Special tool for disassembling and assembling bearing bush of multi-stage pump

Abstract

The utility model relates to a special tool for disassembling and assembling a bearing bush of a multi-stage pump. The tool structurally comprises a top pad, a top plate, a micro bearing, an adjusting cylinder, a supporting seat and a bottom pad. The tool adjusting cylinder and the supporting seat are in threaded connection and rotate to increase the distance between the multi-stage pump shaft and the pump head, so that the multi-stage pump bearing bush is convenient to disassemble by personnel, and the problems that the multi-stage pump bearing bush is tightly matched with the pump head and the pump shaft and cannot be disassembled and maintained easily are solved. And the conditions that the bearing bush is difficult to disassemble and the contact surface of the pump shaft and the pump head is easily abraded and scratched during disassembly when field workers maintain the bearing bush are avoided, so that the multistage pump bearing bush disassembly process is safe, simple and efficient.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to a special tool for disassembling and assembling axle bushes of a multi-stage pump, which has the advantages of simple structure, convenient installation, low cost and high reliability. Background Art

[0002] High-pressure multistage centrifugal pumps are usually used to transport large-flow, high-pressure liquids in working environments such as chemical steel production lines and offshore oil platforms.

[0003] When removing and installing the bearing, the bearing between the pump head and the pump shaft needs to be removed or installed. Since the bearing is pressed between the pump head and the pump shaft, it is extremely inconvenient to install the bearing and inspect and disassemble it, and there is a risk of wear and scratching key components such as the pump shaft and pump head. Utility Model Content

[0004] In view of the above problems, the main purpose of the utility model is to provide a special tool for disassembling and assembling the bearing bush of a multi-stage pump, which has a simple structure, is easy to install, has a low cost and high reliability.

[0005] The utility model solves the above technical problems through the following technical solutions: a special tool for disassembling and assembling a multi-stage pump bearing, the special tool for disassembling and assembling a multi-stage pump bearing comprises: a top pad, a top plate, a micro bearing, an adjustment cylinder, a support seat, and a bottom pad; the top pad and the top plate are installed together by a ferrule connection, the top plate and the micro bearing are installed together by a ferrule connection, the micro bearing and the adjustment cylinder are installed together by a ferrule connection, the adjustment cylinder and the support seat are installed together by a threaded connection, and the support seat and the bottom pad are installed together by a ferrule connection.

[0006] In a specific implementation example of the utility model, the top pad includes a top pad spherical convex surface and a top pad clamping column; the top plate includes a top plate circular clamping groove, a top plate annular convex ring, and a top plate clamping column; during installation, the top pad clamping column is clamped in the top plate circular clamping groove; the top plate convex ring and the top plate clamping column are components installed in combination with the micro bearing.

[0007] In a specific implementation example of the utility model, the top pad is integrally formed, and the top plate is integrally formed.

[0008] In a specific implementation example of the utility model, the micro bearing includes a micro bearing clamping hole arranged at the center of the micro bearing. During installation, the top plate clamping column is installed in the micro bearing clamping hole, and the top plate annular convex ring is sleeved outside the micro bearing.

[0009] In a specific implementation example of the utility model, the adjustment cylinder includes: an adjustment cylinder countersunk hole, an inner column in the countersunk hole, and an adjustment cylinder support seat mounting hole. The inner column in the countersunk hole is clamped in the micro-bearing clamp, and the support seat includes: a support seat column and a support seat annular groove; an internal thread is provided in the adjustment cylinder support seat mounting hole, and an external thread is provided outside the support seat column. During installation, the support seat column and the adjustment cylinder support seat mounting hole are installed together by means of a threaded connection, and the support seat annular groove is a component installed in combination with the base pad.

[0010] In a specific implementation example of the utility model, the adjustment cylinder is integrally formed, and the support seat is integrally formed.

[0011] In a specific implementation example of the utility model, a bottom pad convex ring is arranged on the bottom pad, and during installation, the bottom pad convex ring is clamped in the annular clamping groove of the support seat.

[0012] In a specific implementation example of the present utility model, the bottom pad is integrally formed.

[0013] In a specific implementation example of the utility model, the outer surface of the adjustment cylinder is provided with a concave-convex surface for increasing friction.

[0014] The positive progressive effect of the utility model is that the special tooling provided by the utility model for disassembly and assembly of multi-stage pump bearings has the following advantages: the utility model solves the problem of being extremely inconvenient during installation, maintenance and disassembly of bearings, and the risk of wear and scratching key components such as pump shafts and pump heads. The utility model ensures that the disassembly and installation process of bearings is safe, simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model (explosion diagram).

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model (assembled).

[0017] Figure 3-1 It is the front view of the top pad in the utility model.

[0018] Figure 3-2 It is a bottom view of the top pad in the utility model.

[0019] Figure 4-1 It is the front view (middle section) of the top plate in the utility model.

[0020] Figure 4-2 It is a bottom view of the top plate in the utility model.

[0021] Figure 5-1 It is the front view (middle section) of the micro bearing of the utility model.

[0022] Figure 5-2It is a bottom view (middle section) of the micro bearing in the utility model.

[0023] Figure 6-1 This is the front view (middle section) of the adjustment tube in the present utility model.

[0024] Figure 6-2 It is a top view (middle section) of the adjustment cylinder in the present utility model.

[0025] Figure 7-1 This is the front view (middle section) of the support seat in the present invention.

[0026] Figure 7-2 It is a bottom view of the support seat in the utility model.

[0027] Figure 8-1 This is a front view (middle section) of the midsole pad of the utility model.

[0028] Figure 8-2 It is a bottom view of the midsole pad of the utility model.

[0029] Fig. 9 It is a schematic diagram of the working principle of the utility model (operating diagram).

[0030] The following are the names corresponding to the label numbers in this utility model:

[0031] Top pad 1, top plate 2, micro bearing 3, adjustment cylinder 4, support seat 5, bottom pad 6;

[0032] Top pad spherical convex surface 101, top pad clamping column 102;

[0033] Top plate circular groove 201, top plate annular convex ring 202, top plate clamping column 203;

[0034] Micro bearing clamping hole 301;

[0035] Adjustment tube countersunk hole 401, countersunk inner column 402, adjustment tube support seat mounting hole 403, concave-convex surface 404; support seat column 501, support seat annular groove 502;

[0036] Bottom gasket bead 601. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.

[0038] Figure 1 It is a schematic diagram of the overall structure of the utility model (explosion diagram). Figure 2 The overall structure diagram of the utility model (assembled) is shown in FIG. Figure 1 and 2As shown: the utility model provides a special tool for disassembling and assembling a multi-stage pump bearing, which includes: a top pad 1, a top plate 2, a micro bearing 3, an adjustment cylinder 4, a support seat 5, and a bottom pad 6; the top pad 1 and the top plate 2 are installed together by a ferrule connection, the top plate 2 and the micro bearing 3 are installed together by a ferrule connection, the micro bearing 3 and the adjustment cylinder 4 are installed together by a ferrule connection, the adjustment cylinder 4 and the support seat 5 are installed together by a threaded connection, and the support seat 5 and the bottom pad 6 are installed together by a ferrule connection.

[0039] Figure 3-1 This is the front view of the top pad in the utility model. Figure 3-2 This is a bottom view of the top pad in the utility model. Figure 4-1 This is the front view (middle section) of the top plate in the utility model. Figure 4-2 It is a bottom view of the top plate in the utility model. The top pad 1 includes a top pad spherical convex surface 101 and a top pad clamping column 102; the top plate 2 includes a top plate circular clamping groove 201, a top plate annular convex ring 202, and a top plate clamping column 203; when installed, the top pad clamping column 102 is clamped in the top plate circular clamping groove 201; the top plate convex ring 202 and the top plate clamping column 203 are components installed in combination with the micro bearing 3. The top pad 1 is integrally formed, and the top plate 2 is integrally formed.

[0040] Figure 5-1 This is the front view (middle section) of the micro bearing of the utility model. Figure 5-2 This is a bottom view (middle section) of the micro bearing in the utility model. Figure 6-1 This is the front view (middle section) of the adjustment cylinder in the utility model. Figure 6-2 This is a bottom view (middle section) of the adjustment cylinder in the utility model, as shown in the above figure: the micro-bearing 3 includes a micro-bearing clamping hole 301 set in the center of the micro-bearing 3. During installation, the top plate clamping column 203 is installed in the micro-bearing clamping hole 301, and the top plate annular convex ring 202 is sleeved on the outside of the micro-bearing 3. The adjustment cylinder 4 includes: an adjustment cylinder countersunk hole 401, a countersunk inner column 402, and an adjustment cylinder support seat mounting hole 403. The countersunk inner column 402 is clamped in the micro-bearing clamping hole 301. The support seat 5 includes: a support seat column 501 and a support seat annular clamping groove 502.

[0041] An internal thread is provided inside the adjustment tube support seat mounting hole 403, and an external thread is provided outside the support seat column 501. During installation, the support seat column 501 and the adjustment tube support seat mounting hole 403 are installed together by threaded connection, and the support seat annular groove 502 is a component installed in combination with the base pad 6.

[0042] In the utility model, the outer surface of the adjustment cylinder 4 is provided with a concave-convex part 404 for increasing friction, and the adjustment cylinder 4 is formed in one piece.

[0043] Figure 7-1This is the front view (middle section) of the support seat in the utility model. Figure 7-2 This is a bottom view of the support seat in the utility model. Figure 8-1 This is the front view (middle section) of the midsole pad of the utility model. Figure 8-2 It is a bottom view of the midsole pad of the utility model, the support seat 5 includes: a support seat column 501, a support seat annular groove 502; a bottom pad convex ring 601 is provided on the bottom pad 6, when installing, the bottom pad convex ring 601 is stuck in the support seat annular groove 502, the support seat 5 is integrally formed, and the bottom pad 6 is integrally formed.

[0044] Fig. 9 It is a schematic diagram of the working principle of the utility model (operating diagram). Fig. 9 This is a schematic diagram of the working principle of the utility model. The top plate and the micro bearing cooperate to keep the top plate and the multi-stage pump shaft relatively still while the adjustment cylinder rotates. The adjustment cylinder and the support seat are connected by threads, and fine adjustment is achieved by rotating the adjustment cylinder.

[0045] The tooling provided by the utility model finely adjusts the distance between the pump shaft and the pump head by adjusting the distance between the barrel and the support seat.

[0046] The following is the specific working process of the utility model: the utility model is placed in the gap between the pump head 7 and the pump shaft 8. When the bearing 9 needs to be disassembled, the adjustment cylinder is twisted so that the distance between the adjustment cylinder and the support seat is gradually increased through the thread between the two, thereby completing the distance change between the pump head and the pump shaft 8, thereby completing the disassembly of the bearing 9. Fig. 9 shown.

[0047] The utility model provides a special tool for disassembling and assembling the bearing of a multi-stage pump, which solves the inconvenience in installing the bearing and disassembling it for inspection and maintenance, avoids the risk of wear and scratches on key components such as the pump shaft and pump head, ensures that the bearing disassembly and installation process is safe, simple and efficient, and can be applied to the projects required for disassembling and assembling the bearing of a multi-stage pump.

[0048] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A special tool for disassembling and assembling a multi-stage pump bearing, characterized in that: The special tooling for disassembling and assembling the multi-stage pump bearing comprises: a top pad, a top plate, a micro bearing, an adjustment cylinder, a support seat, and a bottom pad; the top pad and the top plate are installed together by a ferrule connection, the top plate and the micro bearing are installed together by a ferrule connection, the micro bearing and the adjustment cylinder are installed together by a ferrule connection, the adjustment cylinder and the support seat are installed together by a threaded connection, and the support seat and the bottom pad are installed together by a ferrule connection.

2. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 1, characterized in that: The top pad includes a top pad spherical convex surface and a top pad clamping column; the top plate includes a top plate circular clamping groove, a top plate annular convex ring, and a top plate clamping column; when installing, the top pad clamping column is clamped in the top plate circular clamping groove; the top plate convex ring and the top plate clamping column are components installed in combination with the micro bearing.

3. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 2, characterized in that: The top pad is molded in one piece, and the top plate is molded in one piece.

4. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 2 or 3, characterized in that: The micro bearing comprises a micro bearing clamping hole arranged at the center of the micro bearing. During installation, the top plate clamping column is installed in the micro bearing clamping hole, and the top plate annular convex ring is sleeved outside the micro bearing.

5. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 4 is characterized in that: The adjusting cylinder includes: an adjusting cylinder countersunk hole, an inner column in the countersunk hole, and an adjusting cylinder support seat mounting hole. The inner column in the countersunk hole is clamped in the micro-bearing clamp. The support seat includes: a support seat column and a support seat annular groove. An internal thread is provided in the adjusting cylinder support seat mounting hole, and an external thread is provided outside the support seat column. During installation, the support seat column and the adjusting cylinder support seat mounting hole are installed together by means of a threaded connection, and the support seat annular groove is a component installed in combination with the base pad.

6. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 5, characterized in that: The adjusting cylinder is integrally formed, and the supporting seat is integrally formed.

7. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 5, characterized in that: A bottom pad convex ring is arranged on the bottom pad, and during installation, the bottom pad convex ring is clamped in the annular clamping groove of the support seat.

8. The special tool for disassembling and assembling the bearing bush of a multi-stage pump according to claim 7, characterized in that: The bottom pad is integrally molded.

9. The special tool for disassembling and assembling a multi-stage pump bearing according to claim 1, characterized in that: The outer surface of the adjustment cylinder is provided with a concave-convex surface for increasing friction.

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