Hydraulic pump oil cylinder structure

Abstract

The utility model discloses a hydraulic pump oil cylinder structure which comprises an oil cylinder, a front oil storage cavity is formed in the center of the front face of the oil cylinder, a separation plate is arranged on the back face of the front oil storage cavity, a rear oil storage cavity is formed in the back face of the separation plate, a movable cavity is formed in the position, close to the back face, of the center of the oil cylinder, and a hydraulic rod is inserted into the center of the movable cavity. A sliding block is arranged on the outer side, close to the front face, of the hydraulic rod, a cooling water channel is formed in the oil cylinder and close to the outer side, a water inlet is formed in the position, close to the front end, of the cooling water channel, and a water outlet is formed in the position, close to the tail end, of the oil cylinder. According to the hydraulic pump oil cylinder structure, the water inlet and the water outlet are connected with the water pipes, cooling water spirally moves in the cooling water channel, heat generated by friction of the hydraulic rod and the sliding block moving back and forth in the movable cavity is absorbed, and therefore heat in the oil cylinder is reduced, and parts are prevented from being damaged due to too high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulics, in particular to a hydraulic pump cylinder structure. Background Art

[0002] A cylinder generally refers to a hydraulic cylinder, which is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. Cylinders are often used in mechanical operations such as jacking and extrusion. For example, prior art: CN209800426U, a cylinder, includes a cylinder body, the top and bottom of the cylinder body are fixedly connected to a fitting block, the top of the cylinder body is fixedly connected to a connecting block, the front of the cylinder body is fixedly connected to a slide bar, the slide bar has a fixing hole formed therein, the outside of the cylinder body is sheathed with a fixing block, and the fixing block has a movable cavity formed therein.

[0003] There is also existing technology:

[0004] CN219865706U, a column cylinder;

[0005] CN207961126U, a dual-axis oil cylinder.

[0006] Most of the hydraulic pump cylinder structures mentioned in the prior art do not have a cooling structure. After long-term use, frequent friction will cause the temperature of the internal components to rise. The temperature cannot be dissipated and will cause damage to the structure. In severe cases, the grease will ignite and cause an explosion. Utility Model Content

[0007] The purpose of the present utility model is to provide a hydraulic pump cylinder structure to solve the problems raised in the above background technology.

[0008] and a tube connecting the discharging opening of the oil pump with the help of the pump, and a tube connecting the discharging opening of the oil pump with the help of the pump, wherein the oil pumping station is connected with the oil pumping station to the oil pump outlet.

[0009] Preferably, a cooling water channel is opened inside the oil cylinder near the outside, the cooling water channel is provided with a water inlet near the front end of the oil cylinder, and the cooling water channel is provided with a water outlet near the end of the oil cylinder.

[0010] Preferably, the cooling water channel is a spiral structure.

[0011] Preferably, the slider is provided with a sealing ring where it contacts the inner wall of the active cavity.

[0012] Preferably, the water inlet needs to be arranged upward, and the water outlet needs to be arranged downward.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The hydraulic pump cylinder structure is connected to water pipes at the water inlet and outlet. The cooling water moves spirally in the cooling water channel, absorbing the heat generated by the friction of the hydraulic rod and slider moving back and forth in the active cavity, thereby reducing the heat inside the cylinder to prevent excessive temperature from damaging parts.

[0015] 2. The hydraulic pump cylinder structure has an oil guide pipe connected to an external hydraulic oil device. The front oil storage chamber in the cylinder is filled with oil, and the hydraulic oil passes through the isolation plate into the rear oil storage chamber, pushing the hydraulic rod and the slider to slide forward. The hydraulic rod rises from the cylinder and passes through the rear baffle and rear guard plate to achieve length adjustment of the hydraulic assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a longitudinal sectional view of the structure of the utility model;

[0018] Figure 3 This is a 3D cross-sectional view of the structure of the utility model.

[0019] In the figure: 1. Cylinder; 2. Front guard plate; 3. Front baffle; 4. Rear baffle; 5. Rear guard plate; 6. Support rod; 7. Oil guide pipe; 8. Front oil storage chamber; 9. Isolation plate; 10. Rear oil storage chamber; 11. Hydraulic rod; 12. Slider; 13. Sealing ring; 14. Movable chamber; 15. Cooling water channel; 16. Water inlet; 17. Water outlet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: See Figure 1 , the utility model provides a technical solution: a hydraulic pump cylinder structure.

[0022] Among them, a front baffle 3 is provided at the front end of the cylinder 1, a rear baffle 4 is provided on the back of the cylinder 1, a front guard plate 2 is provided on the front of the front baffle 3, and a rear guard plate 5 is provided on the back of the rear baffle 4. Support rods 6 are inserted at the four corners of the front guard plate 2, the front baffle 3, the rear baffle 4 and the rear guard plate 5. An oil guide pipe 7 is provided between the front baffle 3 and the front guard plate 2. A front oil storage chamber 8 is opened at the center of the front of the cylinder 1, and the tail end of the oil guide pipe 7 is connected to the position of the front oil storage chamber 8. An isolation plate 9 is provided on the back of the front oil storage chamber 8, and a rear oil storage chamber 10 is provided on the back of the isolation plate 9. A hole is opened on the surface of the isolation plate 9, and an active chamber 14 is opened at the center of the cylinder 1 near the back. A hydraulic rod 11 is inserted at the center of the active chamber 14, and a slider 12 is provided near the outside of the front of the hydraulic rod 11. The surface of the slider 12 is tightly attached to the inner wall of the active chamber 14, and the front end of the hydraulic rod 11 fits inside the rear oil storage chamber 10.

[0023] In this embodiment, the support rod 6 connects the front guard plate 2, the front baffle 3, the rear baffle 4 and the rear guard plate 5, and the oil cylinder 1 is arranged between the front baffle 3 and the rear baffle 4. Holes are opened in the center of the four plates. The oil guide pipe 7 passes through the center hole of the front guard plate 2 and is connected to the external hydraulic oil equipment. It passes through the oil guide pipe 7 and enters the front oil storage chamber 8, and then passes through the hole on the isolation plate 9 to enter the rear oil storage chamber 10. Continuous pressure pushes the end of the hydraulic rod 11 of the active chamber 14 connected to the rear oil storage chamber 10, and then pushes the hydraulic rod 11 and the slider 12 to slide in the active chamber 14. The hydraulic rod 11 extends to the end, passes through the rear baffle 4 and the rear guard plate 5, and blocks are provided at both ends of the active chamber 14 to prevent the slider 12 from falling off from the active chamber 14.

[0024] A cooling water channel 15 is provided inside the oil cylinder 1 near the outside. The cooling water channel 15 is provided with a water inlet 16 near the front end of the oil cylinder 1 and a water outlet 17 near the end of the oil cylinder 1 .

[0025] In this embodiment, the water inlet 16 is connected to an external water inlet pipe, and the water outlet 17 is connected to an external water outlet pipe. Cooling water enters the cooling water channel 15 from the water inlet 16, absorbs the heat generated by the movement friction of the slider 12 and the hydraulic rod 11, thereby reducing the temperature of the entire cylinder 1, cooling the cylinder 1 and preventing overheating.

[0026] The cooling water channel 15 is a spiral structure.

[0027] In this embodiment, the spiral structure maximizes the length of the cooling water channel 15 and is arranged in a rotation outside the active cavity 14. When the heat generated by the friction between the slider 12 and the active cavity 14 is dissipated outward, it can be quickly absorbed by the cooling water in the cooling water channel 15, and the overall temperature is quickly reduced without heat accumulation.

[0028] The slider 12 is provided with a sealing ring 13 at the position where it contacts the inner wall of the movable cavity 14 .

[0029] In this embodiment, the sealing ring 13 is used to prevent hydraulic oil from entering the movable chamber 14 at the rear end of the slider 12 from the front end of the slider 12 in the movable chamber 14. If the hydraulic strength at both ends is consistent, the slider 12 and the hydraulic rod 11 will be unable to move, and the cylinder 1 will leak oil and be damaged.

[0030] The water inlet 16 needs to be arranged upward, and the water outlet 17 needs to be arranged downward.

[0031] In this embodiment, in the absence of a water pump, the coolant flows from the high water inlet 16 to the low water outlet 17 by gravity, so that the cooling water continues to flow and the temperature continues to drop.

[0032] Working principle: The oil guide pipe 7 needs to be connected to an external hydraulic oil device. The hydraulic oil enters the front oil storage chamber 8 in the cylinder 1 through the oil guide pipe 7 for filling. The pressurized hydraulic oil passes through the two connecting holes on the isolation plate 9 and enters the rear oil storage chamber 10, pushing the hydraulic rod 11 and the slider 12 to slide forward. The hydraulic rod 11 rises from the cylinder 1 and passes through the rear baffle 4 and the rear guard plate 5 to achieve length adjustment of the hydraulic component. The water inlet 16 is connected to an external water inlet pipe, and the water outlet 17 is connected to an external water outlet pipe. Cooling water enters the cooling water channel 15 from the water inlet 16, absorbs the heat generated by the movement friction of the slider 12 and the hydraulic rod 11, thereby reducing the temperature of the entire cylinder 1, cooling the cylinder 1 and preventing overheating.

[0033] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pump cylinder structure, comprising a cylinder (1), characterized in that: The front end of the oil cylinder (1) is provided with a front baffle (3), the back of the oil cylinder (1) is provided with a rear baffle (4), the front of the front baffle (3) is provided with a front guard plate (2), the back of the rear baffle (4) is provided with a rear guard plate (5), the four corners of the front guard plate (2), the front baffle (3), the rear baffle (4) and the rear guard plate (5) are plugged with support rods (6), an oil guide pipe (7) is provided between the front baffle (3) and the front guard plate (2), a front oil storage chamber (8) is opened at the center of the front of the oil cylinder (1), and the tail of the oil guide pipe (7) is connected to the front oil storage chamber. (8), an isolation plate (9) is provided on the back of the front oil storage chamber (8), a rear oil storage chamber (10) is provided on the back of the isolation plate (9), a hole is provided on the surface of the isolation plate (9), a movable chamber (14) is provided near the back at the center of the oil cylinder (1), a hydraulic rod (11) is inserted at the center of the movable chamber (14), a slider (12) is provided near the outside of the front of the hydraulic rod (11), the surface of the slider (12) is tightly attached to the inner wall of the movable chamber (14), and the front end of the hydraulic rod (11) is attached to the inside of the rear oil storage chamber (10).

2. A hydraulic pump cylinder structure according to claim 1, characterized in that: A cooling water channel (15) is provided inside the oil cylinder (1) near the outside, and the cooling water channel (15) is provided with a water inlet (16) near the front end of the oil cylinder (1), and a water outlet (17) near the end of the oil cylinder (1).

3. The hydraulic pump cylinder structure according to claim 2, characterized in that: The cooling water channel (15) is a spiral structure.

4. The hydraulic pump cylinder structure according to claim 1, characterized in that: The slider (12) is provided with a sealing ring (13) at the inner wall of the contact movable cavity (14).

5. The hydraulic pump cylinder structure according to claim 2, characterized in that: The water inlet (16) needs to be arranged upward, and the water outlet (17) needs to be arranged downward.

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