Modular hydraulic integrated hydraulic pump

Abstract

The utility model discloses a modularization hydraulic integrated hydraulic pump relates to hydraulic pump technical field. The utility model discloses a hydraulic pump structure, including the pump body, the end cover located one end of pump body, the motor located one end of end cover and the output end rotation installation in the inside of end cover, the rotor rotation installation in the inside of pump body, the inner groove of being arranged in the outer wall of rotor and being annular array distribution, the vane of sliding installation in the inside of inner groove, the spring between vane and the inner wall of inner groove, modularization structure, including the installation head of being located one end of vane, the butt joint board no.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump technology, and in particular to a modular integrated hydraulic pump. Background Technology

[0002] Hydraulic pumps are mainly classified into gear pumps, piston pumps, and vane pumps according to their structure. Among them, the vane telescopic hydraulic pump is a type of pump that changes the sealed volume by radially sliding vanes in the rotor slots. The vane telescopic hydraulic pump is also known as a variable vane pump.

[0003] Under the action of centrifugal force and spring force, the blades adhere tightly to the inner wall of the pump body, forming a variable volume chamber as the rotor rotates, achieving oil suction and pressure. The wear on the outer wall and blade tips of the vane pump is significantly higher than other types of pumps. The blade tips are always tightly pressed against the stator ring, resulting in sliding friction during rotation. Especially under high-pressure conditions, the contact stress increases dramatically, and the oil film is easily destroyed by high-pressure shearing, leading to direct metal-to-metal wear, increased clearance between the stator ring and blades, increased internal leakage, and decreased pump volumetric efficiency. Complete replacement is costly, and maintenance costs need to be optimized. Therefore, those skilled in the art have provided a modular integrated hydraulic pump to solve the problems mentioned in the background section. Utility Model Content

[0004] 1. Technical Solution

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a modular integrated hydraulic pump, comprising,

[0007] The hydraulic pump structure includes a pump body, an end cover located at one end of the pump body, a motor located at one end of the end cover and rotatably mounted inside the end cover, a rotor rotatably mounted inside the pump body, an inner groove opened on the outer wall of the rotor and arranged in a ring array, blades slidably mounted inside the inner groove, and a spring located between the blades and the inner wall of the inner groove.

[0008] as well as;

[0009] The modular structure includes a mounting head at one end of the blade, a second mating plate on the outer wall of the mounting head, a first mating plate on the outer wall of the blade, mounting holes symmetrically distributed inside the first mating plate, bolts inserted into the mounting holes, nuts threaded onto the outer wall of the bolts, slots inside the bolts, and inserts inserted into the slots.

[0010] Furthermore, the motor output end is provided with a rectangular slot at one end inside the pump body, and the rotor is provided with rectangular blocks arranged in a rectangular pattern and inserted into the rectangular slot at one end. The spring is provided with a positioning rod and a positioning cylinder that are slidably inserted and installed inside. The end of the positioning cylinder opposite to the positioning rod is connected to the inner wall of the inner slot and the lower end of the mounting head.

[0011] Specifically, after the rectangular slot and the rectangular block are connected, the rotational force in the motor output end is effectively applied to the rotor, driving the blades to rotate.

[0012] Furthermore, both the end cap and the outer wall of the pump casing are fitted with mating rings, and screws arranged in a circular array are rotatably installed inside the mating rings. The pump casing is provided with symmetrically distributed connecting pipes.

[0013] Specifically, the docking ring is fixed with screws, and the end cover is removable, which facilitates docking and disconnection between the rotor and the motor output end. The connecting pipe is the liquid conveying pipeline inside the pump body.

[0014] Furthermore, a fitting groove is provided inside one end of the blade, and a sealing gasket is provided in both the fitting groove and one end of the blade. A fitting block is provided at one end of the mounting head and fitted inside the fitting groove.

[0015] Specifically, the second mating plate is fitted with the first mating plate and the fitting block is fitted with the fitting groove, which increases the force on the mounting head of the blade during rotation, and the sealing gasket improves the sealing performance of the mating joint.

[0016] Furthermore, a support ring is provided at one end of the insert, a guide plate is provided at the lower end of the mating plate, a slide rod is slidably inserted inside the guide plate, and a compression spring connected to the support ring is provided at one end of the slide rod.

[0017] Specifically, the support ring provides elastic support to the compression spring, allowing the insert to be elastically inserted into the slot and locked to the bolt.

[0018] Furthermore, a slide rod connected to the support ring is slidably installed inside the guide plate, and a handle is provided at one end of the slide rod;

[0019] Specifically, the handle facilitates the application of pulling force to the slide bar, allowing it to move inside the slide bar and guide the compression spring during the extension and retraction process, preventing the compression spring from shifting. The insert bar receives lateral support and guidance.

[0020] 2. Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] In this invention, when the motor drives the rotor to rotate, it drives the telescopic blades and mounting head on the outer wall of the rotor to rotate. Under the action of centrifugal force and spring force, the blades are closely attached to the inner wall of the pump body, forming a variable volume cavity as the rotor rotates, realizing oil suction and oil pressure. The blades and mounting head are connected to form a complete telescopic blade structure, which is connected by docking plates one and two on the outer wall. After docking, they are fixed by bolts, and after the bolts are fixed, there are elastic plug-in locking limit to prevent the bolts from loosening during use. After the blades wear out, the mounting head can be directly replaced, avoiding the need for complete rotor disassembly and replacement, reducing maintenance costs and improving maintenance efficiency.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a side sectional three-dimensional structural diagram of the pump body of this utility model;

[0027] Figure 3 This is a front-view three-dimensional structural diagram of the rotor of this utility model;

[0028] Figure 4 This is a schematic diagram of the rotor's main cross-sectional three-dimensional structure of the present invention;

[0029] Figure 5 This is a side view of the three-dimensional structure of the end cap of this utility model;

[0030] Figure 6 This is a three-dimensional sectional view of the bolt of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 100. Hydraulic pump structure; 101. Motor; 102. Pump body; 103. Connecting pipe; 104. Connecting ring; 105. Rectangular block; 106. Rotor; 107. Blade; 108. Inner groove; 109. End cover; 110. Rectangular groove; 111. Spring; 112. Positioning cylinder; 113. Positioning rod;

[0033] 200. Modular structure; 201. Connecting plate one; 202. Mounting head; 203. Connecting plate two; 204. Fitting groove; 205. Fitting block; 206. Mounting hole; 207. Bolt; 208. Nut; 209. Compression spring; 210. Support ring; 211. Guide plate; 212. Handle; 213. Slide rod; 214. Insert; 215. Slot. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] Example 1

[0039] Please see Figure 1-6 As shown, this embodiment is a modular integrated hydraulic pump, including,

[0040] The hydraulic pump structure 100 includes a pump body 102, an end cover 109 located at one end of the pump body 102, a motor 101 located at one end of the end cover 109 and rotatably mounted inside the end cover 109, a rotor 106 rotatably mounted inside the pump body 102, an inner groove 108 formed on the outer wall of the rotor 106 and arranged in a ring array, a blade 107 slidably mounted inside the inner groove 108, and a spring 111 located between the blade 107 and the inner wall of the inner groove 108.

[0041] as well as;

[0042] The modular structure 200 includes a mounting head 202 located at one end of the blade 107, a second docking plate 203 located on the outer wall of the mounting head 202, a first docking plate 201 located on the outer wall of the blade 107, mounting holes 206 symmetrically distributed inside the first docking plate 201, bolts 207 inserted into the mounting holes 206, nuts 208 threaded onto the outer wall of the bolts 207, slots 215 opened inside the bolts 207, and insert strips 214 inserted into the slots 215.

[0043] The output end of the motor 101 is located inside the pump body 102 and has a rectangular slot 110. The rotor 106 has rectangular blocks 105 arranged in a rectangular pattern and inserted into the rectangular slot 110. The spring 111 has a positioning rod 113 and a positioning cylinder 112 that are slidably inserted and installed inside. The positioning cylinder 112 is opposite to the positioning rod 113 and is connected to the inner wall of the inner slot 108 and the lower end of the mounting head 202.

[0044] Both the end cover 109 and the outer wall of the pump casing are fitted with a docking ring 104. The docking ring 104 has screws arranged in a ring array inside, and the pump casing has symmetrically distributed connecting pipes 103.

[0045] A fitting groove 204 is provided inside one end of the blade 107. Both the fitting groove 204 and one end of the blade 107 are provided with sealing gaskets. A fitting block 205 is provided at one end of the mounting head 202 and fitted inside the fitting groove 204.

[0046] One end of the insert 214 is provided with a support ring 210, and the lower end of the connecting plate 201 is provided with a guide plate 211. A slide rod 213 is slidably inserted inside the guide plate 211, and a compression spring 209 connected to the support ring 210 is provided at one end of the slide rod 213.

[0047] Inside the guide plate 211, there is a sliding rod 213 connected to the support ring 210, and one end of the sliding rod 213 is provided with a handle 212.

[0048] The modular structure 200 is used;

[0049] The motor 101 drives the rotor 106 to rotate through the rectangular slot 110 at the output end. The rectangular block 105 transmits torque to ensure synchronous rotation. The rotor 106 drives the blades 107 to extend and retract radially under the action of centrifugal force and spring 111. The mounting head 202 at the head of the blade 107 is tightly attached to the inner wall of the pump body 102 to form a sealed cavity, completing the oil suction, compression, and discharge cycle. The flow rate is adaptively adjusted by the rotor speed 106 and the extension and retraction of the blades 107. When the head of the blade 107 is worn, the handle 212 is gripped to release the locking of the insert 214 to the bolt 207. After removing the bolt 207, the first docking plate 201 and the second docking plate 203 can be separated, and the mounting head 202 module can be replaced separately without disassembling the entire rotor 106.

[0050] The mounting head 202 and blade 107 are rigidly connected to the sealing gasket via the fitting groove 204. The mating plate bolt 207 is fixed to withstand tangential force, and the insert 214 elastically locks to prevent loosening, ensuring structural integrity under high pressure. The split structure means that the wear area of ​​the head accounts for the main wear of the blade 107, allowing for independent replacement while preserving the unworn blade 107 base. The insert 214, pre-tightened by the compression spring 209, achieves one-way self-locking of the bolt 207. Disassembly only requires pulling the handle 212 laterally, shortening maintenance time. The pre-tightening force of the spring 111 dynamically compensates for the wear gap at the head of the blade 107, maintaining oil film thickness and reducing direct metal contact. Only the mounting head needs to be replaced. The mounting head 202 only requires stockpiling the mounting head 202 module. In contrast, replacing the entire set of blades 107 takes a long time and requires stockpiling various specifications of blade 107 assemblies. The modular design confines the wear parts to the mounting head 202, reducing the cost per maintenance. Through the split blade 107 head and the flexible quick-release locking design, the high maintenance cost and low efficiency of the blade 107 pump are solved, reducing the overall cost over the life cycle. It is particularly suitable for intelligent hydraulic systems with high pressure and high frequency variable load, providing a standardized solution for disassembly-free maintenance of hydraulic equipment. At the same time, predictive maintenance can be further realized by adding an integrated wear sensor to the external device.

[0051] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A modular hydraulic integrated pump, characterized in that: include, The hydraulic pump structure (100) includes a pump body (102), an end cover (109) located at one end of the pump body (102), a motor (101) located at one end of the end cover (109) and rotatably mounted inside the end cover (109), a rotor (106) rotatably mounted inside the pump body (102), an inner groove (108) opened on the outer wall of the rotor (106) and arranged in a ring array, a blade (107) slidably mounted inside the inner groove (108), and a spring (111) located between the blade (107) and the inner wall of the inner groove (108). as well as; The modular structure (200) includes a mounting head (202) located at one end of the blade (107), a second docking plate (203) located on the outer wall of the mounting head (202), a first docking plate (201) located on the outer wall of the blade (107), mounting holes (206) symmetrically distributed inside the first docking plate (201), a bolt (207) inserted into the mounting hole (206), a nut (208) threaded onto the outer wall of the bolt (207), a slot (215) opened inside the bolt (207), and an insert (214) inserted into the slot (215).

2. The modular hydraulic integrated pump according to claim 1, characterized in that: The output end of the motor (101) is located inside the pump body (102) and has a rectangular slot (110) at one end. The rotor (106) has rectangular blocks (105) arranged in a rectangular pattern and inserted into the rectangular slot (110) at one end. The spring (111) has a positioning rod (113) and a positioning cylinder (112) that are slidably inserted and installed inside. The positioning cylinder (112) is opposite to the positioning rod (113) and is connected to the inner wall of the inner groove (108) and the lower end of the mounting head (202).

3. The modular hydraulic integrated pump according to claim 1, characterized in that: Both the end cap (109) and the outer wall of the pump casing are fitted with a docking ring (104). The docking ring (104) is rotatably installed with screws arranged in a ring array. The pump casing is provided with symmetrically distributed connecting pipes (103).

4. A modular hydraulic integrated pump according to claim 1, characterized in that: The blade (107) has a fitting groove (204) inside one end, and both the fitting groove (204) and the blade (107) are provided with sealing gaskets. The mounting head (202) has a fitting block (205) that fits into the fitting groove (204) at one end.

5. A modular hydraulic integrated pump according to claim 1, characterized in that: One end of the insert (214) is provided with a support ring (210), and the lower end of the docking plate (201) is provided with a guide plate (211). A slide rod (213) is slidably inserted inside the guide plate (211), and one end of the slide rod (213) is provided with a compression spring (209) connected to the support ring (210).

6. A modular hydraulic integrated pump according to claim 5, characterized in that: The guide plate (211) has a sliding rod (213) that is connected to the support ring (210) slidably installed inside it, and a handle (212) is provided at one end of the sliding rod (213).

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