Rotor pump protective cover

Abstract

The utility model relates to the technical field of rotor pumps, discloses a rotor pump protective cover, and solves the problem that the working environment is affected as the rotor pump protective cover cannot prevent noise transmission during working. Through the damping layer, the reinforcing layer, the sound absorption layer, the middle layer and the wear-resistant layer, noise generated by external equipment can make contact with the damping layer on one side of the cover plate, so that resonance is effectively restrained, noise amplification is avoided, then when noise is generated during operation of the pump body, the reinforcing layer can prevent impact force generated during installation and working from damaging other material layers, and the service life of the pump body is prolonged. Then sound waves are jointly absorbed by the sound absorption layer and the middle layer, a certain heat insulation effect can be achieved, heat of a pump body is prevented from being transmitted to the outside of the cover plate, meanwhile, deformation caused by the temperature difference inside and outside the cover plate can be relieved, in addition, the wear-resisting layer can prolong the service life of the cover plate, and the situation that the sound absorption effect is affected due to deformation of the cover plate is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rotor pump technology, specifically a rotor pump protective cover. Background Technology

[0002] A rotary pump is a device that changes the working volume by the relative movement between a rotor and a pump body, thereby achieving liquid transfer. It is a positive displacement pump with positive displacement characteristics; the flow rate does not change with back pressure, making it suitable for applications requiring metering.

[0003] Chinese Patent Publication No. CN217144734U discloses a protective cover for a rotor pump, which includes a cover plate with side grooves and outer grooves on both sides and at the top and bottom ends, respectively. The side grooves and outer grooves are provided with multiple fixing holes that penetrate the cover plate. A sealing gasket is attached to the surface of the cover plate on the other side of the fixing holes through the groove. A rotating groove is provided in the middle of the rear side of the cover plate, and a shaft groove is provided on the inner side of the rotating groove.

[0004] The aforementioned patent describes a protective cover for a rotor pump, which solves the shortcomings of existing cover structures that lack internal sealing structures and require additional installation structures. However, during rotor pump operation, the high-speed rotation of the rotor and the friction and collision with related components generate a lot of noise, which seriously affects the working environment. Utility Model Content

[0005] The purpose of this utility model is to provide a protective cover for a rotor pump. By using this device, the problem that existing rotor pump protective covers cannot prevent the transmission of noise during operation, thus affecting the working environment is solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotor pump protective cover, comprising...

[0007] The cover plate has positioning blocks on its outer surface; one side of the cover plate has a sound-absorbing component for reducing noise transmission.

[0008] A center plate is located on one side of the cover plate, and a support rod is provided between the center plate and the cover plate;

[0009] The positioning blocks are all internally threaded with bolts;

[0010] The sound-absorbing component includes a damping layer disposed on one side of the cover plate and a wear-resistant layer disposed on the other side of the cover plate. An intermediate layer is disposed on one side of the wear-resistant layer, a sound-absorbing layer is disposed on one side of the intermediate layer, and a reinforcing layer is disposed on one side of the sound-absorbing layer.

[0011] Furthermore, the damping layer is a component made of rubber-based damping coating.

[0012] Furthermore, the wear-resistant layer is a component made of polyurethane.

[0013] Furthermore, the intermediate layer is a component made of glass wool.

[0014] Furthermore, the sound-absorbing layer is a component made of nitrile rubber.

[0015] Furthermore, the reinforcing layer is a component made of carbon fiber.

[0016] Furthermore, a sealing component for enhancing the sealing effect is provided on one side of the cover plate. The sealing component includes a fluororubber skirt on one side of the positioning block and a sealing gasket on one side of the cover plate. A shaft groove is provided on one side of the cover plate, and a sealing sleeve is provided on the inner wall of the shaft groove. An anti-loosening gasket is provided on the outer surface of the bolt. A waterproof layer is provided on the outer surface of the cover plate. The waterproof layer is a component made of polytetrafluoroethylene microporous membrane.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention proposes a protective cover for a rotor pump. Existing rotor pump protective covers fail to prevent noise transmission during operation, thus affecting the working environment. This invention, however, utilizes a damping layer, a reinforcing layer, a sound-absorbing layer, an intermediate layer, and a wear-resistant layer. Noise generated by external equipment contacts the damping layer on one side of the cover, effectively suppressing resonance and preventing noise amplification. Furthermore, when the pump generates noise, the reinforcing layer prevents damage to other material layers from impacts during installation and operation. Sound waves are absorbed by the sound-absorbing layer and the intermediate layer, which also provide some heat insulation, preventing heat transfer from the pump body to the outside of the cover and reducing deformation caused by temperature differences between the inside and outside of the cover. In addition, the wear-resistant layer extends the service life of the cover and prevents deformation from affecting the sound absorption effect. Attached Figure Description

[0019] Figure 1 This is a perspective view of the rotor pump protective cover of this utility model from one direction;

[0020] Figure 2 This is a perspective view of the rotor pump protective cover of this utility model from another direction;

[0021] Figure 3 This is a cross-sectional view of the cover plate of this utility model;

[0022] Figure 4 This is a cross-sectional view of the positioning block of this utility model.

[0023] In the diagram: 1. Cover plate; 2. Center plate; 3. Support rod; 4. Positioning block; 5. Bolt; 6. Sound-absorbing component; 61. Damping layer; 62. Wear-resistant layer; 63. Intermediate layer; 64. Sound-absorbing layer; 65. Reinforcing layer; 7. Sealing component; 71. Fluororubber skirt; 72. Sealing gasket; 73. Shaft groove; 74. Sealing sleeve; 75. Anti-loosening gasket; 76. Waterproof layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0026] Combination Figure 1 and Figure 2 A rotor pump protective cover includes a cover plate 1 and a center plate 2 disposed on one side of the cover plate 1. A support rod 3 is disposed between the cover plate 1 and the center plate 2. A positioning block 4 is disposed on the outer surface of the cover plate 1. Bolts 5 are threadedly connected to the inside of the positioning block 4. A sound-absorbing component 6 for reducing noise transmission is disposed on one side of the cover plate 1. A sealing component 7 for increasing the sealing effect is disposed on one side of the cover plate 1.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Please see Figures 1-4 The sound-absorbing component 6 includes a damping layer 61 disposed on one side of the cover plate 1 and a wear-resistant layer 62 disposed on the other side of the cover plate 1. An intermediate layer 63 is disposed on one side of the wear-resistant layer 62, a sound-absorbing layer 64 is disposed on one side of the intermediate layer 63, and a reinforcing layer 65 is disposed on one side of the sound-absorbing layer 64, which effectively reduces the noise during pump operation.

[0029] The damping layer 61 is a component made of rubber-based damping coating, which effectively suppresses resonance, thereby reducing the transmission of vibration and thus reducing noise.

[0030] The wear-resistant layer 62 is a component made of polyurethane, which has strong wear resistance and can extend the service life of the cover plate 1.

[0031] The intermediate layer 63 is a component made of glass wool, which is a high-efficiency sound-absorbing and heat-insulating material. It can not only absorb sound, but also play a certain role in heat insulation, preventing the heat of the pump body from being transferred to the outside of the cover plate 1, and at the same time reducing the deformation caused by the temperature difference between the inside and outside of the cover plate 1.

[0032] The sound-absorbing layer 64 is a component made of nitrile rubber, which has good sound absorption properties and good oil resistance and chemical corrosion resistance.

[0033] The reinforcing layer 65 is a component made of carbon fiber, which uses the high strength of carbon fiber to prevent deformation and damage to other material layers caused by external impacts during installation.

[0034] The sealing assembly 7 includes a fluororubber skirt 71 disposed on one side of the positioning block 4 and a sealing gasket 72 disposed on one side of the cover plate 1. A shaft groove 73 is provided on one side of the cover plate 1, and a sealing sleeve 74 is provided on the inner wall of the shaft groove 73. An anti-loosening gasket 75 is provided on the outer surface of the bolt 5. A waterproof layer 76 is provided on the outer surface of the cover plate 1. The waterproof layer 76 is a component made of polytetrafluoroethylene microporous membrane, which ensures the sealing performance of the protective cover from multiple aspects and prevents liquid and gas leakage and moisture ingress.

[0035] Specifically, firstly, noise generated by external equipment will come into contact with the damping layer 61 on one side of the cover plate 1. The damping layer 61, made of rubber-based damping coating, can effectively suppress resonance and prevent noise from amplifying. Then, when the pump body generates noise during operation, the reinforcing layer 65, made of carbon fiber, can prevent the impact force generated during installation and operation from damaging other material layers. Then, the sound waves are absorbed by the sound-absorbing layer 64, made of nitrile rubber. Then, through the intermediate layer 63, made of glass wool, not only can the sound be further absorbed, but it can also play a certain role in heat insulation, preventing the heat of the pump body from being transferred to the outside of the cover plate 1. At the same time, it can reduce the deformation caused by the temperature difference between the inside and outside of the cover plate 1. Furthermore, because it is made of polyurethane with a wear-resistant layer 62, the service life of the cover plate 1 can be extended, and the sound absorption effect can be prevented from being affected by the deformation of the cover plate 1. Furthermore, the good elasticity of the fluororubber skirt 71 and the sealing gasket 72 allows them to fit tightly against the pump body connection, filling tiny gaps and preventing liquid and gas leakage. Since the sealing sleeve 74 in the shaft groove 73 surrounds the pump shaft, forming a sealing barrier, leakage at the shaft can be prevented. In addition, the anti-loosening gasket 75 on the bolt 5 can prevent the bolt 5 from loosening due to operating vibration, ensuring that all sealing components work together tightly. Finally, the waterproof layer 76 made of polytetrafluoroethylene microporous membrane can prevent external moisture from entering, ensuring the stable performance of the sound-absorbing component 6 and the sealing component 7.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover for a rotor pump, characterized in that: include A cover plate, wherein a positioning block is provided on the outer surface of the cover plate; and a sound-absorbing component for reducing noise transmission is provided on one side of the cover plate. A center plate is disposed on one side of the cover plate, and a support rod is disposed between the center plate and the cover plate; Each of the positioning blocks has internal threaded bolts. The sound-absorbing component includes a damping layer disposed on one side of the cover plate and a wear-resistant layer disposed on the other side of the cover plate. An intermediate layer is disposed on one side of the wear-resistant layer, a sound-absorbing layer is disposed on one side of the intermediate layer, and a reinforcing layer is disposed on one side of the sound-absorbing layer.

2. The rotor pump protective cover according to claim 1, characterized in that: The damping layer is a component made of rubber-based damping coating.

3. A rotor pump protective cover according to claim 1, characterized in that: The wear-resistant layer is a component made of polyurethane.

4. A rotor pump protective cover according to claim 1, characterized in that: The intermediate layer is a component made of glass wool.

5. A rotor pump protective cover according to claim 1, characterized in that: The sound-absorbing layer is a component made of nitrile rubber.

6. A rotor pump protective cover according to claim 1, characterized in that: The reinforcing layer is a component made of carbon fiber.

7. A rotor pump protective cover according to claim 1, characterized in that: A sealing component for enhancing the sealing effect is provided on one side of the cover plate. The sealing component includes a fluororubber skirt on one side of the positioning block and a sealing gasket on one side of the cover plate. A shaft groove is provided on one side of the cover plate, and a sealing sleeve is provided on the inner wall of the shaft groove. An anti-loosening gasket is provided on the outer surface of the bolt. A waterproof layer is provided on the outer surface of the cover plate. The waterproof layer is a component made of polytetrafluoroethylene microporous membrane.

Images