阅读说明：本技术 一种万能免充气轮胎装胎机 (Universal inflation-free tire mounting machine ) 是由 林剑豪 于 2019-09-04 设计创作，主要内容包括：本发明公开了一种万能免充气轮胎装胎机,属于装胎机领域,万能免充气轮胎装胎机包括升降底座、用于驱动升降底座升降的第一升降驱动机构、可滑动设置于升降底座上的用于扩张轮胎的若干个扩张单元、设置于升降底座中部的用于驱动若干个扩张单元扩张轮胎的升降凸台、用于驱动升降凸台升降的第二升降驱动机构,若干个扩张单元沿升降凸台的外围周向设置,若干个扩张单元可活动的一端分别与升降凸台的倾斜面接触配合。本发明公开的万能免充气轮胎装胎机,可实现简化装胎机结构,并实现对不同规格的免充气轮胎进行装胎。(The invention discloses a universal inflation-free tire mounting machine, which belongs to the field of tire mounting machines and comprises a lifting base, a first lifting driving mechanism for driving the lifting base to lift, a plurality of expansion units which are slidably arranged on the lifting base and are used for expanding tires, a lifting boss which is arranged in the middle of the lifting base and is used for driving the expansion units to expand the tires, and a second lifting driving mechanism for driving the lifting boss to lift, wherein the expansion units are circumferentially arranged along the periphery of the lifting boss, and the movable ends of the expansion units are respectively in contact fit with the inclined surface of the lifting boss. The universal inflation-free tire mounting machine disclosed by the invention can simplify the structure of the tire mounting machine and mount tires of inflation-free tires of different specifications.)

1. The utility model provides a omnipotent pneumatic tire dress child machine of exempting from which characterized in that:

the tire expanding device comprises a lifting base (1), a first lifting driving mechanism (2) for driving the lifting base (1) to lift, a plurality of expanding units (3) which are arranged on the lifting base (1) in a sliding manner and are used for expanding tires, a lifting boss (4) which is arranged in the middle of the lifting base (1) and is used for driving the expanding units (3) to expand towards the periphery, and a second lifting driving mechanism (5) for driving the lifting boss (4) to lift;

the plurality of expansion units (3) are arranged along the peripheral circumference of the lifting lug boss (4);

and one movable end of each expansion unit (3) is in contact fit with the inclined surface of the lifting boss (4) respectively.

2. The universal non-pneumatic tire mounting machine as claimed in claim 1, wherein:

the expansion unit (3) comprises a fixed seat (31), an expansion part (32) arranged on the fixed seat (31) in a sliding manner, and a rotating bearing (33) arranged on the expansion part (32) and close to one end of the lifting boss (4);

the rotating bearing (33) is in rolling contact with the inclined surface of the lifting boss (4).

3. The universal non-pneumatic tire mounting machine as claimed in claim 2, wherein:

the expansion unit (3) further comprises a reduction portion (34);

the reset part (34) comprises a sliding shaft (341) arranged at one end of the expansion part (32) far away from the lifting boss (4), a compression spring (342) sleeved on the sliding shaft (341), and a support (343) arranged at one end of the fixed seat (31) far away from the lifting boss (4);

the sliding shaft (341) is in sliding fit with the support (343).

4. The universal non-pneumatic tire mounting machine as claimed in claim 2, wherein:

the expansion part (32) comprises a sliding block (321) arranged on the fixed seat (31) in a sliding manner, a bottom block (322) arranged on the sliding block (321), and an expansion plate (323) vertically arranged on the bottom block (322);

the bottom block (322) is adjustably arranged on the sliding block (321);

the rotary bearing (33) is provided on the slide block (321).

5. The universal non-pneumatic tire mounting machine as claimed in claim 4, wherein:

a graduated scale is arranged on the fixed seat (31);

the bottom block (322) is provided with a marking line.

6. The universal non-pneumatic tire mounting machine as claimed in claim 1, wherein:

the first lifting driving mechanism (2) comprises a supporting bottom plate (21) positioned below the lifting base (1), a plurality of guide columns (22) arranged at the bottom of the lifting base (1), and a first driving oil cylinder (23) arranged on the supporting bottom plate (21);

the lower parts of the guide columns (22) respectively penetrate through the supporting bottom plate (21) and are in sliding fit with the supporting bottom plate (21);

and a piston rod of the first driving oil cylinder (23) is connected with the bottom of the lifting base (1).

7. The universal non-pneumatic tire mounting machine as claimed in claim 1, wherein:

the second lifting driving mechanism (5) comprises an oil cylinder supporting seat (51) arranged below the lifting base (1) and a second driving oil cylinder (52) arranged on the oil cylinder supporting seat (51);

and a piston rod of the second driving oil cylinder (52) is connected with the lifting boss (4).

8. The universal non-pneumatic tire mounting machine as claimed in claim 6, wherein:

the universal inflation-free tire mounting machine further comprises a support (6) and a supporting top plate (7) arranged at the top of the support (6);

the supporting top plate (7) is positioned above the lifting base (1), and a sliding groove matched with the expansion unit (3) is formed in the supporting top plate (7);

the supporting bottom plate (21) is arranged in the middle of the support (6).

9. The universal non-pneumatic tire mounting machine as claimed in claim 6, wherein:

a second photoelectric bracket (8) is arranged on the supporting bottom plate (21);

the upper part and the lower part of the second photoelectric bracket (8) are respectively provided with a second photoelectric switch (80);

the second photoelectric switch (80) is used for sensing the lifting base (1).

10. The universal non-pneumatic tire mounting machine as claimed in claim 8, wherein:

the universal inflation-free tire mounting machine also comprises a tire pressing mechanism (9);

the tire pressing mechanism (9) comprises a support frame (91) arranged on the support top plate (7), a support plate (92) arranged on the support frame (91), a movable shaft (93) movably arranged on the support plate (92), a handle rod (94) hinged to the top end of the movable shaft (93), and a tire pressing frame (95) arranged at the lower end of the movable shaft (93);

one end of the handle rod (94) is hinged with the support plate (92) through a connecting piece (96).

Technical Field

The invention relates to the field of tire mounting machines, in particular to a universal inflation-free tire mounting machine.

Background

The non-inflatable tire is widely applied to wheel chair tires, bicycle tires, electric scooter tires, light motorcycle tires, baby carriages, shopping carts, special vehicles and the like, and avoids the hidden troubles of easy damage, easy explosion, tire replacement, core replacement, tire repair and air leakage of the traditional inflatable tire. The characteristics of abrasion resistance, pressure resistance, high strength and the like of the non-pneumatic tire enable the non-pneumatic tire to be difficult to install compared with a pneumatic tire, especially, a manual process for installing the non-pneumatic tire on a hub is a time-consuming and labor-consuming process, the labor intensity is high, the consistency of assembly quality is not easy to guarantee, and the phenomenon of tire release during use can be caused. Therefore, the tire mounting machine has been developed to mount the non-pneumatic tire and the hub.

However, most of the existing tire mounting machines drive the jaws to expand the non-pneumatic tire through structures such as a driving disc, a guide disc, an arc-shaped groove and a cylinder and then put into a hub to realize tire mounting, the structure of the tire mounting machine is relatively complex, the requirement on the machining precision of parts such as the guide disc and the arc-shaped groove is high, otherwise the tire mounting machine is easy to block and is seriously damaged after being used for a long time. Meanwhile, due to the structural limitation, the installation of the inflation-free tires with different specifications is difficult to realize, and the applicability is narrow.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a universal inflation-free tire mounting machine to simplify the structure of the tire mounting machine and mount tires of inflation-free tires with different specifications.

The technical scheme adopted by the invention is as follows:

the invention provides a universal inflation-free tire mounting machine which comprises a lifting base, a first lifting driving mechanism, a plurality of expansion units, a lifting boss and a second lifting driving mechanism, wherein the first lifting driving mechanism is used for driving the lifting base to lift, the expansion units are slidably arranged on the lifting base and are used for expanding tires, the lifting boss is arranged in the middle of the lifting base and is used for driving the expansion units to expand the tires, the second lifting driving mechanism is used for driving the lifting boss to lift, the expansion units are circumferentially arranged along the periphery of the lifting boss, and the movable ends of the expansion units are respectively in contact fit with the inclined surface of the lifting boss.

As a further improvement of the scheme, the expansion unit comprises a fixed seat, an expansion part arranged on the fixed seat in a sliding manner, and a rotating bearing arranged on the expansion part and close to one end of the lifting boss, wherein the rotating bearing is in rolling contact with an inclined plane of the lifting boss.

As a further improvement of the present scheme, the expansion unit further includes a reset portion, the reset portion includes a sliding shaft, a compression spring, a support, and a sliding shaft sliding fit, wherein the sliding shaft is arranged on the expansion portion and is far away from one end of the lifting boss, the compression spring is sleeved on the sliding shaft, the support is arranged on the fixing seat and is far away from one end of the lifting boss, and the sliding shaft is in sliding fit with the support.

As a further improvement of this scheme, the expansion portion including slide set up in sliding block on the fixing base, set up in bottom block on the sliding block, vertical set up in expansion board on the bottom block, the bottom block adjustably set up in on the sliding block.

As a further improvement of the scheme, a graduated scale is arranged on the fixed seat, and a marking line which is aligned with the graduation of the graduated scale is arranged on the bottom block.

As a further improvement of this solution, the first lifting driving mechanism includes a supporting base plate located below the lifting base, a plurality of guide pillars disposed at the bottom of the lifting base, and a first driving cylinder disposed on the supporting base plate, lower portions of the plurality of guide pillars are respectively in sliding fit with the supporting base plate, and a piston rod of the first driving cylinder is connected to the bottom of the lifting base.

As a further improvement of the present scheme, the second lifting driving mechanism includes an oil cylinder support seat disposed below the lifting base, and a second driving oil cylinder disposed on the oil cylinder support seat, and a piston rod of the second driving oil cylinder is connected to the lifting boss.

As a further improvement of the scheme, the universal inflation-free tire mounting machine further comprises a support and a supporting top plate arranged at the top of the support, the supporting top plate is located above the lifting base, a sliding groove matched with the expansion unit is formed in the supporting top plate, and the supporting bottom plate is arranged in the middle of the support.

As a further improvement of the scheme, a second photoelectric support is arranged on the supporting bottom plate, a second photoelectric switch is respectively arranged on the upper portion and the lower portion of the second photoelectric support, and the second photoelectric switch is used for sensing the lifting base.

As a further improvement of the scheme, the universal inflation-free tire mounting machine further comprises a tire pressing mechanism, the tire pressing mechanism comprises a support frame arranged on the support top plate, a support plate arranged on the support frame, a movable shaft movably arranged on the support plate, a handle rod hinged to the top end of the movable shaft, and a tire pressing frame arranged at the lower end of the movable shaft, and one end of the handle rod is hinged to the support plate through a connecting piece.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a universal inflation-free tire mounting machine, which is characterized in that a lifting boss is arranged in the middle of a lifting base, a plurality of expansion units are arranged on the lifting base in a circumferential sliding manner at the periphery of the lifting lug boss, and the movable ends of the expansion units are in contact fit with the inclined surface of the lifting lug boss, the second lifting driving mechanism drives the lifting lug bosses to move upwards, the inclined planes of the lifting lug bosses gradually rise, and the plurality of expansion units are gradually expanded to the periphery, the peripheral inflation-free tire can be expanded, the structure is simple and reliable, complex structures such as a driving disc, a guide disc, an arc-shaped groove and the like are not required to be processed and arranged, then, a wheel hub is arranged in the expanded inflation-free tire, the lifting base is driven to descend through the first lifting driving mechanism, the expansion units are separated from the inflation-free tire, the inflation-free tire is tightened to be assembled with the wheel hub in place, and the assembly is stable and reliable. After the lifting lug boss descends, the plurality of expansion units are folded towards the center, the non-pneumatic tires with different specifications can be placed on the periphery of the expansion units, the expansion units are outwards expanded through the matching of the lifting lug boss, the non-pneumatic tires with different specifications are expanded, and therefore the tires of the non-pneumatic tires with different specifications can be quickly and conveniently mounted.

Drawings

FIG. 1 is a schematic structural diagram of a universal non-pneumatic tire mounting machine provided in the embodiment of the invention;

FIG. 2 is a schematic front view of a universal non-pneumatic tire mounting machine according to an embodiment of the present invention;

FIG. 3 is a right structural schematic view of a universal non-pneumatic tire mounting machine according to an embodiment of the present invention;

FIG. 4 is a schematic top view of a universal non-pneumatic tire mounting machine according to an embodiment of the present invention;

fig. 5 is a schematic diagram of the cooperation among the lifting base, the expansion unit, the lifting boss and the second lifting driving mechanism provided in the embodiment of the present invention;

fig. 6 is a second schematic view of the cooperation among the lifting base, the expansion unit, the lifting boss and the second lifting driving mechanism provided in the embodiment of the present invention;

fig. 7 is a third schematic view of the cooperation among the lifting base, the expansion unit, the lifting boss and the second lifting driving mechanism provided in the embodiment of the present invention;

FIG. 8 is a schematic structural view of a lift boss provided in an embodiment of the present invention;

FIG. 9 is a schematic diagram of a first opto-electronic support and a first opto-electronic switch provided in an embodiment of the present invention;

fig. 10 is a schematic structural view of a top support plate provided in an embodiment of the present invention.

In the figure:

1. a lifting base; 2. a first elevation drive mechanism; 3. an expansion unit; 4. lifting the boss; 5. a second elevation drive mechanism; 31. a fixed seat; 32. an expansion section; 33. a rotating bearing; 34. a reset section; 341. a sliding shaft; 342. a compression spring; 343. a support; 321. a slider; 322. a bottom block; 323. an expansion plate; 21. a support base plate; 22. a guide post; 23. a first drive cylinder; 51. an oil cylinder supporting seat; 52. a second driving oil cylinder; 53. a guide base plate; 54. a boss guide post; 6. a support; 7. supporting a top plate; 70. a chute; 8. a second photovoltaic mount; 80. a second photoelectric switch; 9. a tire pressing mechanism; 91. a support frame; 92. a support plate; 93. a movable shaft; 94. a handle bar; 95. pressing a tire frame; 96. a connecting member; 951. a connecting frame; 952. pressing placenta; 953. pressing a tire block; 954. a central pressing block; 61. an electric cabinet; 62. a hydraulic pump of the oil cylinder; 63. a control box; 3210. positioning a pin; 11. a first photovoltaic mount; 12. a first photoelectric switch; 71. a positioning pin hole; 40. and a clearance hole.

Detailed Description

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings and technical solutions required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 10, the present embodiment provides a universal non-pneumatic tire mounting machine, including a lifting base 1, a first lifting driving mechanism 2 for driving the lifting base 1 to go up and down, a plurality of expansion units 3 for expanding tires can be slidably disposed on the lifting base 1, a lifting boss 4 for driving the plurality of expansion units 3 to expand all around is disposed in the middle of the lifting base 1, a second lifting driving mechanism 5 for driving the lifting boss 4 to go up and down, the plurality of expansion units 3 are disposed along the peripheral circumference of the lifting boss 4, and the movable end of the plurality of expansion units 3 is respectively in contact fit with the inclined plane of the lifting boss 4. Specifically, lifting pedestal 1 is annular disc structure, and every expansion unit 3 all sets up along lifting pedestal 1's radial, makes expansion unit 3 along lifting pedestal 1's radial slip, and lift boss 4 can set up in middle part lifting pedestal 1 middle part with oscilaltion, and lift boss 4 is the terrace with edge shape, and its side comprises a plurality of inclined planes, the quantity on inclined plane and the quantity looks adaptation of expansion unit 3. The lifting boss 4 is driven to move upwards by the second lifting driving mechanism 5, the inclined plane of the lifting boss 4 gradually rises to abut against the expansion units 3, so that the expansion units 3 are pushed outwards, a plurality of expansion units are gradually expanded from the center of the lifting base 1 to the periphery, the non-pneumatic tire at the periphery can be gradually expanded, the structure is simple and reliable, the existing complex structures such as a driving disc, a guide disc, an arc groove and the like are not required to be processed and arranged, the lifting boss 4 is matched with the expansion units 3, so that the non-pneumatic tire is indirectly and gradually expanded, the stability is high, the non-pneumatic tire is not easy to damage, then a wheel hub is arranged at the inner side of each expansion unit 3 in the expanded non-pneumatic tire, the lifting base 1 is driven to descend by the first lifting driving mechanism 2, the expansion units 3 are separated from the non-pneumatic tire, the non-pneumatic tire is tightened and assembled with the wheel hub, the assembly is stable and reliable. After the lifting lug boss 4 descends, the plurality of expansion units 3 are folded towards the center, the size is small, the non-pneumatic tires with different specifications can be placed on the periphery of the expansion units, the expansion units 3 are outwards expanded through the matching of the lifting lug boss 4 to expand the non-pneumatic tires with different specifications, the tires can be mounted on the non-pneumatic tires with different specifications, and the applicability is wide.

For reinforcing stability and the smoothness nature of contact complex between expansion unit 3 and the inclined plane of lift boss 4, furtherly, expansion unit 3 is including fixed fixing base 31 that sets up on lifting pedestal 1, the expansion portion 32 that sets up on fixing base 31 slides, set up the rolling bearing 33 that is close to lift boss 4 one end on expansion portion 32, expansion portion 32 is used for expanding exempting from pneumatic tire, rolling bearing 33 and the inclined plane rolling contact of lift boss 4, make the contact fit frictional resistance between expansion unit 3 and the lift boss 4 little, can make lift boss 4 expand a plurality of expansion unit 3 to expanding all around more smoothly.

In order to facilitate the lifting boss 4 to descend, each expansion unit 3 is folded towards the center and reset, further, the expansion unit 3 further includes a reset portion 34, the reset portion 34 includes a sliding shaft 341 fixedly disposed on the expansion portion 32 and far away from one end of the lifting boss 4, a compression spring 342 sleeved on the sliding shaft 341, and a support 343 disposed on the fixing seat 31 and far away from one end of the lifting boss 4, the sliding shaft 341 is in sliding fit with the support 343, the compression spring 342 is disposed between the expansion portion 32 and the support 343, and the sliding shaft 341 provides support and guide for the compression spring 342. When the lifting boss 4 ascends, the lifting boss 4 is in rolling contact with the rotating bearing 33 to push the expansion part 32 to expand outwards, the compression spring 342 is compressed, after the lifting boss 4 descends, the compression spring 342 is elastically restored, the elastic force pushes the expansion part 32 to the original position, and therefore resetting is achieved, each expansion part 32 does not need to be pulled manually to reset, and the lifting boss is convenient and fast to use.

In order to improve the applicability of the expansion part 32 for expanding non-pneumatic tires with different specifications, further, the expansion part 32 comprises a sliding block 321 slidably disposed on the fixed seat 31, a bottom block 322 disposed on the sliding block 321, and an expansion plate 323 vertically and fixedly disposed on the bottom block 322, the expansion plate 323 is a circular arc-shaped plate and is adapted to the inner wall of the non-pneumatic tire, the sliding block 321 is in an inverted T shape, an inverted T-shaped sliding slot is disposed in the middle of the fixed seat 31, the sliding block 321 is in sliding fit with the inverted T-shaped sliding slot on the fixed seat 31, the rotating bearing 33 is disposed on one end of the sliding block 321 near the lifting boss 4, the sliding shaft 341 is disposed on one end of the sliding block 321 far from the lifting boss 4, the bottom block 322 is adjustably disposed on the sliding block 321 by screws, the lifting boss 4 drives the sliding block 321 to slide by the rotating bearing 33 for a limited, and the distance that the bottom block 322 is close to the centre of the lifting base 1 is adjusted, thus adjust the size of the circle enclosed between the expansion plates 323 of each expansion unit 3 at the beginning, and the size of the circle enclosed between the expansion plates 323 after being driven and expanded by the lifting boss 4, thus realize expanding the inflation-free tire of small specification and bigger specification, has improved the suitability of installing the tire to the inflation-free tire of different specifications.

In order to facilitate the installation and positioning of the bottom block 322 on the sliding block 321, further, two positioning pins 3210 are fixed on the top end surface of the sliding block 321, an elongated groove is formed in the middle of the bottom block 322, the positioning pins 3210 are all located in the elongated groove, when the position of the bottom block 322 on the sliding block 321 is adjusted, the screw connected between the bottom block 322 and the sliding block 321 is unscrewed, the position of the bottom block 322 is moved, and the bottom block 322 is prevented from deflecting to cause the deflection of the expansion plate 323 through the limitation of the positioning pins 3210 and the elongated groove, so that the adjustment and installation of the bottom block 322 are faster and more accurate.

For the improvement carry out the precision that expands to different model specification tires, furthermore, the upper surface of fixing base 31 is provided with the scale, be provided with on the bottom block 322 and be used for the mark line with the scale alignment of scale, different scales correspond to the inflation-free tire of different specification models on the scale, only need to remove bottom block 322 and make the mark line align to corresponding scale and can assemble the inflation-free tire of the model that this scale corresponds, it is quick accurate to adjust the location, it is more accurate when expanding different model specification tires.

In order to stably drive the lifting base 1 to lift, further, the first lifting driving mechanism 2 includes a supporting base plate 21 located below the lifting base 1, a plurality of guide pillars 22 disposed at the bottom of the lifting base 1, and a first driving cylinder 23 fixedly disposed at the bottom of the supporting base plate 21, upper ends of the plurality of guide pillars 22 are respectively fixedly connected to a lower surface of the lifting base 1, lower portions of the plurality of guide pillars 22 respectively penetrate through the supporting base plate 21 and are in sliding fit with the supporting base plate 21, and a piston rod of the first driving cylinder 23 upwards penetrates through the supporting base plate 21 and is fixedly connected to the bottom of the lifting base 1. Through the work of first drive cylinder 23, its piston rod drives lifting pedestal 1 and rises or descends, through the setting of a plurality of guide pillar 22, can improve lifting pedestal 1 stability at the lift in-process. Specifically, the two first driving oil cylinders 23 are respectively arranged on two sides below the lifting base 1, so that the driving stability of the lifting base 1 is further improved.

In order to facilitate the lifting of the lifting boss 4, further, the second lifting driving mechanism 5 comprises an oil cylinder supporting seat 51 arranged below the lifting base 1, and a second driving oil cylinder 52 fixedly arranged at the bottom of the oil cylinder supporting seat 51, the upper surface of the oil cylinder supporting seat 51 is fixedly connected to the lower surface of the lifting base 1 through a connecting column, a piston rod of the second driving oil cylinder 52 upwards penetrates through the oil cylinder supporting seat 51 and is fixedly connected with the lifting boss 4, a circular through hole is formed in the middle of the supporting base plate 21, and the second driving oil cylinder 52 passes through the circular through hole. The second driving cylinder 52 works, and the piston rod of the second driving cylinder drives the lifting boss 4 to ascend or descend.

In order to improve the stability of the lifting boss 4 during lifting, further, the second lifting driving mechanism 5 further comprises a guide base plate 53 fixedly arranged at the bottom of the lifting boss 4 and at least two boss guide posts 54 in sliding fit with the guide base plate 53, the top ends of the boss guide posts 53 are fixedly arranged on the bottom end face of the lifting base 1, the boss guide posts 53 vertically penetrate through the guide base plate 53 and are in sliding fit with the guide base plate 53, the lifting boss 4 guides through the sliding fit of the boss guide posts 54 and the guide base plate 53 during lifting, and the lifting boss 4 is more stable during lifting. The piston rod of the second driving cylinder 52 is fixedly connected with the bottom of the guide bottom plate 53.

In order to facilitate the control of the second driving oil cylinder 52 to drive the lifting boss 4 to ascend and descend to a corresponding position, further, the bottom end of the lifting base 1 is fixedly provided with a first photoelectric support 11, the upper part and the lower part of the first photoelectric support 11 are respectively provided with a first photoelectric switch 12, the first photoelectric switch 12 is used for sensing the guide bottom plate 53, when the second driving oil cylinder 52 drives the guide bottom plate 53 to ascend to one side of the first photoelectric switch 12 on the upper part of the first photoelectric support 11, the first photoelectric switch 12 on the upper part of the first photoelectric support 11 is triggered, the second driving oil cylinder 52 is stopped, the lifting boss 4 just ascends to expand each expansion unit 3, so that the inflation-free tire is expanded to be placed into a wheel hub, and the tire is prevented from being damaged due to overlarge expansion; when the second driving oil cylinder 52 drives the guide bottom plate 53 to descend to one side of the first photoelectric switch 12 at the lower part of the first photoelectric bracket 11, the first photoelectric switch 12 at the lower part of the first photoelectric bracket 11 is triggered, the second driving oil cylinder 52 stops, and each expansion unit 3 is in a folded state. The installation position of the first photoelectric switch 12 on the first photoelectric bracket 11 is adjustable, so that the lifting boss 4 can be lifted to a corresponding position to expand each expansion unit 3 to a non-pneumatic tire with a corresponding specification.

In order to facilitate the placement of the inflation-free tire during tire installation, further, the universal inflation-free tire installing machine further comprises a support 6 and a support top plate 7 fixedly arranged at the top of the support 6, a support bottom plate 21 is fixedly arranged at the middle part of the support 6, the support top plate 7 is arranged above the lifting base 1, the support top plate 7 is provided with a plurality of sliding chutes 70 matched with the plurality of expansion units 3, the middle parts of the plurality of sliding chutes 70 are communicated to form a through hole, after the lifting base 1 is driven by a first driving oil cylinder 23 to ascend, the expansion plates 323 of the expansion units 3 extend upwards out of the upper surface of the lifting base 1, the expansion plates 323 of the expansion units 3 are respectively positioned in the sliding chutes, the inflation-free tire is placed on the support top plate 7 and sleeved on the periphery of the expansion plates 323, and then the second driving oil cylinder 52 works to drive the lifting boss 4 to ascend to expand the expansion plates 323 of the expansion units 3 outwards, therefore, the inflation-free tire is expanded and spread, the wheel hub is placed inside each expanded part 323 after expansion, the lifting base 1 is driven to descend through the first driving oil cylinder 23, each expansion plate 323 of each expansion unit 3 descends to the lower part of the supporting top plate 7, and the inflation-free tire is tightened and assembled with the wheel hub.

In order to facilitate the assembly of hubs with different specifications and models, further, positioning pin holes 71 are formed in the upper surface of the supporting top plate 7 between two adjacent sliding grooves 70, the positioning pin holes 71 are threaded holes, and screws with different lengths and specifications are screwed into the positioning pin holes 71, so that the hubs with different specifications can be lifted to be assembled with the non-pneumatic tire in place.

Furthermore, the top of the lifting boss 4 is provided with a clearance hole 40, after the plurality of expansion units 3 are expanded by the lifting boss 4, when the hub with the motor shaft in the middle is placed on the inner side of the plurality of expansion units 3, the motor shaft in the middle of the hub can be accommodated in the clearance hole 40, the hub with different models is high in compatibility, and the normal operation of tire mounting is not influenced.

In order to control the first driving oil cylinder 23 to drive the lifting base 1 to ascend and descend to a corresponding position conveniently, further, a second photoelectric support 6 is arranged on the supporting bottom plate 21, a second photoelectric switch 8 is respectively arranged on the upper portion and the lower portion of the second photoelectric support 6, the second photoelectric switch 8 is used for sensing the lifting base 1, when the first driving oil cylinder 23 drives the lifting base 1 to ascend to the upper portion of the second photoelectric support 6, the lifting base 1 triggers the second photoelectric switch 8 on the upper portion of the second photoelectric support 6, and the first driving oil cylinder 23 stops driving; when the first driving oil cylinder 23 drives the lifting base 1 to descend to the lower position of the second photoelectric support 6, the lifting base 1 triggers the second photoelectric switch 8 at the lower part of the second photoelectric support 6, the first driving oil cylinder 23 stops driving, and the lifting base 1 can be prevented from ascending or descending excessively. The first photoelectric switch 12 and the second photoelectric switch 8 are mature prior art, and can be purchased from the market directly.

In order to improve the stability and safety of the inflation-free tire in the tire mounting process, further, the universal inflation-free tire mounting machine further comprises a tire pressing mechanism 9, the tire pressing mechanism 9 comprises a support frame 91 fixedly arranged on the support top plate 7, a support plate 92 fixedly arranged on the support frame 91, a movable shaft 93 movably arranged on the support plate 92, a handle rod 94 hinged to the top end of the movable shaft 93, a tire pressing frame 95 arranged at the lower end of the movable shaft 93, the upper end of the movable shaft 93 penetrates through the support plate 92 and extends to the position above the support plate 92, the movable shaft 93 is in sliding fit with the support plate 92, and one end of the handle rod 94 is hinged to the support plate 92 through a connecting piece 96. After the inflation-free tire is expanded and spread by the expansion unit 3, and the wheel hubs are placed between the expansion plates 323, the movable shaft 93 can move downwards by manually pressing down the free end of the handle rod 94, the movable shaft 93 drives the tire pressing frame 95 to press downwards, the tire pressing frame 95 presses the wheel hubs, then the first driving oil cylinder 23 drives the lifting base 1 to descend, the expansion plates 323 clamp the wheel hubs due to rapid contraction when being separated from the inflation-free tire, the wheel hubs are prone to jumping greatly, the wheel hubs and the inflation-free tire are prone to not being matched in place and even pop out, potential safety hazards also exist, the wheel hubs are pressed by the tire pressing frame 95 and the contraction jumping of the inflation-free tire is resisted, the inflation-free tire and the wheel hubs can be prevented from jumping and being matched in place, and the stability and safety in the tire assembling process are.

Specifically, the tire pressing frame 95 includes a connecting frame 951 fixedly connected to the lower end of the movable shaft 93, a tire pressing plate 952 arranged at the bottom of the connecting frame 951, a center pressing block 954 arranged at the center of the bottom of the tire pressing plate 952, a tire pressing block 953 arranged at the outer edge of the bottom of the tire pressing plate 952, the center pressing block 954 used for pressing a wheel hub, the tire pressing block 953 used for resisting the contraction elastic jumping of the inflation-free tire, the tire pressing block 953 provided with three and uniformly distributed along the circumference of the tire pressing plate 952, the top of the tire pressing block 953 adjustably arranged on the tire pressing plate 952 through a screw and a nut, the height of the tire pressing block 953 is convenient to adjust, an adjusting groove is arranged on the tire pressing plate 952, the screw is located in the adjusting groove immediately, the distance between the screw and the axis of the tire pressing plate 952 is convenient. The central pressing block 954 and the tire pressing block 953 may be nylon.

In order to control the first driving oil cylinder 23, the second driving oil cylinder 52, the first photoelectric switch 12 and the second photoelectric switch 80 conveniently, an electric cabinet 61 is arranged on the lower portion of the support 6, an oil cylinder hydraulic pump 62 for providing power for the first driving oil cylinder 23 and the second driving oil cylinder 52 is arranged on one side of the lower portion of the support 6, and the first photoelectric switch 12, the second photoelectric switch 80 and the oil cylinder hydraulic pump 62 are electrically connected with the electric cabinet 61 respectively. The supporting top plate 7 is provided with a control box 63 for operating the first driving oil cylinder 23 and the second driving oil cylinder 52, and the control box 63 is electrically connected with the electric cabinet.

During operation, under the control of a corresponding button on the control box 63, the second driving oil cylinder 52 drives the lifting boss 4 to descend, so that the expansion plates 323 of the expansion units 3 are folded to the minimum state, meanwhile, the first driving oil cylinder 23 drives the lifting base 1 to ascend, the lifting base 1 triggers the second photoelectric switch 80 on the upper portion of the second photoelectric support 8 to stop ascending to be ready to be in place, the inflation-free tires are sleeved on the periphery of the expansion plates 323 of the folded expansion units 3 and are arranged on the supporting top plate 7, then, the second driving oil cylinder 52 drives the lifting boss 4 to ascend, so that the expansion plates 323 of the expansion units 3 expand and unfold the inflation-free tires, the guide bottom plate 53 triggers the first photoelectric switch 12 on the upper portion of the first photoelectric support 11 to stop ascending, after the inflation-free tires are in place, hubs are arranged on the inner sides of the expansion plates 323 of the expansion units 3, and the hand-hold rod 94 is pressed down manually, the central pressing block 954 at the bottom of the tire pressing frame 95 presses a wheel hub, the screw rods and the nuts at the tops of the three tire pressing blocks 953 at the outer edge are adjusted, the bottom ends of the three tire pressing blocks 953 at the outer edge are about 3mm away from the non-pneumatic tire (allowance is reserved for shrinkage of the non-pneumatic tire, and the non-pneumatic tire and the wheel hub are assembled in place), then the first driving oil cylinder 23 drives the lifting base 1 to descend, the expansion plate 323 descends to the lower side of the supporting top plate 7 to be separated from the non-pneumatic tire, the non-pneumatic tire loses expansion force and is shrunk and assembled with the wheel hub, and finally the handle rod 94 is lifted manually, so that the tire pressing blocks 953 ascend, and the assembled non-pneumatic tire is taken out.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.