Guide device for telescopic oil cylinder of overhead working truck

Abstract

The utility model relates to the field of overhead working equipment, in particular to an overhead working truck telescopic oil cylinder guiding device which comprises a support and a pulley rotatably arranged on the support, and at least two sliding blocks are arranged on the side of the pulley of the support at intervals in the axial direction of the pulley. According to the utility model, the slide block is optimally arranged, so that the problems in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of aerial work equipment, in particular to a telescopic oil cylinder guide device for an aerial work vehicle. Background Art

[0002] When the aerial work vehicle uses a telescopic arm as the lifting power, the telescopic cylinder inside the vehicle boom drives the boom to move telescopically, and the telescopic cylinder is often equipped with a guide wheel mechanism. For example, a telescopic cylinder support device for a truck crane boom disclosed in application No. 201920728081.5, as shown in its attached figure, guides the guide wheel to move inside the boom through the support wheel. With this type of support wheel guidance method, the telescopic wheel shaft is easily deformed and loosened under the action of a large load, affecting the stability of the guide use.

[0003] Therefore, it is necessary to improve the guiding device of the telescopic oil cylinder to solve the problems existing in the prior art. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a telescopic oil cylinder guide device for an aerial work vehicle, which effectively solves the problems existing in the prior art by optimizing the setting of a sliding block.

[0005] In order to solve the above problems, the utility model provides a telescopic cylinder guide device for an aerial work vehicle, comprising a bracket and a pulley rotatably arranged on the bracket, wherein the bracket is provided with at least two sliding blocks at intervals along the axial direction of the pulley on the side of the pulley.

[0006] Furthermore, the normal lines of the bottom surfaces of the sliding blocks on both sides are inclined outwards.

[0007] Furthermore, the bracket is provided with three sliding blocks at intervals along the axial direction of the pulley at the lower side of the pulley; wherein the normal line of the bottom surface of the sliding block located in the middle is arranged downward.

[0008] Furthermore, the bracket is provided with a mounting plate on the lower side of the pulley, and the slider is mounted on the mounting plate by threaded fasteners.

[0009] Furthermore, the mounting plate is welded to the bracket.

[0010] Furthermore, the plate surface of the mounting plate is parallel to the extension direction of the bottom surface of the sliding block at the corresponding position.

[0011] Furthermore, the mounting plates are integrally formed, and adjacent mounting plates are bent to form mounting surfaces for mounting the sliders.

[0012] Furthermore, the bottom surface of the slider located in the middle is inclined upward at both ends.

[0013] Furthermore, a side slider is provided on the side of the bracket.

[0014] Furthermore, the side slider is connected to the bracket via a threaded fastener.

[0015] The beneficial effect of the utility model is that the problems existing in the prior art are effectively solved by optimizing the setting of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model.

[0018] Figure 2 for Figure 1 A schematic side sectional view of the structure of the illustrated embodiment.

[0019] Figure 3 for Figure 1 A schematic structural diagram of a mounting plate in the illustrated embodiment.

[0020] Figure 4 for Figure 1 A schematic cross-sectional view of the pulley axis position in the illustrated embodiment.

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the guide device in the arm frame in the illustrated embodiment.

[0022] Among them: 1. bracket; 2. pulley; 3. slider; 4. mounting plate; 5. side slider. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0024] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0028] In the present utility model, if Figure 1-5 As shown, a telescopic cylinder guide device for an aerial work vehicle is provided, comprising a bracket 1 and a pulley 2 rotatably arranged on the bracket 1 , wherein the bracket 1 is provided with at least two sliding blocks 3 spaced apart along the axial direction of the pulley 2 on the side of the pulley 2 .

[0029] As shown in the figure, the utility model supports and guides the pulley through the slider 3, and the slider 3 is fixedly connected to the bracket 1. Compared with the setting method of the supporting wheel in the prior art, the slider 3 is not easy to deform and loosen, and can stably support and guide. Moreover, through the sliders 3 arranged at intervals, gaps can be formed between adjacent sliders 3 to promote the flow of lubricating grease between adjacent sliders 3, thereby improving the lubrication effect of the sliders 3.

[0030] It should be noted that the "side" mentioned in the utility model of "at least two sliders 3 are provided on the side of the pulley 2 along the axial direction of the pulley 2" refers to the upper side of the pulley 2 as shown in the figure. In the figure, the slider 3 is only provided on the lower side of the pulley 2. This does not serve as a limitation to the utility model. In an optional embodiment, sliders 3 may also be provided on the upper and lower sides of the pulley 2.

[0031] In the illustrated embodiment, the structure of the utility model is further optimized in that the normal lines of the bottom surfaces of the sliders 3 on both sides are tilted outwards. As shown in the figure, the guide device of the utility model can be applied to the working condition where the cross section of the arm frame is a polygon, and the sliders 3 tilted on both sides can also assist in the side constraint guidance of the guide device.

[0032] In the illustrated embodiment, more specifically, as shown in the figure, the bracket 1 is provided with three sliders 3 at intervals along the axial direction of the pulley 2 at the lower side of the pulley 2; wherein the normal line of the bottom surface of the slider 3 located in the middle is arranged downward. As shown in the figure, the bottom surface of the arm can be directly supported by the slider 3 in the middle.

[0033] In the illustrated embodiment, for the installation of the slider 3 in the present invention, more specifically, the bracket 1 is provided with a mounting plate 4 at the lower side of the pulley 2, and the slider 3 is mounted on the mounting plate 4 by means of threaded fasteners. As shown in the figure, the slider 3 can be easily installed and replaced, so that maintenance operations are easy when the slider 3 is worn.

[0034] In the illustrated embodiment, regarding the threaded fastener installation of the slider 3 on the mounting plate 4, more specifically, the slider 3 is directly fixed to the mounting plate 4 using screws.

[0035] In a preferred embodiment, the mounting plate 4 is mounted on the bracket 1 in a more specific manner, and the mounting plate 4 is welded to the bracket 1. As shown in the figure, the mounting plate 4 can be stably fixed, and the strength structure of the mounting plate 4 and the mounting structure of the slider 3 can be pre-processed during processing, and then the mounting plate 4 is welded to the bracket 1.

[0036] In the illustrated embodiment, a further optimized setting of the utility model is that, as shown in the figure, the plate surface of the mounting plate 4 is parallel to the bottom surface extension direction of the slider 3 at the corresponding position. As shown in the figure, when a slider 3 with a substantially square cross section is used, the slider 3 can be directly mounted on the plate surface at the corresponding position of the mounting plate 4. Specifically, in the embodiment illustrated in the accompanying drawings of the specification, the mounting plate 4 is provided with three sections along the axial direction of the pulley 2.

[0037] In an alternative embodiment, a flat mounting plate 4 may be directly used to set the bottom surfaces of the sliders 3 located on both sides of the pulley 2 to be inclined relative to the top surface thereof, so as to achieve an inclined setting of the bottom surfaces of the sliders 3 .

[0038] In the illustrated embodiment, the structure of the mounting plate 4 is further specifically described as shown in the figure, the mounting plate 4 is integrally formed, and the adjacent mounting plate 4 is bent to form a mounting surface for mounting the slider 3. As shown in the figure, when processing the mounting plate 4, the mounting plate 4 can be directly bent, which is convenient for processing.

[0039] In an alternative embodiment, the mounting plate 4 may also be formed by welding separate plates together.

[0040] In the illustrated embodiment, a further optimized configuration of the utility model is that the bottom surface of the slider 3 located in the middle is inclined upward at both ends. In the embodiment shown in the figure, this can reduce the resistance of the slider 3 during movement.

[0041] In the illustrated embodiment, a further optimized arrangement is that, as shown in the figure, a side slider 5 is provided on the side of the bracket 1. As shown in the figure, by providing the side slider 5, the pulley 2 can be prevented from shaking in the axial direction thereof.

[0042] The side of the bracket 1 mentioned in this part refers to the side of the bracket 1 in the axial direction of the pulley 2.

[0043] In the illustrated embodiment, more specifically, as shown in the figure, the side slider 5 is connected to the bracket 1 through a threaded fastener. As shown in the figure, the side slider 5 can be easily disassembled and assembled.

[0044] In the embodiment shown in the figure, the threaded fastener is more specifically a screw, as shown in the figure, which fixes the side slider 5 to the bracket 1.

[0045] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0046] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A telescopic cylinder guide device for an aerial work vehicle, characterized in that: The invention comprises a support and a pulley rotatably arranged on the support. The support is provided with at least two sliding blocks spaced apart from each other along the axial direction of the pulley on the side of the pulley.

2. The telescopic cylinder guide device for aerial work vehicles according to claim 1, characterized in that: The normal lines of the bottom surfaces of the sliding blocks at both sides are inclined outwards.

3. The telescopic cylinder guide device for aerial work vehicles according to claim 2, characterized in that: The bracket is provided with three sliding blocks at intervals along the axial direction of the pulley on the lower side of the pulley; The normal line of the bottom surface of the sliding block located in the middle is arranged downward.

4. The telescopic cylinder guide device for aerial work vehicles according to claim 1, characterized in that: The bracket is provided with a mounting plate at the lower side of the pulley, and the sliding block is mounted on the mounting plate through a threaded fastener.

5. The telescopic cylinder guide device for aerial work vehicles according to claim 4, characterized in that: The mounting plate is welded to the bracket.

6. The telescopic cylinder guide device for aerial work vehicles according to claim 4, characterized in that: The plate surface of the mounting plate is parallel to the extending direction of the bottom surface of the sliding block at the corresponding position.

7. The telescopic cylinder guide device for aerial work vehicles according to claim 6, characterized in that: The mounting plates are integrally formed, and adjacent mounting plates are bent to form mounting surfaces for mounting the sliders.

8. The telescopic cylinder guide device for aerial work vehicles according to claim 3, characterized in that: The bottom surface of the slider located in the middle is inclined obliquely upward at both ends.

9. The telescopic cylinder guide device for aerial work vehicles according to claim 1, characterized in that: A side sliding block is arranged on the side of the bracket.

10. The telescopic cylinder guide device for aerial work vehicles according to claim 9, characterized in that: The side slider is connected to the bracket by a threaded fastener.

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