CN217518766U

CN217518766U - Plunger type high-pressure oil pump

Info

Publication number: CN217518766U
Application number: CN202221348037.XU
Authority: CN
Inventors: 赵典秋; 华海峰; 林友贵; 赵典隆; 黄程强; 苏玉英; 王林风; 周立斌; 钟瑞文
Original assignee: Zhejiang Baton Dynamics Systems Co ltd
Current assignee: Zhejiang Baton Dynamics Systems Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-09-30
Anticipated expiration: 2032-06-01

Abstract

The utility model discloses a plunger type high-pressure oil pump, solenoid valve assembly include the casing and set up front end housing and the rear end cap of both sides around the casing, and the three forms a cavity, be equipped with magnetism proof cover in the cavity, magnetism proof cover front end is connected with the rear side of front end housing, magnetism proof cover's the outside is equipped with coil pack, be equipped with the plug-in components seat on the rear end cap, the front end housing front end is equipped with disk seat and valve rod, the valve rod passes disk seat and front end housing get into in the magnetism proof cover, the valve rod end is equipped with the correction piece with magnetism proof cover looks adaptation, be equipped with armature on the valve rod, armature can slide the setting and be in the magnetism proof cover. The magnetism isolating sleeve is integrally formed by the armature seat and the magnetism isolating ring of the electromagnetic valve component, and the correcting piece is arranged at the tail end of the valve rod, so that the valve rod is coaxially arranged relative to the magnetism isolating sleeve, the coaxiality of the valve rod is guaranteed, the structure is simple, welding points are reduced, and the installation efficiency can be effectively improved.

Description

Plunger type high-pressure oil pump

Technical Field

The utility model particularly relates to a plunger type high-pressure oil pump.

Background

The plunger type high-pressure oil pump is communicated with the oil cavity and the plunger cavity through the battery valve component, the structure of the existing electromagnetic valve component is complex, the existing electromagnetic valve component and the pump body are fixed through multiple welding, the coaxiality of the valve rod is influenced by installation, and when the electromagnetic valve component is installed, attention needs to be paid to ensuring the coaxiality of the valve rod, and the installation efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a plunger type high-pressure oil pump.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a plunger type high-pressure oil pump comprises a pump body, wherein one end of the pump body is provided with a plunger assembly, one end symmetrically arranged with the plunger assembly is provided with an oil cavity, the bottom of the oil cavity is provided with an oil inlet pipe communicated with the oil cavity, one side of the pump body is provided with an oil outlet pipe, the other side corresponding to the pump body is provided with a solenoid valve assembly, the oil cavity is communicated with the solenoid valve assembly, the solenoid valve assembly is communicated with the oil outlet pipe through the plunger assembly, the oil outlet pipe is internally provided with the oil outlet valve assembly, the solenoid valve assembly comprises a shell, a front end cover and a rear end cover, the front end cover and the rear end cover are arranged on the front side and the rear side of the shell, a cavity is formed by the front end of the shell and the rear end cover, a magnetic separation sleeve is arranged in the cavity, the front end of the magnetic separation sleeve is connected with the rear side of the front end cover, the outer side of the magnetic separation sleeve is provided with a coil assembly, the rear end cover is provided with an insert seat and a valve rod, the valve rod penetrates through the seat and the front end cover to enter the magnetic separation sleeve, the tail end of the valve rod is provided with a correcting piece matched with the magnetic isolation sleeve, the valve rod is provided with an armature, and the armature can be arranged in the magnetic isolation sleeve in a sliding mode.

The electromagnetic valve assembly is in threaded connection with the pump body.

The valve rod is provided with a limiting part, and an elastic part is arranged between the limiting part and the valve seat.

The front end of the front end cover is provided with a mounting groove, and the limiting piece can be arranged in the mounting groove in a sliding mode.

And a sealing element is arranged between the electromagnetic valve component and the pump body.

The oil outlet valve assembly comprises an oil outlet valve and an oil outlet nozzle which are arranged in a split mode, the oil outlet valve is arranged in an oil outlet pipe of the pump body, and the oil outlet nozzle is in threaded connection with the pump body.

The oil outlet valve comprises an oil outlet valve seat and an oil outlet cover fixedly connected with the oil outlet valve seat, a plurality of holes are formed in the oil outlet cover, a ball core is arranged in the oil outlet cover, and an elastic piece pressing the ball core on the valve seat is arranged between the oil outlet cover and the ball core.

The oil cavity is internally provided with a blind hole formed in the pump body, a crevasse is formed between the side wall of the blind hole and the oil outlet pipe of the pump body, and the blind hole is internally provided with a pressure relief valve component.

The pressure relief valve assembly comprises a pressure relief valve body which is in sealing fit with the hole wall of the blind hole, a backflow cavity is formed between the front end of the pressure relief valve body and the hole wall, a pressure relief valve seat is arranged at one end of the pressure relief valve body, a pressure relief valve rod is arranged in the pressure relief valve body, the pressure relief valve rod is pressed on an elastic piece on the pressure relief valve seat, and a pressure relief ball core is arranged between the pressure relief valve rod and the pressure relief valve seat.

The utility model has the advantages that: the magnetism isolating sleeve is integrally formed by the armature seat and the magnetism isolating ring of the electromagnetic valve component, and the correcting piece is arranged at the tail end of the valve rod, so that the valve rod is coaxially arranged relative to the magnetism isolating sleeve, the coaxiality of the valve rod is guaranteed, the structure is simple, welding points are reduced, and the installation efficiency can be effectively improved.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a schematic cross-sectional view of the relief valve assembly of the present invention.

Fig. 3 is a schematic sectional view of the solenoid valve assembly of the present invention.

Fig. 4 is a schematic sectional view of the delivery valve of 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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically connected or connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in the figure, the plunger type high-pressure oil pump comprises a pump body 1, wherein one end of the pump body is provided with a plunger assembly 4, one end symmetrically arranged with the plunger assembly is provided with an oil cavity 2, the oil cavity 2 is formed by assembling a bottom cover and the pump body, the bottom of the oil cavity 2 is provided with an oil inlet pipe 21 communicated with the oil cavity, the oil inlet pipe is directly formed on the bottom cover, one side of the pump body is provided with an oil outlet pipe, the other side corresponding to the oil cavity is provided with a solenoid valve assembly 3, the oil cavity 2 is communicated with the solenoid valve assembly 3, the solenoid valve assembly is communicated with the oil outlet pipe through the plunger assembly 4, the oil outlet pipe is internally provided with an oil outlet valve assembly 5, the solenoid valve assembly 3 comprises a shell 31, a front end cover 32 and a rear end cover 33 which are arranged at the front side and the rear side of the shell 31, the three form a cavity, the outer side of the shell is provided with threads for connecting with the pump body to realize the fixed connection of the solenoid valve assembly and the pump body, the magnetic isolation sleeve 35 is arranged in the cavity, the magnetic isolation sleeve integrally designs an original armature seat and a magnetic isolation ring to form a structure with a columnar groove, the front end of the magnetic isolation sleeve 35 is connected with the rear side of the front end cover 32, welding of two original structures can be completed only by one-time welding, welding points are reduced, deviation in an assembly process can be reduced, coaxiality is better, a coil assembly 39 is arranged on the outer side of the magnetic isolation sleeve 35, an insert seat 34 is arranged on the rear end cover, an insert pin in the insert seat is electrically connected with the coil assembly, a valve seat 310 and a valve rod 37 are arranged at the front end of the front end cover, the valve rod 37 penetrates through the valve seat 310 and the front end cover to enter the magnetic isolation sleeve 35, the valve rod is T-shaped, an oil outlet hole at the front end of the valve seat can be closed, and the valve rod is T-shaped, so that the coaxiality of movement of the valve rod needs to be ensured, otherwise, sealing is unreliable, the tail end of the valve rod is provided with a correcting piece 36 matched with the magnetism isolating sleeve, the diameter of the correcting piece is matched with that of the magnetism isolating sleeve, the function of stabilizing the valve rod is achieved, the valve rod is provided with an armature 38, the armature can be arranged in the magnetism isolating sleeve in a sliding mode, the valve rod can be driven to move under the control of the coil assembly, and the electromagnetic valve assembly is opened and closed.

The valve rod is provided with a limiting member 312, an elastic member is arranged between the limiting member 312 and the valve seat, and the valve rod moves forward by the elastic member.

The front end of the front end cover is provided with a mounting groove 311, and the limiting piece 312 can be arranged in the mounting groove in a sliding manner to play a role of avoiding, so that the valve rod can move back and forth relatively.

And a sealing element is arranged between the electromagnetic valve component and the pump body, so that the sealing effect is achieved.

The oil outlet valve assembly 5 comprises an oil outlet valve 51 and an oil outlet nozzle 52 which are arranged in a split manner, the oil outlet valve is arranged in an oil outlet pipe of the pump body, and the oil outlet nozzle is in threaded connection with the pump body. Wherein, the oil outlet valve direct fixation sets up in the delivery pipe of the pump body, then with glib and pump body threaded connection, accomplishes the equipment, goes out the inner wall realization hard seal of glib and delivery pipe moreover, guarantees the sealing reliability between the two.

The delivery valve includes delivery valve seat 512 and covers 511 with delivery valve seat fixed connection's the delivery of oil, it is equipped with a plurality of holes to cover to produce oil, be equipped with ball core 513 in the cover to produce oil, be equipped with between cover and the ball core and press the ball core elastic component on the disk seat, the diameter and the ball core looks adaptation of cover of producing oil play the effect of restriction ball core, under the effect of oil pressure, push away the ball core, realize the action of producing oil.

Be equipped with a blind hole that becomes on the pump body in the oil pocket, form the breach between the lateral wall of blind hole and the play oil pipe of the pump body, be equipped with relief valve subassembly 6 in the blind hole, install the relief valve inside the pump body, external mounting means in the past, its structure is more reliable, and directly utilizes blind hole and play oil pipe crossing in the vertical direction for form the breach between the two, utilize breach and blind hole to form out the return circuit between oil pipe and the oil pocket.

The relief valve assembly 6 includes and constitutes sealed complex pressure release valve body 61 with the pore wall of blind hole, form backward flow chamber 11 between the front end of pressure release valve body 61 and the pore wall, the one end of pressure release valve body 61 is equipped with pressure release disk seat 64, is equipped with pressure release valve rod 62 in it and presses the pressure release valve rod the elastic component on the pressure release disk seat, be equipped with pressure release ball core 63 between pressure release valve rod 62 and the pressure release disk seat 64, be equipped with the constant head tank that is used for installing the pressure release ball core on the pressure release valve rod, utilize the oil pressure to push open the pressure release ball core to outside from the valve rod is to the oil pocket, thereby realizes the regulation of oil pressure.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a plunger type high-pressure oil pump, its includes the pump body (1), the one end of the pump body is equipped with plunger subassembly (4), and the one end that sets up rather than the symmetry is equipped with oil pocket (2), the bottom of oil pocket (2) is equipped with rather than the oil pipe (21) that advances that communicate and set up, one side of the pump body is equipped with out oil pipe, and the opposite side that corresponds rather than is equipped with solenoid valve subassembly (3), oil pocket (2) and solenoid valve subassembly (3) intercommunication set up, solenoid valve subassembly (3) set up through plunger subassembly (4) and play oil pipe intercommunication, it is equipped with out oil valve subassembly (5), its characterized in that in going out oil pipe: the electromagnetic valve component (3) comprises a shell (31), a front end cover (32) and a rear end cover (33), wherein the front end cover (32) and the rear end cover (33) are arranged on the front side and the rear side of the shell (31) respectively, a cavity is formed by the three components, a magnetism isolating sleeve (35) is arranged in the cavity, the front end of the magnetism isolating sleeve (35) is connected with the rear side of the front end cover (32), a coil component (39) is arranged on the outer side of the magnetism isolating sleeve (35), an insert seat (34) is arranged on the rear end cover, a valve seat (310) and a valve rod (37) are arranged at the front end of the front end cover, the valve rod (37) penetrates through the valve seat (310) and the front end cover to enter the interior of the magnetism isolating sleeve (35), a correcting component (36) matched with the magnetism isolating sleeve is arranged at the tail end of the valve rod, an armature (38) is arranged on the valve rod, and the armature can be arranged in the magnetism isolating sleeve in a sliding mode.

2. A plunger-type high-pressure oil pump as set forth in claim 1, characterized in that: the electromagnetic valve assembly is in threaded connection with the pump body.

3. A plunger-type high-pressure oil pump as set forth in claim 1, characterized in that: a limiting piece (312) is arranged on the valve rod, and an elastic piece is arranged between the limiting piece (312) and the valve seat.

4. A plunger-type high-pressure oil pump as set forth in claim 3, characterized in that: the front end of the front end cover is provided with a mounting groove (311), and the limiting piece (312) can be arranged in the mounting groove in a sliding mode.

5. A plunger type high pressure oil pump as set forth in claim 1, wherein: and a sealing element is arranged between the electromagnetic valve component and the pump body.

6. A plunger type high pressure oil pump as set forth in claim 1, wherein: the oil outlet valve assembly (5) comprises an oil outlet valve (51) and an oil outlet nozzle (52) which are arranged in a split mode, the oil outlet valve is arranged in an oil outlet pipe of the pump body, and the oil outlet nozzle is in threaded connection with the pump body.

7. A plunger-type high-pressure oil pump as set forth in claim 6, characterized in that: the oil outlet valve comprises an oil outlet valve seat (512) and an oil outlet cover (511) fixedly connected with the oil outlet valve seat, a plurality of holes are formed in the oil outlet cover, a ball core (513) is arranged in the oil outlet cover, and an elastic piece pressing the ball core on the valve seat is arranged between the oil outlet cover and the ball core.

8. A plunger-type high-pressure oil pump as set forth in claim 1, characterized in that: the oil cavity is internally provided with a blind hole formed in the pump body, a crevasse is formed between the side wall of the blind hole and the oil outlet pipe of the pump body, and the blind hole is internally provided with a pressure relief valve assembly (6).

9. A plunger-type high-pressure oil pump as set forth in claim 8, characterized in that: pressure release valve subassembly (6) include constitute sealed complex pressure release valve body (61) with the pore wall of blind hole, form backward flow chamber (11) between the front end of pressure release valve body (61) and the pore wall, the one end of pressure release valve body (61) is equipped with pressure release disk seat (64), is equipped with pressure release valve rod (62) in it and presses the pressure release valve rod elastic component on the pressure release disk seat, be equipped with pressure release ball core (63) between pressure release valve rod (62) and pressure release disk seat (64).