Large engineering tire and giant tire embryo mouth protection cage device

Abstract

The utility model relates to a protective retainer device for the embryo mouth of a large engineering tire and a giant tire, and belongs to the field of tire production equipment. The middle of a fixed outer sleeve is connected to a tire embryo storage turnover vehicle through a bottom plate, a lifting sleeve is arranged in the middle of the fixed outer sleeve, an asynchronous double-lead trapezoidal screw is installed in the lifting sleeve, and is connected to the fixed outer sleeve through an asynchronous double-lead trapezoidal screw positioning bearing, a swing connecting rod seat is freely placed above the lifting and moving driving ring and is connected to the swing connecting rod through a clearance fitting pin shaft, the other end of the swing connecting rod is connected to the support connecting rod through a clearance pin shaft, one end of the support connecting rod is connected to the support connecting rod seat through a clearance pin shaft, an input bevel gear is arranged at the lower end of the asynchronous double-lead trapezoidal screw, and both end surfaces of the asynchronous double-lead trapezoidal screw are provided with fixed baffles, which are meshed with the input bevel gear and provided with an output bevel gear, which is connected to the opening and closing lifting hand wheel through a connecting rod, and two groups of supporting bearing seats are arranged in the middle of the connecting rod to connect to the tire embryo storage turnover vehicle.

Description

Technical Field

[0001] The utility model relates to the field of tire production equipment, in particular to a protective retaining frame device for a large engineering tire and a giant tire embryo. Background Art

[0002] As we all know, in the field of tire manufacturing, the composition of tires includes tread, carcass, sidewall, bead and other components. All components need to be combined and rolled on the molding machine. However, due to the large size of large engineering tires and giant tires, it is difficult to use the tread bonding process. Therefore, the treads of large engineering tires and giant tires are all produced by tread winding. After production, the tire blanks are unloaded to the tire blank unloading turnover platform using the tire unloading ring of the equipment, and then hoisted and transferred to the tire blank storage turnover vehicle, and then transferred to the relevant area for storage or vulcanization. Due to the large and heavy characteristics of large engineering radial tires and giant tires, the single tire weight reaches about 1-3.8 tons, the tire blank diameter reaches about 3.6 meters, and the tire blank height is about 1.5 meters. Reaching 1.6 meters, the temperature of the tire embryo is high due to the winding. If the tire is unloaded after cooling on the equipment, the storage process can reduce the deformation of the bead to a certain extent, but it affects 30% of the production efficiency. If the tire is unloaded in time after production, the bead part is not supported and protected in time. There will be serious quality risks such as bead sinking and deformation and tire body deformation during storage, which may easily lead to bubbles and glue shortage inside the bead of the finished tire, as well as defects such as tire body bending deformation and tire body bubbles. During the use of the tire, the tire heel generates a lot of heat, and the tire body bending deformation or bubbles lead to reduced bearing capacity, resulting in reduced performance and early damage to the tire. There are certain efficiency losses and quality risks. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a protective retainer device for a large engineering tire and a giant tire embryo, which ensures that the embryo mouth of the large engineering tire and the giant tire with large size embryos is kept from deforming and sinking during the storage link.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a protective retaining frame device for a large engineering tire and a giant tire embryo mouth, provided with a fixed outer sleeve, the middle of the fixed outer sleeve is connected to the embryo storage turnover vehicle through a bottom plate, and is reinforced by a supporting square tube. Its characteristics are that a lifting sleeve is provided in the middle of the fixed outer sleeve, an asynchronous double-lead trapezoidal screw is installed in the lifting sleeve, and is connected to the fixed outer sleeve through an asynchronous double-lead trapezoidal screw positioning bearing, the lower half of the asynchronous double-lead trapezoidal screw is designed as a small-lead trapezoidal copper nut fixing sleeve, which fixes the small-lead trapezoidal copper nut to the lower end of the lifting sleeve, and the upper half of the asynchronous double-lead trapezoidal screw is designed as a large-lead trapezoidal copper nut fixing sleeve, which fixes the large-lead trapezoidal copper nut through a guide slider and a lifting sleeve. The guide groove on the sliding sleeve is fixedly connected to the lifting and moving driving ring. A swing connecting rod seat is freely placed above the lifting and moving driving ring and is connected to the swing connecting rod through a clearance pin. The other end of the swing connecting rod is connected to the supporting connecting rod through a clearance pin. One end of the supporting connecting rod is connected to the supporting connecting rod seat through a clearance pin. The supporting connecting rod seat and the lifting sliding sleeve adopt an integrated design. The other end of the supporting connecting rod is connected to the nylon sub-mouth corner guard through a clearance bolt. An input bevel gear is provided at the lower end of the asynchronous double-lead trapezoidal screw, and fixed baffles are provided on both end surfaces of the asynchronous double-lead trapezoidal screw. An output bevel gear is meshed with the input bevel gear and is connected to the opening and closing lifting handwheel through a connecting rod. Two sets of supporting bearing seats are provided in the middle of the connecting rod and are connected to the tire blank storage turnover car.

[0005] The asynchronous dual-lead trapezoidal screw adopts a 2:1 pitch lead design.

[0006] The middle part of the lifting sleeve is symmetrically provided with two guide grooves.

[0007] The outer side of the small-lead trapezoidal copper nut fixing sleeve is provided with a copper-containing polytetrafluoroethylene guide belt A for guiding in the fixing sleeve.

[0008] A copper-containing polytetrafluoroethylene guide belt B is provided on the outer side of the large-lead trapezoidal copper nut fixing sleeve for guiding in the lifting sleeve.

[0009] The end of the supporting connecting rod is connected to the nylon corner guard through a gap bolt.

[0010] The shape of the nylon spigot corner protector is consistent with the shape and diameter of the tire blank spigot, and a single-axis fixing method is adopted.

[0011] The input bevel gear and the output bevel gear are vertically meshed at an angle of 90°.

[0012] The fixed outer sleeve is reinforced by supporting square tubes.

[0013] The beneficial effect of the utility model is that it can solve the problem that the original process needs to be cooled on the equipment before unloading the tire, which affects the production efficiency by 30%, and the tire mouth is supported and protected in time, and the quality risks such as serious tire mouth sinking and deformation and tire body deformation in the storage process are completely eliminated, and the defects such as bubbles and glue shortages inside the tire mouth of the finished product, as well as tire body bending deformation, tire body bubbles, etc. are eliminated, the tire load-bearing capacity and performance are improved, the tire is avoided from being damaged in the early stage, and the efficiency loss and quality risk are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 The structural schematic diagram of the utility model is also a schematic diagram of a closed state.

[0016] Figure 2 It is a schematic diagram of the utility model in the rising and expanding state.

[0017] In the figure, 1. fixed outer sleeve, 2. bottom plate, 3. supporting square tube, 4. lifting sleeve, 5. asynchronous double lead trapezoidal screw, 6. asynchronous double lead trapezoidal screw positioning bearing, 7. small lead trapezoidal copper nut fixing sleeve, 8. small lead trapezoidal copper nut, 9. copper-containing polytetrafluoroethylene guide belt A, 10. large lead trapezoidal copper nut, 11. large lead trapezoidal copper nut fixing sleeve, 12. guide slider, 13. guide groove, 14. lifting and moving drive ring, 15. copper-containing polytetrafluoroethylene guide belt B, 16. swing connecting rod seat, 17. pin, 18 .Swing connecting rod, 19.Support connecting rod, 20.Support connecting rod seat, 21.Gap bolt, 22.Nylon sub-mouth corner guard, 23.Input bevel gear, 24.Fixed baffle, 25.Output bevel gear, 26.Connecting rod, 27.Open and close lifting hand wheel, 28.Support bearing seat, A.Tire blank, B.Tire blank storage turnover vehicle, B-1.The upper plane of the tire blank storage turnover vehicle, B-2.The directional pneumatic wheel of the tire blank storage turnover vehicle, B-3.The steering pneumatic wheel of the tire blank storage turnover vehicle, B-4.The trailer hook of the tire blank storage turnover vehicle. DETAILED DESCRIPTION

[0018] In the figure, the utility model is provided with a fixed outer sleeve 1, the middle of the fixed outer sleeve 1 is connected to the tire blank storage turnover vehicle B through a bottom plate 2, and is reinforced by a supporting square tube 3, a lifting sleeve 4 is provided in the middle of the fixed outer sleeve 1, an asynchronous double-lead trapezoidal screw 5 is installed in the lifting sleeve 4, and is connected to the fixed outer sleeve 1 through an asynchronous double-lead trapezoidal screw positioning bearing 6, the lower half of the asynchronous double-lead trapezoidal screw 5 is designed as a small-lead trapezoidal copper nut fixing sleeve 7 to fix the small-lead trapezoidal copper nut 8 with the lower end of the lifting sleeve 4, and a copper-containing polytetrafluoroethylene guide belt A is added to the outer side of the small-lead trapezoidal copper nut fixing sleeve 7 9 is guided in the fixed sleeve 1, the upper part of the asynchronous double-lead trapezoidal screw 5 is designed as a large-lead trapezoidal copper nut fixing sleeve 11, which fixes the large-lead trapezoidal copper nut 10 with the lifting and moving driving ring 14 through the guide slider 12 and the symmetrical guide groove 13 on the lifting sleeve 4, and the copper-containing polytetrafluoroethylene guide belt B15 is added to the outside of the large-lead trapezoidal copper nut fixing sleeve 11 to guide in the lifting sleeve 4, and the swing connecting rod seat 16 is freely placed above the lifting and moving driving ring 14 and is connected to the swing connecting rod 18 through the clearance fitting pin 17. The other end of the swing connecting rod 18 is connected to the 6 sets of supporting connecting rods 19 through the clearance pin 17. One end of the support connecting rod 19 is connected to the support connecting rod seat 20 through the gap pin shaft 17, the support connecting rod seat 20 and the lifting sleeve 4 are integrated into a design, and the other end of the support connecting rod 19 is connected to the nylon angle protector 22 through the gap bolt 21. An input bevel gear 23 is provided at the lower end of the asynchronous double-lead trapezoidal screw 5, and fixed baffles 24 are provided on both end surfaces of the asynchronous double-lead trapezoidal screw 5. An output bevel gear 25 is vertically meshed with the input bevel gear 23 at 90°, and is connected to the opening and closing lifting hand wheel 27 through a connecting rod 26. Two sets of support bearing seats 28 are provided in the middle of the connecting rod 26 and are connected to the tire blank storage turnover vehicle B.

[0019] The asynchronous double-lead trapezoidal screw 5 adopts a 2:1 pitch lead design to ensure lifting and lowering motion while opening and closing. The middle part of the lifting sleeve 4 is symmetrically provided with two guide grooves 13 to meet the linear motion positioning during the lifting process. The outer sides of the small-lead trapezoidal copper nut fixing sleeve 7 and the large-lead trapezoidal copper nut fixing sleeve 11 are respectively provided with a copper-containing polytetrafluoroethylene guide belt A9 and a copper-containing polytetrafluoroethylene guide belt B15 to reduce the friction of the lifting movement and play a role in center positioning, thereby reducing the center position deviation during the lifting process. Nylon spigot corner guards 22 are added to the ends of the 6 groups of support connecting rods 19, and are designed according to the shape and diameter of the tire embryo spigot. A single-axis fixing method is adopted to automatically adjust the matching state as the spigot shape changes, effectively reducing damage to the tire spigot. The swing connecting rod seat is designed with a gap, and the cooperation with the lifting sleeve 4 through the gap can achieve the function of falling by its own weight. In order to achieve the synchronization of opening, closing and lifting with stable precision, the asynchronous double-lead trapezoidal screw 5 has a small-lead trapezoidal copper nut 8 connected and fixed with the lifting sleeve 4 to complete the lifting function by adjusting the screw movement, but it cannot effectively ensure that the state of opening and closing reaches the standard position at the same time of lifting. For this reason, the lifting and moving driving ring 14 is designed to lift and lower. The lifting and lowering is completed by adjusting the screw movement. The lifting and lowering driving ring 14 drives the swing connecting rod seat 16 to cooperate with the lifting sleeve 4 through the gap to achieve the function of falling by self-weight and driving jacking. The bottom of the asynchronous double-lead trapezoidal screw 5 is provided with an input bevel gear 23 and an output bevel gear 25 through 90° vertical meshing. By adjusting the opening, closing and lifting hand wheel 27 on the outside of the tire blank storage turnover vehicle B, the connecting rod 26, the input bevel gear 23, and the output bevel gear 25 are driven to realize the rotation of the asynchronous double-lead trapezoidal screw 5.

[0020] The specific operation scheme is that after the production is completed, the operator controls the crane to operate, and hoist the tire blank A from the tire blank unloading platform to the tire blank storage vehicle B. The tire blank storage vehicle B is provided with a tire blank storage vehicle upper plane B-1, a pair of tire blank storage vehicle directional pneumatic wheels B-2 and a pair of tire blank storage vehicle steering pneumatic wheels B-3 at the bottom, and a tire blank storage vehicle trailer hook B-4 is added between the front tire blank storage vehicle steering pneumatic wheels B-3 of the tire blank storage vehicle B to complete the transportation of the tire blank storage vehicle B. After the tire blank is transported to the designated position, the opening and closing lifting hand wheel 27 is operated to complete the opening and closing of the nylon sub-mouth corner guard 22 at the set position height, so as to achieve the purpose of protecting and maintaining the sub-mouth of the tire blank A. The clockwise operation rotates and shakes the lifting hand wheel 27 to open and close, and drives the connecting rod 26 supported by the supporting bearing seat 28 to drive the output bevel gear 25 to rotate, and drives the input bevel gear 23 to rotate and drive the asynchronous double-lead trapezoidal screw 5. Under the support of the driving asynchronous double-lead trapezoidal screw positioning bearing 6, it rotates in the fixed sleeve 1 and the lifting sleeve 4. During the rotation process, the small lead trapezoidal copper nut 8 designed on the lower part of the asynchronous double-lead trapezoidal screw 5 passes through the small lead trapezoidal copper nut fixing sleeve 7. The lifting sleeve 4 is connected to the lifting sleeve 4. Under the positioning effect of the copper-containing polytetrafluoroethylene guide belt A, the lifting sleeve 4 makes a straight upward movement in the fixed sleeve 1. The large-lead trapezoidal copper nut 10 designed on the upper part of the asynchronous double-lead trapezoidal screw 5 passes through the large-lead trapezoidal copper nut fixing sleeve 11 and the guide groove 13 symmetrically connected to the middle part of the lifting sleeve 4. The guide slider 12 is used to position and connect with the lifting and moving driving ring 14. The outer side of the large-lead trapezoidal copper nut fixing sleeve 11 is provided with a copper-containing polytetrafluoroethylene guide belt B15. The guide belt B15, the guide groove 13 and the guide slider 12 ensure that the lifting and moving driving ring 14 moves upward on the outside of the lifting sleeve 4. When the lifting and moving driving ring 14 moves upward on the outside of the lifting sleeve 4, the swing connecting rod seat 16 that is lifted and matched with the outer clearance of the lifting sleeve 4 is opened on the fulcrum with the 6 sets of supporting connecting rod seats 20 as the center of the circle through the pin 17 and the 6 sets of supporting connecting rods 19, driving the nylon sub-mouth corner guard 22 at the end of the supporting connecting rod 19 to automatically adjust the clearance bolt 21. Under the joint, it is matched with the inner side of the mouth of the embryo A to maintain support. Taking into account the disadvantages of the large difference between the lifting space and the opening and closing stroke, and the high distance and precision requirements of the double-lead movement, it is extremely difficult to adjust to the optimal state. Therefore, the lead of lower: upper = 1:2 and the upper drive passive jacking principle are adopted. While the lifting sleeve 4 moves upward, the upper drive jacking runs twice the distance to fully open the support connecting rod 19 at the fulcrum with the support connecting rod seat 20 as the center of the circle, thereby realizing the function of protecting and maintaining the mouth.On the contrary, the counterclockwise rotation and shaking of the opening and closing lifting hand wheel 27 drives the connecting rod 26 supported by the supporting bearing seat 28 to drive the output bevel gear 25 to rotate, driving the tire embryo mouth protection retaining frame to make a closing and descending movement, and the tire embryo A is transferred and vulcanized, completing the tire embryo mouth protection and retention function during the entire storage process. This design is in close contact with the mouth of the tire embryo A weighing 1-3.8 tons, eliminating the quality risks such as serious mouth sinking deformation and tire body deformation during the storage process, and eliminating bubbles and glue shortages inside the finished tire mouth, as well as defects such as tire body bending deformation and tire body bubbles, thereby improving the tire load-bearing capacity and performance, avoiding early tire damage, and reducing efficiency losses and quality risks.

Claims

1. A protective retainer device for a large engineering tire and a giant tire embryo, provided with a fixed outer jacket, the middle of which is connected to a tire embryo storage trolley through a bottom plate, characterized in that: A lifting sleeve is provided in the middle of the fixed outer sleeve, an asynchronous double-lead trapezoidal screw is installed in the lifting sleeve, and is connected to the fixed outer sleeve through an asynchronous double-lead trapezoidal screw positioning bearing, the lower half of the asynchronous double-lead trapezoidal screw is designed as a small-lead trapezoidal copper nut fixing sleeve, which fixes the small-lead trapezoidal copper nut to the lower end of the lifting sleeve, and the upper half of the asynchronous double-lead trapezoidal screw is designed as a large-lead trapezoidal copper nut fixing sleeve, which fixes the large-lead trapezoidal copper nut to the lifting and moving driving ring through a guide slider and a guide groove on the lifting sleeve, and above the lifting and moving driving ring The freely placed swing connecting rod seat is connected to the swing connecting rod through a clearance fit pin shaft, and the other end of the swing connecting rod is connected to the support connecting rod through a clearance pin shaft. One end of the support connecting rod is connected to the support connecting rod seat through a clearance pin shaft. The support connecting rod seat and the lifting sleeve adopt an integrated design. An input bevel gear is provided at the lower end of the asynchronous double-lead trapezoidal screw, and fixed baffles are provided on both end surfaces of the asynchronous double-lead trapezoidal screw. An output bevel gear is meshed with the input bevel gear and is connected to the opening and closing lifting handwheel through a connecting rod. Two sets of supporting bearing seats are provided in the middle of the connecting rod and are connected to the tire blank storage turnover car.

2. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1 is characterized in that The asynchronous dual-lead trapezoidal screw adopts a 2:1 pitch lead design.

3. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1 is characterized in that The middle part of the lifting sleeve is symmetrically provided with two guide grooves.

4. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1 is characterized in that The outer side of the small-lead trapezoidal copper nut fixing sleeve is provided with a copper-containing polytetrafluoroethylene guide belt A for guiding in the fixing sleeve.

5. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1 is characterized in that A copper-containing polytetrafluoroethylene guide belt B is provided on the outer side of the large-lead trapezoidal copper nut fixing sleeve for guiding in the lifting sleeve.

6. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1 is characterized in that The end of the supporting connecting rod is connected to the nylon corner guard through a gap bolt.

7. The large engineering tire and giant tire embryo mouth protection cage device according to claim 6 is characterized in that The shape of the nylon spigot corner protector is consistent with the shape and diameter of the tire blank spigot, and a single-axis fixing method is adopted.

8. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1 is characterized in that The input bevel gear and the output bevel gear are vertically meshed at an angle of 90°.

9. The large engineering tire and giant tire embryo mouth protection cage device according to claim 1, characterized in that The fixed outer sleeve is reinforced by supporting square tubes.

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