A wheel rim protection device and wheel loader thereof

Abstract

The present invention discloses a wheel rim protection device and a wheel loader in the field of engineering machinery technology, aiming to solve the problems of grain entering into the wheel rim of the loader in the prior art. The device comprises an inner protection component; the inner protection component comprises a bracket, a movable baffle and a cotter pin; the bracket comprises a fixed plate, a bent rod and a limit plate welded together; a first assembly hole is provided on the fixed plate; the bent rod comprises a first section and a second section connected by a circular arc transition; the fixed plate is welded on the first section, and during welding, the angle between the welding surface of the fixed plate and the second section is less than 70°; the limit plate is welded on the second section; the second section passes through the round tube on the movable baffle, and the movable baffle is limited by the limit plate; the cotter pin passes through the pin hole at the tail end of the second section for fixing; the present invention is applicable to loaders and can effectively remove grain from the wheel rim.

Description

Technical Field

[0001] The invention relates to a wheel rim protection device and a wheel loader thereof, belonging to the technical field of engineering machinery. Background Art

[0002] At present, loaders have been widely used in the fields of grain processing and grain storage. When used in grain working conditions, loaders are often needed for grain stacking operations. When the loader moves forward, the wheels of the loader will enter the grain pile, and the grain will enter the wheel rims; when the loader moves backward from the grain pile, the grain in the wheel rims will be taken out, which not only expands the area occupied by the grain, but also causes certain grain losses due to tire rolling, causing certain troubles to users; in addition, the grain accumulated in the loader wheel rims for a long time also has certain adverse effects on the loader wheel rims, such as causing the wheel rims to heat up or turn black. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a rim protection device and a wheel loader thereof. The loader equipped with an inner protection component can automatically scrape grain out from the inside of the rim in a timely manner to avoid grain waste, and can also clean the rim.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] On the one hand, the present invention provides a rim protection device, including an inner protection component; the inner protection component includes a bracket, a movable baffle and a cotter pin; the bracket includes a fixed plate, a bent rod and a limit plate welded together; a first assembly hole is opened on the fixed plate; the bent rod includes a first section and a second section connected by a circular arc transition; the fixed plate is welded to the first section, and during welding, the angle between the welding surface of the fixed plate and the second section is less than 70°; the limit plate is welded to the second section; the second section passes through the round tube on the movable baffle, and the movable baffle is limited by the limit plate; the cotter pin passes through the pin hole at the tail end of the second section for fixing.

[0006] Furthermore, a blocking piece is provided between the pin hole and the round tube.

[0007] Furthermore, it also includes an external protection component; the external protection component includes a disc-shaped guard plate and a sealing strip, and the sealing strip is sleeved on the outer edge of the disc-shaped guard plate; a second assembly hole is opened on the bottom of the disc-shaped guard plate.

[0008] Furthermore, the sealing strip is made of EPDM rubber.

[0009] Furthermore, the disc-shaped guard plate is made by stamping or welding.

[0010] On the other hand, the present invention provides a wheel loader, comprising a driving axle, a rim and the above-mentioned rim protection device; the wheel edge of the driving axle is sleeved in the rim; the brake discs at both ends of the driving axle are connected to the inner side of the wheel edge; a fixing seat is welded on the driving axle inside the brake disc;

[0011] The inner protection assembly is arranged on the inner side of the rim; during assembly, the fixing plate is fixed to the fixing seat by the first bolt passing through the first assembly hole, and the second section extends into the rim;

[0012] The outer protection component is arranged on the outer side of the wheel rim; during assembly, the disc-shaped guard plate is fixed to the end face of the wheel edge by a second bolt passing through the second assembly hole; the sealing strip closes the gap between the disc-shaped guard plate and the wheel rim.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a rim protection device, the overall structure of the inner protection component is simple, the manufacturing cost is low and it is easy to disassemble. During assembly, it is only necessary to fix the fixed plate in the inner protection component to the fixed seat on the drive axle by the first bolt, and the second section connected to the movable baffle extends into the rim; when the tire moves forward and rotates in the grain pile, only the movable baffle on the second section extending between the brake disc and the rim rotates successively with the movement of the grain in the rim, and will not hinder the rotation of the wheel; because the angle of the welding surface of the second section connected to the movable baffle and the fixed plate is set to be less than 70 degrees, when the tire moves backward, the movable baffle can scrape the grain in the rim outward under the action of the limit plate, without expanding the area occupied by the grain, avoiding a certain amount of grain loss due to the crushing of the tire, and can achieve the cleaning of the rim.

[0015] The present application also provides an outer protection component with a simple overall structure and low manufacturing cost; the assembly and disassembly method is simple, and during assembly, it is only necessary to pass the second bolt through the second assembly hole and fix it on the end face of the wheel edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the inner protection component;

[0017] Figure 2 for Figure 1 Bottom view of

[0018] Figure 3 for Figure 1 Exploded diagram of

[0019] Figure 4 for Figure 3 Schematic diagram of some structures in ;

[0020] Figure 5 is a schematic diagram of the structure of the outer protection assembly;

[0021] Figure 6 for Figure 1 and Figure 5 Exploded view of the connection to the rim;

[0022] Figure 7 This is a schematic diagram of the inner protection component installed on the wheel when not in use;

[0023] Figure 8 This is a diagram of the inner protection component in the wheel forward state;

[0024] In the figure: 1. drive axle; 2. wheel rim; 3. inner protection assembly; 4. outer protection assembly; 5. wheel edge;

[0025] 11. brake disc; 12. fixing seat; 31. bracket; 32. movable baffle; 33. baffle; 34. cotter pin; 35. first bolt; 36. first assembly hole; 37. pin hole; 41. disc guard plate; 42. sealing strip; 43. second bolt; 44. second assembly hole;

[0026] 311, bent rod; 312, fixed plate; 313, limit plate; 411, bottom plate; 412, hollow frustum-shaped connecting piece; 413, outer ring. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Embodiment 1

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a rim 2 protection device, which includes an inner protection component 3 for cleaning food from entering and exiting the rim 2. The inner protection component 3 includes a bracket 31, a movable baffle 32 and a cotter pin 34. Two round tubes are welded on the movable baffle 32. The bracket 31 is welded by a fixed plate 312, a bent rod 311 and a limit rod, and the fixed plate 312 is provided with two first assembly holes 36.

[0031] Specifically, the bent rod 311 includes a first section and a second section, and the first section and the second section are connected by an arc transition section. The fixed plate 312 and the first section of the bent plate are welded. During welding, the angle between the welding surface of the fixed plate 312 and the second section is set to be less than 70°, which can ensure that the grain in the rim 2 is effectively cleaned out. A limiting plate 313 is welded on the second section, and the second section passes through the two round tubes on the movable baffle 32, and the position of the movable baffle 32 is limited by the limiting plate 313. A pin hole 37 is opened at the tail end of the second section that passes through the round tube, and the cotter pin 34 is inserted into the pin hole 37 to fix the movable baffle 32 on the second section of the bent plate.

[0032] The inner protection component 3 can effectively control the production cost due to its simple structure and assembly method.

[0033] The fixed plate 312 welded at the first section of the inner protection component 3 is used for fixing, and the movable baffle 32 movably connected to the second section plays the role of cleaning grain. The installation method is simple and easy to operate, and can effectively clean out the grain in the rim 2.

[0034] Preferably, when assembling the inner protection assembly 3, before inserting the split pin 34, the baffle 33 is inserted into the second section and close to the round tube at the tail end of the second section, and then the split pin 34 is inserted into the pin hole 37. This ensures that the movable baffle 32 can move freely and avoids the movable baffle 32 being stuck due to improper assembly of the split pin 34. Embodiment 2

[0035] See also Figure 5As shown, this embodiment provides a rim 2 protection device, and the rim 2 protection device can also be provided with an outer protection component 4 for cleaning food entering and exiting the rim 2. The outer protection component 4 includes a disc-shaped guard plate 41 and a sealing strip 42.

[0036] Specifically, the disc-shaped guard plate 41 is composed of three parts, namely a bottom plate 411, a hollow truncated cone-shaped connecting piece 412 and an outer ring 413. A plurality of second assembly holes 44 are provided on the bottom plate 411. The bottom plate 411 is sealed at one end of the hollow truncated cone-shaped connecting piece, and the outer ring 413 is arranged at the other end of the hollow truncated cone-shaped connecting piece. The sealing strip 42 is sleeved on the outer edge of the outer ring 413 to ensure the sealing between the outer ring 413 and the rim 2. The sealing strip 42 is a foamed EPDM rubber sealing strip with a metal skeleton. Since the disc-shaped guard plate 41 can be formed as a whole by a stamping process or by a butt welding method, it is simple to manufacture, uses less materials, and can save costs well. Embodiment 3

[0037] See also Figures 6 to 8 , as shown, this embodiment provides a wheel loader, which includes a drive axle 1, wheel edges 5 and rims 2 at both ends of the drive axle 1, and the inner protection component 3 in the above-mentioned embodiment 1 and the outer protection component 4 in the embodiment 2. The wheel edges 5 at both ends of the drive axle 1 are set in the rim 2 for fixing. The brake discs 11 are fixedly connected to the inner sides of the wheel edges 5 respectively. A fixing seat 12 is welded on the axle housing of the drive axle 1 inside the two brake discs 11.

[0038] Combination Figure 6 , Figure 7 and Figure 8 As shown, the inner protection assembly 3 is assembled on the inner side of the rim 2. During installation, the first bolt 35 passes through the first assembly hole 36 on the fixing plate 312 and is fixed on the fixing seat 12. The second section of the bent rod 311 and the movable baffle 32 connected to the second section extend into the rim 2. Figure 7 As shown, when the tire of the loader enters the grain pile and moves forward, the grain will enter the bottom of the inner side of the rim 2. At this time, the movable baffle 32 of the inner protection component 3 can rotate backward with the movement of the grain, and will not prevent the movement of the grain inside the rim 2; when the loader retreats from the grain pile, because the welding surface of the fixed plate 312 is welded with the second section at an angle less than 70 degrees, the movable baffle 32 extends into the rim 2 and is set at a certain angle with the axle, which is greater than the self-locking angle of the grain. At this time, the movable baffle 32 of the inner protection component 3 will scrape the grain out from the inner side of the rim 2 in time under the action of the limit plate 313, and will not expand the area occupied by the grain, thus avoiding a certain amount of grain loss caused by the rolling of the tire, and also reducing the tedious work of manually cleaning the rim 2.

[0039] The outer protection assembly 4 is assembled on the outer side of the rim 2. During installation, the second bolt 43 passes through the second assembly hole 44 of the disc-shaped guard plate 41 and is fixed on the end face of the wheel edge 5. The outer ring 413 on the disc-shaped guard plate 41 is aligned with the edge of the outer side of the rim 2, and the gap between the outer ring 413 and the edge of the rim 2 is sealed by the sealing strip 42. This prevents grain from entering the rim 2 from the outside and causing grain loss.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rim protection device, characterized in that: It comprises an inner protection component; the inner protection component comprises a bracket, a movable baffle and a cotter pin; the bracket comprises a fixed plate, a bent rod and a limit plate which are welded together; a first assembly hole is provided on the fixed plate; the bent rod comprises a first section and a second section connected by a circular arc transition; the fixed plate is welded on the first section, and during welding, the angle between the welding surface of the fixed plate and the second section is less than 70°; the limit plate is welded on the second section; the second section passes through the round tube on the movable baffle, and the movable baffle is limited by the limit plate; the cotter pin passes through the pin hole at the tail end of the second section for fixing; When the tire moves forward and rotates in the grain pile, the movable baffle extending between the brake disc and the rim rotates successively with the movement of the grain in the rim; the angle of the welding surface between the second section connected to the movable baffle and the fixed plate is set to be less than 70 degrees. When the tire moves backward, the movable baffle can scrape the grain in the rim outward under the action of the limiting plate.

2. A rim protection device according to claim 1, characterized in that: A blocking piece is arranged between the pin hole and the round tube.

3. A rim protection device according to claim 1, characterized in that: It also includes an outer protection component; the outer protection component includes a disc-shaped guard plate and a sealing strip, and the sealing strip is sleeved on the outer edge of the disc-shaped guard plate; a second assembly hole is opened on the bottom of the disc-shaped guard plate.

4. A rim protection device according to claim 3, characterized in that: The sealing strip is made of EPDM rubber.

5. A rim protection device according to claim 3, characterized in that: The disc-shaped guard plate is made by stamping or welding.

6. A wheel loader, characterized in that: The invention comprises a driving axle, a rim and a rim protection device as claimed in any one of claims 1 to 5; the wheel edge of the driving axle is sleeved in the wheel rim; the brake discs at both ends of the driving axle are connected to the inner side of the wheel edge; a fixing seat is welded on the driving axle inside the brake disc; The inner protection assembly is arranged on the inner side of the rim; during assembly, the fixing plate is fixed to the fixing seat by the first bolt passing through the first assembly hole, and the second section extends into the rim; The outer protection component is arranged on the outer side of the wheel rim; during assembly, the disc-shaped guard plate is fixed to the end face of the wheel edge by a second bolt passing through the second assembly hole; the sealing strip closes the gap between the disc-shaped guard plate and the wheel rim.

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