A system for testing the anti-puncture performance of automobile tires

Abstract

The present invention provides a vehicle tire anti-puncture performance testing system, which relates to the field of vehicle testing technology, including a testing platform, a mounting assembly is provided on the testing platform, the mounting assembly realizes the mounting of the vehicle tire through a lead screw and a threaded sleeve, a supporting structure is provided on the testing platform, the suspended end of the lead screw is supported by a supporting frame, a piercing assembly is provided above the mounting assembly, a lifting assembly is provided on the testing platform, and the lifting assembly realizes the lifting of the vehicle tire through a jack; and also includes a cleaning and lubricating assembly, which is used to clean and lubricate the lead screw of the mounting assembly. The present invention solves the technical problems that the vehicle tire anti-puncture testing device cannot adapt to vehicle tires of different specifications and sizes, the vehicle tire fixing structure is prone to bending, and when the vehicle tire is tested, a special person is required to lift it with the help of additional equipment.

Description

Technical Field

[0001] The invention belongs to the field of automobile detection, and in particular relates to an automobile tire anti-puncture performance detection system. Background Art

[0002] The main purpose of tire puncture resistance testing is to verify the tire's ability to resist puncture when encountering sharp objects, to ensure that the tire can still maintain good safety and stability under harsh road conditions. Through testing, the structural strength, material quality and design rationality of the tire can be evaluated, providing a scientific basis for the research and development, production and improvement of tires.

[0003] Existing tire anti-puncture performance testing devices usually use a fixed structure to support automobile tires. When automobile tires of different specifications and sizes need to be tested, it is impossible to effectively adjust according to the size of the automobile tires. At the same time, the existing testing devices use a cantilevered manner to fix the automobile tires. After frequent automobile tire testing, the fixed structure of the automobile tire is easily bent. When the automobile tire is installed on the testing device, it needs to be lifted with the help of additional equipment. The lifting equipment is complicated to operate and requires special personnel to operate. Summary of the invention

[0004] The present invention provides a vehicle tire anti-puncture performance detection system, which is used to solve at least one technical problem raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a vehicle tire anti-puncture performance testing system, comprising: a testing platform, a mounting assembly is provided on the testing platform, the mounting assembly realizes the mounting of the vehicle tire through a lead screw and a threaded sleeve, a supporting structure is provided on the testing platform, the suspended end of the lead screw is supported by a supporting frame, a piercing assembly is provided above the mounting assembly, and a lifting assembly is provided on the testing platform, and the lifting assembly realizes the lifting of the vehicle tire through a jack;

[0006] Also included is a cleaning and lubricating assembly, which is used to clean and lubricate the lead screw of the mounting assembly.

[0007] Preferably, the installation assembly includes a lead screw, which is threadedly connected in a threaded sleeve, both ends of the threaded sleeve are mounted on fixed bases, the fixed bases are bolted in the testing table, the end of the lead screw away from the threaded sleeve is fixedly connected to a flange wheel, a handle wheel is installed on the flange wheel, the lead screw is rotatably connected to a rotating sleeve, the rotating sleeve is sleeved with a car tire, and the car tire is connected to the flange wheel and the rotating sleeve by bolts.

[0008] Preferably, the supporting structure includes a supporting frame, the bottom end of the supporting frame is rotatably connected to the rotating shaft, the rotating shaft is arranged on the side of the detection platform, a limit block is installed on the supporting frame, a through hole is provided on the limit block, a horizontal sliding groove and a vertical sliding groove are provided on the side of the detection platform, a right wedge block is slidably connected in the horizontal sliding groove, a fork-shaped horizontal moving top rod is connected to the side of the right wedge block, the fork-shaped horizontal moving top rod and the through hole cooperate with each other, a compression elastic part is provided between the right wedge block and the horizontal sliding groove, a left wedge block is slidably connected in the vertical sliding groove, the right wedge block and the left wedge block are slidably connected between the contact inclined surfaces, and a connecting mechanism is provided at the top of the supporting frame.

[0009] Preferably, the connecting mechanism includes an open groove, which is arranged at the top of the support frame, a clamping groove is arranged above the open groove, the clamping groove is installed on the support frame, a return card is arranged in the clamping groove, the return card is rotatably connected to the support frame, a counterweight block rod is fixedly connected to the return card, the counterweight block rod and the clamping groove cooperate with each other, a groove is arranged below the open groove, the return card and the groove cooperate with each other.

[0010] Preferably, the piercing assembly includes a lifting platform, both sides of the lifting platform are threadedly connected to two electric lead screws, the two electric lead screws are rotatably connected to the detection platform, the lifting platform is symmetrically provided with slide rails, the slide rails are slidably connected to the piercing structure, the right side of the piercing structure is hingedly connected to connecting rod 1, the right end of the lifting platform is hingedly connected to connecting rod 2, connecting rod 1 and connecting rod 2 are both hingedly connected to the working end of the hydraulic telescopic rod, and the hydraulic telescopic rod is installed on the lifting platform.

[0011] Preferably, the puncture structure includes a puncture box, which is slidably connected to the slide rail, the puncture rod penetrates and is slidably connected to the puncture box, the top of the puncture rod is connected to a tooth column, the tooth column is slidably connected in the semicircular groove, the tooth column and the small gear of the coaxial gear are meshed with each other, the coaxial gear is rotatably connected in the puncture box, the large gear of the coaxial gear is meshed with the driving gear, the driving gear is installed at the output end of the driving motor, and the driving motor is installed on the puncture box.

[0012] Preferably, the lifting assembly includes a main frame, on which lifting rails are symmetrically installed, a lifting frame is slidably connected to the lifting rails, a limited roller is symmetrically rotatably connected to the lifting frame, a telescopic sleeve is installed on the top of the main frame, the telescopic sleeve cooperates with the lead screw, a lifting structure is provided under the lifting frame, and the lifting structure is installed on the main frame.

[0013] Preferably, the lifting structure includes jacks, which are symmetrically installed on the main frame. The piston rods of the jacks are connected with L-shaped connecting rods, and the other ends of the L-shaped connecting rods are connected to the lifting frame. The pressure rods of the two jacks are connected by a pedal, and a compression elastic member 2 is connected under the pedal, and the other end of the compression elastic member 2 is connected to the main frame.

[0014] Preferably, the cleaning and lubrication assembly includes a dust cover, which is hinged on the inspection table, a guide groove is provided below the lead screw, the guide groove is installed on the inspection table, a push rod is slidably connected in the guide groove, a compression elastic member three is provided between the push rod and the guide groove, a semicircular clamp is installed at the end of the push rod, a convex column is symmetrically fixed to the center of the semicircular clamp, ratchet cover plates are hinged at both ends of the semicircular clamp, a cleaning felt cloth is provided between the ratchet cover plate and the semicircular clamp, the cleaning felt cloth covers the surface of the semicircular clamp, and a lubrication structure is provided above the lead screw.

[0015] Preferably, the lubrication structure includes a semicircular threaded cover, which is fixed on the testing table and threadedly connected to the lead screw. A lubrication hole is provided on the semicircular threaded cover, in which a lubrication ball is nested, and the lubrication ball and the lubrication hole rotate relative to each other. The lubrication hole is connected to a vacuum lubrication tank, and the vacuum lubrication tank is placed in a rack, which is fixed on the testing table.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes the telescopic function through the rotation between the lead screw and the threaded sleeve. This design can not only utilize the self-locking property of the lead screw to ensure the stability between the lead screw and the threaded sleeve when the automobile tire is mounted, but also can be telescoped according to different sizes of automobile tires, thereby ensuring the universality of the detection device;

[0018] 2. The present invention adopts a support frame to support the lead screw, and this design can prevent the lead screw from bending after repeated automobile tire testing;

[0019] 3. The present invention adopts a jack as the main driving structure of the lifting assembly. This design can avoid the use of additional equipment to lift the automobile tire. In addition, the jack has low operating difficulty, high reliability, and is easy to operate, which can ensure the safety and reliability of the automobile tire lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0022] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0023] Figure 3 The structure of the present invention is schematically shown Figure 3 ;

[0024] Figure 4It is a structural schematic diagram of the puncture structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the lifting assembly of the present invention;

[0026] Figure 6 For the present invention Figure 2 A partial enlarged view of point A.

[0027] In the figure: 1. test bench; 2. mounting assembly; 21. lead screw; 22. threaded sleeve; 23. fixed seat; 24. flange wheel; 25. hand wheel; 26. rotating sleeve; 27. automobile tire; 3. supporting structure; 31. supporting frame; 32. rotating shaft; 33. limit block; 34. through hole; 35. horizontal slide groove; 36. vertical slide groove; 37. right wedge block; 38. fork-shaped horizontal push rod; 39. compression elastic member 1; 310. left wedge block; 4. connecting mechanism; 41. opening groove; 42. clamping groove; 43. return card; 44. counterweight stop rod; 45. groove; 5. piercing assembly; 51. lifting platform; 52. electric lead screw; 53. slide rail; 54. connecting rod 1; 55. connecting rod 2; 56. hydraulic telescopic rod; 6. piercing structure ;61. Piercing box;62. Piercing rod;63. Gear column;64. Semicircular groove;65. Coaxial gear;66. Driving gear;67. Driving motor;7. Lifting assembly;71. Main frame;72. Lifting rail;73. Lifting frame;74. Limit roller;75. ​​Telescopic sleeve;8. Lifting structure;81. Jack;82. L-shaped connecting rod;83. Pedal;84. Compression elastic part II;9. Cleaning and lubricating assembly;91. Dust cover;92. Guide groove;93. Push rod;94. Compression elastic part III;95. Semicircular card;96. Boss;97. Ratchet cover;98. Cleaning felt cloth;10. Lubrication structure;101. Semicircular threaded cover;102. Lubrication hole;103. Lubrication beads;104. Vacuum lubrication tank;105. Storage rack. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides the following embodiments

[0031] Example 1

[0032] The embodiment of the present invention provides a vehicle tire anti-puncture performance detection system, such as Figure 1-6 As shown, it comprises: a test platform 1, a mounting assembly 2 is provided on the test platform 1, the mounting assembly 2 realizes the mounting of the automobile tire 27 through a lead screw 21 and a threaded sleeve 22, a support structure 3 is provided on the test platform 1, the suspended end of the lead screw 21 is supported by a support frame 31, a piercing assembly 5 is provided above the mounting assembly 2, and a lifting assembly 7 is provided on the test platform 1, and the lifting assembly 7 realizes the lifting of the automobile tire 27 through a jack 81;

[0033] It also includes a cleaning and lubricating assembly 9, which is used to clean and lubricate the lead screw 21 of the mounting assembly 2.

[0034] The working principle and beneficial effects of the above technical solution are as follows: when the automobile tire 27 is tested for its anti-puncture performance, the operator first adjusts the mounting assembly 2 according to the size specifications of the automobile tire 27, and after the lead screw 21 is screwed out of the threaded sleeve 22 for a certain length, the operator rolls the automobile tire 27 into the lifting assembly 7, and after the automobile tire 27 is lifted to the height of the mounting assembly 2 by the jack 81 in the lifting assembly 7 as a drive, the operator pushes the automobile tire 27 onto the mounting assembly 2, and then rotates the support frame 31 to support the lead screw 21, and then the operator remotely controls the puncture assembly 5 to puncture the automobile tire 27, and after the automobile tire 27 is punctured, the automobile tire 27 is moved again into the lifting assembly 7, the pressure of the jack 81 is released, and the automobile tire 27 is lowered by its own weight;

[0035] The mounting assembly 2 of the present invention mounts the automobile tire 27 through the lead screw 21 and the threaded sleeve 22. This design can adapt to the sizes of different automobile tires 27 by rotating the lead screw 21, and due to the self-locking property of the thread, the lead screw 21 will not slip due to reduced friction after long-term use. After the lead screw 21 mounts the automobile tire 27, the mounting assembly 2 uses a support frame 31 to support it. This design can prevent the lead screw 21 from bending under the cantilever structure after frequent load mounting, and protect the horizontality of the lead screw 21. The lifting assembly 7 uses a jack 81 as a driving mechanism to lift the automobile tire 27. This design realizes the convenience of the lifting process of the automobile tire 27 and avoids the need for a dedicated person to operate a separate device to lift the automobile tire 27. At the same time, the cleaning and lubrication assembly 9 can clean and lubricate the lead screw 21 to prevent the lead screw 21 from accumulating oil and impurities during long-term use, and reduce the transmission friction between the lead screw 21 and the threaded sleeve 22.

[0036] Example 2

[0037] On the basis of Example 1, the mounting assembly 2 includes a lead screw 21, which is threadedly connected in a threaded sleeve 22, both ends of the threaded sleeve 22 pass through and are connected to the testing platform 1, and the fixed base 23 is bolted installed in the testing platform 1. The end of the lead screw 21 away from the threaded sleeve is fixedly connected to a flange wheel 24, and a handle wheel 25 is installed on the flange wheel 24. The lead screw 21 is rotatably connected to a rotating sleeve 26, and a car tire 27 is mounted on the rotating sleeve 26. The car tire 27 is connected to the flange wheel 24 and the rotating sleeve 26 by bolts.

[0038] The supporting structure 3 includes a supporting frame 31, the bottom end of the supporting frame 31 is rotatably connected to the rotating shaft 32, and the rotating shaft 32 is arranged on the side of the detection platform 1. A limit block 33 is installed on the supporting frame 31, and a through hole 34 is provided on the limit block 33. A horizontal sliding groove 35 and a vertical sliding groove 36 are provided on the side of the detection platform 1. A right wedge block 37 is slidably connected in the horizontal sliding groove 35, and a fork-shaped transverse moving top rod 38 is connected to the side of the right wedge block 37. The fork-shaped transverse moving top rod 38 and the through hole 34 cooperate with each other. A compression elastic member 39 is provided between the right wedge block 37 and the horizontal sliding groove 35, and a left wedge block 310 is slidably connected in the vertical sliding groove 36. The right wedge block 37 and the left wedge block 310 are slidably connected between the contact inclined surfaces, and a connecting mechanism 4 is provided at the top of the supporting frame 31.

[0039] The connecting mechanism 4 includes an open groove 41, which is arranged at the top of the support frame 31. A clamping groove 42 is arranged above the open groove 41, and the clamping groove 42 is installed on the support frame 31. A return card 43 is arranged in the clamping groove 42, and the return card 43 is rotatably connected to the support frame 31. A counterweight baffle rod 44 is fixedly connected to the return card 43, and the counterweight baffle rod 44 and the clamping groove 42 cooperate with each other. A groove 45 is arranged below the open groove 41, and the return card 43 and the groove 45 cooperate with each other.

[0040] The working principle and beneficial effects of the above technical solution are as follows: when the automobile tire 27 is tested for its anti-puncture performance, the operator first rotates the flange wheel 24 by turning the handle wheel 25 according to the size specifications of the automobile tire 27. Since the flange wheel 24 is fixedly connected to the lead screw 21, the lead screw 21 rotates synchronously. After the lead screw 21 is gradually rotated out of the threaded sleeve 22 to a certain size, the automobile tire 27 is sleeved on the rotating sleeve 26, and the automobile tire 27 and the rotating sleeve 26 are rotated to a specified angle, and then the automobile tire 27 is connected to the rotating sleeve 26 and the flange wheel 24 by bolts.

[0041] When the automobile tire 27 is installed on the lead screw 21, the operator rotates the support frame 31 90° to keep it vertical. The limit block 33 on the support frame 31 limits the rotation stroke of the support frame 31, and when the support frame 31 is rotated 90°, the limit block 33 squeezes the fork-shaped lateral push rod 38 so that the right wedge block 37 slides to the left along the transverse slide groove 35 and squeezes the compression elastic member 39, and the right wedge block 37 slides relative to the left wedge block 310, and the left wedge block 310 slides downward along the vertical slide groove 36. When the support frame 31 is rotated 90° in the opposite direction, the through hole 34 on the limit block 33 cooperates with the fork-shaped lateral push rod 38, and the compression elastic member 39 pushes the right wedge block 37 to slide to the right along the transverse slide groove 35. The left wedge block 310 is pressed against the right wedge block 37 and the right wedge block 37 is pressed against the left wedge block 37. The right wedge block 310 is pressed against the right wedge block 37 and the right wedge block 37 is pressed against the left wedge block 37. The left wedge block 310 is pressed against the right wedge block 37 and the right wedge block 37 is pressed against the right wedge block 37. The right wedge block 310 is pressed against the right wedge block 37 and the right wedge block 37 is pressed against the right wedge block 37.

[0042] When the support frame 31 supports the lead screw 21, as the support frame 31 rotates, the lead screw 21 is gradually embedded in the open groove 41. When the lead screw 21 enters the open groove 41, the lead screw 21 pushes the return card 43 to rotate upward in the clamping groove 42. When the lead screw 21 completely enters the open groove 41, the return card 43 loses the support of the lead screw 21. Under the gravity of the counterweight stop rod 44, the return card 43 rotates downward in the clamping groove 42 and is tangent to the lead screw 21. The counterweight stop rod 44 and the groove 45 limit the return card 43. When the support frame 31 is flattened, the operator lifts the counterweight stop rod 44 to make the return card 43 rotate upward, and then rotates the support frame 31 to make the lead screw 21 disengage from the open groove 41, and then releases the counterweight stop rod 44.

[0043] The present invention utilizes the lead screw 21 and the threaded sleeve 22 to achieve telescopic movement. This design can adapt and adjust various types of automobile tires 27, while preventing the relative friction force in the mounting assembly 2 from being reduced after the mounting assembly 2 has been used for a long time, and preventing the automobile tire from slipping when it is mounted. The design of the rotating sleeve 26 can not only adjust the angle of the automobile tire 27 after it is mounted on the lead screw 21, but also fix the automobile tire 27 by connecting with the studs of the flange wheel 24.

[0044] The present invention supports the lead screw 21 through the support frame 31, and this design can protect the lead screw 21 from bending. The support frame 31 adopts a rotating design, and the support frame 31 is rotated and stored when not in use, which will not affect the installation of the automobile tire 27. The limit block 33 and the fork-shaped lateral push rod 38 of the support frame 31 are locked to prevent the support frame 31 from rotating when supporting the lead screw 21. At the same time, the design of the left wedge block 310 and the right wedge block 37 uses an inclined surface to transfer the vertical displacement to the horizontal displacement, which is convenient for the operator to simply and quickly contact the locking of the support frame 31.

[0045] The present invention locks the lead screw 21 through the clamping groove 42 and the return card 43. The design can use the gravity of the return card 43 to lock the lead screw 21. The design has a simple structure, convenient operation, and high reliability. It can prevent the lead screw 21 from detaching from the support frame 31 when the automobile tire 27 is detected.

[0046] Example 3

[0047] On the basis of Example 1, the piercing assembly 5 includes a lifting platform 51, and the two sides of the lifting platform 51 are respectively threadedly connected to two electric lead screws 52, and the two electric lead screws 52 are rotatably connected to the detection platform 1. The lifting platform 51 is symmetrically provided with slide rails 53, and the slide rails 53 are slidably connected to the piercing structure 6. The right side of the piercing structure 6 is hingedly connected to a connecting rod 1 54, and the right end of the lifting platform 51 is hingedly connected to a connecting rod 2 55. Both the connecting rod 1 54 and the connecting rod 2 55 are hingedly connected to the working end of a hydraulic telescopic rod 56, and the hydraulic telescopic rod 56 is installed on the lifting platform 51.

[0048] The puncture structure 6 includes a puncture box 61, which is slidably connected to the slide rail 53. The puncture rod 62 penetrates and is slidably connected to the puncture box 61. A gear column 63 is connected to the top of the puncture rod 62. The gear column 63 is slidably connected in the semicircular groove 64. The gear column 63 is meshed with the small gear of the coaxial gear 65. The coaxial gear 65 is rotatably connected in the puncture box 61. The large gear of the coaxial gear 65 is meshed with the driving gear 66. The driving gear 66 is installed at the output end of the driving motor 67, and the driving motor 67 is installed on the puncture box 61.

[0049] The beneficial effects of the above technical solution are as follows: when the automobile tire 27 is subjected to anti-puncture detection, the electric lead screw 52 rotates to make the lifting platform 51 descend to a height matching the automobile tire 27, and the hydraulic telescopic rod 56 is actuated, and by extension or contraction, the connecting rod 1 54 and the connecting rod 2 55 are pulled, thereby pushing or pulling the puncture structure 6 to move left and right along the slide rail 53. After moving to a predetermined position, the driving motor 67 drives the driving gear 66 to rotate, and the driving gear 66 is meshed with the large gear of the coaxial gear 65. The large gear of the coaxial gear 65 transmits torque to the small gear of the coaxial gear 65, and the small gear is meshed with the tooth column 63. The tooth column 63 slides along the semicircular groove 64 under the action of the torque, and the tooth column 63 pushes the puncture rod 62 to puncture the automobile tire 27;

[0050] The present invention uses an electric lead screw 52 to drive the lifting platform 51 to move up and down. This design can bear the high reaction force of the puncture component 5 when puncturing the automobile tire 27, and the lead screw transmission has high transmission accuracy, can accurately control the lifting height of the lifting platform 51, has a long stroke, and can move over a long distance. The puncture structure 6 is driven by a slide rail 53 on the lifting platform 51, which can transmit the reaction force borne by the puncture structure 6 to the lifting platform 51. With the help of the hydraulic telescopic rod 56 and the connecting rod 1 54 and the connecting rod 2 55, the reaction force will not affect the displacement of the puncture structure 6.

[0051] The present invention adopts a tooth column 63 and a coaxial gear 65 to realize the lifting and lowering of the puncture rod 62. This design can effectively bear a large load, and the overall structure is relatively compact, which can be easily lifted and lowered by the lifting platform 51. At the same time, the tooth column 63 has high transmission efficiency, low cost and strong adaptability.

[0052] Example 4

[0053] On the basis of Example 1, the lifting assembly 7 includes a main frame 71, on which a lifting rail 72 is symmetrically installed, a lifting frame 73 is slidably connected to the lifting rail 72, and a limiting roller shaft 74 is symmetrically rotatably connected to the lifting frame 73. A telescopic sleeve 75 is installed on the top of the main frame 71, and the telescopic sleeve 75 cooperates with the lead screw 21. A lifting structure 8 is provided under the lifting frame 73, and the lifting structure 8 is installed on the main frame 71.

[0054] The lifting structure 8 includes a jack 81, which is symmetrically installed on the main frame 71. The piston rods of the jacks 81 are connected with L-shaped connecting rods 82, and the other ends of the L-shaped connecting rods 82 are connected to the lifting frame 73. The pressure rods of the two jacks 81 are connected by a pedal 83. A compression elastic member 84 is connected under the pedal 83, and the other end of the compression elastic member 84 is connected to the main frame 71.

[0055] The beneficial effects of the above technical solution are as follows: when it is necessary to inspect the automobile tire 27, the automobile tire 27 is rolled into the limiting roller shaft 74 between the main frames 71, so that the automobile tire 27 is stuck between the limiting roller shafts 74, and then the operator repeatedly steps on the pedal 83, the pedal 83 presses down the pressure rod to make the two jacks 81 pistons rise, and after releasing the pedal 83, the pedal 83 rises under the action of the compression elastic member 84, and the pedal 83 presses down again to make the two jacks 81 piston tops continue to rise, and the above process is repeated, and the jack 81 piston drives the L-shaped connecting rod 82 to rise, and the L-shaped connecting rod 82 is lifted. The shaped connecting rod 82 pulls the lifting frame 73 to slide and rise along the lifting rail 72 until the automobile tire 27 reaches the specified height, and the telescopic sleeve 75 extends and docks with the lead screw 21. The operator pushes the automobile tire 27 onto the lead screw 21, and then the telescopic sleeve 75 is reset. After the puncture detection of the automobile tire 27 is completed, the telescopic sleeve 75 docks with the lead screw 21 again, and the automobile tire 27 is recovered between the limiting rollers 74. After the operator releases the pressure of the two jacks 81, the lifting frame 73 descends along the lifting rail 72, and the automobile tire 27 is rolled out of the lifting assembly 7;

[0056] The present invention uses a limiting roller 74 to limit the position of the automobile tire 27. This design can not only limit the position of the automobile tire 27, but also allow the automobile tire 27 to easily roll between the limiting rollers 74. At the same time, the jack 81 is used as the driving structure of the lifting frame 73. This design can carry a higher load while being easy to operate, and can also use the deadweight of the automobile tire 27 to descend.

[0057] Example 5

[0058] On the basis of Example 1, the cleaning and lubrication assembly 9 includes a dust cover 91, which is hinged on the inspection platform 1. A guide groove 92 is provided below the lead screw 21, and the guide groove 92 is installed on the inspection platform 1. A push rod 93 is slidably connected in the guide groove 92, and a compression elastic member 94 is provided between the push rod 93 and the guide groove 92. A semicircular clamp 95 is installed at the end of the push rod 93, and a boss 96 is fixed symmetrically to the center of the semicircular clamp 95. Both ends of the semicircular clamp 95 are hinged with a ratchet cover plate 97, and a cleaning felt cloth 98 is provided between the ratchet cover plate 97 and the semicircular clamp 95. The cleaning felt cloth 98 covers the surface of the semicircular clamp 95, and a lubrication structure 10 is provided above the lead screw 21.

[0059] The lubrication structure 10 includes a semicircular threaded cover 101, which is fixed on the inspection table 1. The semicircular threaded cover 101 is threadedly connected to the lead screw 21. A lubrication hole 102 is provided on the semicircular threaded cover 101. A lubrication ball 103 is nested in the lubrication hole 102. The lubrication ball 103 and the lubrication hole 102 rotate relative to each other. The lubrication hole 102 is connected to a vacuum lubrication tank 104. The vacuum lubrication tank 104 is placed in a rack 105, and the rack 105 is fixed on the inspection table 1.

[0060] The beneficial effects of the above technical solution are as follows: when the lead screw 21 is rotated, the push rod 93, under the action of the compression elastic member 3 94, pushes the semicircular clamp 95 to press the lead screw 21, and the protruding column 96 on the semicircular clamp 95 is nested between the grooves of the lead screw 21, and the protruding column 96 presses the cleaning felt cloth 98 against the groove of the lead screw 21. As the lead screw 21 rotates, the cleaning felt cloth 98 wipes off the oil and impurities on the lead screw 21. When the cleaning felt cloth 98 cannot be used, the push rod 93 is pulled down and the ratchet cover plate 97 is rotated. After the cleaning felt cloth 98 is taken out and replaced, the ratchet cover plate 97 and the push rod 93 are reset.

[0061] When the lead screw 21 rotates, the semicircular threaded cover 101 is threadedly connected with the lead screw 21, the lubrication hole 102 is embedded with the lubrication ball 103, the lubrication ball 103 in the lubrication hole 102 and the lead screw 21 roll relative to each other, the lubrication grease in the vacuum lubrication tank 104 flows into the lubrication hole 102 under vacuum pressure, and the lubrication grease is applied to the lead screw 21 under the rotation of the lubrication ball 103. When the lubrication grease in the vacuum lubrication tank 104 is used up, a new vacuum lubrication tank 104 can be replaced;

[0062] The present invention uses the semicircular clamp 95 and the convex column 96 to press the cleaning felt cloth 98 to clean the lead screw 21. This design can effectively wipe off the oil and impurities between the grooves of the lead screw 21, avoiding the lead screw 21 from getting stuck due to the oil and impurities after long-term use, thereby ensuring the smooth rotation of the lead screw 21. At the same time, the design of the push rod 93 and the compression elastic member 94 can keep the convex column 96 and the lead screw 21 in dynamic contact, avoiding mechanical damage to the lead screw 21.

[0063] The present invention utilizes lubricating beads 103 and lubricating holes 102 to lubricate the lead screw 21. This design can lubricate the lead screw 21 while it is rotating, thereby reducing the friction between the lead screw 21 and the threaded sleeve 22 and improving the transmission efficiency between the lead screw 21 and the threaded sleeve 22.

[0064] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A vehicle tire anti-puncture performance testing system, characterized in that: include: A test bench (1), wherein a mounting assembly (2) is provided on the test bench (1), wherein the mounting assembly (2) is used to mount a vehicle tire (27) via a lead screw (21) and a threaded sleeve (22), wherein a support structure (3) is provided on the test bench (1), wherein the suspended end of the lead screw (21) is supported via a support frame (31), wherein a piercing assembly (5) is provided above the mounting assembly (2), and wherein a lifting assembly (7) is provided on the test bench (1), wherein the lifting assembly (7) is used to lift the vehicle tire (27) via a jack (81); Also included is a cleaning and lubricating assembly (9), which is used to clean and lubricate the lead screw (21) of the mounting assembly (2); The cleaning and lubricating assembly (9) comprises a dust cover (91), the dust cover (91) is hingedly connected to the detection platform (1), a guide groove (92) is provided below the lead screw (21), the guide groove (92) is mounted on the detection platform (1), a push rod (93) is slidably connected in the guide groove (92), a compression elastic member (94) is provided between the push rod (93) and the guide groove (92), a semicircular clamp (95) is installed at the end of the push rod (93), a convex column (96) is fixed symmetrically to the center of the semicircular clamp (95), ratchet cover plates (97) are hingedly connected at both ends of the semicircular clamp (95), a cleaning felt cloth (98) is provided between the ratchet cover plate (97) and the semicircular clamp (95), and the cleaning felt cloth (98) covers the surface of the semicircular clamp (95), and a lubrication structure (10) is provided above the lead screw (21); The lubrication structure (10) comprises a semicircular threaded cover (101), the semicircular threaded cover (101) is fixed on the inspection platform (1), the semicircular threaded cover (101) is threadedly connected to the lead screw (21), a lubrication hole (102) is provided on the semicircular threaded cover (101), a lubrication ball (103) is embedded in the lubrication hole (102), the lubrication ball (103) and the lubrication hole (102) are relatively rotatable, the lubrication hole (102) is connected to a vacuum lubrication tank (104), the vacuum lubrication tank (104) is placed in a storage rack (105), and the storage rack (105) is fixed on the inspection platform (1).

2. The automobile tire anti-puncture performance detection system according to claim 1, characterized in that: The mounting assembly (2) comprises a lead screw (21), the lead screw (21) being threadedly connected in a threaded sleeve (22), both ends of the threaded sleeve (22) being mounted on a fixed holder (23), the fixed holder (23) being bolted in the detection platform (1), one end of the lead screw (21) away from the threaded sleeve (22) being fixedly connected to a flange wheel (24), a handle wheel (25) being mounted on the flange wheel (24), the lead screw (21) being rotatably connected to a rotating sleeve (26), a car tire (27) being sleeved on the rotating sleeve (26), and the car tire (27) being connected to the flange wheel (24) and the rotating sleeve (26) by bolts.

3. The automobile tire anti-puncture performance detection system according to claim 1, characterized in that: The support structure (3) comprises a support frame (31), the bottom end of the support frame (31) is rotatably connected to a rotating shaft (32), the rotating shaft (32) is arranged on the side of the detection platform (1), a limit block (33) is installed on the support frame (31), a through hole (34) is arranged on the limit block (33), a horizontal slide groove (35) and a vertical slide groove (36) are arranged on the side of the detection platform (1), a right wedge block (37) is slidably connected in the horizontal slide groove (35), a fork-shaped lateral movable push rod (38) is connected on the side of the right wedge block (37), the fork-shaped lateral movable push rod (38) and the through hole (34) cooperate with each other, a compression elastic member (39) is arranged between the right wedge block (37) and the horizontal slide groove (35), a left wedge block (310) is slidably connected in the vertical slide groove (36), the right wedge block (37) and the left wedge block (310) are slidably connected between the contact inclined surfaces, and a connecting mechanism (4) is arranged at the top of the support frame (31).

4. The automobile tire anti-puncture performance detection system according to claim 3 is characterized in that: The connecting mechanism (4) comprises an opening groove (41), the opening groove (41) being arranged at the top end of the support frame (31), a clamping groove (42) being arranged above the opening groove (41), the clamping groove (42) being fixed on the support frame (31), a return card (43) being arranged in the clamping groove (42), the return card (43) being rotatably connected to the support frame (31), a counterweight blocking rod (44) being fixedly connected to the return card (43), the counterweight blocking rod (44) and the clamping groove (42) being matched with each other, a groove (45) being arranged below the opening groove (41), the return card (43) and the groove (45) being matched with each other.

5. The automobile tire anti-puncture performance testing system according to claim 1, characterized in that: The piercing assembly (5) comprises a lifting platform (51), the two sides of the lifting platform (51) are respectively threadedly connected to two electric lead screws (52), the two electric lead screws (52) are rotatably connected to the detection platform (1), the lifting platform (51) is symmetrically provided with slide rails (53), the slide rails (53) are slidably connected to the piercing structure (6), the right side of the piercing structure (6) is hingedly connected to a connecting rod 1 (54), the right end of the lifting platform (51) is hingedly connected to a connecting rod 2 (55), the connecting rod 1 (54) and the connecting rod 2 (55) are both hingedly connected to the working end of a hydraulic telescopic rod (56), and the hydraulic telescopic rod (56) is installed on the lifting platform (51).

6. The automobile tire anti-puncture performance testing system according to claim 5, characterized in that: The puncture structure (6) includes a puncture box (61), the puncture box (61) is slidably connected to the slide rail (53), the puncture rod (62) penetrates and is slidably connected to the puncture box (61), the top end of the puncture rod (62) is connected to a tooth column (63), the tooth column (63) is slidably connected in the semicircular groove (64), the tooth column (63) and the small gear of the coaxial gear (65) are meshed with each other, the coaxial gear (65) is rotatably connected in the puncture box (61), the large gear of the coaxial gear (65) and the driving gear (66) are meshed with each other, the driving gear (66) is installed at the output end of the driving motor (67), and the driving motor (67) is installed on the puncture box (61).

7. The automobile tire anti-puncture performance testing system according to claim 1, characterized in that: The lifting assembly (7) comprises a main frame (71), a lifting rail (72) is symmetrically mounted on the main frame (71), a lifting frame (73) is slidably connected to the lifting rail (72), a limited roller shaft (74) is symmetrically rotatably connected to the lifting frame (73), a telescopic sleeve (75) is mounted on the top of the main frame (71), the telescopic sleeve (75) cooperates with the lead screw (21), a lifting structure (8) is arranged below the lifting frame (73), and the lifting structure (8) is mounted on the main frame (71).

8. The automobile tire anti-puncture performance testing system according to claim 7, characterized in that: The lifting structure (8) includes a jack (81) which is symmetrically mounted on the main frame (71). The piston rods of the jacks (81) are connected to L-shaped connecting rods (82). The other ends of the L-shaped connecting rods (82) are connected to the lifting frame (73). The pressure rods of the two jacks (81) are connected via a pedal (83). A second compression elastic member (84) is connected below the pedal (83). The other end of the second compression elastic member (84) is connected to the main frame (71).

Images