Energy-saving plunger pump oil distribution adjusting mechanism and plunger pump

Abstract

The utility model relates to the technical field of plunger pumps, and discloses an energy-saving plunger pump oil distribution adjusting mechanism and a plunger pump, the energy-saving plunger pump oil distribution adjusting mechanism comprises an oil distribution disc body, the oil distribution disc body is provided with an oil outlet groove and an oil suction groove, and the oil distribution disc body is further provided with a ring-shaped support. The annular support is rotatably arranged on the oil distribution disc body with the circle center of the annular support as the axis, and the oil outlet groove and the oil suction groove are located in the circle of the annular support. The oil suction groove is of an arc kidney-shaped hole structure, a sliding block connected with the annular support is embedded in the oil suction groove, and the sliding block divides the oil suction groove into a main oil suction groove body and an auxiliary oil suction groove body. According to the plunger pump, the energy-saving plunger pump oil distribution adjusting mechanism is adopted, proportional distribution of the oil suction port of the oil distribution disc can be adjusted according to different working conditions, and the best energy-saving effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of plunger pump technology, specifically to an energy-saving plunger pump oil distribution adjustment mechanism and a plunger pump. Background Technology

[0002] Piston pumps are an important component of hydraulic systems, widely used in applications requiring high pressure, high flow rates, and flow regulation, such as hydraulic presses, construction machinery, and ships. They rely on the reciprocating motion of pistons within a cylinder to change the volume of the sealed working chamber, thus achieving oil suction and pressure. The hydraulic circuit system in piston pump applications includes... Figure 1 As shown, arrow 1 indicates the oil path through which the plunger pump draws oil from the tank; arrow 2 indicates the oil path through which the plunger pump pumps oil to the load; and arrow 3 indicates the oil path for recovering the load's kinetic energy. This recovered kinetic energy oil typically flows back to the tank. How to recover and reuse the energy generated by the recovered kinetic energy oil from the load using a plunger pump to achieve energy-saving hydraulics remains a key research focus. Summary of the Invention

[0003] In order to recover and reuse the energy generated by the energy recovery oil from the load kinetic energy through the plunger pump, this utility model provides an energy-saving plunger pump oil distribution adjustment mechanism to achieve energy saving and reduce the cost of the plunger pump.

[0004] To achieve the above objectives, this utility model provides an energy-saving plunger pump oil distribution adjustment mechanism, including an oil distribution plate body. The oil distribution plate body is provided with an oil outlet groove and an oil suction groove. A circular bracket is also installed on the oil distribution plate body. The circular bracket is rotatably mounted on the oil distribution plate body with its center as the axis. The oil outlet groove and the oil suction groove are located inside the circle of the circular bracket.

[0005] The oil suction groove is an arc-shaped waist-shaped hole structure. A slider connected to the annular bracket is embedded in the oil suction groove. The slider divides the oil suction groove into two parts: a main oil suction groove and a secondary oil suction groove.

[0006] The oil distribution plate body is provided with a power transmission mechanism on its exterior. The power transmission mechanism is connected to the annular bracket to drive the annular bracket to rotate on the oil distribution plate body, thereby driving the slider to slide in the oil suction groove to adjust the opening ratio of the main oil suction groove and the auxiliary oil suction groove.

[0007] As a further preferred technical solution of this utility model, the surface of the oil distribution plate body is provided with an annular groove that is adapted to the annular bracket, and the annular bracket is disposed in the annular groove.

[0008] As a further preferred technical solution of this utility model, the annular bracket is provided with a connecting rod, which extends to the outside of the oil distribution plate body and is connected to the power transmission mechanism.

[0009] As a further preferred technical solution of this utility model, a limiting groove is formed on the outer arc side of the oil suction groove on the oil distribution plate body, the connecting rod is located in the limiting groove, and the two ends of the limiting groove are respectively formed with a stop part that cooperates with the connecting rod to limit the rotation angle of the annular bracket on the oil distribution plate body.

[0010] As a further preferred technical solution of this utility model, the outer arc circumference of the annular bracket is provided with a toothed outer gear ring portion, the power transmission mechanism is connected to a rack, the rack meshes with the outer gear ring portion, and the power transmission mechanism drives the annular bracket to rotate on the oil distribution plate body through the rack.

[0011] As a further preferred technical solution of this utility model, the oil distribution plate body is also provided with a plurality of positioning pin holes.

[0012] As a further preferred technical solution of this utility model, the oil outlet groove is an arc-shaped waist-shaped hole structure, and the oil outlet groove and the oil suction groove are arranged in a left-right distribution.

[0013] According to another aspect of the present invention, the present invention also provides a plunger pump, which includes the above-described energy-saving plunger pump oil distribution regulating mechanism.

[0014] Compared with the prior art, the energy-saving plunger pump oil distribution adjustment mechanism and plunger pump of this utility model can achieve the following beneficial effects:

[0015] 1) Traditional oil distribution plates can be modified to simplify the structure of the energy recovery system and reduce the cost of plunger pumps;

[0016] 2) By designing an adaptive control system that works in conjunction with the oil distribution adjustment mechanism of the energy-saving plunger pump, the proportion of the oil inlet of the oil distribution plate can be adjusted according to different working conditions. The energy released by the oil can be recovered by making reasonable use of the energy of the load kinetic energy, thereby offsetting the pump's own losses. Compared with traditional plunger pumps, it can save more than 50% of the input energy, thus having a good energy-saving effect. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a diagram of the oil circuit system of a traditional plunger pump.

[0019] Figure 2 This is an exploded view of the oil distribution adjustment mechanism of the energy-saving plunger pump in Embodiment 1 of this utility model.

[0020] Figure 3 This is a perspective view of the oil distribution adjustment mechanism of the energy-saving plunger pump in Embodiment 1 of this utility model.

[0021] In the diagram: 101, oil distribution plate body; 102, oil outlet groove; 103, oil suction groove; 1031, main oil suction groove; 1032, auxiliary oil suction groove; 104, slider; 105, annular bracket; 106, connecting rod.

[0022] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Terms such as "upper," "lower," "left," "right," "middle," and "one" used in the preferred embodiments are merely for clarity of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of the present invention.

[0024] This invention simplifies the structure of the energy recovery system by modifying the distribution plate of an existing plunger pump, thereby enabling the recovery and reuse of energy generated by the energy recovery oil that generates the kinetic energy of the load.

[0025] Example 1

[0026] like Figure 2 and Figure 3 As shown, this embodiment provides an energy-saving plunger pump oil distribution adjustment mechanism, including an oil distribution plate body 101, an annular bracket 105, a slider 104, and a power transmission mechanism.

[0027] The oil distribution plate body 101 has an annular groove on its surface that is adapted to the annular bracket 105. The annular bracket 105 is set in the annular groove and can rotate on the oil distribution plate body 101 with its center as the axis.

[0028] The oil distribution plate body 101 has an oil outlet groove 102 and an oil suction groove 103, which are located within the circle of the annular support 105. Both the oil suction groove 103 and the oil outlet groove 102 are arc-shaped waist-shaped hole structures, distributed to the left and right with the center of the annular support 105 as the center. The oil suction groove 103 is embedded with a slider 104 connected to the annular support 105. The slider 104 divides the oil suction groove 103 into two parts: a main oil suction groove 1031 and a secondary oil suction groove 1032. The main oil suction groove 1031 is used for the plunger pump to normally draw oil from the oil tank, the secondary oil suction groove 1032 is used to absorb the energy of the load's kinetic energy to recover the oil, and the oil outlet groove 102 is used for the plunger pump to output the oil from the oil tank and the recovered oil. Therefore, the upper cover of the plunger pump connected to the oil distribution plate body 101 is equipped with three oil passages corresponding to the main oil suction groove 1031, the auxiliary oil suction groove 1032 and the oil outlet groove 102.

[0029] A connecting rod 106 is provided on the annular bracket 105. The connecting rod 106 extends to the outside of the oil distribution plate body 101 and is connected to a power transmission mechanism located outside the oil distribution plate body 101. The power transmission mechanism can be a motor, cylinder, or hydraulic cylinder. The power transmission mechanism drives the annular bracket 105 to rotate on the oil distribution plate body 101, thereby driving the slider 104 to slide within the oil suction groove 103 to adjust the opening ratio of the main oil suction groove 1031 and the auxiliary oil suction groove 1032, thereby changing the ratio of the normal oil suction volume from the oil tank to the energy recovery volume of the oil suction groove 103.

[0030] In one specific embodiment, in order to limit the sliding range of the slider 104 in the oil suction groove 103, a limiting groove is formed on the outer arc side of the oil distribution plate body 101. The connecting rod 106 is located in the limiting groove, and the two ends of the limiting groove are respectively formed with a stop portion that cooperates with the connecting rod 106 to limit the rotation angle of the annular bracket 105 on the oil distribution plate body 101.

[0031] In another specific embodiment, the oil distribution plate body 101 is also provided with a plurality of positioning pin holes for easy installation and positioning.

[0032] Example 2

[0033] This embodiment provides an energy-saving plunger pump oil distribution adjustment mechanism, which differs from Embodiment 1 only in the structure of the transmission part between the annular bracket 105 and the power transmission mechanism. Specifically, the annular bracket 105 has a toothed outer gear ring on its outer arc circumference. The power transmission mechanism is connected to a rack, which meshes with the outer gear ring. The power transmission mechanism moves along the length of the rack, thereby driving the annular bracket 105 to rotate on the oil distribution plate body 101, and thus driving the slider 104 to move.

[0034] Although specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and various changes or modifications can be made to these embodiments without departing from the principles and essence of the present invention. The scope of protection of the present invention is defined only by the appended claims.

Claims

1. An energy-saving plunger pump oil distribution regulating mechanism, comprising an oil distribution plate body, wherein the oil distribution plate body is provided with an oil outlet groove and an oil suction groove, characterized in that, The oil distribution plate body is also equipped with a circular bracket, which is rotatably mounted on the oil distribution plate body with its center as the axis. The oil outlet groove and the oil suction groove are located inside the circle of the circular bracket. The oil suction groove is an arc-shaped waist-shaped hole structure. A slider connected to the annular bracket is embedded in the oil suction groove. The slider divides the oil suction groove into two parts: a main oil suction groove and a secondary oil suction groove. The oil distribution plate body is provided with a power transmission mechanism on its exterior. The power transmission mechanism is connected to the annular bracket to drive the annular bracket to rotate on the oil distribution plate body, thereby driving the slider to slide in the oil suction groove to adjust the opening ratio of the main oil suction groove and the auxiliary oil suction groove.

2. The energy-saving plunger pump oil distribution regulating mechanism according to claim 1, characterized in that, The oil distribution plate body has an annular groove on its surface that is adapted to the annular bracket, and the annular bracket is disposed in the annular groove.

3. The energy-saving plunger pump oil distribution regulating mechanism according to claim 1, characterized in that, The annular bracket is provided with a connecting rod, which extends to the outside of the oil distribution plate body and is connected to the power transmission mechanism.

4. The energy-saving plunger pump oil distribution regulating mechanism according to claim 3, characterized in that, A limiting groove is formed on the outer arc side of the oil suction groove on the oil distribution plate body. The connecting rod is located in the limiting groove. Both ends of the limiting groove form a stop part that cooperates with the connecting rod to limit the rotation angle of the annular bracket on the oil distribution plate body.

5. The energy-saving plunger pump oil distribution regulating mechanism according to claim 1, characterized in that, The annular bracket has a toothed outer gear ring on its outer arc circumference. The power transmission mechanism is connected to a rack, which meshes with the outer gear ring. The power transmission mechanism drives the annular bracket to rotate on the oil distribution plate body through the rack.

6. The energy-saving plunger pump oil distribution regulating mechanism according to claim 1, characterized in that, The oil distribution plate body is also provided with multiple positioning pin holes.

7. The energy-saving plunger pump oil distribution regulating mechanism according to claim 1, characterized in that, The oil outlet groove is an arc-shaped waist-shaped hole structure, and the oil outlet groove and the oil suction groove are arranged side by side.

8. A plunger pump, characterized in that: Includes the energy-saving plunger pump oil distribution regulating mechanism as described in any one of claims 1-7.

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