CN218762618U

CN218762618U - Grease pump system

Info

Publication number: CN218762618U
Application number: CN202223308295.8U
Authority: CN
Inventors: 吴立桃; 张明明; 秦邦江; 魏龙刚; 韩朝辉; 颜子平; 杨敏
Original assignee: China Railway Construction Heavy Industry Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-03-28
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a grease pump system, which comprises a grease pump, a grease barrel, an energy accumulator and an oil transfer pump; the utility model provides a grease bucket passes through the grease storage chamber and the energy storage ware intercommunication of pipeline with the grease pump, and each part can be arranged wantonly according to equipment space, can solve the limited problem in grease pump installation space, the utility model provides a barrel construction and the frizing structure of grease pump upper end can be taken away to the grease pump system, can further optimize the limited problem of installation and simplify the structure of grease pump, and the utility model discloses a pipeline direct grease storage chamber can realize that the grease lasts as required and carries, has solved artifical frequent oil feeding and has caused the problem that grease pollutes and intensity of labour is big, and the utility model discloses in still through increasing the energy storage ware, the oil absorption of giving the grease pump has increased certain pressure, and the grease of grease pump can be sent into the pump head through certain pressure in with the grease pump head, will effectively reduce the empty problem that the grease pump flow is unstable of grease pump suction.

Description

Grease pump system

Technical Field

The utility model relates to a tunnelling lubrication field, concretely relates to grease pump system.

Background

Lubricating grease is a consumed material in the tunneling process of a shield tunneling machine, the grease consumption is high in the tunneling construction process, the conventional small-diameter shield tunneling machine or a special-shaped shield tunneling machine (a pneumatic grease pump with a large-capacity grease barrel cannot be arranged in an equipment space) can only adopt an electric grease pump to inject sealing grease into a sealing cavity and a lubricating point position, the shield tunneling machine is limited by the equipment tunneling space, the volume of a storage barrel of the grease injection pump of the shield tunneling machine is generally 20-30L, the grease barrel needs to be replaced frequently manually or is directly supplemented into the grease barrel to guarantee that the equipment is tunneled, the grease supplementing frequency is frequent, the workload is high, the working environment is severe, impurities are easily brought in the oil supplementing process, and the equipment stability is influenced.

The prior art has the following problems: 1. the oil storage barrel of the existing electric oil pump of the shield tunneling machine is communicated with the atmosphere, the oil barrel must be kept vertically upward, the oil flows into the oil suction port of the pump head under the action of gravity, and the normal operation of the oil pump can be ensured; 2. the capacity of the existing grease barrel is 10-30L, grease needs to be supplemented into the grease barrel of the grease pump manually after equipment is tunneled for a period of time, in a field, a worker adds the grease by using a spoon, and due to the fact that the field environment is moist, dust and muddy water are more, the environment is severe, impurities are easily brought in the operation process, and pollution to a grease system is caused.

In view of the above, there is a need for a grease pump system to solve the problems of large space occupation, unstable flow output and easy contamination during grease replenishment in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grease pump system to solve among the prior art space occupy big, the flow output is unstable and easy contaminated problem when supplementing the grease, concrete technical scheme as follows:

a grease pump system comprises a grease pump, a grease barrel, an energy accumulator and an oil delivery pump;

the grease pump is provided with a grease storage cavity; the outlet of the grease barrel is communicated with the inside of the grease storage cavity through a pipeline; the energy accumulator is communicated with the pipeline; the oil transfer pump is arranged on the pipeline and used for transferring the grease in the grease barrel to the grease storage cavity and the energy accumulator; and a grease outlet of the grease pump is communicated with a point position needing to be lubricated from the outside.

The preferable technical proposal also comprises a one-way valve arranged on the pipeline; the check valve is located between the energy accumulator and the oil transfer pump, and the flow-allowing direction of the check valve is from the oil transfer pump to the energy accumulator.

Above technical scheme is preferred, still include the filter of setting on the pipeline, the filter is located between check valve and the fuel delivery pump.

The preferable technical proposal also comprises a safety valve; the inlet of the safety valve is communicated with the pipeline, and the outlet of the safety valve is communicated with the grease barrel.

Above technical scheme is preferred, still include the pressure sensor who is used for monitoring grease storage appearance intracavity pressure.

The preferable technical scheme also comprises an oil supplementing pump; the inlet of the oil supplementing pump is communicated with an external grease source, and the outlet of the oil supplementing pump is communicated with the grease barrel.

According to the preferable technical scheme, the inside of the grease storage cavity of the grease pump is a closed space.

Preferably, the grease pump comprises a pump body, a pump head mechanism, a cam disc and a driving mechanism;

the grease storage cavity is arranged on the pump body;

the pump head mechanism comprises a pump head body and a pump core; the pump head body penetrates through one side wall of the grease storage cavity; an oil duct A is arranged on the pump head body, one end of the oil duct A is communicated with the grease outlet, and the other end of the oil duct A is communicated with the grease storage cavity; the pump core is sleeved on the pump head body in a sliding mode, and the oil in the oil storage cavity is pumped out of the oil channel A through reciprocating motion of the pump core;

the cam disc is arranged in the grease storage cavity; the cam disc is provided with a ring groove along the circumferential direction; one end of the pump core is arranged in the ring groove; an output shaft of the driving mechanism is connected with the cam disc, and the driving mechanism and the cam disc drive the pump core to reciprocate linearly.

Preferably, the pump head body comprises a pump head, a pump sleeve, a valve core and a spring;

the pump head penetrates through one side wall of the grease storage cavity, and the grease outlet is formed in the pump head;

the pump sleeve is sleeved in the pump head, an oil outlet cavity is formed between the pump sleeve and the pump head, and the grease outlet is communicated with the oil outlet cavity;

a through oil duct B is arranged in the pump sleeve, one end of the oil duct B is communicated with the oil outlet cavity, and the other end of the oil duct B is communicated with the grease storage cavity through a hole structure; the pump core is sleeved in the oil duct B in a sliding manner and is positioned at one end far away from the oil outlet cavity;

one end of the valve core is positioned in the oil outlet cavity, and the other end of the valve core is sleeved in the oil duct B in a sliding manner; the two ends of the spring are respectively connected with the inner walls of the valve core and the pump head, and the extension direction of the spring, the sliding direction of the valve core and the sliding direction of the pump core are all horizontal directions;

the oil duct A is arranged on the pump sleeve, one end of the oil duct A is communicated with the oil outlet cavity, the other end of the oil duct A is communicated with the oil duct B, and the oil is pushed into the oil duct A through the pump core.

Use the technical scheme of the utility model, following beneficial effect has:

(1) The utility model discloses a grease pump system which comprises a grease pump, a grease barrel, an energy accumulator and an oil transfer pump; the utility model provides a grease bucket passes through the grease storage chamber and the energy storage ware intercommunication of pipeline with the grease pump, and each part can be arranged according to equipment space wantonly, can solve the limited problem in grease pump installation space, the utility model discloses a compared in prior art, the utility model provides a bucket structure and the oil scraping structure of grease pump upper end can be cancelled to the grease pump system, can further optimize the limited problem of installation and simplify the structure of grease pump, and the utility model discloses a pipeline direct grease storage chamber can realize that the grease lasts to carry as required, has solved artifical frequent oil feeding and has caused the problem that grease pollutes and intensity of labour is big, and the utility model discloses in still through increasing the energy storage ware, increased certain pressure for the oil absorption pump head of grease pump, the grease pump of grease pump can be through certain pressure with the grease send into the pump in, will effectively reduce the empty and the unstable problem of grease pump flow of grease pump suction.

(2) The utility model discloses a stable transport of system's grease can be guaranteed to the check valve, and the quality of carrying the grease can be guaranteed to the filter.

(3) The utility model discloses a relief valve can inject the highest pressure of system, and when pressure was too high, the grease overflow returned in the grease bucket.

(4) The utility model discloses in, cancel level sensor as the remote monitoring means of grease replenishment condition monitoring, use pressure sensor as the substitute means, level sensor fault rate is higher in the grease medium, and the observation of being not convenient for moreover adopts pressure sensor to implement the monitoring means as the liquid level, can reduce equipment fault rate, specifically is: when the oil transfer pump transfers the oil to the oil storage cavity, the oil transfer pump stops working after reaching the set pressure, after the oil pump pumps the oil, the oil in the energy accumulator is gradually released into the oil storage cavity to ensure the internal pressure, and when the pressure is reduced to the set pressure value, the oil transfer pump is started again to ensure the normal operation of the system in a circulating reciprocating mode. On the other hand, the amount of the stored grease in the conventional grease bucket needs to be displayed through a liquid level sensor and the grease supplement amount is controlled through an electromagnetic valve, and an ultrasonic sensor and a laser sensor which are commonly used in the conventional electric grease pump are easily covered by the grease, so that a feedback signal is wrong, and the supplemented grease often overflows from the bucket.

(5) The utility model discloses in, supply the grease in outside grease source to the grease bucket through the oil supplementing pump, the continuation of the fuel feeding work of assurance system goes on.

(6) The utility model provides a grease stores up and holds the chamber and can bear certain pressure, guarantee that grease pump delivery flow is stable under certain pressure, compare in prior art, the utility model discloses in directly cancelled the barrel structure, it directly seals to store up the chamber with the grease of grease pump, make it can bear certain internal pressure, the design is simple easily realized, and among the prior art, at grease pump top installation bucket structure (there is the grease in the barrel structure), the barrel structure communicates to the grease again and stores up the chamber, this kind of structure receives the restriction in space, in-service use receives the restriction, and, current barrel structure is the structure that can not the pressure-bearing, it needs to carry out corresponding design and improvement if the pressure-bearing, difficult realization in the aspect of cost and manufacturing, and the utility model discloses in directly adopt the grease of grease pump to store up the chamber and regard as the pressure-bearing space, because the grease stores up the structure body formation on the chamber for the grease pump, it itself possesses certain bearing capacity, need not too much change and can realize its bearing function, and then can realize that it can keep certain internal pressure and can avoid adopting the problem that the barrel structure installation is limited again.

(7) The utility model provides a grease pump has cancelled the frizing mechanism, has simplified the design of grease pump, and what need explain, the utility model discloses a restricted problem in installation space not only can be solved to the system, corresponding part (if frizing mechanism) can also be cancelled simultaneously, and practicality and flexibility have all obtained the promotion.

(8) The utility model discloses the current scheme that adopts the hydro-cylinder as grease conveying mechanism of contrast, the hydro-cylinder does not possess the pump sending grease ability, need provide in addition the power supply side can move, the utility model discloses well grease pump is for structural improvement (cancellation former electronic grease pump frizing version, components and parts such as cancellation former electronic grease pump level sensor) and combine components and parts such as pressure sensor, energy storage ware in this system, reaches the purpose that improves grease pump reliability, stability at original electronic grease pump.

The present invention has other objects, features and advantages in addition to those described above. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In the drawings:

FIG. 1 is a schematic diagram of a grease pump system according to an embodiment;

FIG. 2 is a schematic diagram of the grease pump of FIG. 1;

FIG. 3 is a schematic view of the pump head mechanism of FIG. 2, P ₁ Indicating the flow direction of the grease;

FIG. 4 is a schematic view showing the cooperation of the cam plate and the pump core in the present embodiment, in which the linear arrow indicates the reciprocating direction of the pump core and the rotational arrow indicates the eccentric rotation direction of the cam plate;

wherein, 1, a grease pump; 1.1, a grease storage cavity; 1.2, a pump body; 1.3, a pump head mechanism; 1.3a and an oil duct A;1.3B and an oil duct B;1.3c, an oil outlet cavity; 1.3d, pore structure; 1.31, pump core; 1.32, pump head; 1.33, pump sleeve; 1.34, a valve core; 1.35, a spring; 1.4, a cam disc; 1.41, a ring groove; 1.5, a driving mechanism; 1.51, an output shaft; 2. a grease barrel; 3. an accumulator; 4. an oil transfer pump; 5. a one-way valve; 6. a filter; 7. a safety valve; 8. a pressure sensor; 9. an oil replenishing pump; 10. the points where lubrication is required externally.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Example (b):

the embodiment discloses a grease pump system, which includes a grease pump 1, a grease bucket 2, an energy accumulator 3, an oil delivery pump 4, a check valve 5, a filter 6, a safety valve 7, a pressure sensor 8 and an oil replenishment pump 9, as shown in fig. 1 to 4, as follows:

it holds chamber 1.1 to be provided with grease storage on grease pump 1 (electronic grease pump), and grease storage in this embodiment holds chamber 1.1 and sets up to a airtight chamber that can bear certain pressure, and the preferred grease storage holds chamber 1.1 and sets up to the airtight space that can bear two at least atmospheric pressure (specific bearing capacity can design according to actual demand) in this embodiment, and grease storage holds chamber 1.1 and is the pressure-bearing structure, can be convenient for utilize system pressure to guarantee the stability of pump sending flow, avoids the pump head to inhale the circumstances such as empty. The grease outlet on the grease pump 1 is communicated to the point 10 which needs to be lubricated externally.

As shown in fig. 1, lubricating grease is arranged in the grease barrel 2, and an outlet of the grease barrel 2 is communicated with the inside of the grease storage cavity 1.1 through a pipeline; the pipeline is provided with an oil transfer pump 4;

the energy accumulator 3 is communicated with the pipeline, the oil transfer pump 4 is positioned between the energy accumulator 3 and the outlet of the grease barrel 2, and grease in the grease barrel 2 is transferred to the energy accumulator 3 and the grease storage cavity 1.1 through the oil transfer pump 4;

the check valve 5 is arranged on the pipeline, the check valve 5 is positioned between the energy accumulator 3 and the oil transfer pump 4, and the allowed flow direction of the check valve 5 (namely the allowed flow direction of the grease) is from the oil transfer pump 4 to the energy accumulator 3;

the filter 6 is arranged between the one-way valve 5 and the oil delivery pump 4, and the filter 6 is used for filtering impurities in the grease;

one end of the safety valve 7 is communicated with a pipeline (particularly communicated between the filter 6 and the oil transfer pump 4), the other end of the safety valve 7 is communicated with the grease barrel 2, and the safety valve 7 is used for limiting the highest pressure of the system;

the pressure sensor 8 is arranged on the grease pump 1, the pressure sensor 8 is used for monitoring the internal pressure (namely back pressure) of the grease storage cavity 1.1, and the pressure sensor 8 is connected with the oil transfer pump 4 through the existing control structure and can control the work of the oil transfer pump 4 according to the internal pressure of the grease storage cavity 1.1;

the export of oil supply pump 9 and grease bucket 2 intercommunication, the import and the outside grease source intercommunication of oil supply pump 9 can supply outside grease source to in the grease bucket 2.

The concrete structure of the grease pump 1 in this embodiment is as follows, as shown in fig. 1 to 3:

the grease pump 1 comprises a pump body 1.2, a pump head mechanism 1.3, a cam disc 1.4 and a driving mechanism 1.5:

grease stores up and holds the setting of chamber 1.1 in the top of pump body 1.2, is provided with a plurality of seal structure on the pump body 1.2, and seal structure can guarantee that grease stores up the inside that holds chamber 1.1 and has good sealing performance, can guarantee promptly that inside has pressure after, the grease can not reveal away from the point location of revealing.

The pump head mechanism 1.3 comprises a pump head body and a pump core 1.31; the pump head body horizontally penetrates through one side wall of the grease storage cavity 1.1, the pump core 1.31 is positioned in the grease storage cavity 1.1, and the pump core 1.31 is slidably sleeved in the pump head body (specifically in the pump sleeve 1.33);

the pump head body comprises a pump head 1.32, a pump sleeve 1.33, a valve core 1.34 and a spring 1.35, as shown in fig. 3;

the pump head 1.32 horizontally penetrates through one side wall of the grease storage cavity 1.1; the grease outlet is arranged on the pump head 1.32;

the pump sleeve 1.33 is a hollow cylindrical structure, and an axially through oil passage B is formed in the hollow part inside the pump sleeve; the pump sleeve 1.33 is horizontally sleeved in the pump head 1.32, an oil outlet cavity (marked as 1.3 c) is formed between the pump sleeve 1.33 and the interior of the pump head 1.32, and the grease outlet is communicated with the oil outlet cavity 1.3 c; the pump sleeve 1.33 is also provided with an oil passage A (the label is 1.3 a), one end of the oil passage A is communicated with the oil outlet cavity, and the other end of the oil passage A is communicated with an oil passage B (the label is 1.3B);

one end of the pump core 1.31 is sleeved in the oil passage B, and the pump core 1.31 is specifically located at one end far away from the pump head 1.32, that is, the pump head 1.32 and the pump core 1.31 are respectively located at two axial sides of the pump sleeve 1.33; one end of the oil passage B, which is far away from the pump head 1.32, is provided with a hole structure (the label is 1.3 d), grease can enter the oil passage B through the hole structure 1.3d and enter the oil passage a from the oil passage B (namely enter the oil passage a from the opening at the other end of the oil passage a), and the direction of the grease is as shown in P in fig. 3 ₁ As shown, the grease in the hole structure 1.3d is pushed into the oil passage B by the horizontal linear motion of the pump core 1.31;

one end of the valve core 1.34 is coaxially sleeved in the oil passage B (the label is 1.3B), the other end of the valve core 1.34 is positioned in the oil outlet cavity 1.3c, when the pump head mechanism 1.3 is in an oil-out state (namely the spring 1.35 is not compressed), one end of the valve core 1.34 positioned in the oil passage B can cover and close the opening at the other end of the oil passage A, and when the valve core 1.34 moves away from the central position of the oil storage cavity along the axial direction, the opening at the other end of the oil passage A is opened, grease enters the oil outlet cavity from the oil passage A, and the volume space in the oil outlet cavity is reduced because the valve core 1.34 slides into the oil outlet cavity 1.3c, so that the grease in the oil outlet cavity is pumped out from the grease outlet;

the spring 1.35 is located in the oil outlet cavity, two ends of the spring 1.35 are respectively connected with the inner wall of the pump head 1.32 and the valve core 1.34, wherein the expansion direction of the spring 1.35, the movement direction (axial direction) of the valve core 1.34, the movement direction of the pump core 1.31 and the axial direction of the pump sleeve 1.33 are all horizontal straight line directions and are all on the same straight line.

Wherein, pump core 1.31 can horizontal reciprocating motion, and the principle is: as shown in fig. 1 and 4, an output shaft 1.51 of a driving mechanism 1.5 (motor) is vertically arranged, and the upper end of the output shaft 1.51 is connected with a cam disc 1.4 arranged in a grease storage cavity 1.1, so that the cam disc 1.4 can be driven to do eccentric motion (rotation) around the axis of the output shaft 1.51; the cam disc 1.4 is provided with a ring groove 1.41 along the circumferential direction, the other end of the pump core 1.31 is arranged in the ring groove 1.41, when the cam disc 1.4 moves, the other end of the pump core 1.31 and the ring groove 1.41 can not be separated, and the other end of the pump core 1.31 is clamped in the ring groove 1.41, when the cam disc 1.4 rotates, the other end of the pump core 1.31 and the inner wall of the ring groove 1.41 can generate relative circumferential sliding, and the other end of the pump core 1.31 and the ring groove 1.41 can not generate relative radial movement, therefore, when the cam disc 1.4 rotates, the eccentric movement of the cam disc 1.4 can drive the pump core 1.31 to reciprocate linearly in the horizontal direction, and the pump core 1.31 can also horizontally reciprocate in the oil passage B.

Wherein, the oil passage B (circular in shape) is in clearance fit with one end of the valve core 1.34 (cylindrical in shape); the oil passage B is in clearance fit with the pump core 1.31 (cylindrical in shape).

The grease pump 1 of the present embodiment operates as follows:

as shown in fig. 2 to 4, the output shaft 1.51 of the driving mechanism 1.5 (motor) drives the cam disc 1.4 to make a horizontal eccentric motion, so that the cam disc 1.4 drives the pump core 1.31 to make a horizontal reciprocating motion, when the pump core 1.31 slides in the oil passage B (labeled as 1.3B) towards the valve core 1.34, grease in the grease storage cavity 1.1 is pushed into the oil passage B from the hole structure 1.3d, as the pump core 1.31 pushes grease towards the valve core 1.34, the valve core 1.34 is pushed away along the axial direction, the opening of the oil passage a (labeled as 1.3 a) is opened, and as the pump core 1.31 is pushed, grease is pushed into the oil passage a and enters the oil outlet cavity 1.3c from the oil passage a, on the other hand, as the valve core 1.34 is continuously pushed away from the central position of the grease storage cavity, the structure of the valve core 1.34 entering the oil outlet cavity 1.3c is gradually increased, so that the oil outlet cavity 1.3c is covered by the oil outlet, and the grease outlet is pushed back into the oil outlet cavity 1.3c again by the lower oil spring, when the oil outlet 1.34 is pushed, the grease is pushed again, and the oil outlet of the valve core 1.1.1 is returned, and the grease is returned again, and the grease is carried by the lower oil outlet spring, and the oil outlet spring, so that the grease is returned.

The working principle of the grease pump system in this embodiment is as follows, as shown in fig. 1:

the oil transfer pump 4 sends the grease pump 1 in the grease barrel 2 into the grease storage cavity 1.1 of the grease pump 1 and the energy accumulator 3, the pressure sensor 8 above the grease pump 1 monitors the pressure in the grease storage cavity 1.1, when the set pressure is reached, the pressure sensor 8 transmits a signal to the oil transfer pump 4, and the oil transfer pump 4 is controlled to stop oil transfer work;

the driving mechanism 1.5 of the grease pump 1 works to pump grease in the grease storage cavity 1.1 to each point position needing lubrication through a grease outlet (the pumping principle of the grease pump 1 is described above), and in the process, the grease in the energy accumulator 3 is gradually released to ensure that a certain pressure is kept in the grease storage cavity 1.1, so that the output flow of the grease pump 1 is stable;

when the pressure sensor 8 monitors that the pressure in the grease storage cavity 1.1 is below the threshold value, the signal is transmitted to the oil transfer pump 4 again, the oil transfer pump 4 transfers grease to the grease storage cavity 1.1 and the energy accumulator 3 again, and the circulation is repeated to ensure the normal operation of the system;

when the grease in the grease bucket 2 is insufficient, the external grease is supplemented into the grease bucket 2 through the oil supplementing pump 9.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grease pump system is characterized by comprising a grease pump (1), a grease barrel (2), an energy accumulator (3) and an oil transfer pump (4);

the grease pump (1) is provided with a grease storage cavity (1.1); the outlet of the grease barrel (2) is communicated with the inside of the grease storage cavity (1.1) through a pipeline; the energy accumulator (3) is communicated with the pipeline;

the oil transfer pump (4) is arranged on the pipeline, and the oil transfer pump (4) is used for transferring the grease in the grease barrel (2) to the grease storage cavity (1.1) and the energy accumulator (3); and a grease outlet of the grease pump (1) is communicated with a point (10) which needs to be lubricated from the outside.

2. A grease pump system according to claim 1, characterized by further comprising a one-way valve (5) arranged on the conduit; the check valve (5) is located between the energy accumulator (3) and the oil transfer pump (4), and the flow-allowing direction of the check valve (5) is from the oil transfer pump (4) to the energy accumulator (3).

3. A grease pump system according to claim 2, characterized in that it further comprises a filter (6) arranged on the pipe, the filter (6) being located between the non-return valve (5) and the oil feed pump (4).

4. A grease pump system according to claim 1, characterized by further comprising a safety valve (7); the inlet of the safety valve (7) is communicated with the pipeline, and the outlet of the safety valve (7) is communicated with the grease barrel (2).

5. A grease pump system according to any of the claims 1-4, characterized in that it further comprises a pressure sensor (8) for monitoring the pressure inside the grease reservoir chamber (1.1).

6. A grease pump system according to claim 1, characterized by further comprising a supplementary oil pump (9); the inlet of the oil supplementing pump (9) is communicated with an external grease source, and the outlet of the oil supplementing pump (9) is communicated with the grease barrel (2).

7. A grease pump system according to claim 1, characterized in that the grease reservoir volume (1.1) of the grease pump is enclosed.

8. A grease pump system according to claim 1, characterized in that the grease pump (1) comprises a pump body (1.2), a pump head mechanism (1.3), a cam disc (1.4) and a drive mechanism (1.5);

the grease storage cavity (1.1) is arranged on the pump body (1.2);

the pump head mechanism (1.3) comprises a pump head body and a pump core (1.31); the pump head body penetrates through one side wall of the grease storage cavity (1.1); an oil duct A (1.3 a) is arranged on the pump head body, one end of the oil duct A (1.3 a) is communicated with the grease outlet, and the other end of the oil duct A is communicated with the grease storage cavity (1.1); the pump core (1.31) is sleeved on the pump head body in a sliding mode, and grease in the grease storage cavity (1.1) is pumped out from the oil duct A (1.3 a) through reciprocating motion of the pump core (1.31);

the cam disc (1.4) is arranged in the grease storage cavity (1.1); the cam disc (1.4) is provided with a ring groove (1.41) along the circumferential direction; one end of the pump core (1.31) is arranged in the ring groove (1.41); an output shaft (1.51) of the driving mechanism (1.5) is connected with the cam disc (1.4), and the pump core (1.31) is driven to do linear reciprocating motion through the driving mechanism (1.5) and the cam disc (1.4).

9. A grease pump system according to claim 8, characterized in that the pump head body comprises a pump head (1.32), a pump sleeve (1.33), a valve spool (1.34) and a spring (1.35);

the pump head (1.32) penetrates through one side wall of the grease storage cavity (1.1), and the grease outlet is formed in the pump head (1.32);

the pump sleeve (1.33) is sleeved in the pump head (1.32), an oil outlet cavity (1.3 c) is formed between the pump sleeve (1.33) and the pump head (1.32), and the grease outlet is communicated with the oil outlet cavity (1.3 c);

a through oil channel B (1.3B) is arranged in the pump sleeve (1.33), one end of the oil channel B (1.3B) is communicated with the oil outlet cavity (1.3 c), and the other end of the oil channel B (1.3B) is communicated with the grease storage cavity (1.1) through a hole structure (1.3 d); the pump core (1.31) is sleeved in the oil passage B (1.3B) in a sliding manner and is positioned at one end far away from the oil outlet cavity (1.3 c);

one end of the valve core (1.34) is positioned in the oil outlet cavity (1.3 c), and the other end is sleeved in the oil passage B (1.3B) in a sliding manner; two ends of the spring (1.35) are respectively connected with the inner walls of the valve core (1.34) and the pump head (1.32), and the extension direction of the spring, the sliding direction of the valve core and the sliding direction of the pump core are all horizontal directions;

the oil channel A (1.3 a) is arranged on the pump sleeve (1.33), one end of the oil channel A (1.3 a) is communicated with the oil outlet cavity (1.3 c), the other end of the oil channel A is communicated with the oil channel B (1.3B), and grease is pushed into the oil channel A (1.3 a) through the pump core (1.31).