Magnetic coupling for rail transit

Abstract

The utility model discloses a magnetic coupling for rail transit, which belongs to the technical field of couplings, and comprises an inner magnet and an outer magnet coupled with the inner magnet, the outer side of the inner magnet is provided with an isolation hood, the outer side of the outer magnet is provided with a housing, and the outer side of the housing is provided with an isolation hood. A connecting base is installed at the position, corresponding to the outer magnet, of the inner side of the housing, a plurality of assembling grooves are formed in the surface of the connecting base, guide grooves are symmetrically formed in the side walls of the assembling grooves, and an adjusting disc is installed on the side, away from a port of the housing, of the connecting base; a spiral adjusting groove is formed in the surface of the adjusting disc, the guide block slides on the inner side of the guide groove so that the movable base can move in the radial position of the connecting base, the outer magnet can be close to the isolation cover, and then the coupler can be adjusted according to the diameter of the power output shaft conduction part.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, and more specifically, to a magnetic coupling for rail transportation. Background Art

[0002] Magnetic coupling is a non-contact coupling, generally composed of two inner and outer magnets, separated by an isolation cover in the middle. The inner magnet is connected to the driven part, and the outer magnet is connected to the power part. In addition to the buffering and vibration absorption functions of elastic couplings, the biggest feature of magnetic couplings is that they adopt a new magnetic coupling principle to achieve the transmission of force and torque between the driving shaft and the driven shaft without direct contact. Compared with traditional couplings, magnetic couplings can reduce the size, reduce costs, improve efficiency, and save energy.

[0003] The commonly used couplings are usually contact-type mechanical connections. When installing the mechanical coupling, the eccentricity needs to be adjusted to make the two connected shafts concentric, which takes a long time to install. During use, due to the existence of mechanical wear, the service life of the contact-type mechanical coupling is short. The existing patent is a magnetic-driven non-contact coupling, and the patent authorization number is CN 212012444 U, which shortens the installation time, improves work efficiency, avoids mechanical wear, increases the service life of the coupling, and saves production costs.

[0004] However, the model of the magnetic coupling in the patent authorization number CN 212012444 U is selected according to the diameter of the transmission part of the selected transmission shaft, which makes it impossible to realize the variable diameter of the coupling. A coupling of one diameter size corresponds to a transmission shaft of one diameter size. Since the specifications of the transmission shaft components of rail transit are different, in order to realize the universality of the magnetic coupling, we propose a magnetic coupling for rail transit to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a magnetic coupling for rail transit, which can move the movable seat in the radial position of the connecting seat by sliding the guide block on the inner side of the guide groove, so that the external magnet is close to the isolation cover, and the coupling can be adjusted according to the diameter of the power output shaft transmission part.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A magnetic coupling for rail transit, comprising an inner magnet and an outer magnet coupled with the inner magnet, wherein an isolation cover is installed on the outer side of the inner magnet;

[0010] A cover is installed on the outer side of the outer magnet;

[0011] A connection seat is installed on the inner side of the cover shell corresponding to the outer magnet, a mounting groove is provided on the surface of the connection seat, and a plurality of the mounting grooves are arranged at radial positions of the connection seat, and guide grooves are symmetrically provided on the side walls of the mounting grooves;

[0012] An adjusting disk is installed on the side of the connecting seat away from the port of the housing, a spiral adjusting groove is provided on the surface of the adjusting disk, an internal threaded sleeve is integrally formed on the middle of the surface of the adjusting disk close to the connecting seat, and the internal threaded sleeve is rotatably connected to the connecting seat, and an adjusting groove is provided at the port of the internal threaded sleeve;

[0013] A movable seat fixedly connected to the external magnet is installed on the inner side of each of the plurality of assembly grooves, guide blocks slidably connected to the guide groove are installed on the outer walls on both sides of the movable seat, and an adjustment column head slidably connected to the spiral adjustment groove is installed at one end of the movable seat away from the external magnet.

[0014] Furthermore, a locking screw is threadedly connected to the end of the internally threaded sleeve.

[0015] Furthermore, a gasket is sleeved on the locking screw, and the gasket is respectively in contact with the nut and the connecting seat of the locking screw.

[0016] Furthermore, a connecting block is fixedly connected between the outer wall of the connecting seat and the inner wall of the cover shell, and a plurality of connecting blocks are arranged at radial positions of the cover shell.

[0017] Furthermore, three assembly grooves are specifically provided, and the angle between two adjacent assembly grooves and the axis of the connecting seat is 120°.

[0018] Furthermore, an axial hole is provided at the junction of the connecting seat and the internally threaded sleeve.

[0019] Furthermore, the guide block and the guide groove are clearance matched, and the adjustment column heads and the adjustment column heads are clearance matched.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] (1) In this solution, a tool such as a screwdriver is used to abut against an adjustment groove provided at the end of the internally threaded sleeve to drive the adjustment disk to rotate. While the adjustment column head slides on the inner side of the spiral adjustment groove, the guide block slides on the inner side of the guide groove to move the radial position of the movable seat in the connecting seat, so that the external magnet is close to the isolation cover, and the coupling can be adjusted according to the diameter of the power output shaft transmission part.

[0023] (2) This solution uses a locking screw to threadably connect with the internal threaded sleeve until it cannot be turned anymore. A gasket is used to abut against the nut and the connecting seat of the locking screw respectively, which can effectively prevent the locking screw from loosening and has a good positioning effect on the adjustment disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a front view schematic diagram of the isolation cover of the utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the AA part of the isolation cover of the utility model;

[0027] Figure 4 This is a schematic diagram of the inner structure of the cover shell of the utility model;

[0028] Figure 5 This is a schematic diagram of the connecting seat structure of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the adjustment disk of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the movable seat of the utility model;

[0031] Figure 8 This is a schematic diagram of the locking screw structure of the utility model.

[0032] Description of the numbers in the figure:

[0033] 1. Inner magnet; 2. Outer magnet; 3. Isolation cover; 4. Cover shell; 5. Connecting seat; 6. Assembly groove; 7. Guide groove; 8. Adjusting plate; 9. Screw adjusting groove; 10. Internal threaded sleeve; 11. Adjusting groove; 12. Movable seat; 13. Guide block; 14. Adjusting column head; 15. Locking screw; 16. Gasket. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0035] Example:

[0036] See also Figure 1-8, a magnetic coupling for rail transit, comprising an inner magnet 1 and an outer magnet 2 coupled with the inner magnet 1, an isolation cover 3 is installed on the outer side of the inner magnet 1;

[0037] A cover 4 is installed on the outer side of the outer magnet 2;

[0038] A connection seat 5 is installed on the inner side of the cover 4 corresponding to the outer magnet 2, and a mounting groove 6 is provided on the surface of the connection seat 5, and a plurality of mounting grooves 6 are provided at radial positions of the connection seat 5, and guide grooves 7 are symmetrically provided on the side walls of the mounting groove 6;

[0039] An adjusting disk 8 is installed on the side of the connecting seat 5 away from the port of the housing 4, and a spiral adjusting groove 9 is provided on the surface of the adjusting disk 8. An internal threaded sleeve 10 is integrally formed in the middle of the surface of the adjusting disk 8 close to the connecting seat 5, and the internal threaded sleeve 10 is rotatably connected to the connecting seat 5, and an adjusting groove 11 is provided at the port of the internal threaded sleeve 10;

[0040] A movable seat 12 fixedly connected to the external magnet 2 is installed on the inner side of the plurality of assembly grooves 6, and guide blocks 13 slidably connected to the guide groove 7 are installed on the outer walls on both sides of the movable seat 12, and an adjustment column head 14 slidably connected to the spiral adjustment groove 9 is installed at one end of the movable seat 12 away from the external magnet 2;

[0041] It should be noted that when the magnetic coupling for rail transit is in use, the inner magnet 1 and the isolation cover 3 are connected to the power shaft of the driving device, and then the outer magnet 2 is adjusted according to the diameter of the isolation cover 3. The adjustment disk 8 is driven to rotate by using a tool such as a screwdriver to abut against the adjustment groove 11 set at the end of the internal threaded sleeve 10. While the adjustment column head 14 slides on the inner side of the spiral adjustment groove 9, the guide block 13 slides on the inner side of the guide groove 7 to move the movable seat 12 in the radial position of the connecting seat 5, so that the outer magnet 2 is close to the isolation cover 3, and then the coupling can be adjusted according to the diameter of the power output shaft transmission part. Finally, the cover 4 is connected to the transmission shaft of the rail transit equipment, and the coupling between the inner magnet 1 and the outer magnet 2 is used to transmit power.

[0042] like Figure 4 , Figure 6 , Figure 8 As shown, a locking screw 15 is threadedly connected to the end of the internal threaded sleeve 10, and a gasket 16 is sleeved on the locking screw 15, and the gasket 16 is respectively in contact with the nut of the locking screw 15 and the connecting seat 5;

[0043] It should be noted that after the adjusting disk 8 is rotated into place, the locking screw 15 is threadedly connected with the internal threaded sleeve 10 until it can no longer be screwed. The gasket 16 is respectively in contact with the nut of the locking screw 15 and the connecting seat 5, which can effectively prevent the locking screw 15 from loosening and has a good positioning effect on the adjusting disk 8.

[0044] like Figure 4 , Figure 5 As shown, a connecting block is fixedly connected between the outer wall of the connecting seat 5 and the inner wall of the housing 4, and a plurality of connecting blocks are arranged at radial positions of the housing 4;

[0045] It should be noted that the stability of the connection between the connecting base 5 and the cover shell 4 is ensured.

[0046] like Figure 5 As shown, there are three assembly grooves 6, and the angle between the axis of the connecting seat 5 and two adjacent assembly grooves 6 is 120°;

[0047] It should be noted that a plurality of external magnets 2 can be adjusted simultaneously.

[0048] like Figure 5 , Figure 7 As shown, an axial hole is provided at the junction of the connecting seat 5 and the internal threaded sleeve 10;

[0049] It should be noted that the adjusting disk 8 is rotatable relative to the connecting seat 5 .

[0050] like Figure 5 , Figure 6 , Figure 7 As shown, the guide block 13 and the guide groove 7 have clearance fit, and the adjustment column head 14 and the adjustment column head 14 have clearance fit;

[0051] It should be noted that the stability of the movable seat 12 during the adjustment process is ensured.

[0052] When in use: the inner magnet 1 and the isolation cover 3 are connected to the power shaft of the driving device, and then the outer magnet 2 is adjusted according to the diameter of the isolation cover 3. The adjustment disk 8 is driven to rotate by using a tool such as a screwdriver to abut against the adjustment groove 11 set at the end of the internal threaded sleeve 10. While the adjustment column head 14 slides on the inner side of the spiral adjustment groove 9, the guide block 13 slides on the inner side of the guide groove 7 to move the movable seat 12 in the radial position of the connecting seat 5, so that the outer magnet 2 is close to the isolation cover 3, and then the coupling can be adjusted according to the diameter of the power output shaft transmission part. Finally, the cover shell 4 is connected to the transmission shaft of the rail transit equipment, and the power is transmitted by the coupling between the inner magnet 1 and the outer magnet 2.

[0053] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A magnetic coupling for rail transit, comprising an inner magnet (1) and an outer magnet (2) coupled to the inner magnet (1), characterized in that: An isolation cover (3) is installed on the outer side of the inner magnet (1); A cover (4) is installed on the outer side of the external magnet (2); A connecting seat (5) is installed on the inner side of the cover shell (4) corresponding to the external magnet (2), a mounting groove (6) is provided on the surface of the connecting seat (5), and a plurality of the mounting grooves (6) are arranged at radial positions of the connecting seat (5), and guide grooves (7) are symmetrically provided on the side walls of the mounting grooves (6); An adjusting disk (8) is installed on the side of the connecting seat (5) away from the port of the housing (4), a spiral adjusting groove (9) is provided on the surface of the adjusting disk (8), an internal threaded sleeve (10) is integrally formed in the middle of the surface of the adjusting disk (8) close to the connecting seat (5), and the internal threaded sleeve (10) is rotatably connected to the connecting seat (5), and an adjusting groove (11) is provided at the port of the internal threaded sleeve (10); A movable seat (12) fixedly connected to the external magnet (2) is installed on the inner side of each of the plurality of assembly grooves (6), guide blocks (13) slidably connected to the guide groove (7) are installed on the outer walls on both sides of the movable seat (12), and an adjustment column head (14) slidably connected to the spiral adjustment groove (9) is installed at one end of the movable seat (12) away from the external magnet (2).

2. A magnetic coupling for rail transit according to claim 1, characterized in that: A locking screw (15) is threadedly connected to the end of the internal threaded sleeve (10).

3. A magnetic coupling for rail transit according to claim 2, characterized in that: A gasket (16) is sleeved on the locking screw (15), and the gasket (16) abuts against the nut of the locking screw (15) and the connecting seat (5) respectively.

4. The magnetic coupling for rail transit according to claim 1, characterized in that: A connecting block is fixedly connected between the outer wall of the connecting seat (5) and the inner wall of the cover shell (4), and a plurality of the connecting blocks are arranged at radial positions of the cover shell (4).

5. The magnetic coupling for rail transit according to claim 1, characterized in that: Specifically, three assembly grooves (6) are provided, and the angle between two adjacent assembly grooves (6) and the axis of the connecting seat (5) is 120°.

6. The magnetic coupling for rail transit according to claim 1, characterized in that: An axial hole is provided at the junction of the connecting seat (5) and the internally threaded shaft sleeve (10).

7. The magnetic coupling for rail transit according to claim 1, characterized in that: The guide block (13) is clearance-matched with the guide groove (7), and the adjustment column head (14) is clearance-matched with the adjustment column head (14).

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