Tool for detecting distance between racks of steering gear box of automobile

Abstract

The utility model relates to the technical field of automobile steering gear box detection, and discloses an automobile steering gear box rack spacing detection tool, which comprises a box body, the top of the box body is hinged with a box cover through a hinge, the inside of the box body is rotatably connected with a rotating rod through a pin shaft, the end part of the rotating rod is fixedly provided with an adjustable clamping part, and the adjustable clamping part is connected with the box cover through a pin shaft. The two rotating rods are symmetrically arranged in the box body, a placement box is fixedly mounted in the box body, an electric torque wrench is clamped in the placement box, a laser range finder is arranged in the box cover, and fixing clamps are mounted at the ends of the rotating rods through connecting rods, so that the positions of the fixing clamps can be adjusted by rotating the rotating rods; by rotating the threaded rod, the movable clamp moves along the threaded rod, then the distance between the fixed clamp and the movable clamp is changed, steering gears of different specifications are clamped, the adjustable clamping parts on the two rotating rods are used for clamping and fixing different positions of the steering gears, and clamping stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering gear testing technology, specifically a tool for testing the rack spacing of automotive steering gears. Background Technology

[0002] The steering gear, also known as the steering unit, primarily relies on its internal rack and pinion mechanism for operation. When the driver turns the steering wheel, the torque of the steering wheel is transmitted to the rack and pinion mechanism inside the steering gear via the steering shaft. The rack and pinion mechanism converts circular motion into linear motion, pushing the steering tie rod and subsequently turning the wheels to achieve vehicle steering. During this process, if the gears and rack do not mesh completely, the steering gear will operate unevenly, and in severe cases, abnormal noise will occur, affecting the driver's driving experience. Therefore, it is necessary to accurately detect the meshing clearance between the gears and rack. Existing testing methods mostly involve disassembling the steering gear and placing it in testing equipment. This method uses bulky testing equipment, which is inconvenient to carry and operate. Utility Model Content

[0003] The purpose of this invention is to provide a tool for detecting the spacing of the steering gear rack in an automobile, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tool for detecting the spacing of a car steering rack, comprising a housing, a cover hinged to the top of the housing, a rotating rod rotatably connected to the inside of the housing via a pin, an adjustable clamping component fixedly installed at the end of the rotating rod, two rotating rods symmetrically arranged within the housing, a placement box fixedly installed inside the housing, an electric torque wrench snapped into the placement box, a laser rangefinder installed inside the cover, and a horizontal adjustment component fixedly installed at the bottom of the laser rangefinder, the horizontal adjustment component being installed inside the cover.

[0005] Furthermore, a handle is fixedly installed on the front of the box body, and a spring lock is fixedly installed on the outer wall of the box lid.

[0006] Furthermore, the leveling component includes a lead screw, the right end of which passes through the inner wall of the box cover via a bearing, a moving strip is threaded onto the outer wall of the lead screw, the laser rangefinder is fixedly mounted on the top of the moving strip, the left end of the moving strip movably passes through the inner wall of the box cover, and a throttle is fixedly mounted on the right end of the lead screw.

[0007] Furthermore, the adjustable clamping component includes a connecting rod, which is fixedly installed at the end of the rotating rod. A fixed clamp is fixedly installed at the end of the connecting rod away from the rotating rod. A threaded rod is rotatably connected to the inner wall of the fixed clamp via a bearing. A movable clamp is threadedly fitted onto the outer wall of the threaded rod. A sliding rod is fixedly installed on the outer wall of the fixed clamp facing the movable clamp, and the sliding rod movably penetrates the outer wall of the movable clamp.

[0008] Furthermore, the outer wall of the box body is provided with a positioning hole, and a positioning pin is inserted into the inner wall of the rotating rod, the outer diameter of the positioning pin being the same as the inner diameter of the positioning hole.

[0009] Furthermore, a positioning protrusion is fixedly provided on the top of the handle, and a positioning groove is provided on the bottom of the box cover, with the positioning protrusion engaging into the positioning groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The adjustable clamping component is folded and rotated using a rotating rod. During transport, the adjustable clamping component is stored inside the box. During testing, the adjustable clamping component is rotated out of the box to clamp and fix the steering gear. A storage box is provided to hold the electric torque wrench and prevent it from sliding inside the box. The position of the laser rangefinder is adjusted by a horizontal adjustment component so that the laser rangefinder can be aligned with one end of the rack inside the steering gear. A fixed torque is applied to the other end of the rack by the electric torque wrench. The meshing gap between the gear and rack of the steering gear causes the rack to deviate slightly, which is detected by the laser rangefinder. The overall device is small in size, can be folded and stored, and is easy to carry.

[0012] 2. The fixed clamp is installed on the end of the rotating rod by the connecting rod, so that the position of the fixed clamp can be adjusted by rotating the rotating rod. The movable clamp moves along the threaded rod by rotating the threaded rod, thereby changing the distance between the fixed clamp and the movable clamp. This is used to clamp steering gears of different specifications. The adjustable clamping components on the two rotating rods clamp and fix different positions on the steering gear to ensure the stability of the clamping. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0015] Figure 3 This is a schematic diagram of the adjustable clamping component of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the horizontal adjustment component of this utility model;

[0017] Figure 5 This is a structural schematic diagram of the bottom of the box lid of this utility model, viewed from below.

[0018] In the diagram: 101. Box body; 102. Box lid; 103. Spring lock; 2. Rotating rod; 3. Electric torque wrench; 4. Placement box; 5. Laser rangefinder; 6. Horizontal adjustment component; 601. Moving bar; 602. Lead screw; 7. Handle; 8. Adjustable clamping component; 801. Connecting rod; 802. Fixed clamp; 803. Movable clamp; 804. Threaded rod; 805. Slide rod; 9. Positioning hole; 10. Positioning pin; 11. Rotary... 101. Box body; 102. Box lid; 103. Spring lock; 2. Rotating rod; 3. Electric torque wrench; 4. Placement box; 5. Laser rangefinder; 6. Horizontal adjustment component; 601. Moving bar; 602. Lead screw; 7. Handle; 8. Adjustable clamping component; 801. Connecting rod; 802. Fixed clamp; 803. Movable clamp; 804. Threaded rod; 805. Slide rod; 9. Positioning hole; 10. Positioning pin; 11. Turning handle. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5This utility model provides a technical solution: a tool for detecting the spacing of a car steering rack, including a housing 101, a cover 102 hinged to the top of the housing 101, a rotating rod 2 rotatably connected to the inside of the housing 101 via a pin, an adjustable clamping component 8 fixedly installed at the end of the rotating rod 2, two rotating rods 2 symmetrically arranged inside the housing 101, a placement box 4 fixedly installed inside the housing 101, an electric torque wrench 3 snapped into the placement box 4, a laser rangefinder 5 installed inside the cover 102, and a horizontal [unclear - possibly a device or mechanism] fixedly installed at the bottom of the laser rangefinder 5. Adjustment component 6, a leveling component 6 is installed inside the cover 102. A tool for detecting the rack spacing of an automotive steering gear includes a housing 101. The top of the housing 101 is hinged to the cover 102. A rotating rod 2 is rotatably connected to the inside of the housing 101 via a pin. An adjustable clamping component 8 is fixedly installed at the end of the rotating rod 2. Two rotating rods 2 are provided and symmetrically arranged inside the housing 101. A placement box 4 is fixedly installed inside the housing 101. An electric torque wrench 3 is engaged inside the placement box 4. A laser rangefinder 5 is installed inside the cover 102. The bottom of the laser rangefinder 5... A leveling component 6 is fixedly installed inside the cover 102. When carrying the testing tool, the box consisting of the box body 101 and the cover 102 serves as a transport device, making it easy to carry. During testing, after opening the box body 101 and the cover 102, the box body 101 can act as a base to increase the ground contact area of ​​the testing tool, making the tool more stable. The rotating rod 2 acts as a rotating and folding component for the adjustable clamping component 8. During transport, the adjustable clamping component 8 is stored inside the box body 101, and during testing, the adjustable clamping component 8 is removed from the box body 101. The steering gear is clamped and fixed by the adjustable clamping component 8. A placement box 4 is provided to hold the electric torque wrench 3 to prevent the electric torque wrench 3 from sliding inside the box 101. The position of the laser rangefinder 5 is adjusted by the horizontal adjustment component 6 so that the laser rangefinder 5 can be aligned with one end of the rack inside the steering gear. A fixed torque is applied to the other end of the rack by the electric torque wrench 3. The meshing gap between the gear and rack of the steering gear causes the rack to produce a slight deviation, which is detected by the laser rangefinder 5. The overall device is small in size, can be folded and stored, and is easy to carry.

[0021] A handle 7 is fixedly installed on the front of the box body 101 for workers to carry the box consisting of the box body 101 and the box lid 102. A spring lock 103 is fixedly installed on the outer wall of the box lid 102, which snaps together the box body 101 and the box lid 102 after the box lid 102 is closed.

[0022] The horizontal adjustment component 6 includes a lead screw 602. The right end of the lead screw 602 passes through the inner wall of the cover 102 via a bearing. A moving strip 601 is threaded onto the outer wall of the lead screw 602. The laser rangefinder 5 is fixedly installed on the top of the moving strip 601. The left end of the moving strip 601 moves through the inner wall of the cover 102. A throttle 11 is fixedly installed on the right end of the lead screw 602. By rotating the throttle 11, the lead screw 602 is rotated, which causes the moving strip 601 to move along the lead screw 602, thereby moving the laser rangefinder 5 so that the laser rangefinder 5 can be aligned with one end of the rack inside the steering mechanism.

[0023] The adjustable clamping component 8 includes a connecting rod 801, which is fixedly installed at the end of the rotating rod 2. A fixed clamp 802 is fixedly installed at the end of the connecting rod 801 away from the rotating rod 2. A threaded rod 804 is rotatably connected to the inner wall of the fixed clamp 802 through a bearing. A movable clamp 803 is threadedly fitted onto the outer wall of the threaded rod 804. A sliding rod 805 is fixedly installed on the outer wall of the fixed clamp 802 facing the movable clamp 803. The sliding rod 805 movably passes through the outer wall of the movable clamp 803. The fixed clamp 802 is installed on the end of the rotating rod 2 through the connecting rod 801, so that rotating the rotating rod 2 can adjust the position of the fixed clamp 802. By rotating the threaded rod 804, the movable clamp 803 moves along the threaded rod 804, thereby changing the distance between the fixed clamp 802 and the movable clamp 803. This is used to clamp steering gears of different specifications. The adjustable clamping components 8 on the two rotating rods 2 clamp and fix different positions on the steering gear to ensure the stability of the clamping.

[0024] The outer wall of the box 101 is provided with a positioning hole 9, and a positioning pin 10 is inserted into the inner wall of the rotating rod 2. The outer diameter of the positioning pin 10 is the same as the inner diameter of the positioning hole 9. After the rotating rod 2 rotates and rotates the adjustable clamping component 8 out of the box 101, the positioning pin 10 is inserted into the positioning hole 9 after passing through the rotating rod 2 to fix the rotating rod 2, thereby ensuring that the rotating rod 2 will not rotate during the testing process.

[0025] A positioning protrusion is fixedly provided on the top of the handle 7, and a positioning groove is provided on the bottom of the cover 102. The positioning protrusion is inserted into the positioning groove. When the cover 102 is opened, the positioning protrusion is inserted into the positioning groove to ensure that the cover 102 is parallel to the box body 101, thereby ensuring the accuracy of the laser rangefinder 5's monitoring data on the rack offset.

[0026] Working principle: In use, close the box body 101 and the box cover 102, then take the testing tool directly to the testing site (repair workshop or auto repair shop). Place the box body 101 on the ground or platform, open the box cover 102 until the positioning protrusion is engaged in the positioning groove, then rotate the rotating rod 2 to rotate the adjustable clamping component 8 out of the box body 101. Then, insert the positioning pin 10 through the rotating rod 2 into the positioning hole 9. At this time, the two adjustable clamping components 8 are in a symmetrical state. Move the steering gear from the fixed clamp 802 and the movable clamp 802. The lever passes through the clamp 803, and then the threaded rod 804 is rotated to move the movable clamp 803 until the steering gear is clamped and fixed. The throttle 11 is rotated to drive the lead screw 602 to rotate, causing the moving bar 601 to move, which in turn drives the laser rangefinder 5 to move, so that the laser rangefinder 5 is aligned with the rack at the left end of the steering gear. Then, the electric torque wrench 3 is taken out and the corresponding torque value is adjusted to apply torque to the right end of the steering gear rack, causing the rack to deviate. At this time, the laser rangefinder 5 detects the amount of deviation, and can then calculate the meshing clearance of the gear rack inside the steering gear.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A tool for detecting the pitch of a car steering rack, comprising a housing (101), characterized in that: The top of the box body (101) is hinged to a lid (102). The inside of the box body (101) is rotatably connected to a rotating rod (2) via a pin. An adjustable clamping component (8) is fixedly installed at the end of the rotating rod (2). There are two rotating rods (2) symmetrically arranged inside the box body (101). A placement box (4) is fixedly installed inside the box body (101). An electric torque wrench (3) is snapped into the placement box (4). A laser rangefinder (5) is installed inside the lid (102). A horizontal adjustment component (6) is fixedly installed at the bottom of the laser rangefinder (5). The horizontal adjustment component (6) is installed inside the lid (102).

2. The tool for detecting the pitch of a car steering rack according to claim 1, characterized in that: A handle (7) is fixedly installed on the front of the box body (101), and a spring lock (103) is fixedly installed on the outer wall of the box cover (102).

3. The tool for detecting the pitch of a car steering rack according to claim 1, characterized in that: The horizontal adjustment component (6) includes a lead screw (602), the right end of which passes through the inner wall of the cover (102) via a bearing, and a moving bar (601) is threaded onto the outer wall of the lead screw (602). The laser rangefinder (5) is fixedly installed on the top of the moving bar (601), and the left end of the moving bar (601) movably passes through the inner wall of the cover (102). A throttle (11) is fixedly installed on the right end of the lead screw (602).

4. The tool for detecting the pitch of a car steering rack according to claim 1, characterized in that: The adjustable clamping component (8) includes a connecting rod (801), which is fixedly installed at the end of the rotating rod (2). A fixed clamp (802) is fixedly installed at the end of the connecting rod (801) away from the rotating rod (2). A threaded rod (804) is rotatably connected to the inner wall of the fixed clamp (802) through a bearing. A movable clamp (803) is threadedly fitted on the outer wall of the threaded rod (804). A slide rod (805) is fixedly installed on the outer wall of the fixed clamp (802) facing the movable clamp (803). The slide rod (805) movably passes through the outer wall of the movable clamp (803).

5. The tool for detecting the pitch of a car steering rack according to claim 1, characterized in that: The outer wall of the box (101) is provided with a positioning hole (9), and a positioning pin (10) is inserted into the inner wall of the rotating rod (2). The outer diameter of the positioning pin (10) is the same as the inner diameter of the positioning hole (9).

6. The tool for detecting the pitch of a car steering rack according to claim 2, characterized in that: The top of the handle (7) is fixedly provided with a positioning protrusion, and the bottom of the cover (102) is provided with a positioning groove, and the positioning protrusion is inserted into the positioning groove.

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