Lorry-mounted crane jib reinforcing structure

Abstract

The utility model relates to a lorry-mounted crane jib reinforcing structure, and belongs to the technical field of crane jibs, the lorry-mounted crane jib reinforcing structure comprises a base, a jib located on the base and a reinforcing rod rotatably connected to the jib, a connecting seat is fixedly mounted at the top of the base, the jib is rotatably connected to the connecting seat, and the reinforcing rod is rotatably connected to the connecting seat. And a hydraulic rod connected to the suspension arm is rotationally mounted on the base. According to the lorry-mounted crane lazy arm reinforcing structure, the lazy arm is pushed to rise by the hydraulic rod on one side, meanwhile, the reinforcing rod is rotationally installed on the other side face of the lazy arm, the lazy arm which is pushed by the hydraulic rod to incline is supported by the reinforcing rod, and meanwhile, the sleeve and the supporting arm slide relatively; by means of the structure, the original suspension arm can slide towards the side face by a certain amplitude, meanwhile, the supporting beam, the loading base and the supporting rod are arranged to maintain the stability of the supporting beam, the sleeve and the supporting arm abut against each other for bearing, the lateral position of the suspension arm is supported, and it is guaranteed that the supporting strength of the suspension arm is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of crane jibs, in particular to a truck-mounted crane jib reinforcing structure. BACKGROUND

[0002] The truck-mounted crane is a lifting device installed on an automobile chassis and is widely applied to the construction, logistics and transportation industries.

[0003] The truck-mounted crane jib is controlled to rotate by a hydraulic cylinder, so that the lifting hook at the jib end performs a lifting action, and the jib is attached to the crane and moves with the hydraulic cylinder. After the angle between the jib and the hydraulic cylinder is adjusted to deviate from the midpoint position, the traction force of the jib is mainly concentrated at the connecting point of the jib and the hydraulic cylinder, and therefore the structural strength of the crane jib has room for improvement. To solve the above problems, a truck-mounted crane jib reinforcing structure is provided. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the application provides a truck-mounted crane jib reinforcing structure, which has the advantages of reversely supporting and reinforcing the crane jib.

[0005] To achieve the above object, the application provides the following technical scheme: a truck-mounted crane jib reinforcing structure, comprising a base, a jib located on the base and a reinforcing rod rotatably connected to the jib, a connecting seat fixedly installed on the top of the base, the jib being rotatably connected to the connecting seat, and a hydraulic rod rotatably installed on the base and connected to the jib.

[0006] The reinforcing rod comprises a sleeve and a supporting arm slidably connected to the sleeve, and a supporting beam is fixedly installed in the inner wall of the reinforcing rod.

[0007] Further, a stabilizing seat is fixedly installed on the side surface of the base, a telescopic arm is slidably installed on the top end of the jib, and a lifting hook is arranged at the end of the telescopic arm.

[0008] Further, a supporting seat is further fixedly installed on the side surface of the connecting seat.

[0009] Further, the reinforcing rod is located on the side surface of the connecting seat away from the hydraulic rod.

[0010] Further, a hinged seat is rotatably installed at the end of the sleeve away from the supporting arm, and one end of the supporting arm is rotatably connected to the jib.

[0011] Further, a loading seat is further fixedly installed on the supporting beam, and a supporting rod is connected between the loading seat and the inner wall of the sleeve.

[0012] Further, the inside of the support rod is penetrated by a welding rod, the welding rod is fixedly connected to the support base, a support foot is fixedly connected to the other end of the support rod, the support foot is composed of an L-shaped corner frame vertical welding steel plate, and the support rod is welded to the steel plate.

[0013] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0014] The truck-mounted crane boom reinforcing structure can make the original boom slide to the side by a certain amplitude, and the sleeve and the support arm abut against each other to bear and support the lateral position of the boom, so that the support of the boom is improved in strength. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0016] Fig. 2 It is a structure side view of the boom of the present application;

[0017] Fig. 3 It is a structure schematic diagram of the reinforcing rod of the present application.

[0018] In the figure: 1, base; 2, stabilizing seat; 3, connecting seat; 4, boom; 5, telescopic arm; 6, lifting hook; 7, hydraulic rod; 8, support base; 9, reinforcing rod; 91, sleeve; 92, support arm; 93, hinged seat; 94, support beam; 95, loading seat; 96, support foot; 97, support rod; 98, welding rod. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figs. 1 to 3 The truck-mounted crane boom reinforcing structure in the embodiments comprises a base 1, a boom 4 located on the base 1, and a reinforcing rod 9 rotatably connected to the boom 4, wherein the top of the base 1 is fixedly provided with a connecting seat 3, the boom 4 is rotatably connected to the connecting seat 3, and a hydraulic rod 7 connected to the boom 4 is rotatably installed on the base 1.

[0021] In this way, by pushing the boom 4 relative to the connecting seat 3 to rotate through the hydraulic rod 7, the boom 4 can be swung up.

[0022] In this embodiment, the side of the base 1 is fixedly installed with a stabilizing seat 2 for stabilizing the base 1, and the top end of the boom 4 is slidably installed with a telescopic arm 5, and the end of the telescopic arm 5 is provided with a lifting hook 6 for lifting.

[0023] Preferably, the side of the connecting seat 3 is also fixedly installed with a support seat 8 to facilitate the lifting of the object to be lifted onto the vehicle for effective support.

[0024] It should be noted that the reinforcing rod 9 includes a sleeve 91 and a support arm 92 slidably connected to the sleeve 91, and the reinforcing rod 9 is located on the side of the connecting seat 3 away from the hydraulic rod 7, and the swing of the boom 4 can be supported by the reinforcing rod 9 to improve the stability of the boom 4.

[0025] Preferably, the end of the sleeve 91 away from the support arm 92 is rotatably installed with a hinge seat 93, and the hinge seat 93 is rotatably connected to the support arm 92, so that the sleeve 91 can be raised together with the boom 4 under the rotation of the boom 4.

[0026] In specific implementation, the following are several commonly used materials for hydraulic rod sleeves:

[0027] 1. Carbon steel, characteristics: high strength, good toughness, relatively low cost; application: suitable for general hydraulic systems, but surface treatment is required to prevent corrosion.

[0028] 2. Alloy steel, characteristics: adding alloy elements (such as chromium, nickel, molybdenum, etc.) to improve strength and wear resistance; application: suitable for high-load and high-temperature environment hydraulic systems.

[0029] 3. Stainless steel, characteristics: excellent corrosion resistance and high temperature resistance; application: suitable for corrosive liquids or high temperature environment hydraulic systems, such as food, chemical industry, etc.

[0030] 4. Aluminum alloy, characteristics: light weight, good corrosion resistance, strong thermal conductivity; application: suitable for hydraulic systems with high weight requirements, but relatively low strength.

[0031] 5. Plastic or composite material, characteristics: light weight, corrosion resistant, wear resistant; application: suitable for some special environments or light load hydraulic systems.

[0032] When surface treatment is performed, regardless of the material selected, the hydraulic rod sleeve will usually be surface treated, such as chrome plating, spraying, heat treatment, etc., to improve its wear resistance and corrosion resistance.

[0033] Further, one end of the support arm 92 is rotationally connected with the jib 4, so as to make the support arm 92, the sleeve 91 and the jib 4 form a triangular structure.

[0034] In the embodiment, the support beam 94 is fixedly installed in the inner cavity wall of the reinforcing rod 9, and abuts against the support arm 92 through the support beam 94, so that the sliding of the support arm 92 relative to the sleeve 91 is limited, and the reinforcing rod 9 supports the jib 4.

[0035] In the embodiment, the support beam 94 is further fixedly installed with a loading seat 95, and the support rod 97 is connected between the loading seat 95 and the inner wall of the sleeve 91.

[0036] Preferably, the support rod 97 is formed by oppositely welding two U-shaped steels, and the welding rod 98 is penetrated through the inside of the support rod 97 and fixedly connected with the support base 8, so as to strengthen the connection strength of the support rod 97 relative to the loading seat 95.

[0037] It should be noted that the other end of the support rod 97 is fixedly connected with the support leg 96, and the support leg 96 is formed by a vertically welded steel plate of an L-shaped corner support, and the support rod 97 is welded to the steel plate for connecting the support leg 96.

[0038] The working principle of the above embodiment is as follows:

[0039] The hydraulic rod 7 is controlled to push the jib 4 to swing and rise relative to the connecting seat 3, the telescopic rod 5 at the end of the jib 4 is controlled to extend from the jib 4, so that the hook 6 is used for hoisting, when the jib 4 swings to the side away from the hydraulic rod 7, the support arm 92 rotationally connected with the jib 4 slides relative to the sleeve 91 until the sleeve 91 slides to abut against the support beam 94 in the inner cavity of the support arm 92, at this time, the support beam 94 provides support to the support beam 94 through the loading seat 95 and the support rod 97 on the other side, so that the sleeve 91, the support arm 92 and the jib 4 form a triangular stable structure, thereby reducing the overall stress of the jib 4 and enhancing the support effect of the jib 4, so that the jib 4 is reinforced.

[0040] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0041] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, which can be limited only by the scope of the appended claims and their equivalents.

Claims

1. A mobile crane boom reinforcement structure comprising a base (1), a boom (4) located on the base (1) and a reinforcement bar (9) pivotally connected to the boom (4), characterized in that: The top of the base (1) is fixedly provided with a connecting base (3), the hanging arm (4) is rotatably connected to the connecting base (3), and the base (1) is rotatably provided with a hydraulic rod (7) connected to the hanging arm (4); The reinforcing rod (9) comprises a sleeve (91) and a supporting arm (92) slidably connected to the sleeve (91), and a supporting beam (94) is fixedly installed in the inner cavity wall of the reinforcing rod (9).

2. A luffing boom reinforcement structure for a truck-mounted crane according to claim 1, characterized in that: The side of the base (1) is fixedly provided with a stabilizing base (2), the top end of the hanging arm (4) is slidably provided with a telescopic arm (5), and the end of the telescopic arm (5) is provided with a lifting hook (6).

3. A luffing boom reinforcement structure for a truck mounted crane according to claim 1, characterized in that: The side of the connecting base (3) is also fixedly provided with a supporting base (8).

4. A luffing boom reinforcement structure for a truck mounted crane according to claim 1, characterized in that: The reinforcing rod (9) is located on the side of the connecting base (3) away from the hydraulic rod (7).

5. A luffing boom reinforcement structure for a truck mounted crane according to claim 1, characterized in that: The end of the sleeve (91) away from the supporting arm (92) is rotatably provided with a hinged base (93), and one end of the supporting arm (92) is rotatably connected to the hanging arm (4).

6. A luffing structure for a mobile crane according to claim 3, characterized in that: The supporting beam (94) is also fixedly provided with a loading base (95), and a supporting rod (97) is connected between the loading base (95) and the inner wall of the sleeve (91).

7. A luffing boom reinforcement structure for a truck mounted crane according to claim 6, characterized in that: The inside of the supporting rod (97) is penetrated by a welding rod (98), the welding rod (98) is fixedly connected to the supporting base (8), the other end of the supporting rod (97) is fixedly connected with a supporting leg (96), the supporting leg (96) is composed of an L-shaped corner frame vertical welded steel plate, and the supporting rod (97) is welded to the steel plate.

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