Double-acting vane pump with high-pressure area loading device

Abstract

The utility model discloses a double-acting vane pump with a high-pressure area loading device, which relates to the technical field of double-acting vane pumps, and comprises a pump body and an end cover arranged at the end part of the pump body, a first oil inlet is arranged at the top of the pump body, the end part of the first oil inlet is communicated with a first oil inlet pipe, and a loading machine shell is arranged on the outer wall of the end cover. An extension rod is fixedly welded to an output shaft in the pump body, the end of the extension rod penetrates out of the pump body and penetrates into the loading machine shell, the top of the loading machine shell is communicated with a second oil inlet, the end of the second oil inlet is communicated with a second oil inlet pipe, and the side wall of the second oil inlet is communicated with an oil guide pipe. According to the loading machine shell, the second oil inlet, the second oil inlet pipe, the oil guide pipe and the auxiliary loading oil inlet mechanism, the loading device and the pump body can be independently and separately arranged, it is guaranteed that oil can stably enter the pump body, meanwhile, the loading assembly can be conveniently disassembled and overhauled, the pump body does not need to be disassembled, and the working efficiency is improved. And the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-acting vane pumps, in particular to a double-acting vane pump with a high-pressure zone loading device. Background Art

[0002] The double-acting vane pump is a commonly used industrial pump with the characteristics of high efficiency and reliability. It can suck in and discharge fluid at the same time. When the pump body is used inside a car, when the generator speed is positive, the pump body speed increases synchronously and a large amount of oil is sucked. Therefore, it is necessary to cooperate with the loading device to stably regulate the high-pressure area of ​​the pump body so that the oil can flow quickly.

[0003] After searching, the patent number CN212337620U discloses a pressure plate and a side plate respectively loaded on the two high-pressure areas of a double-acting vane pump. This device enables the double-acting vane pump to realize two independent double pump functions, so that the oil pump can supply oil to the same system jointly or independently, or supply oil to two separate systems separately.

[0004] However, the loading device is arranged inside the pump body. When the loading component fails, the pump body needs to be disassembled as a whole and the internal loading component needs to be taken out for maintenance, which is time-consuming and labor-intensive, and reduces the use effect of the loading device. Utility Model Content

[0005] In view of the above problems existing in the existing double-acting vane pump with a high-pressure area loading device, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a double-acting vane pump with a high-pressure zone loading device, which solves the problem that the internal loading device of the upper-acting vane pump is enclosed inside the pump body and is not convenient for rapid maintenance.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A double-acting vane pump with a high-pressure area loading device comprises a pump body and an end cover arranged at the end of the pump body, a first oil inlet is opened on the top of the pump body, a first oil inlet pipe is connected to the end of the first oil inlet, a loading casing is arranged on the outer wall of the end cover, an extension rod is welded and fixed to the internal output shaft of the pump body, and the end of the extension rod passes through the pump body and goes deep into the loading casing;

[0009] A second oil inlet is connected to the top of the loading housing, a second oil inlet pipe is connected to the end of the second oil inlet, an oil guide pipe is connected to the side wall of the second oil inlet, the oil guide pipe is connected to the high-pressure area of ​​the pump body, and an auxiliary loading oil inlet mechanism is provided in the second oil inlet.

[0010] Preferably, the auxiliary loading oil inlet mechanism includes an oil guide piston, which is slidably arranged in the second oil inlet and has a piston rod fixedly arranged at the bottom. A motor is fixedly arranged on the outer wall of the loading housing, and the output end of the motor passes through the loading housing and is fixedly arranged with a rotating plate. The outer walls of the rotating plate and the piston rod are both fixedly arranged with connecting rods, and the rod walls of the two connecting rods are jointly rotated to form a connecting plate.

[0011] Preferably, the walls of the second oil inlet pipe and the oil guide pipe are both fixedly sleeved with a liquid one-way valve.

[0012] Preferably, a detection element is fixedly provided on the rod wall of the extension rod, a rotation speed sensor is fixedly provided on the outer wall of the loading housing, and a detection end of the rotation speed sensor extends into the loading housing and is arranged in cooperation with the detection element.

[0013] Furthermore, the motor is electrically connected to the detection element and is arranged in coordination therewith.

[0014] Preferably, the end cover is screwed and fixed to the loading casing by bolts, and a through hole for the extension rod to pass through is provided on the side wall of the loading casing.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model can independently separate the loading device from the pump body through the loading casing, the second oil inlet, the second oil inlet pipe, the oil guide pipe and the auxiliary loading oil inlet mechanism. While ensuring that the oil can stably enter the pump body, the loading component can be conveniently disassembled and repaired without disassembling the pump body, thereby improving the convenience of use of the device.

[0017] 2. The utility model, through the rotation speed sensor, extension rod and detection element, can open the second oil inlet when the rotation speed increases, and cooperate with the first oil inlet to allow a large amount of oil to enter the high-pressure area of ​​the pump body, thereby ensuring that the pump body can operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a side structural diagram of the loading casing and the motor of the utility model;

[0021] Figure 3It is a three-dimensional structural schematic diagram of the rotating plate, connecting rod, connecting rod and piston rod of the utility model.

[0022] Description of reference numerals:

[0023] 1. Pump body; 2. End cover; 3. First oil inlet; 4. First oil inlet pipe; 5. Loading housing; 6. Extension rod; 7. Second oil inlet; 8. Second oil inlet pipe; 9. Oil guide pipe; 10. Oil guide piston; 11. Piston rod; 12. Motor; 13. Rotating plate; 14. Connecting rod; 15. Connecting plate; 16. Liquid one-way valve; 17. Detection element; 18. Speed ​​sensor. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a double-acting vane pump with a high-pressure area loading device.

[0026] Example 1

[0027] The utility model provides Figure 1-3 A double-acting vane pump with a high-pressure area loading device shown in the figure comprises a pump body 1 and an end cover 2 arranged at the end of the pump body 1, a first oil inlet 3 is provided on the top of the pump body 1, a first oil inlet pipe 4 is connected to the end of the first oil inlet 3, a loading casing 5 is provided on the outer wall of the end cover 2, an extension rod 6 is welded and fixed to the internal output shaft of the pump body 1, the end cover 2 is screwed and fixed to the loading casing 5 by bolts, a through hole is provided on the side wall of the loading casing 5 for the extension rod 6 to pass through, and the end of the extension rod 6 passes through the pump body 1 and goes deep into the loading casing 5;

[0028] A second oil inlet 7 is connected to the top of the loading casing 5, a second oil inlet pipe 8 is connected to the end of the second oil inlet 7, an oil guide pipe 9 is connected to the side wall of the second oil inlet 7, a liquid one-way valve 16 is fixedly sleeved on the walls of the second oil inlet pipe 8 and the oil guide pipe 9, the oil guide pipe 9 is connected to the high-pressure area of ​​the pump body 1, an auxiliary loading oil inlet mechanism is arranged in the second oil inlet 7, the auxiliary loading oil inlet mechanism includes an oil guide piston 10, the oil guide piston 10 is slidably arranged in the second oil inlet 7, and a piston rod 11 is fixedly arranged at the bottom, a motor 12 is fixedly arranged on the outer wall of the loading casing 5, the output end of the motor 12 passes through the loading casing 5 and is fixedly arranged with a rotating plate 13, the outer walls of the rotating plate 13 and the piston rod 11 are fixedly arranged with connecting rods 14, and the rod walls of the two connecting rods 14 are jointly rotated and sleeved with a connecting plate 15.

[0029] When the pump body 1 is in normal operation, the oil is transported through the first oil inlet 3 and the first oil inlet pipe 4. When the engine speed increases, the output shaft speed clamp inside the pump body 1 is turned, and the motor 12 is started at this time, and drives the rotating plate 13 to rotate. Under the rotation connection of the two connecting rods 14 and the connecting plate 15, the rotating plate 13 can drive the piston rod 11 to move longitudinally and reciprocatingly during the rotation, so that the oil guide piston 10 can move synchronously. At this time, the oil guide piston 10 moves inside the second oil inlet 7 to adjust the internal pressure of the second oil inlet 7, so that the oil can enter the second oil inlet 7 through the second oil inlet pipe 8, and the oil can be pushed into the oil guide pipe 9 with the cooperation of the two liquid one-way valves 16. At this time, with the cooperation of the oil guide pipe 9 and the first oil inlet 3, a large amount of oil can flow into the high-pressure area of ​​the pump body 1 quickly, ensuring that the oil can be fully utilized.

[0030] Example 2

[0031] Embodiment 2 is based on Embodiment 1, in order to increase the amount of oil introduced to drive the motor 12 to work when the speed of the pump body 1 increases, such as Figure 1 As shown, a detection element 17 is fixedly provided on the rod wall of the extension rod 6, a speed sensor 18 is fixedly provided on the outer wall of the loading housing 5, a detection end of the speed sensor 18 extends into the loading housing 5 and is matched with the detection element 17, and the motor 12 is electrically connected with the detection element 17.

[0032] When the speed of the pump body 1 increases with the engine, the extension rod 6 rotates rapidly. At this time, the detection element 17 attached to the outside of the extension rod 6 rotates rapidly, so that the speed sensor 18 can detect the overall speed of the extension rod 6 and the pump body 1 by cooperating with the detection element 17. When the speed reaches the standard value, the detection signal can be transmitted to the motor 12, so that the motor 12 starts to work and conducts the oil to the outside, ensuring that the high-pressure area inside the pump body 1 can stably pass the oil.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A double-acting vane pump with a high-pressure area loading device, comprising a pump body (1) and an end cover (2) arranged at the end of the pump body (1), characterized in that: The top of the pump body (1) is provided with a first oil inlet (3), the end of the first oil inlet (3) is connected to a first oil inlet pipe (4), the outer wall of the end cover (2) is provided with a loading casing (5), the internal output shaft of the pump body (1) is welded and fixed with an extension rod (6), the end of the extension rod (6) passes through the pump body (1) and penetrates into the loading casing (5); The top of the loading housing (5) is connected to a second oil inlet (7), the end of the second oil inlet (7) is connected to a second oil inlet pipe (8), the side wall of the second oil inlet (7) is connected to an oil guide pipe (9), the oil guide pipe (9) is connected to the high-pressure area of ​​the pump body (1), and an auxiliary loading oil inlet mechanism is provided in the second oil inlet (7).

2. The double-acting vane pump with a high-pressure area loading device according to claim 1, characterized in that: The auxiliary loading oil inlet mechanism comprises an oil guide piston (10), the oil guide piston (10) is slidably arranged in the second oil inlet (7), and a piston rod (11) is fixedly arranged at the bottom, a motor (12) is fixedly arranged on the outer wall of the loading housing (5), the output end of the motor (12) penetrates into the loading housing (5) and is fixedly arranged with a rotating plate (13), the rotating plate (13) and the outer wall of the piston rod (11) are both fixedly arranged with connecting rods (14), and the rod walls of the two connecting rods (14) are rotatably sleeved with a connecting plate (15).

3. The double-acting vane pump with a high-pressure area loading device according to claim 1, characterized in that: The walls of the second oil inlet pipe (8) and the oil guide pipe (9) are both fixedly sleeved with a liquid one-way valve (16).

4. The double-acting vane pump with a high-pressure area loading device according to claim 1, characterized in that: A detection element (17) is fixedly provided on the rod wall of the extension rod (6), a rotation speed sensor (18) is fixedly provided on the outer wall of the loading housing (5), and a detection end of the rotation speed sensor (18) extends into the loading housing (5) and is arranged in cooperation with the detection element (17).

5. The double-acting vane pump with a high-pressure area loading device according to claim 2, characterized in that: The motor (12) is electrically connected to the detection element (17).

6. The double-acting vane pump with a high-pressure area loading device according to claim 1, characterized in that: The end cover (2) is screwed and fixed to the loading housing (5) by means of bolts, and a through hole is provided on the side wall of the loading housing (5) for the extension rod (6) to pass through.

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