CN218702582U

CN218702582U - Damping mechanism for AGV steering wheel

Info

Publication number: CN218702582U
Application number: CN202221775200.0U
Authority: CN
Inventors: 张乐博; 孙洪久; 王永强; 张乐科
Original assignee: Suzhou Phoenix Power Industry Co ltd
Current assignee: Suzhou Phoenix Power Industry Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2023-03-24
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a damping mechanism for an AGV steering wheel, which comprises a guide external member, wherein the top of the guide external member is open, a sliding inner cavity is arranged in the guide external member, and the upper end of the guide external member extends outwards to form a fixed part; the floating shaft part is telescopically installed in the sliding inner cavity of the guide sleeve part through the spring body, the head end of the floating shaft part extends out of the guide sleeve part, the tail end of the floating shaft part penetrates through the bottom end of the guide sleeve part, and the tail end of the floating shaft part is provided with the anti-falling part, so that the floating shaft part and the guide sleeve part are connected without separation. The utility model provides a pair of damping mechanism for AGV steering wheel, simple structure, the cost of manufacture is low, easy to maintain, and occupation space is little, absorbs and cushions the impact that steering wheel upper fixed plate received through the cooperation of unsteady axial region and direction external member to the steering wheel subassembly to unsteady board below is protected, thereby has prolonged the life of steering wheel subassembly.

Description

Damping mechanism for AGV steering wheel

Technical Field

The utility model belongs to the technical field of the damper technique and specifically relates to a damper for AGV steering wheel is related to.

Background

With the vigorous development of the domestic automobile industry, in order to meet the requirements of different consumers, the types of automobile models are more and more, and the automobile production line is required to have high flexibility. The AGV has the characteristics of high flexibility and intellectualization, so that the AGV is more and more widely applied to an automobile production line.

In daily production, because the steering wheel of AGV receives AGV body and the produced inertia impact of load that bears or pull when accelerating and decelerating and opening and stop to and receive the influence of fluctuation, slope, slot, step of workshop ground environment, the steering wheel of AGV usually is through increasing damper with the above condition of adaptation and extension steering wheel's life. Most of damping mechanisms on the market at present are complex in structure, large in size and difficult to adjust, and because the steering wheel for the AGV belongs to a product with high integration degree, the size of the product can be inevitably increased by adding the damping mechanism on the product, so that the use, installation and debugging of a user are influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a damping mechanism for AGV steering wheel has that occupation space is little, and installation adjustment is convenient, the effectual advantage of shock attenuation.

To achieve the above object, the present invention adopts the following:

a damper for an AGV steering wheel comprising:

the top of the guide sleeve is open, a sliding inner cavity is formed in the guide sleeve, and the upper end of the guide sleeve extends outwards to form a fixing part;

the floating shaft part is telescopically installed in the sliding inner cavity of the guide sleeve part through the spring body, the head end of the floating shaft part extends out of the guide sleeve part, the tail end of the floating shaft part penetrates through the bottom end of the guide sleeve part, and the tail end of the floating shaft part is provided with the anti-falling part, so that the floating shaft part and the guide sleeve part are connected without separation.

Have fixed plate and unsteady board on the steering wheel for the AGV, the fixed plate is connected to the transport vechicle, the steering wheel subassembly is connected to the unsteady board, based on the steering wheel for the present AGV, the fixed part with direction external member upper end is connected on the unsteady board of steering wheel, the upper end of unsteady axial region is connected on the fixed plate of steering wheel, that is to say, this damper installs between the fixed plate of steering wheel and unsteady board, can arrange multiunit damper unit simultaneously, in order to realize the shock attenuation of heavy load, and this damper's occupation space is little, can distribute around the steering wheel subassembly.

Preferably, the upper portion of the floating shaft portion is a sliding portion, the lower portion of the floating shaft portion is a shaft portion, the diameter of the sliding portion is larger than that of the shaft portion, the tail end of the shaft portion penetrates through the bottom end of the guide sleeve piece, and the sliding portion slides up and down in the sliding inner cavity. The sliding part is connected to the fixed plate, and the sliding part which slides up and down in the sliding cavity of the guide sleeve can buffer the force in the vertical direction.

Preferably, the spring body is a plurality of pairs of belleville springs, and the plurality of pairs of belleville springs are all sleeved on the outer side of the shaft rod part and are all located in the sliding inner cavity. Here, the selection of the spring body can be ordinary pressure spring, mould spring, belleville spring etc. this scheme selects for use multiunit belleville spring to provide sufficient elastic stretch for the floating shaft portion, has high bearing capacity.

Preferably, the anti-release member is an interlocking nut, the lower part of the shaft part has a thread design, and the interlocking nut is in threaded connection with the shaft part. This scheme ensures through the interlocking nut that anticreep spare can not take place relative displacement with the axostylus axostyle portion, so, the elastic strength of the position of interlocking nut in order to adjust the spring body on the accessible adjustment axostylus axostyle portion to the weight of adaptation load.

Preferably, a protruding positioning part is arranged in the middle of the top of the sliding part. The connection stability between the floating shaft part and the fixed plate on the steering wheel is ensured.

Preferably, an upper sliding bearing and a lower sliding bearing are respectively installed on the inner wall of the upper end and the inner wall of the lower end of the guide sleeve to be respectively matched with the sliding part and the shaft rod part. Therefore, in the process that the sliding part and the shaft rod part respectively slide up and down, the upper sliding bearing and the lower sliding bearing not only have the noise reduction effect, but also can greatly reduce the friction loss and the surface wear of the sliding part and the shaft rod part.

Preferably, the inner wall of the upper end of the guide sleeve is provided with an inward-concave upper step layer, the upper sliding bearing is arranged in the upper step layer, an upper cover plate is fixedly arranged at the upper end of the guide sleeve to seal the upper sliding bearing in the guide sleeve, and an upper through hole for the sliding part to pass through is formed in the upper cover plate.

Preferably, an inner wall of the lower end of the guide sleeve is provided with a concave lower step layer, the lower sliding bearing is arranged in the lower step layer, a lower gasket is fixedly arranged at the lower end of the guide sleeve to seal the lower sliding bearing in the guide sleeve, and a lower through hole for the shaft rod to pass through is formed in the lower gasket.

A damping mechanism for AGV steering wheel, simple structure, the cost of manufacture is low, easy to maintain, occupation space is little, the impact that receives steering wheel upper fixed plate through the cooperation of unsteady axial region and direction external member absorbs and cushions to the steering wheel subassembly to unsteady board below is protected, thereby has prolonged the life of steering wheel subassembly.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic cross-sectional view illustrating a damping mechanism for a steering wheel of an AGV according to the present invention;

FIG. 2 is a schematic view illustrating the disassembly of the damping mechanism for the steering wheel of the AGV according to the present invention;

FIG. 3 is a diagram showing the installation effect of the damping mechanism for the AGV rudder wheel according to the present invention;

in the figures, the various reference numbers are:

1-fixed plate, 2-floating plate, 10-guide sleeve piece, 20-floating shaft part, 30-spring body, 40-anti-drop piece, 50-upper sliding bearing, 60-lower sliding bearing, 70-upper cover plate, 80-lower gasket, 110-sliding inner cavity, 120-fixed part, 130-upper step, 140-lower step, 210-sliding part, 220-shaft part, 211-positioning part, 710-upper through hole and 810-lower through hole.

Detailed Description

In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

Referring to fig. 1 and 2, an embodiment of the present invention provides a damping mechanism for an AGV steering wheel, which is mainly composed of a guide sleeve 10 and a floating shaft 20.

The top of the guide sleeve 10 is open, and has a sliding cavity 110 therein, and the upper end of the guide sleeve 10 extends outward to form a fixing portion 120.

The floating shaft 20 is telescopically mounted in the sliding cavity 110 of the guide sleeve 10 through the spring body 30, the head end of the floating shaft 20 extends out of the guide sleeve 10, the end of the floating shaft 20 penetrates the bottom end of the guide sleeve 10, and the anti-separation member 40 is disposed at the end of the floating shaft 20, so that the floating shaft 20 and the guide sleeve 10 are connected without separation.

Referring to fig. 3, the steering wheel that AGV used has upper and lower spaced fixed plate 1 and floating plate 2, and fixed plate 1 is used for connecting the AGV transport vechicle, and floating plate 2 below is used for connecting the steering wheel subassembly, the utility model discloses a damper installs between fixed plate 1 and floating plate 2, and can arrange multiunit damper unit simultaneously between fixed plate 1 and the floating plate 2 to realize the shock attenuation of heavy load, specifically, connect the fixed part 120 of direction external member 10 upper end on the floating plate 2 of steering wheel, the upper end of floating shaft portion 20 is connected on the fixed plate 1 of steering wheel, through the flexible effect of the interior spring body of direction external member, absorb and cushion the impact that the fixed plate received on the steering wheel, in order to protect the steering wheel subassembly of floating plate below, thereby prolonged the life of steering wheel subassembly.

Regarding the specific configuration of the floating shaft portion: the floating shaft part 20 is integrally cylindrical, the surface of the floating shaft part is specially treated, so that the floating shaft part has good wear resistance, and the floating shaft part 20 is integrally formed to ensure the structural strength, the upper part of the floating shaft part 20 is the sliding part 210, the lower part of the floating shaft part is the shaft part 220, the diameter of the sliding part 210 is greater than that of the shaft part 220, specifically, the tail end of the shaft part 220 penetrates through the bottom end of the guide sleeve part 10 and is connected with the anti-falling part 40, the sliding part 210 slides up and down in the sliding inner cavity 110, and the head end of the sliding part extends out of the guide sleeve part 10. The spring body is arranged in the sliding cavity in the guide sleeve part, the shaft rod part penetrates through the spring body and then penetrates through the bottom end of the guide sleeve part, namely, the spring body is compressed between the sliding part and the bottom end of the sliding cavity, so that the sliding part which slides up and down in the sliding cavity can buffer the force from the vertical direction of the fixing plate through the spring body.

In this scheme, the selection of the spring body 30 in the sliding inner cavity 110 may be a common pressure spring, a mold spring, a belleville spring, etc., but in the damping mechanism of this embodiment, the spring body is a belleville spring, a plurality of pairs of belleville springs are all sleeved outside the shaft portion and are all located in the sliding inner cavity, and sufficient elastic extension is provided for the floating shaft portion through a plurality of groups of belleville springs, so that the spring body has high bearing capacity.

The purpose of this scheme design anticreep piece is in order to prevent that the floating axle part from breaking away from the direction external member by accident, though in the course of the work, the anticreep body can not exert too obvious effect, because there is certain mutual squeezing action between fixed plate and the floating plate all the time, this makes the floating axle part compressed in sliding inner chamber all the time, the situation that the uncovered unexpected play in top that the floating axle part can follow the direction external member does not exist, but under the portable state before the installation, if there is not the design of anticreep piece, it is connected to be difficult to keep not separating all the time between floating axle part and the direction external member, this can influence damper's result of use.

In this embodiment, the anti-slip element 40 is an interlocking nut, and the lower portion of the shaft portion 220 has a corresponding thread design, and the interlocking nut is threadedly connected with the shaft portion. This scheme ensures through the interlocking nut that anticreep spare can not take place relative displacement with the axostylus axostyle portion, and in addition, the position of interlocking nut on the accessible adjustment axostylus axostyle portion is in order to adjust the elastic strength of the interior spring body of sliding cavity to the weight of adaptation load.

Further, the middle position of the top of the sliding part 210 is provided with a protruding positioning part 211, and of course, the fixing plate 1 is correspondingly provided with a jack (not shown), during the installation process, the positioning part is inserted into the jack, and then the sliding part is fixedly connected with the fixing plate, so as to ensure the connection stability between the floating shaft part and the fixing plate on the steering wheel.

In this embodiment, the upper and lower inner walls of the guide sleeve 10 are respectively mounted with the upper and

lower slide bearings

50 and 60 to respectively fit the sliding part 210 and the shaft part 220. Therefore, in the process that the sliding part and the shaft rod part respectively slide up and down, the upper sliding bearing and the lower sliding bearing not only have the noise reduction effect, but also can greatly reduce the friction loss and the surface wear of the sliding part and the shaft rod part. In addition, the upper sliding bearing is tightly matched with the sliding part, and the lower sliding bearing is tightly matched with the shaft part, so that the stability of the floating shaft part in the up-and-down floating process is ensured, and the problem of radial shaking is avoided.

Specifically, the inner wall of the upper end of the guide assembly 10 is provided with an inwardly concave upper step layer 130, the upper sliding bearing 50 is disposed in the upper step layer 130, an upper cover plate 70 is fixedly disposed at the upper end of the guide assembly 10, so that the upper sliding bearing 50 is sealed in the guide assembly 10, and an upper through hole 710 for the sliding portion 210 to pass through is formed in the upper cover plate 70.

Specifically, the inner wall of the lower end of the guide sleeve 10 is provided with a concave lower step 140, the lower sliding bearing 60 is disposed in the lower step 140, a lower gasket 80 is fixedly disposed at the lower end of the guide sleeve 10, so as to seal the lower sliding bearing 60 in the guide sleeve 10, and a lower through hole 810 for the shaft portion 220 to pass through is formed in the lower gasket 80.

The damping mechanism scheme that this application improved, simple structure, the cost of manufacture is low, easy to maintain, and occupation space is little, absorbs and cushions the impact force that rudder wheel upper fixed plate received through the cooperation of unsteady axial region and direction external member to the rudder wheel subassembly to unsteady board below is protected, thereby has prolonged the life of rudder wheel subassembly.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. The utility model provides a damping mechanism for AGV steering wheel which characterized in that includes:

2. The damping mechanism for the AGV rudder wheel according to claim 1, wherein the upper portion of the floating shaft portion is a sliding portion, the lower portion of the floating shaft portion is a shaft portion, the diameter of the sliding portion is larger than that of the shaft portion, the end of the shaft portion penetrates through the bottom end of the guide sleeve, and the sliding portion slides up and down in the sliding inner cavity.

3. The damping mechanism for the AGV rudder wheel of claim 2, wherein the spring body is a plurality of pairs of belleville springs, and the plurality of pairs of belleville springs are all sleeved outside the shaft portion and are all located in the sliding inner cavity.

4. A shock-absorbing mechanism for AGV steering wheel according to claim 2, characterized in that the anti-release member is an interlocking nut, the lower part of the shaft part has a threaded design, and the interlocking nut is in threaded connection with the shaft part.

5. The AGV steering wheel damping mechanism of claim 2, wherein a protruding positioning portion is provided at a top middle position of the sliding portion.

6. The damping mechanism for the AGV rudder wheel according to claim 2, wherein an upper sliding bearing and a lower sliding bearing are respectively installed on an upper end inner wall and a lower end inner wall of the guide sleeve to respectively match the sliding portion and the shaft portion.

7. The damping mechanism for the AGV rudder wheel according to claim 6, wherein the inner wall of the upper end of the guiding sleeve is provided with an inwardly concave upper step layer, the upper sliding bearing is disposed in the upper step layer, an upper cover plate is fixedly disposed at the upper end of the guiding sleeve to seal the upper sliding bearing in the guiding sleeve, and an upper through hole for the sliding portion to pass through is formed in the upper cover plate.

8. The AGV steering wheel damping mechanism of claim 6, wherein the inner wall of the lower end of the guiding sleeve is provided with a concave lower step, the lower sliding bearing is arranged in the lower step, a lower gasket is fixedly arranged at the lower end of the guiding sleeve to seal the lower sliding bearing in the guiding sleeve, and a lower through hole for the shaft to pass through is formed in the lower gasket.