Space ring for axially positioning rim of dumper double-tire and dumper double-tire

Abstract

The utility model discloses a space ring for axially positioning rims of double tires of a dumper and the double tires of the dumper, solves the problems of large workload, higher cost and inconvenience in mounting of finish machining of the inner surface of the space ring in the prior art, and has the beneficial effects of reducing the mass of the space ring, reducing the workload of finish machining and facilitating the mounting of the space ring. According to the specific scheme, the space ring for axial positioning of the dumper double-tire rim comprises a space ring body, the space ring body is cylindrical, at least one positioning ring is arranged on the inner surface of the space ring body and arranged in the radial direction of the space ring body, the outer ring of the positioning ring is connected with the space ring body in a welded mode, and the positioning ring is a milling workpiece. The inner diameter of the positioning ring is larger than the outer diameter of a wheel shaft matched with the positioning ring, the thickness of the positioning ring is larger than or equal to that of the space ring body, and the width of the positioning ring is smaller than that of the space ring body.

Description

Technical Field

[0001] The utility model relates to the technical field of mining vehicles, in particular to a spacer for axial positioning of a double-tire rim of a dump truck and a double tire of the dump truck. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Dump trucks are mining equipment that are mainly used to transport various ore materials in open-pit mines. The general load capacity is between 100 tons and 400 tons. Dump trucks use a front-wheel steering and rear-wheel drive power system. The rear wheels are driven by motors to drive the reducer and rim tires to drive the vehicle forward. Due to the large weight and load of the dump truck, the rear wheels are arranged with single-sided double tires. The rim is an important part of the wheel structure and a very important force-bearing component of the electric wheel dump truck. It is responsible for transferring the mass of the entire vehicle to the tire, and in turn, it also bears the pressure from the inside of the tire. The dump truck wheel rim is installed in a block-type manner. In order to adjust the spacing between the inner and outer tires, a spacer is installed between the inner rim and the outer rim. The spacer plays an axial positioning role for the outer rim. By adjusting the width of the spacer, the spacing between the two rims can be changed, and then the spacing between the tires can be changed.

[0004] Normally, the spacer is made of rolled and welded steel plates. Because its inner ring needs to match the outer circle of the wheel axle, the inner ring will be milled after being made into a cylinder to improve the inner ring accuracy and facilitate the installation of the spacer. The inventor found that because the spacer has a set width, the inner surface is larger, and the inner surface is finely processed, resulting in a large processing workload, high fine processing cost, and long processing time; and because the diameter of the dump wheel axle is large, the mass of the spacer is correspondingly large, and the installation of the spacer mainly relies on manual work, which increases the difficulty of installing the spacer and the corresponding spacer production cost is also high. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a spacer for axial positioning of the dual-tire rim of a dump truck, which is convenient for installation of the spacer and helps to control the cost of the spacer.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A spacer for axial positioning of a dual-tire rim of a dump truck comprises a spacer body, which is cylindrical in shape. At least one positioning ring is arranged on the inner surface of the spacer body, and the positioning ring is arranged along the radial direction of the spacer body. The outer ring of the positioning ring is welded to the spacer body. The positioning ring is a milled part, and the inner diameter of the positioning ring is larger than the outer diameter of the wheel axle matched with it. The width of the positioning ring is smaller than the width of the spacer body. The thickness of the positioning ring is greater than or equal to the thickness of the spacer body, and the width of the positioning ring is smaller than the width of the spacer body.

[0008] As described above, a positioning ring is arranged inside the spacer body, and the positioning ring is a milling part so that the inner surface of the positioning ring is finely machined, so that the positioning ring contacts the wheel axle when the spacer is installed, and there is no need for the spacer body to contact the wheel axle. In this way, only the positioning ring needs to be finely machined, and there is no need to fine-machine the entire spacer, thereby effectively controlling the processing cost; and a positioning ring is arranged inside the spacer body, and the width of the positioning ring is smaller than the width of the spacer body, which is correspondingly beneficial to reducing the mass of the spacer, facilitating the installation of the spacer, and further beneficial to controlling the production cost of the spacer.

[0009] As described above, a spacer for axial positioning of the dual-tire rim of a dump truck, considering that both sides of the spacer need to be butted against the rim, at least two positioning rings are provided on the inner surface of the spacer body, and a distance is set between adjacent positioning rings, so that the spacer can be stably set on the outside of the wheel axle.

[0010] As described above, a spacer for axial positioning of a dump truck dual tire rim, taking into account the manufacturing cost and under the premise of ensuring the strength of the spacer, the inner surface of the spacer body is provided with two positioning rings;

[0011] The thickness of the positioning ring is 22mm-28mm.

[0012] As described above, a spacer ring is used for axial positioning of the dual-tire rim of a dump truck, wherein the positioning rings are the first positioning ring and the second positioning ring, and the distance between the first positioning ring and the first end face of the adjacent spacer ring body is greater than or equal to the distance between the second positioning ring and the second end face of the spacer ring body, so that it is convenient for the staff to weld the first positioning ring and the second positioning ring at the end face close to the spacer ring body.

[0013] As described above, in the spacer for axial positioning of the dual-tire rim of a dump truck, the distance between the two positioning rings is greater than the distance between the positioning ring and the end face of the adjacent spacer body.

[0014] As described above, in a spacer ring for axial positioning of a dual-tire rim of a dump truck, the outer diameter of the positioning ring is less than or equal to the inner diameter of the spacer ring body. When the outer diameter of the positioning ring is equal to the inner diameter of the spacer ring body, the connection between the positioning ring and the spacer ring body is ensured to be tight. When the outer diameter of the positioning ring is smaller than the outer diameter of the spacer ring body, the positioning ring is conveniently installed in the spacer ring body.

[0015] As described above, the spacer ring for axial positioning of the dual-tire rim of a dump truck has a width of 1 / 20-1 / 10 of the width of the spacer ring body, which ensures the contact area between the inner ring of the positioning ring and the wheel axle and is also beneficial to controlling the cost of the spacer ring.

[0016] A spacer for axial positioning of a dual-tire rim of a dump truck as described above, wherein the width of the spacer body is 390-420 mm;

[0017] The thickness of the spacer body is 13-18 mm.

[0018] As described above, a spacer ring for axial positioning of the dual-tire rim of a dump truck needs to be installed on the outside of the wheel axle. The inner diameter of the positioning ring is 3mm-10mm larger than the outer diameter of the wheel axle it matches, which facilitates the installation of the spacer ring.

[0019] In the second aspect, the utility model also provides a double tire for a dump truck, comprising a first rim and a second rim, a spacer ring for axial positioning of the double tire rim for the dump truck is arranged between the first rim and the second rim, the spacer ring body is arranged on the outer side of the wheel axle, and the inner top surface of the positioning ring is in contact with the inner top surface of the wheel axle.

[0020] The beneficial effects of the above utility model are as follows:

[0021] 1) In the utility model, a positioning ring is arranged inside the spacer body. The positioning ring is a milling part so that the inner surface of the positioning ring is finely machined. When the spacer is installed, the positioning ring contacts the wheel axle, and there is no need for the spacer body to contact the wheel axle. In this way, only the positioning ring needs to be finely machined, and there is no need to finely machine the entire spacer. In this way, the fine machining cost of the spacer is effectively controlled and the workload of the fine machining of the spacer is reduced. The width of the positioning ring is smaller than the width of the spacer body, which greatly reduces the overall fine machining time of the spacer.

[0022] 2) In the utility model, a positioning ring is provided in the spacer body, and the width of the positioning ring is smaller than the width of the spacer body, which is correspondingly beneficial to reducing the mass of the spacer and facilitating the workers to lift and install the spacer. Moreover, compared with the previous thicker spacers, the positioning ring provided in the spacer body is further beneficial to controlling the manufacturing cost of the spacer.

[0023] 3) The utility model is provided with two positioning rings, and the two adjacent positioning rings are set at a distance, so that the spacer can be stably set on the outside of the wheel axle, and the overall production cost of the spacer can be effectively controlled, and the positioning ring is also conveniently fixed in the spacer body.

[0024] 4) In the present invention, the distance between the locating ring and the end face of the spacer body is smaller than the distance between the locating rings, which facilitates the welding of the locating ring at the end face of the spacer body.

[0025] 5) The utility model provides a double tire for a dump truck, which uses a spacer body with a positioning ring as the spacer, which is convenient for the spacer to be installed on the axle, is beneficial to controlling the processing quality of the spacer, and ensures the axial positioning of the spacer to the first rim and the second rim. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0027] Figure 1 The utility model is a cross-sectional view of a spacer ring for axial positioning of a dual-tire rim of a dump truck according to one or more embodiments of the utility model.

[0028] Figure 2 It is a schematic diagram of a spacer for axial positioning of a dual-tire rim of a dump truck according to one or more embodiments of the utility model.

[0029] Figure 3 It is a schematic structural diagram of a dump truck with double tires without the carcass according to one or more embodiments of the utility model.

[0030] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0031] Wherein: 1. spacer, 2. first rim, 3. axle, 4. second rim, 5. pressure block, 6. nut; 11. spacer body, 12. positioning ring. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations;

[0034] As introduced in the background technology, the prior art has the problem of large spacer mass and high processing cost. In order to solve the above technical problems, the utility model proposes a spacer for axial positioning of the dual tire rim of a dump truck.

[0035] Embodiment 1

[0036] In a typical implementation of the present invention, reference is made to Figure 1 , Figure 2 As shown, a spacer for axial positioning of the rim of a double tire of a dump truck comprises a spacer body 11. The spacer body 11 is cylindrical. At least one positioning ring 12 is arranged on the inner surface of the spacer body 11. The positioning ring 12 is arranged along the radial direction of the spacer body 11. The outer ring of the positioning ring 12 is welded to the spacer body 11. The positioning ring 12 is a milled part (referring to the inner surface of the positioning ring being milled to improve the processing accuracy of the inner surface of the positioning ring). The inner diameter of the positioning ring 12 is larger than the outer diameter of the wheel axle 3 (the wheel axle 3 refers to the wheel axle structure inside the double tire) matched therewith. The width of the positioning ring 12 is smaller than the width of the spacer body. The thickness of the positioning ring 12 is greater than or equal to the thickness of the spacer body 11, that is, the thickness of the spacer body is thinner and the positioning ring is thicker, which ensures the matching of the spacer 1 with the first rim and the second rim, and can effectively reduce the mass of the spacer body 11.

[0037] Considering that both sides of the spacer 1 need to dock with the corresponding rim, at least two positioning rings 12 are provided on the inner surface of the spacer body 11 , and a distance is set between two adjacent positioning rings 12 , so that the spacer can be stably set on the outside of the wheel axle 3 .

[0038] Taking the manufacturing cost into consideration, under the premise of ensuring the strength of the spacer 1, two positioning rings 12 are arranged on the inner surface of the spacer body 11, and the two positioning rings are arranged parallel to each other. The distance between the two positioning rings 12 is greater than the distance between the positioning ring and the end face of the adjacent spacer body, so as to avoid the spacer 1 and the axle 3 from being in an unstable state when they are matched;

[0039] It is easy to understand that the distance between the first positioning ring and the first end face of the adjacent spacer body is greater than or equal to the distance between the second positioning ring and the second end face of the spacer body. In the present embodiment, the positioning ring 12 is the first positioning ring and the second positioning ring, and the first positioning ring and the second positioning ring are symmetrically arranged with respect to the radial center plane of the spacer body; and the distance between the first positioning ring and the radial center plane of the spacer body is greater than the distance between the first positioning ring and the first end face of the adjacent spacer body. Correspondingly, the distance between the second positioning ring and the radial center plane of the spacer body is greater than the distance between the second positioning ring and the second end face of the spacer body. This makes it convenient for the staff to weld the first positioning ring and the second positioning ring at the end face close to the spacer body.

[0040] It is easy to understand that the outer diameter of the positioning ring 12 is less than or equal to the inner diameter of the spacer body 11. When the outer diameter of the positioning ring 12 is equal to the inner diameter of the spacer body 11, the connection between the positioning ring and the spacer body is ensured to be tight. When the outer diameter of the positioning ring 12 is smaller than the outer diameter of the spacer body, it is convenient to install the positioning ring in the spacer body. However, it should be noted that the outer diameter of the positioning ring is 0-1mm smaller than the inner diameter of the spacer inner body, and will not be much smaller than the inner diameter of the spacer body.

[0041] The width of the positioning ring 12 is 1 / 20-1 / 10 of the width of the spacer body 11, which ensures the contact area between the inner ring of the positioning ring and the axle and is also beneficial to controlling the cost of the spacer.

[0042] Specifically, the width of the spacer body 11 is 390-420mm, specifically 400mm; the spacer body is cylindrical, the thickness of the spacer body is 13-18mm, and the inner diameter is 1150-1250mm; in this embodiment, the spacer body is made of 16mm thick steel plate rolled and then welded, and the inner diameter can be 1198mm.

[0043] Considering that the spacer needs to be installed on the outside of the axle, the inner diameter of the locating ring is 3mm-10mm larger than the outer diameter of the axle it matches, which facilitates the installation of the spacer.

[0044] In addition, the thickness of the positioning ring is 22mm-28mm. In this embodiment, the positioning ring 12 is a circular ring formed by cutting a 25mm thick steel plate. The outer diameter of the positioning ring is 1198mm, which matches the inner diameter of the spacer body 11 and is welded into a whole. The inner diameter of the positioning ring is 1148mm (4mm larger than the outer diameter of the axle 3). It is milled after cutting to improve its accuracy.

[0045] The spacer provided in the present embodiment has a positioning ring 12 disposed inside the spacer body 11. The positioning ring 12 is a milling part so that the inner surface of the positioning ring 12 is finely machined, so that the positioning ring contacts the wheel axle during installation, and there is no need for the spacer body to contact the wheel axle. In this way, only the positioning ring needs to be finely machined, and there is no need to fine-machine the entire spacer, thereby effectively controlling the processing cost. In addition, a positioning ring is disposed inside the spacer body, and the width of the positioning ring is smaller than the width of the spacer body, which is correspondingly beneficial to reducing the mass of the spacer, facilitating the installation of the spacer, and further beneficial to controlling the manufacturing cost of the spacer.

[0046] Embodiment 2

[0047] This embodiment provides a dump truck with dual tires. Figure 3As shown, it includes a first rim 2 and a second rim 4, and a spacer for axial positioning of the double-tire rim of a dump truck as described in Example 1 is arranged between the first rim and the second rim 4. The spacer body is arranged on the outside of the axle 3. After the spacer 1 is installed, the inner top surface of the positioning ring 12 contacts the inner top surface of the axle 3 under the action of gravity; the first end surface of the spacer 1 cooperates with one side end surface of the first rim 2, the second end surface of the spacer cooperates with one side end surface of the second rim 4, and the inner ring of the positioning ring 12 cooperates with the outer circle of the axle, so that the inner diameter of the positioning ring on the inner side of the spacer is larger than the outer diameter of the axle that cooperates at the same time.

[0048] It should be noted that the first rim and the second rim are respectively pressed against the ends of the wheel axle by existing pressing blocks 5 and fixed by nuts 6 .

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A spacer for axial positioning of a double-tire rim of a dump truck, characterized in that: It includes a spacer body, which is cylindrical. At least one positioning ring is arranged on the inner surface of the spacer body. The positioning ring is arranged along the radial direction of the spacer body. The outer ring of the positioning ring is welded to the spacer body. The positioning ring is a milling part. The inner diameter of the positioning ring is larger than the outer diameter of the wheel axle matched with it. The thickness of the positioning ring is larger than or equal to the thickness of the spacer body. The width of the positioning ring is smaller than the width of the spacer body.

2. A spacer for axial positioning of a dual-tire rim of a dump truck according to claim 1, characterized in that: At least two positioning rings are arranged on the inner surface of the spacer body, and a distance is set between two adjacent positioning rings.

3. A spacer for axial positioning of a dual-tire rim of a dump truck according to claim 2, characterized in that: The inner surface of the spacer body is provided with two positioning rings; The thickness of the positioning ring is 22mm-28mm.

4. A spacer for axial positioning of a dual-tire rim of a dump truck according to claim 3, characterized in that: The positioning rings are a first positioning ring and a second positioning ring, and the distance between the first positioning ring and the first end face of the adjacent spacer ring body is greater than or equal to the distance between the second positioning ring and the second end face of the spacer ring body.

5. The spacer for axial positioning of the dual tire rim of a dump truck according to claim 3, characterized in that: The distance between the two positioning rings is greater than the distance between the positioning ring and the end surface of the adjacent spacer ring body.

6. A spacer for axial positioning of a dual-tire rim of a dump truck according to claim 1, characterized in that: The outer diameter of the positioning ring is smaller than or equal to the inner diameter of the spacer body.

7. A spacer for axial positioning of a dual-tire rim of a dump truck according to claim 1, characterized in that: The width of the positioning ring is 1 / 20-1 / 10 of the width of the spacer body.

8. The spacer for axial positioning of the dual tire rim of a dump truck according to claim 1, characterized in that: The width of the spacer body is 390-420 mm; The thickness of the spacer body is 13-18 mm.

9. A spacer for axial positioning of a dual-tire rim of a dump truck according to claim 1, characterized in that: The inner diameter of the positioning ring is 3mm-10mm larger than the outer diameter of the wheel axle matched with the positioning ring.

10. A dump truck with dual tires, characterized in that: It comprises a first rim and a second rim, wherein a spacer ring for axial positioning of the dual-tire rim of a dump truck as claimed in any one of claims 1 to 9 is arranged between the first rim and the second rim, the spacer ring body is arranged on the outer side of the wheel axle, and the inner top surface of the positioning ring contacts the inner top surface of the wheel axle.

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