Turnover cab structure of mining dump truck

Abstract

A turnover cab structure of a mining dump truck belongs to the technical field of engineering machinery and comprises a cab and a frame, a turnover frame is arranged between the cab and the frame, the cab is fixedly connected with the turnover frame, a shock absorber is arranged between the cab and the turnover frame, and one end of the turnover frame is hinged to the frame. The other end of the overturning frame is detachably connected with a mechanical lock on the frame through a lock hook, an overturning driving unit is hinged to the side portion of the frame, and the telescopic end of the overturning driving unit is hinged to the bottom of the overturning frame. According to the turnover frame, a common cab structure without a turnover function can achieve the cab turnover function, the development, production and use cost is greatly reduced, adaptive structure adjustment can be conducted on the turnover frame according to the shock absorber installation requirement, the turnover frame can adapt to shock absorbers of various forms, a special shock absorber structure is not needed, the overall application capacity is high, and the turnover frame is convenient to use. And the development and production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a flip cab structure of a mining dump truck. Background Art

[0002] Mining dump trucks are widely used in large mines to transport earth and stone materials. At present, the cabs of mining dump trucks (especially the mid-mounted cab) are mostly installed, that is, the cab and shock absorber are fixed to the frame by bolts. Because the engine, radiator and other power components are arranged under the cab, the maintenance frequency is relatively high. The installed cab cannot be flipped. When the engine or gearbox is overhauled, the cab is usually disassembled first, which greatly increases the maintenance cost.

[0003] In order to reduce maintenance costs, a flip-type cab structure has now appeared (such as publication number CN219544926U). One end of the cab body can be rotatably hinged on the frame, the fixed end of the lifting cylinder is connected to the frame, and the telescopic end of the lifting cylinder is connected to the cab body. The cab is flipped by the telescopic drive of the lifting cylinder, which facilitates maintenance and reduces maintenance labor intensity and maintenance costs.

[0004] However, in the existing flip-type cab structure, the cab is mostly directly connected to the flip cylinder / lifting cylinder, and the structure of the cab needs to be changed so that the cab has a connecting seat, connecting ears and other structures connected to the cylinder. Therefore, it is necessary to re-open the mold to produce a cab with a corresponding structure, which increases the development, production and use costs. In addition, the existing flip-type cab needs to be used with special shock absorbers, and the shock absorbers of the traditional installed (non-flip type) cab can no longer be used, which also increases the production and use costs. Utility Model Content

[0005] In order to solve the technical problem of high development, production and use costs of the existing flip cab structure in the above-mentioned background technology, the utility model provides a flip cab structure for a mining dump truck.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a flipping cab structure for a mining dump truck, comprising: a cab and a frame, a flipping frame is arranged between the cab and the frame, the cab and the flipping frame are fixedly connected and provided with a shock absorber, one end of the flipping frame is hinged to the frame, the other end of the flipping frame is detachably connected to a mechanical lock on the frame through a locking hook, a flipping drive unit is hinged on the side of the frame, the telescopic end of the flipping drive unit is hinged to the bottom of the flipping frame, and no new mold is required for manufacturing, so that an ordinary cab structure without a flipping function can realize a cab flipping function, which greatly reduces the development, production and use costs, and the flipping frame can be adaptively structurally adjusted according to the shock absorber installation requirements, and can be adapted to various forms of shock absorbers, so that the shock absorber is a shock absorber structure used for a traditional installed cab, and no special shock absorber structure is required, the overall applicability is strong, and the development and production costs are further reduced.

[0008] Preferably, a first mounting hole is respectively provided at the four corners of the flip frame, and the first mounting hole is a threaded hole structure. The shock absorber is fixedly connected to the first mounting hole and the bottom of the cab by bolts, respectively, to facilitate disassembly and assembly between the shock absorber and the flip frame. The flip frame can be adaptively structurally adjusted according to the shock absorber installation requirements and can be adapted to various forms of shock absorbers.

[0009] Preferably, at least one first support is fixedly provided at the bottom of the flip frame, the first support is hinged to the telescopic end of the flip drive unit, and the number of the first support and the flip drive unit are the same and correspond one to one.

[0010] Preferably, the two flip drive units are symmetrically arranged on both sides of the frame, and the two flip drive units have the same height, so as to ensure the stability of the flip frame when flipping, so that the flip frame will not tilt.

[0011] Preferably, at least one second support is fixedly provided at one end of the flip frame, and the second support is hinged to the frame via a pin, so as to facilitate the connection between the flip frame and the frame.

[0012] Preferably, the locking hook and the second support are arranged at both ends of the flip frame relative to each other, which can effectively lock the flip frame and prevent the cab from flipping over during non-maintenance working conditions, thereby improving safety in use.

[0013] Preferably, a conical guide pin is fixedly provided at the bottom of the flip frame, and a guide hole cooperating with the guide pin is provided on the frame, thereby ensuring the positioning accuracy of the flip frame when flipping and resetting.

[0014] Preferably, a rubber pad is detachably mounted on the bottom of the flip frame to avoid hard contact between the flip frame and the vehicle frame, thereby further improving the shock absorption capacity of the cab and avoiding collision damage between the flip frame and the vehicle frame.

[0015] Preferably, the flip angle of the cab is greater than 45°, which can meet the demand for convenient maintenance of components under the cab.

[0016] It can be seen from the above technical solutions that the advantages of the utility model are:

[0017] 1. The flip frame serves as a transition between the cab and the frame. There is no need to re-open the mold to manufacture a special cab structure. The ordinary cab structure without the flip function can realize the cab flip function, which greatly reduces the development, production and use costs. In addition, the flip frame can be adaptively adjusted according to the shock absorber installation requirements, and can be adapted to various forms of shock absorbers. There is no need for a special shock absorber structure. The overall applicability is strong, which further reduces the development and production costs.

[0018] 2. Two flip drive units are symmetrically arranged on both sides of the frame, and the heights of the two flip drive units are the same, so as to ensure the stability of the flip frame when flipping, so that the flip frame will not tilt.

[0019] 3. The locking hook and the second support are arranged at the two ends of the flip frame opposite to each other, which can effectively lock the flip frame to prevent the cab from flipping during non-maintenance working conditions, thereby improving the safety of use.

[0020] 4. A rubber pad is detachably installed at the bottom of the flip frame to avoid hard contact between the flip frame and the frame, further improving the shock absorption capacity of the cab and avoiding collision damage between the flip frame and the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of a flip cab structure of a mining dump truck according to one or more embodiments of the utility model;

[0023] Figure 2 It is a schematic structural diagram of a flip frame according to one or more embodiments of the present invention;

[0024] The components represented by the reference numerals in the figure are:

[0025] 1. Cab; 2. Shock absorber; 3. Flip drive unit; 4. Flip frame; 41. First support; 42. Second support; 43. First mounting hole; 44. Lock hook; 45. Guide pin; 46. Second mounting hole; 5. Rubber pad; 6. Frame. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0027] In a typical implementation of the present invention, Figure 1-Figure 2 As shown, a flip cab structure for a mining dump truck is proposed, comprising: a cab 1, a flip assembly and a frame 6. The cab 1 and the frame 6 are connected via the flip assembly, so that the flip assembly is used as a transition structure between the cab 1 and the frame 6. There is no need to change the structure of the cab 1, and an ordinary cab structure without a flip function can realize a cab flip function, which greatly reduces the development, production and use costs.

[0028] Specifically, the flip assembly includes a flip drive unit and a flip frame 4. The flip frame 4 is a frame structure composed of a plurality of connecting rods. The four corners of the flip frame 4 are fixedly connected to the cab 1 through a shock absorber 2 respectively. At this time, the cab 1, the shock absorber 2 and the flip frame 4 as a whole can be regarded as a traditional installed cab structure (that is, the cab 1 is fixedly installed on the frame 6). The structure of the cab 1 remains unchanged (the same as the traditional installed cab structure), and there is no need to re-open the mold for manufacturing. The ordinary cab structure without the flip function can realize the cab flipping function, which greatly reduces the development, production and use costs. The flip frame 4 can be adaptively adjusted according to the installation requirements of the shock absorber 2, and can be adapted to various forms of shock absorbers 2, so that the shock absorber 2 is the shock absorber 2 structure used for the traditional installed cab, such as spring shock absorber, rubber shock absorber, silicone oil composite shock absorber, etc., without the need for a dedicated shock absorber 2 structure, the overall applicability is strong, and the development and production costs are further reduced.

[0029] like Figure 2 As shown, a first mounting hole 43 is respectively provided at the four corners of the flip frame 4. The first mounting hole 43 is a threaded hole structure with an internal thread inside, so that the shock absorber 2 is fixedly connected to the flip frame 4 by bolts, and the other end of the shock absorber 2 is fixedly connected to the bottom of the cab 1 by bolting or the like.

[0030] Along the length direction of the frame 6, one end of the flip frame 4 is hinged to the frame 6, and the other end of the flip frame 4 is detachably connected to the frame 6. The flip drive unit 3 is installed on the side of the frame 6 and is hinged to the flip frame 4, so that the flip drive unit 3 is used to drive the flip frame 4 to flip around the axis, and then drive the cab 1 to flip. The flip angle of the cab 1 is greater than 45° to meet the convenience of maintaining the components below the cab 1.

[0031] Specifically, the flip frame 4 includes a first support 41, which is fixedly installed at the bottom of the flip frame 4 by welding or the like. The first support 41 is on the same side as the flip drive unit 3. The first support 41 is the same number as the flip drive unit 3 and corresponds one to one. The bottom end of the flip drive unit 3 is hinged to the side of the frame 6, and the top telescopic end of the flip drive unit 3 is hinged to the first support 41. In this embodiment, the flip drive unit 3 is a telescopic rod structure; in other implementations, the flip drive unit 3 may also be a hydraulic telescopic cylinder, an electric push rod or other structures, which may be selected according to actual needs, and no excessive restrictions are made here.

[0032] It is understandable that one or two flipping drive units 3 can be provided. When two are provided, they need to be symmetrically arranged on both sides of the frame 6, and the heights of the two flipping drive units 3 must be the same to ensure stability during flipping without tilting.

[0033] At least one second support 42 is fixedly provided at one end of the flip frame 4 hinged to the frame 6 by welding, and the first support 42 is hinged to the frame 6 by a pin, so that the flip frame 4 can flip around the pin on the first support 42; at least one locking hook 44 is fixedly provided at the end of the flip frame 4 opposite to the second support 42, and a mechanical lock is installed at the corresponding position of the frame 6. The mechanical locking of the flip frame 4 and the frame 6 is achieved by the cooperation of the mechanical lock and the locking hook 44, thereby preventing the cab 1 from flipping over, making the flipping of the cab 1 controllable.

[0034] In this embodiment, the second support 42 is installed at the front end of the flip frame 4, and the locking hook 44 is installed at the rear end of the flip frame 4. It can be understood that in other embodiments, the second support 42 can also be set at the rear end of the flip frame 4, and the locking hook 44 is set at the front end of the flip frame 4. The specific setting positions of the two can be determined according to actual design requirements, and no excessive restrictions are made here.

[0035] A guide pin 45 is also fixed on the flip frame 4. The guide pin 45 is fixed at the bottom of the flip frame 4 by welding or the like, and is close to the lock hook 44. The guide pin 45 is a conical structure, and a guide hole cooperating with the guide pin 45 is opened at a corresponding position on the frame 6 to improve the flip positioning accuracy of the flip frame 4.

[0036] A plurality of second mounting holes 46 are also provided on the flip frame 4. The second mounting holes 46 are provided at the bottom of the flip frame 4. The second mounting holes 46 are also threaded hole structures with internal threads. The rubber pads 5 are connected to the second mounting holes 46 by bolts, so that the rubber pads 5 are fixedly arranged at the bottom of the flip frame 4 to avoid hard contact between the flip frame 4 and the frame 6, thereby further improving the shock absorption capacity of the cab 1 and avoiding collision damage between the flip frame 4 and the frame 6.

[0037] The specific working principle is:

[0038] When maintenance is required, the connection between the lock hook 44 and the mechanical lock is released, the flip drive unit 3 is started to extend it, and the flip drive unit 3 is used to push the flip frame 4 to rotate around the pin shaft at the second support 42, thereby driving the cab 1 to flip, so that the flip angle of the cab 1 is greater than 45°, for easy maintenance; when the maintenance is completed, the flip drive unit 3 retracts, and the flip drive unit 3 pulls the flip frame 4 and the cab 1 back as a whole. The flip frame 4 is guided by the guide pin 45 during the falling process. When the flip frame 4 returns to its position, the lock hook 44 is reconnected to the mechanical lock on the frame 6 to lock the flip frame 4.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flip cab structure for a mining dump truck, comprising: A cab (1) and a frame (6), characterized in that a flip frame (4) is provided between the cab (1) and the frame (6), the cab (1) and the flip frame (4) are fixedly connected and provided with a shock absorber (2), one end of the flip frame (4) is hinged to the frame (6), the other end of the flip frame (4) is detachably connected to a mechanical lock on the frame (6) via a lock hook (44), a flip drive unit (3) is hinged to the side of the frame (6), and the telescopic end of the flip drive unit (3) is hinged to the bottom of the flip frame (4).

2. The flip cab structure of a mining dump truck according to claim 1 is characterized in that: A first mounting hole (43) is respectively provided at the four corners of the flip frame (4); the first mounting hole (43) is a threaded hole structure; the shock absorber (2) is respectively fixedly connected to the first mounting hole (43) and the bottom of the cab (1) by bolts.

3. The flip cab structure of a mining dump truck according to claim 1 is characterized in that: At least one first support (41) is fixedly provided at the bottom of the flip frame (4); the first support (41) is hinged to the telescopic end of the flip drive unit (3); the first support (41) and the flip drive unit (3) are the same in number and correspond one to one.

4. The flip cab structure of a mining dump truck according to claim 3 is characterized in that: The two flip drive units (3) are symmetrically arranged on both sides of the vehicle frame (6), and the two flip drive units (3) have the same height.

5. The flip cab structure of a mining dump truck according to claim 1 is characterized in that: At least one second support (42) is fixedly provided at one end of the turnover frame (4), and the second support (42) is hinged to the vehicle frame (6) via a pin shaft.

6. The flip cab structure of a mining dump truck according to claim 5, characterized in that: The locking hook (44) and the second support (42) are arranged opposite to each other at two ends of the turning frame (4).

7. The flip cab structure of a mining dump truck according to claim 6, characterized in that: A conical guide pin (45) is fixedly provided at the bottom of the flip frame (4), and a guide hole matching the guide pin (45) is provided on the vehicle frame (6).

8. The flip cab structure of a mining dump truck according to claim 1 is characterized in that: A rubber pad (5) is detachably mounted on the bottom of the flip frame (4).

9. The flip cab structure of a mining dump truck according to claim 1, characterized in that: The tilting angle of the cab (1) is greater than 45°.

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