Damping groove structure of low-noise vane pump

Abstract

The utility model discloses a low-noise vane pump damping groove structure, which relates to the technical field of vane pumps and comprises a rotor, a plurality of mounting grooves are arranged on the surface of the rotor in a surrounding manner, damping sound-absorbing materials are filled in each mounting groove, a plurality of cover plates are arranged on the surface of the rotor, and the cover plates are arranged on the surface of the rotor. A mounting mechanism is arranged on the side wall of each cover plate, each cover plate is connected with the surface of the rotor through the corresponding mounting mechanism, a through hole is formed in each cover plate, a movable rod is movably arranged in each through hole in a penetrating mode, and a pressing plate is fixedly connected to the end, located in the corresponding mounting groove, of each movable rod; and each pressing plate is in contact connection with the corresponding damping sound-absorbing material. By arranging the cover plate and the pressing plate, the damping sound-absorbing material in each mounting groove can be blocked, the situation that the damping sound-absorbing material moves outwards due to shaking is avoided, and the noise reduction effect of the damping sound-absorbing material is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vane pumps, in particular to a low-noise vane pump damping groove structure. Background Art

[0002] The design and application of the vane pump damping groove has an important influence on the performance and stability of the vane pump. Reasonable damping groove design can effectively reduce the noise of the vane pump, improve the efficiency and reliability of the pump, and extend the service life of the pump. In order to further reduce the noise generated by the vane pump during operation, the existing vane pump damping groove will choose to set damping sound-absorbing materials inside it.

[0003] After searching, the announcement number is: CN212272342U, a vane pump capable of reducing vibration and noise, including a pump body, a pump cover, a rotor, and blades. The rotor is provided with an axial hole and a blade groove. The rotor is also provided with a plurality of axial through holes, each of which is filled with damping and sound-absorbing material and fixed by glue.

[0004] The above technical solution has the following shortcomings:

[0005] The damping sound-absorbing material in the above technical solution is bonded to the inside of the corresponding through hole by glue. Since the glue will penetrate into the inside of the damping sound-absorbing material, it will affect the sound absorption effect of the damping sound-absorbing material and further affect the noise reduction effect. Utility Model Content

[0006] In view of the above problems existing in the existing vane pumps, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a low-noise vane pump damping groove structure, which solves the problem that glue will penetrate into the interior of the damping sound-absorbing material, thereby affecting the sound absorption effect of the damping sound-absorbing material and further affecting the noise reduction effect.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A low-noise vane pump damping groove structure includes a rotor, a plurality of mounting grooves are opened around the surface of the rotor, each of the mounting grooves is filled with damping sound-absorbing material, a plurality of cover plates are arranged on the surface of the rotor, a mounting mechanism is arranged on the side wall of each cover plate, each of the cover plates is connected to the surface of the rotor through a corresponding mounting mechanism, a through hole is opened inside the cover plate, a movable rod is movably penetrated inside the through hole, a pressure plate is fixedly connected to one end of the movable rod located inside the corresponding mounting groove, and each of the pressure plates is in contact with and connected to the corresponding damping sound-absorbing material.

[0010] Preferably, the mounting mechanism comprises a connecting rod, one end of which is fixedly connected to the side wall of the corresponding cover plate, the other end of which is internally provided with a fixing rod movably penetrated, one end of which is fixedly connected to the surface of the rotor, and the other end of which is fixedly sleeved with a baffle on the rod wall.

[0011] Preferably, a spring is fixedly connected between the pressing plate and the cover plate, and two ends of the spring are fixedly connected to the pressing plate and the cover plate respectively.

[0012] Preferably, one end of the movable rod away from the pressure plate is fixedly connected to a driving block.

[0013] Preferably, the spring is a compression spring.

[0014] Preferably, the cover plate and the pressure plate are both grid plates.

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

[0016] The utility model can seal the damping sound-absorbing material inside each installation groove by providing a cover plate and a pressure plate, thereby preventing the damping sound-absorbing material from moving outward due to shaking, thereby ensuring the noise reduction effect of the damping sound-absorbing material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0020] Figure 3 It is a schematic diagram of the side view connection structure between the cover plate, the pressure plate and the drive block of the utility model.

[0021] Description of reference numerals:

[0022] 1. Rotor; 2. Damping sound-absorbing material; 3. Cover plate; 4. Movable rod; 5. Pressure plate; 6. Connecting rod; 7. Fixed rod; 8. Baffle; 9. Spring; 10. Driving block. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model embodiment discloses a low-noise vane pump damping groove structure.

[0025] Embodiment 1

[0026] The utility model provides Figure 1-3 The low-noise vane pump damping groove structure shown includes a rotor 1, a plurality of mounting grooves are opened around the surface of the rotor 1, and the interior of each mounting groove is filled with damping sound-absorbing material 2. A plurality of cover plates 3 are arranged on the surface of the rotor 1, and the side walls of each cover plate 3 are arranged with a mounting mechanism, and each cover plate 3 is connected to the surface of the rotor 1 through the corresponding mounting mechanism, and a through hole is opened inside the cover plate 3, and a movable rod 4 is movably penetrated inside the through hole, and a pressure plate 5 is fixedly connected to one end of the movable rod 4 located inside the corresponding mounting groove, and each pressure plate 5 is in contact with and connected to the corresponding damping sound-absorbing material 2. By using the set cover plate 3 and pressure plate 5, the damping sound-absorbing material 2 inside each mounting groove can be blocked to prevent the damping sound-absorbing material 2 from moving outward due to shaking, thereby ensuring the noise reduction effect of the damping sound-absorbing material 2.

[0027] like Figure 3 As shown, the mounting mechanism includes a connecting rod 6, one end of which is fixedly connected to the side wall of the corresponding cover plate 3, and the other end of the connecting rod 6 is movably penetrated by a fixing rod 7, one end of the fixing rod 7 is fixedly connected to the surface of the rotor 1, and the other end of the fixing rod 7 is fixedly sleeved with a baffle plate 8 on the rod wall. By utilizing the provided fixing rod 7 and baffle plate 8, the connecting rod 6 and the rotor 1 can be connected in rotation, and the connection rod 6 and the fixing rod 7 can be prevented from being separated.

[0028] Embodiment 2

[0029] Based on the first embodiment, Figure 3 As shown, a spring 9 is fixedly connected between the pressure plate 5 and the cover plate 3, and both ends of the spring 9 are fixedly connected to the pressure plate 5 and the cover plate 3 respectively. The spring 9 is a compression spring. By utilizing the set compression spring, the pressure plate 5 can be always squeezed, so that the damping sound-absorbing material 2 can be pressed inside the corresponding installation groove.

[0030] Embodiment 3

[0031] Based on the first embodiment, Figure 1-3 As shown, one end of the movable rod 4 away from the pressure plate 5 is fixedly connected with a driving block 10 , and the movable rod 4 can be driven conveniently by using the provided driving block 10 .

[0032] Embodiment 4

[0033] Based on the first embodiment, Figure 1-3 As shown, the cover plate 3 and the pressure plate 5 are both grid plates. By using the provided grid plates, it is possible to avoid affecting the normal use of the damping and sound-absorbing material 2.

[0034] 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 low-noise vane pump damping groove structure, comprising a rotor (1), characterized in that: The surface of the rotor (1) is provided with a plurality of mounting grooves, each of which is filled with a damping sound-absorbing material (2). The surface of the rotor (1) is provided with a plurality of cover plates (3), each of which is provided with a mounting mechanism on its side wall, each of which is connected to the surface of the rotor (1) via a corresponding mounting mechanism, a through hole is provided inside the cover plate (3), a movable rod (4) is movably inserted inside the through hole, one end of the movable rod (4) located inside the corresponding mounting groove is fixedly connected to a pressing plate (5), and each of the pressing plates (5) is in contact with and connected to the corresponding damping sound-absorbing material (2).

2. The low-noise vane pump damping groove structure according to claim 1, characterized in that: The mounting mechanism comprises a connecting rod (6), one end of the connecting rod (6) is fixedly connected to the side wall of the corresponding cover plate (3), the other end of the connecting rod (6) is internally provided with a fixing rod (7) movably inserted therein, one end of the fixing rod (7) is fixedly connected to the surface of the rotor (1), and the other end of the fixing rod (7) is fixedly sleeved with a baffle (8) on the rod wall.

3. The low-noise vane pump damping groove structure according to claim 1, characterized in that: A spring (9) is fixedly connected between the pressing plate (5) and the cover plate (3), and two ends of the spring (9) are respectively fixedly connected to the pressing plate (5) and the cover plate (3).

4. The low-noise vane pump damping groove structure according to claim 1, characterized in that: One end of the movable rod (4) away from the pressure plate (5) is fixedly connected to a driving block (10).

5. The low-noise vane pump damping groove structure according to claim 3, characterized in that: The spring (9) is a compression spring.

6. The low-noise vane pump damping groove structure according to claim 1, characterized in that: The cover plate (3) and the pressure plate (5) are both grid plates.

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