CN216307391U

CN216307391U - Grease lubricating pump

Info

Publication number: CN216307391U
Application number: CN202123236839.XU
Authority: CN
Inventors: 金登伟
Original assignee: Zhejiang Hurun Intelligent Equipment Co ltd
Current assignee: Zhejiang Hurun Intelligent Equipment Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-15
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a grease lubricating pump, and belongs to the technical field of lubricating pumps. It has solved the oily inefficiency scheduling problem of current grease lubrication pump. The oil lubricating pump comprises a motor, a main body, a connector, a base and an oil bag, wherein the main body is fixedly connected with a gear pump head positioned in an oil cavity, an output shaft of the motor penetrates through the main body and is connected with the gear pump head, an oil inlet hole of the gear pump head is communicated with the oil cavity, an oil outlet hole of the gear pump head is communicated with an oil passage, the main body is fixedly connected with a pressure release valve extending to the oil cavity, the pressure release valve is provided with an oil inlet hole communicated with the oil passage, an oil outlet hole communicated with the oil outlet and a pressure relief hole communicated with the oil cavity, a spring and a plugging member are arranged in the pressure release valve, the spring provides elasticity to enable the plugging member to keep the trend of plugging in the oil inlet hole, when the plugging member is plugged in the oil inlet hole, the oil outlet hole is communicated with the pressure relief hole, and when the plugging member is plugged in the pressure relief hole, the oil inlet hole is communicated with the oil outlet hole. The utility model has the advantages of high oil outlet efficiency, good adaptability and the like.

Description

Grease lubricating pump

Technical Field

The utility model belongs to the technical field of lubricating pumps, and particularly relates to a grease lubricating pump.

Background

The intelligent full-automatic quantitative oiling lubrication is the best choice of the lubrication mode in all mechanical equipment (truss mechanical arm, numerical control machine tool, machining center and the like), and the grease lubrication pump is a key component.

At present, a grease lubricating pump in Japan continuously rotates forwards and backwards through a motor, a piston rod reciprocates, grease is sucked in and pushed into a one-way valve, and the grease flows out from an oil outlet; a grease lubricating pump on the domestic market drives a cam to rotate through a motor, the cam drives a piston rod to reciprocate through a connecting shaft, grease is sucked in and pushed into a one-way valve, and the grease flows out of an oil outlet.

Because the existing grease lubricating pump has the piston rod reciprocating motion, intermittent oil production can be caused, the oil production efficiency is not ideal enough, and the check valve is arranged in the pump body, so that the pressure release valve cannot be designed and installed in the pump body, and the existing grease lubricating pump is not suitable for a high-end quantitative distributor and cannot meet the use requirements of high-precision quantification, environmental protection and energy conservation.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a grease lubrication pump with high oil outlet efficiency and good adaptability.

The purpose of the utility model can be realized by the following technical scheme: a grease lubricating pump comprises a motor, a main body, a connector, a base and a grease pocket for storing grease, wherein the grease pocket is fixedly connected with the base, the base is provided with a through hole communicated with the grease pocket, the base is fixedly connected with the connector, the connector is provided with an inlet hole communicated with the through hole, the interior of the connector is an oil pocket and is fixedly connected with one side of the main body, the motor is fixedly connected with the other side of the main body, the main body is provided with an oil outlet, a grease channel is arranged in the main body, the main body is fixedly connected with a gear pump head positioned in the oil pocket, an output shaft of the motor penetrates through the main body and is connected with the gear pump head, an oil inlet hole of the gear pump head is communicated with the oil pocket and an oil outlet hole of the gear pump head is communicated with the grease channel, the main body is fixedly connected with a pressure release valve extending to the oil pocket, and the pressure release valve is provided with an oil inlet hole communicated with the grease channel, The oil-grease discharging device comprises a grease discharging hole communicated with an oil outlet and a pressure relief hole communicated with an oil cavity, a spring and a plugging piece are arranged in the pressure relief valve, the spring provides elastic force to enable the plugging piece to keep the tendency of plugging the grease discharging hole, when the plugging piece plugs the grease discharging hole, the grease discharging hole is communicated with the pressure relief hole, and when the plugging piece plugs the pressure relief hole, the grease discharging hole is communicated with the grease discharging hole.

In foretell grease lubrication pump, the gear pump head include the pump body, driving gear and driven gear, the driving gear mesh outside driven gear, the inlet port locate the pump body outside and be located the meshing department of driving gear and driven gear, the oil outlet locate the pump body inboard, the pivot of driving gear wear out the pump body and link firmly mutually through the output shaft of connecting axle sleeve and motor.

As another kind of condition, in foretell a grease lubricant pump, the gear pump head include the pump body, driving gear and driven gear, driven gear have the tooth for annular and inner wall, driving gear inner gearing in driven gear, the pump body is equipped with the crescent baffle that is located between driving gear and the driven gear, inlet port and oil outlet are located the both sides of driving gear and driven gear meshing department, the pivot of driving gear is worn out the pump body and is linked firmly mutually through the output shaft of connecting axle sleeve and motor. The gear pump head is the internal gear pump head, and the output shaft of motor passes through the axle sleeve and drives the pivot rotation, rotates along with the pivot with the integrative driving gear of pivot to it is rotatory to drive driven gear, realizes the oil absorption action.

In foretell grease lubricating pump, the relief valve include the valve body and with valve body threaded connection's valve cap, oil feed fat hole be located valve body tip and go out the fat hole and be located the valve body lateral part, release hole axial run through the valve cap, valve cap inner the step that supplies the spring housing to establish has, the shutoff piece including being cylindrical plug, the plug have radial evagination and contradict in the edge of turning over of valve body inner wall, the edge of turning over be the umbrella-type and can fold in to the spring side, the spring housing on the plug and turned over the edge and block.

In foretell grease lubrication pump, the plug keep away from the tip cover of spring and be equipped with the piece of leaning on, valve body and valve cap between be equipped with the sealing washer.

In the grease lubrication pump, the grease pocket is sleeved with the grease pocket cover, the grease pocket cover is internally provided with the pressure spring and the piston, and the pressure spring provides elasticity to enable the piston to keep the trend of pressing down on the grease pocket.

Compared with the prior art, the grease lubricating pump has compact structure, can realize continuous oil outlet, has high oil outlet efficiency, has the function of a pressure release valve, is adapted to a high-end quantitative distributor, and is used in a quantitative, environment-friendly and energy-saving centralized lubricating system.

Drawings

Fig. 1 is a schematic sectional view of the grease lubrication pump.

Fig. 2 is a schematic structural view of a gear pump head in the grease lubrication pump.

Fig. 3 is a schematic sectional structural view of a pressure release valve in the grease lubrication pump.

In the figure, 1, a motor; 2. a main body; 21. an oil outlet; 22. a grease passage; 3. a linker; 31. an access hole; 4. a base; 41. a through hole; 5. an oil pocket; 6. a gear pump head; 61. an oil inlet hole; 62. an oil outlet hole; 63. a pump body; 64. a driving gear; 65. a driven gear; 7. a pressure relief valve; 71. a grease inlet hole; 72. a grease outlet hole; 73. a pressure relief hole; 74. a spring; 75. a valve body; 76. a bonnet; 77. a rubber plug; 771. turning over edges; 78. a leaning block; 79. a seal ring; 8. a coupling sleeve; 9. covering the oil bag; 10. a pressure spring; 11. a piston.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the grease lubrication pump includes a motor 1, a main body 2, a connector 3, a base 4 and a grease pocket 5 for storing grease, the grease pocket 5 is fixedly connected with the base 4, the base 4 has a through hole 41 communicated with the grease pocket 5, the base 4 is fixedly connected with the connector 3, the connector 3 has an inlet hole 31 communicated with the through hole 41, the connector 3 is internally provided with an oil pocket and the connector 3 is fixedly connected with one side of the main body 2, the motor 1 is fixedly connected with the other side of the main body 2, the main body 2 is provided with an oil outlet 21 and is provided with a grease passage 22 inside the main body 2, the main body 2 is fixedly connected with a gear pump head 6 positioned in the oil pocket, an output shaft of the motor 1 passes through the main body 2 and is connected with the gear pump head 6, an oil inlet 61 of the gear pump head 6 is communicated with the oil pocket and an oil outlet 62 of the gear pump head 6 is communicated with the grease passage 22, the main body 2 is fixedly connected with a pressure release valve 7 extending to the oil pocket, the pressure release valve 7 is provided with an oil inlet hole 71 communicated with the oil passage 22, an oil outlet hole 72 communicated with the oil outlet 21 and a pressure relief hole 73 communicated with the oil cavity, a spring 74 and a plugging member are arranged in the pressure release valve 7, the spring 74 provides elastic force to enable the plugging member to keep the tendency of plugging the oil inlet hole 71, when the plugging member plugs the oil inlet hole 71, the oil outlet hole 72 is communicated with the pressure relief hole 73, and when the plugging member plugs the pressure relief hole 73, the oil inlet hole 71 is communicated with the oil outlet hole 72.

The grease in the grease pocket 5 of the grease lubricating pump passes through the through hole 41 and the inlet hole 31 and then enters the oil cavity; when the grease lubrication pump is used, the output shaft of the motor 1 rotates to drive the gear pump head 6 to work, grease in an oil cavity is sucked into the oil inlet hole 61 of the gear pump head 6, then enters the grease channel 22 from the oil outlet hole 62 of the gear pump head 6, the grease continuously entering the grease channel 22 overcomes the elasticity of the spring 74, the plugging piece is pushed to be away from the grease inlet hole 71, the plugging piece is plugged in the pressure relief hole 73, the grease in the grease channel 22 enters from the grease inlet hole 71 and then flows to the oil outlet 21 from the grease outlet hole 72 to discharge oil, and the gear pump head 6 is driven by the motor 1 to absorb oil, so that the reciprocating motion of the conventional piston rod is omitted, continuous oil discharge is realized, and the oil discharge efficiency is high; when the grease lubrication pump stops working, the motor 1 does not work, the blocking piece is blocked in the grease inlet hole 71 due to the elastic force of the spring 74, the grease outlet hole 72 is communicated with the pressure relief hole 73, and grease flows to an oil cavity from the oil outlet 21, the grease outlet hole 72 and the pressure relief hole 73 to be quickly relieved.

In further detail, the gear pump head 6 in this embodiment includes a pump body 63, a driving gear 64 and a driven gear 65, the driving gear 64 is externally engaged with the driven gear 65, the oil inlet 61 is disposed on the outer side of the pump body 63 and located at the engagement position of the driving gear 64 and the driven gear 65, the oil outlet 62 is disposed on the inner side of the pump body 63, and the rotating shaft of the driving gear 64 penetrates through the pump body 63 and is fixedly connected with the output shaft of the motor 1 through the coupling sleeve 8. The gear pump head 6 is an external gear pump head, the output shaft of the motor 1 drives the rotating shaft to rotate through the connecting shaft sleeve 8, and the driving gear 64 integrated with the rotating shaft rotates along with the rotating shaft, so that the driven gear 65 is driven to rotate, and oil absorption action is realized.

As shown in fig. 3, the pressure relief valve 7 includes a valve body 75 and a valve cap 76 in threaded connection with the valve body 75, the oil inlet hole 71 is located at the end of the valve body 75, the oil outlet hole 72 is located at the side of the valve body 75, the pressure relief hole 73 axially penetrates through the valve cap 76, a step for the spring 74 to be sleeved on is provided at the inner end of the valve cap 76, the plugging member includes a cylindrical rubber plug 77, the rubber plug 77 has a flange 771 which radially protrudes outward and abuts against the inner wall of the valve body 75, the flange 771 is umbrella-shaped and can be folded toward the spring 74, the spring 74 is sleeved on the rubber plug 77 and is blocked by the flange 771, an abutting block 78 is sleeved on the end of the rubber plug 77 away from the spring 74, a sealing ring 79 is provided between the valve body 75 and the valve cap 76, the abutting block 78 plays a guiding and limiting role, so that the rubber plug 77 can be displaced smoothly, the rubber plug 77 is prevented from being worn, the service life is prolonged, and the sealing performance between the valve body 75 and the valve cap 76 is good. After the grease enters from the grease inlet hole 71, the grease overcomes the elastic force of the spring 74 to push the abutting block 78 and the rubber plug 77 away, the rubber plug 77 is sealed in the pressure relief hole 73, the grease further impacts the flange 771 to enable the flange to be folded towards the spring 74 side, and the grease enters the grease outlet hole 72 smoothly; when the pressure relief valve stops working, the elastic force of the spring 74 enables the rubber plug 77 and the abutting block 78 to displace towards the grease inlet hole 71, the abutting block 78 blocks the grease inlet hole 71, the turnup edge 771 expands under the elastic action of the turnup edge to be sealed on the inner wall of the valve body 75, the sealing performance is guaranteed, the grease outlet hole 72 is communicated with the pressure relief hole 73, grease can only flow to the pressure relief hole 73 from the grease outlet hole 72, and pressure relief is smooth.

The oil pocket 5 is externally sleeved with an oil pocket cover 9 connected with the base 4, a pressure spring 10 and a piston 11 are arranged in the oil pocket cover 9, the pressure spring 10 provides elasticity to enable the piston 11 to keep the trend of pressing down on the oil pocket 5, the oil pocket cover 9 plays a role in protection, and the arrangement of the pressure spring 10 and the piston 11 enables oil outlet of the oil pocket 5 to be smooth.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A grease lubricating pump comprises a motor (1), a main body (2), a connector (3), a base (4) and a grease pocket (5) for storing grease, wherein the grease pocket (5) is fixedly connected with the base (4), the base (4) is provided with a through hole (41) communicated with the grease pocket (5), the base (4) is fixedly connected with the connector (3), the connector (3) is provided with an inlet hole (31) communicated with the through hole (41), the connector (3) is internally provided with an oil chamber, the connector (3) is fixedly connected with one side of the main body (2), the motor (1) is fixedly connected with the other side of the main body (2), the main body (2) is provided with an oil outlet (21) and a grease channel (22) is arranged in the main body (2), the main body (2) is fixedly connected with a gear pump head (6) positioned in the oil chamber, an output shaft of the motor (1) passes through the main body (2) and is connected with the gear pump head (6), an oil inlet hole (61) of the gear pump head (6) is communicated with the oil cavity, an oil outlet hole (62) of the gear pump head (6) is communicated with the grease channel (22), the main body (2) is fixedly connected with a pressure release valve (7) extending to the oil cavity, the pressure release valve (7) is provided with an oil inlet hole (71) communicated with the oil passage (22), an oil outlet hole (72) communicated with the oil outlet (21) and a pressure release hole (73) communicated with the oil cavity, a spring (74) and a plugging piece are arranged in the pressure release valve (7), the spring (74) provides elastic force to enable the plugging piece to keep the trend of plugging the oil inlet hole (71), when the plugging piece is plugged in the grease inlet hole (71), the grease outlet hole (72) is communicated with the pressure relief hole (73), when the plugging piece is plugged in the pressure relief hole (73), the oil inlet hole (71) is communicated with the oil outlet hole (72).

2. The grease lubrication pump according to claim 1, wherein the gear pump head (6) comprises a pump body (63), a driving gear (64) and a driven gear (65), the driving gear (64) is externally meshed with the driven gear (65), the oil inlet (61) is arranged on the outer side of the pump body (63) and is positioned at the meshing position of the driving gear (64) and the driven gear (65), the oil outlet (62) is arranged on the inner side of the pump body (63), and the rotating shaft of the driving gear (64) penetrates out of the pump body (63) and is fixedly connected with the output shaft of the motor (1) through the connecting shaft sleeve (8).

3. The grease lubrication pump according to claim 1, wherein the gear pump head (6) comprises a pump body (63), a driving gear (64) and a driven gear (65), the driven gear (65) is annular, teeth are arranged on the inner wall of the driven gear (65), the driving gear (64) is internally meshed with the driven gear (65), the pump body (63) is provided with a crescent partition plate located between the driving gear (64) and the driven gear (65), the oil inlet hole (61) and the oil outlet hole (62) are located on two sides of the meshing position of the driving gear (64) and the driven gear (65), and a rotating shaft of the driving gear (64) penetrates through the pump body (63) and is fixedly connected with an output shaft of the motor (1) through a connecting shaft sleeve (8).

4. A grease lubrication pump according to claim 1, 2 or 3, characterized in that the pressure relief valve (7) comprises a valve body (75) and a valve cap (76) in threaded connection with the valve body (75), the grease inlet hole (71) is located at the end of the valve body (75) and the grease outlet hole (72) is located at the side of the valve body (75), the pressure relief hole (73) axially penetrates through the valve cap (76), the inner end of the valve cap (76) is provided with a step for the spring (74) to be sleeved, the blocking member comprises a cylindrical rubber plug (77), the rubber plug (77) is provided with a flange (771) protruding radially outwards and abutting against the inner wall of the valve body (75), the flange (771) is umbrella-shaped and can be folded towards the spring (74), and the spring (74) is sleeved on the rubber plug (77) and blocked by the flange (771).

5. A grease lubrication pump according to claim 4, characterized in that the end of the rubber plug (77) remote from the spring (74) is provided with an abutment block (78), and a sealing ring (79) is arranged between the valve body (75) and the valve cap (76).

6. A grease lubrication pump according to claim 5, characterized in that the oil pocket (5) is covered by an oil pocket cover (9), a compression spring (10) and a piston (11) are arranged in the oil pocket cover (9), and the compression spring (10) provides elasticity to make the piston (11) keep the tendency of pressing down on the oil pocket (5).