CN211598973U

CN211598973U - Lubricating pump for hydraulic equipment

Info

Publication number: CN211598973U
Application number: CN201922405252.3U
Authority: CN
Inventors: 赵本国; 吴永
Original assignee: Yuhuan Kaitian Hydraulic Lubrication Equipment Co ltd
Current assignee: Yuhuan Kaitian Hydraulic Lubrication Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-29
Anticipated expiration: 2029-12-27

Abstract

The utility model belongs to the technical field of hydraulic equipment accessories, especially, be a lubricating pump for hydraulic equipment, including valve body, pump back lid, pump protecgulum, pump component check valve core, check valve oil-out joint and piston case, be provided with pump protecgulum and pump back lid through mounting screw on the valve body front and back end respectively, valve body internally mounted has piston case, and the cover is equipped with the piston bush on the piston case, is provided with the oil absorption mouth that is linked together with the piston bush on the valve body, is connected with preceding spring holder on the piston case top, installs the back spring holder on the pump protecgulum front end. The utility model adopts the design of a double one-way valve, and can automatically reset each time of circulation, and a plurality of oil suction ports are added; the working pressure is high, and lubricating grease can be directly supplied to a remote lubricating point, so that the requirement of multiple lubricating points of large machinery is met; the oil outlet device has the advantages that the operation is reliable, the normal oil outlet of the oil outlet is ensured, the oil outlet amount of each circulation is ensured to be the same, the oil can be accurately supplied to each lubricating point in a fixed amount, and the oil amount can be adjusted according to the circulation output amount.

Description

Lubricating pump for hydraulic equipment

Technical Field

The utility model belongs to the technical field of hydraulic equipment accessories, concretely relates to lubricating pump for hydraulic equipment.

Background

The lubricating mechanism of the traditional large hydraulic machine is large in size, complex in transmission mechanism and high in manufacturing cost, lubricating oil quantity is difficult to adjust, the lubricating mechanism cannot adapt to automatic adaptive adjustment of working load, and the phenomenon that lubricating oil is wasted or the lubricating effect is poor can be caused. Or because the hydraulic equipment is difficult to arrange, high in manufacturing cost and the like, the lubricating device is not arranged, the service life of the hydraulic equipment is short due to the reasons, the hydraulic connecting piece needs to be frequently replaced, the operation is unreliable, the stability is poor, and the low efficiency is brought to the work.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a lubricating pump for hydraulic equipment, which adopts the design of a double one-way valve, can automatically reset in each circulation and simultaneously increases a plurality of oil suction ports; the design of a plurality of oil suction ports enables the oil to be fully sucked in the piston sleeve every time of circulation, so that the oil outlet is ensured to normally discharge oil, meanwhile, the automatic resetting function of the one-way valve ensures that the oil discharge amount of each circulation is the same, and the oil can be accurately supplied to each lubricating point in a fixed amount.

In order to achieve the above object, the utility model provides a following technical scheme: a lubricating pump for hydraulic equipment comprises a valve body, a pump rear cover, a pump front cover, a pump element one-way valve core, a one-way valve oil outlet joint and a piston valve core, wherein the pump front cover and the pump rear cover are respectively arranged at the front end and the rear end of the valve body through screws; an oil outlet pipeline is arranged on the outer side of the piston valve core in the valve body, a first oil outlet communicated with the oil outlet pipeline is formed between the pump element one-way valve core and the pump rear cover in the valve body, and a one-way valve oil outlet joint communicated with the oil outlet pipeline is arranged on the outer wall of the valve body.

Preferably, a one-way valve is installed below the inner portion of the oil outlet joint of the one-way valve, an oil outlet joint is installed above the inner portion of the oil outlet joint of the one-way valve, and an oil outlet spring is connected between the one-way valve and the oil outlet joint.

Preferably, a ball expansion type high-pressure plug is arranged at the joint of the oil outlet pipeline, the valve body and the pump rear cover.

Preferably, an O-shaped ring is arranged at the joint of the pump rear cover and the valve body.

Preferably, a Y-shaped sealing ring is arranged at the joint of the piston sleeve and the left end of the valve body.

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

1. the design of a double one-way valve is adopted, each circulation can be automatically reset, and a plurality of oil suction ports are added;

2. the working pressure is high: the maximum pressure of oiling is 35Mpa, the lubricating grease can be directly supplied to a remote lubricating point, and if the lubricating grease is matched with a progressive distributor, the grease supply range can be greatly expanded so as to meet the requirement of multiple lubricating points of large machinery.

3. Reliable operation, stability is good: the design of a plurality of oil suction ports enables the oil to be fully sucked in the piston sleeve every time of circulation, so that the oil outlet is ensured to normally discharge oil, meanwhile, the automatic resetting function of the one-way valve ensures that the oil discharge amount of each circulation is the same, and the oil can be accurately supplied to each lubricating point in a fixed amount.

4. Adjusting the oil quantity: the single-circulation output can be adjusted between 0.5mm and 5.0mm according to requirements.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a lubricating pump for hydraulic equipment according to the present invention;

fig. 2 is a schematic structural diagram of a piston valve core in a lubricating pump for hydraulic equipment according to the present invention;

fig. 3 is a schematic structural diagram of an oil-out joint in a lubrication pump for a hydraulic apparatus of the present invention.

Fig. 4 is a schematic structural diagram of a check valve oil outlet joint in a lubrication pump for a hydraulic device according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: a lubricating pump for hydraulic equipment comprises a valve body 1, a pump rear cover 3, a pump front cover 4, a pump element one-way valve core 5, a one-way valve oil outlet joint 7 and a piston valve core 8, wherein the front end and the rear end of the valve body 1 are respectively provided with the pump front cover 4 and the pump rear cover 3 through screws 11, the piston valve core 8 is arranged in the valve body 1, a piston sleeve 19 is sleeved on the piston valve core 8, an oil suction port 18 communicated with the piston sleeve 19 is formed in the valve body 1, the top end of the piston valve core 8 is connected with a front spring seat 2, the front end of the pump front cover 4 is provided with a rear spring seat 6, a return spring 10 is connected between the front spring seat 2 and the rear spring seat 6, the left end of the piston sleeve 9 is arranged in the valve body 1, and the pump element one-way valve core 5 is connected with the; an oil outlet pipeline 21 is arranged on the outer side of the piston valve core 8 in the valve body 1, a first oil outlet 20 communicated with the oil outlet pipeline 21 is formed between the pump element one-way valve core 5 and the pump rear cover 3 in the valve body 1, and a one-way valve oil outlet joint 7 communicated with the oil outlet pipeline 21 is arranged on the outer wall of the valve body 1.

Specifically, a one-way valve 15 is installed on the lower portion of the inside of the one-way valve oil outlet joint 7, an oil outlet end portion 17 is installed on the upper portion of the inside of the one-way valve oil outlet joint, and an oil outlet spring 16 is connected between the one-way valve 15 and the oil outlet end portion 17.

Specifically, a ball expansion type high-pressure plug 14 is arranged at the joint of the oil outlet pipeline 21, the valve body 1 and the pump rear cover 3.

Specifically, an O-shaped ring 12 is arranged at the joint of the pump rear cover 3 and the valve body 1.

Specifically, a Y-shaped sealing ring 13 is arranged at the joint of the piston sleeve 19 and the left end of the valve body 1.

The utility model discloses a theory of operation and use flow: when the utility model is used, the drawing is a structural schematic diagram of the pump element; the control piston valve core 8 moves to the extreme position to the right under the action of the return spring 10, the oil suction port 18 is opened, the lubricant is sucked into the piston sleeve 19, and meanwhile, the control piston valve core 8 moves to the extreme position to the left under the action of external force; when the working piston moves leftwards, the lubricant in the inner cavity of the piston sleeve 19 is pushed, and the lubricant and the control piston valve core 8 move leftwards together; when an oil channel on a piston valve core 8 to be controlled is communicated with a pump element valve core 5 at the left end of a piston sleeve, a one-way valve spring 9 is compressed to continue moving leftwards, a first oil outlet 20 is opened, lubricating grease is pressed out from the first oil outlet 20 to flow to an oil outlet pipeline 21, a one-way valve 15 is opened, and the lubricating grease is discharged from an end 17 of the oil outlet; under the continuous action of external force, the lubricating grease is continuously and sequentially discharged from the oil outlet end part 17 of the pump element.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 lubrication pump for a hydraulic apparatus, characterized by: comprises a valve body (1), a pump rear cover (3), a pump front cover (4), a pump element one-way valve core (5), a one-way valve oil outlet joint (7) and a piston valve core (8), a front pump cover (4) and a rear pump cover (3) are respectively arranged at the front end and the rear end of a valve body (1) through screws (11), a piston valve core (8) is arranged in the valve body (1), a piston sleeve (19) is sleeved on the piston valve core (8), an oil suction port (18) communicated with the piston sleeve (19) is arranged on the valve body (1), a front spring seat (2) is connected to the top end of the piston valve core (8), a rear spring seat (6) is arranged at the front end of the front pump cover (4), a return spring (10) is connected between the front spring seat (2) and the rear spring seat (6), a one-way pump element valve core (5) is arranged at the left end of the piston sleeve (19) in the valve body (1), and a one-way valve spring (9) is connected between the one-way pump element valve core; an oil outlet pipeline (21) is arranged on the outer side of the piston valve core (8) in the valve body (1), a first oil outlet (20) communicated with the oil outlet pipeline (21) is formed between the pump element one-way valve core (5) and the pump rear cover (3) in the valve body (1), and a one-way valve oil outlet connector (7) communicated with the oil outlet pipeline (21) is arranged on the outer wall of the valve body (1).

2. The lubrication pump for a hydraulic apparatus according to claim 1, wherein: one-way valve (15) is installed below the inner portion of one-way valve oil outlet connector (7), oil outlet end portion (17) is installed above the inner portion of the one-way valve oil outlet connector, and an oil outlet spring (16) is connected between the one-way valve (15) and the oil outlet end portion (17).

3. The lubrication pump for a hydraulic apparatus according to claim 1, wherein: and a ball expansion type high-pressure plug (14) is arranged at the joint of the oil outlet pipeline (21) and the valve body (1) and the pump rear cover (3).

4. The lubrication pump for a hydraulic apparatus according to claim 1, wherein: and an O-shaped ring (12) is arranged at the joint of the pump rear cover (3) and the valve body (1).

5. The lubrication pump for a hydraulic apparatus according to claim 1, wherein: and a Y-shaped sealing ring (13) is arranged at the joint of the piston sleeve (19) and the left end of the valve body (1).