阅读说明：本技术 一种撬装高压柱塞泵结构 (Skid-mounted high-pressure plunger pump structure ) 是由 李泰余 高贵斌 彭国勋 张斌 李曼平 杨金峰 初立国 杨飞涛 李玉杰 杨金智 王 于 2020-07-17 设计创作，主要内容包括：本发明公开了一种撬装高压柱塞泵结构,包括壳体,所述壳体的内腔一侧滑动连接有活塞,所述壳体的外壁左侧的下部连通有进油口,所述壳体的外壁左侧上部连通有出油口,所述壳体的内腔左侧壁焊接有高压弹簧,所述第一滑杆的外壁滑动连接有第一滑块,所述空腔的外部一侧等距分布有数量至少为十六个的减振组件,所述壳体的内腔上下两侧位于减振组件的外侧焊接有横板,所述横板的外侧等距分布有数量至少为十六个的滑动杆组件,所述活塞的一侧等距滚动连接有数量为四个的钢珠,所述钢珠的一侧设有凸轮。本发明能够有效的减少活塞和凸轮之间的磨损,延长其使用寿命,能够有效的减少机体工作时产生的强振和噪音,进行二级减振和噪音的吸收。(The invention discloses a skid-mounted high-pressure plunger pump structure which comprises a shell, wherein one side of an inner cavity of the shell is connected with a piston in a sliding mode, the lower portion of the left side of the outer wall of the shell is communicated with an oil inlet, the upper portion of the left side of the outer wall of the shell is communicated with an oil outlet, a high-pressure spring is welded on the left side wall of the inner cavity of the shell, the outer wall of a first sliding rod is connected with a first sliding block in a sliding mode, at least sixteen vibration damping assemblies are distributed on one side of the outer portion of a cavity at equal intervals, transverse plates are welded on the outer sides of the vibration damping assemblies on the upper side and the lower side of the inner cavity of the shell, at least sixteen sliding rod assemblies are distributed on the outer sides of the. The invention can effectively reduce the abrasion between the piston and the cam, prolong the service life of the piston and the cam, effectively reduce the strong vibration and the noise generated when the machine body works, and carry out secondary vibration reduction and noise absorption.)

1. The utility model provides a sled dress high pressure plunger pump structure, includes casing (1), its characterized in that: a piston (2) is connected to one side of an inner cavity of the shell (1) in a sliding manner, one side of the piston (2) penetrates through the right side of the outer wall of the shell (1), an oil inlet (6) is communicated with the lower portion of the left side of the outer wall of the shell (1), an oil outlet (7) is communicated with the upper portion of the left side of the outer wall of the shell (1), a high-pressure spring (9) is welded to the left side wall of the inner cavity of the shell (1), one side of the high-pressure spring (9) is welded to the left side wall of the piston (2), cavities (13) are formed in the upper side and the lower side of the inner cavity of the shell (1), a first sliding rod (14) is welded to the inner cavity of the cavity (13), a first sliding block (15) is connected to the outer wall of the first sliding rod (14) in a sliding manner, at least sixteen damping assemblies (12) are distributed on one side of the outer, the sliding rod assembly is characterized in that at least sixteen sliding rod assemblies (10) are equidistantly distributed on the outer side of the transverse plate (11), four steel balls (8) are equidistantly connected to one side of the piston (2) in a rolling mode, and a cam (3) is arranged on one side of each steel ball (8).

2. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: sound absorption cotton (17) is filled between the adjacent sliding rod assemblies (10), and rock wool (16) is filled between the adjacent vibration reduction assemblies (12).

3. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: the sliding rod assembly (10) comprises a sliding sleeve (101), a third sliding rod (102), a second sliding rod (103), a second sliding block (104) and a damping spring (105), the inner cavity of the sliding sleeve (101) is connected with the third sliding rod (102) in a sliding mode, the second sliding rod (103) is welded to the two sides of the inner cavity of the third sliding rod (102), the second sliding block (104) is connected to the outer wall of the second sliding rod (103) in a sliding mode, and the outer wall of the second sliding block (104) is welded to the two sides of the lower portion of the inner cavity of the sliding sleeve (101).

4. The skid-mounted high-pressure plunger pump structure according to claim 3, wherein: the welding of the inner chamber top of sliding sleeve (101) has damping spring (105), one side of damping spring (105) and the outer wall top of third slide bar (102) weld mutually, the outer wall bottom of sliding sleeve (101) and the lower lateral wall welding on the inner chamber of casing (1).

5. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: one side of the oil outlet (7) is communicated with the inner cavity of the shell (1), and one side of the oil inlet (6) is communicated with the inner cavity of the shell (1).

6. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: the vibration reduction assembly (12) comprises a vibration reduction seat (121), vibration reduction damping (122) and vibration reduction keels (123), the vibration reduction damping (122) is filled in the inner cavity of the vibration reduction seat (121), the vibration reduction keels (123) are arranged on the top of the outer wall of the vibration reduction seat (121), and one side of each vibration reduction keel (123) penetrates through the outer wall of the vibration reduction seat (121) and extends to the inner cavity of the vibration reduction seat (121).

7. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: the piston is characterized in that guide rings (4) are arranged on the two sides, located on the piston (2), of the upper portion of the right side of the outer wall of the shell (1) and the lower portion of the right side of the outer wall of the shell (1), and a support frame (5) is fixedly mounted on the outer side, located on the guide rings (4), of the lower portion of the right side of the outer wall of the shell (1.

8. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: the steel balls (8) are in rolling connection with the outer wall of the cam (3).

9. The skid-mounted high-pressure plunger pump structure according to claim 1, wherein: the top and the bottom of one side of the outer wall of the piston (2) are welded with the inner wall of the first sliding block (15).

Technical Field

The invention relates to the technical field of plunger pumps, in particular to a skid-mounted high-pressure plunger pump structure.

Background

The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. Plunger pumps are widely used in applications where high pressure, high flow and flow needs to be regulated, such as hydraulic machines, engineering machinery and ships. Plunger pumps are generally classified into single plunger pumps, horizontal plunger pumps, axial plunger pumps, and radial plunger pumps. The horizontal plunger pump is a hydraulic pump which is characterized in that a plurality of plungers (generally 3 or 6) are arranged in parallel, and the plungers are directly pushed to reciprocate by 1 crankshaft through a connecting rod sliding block or an eccentric shaft, so that a liquid sucking body and a liquid discharging body are realized. The axial plunger pump is a plunger pump in which the reciprocating direction of a piston or a plunger is parallel to the central axis of a cylinder. Axial plunger pumps operate using volume changes produced by the reciprocating motion of a plunger parallel to a drive shaft within a plunger bore. Because the plunger piston and the plunger piston hole are all round parts, high precision matching can be achieved, and therefore the volume efficiency is high. The straight shaft swash plate type plunger pump is divided into a pressure oil supply type plunger pump and a self-suction oil type plunger pump. The pressure oil supply type hydraulic pump mostly adopts an oil tank with air pressure, and the hydraulic oil tank for supplying oil by the air pressure can operate the machine only after the hydraulic oil tank reaches the use air pressure after starting the machine every time. If the air pressure of the hydraulic oil tank is insufficient, the machine is started, the sliding shoe in the hydraulic pump is pulled off, and abnormal abrasion between the return plate and the pressure plate in the pump body is caused. The hydraulic oil tank of the hydraulic plunger pump which supplies oil by air pressure can operate the machine only after the hydraulic oil tank reaches the use air pressure after the machine is started each time. The straight shaft swash plate type plunger pump is divided into two types of pressure oil supply type self-priming oil type. The pressure oil supply type hydraulic pump mostly adopts an oil tank with air pressure, the hydraulic pump is also provided with an oil supplementing branch pump to provide pressure oil for an oil inlet of the hydraulic pump, and the total reciprocating stroke L of a plunger piston of the plunger pump is constant and is determined by the lift of a cam. The amount of oil supplied to the plunger per cycle depends on the oil supply stroke, which is variable independently of camshaft control. The fuel supply start timing does not vary with the variation in the fuel supply stroke. The plunger is rotated to change the finish time of oil supply, thereby changing the oil supply amount. When the plunger pump works, the plunger is forced to do up-and-down reciprocating motion under the action of the cam on the camshaft of the fuel injection pump and the plunger spring, so that the oil pumping task is finished.

After the existing skid-mounted high-pressure plunger pump is used for a long time, the abrasion problem between a piston and a cam is serious, the service life of a machine body is shortened, the acquisition cost of an enterprise is increased, and meanwhile, the existing skid-mounted high-pressure plunger pump is large in noise problem and large in vibration amplitude of the machine body during working. Therefore, a skid-mounted high-pressure plunger pump structure is provided.

Disclosure of Invention

The invention aims to provide a skid-mounted high-pressure plunger pump structure to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a skid-mounted high-pressure plunger pump structure comprises a shell, wherein a piston is connected to one side of an inner cavity of the shell in a sliding mode, one side of the piston penetrates through the right side of the outer wall of the shell, an oil inlet is communicated with the lower portion of the left side of the outer wall of the shell, an oil outlet is communicated with the upper portion of the left side of the outer wall of the shell, a high-pressure spring is welded to the left side wall of the inner cavity of the shell, one side of the high-pressure spring is welded to the left side wall of the piston, cavities are formed in the upper side and the lower side of the inner cavity of the shell, a first sliding rod is welded to the inner cavity of each cavity, a first sliding block is connected to the outer wall of each first sliding rod in a sliding mode, at least sixteen vibration damping assemblies are distributed on one side of the outer portion of, one side of the piston is in equidistant rolling connection with four steel balls, and one side of each steel ball is provided with a cam.

As further preferable in the present technical solution: and sound absorbing cotton is filled between the adjacent sliding rod assemblies, and rock wool is filled between the adjacent vibration damping assemblies.

As further preferable in the present technical solution: the slide bar subassembly includes sliding sleeve, third slide bar, second slider and damping spring, the inner chamber sliding connection of sliding sleeve has the third slide bar, the second slide bar has all been welded to the inner chamber both sides of third slide bar, the equal sliding connection of outer wall of second slide bar has the second slider, the outer wall of second slider welds mutually with the inner chamber lower part both sides of sliding sleeve.

As further preferable in the present technical solution: the top of the inner cavity of the sliding sleeve is welded with a damping spring, one side of the damping spring is welded with the top of the outer wall of the third sliding rod, and the bottom of the outer wall of the sliding sleeve is welded with the upper side wall and the lower side wall of the inner cavity of the shell.

As further preferable in the present technical solution: one side of the oil outlet is communicated with the inner cavity of the shell, and one side of the oil inlet is communicated with the inner cavity of the shell.

As further preferable in the present technical solution: the vibration reduction assembly comprises a vibration reduction seat, vibration reduction damping and vibration reduction keels, the vibration reduction damping is filled in the inner cavity of the vibration reduction seat, the vibration reduction keels are arranged on the tops of the outer walls of the vibration reduction seat, and one side of each vibration reduction keel penetrates through the outer wall of the vibration reduction seat and extends to the inner cavity of the vibration reduction seat.

As further preferable in the present technical solution: the piston is characterized in that guide rings are arranged on the upper portion of the right side of the outer wall of the shell and on the two sides of the lower portion of the outer wall of the shell, and support frames are fixedly mounted on the outer sides of the upper portion and the lower portion of the outer wall of the right side of the shell, which are located on the guide rings.

As further preferable in the present technical solution: the steel ball is connected with the outer wall of the cam in a rolling manner.

As further preferable in the present technical solution: the top and the bottom of the outer wall of the piston are welded with the inner wall of the first sliding block.

Compared with the prior art, the invention has the beneficial effects that: the invention can effectively reduce the abrasion between the piston and the cam and prolong the service life of the piston and the cam through the design of the piston, the cam and the steel ball, and can effectively reduce the strong vibration and the noise generated when the machine body works through the design of the sliding sleeve, the third sliding rod, the second sliding block, the vibration reduction spring, the vibration reduction seat, the vibration reduction damping, the vibration reduction keel, the rock wool and the sound absorption wool, thereby carrying out secondary vibration reduction and noise absorption.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the construction of the sliding bar assembly of the present invention;

FIG. 4 is a schematic structural view of the damping assembly of the present invention;

fig. 5 is an enlarged schematic view of the region a in fig. 1 according to the present invention.

In the figure: 1. a housing; 2. a piston; 3. a cam; 4. a guide ring; 5. a support frame; 6. an oil inlet; 7. an oil outlet; 8. steel balls; 9. a high pressure spring; 10. a slide bar assembly; 101. a sliding sleeve; 102. a third slide bar; 103. a second slide bar; 104. a second slider; 105. a damping spring; 11. a transverse plate; 12. a vibration reduction assembly; 121. a vibration damping seat; 122. damping vibration; 123. vibration damping keel; 13. a cavity; 14. a first slide bar; 15. a first slider; 16. rock wool; 17. and (5) sound absorption cotton.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.