CN219655800U

CN219655800U - Lubricating oil filling device

Info

Publication number: CN219655800U
Application number: CN202320704577.5U
Authority: CN
Inventors: 郭学龙; 雷伟彬; 彭勇; 邓瑞
Original assignee: GAC Motor Co Ltd
Current assignee: GAC Motor Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-09-08
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a lubricating oil filling device which comprises an oil filling cavity, an electric control assembly and a driving assembly, wherein one end of the oil filling cavity is provided with an oil valve, an oil pipeline is connected to the oil valve, a piston used for separating the cavity into a first cavity and a second cavity which are not communicated with each other is arranged in the oil filling cavity, the second cavity is communicated with the oil valve, the electric control assembly controls the driving assembly to drive the piston to reciprocate between two ends of the oil filling cavity, one side of the piston is connected with a piston rod, the free end of the piston rod penetrates out of the oil filling cavity and is provided with a proximity switch, the proximity switch is in communication connection with the electric control assembly, a plurality of induction blocks which can be matched with the proximity switch are arranged on one side of the proximity switch at intervals along a moving path of the proximity switch, compared with the existing automatic oil filling device, the input cost of parts of the device is reduced, the quantity of the oil filling is changed from the control of a displacement sensor into the stroke induction of a pneumatic control trigger rod, the quantity of parts of the device can be simplified, and the failure rate of the device is reduced.

Description

Lubricating oil filling device

Technical Field

The utility model relates to the technical field of working medium filling devices, in particular to a lubricating oil filling device.

Background

In the process of large-scale industrial production, a lubricating oil filling device is an essential device for ensuring smooth operation of a production line for a long time. In most cases, lubrication of joint components such as production line bearings is also manually maintained. When manually filling, an operator holds the oil filling pipeline to fill lubricating grease or lubricating oil into the bearing filling port, and the filling amount completely depends on the proficiency and experience of the operator. The filling quality of the lubricating oil is difficult to ensure by means of manual filling, and insufficient filling or excessive filling is easy to occur, so that the lubrication state of a bearing or other workpieces can be influenced.

Second, for some large-scale production lines, there are safety hazards to the location of the workpieces that require lubrication, for example, in-shop bearing applications where the elevator drive and its scissor articulation are located, often high or at the back of the equipment. When filling lubricating oil, need operating personnel to promote the trolley that carries filling equipment and lubricating oil to each filling point, then climb to the eminence and carry out the filling action, perhaps squeeze into the narrow and small space at equipment back and carry out the filling action, maintenance operation consumes time to the operating personnel, the handheld filling equipment needs the climbing again, has certain potential safety hazard.

Therefore, the adoption of equipment capable of quantitatively and automatically filling lubricating oil is necessary for improving efficiency and reducing potential safety hazards. At present, the existing automatic lubricating oil pump on the market needs to be combined with a programmable controller for use, and the number of structural parts of the lubricating oil pump is large. The power source of the automatic lubricating oil pump can be generally divided into mechanical driving and pneumatic driving, no matter which driving mode is adopted, the accurate control of the oil injection amount is usually realized by utilizing structural coordination of a displacement sensor, a quantitative rod, an inner ratchet gear and the like. The number of parts required for any automatic lubrication pump is large, so that the failure rate is relatively high, and the time and cost are difficult for later maintenance. In addition, the automatic lubrication pump has large overall size and high cost, and is not suitable for being arranged at each filling point. In view of the above, it is desirable to provide a lubricant filling device that has a simple structure, is convenient to use, has low manufacturing cost, and can achieve quantitative and automatic filling.

Disclosure of Invention

The utility model aims to overcome the defects of large overall size, high manufacturing cost, large number of parts and high failure rate of the existing automatic lubricating oil pump, and provides the lubricating oil filling device, which reduces the input cost of parts such as a touch screen, a motor and the like, changes the control of a displacement sensor into the pneumatic control of the stroke induction of a trigger rod by the oil filling quantity, and can simplify the number of the parts of the device, thereby reducing the failure rate of equipment.

The technical scheme adopted by the utility model is as follows:

the utility model provides a lubricating oil filling device, includes oiling cavity, automatically controlled subassembly and actuating assembly, oiling cavity one end is equipped with the oil valve, is connected with oil pipeline on the oil valve, is equipped with the piston that is used for separating the cavity into first cavity and second cavity that are not intercommunicated in the oiling cavity, and the second cavity communicates with the oil valve, and automatically controlled subassembly control actuating assembly drives the piston and carries out reciprocating motion between oiling cavity both ends, and piston one side is connected with the piston rod, and the free end of piston rod wears out the oiling cavity and is provided with proximity switch, proximity switch and automatically controlled subassembly communication connection, oiling cavity be equipped with a plurality of can with proximity switch complex response piece along proximity switch travel path interval in proximity switch one side.

The working principle of the utility model is as follows: when in use, the utility model is fixed on the lubricating oil filling point, and the free end of the oil pipeline faces to the part needing to be filled with lubricating oil and is kept relatively fixed with the free end. The driving assembly is controlled by the electric control assembly to trigger the piston to act, so that the piston is pushed to move towards the oil valve in the oil injection cavity, the space of the second cavity is compressed, and lubricating oil or other lubricating media are filled in the second cavity. Under the extrusion of the piston, the lubricating medium overflows from the oil valve and is conveyed to the corresponding part needing to be filled with lubricating oil through the oil conveying pipeline. The piston can drive the piston rod connected with the piston to synchronously move in the process of moving towards the oil valve, and simultaneously, the proximity switch is also driven to synchronously move. When the proximity switch moves to be close to or abutted against the sensing block, the proximity switch receives a signal of the sensing block and sends the signal to the electric control assembly, the electric control assembly stops the action of the driving assembly after receiving the signal, and at the moment, the piston stops moving to finish one-time lubrication medium filling. The interval time of the filling action is set through the electric control assembly, and when the next filling period is up, the electric control assembly can likewise control the driving assembly to trigger the piston to act, and the filling of the lubricating medium for the other time is completed until the lubricating medium in the second chamber is completely extruded. The volume of lubrication medium filled can be conveniently calculated according to the moving distance of the piston (i.e. the distance between two adjacent sensing blocks) and the cross-sectional area of the second chamber. In other words, the quantitative and timing filling effect can be realized under the control of the electric control component only by adjusting the interval between two adjacent induction blocks corresponding to the specific filling amount. When the lubricating medium in the second chamber is exhausted, an operator only needs to extend the free end of the oil pipeline into the lubricating medium raw material, the electric control assembly is started, the driving assembly can trigger the piston to move towards the direction away from the oil valve, at the moment, the volume of the second chamber is increased, the lubricating medium is injected into the second chamber under the action of pressure difference, and the filling of the lubricating medium is completed; after filling, the oil pipeline can be restored.

Further, in order to simplify the structure and the number of parts of the utility model, an air valve is arranged at one end of the oiling cavity far away from the oil valve, an air supply pipeline is connected to the air valve, and the air valve is communicated with the first chamber. The electric control assembly controls the opening and closing of the air valve and the air flowing direction. Compared with the existing automatic lubricating oil pump which utilizes a plurality of gears, springs and the like to control extrusion and injection of lubricating media, the automatic lubricating oil pump achieves the same effect by utilizing air pressure only, and other parts are not arranged in the oil injection cavity, so that the effects of simplifying the structure and reducing the failure rate are achieved. The driving component is an air pump arranged on the air supply pipeline, and when lubricating oil needs to be filled, the air pump charges air into the first chamber; when the lubricating oil is needed to be replenished, the air pump is deflated under the control of the electric control assembly, so that the air pressure in the first cavity is reduced, and the lubricating oil is sucked into the second cavity by utilizing the atmospheric pressure.

Further, the air supply pipeline is also provided with an electromagnetic valve which is in communication connection with the electric control assembly, and the electromagnetic valve is connected with a muffler. The electromagnetic valve is an existing two-position three-way valve, and three connecting ports of the electromagnetic valve are respectively connected with the air pump, the air valve and the muffler. When filling, the two-position three-way valve is switched to the first gear under the control of the electric control assembly, at the moment, the air supply pipeline is opened, the electric control assembly starts the air pump to charge air into the first cavity, air is injected into the first cavity, the piston is pushed to move towards the direction of the second cavity, and the lubricating medium is extruded to finish filling action. When the lubricating oil needs to be replenished, the two-position three-way valve still keeps at the first gear, at the moment, the electric control assembly starts the air pump to pump air outwards from the first cavity, a negative pressure space is formed in the first cavity, and the lubricating medium is injected into the second cavity by the atmospheric pressure to complete the replenishment of the lubricating medium. When the air pump is stopped, the air pump is closed, the first chamber is kept in a closed state, and the piston is kept stationary. When the air in the first cavity needs to be released, the electric control assembly controls the two-position three-way valve to be switched to the second gear, the air in the first cavity is discharged and diffused into the atmosphere through the muffler, noise emitted by the valve is reduced in the ventilation process, and the site environment is optimized.

Furthermore, the side of the air supply pipeline, which is close to the air valve, is also provided with a pressure reducing valve for adjusting the pressure of the air inlet of the first chamber, so that the deviation of the lubricating oil filling amount caused by too high or too low air pressure is avoided.

Further, the pressure reducing valve is connected with a barometer for monitoring the air pressure in the first chamber, so that an operator can conveniently read air pressure data.

Further, be equipped with the ball valve that is used for shutoff or opening the pipeline on the oil pipeline, can close the ball valve when changing the oil pipeline, ensure that the lubrication medium in the second cavity can not spill over.

Furthermore, the oil pipeline is made of polytetrafluoroethylene, has extremely low friction coefficient, good wear resistance and excellent chemical stability, and can not cause adhesion or extremely small adhesion amount when being used for transporting lubricating media, thereby ensuring the accuracy of single filling amount.

Further, the electric control assembly comprises a PLC controller, and a filling button, a reverse button and a stop button which are arranged on the PLC controller, wherein the buttons are used for controlling the working state of the driving assembly. The PLC controller is a common controller in the prior art. The filling button can be used for manually filling lubricating oil under the condition of manual operation, and the driving assembly, namely the air pump, can be triggered to charge air into the first chamber after the filling button is pressed down; the reverse button is pressed when the lubricating oil needs to be replenished, the air pump is triggered to pump air from the first cavity, the air pressure in the first cavity is reduced, and the lubricating oil is sucked into the second cavity through the oil conveying pipeline under the action of the atmospheric pressure; when filling is abnormal, the air pump can stop filling action through the stop button, so that the protection effect is achieved.

Further, the oiling cavity is cylindrical, a front end plate and a rear end plate are respectively arranged at two ends of the oiling cavity, a plurality of protection strips are connected between the front end plate and the rear end plate, and the protection strips are arranged on the periphery of the oiling cavity. The distance between two adjacent sensing blocks is a, and the inner radius of the oil injection cavity is r, so that the single oil injection quantity S can be calculated as follows:

S＝aπr ²

therefore, after the sensor block is triggered by the switch once, the piston stops operating, and the injected filling amount is S. The front end plate and the rear end plate are respectively arranged at the front end and the rear end of the oil injection cavity, and a plurality of protection strips are connected between the front end plate and the rear end plate, so that the appearance of the oil injection cavity can be protected from deformation during carrying and conveying the oil injection cavity, and the accuracy of the filling amount is ensured.

Further, a flash alarm is also arranged on the rear end plate, and the flash alarm is in communication connection with the electric control assembly. When the lubrication medium in the second cavity is used up, namely when the proximity switch and the last induction block generate induction signals, the flash alarm gives out alarm sound and light to remind operators of completing the replenishment of the lubrication medium as soon as possible.

Compared with the prior art, the utility model has the beneficial effects that:

1. compared with the existing automatic lubricating oil pump, the utility model reduces the input cost of parts such as a displacement sensor, a quantitative rod, an inner ratchet gear and the like, changes the control of the displacement sensor into the pneumatic control of the stroke induction of a trigger rod, and can simplify the number of parts of the device, thereby reducing the failure rate of equipment;

2. the utility model can effectively reduce the occupied space of equipment, is convenient for the equipment to be distributed at fixed lubricating oil filling points, and can improve the efficiency of manual maintenance and reduce the hidden danger of operation by arranging automatic quantitative filling of lubricating oil;

3. the utility model has simple integral structure, adopts pneumatic control, reduces electric energy loss, has low manufacturing and using cost, uses common parts which are easy to assemble, has strong popularization and is suitable for enterprises of various scales.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a cross-sectional view at B-B in fig. 1.

In the accompanying drawings:

1-an oil injection cavity; 101-a first chamber; 102-a second chamber; 103-a piston; 201-an oil valve; 202-an oil pipeline; 203-a ball valve; 3-an air pump; 301-an air valve; 302-an air supply pipeline; 303-an electromagnetic valve; 304-a muffler; 305-a pressure reducing valve; 306-barometer; 4-a piston rod; 5-proximity switch; 6, a sensing block; 701-a PLC controller; 702-fill button; 703-a reverse button; 704-stop button; 801-a front end plate; 802-rear end plate; 803-protective strips; 9-flashing alarm.

Detailed Description

The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "front", "rear", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances. Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Embodiment one:

as shown in fig. 1 or fig. 3, this embodiment provides a lubricating oil filling device, including oil injection cavity 1, electric control unit and actuating unit, oil injection cavity 1 one end is equipped with oil valve 201, is connected with oil pipeline 202 on the oil valve 201, is equipped with in the oil injection cavity 1 to be used for separating the cavity into the piston 103 of each other first cavity 101 and second cavity 102 that do not communicate, and second cavity 102 communicates with oil valve 201, and electric control unit control actuating unit drives piston 103 and carries out reciprocating motion between the oil injection cavity 1 both ends, and piston 103 one side is connected with piston rod 4, and the free end of piston rod 4 wears out cavity 1 and is provided with proximity switch 5, proximity switch 5 and electric control unit communication connection, and oil injection cavity 1 is equipped with a plurality of sensing pieces 6 that can cooperate with proximity switch 5 along proximity switch 5 travel path interval in proximity switch 5 one side.

In use, the present embodiment is first secured to the lubrication fill point and the free end of the oil delivery line 202 is directed toward the location where lubrication is desired. The driving assembly is controlled by the electric control assembly to trigger the piston 103 to act, so that the piston 103 is pushed to move in the direction of the oil valve 201 in the oil injection cavity 1, the space of the second chamber 102 is compressed, and lubricating oil or other lubricating media are filled in the second chamber 102. Under the compression of the piston 103, the lubricating oil overflows from the oil valve 201 and is conveyed to the corresponding part needing to be filled with the lubricating oil through the oil conveying pipeline 202. The oil delivery pipeline 202 is made of polytetrafluoroethylene, has an extremely low friction coefficient, and is used for conveying lubricating oil without causing adhesion of the lubricating oil or enabling the adhesion amount to be extremely small, so that the accuracy of single filling amount is ensured. Meanwhile, the ball valve 203 is further arranged on the oil pipeline 202, and the ball valve 203 can be closed when the oil pipeline is replaced, so that the lubricating oil in the second chamber 102 is ensured not to flow out. The piston 103 drives the piston rod 4 connected with the piston 103 to synchronously move in the process of moving towards the oil valve 201, and simultaneously drives the proximity switch 5 to synchronously move. When the proximity switch 5 moves to approach or abut against the sensing block 6, the proximity switch receives a signal of the sensing block 6 and sends the signal to the electric control assembly, the electric control assembly stops the action of the driving assembly after receiving the signal, and at the moment, the piston 103 stops moving, so that the filling of lubricating oil is completed once.

By setting the interval time of the filling action by the electric control assembly, when the next filling period is up, the electric control assembly can likewise control the driving assembly to trigger the piston 103 to act, and the filling of the lubricating oil for the other time is completed until the lubricating oil in the second chamber 102 is completely extruded. The volume of lubricating oil to be filled can be conveniently calculated based on the moving distance of the piston 103 (i.e., the distance between the adjacent two sensing pieces 6) and the cross-sectional area of the second chamber 102. In this embodiment, four lubrication oil is required to be filled into a specific position within a period of one year, and thus four sensing blocks 6 are provided at intervals in this embodiment. In a one year time period, the four times of quantitative filling of lubricating oil can be automatically completed through the matching of the electric control assembly, the proximity switch 5 and the sensing block 6. When the lubrication medium in the second chamber 102 is exhausted, an operator only needs to extend the free end of the oil pipeline 202 into the lubrication medium raw material, start the electric control assembly, the driving assembly can trigger the piston 103 to move towards the direction away from the oil valve 201, at this time, the volume of the second chamber 102 is increased, the lubrication medium is injected into the second chamber 102 under the action of pressure difference, and the filling of the lubrication medium is completed; after filling is completed, the oil delivery pipeline 202 can be restored. Compared with the existing manual filling mode, an operator only needs to supplement the lubricating oil once a year, does not need to carry oiling equipment to climb and the like, improves the working efficiency, and reduces the operation risk.

Embodiment two:

as shown in fig. 1 or fig. 3, in order to simplify the structure and the number of parts of the lubricating oil filling device, on the basis of the first embodiment, the oil filling cavity 1 is provided with an air valve 301 at one end far away from the oil valve 201, the air valve 301 is connected with an air supply pipeline 302, and the air valve 301 is communicated with the first chamber 101. Meanwhile, in order to improve the universality of the embodiment, the driving component is an air pump 3 arranged on the air supply pipeline 302, and when lubricating oil needs to be filled, the air pump 3 charges air into the first chamber 101; when the lubricating oil needs to be replenished, the air pump 3 is deflated under the control of the electric control assembly, so that the air pressure in the first chamber 101 is reduced, and the lubricating oil is sucked into the second chamber 102 by utilizing the atmospheric pressure.

The air supply pipeline 302 is also provided with an electromagnetic valve 303, and the electromagnetic valve 303 is connected with a muffler 304. The electromagnetic valve 303 is an existing two-position three-way valve, and three connection ports of the electromagnetic valve are respectively connected with the air pump 3, the air valve 301 and the muffler 304. During filling, the two-position three-way valve is switched to a first gear under the control of the electric control assembly, at the moment, the air supply pipeline 302 is opened, the electric control assembly starts the air pump 3 to charge air into the first chamber 101, air is injected into the first chamber 101, the piston 103 is pushed to move towards the direction of the second chamber 102, and the lubricating medium is extruded to finish filling action. When the lubricating oil needs to be replenished, the two-position three-way valve still keeps at the first gear, at the moment, the electric control assembly starts the air pump 3 to pump air outwards from the first chamber 101, a negative pressure space is formed in the first chamber 101, and the lubricating medium is injected into the second chamber 102 by atmospheric pressure to complete the replenishment of the lubricating medium. When stopped, the air pump 3 is closed, the first chamber 101 is kept closed, and the piston 103 is kept stationary. When the air in the first chamber 101 needs to be released, the electric control assembly controls the two-position three-way valve to be switched to the second gear, the air in the first chamber 101 is discharged and diffused into the atmosphere through the muffler 304, the noise emitted by the air valve 301 is reduced in the ventilation process, and the site environment is optimized.

The air supply pipeline 302 is further provided with a pressure reducing valve 305 for adjusting the air inlet pressure of the first chamber 101 at one side close to the air valve 301, so that deviation of lubricating oil filling amount caused by too high or too low air pressure is avoided. And, be connected with the barometer 306 that is used for monitoring the inside atmospheric pressure of first cavity 101 on relief pressure valve 305, make things convenient for the operating personnel to read air pressure data.

Embodiment III:

as shown in fig. 1, 2 or 3, based on the first embodiment or the second embodiment, the oil filling cavity 1 is cylindrical, two ends of the oil filling cavity are respectively provided with a front end plate 801 and a rear end plate 802, the front end plate 801 and the rear end plate 802 are both rectangular structures made of soft plastic materials, and the side length of each rectangular structure is slightly larger than the section diameter of the oil filling cavity 1. Four protection strips 803 are connected between the front end plate 801 and the rear end plate 802, each protection strip 803 is connected to the corners of the front end plate 801 and the rear end plate 802, and the protection strips 803 are arranged on the periphery of the oil injection cavity 1. The distance between two adjacent sensing blocks 6 is a, and the inner radius of the oil injection cavity 1 is r, so that the single oil injection quantity S can be calculated as follows:

S＝aπr ²

therefore, after the proximity switch 5 activates the sensing block 6 once, the piston 103 stops operating, and the volume of the injected lubricating oil is S. The front end plate 801, the rear end plate 802 and the protective strips 803 can protect the appearance of the oil filling cavity 1 from deformation during carrying and conveying of the embodiment, and ensure the accuracy of filling amount. The rear end plate 803 is also provided with a flash alarm 9, and the flash alarm 9 is in communication connection with the electronic control assembly. When the lubrication medium in the second chamber 102 is used up, the flashing alarm 9 gives out an alarm sound and light to remind an operator to finish the replenishment of the lubrication medium as soon as possible.

The electric control assembly comprises a PLC controller 701, a filling button 702, a reverse button 703 and a stop button 704 which are arranged on the PLC controller 701. The PLC controller 701 is a controller commonly known in the art. The filling button 702 can be manually filled with lubricating oil under the condition of manual operation, and the driving assembly, namely the air pump 3, can be triggered to charge air into the first chamber 101 after the filling button 702 is pressed down; the reverse button 703 is pressed when the lubricant needs to be replenished, the air pump 3 is triggered to pump air from the first chamber 101, the air pressure in the first chamber 101 is reduced, and the lubricant is sucked into the second chamber 102 through the oil pipeline under the action of the atmospheric pressure; when filling is abnormal, the air pump 3 can stop filling action through the stop button 704, so that the protection function is realized.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a lubricating oil filling device, includes annotates oil pocket (1), automatically controlled subassembly and actuating assembly, annotates oil pocket (1) one end and is equipped with oil valve (201), is connected with oil pipeline (202) on oil valve (201), is equipped with in annotating oil pocket (1) and is used for separating the cavity into piston (103) of first cavity (101) and second cavity (102) that are each other not linked together, second cavity (102) and oil valve (201) intercommunication, automatically controlled subassembly control actuating assembly drives piston (103) and carries out reciprocating motion between oiling cavity (1) both ends, a serial communication port, piston (103) one side is connected with piston rod (4), and the free end of piston rod (4) wears out annotating oil pocket (1) and is provided with proximity switch (5), proximity switch (5) and automatically controlled subassembly communication connection, oiling cavity (1) are equipped with a plurality of sensing blocks (6) that can take place the response effect with proximity switch (5) along proximity switch (5) travel path interval in proximity switch (5) one side.

2. Lubricating oil filling device according to claim 1, characterized in that the oil filling cavity (1) is provided with an air valve (301) at one end far away from the oil valve (201), the air valve (301) is connected with an air supply pipeline (302), the air valve (301) is communicated with the first chamber (101), and the driving assembly is an air pump (3) arranged on the air supply pipeline (302).

3. Lubricating oil filling device according to claim 2, characterized in that the air supply line (302) is further provided with a solenoid valve (303), the solenoid valve (303) is in communication connection with the electronic control unit, and the solenoid valve (303) is connected with a muffler (304).

4. A lubrication oil filling device according to claim 2 or 3, characterized in that the side of the air supply line (302) adjacent to the air valve (301) is further provided with a pressure reducing valve (305) for regulating the air inlet pressure of the first chamber (101).

5. Lubricating oil filling device according to claim 4, characterized in that a barometer (306) is connected to the relief valve (305) for monitoring the air pressure in the first chamber (101).

6. Lubricating oil filling device according to claim 1, characterised in that the oil delivery line (202) is provided with a ball valve (203) for closing or opening the line.

7. The lubrication oil filling device according to claim 6, wherein the oil delivery pipe (202) is made of polytetrafluoroethylene.

8. A lubrication oil filling device according to claim 1 or 3 or 7, wherein the electronic control assembly comprises a PLC controller (701), and the buttons provided on the PLC controller (701) comprise a filling button (702), a reversing button (703), a stop button (704) for controlling the operating state of the drive assembly.

9. The lubricating oil filling device according to claim 8, characterized in that the oil filling cavity (1) is cylindrical, a front end plate (801) and a rear end plate (802) are respectively arranged at two ends of the oil filling cavity, a plurality of protection strips (803) are connected between the front end plate (801) and the rear end plate (802), and the protection strips (803) are arranged on the periphery of the oil filling cavity (1).

10. Lubricating oil filling device according to claim 9, characterized in that the rear end plate (802) is further provided with a flashing alarm (9), the flashing alarm (9) being in communication with the electronic control unit.