Oil supplementing pump with cooling function

Abstract

The invention discloses an oil supplementing pump with a cooling function. The oil supplementing pump comprises an oil cavity body, a main shaft component, an oil inlet valve, an oil outlet valve and a plunger sleeve. The main shaft component is mounted in an inner cavity of the oil cavity body; two ends of the oil inlet valve are respectively connected with the main shaft component and the oil discharge valve; the plunger sleeve is sleeved outside the oil inlet valve and the oil outlet valve; a cooling source inlet and a cooling source outlet are formed in the portion, extending out of the open end of the oil cavity body, of the plunger sleeve, a cooling channel is formed in the position, located at the joint of the oil inlet valve and the oil outlet valve, in the plunger sleeve, and the two ends of the cooling channel communicate with the cooling source inlet and the cooling source outlet correspondingly. The cooling source inlet and the cooling source outlet are formed in the plunger sleeve, the cooling channel is formed in the position, located at the joint of the oil inlet valve and the oil outlet valve, of the plunger sleeve, a cooling source is directly close to the position where high-pressure oil is compressed to cause local high temperature, heat generated by the high-pressure oil can be removed in time, and the cooling effect is more obvious; the working stability and the service life of the oil supplementing pump are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of diaphragm compressors, and in particular to an oil replenishing pump with a cooling function. Background Art

[0002] The diaphragm compressor is a positive displacement compressor. It relies on hydraulic oil to push the diaphragm in the diaphragm head to reciprocate, and the diaphragm deforms to achieve gas compression. The oil replenishment pump is a key component in the compression process. During the compression stage of the stroke, the oil replenishment pump replenishes oil into the diaphragm head to ensure the compression. At the end of the compression stage of the stroke, the excess oil can flow back through the oil replenishment pump.

[0003] In the above process, the cyclic input and output of the high-pressure hydraulic oil in the oil charge pump causes a high local temperature rise, which is not conducive to the normal operation of the oil charge pump and reduces its service life. Summary of the invention

[0004] The present invention can solve the above-mentioned problems caused by the oil temperature rise of the oil replenishment pump for the diaphragm compressor in the prior art by providing an oil replenishment pump with a cooling function.

[0005] In order to solve the above technical problems, the present invention provides an oil replenishment pump with cooling function, comprising: an oil chamber body, a spindle component, an oil inlet valve, an oil discharge valve and a plunger sleeve; Wherein, one end of the oil chamber body is a closed end, and the other end is an open end; The spindle component is installed in the internal cavity of the oil chamber body; The oil inlet valve passes through the open end of the oil chamber body, one end of which is linked to the main shaft component, and the other end of which is connected to the oil drain valve; The plunger sleeve is sleeved on the outside of the oil inlet valve and the oil discharge valve, and is threadedly connected to the inner wall surface of the open end of the oil chamber body; A cooling source inlet and a cooling source outlet are provided at the portion of the plunger sleeve extending out of the open end of the oil chamber body, and a cooling channel is provided inside the plunger sleeve at the outside of the connection between the oil inlet valve and the oil drain valve, and both ends of the cooling channel are respectively connected to the cooling source inlet and the cooling source outlet.

[0006] In a preferred embodiment of the present invention, the cooling channel is an annular water channel; Cooling source distribution channels are also provided at both ends of the cooling channel in the plunger sleeve; One end of the cooling source distribution channel is connected to both ends of the cooling channel, and the other end is connected to the cooling source inlet or the cooling source outlet.

[0007] In a preferred embodiment of the present invention, the width of the cooling channel is greater than the length of the joint between the oil inlet valve and the oil drain valve.

[0008] In a preferred embodiment of the present invention, the distance between the cooling channel and the joint of the oil inlet valve and the oil discharge valve is 1 / 3 to 1 / 2 of the wall thickness of the plunger sleeve.

[0009] In a preferred embodiment of the present invention, a sealing ring is installed between the cooling channel and the end surface of the oil drain valve.

[0010] In a preferred embodiment of the present invention, an annular sealing gasket is installed between the portion of the plunger sleeve extending out of the open end of the oil chamber body and the end surface of the oil chamber body.

[0011] In a preferred embodiment of the present invention, an end of the oil drain valve away from the plunger sleeve is connected to a seismic-resistant joint.

[0012] In a preferred embodiment of the present invention, the oil passages in the oil inlet valve and the oil outlet valve are in a common straight line.

[0013] In a preferred embodiment of the present invention, the oil passage of the oil inlet valve is connected to the internal cavity of the oil chamber body through an oil inlet.

[0014] In a preferred embodiment of the present invention, an oil discharge port is formed at one end of the oil passage of the oil discharge valve close to the anti-seismic joint.

[0015] The beneficial effects of the present invention are as follows: the present invention provides an oil replenishing pump with a cooling function, by providing a cooling source inlet and a cooling source outlet on the plunger sleeve, and providing a cooling channel at the plunger sleeve at the connection between the oil inlet valve and the oil outlet valve, so that the cooling source is directly close to the position where the high-pressure oil is compressed and causes local high temperature, so that the heat generated by the high-pressure oil can be removed in time, the cooling effect is more obvious, the cooling effect is good, and the working stability and service life of the oil replenishing pump can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of an oil charge pump with cooling function of the present invention; Figure 2 1 is a schematic diagram of the longitudinal section structure of the plunger sleeve; Figure 3 1 is a schematic diagram of the cross-sectional structure of the plunger sleeve shown; The markings of the components in the accompanying drawings are as follows: 10. Oil chamber body, 11. Open end; 20. Spindle components; 30. Oil inlet valve, 31. Oil inlet; 40. oil drain valve, 41. oil drain port, 42. annular protrusion; 50. Plunger sleeve, 51. Cooling source inlet, 52. Cooling source outlet, 53. Cooling channel, 54. Cooling source distribution channel; 60. Anti-seismic joint, 70. Sealing ring, 80. Ring sealing gasket. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] See also Figure 1-3 , the embodiment of the present invention includes: Example 1

[0019] The present invention discloses an oil replenishment pump with a cooling function, comprising an oil chamber body 10 , a spindle component 20 , an oil inlet valve 30 , an oil discharge valve 40 and a plunger sleeve 50 .

[0020] Specifically, one end of the oil chamber body 10 is a closed end, and the other end is an open end 11, and the internal cavity thereof is an oil chamber. The inner wall surface of the open end 11 has an internal thread.

[0021] The main shaft component 20 is built in the inner cavity of the oil chamber body 10. The main shaft component 20 is an eccentric structure, and performs a rotational motion in the oil chamber of the oil replenishment pump to deliver the oil into the oil inlet valve 30.

[0022] The oil inlet valve 30 passes through the open end 11 of the oil chamber body 10 , one end of which is linked to the main shaft component 20 , and the other end of which is connected to the oil discharge valve 40 .

[0023] Specifically, the oil inlet valve 30 has an oil passage distributed along its central axis, and one end of the oil passage close to the spindle component 20 has an outwardly extending oil inlet 31, which is connected to the internal cavity of the oil chamber body 10, that is, connected to the oil chamber.

[0024] The left end of the oil drain valve 40 is connected to the end of the oil inlet valve 30, and the right end thereof is connected to the anti-seismic joint 60. The oil drain valve 40 has an oil passage distributed along its central axis, and an oil drain port 41 is provided at one end of the oil passage close to the anti-seismic joint 60. The oil passages in the oil inlet valve 30 and the oil drain valve 40 are in a straight line, and the oil passage joints of the oil inlet valve 30 and the oil drain valve 40 are provided with round balls and springs to ensure smooth oil flow and prevent leakage.

[0025] The plunger sleeve 50 is sleeved on the outside of the oil inlet valve 30 and the oil discharge valve 40. Specifically, one end of the plunger sleeve 50 is a thin-diameter end with an external thread, extending between the oil inlet valve 30 and the open end 11 of the oil chamber body 10, and threadedly connected with the open end 11. The other end of the plunger sleeve 50 is a wide-diameter end, located between the open end 11 and the annular protrusion 42 of the oil discharge valve 40.

[0026] The portion of the plunger sleeve 50 extending out of the open end 11 of the oil chamber body 10, i.e., the portion of the wide diameter end thereof, is provided with a cooling source inlet 51 and a cooling source outlet 52. The cooling source inlet 51 is located at the lower portion of the plunger sleeve 50, and the cooling source outlet 52 is located at the upper portion of the plunger sleeve 50. Both the cooling source inlet 51 and the cooling source outlet 52 are threaded structures, which are convenient for connection and sealing with the cooling source pipeline.

[0027] A cooling channel 53 is provided inside the plunger sleeve 50 at the outer side of the connection between the oil inlet valve 30 and the oil discharge valve 40. The cooling channel 53 is an annular water channel whose width is greater than the joint length of the oil inlet valve and the oil discharge valve. On the one hand, it expands the cooling area, and on the other hand, it does not affect the strength of the plunger sleeve 50.

[0028] The distance between the cooling channel 53 and the joint of the oil inlet valve and the oil discharge valve is 1 / 3 to 1 / 2 of the wall thickness of the plunger sleeve, thereby ensuring the cooling effect.

[0029] Specifically, cooling source distribution channels 54 are further provided at both ends of the cooling channel in the plunger sleeve 50. Located on one side of the cooling source inlet 51, one end of the cooling source distribution channel 54 is connected to the cooling channel 53, and the other end thereof is connected to the cooling source inlet 51; located on one side of the cooling source outlet 52, one end of the cooling source distribution channel 54 is connected to the cooling channel 53, and the other end thereof is connected to the cooling source outlet 52. Through the design of the cooling source distribution channel 54.

[0030] The present invention has found through experiments that the local high temperature area generated by the operation of the oil replenishment pump is concentrated at the position of the oil inlet valve 30, especially at the connection between the oil inlet valve 30 and the oil drain valve 40. Therefore, by arranging the cooling channel 53 on the outside of the connection between the oil inlet valve 30 and the oil drain valve 40, and by designing the size and specific position of the cooling channel 53, the high temperature generated by the oil can be directly and effectively removed, and the cooling effect is good.

[0031] Through the design of the above-mentioned cooling source inlet 51, cooling source outlet 52, cooling channel 53 and cooling source distribution channel 54, a cooling source, such as cooling water, is input from the cooling source inlet 51, and is discharged in sequence through the cooling source distribution channel 54, the cooling channel 53, the cooling source distribution channel 54 and the cooling source outlet 52, thereby taking away the heat generated by the compressed oil and achieving effective cooling of the oil replenishment pump.

[0032] In addition, a sealing ring 70 is installed between the cooling channel 53 and the end surface of the annular protrusion 42 of the oil drain valve 40 to prevent the cooling source from leaking out.

[0033] An annular sealing gasket 80 is installed between the portion of the plunger sleeve 50 extending out of the open end 11 of the oil chamber body 10 and the end surface of the oil chamber body 10 to seal between the plunger sleeve 50 and the oil chamber body 10 to prevent the oil in the oil chamber from leaking out.

[0034] The present invention discloses an oil replenishing pump with a cooling function, which is used for a diaphragm compressor. Through the design of a cooling source inlet 51, a cooling source outlet 52, a cooling channel 53 and a cooling source distribution channel 54 located at the connection between an oil inlet valve and an oil outlet valve in a plunger sleeve, the cooling source is directly close to the position where local high temperature is caused by compression of high-pressure oil, so that the heat generated by the high-pressure oil can be removed in time, the cooling effect is more obvious, the cooling effect is good, and the working stability and service life of the oil replenishing pump can be effectively improved.

[0035] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A charge pump with cooling function, characterized in that: include: Oil chamber body, spindle components, oil inlet valve, oil drain valve and plunger sleeve; Wherein, one end of the oil chamber body is a closed end, and the other end is an open end; The spindle component is installed in the internal cavity of the oil chamber body; The oil inlet valve passes through the open end of the oil chamber body, one end of which is linked to the main shaft component, and the other end of which is connected to the oil drain valve; The plunger sleeve is sleeved on the outside of the oil inlet valve and the oil discharge valve, and is threadedly connected to the inner wall surface of the open end of the oil chamber body; A cooling source inlet and a cooling source outlet are provided at the portion of the plunger sleeve extending out of the open end of the oil chamber body, and a cooling channel is provided inside the plunger sleeve at the outside of the connection between the oil inlet valve and the oil drain valve, and both ends of the cooling channel are respectively connected to the cooling source inlet and the cooling source outlet.

2. The oil charge pump with cooling function according to claim 1, characterized in that: The cooling channel is an annular water channel; Cooling source distribution channels are also provided at both ends of the cooling channel in the plunger sleeve; One end of the cooling source distribution channel is connected to both ends of the cooling channel, and the other end is connected to the cooling source inlet or the cooling source outlet.

3. The oil charge pump with cooling function according to claim 2, characterized in that: The width of the cooling channel is greater than the joint length of the oil inlet valve and the oil drain valve.

4. The oil charge pump with cooling function according to claim 3, characterized in that: The distance between the cooling channel and the joint of the oil inlet valve and the oil discharge valve is 1 / 3 to 1 / 2 of the wall thickness of the plunger sleeve.

5. The oil charge pump with cooling function according to claim 4, characterized in that: A sealing ring is installed between the cooling channel and the end surface of the oil drain valve.

6. The oil charge pump with cooling function according to claim 5, characterized in that: An annular sealing gasket is installed between the portion of the plunger sleeve extending out of the opening end of the oil chamber body and the end surface of the oil chamber body.

7. The oil charge pump with cooling function according to claim 6, characterized in that: One end of the oil drain valve away from the plunger sleeve is connected with an anti-vibration joint.

8. The oil charge pump with cooling function according to claim 7, characterized in that: The oil passages in the oil inlet valve and the oil outlet valve are in a straight line.

9. The oil charge pump with cooling function according to claim 8, characterized in that: The oil passage of the oil inlet valve is communicated with the inner cavity of the oil chamber body through the oil inlet.

10. The oil charge pump with cooling function according to claim 8, characterized in that: An oil discharge port is provided at one end of the oil passage of the oil discharge valve close to the anti-seismic joint.

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