Half shaft assembly for mine flooding bridge bench test

Abstract

The utility model discloses a half shaft assembly for an ore drive bridge bench test, which is characterized by consisting of a half shaft rod and a half shaft disc, one end of the half-shaft rod is a spline connection position, and the other end is a half-shaft disc assembly position; the half shaft disc is provided with a half shaft rod assembling position, a half shaft disc assembling face and a half shaft disc connecting hole. The product structure is divided into two parts, production and manufacturing can be achieved without opening a forging die, the die opening cost is saved, the production cost is reduced, the manufacturing period is short, and requirements of an under-eye bench test bridge are met; the connecting position of the half shaft rod and the half shaft disc is connected through a shaft hole of a hexagonal structure, torque transmission can be achieved inside the half shaft rod and the half shaft disc, the matching length is properly increased in practice, two circumferential weld joints are added for supplementation, and therefore the half shaft rod and the half shaft disc are connected very firmly, and torque transmission is well achieved between the half shaft rod and the half shaft disc.

Description

Technical Field

[0001] The utility model relates to the technical field of mining truck axles, in particular to a half-axle assembly for mining drive axle bench testing. Background Art

[0002] With the development of the mining truck industry, the carrying capacity of mining trucks and axles is constantly increasing, so the main reducer is also developing towards larger size specifications. For mining truck axle research and development, the order of new product development is usually to develop the main reducer assembly first, and then complete the design, trial assembly and bench test of the main reducer assembly, and then recommend it to the OEM and users. After obtaining accurate vehicle status requirements, the bridge housing and half-axle and other parts are designed; when a new main reducer is to be bench tested, there is no half-axle at this time.

[0003] Traditional half shafts, in addition to the shaft diameter, also include spline connection parts and half shaft disc parts. The manufacturing process is all forged as a whole, which is called swinging to be precise, but a set of expensive forging dies must be designed and made to achieve this. For this kind of test half shaft, only two are needed, and making a mold is obviously a waste of money, and it also takes a certain amount of time to make a mold.

[0004] There are also methods that divide the half shaft into two parts, and also separate the half shaft disc separately, but the connection between the two parts is directly matched with a "circular" shaft hole, and then only two circumferential welds are used to connect and fix the two parts. However, the design of the mine drive bridge and the actual transmission torque are very large, and this strong load is all borne by these two welds, so that in actual applications, weld fractures and falling accidents often occur. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a half-axle assembly for mining drive bridge bench testing.

[0006] The technical solution provided by the utility model is: a half-axle assembly for a mine drive bridge bench test, which is special in that it consists of a half-axle shaft rod and a half-axle disk; one end of the half-axle shaft rod is a spline connection position, and the other end is a half-axle disk assembly position; the outer diameter of the spline connection position is the same as the spline inner diameter of the half-axle wheel of the main reducer; the half-axle disk is provided with a half-axle shaft rod assembly position, a half-axle disk assembly surface and a half-axle disk connecting hole; the half-axle shaft rod assembly position and the half-axle disk assembly position are fixed together through the shoulder limit installation of the half-axle shaft rod; the half-axle disk assembly surface is parallel to the outer end face of the wheel hub, the inner and outer diameters of the two circular rings are equal, and they are parallel to each other and pressed against each other; the single hole diameter, the pitch circle diameter and the number of holes of the half-axle disk connecting hole are the same as the single hole diameter, the pitch circle diameter and the number of holes of the assembly hole on the outer end face of the wheel hub.

[0007] Furthermore, the cross-section of the half-shaft disk assembly position is a regular hexagonal structure, and the circumscribed circle of the regular hexagon is the outer diameter of the half-shaft shaft rod; the cross-section of the half-shaft shaft rod assembly position is an inner hexagonal structure, and the size of the inner hexagon is the same as the size of the half-shaft disk assembly position.

[0008] Furthermore, the number of the half-shaft disc connection holes is 12-15 and is evenly distributed along the circumference.

[0009] The beneficial effects of the utility model are:

[0010] 1. The product structure is divided into two parts, and production can be realized without opening a forging mold, saving mold opening costs and reducing production costs. The production cycle is short and it is suitable for the current bench test bridge needs;

[0011] 2. The connection between the half-shaft shaft rod and the half-shaft disc adopts a hexagonal shaft hole connection. This structure allows torque transmission to be achieved internally. In practice, the fitting length is appropriately increased, and finally two circumferential welds are added as a supplement. This makes the connection between the two particularly reliable, allowing the two to achieve good torque transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 Left view of . DETAILED DESCRIPTION

[0014] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 , 2As shown, a half-axle assembly for a mine drive bridge bench test is composed of a half-axle shaft rod 1 and a half-axle disc 2; a spline connection position 11 is processed at one end of the half-axle shaft rod 1, and a half-axle disc assembly position 12 is processed at the other end; the outer diameter of the spline connection position 11 is processed to be the same as the spline inner diameter of the main reducer half-axle wheel; the cross section of the half-axle disc assembly position 12 is processed into a regular hexagonal structure, and the circumscribed circle of the regular hexagon is the outer diameter of the half-axle shaft rod 1; the half-axle disc 2 is processed with a half-axle shaft rod assembly position 21, a half-axle disc assembly surface 22 and a half-axle disc connection holes 23, wherein the number of the half-axle disc connection holes 23 is 12-15 and is evenly distributed along the circumference; The cross-section of the shaft assembly position 21 is machined into an internal hexagonal structure, and the size of the internal hexagon is the same as the size of the half-shaft disk assembly position 12. The two are fixed together through the shoulder limit installation of the half-shaft shaft 1, and then the two are circumferentially welded along the matching contact positions at both ends; the half-shaft disk assembly surface 22 is machined to be parallel to the outer end face of the hub, and the inner and outer diameters of the two circular rings are equal, and they are parallel to each other and pressed against each other; the single hole diameter, the pitch circle diameter and the number of holes of the half-shaft disk connecting hole 23 are machined to be the same as the single hole diameter, the pitch circle diameter and the number of holes of the assembly hole on the outer end face of the hub.

[0016] The utility model is a half-axle assembly for testing a mining drive bridge bench. When working, the half-axle assembly is assembled to the test bridge assembly, the spline connection position 11 is connected to the half-axle wheel of the main reducer through the spline cooperation, and the half-axle disc 2 is assembled and connected with the wheel hub of the vehicle axle through the half-axle disc assembly surface 22 and the half-axle disc connection hole 23. During the test, the vehicle axle main reducer receives the rotation and torque transmitted from the input end of the test bench, and transmits the rotation and torque to the left and right half-axles through the connection splines between the half-axle and the half-axle wheel, and then the left and right half-axles transmit the rotation and torque to the wheel hubs on both sides, and finally the two wheel hubs transmit the rotation and torque to the output end of the test bench.

[0017] It should be understood that the technical features not elaborated in this specification belong to the prior art. Although the implementation methods of the utility model patent are described above in conjunction with the drawings, the utility model is not limited to the above specific implementation methods, which are only illustrative and not restrictive. Ordinary technicians in this field can make more forms under the enlightenment of the utility model without departing from the scope of protection of the purpose of the utility model and the claims, which are all within the protection scope of the utility model.

Claims

1. A half-axle assembly for a mine drive bridge test bench, characterized in that: The invention comprises a half-shaft shaft rod (1) and a half-shaft disc (2); one end of the half-shaft shaft rod (1) is a spline connection position (11), and the other end is a half-shaft disc assembly position (12); the outer diameter of the spline connection position (11) is the same as the inner diameter of the spline of the half-shaft wheel of the main reducer; the half-shaft disc (2) is provided with a half-shaft shaft rod assembly position (21), a half-shaft disc assembly surface (22) and a half-shaft disc connection hole (23); the half-shaft shaft rod assembly position (21) and the half-shaft disc assembly position (12) are fixed together by the shaft shoulder limit installation of the half-shaft shaft rod (1); the half-shaft disc assembly surface (22) is parallel to the outer end face of the wheel hub, and the inner and outer diameters of the two circular rings are equal, and they are parallel to each other and pressed against each other; the single hole diameter, the pitch circle diameter and the number of holes of the half-shaft disc connection hole (23) are the same as the single hole diameter, the pitch circle diameter and the number of holes of the assembly hole on the outer end face of the wheel hub.

2. The half-axle assembly for a mine drive bridge bench test according to claim 1 is characterized in that: The cross section of the half-shaft disk assembly position (12) is a regular hexagonal structure, and the circumscribed circle of the regular hexagon is the outer diameter of the half-shaft shaft rod (1); the cross section of the half-shaft shaft rod assembly position (21) is an inner hexagonal structure, and the size of the inner hexagon is the same as the size of the half-shaft disk assembly position (12).

3. The half-axle assembly for mining drive bridge bench test according to claim 1 is characterized in that: The number of the half-shaft disc connection holes (23) is 12-15 and they are evenly distributed along the circumference.

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