Anti-fracturing guide wheel of bulldozer

Abstract

The anti-fracturing guide wheel structurally comprises a guide hub shell block, two wheel disc bodies, a gasket block, a shaft pin sleeve cap and an inner shaft pin rod, the guide hub shell block and the wheel disc bodies are of an integrated structure, the axis of the guide hub shell block and the axis of the wheel disc bodies are collinear, and the two wheel disc bodies are installed on the left side and the right side of the guide hub shell block respectively. The two shaft pin sleeve caps are embedded in the left end and the right end of the inner shaft pin rod respectively, the gasket blocks are installed on the left sides of the shaft pin sleeve caps, the gasket blocks and the shaft pin sleeve caps are in interference fit, and the axes of the gasket blocks and the shaft pin sleeve caps are collinear. The quenching curve surface and the heating curve surface are combined with the wheel disc body through casting, welding and manufacturing processes and the like, and the quenching curve surface and the heating curve surface achieve the best wear resistance by adopting a precise processing technology and a special heat treatment process, bear heavy load to the greatest extent and prevent fragmentation.

Description

Technical Field

[0001] The utility model relates to a compression-fracture resistant guide wheel of a bulldozer, belonging to the field of bulldozer parts. Background Art

[0002] A bulldozer is an engineering vehicle with a large metal bulldozer blade installed in the front. When in use, the bulldozer blade is lowered to shovel and push mud, sand, and rocks forward. The position and angle of the bulldozer blade can be adjusted. The bulldozer can complete the work of digging, transporting, and unloading soil independently. It has the characteristics of flexible operation, convenient rotation, small required working surface, and fast driving speed. It is mainly suitable for shallow excavation and short transportation of Class I to III soils, such as site cleaning or leveling, excavation of shallow foundation pits and backfilling, and construction of shallow roadbeds. There are many parts in a bulldozer, one of which is a very common and important part, which is the guide wheel. The shortcomings of the current technology that need to be optimized are:

[0003] The bulldozer's own weight and the pressure of the material being pushed horizontally can easily affect the working quality of the guide wheel, causing the guide wheel to be damaged when it reaches its limit value of fracturing. This will lead to a delay in the bulldozer's working process and a surge in the frequency of adjustments, which will also consume a lot of time and energy in testing the guide wheel's product quality pass rate. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a fracturing resistant guide wheel for a bulldozer, so as to solve the problem that the bulldozer's own weight and the pressure of the horizontally pushed materials easily affect the working quality of the guide wheel, causing the guide wheel to be damaged when the limit value of the guide wheel is fractured, resulting in the delay of the repair of the working links of the bulldozer, a surge in the adjustment frequency, and a large consumption of product quality pass rate testing of the guide wheel.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a fracturing resistant guide wheel of a bulldozer, whose structure includes: a guide hub shell block, a wheel disc body, a gasket block, an axle pin sleeve cap, and an inner axle pin rod. The guide hub shell block and the wheel disc body are an integral structure and their axes are in line with each other. The wheel disc body is provided with two and respectively installed on the left and right sides of the guide hub shell block. The axle pin sleeve cap is provided with two and respectively nested in the left and right ends of the inner axle pin rod. The gasket block is installed on the left side of the axle pin sleeve cap. The gasket block and the axle pin sleeve cap adopt an interference fit and their axes are in line with each other. The inner axle pin rod horizontally penetrates the interior of the guide hub shell block and the axis of the wheel disc body and is perpendicular to each other. The guide hub shell block is provided with a quenching curve surface and a heating curve surface. The quenching curve surface is installed on the top of the heating curve surface. The quenching curve surface and the heating curve surface are an integral structure. The quenching curve surface and the wheel disc body are an integral structure and their axes are in line with each other.

[0006] To optimize the above technical solution, further measures are taken:

[0007] As a further improvement of the utility model, the quenching curve surface is a shallow quenching curve end surface composite structure with a convex top end and a trapezoidal structure, which facilitates the formation of a guiding and wear-resistant operating effect on the outer end surface of the hub of the guide wheel after quenching.

[0008] As a further improvement of the utility model, the heating curve surface is a composite structure of the heating curve end surface of the reinforcing rib separated by a rectangular hollow groove in the upper convex arc track, which facilitates the rigid heating of the reinforcing rib to forge a dense metal bond and improves the guiding rotation stability of the guide wheel's rigid load-bearing capacity.

[0009] Beneficial Effects

[0010] The utility model discloses a compression-fracture resistant guide wheel of a bulldozer. Workers form a guide hub shell block and a wheel disc body by forging and casting, and after a built-in inner shaft pin rod is synchronously formed by a mold, a shaft end frame is formed by putting on a gasket block and a shaft pin sleeve cap to achieve an operation effect of adapting the shaft end frame, so that a quenching curve surface and a heating curve surface can obtain a process operation effect of quenching and heating to strengthen the metal hardness before mold opening, thereby improving the overall compression-fracture resistant effect of the guide wheel.

[0011] The advantages that can be achieved after the operation of the utility model are:

[0012] The guide hub shell block is matched with the wheel body, and the wheel body is combined through the quenching curve surface and the heating curve surface with casting and welding manufacturing processes. Precision processing technology and special heat treatment technology are used to make the quenching curve surface and the heating curve surface achieve the best wear resistance, withstand heavy loads and prevent fragmentation to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will be described in detail with reference to the drawings in the description of the embodiment, so that other features, purposes and advantages of the utility model will become more obvious:

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the anti-fracturing guide wheel of a bulldozer according to the utility model.

[0015] Figure 2 It is a detailed schematic diagram of the inner cross-section stereoscopic structure of the guide hub shell block and the inner shaft pin rod of the utility model.

[0016] Figure 3 It is a detailed three-dimensional enlarged structural schematic diagram of the inner cross-section of the guide hub shell block of the utility model.

[0017] Figure 4 It is a detailed cross-sectional structural diagram of the guide hub shell block of the utility model.

[0018] Explanation of the reference numerals: guide hub shell block -1, wheel disc body -2, gasket block -3, shaft pin sleeve cap -4, inner shaft pin rod -5, quenching curve surface -11, heating curve surface -12. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] Embodiment 1:

[0021] See also Figure 1-Figure 4 The utility model provides a fracturing resistant guide wheel of a bulldozer, and its structure includes: a guide hub shell block 1, a wheel disc body 2, a gasket block 3, an axle pin sleeve cap 4, and an inner axle pin rod 5. The guide hub shell block 1 and the wheel disc body 2 are an integral structure and their axes are in line with each other. The wheel disc body 2 is provided with two and respectively installed on the left and right sides of the guide hub shell block 1. The axle pin sleeve cap 4 is provided with two and respectively nested in the left and right ends of the inner axle pin rod 5. The gasket block 3 is installed on the left side of the axle pin sleeve cap 4. The gasket block 3 and the axle pin sleeve cap 4 adopt an interference fit and their axes are in line with each other. The inner axle pin rod 5 horizontally penetrates the inside of the axis of the guide hub shell block 1 and the wheel disc body 2 and is perpendicular to each other. The guide hub shell block 1 is provided with There are a quenching curve surface 11 and a heating curve surface 12. The quenching curve surface 11 is installed on the top of the heating curve surface 12. The quenching curve surface 11 and the heating curve surface 12 are an integral structure. The quenching curve surface 11 and the wheel disc body 2 are an integral structure and the axes are colinear. The quenching curve surface 11 is a shallow quenching curve end surface composite structure with a convex top end and a trapezoidal structure, which is convenient for forming a guiding and wear-resistant operating effect on the outer end surface of the hub of the guide wheel after quenching. The heating curve surface 12 is a reinforcing rib heating curve end surface composite structure with a rectangular hollow groove in the upper convex arc track, which is convenient for the rigidity of the reinforcing rib to be heated and forged into a dense metal bond, thereby improving the rigidity of the guide wheel The guide rotation stability of the load-bearing load.

[0022] Workflow: The staff guides the hub shell block 1 and the wheel disc body 2 to be formed by forging and casting, and the built-in inner shaft pin rod 5 is formed by the synchronous mold. Then, the gasket block 3 and the shaft pin sleeve cap 4 are put on to form the shaft end frame adapter operation effect, so that the quenching curve surface 11 and the heating curve surface 12 can obtain the quenching and heating strengthening metal hardness process operation effect before mold opening, thereby improving the overall guide wheel anti-fracture effect.

[0023] The utility model achieves the coordination of the guide hub shell block 1 and the wheel disc body 2 by combining the above-mentioned components with each other, and combines the wheel disc body 2 by casting and welding manufacturing processes such as the quenching curved surface 11 and the heating curved surface 12. The quenching curved surface 11 and the heating curved surface 12 are made by precise processing technology and special heat treatment process to achieve the best wear resistance, withstand heavy loads and prevent fragmentation to the greatest extent, so as to solve the problem that the dead weight of the bulldozer and the pressure of the horizontally pushed materials easily affect the working quality of the guide wheel, causing the guide wheel to be damaged when the limit value of the guide wheel is fractured, resulting in the delay and overhaul of the working links of the bulldozer, a surge in the adjustment frequency, and a large consumption of product quality pass rate detection of the guide wheel.

[0024] The specific embodiments described herein are merely examples of the present invention. A person skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the scope of the present invention or exceed the scope defined in the appended claims.

Claims

1. A fracturing-resistant guide wheel of a bulldozer, the structure of which comprises: The guide hub shell block (1), the wheel disc body (2), the gasket block (3), the shaft pin sleeve cap (4), and the inner shaft pin rod (5) are characterized in that: The guide hub shell block (1) and the roulette body (2) are an integral structure. The roulette body (2) is provided with two and is respectively installed on the left and right sides of the guide hub shell block (1). The shaft pin sleeve cap (4) is provided with two and is respectively embedded in the left and right ends of the inner shaft pin rod (5). The gasket block (3) is installed on the left side of the shaft pin sleeve cap (4). The gasket block (3) cooperates with the shaft pin sleeve cap (4). The inner shaft pin rod (5) horizontally penetrates the inside of the axis of the guide hub shell block (1) and the roulette body (2). The guide hub shell block (1) is provided with a quenching curved surface (11) and a heating curved surface (12); The quenching curved surface (11) is installed on the top of the heating curved surface (12); the quenching curved surface (11) and the heating curved surface (12) are an integral structure; the quenching curved surface (11) and the wheel disc body (2) are an integral structure.

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