Power plant feed water pump coupling jacket

Abstract

The utility model relates to shaft connecting equipment technical field discloses a power plant feed water pump shaft coupling sleeve, including the sleeve one and setting the sleeve two of sleeve one side, mounting piece, including the bolt one of screw connection in sleeve one with sleeve two one end and the thread groove one of opening in sleeve one with sleeve two other end and with adjacent bolt one thread cooperation, reinforcing piece, including setting the steady sleeve of sleeve one with sleeve two one side and the screw rod of thread wear in steady sleeve one end for adjusting steady sleeve position, be equipped with the connecting piece for connecting screw rod on sleeve one and sleeve two. The utility model has the advantages of reasonable structure, can limit the shaft external water pump pump end coupling, improve water pump pump end coupling's installation accuracy, can improve the stability of the limited ring in the shaft external, can adjust the position of steady ring according to the installation demand, convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of shaft connection equipment, specifically to a coupling sleeve for a power plant feedwater pump. Background Technology

[0002] As a core auxiliary machine of the generator set, the operation stability of the power plant feedwater pump directly affects the safety of the unit. Currently, the installation of the feedwater pump end coupling to the shaft requires a clamp composed of two semi-rings to limit the installation accuracy of the coupling. Although this clamp can limit the feedwater pump end coupling, in application, the clamp composed of two semi-rings can still easily shift to the outside of the shaft, thus reducing the installation accuracy of the pump end coupling to the shaft.

[0003] Therefore, we propose a coupling jacket for power plant feedwater pumps. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a coupling sleeve for a power plant feedwater pump.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a power plant feedwater pump coupling sleeve, including a first sleeve and a second sleeve disposed on one side of the first sleeve, an installation component including a bolt threaded to one end of the first sleeve and the second sleeve and a threaded groove opened at the other end of the first sleeve and the second sleeve and threadedly engaged with the adjacent bolt, and a reinforcement component including a retaining sleeve disposed on one side of the first sleeve and the second sleeve and a lead screw threaded through one end of the retaining sleeve for adjusting the position of the retaining sleeve. The first sleeve and the second sleeve are provided with connecting parts for connecting the lead screw. Through the operation of the above components, the pump end coupling of the water pump outside the shaft can be limited, the stability performance of the limiting ring outside the shaft can be improved, and the position of the retaining ring outside the shaft can be adjusted.

[0006] Furthermore, the connector includes a receiving groove formed at the end of the first and second sleeves away from the bolt and communicating with the threaded groove, and a connecting block sliding inside the receiving groove. One end of the lead screw is rotatably connected to the adjacent connecting block, and the other end of the lead screw is fixed with a lever for rotating the lead screw. Through the operation of the above components, it is convenient for the staff to remove the stabilizing sleeve from the outside of the first and second sleeves.

[0007] Furthermore, the connecting block has a second threaded groove, and the bolt is threaded through the second threaded groove. Through the cooperation of the bolt and the second threaded groove, the connecting block can be fixed inside the corresponding first and second sleeves.

[0008] Furthermore, the lever is a circular block with anti-slip texture on its outer side. By rotating the lever, the corresponding lead screw can be rotated.

[0009] Furthermore, the two ends of the stabilizing sleeve located on one side of the second sleeve are threaded with bolts two, and the two ends of the stabilizing sleeve located on the one side of the first sleeve are provided with threaded grooves three. The bolts two are threadedly engaged with the adjacent threaded grooves three. Through the threaded engagement of the bolts two with the adjacent threaded grooves three, the stabilizing ring formed by the two stabilizing sleeves can be fixed to the outside of the shaft.

[0010] Furthermore, the first jacket, the second jacket, and the stabilizing sleeve are all semi-arc structures. The inner walls of the first jacket and the second jacket are tapered surfaces with a ratio of 1:24. A 4mm gap is reserved at the opposite ends of the first jacket and the second jacket. With the semi-arc structure of the first jacket, the second jacket, and the stabilizing sleeve, users can easily install the first jacket, the second jacket, and the stabilizing sleeve on the outside of the shaft.

[0011] Furthermore, the receiving groove is a rectangular groove, and the connecting block is a rectangular block. By using the receiving groove and connecting block, which are both rectangular structures, the stability of the connecting blocks inside the first and second jackets can be improved.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This utility model uses two sleeves, one and two, located outside the shaft to limit the water pump end coupling outside the shaft, thereby facilitating the installation of the water pump end coupling outside the shaft by the operator and improving the installation accuracy of the water pump end coupling. The stabilizing ring composed of two stabilizing sleeves can improve the stability of the limiting ring outside the shaft. The position of the stabilizing ring can be adjusted according to the installation requirements. The stabilizing rings on the outside of the two sleeves can be easily and conveniently disassembled, making it easy to use.

[0013] In summary, this utility model has a reasonable structure, which can limit the water pump end coupling outside the shaft, improve the installation accuracy of the water pump end coupling, improve the stability of the limiting ring outside the shaft, and allow the position of the stabilizing ring to be adjusted according to installation requirements, making it convenient to use. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of a coupling sleeve for a power plant feedwater pump. Figure 2 This is a cross-sectional view of the second jacket in a power plant feedwater pump coupling jacket; Figure 3 A cross-sectional view of a jacket in a power plant feedwater pump coupling. Figure 4 This is a schematic diagram of a retaining sleeve in a coupling of a power plant feedwater pump. Figure 5 This is a cross-sectional view of a retaining sleeve in a coupling of a power plant feedwater pump.

[0015] In the diagram: 1. Jacket 1; 2. Jacket 2; 3. Receiving groove; 4. Connecting block; 5. Bolt 1; 6. Lead screw; 7. Stabilizing sleeve; 8. Bolt 2; 9. Pulling block. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: Combination Figure 1 , Figure 2 and Figure 3 This embodiment of a power plant feedwater pump coupling jacket includes a first jacket 1 and a second jacket 2 disposed on one side of the first jacket 1; an installation component including a bolt 5 threadedly connected to one end of the first jacket 1 and the second jacket 2 and a threaded groove 1 opened at the other end of the first jacket 1 and the second jacket 2 and threadedly engaged with the adjacent bolt 5; a reinforcement component including a retaining sleeve 7 disposed on one side of the first jacket 1 and the second jacket 2 and a lead screw 6 threaded through one end of the retaining sleeve 7 for adjusting the position of the retaining sleeve 7; the first jacket 1 and the second jacket 2 are provided with a connector for connecting the lead screw 6.

[0018] The implementation principle of a power plant feedwater pump coupling sleeve in this embodiment is as follows: Through the threaded engagement of bolt 5 and threaded groove 1, a limiting ring formed by sleeve 1 and sleeve 2 can be fixed to the outside of the shaft. This limiting ring restricts the pump end coupling outside the shaft, facilitating installation of the pump end coupling by workers. Through a connecting piece, a stabilizing ring composed of two stabilizing sleeves 7 can be installed outside the shaft. The stabilizing ring on one side of the limiting ring, composed of two stabilizing sleeves 7, improves the stability of the limiting ring outside the shaft, thereby increasing the installation accuracy of the pump end coupling and preventing the limiting ring outside the shaft from sliding arbitrarily. High stability is achieved. Rotating the lead screw 6, through the threaded engagement between the lead screw 6 and the stabilizing sleeve 7, can drive the stabilizing sleeve 7 to move on the shaft, allowing workers to adjust the position of the stabilizing ring according to installation requirements.

[0019] Example 2: Combination Figure 4This embodiment is further improved on the basis of embodiment 1 in that: the connecting member includes a receiving groove 3 opened at the end of the first sleeve 1 and the second sleeve 2 away from the bolt 5 and communicating with the threaded groove 1, and a connecting block 4 sliding inside the receiving groove 3. One end of the lead screw 6 is rotatably connected to the adjacent connecting block 4, and the other end of the lead screw 6 is fixed with a lever 9 for rotating the lead screw 6. The lead screw 6 can be connected to the first sleeve 1 through the connecting block 4. When it is necessary to remove the stabilizing sleeve 7 from the outside of the first sleeve 1 and the second sleeve 2, the bolt 5 can be rotated to drive the bolt 5 to move. After the bolt 5 is disengaged from the connecting block 4, the stabilizing sleeve 7 is pulled, which drives the stabilizing sleeve 7, the lead screw 6 and the connecting block 4 to move. When the connecting block 4 is disengaged from the inside of the receiving groove 3, the stabilizing sleeve 7 is removed from the outside of the first sleeve 1 and the second sleeve 2.

[0020] The connecting block 4 has a threaded groove 2, and the bolt 5 is threaded through the threaded groove 2. Through the cooperation of the bolt 5 and the threaded groove 2, the connecting block 4 can be fixed inside the corresponding sleeve 1 and sleeve 2.

[0021] The lever 9 is a circular block with anti-slip texture on its outer side. By rotating the lever 9, the corresponding lead screw 6 can be rotated.

[0022] Example 3: Combination Figure 5 Based on embodiment 1, the further improvement of this embodiment is that: the two ends of the stabilizing sleeve 7 located on the side of the second sleeve 2 are threadedly connected with bolts 2 8, and the two ends of the stabilizing sleeve 7 located on the side of the first sleeve 1 are provided with threaded grooves 3. The bolts 2 8 are threadedly engaged with the adjacent threaded grooves 3. Through the threaded engagement of the bolts 2 8 with the adjacent threaded grooves 3, the stabilizing ring formed by the two stabilizing sleeves 7 can be fixed to the outside of the shaft.

[0023] The first sleeve 1, the second sleeve 2, and the stabilizing sleeve 7 are all semi-arc structures. The inner walls of the first sleeve 1 and the second sleeve 2 are tapered surfaces with a ratio of 1:24. A 4mm gap is reserved at the opposite ends of the first sleeve 1 and the second sleeve 2. With the semi-arc structure of the first sleeve 1, the second sleeve 2, and the stabilizing sleeve 7, users can easily install the first sleeve 1, the second sleeve 2, and the stabilizing sleeve 7 on the outside of the shaft.

[0024] The receiving groove 3 is a rectangular groove, and the connecting block 4 is a rectangular block. By using the receiving groove 3 and the connecting block 4, which are both rectangular structures, the stability of the connecting block 4 inside the jacket 1 and the jacket 2 can be improved.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A coupling sleeve for a power plant feedwater pump, characterized in that: Includes a first jacket (1) and a second jacket (2) disposed on one side of the first jacket (1); The mounting component includes a bolt 1 (5) threadedly connected to one end of the first (1) and the second (2) and a threaded groove 1 opened at the other end of the first (1) and the second (2) and threadedly engaged with the adjacent bolt 1 (5). The reinforcement includes a retaining sleeve (7) disposed on one side of the first (1) and the second (2) and a screw (6) threaded through one end of the retaining sleeve (7) for adjusting the position of the retaining sleeve (7). The first jacket (1) and the second jacket (2) are provided with connecting parts for connecting the lead screw (6).

2. The power plant feedwater pump coupling sleeve as described in claim 1, characterized in that: The connector includes a receiving groove (3) opened on the end of the first sleeve (1) and the second sleeve (2) away from the bolt (5) and communicating with the threaded groove, and a connecting block (4) sliding inside the receiving groove (3). One end of the lead screw (6) is rotatably connected to the adjacent connecting block (4), and the other end of the lead screw (6) is fixed with a lever (9) for rotating the lead screw (6).

3. The power plant feedwater pump coupling sleeve as described in claim 2, characterized in that: The connecting block (4) has a second threaded groove, and the bolt (5) is threaded inside the second threaded groove.

4. The power plant feedwater pump coupling sleeve as described in claim 2, characterized in that: The lever (9) is a circular block, and anti-slip texture is provided on the outer side of the lever (9).

5. The power plant feedwater pump coupling sleeve as described in claim 1, characterized in that: The two ends of the stabilizing sleeve (7) located on the side of the second sleeve (2) are threaded with bolts (8), and the two ends of the stabilizing sleeve (7) located on the side of the first sleeve (1) are provided with threaded grooves (3). The bolts (8) are threadedly engaged with the adjacent threaded grooves (3).

6. The power plant feedwater pump coupling sleeve as described in claim 1, characterized in that: The first jacket (1), the second jacket (2) and the stabilizing sleeve (7) are all semi-arc structures. The inner walls of the first jacket (1) and the second jacket (2) are 1:24 conical surfaces. A 4mm gap is reserved between the opposite ends of the first jacket (1) and the second jacket (2).

7. The power plant feedwater pump coupling sleeve as described in claim 2, characterized in that: The receiving groove (3) is a rectangular groove, and the connecting block (4) is a rectangular block.

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