A liquid ring vacuum pump housing rotating tool

Abstract

The utility model belongs to liquid ring vacuum pump auxiliary tool technical field provides a kind of liquid ring vacuum pump shell rotating tool, including hydraulic component, alloy block being fixedly connected with hydraulic component, and screw hole for being connected and positioning with the shell of liquid ring vacuum pump is set on alloy block;When alloy block is fixed in shell by screw hole, hydraulic component drives alloy block to lift, to drive shell rotation by displacement of alloy block.The utility model is suitable for existing liquid ring vacuum pump, can improve the rotation efficiency to the shell of liquid ring vacuum pump, and simple structure, production and investment cost are low.

Description

Technical Field

[0001] This application relates to the field of auxiliary tools for liquid ring vacuum pumps, and in particular to a rotating tool for the housing of a liquid ring vacuum pump. Background Technology

[0002] A liquid ring vacuum pump contains an eccentric impeller within its pump body. The pump body is equipped with an inlet, an outlet, a liquid inlet, and a drain outlet. The working fluid enters the pump head cavity through the liquid inlet. The motor drives the impeller to rotate clockwise via a coupling, forming a water ring within the cavity. The upper edge of the inner ring seals the upper edge of the impeller hub, and the lower edge seals the top of the impeller, thus dividing the cavity into two crescent-shaped spaces. The left side of the space decreases in size with clockwise rotation, while the right side increases in size. The vacuum level of the liquid ring vacuum pump can be adjusted by adjusting the gap between the upper edge of the impeller and the inner wall of the pump. However, adjusting the impeller and inner wall by rotating the pump casing often requires multiple people and significant time due to the large size and weight of the pump casing. This method is not only inefficient and labor-intensive but also poses significant safety hazards.

[0003] Based on this, relevant technicians have proposed several solutions. For example, patent CN219317191U discloses a cantilevered liquid ring vacuum pump with easily adjustable clearance. It includes a main shaft, a bearing bracket, and a positioning body. The positioning body is installed at the front end of the bearing bracket. The main shaft is rotatably mounted on the bearing bracket via the positioning body and bearings. An impeller is installed at the rear end of the main shaft. The positioning body is axially fixed to the main shaft. The positioning body is equipped with an adjusting component. By setting a positioning body axially fixed to the main shaft, adjusting the relative position of the positioning body and the bearing bracket can indirectly adjust the clearance between the impeller and the pump body's end cover or distribution plate. The entire process requires no disassembly of parts or the assistance of lifting equipment, significantly reducing installation difficulty and improving work efficiency. The clearance between the impeller and the distribution plate or pump body end face is determined by moving the impeller as a whole along the axial direction of the main shaft. Because the fit between the parts does not change, the value is more accurate than adding shims after removing the impeller. However, this method improves the structure of the liquid ring vacuum pump. In practical applications, companies need to purchase or manufacture this type of liquid ring vacuum pump, increasing production and investment costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rotating tool for the housing of a liquid ring vacuum pump. It is applicable to existing liquid ring vacuum pumps, improves the rotation efficiency of the liquid ring vacuum pump housing, and has a simple structure with low production and investment costs.

[0005] To achieve the above objectives, this utility model provides a rotating tool for the housing of a liquid ring vacuum pump, including a hydraulic assembly and an alloy block fixedly connected to the hydraulic assembly. The alloy block has a screw hole for connecting and positioning with the housing of the liquid ring vacuum pump. When the alloy block is fixed to the housing through the screw hole, the hydraulic assembly drives the alloy block to rise and fall, so as to drive the housing to rotate through the displacement of the alloy block.

[0006] Furthermore, it also includes screws, which engage with the threaded holes.

[0007] Furthermore, the alloy block is tilted and connected to the hydraulic assembly.

[0008] Furthermore, the fixing surface of the alloy block fits into the cut surface of the outer shell.

[0009] Furthermore, the hydraulic assembly includes a hydraulic chamber, a hydraulic rod mounted on the hydraulic chamber, and a screw rod mounted on the hydraulic rod. The hydraulic assembly is threadedly connected to the alloy block via the screw rod.

[0010] Furthermore, the screw rod and the hydraulic rod are threaded together, and the hydraulic rod is movably connected in the hydraulic cavity.

[0011] Furthermore, the hydraulic assembly also includes a crank handle connected to the hydraulic chamber. The crank handle's movement drives the hydraulic chamber to generate pressure, which in turn pushes the hydraulic rod and screw rod to rise and fall.

[0012] Furthermore, the crank handle has a lever structure.

[0013] Furthermore, it also includes a base, which includes a mounting bracket for mounting hydraulic components.

[0014] Furthermore, the base also includes a base plate that contacts the ground, and the base plate is installed at the bottom of the mounting base.

[0015] The beneficial technical effects of this utility model are as follows:

[0016] This invention utilizes the cranking of a handle to generate pressure within the hydraulic chamber, thereby pushing the hydraulic rod upwards. This, in turn, drives the connected screw rod to push the alloy block upwards. The displacement of the alloy block causes the outer casing of the liquid ring vacuum pump to rotate. Furthermore, because the fixed surface of the alloy block fits snugly against the cut surface of the outer casing, the pressure on the contact surface between the alloy block and the outer casing is evenly distributed, avoiding stress concentration and improving force transmission efficiency. It also ensures the alignment accuracy of the screw holes and reduces screw misalignment and wear.

[0017] This utility model has a simple structure and is easy to implement. It can reduce the time that maintenance personnel spend rotating the housing of the liquid ring vacuum pump, improve work efficiency, reduce labor intensity, and greatly improve safety, thus having significant practical value. Attached Figure Description

[0018] The accompanying drawings, incorporated in and forming part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without inventive effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the rotating tool for the liquid ring vacuum pump housing in this application.

[0020] Figure Labels

[0021] 1: Alloy block; 2: Screw hole; 3: Screw rod; 4: Hydraulic rod; 5: Hydraulic cavity; 6: Base; 7: Handle; 8: Screw. Detailed Implementation

[0022] Unless otherwise defined, all technical and / or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should be understood that certain features of this invention (described in the context of separate embodiments for clarity) may also be provided in combination in a single embodiment. Conversely, multiple features of this invention (described in the context of a single embodiment for brevity) may also be provided separately or in any suitable combination or, where appropriate, in any other described embodiment of this invention. Certain features described in the context of various embodiments will not be considered essential features of those embodiments unless the embodiment is inoperable without those elements. The present invention is further illustrated below by specific examples; however, it should be noted that the specific process conditions and results described in the embodiments of this invention are for illustrative purposes only and should not be construed as limiting the scope of protection of this invention. All equivalent changes or modifications made in accordance with the spirit and essence of this invention should be covered within the scope of protection of this invention.

[0023] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] It should be noted that all materials involved in this application are existing commercially available materials, and there is no improvement to the materials, which meets the requirements for the subject matter of utility model protection.

[0025] like Figure 1 As shown, this utility model provides a rotating tool for the housing of a liquid ring vacuum pump, which is applicable to existing liquid ring vacuum pumps. It includes a hydraulic component and an alloy block 1 fixedly connected to the hydraulic component. The alloy block 1 has a screw hole 2 for connecting and positioning with the housing of the liquid ring vacuum pump. When the alloy block 1 is fixed to the housing through the screw hole 2, the hydraulic component drives the alloy block 1 to rise and fall, so as to drive the housing to rotate through the displacement of the alloy block 1.

[0026] Furthermore, the alloy block 1 used in this application is made of high-manganese alloy material with a yield strength of 1200 MPa to 1400 MPa, a tensile strength of 1200 MPa to 1800 MPa, and an elongation of 35% to 50%. It possesses advantages such as high strength, corrosion resistance, and wear resistance, meeting the requirements for long-term wear of rotating tools. Even further, a through-hole 2 is provided on the alloy block 1, the size of which matches the size of the threaded hole on the liquid ring vacuum pump housing. This application does not specifically limit the structural parameters of the alloy block 1, such as size, shape, and surface roughness, but sets them according to actual needs, as long as sufficient contact area is ensured between the alloy block 1 and the liquid ring vacuum pump housing.

[0027] Furthermore, the rotating tool of this application also includes a screw 8, which is threaded into the screw hole 2. The size of the screw 8 is not specifically limited here, but is set according to actual needs, as long as it can ensure that the alloy block 1 can be firmly connected to the outer shell through the screw hole 2. For example, the size of the screw 8 is M16, which matches the size of the screw hole of the liquid ring vacuum pump housing and the screw hole 2 of the alloy block 1, so that they can be tightly connected.

[0028] Furthermore, alloy block 1 is inclinedly connected to the hydraulic assembly, and the fixed surface of alloy block 1 is in close contact with the cut surface of the outer shell. When the hydraulic assembly pushes alloy block 1 up and down, the outer shell of the liquid ring vacuum pump may generate a lateral torque during rotation. The inclined connection can decompose part of the axial thrust into horizontal separation, thereby balancing the asymmetric load when the outer shell rotates, reducing the bending stress of the hydraulic assembly, and extending its service life. In addition, the inclined connection allows the fixed surface of alloy block 1 to fit more closely with the cut surface of the outer shell, resulting in a more uniform pressure distribution on the contact surface between alloy block 1 and the outer shell, avoiding stress concentration, and improving force transmission efficiency; it can also ensure the alignment accuracy of the screw hole 2 and reduce misalignment and wear of the screw 8.

[0029] Furthermore, such as Figure 1As shown, the hydraulic assembly includes a hydraulic chamber 5, a hydraulic rod 4 mounted on the hydraulic chamber 5, and a screw rod 3 mounted on the hydraulic rod 4. The hydraulic assembly is threadedly connected to the alloy block 1 via the screw rod 3. The screw rod 3 is threadedly connected to the hydraulic rod 4, which is movably connected within the hydraulic chamber 5. The hydraulic rod 4 in this application is made of high-manganese alloy material, and its lifting stroke is 2m.

[0030] Furthermore, such as Figure 1 As shown, the hydraulic assembly also includes a crank handle 7, which is connected to the hydraulic chamber 5. The cranking of the handle 7 drives the hydraulic chamber 5 to generate pressure, which in turn pushes the hydraulic rod 4 and the screw rod 3 to rise and fall. The handle 7 has a lever structure. During operation, the reciprocating cranking of the handle 7 by the operator is converted into linear motion of the plunger within the hydraulic chamber 5, generating pressure. At this time, the hydraulic rod 4 receives thrust, and under the action of thrust, the hydraulic rod 4 drives the screw rod 3 to rise and fall. Furthermore, through the displacement of the alloy block 1, the linear motion is converted into a tangential force on the outer casing, driving the outer casing to rotate. Furthermore, the lever structure of the handle 7 in this application makes it more labor-saving. The installation methods of the handle 7 and the hydraulic chamber 5 include, but are not limited to, pin-type quick installation, gear meshing transmission, and universal joint connection.

[0031] Furthermore, it also includes a base 6, which comprises a mounting seat for installing hydraulic components and a base plate in contact with the ground, the base plate being installed at the bottom of the mounting seat. The base 6 of this application is made of alloy steel, with dimensions of 600mm × 500mm × 300mm, and possesses advantages such as high strength, corrosion resistance, and wear resistance, meeting the load-bearing and wear requirements of rotating tools. Furthermore, the base plate and mounting seat can be an integrally formed structure. The base 6 of this application is placed vertically on the ground, with the base plate in contact with the ground. The base 6 of this application bears the hydraulic components and alloy block 1, which may generate vibration or tilting forces during the operation of the rotating tool; therefore, the base plate of this application can have an anti-slip design to effectively prevent the base 6 from sliding or shifting, ensuring operational safety.

[0032] Furthermore, the working principle of the liquid ring vacuum pump housing rotary tool of this application is as follows:

[0033] When it is necessary to rotate the liquid ring vacuum pump housing, align the screw hole 2 of the alloy block 1 with the screw hole in the cross-section of the vacuum pump housing, and use screw 8 to engage with screw hole 2 to fix the alloy block 1 to the vacuum pump housing. The upper end of the screw rod 3 is threaded to the lower end of the alloy block 1, and the lower end of the screw rod 3 is threaded to the upper end of the hydraulic rod 4, thus connecting the lower end of the alloy block 1 to the upper end of the hydraulic rod 4. The base 6 is placed vertically on the ground, and the operator cranks the handle 7. The pressure generated by the hydraulic chamber 5 pushes the hydraulic rod 4 upward, which in turn drives the screw rod 3 to push the alloy block 1 upward, thereby causing the liquid ring vacuum pump housing to rotate.

[0034] Furthermore, the liquid ring vacuum pump housing rotation tool of this application has a simple structure and is easy to implement. It can reduce the time that maintenance personnel spend rotating the liquid ring vacuum pump housing, improve work efficiency, reduce labor intensity, and greatly improve safety, thus having significant practicality.

[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A rotating tool for the housing of a liquid ring vacuum pump, characterized in that, The system includes a hydraulic assembly and an alloy block (1) fixedly connected to the hydraulic assembly. The alloy block (1) has a screw hole (2) for connecting and positioning with the housing of a liquid ring vacuum pump. When the alloy block (1) is fixed to the housing through the screw hole (2), the hydraulic assembly drives the alloy block (1) to rise and fall, so that the housing rotates through the displacement of the alloy block (1).

2. The rotary tool for the housing of a liquid ring vacuum pump according to claim 1, characterized in that, It also includes a screw (8) that is threaded into the screw hole (2).

3. The rotary tool for the housing of a liquid ring vacuum pump according to claim 1 or 2, characterized in that, The alloy block (1) is inclinedly connected to the hydraulic assembly.

4. The rotary tool for the housing of a liquid ring vacuum pump according to claim 3, characterized in that, The fixing surface of the alloy block (1) is in contact with the cut surface of the outer shell.

5. The rotary tool for the housing of a liquid ring vacuum pump according to claim 1, 2, or 4, characterized in that, The hydraulic assembly includes a hydraulic cavity (5), a hydraulic rod (4) mounted on the hydraulic cavity (5), and a screw rod (3) mounted on the hydraulic rod (4). The hydraulic assembly is threadedly connected to the alloy block (1) via the screw rod (3).

6. The rotary tool for the housing of a liquid ring vacuum pump according to claim 5, characterized in that, The screw rod (3) is threadedly connected to the hydraulic rod (4), and the hydraulic rod (4) is movably connected in the hydraulic cavity (5).

7. The rotary tool for the housing of a liquid ring vacuum pump according to claim 6, characterized in that, The hydraulic assembly also includes a crank (7), which is connected to the hydraulic cavity (5). The crank (7) drives the hydraulic cavity (5) to generate pressure, thereby pushing the hydraulic rod (4) and the screw rod (3) to rise and fall.

8. The rotary tool for the housing of a liquid ring vacuum pump according to claim 7, characterized in that, The crank handle (7) has a lever structure.

9. The rotary tool for the housing of a liquid ring vacuum pump according to claim 1, 2, or 4, characterized in that, It also includes a base (6), which includes a mounting bracket for mounting the hydraulic assembly.

10. The rotary tool for the housing of a liquid ring vacuum pump according to claim 9, characterized in that, The base (6) also includes a base plate that contacts the ground and is installed at the bottom of the mounting base.

Images