Crawler-type chassis anti-loosening structure and crawler

Abstract

The crawler-type chassis anti-loosening structure comprises a crawler-type chassis, the upper end of the crawler-type chassis is fixedly provided with a sinking groove, and the side edges of the sinking groove are respectively provided with an inclined face; the two locking blocks are fixedly connected to the two ends of the chassis weldment in a clamped mode respectively, and the other ends of the locking blocks abut against the inclined face all the time. And the locking blocks are respectively mounted on the crawler chassis through locking bolts. After the locking blocks are installed, the two sides of the chassis weldment are clamped by the locking blocks respectively, the locking bolts are continuously screwed, the wedge-shaped faces are continuously attached to the inclined faces, and therefore positive pressure in the horizontal direction is generated on the two sides of the chassis weldment. And when the chassis weldment and the crawler chassis are vibrated again, the chassis weldment does not only limit the relative sliding of the chassis weldment and the crawler chassis only by the shearing force generated by the bolts in the horizontal direction. Therefore, vibration of the whole structure in the horizontal direction is reduced, and meanwhile the connecting rigidity and stability of the whole chassis weldment and the crawler chassis are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crawlers, and in particular relates to a crawler type chassis anti-loosening structure and a crawler vehicle. Background Art

[0002] The crawler chassis can move in harsh and complex places, and it is one of the important walking equipment of construction machinery and agricultural machinery.

[0003] At present, when the chassis of a self-propelled crawler scissor-type aerial work platform is self-propelled, the crawler tracks vibrate periodically during the walking process, causing the connecting bolts between the chassis welding parts and the crawler chassis to loosen. On the one hand, it not only affects the service life of the carried mechanical equipment, but also makes the driver very uncomfortable and easily fatigued during the operation process. In addition, the loosening of the bolts during the walking process will bring great safety hazards.

[0004] Therefore, in order to solve the problem of loose connection caused by vibration of crawler chassis, it is urgent to design an anti-loosening structure to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a crawler chassis anti-loosening structure and a crawler vehicle, so as to solve the problem of loosening caused by vibration of crawler connection proposed in the above background technology. The following technical solution is provided: A crawler chassis anti-loosening structure and a crawler vehicle, comprising:

[0006] A crawler chassis, wherein a sink is fixedly provided at the upper end of the crawler chassis, and inclined surfaces are respectively provided at the sides of the sink;

[0007] Chassis weldment, fastened to the upper end of the crawler chassis;

[0008] There are two locking blocks, which are respectively fixed and clamped at two ends of the chassis weldment, and the other end of the locking block always abuts against the inclined surface.

[0009] The lower end surface of the sink is evenly provided with mounting holes, and threaded holes are also provided at both ends of the bottom of the sink.

[0010] The middle of the chassis weldment is evenly provided with first through holes, and the first through holes are aligned with the mounting holes in the vertical direction. The middle of the bolt passes through the first through holes and the mounting holes, and the chassis weldment is fastened to the crawler chassis through a nut.

[0011] In the technical solution, when the chassis weldment and the crawler chassis are fastened and connected by welding or other methods in a common manner, since the entire structure is the connection between the chassis of the crawler vehicle and other upper components, the vibration generated during the operation of the crawler vehicle is transmitted to this connection, resonates with the connection end of the chassis weldment and the crawler chassis, and the long-term vibration causes the bolts and nuts to loosen.

[0012] In the present application, locking blocks are respectively attached to both sides of the chassis weldment, and the wedge-shaped surface is fitted with the inclined surface, and the inclined surface structure is used to realize the clamping connection between the locking block and the crawler chassis. And when the chassis weldment is installed, the two locking blocks are respectively placed on both sides of the chassis weldment, so that the entire chassis weldment can be stably embedded in the sink.

[0013] In any of the above technical solutions, further, one end of the locking block is provided with a wedge-shaped surface, and the wedge-shaped surface is in contact with the inclined surface.

[0014] A second through hole is provided in the middle of the locking block, and the second through hole is aligned with the threaded hole in vertical direction. The middle of the locking bolt passes through the second through hole and is tightly connected with the threaded hole.

[0015] In the present technical solution, when the entire structure is installed, the chassis weldment and the track chassis are first fastened together by bolts and nuts. The locking blocks are installed with the track chassis by locking bolts, and the installation sequence is after the chassis weldment is installed. After the locking blocks are installed, the two sides of the chassis weldment are clamped by the locking blocks, and the locking bolts are continuously tightened, and the wedge surface is continuously pressed against the inclined surface. As the locking block moves downward, positive pressure is generated in the horizontal direction on both sides of the chassis weldment. After the chassis weldment and the track chassis are vibrated again, the chassis weldment no longer relies solely on the shear force generated by the bolts in the horizontal direction to limit the relative sliding of the chassis weldment and the track chassis. This reduces the vibration of the entire structure in the horizontal direction, and also improves the stiffness and stability of the connection between the entire chassis weldment and the track chassis.

[0016] In any of the above technical solutions, further, a crawler vehicle is provided, wherein a scissor arm is fixedly provided at the upper end of a chassis weldment, a working platform is fixedly provided at the upper end of the scissor arm, and a controller for controlling the movement of the vehicle body is also provided on the working platform.

[0017] In the present technical solution, the controller is installed on the working platform, the working platform is installed on the scissor arms, the scissor arms are installed on the upper end of the chassis weldment, the chassis weldment is installed on the crawler chassis, the chassis weldment and the crawler chassis are connected by bolts and nuts, the locking block is installed between the chassis weldment and the crawler chassis, and the wedge surface is brought into contact with the inclined surface by the locking bolt to lock the chassis weldment and the crawler chassis.

[0018] When the controller controls the vehicle body to move forward / backward, the entire machine moves forward and backward. During driving, the impact of the track will be transmitted to the chassis weldment through the track chassis. Since the locking block bears the vibration in the forward and backward directions, the bolts and nuts are not easy to loosen.

[0019] The beneficial effects of the utility model are as follows: in the present application, the chassis weldment and the crawler chassis are first fastened together by bolts and nuts. The locking blocks are respectively installed with the crawler chassis by means of locking bolts, and the installation sequence is after the chassis weldment is installed. After the locking blocks are installed, the two sides of the chassis weldment are clamped by the locking blocks respectively, and the locking bolts are continuously tightened, and the wedge-shaped surface is continuously pressed against the inclined surface. As the locking block position is continuously moved downward, positive pressure is generated in the horizontal direction on both sides of the chassis weldment. After the chassis weldment and the crawler chassis are vibrated again, the chassis weldment no longer relies solely on the shear force generated in the horizontal direction by the bolts to limit the relative sliding of the chassis weldment and the crawler chassis. Thereby, the vibration of the entire structure in the horizontal direction is reduced, and at the same time, the rigidity and stability of the connection between the entire chassis weldment and the crawler chassis are also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the appearance of the crawler vehicle in the utility model;

[0021] Figure 2 It is an assembly diagram of the anti-loosening structure in the utility model;

[0022] Figure 3 It is an installation schematic diagram of the anti-loosening structure in the utility model.

[0023] The reference numerals in the figure are: 10, controller; 20, working platform; 30, scissor arm; 40, chassis weldment; 41, first through hole; 50, crawler chassis; 51, mounting hole; 52, countersunk groove; 53, inclined surface; 54, threaded hole; 60, bolt; 70, nut; 80, locking block; 81, wedge surface; 82, second through hole; 90, locking bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0025] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] Embodiment 1:

[0027] like Figure 2-3 As shown, this embodiment provides a crawler chassis anti-loosening structure and a crawler vehicle, including:

[0028] A crawler chassis 50, wherein a sink 52 is fixedly disposed at the upper end of the crawler chassis 50, and inclined surfaces 53 are disposed at the sides of the sink 52;

[0029] The chassis weldment 40 is fastened to the upper end of the crawler chassis 50;

[0030] There are two locking blocks 80 , which are fixedly connected to two ends of the chassis weldment 40 , respectively, and the other end of the locking block 80 always abuts against the inclined surface 53 .

[0031] Mounting holes 51 are evenly formed on the lower end surface of the sink 52 , and threaded holes 54 are formed at both ends of the bottom of the sink 52 .

[0032] The middle of the chassis weldment 40 is evenly provided with first through holes 41, and the first through holes 41 are aligned with the mounting holes 51. The middle of the bolt 60 passes through the first through holes 41 and the mounting holes 51, and the chassis weldment 40 is fastened to the crawler chassis 50 by the nut 70.

[0033] In the present technical solution, when the chassis weldment 40 and the crawler chassis 50 are fastened and connected by welding or other methods in a common manner, since the entire structure is the connection between the chassis of the crawler vehicle and other upper components, the vibration generated during the operation of the crawler vehicle is transmitted to this connection, resonates with the connection end of the chassis weldment 40 and the crawler chassis 50, and the long-term vibration causes the bolts 60 and the nuts 70 to loosen.

[0034] In the present application, locking blocks 80 are respectively added to both sides of the chassis weldment 40, and the wedge-shaped surface 81 is fitted with the inclined surface 53, and the inclined surface structure is used to realize the clamping connection between the locking block 80 and the crawler chassis 50. And when the chassis weldment 40 is installed, the two locking blocks 80 are respectively placed on both sides of the chassis weldment 40, so that the entire chassis weldment 40 can be stably embedded in the sink 52.

[0035] In a preferred embodiment of the present invention:

[0036] like Figure 2-3 As shown, specifically, a wedge-shaped surface 81 is provided at one end of the locking block 80 , and the wedge-shaped surface 81 is in contact with the inclined surface 53 .

[0037] A second through hole 82 is formed in the middle of the locking block 80 , and the second through hole 82 is aligned with the threaded hole 54 in the vertical direction. The middle of the locking bolt 90 passes through the second through hole 82 and is tightly connected with the threaded hole 54 .

[0038] In the technical solution, when the whole structure is installed, the chassis weldment 40 and the crawler chassis 50 are first fastened together by the bolts 60 and the nuts 70. The locking block 80 is installed with the crawler chassis 50 by the locking bolts 90, and the installation sequence is after the chassis weldment 40 is installed. After the locking block 80 is installed, the two sides of the chassis weldment 40 are clamped by the locking block 80 respectively, and the locking bolts 90 are continuously tightened, and the wedge surface 81 is continuously pressed against the inclined surface 53. As the position of the locking block 80 moves downward, positive pressure in the horizontal direction is generated on the two sides of the chassis weldment 40. After the chassis weldment 40 and the crawler chassis 50 are vibrated again, the chassis weldment 40 no longer relies solely on the bolts 60 to generate shear force in the horizontal direction to limit the relative sliding of the chassis weldment 40 and the crawler chassis 50. Thereby reducing the vibration of the whole structure in the horizontal direction, and at the same time improving the rigidity and stability of the connection between the whole chassis weldment 40 and the crawler chassis 50.

[0039] In a preferred embodiment of the present invention:

[0040] like Figure 1 As shown, specifically, a crawler vehicle has a scissor arm 30 fixedly disposed on the upper end of a chassis weldment 40, a working platform 20 fixedly disposed on the upper end of the scissor arm 30, and a controller 10 for controlling the movement of the vehicle body is also disposed on the working platform 20.

[0041] In the present technical solution, the controller 10 is installed on the working platform 20, the working platform 20 is installed on the scissor arm 30, the scissor arm 30 is installed on the upper end of the chassis weldment 40, the chassis weldment 40 is installed on the crawler chassis 50, the chassis weldment 40 and the crawler chassis 50 are connected by bolts 60 and nuts 70, the locking block 80 is installed between the chassis weldment 40 and the crawler chassis 50, and the wedge surface 81 is brought into contact with the inclined surface 53 by the locking bolt 90 to lock the chassis weldment 40 and the crawler chassis 50.

[0042] When the controller 10 controls the vehicle body to move forward / backward, the entire machine moves forward and backward. During driving, the impact of the track will be transmitted to the chassis weldment 40 through the track chassis 50. Since the locking block 80 withstands the vibration in the forward and backward directions, the bolts 60 and the nuts 70 are not easy to loosen.

[0043] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A crawler chassis anti-loosening structure, characterized in that: include: A crawler chassis (50), wherein a sink (52) is fixedly provided at the upper end of the crawler chassis (50), and inclined surfaces (53) are respectively provided at the sides of the sink (52); A chassis weldment (40) is fastened to the upper end of the crawler chassis (50); The locking blocks (80) are provided in two pieces. The two locking blocks (80) are respectively fixedly clamped at two ends of the chassis weldment (40), and the other end of the locking block (80) always abuts against the inclined surface (53).

2. The crawler chassis anti-loosening structure according to claim 1, characterized in that: The lower end surface of the sink groove (52) is evenly provided with mounting holes (51), and threaded holes (54) are also provided at both ends of the bottom of the sink groove (52).

3. The crawler chassis anti-loosening structure according to claim 2, characterized in that: The middle of the chassis weldment (40) is evenly provided with first through holes (41), and the first through holes (41) are aligned with the mounting holes (51) in the vertical direction.

4. The crawler chassis anti-loosening structure according to claim 3, characterized in that: The middle portion of the bolt (60) passes through the first through hole (41) and the mounting hole (51), and the chassis weldment (40) is fastened to the crawler chassis (50) via a nut (70).

5. The crawler chassis anti-loosening structure according to claim 2, characterized in that: One end of the locking block (80) is provided with a wedge-shaped surface (81), and the wedge-shaped surface (81) is in contact with the inclined surface (53).

6. The crawler chassis anti-loosening structure according to claim 5, characterized in that: A second through hole (82) is provided in the middle of the locking block (80), and the second through hole (82) is aligned vertically with the threaded hole (54).

7. The crawler chassis anti-loosening structure according to claim 5, characterized in that: The middle portion of the locking bolt (90) passes through the second through hole (82) and is tightly connected to the threaded hole (54).

8. A crawler vehicle used for the crawler chassis anti-loosening structure according to any one of claims 1 to 7, characterized in that: A scissor arm (30) is fixedly provided at the upper end of the chassis weldment (40), a working platform (20) is fixedly provided at the upper end of the scissor arm (30), and a controller (10) for controlling the movement of the vehicle body is also provided on the working platform (20).

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