Wheel excavator drive axle bearing oil seal assembly tool

Abstract

The utility model discloses a wheel type excavator drive axle bearing oil seal assembly tool which aims to solve the problems that in the existing wheel type excavator drive axle bearing oil seal assembly process, the striking force is difficult to control, a bearing is prone to deformation, noise is generated, and meanwhile the service life of the bearing is affected. An extrusion mechanism (1), a positioning mechanism I (6) and a positioning mechanism II (15) are arranged on a base (4), the positioning mechanism I (6) is mounted on one side of the extrusion mechanism (1), the positioning mechanism II (15) is arranged on the other side of the extrusion mechanism (1), and the extrusion mechanism (1), the positioning mechanism I (6) and the positioning mechanism II (15) form a U shape.

Description

Technical Field

[0001] The invention relates to an assembly tool for a wheeled excavator drive axle, in particular to an assembly tool for a bearing oil seal of a wheeled excavator drive axle. Background Art

[0002] At present, there is a method for assembling the oil seal of the drive axle bearing of a wheeled excavator disclosed in the market. First, the bearing is placed in the axle housing of the drive axle of the wheeled excavator, and then the end face of the bearing is hit with a rubber hammer. When hitting, it is necessary to hit along the symmetrical points on the end face of the bearing in sequence to press the entire bearing into the axle housing. Since an oil seal is provided on the end face of the bearing facing outward, there is a position in the axle housing where the oil seal can be placed. For this reason, the bearing cannot be pressed to the bearing position in one step. At this time, it is necessary to use a copper rod to hit the bearing to the bearing position, and finally install the oil seal in the axle housing at the outer end of the bearing. Therefore, the hitting force is difficult to control, which can easily cause deformation of the bearing, thereby generating noise, and also affects the service life of the bearing. Summary of the invention

[0003] The purpose of the present invention is to provide a wheeled excavator drive axle bearing oil seal assembly tool which has a simple structure, is not prone to bearing deformation, reduces noise generation, and prolongs the service life of the bearing.

[0004] In order to achieve the above-mentioned purpose, the wheeled excavator drive axle bearing oil seal assembly tooling of the present invention is composed of a base, an extrusion mechanism, a positioning mechanism I and a positioning mechanism II. The extrusion mechanism, the positioning mechanism I and the positioning mechanism II are arranged on the base, the positioning mechanism I is installed on one side of the extrusion mechanism, and the positioning mechanism II is arranged on the other side of the extrusion mechanism, and the extrusion mechanism, the positioning mechanism I and the positioning mechanism II form a U shape.

[0005] The extrusion mechanism consists of a cylinder, a cylinder seat, an adjusting device and a pull rod. The cylinder is arranged on the cylinder seat. The cylinder rod passes through the cylinder seat and is connected to the pressure head. A pull rod is arranged above the cylinder seat. One end of the pull rod is connected to the positioning mechanism I, and the other end of the pull rod is connected to the positioning mechanism II. An adjusting device is installed between the cylinder seat and the pull rod to facilitate the up and down movement of the cylinder.

[0006] The adjusting device is composed of an upper nut, a lower nut and a screw rod. The upper nut is installed on the pull rod, the lower nut is arranged on the cylinder seat, and the screw rod is threadedly connected with the upper nut and the lower nut.

[0007] The cylinder seat is arranged to have a T-shape in axial cross section, and the two sides of the cylinder seat are respectively connected to the cylinder seat I and the cylinder seat II on the positioning mechanism I and the positioning mechanism II, a hole is arranged at the center of the cylinder seat for the cylinder rod to pass through, a plurality of through holes are arranged on both sides of the cylinder seat for the connection with the cylinder seat I and the cylinder seat II, and a plurality of screw holes are also arranged on the cylinder seat for the installation of the cylinder.

[0008] The positioning mechanism I is composed of a cylinder seat I, a cylinder, a support I, a slider I and a slide rail I. The support I installed on the base is connected to the cylinder seat I for up and down sliding movement through the slide rail I and the slider I. The cylinder is arranged on the cylinder seat I, and one end of the cylinder rod I passes through the cylinder seat I and is connected to the positioning pin I.

[0009] A hole is arranged at the center of the cylinder seat I for the cylinder rod I to pass through, a plurality of screw holes are arranged on one end face of the cylinder seat I for connection with the cylinder seat, a plurality of screw holes are arranged on the cylinder seat I for installing the cylinder, and a plurality of screw holes are arranged on the cylinder seat I for locking the slider I.

[0010] The support I is arranged to have an L-shaped axial section, and a hole for placing the cylinder is arranged on one side of the L-shape perpendicular to the axis of the cylinder seat, and a plurality of screw holes for installing the slide rail I are arranged on the surface of the side close to the cylinder seat I.

[0011] The positioning mechanism II is composed of a cylinder seat II, a cylinder, a support II, a slider II and a slide rail II. The support II installed on the base is slidably connected to the cylinder seat II through the slide rail II and the slider II. The cylinder is arranged on the cylinder seat II, and one end of the cylinder rod II passes through the cylinder seat II and is connected to the positioning pin II.

[0012] A hole is arranged at the center of the cylinder seat II for the cylinder rod II to pass through, a plurality of screw holes are arranged on one end face of the cylinder seat II for connecting with the cylinder seat, a plurality of screw holes are arranged on the cylinder seat II for installing the cylinder, and a plurality of screw holes are arranged on the cylinder seat II for locking the slider I.

[0013] The support II is configured to have an L-shaped axial section, and a hole for placing the cylinder is provided on one side of the L-shape perpendicular to the axis of the cylinder seat, and a plurality of screw holes for installing the slide rail II are provided on the surface of the side close to the cylinder seat II.

[0014] After adopting this structure, since the base is provided with an extrusion mechanism, a positioning mechanism I and a positioning mechanism II, the positioning mechanism I is installed on one side of the extrusion mechanism, and the positioning mechanism II is arranged on the other side of the extrusion mechanism, and the extrusion mechanism, the positioning mechanism I and the positioning mechanism II form a U shape. Thus, the structure is simple, it is not easy to cause bearing deformation, the noise generation is reduced, and the service life of the bearing is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] Attached Figure 1 It is a three-dimensional schematic diagram of the wheeled excavator drive axle bearing oil seal assembly tooling of the present invention.

[0017] Attached Figure 2It is a main cross-sectional schematic diagram of a wheeled excavator drive axle bearing oil seal assembly tooling of the present invention.

[0018] In the figure: 1. Extrusion mechanism 2. Cylinder rod 3. Adjustment device 4. Base 5. Pull rod 6. Positioning mechanism I 7. Cylinder rod I 8. Support I 9. Slide rail I 10. Slider I 11. Cylinder seat I 12. Pressure head 13. Bridge housing 14. Cylinder seat II 15. Positioning mechanism II 16. Cylinder rod II 17. Slide rail II 18. Slider II 19. Support II 20. Cylinder seat. DETAILED DESCRIPTION

[0019] Attached Figure 1 and attached Figure 2The wheel excavator drive axle bearing oil seal assembly tooling of the present invention is composed of a base 4, an extrusion mechanism 1, a positioning mechanism I6 and a positioning mechanism II15. The extrusion mechanism 1, the positioning mechanism I6 and the positioning mechanism II15 are arranged on the base 4, the positioning mechanism I6 is installed on one side of the extrusion mechanism 1, and the positioning mechanism II15 is arranged on the other side of the extrusion mechanism 1, so that the extrusion mechanism 1, the positioning mechanism I6 and the positioning mechanism II15 form a U shape; the extrusion mechanism 1 is composed of a cylinder, a cylinder seat 20, an adjusting device 3 and a pull rod 5, the cylinder is arranged on the cylinder seat 20, the cylinder rod 2 passes through the cylinder seat 20 and is connected to the pressure head 12, and a pull rod 5 is arranged above the cylinder seat 20, and one end of the pull rod 5 is connected to the positioning The cylinder seat 20 is connected with the mechanism I6, and the other end of the pull rod 5 is connected with the positioning mechanism II15. An adjusting device 3 is installed between the cylinder seat 20 and the pull rod 5 to facilitate the up and down movement of the cylinder; the adjusting device 3 is composed of an upper nut, a lower nut and a screw rod, the upper nut is installed on the pull rod 5, the lower nut is arranged on the cylinder seat 20, and the screw rod is threadedly connected with the upper nut and the lower nut; the cylinder seat 20 is arranged to have a T-shaped axial cross section, and the two sides of the cylinder seat 20 are also respectively connected with the cylinder seat I11 and the cylinder seat II14 on the positioning mechanism I6 and the positioning mechanism II15, a hole is arranged at the center of the cylinder seat 20 for the cylinder rod 2 to pass through, and a plurality of holes are arranged on both sides of the cylinder seat 20 for facilitating the connection with the cylinder seat I11 and the cylinder seat II14. The through hole connected to the cylinder seat II 14 is provided on the cylinder seat 20, and a plurality of screw holes for facilitating the installation of the cylinder are also provided; the positioning mechanism I6 is composed of a cylinder seat I11, a cylinder, a support I8, a slider I10 and a slide rail I9, and the support I8 installed on the base 4 is connected to the cylinder seat I11 by sliding the slide rail I9 and the slider I10 up and down, and the cylinder is arranged on the cylinder seat I11, and one end of the cylinder rod I7 passes through the cylinder seat I11 and is connected to the positioning pin I; a hole for facilitating the passage of the cylinder rod I7 is provided at the center position of the cylinder seat I11, and a plurality of screw holes for facilitating the connection with the cylinder seat 20 are provided on one end surface of the cylinder seat I11, and a plurality of screw holes for facilitating the installation of the cylinder are also provided on the cylinder seat I11. The support Ⅰ8 is set to have an L-shaped axial cross section, and a hole for placing the cylinder is set on one side of the L-shape perpendicular to the axis of the cylinder seat 20, and a plurality of screw holes for installing the slide rail Ⅰ9 are set on the surface of the side close to the cylinder seat Ⅰ11; the positioning mechanism Ⅱ15 is composed of a cylinder seat Ⅱ14, a cylinder, a support Ⅱ19, a slide block Ⅱ18 and a slide rail Ⅱ17, the support Ⅱ19 installed on the base 4 is slidably connected to the cylinder seat Ⅱ14 through the slide rail Ⅱ17 and the slide block Ⅱ18, the cylinder is set on the cylinder seat Ⅱ14, and one end of the cylinder rod Ⅱ16 passes through the cylinder seat Ⅱ14 and is connected to the positioning pin Ⅱ;A hole is provided at the center of the cylinder seat II14 for the cylinder rod II16 to pass through, and multiple screw holes are provided on one end surface of the cylinder seat II14 for connecting with the cylinder seat 20. Multiple screw holes are also provided on the cylinder seat II14 for installing the cylinder, and multiple screw holes are also provided on the cylinder seat II14 for locking the slider I10. The support II19 is provided in an L-shaped axial section, and a hole is provided on one side of the L-shaped side perpendicular to the axis of the cylinder seat 20 for placing the cylinder, and multiple screw holes are provided on the surface of the side close to the cylinder seat II14 for installing the slide rail II17. ;

[0020] During assembly, first place the bridge housing 13 on the workbench so that the axis of the bridge housing 13 is parallel to the horizontal plane, then rotate the screw on the adjusting device 3 so that the axis of the cylinder rod 2 of the extrusion mechanism 1, the axis of the cylinder rod Ⅰ7 of the positioning mechanism Ⅰ6 and the axis of the cylinder rod Ⅱ16 of the positioning mechanism Ⅱ15 are in the same horizontal plane as the axis of the bridge housing 13, then start the cylinders on the positioning mechanism Ⅰ6 and the positioning mechanism Ⅱ15, and fix one end of the bridge housing 13 with the locating pins Ⅰ and locating pins Ⅱ. At this time, start the cylinder on the extrusion mechanism 1 to press the bearing on the pressure head 12 into the bridge housing 13, finally withdraw the pressure head 12, and seal the oil seal in the pressure head 12, and then the cylinder drives the pressure head 12 to press the oil seal into the bridge housing 13.

Claims

1. A wheeled excavator drive axle bearing oil seal assembly tool, characterized in that: The invention is composed of a base (4), an extrusion mechanism (1), a positioning mechanism I (6) and a positioning mechanism II (15). The extrusion mechanism (1), the positioning mechanism I (6) and the positioning mechanism II (15) are arranged on the base (4). The positioning mechanism I (6) is installed on one side of the extrusion mechanism (1), and the positioning mechanism II (15) is arranged on the other side of the extrusion mechanism (1). The extrusion mechanism (1), the positioning mechanism I (6) and the positioning mechanism II (15) form a U shape.

2. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 1, characterized in that: The extrusion mechanism (1) is composed of a cylinder, a cylinder seat (20), an adjusting device (3) and a pull rod (5). The cylinder is arranged on the cylinder seat (20). The cylinder rod (2) passes through the cylinder seat (20) and is connected to the pressure head (12). A pull rod (5) is arranged above the cylinder seat (20). One end of the pull rod (5) is connected to the positioning mechanism I (6), and the other end of the pull rod (5) is connected to the positioning mechanism II (15). An adjusting device (3) is installed between the cylinder seat (20) and the pull rod (5) to facilitate the adjustment of the up and down movement of the cylinder.

3. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 2, characterized in that: The adjusting device (3) is composed of an upper nut, a lower nut and a screw rod. The upper nut is mounted on the pull rod (5), the lower nut is arranged on the cylinder seat (20), and the screw rod is threadedly connected to the upper nut and the lower nut.

4. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 2, characterized in that: The cylinder seat (20) is configured to have a T-shaped axial cross section. The two sides of the cylinder seat (20) are respectively connected to the cylinder seat I (11) and the cylinder seat II (14) on the positioning mechanism I (6) and the positioning mechanism II (15). A hole is provided at the center of the cylinder seat (20) for the cylinder rod (2) to pass through. A plurality of through holes are provided on both sides of the cylinder seat (20) for connecting with the cylinder seat I (11) and the cylinder seat II (14). A plurality of screw holes are also provided on the cylinder seat (20) for installing the cylinder.

5. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 1, characterized in that: The positioning mechanism I (6) is composed of a cylinder seat I (11), a cylinder, a support seat I (8), a slider I (10) and a slide rail I (9). The support seat I (8) installed on the base (4) is connected to the cylinder seat I (11) by sliding up and down through the slide rail I (9) and the slider I (10). The cylinder is arranged on the cylinder seat I (11), and one end of the cylinder rod I (7) passes through the cylinder seat I (11) and is connected to the positioning pin I.

6. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 5, characterized in that: A hole is provided at the center of the cylinder seat I (11) for the cylinder rod I (7) to pass through, a plurality of screw holes are provided on one end surface of the cylinder seat I (11) for connection with the cylinder seat (20), a plurality of screw holes are provided on the cylinder seat I (11) for installing the cylinder, and a plurality of screw holes are provided on the cylinder seat I (11) for locking the slider I (10).

7. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 5, characterized in that: The support I (8) is configured to have an L-shaped axial cross-section, and a hole for accommodating the cylinder is provided on one side of the L-shape perpendicular to the axis of the cylinder seat (20), and a plurality of screw holes for accommodating the installation of the slide rail I (9) are provided on the surface of the side close to the cylinder seat I (11).

8. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 1, characterized in that: The positioning mechanism II (15) is composed of a cylinder seat II (14), a cylinder, a support II (19), a slider II (18) and a slide rail II (17). The support II (19) installed on the base (4) is slidably connected to the cylinder seat II (14) through the slide rail II (17) and the slider II (18). The cylinder is arranged on the cylinder seat II (14). One end of the cylinder rod II (16) passes through the cylinder seat II (14) and is connected to the positioning pin II.

9. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 8, characterized in that: A hole is provided at the center of the cylinder seat II (14) for the cylinder rod II (16) to pass through, a plurality of screw holes are provided on one end surface of the cylinder seat II (14) for connection with the cylinder seat (20), a plurality of screw holes are provided on the cylinder seat II (14) for installing the cylinder, and a plurality of screw holes are provided on the cylinder seat II (14) for locking the slider I (10).

10. The wheeled excavator drive axle bearing oil seal assembly tool according to claim 8, characterized in that: The support II (19) is configured to have an L-shaped axial cross section, and a hole for accommodating the cylinder is provided on one side of the L-shape perpendicular to the axis of the cylinder seat (20), and a plurality of screw holes for accommodating the installation of the slide rail II (17) are provided on the surface of the side close to the cylinder seat II (14).

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