Limiting hemisphere detachable type plunger pump swash plate

Abstract

A plunger pump swash plate with a detachable limiting hemisphere comprises a swash plate body, a through hole is formed in the bottom of a ball socket, used for being connected with the limiting hemisphere, of the swash plate body, a sealing spring seat is arranged in the through hole, and a hemisphere reset spring is arranged between the sealing spring seat and the limiting hemisphere. According to the plunger pump swash plate with the detachable limiting hemisphere, the structure of the swash plate is optimized, the through hole is formed in the bottom of the swash plate, the swash plate is sealed through the sealing spring seat, the sealing spring seat can effectively fix the position of the spring to protect the spring, in addition, the limiting hemisphere can be conveniently detached through the detaching tool, the replaceability of the limiting hemisphere is improved, and the service life of the limiting hemisphere is prolonged. The loss rate of parts is reduced; and the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically a detachable hemispherical plunger pump swashplate. Background Technology

[0002] A piston pump is a crucial component in a hydraulic system, providing hydraulic power to the actuators. Driven by an electric motor, the piston reciprocates within a cylinder, delivering a specific flow rate of hydraulic oil to the actuator, allowing it to convert the pressure energy of the fluid into mechanical energy. Piston pumps are generally classified into fixed-displacement (DC) and variable-displacement (FD) pumps. Currently, FD pumps are typically variable axial piston pumps, meaning their input flow rate is variable; the flow rate is lower at higher pressures and higher at lower pressures.

[0003] Swashplate piston pumps can change the pump's output flow rate by altering the swashplate angle to meet the actuator's requirements. In practical applications, the piston pump's displacement constantly changes, which may lead to damage to the limit hemisphere or return spring. However, the limit hemisphere is difficult to disassemble, and in most cases, destructive disassembly is necessary, resulting in high repair or replacement costs. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a simple and effective detachable hemispherical plunger pump swashplate.

[0005] This utility model is achieved by the following technical solution: a detachable hemispherical plunger pump swashplate, including a swashplate, wherein a through hole is opened at the bottom of the ball socket on the swashplate for connecting the limiting hemispherical, a sealing spring seat is provided in the through hole, and a hemispherical return spring is provided between the sealing spring seat and the limiting hemispherical.

[0006] Furthermore, the swash plate is provided with a boss, and the through hole is opened on the boss.

[0007] The boss is located on the side of the swashplate away from the ball socket.

[0008] The through hole is an angled through hole with a diameter of 5mm.

[0009] The direction of the through hole is consistent with the direction of the hemispherical return spring.

[0010] One end of the sealing spring seat is engaged with a hemispherical return spring, and the other end of the sealing spring seat is provided with a sealing ring.

[0011] The sealing ring is a D-type sealing ring.

[0012] The present invention has the following advantages: The detachable plunger pump swashplate of the limiting hemisphere of the present invention optimizes the structure of the swashplate. A through hole is opened at the bottom of the swashplate and sealed by a sealing spring seat. The sealing spring seat can effectively fix the position of the spring and protect the spring. In addition, the limiting hemisphere can be easily disassembled by disassembling the tooling, which improves the replaceability of the limiting hemisphere, reduces the wear rate of parts and improves the assembly efficiency. Attached Figure Description

[0013] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Swashplate, 2. Limiting hemisphere, 3. Hemisphere return spring, 4. Sealing spring seat.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1 The swashplate of a detachable hemispherical plunger pump, as shown, includes a swashplate 1. A through hole is formed at the bottom of a socket on the swashplate 1 for connecting a limiting hemispherical 2. A sealing spring seat 4 is provided within the through hole, and a hemispherical return spring 3 is provided between the sealing spring seat 4 and the limiting hemispherical 2. In this detachable hemispherical plunger pump swashplate, a limiting hemispherical is placed within a socket on the swashplate. A through hole is formed at the bottom of the socket, and a sealing spring seat is provided within the through hole. The sealing spring seat works in conjunction with the hemispherical return spring. One end of the hemispherical return spring abuts against the sealing spring seat, and the other end engages with the limiting hemispherical. During use, the limiting hemispherical can be removed and the hemispherical return spring replaced through the through hole, greatly improving the convenience of equipment use.

[0022] like Figure 1 The diagram illustrates a detachable hemispherical plunger pump swashplate. The swashplate 1 has a boss, and a through hole is located on the boss. The boss is positioned on the side of the swashplate 1 away from the ball socket. The boss on the back of the ball socket of this invention, with the through hole located on the boss, facilitates increasing the stroke of the through hole, allows for the installation of a sealing spring seat, and increases the strength of the through hole.

[0023] like Figure 1 The illustration shows a detachable hemispherical plunger pump swashplate with a 5mm diameter oblique through-hole. The direction of the through-hole is consistent with the direction of the hemispherical return spring 3. This invention features a 5mm diameter oblique through-hole machined at the bottom of the swashplate's ball socket, aligned with the spring's installation direction. A positioning sealing spring seat is installed on this oblique hole. This design facilitates the movement of the hemispherical return spring and allows adjustment of the spring's movement distance by adjusting the position of the sealing spring seat. This enables adjustment of the spring force as needed, meeting the return force requirements of the detachable hemispherical plunger pump during use. During operation, the detachable hemispherical plunger pump can be replaced using appropriate tooling based on the diameter and depth of the oblique hole.

[0024] like Figure 1The illustration shows a detachable hemispherical plunger pump swashplate. One end of the sealing spring seat 4 engages with a hemispherical return spring 3, and the other end of the sealing spring seat 4 is equipped with a sealing ring. The sealing ring is a D-type sealing ring. The sealing spring seat of this invention uses a D-type ring at one end to ensure sealing, and the other end engages with the hemispherical return spring, which can position and protect the hemispherical return spring.

[0025] This utility model relates to a detachable hemispherical plunger pump swashplate. During manufacturing, a slanted through hole is first drilled at the bottom of the swashplate's ball socket, aligned with the spring's tilt direction. A positioning sealing spring seat is installed inside the through hole. After the sealing spring seat is inserted into the slanted hole, one end is sealed with a D-ring, and the other end mates with the hemispherical return spring. The limiting hemisphere is then inserted into the ball socket and engages with the hemispherical return spring. When it is necessary to replace the limiting hemisphere or the hemispherical return spring, the limiting hemisphere can be easily and quickly ejected using a tool through a pre-drilled hole at the bottom of the swashplate, making the process convenient and easy to operate.

[0026] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0027] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A detachable hemispherical plunger pump swashplate, characterized in that: Includes a swash plate (1), on which a through hole is opened at the bottom of a ball socket for connecting a limiting hemisphere (2), and a sealing spring seat (4) is provided in the through hole, and a hemisphere return spring (3) is provided between the sealing spring seat (4) and the limiting hemisphere (2).

2. The detachable hemispherical plunger pump swashplate as described in claim 1, characterized in that: The swash plate (1) is provided with a boss, and the through hole is opened on the boss.

3. The detachable hemispherical plunger pump swashplate as described in claim 2, characterized in that: The boss is located on the side of the swashplate (1) away from the ball socket.

4. The detachable hemispherical plunger pump swashplate as described in claim 1, characterized in that: The through hole is an angled through hole with a diameter of 5mm.

5. The swashplate of a detachable hemispherical plunger pump as described in claim 4, characterized in that: The direction of the through hole is consistent with the direction of the hemispherical return spring (3).

6. The swashplate of a detachable hemispherical plunger pump as described in claim 1, characterized in that: One end of the sealing spring seat (4) is engaged with the hemispherical return spring (3), and the other end of the sealing spring seat (4) is provided with a sealing ring.

7. The swashplate of a detachable hemispherical plunger pump as described in claim 6, characterized in that: The sealing ring is a D-type sealing ring.

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