CN210526183U

CN210526183U - Pre-tightening type bent plate tire

Info

Publication number: CN210526183U
Application number: CN201921255891.XU
Authority: CN
Inventors: 齐克岐
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-15
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a pre-tightening type bent plate tire, which comprises a rim, a wheel sheet group arranged on the outer surface of the rim, a ring belt and tread rubber which are sequentially arranged on the periphery of the wheel sheet group, wherein the outer ring surface of the rim is provided with 3 or more mounting grooves along the axial direction and a plurality of radial through holes along the radial direction; the wheel set is composed of a plurality of S-shaped wheel pieces, each wheel piece is divided into an installation section, a neck bend, a straight section, a shoulder bend and a working section, the installation section is provided with an installation hole and a tensioning hole, the working section is provided with a fixing hole and a hollow hole, each wheel piece in the wheel set is enveloped with an outer ring body along the outer surface of a rim, each wheel piece installation section is in lap joint with an adjacent wheel piece installation section in the inner cavity of the outer ring body, and the tensioning hole of each wheel piece, the installation hole of the adjacent wheel piece and the radial through hole are fixed together through fasteners. The tire has reliable safety and durability, and good handling and grip performance.

Description

Pre-tightening type bent plate tire

Technical Field

The utility model relates to a non-pneumatic tire makes technical field, concretely relates to pretension formula bent plate tire.

Background

The currently widely used pneumatic tire has a mature technology and a simple structure after being developed for more than a hundred years, has good elasticity from the whole to the local aspects, but has a complex manufacturing process, particularly after being developed to a radial tubeless tire, and has long-term stagnation of corresponding technical improvement of the pneumatic tire, particularly the vicious diseases of air inflation leakage and tire burst of the pneumatic tire in the aspect of meeting the increasingly severe requirements of vehicles on the tire, such as high speed, heavy load, durability, comfort and safety, and the like, so that a user is always worried about driving accidents while being deeply inconvenienced. Therefore, many people develop ways to thoroughly reform the tire structure in a non-inflatable bearing mode. Can regard as among the non-pneumatic tire technical scheme of current the utility model discloses the background art is: firstly, a plurality of polyethylene radial plates are vertically arranged between a hub and a cylindrical tread of a tweel tire developed by French Michelin company, the middle sections of the radial plates penetrate through a shearing ring and then are branched to extend to the tread, the load of the tire is supported by the radial plates, and a rim is also elastically deformable; secondly, in a spoke type tire developed by the company Prisiton, Japan, two groups of C-shaped thermoplastic spokes are obliquely arranged on the outer part of a rim in clockwise and anticlockwise directions respectively, and the load of the wheel is supported by the spokes; thirdly, a spring tyre (ZL 201410135967) developed by Mr. Vanzelin, China is characterized in that a round spring steel sheet is embedded in the tyre surface, the steel sheet is connected with an S-shaped spring steel sheet through an arc spring steel sheet, and a shock absorber is arranged in the S-shaped spring steel sheet and is fixedly connected with a wheel hub; and fourthly, the inclined rolling type non-pneumatic tire (ZL 201611116890.8) developed by China university of northcentral China is characterized in that two ends of a plurality of twisted spring plates are respectively installed on rims to respectively form an annular frame, the spring plates and an axle form an acute angle, and the plurality of spring plates are in contact with the ground to bear and stably transfer wheel loads. The practicability of the tire is not ideal, and the tire has a serious defect that the adopted elastic bearing parts are all built in a building block type stacking mode along the circumferential surface of a rim or a hub, full pre-tightening is not performed, the elastic bearing parts have to be designed to be large or numerous in order to deal with the impact of heavy load or high-speed jolt, the structural defects cause that the tire is not easy to dissipate heat or drain water in the operation process, and once foreign matters such as silt enter a tire body, the normal performance of the functions of the tire is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect, the utility model aims at providing a pretension formula bent plate tire, the utility model discloses based on regard as an annular air spring's understanding pneumatic tire, under the theoretical guidance of "tire inflation = spring pretension", adopt the technical route that tire function decomposes and the replacement, divide the tire function into: "spring load + grip properly" two parts, a technical practice. Specifically, the fully pre-tightened S-shaped continuous bending plate spring combination is adopted to equivalently replace the elastic bearing function of the pneumatic tire, namely: vertical elastic support and longitudinal drive (brake), and the tread toe separation and built-in steel wool support cavity technology is adopted to improve the ground gripping performance of the tire, and meanwhile, the heat dissipation capability of the tire is improved, so that the durability of the tire is improved. Is a follow-up utility model of two prior patent plate type tires (ZL 02147721.3) and a bent plate type tire (ZL 201610092648.5).

The utility model has simple and reasonable structure, adopts the S-shaped bending plate spring assembly with less quantity and thinner material, the spring assembly is a wheel sheet group consisting of a plurality of wheel sheets, is fully pre-tightened and is arranged on the outer ring surface of the rim, when the vehicle starts, runs or brakes, the circumferential tangential arrangement of each plate spring working section ensures that the supporting elastic force provided by the plate spring working section can be stably transmitted mutually, and the integral supporting elastic force is enough to bear the vertical load of the tire; the S-shaped plate spring which is arranged in the circumferential direction provides enough longitudinal rigidity and good longitudinal flexibility at the same time, so that the driving and braking performance of the wheel is improved; at the same time, it has sufficient lateral strength to produce only a small amount of lateral deformation when the tire is subjected to a lateral load, which improves the handling of the wheel; in addition, the toe separating structure of the tire and the steel wool filled cavity structure of the tire improve the ground gripping performance of the tire, enhance the heat radiation performance of the tire and further improve the durability, so that the tire can safely and durably run in various complex and severe environments such as high speed, heavy load, sharp stone pavement, high temperature, severe cold, deep water, tracks and the like.

In order to achieve the above purpose, the utility model discloses the technical scheme that the preparation of tire was taken is: a pre-tightening type bent plate tire comprises a rim, a wheel sheet group arranged on the outer surface of the rim, an annular belt and tread rubber which are sequentially arranged on the periphery of the wheel sheet group, wherein the outer annular surface of the rim is provided with 3 or more mounting grooves along the axial direction and a plurality of radial through holes along the radial direction; the wheel set consists of a plurality of S-shaped wheel sheets, each wheel sheet is divided into an installation section, a neck bend, a straight section, a shoulder bend and a working section, the installation section is provided with an installation hole and a tensioning hole, the working section is provided with a fixing hole and a hollow hole, each wheel sheet in the wheel set is enveloped with an outer ring body along the outer surface of a rim, and each wheel sheet installation section is lapped on an adjacent wheel sheet installation section in the inner cavity of the outer ring body, so that the tensioning hole of each wheel sheet, the installation hole of the adjacent wheel sheet and a radial through hole are fixed together through fasteners; the ring belt is provided with a riveting hole connected with the fixing hole in a matching way and a heat dissipation hole corresponding to the hollow hole, and steel wool is adhered to the heat dissipation hole; coating a base rubber on the exterior of the girdle band and wrapping the girdle band with a steel wire mesh layer, coating a shaping rubber after winding a steel wire cord on the exterior of the steel wire mesh layer, and adhering a tread rubber on the exterior of the shaping rubber to form a tire in a fully pre-tightening state in use; each wheel sheet and each ring belt are made of elastic plates.

Furthermore, a groove is formed in the middle of the working section of the wheel sheet to form two or more sub-toes, the outer sides of the sub-toes on the two sides adopt a web-shaped widening structure, fixing holes and hollow holes are formed in the positions, close to the tail ends of the working section, of the sub-toes, and positioning holes are further formed in the working section.

The neck bend of the wheel sheet is a circular arc with a smaller radius, and the shoulder bend of the wheel sheet is a circular arc with a larger radius; under the pre-tightening state, the working sections of the wheel sheets are wrapped by a circular ring surface on the periphery of the wheel.

And compression springs or rubber blocks are additionally arranged on the inner sides of the neck bends and the shoulder bends of the wheel sheets.

When the tread rubber is manufactured, a steel wire framework is arranged in the tread rubber, and the convex part of the steel wire framework corresponds to the convex part of the tread rubber pattern block.

The utility model discloses a make through following step:

1) the blank of the wheel sheet is generally made by stamping a spring steel plate, is prefabricated into a straight shape or a tangent function curve shape, and then a neck bend, a shoulder bend and a working section part of the blank are made into a guide arc so as to ensure that the part can form a radian meeting requirements during subsequent manufacturing; after quenching and shot blasting are carried out on the wheel piece blank, copper is plated on the surface of the wheel piece blank as a whole, and chromium or nickel is plated on the wheel piece blank except the working section and the working section, so that the material preparation of the wheel piece is completed;

2) inserting the wheel sheet working section into the mounting box, positioning the positioning hole on the positioning pin of the mounting box, applying pressure to the working section from the wheel sheet mounting section, fully pre-tightening the wheel sheet, bending and compressing the wheel sheet into an S shape, and inserting a safety pin; riveting or welding, bonding and impressing the working section of the wheel sheet on the inner surface of the annular belt; after each wheel working segment of the whole wheel set is connected to the ring belt, the tire supporting device is used for supporting the inner cavity ring surface enveloped by the mounting segment of each wheel, the tire seat is placed in the circular space of the inner cavity ring surface, the fastening piece is used for fastening through the mounting hole, the tensioning hole of each wheel and the radial through hole on the tire seat, the safety pin is pulled out, the mounting box is removed, and the pre-tightened wheel set is manufactured;

3) coating base glue on two circumferential sides of the outer surface of the ring belt provided with the wheel sheet set, and sticking strip-shaped steel wool on the edges of the heat dissipation holes in the middle of the ring belt so as to fill the steel wool on the whole heat dissipation holes; tightly wrapping a layer of steel wire mesh on the outer surfaces of the primer and the steel wool; then transversely winding steel wire cords on the working section, the ring belt and the outer part of the steel wire mesh of the whole wheel disc group; then dip-coating, spraying or brush-coating the winding part with mucilage; coating shaping glue on the outer surface of the steel cord; adhering strip-shaped or annular tread rubber on the outer surface of the shaping rubber; and vulcanizing each rubber layer respectively or together to finish the manufacture of the tire tread.

Further, step 2) takes another approach: riveting or stamping the working sections of the wheel sheets on the inner surface of the annular belt respectively, fixing the annular belt and the working sections of the wheel sheets, arranging shoulder-bent round columns at the shoulder-bent positions of the wheel sheets, clamping the straight sections of the wheel sheets by a mechanical arm clamping plate, and bending the straight sections of the wheel sheets 180 degrees around the shoulder-bent round columns so as to bend the shoulder-bent parts of the wheel sheets; then arranging each neck bending cylinder at the neck bending position of each wheel piece, clamping each wheel piece mounting section by a mechanical arm clamping plate, bending 180 degrees around each neck bending cylinder in the opposite direction, and bending the neck bending of each wheel piece; finally, the tire seat is placed in a circular space formed by enveloping the mounting sections of the wheel sheets, the mechanical arm clamping plates are loosened after the mounting sections of the wheel sheets are fixed on the tire seat by fasteners, the cylinders with the neck bends and the shoulder bends are removed, and the pre-tightening wheel sheet set is manufactured.

And 2) adopting another mode, firstly installing each wheel piece installation section on the tire seat by using a fastener, then sequentially and respectively bending the neck bend and the shoulder bend of each wheel piece, and finally riveting or impressing the working section of each wheel piece on the annular belt to finish the manufacture of the pre-tightening wheel piece group.

The wheel sheets of the wheel sheet set in the step 1) can also be made of glass fiber reinforced plastic plates or carbon fibers, and spring steel wires or spring steel belts are additionally arranged from the installation section to the working section of each wheel sheet to serve as frameworks of the wheel sheets.

In the manufacturing process of the utility model, after the wheel set is installed and in the working state, the installation section and the working section of each wheel piece are respectively enveloped with the inner cavity and the peripheral ring surface of the wheel set; the ring surface of the inner cavity of the wheel sheet group is respectively superposed with the outer ring surfaces of the tire seat and the rim, and the ring surface of the periphery of the wheel sheet group is superposed with the inner surface of the annular belt.

The wheel piece adopts a toe separating structure, specifically, one or more long grooves are arranged in the middle of a working section of the wheel piece, the tail end of the working section is divided into two or more toe-shaped strip-shaped structures, and the toe separating width is in corresponding relation with the width of longitudinal patterns on the tread rubber;

the wheel sheet adopts a web-shaped widening structure, and specifically, the outer edge of the outer side branch toe and the inner edge of the inner side branch toe which are positioned at the working section of the wheel sheet are widened respectively or together to manufacture the web-shaped widening structure.

The working sections of the wheel sheets of the whole wheel sheet set are riveted with the riveting holes on the outer ring belt through the riveting holes, or/and are bonded, welded and stamped, so that the whole wheel sheet set is formed.

The tire is characterized in that a steel wire framework is arranged in tread rubber of the tire to enhance the anti-tearing and anti-falling performance of the tread rubber and pattern blocks on the tread rubber.

After the tire tread of the wheel sheet group is manufactured, an inner cavity ring surface enveloped by each wheel sheet mounting section is opened by a tire opener and sleeved on the outer ring surface of the selected rim; when the bent plate tire adopts more than two groups of wheel sheets, the opening directions of the same group of wheel sheets (the opening directions of the wheel sheet shoulder bends or the wheel sheet neck bends) are consistent, and the opening directions of the adjacent groups of wheel sheets are opposite or the same;

mounting the wheel sheet set on the outer ring surface of the rim by fasteners through the mounting holes, the tensioning holes and the radial through holes on the rim of each wheel sheet mounting section in sequence; the working elasticity of each wheel sheet in the group is balanced by comprehensively adjusting the tightening degree of each fastener in the same group; when the bent plate tire adopts more than two groups of wheel sheets, each group of wheel sheets are respectively arranged on the outer annular surface of the rim by fasteners; the plane of each group of wheel sheets is perpendicular to the axis of the rim and is arranged side by side along the axis direction; certain gaps are kept among the wheel sheets of each group.

In order to enhance the elastic supporting force of the wheel sheets and the wheel sheet group, a compression spring or a rubber block can be additionally arranged on the inner side of the neck bend and the shoulder bend of each wheel sheet; the compression spring is generally welded to the wheel disc, or is connected by a clamp or an autologous hook; the rubber blocks are typically bonded to the wheel plate or attached to the wheel plate by a central through-going spindle.

When the pre-tightening type bent plate tire is actually used and installed, all support rods of the tire spreader are inserted into all installation grooves of the tire seat, the fasteners are dismounted, the inner cavity ring surfaces enveloped by all wheel piece installation sections are spread, the diameter of each inner cavity ring surface is larger than the diameter of the outer circle of the tire seat, and the tire is taken out from the tire seat; continuously expanding the support rods to enable the diameter of the circular ring surface of the inner cavity enveloped by the wheel sheet installation section to be larger than the diameter of the outer circle of the rim to be installed, sleeving the tire on the rim, enabling the installation hole of each wheel sheet to be aligned with the radial through hole on the rim, contracting the support rods to enable the installation section of each wheel sheet to be tightly attached to the outer ring surface of the rim, and then contracting the support rods to enable the tire spreader to exit from the rim; the mounting of the tire on the rim can be completed by mounting fasteners through the mounting holes and the tensioning holes on the wheel sheets and the radial through holes on the rim; when removing the tire, the tire can be removed from the rim by the tire spreader in the reverse order.

The utility model has the advantages that:

1) the utility model discloses a wheel piece group has adopted the pretension mechanism, and when each wheel piece was opened by the tire spreader to be installed on the rim by bending into S-shaped and wheel piece group, they just passed through the pretension. This gives the tire with the camber plate the same characteristic of a pneumatic tire that only a small amount of deformation is required when carrying a significant load. The pretension is reflected on the characteristic line of the spring, namely, the smaller strain generated when the spring is subjected to smaller stress is drawn into a negative value area in advance, so that the elastic rigidity of the tire is improved in a limited elastic space, the tire is ensured not to deform too much when heavy load or larger impact load is met, and sufficient supporting elastic force can be provided. This helps to reduce the amount and number of the wheel pieces (sets), thereby reducing the self weight of the tire. The tread rubber is mainly matched with the toe separation to enhance the ground gripping performance of the tire without being made thick, so that the whole tire can keep a certain roundness under different load conditions without being deformed greatly, on one hand, the fatigue damage to the whole wheel set and the tread rubber caused by heavy load and long-time running of a vehicle can be reduced, on the other hand, when the wheel runs at high speed, the vibration and the elastic hysteresis energy loss of the tire tread are also reduced, and the effects of noise reduction and energy conservation are achieved.

2) The wheel sheet adopted by the tire of the utility model is generally made of spring steel plates, the elastic modulus, the heat resistance and the ageing resistance of the wheel sheet are far higher than those of rubber, and the wheel sheet is of an S-shaped bending structure and can be regarded as a pair of C-shaped structures with opposite opening directions and respective open openings, therefore, the wheel sheets in the same group have large gaps, the mounting section and the working section of the wheel sheet are respectively fixed on the surface of the outer ring of the rim and the inner surface of the tire girdle, thus, the supporting elasticity and the driving force of the wheel sheet can be stably and flexibly transmitted between the wheel sheets, the power performance of the whole tire is optimized, and the heat dissipation cavity function formed by the steel wool and the heat dissipation holes on the girdle is added, the heat generated in the running of the tire is easily dissipated, and road foreign matters such as silt and the like are not easy to enter the tire body, therefore, the working reliability of the tire is high, the operation safety and the trafficability can be effectively guaranteed.

3) The tyre of the utility model is mainly composed of a wheel sheet group and tread rubber, the structure is simpler, the wheel sheet bearing the load of the wheel adopts a plate-shaped elastic material, such as spring steel plate, glass fiber reinforced plastic plate, etc., the wheel sheet is connected with the steel wire cord of the tread rubber, the base rubber, the shaping rubber and the tread rubber, whether rubber or polyurethane material, which belong to the existing common manufacturing materials, and mature conventional manufacturing processes, namely stamping, heat treatment and surface treatment of the spring steel plate, and the electroplating coatings thereof, the pouring molding of the glass fiber reinforced plastic plate, the winding of the steel wire cord, and the processing of tread rubber are the existing mature technologies, and the processing technology and the flow in the utility model are greatly simplified compared with the pneumatic tire, therefore, the manufacturing material and the processing cost are both low, and the low-cost production and the market popularization are convenient.

4) Considering that the wheel is in a roll state when turning and all parts of the tire contacting the ground are not evenly stressed when the vehicle runs on a rough and uneven road surface. In order to improve this situation, it is necessary to make the working section of the wheel blade contacting the ground into a double-toe or multi-toe shape, so that when the wheel is in a rolling state or running on a rough and uneven road, it can still maintain a large contact area with the ground, thereby enhancing the grip performance, and at the same time, preventing the premature wear of the tire edge; of course, the width of each toe and the width of the toe gap of the wheel disc are adapted to the usage environment of the tire, for example, the width of the toe and/or the width of the toe gap of off-road tires and snowfield tire discs are larger, and the width of the toe and/or the width of the toe gap of urban tire discs are smaller.

In addition, in order to increase the actual contact area between the bent plate tire and the road surface, the edge of the working section of the wheel sheet contacting the ground needs to be widened like a web, so that a simple mode is provided for widening the ground contact working surface of the tire, and the running of the tire is more stable.

Compared with the prior art, the beneficial effects of the utility model are that:

the tire has higher load bearing performance, shows that the tire has larger vertical supporting force, and is mainly realized by the wheel sheet right below the rim, the wheel sheets near the lower part in the front and the rear parts of the tire simultaneously play an auxiliary bearing function because the working sections are integrally connected through the girdle band, and particularly, each wheel sheet and the whole wheel sheet group are fully pre-tightened, so the load bearing performance of the tire can reach or exceed that of an inflatable tire;

the bending plate type pneumatic tire has higher operating stability, and is characterized in that the cornering stiffness of a combined body of a wheel sheet group, a steel cord, a tread rubber and the like of the bending plate type pneumatic tire is far higher than that of a pneumatic tire, and even if a rim with a reduced outer diameter is used, the cornering stiffness and the reflected operating stability of the rim are also higher than those of the pneumatic tire;

the high-safety tyre has higher running safety (sideslip resistance and wet-skid resistance), and is realized by materials such as spring steel plates of a bent-plate tyre wheel set, a toe separating structure, a heat dissipation structure and a tread rubber framework structure of a working section and the working section, rubber materials which are not limited by inflation sealing performance any more and more free pattern structure design, so that more excellent adhesion and traction performance is embodied, and the bent-plate tyre is realized by widening a rim and a tyre working section more conveniently to form web-shaped widening so as to enlarge the contact area between the tyre and the ground; the rubber tread block has better durability (abrasion resistance, fatigue resistance and damage resistance), which is realized by the fact that the spring steel plate which is the preferred material of the bent plate tire wheel disc group is far superior to the high-temperature fatigue resistance of a rubber body of the pneumatic tire, the steel wire mesh framework is additionally arranged in the tread rubber pattern block to enhance the tear collapse resistance of the tread rubber pattern block, and the rubber material is more freely selected to improve the ageing resistance, and the comprehensive performance of the rubber tread block can reach or even exceed that of the pneumatic tire;

the tire has better energy-saving economical efficiency and environmental protection performance, which are determined by the simplified structure and processing technology of the bent plate tire, the prolonged service life and better service performance of the tire, simultaneously, the tire omits the side wall and the tire bead of the pneumatic tire, greatly reduces the usage amount of rubber, and the total amount of generated waste rubber, thereby reducing the environmental pollution.

Drawings

The structure and features of the present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of the point i in fig. 1.

Fig. 3 is a schematic cross-sectional view of the left side view of fig. 1.

Fig. 4 is a schematic structural view of the rim of the present invention.

Fig. 5 is a schematic cross-sectional view of the wheel plate according to the present invention.

Fig. 6 is a top view of fig. 5 after deployment.

Fig. 7 is a schematic view of the wheel plate preloaded by the mounting box of the present invention.

Fig. 8 is a schematic view of the tire supporting device used in mounting and dismounting the tire of the present invention.

Fig. 9 is a schematic view of a tire seat for use in loading, unloading, transporting and transporting a tire according to the present invention.

In the accompanying drawings 1-9, 1, wheel piece, 2, wheel rim, 3, fastener, 4, ring belt, 5, steel wool, 6, base rubber, 7, steel cord, 8, shaping rubber, 9, tread rubber, 10, steel wire framework, 12, installation section, 13 neck bend, 14, straight section, 15 shoulder bend, 16, working section, 17 tensioning hole, 18, installation hole, 19 web-shaped widening, 20 toe separating, 21 hollowed hole, 22, fixing hole, 23, positioning pin, 24, safety pin, 25, installation box, 27 stay bar, 28, air cylinder or hydraulic cylinder, 29 tire spreader chassis, 30, tire seat radial through hole, 31, tire seat installation groove, 32, tire seat bottom plate, 33, wheel hub, 34, radial through hole, 35 installation groove, 36 wheel piece a, 37 wheel piece b, 38 wheel piece c, 39, positioning hole.

Detailed Description

Referring to fig. 1-8, an embodiment of the present invention discloses a pre-tightened type tire with bent plates, which includes a rim 2, wherein 4 mounting grooves 35 are axially formed on the outer circumferential surface of the rim 2, a plurality of S-shaped wheel pieces 1 made of elastic plate materials are fixed on the outer circumferential surface of the rim 2 through fasteners, each wheel piece 1 forms a wheel piece set by externally fixing an endless belt 4, the outside of the endless belt 4 is coated with a base rubber 6, and steel wool 5 is adhered to the position of a heat dissipation hole, and then a steel wire mesh layer is wrapped, and a shaping rubber 8 is coated after the steel wire mesh layer is wound with a steel wire cord 7, and a tread rubber 9 is adhered to the outside of the shaping rubber 8, so as to form a tire tread; the tyre is in a substantially pre-tensioned state in use.

The girdle 4 is made of elastic plates, and the girdle 4 is respectively provided with a riveting hole and a heat dissipation hole.

The wheel sheet is divided into a mounting section 12, a neck bend 13, a straight section 14, a shoulder bend 15 and a working section 16, the mounting section 12 is fixed with a radial through hole 34 on the outer ring surface of a rim in an overcut manner by being provided with a mounting hole 18 and a tensioning hole 17, the tensioning hole 17 is in an oblong shape, the neck bend 13 of the wheel sheet is in an arc with a smaller radius, and the shoulder bend 15 of the wheel sheet is in an arc with an equal or larger radius; under the pre-tightening state, the working section of each wheel sheet 1 is enveloped with a circular ring surface at the periphery of the wheel.

Furthermore, a groove is formed in the middle of the working section 16 of the wheel sheet 1 to form two or more sub-toes 20, the outer edges of the sub-toes 20 at two sides adopt a web-shaped widening 19 structure, and the tail end of each sub-toe 20 close to the working section 16 is respectively provided with a fixing hole 22 correspondingly riveted with the annular belt riveting hole and a hollow hole 21 opposite to the annular belt 4 heat dissipation hole for heat dissipation.

And compression springs or rubber blocks are additionally arranged on the inner sides of the neck bend 13 and the shoulder bend 15 of the wheel sheet 1.

When the tread rubber 9 is manufactured, a steel wire framework 10 is arranged inside the tread rubber 9, and the convex part of the steel wire framework 10 corresponds to the convex part of the tread rubber pattern block.

The pre-tightening type bent plate tire is manufactured by the following method:

1) inserting the tail end of the working section 16 of the wheel sheet 1 with the manufactured guide arc into the mounting box 25, positioning the positioning hole 39 on the positioning pin 23 of the mounting box, applying pressure to the working section 16 from the wheel sheet mounting section 12, fully pre-tightening the wheel sheet, compressing and bending the wheel sheet into an S shape, and inserting the safety pin 24; fixing the fixing holes 22 and the riveting holes on the ring belt by rivets at the working sections 16 of the wheel sheets, after the wheel sheets of the whole wheel sheet group are all connected to the ring belt, expanding the inner cavity circular ring surface enveloped by the mounting sections 16 of the wheel sheets by using a support rod 27 in the tire spreader, putting the inner cavity circular ring surface on the tire seat, loosening the tire spreader, penetrating the mounting

holes

18 and 17 of the wheel sheets and the radial through holes 30 on the tire seat by using fasteners, pulling out the safety pins 24 after fastening, removing the mounting boxes 25, and finishing the manufacturing of the pre-tightened wheel sheet group;

2) in the attached figure 2, primer 6 is coated on two radial sides of the outer surface of a tire ring belt 4 provided with a wheel sheet set, steel wool 5 is adhered to the edge part of a heat dissipation hole in the middle of the ring belt, and the steel wool 5 is filled on the surface of the whole heat dissipation hole; a layer of steel wire mesh is tightly wrapped outside the bottom glue 6 and the steel wool 5; then transversely winding steel wire cords 7 on the working sections 16 of the wheel sheets, the ring belts 4 and the outer parts of the steel wire meshes; dipping, spraying or brushing the part for winding the steel cord 7 with mucilage, and coating a layer of shaping glue 8 on the outer surface of the steel cord 7; after the shaping rubber 8 is trimmed and polished, strip-shaped or annular tread rubber 9 is coated or adhered on the outer surface of the shaping rubber 8, and the rubber layers are vulcanized respectively or together, so that the tire tread is manufactured.

The pre-tightened plate bending tire can be manufactured by a second method which comprises the following steps:

1) firstly, riveting working sections 16 of each wheel piece of a group of wheel pieces to riveting holes of the ring belt 4 respectively, fixing the ring belt 4, arranging a cylinder adaptive to the bending radian of the shoulder bend at a preset position of the shoulder bend 15 of each wheel piece, clamping straight sections 14 of each wheel piece by a mechanical arm clamping plate, and bending the straight sections 180 degrees anticlockwise around the cylinder, thereby folding the shoulder bend 15 of each wheel piece; then arranging a neck bending cylinder at the preset neck bending 13 position of each wheel piece, clamping each wheel piece mounting section 12 by a mechanical hand clamping plate, bending the wheel pieces around the neck bending cylinder by 180 degrees clockwise, and bending the neck bending 13 of each wheel piece; finally, placing the tire seat in a circular space enveloped by the mounting section of each wheel piece, loosening the mechanical arm clamping plate after mounting the fastener, removing the neck-bent cylinder and the shoulder-bent cylinder, and finishing the manufacture of the wheel piece group;

when the pre-tightened bent plate tire is made of glass fiber reinforced plastic plates, the process can be completed by a third method:

selecting strip-shaped glass fiber mesh cloth as a base material, using a spring steel wire or a spring steel band as a framework, increasing the strength and elasticity of a finished product, and slightly curing after the whole is coated with resin, namely winding the glass fiber band in the transverse direction of the prefabricated member; when the tire is not completely cured, a tensioning hole, a mounting hole, a neck bend, a shoulder bend and a guide arc of the working section of the wheel sheet are made, and toe separation of the working section is carried out; then, after the resin is completely cured, the wheel sheet is pre-tightened and bent into an S shape by adopting the mounting box method or the mechanical method; then, the extending part of the working section of each wheel sheet surrounds the whole set of wheel sheets, resin is coated, and then the glass ribbon is transversely wound again to form a peripheral annular belt 4 of the wheel sheet set; when the resin of the ring belt is not completely cured, all the heat dissipation holes on the ring belt are made; after the resin is completely cured, bottom glue is pasted on two circumferential sides of the outer surface of the ring belt 4, and steel wool is pasted in the middle; and then transversely winding steel cords or glass ribbons, and then coating shaping rubber and adhering tread rubber in the same process as the steel plate tire.

When the utility model is used for mounting the tire, each support rod 27 of the tire supporting device is inserted into the mounting groove 31 of the tire seat to support the ring surface enveloped by each wheel piece mounting section 12, so that the diameter of the ring surface is larger than the diameter of the outer ring surface of the tire seat, and the tire is taken out from the tire seat; continuously expanding the support rods to enable the diameter of a circular ring surface enveloped by each wheel sheet installation section to be larger than the diameter of an outer circular ring surface of the rim 2 to be installed, enabling the support rods 27 of the tire expander to be inserted into the installation grooves 35 of the rim to be installed, contracting the support rods 27, enabling the installation holes 18 of the wheel sheets to be aligned to the radial through holes 34 of the rim to be installed, enabling the installation sections 12 of the wheel sheets to be tightly attached to the outer circular ring surface of the rim to be installed, and installing fasteners; when removing the tire, the tire can be removed from the rim by the tire spreader in the reverse order.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not only limitations of the present invention, but also other modifications, amendments or equivalent replacements made by those skilled in the art according to the above description are all within the protection scope of the present invention.

Claims

1. The utility model provides a pretension formula bent plate tire which characterized in that: the wheel disc set is arranged on the outer surface of the rim, and an annular belt and tread rubber are sequentially arranged on the periphery of the wheel disc set; the wheel set consists of a plurality of S-shaped wheel sheets, each wheel sheet is divided into an installation section, a neck bend, a straight section, a shoulder bend and a working section, the installation section is provided with an installation hole and a tensioning hole, the working section is provided with a fixing hole and a hollow hole, each wheel sheet in the wheel set is enveloped with an outer ring body along the outer surface of a rim, and each wheel sheet installation section is lapped on an adjacent wheel sheet installation section in the inner cavity of the outer ring body, so that the tensioning hole of each wheel sheet, the installation hole of the adjacent wheel sheet and a radial through hole are fixed together through fasteners; the ring belt is provided with a riveting hole connected with the fixing hole in a matching way and a heat dissipation hole corresponding to the hollow hole, and steel wool is adhered to the heat dissipation hole; coating a base rubber on the exterior of the girdle band and wrapping the girdle band with a steel wire mesh layer, coating a shaping rubber after winding a steel wire cord on the exterior of the steel wire mesh layer, and adhering a tread rubber on the exterior of the shaping rubber to form a tire in a fully pre-tightening state in use; each wheel sheet and each ring belt are made of elastic plates.

2. The pre-tensioned flexure plate tire of claim 1 wherein: the outer ring surface of the wheel rim is provided with 3 or more mounting grooves along the axial direction.

3. The pre-tensioned flexure plate tire of claim 1 wherein: the middle of the working section of the wheel sheet is grooved to form two or more sub-toes, the outer sides of the sub-toes on the two sides adopt a web-shaped widening structure, fixing holes and hollow holes are formed in the positions, close to the tail ends of the working section, of the sub-toes, and positioning holes are further formed in the working section.

4. The pre-tensioned flexure plate tire of claim 1 wherein: the neck bend of the wheel sheet is a circular arc with a smaller radius, and the shoulder bend of the wheel sheet is a circular arc with a larger radius; under the pre-tightening state, the working sections of the wheel sheets are wrapped by a circular ring surface on the periphery of the wheel.

5. The pre-tensioned flexure plate tire of claim 1 wherein: and compression springs or rubber blocks are additionally arranged on the inner sides of the neck bends and the shoulder bends of the wheel sheets.

6. The pre-tensioned flexure plate tire of claim 1 wherein: when the tread rubber is manufactured, a steel wire framework is arranged in the tread rubber, and the convex part of the steel wire framework corresponds to the convex part of the tread rubber pattern block.