Automatic unhooking sling device for hoisting giant tire blank

Abstract

The utility model relates to an automatic unhooking sling device for hoisting a giant tire blank, and belongs to the field of tire production equipment. A lifting hook adjusting frame is arranged, a fixing column is installed in the middle of the lifting hook adjusting frame, a fixing column hitching leg is welded to the middle of the fixing column, an unhooking double-taper sleeve capable of freely sliding up and down is arranged on the portion, below the fixing column hitching leg, of the fixing column in a sleeving mode, and the upper half portion and the lower half portion of the unhooking double-taper sleeve are two symmetrical frustums. The fixed column is sleeved with a hoisting sliding sleeve, hook lugs are evenly distributed on the periphery of the lower portion of the hoisting sliding sleeve, hooks are installed on the hook lugs through pin shafts, the hooks can fall freely, hoisting chain lugs are evenly distributed on the periphery of the upper end of the hoisting sliding sleeve, hoisting hooks are evenly distributed on the periphery of a hoisting hook adjusting frame in a hinged mode, and the upper ends of the hoisting hooks are connected with the hoisting chain lugs through hoisting chains. And a hoisting lug is arranged at the top end of the hoisting sliding sleeve. According to the utility model, the functions of hook hoisting and automatic descending unhooking can be completed by operating the crane, and the operation safety of an operator is ensured.

Description

Technical Field

[0001] The utility model relates to the field of vulcanized rubber testing, in particular to a giant tire embryo hoisting automatic unhooking hoisting device. Background Art

[0002] As we all know, in the field of tire manufacturing, the composition of tires includes tread, carcass, sidewall, bead and other parts. All parts need to be combined and rolled on the forming machine. In particular, the tread of large engineering radial tires and giant tires is produced by winding. After production, the tire blank is unloaded to the tire blank unloading turnover platform using the tire unloading ring provided by the equipment. The tire blank on the tire blank unloading turnover platform must be hoisted by a crane to the relevant area of ​​the tire blank storage turnover vehicle for storage or vulcanization. Due to the large and heavy characteristics of large engineering radial tires and giant tires, the single tire weight reaches 1-3.8 Tons, the tire blank diameter is about 3.6 meters, and the tire blank height is 1.6 meters. In order to facilitate the installation and removal of the sling, the original sling is designed as a 1 / 4 crescent-shaped opening sling. There is serious rubber extrusion and deformation at the sprocket mouth during the lifting process, which can easily lead to defects such as bubbles and lack of rubber at the sprocket mouth of the finished tire. During the use of the tire, the tire heel generates a lot of heat, resulting in reduced performance and early damage to the tire. In addition, during the lifting process, the operator needs to go to the tire blank unloading turnover platform and the tire blank storage turnover vehicle to install or remove the 1 / 4 crescent-shaped opening sling, which poses certain safety risks. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the utility model provides an automatic unhooking sling device for lifting giant tire blanks, which solves the problem of rubber squeezing at the opening position of the crescent-shaped opening sling. The operator does not need to install or remove the sling on the tire blank unloading turnover platform and the tire blank storage turnover vehicle.

[0004] The technical solution adopted by the utility model to solve the technical problems is: an automatic unhooking sling device for hoisting giant tire embryos is provided with a hook adjustment frame, which is characterized in that a fixed column is installed in the middle of the hook adjustment frame, a fixed column hanging foot is welded at the middle part of the fixed column, a unhooking double cone sleeve that can slide freely up and down is mounted on the fixed column below the fixed column hanging foot, the upper half and the lower half of the unhooking double cone sleeve are two symmetrical cones, a hoisting sleeve is mounted on the fixed column, hook ears are evenly distributed around the lower part of the hoisting sleeve, the hook is installed on the hook ear through a pin shaft, the hook can hang freely, and chain ears are evenly distributed around the upper end of the hoisting sleeve, and the hook adjustment frame is evenly hinged with hooks around the hook adjustment frame, the upper end of the hook is connected to the chain ear through a hoisting chain, and a hoisting ear is provided at the top of the hoisting sleeve.

[0005] The fixing column is reinforced around by reinforcement plates.

[0006] The hook adjustment frame is evenly provided with 6 long slots around it, and a hook is hinged in each long slot via a rotating shaft.

[0007] A hook protection pad is installed at the end of the hook.

[0008] The shape of the hook protection pad is consistent with the shape and diameter of the tire blank.

[0009] The slope of the outer surface of the fixing column hanging foot is consistent with the inclined surface of the end of the hook.

[0010] The conical surface of the unhooking double-conical sleeve is consistent with the inclined surface of the end of the hook.

[0011] The beneficial effect of the utility model is that it solves the problem of rubber squeezing at the opening position of the crescent-shaped opening hanger. The operator stands in a safe area on the ground and can complete the functions of hook lifting and automatic lowering and unhooking by operating the overhead crane, thereby eliminating the hidden danger of early tire damage and ensuring the operator's operating safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 A schematic structural diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the use state of the utility model.

[0015] In the figure, 1. hook adjustment frame, 2. fixed column, 3. reinforcement plate, 4. lifting sleeve, 5. hook ear, 6. hook, 7. fixed column hanging foot, 8. unhooking double cone sleeve, 9. lifting chain ear, 10. hook, 11. hook protection pad, 12. lifting chain, 13. lifting ear, A. tire blank, B. tire blank unloading turnover platform, C. tire blank storage turnover vehicle, C-1. upper plane of tire blank storage turnover vehicle, C-2. directional pneumatic wheel of tire blank storage turnover vehicle, C-3. steering pneumatic wheel of tire blank storage turnover vehicle, C-4. trailer hook of tire blank storage turnover vehicle. DETAILED DESCRIPTION

[0016] In the figure, the utility model is provided with a hook adjustment frame 1, a fixed column 2 is installed in the middle of the hook adjustment frame 1, the fixed column 2 is reinforced by a reinforcement plate 3 around, a fixed column hanging foot 7 is welded in the middle part of the fixed column 2, a decoupling double cone sleeve 8 that can slide freely up and down is provided between the fixed column hanging foot 7 and the reinforcement plate 3, the upper and lower parts of the decoupling double cone sleeve 8 are two symmetrical cones, a lifting sleeve 4 is set on the fixed column 2, four hook ears 5 are evenly distributed around the lower part of the lifting sleeve 4, four hooks 6 are installed on the hook ears 5 through pins, the hooks 6 can hang freely, and six evenly distributed chain ears 9 are provided around the upper end of the lifting sleeve 4, six long grooves are evenly distributed around the hook adjustment frame 1, each long groove is hinged with a hook 10 through a rotating shaft, the upper end of the hook 10 is connected to the chain ear 9 through a lifting chain 12, and a lifting ear 13 is provided at the top of the lifting sleeve 4. A hook protection pad 11 is installed at the end of the hook 10. The hook protection pad 11 is designed according to the shape and diameter of the tire embryo mouth to reduce damage to the tire mouth. The conical surface of the unhooking double cone sleeve 8 matches the inclined surface of the end of the hook 6. The slope of the outer surface of the fixed column hanging foot 7 matches the inclined surface of the end of the hook 6 to meet the functions of hooking and unhooking. When the lifting ear 13 moves up and down, the hook 6 can drive the lifting sliding sleeve 4 to move up and down. At the same time, the slope position of the hook 6 slides with the unhooking double cone sleeve 8 by its own weight to complete the position adjustment function of the hook 6.

[0017] The lifting ear 13 of the overhead crane is used to drive the lifting sleeve 4 to make vertical up and down movement on the fixed column 2, and the free droop of the hook 6 in the hook ear 5, and the change of the conical surface position of the fixed column hanging foot 7 and the unhooking double cone sleeve 8 drive the upper end chain ear 9 of the lifting sleeve 4 to link the lifting chain 12 and the hook 10 installed in the middle of the hook adjustment frame 1 to expand or contract. The operator controls the overhead crane to operate, and the lifting tire blank A is transferred from the tire blank unloading turnover platform B to the tire blank storage turnover vehicle C. The tire blank storage turnover vehicle C is respectively provided with a tire blank storage turnover vehicle upper surface C-1, and a pair of tire blank storage turnover vehicle directional inflatable wheels C-2 and a pair of tire blank storage turnover vehicle steering inflatable wheels C-3 are provided at the bottom. A tire blank storage turnover vehicle trailer hook C-4 is added in the middle of the tire blank storage turnover vehicle steering inflatable wheels C-3 at the front end of the tire blank storage turnover vehicle C to complete the transportation of the tire blank storage turnover vehicle C. Thereby, the functions of expansion and contraction lifting and automatic unhooking of the lifting device in the tire blank opening are completed, so as to achieve the purpose of lifting and transferring the tire blank A.

[0018] The specific operation plan is that the operator operates the traveling crane, and uses the traveling crane hook to lift the lifting sleeve 4 through the lifting ear 13, and drives the hook 6 with the lower end hook ear 5 of the lifting sleeve 4 to be lowered to the fixed column hanging foot 7 position under the guidance of the fixed column 2. The hook 6 freely hangs in the fixed column hanging foot 7 position, and the traveling crane is turned on for lifting. In the lifting process, the fixed column hanging foot 7 fixes the hook 6, so that the lifting sleeve 4 is in a low position, and the center distance between the lifting chain ear 9 and the hook 10 becomes shorter, so that the 6 load-bearing 2T lifting chains 12 are under the action of their own weight. The hook 10 moves downward in the hook adjustment frame 1 with the installation pin as the center of the circle, and drives the 6 hook protection pads 11 to move counterclockwise to reduce the diameter to the minimum state, and the operator operates the traveling crane to lift the tire blank automatic unhooking device to move Arrive at the position of unloading tire blank turnover platform B, align the center of the 6 hook protection pads 11 of the tire blank automatic unhooking device with the center of the upper mouth of the tire blank A and lower it to the upper mouth position. At this time, the hook adjustment frame 1 just falls on the outer side of the upper mouth of the tire blank A, and the 6 hook protection pads 11 are placed on the inner side of the upper mouth of the tire blank A at the same time. After the installation is completed, the operator continues to drive the hook ear 5 at the lower end of the lifting sliding sleeve 4 to lower the hook 6 to the position of the unhooking double cone sleeve 8 under the guidance of the fixed column 2. The hook 6 freely hangs at the position of the unhooking double cone sleeve 8 and is lifted again by the operator. Since the unhooking double cone sleeve 8 adopts a gap design and the cone surface coincides with the inclined surface of the hook 6, during the lifting process, the unhooking double cone sleeve 8 slowly moves upward under the guidance of the fixed column 2 due to the gravity clamping of the hook 6. When the unhooking double cone sleeve 8 is After the cone sleeve 8 contacts the bottom surface of the fixed column hanging foot 7, the unhooking double cone sleeve 8 cannot move up further. During the continued upward movement of the hook 6, due to the conical resistance of the unhooking double cone sleeve 8 and the fixed column hanging foot 7, the hook 6 is expanded and directly slides from the outer edge of the unhooking double cone sleeve 8 and the fixed column hanging foot 7 to the position above the fixed column hanging foot 7. Under the premise of no obstruction, the lifting continues, and the lifting sleeve 4 continues to move upward on the fixed column 2, driving the center distance between the lifting chain ear 9 and the lifting hook 10 to increase, so that the 6 load-bearing 2T lifting chains 12 are straightened and load-bearing. The hook 10 moves downward in the hook adjustment frame 1 with the installation pin as the center, driving the 6 hook protection pads 11 to move clockwise, increasing the diameter to the tire embryo mouth position, and continuing to lift the tire embryo A to separate and transport it from the tire embryo unloading turnover platform B. When the tire is transported to the top of the tire blank storage trolley C and aligned with the upper surface C-1 of the tire blank storage trolley, the operator operates the crane to lower the tire blank A to the upper surface C-1 of the tire blank storage trolley, and continues to operate the crane to lower the tire blank lifting automatic unhooking device, so that the hook adjustment frame 1 just falls on the outer side of the upper mouth of the tire blank A, and continues to lower the lifting sleeve 4, driving the lower end hook ear 5 and the hook 6 to be lowered to the position of the fixed column hanging foot 7 under the guidance of the fixed column 2, and the hook 6 freely hangs in the position of the fixed column hanging foot 7, and the crane is turned on for lifting. In the process of lifting, since the fixed column hanging foot 7 fixes the hook 6, the lifting sleeve 4 is in a low position, and the center distance between the lifting chain ear 9 and the hook 10 becomes shorter, so that the 6 load-bearing 2T lifting chains 12 are under the action of their own weight,The hook 10 moves downward in the hook adjustment frame 1 with the installation pin as the center, driving the 6 hook protection pads 11 to move counterclockwise to reduce the diameter to the minimum state. The operator operates the crane to lift the tire blank and the automatic unhooking device to take it out from the upper mouth of the tire blank A, and transport it to the special lifting device storage place for storage. The tire blank storage turnover vehicle C is transported to the designated position under the traction external force of the tire blank storage turnover vehicle trailer hook C-4 and the rolling action of the tire blank storage turnover vehicle directional inflatable wheel C-2 and the tire blank storage turnover vehicle steering inflatable wheel C-3. The process does not require the operator to stand on the edge position C-1 of the tire unloading platform B and the tire storage vehicle, eliminating the safety risks brought to the operator. In addition, the hook protection pad 11 is designed according to the shape and size of the tire A mouth. The 6 hook protection pads 11 are evenly distributed to achieve 80% of the matching circumferential size, and are in close contact with the tire mouth A weighing 1-3.8 tons. The defects such as bubbles and lack of glue inside the finished tire mouth caused by glue squeezing at the mouth are eliminated, and the tire heel generates heat during the use of the tire, resulting in reduced performance and the hidden danger of early damage to the tire.

Claims

1. A giant tire embryo lifting automatic unhooking lifting device, provided with a hook adjustment frame, characterized in that: A fixed column is installed in the middle of the hook adjustment frame, and a fixed column hanging foot is welded to the middle part of the fixed column. A double-conical sleeve for unhooking that can slide up and down freely is mounted on the fixed column below the fixed column hanging foot. The upper and lower parts of the double-conical sleeve for unhooking are two symmetrical cones. A lifting sleeve is mounted on the fixed column, and hook ears are evenly distributed around the lower part of the lifting sleeve. The hook is installed on the hook ear through a pin shaft, and the hook can hang freely. There are lifting chain ears evenly distributed around the upper end of the lifting sleeve, and the hook adjustment frame is evenly hinged with hooks. The upper end of the hook is connected to the lifting chain ear through a lifting chain, and a lifting ear is provided at the top of the lifting sleeve.

2. The automatic unhooking sling device for hoisting giant tire blanks according to claim 1 is characterized in that The fixing column is reinforced around by reinforcement plates.

3. The automatic unhooking sling device for hoisting giant tire blanks according to claim 1 is characterized in that The hook adjustment frame is evenly provided with 6 long slots around it, and a hook is hinged in each long slot via a rotating shaft.

4. The automatic unhooking sling device for hoisting giant tire blanks according to claim 1 is characterized in that A hook protection pad is installed at the end of the hook.

5. The automatic unhooking sling device for hoisting giant tire blanks according to claim 4 is characterized in that The shape of the hook protection pad is consistent with the shape and diameter of the tire blank.

6. The automatic unhooking sling device for hoisting giant tire blanks according to claim 1 is characterized in that The slope of the outer surface of the fixing column hanging foot is consistent with the inclined surface of the end of the hook.

7. The automatic unhooking lifting device for lifting giant tire blanks according to claim 1 is characterized in that The conical surface of the unhooking double-conical sleeve is consistent with the inclined surface of the hook end.

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