Novel hinged structure of rear axle and frame of mining dump truck

Abstract

The utility model discloses a novel hinged structure of a rear axle and a frame of a mining dump truck, and relates to the technical field of mining dump trucks. The rear axle assembly comprises a rear axle assembly and a frame cross beam, a spherical groove is formed in the frame cross beam, a lubricating assembly used for injecting lubricating oil into the spherical groove is arranged on the frame cross beam, a ball nose cone assembly is arranged on the rear axle assembly, and the ball nose cone assembly comprises a mounting seat. According to the utility model, the adjusting pad assemblies with different thicknesses are arranged between the frame cross beam and the gland, so that the outer cambered surface of the connecting ball and the inner cambered surface of the spherical groove can be ensured to be tightly attached, and the gland is connected with the frame cross beam through the fastening bolt, so that the connecting ball can be tightly pressed in the spherical groove by utilizing the gland; according to the technical scheme, the hinged structure of the rear axle and the frame is more compact in structure and convenient to disassemble and assemble, in addition, the number of parts of the structure is greatly reduced, high-value parts such as a knuckle bearing, a bearing space ring and a pin shaft are omitted, and the structural cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mining dump trucks, and particularly relates to a novel articulated structure between the rear axle and the frame of a mining dump truck. Background Technique

[0002] A non-road mining dump truck refers to a special load-carrying vehicle used for short-distance transportation to complete the tasks of rock and soil stripping and ore transportation on special roads such as open-pit mines or large-scale civil engineering sites. The rear axle of a mining dump truck generally serves as the driving axle of the whole vehicle, and the rear axle generally consists of a rear axle housing, an electric wheel assembly, a transverse tie rod, driving wheels, etc.

[0003] At present, the connection between the rear axle and the frame of domestic and international mainstream products is all hinged through a nose cone and a spherical plain bearing. This articulated structure is used to transmit the driving force and braking force of the whole machine. The structure is used under harsh working conditions and has a large load. The structure is relatively complex and the cost is relatively high. Therefore, a novel articulated structure between the rear axle and the frame of a mining dump truck is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel articulated structure between the rear axle and the frame of a mining dump truck to solve the problems of the complex and relatively high-cost conventional articulated structure between the rear axle and the frame of the existing mining dump truck.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0006] A novel articulated structure between the rear axle and the frame of a mining dump truck, including a rear axle assembly and a frame cross beam. A spherical groove is opened on the frame cross beam. A lubrication component for injecting lubricating oil into the spherical groove is arranged on the frame cross beam. A ball head nose cone component is arranged on the rear axle assembly. The ball head nose cone component includes a mounting seat. A connecting ball is fixedly installed on one side of the mounting seat close to the frame cross beam. The connecting ball is movably installed inside the spherical groove. A gland is sleeved outside the connecting ball. A plurality of fastening holes evenly distributed around the central axis of the gland are opened on the side wall surface of the gland. Fastening grooves are opened on the frame cross beam at positions corresponding to each fastening hole. A fastening bolt is commonly threadedly connected inside each fastening hole and the adjacent fastening groove. An adjustment pad component is arranged between the frame cross beam and the gland.

[0007] Furthermore, the lubrication component includes a lubricating oil passage. A lubricating oil passage communicating with the inside of the spherical groove is opened on the side wall surface of the frame cross beam. A lubricating oil nozzle is fixedly installed at the input end of the lubricating oil passage.

[0008] Furthermore, the adjustment pad component includes an adjustment pad. An adjustment pad is arranged between the frame cross beam and the gland. Through holes are opened on the side wall surface of the adjustment pad at positions corresponding to each fastening hole. Each fastening bolt passes through the inside of the corresponding through hole.

[0009] Further, a plurality of uniformly distributed fixing holes are formed in the side wall surface of the mounting seat, and a fixing bolt is threadedly connected to each fixing hole, and the fastening end of each fixing bolt is threadedly connected to the inside of the rear axle assembly.

[0010] Further, an arc-shaped ball socket is formed inside the gland, and the inner arc surface of the arc-shaped ball socket is adapted to the arc radian of the connecting ball.

[0011] Further, the inside of the spherical groove is hollow and is adapted to the arc radian of the connecting ball.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Since the connecting ball in the technical solution of the present utility model is of a spherical structure, when the rear axle assembly swings, the rear axle assembly will drive the mounting seat and the connecting ball to swing synchronously, so that the connecting ball rotates inside the spherical groove. At the same time, the lubricating component can inject lubricating oil into the spherical groove, and the lubricating oil is used to lubricate the outer arc surface of the connecting ball and the inner arc surface of the spherical groove to reduce friction. Moreover, an adjusting pad assembly is provided between the frame cross beam and the gland. Different thicknesses of the adjusting pad assembly between the frame cross beam and the gland can ensure that the outer arc surface of the connecting ball and the inner arc surface of the spherical groove are closely fitted. Since the gland is connected to the frame cross beam through fastening bolts, the gland can press the connecting ball into the spherical groove. The articulated structure of the rear axle and the frame proposed by the technical solution has a more compact structure and is convenient for disassembly and assembly. In addition, the number of parts of this structure is greatly reduced, and high-value parts such as spherical plain bearings, bearing spacers, and pin shafts are omitted, and the structural cost is greatly reduced. Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a connection structure diagram of the rear axle assembly and the frame cross beam of the present utility model;

[0016] Figure 3 is a specific schematic diagram of the frame cross beam of the present utility model;

[0017] Figure 4 is a specific schematic diagram of the gland of the present utility model;

[0018] Figure 5 is a specific schematic diagram of the ball head nose cone assembly of the present utility model;

[0019] Figure 6 is a specific schematic diagram of the adjusting pad assembly of the present utility model;

[0020] Reference numerals: 1, rear axle assembly; 2, frame crossbeam; 3, spherical groove; 4, lubrication assembly; 401, lubricating oil passage; 402, lubricating oil nozzle; 5, ball nose cone assembly; 501, mounting seat; 502, connecting ball; 6, gland; 7, fastening hole; 8, fastening groove; 9, fastening bolt; 10, adjusting pad assembly; 1001, adjusting pad; 1002, through hole; 11, fixing hole; 12, fixing bolt; 13, spherical socket with arc surface. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0023] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0025] Such as Figures 1 to 6As shown in the figure, a new articulated structure between the rear axle and the frame of a mine dump truck includes a rear axle assembly 1 and a frame crossbeam 2. A spherical groove 3 is provided on the frame crossbeam 2, and a lubrication component 4 for injecting lubricating oil into the spherical groove 3 is arranged on the frame crossbeam 2. A ball nose cone component 5 is arranged on the rear axle assembly 1. The ball nose cone component 5 includes a mounting seat 501. A connecting ball 502 is fixedly installed on one side of the mounting seat 501 close to the frame crossbeam 2. The connecting ball 502 is movably installed inside the spherical groove 3. A gland 6 is sleeved outside the connecting ball 502. A plurality of fastening holes 7 evenly distributed around the central axis of the gland 6 are provided on the side wall surface of the gland 6. Fastening grooves 8 are provided on the frame crossbeam 2 at positions corresponding to each fastening hole 7. A fastening bolt 9 is commonly threadedly connected inside each fastening hole 7 and the adjacent fastening groove 8. An adjustment pad component 10 is arranged between the frame crossbeam 2 and the gland 6. It should be noted that since the connecting ball 502 has a spherical structure in this technical solution, when the rear axle assembly 1 swings, the rear axle assembly 1 will drive the mounting seat 501 and the connecting ball 502 to swing synchronously, so that the connecting ball 502 rotates inside the spherical groove 3. At the same time, lubricating oil can be injected into the spherical groove 3 through the lubrication component 4. The lubricating oil is used to lubricate the outer arc surface of the connecting ball 502 and the inner arc surface of the spherical groove 3 to reduce friction. And an adjustment pad component 10 is arranged between the frame crossbeam 2 and the gland 6. Different thicknesses of the adjustment pad component 10 between the frame crossbeam 2 and the gland 6 can ensure that the outer arc surface of the connecting ball 502 and the inner arc surface of the spherical groove 3 are closely fitted. Since the gland 6 is connected to the frame crossbeam 2 through the fastening bolt 9, the connecting ball 502 can be pressed tightly inside the spherical groove 3 by the gland 6. The articulated structure between the rear axle and the frame proposed by this technical solution has a more compact structure and is convenient for disassembly and assembly. In addition, the number of parts of this structure is greatly reduced, and high-value parts such as spherical plain bearings, bearing spacers, and pin shafts are omitted, and the structural cost is greatly reduced.

[0026] As Figure 1 shown, the lubrication component 4 includes a lubricating oil passage 401. A lubricating oil passage 401 communicating with the inside of the spherical groove 3 is provided on the side wall surface of the frame crossbeam 2. A lubricating oil nozzle 402 is fixedly installed at the input end of the lubricating oil passage 401. It should be noted that lubricating oil can be injected into the lubricating oil passage 401 through the lubricating oil nozzle 402, and the lubricating oil injected into the lubricating oil passage 401 will enter the spherical groove 3. Lubricating oil can be injected into the spherical groove 3 through the lubrication component 4. The lubricating oil is used to lubricate the outer arc surface of the connecting ball 502 and the inner arc surface of the spherical groove 3 to reduce friction.

[0027] As Figure 1 , Figure 2 , Figure 4 , Figure 6As shown, the adjustment pad assembly 10 includes an adjustment pad 1001. An adjustment pad 1001 is disposed between the frame cross beam 2 and the gland 6. Through holes 1002 are formed in the side wall of the adjustment pad 1001 corresponding to the positions of each fastening hole 7. Each fastening bolt 9 passes through the interior of the corresponding through hole 1002. It should be noted that when each fastening hole 7 and the adjacent fastening groove 8 are both threadedly connected with a fastening bolt 9, since the adjustment pad 1001 is placed between the frame cross beam 2 and the gland 6, each fastening bolt 9 passes through the interior of the corresponding through hole 1002. By setting adjustment pads 1001 with different thicknesses between the frame cross beam 2 and the gland 6, it can ensure that the outer arc surface of the connecting ball 502 is in close fit with the inner arc surface of the spherical groove 3.

[0028] As Figure 1 , Figure 2 , Figure 5 shown, a plurality of uniformly distributed fixing holes 11 are formed in the side wall surface of the mounting seat 501. Each fixing hole 11 is threadedly connected with a fixing bolt 12. The fastening end of each fixing bolt 12 is threadedly connected to the interior of the rear axle assembly 1. It should be noted that the mounting seat 501 can be mounted to the rear axle assembly 1 through the fixing holes 11 and the fixing bolts 12.

[0029] As Figure 1 , Figure 2 , Figure 4 , Figure 5 shown, an arc-shaped ball socket 13 is formed inside the gland 6. The inner arc surface of the arc-shaped ball socket 13 is adapted to the arc radian of the connecting ball 502. It should be noted that the inner arc surface of the arc-shaped ball socket 13 being adapted to the arc radian of the connecting ball 502 can better utilize the gland 6 to press the connecting ball 502 tightly inside the spherical groove 3.

[0030] As Figure 3 , Figure 5 shown, the interior of the spherical groove 3 is hollow and is adapted to the arc radian of the connecting ball 502. It should be noted that this can facilitate the rotation of the connecting ball 502 inside the spherical groove 3.

[0031] In summary:

[0032] Since the connecting ball 502 in the technical solution is spherical in structure, when the rear axle assembly 1 swings, the rear axle assembly 1 will drive the mounting seat 501 and the connecting ball 502 to swing synchronously, so that the connecting ball 502 rotates inside the spherical groove 3. At the same time, the lubricating component 4 can inject lubricating oil into the spherical groove 3, and the lubricating oil is used to lubricate the outer arc surface of the connecting ball 502 and the inner arc surface of the spherical groove 3 to reduce friction. Moreover, an adjusting pad assembly 10 is provided between the frame cross beam 2 and the gland 6. Different thicknesses of the adjusting pad assembly 10 provided between the frame cross beam 2 and the gland 6 can ensure that the outer arc surface of the connecting ball 502 and the inner arc surface of the spherical groove 3 are closely attached. Since the gland 6 is connected to the frame cross beam 2 through the fastening bolt 9, the gland 6 can press the connecting ball 502 tightly inside the spherical groove 3. The articulated structure of the rear axle and the frame proposed by this technical solution is more compact and convenient for disassembly and assembly. In addition, the number of components of this structure is greatly reduced, and high-value components such as spherical plain bearings, bearing spacers, and pin shafts are omitted, and the structural cost is greatly reduced.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the principles described in the specification are only the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel articulated structure between the rear axle and the frame of a mine dump truck, characterized in that, It includes a rear axle assembly (1) and a frame cross beam (2). A spherical groove (3) is formed on the frame cross beam (2). A lubrication assembly (4) for injecting lubricating oil into the inside of the spherical groove (3) is provided on the frame cross beam (2). A ball nose cone assembly (5) is provided on the rear axle assembly (1). The ball nose cone assembly (5) includes a mounting seat (501). A connecting ball (502) is fixedly installed on one side of the mounting seat (501) close to the frame cross beam (2). The connecting ball (502) is movably installed inside the spherical groove (3). A gland (6) is sleeved outside the connecting ball (502). A plurality of fastening holes (7) evenly distributed around the central axis of the gland (6) are formed on the side wall surface of the gland (6). Fastening grooves (8) are formed on the frame cross beam (2) corresponding to the positions of each fastening hole (7). A fastening bolt (9) is commonly threadedly connected inside each fastening hole (7) and the adjacent fastening groove (8). An adjusting pad assembly (10) is provided between the frame cross beam (2) and the gland (6).

2. A novel articulated structure between the rear axle and the frame of a mining dump truck according to claim 1, characterized in that, The lubrication assembly (4) includes a lubricating oil passage (401). A lubricating oil passage (401) communicating with the inside of the spherical groove (3) is formed on the side wall surface of the frame cross beam (2). A lubricating oil nozzle (402) is fixedly installed at the input end of the lubricating oil passage (401).

3. A novel articulated structure between the rear axle and the frame of a mine dump truck according to claim 1, characterized in that, The adjusting pad assembly (10) includes an adjusting pad (1001). An adjusting pad (1001) is provided between the frame cross beam (2) and the gland (6). Through holes (1002) are formed on the side wall surface of the adjusting pad (1001) corresponding to the positions of each fastening hole (7). Each fastening bolt (9) passes through the inside of the corresponding through hole (1002).

4. A novel articulated structure between the rear axle and the frame of a mining dump truck according to claim 1, characterized in that, A plurality of uniformly distributed fixing holes (11) are formed on the side wall surface of the mounting seat (501). A fixing bolt (12) is threadedly connected inside each fixing hole (11). The fastening end of each fixing bolt (12) is threadedly connected to the inside of the rear axle assembly (1).

5. A novel articulated structure between the rear axle and the frame of a mining dump truck according to claim 1, characterized in that, An arc-shaped ball socket (13) is formed inside the gland (6). The inner arc surface of the arc-shaped ball socket (13) is adapted to the arc radian of the connecting ball (502).

6. A novel articulated structure between the rear axle and the frame of a mine dump truck according to claim 1, characterized in that, The inside of the spherical groove (3) is hollow and is adapted to the arc radian of the connecting ball (502).

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