Passenger vehicle steering gear muddy water spraying durability test bench

Abstract

The invention relates to a passenger car steering gear muddy water spraying durability test bench, which comprises a test bench base, a spraying test box and a muddy water tank, and is characterized in that the test bench base is used for supporting a power system, the spraying test box is installed on the test bench base and is used for installing a steering gear, and the muddy water tank is communicated with a spraying assembly. The spraying assembly is installed in the spraying test box and used for spraying muddy water towards the steering gear. The technical problems that an existing steering gear durability test mode cannot simulate a rainy day test effect and the test efficiency is low can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile steering gear detection, in particular to a muddy and water spraying durability test bench for passenger car steering gears. Background Art

[0002] The chassis of passenger cars are relatively low, and the steering gear is installed on the chassis of the car. In actual use, it will inevitably be washed and soaked by muddy water on the road. If the steering gear is not sealed properly, the muddy water will penetrate into the steering gear, and the rack and pinion tooth surfaces will be scratched and rusted, causing the steering gear to get stuck and not return to the center. In the prior art, the durability test of the sealing performance of the automobile steering gear is carried out by manually operating the steering wheel. The main disadvantage is that it cannot simulate the test effect on rainy days, and the manual operation is labor-intensive, manpower-consuming, and the test efficiency is low. Summary of the invention

[0003] Aiming at the technical problems that the existing steering gear durability test method cannot simulate the test effect in rainy days and the test efficiency is low, the present invention provides a passenger car steering gear mud and water spray durability test bench.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A passenger car steering gear mud and water spray durability test bench comprises a test bench base, a spray test box and a mud and water tank, wherein the test bench base is used to support a power system, the spray test box is installed on the test bench base and is used to install a steering gear, the mud and water tank is connected to a spray assembly, the spray assembly is installed in the spray test box and is used to spray mud and water toward the steering gear.

[0006] The beneficial effects of the present invention are as follows: when conducting a durability test, the steering gear is first installed in a spray test box, and one end of a power system installed on the test bench base is extended into the spray test box and connected to the steering gear, the steering gear is steered by controlling the power system, and then muddy water for the test is added to the mud water tank, and the muddy water in the mud water tank is sprayed out and sprayed toward the steering gear through the spray assembly to carry out the test operation, and the steering gear is simulated to be sprayed with splashing water to quickly detect whether the steering gear is sealed, thereby improving the technical problems that the existing steering gear durability test method cannot simulate the rainy day test effect and the test efficiency is low.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes a hot air blower installed on the test bench base and an air inlet pipe with one end connected to the outlet end of the hot air blower, the other end of the air inlet pipe is connected to one side of the spray test box, and the other side of the spray test box is also connected to an exhaust pipe.

[0009] The beneficial effect of adopting the above further scheme is: during the test, the hot air blower is started and hot air is added into the spray test box through the air inlet pipe to adjust the temperature in the spray test box, simulate the working environment of the steering gear to be stable, and improve the test effect.

[0010] Furthermore, the spray test box is equipped with a temperature sensor.

[0011] The beneficial effect of adopting the above further scheme is that when hot air is added into the spray test box through the hot air blower and the air inlet pipe to adjust the temperature in the spray test box, the test temperature in the spray test box can be known at all times through the temperature sensor, thereby improving the test accuracy and test effect.

[0012] Furthermore, the spray assembly includes a water inlet pipe whose water inlet end is connected to the mud water tank, a diverter pipe installed in the spray test box, and at least one diverter connected to the diverter pipe. The water outlet end of the water inlet pipe extends into the spray test box and is connected to the diverter pipe. Each diverter is connected to at least one nozzle, and each nozzle is connected to a nozzle for opening toward the diverter.

[0013] The beneficial effect of adopting the above-mentioned further scheme is that the muddy water in the muddy water tank is sprayed out and sprayed toward the steering gear through the spray assembly. When the test operation is carried out, the muddy water in the muddy water tank is discharged into each diverter through the water inlet pipe and the diversion pipe, and the muddy water is diverted by each diverter and pressurized by each nozzle to be sprayed out from the nozzle and sprayed toward the steering gear to complete the muddy water spray test operation.

[0014] Furthermore, the spray assembly also includes a drain pipe with one end connected to the bottom of the spray test box, a return water tank with a water inlet end connected to the other end of the drain pipe, and a return water pipe with one end connected to the water outlet end of the return water tank, and the other end of the return water pipe is connected to the mud water tank.

[0015] The beneficial effect of adopting the above further scheme is that during the test, the muddy water in the spray test box can be discharged into the return water tank through the drain pipe for storage to achieve the emptying of the spray test box. At the same time, the muddy water in the return water tank can be discharged into the mud water tank through the return water pipe for recycling.

[0016] Furthermore, the spray test box includes a spray box body with an upper opening structure, a box cover with one end hinged to the open end of the spray box body, and at least one linear telescopic member, each of the linear telescopic members is hinged to the inner side of the open end of the spray box body, and the piston end is hinged to the inner side of the other end of the box cover, and the interior of the spray box body is used to install a steering gear.

[0017] The beneficial effect of adopting the above further scheme is: before the test, the box cover is opened by the linear telescopic part to facilitate the installation of the diverter in the spray box. During the test, the box cover can be closed by the linear telescopic part to seal the upper opening of the spray box to prevent mud and water from splashing out of the spray box during the test.

[0018] Furthermore, the spray test box also includes a plurality of fixtures which are spaced apart and installed on the bottom of the spray box body, and each of the fixtures is used to support each part of the diverter.

[0019] The beneficial effect of adopting the above further solution is: before testing, the steering gear is placed on the fixture so that the steering gear is stably supported by each fixture.

[0020] Furthermore, the mud water tank includes a mud water tank body and a spray pump installed on the mud water tank body, the water inlet end of the spray pump is connected to the inside of the mud water tank body through a pipeline, and the water outlet end is connected to the water inlet end of the spray assembly.

[0021] The beneficial effect of adopting the above further scheme is that during the test, the muddy water in the muddy water tank is pumped into the spray assembly by the spray pump, so as to complete the spray simulation operation of the steering gear through the spray assembly.

[0022] Furthermore, the test bench base is slidably connected to a bottom plate, the bottom plate is slidably connected to a mounting plate, the sliding directions of the bottom plate and the mounting plate are both horizontal and perpendicular to each other, the mounting plate is connected to a column, the column is vertically slidably connected to a support plate, and the support plate is used to support the power system.

[0023] The beneficial effect of adopting the above further scheme is that when the power system is supported by the test bench base, the height and angle of the power system can be adjusted by adaptively sliding the bottom plate, the mounting plate and the support plate in sequence to ensure the smooth progress of the test.

[0024] Furthermore, a turntable is fixedly connected to the lower end of the column, and the turntable is rotatably connected to the mounting plate; a rotary table is fixed to the side of the support plate away from the column, and the rotary table is used to support the power system.

[0025] The beneficial effect of adopting the above further solution is that during testing, the angle of the power system can be adjusted by rotating the turntable and / or by rotating the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an axonometric view of the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0028] Figure 3 It is a partial top view of the present invention;

[0029] Figure 4 for Figure 3 A partial enlarged view, mainly used to show the spray components;

[0030] Figure 5 It is a partial enlarged view of the present invention;

[0031] Figure 6 for Figure 5 A partial enlarged view of

[0032] Figure 7 for Figure 5 Another perspective structure diagram;

[0033] Figure 8 for Figure 7 A partial enlarged view of .

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Steering gear; 11. Middle connecting rod; 12. Sealing sleeve; 13. Tie rod; 14. Electromagnetic rotary damper;

[0036] 2. Power system;

[0037] 3. Test bench base; 31. Bottom plate; 311. X-direction guide rail; 312. X-direction screw; 313. Y-direction guide rail; 314. Y-direction screw; 32. Mounting plate; 33. Column; 331. Turntable; 332. Z-direction screw; 333. Turn handle; 34. Support plate; 35. Rotary table;

[0038] 4. Spray test box; 41. Spray box body; 411. Drawstring sleeve; 42. Box cover; 43. Linear telescopic parts; 44. Clamp;

[0039] 5. Mud and water tank; 51. Mud and water tank body; 52. Spray pump; 53. Stirring pump; 54. Liquid level sensor;

[0040] 6. Spray assembly; 61. Water inlet pipe; 62. Diverter pipe; 63. Diverter; 64. Spray pipe; 65. Spray head; 66. Drain pipe; 67. Return water tank; 68. Return water pipe;

[0041] 7. Hot air blower; 71. Air inlet pipe; 72. Air exhaust pipe; 73. Temperature sensor;

[0042] 8. Electrical cabinet; 81. Control cabinet. DETAILED DESCRIPTION

[0043] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0044] Example 1

[0045] like Figures 1 to 4 A passenger car steering gear mud and water spray durability test bench includes a test bench base 3, a spray test box 4 and a mud and water tank 5. The test bench base 3 is used to support a power system 2. The spray test box 4 is installed on the test bench base 3 and is used to install a steering gear 1. The mud and water tank 5 is connected to a spray component 6. The spray component 6 is installed in the spray test box 4 and is used to open toward the steering gear 1.

[0046] The beneficial effects of this embodiment are: when conducting a durability test, the steering gear 1 is first installed in the spray test box 4, and one end of the power system 2 installed on the test bench base 3 is extended into the spray test box 4 and connected to the steering gear 1, and the steering gear 1 is controlled by the power system 2 to steer, and then muddy water for the test is added to the mud water tank 5, and the muddy water in the mud water tank 5 is sprayed out and sprayed toward the steering gear 1 through the spray assembly 6 to carry out the test operation, and the steering gear 1 is simulated to be sprayed with splashing water to quickly detect whether the steering gear 1 is sealed, so as to improve the technical problems that the existing steering gear durability test method cannot simulate the rainy day test effect and the test efficiency is low.

[0047] On the basis of the above-mentioned embodiment, the passenger car steering gear muddy water spraying durability test bench of the present invention further includes an electrical cabinet 8 and a control cabinet 81. The electrical cabinet 8 is used to install power distribution components and high-voltage electrical components; the control cabinet 81 is used to install acquisition and control boards, industrial computers, screens and test piece power supplies, etc., and a PLC controller is arranged therein. The PLC controller of the control cabinet 81 controls the muddy water tank 5 to start, so as to transport the muddy water in the muddy water tank 5 to the spraying assembly 6, and the spraying operation is performed through the spraying assembly 6.

[0048] The steering gear 1 may include a middle connecting rod 11, a sealing sleeve 12 and a tie rod 13. The sealing sleeves 12 are connected to both ends of the middle connecting rod 11, and the tie rods 13 are connected to the outside of the sealing sleeve 12. The middle connecting rod 11 is connected to the power system 2 to drive the steering gear 1 to move, so as to simulate the running state of the car and facilitate water spraying detection. During the test, the sealing sleeve 12 can be subjected to a water spraying test.

[0049] Two electromagnetic rotary dampers 14 are installed at the bottom of the spray test box 4. Both electromagnetic rotary dampers 14 are equipped with rotatable resistance arm plates, and the resistance arm plates are connected to the ends of the tie rods 13 of the steering gear 1. The steering gear 1 is installed through the two electromagnetic rotary dampers 14 and the resistance arm plates.

[0050] The power system 2 includes a motor mounting seat, a servo motor, a speed torque sensor and a steering intermediate shaft. The servo motor is mounted on the motor mounting seat by bolts, one end of the speed torque sensor is connected to the power output shaft of the servo motor by a coupling, and the upper end of the steering intermediate shaft is connected to the other end of the speed torque sensor by a universal joint. The lower end of the steering intermediate shaft is connected to the steering gear 1 through a rotary transmission mechanism. It should be noted that the above connection methods are all existing conventional connection methods and will not be described in detail.

[0051] Example 2

[0052] like Figures 1 to 4 On the basis of Example 1, the passenger car steering gear mud and water spray durability test bench described in the present invention also includes a hot air blower 7 installed on the test bench base 3 and an air inlet pipe 71 whose one end is connected to the outlet end of the hot air blower 7, the other end of the air inlet pipe 71 is connected to one side of the spray test box 4, and the other side of the spray test box 4 is also connected to an exhaust pipe 72.

[0053] The beneficial effect of adopting the preferred scheme in the above embodiment is that during the test, the hot air blower 7 is started and hot air is added into the spray test box 4 through the air inlet pipe 71 to adjust the temperature in the spray test box 4, simulate the working environment of the steering gear 1 to be stable, and improve the test effect.

[0054] The hot air blower 7 can be communicatively connected to the control cabinet 81, so as to control the hot air blower 7 through the control cabinet 81. The hot air blower 7 can be an industrial hot air blower purchased from the market.

[0055] Figure 3 In the figure, the air inlet pipe 71 is routed from the right end of the test bench base 3 to the left end, and is connected to the left end of the spray test box 4 upward. Figure 1 In the embodiment, the upper end of the exhaust pipe 72 is connected to the right end of the spray test box 4, and the lower end is downwardly connected to the right end of the test bench base 3 to achieve exhaust.

[0056] Example 3

[0057] like Figure 3 On the basis of embodiments 1 and 2, the spray test box 4 is installed with a temperature sensor 73 .

[0058] The beneficial effect of adopting the preferred scheme in the above embodiment is that when hot air is added into the spray test box 4 through the hot air blower 7 and the air inlet pipe 71 to adjust the temperature in the spray test box 4, the test temperature in the spray test box 4 can be known at all times through the temperature sensor 73, thereby improving the test accuracy and test effect.

[0059] The temperature sensor 73 is communicatively connected to the control cabinet 81 to transmit the temperature in the spray test box 4 to the control cabinet 81 in real time, and the hot air blower 7 is controlled by the PLC controller of the control cabinet 81. Specifically, when the real-time temperature value measured by the temperature sensor 73 is lower than or higher than the preset temperature threshold, the hot air blower 7 can be controlled to be turned off by the PLC controller of the control cabinet 81.

[0060] Example 4

[0061] like Figures 1 to 8 On the basis of Examples 1-3, the spray assembly 6 includes a water inlet pipe 61 whose water inlet end is connected to the mud water tank 5, a diverter pipe 62 installed in the spray test box 4, and at least one diverter 63 connected to the diverter pipe 62. The water outlet end of the water inlet pipe 61 extends into the spray test box 4 and is connected to the diverter pipe 62. Each diverter 63 is connected to at least one nozzle 64, and each nozzle 64 is connected to a nozzle 65 for opening toward the diverter 1.

[0062] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the muddy water in the muddy water tank 5 is sprayed out and sprayed toward the steering gear 1 through the spray assembly 6 for testing, the muddy water in the muddy water tank 5 is discharged into each diverter 63 through the water inlet pipe 61 and the diverter pipe 62, and is diverted by each diverter 63 and pressurized by each nozzle 65, and is sprayed out from the nozzle 65 and sprayed toward the steering gear 1 to complete the muddy water spraying test operation.

[0063] As a specific solution of the above embodiment, a tee is provided at the middle end of the diverter pipe 62, and the tee has an opening, and the opening is connected to the water outlet end of the water inlet pipe 61. That is, the diverter pipe 62 is used as two sub-pipes, and one end of the two sub-pipes is respectively connected to the two water outlet ends of the tee.

[0064] Two flow dividers 63 are provided, and are respectively disposed at and connected to the two end ports of the flow divider pipe 62 .

[0065] Example 5

[0066] like Figures 1 to 8 On the basis of embodiments 1-4, the spray assembly 6 also includes a drain pipe 66 with one end connected to the bottom of the spray test box 4, a return water tank 67 with the water inlet end connected to the other end of the drain pipe 66, and a return water pipe 68 with one end connected to the water outlet end of the return water tank 67, and the other end of the return water pipe 68 is connected to the mud water tank 5.

[0067] The beneficial effect of adopting the preferred scheme in the above embodiment is that during the test, the muddy water in the spray test box 4 can be discharged into the return water tank 67 through the drain pipe 66 for storage, so as to empty the spray test box 4. At the same time, the muddy water in the return water tank 67 can be discharged into the muddy water tank 5 through the return water pipe 68 for recycling.

[0068] Based on the above embodiment, the bottom of the spray box 41 of the spray test box 4 is in an inverted cone shape, and one end of the drain pipe 66 is connected to the lowest point of the spray box 41 to ensure that the muddy water in the spray box 41 is fully discharged.

[0069] Example 6

[0070] like Figures 1 to 3 On the basis of Examples 1-5, the spray test box 4 includes a spray box body 41 with an upper opening structure, a box cover 42 with one end hinged to the open end of the spray box body 41, and at least one linear telescopic member 43, each linear telescopic member 43 is hinged to the inner side of the open end of the spray box body 41, and the piston end is hinged to the inner side of the other end of the box cover 42, and the interior of the spray box body 41 is used to install the steering gear 1.

[0071] The beneficial effect of adopting the preferred scheme in the above embodiment is that before the test, the box cover 42 is opened by the linear telescopic member 43 to facilitate the installation of the steering gear 1 in the spray box 41. During the test, the box cover 42 can be closed by the linear telescopic member 43 to seal the upper opening of the spray box 41 to prevent muddy water from splashing out of the spray box 41 during the test.

[0072] As a specific solution of the above embodiment, the linear telescopic member 43 can be a pneumatic cylinder or an electric cylinder, the cylinder body and the piston end of which are both rotatably connected to a cantilever plate, and the cantilever plate rotatably connected to the cylinder body is simultaneously hinged to the inner side of the opening end of the spray box 41, and the cantilever plate rotatably connected to the piston end is simultaneously hinged to the inner side of the other end of the box cover 42. The box cover 42 can be opened and closed by the extension and contraction of the linear telescopic member 43.

[0073] Among them, the side wall of the spray box body 41 is provided with a mounting hole, and a cuff 411 is installed on the mounting hole. The cuff 411 is made of silicone cloth, so that the power system 2 can be inserted into the spray box body 41 through the mounting hole and connected to the steering gear 1, and the cuff 411 is used for thermal insulation and sealing.

[0074] In the figure, two cuffs 411 are shown, and only one power system 2 is shown. In a specific test, the power system 2 can be set at both cuffs 411, or only at one cuff 411, and the other cuff 411 can be closed.

[0075] Example 7

[0076] like Figures 1 to 3 On the basis of embodiments 1-6, the spray test box 4 further includes a plurality of fixtures 44 spaced apart and mounted on the bottom of the spray box body 41 , and each fixture 44 is used to support each part of the steering gear 1 .

[0077] The beneficial effect of adopting the preferred solution in the above embodiment is that before testing, the steering gear 1 is placed on the fixtures 44 so that the steering gear 1 is stably supported by each fixture 44 .

[0078] As a specific solution of the above embodiment, each clamp 44 includes a clamp seat and two clamp rods which are vertically arranged and connected to the clamp seat at their lower ends. The upper ends of the two clamp rods are connected to the steering gear 1 to stably support the steering gear 1 through the two clamp rods.

[0079] Example 8

[0080] like Figure 1 and Figure 2 On the basis of Examples 1-7, the mud water tank 5 includes a mud water tank body 51 and a spray pump 52 installed on the mud water tank body 51. The water inlet end of the spray pump 52 is connected to the inside of the mud water tank body 51 through a pipe, and the water outlet end is connected to the water inlet end of the spray assembly 6.

[0081] The beneficial effect of adopting the preferred solution in the above embodiment is that during the test, the muddy water in the muddy water box 51 is pumped into the spray assembly 6 by the spray pump 52, so as to complete the spray simulation operation of the steering gear 1 through the spray assembly 6.

[0082] Based on the above embodiment, the mud and water tank 5 also includes a stirring pump 53 and a liquid level sensor 54 installed on the mud and water tank body 51, so that the mud and water in the mud and water tank body 51 can be stirred by the stirring pump 53 to prevent sedimentation, and at the same time, the mud and water liquid level height in the mud and water tank body 51 can be measured by the liquid level sensor 54.

[0083] As a specific solution of the above embodiment, the spray pump 52, the stirring pump 53 and the liquid level sensor 54 are all communicatively connected to the PLC controller of the control cabinet 81 so as to perform communication control through the PLC controller.

[0084] Example 9

[0085] like Figures 5 to 8 On the basis of Examples 1-8, the test bench base 3 is slidably connected to a bottom plate 31, and the bottom plate 31 is slidably connected to a mounting plate 32. The sliding directions of the bottom plate 31 and the mounting plate 32 are both horizontal and perpendicular to each other. The mounting plate 32 is connected to a column 33, and the column 33 is vertically slidably connected to a support plate 34, and the support plate 34 is used to support the power system 2.

[0086] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the power system 2 is supported by the test bench base 3, the height and angle of the power system 2 can be adjusted by adaptively sliding the bottom plate 31, the mounting plate 32 and the support plate 34 in sequence to ensure the smooth progress of the test.

[0087] On the basis of the above embodiment, two X-direction guide rails 311 are fixedly connected to the test bench base 3, and an X-direction screw rod 312 parallel to the X-direction guide rail 311 is rotatably connected, and the two ends of the lower side of the bottom plate 31 are respectively slidably connected to the two X-direction guide rails 311, and the middle end is threadedly connected to the X-direction screw rod 312. A handle is fixedly connected to one end of the X-direction screw rod 312, so that the bottom plate 31 slides along the direction of the X-direction guide rail 311 by rotating the handle to rotate the X-direction screw rod 312, thereby realizing the movement of the bottom plate 31.

[0088] A Y-direction guide rail 313 is fixedly connected to the upper side of the bottom plate 31, and a Y-direction screw rod 314 parallel to the Y-direction guide rail 313 is rotatably connected thereto, and both ends of the lower side of the mounting plate 32 are respectively slidably connected to the two Y-direction guide rails 313, and the middle end is threadedly connected to the Y-direction screw rod 314. A handle is fixedly connected to one end of the Y-direction screw rod 314, so that by rotating the handle, the Y-direction screw rod 314 is rotated, and the mounting plate 32 slides in the direction of the Y-direction screw rod 314, thereby realizing the movement of the mounting plate 32.

[0089] A slide groove is provided on one side of the column 33, and the slide groove passes through the column 33 and is slidably connected to the other side of the support plate 34. The column 33 is vertically rotatably connected to the Z-direction screw rod 332 in the slide groove, and the lower end of the Z-direction screw rod 332 is connected to a rotating handle 333 through a bevel gear set (two bevel gears mesh with each other), that is, one end of the rotating handle 333 is coaxially fixedly connected to a bevel gear, and the other bevel gear is coaxially fixedly connected to the lower end of the Z-direction screw rod 332; and the support plate 34 is threadedly connected to the Z-direction screw rod 332. By rotating the rotating handle 333, the Z-direction screw rod 332 is rotated through the transmission of the bevel gear set, thereby realizing the vertical movement of the support plate 34.

[0090] Example 10

[0091] like Figures 5 to 8 On the basis of Examples 1-9, a turntable 331 is fixedly connected to the lower end of the column 33, and the turntable 331 is rotatably connected to the mounting plate 32; a rotary table 35 is fixed to the side of the support plate 34 away from the column 33, and the rotary table 35 is used to support the power system 2.

[0092] The beneficial effect of adopting the preferred solution in the above embodiment is that during testing, the angle of the power system 2 can be adjusted by rotating the turntable 331 and / or by rotating the workbench 35.

[0093] On the basis of the above-mentioned embodiment, the other end of the rotating handle 333 is connected to the rotating disk 331 through a rotatably connected support block, so that the rotating handle 333 is stably installed.

[0094] The rotary table 35 is a worm gear mechanism well known to those skilled in the art, so its structure will not be described in detail here.

[0095] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0096] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0097] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0099] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0100] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A passenger car steering gear mud and water spray durability test bench, characterized in that: The invention comprises a test bench base (3), a spray test box (4) and a mud water tank (5), wherein the test bench base (3) is used to support a power system (2), the spray test box (4) is installed on the test bench base (3) and is used to install a steering gear (1), and the mud water tank (5) is connected to a spray assembly (6), and the spray assembly (6) is installed in the spray test box (4) and is used to spray mud water toward the steering gear (1).

2. A passenger car steering gear muddy water spray durability test bench according to claim 1, characterized in that: It also comprises a hot air blower (7) installed on the test bench base (3) and an air inlet pipe (71) one end of which is connected to the outlet end of the hot air blower (7); the other end of the air inlet pipe (71) is connected to one side of the spray test box (4); and the other side of the spray test box (4) is also connected to an exhaust pipe (72).

3. A passenger car steering gear muddy water spray durability test bench according to claim 2, characterized in that: The spray test box (4) is equipped with a temperature sensor (73).

4. The passenger car steering gear muddy water spray durability test bench according to claim 1, characterized in that: The spray assembly (6) comprises a water inlet pipe (61) whose water inlet end is connected to the mud water tank (5), a diverter pipe (62) installed in the spray test box (4), and at least one diverter (63) connected to the diverter pipe (62). The water outlet end of the water inlet pipe (61) extends into the spray test box (4) and is connected to the diverter pipe (62). Each diverter (63) is connected to at least one nozzle (64), and each nozzle (64) is connected to a nozzle (65) for opening toward the diverter (1).

5. A passenger car steering gear muddy water spray durability test bench according to claim 4, characterized in that: The spray assembly (6) further comprises a drainage pipe (66) having one end connected to the bottom of the spray test box (4), a return water tank (67) having a water inlet end connected to the other end of the drainage pipe (66), and a return water pipe (68) having one end connected to the water outlet end of the return water tank (67), and the other end of the return water pipe (68) is connected to the mud water tank (5).

6. The passenger car steering gear muddy water spray durability test bench according to claim 1, characterized in that: The spray test box (4) comprises a spray box body (41) with an upper opening structure, a box cover (42) with one end hinged to the open end of the spray box body (41), and at least one linear telescopic member (43), each of the linear telescopic members (43) being hinged to the inner side of the open end of the spray box body (41), and a piston end being hinged to the inner side of the other end of the box cover (42), and the interior of the spray box body (41) is used for installing a steering gear (1).

7. A passenger car steering gear muddy water spray durability test bench according to claim 6, characterized in that: The spray test box (4) further comprises a plurality of fixtures (44) which are arranged at intervals and installed on the bottom of the spray box body (41), and each of the fixtures (44) is used to support each part of the diverter (1).

8. The passenger car steering gear muddy water spray durability test bench according to claim 1, characterized in that: The mud water tank (5) comprises a mud water tank body (51) and a spray pump (52) mounted on the mud water tank body (51); a water inlet end of the spray pump (52) is connected to the interior of the mud water tank body (51) through a pipeline, and a water outlet end is connected to the water inlet end of the spray assembly (6).

9. A passenger car steering gear muddy water spray durability test bench according to any one of claims 1 to 8, characterized in that: The test bench base (3) is slidably connected to a bottom plate (31), and the bottom plate (31) is slidably connected to a mounting plate (32). The sliding directions of the bottom plate (31) and the mounting plate (32) are both horizontal and perpendicular to each other. The mounting plate (32) is connected to a column (33), and the column (33) is vertically slidably connected to a support plate (34), and the support plate (34) is used to support the power system (2).

10. A passenger car steering gear muddy water spray durability test bench according to claim 9, characterized in that: A turntable (331) is fixedly connected to the lower end of the column (33), and the turntable (331) is rotatably connected to the mounting plate (32); a rotary table (35) is fixed to the side of the support plate (34) away from the column (33), and the rotary table (35) is used to support the power system (2).

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