Axle main bevel gear bearing press-fitting machine

Abstract

The utility model discloses an axle main bevel gear bearing press-fitting machine, which relates to the technical field of axle processing, is used for solving the problems that the existing main bevel gear bearing press-fitting operation is complicated and the assembly is easy to deviate, and comprises a rack and a hydraulic mechanism, the hydraulic mechanism is arranged on the downward pressing platform, the hydraulic mechanism comprises a downward pressing head, a positioning plate and a tool are arranged on the downward pressing platform, the positioning plate comprises a positioning groove, the positioning groove is located under the pressing head, and a detection sensor assembly is arranged on the outer side wall of the hydraulic mechanism. The bearing inner ring is subjected to cold press fitting, after the bearing inner ring is subjected to press fitting in place, deviation cannot occur, the installation procedure is omitted in the process, the bearing inner ring does not need to be preheated, press fitting operation is simplified, the good press fitting effect is achieved, and the problems that an existing main bevel gear bearing is complex in press fitting operation and prone to deviation in assembly are solved.

Description

Technical Field

[0001] This utility model relates to the field of axle processing technology, and in particular to a press-fitting machine for axle main bevel gear bearings. Background Technology

[0002] During the machining of the axle, the main bevel gear bearing of the axle (rear axle) needs to be press-fitted. That is, when installing the main bevel gear of the axle, a tapered roller bearing needs to be press-fitted at the cone shank. Currently, the bearing is installed by heating the inner ring of the bearing. First, the inner ring of the bearing is heated. After heating, the inner ring of the bearing is put into the rack. The rack will rotate 180° to proceed to the next step of installation. This process requires heating and rotation, which is not only complicated to operate, but also may cause the uncooled inner ring of the bearing to slip off during the rotation process, resulting in misalignment and affecting the service life in the later stage.

[0003] Therefore, in view of the shortcomings of the above-mentioned solutions in actual production and implementation, modifications and improvements have been made. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after much ingenuity and experimentation, a main bevel gear bearing press-fitting machine for axles is specially provided to solve the problems of complex main bevel gear bearing press-fitting operations and easy misalignment during assembly. Utility Model Content

[0004] The purpose of this invention is to provide a press-fitting machine for main bevel gear bearings of axles, which solves the problems of complex press-fitting operations and easy misalignment during assembly of main bevel gear bearings.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A press-fitting machine for main bevel gear bearings of axles includes a frame and a hydraulic mechanism. The hydraulic mechanism is equipped with a hydraulic station, which is located on a single layer at the bottom of the frame. A pressing platform is provided at the top of the frame, and the hydraulic mechanism is located on the pressing platform. The hydraulic mechanism includes a main body and a hydraulic cylinder located within the main body. The pressing head of the hydraulic cylinder protrudes downwards. The hydraulic mechanism includes a downward-facing pressing head. A positioning plate and a tooling are provided on the pressing platform. The positioning plate includes a positioning groove, and the tooling cooperates with the positioning groove. The positioning groove is located directly below the pressing head. A detection sensor assembly is provided on the outer wall of the hydraulic mechanism to detect the pressing state of the pressing head.

[0007] In a preferred embodiment, the detection sensor assembly includes a sliding base with a longitudinally arranged groove on the sliding base, a sliding rod connected to the pressure head, the end of the sliding rod slidingly engaging with the groove, and a plurality of sensors for detecting the position of the sliding rod being provided on the sliding base.

[0008] In a preferred embodiment, the slide bar is arranged in a horizontal direction.

[0009] In a preferred embodiment, the positioning plate is provided with a guide slot communicating with the positioning groove, the guide slot being used for the tooling to slide into the positioning groove.

[0010] In a preferred embodiment, the frame is equipped with a control system and operation buttons, and the control system is communicatively connected to the hydraulic mechanism and the detection sensor assembly.

[0011] The control system is used to enable communication between the hydraulic mechanism and the detection sensor components. The operation buttons, in conjunction with the control system, are used to control and set the hydraulic mechanism and the detection sensor components.

[0012] The operator places the inner ring of the bearing on the fixture, then inserts the main bevel gear into the fixture, pushes the fixture into the pressing position (i.e., the positioning groove) along the guide groove, presses the start button, and the hydraulic cylinder drives the press head to press down. After pressing into place, the hydraulic cylinder lifts up and pushes the fixture back to the material release position to complete the pressing.

[0013] After pressing the operation button, the control system sends a command to the hydraulic mechanism to press down, and the machine head presses down. The detection sensor assembly sets sensors at multiple locations to detect the position of the slide bar, and indirectly detects the pressing position of the press head, that is, the pressing state, and feeds back to the control system in real time. After reaching the set pressing position, the control system receives the signal and issues a command to the hydraulic mechanism to lift up according to the settings, thus completing the lifting process of the press.

[0014] The beneficial effects of this utility model are:

[0015] This solution uses a hydraulic cylinder as power to perform cold press-fitting of the bearing inner ring. The press-fitting position is precisely aligned, and there will be no misalignment after press-fitting. The process saves installation steps, the bearing inner ring does not need to be preheated, and the installation steps are simpler. It simplifies the press-fitting operation and has a good press-fitting effect, solving the problem of complex press-fitting operation and easy misalignment of the current main bevel gear bearings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of an embodiment of the present utility model. Figure 1 ;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a structural diagram of an embodiment of the present utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0021] In the diagram, 1-hydraulic mechanism; 2-pressure head; 3-detection sensor assembly; 4-positioning plate; 5-operation button; 6-control system; 7-hydraulic station; 8-tooling; 9-pressing platform; 10-frame; 11-sensor; 12-slide bar; 13-slide groove; 14-sliding base; 15-positioning groove; 16-guide groove; 17-bevel gear. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0025] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. 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 a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1-3As shown, the axle main bevel gear bearing press machine includes a frame 10 and a hydraulic mechanism 1. The hydraulic mechanism 1 is equipped with a hydraulic station 7, which is located on a single layer at the bottom of the frame 10. A pressing platform 9 is provided at the top of the frame 10. The hydraulic mechanism 1 is located on the pressing platform 9. The hydraulic mechanism 1 includes a main body and a hydraulic cylinder located within the main body. The pressing head 2 of the hydraulic cylinder protrudes downward. The hydraulic mechanism 1 includes a downward-facing pressing head 2. A positioning plate 4 and a tooling 8 are provided on the pressing platform 9. The positioning plate 4 includes a positioning groove 15. The tooling 8 cooperates with the positioning groove 15. The positioning groove 15 is located directly below the pressing head 2. A detection sensor assembly 3 is provided on the outer wall of the hydraulic mechanism 1. The detection sensor assembly 3 is used to detect the pressing state of the pressing head 2.

[0027] Figure 3 for Figure 1 The structural diagram after removing the tooling is intended to clearly show the structure of the positioning plate 4.

[0028] Figure 4 for Figure 1 A diagram illustrating the usage status.

[0029] The detection sensor assembly 3 includes a sliding base 14, on which a groove 13 is provided along the longitudinal direction. The pressure head 2 is connected to a sliding rod 12, the end of which is slidably engaged with the groove 13. Several sensors 11 for detecting the position of the sliding rod 12 are provided on the sliding base 14.

[0030] The slide bar 12 is set in the horizontal direction.

[0031] The positioning plate 4 is provided with a guide slot 16 that communicates with the positioning groove 15. The guide slot 16 is used for the tooling 8 to slide into the positioning groove 15.

[0032] The frame 10 is equipped with a control system 6 and operation buttons 5. The control system 6 is connected to the hydraulic mechanism 1 and the detection sensor assembly 3.

[0033] The control system 6 is used to enable communication between the hydraulic mechanism 1 and the detection sensor assembly 3. The operation button 5, in conjunction with the control system 6, is used to control and set the hydraulic mechanism 1 and the detection sensor assembly 3.

[0034] The operator first places the inner ring of the bearing on fixture 8, and then places the main bevel gear (i.e. Figure 4 Insert the bevel gear 17 into the fixture 8, push the fixture 8 into the pressing position (i.e., the positioning groove 15) along the guide groove 16, press the start operation button 5, the hydraulic cylinder drives the pressing head 2 to press down, after pressing into place, the hydraulic cylinder lifts up and pushes the fixture 8 back to the material release position to complete the pressing.

[0035] After pressing the operation button 5, the control system 6 gives the hydraulic mechanism 1 a command to press down, and the machine head presses down; the detection sensor assembly 3 sets sensors 11 at multiple positions to detect the position of the slide bar 12, indirectly detecting the pressing position of the press head 2, that is, the pressing state, and feeding it back to the control system 6 in real time. After reaching the set pressing position, the control system 6 receives the signal and gives the hydraulic mechanism 1 a command to lift up according to the setting, thus completing the lifting process of the press fitting.

[0036] The beneficial effects of this utility model are:

[0037] This solution uses a hydraulic cylinder as power to perform cold press-fitting of the bearing inner ring. The press-fitting position is precisely aligned, and there will be no misalignment after press-fitting. The process saves installation steps, the bearing inner ring does not need to be preheated, and the installation steps are simpler. It simplifies the press-fitting operation and has a good press-fitting effect, solving the problem of complex press-fitting operation and easy misalignment of the current main bevel gear bearings.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A press-fitting machine for main bevel gear bearings of a vehicle axle, characterized in that, The device includes a frame and a hydraulic mechanism. A pressing platform is provided on the top of the frame, and the hydraulic mechanism is set on the pressing platform. The hydraulic mechanism includes a downward pressing head. A positioning plate and tooling are provided on the pressing platform. The positioning plate includes a positioning groove, which is located directly below the pressing head. A detection sensor assembly is provided on the outer wall of the hydraulic mechanism. The detection sensor assembly is used to detect the pressing state of the pressing head.

2. The axle main bevel gear bearing press-fitting machine according to claim 1, characterized in that, The detection sensor assembly includes a sliding base with a longitudinal groove on the sliding base. The pressure head is connected to a sliding rod, the end of which slides in cooperation with the groove. The sliding base is provided with a plurality of sensors for detecting the position of the sliding rod.

3. The axle main bevel gear bearing press-fitting machine according to claim 2, characterized in that, The slide bar is set in a horizontal direction.

4. The axle main bevel gear bearing press-fitting machine according to claim 1, characterized in that, The positioning plate is provided with a guide slot that communicates with the positioning groove, and the guide slot is used for the tooling to slide into the positioning groove.

5. The axle main bevel gear bearing press-fitting machine according to claim 1, characterized in that, The frame is equipped with a control system and operation buttons, and the control system is communicatively connected to the hydraulic mechanism and detection sensors.

Images