Mounting tool for three-petal type supporting body in automobile hub and using method

Abstract

The invention relates to an installation tool for a three-petal type supporting body in an automobile hub and a using method, and belongs to the technical field of automobile hub assembling. The mounting tool comprises a base plate part, an upper plate part and a transmission part, and is characterized in that the base plate part consists of a mounting base plate and lower base plate rotary clamping plates which are uniformly distributed on the mounting base plate according to an included angle of 120 degrees; the upper disc part consists of an upper pull disc and an upper pull disc rotary J-shaped pull hook; the transmission part is composed of a lengthening rod and a hydraulic rod, the hydraulic rod penetrates through the center hole of the upper pull disc, the tail of the hydraulic rod is in threaded connection with the internal thread of the cylinder, the tail end of the hydraulic rod is connected with one end of the lengthening rod, and the other end of the lengthening rod is connected with the center hole of the boss of the installation base plate. The tire opening device has the advantages that the tire is continuously opened to the maximum caliber in a short time and high safety degree by a single person, the three-section supporting body is placed in the tire, and the problems that a steel wire circle on the inner wall of the thin-wall tire is difficult to continuously and tangibly open, and a workpiece is prone to collapsing and flying in the installation process are solved.

Description

Technical Field

[0001] The invention relates to an installation tool for a three-petal support body inside an automobile wheel hub and a use method thereof, belonging to the technical field of automobile wheel hub assembly. Background Art

[0002] When a vehicle is driving at high speed, the tire will often burst, which will cause the vehicle to easily tilt or roll over. When the tire is deflated, the vehicle will be unable to drive and will have to wait for road rescue. The three-petal support inside the wheel hub can effectively solve the problem of tilting and rolling over when the vehicle is driving at high speed and the expensive road rescue costs caused by deflated tires.

[0003] When a tire of a vehicle is deflated, a vehicle equipped with a three-petal support body can travel more than 100 kilometers at a speed of 40 kilometers per hour. Since the gap between the outer circle of the three-petal support body and the inner wall of the tire crown is small, and the inner circle of the three-petal support body is very close to the wire ring in the tire triangle strip, it will cause great resistance to install all the three-petal support bodies inside the tire, especially the installation of the last petal support body. It is difficult to install it inside the tire and combine it with the other two petal support bodies without using other tools. Therefore, it is particularly important to design an installation tool that can expand the wire ring at the inner circle of the tire in a three-point manner. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that a three-petal support body is difficult to install into the inner wall of a tire, and to provide an installation tool and a method for using a three-petal support body inside a car wheel hub that can continuously and shapely open the inner wall of the tire to facilitate the installation of the three-petal support body.

[0005] The present invention is achieved by the following technical solutions: A mounting tool for a three-petal support body inside a car wheel hub, comprising a chassis part, an upper plate part, and a transmission part, wherein the chassis part is composed of a disc-shaped mounting chassis and lower chassis rotating clamping plates evenly distributed at an angle of 120 degrees on the mounting chassis, a boss is provided at the center of the mounting chassis, a center hole is opened on the boss, the lower chassis rotating clamping plate is a long strip plate, radially arranged on the mounting chassis, the inner end is hinged to the mounting chassis, the lower edge line of the outer end is presented in the form of a chamfered large rounded corner, and a limit stop is provided in the middle section of the lower chassis rotating clamping plate; the upper plate part is composed of an upper pull plate and The upper pull plate is composed of a rotating J-shaped hook. The upper pull plate is composed of a circular plate with a center hole and a cylinder with an internal thread connected to the center hole. Three support beams are evenly fixed on the circular plate according to the circumference. The support beams are arranged radially on the upper pull plate surface. A J-shaped hook is hinged at the lower outer end of each support beam, and the hook head of the J-shaped hook faces outward; the transmission part is composed of an extension rod and a hydraulic rod. The hydraulic rod passes through the center hole of the upper pull plate, and the tail end is threadedly connected to the internal thread of the cylinder, and the tail end is connected to one end of the extension rod, and the other end of the extension rod is connected to the center hole of the mounting chassis boss.

[0006] The inner end of the rotating card plate of the lower chassis is hinged with the mounting chassis by fixing two opposite first supporting bodies on the mounting chassis, the first supporting bodies are provided with hinge holes, hinge pins are fixed on both sides of the inner end of the rotating card plate of the lower chassis, the inner end of the rotating card plate of the lower chassis is placed between the two first supporting bodies, and the hinge pins are hinged correspondingly to the hinge holes; A limit stop is provided in the middle section of the rotating card plate of the lower chassis, and the limit stop is composed of two second support bodies and a stop pin. A limit hole is opened on the second support body, and the two second support bodies are opposite to each other and are respectively fixed on the mounting chassis on both sides of the rotating card plate body of the lower chassis, and the stop pin passes between the two opposite limit holes. When the rotating card plate body of the lower chassis is in contact with the mounting chassis surface, the stop pin is located above the rotating card plate body of the lower chassis.

[0007] The support beam is a U-shaped bent long groove.

[0008] The angle of the J-shaped hook head is 90 degrees to 80 degrees.

[0009] A method for using a mounting tool for a three-petal support body inside an automobile wheel hub: First: lay the tire flat, then place the two three-petal support bodies horizontally inside the tire, then place the chassis part in the hollow center of the tire, and then simultaneously place the three lower chassis rotating cardboards on the wire ring at the lower end of the tire, and use the stop pin of the limit stop to limit the lower chassis rotating cardboard; Step 2: Assemble the extension rod of the transmission part with the chassis part, and connect the hydraulic rod with the upper plate part through threads; Step 3: Assemble the hydraulic rod and the extension rod, and at the same time, hook the inner wall of the J-shaped hook head of the pull plate rotary hook assembly on the upper plate part onto the inner wall of the wire ring on the upper side of the tire; Step 4: Pump hydraulic oil into the transmission part through the hydraulic pump, continuously lift the upper pull plate rotating hook assembly, and continuously press the wire ring on the lower side of the tire with the lower chassis rotating clamp to support the inner wall of the tire to the maximum opening degree. Then put the third petal support body into the tire, and use the connecting parts to combine the three petal support bodies into one to complete the installation of the three petal support bodies.

[0010] The beneficial effects of the present invention are as follows: when the three-petal support body is installed into the tire, the steel wire ring on the inner wall of the tire has high rigidity; at the same time, the gap between the outer circle of the three-petal support body and the inner wall of the tire crown is small, and the inner circle of the three-petal support body is very close to the steel wire ring in the tire triangle strip, which results in a great resistance to installing the three-petal support body inside the tire. Therefore, during the installation process, without the tool of the present invention, a single person cannot complete the installation of the three-petal support body into the inner wall of the tire, and at least three people are required to complete the installation of the three-petal support body, which is time-consuming, has low installation efficiency, and has a high safety installation risk. By using the installation tool of the present invention and following the method of use of the present invention, a single person, in a short time, and with high safety, can continuously expand the tire to the maximum caliber, and it is easy to put the three-petal support body into the tire, solving the problem that the steel wire ring on the inner wall of the thin-walled tire is difficult to expand continuously and tangibly, and the workpiece is easy to collapse and fly during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of a tire; Figure 2 It is a three-petal support body stereogram; Figure 3 A three-dimensional diagram of a three-petal support body assembled inside a tire; Figure 4 A three-dimensional diagram of the installation tool of the present invention; Figure 5 It is a three-dimensional diagram of the chassis part of the present invention; Figure 6 A three-dimensional diagram of the installation chassis of the present invention; Figure 7 It is a three-dimensional diagram of the lower chassis rotating card plate of the present invention; Figure 8 It is a three-dimensional diagram of the shift pin of the present invention; Fig. 9 A three-dimensional diagram of the upper plate portion of the present invention; Fig.10 A three-dimensional diagram of the pull-up plate of the present invention; Fig.11 A three-dimensional diagram of a J-shaped retractor of the present invention; Fig.12It is a three-dimensional diagram of the transmission part of the present invention; Fig.13 A three-dimensional diagram of a hydraulic rod of the present invention; Fig.14 A three-dimensional diagram of an extension rod of the present invention; Fig.15 It is a stereoscopic diagram of the installation process of the installation tool, tire and three-petal support body of the present invention.

[0012] Among them: 1-1—tire wire ring, 1-2—inner wall of tire crown; 8-1—round plate, 8-2—threaded connection hole, 8-3—U-shaped bending long groove; 9-1—J-shaped hook head, 9-2—positioning nail; 11-1—hydraulic oil inlet, 11-2—hydraulic rod body, 11-3—threaded connection part, 11-4—positioning rod. 1—tire; 2—three-petal support body; 3—mounting chassis; 4—rotating clamping plate of lower chassis; 5—first support block; 6—second support block; 7—shift pin; 8—upper pull plate; 9—J-shaped hook; 10—upper pull plate lifting ear; 11—hydraulic rod; 12—extension rod. DETAILED DESCRIPTION

[0013] See attached Figure 4 The present invention comprises a chassis part, an upper plate part and a transmission part. The chassis part is composed of a disc-shaped mounting chassis 3 and a lower chassis rotating card plate 4 evenly distributed at an angle of 120 degrees on the mounting chassis. A boss is provided at the center of the mounting chassis, and a center hole is opened on the boss. The lower chassis rotating card plate 4 is a rectangular plate, which is radially arranged on the mounting chassis, the inner end is hinged to the mounting chassis, and the lower edge line of the outer end is presented in the form of a chamfered large rounded corner, and a limit stop is provided in the middle section of the lower chassis rotating card plate; the upper plate part is composed of an upper pull plate 8 and an upper pull plate rotating J-shaped hook 9, and the upper pull plate 8 is composed of a circular plate with a center hole and a cylinder with internal threads connected to the center hole. Three support beams are evenly fixed on the circular plate according to the circumference. The support beams are arranged radially on the upper pull plate surface. A J-shaped hook 9 is hinged at the lower outer end of each support beam, and the hook head of the J-shaped hook 9 faces outward; the transmission part is composed of an extension rod 12 and a hydraulic rod 11. The hydraulic rod 11 passes through the center hole of the upper pull plate, and the tail end is threadedly connected to the internal thread of the cylinder, and the tail end is connected to one end of the extension rod 11. The other end of the extension rod 11 is connected to the center hole of the mounting chassis boss.

[0014] See attached Figures 5 to 8, the specific structure of the chassis part: the first support block 5 is a rectangular plate with two chamfers on the short side, a circular hinge hole is opened in the middle of the rectangular plate, and hinge nails are welded and fixed on both sides of the inner end of the rotating clamp of the lower chassis; the second support block 6 is the same shape as the first support block 5, but the height of the second support block 6 is greater than the height of the first support block 5, and a limiting hole is opened on the second support block 6, and the height of the limiting hole is greater than the height of the hinge hole. First, three first support blocks 5 are evenly welded at an angle of 120 degrees to the upper part of the large disc of the mounting chassis 3 (close to the boss), and then three second support blocks 6 are evenly welded at an angle of 120 degrees to the middle part of the large disc of the mounting chassis 3, and one first support block 5 and one second support block 6 are a group, and the two support blocks in each group are on the same diameter of the large disc of the mounting chassis. Then, insert the hinge pins on one side of the inner ends of the three lower chassis rotating cardboards into the hinge holes of the first support block 5, and place the chamfered large rounded corners of the outer ends of the lower chassis rotating cardboard outside the large disc of the mounting chassis 3 and facing downward. Then insert the hinge holes of the three first support blocks 5 into the hinge pins at the other ends of the three lower chassis rotating cardboards respectively, weld the three first support blocks 5 with the large disc of the mounting chassis, complete the hinge connection between the lower chassis rotating cardboard and the mounting chassis 3, and then weld three second support blocks 6, and each of the second support blocks 6 welded before is on the same circumference line. Finally, insert the three stop pins 7 into the corresponding limiting holes of the second support blocks 6 respectively, and insert the standard part cotter pin at the same time, and the stop pin 7 is located above the lower chassis rotating cardboard. Among them: a pair of second support blocks 6 and a matching stop pin 7 located on both sides of the lower chassis rotating cardboard 4 constitute the limit stop of the lower chassis rotating cardboard.

[0015] See attached Figures 9-11 The upper plate part is a combination of an upper pull plate 8 and an upper pull plate rotating J-shaped hook 9. The upper pull plate 8 is composed of a circular plate 8-1 with a hole in the middle and a cylinder. The inner diameter of the cylinder is the same as the diameter of the center hole of the circular plate 8-1. The circular plate 8-1 and the cylinder are concentrically welded. The circular plate 8-1 and the cylinder are concentrically welded. The inner wall of the cylinder is processed into an internal thread to form a threaded connection hole 8-2. The three support beams made of U-shaped bent long grooves 8-3 are equally spaced at an angle of 120 degrees. The circular plates are welded and connected; a pair of upper pull plate ears 10 parallel to each other are welded at the lower outer end of each U-shaped bent long groove 8-3, and the upper pull plate ears 10 are provided with positioning holes, and a rotating J-shaped hook 9 on the upper pull plate is provided with positioning pins 9-2 on the left and right sides of the upper end of the J-shaped hook 9. The positioning pin 9-2 of each J-shaped hook 9 is hinged with a pair of upper pull plate ears 10, and the angle of the J-shaped hook head 9-1 is 90 degrees to 80 degrees, and the hook head 9-1 of the J-shaped hook 9 faces outward.

[0016] See attached Figures 12-14The transmission part is composed of an extension rod 12 and a hydraulic rod 11. The extension rod 12 is a variable diameter round rod. A circular deep hole is opened in the middle of the top of the large diameter end of the extension rod 12 along the length direction of the rod body. The small diameter end will be inserted into the center hole of the boss of the mounting chassis, and it is ensured that it reaches the required matching clearance; the hydraulic rod 11 is composed of a hydraulic oil inlet, a hydraulic rod body 11-2, a threaded connection part 11-3, and a positioning rod 11-4. The hydraulic rod 11 is threadedly connected to the threaded connection hole 8-2 of the upper pull plate of the upper plate part, and the hydraulic oil inlet 11-1 of the hydraulic rod is located at the top of the upper pull plate, and the positioning rod 11-4 of the hydraulic rod is inserted into the circular deep hole of the large diameter end of the extension rod.

[0017] See attached Figure 1 , 2 , 3, 4, 5, 9, 15 are assembled and used. First, the mounting chassis is machined to ensure its concentric circle; then three sets of lower chassis rotating cardboard rectangular plates, six first support blocks 5, second support blocks 6 and three shift pins are welded on the mounting chassis, and the distribution method is that the three sets of lower chassis rotating cardboards are evenly distributed at 120 degrees to form the chassis part, such as Figure 5 As shown. Next, the upper pull plate is made by machining, sheet metal bending and welding, and the three sets of U-shaped bending long grooves are evenly distributed around the circumference; then six upper pull plate ears and three J-shaped hooks are assembled on the upper pull plate by welding, and the J-shaped hooks are also evenly distributed at 120 degrees to form the upper plate part, as shown. Fig. 9 As shown. In the process of using the installation tool of the three-petal support body, the first step is: first put the two three-petal support bodies 2 into the tire 1, then place the tire 1 horizontally on the ground, and then place the chassis part in the middle of the tire 1. It should be noted that the lower chassis rotating card plate of the chassis part is pressed on the wire ring 1-1 on the lower side of the tire. The second step is to connect the upper pull plate 8 and the hydraulic rod 11 through the threaded part, the hydraulic oil inlet 11-1 at the upper end of the hydraulic rod is on the upper pull plate, and the small diameter end of the extension rod of the transmission part is inserted into the middle center hole of the installation chassis of the chassis part. The third step is to insert the small diameter of the hydraulic rod of the combination of the upper pull plate 8 and the hydraulic rod 11 into the extension rod, and the inner wall of the hook head 9-1 of the upper pull plate rotating J-shaped hook 9 is hooked on the inner wall of the wire ring 1-1 on the upper side of the tire, and the hydraulic rod 11 is matched with the extension rod 12. Step 4: Continuously pump hydraulic oil into the transmission part through the hydraulic pump, continuously lift the rotating J-shaped hook 9 of the upper pull plate, continuously press the wire ring on the lower side of the tire with the rotating clamping plate 4 of the lower chassis, support the inner wall of the tire to the maximum opening, and then put the last three-petal support body 2 into the tire, combine the three-petal support body into one with the connecting piece, and fit the three-petal support body with the inner wall 1-2 of the tire crown to complete the installation of the three-petal support body.

Claims

1. A mounting tool for a three-petal support body inside a car wheel hub, comprising a chassis part, an upper plate part, and a transmission part, characterized in that: The chassis part is composed of a disc-shaped mounting chassis and a lower chassis rotating card plate evenly distributed at an angle of 120 degrees on the mounting chassis. A boss is provided in the center of the mounting chassis, and a center hole is opened on the boss. The lower chassis rotating card plate is a long strip plate, which is radially arranged on the mounting chassis, the inner end is hinged with the mounting chassis, and the lower edge line of the outer end is presented in the form of a chamfered large fillet, and a limit stop is provided in the middle section of the lower chassis rotating card plate; the upper plate part is composed of an upper pull plate and an upper pull plate rotating J-shaped hook, and the upper pull plate is composed of a piece with a center hole. The utility model comprises a circular plate with a center hole and a cylinder with an internal thread connected to the center hole. Three support beams are evenly fixed on the circular plate according to the circumference. The support beams are radially arranged on the upper pull plate surface. A J-shaped hook is hinged at the lower outer end of each support beam, and the hook head of the J-shaped hook faces outward. The transmission part comprises an extension rod and a hydraulic rod. The hydraulic rod passes through the center hole of the upper pull plate, and the tail end is threadedly connected to the internal thread of the cylinder, and the tail end is connected to one end of the extension rod, and the other end of the extension rod is connected to the center hole of the mounting chassis boss.

2. The installation tool for the three-petal support body inside the automobile wheel hub according to claim 1 is characterized in that: The inner end of the rotating card plate of the lower chassis is hinged to the mounting chassis by fixing two opposite first support bodies on the mounting chassis, the first support bodies are provided with hinge holes, hinge pins are fixed on both sides of the inner end of the rotating card plate of the lower chassis, the inner end of the rotating card plate of the lower chassis is placed between the two first support bodies, and the hinge pins are hinged correspondingly to the hinge holes.

3. The installation tool for the three-petal support body inside the automobile wheel hub according to claim 1 is characterized in that: A limit stop is provided in the middle section of the rotating card plate of the lower chassis, and the limit stop is composed of two second support bodies and a stop pin. A limit hole is opened on the second support body, and the two second support bodies are opposite to each other and are respectively fixed on the mounting chassis on both sides of the rotating card plate body of the lower chassis, and the stop pin passes between the two opposite limit holes. When the rotating card plate body of the lower chassis is in contact with the mounting chassis surface, the stop pin is located above the rotating card plate body of the lower chassis.

4. The installation tool for the three-petal support body inside the automobile wheel hub according to claim 1, characterized in that: The support beam is a U-shaped bent long groove.

5. The installation tool for the three-petal support body inside the automobile wheel hub according to claim 1, characterized in that: The angle of the J-shaped hook head is 90 degrees to 80 degrees.

6. A method for using the installation tool for the three-petal support body inside the automobile wheel hub according to claim 1, characterized in that: first: Lay the tire flat, then place two three-petal support bodies horizontally inside the tire, then place the chassis part in the hollow center of the tire, and then simultaneously place three lower chassis rotating clamps on the wire ring at the lower end of the tire, and use the stop pin of the limit stop to limit the lower chassis rotating clamps; Step 2: Assemble the extension rod of the transmission part with the chassis part, and connect the hydraulic rod with the upper plate part through threads; Step 3: Assemble the hydraulic rod and the extension rod, and at the same time, hook the inner wall of the J-shaped hook head of the pull plate rotary hook assembly on the upper plate part onto the inner wall of the wire ring on the upper side of the tire; Step 4: Pump hydraulic oil into the transmission part through the hydraulic pump, continuously lift the upper pull plate rotating hook assembly, and continuously press the wire ring on the lower side of the tire with the lower chassis rotating clamp to support the inner wall of the tire to the maximum opening degree. Then put the third petal support body into the tire, and use the connecting parts to combine the three petal support bodies into one to complete the installation of the three petal support bodies.

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