CN218678747U - Squirrel-cage motor grounding device - Google Patents

Abstract

The utility model provides a squirrel-cage motor earthing device. The squirrel-cage motor grounding device comprises: a housing; the limiting groove is formed in the inner wall of the shell; the sliding groove is formed in the shell; the bidirectional screw is rotatably arranged on the inner wall of the shell; the two sliding plates are sleeved on the two-way screw rod in a threaded manner, are connected with the inner walls on the two sides of the limiting groove in a sliding manner, and are connected with the inner walls on the two sides of the sliding groove in a sliding manner; the two L-shaped frames are fixedly arranged on one sides, far away from each other, of the two sliding plates respectively. The utility model provides a squirrel-cage motor earthing device has the installation and dismantles comparatively convenient, be applicable to not equidimension squirrel-cage motor, operates comparatively convenient advantage.

Description

A squirrel cage motor grounding device

technical field

The utility model relates to the technical field of squirrel-cage motors, in particular to a grounding device for squirrel-cage motors.

Background technique

The rotor winding of the squirrel-cage motor is not made of insulated wires, but aluminum strips or copper strips and short-circuit rings are welded or cast. The three-phase asynchronous motor is called a squirrel-cage motor. The squirrel-cage motor is a kind of three-phase asynchronous motor, and the three-phase asynchronous motor is divided into a squirrel-cage motor and a wound motor. The squirrel-cage motor needs to be installed with a grounding device for grounding when in use.

However, in the existing grounding device, the grounding wire is usually welded on the shell of the squirrel-cage motor, so the existing grounding device often has the problem of inconvenient installation and disassembly.

Therefore, it is necessary to provide a squirrel-cage motor grounding device to solve the above technical problems.

Utility model content

The technical problem solved by the utility model is to provide a squirrel-cage motor grounding device which is convenient to install and disassemble, suitable for different sizes of squirrel-cage motors and easy to operate.

In order to solve the above-mentioned technical problems, the squirrel-cage motor grounding device provided by the utility model includes: a housing; a limiting groove, which is set on the inner wall of the housing; On the housing; a two-way screw, the two-way screw is rotatably mounted on the inner wall of the housing; two sliding plates, the two sliding plates are threaded on the two-way screw, and the two The sliding plates are all slidably connected to the inner walls on both sides of the limiting groove, and the two sliding plates are all slidably connected to the inner walls on both sides of the sliding groove; two L-shaped frames, and the two L-shaped frames are respectively fixed Installed on the side where the two sliding plates are far away from each other; two conductive clamping mechanisms, the two conductive clamping mechanisms are respectively arranged on the two L-shaped frames; two rebound mechanisms, the two The rebound mechanism is respectively arranged on the two conductive clamping mechanisms.

Preferably, the conductive clamping mechanism includes a plurality of sliding rods and arc-shaped conductive plates, the plurality of sliding rods are all slidably installed on the L-shaped frame, and the arc-shaped conductive plates are fixedly installed on the plurality of end of the slider.

Preferably, the rebound mechanism cover plate and a plurality of springs, the cover plate is fixedly sleeved on the plurality of sliding rods, and the plurality of springs are respectively slidingly sleeved on the plurality of sliding rods.

Preferably, the same ground wire is provided on the two arc-shaped conductive plates.

Preferably, one end of the ground wire is provided with a ground metal plate, and a plurality of installation grooves are opened on the ground metal plate, and fixing cones are arranged on each of the plurality of installation grooves.

Preferably, a handwheel is fixedly installed at one end of the two-way screw.

Compared with related technologies, the squirrel-cage motor grounding device provided by the utility model has the following beneficial effects:

The utility model provides a squirrel-cage motor grounding device, which can drive two sliding plates and two L-shaped frames to approach or move away from each other through the rotation of a two-way screw, thereby facilitating the installation and disassembly of the device. The squirrel-cage motor can be clamped and fixed, and the two arc-shaped conductive plates can be in close contact with the squirrel-cage motor through two rebound mechanisms. A plurality of fixed cones can ground the casing of the squirrel-cage motor, and the two-way screw can be driven to rotate through the hand wheel.

Description of drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the squirrel-cage motor grounding device provided by the utility model;

Figure 2 is an enlarged schematic view of part A shown in Figure 1;

FIG. 3 is an enlarged schematic diagram of part B shown in FIG. 1 .

Symbols in the figure: 1. Shell; 2. Limiting groove; 3. Sliding groove; 4. Two-way screw; 5. Sliding plate; 6. L-shaped frame; 7. Sliding rod; 8. Arc-shaped conductive plate; 9. Cover plate; 10, spring; 11, ground wire; 12, ground metal plate; 13, installation slot; 14, fixed cone; 15, hand wheel.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Please refer to Fig. 1-3 in conjunction with, wherein, Fig. 1 is the structure diagram of a kind of preferred embodiment of the squirrel-cage motor grounding device provided by the utility model; Fig. 2 is the enlarged schematic diagram of part A shown in Fig. 1; Fig. 3 is an enlarged schematic diagram of part B shown in FIG. 1 . The squirrel-cage motor grounding device includes: a housing 1; a limiting groove 2, which is set on the inner wall of the housing 1; a sliding groove 3, which is set on the housing 1 on the two-way screw 4, the two-way screw 4 is rotatably mounted on the inner wall of the housing 1; two sliding plates 5, the two sliding plates 5 are threaded on the two-way screw 4, two The sliding plates 5 are all slidably connected to the inner walls on both sides of the limiting groove 2, and the two sliding plates 5 are all slidably connected to the inner walls on both sides of the sliding groove 3; two L-shaped frames 6, two The L-shaped frames 6 are respectively fixedly installed on the sides where the two sliding plates 5 are far away from each other; two conductive clamping mechanisms, the two conductive clamping mechanisms are respectively arranged on the two L-shaped frames 6 Two rebound mechanisms, the two rebound mechanisms are respectively arranged on the two conductive clamping mechanisms, and the rotation of the two-way screw 4 can drive the two sliding plates 5 and the two L-shaped frames 6 to approach or move away from each other , so as to facilitate the installation and disassembly of the device, the squirrel-cage motor can be clamped and fixed by two conductive clamping mechanisms, and the two arc-shaped conductive plates 8 can be closely connected to the squirrel-cage motor by two rebound mechanisms s contact.

The conductive clamping mechanism includes a plurality of sliding rods 7 and arc-shaped conductive plates 8, and the plurality of sliding rods 7 are all slidably installed on the L-shaped frame 6, and the arc-shaped conductive plates 8 are fixedly installed on a plurality of One end of the sliding rod 7 can clamp and fix the squirrel-cage motor through two conductive clamping mechanisms.

The rebound mechanism cover plate 9 and a plurality of springs 10, the cover plate 9 is fixedly sleeved on the plurality of the sliding rods 7, and the plurality of the springs 10 are respectively slidably sleeved on the plurality of the sliding rods 7 On the other hand, the two arc-shaped conductive plates 8 can be brought into relatively close contact with the squirrel-cage motor through the two rebound mechanisms.

The two arc-shaped conductive plates 8 are provided with the same ground wire 11, and the casing of the squirrel-cage motor can be grounded through the two arc-shaped conductive plates 8, the ground wire 11, the ground metal plate 12 and a plurality of fixing cones 14 .

One end of the grounding wire 11 is provided with a grounding metal plate 12, the grounding metal plate 12 is provided with a plurality of mounting grooves 13, and a plurality of mounting grooves 13 are provided with a fixed cone 14, which conducts electricity through two arcs. The plate 8, the grounding wire 11, the grounding metal plate 12 and the plurality of fixing cones 14 enable grounding of the housing of the squirrel-cage motor.

One end of the two-way screw 4 is fixedly equipped with a handwheel 15, and the two-way screw 4 can be driven to rotate by the handwheel 15.

The working principle of the squirrel-cage motor grounding device provided by the utility model is as follows:

When installing, place two arc-shaped conductive plates 8 on both sides of the squirrel-cage motor, then shake the hand wheel 15, the hand wheel 15 drives the two-way screw 4 to rotate, and the two-way screw 4 rotates to drive the two sliding plates 5 and two L The frame 6 is close to each other, and the two L-shaped frames 6 indirectly drive the two arc-shaped conductive plates 8 to approach each other, and the squirrel-cage motor is clamped by the two arc-shaped conductive plates 8 that are close to each other, and the squirrel-cage motor is clamped by multiple springs 10 times. The bullet can make the two arc-shaped conductive plates 8 be in close contact with the squirrel-cage motor, and then the ground metal plate 12 is fixed on the ground through a plurality of fixing cones 14, and the two arc-shaped conductive plates 8, the ground wire 11, and the ground A metal plate 12 and a plurality of fixing cones 14 enable grounding of the housing of the squirrel-cage motor.

Compared with related technologies, the squirrel-cage motor grounding device provided by the utility model has the following beneficial effects:

The utility model provides a squirrel-cage motor grounding device, which can drive two sliding plates 5 and two L-shaped frames 6 to approach or move away from each other through the rotation of the two-way screw 4, thereby facilitating the installation and disassembly of the device. The clamping mechanism can clamp and fix the squirrel-cage motor, and the two arc-shaped conductive plates 8 can be brought into close contact with the squirrel-cage motor through two rebound mechanisms. 11. The grounding metal plate 12 and a plurality of fixing cones 14 can ground the shell of the squirrel-cage motor, and the two-way screw 4 can be driven to rotate through the hand wheel 15 .

The above descriptions are only examples of the utility model, and are not intended to limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made by using the utility model specification and accompanying drawings may be directly or indirectly used in other applications. Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (6)

1. A squirrel cage motor grounding device, comprising:

a housing (1);

the limiting groove (2) is formed in the inner wall of the shell (1);

the sliding groove (3) is formed in the shell (1);

the bidirectional screw (4), the said bidirectional screw (4) is installed on inboard wall of the said body (1) rotatably;

the two sliding plates (5) are sleeved on the two-way screw (4) in a threaded manner, the two sliding plates (5) are connected with the inner walls of the two sides of the limiting groove (2) in a sliding manner, and the two sliding plates (5) are connected with the inner walls of the two sides of the sliding groove (3) in a sliding manner;

the two L-shaped frames (6) are respectively fixedly arranged on one sides, far away from each other, of the two sliding plates (5);

the two conductive clamping mechanisms are respectively arranged on the two L-shaped frames (6);

and the two springback mechanisms are respectively arranged on the two conductive clamping mechanisms.

2. The grounding device of the squirrel-cage motor as claimed in claim 1, characterized in that the conductive clamping mechanism comprises a plurality of sliding rods (7) and arc-shaped conductive plates (8), the sliding rods (7) are all slidably mounted on the L-shaped frame (6), and the arc-shaped conductive plates (8) are fixedly mounted at one ends of the sliding rods (7).

3. The grounding device of a squirrel-cage motor as claimed in claim 2, characterized in that the springback mechanism sleeve plate (9) and a plurality of springs (10), the sleeve plate (9) is fixedly sleeved on the plurality of sliding rods (7), and the plurality of springs (10) are respectively slidably sleeved on the plurality of sliding rods (7).

4. The grounding device of a squirrel-cage motor as claimed in claim 2, characterized in that the same grounding wire (11) is provided on both said arc-shaped conductive plates (8).

5. The grounding device of the squirrel-cage motor as claimed in claim 4, wherein one end of the grounding wire (11) is provided with a grounding metal plate (12), the grounding metal plate (12) is provided with a plurality of mounting grooves (13), and a plurality of mounting grooves (13) are provided with fixing cones (14).

6. The grounding device of the squirrel-cage motor as claimed in claim 1, characterized in that a hand wheel (15) is fixedly mounted at one end of the bidirectional screw (4).

Images