Noise-proof device for electric trolley

Abstract

The utility model discloses a noiseproof device for an electric trolley, which relates to the technical field of cranes and comprises a base, a bearing frame fixedly connected to the top end of the base, a main bracket and an auxiliary bracket symmetrically arranged above the bearing frame, and wheels rotatably connected to the main bracket and the auxiliary bracket. The rubber pads are fixedly connected to the outer surfaces of the wheels; the protective cover is fixedly connected to the outer surface of the main bracket; the sound insulation cotton is filled in the protective cover; the distance adjusting assembly is arranged between the main bracket and the auxiliary bracket, and the distance adjusting assembly is used for controlling the main bracket and the auxiliary bracket to move close to each other and far away from each other, the device can provide buffering and noise reduction for the wheels through the rubber pads, meanwhile, the use abrasion of the wheels is reduced, and the protective cover and the sound insulation cotton are not prone to falling off. And noise generated by wheel movement can be absorbed, so that the noise reduction function of the device is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hoist, concretely relates to a kind of electric trolley noise-proof device. BACKGROUND

[0002] Electric hoist is a kind of special lifting equipment, installed on headstock gear, gantry crane, electric hoist has small volume, light weight, simple operation, easy to use etc., for industrial and mining enterprises, warehouse, wharf etc., electric hoist is generally installed on single-beam crane, bridge crane, gantry crane, suspension crane, slightly modified, can also be made as winch;

[0003] Through search, patent authorized disclosure number CN208394683U discloses a kind of electric hoist car wheel axle connecting structure, including connecting rod, side plate and car wheel, the number of side plate is two, the bottom end of two side plates is connected by connecting rod, by setting tapered hole in side plate, and setting tapered shaft connected with car wheel in tapered hole, the device can effectively avoid the rigid connection of each structural member, improve the service life of product, but the device wheel directly contacts track movement, device moves and generates noise, noise pollution is serious;

[0004] Therefore, the utility model provides a kind of electric trolley noise-proof device to make up and improve the deficiency of prior art. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model adopts the technical scheme as follows: a kind of electric trolley noise-proof device, including base, the top of base is fixedly connected with bearing frame, the upper portion of bearing frame is symmetrically provided with main bracket and vice bracket, and the wheel is rotatably connected on the main bracket and the vice bracket, characterized by comprising:

[0006] Rubber pad, rubber pad is fixedly connected to the outer surface of wheel;

[0007] Protective cover, protective cover is fixedly connected to the outer surface of main bracket;

[0008] Soundproof cotton, soundproof cotton is filled in the inside of protective cover;

[0009] Distance adjusting assembly, distance adjusting assembly is arranged between main bracket and vice bracket, and distance adjusting assembly is used to control the mutual approaching and mutual moving away of main bracket and vice bracket.

[0010] As preferred, distance adjusting assembly includes spline sleeve rotatably connected to base, spline sleeve is internally spline-connected with spline shaft, and spline sleeve is fixedly connected with gear on outer surface.

[0011] As preferred, the top of spline shaft is fixedly connected with threaded rod, and threaded rod is threadedly connected with bearing frame.

[0012] As preferred, the distance adjusting assembly further comprises a first clamping seat clamped to the bottom end of the secondary bracket, and the outer surface of the first clamping seat is fixedly connected with a first rack, and the first rack is engaged with the gear.

[0013] As preferred, the distance adjusting assembly further comprises a second clamping seat clamped to the bottom end of the primary bracket, and the outer surface of the second clamping seat is fixedly connected with a second rack, and the second rack is engaged with the gear.

[0014] As preferred, the proximal end surfaces of the primary bracket and the secondary bracket are fixedly connected with protective covers, and the protective covers are wrapped outside the wheels.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The rubber pad, the protective cover and the soundproof cotton are cooperatively used, the rubber pad provides buffering and noise reduction for the wheels, the use abrasion of the wheels is reduced, the protective cover and the soundproof cotton absorb the noise generated by the movement of the wheels, and the noise reduction function of the device is increased.

[0017] The distance adjusting assembly is arranged, the rotating direction of the threaded rod is controlled, the gear is rotated in linkage, the first rack and the second rack are moved to approach each other or move away from each other, and the distance between the primary bracket and the secondary bracket is controlled, the distance between the wheels can be freely adjusted according to different track widths, and the distance adjustment convenience between the adjacent wheels is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of a preferred embodiment of the utility model;

[0019] Figure 2 It is a whole structure sectional view schematic view of the utility model;

[0020] Figure 3 It is a whole structure sectional view schematic view of the utility model; Figure 2 It is a structure schematic view of the enlarged A in the figure;

[0021] Figure 4 It is a gear and first rack connection structure schematic view of the utility model.

[0022] Reference numerals in the figure are:

[0023] 1, base; 2, bearing frame; 3, distance adjusting assembly; 4, primary bracket; 5, secondary bracket; 6, wheel; 7, rubber pad; 8, protective cover; 9, soundproof cotton; 31, threaded rod; 32, spline shaft; 33, gear; 34, spline sleeve; 35, first rack; 36, first clamping seat; 37, second rack; 38, second clamping seat. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Embodiments of the utility model

[0026] Please refer to Figures 1-4 The utility model discloses an electric trolley noise-proof device, including base 1, the top of base 1 is fixedly connected with the bearing frame 2, the upper portion of bearing frame 2 is symmetrically provided with main bracket 4 with vice bracket 5, and the wheel 6 is rotatably connected on main bracket 4 and vice bracket 5, characterized by comprising:

[0027] Rubber pad 7 is fixedly connected to the outer surface of wheel 6;

[0028] Protective cover 8 is fixedly connected to the outer surface of main bracket 4;

[0029] Soundproof cotton 9 is filled in the inside of protective cover 8;

[0030] Distance adjusting assembly 3 is arranged between main bracket 4 and vice bracket 5, and distance adjusting assembly 3 is used for controlling the mutual approaching and mutually moving away of main bracket 4 and vice bracket 5;

[0031] Distance adjusting assembly 3 includes spline sleeve 34 rotatably connected on base 1, spline shaft 32 is spline-connected in the inside of spline sleeve 34, and gear 33 is fixedly connected to the outer surface of spline sleeve 34;

[0032] The top of spline shaft 32 is fixedly connected with threaded rod 31, and threaded rod 31 is screw-connected with bearing frame 2;

[0033] Distance adjusting assembly 3 further includes first clamping seat 36 clamped to the bottom end of vice bracket 5, first rack 35 is fixedly connected to the outer surface of first clamping seat 36, and first rack 35 is engaged with gear 33;

[0034] Distance adjusting assembly 3 further includes second clamping seat 38 clamped to the bottom end of main bracket 4, second rack 37 is fixedly connected to the outer surface of second clamping seat 38, and second rack 37 is engaged with gear 33;

[0035] The proximal end surface of main bracket 4 and vice bracket 5 is fixedly connected with protective cover 8, and protective cover 8 is wrapped outside wheel 6;

[0036] Supplementary description: the main bracket 4 and the secondary bracket 5 are provided with avoiding holes, and the avoiding holes are used for providing moving space for the first rack 35 and the second rack 37;

[0037] The top surface of the base 1 is provided with a T-shaped groove, the first rack 35 and the second rack 37 are fixedly provided with T-shaped sliding blocks at the bottom ends, and the T-shaped sliding blocks slide on the T-shaped groove;

[0038] The first rack 35 and the second rack 37 are provided with distance scale lines;

[0039] The first clamping seat 36 and the first rack 35 are provided with positioning holes, and bolts are arranged in the positioning holes; the second clamping seat 38 and the second rack 37 are provided with fixing holes, and bolts are arranged in the fixing holes;

[0040] By cooperation of the rubber pad 7, the protective cover 8 and the soundproof cotton 9, the rubber pad 7 can provide buffering and noise reduction for the wheels 6, the use wear of the wheels 6 is reduced, the protective cover 8 and the soundproof cotton 9 can absorb the noise generated by the movement of the wheels 6, and the noise reduction function of the device is increased.

[0041] By adjusting the rotating direction of the threaded rod 31, the gear 33 is rotated, the first rack 35 and the second rack 37 are controlled to move away from each other, the distance between the main bracket 4 and the secondary bracket 5 is controlled, the distance between the wheels 6 can be freely adjusted according to different track widths, and the distance adjustment convenience between the adjacent wheels 6 is increased.

[0042] Working principle and use process of the utility model:

[0043] When the track width required by the wheels 6 is wide, the threaded rod 31 is rotated clockwise, the spline shaft 32 is rotated, the first rack 35 and the second rack 37 are controlled to move away from each other, the wheels 6 carried by the main bracket 4 and the wheels 6 carried by the secondary bracket 5 are horizontally moved away from each other, until the distance between the wheels 6 is adapted to the wide track; when the track width required by the wheels 6 is narrow, the threaded rod 31 is rotated counterclockwise, the wheels 6 carried by the main bracket 4 and the wheels 6 carried by the secondary bracket 5 are horizontally moved towards each other, until the distance between the wheels 6 is adapted to the narrow track.

[0044] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0045] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle noise-proof device, comprising a base (1), the top end of the base (1) is fixedly connected with a bearing frame (2), the upper part of the bearing frame (2) is symmetrically provided with a main bracket (4) and a vice bracket (5), the main bracket (4) and the vice bracket (5) are both rotatably connected with wheels (6), characterized in that, Include: Rubber pad (7), the rubber pad (7) is fixedly connected to the outer surface of the wheel (6); Protective cover (8), the protective cover (8) is fixedly connected to the outer surface of the main bracket (4); Sound insulation cotton (9), the sound insulation cotton (9) is filled in the inside of the protective cover (8); Distance adjusting assembly (3), the distance adjusting assembly (3) is arranged between the main bracket (4) and the vice bracket (5), and the distance adjusting assembly (3) is used for controlling the mutual approaching and moving away of the main bracket (4) and the vice bracket (5).

2. The electrically powered trolley noise protection device of claim 1, wherein The distance adjusting assembly (3) includes the spline sleeve (34) rotatably connected to the base (1), the spline sleeve (34) is internally spline connected with the spline shaft (32), and the outer surface of the spline sleeve (34) is fixedly connected with the gear (33).

3. The electrically powered trolley noise protection device of claim 2, wherein, The top end of the spline shaft (32) is fixedly connected with the threaded rod (31), and the threaded rod (31) is threadedly connected with the bearing frame (2).

4. The electrically powered trolley noise protection device of claim 2, wherein, The distance adjusting assembly (3) further includes the first clamping seat (36) clamped to the bottom end of the vice bracket (5), the outer surface of the first clamping seat (36) is fixedly connected with the first rack (35), and the first rack (35) is engaged with the gear (33).

5. The electrically powered trolley noise protection device of claim 2, wherein, The distance adjusting assembly (3) further includes the second clamping seat (38) clamped to the bottom end of the main bracket (4), the outer surface of the second clamping seat (38) is fixedly connected with the second rack (37), and the second rack (37) is engaged with the gear (33).

6. The electrically powered trolley noise protection device of claim 1, wherein, The proximal end surface of the main bracket (4) and the vice bracket (5) is fixedly connected with the protective cover (8), and the protective cover (8) is wrapped outside the wheel (6).

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