Crawler-type transport vehicle with flat ground support

Abstract

The utility model provides a crawler-type transport vehicle with a flat ground support. The crawler-type transport vehicle with the flat ground support comprises a chassis, a crawler walking mechanism, a cab, a carriage, a supporting arm and a front supporting leg. The vehicle comprises a chassis, a crawler walking mechanism is installed at the bottom of the chassis, a cab and a carriage are installed at the top of the chassis, and the cab and the carriage are arranged at intervals in the length direction of the chassis. When the front supporting legs need to be used, the front supporting legs rotate to the vertical direction and are located below the supporting arms, and a certain supporting effect can be achieved. When the transport vehicle needs to be stored on the chassis, the front supporting legs rotate by 180 degrees to the positions above the supporting arms, the supporting arms are retracted, the supporting arms and the front supporting legs are all stored between the cab and the carriage, the overall width of the transport vehicle is saved, meanwhile, the supporting arms and the front supporting legs can be protected to a certain degree, and traveling and field use of the transport vehicle are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine machinery, and in particular relates to a crawler transport vehicle with flat ground support. Background Art

[0002] Crawler transporters generally use crawler air suspension systems, which have strong off-road capabilities and good stability, and are suitable for various harsh road conditions and environments. They are widely used in coal mining operations to transport materials. Crawler transporters are usually equipped with a chassis, and a material compartment for accommodating materials is installed on the chassis. The current loading method usually uses a loader to dump the materials into the material compartment. During the dumping process, a large impact force will be caused to the material compartment and the chassis. In order to improve the service life and strength of the chassis, support legs are usually installed on the chassis. When receiving materials, the support legs can be unfolded to strengthen the support. However, due to the special structure of the crawler, the support legs will still be located on the outside of the entire vehicle body when they are retracted, thereby increasing the overall width of the crawler transporter, and during the walking process of the crawler transporter, the support legs are easily damaged by external objects, causing inconvenience in the use of the transporter. Utility Model Content

[0003] The embodiment of the utility model provides a crawler transport vehicle with flat ground support, aiming to solve the problem in the prior art that the support legs on the crawler transport vehicle are located outside the vehicle body when in the storage state, causing inconvenience in the use of the transport vehicle.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a crawler transport vehicle with flat ground support, comprising:

[0005] Chassis;

[0006] A crawler walking mechanism, mounted on the chassis;

[0007] A cab, mounted on the chassis;

[0008] A carriage, mounted on the chassis and spaced apart from the cab along the length direction of the chassis, with rear legs mounted at the bottom of the carriage for supporting the carriage on the ground;

[0009] Support arms, the number of which is two, both of which are located between the carriage and the cab and mounted on the chassis, and the positions of the support arms on the chassis are freely adjustable along the width direction of the chassis;

[0010] The front legs are mounted on the ends of the support arms. The positions of the front legs on the support arms have the freedom to be adjusted along the pitch angle. The front legs on the two support arms are respectively located on both sides of the chassis.

[0011] In a possible implementation, a rotating disk is rotatably provided at the end of the support arm, the axis of the rotating disk is arranged along the length direction of the support arm, and the front support leg is mounted on the rotating disk.

[0012] In a possible implementation, a fixing component is further provided between the support arm and the rotating disk, for fixing the rotating disk to the support arm when the front support leg is rotated to a vertical state and is located below the support arm.

[0013] In a possible implementation, the fixing component includes:

[0014] A limiting rod is hingedly arranged on the supporting arm, and an opening groove which is slidably matched with the limiting rod is arranged on the rotating disk;

[0015] The tightening member is threadedly connected to the limiting rod and can be abutted against the rotating disk to prevent the limiting rod from being separated from the opening groove.

[0016] In a possible implementation, a limit plate is fixedly mounted on the chassis, and a clearance groove for accommodating the limit rod is provided on the limit plate.

[0017] In a possible implementation, a positioning pin is slidably provided on the support arm, and when the front support leg is rotated to a vertical state and is located above the support arm, the positioning pin can slide into the open slot.

[0018] In one possible implementation, a mounting sleeve is fixedly mounted on the support arm, the positioning pin is slidably arranged inside the mounting sleeve, a blocking rod is fixedly mounted on the positioning pin, the blocking rod and the positioning pin are arranged perpendicular to each other, and a limiting groove is provided on the side wall of the mounting sleeve for limiting the movement of the blocking rod along the axial direction of the positioning pin.

[0019] In a possible implementation, a baffle plate for abutting against the chassis is fixedly mounted on the outer side of the support arm, and the positioning pin and the limiting rod are both located on a side of the baffle plate close to the front leg.

[0020] Compared with the prior art, the solution shown in the embodiment of the present application includes a chassis, a crawler walking mechanism is installed at the bottom of the chassis, and a cab and a car are installed on the top of the chassis. The cab and the car are spaced apart along the length direction of the chassis, so that a storage space for accommodating support arms and front legs is provided between the cab and the car. A base is fixedly installed on the chassis, and two support arms are slidably arranged on the base, and the two support arms are driven by the hydraulic cylinder to expand to the outside of the chassis or retract into the inside of the chassis. Driven by the hydraulic cylinder, the two support arms extend and move to both sides of the chassis respectively. Front legs are hingedly arranged at the ends of the support arms. When the front legs need to be used, the front legs are rotated to the vertical direction and are located below the support arms, which can play a certain supporting role. When it needs to be stored on the chassis, the front outrigger is rotated 180° to the top of the support arm, and the support arm is retracted so that the support arm and the front outrigger are stored between the cab and the vehicle compartment, saving the overall width of the transport vehicle while providing a certain degree of protection for the support arm and the front outrigger, making it easier for the transport vehicle to move and be used on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a crawler transport vehicle with flat ground support provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the installation structure of the support arm provided in an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the structure of a fixing assembly provided in an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the installation structure of the positioning pin provided in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Chassis; 2. Crawler walking mechanism; 3. Cab; 4. Carriage; 5. Rear outrigger; 6. Support arm; 7. Front outrigger; 71. Turntable; 72. Fixing assembly; 721. Limit rod; 722. Tightening piece; 8. Limit plate; 9. Positioning pin; 91. Mounting sleeve; 92. Stop rod; 10. Baffle. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Please also read Figures 1 to 4, the crawler transport vehicle with flat ground support provided by the utility model is now described. The crawler transport vehicle with flat ground support comprises a chassis 1, a crawler travel mechanism 2, a cab 3, a carriage 4, a support arm 6 and a front support leg 7. The crawler travel mechanism 2 is mounted on the chassis 1; the cab 3 is mounted on the chassis 1; the carriage 4 is mounted on the chassis 1 and is spaced apart from the cab 3 along the length direction of the chassis 1, and a rear support leg 5 for supporting the ground is mounted at the bottom of the carriage 4; there are two support arms 6, both of which are located between the carriage 4 and the cab 3 and are mounted on the chassis 1, and the position of the support arm 6 on the chassis 1 has the freedom to be adjusted along the width direction of the chassis 1; the front support leg 7 is mounted at the end of the support arm 6, and the position of the front support leg 7 on the support arm 6 has the freedom to be adjusted along the pitch angle, and the front support legs 7 on the two support arms 6 are respectively located on both sides of the chassis 1.

[0029] Compared with the prior art, the crawler transport vehicle with flat ground support provided in this embodiment includes a chassis 1, a crawler walking mechanism 2 is installed at the bottom of the chassis 1, and a cab 3 and a car body 4 are installed on the top of the chassis 1. The cab 3 and the car body 4 are arranged at intervals along the length direction of the chassis 1, so that a storage space for accommodating a support arm 6 and a front leg 7 is provided between the cab 3 and the car body 4. A base is fixedly installed on the chassis 1, and two support arms 6 are slidably arranged on the base, and the two support arms 6 are driven by the hydraulic cylinder to expand to the outside of the chassis 1 or retract into the inside of the chassis 1. Under the drive of the hydraulic cylinder, the two support arms 6 extend and move to both sides of the chassis 1 respectively. The front leg 7 is hinged at the end of the support arm 6. When the front leg 7 needs to be used, the front leg 7 is rotated to the vertical direction and is located below the support arm 6, which can play a certain supporting role. When it needs to be stored on the chassis 1, the front support leg 7 is rotated 180° to the top of the support arm 6, and the support arm 6 is retracted so that the support arm 6 and the front support leg 7 are both stored between the cab 3 and the compartment 4, saving the overall width of the transport vehicle while providing a certain degree of protection for the support arm 6 and the front support leg 7, making it easier for the transport vehicle to move and be used on site.

[0030] Specifically, in this embodiment, the crawler walking mechanism 2 adopts the existing technology, which will not be elaborated here.

[0031] Specifically, in this embodiment, the front legs 7 and the rear legs 5 are both extended and retracted using liquid oxygen cylinders. When the front legs 7 and the rear legs 5 are unfolded, they can be supported on the ground, playing a certain supporting role. The front legs 7 and the rear legs 5 each include a supporting portion and a fixed portion that are relatively slidably arranged, the fixed end of the hydraulic cylinder is fixedly mounted on the fixed portion, and the driving end of the hydraulic cylinder is fixedly mounted on the supporting portion, and the supporting portion is used to support the ground.

[0032] In some embodiments, the support arm 6 may be configured as follows: Figure 2 See the structure shown. Figure 2 , a rotating disk 71 is rotatably provided at the end of the support arm 6, the axis of the rotating disk 71 is arranged along the length direction of the support arm 6, and the front support leg 7 is mounted on the rotating disk 71. When the support arm 6 is unfolded, the end of the support arm 6 located outside the chassis 1 is rotatably provided with the rotating disk 71. A rotating shaft is fixedly installed on the rotating disk 71, and the rotating shaft extends to the inside of the support arm 6. A rotating hole that slides with the rotating shaft is arranged inside the support arm 6. The rotating shaft is rotatably arranged inside the rotating hole. The connection strength between the rotating disk 71 and the support arm 6 can be improved. The axis of the rotating disk 71 is coaxially arranged with the rotating shaft and is arranged along the length direction of the support arm 6. The front support leg 7 is mounted on the rotating disk 71 and is arranged perpendicular to the support arm 6. The angle of the support leg can be changed by adjusting the position of the rotating disk 71 on the support arm 6, and the structure is simple and the operation is convenient.

[0033] Specifically, in this embodiment, a mounting shaft for mounting the front leg 7 is provided on the rotating disk 71, and the axis of the mounting shaft is perpendicular to the axis of the rotating rod disk. An anti-rotation pin is provided between the rotating disk 71 and the front leg 7 and is spaced and parallel to the mounting shaft. Both the mounting shaft and the anti-rotation pin penetrate the rotating disk 71 and the front leg 7. Thus, the front leg 7 can be mounted on the rotating disk 71.

[0034] In some embodiments, the rotating disk 71 may be Figure 2 , Figure 3 See also Figure 2 , Figure 3 A fixing assembly 72 is also provided between the support arm 6 and the rotating disk 71 for fixing the rotating disk 71 to the support arm 6 when the front leg 7 is rotated to a vertical state and is located below the support arm 6. When the front leg 7 is rotated to a working position, the rotating disk 71 connected to the front leg 7 can be fixed to the support arm 6 through the fixing assembly 72, so that the front leg 7 always maintains a stable position.

[0035] Preferably, in this embodiment, when the front support leg 7 is in the working state, the front support leg 7 is arranged in the vertical direction, perpendicular to the support arm 6, and located below the support arm 6, and the front support leg 7 is driven by the liquid oxygen cylinder on the front support leg 7 to be supported on the ground.

[0036] In some embodiments, the fixing assembly 72 may be configured as follows: Figure 2 , Figure 3 See also Figure 2 , Figure 3The fixing assembly 72 includes a limiting rod 721 and a tightening member 722. The limiting rod 721 is hingedly arranged on the support arm 6, and an open groove that slides with the limiting rod 721 is arranged on the rotating disk 71; the tightening member 722 is threadedly connected with the limiting rod 721 and can be abutted against the rotating disk 71 to prevent the limiting rod 721 from being separated from the open groove. A mounting seat is fixedly installed on the outer side of the support arm 6, and the limiting rod 721 is hingedly arranged on the mounting seat, and the end of the limiting rod 721 away from the mounting seat is a screw, and the limiting rod 721 slides with the inner wall of the open groove. When the support arm 6 moves to the outer side of the chassis 1, the limiting rod 721 is rotated to make the limiting rod 721 inside the open groove, and the limiting rod 721 is fixed to the rotating disk 71 by the tightening member 722, so that the rotating disk 71 can be limited on the support arm 6. The tightening member 722 is a nut. When the limiting rod 721 rotates to the inside of the open groove, the tightening member 722 is installed on the limiting rod 721 and abuts against the side of the rotating disk 71, thereby fixing the limiting rod 721 on the rotating disk 71.

[0037] Preferably, in this embodiment, the length direction of the opening slot is arranged along the radial direction of the rotating disk 71 .

[0038] In some embodiments, the chassis 1 may be Figure 2 See the structure shown. Figure 2 The chassis 1 is also fixedly mounted with a limit plate 8, and a clearance groove for accommodating the limit rod 721 is provided on the limit plate 8. The limit plate 8 is arranged perpendicular to the sliding direction of the support arm 6, and a clearance groove is also provided on the limit plate 8. When the support arm 6 is retracted to the chassis, the limit rod 721 can be reversed to make the limit rod 721 slide into the clearance groove on the limit plate 8, and then the limit rod 721 is fixed to the limit plate 8 by a tightening member 722, so that the support arm 6 can be stored on the chassis 1. When the support arm 6 is in the storage state, the stability of the position of the support arm 6 on the chassis 1 is ensured.

[0039] In some embodiments, the support arm 6 may be configured as follows: Figure 4 See the structure shown. Figure 4 A positioning pin 9 is also slidably provided on the support arm 6. When the front support leg 7 rotates to a vertical state and is located above the support arm 6, the positioning pin 9 can slide into the inside of the open slot. The positioning pin 9 is arranged in parallel with the support arm 6, and the sliding direction of the positioning pin 9 is arranged along the length direction of the support arm 6. When the front support leg 7 rotates to the top of the support arm 6 with the rotating disk 71, and the support leg is arranged in the vertical direction, the open slot on the rotating disk 71 is located at the positioning pin 9. And by moving the positioning pin 9, it can slide into the inside of the open slot. Then the position of the rotating disk 71 is limited.

[0040] Specifically, in this embodiment, the cross section of the support arm 6 is a square structure. The positioning pin 9 and the limiting rod 721 are located on two opposite side walls of the support arm 6, so that when the rotating disk 71 rotates 180 degrees, the opening slot on the rotating disk 71 can switch between the limiting rod 721 and the positioning pin 9.

[0041] In some embodiments, the support arm 6 may be configured as follows: Figure 4 See the structure shown. Figure 4 , a mounting sleeve 91 is fixedly mounted on the support arm 6, a positioning pin 9 is slidably arranged inside the mounting sleeve 91, a blocking rod 92 is fixedly mounted on the positioning pin 9, the blocking rod 92 and the positioning pin 9 are arranged perpendicular to each other, and a limiting groove for limiting the blocking rod 92 to move along the axis direction of the positioning pin 9 is arranged on the side wall of the mounting sleeve 91. A mounting sleeve 91 is fixedly mounted on the outer side of the support arm 6, a positioning pin 9 is slidably arranged inside the mounting sleeve 91, a blocking rod 92 is fixedly mounted on the outer side of the positioning pin 9, and a limiting groove for accommodating the blocking rod 92 is arranged on the side wall of the mounting sleeve 91, and the length direction of the limiting groove is arranged along the circumference of the mounting sleeve 91. A connecting groove is also arranged between the limiting groove and the end of the mounting sleeve 91. When the positioning pin 9 moves inside the mounting sleeve 91, the blocking rod 92 can slide into the limiting groove through the connecting groove. And the blocking rod 92 can be limited inside the limiting groove by rotating the positioning pin 9. When the opening groove on the rotating disk 71 rotates to the positioning pin 9, the positioning pin 9 is pushed to slide into the opening groove, and the positioning pin 9 is rotated to limit the blocking rod 92 in the limiting groove, so that the positioning pin 9 can be limited in the installation sleeve 91.

[0042] In some embodiments, the support arm 6 may be configured as follows: Figure 2 , Figure 3 and Figure 4 See also Figure 2 , Figure 3 and Figure 4 , a baffle 10 for abutting against the chassis 1 is fixedly installed on the outer side of the support arm 6, and the positioning pin 9 and the limiting rod 721 are both located on the side of the baffle 10 close to the front leg 7. A mounting hole connected to the support arm 6 is provided in the middle of the baffle 10, and the support arm 6 passes through the baffle 10 and is located inside the mounting hole. The baffle 10 and the support arm 6 are perpendicular to each other, and when the support arm 6 is retracted to the chassis 1, the baffle 10 abuts against the chassis 1 to limit the movement of the support arm 6, and the support arm 6 is limited on the chassis 1 by the limiting rod 721 and the limiting plate 8. The hinged position of the limiting rod 721 and the support arm 6 is located on the side of the baffle 10 close to the front leg 7, so as to prevent the limiting rod 721 or the positioning pin 9 from interfering with the chassis 1. Improve the stability during use.

[0043] Specifically, in this embodiment, a stopper is provided on the baffle plate 10 to prevent the limiting rod 721 from swinging toward the direction close to the limiting plate 8 .

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crawler transport vehicle with flat ground support, characterized in that: include: Chassis (1); A crawler walking mechanism (2) mounted on the chassis (1); A cab (3) mounted on the chassis (1); A carriage (4) is mounted on the chassis (1) and is spaced apart from the cab (3) along the length direction of the chassis (1); a rear support leg (5) for supporting the carriage on the ground is mounted at the bottom of the carriage (4); Support arms (6), the number of which is two, both of which are located between the vehicle body (4) and the cab (3) and mounted on the chassis (1), and the position of the support arms (6) on the chassis (1) is freely adjustable along the width direction of the chassis (1); A front support leg (7) is mounted on the end of the support arm (6); the position of the front support leg (7) on the support arm (6) has a degree of freedom for adjustment along a pitch angle; the front support legs (7) on the two support arms (6) are respectively located on both sides of the chassis (1).

2. The crawler transport vehicle with flat ground support according to claim 1, characterized in that: A rotating disk (71) is rotatably provided at the end of the support arm (6), the axis of the rotating disk (71) is arranged along the length direction of the support arm (6), and the front support leg (7) is mounted on the rotating disk (71).

3. The crawler transport vehicle with flat ground support according to claim 2, characterized in that: A fixing component (72) is also provided between the support arm (6) and the rotating disk (71) for fixing the rotating disk (71) to the support arm (6) when the front support leg (7) is rotated to a vertical state and is located below the support arm (6).

4. The crawler transport vehicle with flat ground support according to claim 3, characterized in that: The fixing assembly (72) comprises: A limiting rod (721) is hingedly arranged on the support arm (6), and an open groove that slidably cooperates with the limiting rod (721) is arranged on the rotating disk (71); The tightening member (722) is threadedly connected to the limiting rod (721) and can be pressed against the rotating disk (71) to prevent the limiting rod (721) from being separated from the opening groove.

5. The crawler transport vehicle with flat ground support according to claim 4, characterized in that: A limit plate (8) is also fixedly mounted on the chassis (1), and a clearance groove for accommodating the limit rod (721) is provided on the limit plate (8).

6. The crawler transporter with flat ground support according to claim 4, characterized in that: A positioning pin (9) is also slidably provided on the support arm (6). When the front support leg (7) is rotated to a vertical state and is located above the support arm (6), the positioning pin (9) can slide into the interior of the open slot.

7. The crawler transporter with flat ground support according to claim 6, characterized in that: A mounting sleeve (91) is fixedly mounted on the support arm (6), the positioning pin (9) is slidably arranged inside the mounting sleeve (91), a blocking rod (92) is fixedly mounted on the positioning pin (9), the blocking rod (92) and the positioning pin (9) are arranged perpendicular to each other, and a limiting groove is arranged on the side wall of the mounting sleeve (91) for limiting the movement of the blocking rod (92) along the axial direction of the positioning pin (9).

8. The crawler transporter with flat ground support according to claim 6, characterized in that: A baffle (10) for abutting against the chassis (1) is fixedly mounted on the outer side of the support arm (6), and the positioning pin (9) and the limiting rod (721) are both located on a side of the baffle (10) close to the front leg (7).

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