Center-mounted pump body supporting structure of single-stage cantilever type pump

Abstract

The utility model relates to a centrally-mounted single-stage cantilever type pump body supporting structure, which is characterized by comprising pump body planes on two sides of a pump body and supporting structures tightly attached to the pump body planes, the supporting structure is fixed to the pump body plane and the base through a first fixing device and a second fixing device respectively. The joint of the supporting structure and the pump body plane is a vertical panel perpendicular to the base, and the joint of the supporting structure and the base is a plane panel parallel to the base and tightly attached to the base. A vertical panel of the supporting structure is fixed to the plane of the pump body, and a plane panel of the supporting structure is fixed to the base. The pump body and the supporting structure are connected through the studs, and compared with a traditional welding supporting mode, the machining and manufacturing process is simple, and the manufacturing period is short. And the cylindrical pin and the screw tail taper pin are matched for positioning, so that the assembly error is effectively reduced, the overall vibration performance of the pump is improved, and the overall reliable operation of the pump is facilitated.

Description

Technical Field

[0001] The utility model relates to a pump body support structure, in particular to a center-mounted single-stage cantilever pump body support structure with a simple manufacturing process, a short manufacturing cycle, effectively reduced assembly errors, improved vibration performance of the whole pump, and beneficial to the reliable operation of the whole pump. Background Art

[0002] For single-stage cantilever pumps used in important occasions to transport high-temperature, high-pressure, and harmful media, the pumps must operate safely, stably, and reliably for a long time. Especially during and after the occurrence of an extreme safety earthquake, the structural integrity and operability of the equipment can be guaranteed. Moreover, since the pumps transport high-temperature, high-pressure, and toxic media, the pump bodies of current single-stage single-suction cantilever pumps adopt an integral forging cylinder structure. Compared with traditional castings, the cylinder structure avoids the influence of casting defects on the strength of the pump body, thus increasing safety and reliability.

[0003] In addition, the vibration of the pump will affect the reliability of pump components. Therefore, for single-stage cantilever pumps used in important occasions to transport high-temperature, high-pressure, and harmful media, the anti-vibration performance requirements of the pumps are relatively high. Improving the vibration performance of the pump is particularly important for improving the safety and reliability of the pump.

[0004] Currently, for single-stage cantilever pumps that transport high-temperature, high-pressure, and harmful media, an integral forging cylinder structure is adopted, and the pump body is supported by welding: the pump body 1 is a forging cylinder, and pump body feet 2 are welded on both sides of the pump body 1. Through the cooperation of the pump body feet 2 and the base 4, the pump body 1 is installed on the base 4 with studs 3. Content of the Utility Model

[0005] Aiming at the above problems, the main purpose of the utility model is to provide a center-mounted single-stage cantilever pump body support structure with a simple manufacturing process, a short manufacturing cycle, effectively reduced assembly errors, improved vibration performance of the whole pump, and beneficial to the reliable operation of the whole pump.

[0006] The utility model solves the above technical problems through the following scheme: a center-mounted single-stage cantilever pump body support structure, which includes: pump body planes on both sides of the pump body, and a support structure closely attached to the pump body planes. The support structure is fixed to the pump body plane and the base by a first fixing device and a second fixing device respectively.

[0007] The joint of the support structure and the pump body plane is a vertical panel perpendicular to the base, and the joint of the support structure and the base is a plane panel parallel to the base and closely attached to the base.

[0008] The vertical panel of the support structure is fixed to the pump body plane, and the plane panel of the support structure is fixed to the base.

[0009] In a specific embodiment of the present utility model, the first fixing device includes: a cylindrical pin, a taper pin with a threaded tail, and a first stud; threaded holes, positioning pin holes, and taper pin holes with threaded tails are machined on the pump body plane. The vertical panel is positioned on the planes on both sides of the pump body with the cylindrical pin and the taper pin with a threaded tail, and then the vertical panel is installed on the pump body plane of the pump body with the first stud.

[0010] In a specific embodiment of the present utility model, the second fixing device includes: a second stud. Stud holes are provided on the flat panel, and the flat panel of the support structure is installed on the base with the second stud.

[0011] In a specific embodiment of the present utility model, there is an interference fit between the cylindrical pin and the pump body, and an interference fit between the cylindrical pin and the support structure.

[0012] The positive and progressive effects of the present utility model are as follows: Compared with common similar technologies, for the pump body support structure with central installation of the single-stage cantilever pump provided by the present utility model, the pump body and the support structure of the present utility model patent are connected by studs. Compared with the traditional welding support form, the processing and manufacturing process is simple and the manufacturing cycle is short. The cooperation of the cylindrical pin and the taper pin with a threaded tail is used for positioning, effectively reducing the assembly error, improving the vibration performance of the whole pump, and being beneficial to the reliable operation of the whole pump. Description of the Drawings

[0013] Figure 1 It is the front view of the overall structure schematic diagram of common similar technologies.

[0014] Figure 2 For Figure 1 The partial enlarged view.

[0015] Figure 3 It is the front view of the overall structure schematic diagram of the present utility model.

[0016] Figure 4 For Figure 1 The left view.

[0017] Figure 5 It is one of the force diagrams of the pump body support in the present utility model.

[0018] Figure 6 It is the second force diagram of the pump body support in the present utility model.

[0019] The following are the names corresponding to the reference numerals in the present utility model:

[0020] Figure 1-2 Among them: pump body 1’, pump body support foot 2’, stud 3’, base 4’;

[0021] Figures 3-6Chinese: Pump body 1, support structure 5, cylindrical pin 6, taper pin with screwed tail 7, first stud 8, second stud 9, base 10; pump body plane 101, threaded hole 102, locating pin hole 103, taper pin hole with screwed tail 104, vertical panel 501, flat panel 502. Detailed implementation mode

[0022] The following provides a preferred embodiment of the present invention in conjunction with the accompanying drawings to elaborate in detail on the technical solution of the present invention.

[0023] Figure 3 It is the front view of the overall structure schematic diagram of the present invention. Figure 4 For Figure 1 the left view. As Figures 3-4 shown: A pump body support structure for a centrally installed single-stage cantilever pump provided by the present invention. This centrally installed single-stage cantilever pump body support structure includes: pump body planes 101 on both sides of the pump body 1, a support structure 5 closely attached to the pump body planes 101, and the support structure 5 is fixed on the pump body plane 101 and the base 10 respectively by a first fixing device and a second fixing device; the joint between the support structure 5 and the pump body plane 101 is a vertical panel 501 perpendicular to the base 10, and the joint between the support structure and the base 10 is a flat panel 502 parallel to the base 10 and closely attached to the base 10; the vertical panel 501 of the support structure 5 is fixed on the pump body plane 101, and the flat panel 502 of the support structure 5 is fixed on the base 10.

[0024] The first fixing device in the present invention includes: cylindrical pin 6, taper pin with screwed tail 7, first stud 8; threaded holes 102, locating pin holes 103, and taper pin holes with screwed tail 104 are machined on the pump body plane 101. The vertical panel 501 is positioned on the planes on both sides of the pump body with the cylindrical pin 6 and the taper pin with screwed tail 7, and then the vertical panel 501 is installed on the pump body plane 101 of the pump body 1 with the first stud 8.

[0025] The second fixing device in the present invention includes: second stud 9. There are stud holes on the flat panel 502, and the flat panel 502 of the support structure 5 is installed on the base 10 with the second stud 9.

[0026] The support solution of the present invention patent is as follows:

[0027] The pump body 1 and the support structure 5 are connected by the first stud 8, and the assembled pump body 1 and support structure 5 are installed on the base 10 with the second stud 9. Compared with the welding structure, the complex welding process and the stress relief process after welding are omitted, the manufacturing process is simplified, and the manufacturing cost can be effectively reduced and the manufacturing cycle can be shortened.

[0028] The specific implementation method is as follows: The pump body 1 is a forging cylinder. Planes are machined on both sides of the pump body 1, and threaded holes 102, cylindrical pin holes 103, and taper pin holes with threaded ends 104 are machined on the planes (see appendix Figure 4 ). The support structure 5 is a casting. The support structure 5 is positioned on the pump body 1 through a cylindrical pin 6. The cylindrical pin 6 has an interference fit with both the pump body 1 and the support structure 5. Then, a taper pin with a threaded end 7 is used for auxiliary positioning to ensure that the support structure 5 is completely positioned on the pump body. A stud 8 is screwed into the threaded hole on the pump body 1, and the nut is tightened to completely install the support structure 5 on the pump body. The assembled pump body 1 and the support structure 5 are installed on the base 10 with a second stud 9, thereby completing the installation of the pump body 1.

[0029] Figure 5 This is one of the force diagrams of the pump body support in the present utility model. Figure 6 This is the second force diagram of the pump body support in the present utility model. As Figures 5-6 shown: During the process of positioning the pump body 1 and the support structure 5 with a cylindrical pin, the support structure 5 will rotate to both sides along the X-axis. This rotation will cause the bottom surface of the support structure 5 not to fully fit with the upper plane of the base 10, thus affecting the centering of the pump. In the patent of the present utility model, on the basis of positioning with a cylindrical pin 6, a taper pin with a threaded end 7 is added for auxiliary positioning, effectively preventing the bottom surface of the support structure 5 from rotating along the X-axis, ensuring that the bottom surface of the support structure 5 can fully fit on the upper plane of the base 10, effectively simplifying the assembly process and reducing the assembly error.

[0030] In the present utility model, the support structure 5 and the pump body are connected by studs, replacing the original welding connection method. The manufacturing process is simple, effectively shortening the manufacturing cycle, reducing the manufacturing cost, having high assembly precision, and the structure is more safe and reliable.

[0031] The above has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A centrally mounted single-stage cantilever pump body support structure, characterized in that: The centrally mounted single-stage cantilever pump body support structure comprises: a pump body plane on both sides of the pump body, and a support structure close to the pump body plane, wherein the support structure is fixed to the pump body plane and the base by a first fixing device and a second fixing device respectively; The joint between the support structure and the pump body plane is a vertical panel perpendicular to the base, and the joint between the support structure and the base is a flat panel parallel to the base and close to the base; The vertical panel of the supporting structure is fixed on the plane of the pump body, and the plane panel of the supporting structure is fixed on the base.

2. The centrally mounted single-stage cantilever pump body support structure according to claim 1, characterized in that: The first fixing device includes: a cylindrical pin, a screw-end cone pin, and a first stud; threaded holes, positioning pin holes, and screw-end cone pin holes are processed on the plane of the pump body, and the vertical panel is positioned on the planes on both sides of the pump body with the cylindrical pin and the screw-end cone pin, and then the vertical panel is installed on the pump body plane of the pump body with the first stud.

3. The centrally mounted single-stage cantilever pump body support structure according to claim 1, characterized in that: The second fixing device comprises: a second stud, a stud hole is arranged on the plane panel, and the plane panel of the supporting structure is mounted on the base by the second stud.

4. The centrally mounted single-stage cantilever pump body support structure according to claim 2, characterized in that: There is a transition fit between the cylindrical pin and the pump body, and there is a transition fit between the cylindrical pin and the supporting structure.

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