Tire bump pressure distribution testing device

Abstract

The utility model discloses a tire bump pressure distribution testing device, which relates to the technical field of tire pressure distribution testing and comprises a first adjusting base, the output end of the first adjusting base is provided with a testing platform used for testing pressure distribution of a tire to be tested, and a fixing block used for testing is arranged in the middle of the testing platform. A fixing base is arranged on the side face of the first adjusting base, a first rotating motor used for rotating a to-be-tested tire is arranged on the fixing base, the output end of the first rotating motor is fixedly connected with a rotating block, a pressure sensitive film is arranged on the surface of the test platform, the to-be-tested tire applies pressure to the pressure sensitive film, and micro capsules in the color generating layer are broken. The color generating substance reacts with the color growing layer, the color depth distribution on the pressure sensitive film is converted into pressure distribution by observing the color depth, and the pressure distribution of the contact surface when the tire presses the convex block object is tested by arranging the fixing block.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire pressure distribution test technical field, specifically a kind of tire boss pressure distribution testing device. BACKGROUND

[0002] The static pressure distribution of tire is the footprint formed after tire bears load and contacts ground, its shape and pressure distribution not only influence the wear, endurance, grip, wet slip and safety and other properties of tire, but also directly influence the carrying, traction and control performance of vehicle, the static pressure distribution test working condition of existing indoor tire is mostly tested under flat road, and the boss working condition lacks relevant test, especially the pressure distribution measurement of contact surface when tire is pressed over boss.

[0003] For example, the patent document with the announcement number CN219776968U records a kind of tire low-speed dynamic pressure distribution device, by adding a small dynamic pressure distribution assembly on existing rolling resistance testing machine to realize low-speed dynamic pressure distribution test, the dynamic pressure distribution assembly is composed of base, driving motor, guide rail, lead screw, contact type pressure measuring sensor and test platform, the test parameters such as ground shape, ground effective area, ground total area, ground length, ground width, shoulder ground length, ground pressure under the dynamic change of tire in the low-speed driving process of tire can be obtained by contact type pressure measuring sensor, the device is simple to use and does not need to increase special dynamic pressure distribution equipment, this tire low-speed dynamic pressure distribution device can only test the tire pressure distribution under flat environment, cannot measure the pressure distribution of contact surface when tire is pressed over boss, and the applicability is limited.

[0004] Based on this, a tire boss pressure distribution testing device is now provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of tire boss pressure distribution testing device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0007] A tire lug pressure distribution testing device, including a first adjusting base, a test platform for testing tire pressure distribution is arranged on the output end of the first adjusting base, a fixing block for testing is arranged in the middle of the test platform, a fixing seat is arranged on the side of the first adjusting base, a first rotating motor for rotating the tire to be tested is arranged on the fixing seat, the output end of the first rotating motor is fixedly connected with a rotating block, a pressure sensitive film is arranged on the surface of the test platform, a fixing mechanism for fixing the tire to be tested of any size is arranged on the rotating block, and the fixing mechanism includes connecting blocks, one end of the connecting blocks is fixedly connected with the surface of the rotating block, and the other end of the connecting blocks is fixedly connected with an adjusting assembly for adjusting the fixing range.

[0008] Based on the above technical scheme, the utility model further provides the following optional technical schemes:

[0009] In an optional scheme, the pressure sensitive film includes a polyester substrate, the polyester substrate is fixedly connected with the surface of the test platform, a color growth layer is arranged on the upper end of the polyester substrate, and a color generating layer is arranged on the upper end of the color growth layer.

[0010] In an optional scheme, the adjusting assembly includes an adjusting disc, the adjusting disc is fixedly connected with the connecting blocks, a plurality of sliding grooves are arranged on the surface of the adjusting disc, sliding rollers are slidably connected in the sliding grooves, rotating sleeves are rotatably connected with the sliding rollers, sliding blocks are fixedly connected with the rotating sleeves, and drive elements are rotatably connected with the side surface of the adjusting disc.

[0011] In an optional scheme, the drive elements include rotating discs, the sliding blocks are slidably connected with the rotating discs, the one end of the sliding blocks is fixedly connected with fixing plates, the fixing plates are fixedly connected with the fixing blocks for fixing the tire to be tested, and the rotating discs are fixedly connected with driving devices for driving the rotating discs to rotate.

[0012] In an optional scheme, the driving devices include second gears, the second gears are fixedly connected with the rotating discs, a first gear meshing with the second gears is arranged on the side surface of the second gears, the first gear is fixedly connected with the output end of a second rotating motor, and the fixed end of the second rotating motor is fixedly connected with the surface of the adjusting disc.

[0013] In an optional scheme, lubricating oil grooves are arranged in the sliding grooves.

[0014] In an optional scheme, anti-skid lines are arranged on the surface of the fixing blocks.

[0015] In an optional scheme, load sensors are arranged on the test platform.

[0016] Compared with the prior art, the utility model has the beneficial effects as follows:

[0017] 1. The utility model discloses a pressure sensitive membrane is applied to the pressure of the tire to be measured, makes the tiny capsule in the color generating layer break, makes the color generating material and the color growth layer react, through the observation of the depth of color, the color depth distribution on the pressure sensitive membrane is converted into pressure distribution, through setting fixed block to test the pressure distribution of the contact surface when the tire pressure passes the convex block object.

[0018] 2. The utility model discloses through the rotation of no. One gear and no. Two gear are driven by no. Two rotation motor, no. Two gear drives rotary disc and sliding block movement, sliding block drives rotary sleeve movement, rotary sleeve drives sliding roller to slide in sliding groove, sliding roller drives rotary sleeve movement in the sliding process, make rotary sleeve drive sliding block slide in rotary disc, sliding block drives fixed plate and fixed block movement to fix the tire to be measured in the movement process, convenient to fix the tire to be measured of different size. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural diagram of the utility model.

[0020] Figure 2 It is the structural diagram of the adjusting disc of the utility model.

[0021] Figure 3 It is the structural diagram of the rotary disc of the utility model.

[0022] Figure 4 It is the structural diagram of the color generating layer of the utility model.

[0023] Mark annotation: 101. no. One adjusting base, 102. test platform, 103. load sensor, 104. fixed seat, 105. no. One rotation motor, 106. rotation block, 107. tire to be measured, 201. connecting block, 202. adjusting disc, 203. sliding groove, 204. rotary sleeve, 205. rotary disc, 206. sliding block, 207. fixed plate, 208. fixed block, 301. no. Two rotation motor, 302. no. One gear, 303. no. Two gear, 401. color generating layer, 402. color growth layer, 403. polyester matrix. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the embodiment, and the utility model is further detailed.

[0025] In one embodiment, as Figures 1-3As shown, a tire bump pressure distribution test device, including a first adjusting base 101, the first adjusting base 101 is provided with a test platform 102 for testing the pressure distribution of the tire 107 to be tested, the test platform 102 is provided with a fixing block for testing in the middle, the first adjusting base 101 is provided with a fixed seat 104 on the side, the fixed seat 104 is provided with a first rotating motor 105 for rotating the tire 107 to be tested, the first rotating motor 105 is fixedly connected with a rotating block 106 at the output end, the surface of the test platform 102 is provided with a pressure sensitive film, the rotating block 106 is provided with a fixing mechanism for fixing the tire 107 to be tested of any size, the fixing mechanism includes a connecting block 201, one end of the connecting block 201 is fixedly connected with the surface of the rotating block 106, the other end of the connecting block 201 is fixedly connected with an adjusting assembly for adjusting the fixing range, the test platform 102 is driven up and down by the first adjusting base 101, the pressure sensitive film provided on the surface of the test platform 102 is in contact with the tire 107 to be tested, when the tire 107 to be tested is pressed on the surface and side of the fixing block, the pressure distribution test data of the tire 107 to be tested can be measured by the pressure sensitive film installed on the surface of the test platform 102, and the vertical load is provided by the load sensor 103 loading device;

[0026] In one embodiment, as shown in Figure 4 The pressure sensitive film includes a polyester matrix 403, the polyester matrix 403 is fixedly connected with the surface of the test platform 102, the polyester matrix 403 is provided with a color growth layer 402 at the upper end, the color growth layer 402 is provided with a color generating layer 401 at the upper end, under the action of the pressure of the tire 107 to be tested, the microcapsules in the color generating layer 401 are broken, and the color generating substance is extruded out and reacts with the color growth layer 402, the volume of the color generating substance extruded out of the microcapsules and the characteristics of the substance of the color growth layer 402 determine the depth of the color, by calibrating the relationship curve of different color depths and pressures, the color depth distribution on the pressure sensitive film can be converted into pressure distribution, the pressure sensitive film is equivalent to a pressure sensor array densely arranged by a large number of micro pressure sensors, and the pressure sensitive film method can observe the extremely detailed pressure distribution in the entire contact surface on the pressure distribution diagram;

[0027] In one embodiment, as shown in Figure 2As shown, the adjusting assembly comprises an adjusting disc 202 fixedly connected to the connecting block 201, the surface of the adjusting disc 202 is provided with a plurality of sliding grooves 203, the sliding grooves 203 are slidably connected to sliding rollers, the sliding rollers are rotatably connected to rotating sleeves 204, the rotating sleeves 204 are fixedly connected to sliding blocks 206, the side surface of the adjusting disc 202 is rotatably connected to a transmission element for transmitting power, the sliding of the sliding rollers in the sliding grooves 203 drives the rotating sleeves 204 to move, the movement of the rotating sleeves 204 adjusts the fixed range, and different sizes of the tire to be tested 107 are conveniently fixed;

[0028] In one embodiment, as shown in Figure 2 and Figure 3 As shown, the transmission element comprises a rotating disc 205, the sliding block 206 is slidably connected to the rotating disc 205, one end of the sliding block 206 is fixedly connected to a fixed plate 207, the fixed plate 207 is fixedly connected to a fixed block 208 for fixing the tire to be tested 107, the rotating disc 205 is fixedly connected to a driving device for driving the rotating disc 205 to rotate, the rotation of the rotating disc 205 drives the sliding block 206 to move, the sliding block 206 drives the rotating sleeve 204 to move, the rotating sleeve 204 drives the sliding roller to slide in the sliding groove 203, the sliding of the sliding roller in the sliding groove 203 drives the rotating sleeve 204 to move, the rotating sleeve 204 drives the sliding block 206 to slide in the rotating disc 205, the sliding block 206 drives the fixed plate 207 to move, the fixed plate 207 drives the fixed block 208 to move, the fixed block 208 fixes the tire to be tested 107, and different sizes of the tire to be tested 107 are provided with fixation;

[0029] In one embodiment, as shown in Figure 2 and Figure 3 As shown, the driving device comprises a second gear 303 fixedly connected to the rotating disc 205, the side surface of the second gear 303 is provided with a first gear 302 engaged with the second gear 303, the first gear 302 is fixedly connected to the output end of a second rotating motor 301, and the fixed end of the second rotating motor 301 is fixedly connected to the surface of the adjusting disc 202. The second rotating motor 301 drives the first gear 302 to rotate, the first gear 302 drives the second gear 303 to rotate, and the second gear 303 drives the rotating disc 205 to rotate, thereby providing power for fixing different sizes of the tire to be tested 107.

[0030] The above embodiment discloses a tire bump pressure distribution testing device, wherein the test platform 102 is driven up and down by the first adjusting base 101, the second rotating motor 301 is started, the first gear 302 is driven to rotate by the second rotating motor 301, the second gear 303 is driven to rotate by the first gear 302, the rotating disc 205 is driven to rotate by the second gear 303, the sliding block 206 is driven to move by the rotating disc 205, the rotating sleeve 204 is driven to move by the sliding block 206, the sliding roller is driven to slide in the sliding groove 203 by the rotating sleeve 204, the sliding roller is driven to move by the rotating sleeve 204, the sliding block 206 is driven to slide in the rotating disc 205 by the rotating sleeve 204, the fixed plate 207 is driven to move by the sliding block 206, the fixed block 208 is driven to move by the fixed plate 207, the tire 107 to be tested is fixed by the fixed block 208, different sizes of the tire 107 to be tested are provided with the fixing, after the tire 107 to be tested is fixed, the rotating block 106 is driven to rotate by the first rotating motor 105, the connecting block 201 is driven to rotate by the rotating block 106, the tire 107 to be tested is rotated, the pressure sensitive film arranged on the surface of the test platform 102 is in contact with the tire 107 to be tested, when the tire 107 to be tested presses the upper surface and the side surface of the fixed block, the pressure distribution test data of the tire 107 to be tested can be measured by the pressure sensitive film arranged on the surface of the test platform 102, the vertical load is provided by the load sensor 103 loading device, and the data is recorded.

[0031] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tire bump pressure distribution testing device, comprising a first adjusting base (101), wherein the output end of the first adjusting base (101) is provided with a test platform (102) for testing the pressure distribution of a tire (107) under test, a fixed block for testing is provided in the middle of the test platform (102), a fixed seat (104) is provided on the side of the first adjusting base (101), a first rotating motor (105) for rotating the tire (107) under test is provided on the fixed seat (104), and a rotating block (106) is fixedly connected to the output end of the first rotating motor (105), characterized in that, The test platform (102) is provided with a pressure-sensitive membrane on its surface. The rotating block (106) is provided with a fixing mechanism for fixing a test tire (107) of any size. The fixing mechanism includes a connecting block (201). One end of several connecting blocks (201) is fixedly connected to the surface of the rotating block (106), and the other end of the connecting block (201) is fixedly connected to an adjustment component for adjusting the fixing range.

2. The tire bump pressure distribution testing device according to claim 1, characterized in that, The pressure-sensitive membrane includes a polyester matrix (403), which is fixedly connected to the surface of the test platform (102). A color growth layer (402) is provided on the upper end of the polyester matrix (403), and a color generation layer (401) is provided on the upper end of the color growth layer (402).

3. The tire bump pressure distribution testing device according to claim 1, characterized in that, The adjustment assembly includes an adjustment disk (202), which is fixedly connected to a connecting block (201). The surface of the adjustment disk (202) is provided with a plurality of sliding grooves (203). A sliding roller is slidably connected in the sliding groove (203). The sliding roller is rotatably connected to a rotating sleeve (204). The rotating sleeve (204) is fixedly connected to a sliding block (206). A transmission element for transmitting power is rotatably connected to the side of the adjustment disk (202).

4. The tire bump pressure distribution testing device according to claim 3, characterized in that, The transmission element includes a rotating disk (205), a sliding block (206) slidably connected to the rotating disk (205), a fixing plate (207) fixedly connected to one end of the sliding block (206), a fixing block (208) fixedly connected to the fixing plate (207) for fixing the tire (107) to be tested, and a driving device for driving the rotating disk (205) to rotate.

5. The tire bump pressure distribution testing device according to claim 4, characterized in that, The driving device includes a second gear (303), which is fixedly connected to a rotating disk (205). A first gear (302) meshes with the second gear (303) on its side. The first gear (302) is fixedly connected to the output end of a second rotating motor (301). The fixed end of the second rotating motor (301) is fixedly connected to the surface of the adjusting disk (202).

6. The tire bump pressure distribution testing device according to claim 3, characterized in that, The sliding groove (203) is provided with a lubricating oil groove inside.

7. The tire bump pressure distribution testing device according to claim 4, characterized in that, The surface of the fixing block (208) is provided with anti-slip texture.

8. The tire bump pressure distribution testing device according to claim 1, characterized in that, The test platform (102) is equipped with a load sensor (103).

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