Main cone assembly convenient to assemble

Abstract

The utility model discloses a main cone assembly convenient to assemble, which comprises a cone head and a connecting shaft fixedly connected to one end of the cone head, the connecting shaft is sleeved with a bearing seat and a flange, the two ends of the bearing seat are respectively sleeved with an upper cone bearing and a lower cone bearing, and the main cone assembly further comprises a mounting component arranged on the connecting shaft and used for mounting the upper cone bearing. The mounting assembly comprises a spline groove formed in the side wall of the connecting shaft, the side wall of the spline groove is sleeved with a spline sleeve, and the connecting shaft is provided with a locking assembly used for locking the spline sleeve. According to the main cone assembly convenient to assemble, due to the arrangement of the mounting assembly, the upper cone bearing and the connecting shaft are detachably connected, so that when a torque gasket is selected to rotate, a bearing inner ring with large interference magnitude does not need to be repeatedly pressed and disassembled by special equipment, the risk of scratching parts is reduced, and the production efficiency is improved. Therefore, the production efficiency and the product quality of main cone assembly assembling are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts assembly technology, specifically to a main cone assembly that is easy to assemble. Background Technology

[0002] The main cone assembly is one of the key components for reducing speed and increasing torque in the drive axle. Currently, the main cone assembly consists of a drive bevel gear (referred to as the main cone), upper and lower cone bearings, spacers, shims, and the main cone housing. The upper and lower cone bearings are positioned with their small ends facing upwards. By assembling different types of shims, the distance between the inner rings of the upper and lower bearings can be increased or decreased. The outer rings of the bearings are directly press-fitted to the main cone housing without changing the distance between them. Therefore, the rotational torque of the main cone assembly can be adjusted through these changes.

[0003] The commonly used torque control method in the industry (shim selection method) first employs a uniform and relatively thick process shim, much thicker than a normal shim. Each component is assembled sequentially (the bearing inner ring has an interference fit with the main cone and needs to be press-fitted onto the main cone; the bearing outer ring has an adjustable interference fit with the main cone and needs to be press-fitted onto the housing; the selected shim is placed between the two bearing inner rings). With the housing normally supported and other components suspended, the main cone is moved up and down. The required thickness of the process shim is calculated based on the distance of the movement on both sides of the main cone. Then, the upper bearing inner ring is removed from the main cone, the calculated shim is reassembled, and the upper bearing inner ring is press-fitted into place. Finally, the torque of the main cone assembly is checked to ensure it meets the requirements. If it does not, the difference in torque is calculated, the bearing inner ring is disassembled again, a new shim is replaced, and the assembly is re-press-fitted until the test is passed.

[0004] Using the aforementioned shim selection method requires 1-3 times of bearing disassembly and press-fitting. Since the main cone assembly is a speed reduction and torque-increasing component in the axle, the interference fit between the bearing and the main cone is very large, requiring 5-10 tons of press-fitting force to press it into place. Therefore, the disassembly and reassembly of the bearing inner ring both require specialized equipment. To ensure production cycle time, each production line will be equipped with a specialized machine for each disassembly and reassembly, resulting in a large amount of cost investment in the production line. At the same time, frequent press-fitting and disassembly of the bearing inner ring will cause scratches on the parts, seriously affecting the life of the main cone assembly.

[0005] Therefore, there is an urgent need for a main cone assembly that is easy to assemble to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, the present invention provides the following technical solution: a main cone assembly that is easy to assemble, comprising a cone head and a connecting shaft fixedly connected to one end of the cone head, wherein the connecting shaft is fitted with a bearing seat and a flange, and an upper cone bearing and a lower cone bearing are respectively fitted at both ends of the bearing seat, and further comprising an installation component disposed on the connecting shaft for installing the upper cone bearing;

[0007] The mounting assembly includes a spline groove formed on the side wall of the connecting shaft, a spline sleeve fitted on the side wall of the spline groove, and a locking assembly for locking the spline sleeve on the connecting shaft.

[0008] The spline sleeve is interference-fitted with the inner ring of the upper tapered bearing.

[0009] The locking assembly includes a threaded strip formed on the side wall of the connecting shaft, and a locking nut is threadedly connected to the threaded strip. The locking nut is located between the flange and the upper tapered bearing.

[0010] The connecting shaft sidewall is fitted with a process spacer, which is located between the upper tapered bearing and the lower tapered bearing. The process spacer is equipped with an marking component for marking the bearing inner ring spacing between the upper tapered bearing and the lower tapered bearing.

[0011] The marking component includes a fixing hole opened in the process spacer near the upper tapered bearing. A marking tube is fixedly connected in the fixing hole. A marking rod is connected to the marking tube through a pressing component. A sliding hole is opened in the end of the marking tube near the upper tapered bearing. The marking rod is slidably connected to the sliding hole, and the marking rod and the sliding hole are matched.

[0012] The extrusion assembly includes an extrusion plate slidably connected inside the marking tube. One end of the marking rod is connected to the extrusion plate. A spring is fixedly connected to the side of the extrusion plate away from the marking rod. The other end of the spring is connected to the bottom wall of the marking tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model's easy-to-assemble main cone assembly, through the setting of the mounting components, allows for a detachable connection between the upper cone bearing and the connecting shaft. This eliminates the need to rely on specialized equipment for repeated pressing and disassembly of the bearing inner ring with a large interference fit when selecting torque shims, thereby reducing the risk of scratching parts. This improves the production efficiency and product quality of the main cone assembly assembly. Furthermore, the locking components reduce minor displacements during the operation of the main cone assembly, alleviating the problem of unstable torque caused by minor displacements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a sectional view of the main cone assembly of this utility model;

[0017] Figure 3 This is a schematic diagram showing the positions of the marking component and the process spacer of this utility model;

[0018] Figure 4 This is an exploded view of the main cone assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the marking component of this utility model;

[0020] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0021] In the diagram: 101, cone head; 102, connecting shaft; 103, bearing seat; 104, upper tapered bearing; 105, lower tapered bearing; 106, flange; 201, spline sleeve; 202, spline groove; 301, lock nut; 302, threaded strip; 4, process spacer; 501, fixing hole; 502, marking tube; 503, marking rod; 504, sliding hole; 601, extrusion plate; 602, spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figures 1-6 The figure shows a main cone assembly that is easy to assemble, including a cone head 101 and a connecting shaft 102 fixedly connected to one end of the cone head 101. The connecting shaft 102 is fitted with a bearing seat 103 and a flange 106. The two ends of the bearing seat 103 are respectively fitted with an upper cone bearing 104 and a lower cone bearing 105. The assembly also includes a mounting component disposed on the connecting shaft 102 for mounting the upper cone bearing 104.

[0025] The mounting assembly includes a spline groove 202 formed on the side wall of the connecting shaft 102, a spline sleeve 201 sleeved on the side wall of the spline groove 202, and a locking assembly for locking the spline sleeve 201.

[0026] It should be noted that the installation components allow for a detachable connection between the upper tapered bearing 104 and the connecting shaft 102. This eliminates the need for repeated pressing and disassembly of the bearing inner ring with a large interference fit when selecting torque shims, thereby reducing the risk of scratching components. This improves the production efficiency and product quality of the main tapered assembly assembly. Furthermore, the locking components reduce minor displacements during the main tapered assembly's operation, alleviating the problem of unstable torque caused by minor displacements.

[0027] Please see Figure 2 and Figure 3 The spline sleeve 201 in the figure has an interference fit with the inner ring of the upper tapered bearing 104;

[0028] It should be noted that by using an interference fit between the spline sleeve 201 and the inner ring of the upper tapered bearing 104, the spline sleeve 201 is assembled to the upper tapered bearing 104 by press fitting, and the connection strength between them can be maintained.

[0029] Please see Figures 1-4 The locking assembly shown in the figure includes a threaded bar 302 formed on the side wall of the connecting shaft 102, and a locking nut 301 is threadedly connected to the threaded bar 302. The locking nut 301 is located between the flange 106 and the upper tapered bearing 104.

[0030] It should be noted here that by setting up the locking component, the slight displacement of the main cone assembly during operation is reduced, thus alleviating the problem of unstable rotational torque caused by slight displacement.

[0031] Please see Figures 2-4 The connecting shaft 102 in the figure is fitted with a process spacer 4 on its side wall. The process spacer 4 is located between the upper tapered bearing 104 and the lower tapered bearing 105. The process spacer 4 is provided with an marking component for marking the bearing inner ring spacing between the upper tapered bearing 104 and the lower tapered bearing 105.

[0032] It should be noted that the process spacer 4 and the gasket work together to ensure the assembly accuracy between the upper tapered bearing 104 and the lower tapered bearing 105 and to precisely adjust the clearance between them, so that they are in the best working condition.

[0033] Working principle: When assembling the main cone assembly, the spline sleeve 201 is first pressed onto the inner ring of the upper cone bearing 104. Then, according to the selected shim scheme, the lower bearing inner ring, spacer, bearing housing 103, and upper cone bearing 104 with spline sleeve 201 are assembled in sequence. The locking nut 301 and the threaded strip 302 on the side wall of the connecting shaft 102 are used to limit the spline sleeve 201 and the upper surface of the upper cone bearing 104.

[0034] After assembly, the thickness of the selected gasket is marked and detected using the marking component, which provides data support for the selection of gaskets and improves the efficiency and accuracy of gasket selection.

[0035] Then, the upper tapered bearing 104 with spline sleeve 201 is manually removed from the connecting shaft 102, and the selected shim is placed along the side wall of the connecting shaft 102 so that the shim is between the process spacer 4 and the upper tapered bearing 104. This ensures the assembly accuracy between the upper tapered bearing 104 and the lower tapered bearing 105 and precisely adjusts the clearance between the upper tapered bearing 104 and the lower tapered bearing 105 to make it in the best working state. After the shim is selected and installed, the spline sleeve 201 is pressed down again using a pressing device to make it in a certain pressing state, and the rotational torque of the main tapered assembly is tested. If it is unqualified, the accuracy of the shim selection can be ensured by more precise testing of the marking components. The above action can be repeated until the rotational torque is qualified.

[0036] Therefore, by setting the mounting components, the upper tapered bearing 104 and the connecting shaft 102 are detachably connected. This eliminates the need to rely on special equipment to repeatedly press and disassemble the bearing inner ring with a large interference fit when selecting torque shims, thereby reducing the risk of scratching parts. This improves the production efficiency and product quality of the main tapered assembly assembly. Furthermore, the locking components reduce the slight displacement of the main tapered assembly during operation, alleviating the problem of unstable torque caused by slight displacement.

[0037] Example 2

[0038] Please see Figure 5 and Figure 6 This embodiment further illustrates Example 1. The marking component shown in the figure includes a fixing hole 501 opened at one end of the process spacer 4 near the upper tapered bearing 104. A marking tube 502 is fixedly connected in the fixing hole 501. The marking tube 502 is connected to a marking rod 503 through a pressing component. A sliding hole 504 is opened at one end of the marking tube 502 near the upper tapered bearing 104. The marking rod 503 is slidably connected to the sliding hole 504, and the marking rod 503 and the sliding hole 504 are matched and configured.

[0039] It should be noted that: by setting up the marking component, the upper tapered bearing 104 presses on the marking rod 503 and the pressing component resets the marking rod 503, causing scratch marks to appear on the marking paint on the side wall of the marking rod 503. By measuring the distance from the end of the marking rod 503 to the scratch mark on the marking paint, the bearing inner ring distance between the upper tapered bearing 104 and the lower tapered bearing 105 can be obtained, thus providing data support for the selection of shims and improving the efficiency and accuracy of shim selection.

[0040] Please see Figure 5 and Figure 6 The extrusion assembly shown in the figure includes an extrusion plate 601 slidably connected inside the marking tube 502, one end of the marking rod 503 being connected to the extrusion plate 601, a spring 602 being fixedly connected to the side of the extrusion plate 601 away from the marking rod 503, and the other end of the spring 602 being connected to the bottom wall of the marking tube 502.

[0041] It should be noted here that the compression component is designed to guide and reset the movement of the marker pole 503.

[0042] Working principle: When assembling the main cone assembly, the side wall of the marker rod 503 is coated with marking paint. When the upper cone bearing 104 is assembled into the bearing seat 103 and locked by the locking assembly, the marker rod 503 will be squeezed, causing the marker rod 503 to retract into the marker tube 502. During the process of the marker rod 503 retracting into the marker tube 502, the marking paint on the side wall of the marker rod 503 will be scraped off by the friction between the marker rod 503 and the sliding hole 504.

[0043] When it is necessary to determine the bearing inner ring spacing between the upper tapered bearing 104 and the lower tapered bearing 105 to facilitate shim selection, the upper tapered bearing 104 can be removed from the side wall of the connecting shaft 102. At this time, the compression on the marking rod 503 will be released, and under the elastic action of the compression component, the marking rod 503 will move out of the marking tube 502. Therefore, the bearing inner ring spacing between the upper tapered bearing 104 and the lower tapered bearing 105 can be obtained by measuring the distance from the end of the marking rod 503 to the scraping mark of the marking paint. This provides data support for shim selection, thereby improving the efficiency and accuracy of shim selection.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A main cone assembly convenient to assemble, comprising: a cone head (101) and a connecting shaft (102) fixedly connected to one end of the cone head (101), the connecting shaft (102) being sleeved with a bearing seat (103) and a flange (106), both ends of the bearing seat (103) being sleeved with an upper cone bearing (104) and a lower cone bearing (105) respectively; characterized in that further comprising: an installation assembly provided on the connecting shaft (102) for installing the upper cone bearing (104); the installation assembly comprising a spline groove (202) opened on the side wall of the connecting shaft (102), the spline groove (202) being sleeved with a spline sleeve (201), the connecting shaft (102) being provided with a locking assembly for locking the spline sleeve (201).

2. A main cone assembly for facilitating assembly as claimed in claim 1, wherein: The spline sleeve (201) and the bearing inner ring of the upper cone bearing (104) are in interference fit.

3. A main cone assembly for facilitating assembly as claimed in claim 2, wherein: The locking assembly comprises a threaded strip (302) opened on the side wall of the connecting shaft (102), the threaded strip (302) being threadedly connected with a locking nut (301), the locking nut (301) being located between the flange (106) and the upper cone bearing (104).

4. A main cone assembly for facilitating assembly as claimed in claim 3, wherein: The side wall of the connecting shaft (102) is sleeved with a process spacer sleeve (4), the process spacer sleeve (4) being located between the upper cone bearing (104) and the lower cone bearing (105), the process spacer sleeve (4) being provided with an identification assembly for identifying the spacing of the bearing inner rings between the upper cone bearing (104) and the lower cone bearing (105).

5. A main cone assembly for facilitating assembly as claimed in claim 4, wherein: The identification assembly comprises a fixing hole (501) opened on the end of the process spacer sleeve (4) close to the upper cone bearing (104), the fixing hole (501) being fixedly connected with an identification tube (502) inside, the identification tube (502) being connected with an identification rod (503) through a pressing assembly, the end of the identification tube (502) close to the upper cone bearing (104) being opened with a sliding hole (504), the identification rod (503) being slidingly connected to the sliding hole (504), and the identification rod (503) and the sliding hole (504) being matched.

6. A main cone assembly for facilitating assembly as claimed in claim 5, wherein: The pressing assembly comprises a pressing plate (601) slidingly connected inside the identification tube (502), one end of the identification rod (503) being connected with the pressing plate (601), the pressing plate (601) being fixedly connected with a spring (602) on the side away from the identification rod (503), the other end of the spring (602) being connected with the bottom wall of the identification tube (502).

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