A taper roller bearing assembly apparatus
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI SANLI BEARINGS
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-23
AI Technical Summary
Existing tapered roller bearing assembly equipment cannot dynamically adjust the loading strategy according to the actual fit during the press-fitting process. This leads to the continued press-fitting even when components are misaligned or have deviations, which can easily result in misfitting, stress concentration, or assembly failure.
The system combines a guiding component and a cleaning component. The guiding component uses a sensing plate and pressure sensor to detect the assembly angle and pressure in real time, ensuring alignment before pressing. The cleaning component uses a fan and collection pipe to remove impurities before pressing, ensuring the contact area is clean.
It improves assembly accuracy, avoids misalignment and damage caused by angular deviation, prevents premature wear caused by foreign objects, and enhances the reliability and success rate of assembly.
Smart Images
Figure CN224396959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tapered roller bearing assembly technology, and in particular to a tapered roller bearing assembly equipment. Background Technology
[0002] Tapered roller bearings are rolling bearings capable of simultaneously withstanding radial and axial forces. Their performance largely depends on assembly precision, particularly the coaxiality, interference fit, preload, and geometric alignment between the inner and outer rings and the roller assembly. To ensure these parameters meet design requirements during assembly, specialized bearing assembly equipment is required, with press-fitting equipment being a core component. The press-fitting equipment is responsible for gradually pressing the inner and outer rings and roller assembly together under controlled force, displacement, and alignment, achieving a precise fit between the components.
[0003] Existing tapered roller bearing assembly equipment typically performs press-fitting operations according to a preset fixed pressing force or displacement stroke during the press-fitting process. It cannot adjust the loading strategy in a timely manner according to the changes in the actual fit process. When the bearing components are not fully aligned or there are slight deviations, the press-fitting action may still continue, resulting in misalignment, stress concentration or press-fitting failure. Utility Model Content
[0004] Therefore, it is necessary to provide a tapered roller bearing assembly device that addresses the problem that existing tapered roller bearing assembly equipment typically performs press fitting according to preset pressing force or displacement stroke, lacks the ability to dynamically adjust the loading strategy based on the actual fit condition, and continues press fitting even if the components are not aligned or have deviations, which can easily lead to misalignment, stress concentration or assembly failure.
[0005] A tapered roller bearing assembly device includes: a press machine, wherein a press base is fixedly installed inside the press machine, and an electric push rod is fixedly installed on the top of the press machine; and a guide assembly mechanism, which is disposed on the outside of the press base for aligning and guiding the tapered roller bearing during assembly; wherein the guide assembly mechanism includes a press rod fixedly installed on the output end of the electric push rod, a guide assembly is disposed on the outside of the press base, and a cleaning assembly is disposed on the top of the press base.
[0006] The guiding assembly includes a guide frame fixedly installed on the top of the pressing base. A contact plate is provided inside the guide frame. A rotating block is fixedly installed at the bottom of the contact plate. The rotating block is rotatably connected to the inner wall of the guide frame. Two sensing pressure plates are provided at the bottom of the contact plate. Both sensing pressure plates are fixedly connected to the bottom wall of the guide frame.
[0007] The two sensing pressure plates are located on both sides of the rotating block, and the top edge of the inner wall of the guide frame is set as a slope.
[0008] A rubber ring is fixedly installed on the outer side of the guide frame, and the outer side of the rubber ring is fixedly connected to the inner wall of the guide frame.
[0009] A movable rod is slidably installed at the bottom of the pressing rod. One end of the movable rod, located inside the pressing rod, is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the pressing rod.
[0010] The movable rod is located at the top of the contact plate, and the bottom edge of the movable rod is set as a bevel.
[0011] A pressure sensor is fixedly installed inside the press rod, and the pressure sensor is located at the top of the movable rod.
[0012] The cleaning assembly includes a cleaning cover that is slidably fitted onto the outside of the output end of the electric push rod, and the cleaning cover is located on top of the guide frame.
[0013] Two electric slide rails are fixedly installed on one side of the press machine, and the output ends of the two electric slide rails are fixedly connected to both sides of the cleaning cover.
[0014] Fans are fixedly installed on both sides of the inside of the cleaning hood, infrared sensors are fixedly installed on the inner wall of the cleaning hood, and a collection pipe is fixedly installed on one side of the cleaning hood, with one end of the collection pipe extending into the inside of the cleaning hood.
[0015] Beneficial effects
[0016] 1. The guide assembly allows for accurate confirmation of the tapered roller bearing's assembly angle before press-fitting, ensuring alignment of the inner and outer rings with the roller assembly. Only after alignment is achieved will the electric push rod drive the press-fitting rod downwards, preventing misalignment and damage caused by angular deviations. A cleaning assembly located at the top of the press-fitting base removes impurities and oil from the press-fitting area before assembly, improving assembly accuracy and preventing premature wear caused by foreign objects.
[0017] 2. Before the assembly operation starts, the cleaning hood is lowered to clean the guide frame and the parts to be pressed. The blower is used to form a directional airflow during the cleaning process to force-blow the guide frame and the tapered roller bearing assembly above it, ensuring that the key contact areas are clean before pressing. The collection pipe is connected to the external negative pressure device, which can quickly suck impurities into the pipe while the blower blows them away, preventing foreign objects from falling back into the guide area. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the guiding assembly mechanism of this utility model;
[0021] Figure 3 This is a schematic diagram of the internal structure of the guide frame of this utility model;
[0022] Figure 4 This is a schematic diagram of the internal structure of the press rod of this utility model;
[0023] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model.
[0024] Figure label:
[0025] 100. Press fitting machine; 110. Press fitting base; 200. Electric push rod; 300. Guide assembly mechanism; 310. Press fitting rod; 311. Electric slide rail; 320. Guide assembly; 321. Guide frame; 322. Contact plate; 323. Rotating block; 324. Induction pressure plate; 325. Rubber ring; 326. Movable rod; 327. Spring; 328. Pressure sensing plate; 330. Cleaning assembly; 331. Cleaning cover; 332. Fan; 333. Infrared sensor; 334. Collection pipe. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] The following is combined with Figures 1-5 This invention describes the tapered roller bearing assembly equipment.
[0028] In one embodiment, a tapered roller bearing assembly device includes: a press machine 100, a press base 110 fixedly installed inside the press machine 100, and an electric push rod 200 fixedly installed on the top of the press machine 100; a guide assembly mechanism 300, which is disposed on the outside of the press base 110 for confirming alignment during tapered roller bearing assembly; wherein the guide assembly mechanism 300 includes a press rod 310 fixedly installed at the output end of the electric push rod 200, a guide assembly 320 disposed on the outside of the press base 110, and a cleaning assembly 330 disposed on the top of the press base 110.
[0029] In this embodiment, by setting the guide component 320, the assembly angle of the tapered roller bearing can be accurately confirmed before press-fitting, ensuring that the geometric alignment of the inner ring, outer ring, and roller assembly meets the assembly requirements. Only after the alignment is achieved will the electric push rod 200 drive the press-fitting rod 310 to continue pressing down, thereby effectively avoiding forced press-fitting caused by initial angle deviation and reducing the risk of misalignment and assembly damage. The cleaning component 330 is set on the top of the press-fitting seat 110, which can clean the press-fitting seat 110 and the tapered roller bearing to be assembled before each assembly, removing surface impurities, oil stains, or particles, further improving the cleanliness of the mating surfaces and the assembly accuracy, and preventing early wear caused by foreign matter inclusions.
[0030] It should be noted that existing tapered roller bearing press-fitting equipment typically includes basic components such as a press-fitting machine 100, a press-fitting base 110, an electric push rod 200, and a press-fitting rod 310. A guide assembly 320 is used to check and confirm the assembly angles and alignment of each component of the tapered roller bearing before the press-fitting action is performed, ensuring that the components are aligned before starting the press-fitting process. In addition, a cleaning assembly 330 is installed on the top of the press-fitting base 110 to pre-clean the components to be pressed and their contact interfaces, preventing impurities from affecting the fitting accuracy or causing abnormalities in the assembly process. These are all peripheral additions and will not interfere with the normal movement path or operating space of the press-fitting base 110, the electric push rod 200, and the press-fitting rod 310. Meanwhile, the guide assembly 320 completes its task after the angle confirmation, and the cleaning assembly 330 also completes its action before the press-fitting begins; neither will conflict with the main press-fitting process, thus not affecting the normal use of the equipment.
[0031] like Figure 2 , Figure 3 and Figure 4As shown, the guide assembly 320 includes a guide frame 321 fixedly installed on the top of the press base 110. A contact plate 322 is provided inside the guide frame 321. A rotating block 323 is fixedly installed at the bottom of the contact plate 322. The rotating block 323 is rotatably connected to the inner wall of the guide frame 321. Two sensing pressure plates 324 are provided at the bottom of the contact plate 322. Both sensing pressure plates 324 are fixedly connected to the bottom wall of the guide frame 321.
[0032] In this embodiment, the guide frame 321 can accurately guide and position the tapered roller bearing before press-fitting, avoiding misalignment during assembly due to misalignment or incorrect angle. The contact plate 322 is located inside the guide frame 321 and is rotatably connected to the inner wall of the guide frame 321 through the rotating block 323 at the bottom. It has a certain range of automatic adjustment capability and can adapt to different angles and slight displacements. When the pressure values sensed by the two sensing pressure plates 324 are basically the same, the system can determine that the bearing assembly has been evenly placed on the contact plate 322 and the angle is aligned. Conversely, if the pressure difference is too large, it is considered that the component is not correctly aligned, and the press-fitting action will be paused. After manual or automatic adjustment, it will be re-checked and confirmed. This can effectively avoid blindly press-fitting when the component is not fully in place, thereby reducing the probability of misalignment, press-fitting damage, and subsequent assembly defects.
[0033] Two sensing pressure plates 324 are located on both sides of the rotating block 323, and the top edge of the inner wall of the guide frame 321 is set as a slope.
[0034] In this embodiment, the two sensing pressure plates 324 can detect the force state at both ends of the bottom of the contact plate 322 in real time, thereby determining whether the tapered roller bearing is placed symmetrically in the guide frame 321. The top edge of the inner wall of the guide frame 321 is set as a sloped structure, which helps to play a self-guiding and preliminary limiting role when placing the bearing assembly.
[0035] It should be noted that the sensing plate 324 is a thin structural component, on which pressure sensing elements, such as resistance strain gauges, piezoelectric sensing films or capacitive pressure sensing units, can be integrated. By sensing the minute vertical force changes applied to its surface when the assembly comes into contact, it outputs corresponding electrical signals or displacement signals in real time for feedback to the control system for judgment.
[0036] A rubber ring 325 is fixedly installed on the outer side of the guide frame 321, and the outer side of the rubber ring 325 is fixedly connected to the inner wall of the guide frame 321.
[0037] In this embodiment, the elastic buffering characteristics of the rubber ring 325 can provide a certain displacement tolerance for the small angular swing of the contact plate 322 and the rotating block 323 within the guide frame 321, thereby ensuring that the contact plate 322 can rotate slightly or automatically fine-tune according to the actual assembly angle or slight deviation during the assembly process, avoiding alignment failure caused by jamming or rigid fixed position.
[0038] A movable rod 326 is slidably installed at the bottom of the pressing rod 310. One end of the movable rod 326 located inside the pressing rod 310 is fixedly connected to a spring 327, and the other end of the spring 327 is fixedly connected to the inner wall of the pressing rod 310.
[0039] In this embodiment, by setting a spring 327, the movable rod 326 can be given a certain axial elastic extension and contraction capacity during the pressing process. When the pressing rod 310 moves downward and contacts the tapered roller bearing to be assembled, if it encounters slight resistance or the assembly parts are not fully aligned, the movable rod 326 can generate a buffer stroke under the action of the spring 327 to prevent forced pressing under misjudgment.
[0040] The movable rod 326 is located at the top of the contact plate 322, and the bottom edge of the movable rod 326 is set as a bevel.
[0041] In this embodiment, the inclined structure at the bottom edge of the movable rod 326 has a certain self-guiding capability, which can finely adjust and guide the position of the contact plate 322 during the contact process.
[0042] A pressure sensor 328 is fixedly installed inside the press rod 310, and the pressure sensor 328 is located at the top of the movable rod 326.
[0043] In this embodiment, during the initial stage of assembly, when the movable rod 326 first contacts the contact plate 322, the pressure sensing plate 328 can accurately detect the initial load at the moment of contact, thereby determining whether the preset assembly alignment pressure threshold has been reached. If the two sensing pressure plates 324 show a large pressure difference between the left and right sides or unstable pressure, the pressing operation can be paused based on this and the detection results of the guide component 320, so as to avoid blindly applying pressure when not fully aligned.
[0044] It should be noted that the pressure sensing plate 328 is used to detect the change in axial load on the movable rod 326 during the pressing process. Its body is a thin sheet structure and is made of a sensing material with strain response characteristics, such as a piezoelectric ceramic sheet, a strain resistance film, a flexible capacitor sheet or other miniature force-sensitive elements.
[0045] like Figure 2 , Figure 4 and Figure 5As shown, the cleaning assembly 330 includes a cleaning cover 331 that is slidably sleeved on the outside of the output end of the electric push rod 200, and the cleaning cover 331 is located on top of the guide frame 321.
[0046] In this embodiment, before the assembly operation starts, the cleaning cover 331 moves down to clean the guide frame 321 and the parts to be pressed. Before the pressing begins, the cleaning cover 331 slides to a clearance position so as not to interfere with the subsequent pressing action.
[0047] Two electric slide rails 311 are fixedly installed on one side of the press machine 100, and the output ends of the two electric slide rails 311 are fixedly connected to both sides of the cleaning cover 331 respectively.
[0048] In this embodiment, the electric slide rail 311 can drive the cleaning cover 331 to slide along a set path, so that it covers or leaves the top area of the guide frame 321. Before the assembly begins, the cleaning cover 331 can be precisely moved above the guide frame 321 to perform fixed-point cleaning and shielding. After the cleaning task is completed, the electric slide rail 311 will smoothly move the cleaning cover 331 out of the pressing path to ensure that it will not interfere with subsequent pressing actions.
[0049] Fans 332 are fixedly installed on both sides of the inside of the cleaning cover 331. Infrared sensors 333 are fixedly installed on the inner wall of the cleaning cover 331. A collection pipe 334 is fixedly installed on one side of the cleaning cover 331, and one end of the collection pipe 334 extends into the inside of the cleaning cover 331.
[0050] In this embodiment, the blower 332 is used to generate a directional airflow during the cleaning process to forcefully blow away dust, metal shavings, or other small impurities adhering to the guide frame 321 and the tapered roller bearing assembly above it, quickly removing them and ensuring that the key contact areas are clean before pressing. The collection pipe 334 is connected to an external negative pressure device, which can quickly suck impurities into the pipe while the blower 332 blows them away, preventing foreign objects from falling back into the guide area and reducing the risk of secondary contamination. The infrared sensor 333 is used to sense in real time whether a tapered roller bearing assembly has been placed inside the guide frame 321. When an assembly is detected entering the cleaning area, the infrared sensor 333 will trigger the blower 332 to start and simultaneously control the collection pipe 334 to start its suction action, achieving simultaneous cleaning and collection of impurity particles.
[0051] It should be noted that the infrared sensor 333 is a non-contact detection device. Its main function is to detect in real time whether a tapered roller bearing assembly has been placed inside the guide frame 321 during the operation of the cleaning hood 331. The infrared sensor 333 can be a reflective infrared detection module, a modulated infrared beam module, or an array-type infrared sensor, etc. Its sensing principle is mainly based on changes in infrared reflection intensity or obstruction. When a workpiece with a certain infrared reflectivity or obstruction volume, such as a bearing, appears in the detection area, the infrared sensor 333 will generate a significant signal change, and a preset threshold will be used to determine whether the assembly has entered the cleaning area.
[0052] Working principle: The tapered roller bearing assembly to be assembled is placed inside the guide assembly 320. The inclined edge of the guide frame 321 guides the bearing to automatically center and position. The contact plate 322 can achieve a small angle adjustment with the cooperation of the rotating block 323 and the rubber ring 325, thereby adapting to the initial placement posture of the bearing. At this time, the two sensing pressure plates 324 sense whether the left and right pressures are balanced in real time. The movable rod 326 presses down on the contact plate 322 and achieves self-guiding fine adjustment through the bottom slope. If the alignment is confirmed, the electric push rod 200 starts to drive the pressing rod 310 to press down slowly. During the pressing process, the pressure sensing plate 328 monitors the axial force change of the movable rod 326. If an abnormal loading is detected or the sensing pressure plate 324 reports a pressure difference, the pressing will be paused and wait for manual or automatic correction. Before pressing, the cleaning component 330 is triggered by the infrared sensor 333. The electric slide rail 311 moves the cleaning cover 331 above the guide frame 321. The fan 332 starts to perform directional blowing. The collection pipe 334 simultaneously sucks up floating dust and particles. After completion, the cleaning cover 331 retreats to the avoidance position.
[0053] It should be noted that the electric actuator, induction plate, pressure sensor, and fan mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the electric actuator, induction plate, pressure sensor, and fan can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.
[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A tapered roller bearing assembly device, characterized in that, include: A press fitting machine (100) is provided with a press fitting base (110) fixedly installed inside the press fitting machine (100) and an electric push rod (200) fixedly installed on the top of the press fitting machine (100). The guide assembly mechanism (300), used for alignment guidance confirmation during tapered roller bearing assembly, is disposed on the outside of the press-fit base (110); The guide assembly mechanism (300) includes a pressing rod (310) fixedly installed at the output end of the electric push rod (200), a guide assembly (320) is provided on the outside of the pressing seat (110), and a cleaning assembly (330) is provided on the top of the pressing seat (110).
2. The tapered roller bearing assembly equipment according to claim 1, characterized in that, The guide assembly (320) includes a guide frame (321) fixedly installed on the top of the press base (110). A contact plate (322) is provided inside the guide frame (321). A rotating block (323) is fixedly installed at the bottom of the contact plate (322). The rotating block (323) is rotatably connected to the inner wall of the guide frame (321). Two sensing pressure plates (324) are provided at the bottom of the contact plate (322). Both sensing pressure plates (324) are fixedly connected to the bottom wall of the guide frame (321).
3. The tapered roller bearing assembly equipment according to claim 2, characterized in that, The two sensing pressure plates (324) are located on both sides of the rotating block (323), and the top edge of the inner wall of the guide frame (321) is set as a slope.
4. The tapered roller bearing assembly equipment according to claim 2, characterized in that, A rubber ring (325) is fixedly installed on the outer side of the guide frame (321), and the outer side of the rubber ring (325) is fixedly connected to the inner wall of the guide frame (321).
5. The tapered roller bearing assembly equipment according to claim 1, characterized in that, A movable rod (326) is slidably installed at the bottom of the press rod (310). A spring (327) is fixedly connected to one end of the movable rod (326) inside the press rod (310), and the other end of the spring (327) is fixedly connected to the inner wall of the press rod (310).
6. The tapered roller bearing assembly equipment according to claim 5, characterized in that, The movable rod (326) is located at the top of the contact plate (322), and the bottom edge of the movable rod (326) is set as a bevel.
7. The tapered roller bearing assembly equipment according to claim 6, characterized in that, A pressure sensor (328) is fixedly installed inside the press rod (310), and the pressure sensor (328) is located at the top of the movable rod (326).
8. The tapered roller bearing assembly equipment according to claim 1, characterized in that, The cleaning assembly (330) includes a cleaning cover (331) that is slidably sleeved on the outside of the output end of the electric push rod (200), the cleaning cover (331) being located on top of the guide frame (321).
9. The tapered roller bearing assembly equipment according to claim 8, characterized in that, Two electric slide rails (311) are fixedly installed on one side of the press machine (100), and the output ends of the two electric slide rails (311) are fixedly connected to both sides of the cleaning cover (331).
10. The tapered roller bearing assembly equipment according to claim 9, characterized in that, Fans (332) are fixedly installed on both sides of the inside of the cleaning cover (331). An infrared sensor (333) is fixedly installed on the inner wall of the cleaning cover (331). A collection pipe (334) is fixedly installed on one side of the cleaning cover (331), and one end of the collection pipe (334) extends into the inside of the cleaning cover (331).