CN220618197U - Carriage fixing device of crane truck - Google Patents

Abstract

The utility model relates to the technical field of lifting vehicles and discloses a lifting vehicle carriage fixing device which comprises a carriage connecting piece and a chassis connecting piece, wherein the carriage connecting piece is welded on a lifting vehicle carriage, the chassis connecting piece is welded on a lifting vehicle chassis, connecting holes are formed in the carriage connecting piece and the chassis connecting piece in a penetrating mode, bolts are arranged in the connecting holes, and fastening components are arranged on the surfaces of the bolts. In the use process, if the first nut generates a loosening trend, namely, when the first nut rotates leftwards, the loosening force of the first nut can be directly converted into the tightening force of the second nut due to the reverse rotation direction of the second nut, so that the loosening of the first nut is avoided.

Description

Carriage fixing device of crane truck

Technical Field

The utility model relates to the technical field of lifting vehicles, in particular to a carriage fixing device of a lifting vehicle.

Background

The lifting vehicle mainly comprises a hanging system and a winch, and also comprises a lifting mechanism, an amplitude changing mechanism, a slewing mechanism, a hoisting mechanism, a carriage, a chassis and the like, wherein the weight is lifted by the hydraulic system.

Under the prior art, the welding has a set of connecting piece on the carriage of crane, also welds a set of connection on the chassis of crane, and the connecting piece on the carriage is fixed through the bolt and nut mutually supporting on the connecting piece on the chassis to realize the connection between carriage and the chassis and fix, but because the crane is in the use, the automobile body vibrations shake comparatively serious, after long-time operation, bolt and nut all can produce not hard up, thereby lead to producing not hard up between carriage and the chassis, exist certain danger.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a crane carriage fixing device, so as to solve the above-mentioned problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a crane carriage fixing device, includes carriage connecting piece and chassis connecting piece, the carriage connecting piece welds on the crane carriage, the chassis connecting piece welds on the crane carriage chassis, all run through on carriage connecting piece and the chassis connecting piece and seted up the connecting hole, be provided with the bolt in the connecting hole, bolt surface mounting has fastening component, detection component is installed to carriage connecting piece deviates from chassis connecting piece one side.

Preferably, the surface of the bolt is provided with external threads, and the external threads are bidirectional threads.

Preferably, the fastening assembly comprises a first nut, a spring washer is arranged on the side, facing the chassis connecting piece, of the first nut, and a second nut is arranged on the side, facing away from the chassis connecting piece, of the first nut.

Preferably, the inner walls of the first nut and the second nut are respectively provided with an internal thread, the internal threads are matched with the external threads, the internal threads of the first nut are right-handed internal threads, and the internal threads of the second nut are left-handed internal threads.

Preferably, the detection assembly comprises an angle sensor and an information processing terminal, a built-in groove is formed in one end of the bolt, the angle sensor is fixedly installed in the built-in groove, a positioning groove is formed in one side, away from the chassis connecting piece, of the carriage connecting piece, and the information processing terminal is fixedly installed in the positioning groove.

Preferably, the angle sensor is electrically connected with the input end of the information processing terminal through a first circuit, and the output end of the information processing terminal is electrically connected with a second circuit.

Preferably, one end of the second circuit, which is far away from the information processing terminal, is electrically connected with the center console of the crane.

The utility model has the technical effects and advantages that:

1. in the use process, if the first nut generates a loosening trend, namely, when the first nut rotates leftwards, the loosening force of the first nut can be directly converted into the tightening force of the second nut due to the reverse rotation direction of the second nut, so that the loosening of the first nut is avoided.

2. This practicality is in the use, when the bolt produced not hard up, the bolt can rotate certain angle, angle sensor can detect bolt pivoted angle to pass through first circuit with it with the form of signal of telecommunication and transmit to information processing terminal, information processing terminal carries out the analysis to the signal of telecommunication and transmits the result of analysis to the lift truck center console through the second circuit, the user can look over the result of analysis on the screen of lift truck center console, knows that the bolt produces not hard up, thereby can fasten the bolt with the instrument, avoid the danger that causes because of the bolt is not hard up.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of the overall structure of the present utility model.

Fig. 3 is a cross-sectional view of the overall structure of the present utility model.

Fig. 4 is a cross-sectional view of a fastening assembly of the present utility model.

Fig. 5 is an exploded view of the detection assembly of the present utility model.

The reference numerals are: 1. a car connecting piece; 11. a positioning groove; 2. a chassis connection; 3. a bolt; 31. a built-in groove; 4. a fastening assembly; 41. a spring washer; 42. a first nut; 43. a second nut; 5. a detection assembly; 51. an angle sensor; 52. an information processing terminal; 53. a first line; 54. and a second line.

Detailed Description

The embodiments of the present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which the configurations of the embodiments described below are merely illustrative, and a car body fixing device for a lift truck according to the present utility model is not limited to the configurations described below, but all other embodiments obtained by a person skilled in the art without any inventive effort are within the scope of the present utility model.

The utility model provides a crane carriage fixing device which comprises a carriage connecting piece 1 and a chassis connecting piece 2, wherein the carriage connecting piece 1 is welded on a crane carriage, the chassis connecting piece 2 is welded on a crane chassis, connecting holes are formed in the carriage connecting piece 1 and the chassis connecting piece 2 in a penetrating manner, bolts 3 are arranged in the connecting holes, a fastening component 4 is arranged on the surface of the bolts 3, and a detection component 5 is arranged on one side, away from the chassis connecting piece 2, of the carriage connecting piece 1.

Further, the surface of the bolt 3 is provided with external threads, the external threads are bidirectional threads, the fastening assembly 4 comprises a first nut 42, a spring washer 41 is arranged on one side of the first nut 42, facing to the chassis connecting piece 2, of the first nut 42, a second nut 43 is arranged on one side of the first nut 42, facing away from the chassis connecting piece 2, of the first nut 42, internal threads are arranged on the inner wall of the first nut 42 and the inner wall of the second nut 43, the internal threads of the first nut 42 are right-handed internal threads, the internal threads of the second nut 43 are left-handed internal threads, the external threads on the surface of the bolt 3 are bidirectional threads, the first nut 42 and the second nut 43 can be screwed to the surface of the bolt 3, when the first nut 42 rotates leftwards due to loosening trend, the loosening force of the first nut 42 can be directly converted into the screwing force of the second nut 43, and after the spring washer 41 is flattened by the first nut 42, the spring washer 41 can generate continuous elastic force, and the threaded connection position of the first nut 42 and the bolt 3 can continuously maintain friction force.

Further, the detecting assembly 5 includes an angle sensor 51 and an information processing terminal 52, a built-in groove 31 is provided at one end of the bolt 3, the angle sensor 51 is fixedly installed in the built-in groove 31, a positioning groove 11 is provided at one side of the carriage connecting piece 1, which is away from the chassis connecting piece 2, the information processing terminal 52 is fixedly installed in the positioning groove 11, the angle sensor 51 is electrically connected with the input end of the information processing terminal 52 through a first line 53, the output end of the information processing terminal 52 is electrically connected with a second line 54, one end of the second line 54, which is away from the information processing terminal 52, is electrically connected with a central console of the crane, when the bolt 3 rotates, the angle sensor 51 detects the rotation angle of the bolt 3 and transmits the rotation angle to the information processing terminal 52 in the form of an electric signal through the first line 53, and the information processing terminal 52 analyzes the electric signal and transmits the analysis result to the central console of the crane through the second line 54.

The working principle of the utility model is as follows: when mounting the lift truck cabin to the lift truck chassis, the user aligns the connection holes on the cabin connection piece 1 and the connection holes on the chassis connection piece 2, passes the bolt 3 through the two connection holes, sleeves the spring washer 41 on the surface of the bolt 3, and then screws the first nut 42 and the second nut 43 to the surface of the bolt 3 in sequence.

When the first nut 42 and the second nut 43 are used, the first nut 42 will generate a loosening tendency, i.e. the first nut 42 rotates leftwards, but the rotation direction of the second nut 43 is opposite to that of the first nut 42, so that the loosening force of the first nut 42 is directly converted into the tightening force of the second nut 43, thereby avoiding loosening of the first nut 42, and after the spring washer 41 is flattened by the first nut 42, the spring washer 41 will generate a continuous elastic force, so that the threaded connection part of the first nut 42 and the bolt 3 continuously maintains friction force, generating a resisting moment, and preventing loosening of the first nut 42.

When the bolt 3 loosens, the bolt 3 rotates by a certain angle, the angle sensor 51 detects the rotation angle of the bolt 3 and transmits the rotation angle to the information processing terminal 52 in the form of an electric signal through the first circuit 53, the information processing terminal 52 analyzes the electric signal and transmits the analysis result to the central console of the crane through the second circuit 54, and a user can check the analysis result on the screen of the central console of the crane to know that the bolt 3 loosens.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. The utility model provides a crane carriage fixing device, includes carriage connecting piece (1) and chassis connecting piece (2), its characterized in that, carriage connecting piece (1) welds on the crane carriage, chassis connecting piece (2) welds on the crane carriage chassis, all run through on carriage connecting piece (1) and chassis connecting piece (2) and seted up the connecting hole, be provided with bolt (3) in the connecting hole, bolt (3) surface mounting has fastening component (4), detection component (5) are installed to carriage connecting piece (1) deviating from chassis connecting piece (2) one side.

2. A lifting car compartment fastening device according to claim 1, characterized in that the bolt (3) is provided with an external thread on the surface, which is a bi-directional thread.

3. A jack car securing device according to claim 1, characterized in that the fastening assembly (4) comprises a first nut (42), the first nut (42) being provided with a spring washer (41) on the side facing the chassis connection (2), the first nut (42) being provided with a second nut (43) on the side facing away from the chassis connection (2).

4. A lifting car compartment fastening device according to claim 3, characterized in that the inner walls of the first nut (42) and the second nut (43) are provided with internal threads, the internal threads are matched with external threads, the internal threads of the first nut (42) are right-handed internal threads, and the internal threads of the second nut (43) are left-handed internal threads.

5. The lifting car carriage fixing device according to claim 1, wherein the detection assembly (5) comprises an angle sensor (51) and an information processing terminal (52), a built-in groove (31) is formed in one end of the bolt (3), the angle sensor (51) is fixedly installed in the built-in groove (31), a positioning groove (11) is formed in one side, away from the chassis connecting piece (2), of the carriage connecting piece (1), and the information processing terminal (52) is fixedly installed in the positioning groove (11).

6. The jack car body fixing device according to claim 5, wherein the angle sensor (51) is electrically connected to an input end of the information processing terminal (52) through a first circuit (53), and an output end of the information processing terminal (52) is electrically connected to a second circuit (54).

7. The lift truck bed securing device of claim 6, wherein an end of the second circuit (54) remote from the information processing terminal (52) is electrically connected to a lift truck center console.