Press fitting device for gear and pin shaft of steering gear box

Abstract

The utility model discloses a press-fitting device for a gear and a pin shaft of a steering gear box, which relates to the technical field of automobile maintenance and comprises a base, the upper surface of the base is fixedly connected with a fixing frame, the surface of the fixing frame is provided with a press-fitting mechanism, the surface of the base is provided with a pin shaft limiting mechanism, and the surface of the base is provided with a gear clamping component; and the pin shaft limiting mechanism comprises a limiting bottom ring fixed to the upper surface of the base, the inner side of the limiting bottom ring is rotationally connected with a rotary supporting shell, and the top end of the rotary supporting shell is fixedly connected with a limiting mounting plate. The pin shaft limiting mechanism is arranged on the surface of the bottom plate, the pin shaft limiting hole in the surface of the pin shaft limiting plate can be used for limiting a gear shaft, the electric telescopic rod can be used for adjusting and positioning the height of the pin shaft limiting plate, and the auxiliary limiting device is suitable for auxiliary limiting of gear pin shafts with different lengths; and the stability of the pin shaft and the gear in the press fitting process is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair technology, and in particular to a press-fitting device for a steering gear and a pin shaft. Background Technology

[0002] A steering gear, also known as a steering mechanism, is a machine that assists the driver in applying force when turning the steering wheel, reducing the effort required for steering and making driving easier and more convenient. It is mainly divided into rack and pinion steering and worm gear steering. The gears in the steering gear can work with the rack to switch the direction of the left and right wheels.

[0003] Currently, in China, the conventional technology for press-fitting steering gears to pins typically involves manually hammering the gears to secure the connection. However, this method is inefficient, unstable, and prone to hand fatigue or injury, while also failing to guarantee the quality of the press-fitting process. Therefore, we have designed a press-fitting device for steering gears and pins, which helps improve the efficiency and quality of the press-fitting process. Utility Model Content

[0004] This utility model discloses a press-fitting device for steering gear gears and pins, which aims to solve technical problems in automobile repair.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A press-fitting device for a steering gear gear and a pin includes a base, a fixing frame fixedly connected to the upper surface of the base, a press-fitting mechanism provided on the surface of the fixing frame, a pin limiting mechanism provided on the surface of the base, and a gear clamping assembly provided on the surface of the base.

[0007] The pin-shaft limiting mechanism includes a limiting bottom ring fixed to the upper surface of the base. A rotating support shell is rotatably connected to the inner side of the limiting bottom ring. A limiting mounting plate is fixedly connected to the top of the rotating support shell. An electric telescopic rod is fixedly installed on the inner bottom wall of the rotating support shell. A positioning plate is fixedly connected to the telescopic end of the electric telescopic rod. Several pin-shaft limiting plates are fixedly connected to the surface of the positioning plate. The pin-shaft limiting plates are located between the pressing mechanism and the gear clamping assembly.

[0008] In a preferred embodiment, the surface of the pin limiting plate is provided with pin limiting holes, and a plurality of the pin limiting plates are evenly distributed in a ring array on the surface of the positioning disk.

[0009] In a preferred embodiment, the pressing mechanism includes a hydraulic push rod fixedly mounted on the top of the fixed frame. The telescopic end of the hydraulic push rod extends to the bottom of the fixed frame and is fixedly connected to a pressing block. The position of the pressing block corresponds to the pin limit plate.

[0010] In a preferred embodiment, the gear clamping assembly includes two electric push rods fixedly connected to the surface of the base, with clamping blocks fixedly connected to the telescopic ends of the two electric push rods, and the two clamping blocks are symmetrically distributed on the surface of the base.

[0011] In a preferred embodiment, gear limiting grooves are provided on the opposite surfaces of the two clamping blocks, and a plurality of rubber protrusions are fixedly connected to the inner wall of the gear limiting grooves.

[0012] In a preferred embodiment, a guide block is fixedly connected to the side of the clamping block, a guide slide rod is fixedly provided on the surface of the base, a guide through hole matching the guide slide rod is opened on the surface of the guide block, and the guide block is slidably connected to the surface of the guide slide rod through the guide through hole.

[0013] In a preferred embodiment, a rotary motor is fixedly mounted on the upper surface of the base, a drive gear is fixedly mounted on the output shaft of the rotary motor, and a linkage gear is fixedly connected to the outer side of the rotary support shell.

[0014] In a preferred embodiment, four positioning posts are fixedly connected to the upper surface of the limiting mounting plate, and four positioning mounting holes matching the positioning posts are opened on the surface of the positioning disk. The positioning disk is sleeved and mounted on the surface of the positioning posts through the positioning mounting holes.

[0015] In a preferred embodiment, a laser emitter is fixedly mounted on the lower surface of the mounting bracket, and a laser receiver is fixedly mounted on the surface of the pin limiting plate, with the position of the laser receiver corresponding to that of the laser emitter.

[0016] As can be seen from the above, the press-fitting device for steering gear gears and pins provided by this utility model has the following technical effects.

[0017] Firstly, by setting a pin limit mechanism on the surface of the base plate, the gear shaft can be limited by the pin limit hole on the surface of the pin limit plate, and the height of the pin limit plate can be adjusted and positioned by the electric telescopic rod. This is suitable for auxiliary limiting of gear pins of different lengths, improving the stability of the pin and gear pressing process.

[0018] Secondly, by setting up a rotary motor, the rotary motor can drive the rotary support shell and positioning plate to rotate, thereby driving several pin limit plates to rotate sequentially to the bottom of the pressing mechanism, thus realizing continuous pressing operation of the gear pins, which is conducive to improving the efficiency of pressing work. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of a press-fitting device for a steering gear and pin shaft proposed in this utility model.

[0020] Figure 2 This is a side view of the press-fitting device for a steering gear and pin shaft proposed in this utility model.

[0021] Figure 3 This is a bottom view of the press-fitting device for a steering gear and pin shaft proposed in this utility model.

[0022] Figure 4 This is a partial structural schematic diagram of a press-fitting device for a steering gear and pin shaft proposed in this utility model.

[0023] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.

[0024] In the attached diagram: 1. Fixing frame; 2. Pressing mechanism; 3. Pin shaft limiting mechanism; 4. Gear clamping assembly; 5. Rotary motor; 6. Drive gear; 7. Linkage gear ring; 8. Laser emitter; 9. Laser receiver;

[0025] 201. Hydraulic push rod; 202. Press-fit block;

[0026] 301. Limiting bottom ring; 302. Rotary support shell; 303. Limiting mounting plate; 304. Electric telescopic rod; 305. Positioning plate; 306. Pin limiting plate; 307. Pin limiting hole; 308. Positioning post; 309. Rubber ring;

[0027] 401. Electric push rod; 402. Clamping block; 403. Gear limiting groove; 404. Rubber protrusion; 405. Guide block; 406. Guide slide rod. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1 and Figure 2 A press-fitting device for a steering gear and a pin includes a base, a fixing frame 1 fixedly connected to the upper surface of the base, a press-fitting mechanism 2 provided on the surface of the fixing frame 1, a pin limiting mechanism 3 provided on the surface of the base, and a gear clamping assembly 4 provided on the surface of the base.

[0030] Reference Figure 3and Figure 4 In a preferred embodiment, the pin limiting mechanism 3 includes a limiting bottom ring 301 fixed to the upper surface of the base, and a rotating support shell 302 is rotatably connected to the inner side of the limiting bottom ring 301.

[0031] It should be noted that a rotary motor 5 is fixedly installed on the upper surface of the base, a drive gear 6 is fixedly installed on the output shaft of the rotary motor 5, and a linkage gear ring 7 is fixedly connected to the outer side of the rotary support shell 302. The drive gear 6 meshes with the linkage gear ring 7.

[0032] It should be noted that the top of the rotating support shell 302 is fixedly connected to a limiting mounting plate 303, and four positioning posts 308 are fixedly connected to the upper surface of the limiting mounting plate 303. The surface of the positioning plate 305 is provided with four positioning mounting holes that match the positioning posts 308. The positioning plate 305 is fitted onto the surface of the positioning posts 308 through the positioning mounting holes.

[0033] By setting the positioning column 308, the positioning plate 305 can be limited, thereby improving the stability of the positioning plate 305 during the up-and-down adjustment and movement process.

[0034] It should be noted that an electric telescopic rod 304 is fixedly installed on the inner bottom wall of the rotating support shell 302. The telescopic end of the electric telescopic rod 304 is fixedly connected to a positioning plate 305. Several pin limit plates 306 are fixedly connected to the surface of the positioning plate 305. The pin limit plates 306 are located between the pressing mechanism 2 and the gear clamping assembly 4.

[0035] It is worth noting that by setting a pin limit mechanism 3 on the surface of the base plate, the pin limit hole 307 on the surface of the pin limit plate 306 can be used to limit the gear shaft, and the height of the pin limit plate 306 can be adjusted and positioned by using an electric telescopic rod 304. This is suitable for auxiliary limiting of gear pins of different lengths, and improves the stability of the pin and gear pressing process.

[0036] In a preferred embodiment, the pressing mechanism 2 includes a hydraulic push rod 201 fixedly installed on the top of the fixed frame 1. The telescopic end of the hydraulic push rod 201 extends to the bottom of the fixed frame 1 and is fixedly connected to a pressing block 202. The position of the pressing block 202 corresponds to the pin limit plate 306.

[0037] It should be noted that a laser emitter 8 is fixedly installed on the lower surface of the fixed frame 1, and a laser receiver 9 is fixedly installed on the surface of the pin limit plate 306. The position of the laser receiver 9 corresponds to that of the laser emitter 8. A controller is located on the surface of the fixed frame 1. The controller is electrically connected to the laser receiver 9, the laser emitter 8 and the rotary motor 5 respectively.

[0038] Through the above technical solution, when the positioning disk 305 drives the pin limit plate 306 to rotate to the position of the fixed frame 1, the laser receiver 9 on the surface of the pin limit plate 306 receives the laser signal emitted by the laser emitter 8 on the surface of the fixed frame 1, and then immediately stops the rotation of the positioning disk 305 to perform the press-fit operation on the pin.

[0039] It is worth noting that by setting a rotary motor 5, when installing the pin, the rotary motor 5 can drive the rotary support shell 302 and the positioning plate 305 to rotate, thereby driving several pin limit plates 306 to rotate sequentially to the bottom of the pressing mechanism 2, thus realizing continuous pressing operation of the gear pin, which is conducive to improving the efficiency of pressing work.

[0040] It should be noted that the gear clamping assembly 4 includes two electric push rods 401 fixedly connected to the surface of the base. The telescopic ends of the two electric push rods 401 are fixedly connected to clamping blocks 402, and the two clamping blocks 402 are symmetrically distributed on the surface of the base.

[0041] Reference Figure 5 In a preferred embodiment, gear limiting grooves 403 are provided on the opposite surfaces of the two clamping blocks 402, and a plurality of rubber protrusions 404 are fixedly connected to the inner wall of the gear limiting grooves 403.

[0042] The gear limiting groove 403 has a V-shaped structure, which can be used to limit gears of different sizes, and the rubber protrusion 404 can improve the anti-slip limiting effect of the gear.

[0043] It should be noted that a guide block 405 is fixedly connected to the side of the clamping block 402, and a guide slide rod 406 is fixedly provided on the surface of the base. The surface of the guide block 405 is provided with a guide through hole that matches the guide slide rod 406, and the guide block 405 is slidably connected to the surface of the guide slide rod 406 through the guide through hole.

[0044] It should be further explained that the pin limiting plate 306 has a pin limiting hole 307 on its surface. Several pin limiting plates 306 are evenly distributed in a ring array on the surface of the positioning disk 305. A rubber ring 309 is fixedly connected to the inner wall of the pin limiting hole 307. The rubber ring 309 can increase the friction between the pin and the pin limiting hole 307 and squeeze the pin, thereby forming an interference fit between the pin and the pin limiting hole 307, which facilitates the pin limiting plate 306 to drive the pin to move.

[0045] Working principle: In use, firstly, several pins are inserted one by one into the pin limiting holes 307 on the surface of the pin limiting plate 306. Then, the steering gear is placed between two clamping blocks 402. The electric push rod 401 drives the clamping blocks 402 to clamp and fix the gear. Then, the rotary motor 5 drives the positioning plate 305 to rotate, thereby rotating the pin to the underside of the pressing block 202. The hydraulic push rod 201 drives the pressing block 202 to move downward, and the pressing block 202 presses the pin downward to install and fix the pin to the gear. Then, the electric telescopic rod 304 drives the pin limiting plate 306 to return to its original position, rotating the next pin to the pressing position to facilitate subsequent pressing work.

[0046] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A press-fitting device for a steering gear gear and a pin shaft, comprising a base, characterized in that, The upper surface of the base is fixedly connected to a fixing frame (1), the surface of the fixing frame (1) is provided with a pressing mechanism (2), the surface of the base is provided with a pin shaft limiting mechanism (3), and the surface of the base is provided with a gear clamping assembly (4). The pin limiting mechanism (3) includes a limiting bottom ring (301) fixed on the upper surface of the base. A rotating support shell (302) is rotatably connected to the inner side of the limiting bottom ring (301). A limiting mounting plate (303) is fixedly connected to the top of the rotating support shell (302). An electric telescopic rod (304) is fixedly provided on the inner bottom wall of the rotating support shell (302). A positioning plate (305) is fixedly connected to the telescopic end of the electric telescopic rod (304). A plurality of pin limiting plates (306) are fixedly connected to the surface of the positioning plate (305). The pin limiting plates (306) are located between the pressing mechanism (2) and the gear clamping assembly (4).

2. The press-fitting device for a steering gear and pin shaft according to claim 1, characterized in that, The pin limiting plate (306) has a pin limiting hole (307) on its surface, and several pin limiting plates (306) are evenly distributed in a ring array on the surface of the positioning disk (305).

3. The press-fitting device for a steering gear and pin shaft according to claim 1, characterized in that, The pressing mechanism (2) includes a hydraulic push rod (201) fixedly installed on the top of the fixed frame (1). The telescopic end of the hydraulic push rod (201) extends to the bottom of the fixed frame (1) and is fixedly connected to a pressing block (202). The position of the pressing block (202) corresponds to the pin limit plate (306).

4. The press-fitting device for a steering gear and pin shaft according to claim 1, characterized in that, The gear clamping assembly (4) includes two electric push rods (401) fixedly connected to the surface of the base. The telescopic ends of the two electric push rods (401) are fixedly connected to clamping blocks (402), and the two clamping blocks (402) are symmetrically distributed on the surface of the base.

5. The press-fitting device for a steering gear and pin shaft according to claim 4, characterized in that, The two clamping blocks (402) have gear limiting grooves (403) on their opposite surfaces, and a number of rubber protrusions (404) are fixedly connected to the inner wall of the gear limiting grooves (403).

6. The press-fitting device for a steering gear and pin shaft according to claim 4, characterized in that, A guide block (405) is fixedly connected to the side of the clamping block (402), and a guide slide rod (406) is fixedly provided on the surface of the base. A guide through hole matching the guide slide rod (406) is opened on the surface of the guide block (405), and the guide block (405) is slidably connected to the surface of the guide slide rod (406) through the guide through hole.

7. The press-fitting device for a steering gear and pin shaft according to claim 1, characterized in that, A rotary motor (5) is fixedly installed on the upper surface of the base. A drive gear (6) is fixedly installed on the output shaft of the rotary motor (5). A linkage gear ring (7) is fixedly connected to the outer side of the rotary support shell (302). The drive gear (6) meshes with the linkage gear ring (7).

8. The press-fitting device for a steering gear and pin shaft according to claim 1, characterized in that, The upper surface of the limiting mounting plate (303) is fixedly connected with four positioning posts (308), and the surface of the positioning disk (305) is provided with four positioning mounting holes that match the positioning posts (308). The positioning disk (305) is sleeved and mounted on the surface of the positioning posts (308) through the positioning mounting holes.

9. The press-fitting device for a steering gear and pin shaft according to claim 1, characterized in that, A laser emitter (8) is fixedly installed on the lower surface of the fixed frame (1), and a laser receiver (9) is fixedly installed on the surface of the pin limit plate (306). The position of the laser receiver (9) corresponds to that of the laser emitter (8).

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