A knuckle bearing press fitting device

Abstract

The utility model relates to the technical field of knuckle bearing press -mounting, especially a knuckle bearing press -mounting device, its through fixed device to the auxiliary fixation of knuckle main part, through the power of press -mounting device and press into the bearing inner race to the knuckle, and the self replaceable press -mounting part, can press into the bearing inner race of different size required by different size knuckle, through the oil injection device extrude lubricating paste to the installation site, reduced the labor intensity of operator, improved the practicability of device, including fixed device, press -mounting device and oil injection device, press -mounting device installs on the fixed device, oil injection device installs on the fixed device.

Description

Technical Field

[0001] This utility model relates to the technical field of press-fitting steering knuckle bearings, and in particular to a press-fitting device for steering knuckle bearings. Background Technology

[0002] Steering knuckle bearing press-fitting equipment is a key piece of equipment in the automotive parts manufacturing and repair industry for the precise installation of steering knuckle bearings. Its design directly affects the bearing press-fitting quality, production efficiency, and equipment lifespan. In automotive manufacturing, when assembling the front axle assembly, the bearing needs to be mounted on the bottom of the steering knuckle journal. Due to design requirements, the bearing and the bottom of the steering knuckle journal have an interference fit, and the bearing must be flat after assembly. Therefore, the bearing cannot be directly fitted onto the bottom of the steering knuckle journal; auxiliary tools are needed to achieve this assembly process. Before press-fitting, the mounting hole needs to be cleaned to reduce the impact of debris on the installation. Then, the inner ring is pressed in, followed by the filling with lubricating grease. Next, the rolling elements and cage are placed in, and finally, the end cap is placed on top for fixation.

[0003] The existing Chinese utility model patent with application number CN201621026073.9 relates to a steering knuckle bearing press-fitting auxiliary tool, including a base, positioning pin, steering knuckle, support column, support beam, sleeve sliding hole, hollow sleeve, bearing and reinforcing rib, etc., which can solve the problems of low labor efficiency, high labor intensity, waste of manpower, easy wear and tear of tools and safety hazards, and is inexpensive.

[0004] However, in actual use, the above-mentioned device requires manual cleaning of the mounting holes and manual application of lubricant, which increases the labor intensity of the operators. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a steering knuckle bearing press-fitting device that uses a fixing device to assist in fixing the steering knuckle body, uses a press-fitting device to provide power to press the bearing inner ring into the steering knuckle, and has replaceable press-fitting components. It can press in bearing inner rings of different sizes required for steering knuckles of different sizes, and uses an oil injection device to squeeze lubricant to the installation position. This reduces the labor intensity of operators and improves the practicality of the device.

[0006] This utility model discloses a steering knuckle bearing press-fitting device, comprising a fixing device, a press-fitting device, and an oil injection device. The press-fitting device is mounted on the fixing device, and the oil injection device is also mounted on the fixing device. The fixing device provides auxiliary fixation to the steering knuckle body, and the press-fitting device provides power to press the bearing inner ring into the steering knuckle. The press-fitting components are replaceable, allowing for the pressing of bearing inner rings of different sizes required for steering knuckles of different sizes. The oil injection device squeezes lubricant to the installation location, reducing the labor intensity of operators and improving the practicality of the device.

[0007] Preferably, the fixing device includes a frame, a support plate, an electric cylinder, a fixing mold, and limiting rods. A bearing groove is provided in the middle of the frame, and a set of support plates is provided on the left and right sides of the bearing groove. A set of electric cylinders is installed on the front and back of the upper end face of the support plate, respectively. The moving end of the electric cylinder extends through the upper end face of the support plate to the lower side of the support plate and connects with the fixing mold. Multiple sets of limiting rods are provided on the upper end face of the fixing mold, extending through the support plate to the upper side of the support plate. The steering knuckle body is placed on the lower side between the two sets of support plates. Then, the electric cylinder is controlled to extend, causing the fixing mold to fall and press against the steering knuckle, thereby assisting in fixing the steering knuckle body. The multiple sets of limiting rods limit the lifting and lowering process of the fixing mold, reducing the vibration amplitude of the fixing mold during lifting and lowering, and improving the stability and practicality of the device.

[0008] Preferably, it also includes a limiting sleeve seat. A set of limiting sleeve seats is provided on the upper end face of the support plate at the position corresponding to the multiple sets of limiting light rods. The multiple sets of limiting light rods pass through the multiple sets of limiting sleeve seats. The limiting effect on the main body of the limiting light rod is increased by the multiple sets of limiting sleeve seats, which further improves the stability and practicality of the equipment during operation.

[0009] Preferably, the pressing device includes a gantry, a pressing electric cylinder, a pressing tube, an annular connecting seat, and a pressing die sleeve. A gantry is mounted on the upper end face of the frame, and a pressing electric cylinder is mounted in the middle of the upper end face of the gantry. The moving end of the pressing electric cylinder extends through the upper end face of the gantry to the lower side of the gantry and connects to the pressing tube. Multiple sets of pressing tubes are provided according to different bearing sizes. An annular connecting seat is provided on the lower side of the pressing tube, and threads are provided on the outer side of the annular connecting seat. Threads are provided on the inner side of the pressing die sleeve, enabling it to connect with the annular connecting seat. An annular connecting seat is provided in the lower part of the pressing die sleeve. The shaped stop block limits the highest position of the press-fitting mold sleeve on the annular connecting seat; a suitable press-fitting tube is selected according to the size of the press-fitting bearing and rotated and fixed on the annular connecting seat. The installation position of the press-fitting mold sleeve is limited by the annular stop block in the lower part of the press-fitting mold sleeve, and downward pressure is provided to the press-fitting mold sleeve. By controlling the extension of the press-fitting electric cylinder, the press-fitting mold sleeve is driven to fall, thereby pressing the inner ring of the bearing into the steering knuckle hole. The threaded connection between the annular connecting seat and the press-fitting mold sleeve allows the equipment to adapt to the installation of bearings of different sizes, improving the practicality of the device.

[0010] Preferably, the oil injection device includes an annular chamber, an extrusion frame, extrusion holes, and conveying holes. The annular chamber is provided at the lower part of the press-fit die sleeve, and the extrusion frame is provided on the inner side of the lower end face of the press-fit die sleeve. Multiple sets of extrusion holes are evenly installed on the lower end face of the extrusion frame, and multiple sets of conveying holes are evenly arranged in the extrusion frame. The upper part of the conveying hole communicates with the interior of the annular chamber, and the lower part of the conveying hole communicates with the lower extrusion hole. By applying pressure to the annular chamber, the lubricant is extruded from the conveying holes and extrusion holes, so that the lubricant is evenly distributed on the bearing inner ring, rolling elements, and cage, reducing the labor intensity of the operator and improving the practicality of the device.

[0011] Preferably, the device also includes air outlets and a fan. Multiple sets of air outlets are evenly arranged on the bottom side of the press-fitting pipe, and a fan is installed on the side of the gantry. The output end of the fan is connected to the inside of the press-fitting pipe through a high-pressure hose. Before press-fitting, the press-fitting pipe is controlled to fall so that the air outlets are inserted into the mounting holes. Then, the fan is turned on to pressurize the outside air and deliver it into the press-fitting pipe, where it is sprayed out through the multiple sets of air outlets. This helps to clean the mounting holes, reducing the impact of debris residue in the mounting holes on the inner ring press-fitting and improving the practicality of the device.

[0012] Preferably, the device also includes a storage tank, a paste delivery pump, and a quick connector. The storage tank and the paste delivery pump are installed on the upper surface of the gantry. The input end of the paste delivery pump is connected to the bottom of the storage tank. A quick connector is provided on the side of the pressing mold sleeve, and the quick connector is connected to the inside of the annular chamber. The output end of the paste delivery pump is connected to the quick connector through a high-pressure pipeline. The storage tank stores the lubricant, and the paste delivery pump delivers the lubricant to the inside of the annular chamber and increases the pressure in the annular chamber to extrude the lubricant through multiple sets of extrusion holes. The quick connector facilitates the quick installation and removal of pipelines and the replacement of the pressing mold sleeve, improving the practicality of the device.

[0013] Preferably, it also includes a bolt sealing head, with an internal threaded hole provided on the lower end face of the press-fitting tube, and the bolt sealing head is installed in the internal threaded hole of the press-fitting tube; the bolt sealing head makes it easy to open the bottom of the press-fitting tube, discharge the debris and impurities in the press-fitting tube, facilitate the operator to maintain the equipment, and improve the practicality of the device.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the main body of the steering knuckle is assisted in fixing by the fixing device, the bearing inner ring is pressed into the steering knuckle by the power provided by the pressing device, and the pressing parts are replaceable. It can press in bearing inner rings of different sizes required for steering knuckles of different sizes. The lubricating device squeezes out the lubricant to the installation part, which reduces the labor intensity of the operator and improves the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a first cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the second cross-sectional structure of this utility model; Figure 4 This is a partially enlarged structural schematic diagram of the present invention; The following are labels in the attached diagram: 1. Frame; 2. Support plate; 3. Electric cylinder; 4. Fixed mold; 5. Limiting rod; 6. Limiting sleeve seat; 7. Gantry; 8. Pressing electric cylinder; 9. Pressing pipe; 10. Annular connecting seat; 11. Pressing mold sleeve; 12. Annular chamber; 13. Extrusion frame; 14. Extrusion hole; 15. Conveying hole; 16. Air outlet; 17. Fan; 18. Paste storage tank; 19. Paste transfer pump; 20. Quick connector; 21. Bolt sealing head. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] Example 1 Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the pressing device is installed on the fixing device, and the oil injection device is installed on the fixing device; First, place the steering knuckle body on the lower side between the two sets of support plates 2. Then, control the electric cylinder 3 to extend and drive the fixed mold 4 to fall and press it onto the steering knuckle, thereby assisting in fixing the steering knuckle body. Then, control the pressing tube 9 to fall so that the air outlet 16 is inserted into the mounting hole. Then, turn on the fan 17 to pressurize the external air and deliver it to the inside of the pressing tube 9, where it is sprayed out by multiple sets of air outlets 16, thereby assisting in cleaning the mounting hole. Then, select the appropriate pressing tube 9 according to the size of the pressing bearing and rotate it to fix it on the annular connecting seat 10. The installation position of the pressing mold sleeve 11 is limited by the annular stop block at the lower part of the pressing mold sleeve 11, and downward pressure is provided to the pressing mold sleeve 11. Control the pressing electric cylinder 8 to extend and drive the pressing mold sleeve 11 to fall, thereby pressing the bearing inner ring into the steering knuckle hole. Then, by applying pressure to the annular chamber 12, the lubricant is squeezed out from the conveying hole 15 and the extrusion hole 14, so that the lubricant is evenly distributed on the bearing inner ring, rolling elements, and cage. The fixing device includes a frame 1, a support plate 2, an electric cylinder 3, a fixing mold 4, and a limiting light rod 5. A bearing groove is provided in the middle of the frame 1. A set of support plates 2 are respectively provided on the left and right sides of the bearing groove. A set of electric cylinders 3 are respectively installed on the front and back of the upper end face of the support plate 2. The moving end of the electric cylinder 3 passes through the upper end face of the support plate 2 and extends to the lower side of the support plate 2 to connect with the fixing mold 4. Multiple sets of limiting light rods 5 are provided on the upper end face of the fixing mold 4. Multiple sets of limiting light rods 5 pass through the support plate 2 and extend to the upper side of the support plate 2. It also includes a limiting sleeve seat 6. A set of limiting sleeve seats 6 is respectively provided on the upper end face of the support plate 2 at the position corresponding to the multiple sets of limiting light rods 5. The multiple sets of limiting light rods 5 pass through the multiple sets of limiting sleeve seats 6. The pressing device includes a gantry 7, a pressing electric cylinder 8, a pressing tube 9, an annular connecting seat 10, and a pressing mold sleeve 11. The gantry 7 is installed on the upper end face of the frame 1. The pressing electric cylinder 8 is installed in the middle of the upper end face of the gantry 7. The moving end of the pressing electric cylinder 8 extends through the upper end face of the gantry 7 to the lower side of the gantry 7 and connects with the pressing tube 9. Multiple sets of pressing tubes 9 are provided according to different bearing sizes. An annular connecting seat 10 is provided on the lower side of the pressing tube 9. The outer side of the annular connecting seat 10 is provided with threads. The inner side of the pressing mold sleeve 11 is provided with threads and can connect with the annular connecting seat 10. An annular stop is provided in the lower part of the pressing mold sleeve 11 to limit the highest position of the pressing mold sleeve 11 on the annular connecting seat 10. The oil injection device includes an annular chamber 12, an extrusion frame 13, an extrusion hole 14, and a conveying hole 15. The lower part of the press mold sleeve 11 is provided with an annular chamber 12. The inner side of the lower end face of the press mold sleeve 11 is provided with an extrusion frame 13. Multiple sets of extrusion holes 14 are evenly installed on the lower end face of the extrusion frame 13. Multiple sets of conveying holes 15 are evenly arranged in the extrusion frame 13. The upper part of the conveying hole 15 is connected to the interior of the annular chamber 12, and the lower part of the conveying hole 15 is connected to the lower extrusion hole 14. It also includes air outlets 16 and fans 17. Multiple sets of air outlets 16 are evenly arranged on the bottom side of the press-fitting pipe 9. Fans 17 are installed on the side of the gantry 7. The output end of the fan 17 is connected to the inside of the press-fitting pipe 9 through a high-pressure hose. It also includes a paste storage tank 18, a paste delivery pump 19, and a quick connector 20. The paste storage tank 18 and the paste delivery pump 19 are installed on the upper surface of the gantry 7. The input end of the paste delivery pump 19 is connected to the bottom of the paste storage tank 18. A quick connector 20 is provided on the side of the pressing mold sleeve 11. The quick connector 20 is connected to the inside of the annular chamber 12. The output end of the paste delivery pump 19 is connected to the quick connector 20 through a high-pressure pipeline. The main body of the steering knuckle is assisted in fixing through a fixing device. The inner ring of the bearing is pressed into the steering knuckle by the power provided by the pressing device. The pressing device itself has replaceable pressing parts and can press in the inner ring of the bearing of different sizes required for steering knuckles of different sizes. The lubricating paste is squeezed out to the installation position through the oil injection device, which reduces the labor intensity of the operator and improves the practicality of the device.

[0018] like Figures 1 to 4 As shown, this utility model discloses a steering knuckle bearing press-fitting device. During operation, the steering knuckle body is first placed on the lower side between two sets of support plates 2. Then, the electric cylinder 3 extends, causing the fixing mold 4 to fall and press onto the steering knuckle, thus assisting in fixing the steering knuckle body. Next, the press-fitting tube 9 is lowered so that the air outlet 16 is inserted into the mounting hole. Then, the blower 17 is turned on to pressurize external air and deliver it into the press-fitting tube 9, where it is ejected through multiple air outlets 16, thus assisting in cleaning the mounting hole. Finally, the size of the press-fitted bearing is selected... A suitable press-fit tube 9 is rotated and fixed on the annular connecting seat 10. The installation position of the press-fit mold sleeve 11 is limited by the annular stop block at the lower part of the press-fit mold sleeve 11, and downward pressure is provided to the press-fit mold sleeve 11. By controlling the extension of the press-fit electric cylinder 8, the press-fit mold sleeve 11 is driven to fall, thereby pressing the bearing inner ring into the steering knuckle hole. Then, by applying pressure to the annular chamber 12, the lubricant is squeezed out from the conveying hole 15 and the extrusion hole 14, so that the lubricant is evenly distributed on the bearing inner ring, rolling elements and cage.

[0019] The paste delivery pump 19, fan 17, electric cylinder 3, and pressing electric cylinder 8 of the steering knuckle bearing press-fitting device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steering knuckle bearing press-fitting device; characterized in that, It includes a fixing device, a pressing device and an oil injection device. The pressing device is installed on the fixing device and the oil injection device is installed on the fixing device. The oil injection device includes an annular chamber (12), an extrusion frame (13), an extrusion hole (14) and a conveying hole (15). The lower part of the pressing mold sleeve (11) is provided with an annular chamber (12). The inner side of the lower end face of the pressing mold sleeve (11) is provided with an extrusion frame (13). Multiple sets of extrusion holes (14) are evenly installed on the lower end face of the extrusion frame (13). Multiple sets of conveying holes (15) are evenly arranged in the extrusion frame (13). The upper part of the conveying hole (15) is connected to the interior of the annular chamber (12), and the lower part of the conveying hole (15) is connected to the lower extrusion hole (14).

2. The steering knuckle bearing press-fitting device as described in claim 1, characterized in that, The fixing device includes a frame (1), a support plate (2), an electric cylinder (3), a fixing mold (4), and a limiting light rod (5). A bearing groove is provided in the middle of the frame (1), and a set of support plates (2) are provided on the left and right sides of the bearing groove. A set of electric cylinders (3) are installed on the front and back of the upper end face of the support plate (2). The moving end of the electric cylinder (3) extends through the upper end face of the support plate (2) to the lower side of the support plate (2) and connects with the fixing mold (4). Multiple sets of limiting light rods (5) are provided on the upper end face of the fixing mold (4). Multiple sets of limiting light rods (5) extend through the support plate (2) to the upper side of the support plate (2).

3. The steering knuckle bearing press-fitting device as described in claim 2, characterized in that, It also includes a limiting sleeve seat (6). A set of limiting sleeve seats (6) is provided on the upper end of the support plate (2) at the position corresponding to the multiple sets of limiting light rods (5). The multiple sets of limiting light rods (5) pass through the multiple sets of limiting sleeve seats (6).

4. The steering knuckle bearing press-fitting device as described in claim 3, characterized in that, The pressing device includes a gantry (7), a pressing electric cylinder (8), a pressing tube (9), an annular connecting seat (10), and a pressing mold sleeve (11). The gantry (7) is installed on the upper end face of the frame (1). The pressing electric cylinder (8) is installed in the middle of the upper end face of the gantry (7). The moving end of the pressing electric cylinder (8) extends through the upper end face of the gantry (7) to the lower side of the gantry (7) and connects with the pressing tube (9). Multiple sets of pressing tubes (9) are provided according to different bearing sizes. An annular connecting seat (10) is provided on the lower side of the pressing tube (9). Threads are provided on the outer side of the annular connecting seat (10). Threads are provided on the inner side of the pressing mold sleeve (11) and it can connect with the annular connecting seat (10). An annular stop is provided in the lower part of the pressing mold sleeve (11) to limit the highest position of the pressing mold sleeve (11) on the annular connecting seat (10).

5. The steering knuckle bearing press-fitting device as described in claim 4, characterized in that, It also includes an air outlet (16) and a fan (17). Multiple sets of air outlets (16) are evenly arranged on the bottom side of the press-fitting pipe (9). A fan (17) is installed on the side of the gantry (7). The output end of the fan (17) is connected to the inside of the press-fitting pipe (9) through a high-pressure hose.

6. The steering knuckle bearing press-fitting device as described in claim 5, characterized in that, It also includes a paste storage tank (18), a paste delivery pump (19) and a quick connector (20). The paste storage tank (18) and the paste delivery pump (19) are installed on the upper surface of the gantry (7). The input end of the paste delivery pump (19) is connected to the bottom of the paste storage tank (18). A quick connector (20) is provided on the side of the pressing mold sleeve (11). The quick connector (20) is connected to the inside of the annular chamber (12). The output end of the paste delivery pump (19) is connected to the quick connector (20) through a high-pressure pipeline.

7. A steering knuckle bearing press-fitting device as described in claim 6, characterized in that, It also includes a bolt sealing head (21), and an internal threaded hole is provided on the lower end face of the press-fitting tube (9). The bolt sealing head (21) is installed in the internal threaded hole of the press-fitting tube (9).

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