Motor shaft coupling reassembling tool

Abstract

The utility model discloses a motor shaft coupling reinstallation tool which comprises an ejector rod piece, a plurality of hanging rod sets and a plurality of magnetic attraction pieces, a plurality of swing lugs are arranged on the ejector rod piece at intervals in the annular direction, the swing lugs and the magnetic attraction pieces are in one-to-one correspondence with the hanging rod sets respectively, the ejector rod piece is provided with an ejection end, and an abutting block is arranged at the ejection end of the ejector rod piece. The multiple hanging rod sets are evenly distributed around the ejection end of the ejection rod piece in the annular direction at intervals, one end of each hanging rod set is connected with the corresponding swing lug in a swing mode, and each magnetic attraction piece is arranged at the other end of the corresponding hanging rod set, so that the whole motor shaft coupler reinstallation tool is equivalent to a puller, and the tool is convenient to use. Wherein the coupling can be preassembled at the end part of the motor driving shaft, the plurality of magnetic attraction pieces are attracted with a shell of the motor, the abutting block at the ejection end of the ejection rod piece is attached to the coupling, and then the ejection rod piece drives the ejection end of the ejection rod piece to move so as to slowly extrude the coupling until the coupling is completely sleeved with the motor driving shaft.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary tooling, and in particular relates to a motor shaft coupling reinstallation tool. Background Art

[0002] In accordance with the equipment maintenance and management specifications, the Sichuan-Eastern Gas Pipeline requires that the station's circulating water system, lubricating oil system, sprinkler pump system and fire protection system all have pumps to provide power systems. However, if the pump's coupling is damaged during operation due to factors such as excessive rated current or impurities in the medium, the station needs to dismantle the pump and replace the damaged coupling. When the coupling is reinstalled, the inner diameter of the coupling is consistent with the outer diameter of the bearing. During the reinstallation operation, the coupling needs to be heated in advance to expand the coupling until the inner hole diameter increases. Then one person fixes the pump while the other uses a copper hammer to hammer the coupling into the outside of the bearing. At this time, there is a risk that the operator will damage the coupling due to uneven force on the surface of the coupling due to uneven impact. In addition, the temperature cannot be fully controlled when using fire, and there is a risk of damage due to reduced carbon content of the coupling. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a reinstallation tool which has a simple structure and is easy to use and can conveniently reinstall the coupling on the motor shaft end.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a motor shaft coupling reinstallation tool, comprising a push rod member, a plurality of hanging rod groups and a plurality of magnetic parts, the push rod member is provided with a plurality of swing ears at circumferential intervals, the plurality of swing ears and the plurality of magnetic parts respectively correspond to the plurality of hanging rod groups one by one, the push rod member has a push-out end, abutment blocks are provided at the push-out end, the plurality of hanging rod groups are evenly distributed circumferentially around the push-out end of the push rod member, one end of each of the hanging rod groups is swingably connected to the corresponding swing ear, and each of the magnetic parts is provided at the other end of the corresponding hanging rod group.

[0005] The beneficial effect of the above technical solution is that the entire motor shaft coupling reinstallation tool is equivalent to a puller, wherein the coupling can be pre-installed on the end of the motor drive shaft, multiple magnetic parts are attracted to the housing of the motor, and the abutment block at the ejection end of the ejector rod is fitted with the coupling, and then the ejector rod drives its ejection end to move and slowly squeeze the coupling until it is completely fitted with the motor drive shaft.

[0006] The top rod member described in the above technical solution is a telescopic member.

[0007] The beneficial effects of the above technical solution are: its structure is simple and easy to operate.

[0008] The ejector member in the above technical solution includes a connecting ring and a screw rod. The inner hole of the connecting ring is provided with an internal thread that cooperates with the screw rod thread. A plurality of swing earrings are evenly spaced on the outer wall of the connecting ring. One end of the screw rod is the ejection end, and the other end thereof is provided with a twisting head.

[0009] The beneficial effect of the above technical solution is that the top rod can be used to rotate the screw rod relative to the connecting ring by twisting the head with the help of a tool, so as to squeeze the coupling sleeve onto the drive shaft of the motor or make the ground block retreat.

[0010] The twisting head in the above technical solution is a regular hexagonal column or a prying ring with an inner hole perpendicular to the screw rod.

[0011] The beneficial effect of the above technical solution is that when the turning head is a regular hexagonal column, the screw rod and the turning head are equivalent to a bolt, and when the turning head is a prying ring, a pry bar needs to be inserted into the turning head and pried through the screw rod to rotate.

[0012] The magnetic attraction member described in the above technical solution is a magnetic switch.

[0013] The beneficial effect of the above technical solution is that it has a strong magnetic attraction force and is not easy to loosen when it is attracted to the motor housing.

[0014] In the above technical solution, at least three hooking rod groups are provided.

[0015] The beneficial effect of the above technical solution is that: in this way, the motor shaft coupling reinstallation tool has good suction stability on the motor housing.

[0016] The number of the hooking rod groups in the above technical solution is 3-6.

[0017] The beneficial effect of the above technical solution is that it makes the structure simple and provides a circumferentially uniform reverse abutment force for the top rod.

[0018] The hook rod group in the above technical solution includes a connecting rod and a hook rod, one end of the connecting rod is swingably connected to one end of the hook rod, the other end of the connecting rod is swingably connected to the corresponding swing ear, and the magnetic attraction part is arranged at the other end of the hook rod.

[0019] The beneficial effect of the above technical solution is that its structure is simple, so that when the length of the top rod changes, the length of the hanging rod group can be adaptively changed to ensure a good connection effect with the motor housing.

[0020] In the above technical solution, a plurality of first pin holes are arranged on the connecting rod along its length direction, and a plurality of second pin holes are arranged on the hanging rod along its length direction. Any one of the first pin holes on the connecting rod is aligned with any one of the second pin holes on the hanging rod and a pin shaft is inserted to swing and connect.

[0021] The beneficial effect of the above technical solution is that: its structure is simple, so the length of the hook rod group can be adjusted in advance according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A side view of the motor shaft coupling reinstallation tool described in Example 1 of the utility model;

[0023] Figure 2 Another side view of the motor shaft coupling reinstallation tool described in Example 1 of the utility model;

[0024] Figure 3 It is a top view of the connecting ring and three hooking rod groups described in Example 1 of the utility model;

[0025] Figure 4 This is a schematic diagram of the assembly of the motor shaft coupling reinstallation tool, the motor and the coupling described in Example 1 of the utility model;

[0026] Figure 5 This is a side view of the motor shaft coupling reinstallation tool described in Example 2 of the utility model.

[0027] In the figure: 1. push rod; 11. connecting ring; 111. swing ear; 12. screw rod; 13. twist head; 2. hanging rod group; 21. connecting rod; 211. first pin hole; 22. hanging rod; 221. second pin hole; 23. pin shaft; 3. magnetic attraction member; 4. abutment block; 5. motor; 6. coupling. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be more clearly described. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0029] Example 1

[0030] like Figure 1-Figure 4As shown, this embodiment provides a motor shaft coupling reinstallation tool, including a push rod 1, a plurality of hanging rod groups 2 and a plurality of magnetic suction members 3, the push rod 1 is provided with a plurality of swing ears 111 at intervals in the annular direction, the plurality of swing ears 111 and the plurality of magnetic suction members 3 correspond to the plurality of hanging rod groups 2 respectively, the push rod 1 has a push-out end, and an abutment block 4 is provided at the push-out end, the plurality of hanging rod groups 2 are evenly distributed in the annular direction around the push-out end of the push rod 1, and each of the plurality of hanging rod groups 2 is evenly distributed in the annular direction around the push-out end of the push rod 1, and each of the plurality of hanging rod groups 2 is evenly distributed in the annular direction around the push-out end of the push rod 1. One end of the hanging rod group 2 is swingably connected to the corresponding swing ear 111, and each of the magnetic parts 3 is arranged at the other end of the corresponding hanging rod group 2, so that the entire motor shaft coupling reinstallation tool is equivalent to a puller, wherein the coupling can be pre-installed at the end of the motor drive shaft, and multiple magnetic parts are attracted to the housing of the motor, and the abutment block of the ejection end of the ejector rod is fitted with the coupling, and then the ejector rod drives its ejection end to move and slowly squeeze the coupling until it is completely fitted with the motor drive shaft.

[0031] like Figure 1 and Figure 2 As shown, the push rod 1 in the above technical solution includes a connecting ring 11 and a screw rod 12, the inner hole of the connecting ring 11 is provided with an internal thread matched with the thread of the screw rod 12, a plurality of the swing ears 111 are circumferentially evenly spaced and arranged on the outer wall of the connecting ring 11, one end of the screw rod 12 is a ejection end, and the other end thereof is provided with a twisting head 13, so that the push rod can make the screw rod rotate forward or reverse relative to the connecting ring by twisting the head with the help of a tool, so as to squeeze the coupling 6 to be sleeved on the driving shaft of the motor 5, or to make the ground block retreat.

[0032] The twisting head 13 in the above technical solution is a regular hexagonal column (such as Figure 1 As shown,) or a pry ring with an inner hole perpendicular to the screw rod 12 (as shown Figure 2 As shown in the figure, when the turning head is a regular hexagonal column, the screw rod and the turning head are equivalent to a bolt, and when the turning head is a pry ring, a pry bar is required to be inserted into the turning head and pry it through the screw rod to rotate.

[0033] The magnetic attraction member 3 in the above technical solution is a magnetic switch, which has a strong magnetic attraction force and is not easy to loosen when it is attracted to the motor housing.

[0034] like Figure 3 As shown, in the above technical solution, at least three hooking rod groups 2 are provided, so that the motor shaft coupling reinstallation tool has good suction stability on the motor housing. Preferably, 3-6 hooking rod groups 2 are provided, so that its structure is simple and a circumferentially uniform reverse abutment force is provided for the top rod. More preferably, three hooking rod groups are provided.

[0035] like Figure 1 and Figure 2 As shown, the hooking rod group 2 in the above technical solution includes a connecting rod 21 and a hooking rod 22, one end of the connecting rod 21 is swingably connected to one end of the hooking rod 22, the other end of the connecting rod 21 is swingably connected to the corresponding swing ear 111, and the magnetic suction member 3 is arranged at the other end of the hooking rod 22, and its structure is simple, so that the length of the hooking rod group can be adaptively changed when the length of the top rod changes to ensure a good connection effect with the motor housing.

[0036] In the above technical solution, a plurality of first pin holes 211 are arranged on the connecting rod 21 along its length direction, and a plurality of second pin holes 221 are arranged on the hanging rod 22 along its length direction. Any one of the first pin holes 211 on the connecting rod 21 is aligned with any one of the second pin holes 221 on the hanging rod 22 and the pin shaft 23 is inserted to swing and connect. The structure is simple, so the length of the hanging rod group can be adjusted in advance according to needs. The pin shaft 23 can be a steel ball pin. The swing connection method of the swing ear and the connecting rod belongs to the existing technology and will not be repeated here.

[0037] In this embodiment, the abutment block may be in a pancake shape and coaxially mounted on the corresponding end of the screw rod. Preferably, the abutment block may be coaxially rotatably mounted on one end of the screw rod. In this case, when the screw rod rotates, the abutment block does not need to rotate (to avoid hard friction with the coupling).

[0038] The motor shaft coupling reinstallation tool provided in this embodiment is similar to the structure of a puller, but it is connected by a magnetic attraction member and a carrier, and the ejection end of the ejector rod is in contact with the coupling to be installed. Of course, the motor shaft coupling reinstallation tool can also be used to install gears or pulleys on the drive shaft of the motor.

[0039] Example 2

[0040] Same as Example 1, except that Figure 5 As shown, the push rod 1 is a telescopic member with a simple structure and convenient operation. In this embodiment, the push rod can be a jack or a hydraulic cylinder, and the swing ear is arranged on its cylinder sleeve.

[0041] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A motor shaft coupling reinstallation tool, characterized in that: The invention comprises a push rod member (1), a plurality of hanging rod groups (2) and a plurality of magnetic attracting members (3); a plurality of swing ears (111) are arranged circumferentially at intervals on the push rod member (1); the plurality of swing ears (111) and the plurality of magnetic attracting members (3) correspond to the plurality of hanging rod groups (2) one by one respectively; the push rod member (1) has a push-out end, at which a contact block (4) is arranged; the plurality of hanging rod groups (2) are evenly distributed circumferentially at intervals around the push-out end of the push rod member (1); one end of each hanging rod group (2) is swingably connected to the corresponding swing ear (111); and each magnetic attracting member (3) is arranged at the other end of the corresponding hanging rod group (2).

2. The motor shaft coupling reinstallation tool according to claim 1, characterized in that: The top rod (1) is a telescopic member.

3. The motor shaft coupling reinstallation tool according to claim 1, characterized in that: The ejector member (1) comprises a connecting ring (11) and a screw rod (12); the inner hole of the connecting ring (11) is provided with an inner thread that matches the thread of the screw rod (12); a plurality of swing ears (111) are evenly spaced circumferentially arranged on the outer wall of the connecting ring (11); one end of the screw rod (12) is an ejection end, and the other end thereof is provided with a twisting head (13).

4. The motor shaft coupling reinstallation tool according to claim 3, characterized in that: The twisting head (13) is a regular hexagonal column or a prying ring with an inner hole perpendicular to the screw rod (12).

5. The motor shaft coupling reinstallation tool according to claim 1, characterized in that: The magnetic attraction member (3) is a magnetic switch.

6. The motor shaft coupling reinstallation tool according to claim 1, characterized in that: At least three of the hook rod groups (2) are provided.

7. The motor shaft coupling reinstallation tool according to claim 6, characterized in that: The number of the hooking rod groups (2) is 3 to 6.

8. The motor shaft coupling reinstallation tool according to any one of claims 1 to 7, characterized in that: The hook rod group (2) comprises a connecting rod (21) and a hook rod (22); one end of the connecting rod (21) is swingably connected to one end of the hook rod (22); the other end of the connecting rod (21) is swingably connected to the corresponding swing ear (111); and the magnetic attraction member (3) is arranged at the other end of the hook rod (22).

9. The motor shaft coupling reinstallation tool according to claim 8, characterized in that: The connecting rod (21) is provided with a plurality of first pin holes (211) along its length direction, and the connecting rod (22) is provided with a plurality of second pin holes (221) along its length direction. Any one of the first pin holes (211) on the connecting rod (21) is aligned with any one of the second pin holes (221) on the connecting rod (22) and a pin shaft (23) is inserted therein to achieve a swing connection.

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