An axle end drive device, an installation method and a mining dump truck

Abstract

The present invention discloses an axle end drive device, an installation method and a mining dump truck, which include a bridge housing, a transition flange and a wheel side speed reducer; the bridge housing, the transition flange and the wheel side speed reducer are connected as a whole, and a half shaft and a spline sleeve are arranged in the bridge housing; the input shaft of the wheel side speed reducer is inserted into one port of the spline sleeve, and the two are in spline fit, and the axial movement of the input shaft is restricted by a first fastener; the large end of the half shaft is inserted into the other port of the spline sleeve, and the two are in spline fit, and the axial movement of the half shaft is restricted by a second fastener; a position adjusting component is arranged at the large end of the half shaft for adjusting the distance between the rear side surface of the large end of the half shaft and the rear flange surface of the spline sleeve, so that the axial movement of the half shaft is within a preset range. The present invention solves the problems of high processing cost, complex maintenance and poor reliability of the traditional integral connected axle and the independent wheel side speed reducer drive device.

Description

Technical Field

[0001] The present invention relates to an axle end drive device and an installation method thereof, belonging to the technical field of mining dump trucks. Background Art

[0002] The axle of a mining dump truck serves as a load-bearing and driving component of the vehicle. The final drive is part of the axle and is used to transmit the driving torque from the transmission system. Due to the special transportation conditions of mining dump trucks, which operate on bumpy, muddy, and rough road conditions for a long time, and even in non-road environments, higher requirements are imposed on the final drive device, which must have a large load-bearing capacity, fatigue resistance, and excellent maintenance convenience. The wheel side reducer and the axle housing of traditional mining dump truck axles are of an integrated connection structure type or an independent wheel side reducer structure type, each having its own drawbacks. Therefore, it is inevitable to develop an axle end drive device suitable for use under harsh conditions.

[0003] The installation and use of the final drive of traditional mining dump truck axles mainly have the following problems:

[0004] For the traditional integrated connection structure type of the wheel side reducer and the axle housing, the half shaft integrates the sun gear, and the half shaft gear of the axle housing differential is inserted through the side of the wheel side reducer. In this structure type, the half shaft has a long dimension. Especially for mining dump trucks, the vehicle is wider and the half shaft is longer, making the processing and manufacturing of the half shaft more difficult. Considering the strength and hardness of the gears and splines, heat treatment is required after processing, with difficult precision control, low efficiency, and high production cost. Secondly, the long-sized half shaft is prone to force and heat deformation, with poor load-bearing capacity and high failure rate. Thirdly, although the cavities of the wheel side reducer and the axle housing are connected, due to the small pores at the joint, the flow of gear oil between the two cavities is slow. During the process of replacing the gear oil, it is necessary to check the liquid level of the wheel side reducer and the liquid level of the axle housing multiple times, and the maintenance is rather cumbersome.

[0005] The independent wheel side reducer structure type belongs to a disconnected axle drive device, which is connected to the axle housing half shaft through a transmission shaft. In this structure type, the transmission shaft has a large swing angle and bears alternating loads for a long time, resulting in a high failure rate of the cross shaft, leading to power interruption and poor reliability. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention discloses an axle end drive device, which solves the problems of high processing cost, complex maintenance, and poor reliability of traditional integrated connected axles and independent wheel side reducer drive devices.

[0007] The present invention is implemented according to the following technical solutions:

[0008] The first aspect of the present invention discloses an axle end drive device, which includes a axle housing, a transition flange and a wheel side speed reducer; the axle housing, the transition flange and the wheel side speed reducer are connected as a whole, and a half shaft and a spline sleeve are arranged in the axle housing; the input shaft of the wheel side speed reducer is inserted into one port of the spline sleeve, and the two are in spline fit, and the axial movement of the input shaft is restricted by a first fastener; the large end of the half shaft is inserted into the other port of the spline sleeve, and the two are in spline fit, and the axial movement of the half shaft is restricted by a second fastener; a position adjusting component is arranged at the large end of the half shaft for adjusting the distance between the rear side surface of the large end of the half shaft and the rear flange surface of the spline sleeve, so that the axial movement of the half shaft is within a preset range.

[0009] In some embodiments, the spline sleeve is a cylindrical structure with internal splines at both ends, one port is connected to the external splines of the input shaft of the wheel side speed reducer, and the other port is connected to the external splines of the large end of the half shaft.

[0010] In some embodiments, the first fastener includes a backing plate and a large nut; a stepped groove is formed inside the cavity of the spline sleeve. After the input shaft of the wheel side speed reducer is inserted into the spline sleeve, the backing plate is sleeved on the input shaft located in the stepped groove, and the large nut is screwed on the input shaft to prevent the backing plate from moving axially.

[0011] In some embodiments, the second fastener includes a limiting plate and bolt II; the limiting plate is sleeved on the shaft rod located at the rear side of the large end of the half shaft, and the limiting plate is fixed to the flange surface of the spline sleeve by a plurality of bolt II, and the large end of the half shaft abuts against the limiting plate to restrict the axial movement of the half shaft.

[0012] In some embodiments, the adjusting component is composed of a first adjusting gasket located between the large end of the half shaft and the limiting plate and a second adjusting gasket located between the flange surface of the spline sleeve and the limiting plate, and the distance between the rear side surface of the large end of the half shaft and the rear flange surface of the spline sleeve is adjusted by increasing or decreasing the first adjusting gasket and the second adjusting gasket.

[0013] In some embodiments, a pulse wheel is sleeved on the shaft rod at the rear side of the large end of the half shaft, and the pulse wheel can rotate together with the half shaft; a speed sensor is installed at a position on the axle housing that is radially opposite to the pulse wheel, and there is a gap between the two, and the speed sensor transmits the rotation speed signal to the whole machine controller in real time.

[0014] In some embodiments, the inner ring of the pulse wheel is a waist-shaped hole, and the mating position of the half shaft is a waist-shaped structure, which plays a tangential limiting role on the pulse wheel, and the two sides of the pulse wheel are limited by snap rings, which play an axial limiting role on the pulse wheel.

[0015] In some embodiments, grooves are formed on both sides of the transition flange for installing a sealing ring, which are respectively fitted with the flange surface of the axle housing and the flange surface of the wheel side reducer; positioning pin holes are formed at symmetrical positions of the transition flange, and the transition flange is connected to the axle housing and the wheel side reducer by installing positioning pins, and then the three are fixed together by bolt Ⅰ.

[0016] In some embodiments, the circular hole in the inner ring of the transition flange is matched with the flange stop of the wheel side reducer and the flange stop of the axle housing, playing a role in radial limit.

[0017] The second aspect of the present invention discloses an installation method of an axle end drive device:

[0018] Install the positioning pin into the positioning hole corresponding to the flange on the end face of the axle housing; after installing the sealing rings on both sides of the transition flange in the corresponding grooves respectively, the whole is inserted into the positioning pin, so that one end face of the transition flange is fitted with the flange on the end face of the axle housing;

[0019] Install the brake joint at the brake oil port on the side of the wheel side reducer; install the spline sleeve on the input shaft of the wheel side reducer through the backing plate and the large nut; install the pulse wheel at the middle position of the half shaft through the snap ring;

[0020] Insert the half shaft into the spline sleeve, so that the front side of the large end of the half shaft is fitted with the end face of the input shaft of the wheel side reducer, measure the distance A between the rear side of the large end of the half shaft and the flange surface of the spline sleeve and adjust the distance through the adjusting component;

[0021] Insert the wheel side reducer, brake joint, spline sleeve, backing plate, large nut, half shaft, pulse wheel, snap ring, adjusting component connected as a whole into the positioning pin, so that the flange end face of the wheel side reducer is fitted with the end face of the transition flange, install the gasket and bolt Ⅰ, and complete the assembly of the axle end drive device.

[0022] In some embodiments, if the value of A is within the range of A±Δa, install the limit plate on the spline sleeve through bolt Ⅱ to complete the installation of the half shaft;

[0023] If the value of A is greater than A+Δa, calculate the correct thickness of the adjusting gasket according to the error value, increase the number of the first adjusting gaskets, so that the value of A is within the range of A±Δa, and then install the limit plate on the spline sleeve through bolt Ⅱ to complete the installation of the half shaft;

[0024] If the value of A is less than A-Δa, calculate the correct thickness of the adjusting gasket according to the error value, increase the number of the second adjusting gaskets, so that the value of A is within the range of A±Δa, and then install the limit plate on the spline sleeve through bolt Ⅱ to complete the installation of the half shaft.

[0025] The third aspect of the present invention discloses a mining dump truck equipped with the above-mentioned axle end drive device.

[0026] Advantages of the present invention:

[0027] The present invention solves the problems of high processing cost, complex maintenance, and poor reliability of traditional integrated connected axles and independent wheel side speed reducers. A terminal drive device and an installation method are provided, with a simple and reliable structure. After assembling the half shaft and the independent wheel side speed reducer, they are integrally installed in the axle housing. The installation and disassembly processes are simple. The axial clearance of the half shaft is adjusted by improving the structure of the adjusting gasket, and the installation and adjustment processes are simple. At the same time, the terminal drive device involved in the present invention can achieve signal feedback, transmit the rotational speed signal to the whole machine controller in real time, combine with the rotational speed sensor of the gearbox output to judge the vehicle skidding situation, and intelligently engage the differential lock, with timely and accurate response, without relying on the operation of personnel, ensuring the power performance and passability of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings described below are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0029] In the drawings:

[0030] Figure 1 is a schematic structural diagram of the axle terminal drive device of the present invention;

[0031] Figure 2 is an exploded view of the structural diagram of the axle terminal drive device of the present invention;

[0032] Figure 3 is Figure 2 a partial enlarged view of I in

[0033] Figure 4 is Figure 2 a partial enlarged view of II in

[0034] Figure 5 is a schematic connection diagram of the wheel side speed reducer, spline sleeve and half shaft of the present invention;

[0035] Figure 6 is Figure 5 a partial enlarged view of III in

[0036] Figure 7 is the main view of the pulse wheel installation of the present invention;

[0037] Figure 8 is the side view of the pulse wheel installation of the present invention.

[0038] Attached drawing reference numerals: 1. axle housing, 2. wheel side speed reducer, 3. backing plate, 4. big nut, 5. brake joint, 6. positioning pin, 7. sealing ring, 8. transition flange, 9. spline sleeve, 10. half shaft, 11. gasket, 12. hexagon bolt I, 13. adjusting gasket I, 14. adjusting gasket II, 15. adjusting gasket III, 16. adjusting gasket IV, 17. limit plate, 18. hexagon bolt II, 19. circlip, 20. pulse wheel, 21. speed sensor.

[0039] It should be noted that these attached drawings and the textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by reference to specific embodiments. Detailed implementation manners

[0040] For the purpose of making the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the attached drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings, and is 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 should not be construed as a limitation to the present invention.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Such as Figure 1 、 Figure 2As shown in the figure, an axle end drive device includes a bridge housing 1, a wheel side speed reducer 2, a half shaft 10, a spline sleeve 9, a transition flange 8, a backing plate 3, a large nut 4, a limit plate 17, a pulse wheel 20, a speed sensor 21, etc. The bridge housing 1, the transition flange 8 and the wheel side speed reducer 2 are connected as a whole. The half shaft 10, the wheel side speed reducer 2, the spline sleeve 9, the backing plate 3, the large nut 4 and the limit plate 17 are connected as a whole. Adjusting gaskets are provided between the large end of the half shaft 10 and the limit plate 17, and between the flange surface of the spline sleeve 9 and the limit plate 17. The pulse wheel 20 is installed on the half shaft 10 through a snap ring 19, and the speed sensor 21 is installed at a position on the bridge housing 1 opposite to the pulse wheel 20.

[0044] Further solution: The bridge housing 1, the transition flange 8 and the wheel side speed reducer 2 are connected as a whole. The specific implementation method is as follows:

[0045] Grooves are opened on both sides of the transition flange 8 for installing the sealing ring 7, which are respectively fitted with the flange surfaces of the bridge housing 1 and the wheel side speed reducer 2. Positioning pin holes are opened at symmetrical positions of the transition flange 8, and positioning pins 6 are embedded during installation. The inner circular hole of the transition flange 8 is matched with the flange stop of the wheel side speed reducer 2 and the flange stop of the bridge housing 1 to play a role in radial positioning. The transition flange 8 is installed on the housing 1 through 2 positioning pins 6. The wheel side speed reducer 2 is inserted into the positioning pins 6 and fitted with the transition flange 8, and then tightened through a gasket 11 and an external hexagon bolt 12.

[0046] Further solution: The half shaft 10, the wheel side speed reducer 2, the spline sleeve 9, the backing plate 3, the large nut 4 and the limit plate 17 are connected as a whole. The specific implementation method is as follows:

[0047] As Figure 5 shown, the spline sleeve 9 is a cylindrical structure with internal splines at both ends. One end is connected to the external splines of the input shaft of the wheel side speed reducer 2, and the other end is connected to the external splines of the large end of the half shaft 10. A stepped groove is opened on the inner side of the cavity for placing the backing plate 3 and the large nut 4. The spline sleeve 9 is inserted into the input shaft of the wheel side speed reducer 2, and the backing plate 3 is installed. The purpose is to increase the contact area and improve the anti-loosening performance. The backing plate 3 and the spline sleeve 9 are fixed to the wheel side speed reducer 2 with the large nut 4. The large end splines of the half shaft 10 are inserted into the spline sleeve 9, and the limit plate 17 is installed on the flange surface of the spline sleeve 9 with an external hexagon bolt 18.

[0048] Further solution: Adjusting gaskets are provided between the large end of the half shaft 10 and the limit plate 17, and between the flange surface of the spline sleeve 9 and the limit plate 17. The specific implementation method is as follows:

[0049] As Figure 3 、 Figure 6As shown in the figure, the large-end end face of the half shaft 10 is fitted to the input shaft end face of the wheel-end speed reducer 2. By measuring the distance between the large end of the half shaft 10 and the flange face of the spline sleeve 9, the axial end play of the half shaft 10 is determined. To make this value meet the design requirements, to avoid impacts and wear caused by excessive axial end play, and to avoid jamming caused by too small a clearance, force deformation, and high-temperature deformation, the clearance adjustment is achieved by adding or reducing shims. When the clearance is less than the standard value, by adding shim three 15 or shim four 16, the axial end play value of the half shaft 10 is within the range of A±Δa; when the clearance is greater than the standard value, by adding shim one 13 or shim two 14, the axial end play value of the half shaft 10 is within the range of A±Δa.

[0050] Further solution: The pulse wheel 20 is installed on the half shaft 10 through a snap ring 19, and the speed sensor 21 is installed at a position on the axle housing 1 opposite to the pulse wheel 20. The specific implementation method is as follows:

[0051] As Figure 4 、 Figure 7 、 Figure 8 shown, the inner ring of the pulse wheel 20 is a kidney-shaped hole, which is embedded in the kidney-shaped structure of the half shaft 10 to play a role in tangential positioning, preventing relative rotation between the pulse wheel 20 and the half shaft 10. The outer ring of the pulse wheel 20 is a speed measurement gear ring. The speed sensor 21 is installed at a position on the axle housing 1 with a certain clearance value from the outer ring of the pulse wheel 20, and transmits the rotational speed signal to the whole machine controller in real time. By combining with the rotational speed sensor of the gearbox output, the vehicle slip situation is judged, and the differential lock is intelligently engaged, with timely and accurate response, without relying on the operation of personnel, ensuring the power performance and passability of the vehicle.

[0052] Continuing to refer to Figure 1 、 Figure 2 shown, an installation method of a vehicle axle end drive device includes the following steps:

[0053] Install 2 positioning pins 6 in the positioning holes corresponding to the end face flange of the housing 1; after installing 2 sealing rings 7 in the corresponding grooves on both sides of the transition flange 8 respectively, the whole is embedded in the positioning pins 6, so that one side end face of the transition flange 8 is fitted to the end face flange of the axle housing 1.

[0054] Install the brake joint 5 at the brake oil port on the side of the wheel-end speed reducer 2; install the spline sleeve 9 on the input shaft of the wheel-end speed reducer 2 through the backing plate 3 and the large nut 4; install the pulse wheel 20 at the middle position of the half shaft 10 through 2 snap rings 19.

[0055] Embed the half shaft 10 into the spline sleeve 9, so that the front side face of the large end of the half shaft 10 is fitted to the input shaft end face of the wheel-end speed reducer 2, and measure the distance A between the rear side face of the large end of the half shaft 10 and the flange face of the spline sleeve 9 as Figure 4 shown.

[0056] If the value of A is within the range of A ± Δa, install the limit plate 17 on the spline sleeve 9 through the second hexagon bolt 18 to complete the installation of the half shaft.

[0057] If the value of A is greater than A + Δa, calculate the correct thickness of the adjustment shim according to the error value, increase the quantity of the first adjustment shim 13 or the second adjustment shim 14 to make the value of A within the range of A ± Δa, and then install the limit plate 17 on the spline sleeve 9 through the second hexagon bolt 18 to complete the installation of the half shaft.

[0058] If the value of A is less than A - Δa, calculate the correct thickness of the adjustment shim according to the error value, increase the quantity of the third adjustment shim 15 or the fourth adjustment shim 16 to make the value of A within the range of A ± Δa, and then install the limit plate 17 on the spline sleeve 9 through the second hexagon bolt 18 to complete the installation of the half shaft.

[0059] Embed the integrated wheel side speed reducer 2, brake joint 5, spline sleeve 9, backing plate 3, large nut 4, half shaft 10, pulse wheel 20, snap ring 19, limit plate 17 and the second hexagon bolt 18 together into the locating pin 6, make the flange end face of the wheel side speed reducer 2 fit with the end face of the transition flange 8, install the shim 11 and the first hexagon bolt 12 to complete the assembly of the axle end drive device.

[0060] As can be seen from the above, the present invention solves the problems of high processing cost, complex maintenance and poor reliability of the traditional integral connected axle and the independent wheel side speed reducer drive device. It provides a terminal drive device and an installation method with simple and reliable structure. After assembling the half shaft and the independent wheel side speed reducer, the whole is installed on the axle housing. The installation and disassembly processes are simple. The axial clearance of the half shaft is adjusted by improving the structure of the adjustment shim, and the installation and adjustment processes are simple. At the same time, the terminal drive device involved in the present invention can realize signal feedback, transmit the rotational speed signal to the whole machine controller in real time, combine with the output rotational speed sensor of the gearbox to judge the vehicle skidding situation, and intelligently engage the differential lock, with timely and accurate response, without relying on the operation of personnel, ensuring the power performance and passability of the vehicle.

[0061] In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, the well-known methods, structures and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0062] In addition, those skilled in the art can understand that although some of the embodiments described herein include some features contained in other embodiments rather than other features, the combination of the features of different embodiments also means being within the protection scope of the present invention and forms different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by this application.

[0063] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above to equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A vehicle axle end drive device, characterized in that: It includes a bridge housing, a transition flange and a wheel side reducer; The bridge housing, the transition flange and the wheel side reducer are connected as a whole. An axle shaft and a spline sleeve are provided in the bridge housing; The input shaft of the wheel side reducer is inserted into one port of the spline sleeve, and the two are in spline fit, and the axial movement of the input shaft is restricted by a first fastener; The large end of the axle shaft is inserted into the other port of the spline sleeve, and the two are in spline fit, and the axial movement of the axle shaft is restricted by a second fastener; A position adjusting component is provided at the large end of the axle shaft for adjusting the distance between the rear side surface of the large end of the axle shaft and the rear flange surface of the spline sleeve, so that the axial movement of the axle shaft is within a preset range; The second fastener includes a limit plate and a bolt II; the limit plate is sleeved on the shaft rod located at the rear side of the large end of the axle shaft, and the limit plate is fixed on the flange surface of the spline sleeve by a plurality of bolt IIs, and the large end of the axle shaft abuts against the limit plate to restrict the axial movement of the axle shaft; The adjusting component is composed of a first adjusting gasket located between the large end of the axle shaft and the limit plate and a second adjusting gasket located between the flange surface of the spline sleeve and the limit plate. The distance between the rear side surface of the large end of the axle shaft and the rear flange surface of the spline sleeve is adjusted by increasing or decreasing the first adjusting gasket and the second adjusting gasket; Insert the axle shaft into the spline sleeve so that the front side surface of the large end of the axle shaft is in contact with the end surface of the input shaft of the wheel side reducer, measure the distance A between the rear side surface of the large end of the axle shaft and the flange surface of the spline sleeve, and adjust the distance through the adjusting component; If the value of A is within the range of A±Δa, install the limit plate on the spline sleeve through bolt II to complete the installation of the axle shaft; If the value of A is greater than A+Δa, calculate the correct thickness of the adjusting gasket according to the error value, increase the number of the first adjusting gaskets so that the value of A is within the range of A±Δa, and then install the limit plate on the spline sleeve through bolt II to complete the installation of the axle shaft; If the value of A is less than A-Δa, calculate the correct thickness of the adjusting gasket according to the error value, increase the number of the second adjusting gaskets so that the value of A is within the range of A±Δa, and then install the limit plate on the spline sleeve through bolt II to complete the installation of the axle shaft.

2. The vehicle axle end drive device according to claim 1, characterized in that: The spline sleeve is a cylindrical structure with internal splines at both ends. One port is connected to the external splines of the input shaft of the wheel side reducer, and the other port is connected to the external splines of the large end of the axle shaft.

3. The vehicle axle end drive device according to claim 1, characterized in that: The first fastener includes a backing plate and a large nut; A stepped groove is formed inside the cavity of the spline sleeve. After the input shaft of the wheel side reducer is inserted into the spline sleeve, the backing plate is sleeved on the input shaft located in the stepped groove, and the large nut is screwed on the input shaft to prevent the backing plate from moving axially.

4. The vehicle axle end drive device according to claim 1, characterized in that: A pulse wheel is sleeved on the shaft rod located at the rear side of the large end of the axle shaft, and the pulse wheel can rotate together with the axle shaft; The speed sensor is installed on the bridge housing at a position radially opposite to the pulse wheel, and there is a gap between the two. The speed sensor transmits the rotation speed signal to the whole machine controller in real time.

5. The vehicle axle end drive device according to claim 4, characterized in that: The inner ring of the chakras is a kidney-shaped hole, and the position where the half shafts are fitted is a kidney-shaped structure, which plays a tangential limiting role for the chakras. The two sides of the chakras are limited by snap rings, which play an axial limiting role for the chakras.

6. The axle end drive device according to claim 1, wherein: Grooves are provided on both sides of the transition flange for installing sealing rings, which are respectively fitted with the flange surfaces of the axle housing and the wheel side reducer flange; Positioning pin holes are provided at symmetrical positions of the transition flange and are connected to the axle housing and the wheel side reducer by installing positioning pins, and then the three are fixed together by bolt Ⅰ.

7. The axle end drive device according to claim 1, wherein: The circular hole in the inner ring of the transition flange is fitted with the flange stop of the wheel side reducer and the flange stop of the axle housing, which plays a radial limiting role.

8. An installation method of an axle end drive device, wherein: Install the positioning pin in the positioning hole corresponding to the flange on the end face of the axle housing; after installing the sealing rings on the corresponding grooves on both sides of the transition flange respectively, integrally embed the positioning pin so that one end face of the transition flange is fitted with the flange on the end face of the axle housing; Install the brake joint at the brake oil port on the side of the wheel side reducer; install the spline sleeve on the input shaft of the wheel side reducer through the backing plate and the large nut; install the chakra at the middle position of the half shaft through the snap ring; Embed the half shaft into the spline sleeve so that the front side of the large end of the half shaft is fitted with the end face of the input shaft of the wheel side reducer, measure the distance A between the rear side of the large end of the half shaft and the flange surface of the spline sleeve and adjust the distance through the adjusting component; Embed the wheel side reducer, brake joint, spline sleeve, backing plate, large nut, half shaft, chakra, snap ring, adjusting component connected as a whole into the positioning pin so that the flange end face of the wheel side reducer is fitted with the end face of the transition flange, install the gasket and bolt Ⅰ to complete the assembly of the axle end drive device; If the value of A is within the range of A±Δa, install the limit plate on the spline sleeve through bolt Ⅱ to complete the installation of the half shaft; If the value of A is greater than A+Δa, calculate the correct thickness of the adjusting gasket according to the error value, increase the number of the first adjusting gaskets so that the value of A is within the range of A±Δa, and then install the limit plate on the spline sleeve through bolt Ⅱ to complete the installation of the half shaft; If the value of A is less than A-Δa, calculate the correct thickness of the adjusting gasket according to the error value, increase the number of the second adjusting gaskets so that the value of A is within the range of A±Δa, and then install the limit plate on the spline sleeve through bolt Ⅱ to complete the installation of the half shaft.

9. A mining dump truck, wherein: It is equipped with the axle end drive device according to any one of claims 1 to 7.

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