Bulldozer thrust wheel forge piece blank

Abstract

The utility model relates to a thrust wheel forge piece blank of a bulldozer, which belongs to the technical field of thrust wheel forge pieces and comprises a wheel body, edge convex blocks are fixed on the edge of the outer wall of the wheel body, a limiting convex ring is fixed on the outer wall of the wheel body between the edge convex blocks, a through hole for mounting a rotating shaft is arranged on the wheel body, and accommodating notches are arranged at two ends of the through hole. A fixing hole is formed in the side wall in the containing notch, an end ring is arranged in the containing notch, a connecting part used for being fixedly connected with the fixing hole is arranged on the side wall of the end ring, an inner side ring groove is formed in the inner wall of the end ring, the connecting part is a fastening bolt or an anchor rod, and the inner wall of the containing notch is an equilateral polygon. The clamping notches are formed in the two sides of the wheel body of the forge piece blank, clamping operation in the forging process can be facilitated for workers, the material reducing holes and the strip-shaped notches are formed in the wheel body and can serve as lubricating oil ways in the wheel body, and single-side circulating oil supply lubrication and double-side circulating oil supply lubrication can be set for flexible use.

Description

Technical Field

[0001] This utility model relates to the field of track roller forging technology, and in particular to a bulldozer track roller forging blank. Background Technology

[0002] Track rollers are a crucial component of a bulldozer's running gear, situated between the tracks and bearing the entire weight of the bulldozer. Therefore, the structural strength and durability of track rollers are extremely important. Furthermore, track rollers need to guide the tracks to prevent them from veering off course or derailing. During operation, track rollers inevitably encounter impacts and vibrations, and they also absorb and cushion these vibrations, protecting the bulldozer's chassis and related components. Bulldozer track rollers are generally manufactured using forging processes, and forgings can effectively meet the requirements for strength and wear resistance.

[0003] For example, Chinese utility model patent application CN201820332392.5 discloses a bulldozer track roller forging blank, which relates to the field of track roller parts. It includes a track roller body with an "H"-shaped structure. An end cap sealing groove is located at the center of the left end of the track roller body, and a through hole is located at the center of the end cap sealing groove. The upper left surface of the track roller body forms a rim, and the right side of the rim connects to the track roller axle. An upward-curving ramp is provided between the track roller axle and the rim. The right side structure of the track roller body is the same as the left side structure. The inner diameter of the through hole is 5-7 mm smaller than the inner diameter of the finished forging, and the outer diameter of the track roller body is 7-9 mm larger than the outer diameter of the finished forging.

[0004] The forging blank in the aforementioned document has a structure similar to the finished product, with a small machining allowance for the inner diameter and a large machining allowance for the outer diameter, which facilitates adjustment during machining and can reduce machining time and improve production efficiency. However, for support rollers, which require long-term operation, it is essential to appropriately reduce friction. Existing lubrication devices are mostly attached to the internal shaft or end cover, which can affect the structural strength of the component. The blank formed by forging process has higher structural strength and can withstand some structural changes. Therefore, this utility model is proposed. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a bulldozer support roller forging blank. The forging blank has clamping notches on both sides of the wheel body, which can facilitate the clamping operation of workers during the forging process. The wheel body is provided with a material reduction hole and a strip notch, which can serve as a lubrication oil passage in the wheel body. In order to facilitate flexible use, it can be set with single-sided circulating oil supply lubrication and double-sided circulating oil supply lubrication, without structural modification to the traditional shaft body.

[0006] The technical solution adopted by this utility model is as follows: it includes a wheel body, an edge protrusion is fixed at the outer edge of the wheel body, a limiting protrusion ring is fixed on the outer wall of the wheel body between the edge protrusions, a through hole for installing a rotating shaft is provided on the wheel body, a receiving notch is provided at both ends of the through hole, a fixing hole is provided on the side wall of the receiving notch, an end ring is provided in the receiving notch, a connecting component is provided on the side wall of the end ring for fixed connection with the fixing hole, and an inner ring groove is provided on the inner wall of the end ring.

[0007] Preferably, in order to facilitate fixing the position of the end ring, the connecting component is a fastening bolt or anchor rod, which can reduce the structural modification of the wheel body and at the same time provide a lubrication oil passage.

[0008] Preferably, in order to keep the end ring and the wheel relatively fixed, the inner wall of the receiving notch is an equilateral polygon, the outer wall of the end ring and the inner wall of the receiving notch are fitted together, and the edge protrusion is provided with a clamping notch.

[0009] Preferably, in order to facilitate lubrication of the shaft to be installed later, the inner wall of the wheel body is provided with a material reduction hole, one end of the wheel body is provided with a through hole, one end of the through hole extends into the material reduction hole, the inner wall of the wheel body is provided with multiple rows of the material reduction holes, and the inner wall of the wheel body is provided with a strip-shaped notch, the strip-shaped notch is located between the material reduction holes.

[0010] Preferably, in order to facilitate the flow of lubricating fluid, a connecting hole is provided on the inner wall of the inner annular groove, one end of which extends to the side wall of the end ring and corresponds to the through hole.

[0011] Preferably, in order to facilitate the circulation of oil circuit, a partition plate is fixed between the inner walls of the inner annular groove, the partition plate is located between the connecting holes, the number of the serial holes is even, and a transmission gap connects a pair of strip-shaped notches.

[0012] Preferably, in order to ensure that all circulating oil passage ports are located on one side, the partition plate is located on only one side of the wheel body.

[0013] The beneficial effects of this utility model are: the wheel body of this forging blank is provided with clamping notches on both sides, which facilitates the clamping operation of workers during the forging process. The material reduction hole and strip notch are provided inside the wheel body, which can serve as the lubrication oil passage inside the wheel body. In order to facilitate flexible use, single-sided circulating oil supply lubrication and double-sided circulating oil supply lubrication can be set. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model.

[0015] Figure 2 This is a schematic diagram of the end ring structure of this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention.

[0017] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0018] Figure 5 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0019] Figure 6 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Wheel body; 101. Edge protrusion; 102. Limiting protrusion; 103. Clamping notch; 104. Material reduction hole; 105. Through hole; 106. Strip notch; 2. End ring; 201. Connecting component; 202. Inner ring groove; 203. Connecting hole; 204. Separator plate; 3. Transfer notch. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figures 1-4 As shown, this embodiment provides a bulldozer track roller forging blank, including a wheel body 1. An edge protrusion 101 is fixed at the outer edge of the wheel body 1. A limiting protrusion ring 102 is fixed on the outer wall of the wheel body 1 between the edge protrusions 101. The wheel body 1 is provided with a through hole for installing a shaft. The two ends of the through hole are provided with receiving notches. A fixing hole is opened on the side wall of the receiving notch. An end ring 2 is provided in the receiving notch. A connecting component 201 for fixed connection with the fixing hole is provided on the side wall of the end ring 2. An inner ring groove 202 is opened on the inner wall of the end ring 2. The connecting component 201 is a fastening bolt or an anchor rod. This can reduce the structural modification of the wheel body 1 and provide a lubrication oil passage, which can facilitate the fixing of the position of the end ring 2. The inner wall of the receiving notch is an equilateral polygon. The outer wall of the end ring 2 and the inner wall of the receiving notch fit together. A clamping notch 103 is opened on the edge protrusion 101, which can fix the position of the end ring 2 and the wheel body 1 relatively.

[0023] The inner wall of the wheel body 1 is provided with a material reduction hole 104, and a through hole 105 is provided at one end of the wheel body 1. One end of the through hole 105 extends into the material reduction hole 104. Multiple rows of material reduction holes 104 are provided on the inner wall of the wheel body 1. A strip-shaped notch 106 is provided on the inner wall of the wheel body 1. The strip-shaped notch 106 is located between the material reduction holes 104, which facilitates the lubrication of the shaft to be installed later. A connecting hole 203 is provided on the inner wall of the inner annular groove 202. One end of the connecting hole 203 extends to the side wall of the end ring 2 and corresponds to the through hole 105, which facilitates the flow of lubricating fluid.

[0024] In this embodiment, the support wheel needs to be assembled by subsequently installing the shaft and cover plate. A lubrication channel communicating with the inner annular groove 202 is provided on the cover. The inner annular groove 202 can also serve as a disassembly aid structure during disassembly. In use, the lubricant enters the through hole 105 through the connecting hole 203, and then lubricates the shaft through the strip notch 106 and the material reduction hole 104. Then the lubricant passes through the inner wall of the wheel body 1 to the other side. Example 2

[0025] like Figure 5 As shown, this embodiment proposes an oil circuit layout structure based on embodiment 1. A partition plate 204 is fixed between the inner walls of the inner annular groove 202. The partition plate 204 is located between the connecting holes 203. The number of through holes 105 is even. A transmission gap 3 is connected between a pair of strip-shaped notches 106, which facilitates the circulation of oil circuit. In this embodiment, the inlet and outlet of the lubricating fluid need to be designed adjacent to each other so that the lubricating fluid circulates when the wheel 1 rotates, which can shorten the lubrication path. Example 3

[0026] like Figure 6 As shown, this embodiment proposes an oil circuit layout structure based on embodiment 2. A partition plate 204 is fixed between the inner walls of the inner annular groove 202. The partition plate 204 is located between the connecting holes 203. The number of through holes 105 is even. The partition plate 204 is only located on one side of the wheel body 1. A transmission gap 3 is connected between a pair of strip-shaped notches 106. This allows the circulating oil circuit ports to be located on one side. In this embodiment, the oil circuit inlet and outlet are located on the same side, which can reduce the setting of corresponding oil supply and circulation components.

[0027] The blank forging has clamping notches 103 on both sides of the wheel body 1, which facilitates the clamping operation of workers during the forging process. The wheel body 1 has a material reduction hole 104 and a strip notch 106 inside, which can serve as a lubrication oil passage inside the wheel body 1. In order to facilitate flexible use, it can be set to provide single-sided circulating oil supply lubrication and double-sided circulating oil supply lubrication.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A bulldozer support roller forging blank, comprising a wheel body (1), wherein an edge protrusion (101) is fixed at the outer edge of the wheel body (1), and a limiting protrusion ring (102) is fixed on the outer wall of the wheel body (1) between the edge protrusions (101), characterized in that: The wheel body (1) is provided with a through hole for installing a rotating shaft. Both ends of the through hole are provided with receiving notches. A fixing hole is provided on the side wall inside the receiving notch. An end ring (2) is provided inside the receiving notch. A connecting component (201) for fixed connection with the fixing hole is provided on the side wall of the end ring (2). An inner ring groove (202) is provided on the inner wall of the end ring (2).

2. The bulldozer track roller forging blank according to claim 1, characterized in that: The connecting component (201) is a fastening bolt or an anchor rod.

3. The bulldozer track roller forging blank according to claim 1, characterized in that: The inner wall of the receiving notch is an equilateral polygon, the outer wall of the end ring (2) is in contact with the inner wall of the receiving notch, and a clamping notch (103) is provided on the edge protrusion (101).

4. The bulldozer track roller forging blank according to claim 1, characterized in that: The inner wall of the wheel body (1) is provided with a material reduction hole (104), and a through hole (105) is provided at one end of the wheel body (1). One end of the through hole (105) extends into the material reduction hole (104). Multiple rows of the material reduction holes (104) are provided on the inner wall of the wheel body (1). A strip-shaped notch (106) is provided on the inner wall of the wheel body (1). The strip-shaped notch (106) is located between the material reduction holes (104).

5. The bulldozer track roller forging blank according to claim 4, characterized in that: A connecting hole (203) is provided on the inner wall of the inner annular groove (202). One end of the connecting hole (203) extends to the side wall of the end ring (2) and corresponds to the through hole (105).

6. The bulldozer track roller forging blank according to claim 5, characterized in that: A partition plate (204) is fixed between the inner walls of the inner annular groove (202). The partition plate (204) is located between the connecting holes (203). The number of the serial holes (105) is even. A transmission gap (3) connects a pair of strip-shaped notches (106).

7. The bulldozer track roller forging blank according to claim 6, characterized in that: The partition plate (204) is located on only one side of the wheel body (1).

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