) extends into the groove of the magnetic plate (309); The lubricating oil tank body (301) is provided with a baffle (310) on one side thereof; the baffle (310) comprises a baffle main rod (31001) located outside the lubricating oil tank body (301), the baffle main rod (31001) is parallel to the axial direction of the lubricating oil tank body (301); a handle (311) is fixedly arranged on the outer side of the baffle main rod (31001); a plurality of baffle pressing rods (31002) are integrally arranged on the inner side of the baffle main rod (31001), the baffle pressing rods (31002) are perpendicular to the baffle main rod (31001), and the baffle pressing rods (31002) are movably arranged on the surface of the rear side of the threaded rod (307).

2. A lubricating device for a gearbox according to claim 1, characterized in that The oil filling tank (2) comprises an oil filling tank outer cylinder (201), a motor (202) is installed at the center of the top of the oil filling tank outer cylinder (201), the rotating shaft of the motor (202) penetrates through the oil filling tank outer cylinder (201) and is connected with an oil filling tank inner cylinder (203), the oil filling tank inner cylinder (203) is coaxially arranged in the oil filling tank outer cylinder (201), a cavity formed by the oil filling tank inner cylinder (203) is an oil filling cavity (204), an inner cylinder oil filling pipe (205) is fixedly arranged in one side of the top of the oil filling tank inner cylinder (203), an inner cylinder oil outlet pipe (206) is fixedly arranged in the other side of the bottom of the oil filling tank inner cylinder (203), the inner cylinder oil filling pipe (205), the oil filling cavity (204) and the inner cylinder oil outlet pipe (206) are sequentially and communicatively connected; an outer cylinder oil filling pipe (207) is fixedly arranged in one side of the top of the oil filling tank outer cylinder (201), and an oil outlet pipe (304) of the lubricating oil tank is sleeved on the outer cylinder oil filling pipe (207); an oil filling pipe (303) of the lubricating oil tank, an oil cavity (302) of the lubricating oil tank, the oil outlet pipe (304) of the lubricating oil tank and the outer cylinder oil filling pipe (207) are sequentially and communicatively connected; an outer cylinder oil outlet pipe (208) is fixedly arranged in the other side of the bottom of the oil filling tank outer cylinder (201).

3. A lubricating arrangement for a gearbox as claimed in claim 2, characterised in that, The motor (202) is sleeved with a motor protection shell (209), and the motor protection shell (209) is arranged on the top surface of the oil filling tank outer cylinder (201); and a plurality of heat dissipation holes are formed in the surface of the motor protection shell (209).

4. The lubricating device of a gearbox according to claim 2, characterized in that, The inner diameter of the oil filling tank outer cylinder (201) is equal to the outer diameter of the oil filling tank inner cylinder (203), and the oil filling tank outer cylinder (201) and the oil filling tank inner cylinder (203) are both made of stainless steel and have smooth inner walls.

5. The lubricating device of a gearbox according to claim 2, wherein The inner diameter of the outer cylinder oil filling pipe (207) is equal to the inner diameter of the inner cylinder oil filling pipe (205), and the inner diameter of the inner cylinder oil outlet pipe (206) is equal to the inner diameter of the outer cylinder oil outlet pipe (208).

6. The lubricating device of a gearbox according to claim 3, wherein The six groups of heat dissipation holes are evenly distributed on the surface of the motor protection shell (209).

7. The lubricating device of a transmission according to claim 1, wherein The outer surface of the gearbox (1) is fixedly provided with a connecting plate (4), and the oil filling tank outer cylinder (201) is fixedly arranged on the connecting plate (4); a through hole is formed in the connecting plate (4), and the outer cylinder oil outlet pipe (208) penetrates through the through hole of the connecting plate (4) and extends into the gearbox (1).

8. The lubricating device of a transmission according to claim 1, wherein The number of the flow guide plates (305) is at least three, and the number of the magnetic attraction plates (309) is at least two.

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