Compression-resistant rotating shaft for high-pressure water pump

Abstract

According to the key points of the technical scheme, the compression-resistant rotating shaft for the high-pressure water pump comprises a compression-resistant rotating shaft body for the high-pressure water pump, a first flange is mounted at one end of the pressure-resistant rotating shaft body for the high-pressure water pump, and a second flange is mounted at the other end; a second universal joint is assembled on the second flange; and a tensile structure is assembled at the other end of the second universal joint. Through transmission of a tensile structure arranged on the side face of a second flange, when the compression-resistant rotating shaft body for the high-pressure water pump is stretched in a short distance, an extension shaft, a second limiting sleeve and a first limiting sleeve can still keep a sliding meshing state, and therefore the first limiting sleeve can always conduct transmission on the second flange; according to the pressure-resistant rotating shaft body for the high-pressure water pump, the pressure-resistant mandrels are arranged around the outside of the pressure-resistant rotating shaft body for the high-pressure water pump, so that the pressure-resistant capability of the rotating shaft can be effectively improved, axial force and radial force generated by external pressure are resisted, and the pressure-resistant capability of the pressure-resistant rotating shaft body for the high-pressure water pump is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure water pumps, and in particular to a pressure-resistant rotating shaft for high-pressure water pumps. Background Technology

[0002] A pressure-resistant rotary shaft for high-pressure water pumps is a key component, primarily responsible for transmitting power and supporting the pump body's rotation. Its design aims to withstand high pressure, prevent deformation, and maintain long-term stable operation. To cope with high-pressure environments, pressure-resistant rotary shafts are typically manufactured using high-strength alloy steel, forged steel, or other high-performance metal materials. These materials possess excellent pressure resistance and corrosion resistance.

[0003] In pressure-resistant rotating shafts used in high-pressure water pumps, universal joints are a common design solution for universal transmission. Universal joints can compensate for angular errors caused by changes in the installation angle between the rotating shaft and the pump body, thus achieving transmission. However, universal joints have some limitations in practical use, especially in effectively handling lateral tension. When the rotating shaft is subjected to lateral tension, the universal joint may experience structural deformation or fail to fully transmit torque, affecting transmission efficiency and stability.

[0004] Therefore, in order to improve the transmission efficiency and stability of the pressure-resistant rotating shaft, a pressure-resistant rotating shaft for high-pressure water pumps is proposed as a solution. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a pressure-resistant rotating shaft for high-pressure water pumps. By setting an anti-tensile structure, it is ensured that the pressure-resistant rotating shaft can still carry out stable transmission when subjected to tension.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A pressure-resistant rotating shaft for a high-pressure water pump includes a pressure-resistant rotating shaft body for a high-pressure water pump;

[0008] The high-pressure water pump uses a pressure-resistant rotating shaft body with a first flange installed at one end and a second flange installed at the other end; a first universal joint is mounted on the first flange and a second universal joint is mounted on the second flange;

[0009] A plurality of pressure-resistant spindles are arranged around the center of the pressure-resistant rotating shaft body for the high-pressure water pump between the second flange and the first flange. The plurality of pressure-resistant spindles are arranged around the outside of the pressure-resistant rotating shaft body for the high-pressure water pump and surround the pressure-resistant rotating shaft body for the high-pressure water pump.

[0010] The other end of the second universal joint is equipped with a tensile-resistant structure;

[0011] The tensile structure includes a first limiting sleeve disposed on the second universal joint, an extension shaft slidably disposed inside the first limiting sleeve, and a second limiting sleeve disposed outside the extension shaft;

[0012] The other end of the second limiting sleeve is equipped with a transmission flange.

[0013] Furthermore, a pressure-resistant shaft tube is also commonly sleeved on the outside of several of the aforementioned pressure-resistant mandrels. The pressure-resistant shaft tube is located between the first flange and the second flange and surrounds the pressure-resistant rotating shaft body of the high-pressure water pump.

[0014] Furthermore, the pressure-resistant shaft tube is made of rubber, and the outside of the pressure-resistant shaft tube is coated with a waterproof coating. Several bolts are threadedly connected to the first flange and the second flange, and threaded holes are opened at both ends of the pressure-resistant mandrel.

[0015] Furthermore, both the first limiting sleeve and the second limiting sleeve have several toothed grooves arranged around their center.

[0016] Furthermore, a plurality of limiting teeth are provided around the center of the outer side of the extension shaft; the limiting teeth are adapted to and engaged with the tooth grooves in the first limiting sleeve and the second limiting sleeve.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. Through the transmission of the tensile-resistant structure set on the side of the second flange, when the pressure-resistant rotating shaft body of the high-pressure water pump is subjected to short-distance tension, the extension shaft and the second limiting sleeve and the first limiting sleeve can still maintain a sliding engagement state, so that the first limiting sleeve can always transmit power to the second flange. In conjunction with the universal transmission of the second flange, when the second flange is subjected to lateral tension, the tensile-resistant structure can provide additional support and guidance, preventing the second flange from experiencing transmission instability due to excessive changes in the tension angle. Ultimately, the pressure-resistant rotating shaft body of the high-pressure water pump can still reliably transmit power, thereby enhancing the tensile resistance of the entire transmission system.

[0019] 2. By surrounding the high-pressure pump's pressure-resistant rotating shaft body with several pressure-resistant mandrels, the shaft's pressure resistance is effectively increased, resisting axial and radial forces generated by external pressure, thus significantly improving the pressure resistance of the high-pressure pump's pressure-resistant rotating shaft body. Simultaneously, the pressure-resistant shaft tube sleeved outside the pressure-resistant mandrels provides additional buffering, effectively absorbing the impact of external pressure and preventing damage to the high-pressure pump's pressure-resistant rotating shaft body due to sudden pressure changes. Its elasticity and flexibility help balance and disperse pressure, ensuring the high-pressure pump's pressure-resistant rotating shaft body remains reliable under high-pressure operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0021] Figure 2 This is a schematic diagram of the distribution structure of the anti-pressure shaft tube outside the anti-pressure type rotating shaft body of the high-pressure water pump in this embodiment;

[0022] Figure 3 This is a schematic diagram of the overall disassembled structure of the tensile structure in this embodiment.

[0023] In the figure, 1. Pressure-resistant rotating shaft body for high-pressure water pump; 2. First flange; 3. Second flange; 4. First universal joint; 5. Second universal joint; 6. Pressure-resistant mandrel; 7. Pressure-resistant shaft tube; 8. Tensile-resistant structure; 81. First limiting sleeve; 82. Gear groove; 83. Extension shaft; 84. Limiting tooth; 85. Second limiting sleeve; 9. Transmission flange. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0026] First embodiment;

[0027] Reference Figures 1-3 As shown, a pressure-resistant rotating shaft for a high-pressure water pump is provided in a preferred embodiment of the present invention, including a pressure-resistant rotating shaft body 1 for a high-pressure water pump;

[0028] A pressure-resistant rotating shaft body 1 for a high-pressure water pump is equipped with a first flange 2 at one end and a second flange 3 at the other end; a first universal joint 4 is mounted on the first flange 2 and a second universal joint 5 is mounted on the second flange 3.

[0029] Between the second flange 3 and the first flange 2, a plurality of pressure-resistant spindles 6 are arranged around the center of the pressure-resistant rotating shaft body 1 for high-pressure water pumps. The plurality of pressure-resistant spindles 6 are arranged around the outside of the pressure-resistant rotating shaft body 1 for high-pressure water pumps and surround the pressure-resistant rotating shaft body 1 for high-pressure water pumps.

[0030] The other end of the second universal joint 5 is equipped with a tensile-resistant structure 8;

[0031] Among them, the tensile structure 8 includes a first limiting sleeve 81 disposed on the second universal joint 5, an extension shaft 83 is slidably disposed inside the first limiting sleeve 81, and a second limiting sleeve 85 is also sleeved outside the extension shaft 83.

[0032] The other end of the second limiting sleeve 85 is equipped with a transmission flange 9.

[0033] In this embodiment, the transmission of the tensile structure 8 on the side of the second flange 3 ensures that when the pressure-resistant rotating shaft body 1 of the high-pressure water pump is subjected to short-distance tension, the extension shaft 83, the second limiting sleeve 85, and the first limiting sleeve 81 can still maintain a sliding engagement state. This allows the first limiting sleeve 81 to always transmit power to the second flange 3. Combined with the universal transmission of the second flange 3, the tensile structure 8 can provide additional support and guidance when the second flange 3 is subjected to lateral tension changes. This prevents the second flange 3 from experiencing transmission instability due to excessive changes in the tension angle, ultimately ensuring that the pressure-resistant rotating shaft body 1 of the high-pressure water pump can still reliably transmit power, thereby enhancing the tensile strength of the entire transmission system.

[0034] Furthermore, by arranging several pressure-resistant spindles 6 around the outside of the pressure-resistant rotating shaft body 1 for high-pressure water pumps, the pressure resistance of the rotating shaft can be effectively increased, resisting the axial and radial forces generated by external pressure, thereby significantly improving the pressure resistance of the pressure-resistant rotating shaft body 1 for high-pressure water pumps.

[0035] Second embodiment;

[0036] Reference Figure 2 As shown, a pressure-resistant shaft tube 7 is also collectively fitted around the outside of several pressure-resistant mandrels 6. The pressure-resistant shaft tube 7 is located between the first flange 2 and the second flange 3 and surrounds the pressure-resistant rotating shaft body 1 of the high-pressure water pump. The pressure-resistant shaft tube 7, fitted around the pressure-resistant mandrels 6, provides additional cushioning, effectively absorbing the impact of external pressure and preventing damage to the pressure-resistant rotating shaft body 1 of the high-pressure water pump due to sudden pressure changes. Its elasticity and flexibility help balance and disperse pressure, ensuring that the pressure-resistant rotating shaft body 1 of the high-pressure water pump remains reliable under high-pressure operation.

[0037] Third embodiment;

[0038] Reference Figures 1-2As shown, the pressure-resistant shaft tube 7 is made of rubber and coated with a waterproof coating. Several bolts are threaded onto the first flange 2 and the second flange 3. Threaded holes are provided at both ends of the pressure-resistant mandrel 6. When the user needs to assemble the pressure-resistant rotating shaft body 1 for the high-pressure water pump of this application, the first flange 2 is first assembled onto one end of the pressure-resistant rotating shaft body 1. Then, the bolts on the first flange 2 are used to thread-connect several pressure-resistant mandrels 6, so that the several pressure-resistant mandrels 6 are arranged in a circumferential arrangement around the outside of the pressure-resistant rotating shaft body 1. The pressure-resistant mandrels 6 can be used to surround the outside of the pressure-resistant rotating shaft body 1, thereby improving the pressure resistance and impact resistance performance of the pressure-resistant rotating shaft body 1.

[0039] It should be noted that, in the preferred embodiment, bolts are provided around both the second flange 3 and the first flange 2, and threaded holes are provided at both ends of the plurality of pressure-resistant mandrels 6. The pressure-resistant mandrels 6 are detachably connected to the first flange 2 and the second flange 3 by means of bolts.

[0040] Fourth embodiment;

[0041] Reference Figures 2-3 As shown, both the first limiting sleeve 81 and the second limiting sleeve 85 have several toothed grooves 82 arranged around their centers. The first limiting sleeve 81 and the second limiting sleeve 85 have the same structure, and the tooth spacing and angle of the toothed grooves 82 inside them are the same.

[0042] Fifth embodiment;

[0043] Reference Figures 2-3 As shown, several limiting teeth 84 are protruding around the center of the extension shaft 83. The limiting teeth 84 are adapted to and engaged with the grooves 82 in the first limiting sleeve 81 and the second limiting sleeve 85. When the pressure-resistant rotating shaft body 1 of the high-pressure water pump is subjected to short-distance tension, the length setting of the extension shaft 83 ensures that the extension shaft 83, the second limiting sleeve 85, and the first limiting sleeve 81 can always maintain a sliding engagement state, so that the first limiting sleeve 81 can always transmit power to the second flange 3.

[0044] It should be noted that users can customize the actual length of the extension shaft 83 according to their needs, but should avoid excessive length, which could lead to excessive torque and cause the extension shaft 83 to break.

[0045] Specific implementation process:

[0046] Step 1: In actual use, when the user needs to assemble the pressure-resistant rotating shaft body 1 for the high-pressure water pump of this application, the first flange 2 is first assembled on one end of the pressure-resistant rotating shaft body 1 for the high-pressure water pump. Then, the bolts on the first flange 2 are used to thread a number of pressure-resistant mandrels 6, so that the number of pressure-resistant mandrels 6 are arranged in a circular pattern around the outside of the pressure-resistant rotating shaft body 1 for the high-pressure water pump. The pressure-resistant mandrels 6 can be used to surround the outside of the pressure-resistant rotating shaft body 1 for the high-pressure water pump, thereby improving the pressure resistance and impact resistance performance of the pressure-resistant rotating shaft body 1 for the high-pressure water pump.

[0047] Step 2: After the connection of several pressure-resistant mandrels 6 is completed, the user will then put the pressure-resistant shaft tube 7 on the outside of the pressure-resistant mandrels 6, thereby using the pressure-resistant shaft tube 7 to further improve the pressure resistance of the pressure-resistant rotating shaft body 1 for high-pressure water pumps.

[0048] Step 3: After the pressure-resistant shaft tube 7 is installed, the user can then assemble the second flange 3 onto the other end of the pressure-resistant rotating shaft body 1 for the high-pressure water pump. After the second flange 3 is installed, slide the extension shaft 83 into the first limiting sleeve 81 and engage the limiting teeth 84 and the tooth groove 82 on the outside of the extension shaft 83. At this time, the first limiting sleeve 81 and the extension shaft 83 remain in a sliding state. Then, the user will put the second limiting sleeve 85, which is connected to the transmission flange 9, onto the outside of the extension shaft 83, so that the extension shaft 83 and the second limiting sleeve 85 remain in a sliding connection. After the above structures are assembled in sequence, the user can then connect the transmission flange 9 to the high-pressure water pump.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant rotating shaft for a high-pressure water pump, characterized in that: Including a pressure-resistant rotating shaft body for high-pressure water pumps (1); The pressure-resistant rotating shaft body (1) of the high-pressure water pump is equipped with a first flange (2) at one end and a second flange (3) at the other end; a first universal joint (4) is mounted on the first flange (2) and a second universal joint (5) is mounted on the second flange (3); A plurality of pressure-resistant spindles (6) are arranged around the center of the pressure-resistant rotating shaft body (1) for high-pressure water pump between the second flange (3) and the first flange (2). The plurality of pressure-resistant spindles (6) are arranged around the outside of the pressure-resistant rotating shaft body (1) for high-pressure water pump and surround the pressure-resistant rotating shaft body (1) for high-pressure water pump. The other end of the second universal joint (5) is fitted with a tensile-resistant structure (8); The tensile structure (8) includes a first limiting sleeve (81) disposed on the second universal joint (5), an extension shaft (83) is slidably disposed inside the first limiting sleeve (81), and a second limiting sleeve (85) is also sleeved outside the extension shaft (83). The other end of the second limiting sleeve (85) is equipped with a transmission flange (9).

2. The pressure-resistant rotating shaft for a high-pressure water pump according to claim 1, characterized in that: Several of the aforementioned pressure-resistant mandrels (6) are also fitted with a pressure-resistant shaft tube (7) on their exteriors. The pressure-resistant shaft tube (7) is located between the first flange (2) and the second flange (3) and surrounds the pressure-resistant rotating shaft body (1) of the high-pressure water pump.

3. The pressure-resistant rotating shaft for a high-pressure water pump according to claim 2, characterized in that: The pressure-resistant shaft tube (7) is made of rubber and is coated with a waterproof coating. Several bolts are threadedly connected to the first flange (2) and the second flange (3). Threaded holes are provided at both ends of the pressure-resistant mandrel (6).

4. The pressure-resistant rotating shaft for a high-pressure water pump according to claim 2, characterized in that: Both the first limiting sleeve (81) and the second limiting sleeve (85) have several toothed grooves (82) arranged around their center.

5. The pressure-resistant rotating shaft for a high-pressure water pump according to claim 4, characterized in that: The extension shaft (83) has several limiting teeth (84) protruding around its center on the outside; the limiting teeth (84) are adapted to and fit into the grooves (82) in the first limiting sleeve (81) and the second limiting sleeve (85).

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