Mounting structure for telescopic beam and main beam of compact crane

Abstract

The utility model discloses an installation structure of a telescopic beam and a main beam of a compact crane, both sides of the top of the main beam are provided with chutes, the telescopic beam is installed on the main beam through a hoisting assembly, the bottom of the hoisting assembly is fixed with the telescopic beam, and the upper part of the hoisting assembly is arranged in the chutes of the main beam in a sliding manner, so that the telescopic beam is hoisted on the main beam. By arranging the hoisting assembly, the installation structure that a telescopic beam is hoisted at the bottom of a main beam in the prior art is changed into the mode that the telescopic beam is hoisted above the main beam through the hoisting assembly, the installation structure can be compressed, a larger space is provided for an operation room, and meanwhile stress on the bottom of the main beam in the prior art is changed into stress on the upper portion of the main beam; the stability of installation between the main beam and the telescopic beam is improved through transformation of stress points, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hoisting, in particular to an installation structure of a telescopic beam and a main beam of a compact crane. Background Art

[0002] A bridge crane is a lifting equipment that is horizontally mounted above workshops, warehouses and material yards to lift materials. Because its two ends are located on tall concrete columns or metal brackets, it is shaped like a bridge. The bridge of the bridge crane runs longitudinally along the tracks laid on the elevated structures on both sides, and can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and most numerous type of lifting machinery. However, the installation method of the telescopic beam and the main beam in the bridge crane in the prior art is usually that the telescopic beam is suspended at the bottom of the main beam. This installation structure is not suitable for some situations where the operating space is small. In a small operating space, the installation method between the telescopic beam and the main beam needs to be more compact. By compressing the installation structure as much as possible to increase the operating space, costs can be saved and efficiency can be higher.

[0003] To this end, the utility model provides a compact crane telescopic beam and main beam installation structure to solve the above technical problems. Utility Model Content

[0004] Purpose of the utility model: To solve the problem that the installation method of the telescopic beam and the main beam in the bridge crane in the prior art is usually that the telescopic beam is suspended at the bottom of the main beam, and this installation structure is not suitable for some situations with small operating space.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A compact crane telescopic beam and main beam installation structure, wherein slide grooves are arranged on both sides of the top of the main beam, and the telescopic beam is installed on the main beam through a lifting assembly, the bottom of the lifting assembly is fixed to the telescopic beam, and the upper part is slidably arranged in the slide groove of the main beam, so that the telescopic beam is lifted on the main beam.

[0007] Furthermore, the hoisting assembly comprises:

[0008] A mounting column, the lower end of which is fixedly mounted on the side of the telescopic beam;

[0009] A pin shaft, which is fixedly mounted on the upper end of the mounting column by means of bolts and extends to the top of the slide slot;

[0010] A limit plate, wherein the limit plate is fixed on the pin shaft, the width between the limit plates is slightly larger than the width of the slide slot, and the bottom of the limit plate is infinitely close to the slide slot;

[0011] A pulley is rotatably arranged between the limit plates through an installation shaft, and the pulley is arranged in a slide groove.

[0012] Furthermore, at least two groups of pulleys are arranged between the limiting plates.

[0013] Furthermore, at least eight groups of the hoisting components are arranged between the telescopic beam and the main beam.

[0014] Furthermore, a driving device for driving the hoisting components is provided on the two frontmost groups of hoisting components in the relative movement direction of the telescopic beam and the main beam.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting a hoisting component, the installation structure in which the telescopic beam is hoisted at the bottom of the main beam in the prior art is transformed into a structure in which the telescopic beam is hoisted above the main beam through the hoisting component. This can not only compress the installation structure to provide a larger space for the operating room, but also transform the force on the bottom of the main beam in the prior art into the force on the upper part of the main beam. The transformation of the force point increases the stability of the installation between the main beam and the telescopic beam and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model.

[0019] In the figure: 1, main beam; 101, slide; 2, telescopic beam; 3, lifting assembly; 301, mounting column; 302, pin shaft; 303, limit plate; 304, pulley. DETAILED DESCRIPTION

[0020] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0021] The applicant believes that the installation method of the telescopic beam and the main beam in the bridge crane in the prior art is usually that the telescopic beam is suspended at the bottom of the main beam. This installation structure is not suitable for some situations with small operating space.

[0022] To this end, the applicant designed Figure 1-2 The installation structure of a telescopic beam 2 and a main beam 1 of a compact crane is shown, and slide grooves 101 are arranged on both sides of the top of the main beam 1. The telescopic beam 2 is installed on the main beam 1 through a lifting assembly 3. The bottom of the lifting assembly 3 is fixed to the telescopic beam 2, and the upper part is slidably arranged in the slide groove 101 of the main beam 1, so that the telescopic beam 2 is lifted on the main beam 1.

[0023] Further optionally, the lifting assembly 3 of this embodiment includes: a mounting column 301, the lower end of which is fixedly mounted on the side of the telescopic beam 2; a pin 302, the pin 302 is fixedly mounted on the upper end of the mounting column 301 by bolts and extends to the top of the slide groove 101; a limit plate 303, the limit plate 303 is fixed on the pin 302, the width between the limit plates 303 is slightly larger than the width of the slide groove 101, and the bottom of the limit plate 303 is infinitely close to the slide groove 101; a pulley 304, the pulley 304 is rotatably arranged between the limit plates 303 through the mounting shaft, and the pulley 304 is arranged in the slide groove 101.

[0024] In this embodiment, it is further optional that at least two groups of pulleys 304 are provided between the limiting plates 303 .

[0025] In this embodiment, it is further optional that at least eight groups of hoisting components 3 are arranged between the telescopic beam 2 and the main beam 1 .

[0026] In the present embodiment, further optionally, a driving device for driving the hoisting components 3 is provided on the two frontmost groups of hoisting components 3 in the relative movement direction of the telescopic beam 2 and the main beam 1.

[0027] Installation principle: When installing the telescopic beam 2 and the main beam 1, first fix the installation column 301 to the telescopic beam 2, then install the pin 302, the limit plate 303 and the pulley 304 in sequence, and finally engage the installed lifting assembly 3 into the slide groove 101 to complete the installation of the telescopic beam 2.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A compact crane telescopic beam and main beam installation structure, characterized in that: Slide grooves are arranged on both sides of the top of the main beam, and the telescopic beam is installed on the main beam through a hoisting assembly. The bottom of the hoisting assembly is fixed to the telescopic beam, and the upper part is slidably arranged in the slide groove of the main beam, so that the telescopic beam is hoisted on the main beam; the hoisting assembly includes: A mounting column, the lower end of which is fixedly mounted on the side of the telescopic beam; A pin shaft, which is fixedly mounted on the upper end of the mounting column by means of bolts and extends to the top of the slide slot; A limit plate, wherein the limit plate is fixed on the pin shaft, the width between the limit plates is slightly larger than the width of the slide slot, and the bottom of the limit plate is infinitely close to the slide slot; A pulley is rotatably arranged between the limit plates through an installation shaft, and the pulley is arranged in a slide groove.

2. The installation structure of telescopic beam and main beam of a compact crane according to claim 1, characterized in that: At least two groups of pulleys are arranged between the limiting plates.

3. The installation structure of telescopic beam and main beam of a compact crane according to claim 1, characterized in that: At least eight groups of the hoisting components are arranged between the telescopic beam and the main beam.

4. A compact crane telescopic beam and main beam installation structure according to any one of claims 1 to 3, characterized in that: A driving device for driving the hoisting components is arranged on the two frontmost groups of hoisting components in the relative movement direction of the telescopic beam and the main beam.

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