Height-adjustable sound listening device

Abstract

The utility model provides a sound listening device with an adjustable height, and relates to the field of motor detection. The objective table is arranged on the lifting mechanism, and the lifting mechanism drives the objective table to ascend and descend; the jig is fixed to the objective table, and the jig is used for fixing the motor pattern nozzle, in the application, the objective table is driven to ascend and descend through the lifting mechanism, so that the motor located on the objective table can be adaptively adjusted according to the height of an inspector, and the inspector can conveniently keep a standing posture when hearing for inspection; the situation that an inspector gets close to the motor subconsciously to cause danger is avoided, meanwhile, the inspector keeps a standing posture and does not need to bend down frequently, and the lumbar vertebra is protected.

Description

Technical Field

[0001] The utility model relates to the field of motor detection, and particularly relates to a sound listening device with adjustable height. Background Art

[0002] Sound listening inspection is a common maintenance method for motors. By listening to the sound of the motor during operation to judge its operating state, usually through sound listening inspection, it can be judged whether the motor has mechanical failures, internal wear and other abnormalities. When conducting sound listening inspection, it is necessary to control the background noise to ensure that the environment is as quiet as possible so as to accurately hear the sound of the motor. When inspecting the sound, the inspector usually conducts a preliminary screening manually. When it is judged that the sound of the motor is abnormal, a professional device is used for inspection.

[0003] Since the sound of the motor during rotation is relatively small, the inspector often needs to get close to the motor to listen. At present, the height of the motor sound listening inspection device is usually fixed, resulting in that the inspector needs to bend down or use a cushion to get close to the motor during inspection. The inspector is prone to getting close to the motor subconsciously during the inspection, which may cause danger and cause overwork injury to the inspector's lumbar spine. Therefore, this application provides a device suitable for motor sound listening detection. Summary of the Utility Model

[0004] The utility model provides a sound listening device with adjustable height, and its purpose is to solve the problem that the height of the existing sound listening device is fixed and difficult to adjust.

[0005] In order to achieve the above purpose, the embodiment of the utility model provides a sound listening device with adjustable height, including:

[0006] A lifting mechanism;

[0007] A carrier platform, arranged on the lifting mechanism, and the lifting mechanism drives the carrier platform to lift;

[0008] A fixture, arranged on the carrier platform, and the fixture is used for fixing the motor nozzle.

[0009] Preferably, the sound listening device with adjustable height further includes an upright frame, and the lifting mechanism is arranged on the upright frame;

[0010] The upright frame includes a vertical plate;

[0011] The lifting mechanism includes a lead screw and a slider screwed to the lead screw. The lead screw is arranged in the vertical direction and is parallel to the vertical plate. The slider is slidably arranged on the vertical plate, and the carrier platform is fixed on the slider.

[0012] Preferably, the vertical plate further includes a horizontal plate disposed at the top of the vertical plate. The lead screw passes through the horizontal plate, and a locking mechanism is provided on the horizontal plate for restricting the rotation of the lead screw.

[0013] Preferably, the locking mechanism includes a base fixed on the horizontal plate. A first groove is formed on the lower surface of the base, and a first bearing is disposed in the first groove. A fixed portion and a movable portion are provided on the upper surface of the base. The fixed portion is fixed on the upper surface of the base and includes a first end and a second end. The movable portion includes a fixed end and a free end. The first end is connected to the fixed end, and the second end is spaced from the free end. A driving member is provided on the second end for driving the free end to approach or move away from the second end.

[0014] The upper end of the lead screw passes through the inner ring of the first bearing and between the fixed portion and the movable portion.

[0015] Preferably, the driving member is a double-headed screw, one end of which is screwed to the free end and the other end is screwed to the second end.

[0016] Preferably, second grooves for fixing a second bearing are further provided on the upper surfaces of the fixed portion and the movable portion, and the upper end of the lead screw further passes through the inner ring of the second bearing.

[0017] Preferably, a reinforcing plate fixedly connected to the vertical plate is further provided on the vertical plate, and the reinforcing plate and the slider are located on both sides of the vertical plate.

[0018] Preferably, the fixture is columnar, and an axial space for accommodating the output shaft of the motor is axially formed in the fixture. An uneven structure adapted to the shape of the motor nozzle is formed on the upper surface of the fixture.

[0019] Preferably, an access channel is further provided in the radial direction of the fixture, and the access channel communicates with the axial space.

[0020] The above solution of the present invention has the following beneficial effects:

[0021] In this application, the lifting mechanism drives the loading platform to lift, so that the motor located on the loading platform can be adaptively adjusted according to the height of the inspector, facilitating the inspector to maintain a standing posture during the sound inspection, avoiding the danger of the inspector approaching the motor subconsciously, and at the same time, the inspector maintains a standing posture without frequent bending, which protects the lumbar spine.

[0022] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of a motor;

[0024] Figure 2 It is an overall schematic diagram of the present utility model;

[0025] Figure 3 It is a schematic diagram of a jig;

[0026] Figure 4 It is a schematic diagram of a locking mechanism;

[0027] Figure 5 It is a sectional view of the locking mechanism.

[0028]

Explanation of the reference numerals of the drawings

[0029] 10 - Lifting mechanism, 11 - Lead screw, 12 - Slide block, 13 - Slide rail, 20 - Carrying platform, 30 - Jig, 31 - Axial space, 32 - Entrance channel, 40 - Upright frame, 41 - Vertical plate, 42 - Horizontal plate, 43 - Reinforcing plate, 50 - Locking mechanism, 51 - Base, 52 - First bearing, 53 - Fixed part, 54 - Movable part, 55 - Second end, 56 - Free end, 57 - Driving member, 58 - Second bearing.

[0030] A - Motor nozzle. Detailed implementation manners

[0031] To make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0032] As Figure 2-5 shown, an embodiment of the present utility model provides a height - adjustable sound - listening device for the sound - listening inspection of a motor as Figure 1 shown, including a lifting mechanism 10, a carrying platform 20 and a jig 30, wherein the carrying platform 20 is fixed on the lifting mechanism 10, and the carrying platform 20 is lifted under the drive of the lifting mechanism 10. A jig 30 for fixing the motor nozzle A is provided on the carrying platform 20.

[0033] When using this application, the inspector controls the lifting mechanism 10 to drive the carrying platform 20 to lift, so that the height of the carrying platform 20 can be adjusted according to the height of the inspector. This avoids the inspector bending down frequently or using a padding for sound - listening inspection.

[0034] Specifically, the height-adjustable sound listening device further includes a stand 40, and the lifting mechanism 10 is disposed on the stand 40, and the stand 40 plays a role in supporting the lifting mechanism 10. Specifically, the stand 40 includes a vertical plate 41, and the lifting mechanism 10 is fixedly disposed on the vertical plate 41. The aforementioned lifting mechanism 10 includes a lead screw 11 and a slider 12. The slider 12 is screwed to the lead screw 11. The lead screw 11 is arranged parallel to the vertical plate 41 in the vertical direction. The slider 12 is slidably connected to the vertical plate 41. Driven by the lead screw 11, the slider 12 can perform a linear reciprocating motion in the vertical direction, and the stage 20 fixedly connected to the slider 12 is lifted and lowered synchronously, thereby completing the adjustment of the height of the stage 20.

[0035] Further, the stand 40 further includes a cross plate 42. The cross plate 42 is disposed above the vertical plate 41. The upper end of the lead screw 11 passes through the cross plate 42. A locking mechanism 50 is disposed on the cross plate 42. When the locking mechanism 50 is locked, the lead screw 11 cannot rotate, thereby ensuring that the stage 20 does not move during the inspection.

[0036] Preferably, a pair of parallel slide rails 13 are disposed on the vertical plate 41, and the slider 12 is slidably connected to the vertical plate 41 through the slide rails 13.

[0037] In this application, a specific structure of the locking mechanism 50 is provided. The locking mechanism 50 includes a base 51 fixed on the cross plate 42. A first groove is formed on the lower surface of the base 51, and the first groove is recessed upward along the lower surface. A first bearing 52 is fixed in the first groove. A fixed portion 53 and a movable portion 54 are disposed on the upper surface of the base 51. The fixed portion 53 is fixed on the base 51, and the movable portion 54 is movably disposed on the base 51. A gap is formed between the fixed portion 53 and the movable portion 54 for the lead screw 11 to pass through. Specifically, the fixed portion 53 includes a first end and a second end 55, and the movable portion 54 includes a fixed end and a free end 56. The fixed portion 53 is fixedly disposed on the base 51, and the first end of the fixed portion 53 is fixedly connected to the fixed end. The movable portion 54 is suspended on the base 51 and is supported by the fixed portion 53. The second end 55 of the fixed portion 53 is spaced from the free end 56. A driving member 57 is disposed on the second end 55, and the driving member 57 drives the free end 56 to approach or separate from the second end 55.

[0038] The upper end of the aforementioned lead screw 11 passes through the inner ring of the first bearing 52 and has an interference fit with the inner ring of the first bearing 52. The upper end of the lead screw 11 also passes through the gap formed by the fixed part 53 and the movable part 54. When the lead screw 11 needs to rotate, the driving member 57 drives the free end 56 and the second end 55 to move away from each other. At this time, the lead screw 11 can rotate between the fixed part 53 and the movable part 54, thereby driving the carrier table 20 to move up and down. When it is necessary to limit the rotation of the lead screw 11, the driving member 57 drives the free end 56 and the second end 55 to approach each other, which plays a role in clamping the lead screw 11.

[0039] Preferably, in this embodiment, a handwheel is provided at the upper end of the lead screw 11.

[0040] Preferably, a second groove is further provided on the upper surfaces of the fixed part 53 and the movable part 54. A second bearing 58 is provided in the second groove. The outer ring of the second bearing 58 is fixed to the bottom of the second groove. The upper end of the lead screw 11 also passes through the inner ring of the second bearing 58 and has an interference fit with the inner ring of the second bearing 58. The outer diameter of the outer ring of the second bearing 58 is smaller than the diameter of the second groove, ensuring that when the driving member 57 drives the free end 56 and the second end 55 to approach each other, the second bearing 58 will not hinder the approach of the free end 56 and the second end 55, and ensuring the clamping effect.

[0041] Further, in this embodiment, the driving member 57 is a double-headed screw, that is, both ends of the double-headed screw have threads in different directions. One end of the double-headed screw passes through the second end 55 and is screwed to the free end 56, and the other end is screwed to the second end 55. When the double-headed screw rotates, it can drive the free end 56 or the second end 55 to approach or move away from each other, thereby achieving the purpose of adjusting the gap size between the second end 55 and the free end 56.

[0042] Preferably, a knob is provided at one end of the double-headed screw, and the double-headed screw is rotated by rotating the knob.

[0043] Preferably, a reinforcing plate 43 is further provided on the vertical plate 41. The reinforcing plate 43 is fixed to the vertical plate 41, and the reinforcing plate 43 and the slider 12 are respectively located on both sides of the vertical plate 41 to maintain the stability of the lifting mechanism 10 and prevent the lifting mechanism 10 from tilting.

[0044] Further, the aforementioned jig 30 is presented in a columnar shape. An axial space 31 penetrating the jig 30 is provided in the axial direction of the jig 30. An uneven structure is provided on the upper surface of the jig 30, and the uneven structure is adapted to the shape of the motor nozzle A. During inspection, the output shaft of the motor is inserted downward into the axial space 31, and the motor nozzle A is engaged with the uneven structure to prevent the motor nozzle A from rotating circumferentially.

[0045] Preferably, an access channel 32 is further provided in the radial direction of the jig 30. The access channel 32 communicates with the axial space 31.

[0046] The above are the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A height-adjustable sound listening device, characterized in that, Comprising: A lifting mechanism (10); A load platform (20) provided on the lifting mechanism (10), and the lifting mechanism (10) drives the load platform (20) to move up and down; A jig (30) fixed on the load platform (20), and the jig (30) is used to fix the motor nozzle (A).

2. The height-adjustable sound listening device according to claim 1, wherein: The height-adjustable sound listening device further includes a stand (40), and the lifting mechanism (10) is provided on the stand (40); The stand (40) includes a vertical plate (41); The lifting mechanism (10) includes a lead screw (11) and a slider (12) screwed to the lead screw (11). The lead screw (11) is arranged in the vertical direction and is parallel to the vertical plate (41). The slider (12) is slidably arranged on the vertical plate (41), and the load platform (20) is fixed on the slider (12).

3. The height-adjustable sound listening device according to claim 2, characterized in that: The vertical plate (41) further includes a horizontal plate (42). The horizontal plate (42) is arranged at the top of the vertical plate (41). The lead screw (11) passes through the horizontal plate (42), and a locking mechanism (50) is arranged on the horizontal plate (42). The locking mechanism (50) is used to restrict the rotation of the lead screw (11).

4. The height-adjustable sound listening device according to claim 3, characterized in that: The locking mechanism (50) includes a base (51) fixed on the horizontal plate (42). A first groove is formed on the lower surface of the base (51), and a first bearing (52) is arranged in the first groove. A fixed part (53) and a movable part (54) are arranged on the upper surface of the base (51). The fixed part (53) is fixed on the upper surface of the base (51). The fixed part (53) includes a first end and a second end (55). The movable part (54) includes a fixed end and a free end (56). The first end is connected to the fixed end, and the second end (55) is spaced from the free end (56). A driving member (57) is arranged on the second end (55), and the driving member (57) drives the free end (56) to approach or move away from the second end (55); The upper end of the lead screw (11) passes through the inner ring of the first bearing (52) and between the fixed part (53) and the movable part (54).

5. The height-adjustable sound listening device according to claim 4, wherein: The driving member (57) is a double-headed screw. One end of the double-headed screw is screwed to the free end (56), and the other end is screwed to the second end (55).

6. The height-adjustable sound listening device according to claim 5, wherein: Second grooves for fixing a second bearing (58) are further arranged on the upper surfaces of the fixed part (53) and the movable part (54), and the upper end of the lead screw (11) also passes through the inner ring of the second bearing (58).

7. The height-adjustable sound listening device according to claim 2, wherein: A reinforcing plate (43) fixedly connected to the vertical plate (41) is further arranged on the vertical plate (41), and the reinforcing plate (43) and the slider (12) are located on both sides of the vertical plate (41).

8. The height-adjustable sound listening device according to claim 1, wherein: The jig (30) is columnar. An axial space (31) for accommodating the motor output shaft is axially formed in the jig (30). An uneven structure adapted to the shape of the motor nozzle (A) is formed on the upper surface of the jig (30).

9. The height-adjustable sound listening device according to claim 8, characterized in that: An access channel (32) is also provided radially in the jig (30), and the access channel (32) communicates with the axial space (31).

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