A multifunctional test bench for testing the performance of automobile steering gear

Abstract

The invention discloses a multifunctional test bench for testing the performance of an automobile steering gear, which comprises a table, a spray device is arranged on the table, a recovery water tank is arranged in conjunction with the spray device, the spray device is supplied with water by a water pump, an automobile steering gear fixing frame is arranged on the recovery water tank, an outer pull rod test bench is arranged at the same direction position near both ends of the recovery water tank, and an input shaft test bench is arranged near the middle of the recovery water tank and away from one side of the spray device. The invention solves the blank of the prior art, realizes a mechanism that can comprehensively test the automobile steering gear for a long time, and is easy to operate and has various functions.

Description

Technical Field

[0001] The invention relates to the detection of an automobile steering gear, in particular to a multifunctional test bench for detecting the performance of an automobile steering gear. Background Art

[0002] The steering system is an important part of the car. It is a mechanism used to maintain or change the direction of the car. When the car is turning, it is also necessary to ensure that there is a coordinated angle relationship between the steering wheels. The driver manipulates the steering system to keep the car in a straight or turning state, or to convert the two states of motion. With the popularization of cars, the use of cars is increasing, and different types of car steering gears are also increasing. Many car steering gears must undergo certain tests before they are finalized or shipped. However, current manufacturers lack such special testing institutions for car steering gears. The market urgently needs a mechanism that can conduct comprehensive tests on car steering gears. Summary of the invention

[0003] The purpose of the present invention is to provide a multifunctional test bench for testing the performance of automobile steering gears with reasonable structure and good testing effect.

[0004] The technical solution of the present invention is a multifunctional test bench for detecting the performance of an automobile steering gear, which includes a table top, and is characterized in that: a spray device is provided on the table top, a recovery water tank is provided to match the spray device, the spray device is supplied with water by a water pump, an automobile steering gear fixing frame is provided on the recovery water tank, external pull rod test benches are provided at positions in the same direction near both ends of the recovery water tank, and an input shaft test bench is provided near the middle of the recovery water tank and away from one side of the spray device.

[0005] The spray device is a plurality of parallel spray faucets, and the water outlets of the spray faucets are all directed toward the automobile steering gear fixing frame.

[0006] The frame body of the automobile steering gear fixing frame is door-shaped and straddles the recovery water tank. A clamp is arranged on the top of the frame body.

[0007] The structure of the external pull rod test bench is as follows: the fixed table is connected to the table plate by screws, the base plate of the sliding device is connected to the fixing device by screws, the fixed block is fixed to the base plate by screws, the cylindrical guide rail and the ball screw are assembled in the fixed block by deep groove ball bearings, the slider with balls is installed on the cylindrical guide rail and the ball screw, the T-block is fixed to the slider with balls by screws, the rocker arm is fixed to the T-block by deep groove ball bearings, the upper and lower end surfaces of the rocker arm are kept axially fixed by retaining springs, the tapered sleeve is fixed in the preset threaded hole of the rocker arm by threaded connection, and the servo motor is connected to the ball screw by a connector; a sliding connection device is connected to the bottom of the rocker arm, and a damping device is fixed to the lower part of the sliding connection device.

[0008] The sliding connection device includes an upper yoke, an upper cross bearing, an upper sliding shaft, a lower fixed shaft, a lower cross bearing, and a lower yoke; wherein the upper yoke is connected to the upper sliding shaft through an upper cross bearing, the upper sliding shaft is provided with an external spline, and the inner wall of the lower fixed shaft is provided with an internal spline that matches the upper sliding shaft, thereby ensuring that the sliding connection device can only move in the axial direction, and the lower fixed shaft is connected to the lower yoke through a lower cross bearing.

[0009] The damping device comprises a fixed base and a magnetic powder brake, wherein the output shaft of the magnetic powder brake is connected with the lower yoke, and the fixed base is fixed to the table plate by bolts.

[0010] The input shaft test bench includes a transverse horizontal guide rail, a longitudinal horizontal guide rail, a guide rail slider, a fixed base, a rotating base, a screw barrel, a screw, a planetary gear assembly, a No. 1 servo motor, a fixing screw, an angle adjustment plate, an upper support frame, a No. 2 servo motor, and a No. 3 sliding connection device; the transverse horizontal guide rail is fixed on the table, the longitudinal horizontal guide rail moves left and right on the transverse horizontal guide rail through a slider, the fixed base and the guide rail slider are connected to each other by screws, the fixed base moves back and forth on the longitudinal horizontal guide rail through the guide rail slider, and the rotating base is connected to the fixed base through a four-point contact ball bearing The rotating base rotates 360° in a circle relative to the fixed base. The built-in rotating groove of the screw barrel is fixed on the rotating base. The top of the screw is connected to the upper support frame through a deep groove ball bearing. A gear assembly is installed on the upper part of the screw, and the lower end of the screw cooperates with the screw barrel. The No. 1 servo motor is connected to the driving gear through a keyway. The angle adjustment plate is installed on the upper support frame and can adjust the angle along the arc track on the support frame. After adjusting to the appropriate angle, it is fixed with fixing screws. The No. 2 servo motor is installed on the angle adjustment plate; the No. 2 servo motor housing is fixedly connected with a No. 3 sliding connection device.

[0011] The No. 3 sliding connection device includes: No. 3 upper yoke, No. 3 upper cross bearing, No. 3 upper sliding shaft, No. 3 lower fixed shaft, No. 3 lower cross bearing, and No. 3 lower yoke; wherein the No. 3 upper yoke is connected to the No. 2 servo motor output shaft through a spline, the No. 3 upper yoke is connected to the No. 3 upper sliding shaft through the upper No. 3 cross bearing, the No. 3 upper sliding shaft is provided with an external spline, the No. 3 lower fixed shaft has an internal spline inside its inner wall that matches the No. 3 upper sliding shaft, so that the sliding connection device can only move in the axial direction, the No. 3 lower fixed shaft is connected to the No. 3 lower yoke through the No. 3 lower cross bearing, and the No. 3 lower yoke is connected to the output shaft of the test product through a spline.

[0012] The planetary gear assembly includes a first driven gear, a second driven gear, a third driven gear, a fourth driven gear, and a main driving gear; the first, second, third, and fourth driven gears surround the main driving gear and are respectively meshed with the main driving gear.

[0013] The invention solves the blank of the prior art and realizes a mechanism which can comprehensively test the steering gear of an automobile for a long time, and has convenient operation and various functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the input shaft test bench described in the present invention.

[0016] Figure 3 It is a structural schematic diagram of the external pull rod test bench described in the present invention.

[0017] Figure 4 It is a schematic structural diagram of the gear assembly part described in the present invention.

[0018] Figure 5 It is a structural schematic diagram of the No. 3 sliding connection device described in the present invention. DETAILED DESCRIPTION

[0019] The embodiments are described in detail with reference to the above drawings.

[0020] Example

[0021] A multifunctional test bench for testing the performance of an automobile steering gear comprises a table top (1), a support leg (1-2) is arranged below the table top, a spray device (7) is arranged on the table top, a recovery water tank (2) is arranged in conjunction with the spray device, the spray device is supplied with water by a water pump, and a water inlet of the water pump can be connected to an external water source, an automobile steering gear fixing frame (8) is arranged on the recovery water tank, external tie rod test benches are arranged at positions in the same direction near both ends of the recovery water tank, namely, external tie rod test benches (3-1) and (3-2), and an input shaft test bench (6) is arranged near the middle of the recovery water tank and away from one side of the spray device.

[0022] The spray device is a plurality of parallel spray faucets.

[0023] The frame body of the automobile steering gear fixing frame is door-shaped and straddles the recovery water tank. A clamp (9) is provided on the top of the frame body.

[0024] The structure of the external pull rod test bench is as follows: its fixed platform (3-1-1) is connected to the platform (1) by screws, the base plate (3-1-2-1) of the sliding device (3-1-2) is connected to the fixed device (3-1-1) by screws, the fixed block (3-1-2-2) is fixed to the base plate (3-1-2-1) by screws, the cylindrical guide rail (3-1-2-3) and the ball screw (3-1-2-4) are assembled in the fixed block (3-1-2-2) by deep groove ball bearings, and the slider (3-1-2-5) with balls is installed on the cylindrical guide rail (3-1-2-3) and the ball screw ( The invention relates to a servo motor (3-1-3) and a servo motor (3-1-4). The servo motor (3-1-4) is connected to a ball screw (3-1-2-4), a T-block (3-1-4) is fixed to a slider (3-1-2-5) with a ball by screws, a rocker arm (3-1-5) is fixed to the T-block (3-1-4) by a deep groove ball bearing, the upper and lower end surfaces of the rocker arm (3-1-5) are axially fixed by a retaining ring, a taper sleeve (3-1-6) is fixed in a preset threaded hole of the rocker arm (3-1-5) by threaded connection, and a servo motor (3-1-3) is connected to the ball screw (3-1-2-4) by a connector; a sliding connection device is connected to the bottom of the rocker arm, and a damping device is fixed to the bottom of the sliding connection device.

[0025] The sliding connection device (4-1) comprises an upper yoke (4-1-1), an upper cross bearing (4-1-2), an upper sliding shaft (4-1-3), a lower fixed shaft (4-1-4), a lower cross bearing (4-1-5), and a lower yoke (4-1-6); wherein the upper yoke (4-1-1) is connected to the upper sliding shaft (4-1-3) via the upper cross bearing (4-1-2), the upper sliding shaft (4-1-3) is provided with an external spline, and the inner wall of the lower fixed shaft (4-1-4) is provided with an internal spline matched with the upper sliding shaft (4-1-3), so as to ensure that the sliding connection device can only move in the axial direction, and the lower fixed shaft (4-1-4) is connected to the lower yoke (4-1-6) via the lower cross bearing (4-1-5).

[0026] The damping device (5-1) comprises a fixed base (5-1-1) and a magnetic powder brake (5-1-2), wherein the output shaft of the magnetic powder brake (5-1-2) is connected to the lower yoke (4-1-6), and the fixed base (5-1-1) is fixed to the platform plate (1-1) by bolts.

[0027] The input shaft test bench (6) comprises a transverse horizontal guide rail (6-13), a longitudinal horizontal guide rail (6-12), a guide rail slider (6-11), a fixed base (6-10), a rotating base (6-9), a screw cylinder (6-8), a screw (6-5), a planetary gear assembly (6-6), a No. 1 servo motor (6-7), a fixing screw (6-4), an angle adjustment plate (6-2), an upper support frame (6-3), a No. 2 servo motor (6-1), and a No. 3 sliding connection device (4-3); the transverse horizontal guide rail (6-13) is fixed on the table (1), the longitudinal horizontal guide rail (6-12) moves left and right on the transverse horizontal guide rail (6-13) through a slider, and the fixed base (6-1 0) and the guide slider (6-11) are connected to each other by screws, the fixed base (6-10) moves forward and backward on the longitudinal horizontal guide rail (6-12) through the guide slider (6-11), the rotating base (6-9) is connected to the fixed base (6-10) through a four-point contact ball bearing, the rotating base (6-9) rotates 360° relative to the fixed base (6-10), the screw barrel (6-8) is fixed on the rotating base (6-9) with a built-in rotating groove, the top of the screw (6-5) is connected to the upper support frame through a deep groove ball bearing, the gear assembly (6-6) is installed on the upper part of the screw (6-5), the lower end of the screw (6-5) cooperates with the screw barrel (6-8), and the No. 1 servo motor (6-7) The angle adjustment plate (6-2) is connected with the driving gear (6-6-5) through a keyway, and is installed on the upper support frame (6-3). The angle can be adjusted along the arc track on the support frame (6-3). After adjusting to a suitable angle, it is fixed by a fixing screw (6-4). The second servo motor (6-1) is installed on the angle adjustment plate (6-2); the housing of the second servo motor is fixedly connected with a third sliding connection device (4-3); the third sliding connection device includes: a third upper fork (4-3-1), a third upper cross bearing (4-3-2), a third upper sliding shaft (4-3-3), a third lower fixed shaft (4-3-4), a third lower cross bearing (4-3-5), a third lower fork (4-3 -6); wherein the No. 3 upper fork (4-3-1) is connected to the output shaft of the No. 2 servo motor (6-1) through a spline, the No. 3 upper fork (4-3-1) is connected to the No. 3 upper sliding shaft (4-3-3) through the No. 3 upper cross bearing (4-3-2), the No. 3 upper sliding shaft (4-3-3) is provided with an external spline, the No. 3 lower fixed shaft (4-3-4) has an internal spline inside its inner wall that matches the No. 3 upper sliding shaft (4-3-3), so that the sliding connection device can only move in the axial direction, the No. 3 lower fixed shaft (4-3-4) is connected to the No. 3 lower fork (4-3-6) through the No. 3 lower cross bearing (4-3-5), and the No. 3 lower fork (4-3-6) is connected to the output shaft of the test product through a spline.

[0028] The planetary gear assembly (6-6) includes a first driven gear (6-6-1), a second driven gear (6-6-2), a third driven gear (6-6-3), a fourth driven gear (6-6-4), and a main drive gear (6-6-5); the first, second, third, and fourth driven gears surround the main drive gear and are respectively meshed with the main drive gear.

[0029] The above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A multifunctional test bench for testing the performance of a vehicle steering gear, comprising a platform, characterized in that: A spray device is arranged on the table, and a recovery water tank is arranged to match the spray device. The spray device is supplied with water by a water pump. A car steering gear fixing frame is arranged on the recovery water tank. External tie rod test benches are arranged at the same direction near both ends of the recovery water tank. An input shaft test bench is arranged near the middle of the recovery water tank and away from the spray device. The structure of the external tie rod test bench is as follows: the fixing table is connected to the table by screws, the base plate of the sliding device is connected to the fixing device by screws, the fixing block is fixed to the base plate by screws, and the cylindrical guide rail and the ball screw are fixed by screws. The deep groove ball bearing is assembled in the fixed block, the slider with ball is installed on the cylindrical guide rail and the ball screw, the T-block is fixed on the slider with ball by screws, the rocker arm is fixed on the T-block by the deep groove ball bearing, the upper and lower end surfaces of the rocker arm are kept axially fixed by the retaining spring, the taper sleeve is fixed in the preset threaded hole of the rocker arm by threaded connection, and the servo motor is connected to the ball screw by the connector; the lower part of the rocker arm is connected with a sliding connection device, and the lower part of the sliding connection device is fixed with a damping device; the input shaft test bench includes a transverse horizontal guide rail, a longitudinal horizontal guide rail Rail, guide rail slider, fixed base, rotating base, screw barrel, screw, planetary gear assembly, No. 1 servo motor, fixing screws, angle adjustment plate, upper support frame, No. 2 servo motor, No. 3 sliding connection device; the transverse horizontal guide rail is fixed on the table plate, the longitudinal horizontal guide rail moves left and right on the transverse horizontal guide rail through the slider, the fixed base and the guide rail slider are connected to each other by screws, the fixed base moves back and forth on the longitudinal horizontal guide rail through the guide rail slider, the rotating base is connected to the fixed base through a four-point contact ball bearing, and the rotating base is relative to the fixed base The seat rotates 360° in a circle, the screw barrel has a built-in rotating groove and is fixed on the rotating base, the top of the screw is connected to the upper support frame through a deep groove ball bearing, a gear assembly is installed on the upper part of the screw, and the lower end of the screw matches the screw barrel. The No. 1 servo motor is connected to the driving gear through a keyway, and the angle adjustment plate is installed on the upper support frame. It can adjust the angle along the arc track on the support frame. After adjusting to the appropriate angle, it is fixed with fixing screws. The No. 2 servo motor is installed on the angle adjustment plate; the No. 2 servo motor housing is fixedly connected to a No. 3 sliding connection device.

2. A multifunctional test bench for detecting the performance of a vehicle steering gear as claimed in claim 1, characterized in that: The spray device is a plurality of spray faucets arranged in parallel, and the water outlets of the spray faucets are all directed toward the automobile steering gear fixing frame.

3. A multifunctional test bench for detecting the performance of a vehicle steering gear as claimed in claim 1, characterized in that: The frame body of the automobile steering gear fixing frame is door-shaped and straddles the recovery water tank. A clamp is arranged on the top of the frame body.

4. A multifunctional test bench for detecting the performance of a vehicle steering gear as claimed in claim 1, characterized in that: The sliding connection device includes an upper yoke, an upper cross bearing, an upper sliding shaft, a lower fixed shaft, a lower cross bearing, and a lower yoke; wherein the upper yoke is connected to the upper sliding shaft through an upper cross bearing, the upper sliding shaft is provided with an external spline, and the inner wall of the lower fixed shaft is provided with an internal spline that matches the upper sliding shaft, thereby ensuring that the sliding connection device can only move in the axial direction, and the lower fixed shaft is connected to the lower yoke through a lower cross bearing.

5. A multifunctional test bench for testing the performance of a vehicle steering gear as claimed in claim 1, characterized in that: The damping device comprises a fixed base and a magnetic powder brake, wherein the output shaft of the magnetic powder brake is connected to the lower yoke, and the fixed base is fixed to the table plate by bolts.

6. A multifunctional test bench for detecting the performance of a vehicle steering gear as claimed in claim 1, characterized in that: The No. 3 sliding connection device includes: No. 3 upper yoke, No. 3 upper cross bearing, No. 3 upper sliding shaft, No. 3 lower fixed shaft, No. 3 lower cross bearing, and No. 3 lower yoke; wherein the No. 3 upper yoke is connected to the No. 2 servo motor output shaft through a spline, the No. 3 upper yoke is connected to the No. 3 upper sliding shaft through the upper No. 3 cross bearing, the No. 3 upper sliding shaft is provided with an external spline, the No. 3 lower fixed shaft has an internal spline inside its inner wall that matches the No. 3 upper sliding shaft, so that the sliding connection device can only move in the axial direction, the No. 3 lower fixed shaft is connected to the No. 3 lower yoke through the No. 3 lower cross bearing, and the No. 3 lower yoke is connected to the output shaft of the test product through a spline.

7. A multifunctional test bench for detecting the performance of a vehicle steering gear as claimed in claim 1, characterized in that: The planetary gear assembly includes a first driven gear, a second driven gear, a third driven gear, a fourth driven gear, and a main driving gear; the first, second, third, and fourth driven gears surround the main driving gear and are respectively meshed with the main driving gear.

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