A large unit shaft head oil pump adjustable and detachable permanent magnet coupling

Abstract

This utility model relates to the field of shaft coupling technology, specifically an adjustable and detachable permanent magnet coupling for a large generator set's shaft oil pump. It includes a double-head replaceable permanent magnet coupling, a generator set's power output shaft, a shaft oil pump input shaft, and an adjustment component. One end of the double-head replaceable permanent magnet coupling is fixedly mounted on the generator set's power output shaft, and the other end is fixedly mounted on the shaft oil pump input shaft. The adjustment component is sleeved on the outer surface of the double-head replaceable permanent magnet coupling. This utility model allows both ends of the coupling to be replaceable within a certain range, eliminating the need to replace different models of permanent magnet couplings when used in different generator sets. This enables a single model of permanent magnet coupling to be adapted to multiple different generator sets within a certain range without changing the main body, thereby significantly reducing production costs.

Description

Technical Field

[0001] This utility model relates to an adjustable and detachable permanent magnet coupling for a large generator set shaft head oil pump, and in particular to an adjustable and detachable permanent magnet coupling for a large generator set shaft head oil pump, belonging to the technical field of shaft head couplings. Background Technology

[0002] Permanent magnet couplings are a new type of coupling that connects a prime mover and a working machine through the magnetic force of permanent magnets. They feature high-efficiency transmission, vibration isolation, overload protection, environmental friendliness and energy saving, strong adaptability, easy maintenance, and convenient installation. Therefore, permanent magnet couplings are widely used in sealed transmission machinery in industries such as chemical, electroplating, papermaking, pharmaceutical, food, and vacuum. They are particularly suitable for solving leakage problems that are difficult to handle with mechanical seals. As a new type of coupling, permanent magnet couplings have shown broad application prospects and important practical value in many industries due to their unique working principle and significant performance characteristics.

[0003] However, the connectors at both ends of existing permanent magnet couplings are of fixed size, and the connectors at both ends cannot be replaced within a certain range. This means that when used in different units, different models of permanent magnet couplings need to be replaced as a whole. As a result, it is not possible to adapt one model of permanent magnet coupling to multiple different units without changing the main body within a certain range, which greatly increases the cost of operation and production.

[0004] Therefore, there is an urgent need for a large-scale unit shaft oil pump with adjustable and detachable permanent magnet coupling to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable and detachable permanent magnet coupling for the shaft head oil pump of a large unit. This device can achieve the interchangeability of both ends of the coupling within a certain range by using a double-shaft head replaceable permanent magnet coupling. This eliminates the need to replace the entire permanent magnet coupling with different models when used in different units. As a result, one model of permanent magnet coupling can be adapted to multiple different units within a certain range without changing the main body, thereby greatly reducing the cost of operation and production.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A double-head replaceable permanent magnet coupling is provided. One end of the double-head replaceable permanent magnet coupling is fixedly installed on the power output shaft of the unit, and the other end is fixedly installed on the oil pump input shaft of the shaft head. The double-head replaceable permanent magnet coupling is used to couple the power output shaft of the unit and the oil pump input shaft of the shaft head together and can be applied to different sizes of the power output shaft of the unit and the oil pump input shaft of the shaft head within a certain range.

[0008] An adjustment component is sleeved on the outer surface of the replaceable permanent magnet coupling of the double-headed shaft, and the adjustment component is used to adjust the coupling gap between the components at both ends of the replaceable permanent magnet coupling of the double-headed shaft.

[0009] Preferably, the replaceable permanent magnet coupling with dual shaft heads includes an active permanent magnet disk, a driven permanent magnet disk magnetically coupled to one end of the active permanent magnet disk, and a fixed flange isolation cover located between the active permanent magnet disk and the driven permanent magnet disk, wherein the fixed flange isolation cover encloses the driven permanent magnet disk.

[0010] Preferably, the active permanent magnet includes an outer magnet, a main coupling magnetic pole mounted on the inner wall of a groove on the outer magnet near the driven permanent magnet, and a replaceable output shaft connection block embedded on the outer magnet away from the driven permanent magnet.

[0011] Preferably, the replaceable output shaft connecting block is provided with a first embedded polygonal protrusion, and the outer magnet is provided with a first embedded polygonal groove that matches the first embedded polygonal protrusion. The replaceable output shaft connecting block is fixedly installed on the active permanent magnet by bolts.

[0012] Preferably, the driven permanent disk includes an inner magnet, a driven coupling magnetic pole sleeved on the outer surface of the inner magnet near the end of the active permanent disk, and a replaceable input shaft connection block embedded in the outer magnet away from the active permanent disk.

[0013] Preferably, the replaceable input shaft connecting block is provided with a second embedded polygonal protrusion, and the inner magnet is provided with a second embedded polygonal groove that matches the second embedded polygonal protrusion. The replaceable input shaft connecting block is fixedly installed on the driven permanent disk by bolts.

[0014] Preferably, the adjustment assembly includes a plurality of support protrusions evenly spaced at the edge of the fixed flange isolation cover, a plurality of sliding support ring blocks evenly spaced at the outer surface of the outer magnet near the edge of the fixed flange isolation cover, an adjustment support screw threaded through the sliding support ring blocks and screwed onto the support protrusions, a first push nut screwed onto the end of the adjustment support screw thread, and a second push nut screwed onto the head end of the adjustment support screw thread 20.

[0015] Preferably, the unit's power output shaft is fixedly embedded in the replaceable output shaft connecting block by bolts, and the shaft head oil pump input shaft is fixedly embedded in the replaceable input shaft connecting block by bolts.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. This utility model can make the connectors at both ends replaceable within a certain range by using a double-head replaceable permanent magnet coupling. This means that when used in different units, it is not necessary to replace the entire permanent magnet coupling with different models. Thus, a single model of permanent magnet coupling can be adapted to multiple different units within a certain range without changing the main body, thereby greatly reducing the cost of operation and production.

[0018] 2. This utility model can adjust the coupling gap between the two ends of the replaceable permanent magnet coupling of the double-shaft head by adjusting the components, so as to adapt to the vibration and displacement during the operation of the unit and ensure the stability and efficiency of power transmission. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation of the replaceable output shaft connecting block of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation of the replaceable input shaft connecting block of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall half-section internal structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the installation of the adjustment component structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the replaceable permanent magnet coupling with double shaft heads according to this utility model.

[0026] In the diagram: 1. Replaceable permanent magnet coupling with double shaft head; 2. Power output shaft of the unit; 3. Input shaft of the shaft head oil pump; 4. Adjustment assembly; 5. Active permanent magnet disk; 6. Driven permanent magnet disk; 7. Fixed flange isolation cover; 8. Outer magnet; 9. Main coupling magnetic pole; 10. Replaceable output shaft connecting block; 11. First embedded polygonal protrusion; 12. First embedded polygonal groove; 13. Inner magnet; 14. Driven coupling magnetic pole; 15. Replaceable input shaft connecting block; 16. Second embedded polygonal protrusion; 17. Second embedded polygonal groove; 18. Support protrusion; 19. Sliding support ring block; 20. Adjusting support screw; 21. First push nut; 22. Second push nut. Detailed Implementation

[0027] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] like Figures 1-6 As shown, the adjustable and detachable permanent magnet coupling of the large unit shaft oil pump provided in this embodiment includes:

[0029] The double-head replaceable permanent magnet coupling 1 has one end fixedly mounted on the unit's power output shaft 2 and the other end fixedly mounted on the shaft head oil pump input shaft 3. The double-head replaceable permanent magnet coupling 1 is used to couple the unit's power output shaft 2 and the shaft head oil pump input shaft 3 together and can be applied to different sizes of unit power output shaft 2 and shaft head oil pump input shaft 3 within a certain range. The unit's power output shaft 2 facilitates the transmission of the unit's power output to the double-head replaceable permanent magnet coupling 1, and the shaft head oil pump input shaft 3 facilitates the transmission of the power received from the double-head replaceable permanent magnet coupling 1 to the shaft head oil pump.

[0030] Adjustment component 4 is sleeved on the outer surface of the double-head replaceable permanent magnet coupling 1. Adjustment component 4 is used to adjust the coupling gap between the two end components of the double-head replaceable permanent magnet coupling 1.

[0031] The double-head replaceable permanent magnet coupling allows both ends of the coupling to be replaceable within a certain range. This means that when used in different units, it is not necessary to replace the entire permanent magnet coupling with a different model. Thus, within a certain range, one model of permanent magnet coupling can be adapted to multiple different units without changing the main body, thereby greatly reducing the cost of operation and production.

[0032] When the adjustment component arrives, it can adjust the coupling gap between the two ends of the replaceable permanent magnet coupling of the double-shaft head to adapt to the vibration and displacement during the operation of the unit and ensure the stability and efficiency of power transmission.

[0033] Furthermore, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, the double-head replaceable permanent magnet coupling 1 includes a driving permanent magnet disk 5, a driven permanent magnet disk 6 magnetically coupled to one end of the driving permanent magnet disk 5, and a fixed flange isolation cover 7 located between the driving permanent magnet disk 5 and the driven permanent magnet disk 6. The fixed flange isolation cover 7 encloses the driven permanent magnet disk 6. When the driving permanent magnet disk 5 and the driven permanent magnet disk 6 cooperate with each other, a magnetic force will be generated between them, so that the torque transmission between the prime mover and the working machine can be realized without direct mechanical contact. The fixed flange isolation cover 7 can easily separate the driven permanent magnet disk 6 to form a sealed chamber, effectively preventing liquid or gas leakage, and is suitable for occasions with high sealing requirements.

[0034] Furthermore, such as Figure 1 , Figure 2 as well as Figure 4 As shown, the active permanent magnet disk 5 includes an outer magnet 8, a main coupling magnetic pole 9 installed on the inner wall of a groove at the end of the outer magnet 8 near the driven permanent magnet disk 6, and a replaceable output shaft connection block 10 embedded at the end of the outer magnet 8 away from the driven permanent magnet disk 6. The outer magnet 8 facilitates the fixed support of the main coupling magnetic pole 9 and the replaceable output shaft connection block 10. The main coupling magnetic pole 9 and the driven coupling magnetic pole 14 cooperate with each other to facilitate the generation of magnetic force between the active permanent magnet disk 5 and the driven permanent magnet disk 6. The replaceable output shaft connection block 10 facilitates the installation and connection of the unit's power output shaft 2 onto the active permanent magnet disk 5.

[0035] Furthermore, such as Figure 2 , Figure 4 as well as Figure 5 As shown, the replaceable output shaft connecting block 10 is provided with a first embedded polygonal protrusion 11, and the outer magnet 8 is provided with a first embedded polygonal groove 12 that matches the first embedded polygonal protrusion 11. The replaceable output shaft connecting block 10 is fixedly installed on the active permanent magnet 5 by bolts. The first embedded polygonal protrusion 11 and the first embedded polygonal groove 12 cooperate with each other to make the replaceable output shaft connecting block 10 able to be embedded in the active permanent magnet 5 with anti-slip teeth. At the same time, by replacing the replaceable output shaft connecting block 10, the active permanent magnet 5 can be adapted to more types of power output shafts 2 within a certain range.

[0036] Furthermore, such as Figure 3 and Figure 4As shown, the driven permanent magnet disk 6 includes an inner magnet 13, a slave coupling magnetic pole 14 sleeved on the outer surface of the inner magnet 13 near the end of the active permanent magnet disk 5, and a replaceable input shaft connection block 15 embedded in the outer magnet 8 away from the active permanent magnet disk 5. The inner magnet 13 facilitates the fixed support of the slave coupling magnetic pole 14 and the replaceable input shaft connection block 15. The slave coupling magnetic pole 14 and the main coupling magnetic pole 9 cooperate with each other to facilitate the generation of magnetic force between the active permanent magnet disk 5 and the driven permanent magnet disk 6. The replaceable input shaft connection block 15 facilitates the installation and connection of the shaft head oil pump input shaft 3 to the driven permanent magnet disk 6.

[0037] Furthermore, such as Figure 3 and Figure 4 As shown, the replaceable input shaft connecting block 15 is provided with a second embedded polygonal protrusion 16, and the inner magnet 13 is provided with a second embedded polygonal groove 17 that matches the second embedded polygonal protrusion 16. The replaceable input shaft connecting block 15 is fixedly installed on the driven permanent magnet disk 6 by bolts. The second embedded polygonal protrusion 16 and the second embedded polygonal groove 17 cooperate with each other to facilitate the replacement input shaft connecting block 15 to be embedded in the driven permanent magnet disk 6 with anti-slip teeth. At the same time, by replacing the replaceable input shaft connecting block 15, the driven permanent magnet disk 6 can be adapted to more types of shaft head oil pump input shafts 3 within a certain range.

[0038] Furthermore, such as Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, the adjustment assembly 4 includes several support protrusions 18 evenly spaced at the edge of the fixed flange isolation cover 7, several sliding support ring blocks 19 evenly spaced at the outer surface of the outer magnet 8 near the edge of the fixed flange isolation cover 7, an adjustment support screw 20 screwed onto the support protrusions 18 through the sliding support ring blocks 19, a first push nut 21 screwed onto the end of the adjustment support screw 20, and a second push nut 22 screwed onto the beginning of the adjustment support screw 20. The support protrusions 18 facilitate the fixed support of the adjustment support screw 20, and the sliding support ring blocks 19 facilitate the upper limit sliding adjustment of the outer magnet 8 on the adjustment support screw 20. The adjustment support screw 20, the first push nut 21, and the second push nut 22 cooperate with each other to facilitate the adjustment of the coupling gap between the active permanent magnet 5 and the driven permanent magnet 6.

[0039] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6As shown, the unit's power output shaft 2 is fixedly embedded in the replaceable output shaft connecting block 10 by bolts, and the shaft head oil pump input shaft 3 is fixedly embedded in the replaceable input shaft connecting block 15 by bolts.

[0040] like Figures 1-6 As shown, the principle of the adjustable and detachable permanent magnet coupling of the large unit shaft oil pump provided in this embodiment is as follows: When using this device, first select the replaceable input shaft connecting block 15 that matches the specific size of the shaft oil pump input shaft 3, and then install the replaceable input shaft connecting block 15 on the inner magnet 13 by bolting. At this time, ensure that the second embedded polygonal protrusion 16 on the replaceable input shaft connecting block 15 fits into the second embedded polygonal groove 17 on the inner magnet 13. Then, the replaceable input shaft connecting block 15 on the driven permanent magnet disk 6 is sleeved on the shaft oil pump input shaft 3 and fixed by bolting.

[0041] Then, several adjusting support screws 20 are screwed onto several support protrusions 18 on the fixed flange isolation cover 7 using tools. Then, the second push nut 22 is screwed onto the adjusting support screw 20. Then, the exposed ends of several adjusting support screws 20 are passed through several sliding support ring blocks 19 on the outer magnet 8. Then, several first push nuts 21 are screwed onto the exposed ends of several adjusting support screws 20 in sequence. At this time, the first push nuts 21 should be tightened and fitted against the sliding support ring blocks 19, and the second push nuts 22 should also be tightened and fitted against the sliding support ring blocks 19.

[0042] When it is necessary to adjust the coupling gap between the active permanent magnet 5 and the driven permanent magnet 6, the first push nut 21 and the second push nut 22 should be turned away from the sliding support ring block 19 so that the first push nut 21 and the second push nut 22 are each at the end of the adjusting support screw 20.

[0043] If it is necessary to increase the coupling gap between the active permanent disk 5 and the driven permanent disk 6, the second push nut 22 should be turned so that the second push nut 22 pushes the active permanent disk 5 away from the driven permanent disk 6 until the appropriate position is reached;

[0044] If it is necessary to reduce the coupling gap between the active permanent disk 5 and the driven permanent disk 6, the first push nut 21 should be turned so that the second push nut 22 pushes the active permanent disk 5 closer to the driven permanent disk 6 until the appropriate position is reached.

[0045] Once the coupling gap between the active permanent disk 5 and the driven permanent disk 6 is adjusted, the first push nut 21 or the second push nut 22 can be turned so that the first push nut 21 or the second push nut 22, which is away from the sliding support ring block 19, comes into contact with the active permanent disk 5 to fix and clamp it.

[0046] Then, the fixed flange isolation cover 7 with the active permanent magnet disk 5 is fixedly installed on the fixed housing of the shaft head oil pump input shaft 3 with bolts. Then, according to the specific size of the unit's power output shaft 2, a replaceable output shaft connecting block 10 that matches it is selected. Then, the replaceable output shaft connecting block 10 is embedded in the outer magnet 8 with bolts. At this time, it is necessary to ensure that the first embedded polygonal protrusion 11 on the replaceable output shaft connecting block 10 fits into the first embedded polygonal groove 12 on the outer magnet 8. Then, the unit's power output shaft 2 is inserted into the replaceable output shaft connecting block 10 on the active permanent magnet disk 5 and fixed with bolts.

[0047] After the active permanent magnet disk 5 is connected and installed with the unit's power output shaft 2, the first push nut 21 can be screwed off the adjusting support screw 20 and removed. Then, the adjusting support screw 20 can be screwed off the support protrusion 18 and removed. Next, the second push nut 22 can be screwed off the adjusting support screw 20 and removed. Finally, the adjusting support screw 20 can be pulled out from the sliding support ring block 19. At this point, the double-head replaceable permanent magnet coupling 1 can work in conjunction with the unit's power output shaft 2 and the shaft head oil pump input shaft 3.

Claims

1. An adjustable and detachable permanent magnet coupling for a large generator set shaft oil pump, characterized in that, include: A double-head replaceable permanent magnet coupling (1) is provided. One end of the double-head replaceable permanent magnet coupling (1) is fixedly installed on the power output shaft (2) of the unit, and the other end of the double-head replaceable permanent magnet coupling (1) is fixedly installed on the oil pump input shaft (3) of the shaft head. The double-head replaceable permanent magnet coupling (1) is used to couple the power output shaft (2) of the unit with the oil pump input shaft (3) of the shaft head together and can be applied to different sizes of the power output shaft (2) of the unit and the oil pump input shaft (3) of the shaft head within a certain range. Adjustment component (4), which is sleeved on the outer surface of the double-head replaceable permanent magnet coupling (1), is used to adjust the coupling gap between the two end components of the double-head replaceable permanent magnet coupling (1).

2. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 1, characterized in that: The double-head replaceable permanent magnet coupling (1) includes an active permanent magnet disk (5), a driven permanent magnet disk (6) magnetically coupled to one end of the active permanent magnet disk (5), and a fixed flange isolation cover (7) located between the active permanent magnet disk (5) and the driven permanent magnet disk (6), the fixed flange isolation cover (7) covering the driven permanent magnet disk (6).

3. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 2, characterized in that: The active permanent disk (5) includes an outer magnet (8), a main coupling magnetic pole (9) mounted on the inner wall of a groove near the end of the outer magnet (8) close to the driven permanent disk (6), and a replaceable output shaft connection block (10) embedded in the end of the outer magnet (8) away from the driven permanent disk (6).

4. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 3, characterized in that: The replaceable output shaft connecting block (10) is provided with a first embedded polygonal protrusion (11), and the outer magnet (8) is provided with a first embedded polygonal groove (12) that is adapted to the first embedded polygonal protrusion (11). The replaceable output shaft connecting block (10) is fixedly installed on the active permanent disk (5) by bolts.

5. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 4, characterized in that: The driven permanent disk (6) includes an inner magnet (13), a driven coupling magnetic pole (14) sleeved on the outer surface of the inner magnet (13) near the active permanent disk (5), and a replaceable input shaft connection block (15) embedded in the outer magnet (8) away from the active permanent disk (5).

6. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 5, characterized in that: The replaceable input shaft connecting block (15) is provided with a second embedded polygonal protrusion (16), and the inner magnet (13) is provided with a second embedded polygonal groove (17) that is adapted to the second embedded polygonal protrusion (16). The replaceable input shaft connecting block (15) is fixedly installed on the driven permanent disk (6) by bolts.

7. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 3, characterized in that: The adjustment assembly (4) includes a plurality of support protrusions (18) evenly spaced at the edge of the fixed flange isolation cover (7), a plurality of sliding support ring blocks (19) evenly spaced at the outer surface of the outer magnet (8) near the edge of the flange isolation cover (7), an adjustment support screw (20) threaded through the sliding support ring blocks (19) and screwed onto the support protrusions (18), a first push nut (21) screwed onto the end of the adjustment support screw (20), and a second push nut (22) screwed onto the head end of the adjustment support screw (20).

8. The adjustable and detachable permanent magnet coupling for a large generator shaft oil pump according to claim 5, characterized in that: The unit's power output shaft (2) is fixedly embedded in the replaceable output shaft connecting block (10) by bolts, and the shaft head oil pump input shaft (3) is fixedly embedded in the replaceable input shaft connecting block (15) by bolts.

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