Passenger vehicle steering gear muddy water spraying durability test bench

Abstract

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

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile steering gear detection technical field, especially a passenger car steering gear mud water spray endurance test bench. BACKGROUND

[0002] The chassis of passenger car is low, and the steering gear is installed on the chassis, which is inevitably splashed and soaked by the road mud in actual use, and if the sealing of the steering gear is not in place, the mud will enter the steering gear, and the rack and pinion gear tooth surface will be scratched and rusted, causing the steering gear to be stuck and not to return to normal. In the prior art, the sealing performance endurance test of the automobile steering gear is detected by manually operating the steering wheel, and the main disadvantage is that the rainy day test effect cannot be simulated, and the manual operation has high labor intensity, consumes manpower and has low test efficiency. SUMMARY

[0003] The utility model provides a passenger car steering gear mud water spray endurance test bench in view of the prior art steering gear endurance test mode which cannot simulate the rainy day test effect and has low test efficiency.

[0004] The utility model solves the technical scheme of the above technical problem:

[0005] A passenger car steering gear mud water spray endurance test bench, comprising a test bench base, a spray test box and a mud water tank, the test bench base is used for supporting a power system, the spray test box is installed on the test bench base and is used for installing a steering gear, the mud water tank is communicated with a spray assembly, the spray assembly is installed in the spray test box and is used for spraying mud water towards the steering gear.

[0006] The utility model has the advantages that during the endurance test, the steering gear is installed in the spray test box, one end of the power system installed on the test bench base is inserted into the spray test box and connected with the steering gear, the steering gear is controlled by the power system to steer, then the test mud water is added into the mud water tank, and the mud water in the mud water tank is sprayed out and towards the steering gear by the spray assembly to perform the test operation, the steering gear is simulated to be splashed by the water to quickly detect whether the steering gear is sealed, and the prior art steering gear endurance test mode which cannot simulate the rainy day test effect and has low test efficiency is improved.

[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0008] Further, a hot air blower and an air inlet pipe communicated with one end of the hot air blower outlet end are installed on the test bench base, the other end of the air inlet pipe is communicated with one side of the spray test box, and the other side of the spray test box is further communicated with an air outlet pipe.

[0009] The beneficial effect of the further scheme is that during the test, the hot air machine is started to add hot air into the spray test chamber through the air inlet pipe to adjust the temperature in the spray test chamber, simulate the working environment of the deflector, and improve the test effect.

[0010] Further, the spray test chamber is provided with a temperature sensor.

[0011] The beneficial effect of the further scheme is that when the hot air is added into the spray test chamber through the hot air machine and the air inlet pipe to adjust the temperature in the spray test chamber, the test temperature in the spray test chamber can be known at any time through the temperature sensor, thereby improving the test accuracy and test effect.

[0012] Further, the spray assembly comprises a water inlet pipe with one end connected to the sludge tank, a shunt pipe installed in the spray test chamber, and at least one shunt connected to the shunt pipe, the water outlet end of the water inlet pipe extends into the spray test chamber and is connected to the shunt pipe, each shunt is connected to at least one spray pipe, and each spray pipe is connected to a spray head for opening towards the deflector.

[0013] The beneficial effect of the further scheme is that when the sludge in the sludge tank is sprayed out and towards the deflector through the spray assembly to perform the test operation, the sludge in the sludge tank is discharged into each shunt through the water inlet pipe and the shunt pipe, and is sprayed out from the spray head and towards the deflector through the shunt of each shunt and the pressurization of each spray head to complete the sludge spray test operation.

[0014] Further, the spray assembly further comprises a drain pipe with one end connected to the bottom of the spray test chamber, a backwater tank with one end connected to the other end of the drain pipe, and a backwater pipe with one end connected to the water outlet end of the backwater tank, and the other end of the backwater pipe is connected to the sludge tank.

[0015] The beneficial effect of the further scheme is that during the test, the sludge in the spray test chamber can be discharged into the backwater tank through the drain pipe for storage to empty the spray test chamber, and at the same time, the sludge in the backwater tank can be discharged into the sludge tank through the backwater pipe for recycling.

[0016] Further, the spray test chamber comprises a spray chamber body with an open top structure, a chamber cover hinged to one end of the open end of the spray chamber body, and at least one linear expansion joint, each linear expansion joint is hinged to the inner side of the open end of the spray chamber body, and the piston end is hinged to the inner side of the other end of the chamber cover, and the inside of the spray chamber body is used to install the deflector.

[0017] The beneficial effect of the further scheme is that before the test, the box cover is opened by the linear expansion piece, so that the steering device is installed in the spray box body, and during the test, the box cover is closed by the linear expansion piece, so that the upper opening of the spray box body is closed, and the muddy water is prevented from splashing out of the spray box body during the test.

[0018] Further, the spray test box further comprises a plurality of clamps which are spaced apart and installed on the bottom of the spray box body, and each of the clamps is used for supporting a part of the steering device.

[0019] The beneficial effect of the further scheme is that before the test, the steering device is placed on the clamps, so that the steering device is stably supported by the clamps.

[0020] Further, the muddy water tank comprises a muddy water tank body and a spray pump which is installed on the muddy water tank body, and the water inlet end of the spray pump is communicated with the inside of the muddy water tank body through a pipeline, and the water outlet end is communicated with the water inlet end of the spray assembly.

[0021] The beneficial effect of the further scheme is that during the test, the muddy water in the muddy water tank body is pumped into the spray assembly by the spray pump, so that the spray simulation operation on the steering device is completed by the spray assembly.

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

[0023] The beneficial effect of the further scheme is that when the power system is supported by the test bench base, the height and the angle at which the power system is supported can be adjusted by adaptively sliding the bottom plate, the mounting plate and the support plate in sequence, so that the test is smoothly performed.

[0024] Further, the lower end of the stand column is fixedly connected with a rotating disc, the rotating disc is rotationally connected to the mounting plate, and the side, away from the stand column, of the support plate is fixedly connected with a rotary workbench, and the rotary workbench is used for supporting the power system.

[0025] The beneficial effect of the further scheme is that during the test, the angle of the power system can be adjusted by rotating the rotating disc and / or by the rotary workbench. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective view of the utility model;

[0027] Figure 2 It is a perspective view of the utility model; Figure 1 It is an enlarged view of A part in the middle;

[0028] Figure 3 is a partial view of the utility model;

[0029] Figure 4 is a partial enlarged view of the utility model; Figure 3 , mainly used for showing the spray assembly;

[0030] Figure 5 is a partial enlarged view of the utility model;

[0031] Figure 6 is a partial enlarged view of the utility model; Figure 5

[0032] Figure 7 is another perspective view of the utility model; Figure 5

[0033] Figure 8 is a partial enlarged view of the utility model. Figure 7 In the drawings, the components represented by each reference numeral are listed as follows:

[0034] 1, diverter; 11, middle connecting rod; 12, sealing sleeve; 13, cross pull rod; 14, electromagnetic rotary damper;

[0035] 2, power system;

[0036] 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, stand column; 331, rotary disc; 332, Z-direction screw; 333, rotary handle; 34, support plate; 35, rotary workbench;

[0037] 4, spray test box; 41, spray box body; 411, nozzle sleeve; 42, box cover; 43, linear telescopic component; 44, clamp;

[0038] 5, mud box; 51, mud box body; 52, spray pump; 53, stirring pump; 54, liquid level sensor;

[0039] 6, spray assembly; 61, water inlet pipe; 62, shunt pipe; 63, shunt; 64, spray pipe; 65, spray head; 66, drain pipe; 67, backwater tank; 68, backwater pipe;

[0040] 7, hot air machine; 71, air inlet pipe; 72, air outlet pipe; 73, temperature sensor;

[0041] 8, electrical cabinet; 81, control cabinet.

[0042] DETAILED DESCRIPTION

[0043] ​​​The principles and features of the utility model are described below, and the examples are used to explain the utility model and not to limit the scope of the utility model.

[0044] Embodiment 1

[0045] As Figures 1 to 4 A passenger car steering gear mud water spraying durability test bench, comprising a test bench base 3, a spraying test box 4 and a mud tank 5, the test bench base 3 is used for supporting a power system 2, the spraying test box 4 is installed on the test bench base 3 and is used for installing a steering gear 1, the mud tank 5 is communicated with a spraying assembly 6, the spraying assembly 6 is installed in the spraying test box 4 and is used for spraying mud in the mud tank 5 towards the steering gear 1.

[0046] The beneficial effects of the embodiment are that: when performing a durability test, the steering gear 1 is first installed in the spraying test box 4, and one end of the power system 2 installed on the test bench base 3 is inserted into the spraying test box 4 and connected with the steering gear 1, the steering gear 1 is controlled to steer by the power system 2, then test mud is added into the mud tank 5, and the mud in the mud tank 5 is sprayed out by the spraying assembly 6 and sprayed towards the steering gear 1 to perform a test operation, the steering gear 1 is simulated to be in a splashed water spraying state to quickly detect whether the steering gear 1 is sealed, and the technical problems that the existing steering gear durability test mode cannot simulate a rainy day test effect and has low test efficiency are improved.

[0047] On the basis of the above embodiment, the passenger car steering gear mud water spraying durability test bench further comprises an electrical cabinet 8 and a control cabinet 81, the electrical cabinet 8 is used for installing power distribution components and high-voltage electrical components; the control cabinet 81 is used for installing acquisition and control board cards, industrial personal computers, screens and test piece power supplies, and is provided with a PLC controller therein. The mud tank 5 is started by the PLC controller of the control cabinet 81 to deliver the mud in the mud tank 5 to the spraying assembly 6, and the spraying assembly 6 performs a spraying operation.

[0048] The steering gear 1 can comprise a middle connecting rod 11, a sealing sleeve 12 and a tie rod 13. The sealing sleeve 12 is connected to both ends of the middle connecting rod 11, and the tie rod 13 is connected to the outer side of the sealing sleeve 12. The middle connecting rod 11 is connected with the power system 2 and used to drive the steering gear 1 to move, so as to simulate the running state of a car and facilitate water spraying detection. The sealing sleeve 12 can be tested by spraying water during the test.

[0049] Two electromagnetic rotary dampers 14 are installed at the bottom of the spraying test box 4. The two electromagnetic rotary dampers 14 are each provided with a rotatable resistance arm plate, and the resistance arm plate is connected with the end of the tie rod 13 of the steering gear 1. The two electromagnetic rotary dampers 14 and the resistance arm plate are used to realize the installation of the steering gear 1.

[0050] The power system 2 comprises a motor mounting seat, a servo motor, a rotating speed torque sensor and a steering intermediate shaft, wherein the servo motor is mounted on the motor mounting seat through bolts, one end of the rotating speed torque sensor is connected with a power output shaft of the servo motor through a shaft coupling, and the upper end of the steering intermediate shaft is connected with the other end of the rotating speed torque sensor through a universal joint.

[0051] Embodiment 2

[0052] As Figures 1 to 4 On the basis of embodiment 1, the passenger car steering gear mud water spraying durability test bench further comprises a hot air machine 7 mounted on the test bench base 3 and an air inlet pipe 71 having one end communicated with the outlet end of the hot air machine 7, the other end of the air inlet pipe 71 being communicated with one side of the spraying test box 4, and the spraying test box 4 further having an air outlet pipe 72 communicated with the other side thereof.

[0053] The beneficial effect of the preferred scheme in the above embodiment is that during the test process, the hot air machine 7 is started to add hot air into the spraying test box 4 through the air inlet pipe 71 to adjust the temperature in the spraying test box 4, so as to simulate the stable working environment of the steering gear 1 and improve the test effect.

[0054] The hot air machine 7 can be communicatively connected to the control cabinet 81 to control the hot air machine 7 through the control cabinet 81.

[0055] Figure 3 The air inlet pipe 71 is routed from the right end to the left end of the test bench base 3 and connected to the left end of the spraying test box 4 upward. Figure 1 The upper end of the air outlet pipe 72 is connected to the right end of the spraying test box 4, and the lower end is connected to the right end of the test bench base 3 downward to realize air exhaust.

[0056] Embodiment 3

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

[0058] The beneficial effect of the preferred scheme in the above embodiment is that when hot air is added into the spraying test box 4 through the hot air machine 7 and the air inlet pipe 71 to adjust the temperature in the spraying test box 4, the test temperature in the spraying test box 4 can be understood at any time through the temperature sensor 73, so as to improve 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 PLC controller of the control cabinet 81 controls the hot air fan 7. Specifically, when the real-time temperature value measured by the temperature sensor 73 is lower than or higher than the preset temperature threshold, the PLC controller of the control cabinet 81 controls the hot air fan 7 to be closed.

[0060] Embodiment 4

[0061] As Figures 1 to 8 On the basis of embodiments 1-3, the spray assembly 6 comprises a water inlet pipe 61 having one end connected to the sludge tank 5, a shunt pipe 62 installed in the spray test box 4, and at least one shunt 63 connected to the shunt pipe 62. The water outlet end of the water inlet pipe 61 extends into the spray test box 4 and is connected to the shunt pipe 62. Each shunt 63 is connected to at least one spray pipe 64, and each spray pipe 64 is connected to a spray head 65 that opens towards the deflector 1.

[0062] The beneficial effects of the preferred scheme in the above embodiments are that when the sludge in the sludge tank 5 is sprayed out and towards the deflector 1 through the spray assembly 6 to perform test work, the sludge in the sludge tank 5 is discharged into each shunt 63 through the water inlet pipe 61 and the shunt pipe 62. Through the shunting of each shunt 63 and the pressurization of each spray head 65, the sludge is sprayed out from the spray head 65 and towards the deflector 1 to complete the sludge spray test work.

[0063] As a specific scheme of the above embodiments, a tee is provided at the middle end of the shunt pipe 62, and the tee has one opening that is connected to the water outlet end of the water inlet pipe 61. That is, the shunt pipe 62 serves as two sub-pipes, and one end of each of the two sub-pipes is connected to the water outlet end of the tee.

[0064] Two shunts 63 are provided and are connected to the two end ports of the shunt pipe 62.

[0065] Embodiment 5

[0066] As Figures 1 to 8 On the basis of embodiments 1-4, the spray assembly 6 further comprises a drain pipe 66 having one end connected to the bottom of the spray test box 4, a backwater tank 67 having a water inlet end connected to the other end of the drain pipe 66, and a backwater pipe 68 having one end connected to the water outlet end of the backwater tank 67. The other end of the backwater pipe 68 is connected to the sludge tank 5.

[0067] The beneficial effects of the preferred scheme in the above embodiments are that after the test, the sludge in the spray test box 4 can be discharged into the backwater tank 67 for storage to empty the spray test box 4, and at the same time, the sludge in the backwater tank 67 can be discharged into the sludge tank 5 through the backwater pipe 68 for recycling.

[0068] On the basis of the above-mentioned embodiments, the bottom of the spray test box 4 is in the shape of an inverted cone, and one end of the drain pipe 66 is connected to the lowest part of the spray box 41 to ensure that the water and mud in the spray box 41 are fully drained.

[0069] Embodiment 6

[0070] As Figures 1 to 3 On the basis of Embodiments 1-5, the spray test box 4 comprises a spray box 41 in the form of an open-top structure, a box cover 42 hingedly connected to one end of the open end of the spray box 41, and at least one linear extension and retraction device 43, each of which is hingedly connected to the inner side of the open end of the spray box 41 and the other end of the piston is hingedly connected to the inner side of the box cover 42, and the interior of the spray box 41 is used to install the steering gear 1.

[0071] The beneficial effects of using the preferred solution in the above-mentioned embodiments are that before testing, the box cover 42 is opened by the linear extension and retraction device 43 to facilitate the installation of the steering gear 1 in the spray box 41, and during testing, the box cover 42 can be closed by the linear extension and retraction device 43 to seal the open top of the spray box 41, preventing water and mud from splashing out of the spray box 41 during testing.

[0072] As a specific solution of the above-mentioned embodiments, the linear extension and retraction device 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 also hingedly connected to the inner side of the open end of the spray box 41, and the cantilever plate rotatably connected to the piston end is also hingedly connected to the inner side of the other end of the box cover 42. In this way, the opening and closing of the box cover 42 can be achieved by the extension and retraction of the linear extension and retraction device 43.

[0073] Among them, the side wall of the spray box 41 is provided with a mounting hole, and a mouthpiece sleeve 411 is mounted on the mounting hole, which is made of silica gel cloth to provide thermal insulation and sealing by inserting the power system 2 into the spray box 41 through the mounting hole to realize the connection with the steering gear 1.

[0074] In the figure, two mouthpiece sleeves 411 are shown, and only one power system 2 is shown. During specific testing, the power system 2 can be provided at both mouthpiece sleeves 411, or only at one of the mouthpiece sleeves 411, and the other mouthpiece sleeve 411 can be closed.

[0075] Embodiment 7

[0076] As Figures 1 to 3 On the basis of Embodiments 1-6, the spray test box 4 further comprises a plurality of clamps 44 spaced apart and mounted on the bottom of the spray box 41, each of which is used to support a part of the steering gear 1.

[0077] The beneficial effect of the preferred solution in the above embodiment is that before the test, the steering gear 1 is placed on the clamps 44 to stably support the steering gear 1 by the clamps 44.

[0078] As a specific solution of the above embodiment, each clamp 44 includes a clamp base and two clamp rods vertically arranged and connected to the clamp base at the lower end, and the upper end of the two clamp rods is connected to the steering gear 1 to stably support the steering gear 1 by the two clamp rods.

[0079] Embodiment 8

[0080] As Figure 1 and Figure 2 On the basis of embodiments 1-7, the mud tank 5 includes a mud tank body 51 and a spray pump 52 mounted on the mud tank body 51, the water inlet end of the spray pump 52 is communicated with the inside of the mud tank body 51 through a pipeline, and the water outlet end is communicated with the water inlet end of the spray assembly 6.

[0081] The beneficial effect of the preferred solution in the above embodiment is that during the test, the mud and water in the mud tank body 51 are pumped into the spray assembly 6 by the spray pump 52 to complete the spray simulation operation on the steering gear 1 by the spray assembly 6.

[0082] On the basis of the above embodiment, the mud tank 5 further includes a stirring pump 53 and a liquid level sensor 54 mounted on the mud tank body 51 to stir the mud and water in the mud tank body 51 by the stirring pump 53 to prevent sedimentation, and at the same time measure the liquid level of the mud and water in the mud tank body 51 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 for communication control by the PLC controller.

[0084] Embodiment 9

[0085] As Figures 5 to 8 On the basis of embodiments 1-8, the test bench base 3 is slidingly connected with a bottom plate 31, the bottom plate 31 is slidingly connected with 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 with a vertical column 33, and the vertical column 33 is vertically slidingly connected with a support plate 34, and the support plate 34 is used to support the power system 2.

[0086] The beneficial effect of the preferred solution 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 being supported can be adjusted by adaptively sliding the bottom plate 31, the mounting plate 32 and the support plate 34 in sequence, so as to ensure the smooth progress of the test.

[0087] On the basis of the above-mentioned embodiments, 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 rails 311 is rotatably connected, and the lower two ends of the bottom plate 31 are slidably connected to the two X-direction guide rails 311 respectively, 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 achieving 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, and the lower two ends of the mounting plate 32 are slidably connected to the two Y-direction guide rails 313 respectively, 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 the mounting plate 32 slides along the direction of the Y-direction screw rod 314 by rotating the handle to rotate the Y-direction screw rod 314, thereby achieving the movement of the mounting plate 32.

[0089] A sliding groove is formed on one side of the column 33, and the sliding groove is slidably connected to the other side of the support plate 34. A Z-direction screw rod 332 is vertically rotatably connected in the sliding 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 meshing with each other), that is, one end of the rotating handle 333 is coaxially fixedly connected to one 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 achieving the vertical movement of the support plate 34.

[0090] Embodiment 10

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

[0092] The beneficial effects of adopting the preferred scheme in the above-mentioned embodiments are that during testing, the angle of the power system 2 can be adjusted by rotating the rotating disc 331 and / or through the rotary workbench 35.

[0093] On the basis of the above-mentioned embodiments, the other end of the rotating handle 333 is connected to the rotating disc 331 through a rotatably connected support block, thereby achieving stable installation of the rotating handle 333.

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

[0095] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0096] In addition, the terms "first" and "second" are only for the purpose of description, and cannot 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" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0097] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0098] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0099] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0100] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A passenger car steering gear mud spray durability test bench, characterized in that, The test bench comprises a test bench base (3) for supporting a power system (2), a spray test box (4) mounted on the test bench base (3) and used for mounting a steering gear (1), and a mud water tank (5) communicated with a spray assembly (6) mounted in the spray test box (4) and used for spraying mud water towards the steering gear (1).

2. The passenger car steering gear muddy water spray durability test bench according to claim 1, characterized in that, The test bench further comprises a hot air blower (7) mounted on the test bench base (3) and a air inlet pipe (71) communicated with one end of the hot air blower (7), and the other end of the air inlet pipe (71) is communicated with one side of the spray test box (4), and the other side of the spray test box (4) is further communicated with an air outlet pipe (72).

3. The passenger car steering gear muddy water spray durability test bench according to claim 2, characterized in that, The spray test box (4) is mounted 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) communicated with the water inlet end of the mud water tank (5), a shunt pipe (62) mounted in the spray test box (4), and at least one shunt (63) communicated with the shunt pipe (62), the water outlet end of the water inlet pipe (61) extends into the spray test box (4) and is communicated with the shunt pipe (62), each shunt (63) is communicated with at least one spray pipe (64), and each spray pipe (64) is communicated with a spray head (65) used for opening towards the steering gear (1).

5. The passenger car steering gear muddy water spray durability test bench according to claim 4, characterized in that, The spray assembly (6) further comprises a drain pipe (66) communicated with one end of the bottom of the spray test box (4), a backwater tank (67) communicated with the water inlet end of the other end of the drain pipe (66), and a backwater pipe (68) communicated with the water outlet end of the backwater tank (67), and the other end of the backwater pipe (68) is communicated with 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) in an open-top structure, a box cover (42) hinged to one end of the open end of the spray box body (41), and at least one linear expansion piece (43), each linear expansion piece (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 inside of the spray box body (41) is used for mounting the steering gear (1).

7. The 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 clamps (44) arranged at intervals and mounted on the bottom of the spray box body (41), and each clamp (44) is used for supporting each part of the steering gear (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), and the water inlet end of the spray pump (52) is communicated with the inside of the mud water tank body (51) through a pipeline, and the water outlet end is communicated with the water inlet end of the spray assembly (6).

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

10. The passenger car steering gear muddy water spray durability test bench according to claim 9, characterized in that, The lower end of the vertical column (33) is fixedly connected with a rotating disc (331), the rotating disc (331) is rotatably connected to the mounting plate (32); the side, away from the vertical column (33), of the support plate (34) is fixedly connected with a rotary workbench (35), and the rotary workbench (35) is used for supporting the power system (2).

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