Mounting structure of overspeed switch and encoder combined all-in-one machine for motor

Abstract

The utility model relates to an overspeed switch and encoder combined all-in-one machine installation structure for a motor, which comprises a motor body, a motor rotating shaft of the motor body is supported by a bearing device, a bearing outer cover is installed at the outer end of the bearing device, and an inner hole of the bearing outer cover is connected with the motor rotating shaft through a sealing ring in a matched mode. The outer end face of the bearing outer cover is provided with a connecting base through a fastener, a plurality of fixing screw holes are formed in the circumferential direction of the outer end face of the motor rotating shaft, a boss is arranged in the middle of the outer end face of the motor rotating shaft, the circumferential face of the boss and the outer end face of the motor rotating shaft form a first matching face, and the boss is sleeved with a small transmission shaft. The elastic coupler is installed on the outer end face of the small transmission shaft through the flat key and the screw, the overspeed switch and encoder combined all-in-one machine is installed after the elastic coupler penetrates through the connecting base, meanwhile, the overspeed switch and encoder combined all-in-one machine is locked with the connecting base through the fastener, the structure is simple and reliable, maintenance is convenient, and the service life of the control unit is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motor installation structures, in particular to an installation structure of an overspeed switch encoder combined all-in-one machine for a motor. Background Art

[0002] At present, with the development of industry, the requirements for motor speed control are getting higher and higher in some applications. Encoders are the most commonly used control components in motor control, which can accurately record the position and speed information of the motor. In some occasions, the speed of the motor also needs to be controlled, such as the motor used in tower cranes. In order to ensure safe and smooth take-off and landing during the hoisting process, an overspeed switch is added to the motor control unit to prevent the motor from overspeeding. It is difficult to install the two control units of the overspeed switch and encoder on the motor, but with the upgrade of the control components, the overspeed switch and encoder can be combined into one machine. Utility Model Content

[0003] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides an installation structure of an overspeed switch encoder combination for a motor, which is not only simple and reliable in structure and easy to maintain, but also prolongs the service life of the control unit.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A motor overspeed switch encoder combination all-in-one installation structure comprises a motor body, wherein the motor shaft of the motor body is supported by a bearing device, a bearing outer cover is installed at the outer end position of the bearing device, the inner hole of the bearing outer cover is matched and connected with the motor shaft through a sealing ring, the outer end surface of the bearing outer cover is installed with a connecting seat through a fastener, a plurality of fixing screw holes are opened in the circumferential direction of the outer end surface of the motor shaft, a boss is arranged at the middle position of the outer end surface of the motor shaft, the circumferential surface of the boss and the outer end surface of the motor shaft form a first matching surface, a transmission shaft is sleeved on the boss, an elastic coupling is installed on the outer end surface of the transmission shaft through a flat key and a screw, the elastic coupling passes through the connecting seat and then the overspeed switch encoder combination all-in-one is installed, and the overspeed switch encoder combination all-in-one is locked with the connecting seat through the fastener.

[0006] As a further improvement of the above technical solution:

[0007] There are three fixing screw holes evenly spaced apart in the circumferential direction.

[0008] The transmission shaft is an integrated structure.

[0009] The transmission shaft is a transverse "T"-shaped structure.

[0010] The end face of the transmission shaft is provided with a pit, a second mating surface matching the first mating surface is formed at the pit, a fixing hole corresponding to the fixing screw hole is opened in the circumferential direction of the transmission shaft, and a keyway is provided at the end of the transmission shaft.

[0011] The fixing hole is a stepped hole.

[0012] The structure of the connecting seat is as follows: it includes a connecting seat body, one end of the connecting seat body is provided with a connecting hole that cooperates with the bearing outer cover, the other end of the connecting seat body is provided with an overspeed switch encoder mounting screw hole, the middle part of the connecting seat body is a hollow structure, a notch is provided on the circumference of the connecting seat body, and a through hole is provided on the end face where the overspeed switch encoder mounting screw hole is provided.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model has a compact and reasonable structure and is easy to operate. Through the cooperation between the motor shaft, the transmission shaft, the connecting seat, the bearing outer cover, the elastic coupling and other components, the overspeed switch encoder combination all-in-one machine can be conveniently installed. The overall installation is convenient, the operation is reliable and the maintenance is convenient, and the service life of the control unit is also improved.

[0015] The utility model has strong versatility and low cost, and can be assembled by replacing corresponding transmission small shafts, elastic couplings and connecting seats according to the selection of the overspeed switch encoder combined all-in-one machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a partial view of the utility model.

[0018] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0019] Figure 4 It is a structural schematic diagram of the motor shaft of the utility model.

[0020] Figure 5 for Figure 5 F direction view.

[0021] Figure 6 It is a structural schematic diagram of the transmission small shaft of the utility model.

[0022] Figure 7 It is a structural schematic diagram of the connecting seat of the utility model.

[0023] Among them: 1. Motor body; 2. Motor shaft; 3. Bearing cover; 4. Connecting seat; 5. Transmission shaft; 6. Elastic coupling; 7. Flat key; 8. Screw; 9. Overspeed switch encoder combination machine;

[0024] 201, fixing screw hole; 202, first matching surface;

[0025] 401, connecting seat body; 402, overspeed switch encoder mounting screw hole; 403, hollow structure; 404, notch; 405, connecting hole;

[0026] 501, second mating surface; 502, keyway; 503, fixing hole. DETAILED DESCRIPTION

[0027] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 7 As shown, the installation structure of the motor overspeed switch encoder combination machine of this embodiment includes a motor body 1, the motor shaft 2 of the motor body 1 is supported by a bearing device, a bearing outer cover 3 is installed at the outer end position of the bearing device, the inner hole of the bearing outer cover 3 is connected to the motor shaft 2 through a sealing ring, the outer end surface of the bearing outer cover 3 is installed with a connecting seat 4 through a fastener, a plurality of fixing screw holes 201 are opened in the circumferential direction of the outer end surface of the motor shaft 2, a boss is arranged at the middle position of the outer end surface of the motor shaft 2, the circumferential surface of the boss and the outer end surface of the motor shaft 2 form a first matching surface 202, a transmission shaft 5 is sleeved on the boss, and an elastic coupling 6 is installed on the outer end surface of the transmission shaft 5 through a flat key 7 and a screw 8, the elastic coupling 6 passes through the connecting seat 4 and then the overspeed switch encoder combination machine 9 is installed, and the overspeed switch encoder combination machine 9 is locked with the connecting seat 4 through the fastener.

[0029] There are three fixing screw holes 201 evenly spaced apart in the circumferential direction.

[0030] The transmission shaft 5 is an integrated structure.

[0031] The transmission shaft 5 is in a transverse "T"-shaped structure.

[0032] The end face of the transmission shaft 5 is provided with a pit, and a second mating surface 501 matching the first mating surface 202 is formed at the pit. A fixing hole 503 corresponding to the fixing screw hole 201 is opened in the circumferential direction of the transmission shaft 5, and a keyway 502 is provided at the end of the transmission shaft 5.

[0033] The fixing hole 503 is a stepped hole.

[0034] The structure of the connecting seat 4 is as follows: it includes a connecting seat body 401, one end of the connecting seat body 401 is provided with a connecting hole 405 that cooperates with the bearing outer cover 3, the other end of the connecting seat body 401 is provided with an overspeed switch encoder mounting screw hole 402, the middle part of the connecting seat body 401 is a hollow structure 403, a notch 404 is provided on the circumference of the connecting seat body 401, and a through hole is provided on the end face where the overspeed switch encoder mounting screw hole 402 is provided.

[0035] The utility model processes a fixing screw hole 201 and a boss matched with the transmission shaft 5 on the end face of the motor shaft 2, and a first matching surface 202 is formed at the boss. The boss can effectively improve the concentricity of the motor shaft 2 and the transmission shaft 5 after assembly.

[0036] The utility model has a threaded hole and an installation matching groove for fixing the connecting seat 4 processed on the bearing outer cover 3, and a screw hole and an installation matching groove for fixing the overspeed switch encoder combination all-in-one machine 9 processed on the other side of the connecting seat 4. The processing of the installation matching groove can effectively improve the concentricity of the bearing outer cover 3, the connecting seat 4 and the overspeed switch encoder combination all-in-one machine 9 after assembly.

[0037] In the present invention, a notch 404 is processed on the circumference of the connecting seat 4 to facilitate the adjustment and fastening of the elastic coupling 6 .

[0038] The utility model has a keyway 502 processed on the transmission shaft 5, and the transmission shaft 5 and the overspeed switch encoder combination machine 9 are connected to transmit power through an elastic coupling 6. A transmission key is installed between the elastic coupling 6 and the transmission shaft 5, and the key can better transmit power. The elastic coupling 6 is also equipped with a screw 8, and the screw 8 is tightened after adjustment.

[0039] The utility model has the advantages of convenient overall assembly and maintenance, strong interchangeability, simple installation structure, high reliability and low cost.

[0040] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A motor overspeed switch encoder combination integrated installation structure, comprising a motor body (1), wherein a motor shaft (2) of the motor body (1) is supported by a bearing device, and characterized in that: A bearing outer cover (3) is installed at the outer end of the bearing device. The inner hole of the bearing outer cover (3) is connected to the motor shaft (2) through a sealing ring. A connecting seat (4) is installed on the outer end surface of the bearing outer cover (3) through a fastener. A plurality of fixing screw holes (201) are opened in the circumferential direction of the outer end surface of the motor shaft (2). A boss is arranged at the middle position of the outer end surface of the motor shaft (2). The circumferential surface of the boss and the outer end surface of the motor shaft (2) form a first matching surface (202). A transmission shaft (5) is sleeved on the boss. An elastic coupling (6) is installed on the outer end surface of the transmission shaft (5) through a flat key (7) and a screw (8). After the elastic coupling (6) passes through the connecting seat (4), an overspeed switch encoder combined machine (9) is installed. At the same time, the overspeed switch encoder combined machine (9) is locked with the connecting seat (4) through the fastener.

2. The motor overspeed switch encoder combination integrated installation structure as claimed in claim 1, characterized in that: There are three fixing screw holes (201) evenly spaced apart in the circumferential direction.

3. The motor overspeed switch encoder combination integrated installation structure as claimed in claim 1, characterized in that: The transmission shaft (5) is an integrated structure.

4. The motor overspeed switch encoder combination integrated installation structure as claimed in claim 1, characterized in that: The transmission shaft (5) is in a transverse "T"-shaped structure.

5. The motor overspeed switch encoder combination integrated installation structure as claimed in claim 1, characterized in that: The end surface of the transmission shaft (5) is provided with a concave pit, a second mating surface (501) matching the first mating surface (202) is formed at the concave pit, a fixing hole (503) corresponding to the fixing screw hole (201) is opened in the circumferential direction of the transmission shaft (5), and a keyway (502) is provided at the end of the transmission shaft (5).

6. The motor overspeed switch encoder combination integrated installation structure as claimed in claim 5, characterized in that: The fixing hole (503) is a stepped hole.

7. The motor overspeed switch encoder combination integrated installation structure as claimed in claim 1, characterized in that: The structure of the connecting seat (4) is as follows: it includes a connecting seat body (401), one end of the connecting seat body (401) is provided with a connecting hole (405) that matches with the bearing outer cover (3), the other end of the connecting seat body (401) is provided with an overspeed switch encoder mounting screw hole (402), the middle part of the connecting seat body (401) is a hollow structure (403), a notch (404) is provided on the circumference of the connecting seat body (401), and a through hole is provided on the end surface where the overspeed switch encoder mounting screw hole (402) is provided.

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