Large casting hoisting device

Abstract

A large casting hoisting device belongs to the technical field of casting hoisting and comprises a hoisting plate, connecting plates are hinged to the two ends of the hoisting plate, driving plates are hinged to the lower ends of the connecting plates respectively, the two sets of driving plates are arranged in a crossed mode, and a shaft rod is rotationally installed at the crossed position of one set of driving plates. The shaft rods extend in the length direction of the driving plates, through holes matched with the shaft rods are formed in the crossed positions of the other set of driving plates, the other set of driving plates movably sleeve the shaft rods through the through holes, the two sets of driving plates can relatively slide in the axis direction of the shaft rods, and then an X-shaped shear fork structure capable of being adjusted in an opening and closing mode is formed. A clamping plate is integrally formed at the lower end of each driving plate, and the two clamping plates are oppositely arranged to form a lateral clamping structure for the large casting. And a positioning lifting unit is arranged on the outer wall of the clamping plate. According to the device, the hoisting and clamping fitting degree can be improved, the casting is prevented from moving and falling during hoisting, and the surface of the casting is prevented from being scratched.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting hoisting, in particular to a large casting hoisting device. BACKGROUND

[0002] In the production and manufacturing process of mining machinery, the hoisting process of core large castings such as toothed rollers, crushing cavities and middle grooves of transfer machines is crucial to equipment assembly precision and casting integrity.

[0003] When the existing general hoisting device is used to hoist mining machinery parts, the toothed roller surface is provided with protruding teeth for crushing materials, the inner wall of the crushing cavity is provided with reinforcing ribs and a discharge chute, and the side wall of the middle groove of the transfer machine is provided with a connecting flange hole and a lubrication channel. These special structures result in insufficient fitting rate of traditional flat plate type clamping parts and mining machinery parts, leading to insufficient clamping fitting rate and inability to form a stable clamping foundation. Mining machinery parts are mostly asymmetric structures, which are prone to up and down movement under the influence of gravity during hoisting, which may cause subsequent assembly precision deviation or even cause the castings to fall. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a large casting hoisting device, which at least partially solves the problems raised in the background art.

[0005] The technical scheme adopted by the present application is as follows: a large casting hoisting device, comprising: A lifting plate is hingedly connected at both ends with a connecting plate, the lower end of the connecting plate is hingedly connected with a driving plate, and two groups of driving plates are arranged in a cross shape. A shaft rod is rotatably installed at the cross position of one group of driving plates and extends along the length direction of the driving plate. A through hole adapted to the shaft rod is formed at the cross position of the other group of driving plates and the shaft rod is movably sleeved on the through hole. The two groups of driving plates can slide relative to each other along the axis of the shaft rod, thereby forming an X-shaped scissor structure that can be opened and closed. Each group of driving plates is integrally formed with a clamping plate at the lower end, and the two groups of clamping plates are arranged opposite to each other to form a lateral clamping structure for large castings. The outer wall of the clamping plate is provided with a positioning and lifting unit.

[0006] Further, the positioning and lifting unit comprises a rotating disc and a positioning baffle. The rotating disc is arranged on the outer wall of the clamping plate through a rotating connection structure, and limit sliding blocks are symmetrically arranged on the opposite two side walls of the rotating disc. The positioning baffle has an L-shaped structure, including a longitudinal segment for cooperating with the rotating disc and a transverse segment for lifting the bottom of the casting. A fitting guide hole is formed in the longitudinal segment, and limit holes are oppositely arranged on the two walls of the fitting guide hole. The limit holes and the limit sliding blocks are arranged in matching mode. The positioning baffle is sleeved outside the rotating disc through the fitting guide hole. The upper wall of the rotating disc is provided with an adjusting unit for driving the positioning baffle to ascend and descend along the rotating disc, thereby adjusting the fitting height of the horizontal section with the bottom of the casting, and adapting to large castings of different thicknesses.

[0007] In a further embodiment, the adjusting unit is a screw rod, the lower end of the screw rod is arranged on the upper wall of the rotating disc through a bearing, and the axis direction of the screw rod is consistent with the axial direction of the rotating disc. The upper wall of the longitudinal section of the positioning baffle is provided with a threaded hole, and the screw rod is movably arranged in the threaded hole. The upper end of the screw rod is provided with a rotating handle, and the rotating handle is provided with anti-skid lines.

[0008] In another embodiment, the adjusting unit is a hydraulic rod, the hydraulic rod is fixedly arranged on the rotating disc, and the movable end of the hydraulic rod is fixedly arranged on the upper wall of the longitudinal section of the positioning baffle.

[0009] In a further embodiment, the side of the horizontal section of the positioning baffle facing the casting is provided with a buffer layer, and the buffer layer is made of polyurethane material.

[0010] Further, the top of the hanging plate is provided with a driving unit, and the driving unit is arranged at the middle line position between the two groups of first connecting plates, the driving end of the driving unit is movably arranged on the shaft rod, and the shaft rod is fixedly arranged on the rotating disc. The driving unit is an electric push rod.

[0011] In a further embodiment, the upper wall of the hanging plate is provided with a lifting ring.

[0012] Further, the inner wall of the clamping plate is provided with a comb-shaped reinforcing plate, the comb-shaped reinforcing plate includes a rectangular base plate completely fitted with the inner wall of the clamping plate and a plurality of comb teeth on the side end face facing the casting. The plurality of comb teeth are uniformly and spacedly distributed along the length direction of the base plate.

[0013] The beneficial effects achieved by the above structure are as follows: The driving unit drives the shaft rod to slide, the opening and closing amplitude of the clamping plate can be flexibly adjusted to adapt to large castings of different widths, the irregular structures on the side face of the casting can be avoided through the comb tooth spacing grooves of the comb-shaped reinforcing plate, and the clamping fitting degree is improved; the positioning and lifting unit adjusts the lifting direction through the rotation of the rotating disc, and the positioning baffle is precisely lifted through the adjusting unit, so that castings of different thicknesses can be adapted and the bottom is lifted, and the clamping plate is clamped laterally to form a two-way fixation, effectively preventing the castings from moving or falling during hoisting, and the buffer layer can avoid scratching the surface of the casting. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The three-dimensional structure of the large casting hoisting device is shown Figure 1 . Figure 2A schematic diagram of the three-dimensional structure of the large casting hoisting device proposed in the embodiment of the present application Figure 2 ; Figure 3 A schematic diagram of the three-dimensional structure of the large casting hoisting device proposed in the embodiment of the present application Figure 1 An enlarged view of A in the embodiment Figure 4 A schematic diagram of the three-dimensional structure of the comb-shaped reinforcing plate proposed in the embodiment of the present application.

[0015] 1, hanging plate, 2, connecting plate, 3, driving plate, 4, shaft, 5, through hole, 6, clamping plate, 7, positioning and lifting unit, 71, turntable, 72, positioning baffle, 711, limit sliding block, 721, longitudinal section, 722, transverse section, 723, embedded guide hole, 724, limit hole, 8, adjusting unit, 9, screw, 10, screw hole, 11, rotating handle, 12, hydraulic rod, 13, buffer layer, 14, driving unit, 15, lifting ring, 16, comb-shaped reinforcing plate, 17, base plate, 18, comb teeth.

[0016] The accompanying drawings are used to provide a further understanding of the embodiments and constitute a part of the specification, which are used together with the embodiments to explain and are not intended to limit the embodiments. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection.

[0018] In the description of the embodiments, it should be understood that the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments.

[0019] When the existing general hoisting device is used for hoisting mine machinery parts, the tooth roll surface is provided with protruding teeth for crushing materials, the inner wall of the crushing cavity is provided with reinforcing ribs and a discharge chute, and the middle slot sidewall of the transfer machine is provided with a connecting flange hole and a lubrication channel. These special structures result in insufficient fitting rate of the traditional flat plate type clamping part and the mine machinery part, leading to insufficient clamping fitting rate and unable to form a stable clamping foundation. The mine machinery parts are mostly asymmetric structures, which are prone to up and down movement under the influence of gravity during hoisting, which may cause subsequent assembly precision deviation, or even cause the casting to fall.

[0020] In view of the above problems, the present application proposes and discloses a large casting hoisting device, which can improve the hoisting and clamping fit degree, prevent the casting from shifting and falling during hoisting, and avoid scratching the surface of the casting.

[0021] As shown in Figure 1 and Figure 2 , the present disclosure provides a large casting hoisting device, which comprises: The hanging plate 1 is hingedly provided with a connecting plate 2 at both ends, the lower end of the connecting plate 2 is hingedly provided with a driving plate 3, and the two groups of driving plates 3 are cross-shaped. A shaft rod 4 is rotatably installed at the cross position of one group of driving plates 3, the shaft rod 4 extends along the length direction of the driving plate 3, and the cross position of the other group of driving plates 3 is provided with a through hole 5 matched with the shaft rod 4 and movably sleeved on the shaft rod 4 through the through hole 5. The two groups of driving plates 3 can slide relative to each other along the axis direction of the shaft rod 4, thereby forming an openable and closable X-shaped scissor structure. The lower end of each group of driving plates 3 is integrally provided with a clamping plate 6, and the two groups of clamping plates 6 are oppositely arranged to form a lateral clamping structure for the large casting. The outer wall of the clamping plate 6 is provided with a positioning and lifting unit 7.

[0022] In this embodiment, the hanging plate 1 serves as the hoisting and carrying base of the device, and the top thereof is used for connecting with external hoisting equipment. When hoisting and clamping the large casting, external force drives the two groups of cross-shaped driving plates 3 to change the opening angle of the X-shaped scissor structure, and drives the two groups of clamping plates 6 integrally formed at the lower end to move close to or away from each other synchronously, so that the clamping plate 6 is attached to the side of the casting. Then, the hanging plate 1 is pulled upward by the external hoisting equipment, and after the hanging plate 1 is stressed, the connecting plates 2 at both ends thereof transmit the pulling force downward through the hinged structure, drive the X-shaped scissor structure of the two groups of driving plates 3 to further tighten, and the clamping plate 6 generates a lateral clamping force on the side of the casting. The clamping force increases synchronously with the increase of the hoisting pulling force, so that the clamping does not loosen during hoisting. At the same time, the positioning and lifting unit 7 on the outer wall of the clamping plate 6 is adjusted to the bottom of the casting, thereby forming a bottom lifting force on the casting, and realizing two-way fixation in cooperation with the lateral clamping force, thereby increasing the stability of hoisting the large casting. The casting is not easy to deviate horizontally and fall during hoisting.

[0023] As shown in Figure 1 , Figure 2 and Figure 3As shown, the positioning lifting unit 7 comprises a rotating disc 71 and a positioning baffle 72, the rotating disc 71 is arranged on the outer wall of the clamp plate 6 through a rotating connection structure, and limit sliding blocks 711 are symmetrically arranged on the opposite two side walls of the rotating disc 71; the positioning baffle 72 is in an L-shaped structure, comprising a longitudinal segment 721 for cooperating with the rotating disc 71 and a transverse segment 722 for lifting the bottom of the casting; a matching guide hole 723 is formed in the longitudinal segment 721, and limit holes 724 are oppositely arranged on the two walls of the matching guide hole 723, and the limit holes 724 are matched with the limit sliding blocks 711; the positioning baffle 72 is sleeved outside the rotating disc 71 through the matching guide hole 723; An adjusting unit 8 is arranged on the upper wall of the rotating disc 71, which is used to drive the positioning baffle 72 to ascend and descend along the rotating disc 71, so as to adjust the fitting height of the transverse segment 722 with the bottom of the casting, and adapt to large castings of different thicknesses.

[0024] In this embodiment, the positioning baffle is sleeved outside the rotating disc 71 through the matching guide hole 723, and the limit sliding blocks 711 are movably arranged in the limit holes 724, so that the positioning baffle 72 can only ascend and descend along the axial direction of the rotating disc 71, and cannot rotate or deviate laterally relative to the rotating disc 71; the rotating disc 71 can drive the positioning baffle 72 to rotate, so as to avoid interfering with the clamp plate 6 to clamp the casting; according to the position of the bottom of the large casting, the positioning baffle can be adjusted to be vertically downward through the rotating disc 71, and then the height of the transverse segment 722 of the positioning baffle is adjusted through the adjusting unit 8, so that the transverse segment 722 is tightly fitted with the bottom of the casting, and the lifting height adaptation is completed.

[0025] As shown in the drawings, Figure 1 In one embodiment, the adjusting unit 8 is a screw rod 9, the lower end of the screw rod 9 is arranged on the upper wall of the rotating disc 71 through a bearing, and the axial direction of the screw rod 9 is consistent with the axial direction of the rotating disc 71; A screw hole 10 is matched arranged on the upper wall of the longitudinal segment 721 of the positioning baffle 72, and the screw rod 9 is movably arranged in the screw hole 10 through threads; A rotating handle 11 is arranged on the upper end of the screw rod 9, and anti-skid lines are arranged on the rotating handle 11.

[0026] The rotating handle 11 can be rotated around the axis to drive the screw rod 9 to rotate, since the lower end of the screw rod 9 is rotationally connected with the rotating disc 71, and the positioning baffle 72 is constrained by the cooperation of the limit sliding blocks 711 and the limit holes 724, and can only move linearly along the axis of the rotating disc 71. When the rotating handle 11 is rotated clockwise, the screw rod 9 drives the positioning baffle 72 to move downward along the axial direction of the rotating disc 71 through threads, and then drives the transverse segment 722 to approach the bottom of the casting; when the rotating handle 11 is rotated counterclockwise, the screw rod 9 drives the positioning baffle 72 to move upward along the axial direction of the rotating disc 71 through threads, and then drives the transverse segment 722 to move away from the bottom of the casting; by controlling the number of rotation of the handle, the lifting height of the positioning baffle 72 can be accurately adjusted until the transverse segment 722 is completely fitted with the bottom of the casting, so as to meet the lifting requirements of castings of different thicknesses.

[0027] As shown in Figure 2, in another embodiment, the adjustment unit 8 is a hydraulic rod 12, which is fixedly mounted on the turntable 71, and the movable end of the hydraulic rod 12 is fixedly mounted on the upper wall of the longitudinal section 721 of the positioning baffle 72.

[0028] The positioning baffle 72 is raised and lowered by the movable end of the hydraulic rod 12, and the lifting height of the horizontal section 722 of the positioning baffle 72 can be adjusted so that it fits completely with the bottom of the casting, thus meeting the lifting requirements of castings of different thicknesses.

[0029] like Figure 1 and Figure 2 As shown, the lateral section 722 of the positioning baffle 72 is provided with a buffer layer 13 on the side facing the casting, and the buffer layer 13 is made of polyurethane material.

[0030] like Figure 1 and Figure 2 As shown, the top of the hanging plate 1 is provided with a drive unit 14, which is located at the center line between the two sets of first connecting plates 2. The drive end of the drive unit 14 is movably inserted through the top plate and fixed on the shaft 4.

[0031] By pushing and pulling the shaft 4 through the drive unit 14, the scissor structure formed by the drive plate 3 can be opened and closed, thereby realizing the clamping action of the clamping plate 6.

[0032] In this embodiment, the drive unit 14 is an electric push rod.

[0033] like Figure 1 and Figure 2 As shown, the upper wall of the hanging plate 1 is provided with a hanging ring 15.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the inner wall of the clamping plate 6 is provided with a comb-shaped reinforcing plate 16. The comb-shaped reinforcing plate 16 includes a rectangular base plate 17 that is completely attached to the inner wall of the clamping plate 6 and multiple sets of comb teeth 18 facing one end face of the casting. In this embodiment, multiple sets of comb teeth 18 are evenly spaced along the length of the substrate 17.

[0035] The sides of large castings such as mining machinery parts often have irregular surfaces such as teeth, discharge grooves, and reinforcing ribs. The comb teeth 18 of the comb-shaped reinforcing plate 16 are distributed at intervals. The intervals can avoid the protrusions or grooves on the side of the casting, so that the end face of the comb teeth 18 can accurately fit with the flat area on the side of the casting. At the same time, the edge of the base plate 17 can be adapted to the chamfer of the casting to avoid excessive local force and scratch the surface of the casting. It also enhances the clamping friction and prevents the casting from sliding laterally.

[0036] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

[0038] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A large casting hoisting device, characterized in that, include: A hanging plate (1) is provided with connecting plates (2) at both ends of the hanging plate (1). A drive plate (3) is provided at the lower end of the connecting plate (2). The two sets of drive plates (3) are arranged in a cross configuration. A shaft (4) is rotatably installed at the cross position of one set of drive plates (3). The shaft (4) extends along the length direction of the drive plate (3). A through hole (5) adapted to the shaft (4) is opened at the cross position of the other set of drive plates (3). The shaft (4) is movably sleeved on the shaft (4) through the through hole (5). The two sets of drive plates (3) can slide relative to each other along the axial direction of the shaft (4), thereby forming an openable and adjustable X-shaped scissor structure. Each set of drive plates (3) has a clamping plate (6) integrally formed at the lower end, and the two sets of clamping plates (6) are arranged opposite to each other to form a lateral clamping structure for large castings; The outer wall of the clamp (6) is provided with a positioning and lifting unit (7).

2. The large casting hoisting device according to claim 1, characterized in that, The positioning and lifting unit (7) includes a turntable (71) and a positioning baffle (72). The turntable (71) is mounted on the outer wall of the clamping plate (6) via a rotary connection structure. Limiting sliders (711) are symmetrically provided on the opposite side walls of the turntable (71). The positioning baffle (72) has an L-shaped structure, including a longitudinal section (721) for cooperating with the turntable (71) and a transverse section (722) for supporting the bottom of the casting. A fitting guide hole (723) is provided on the longitudinal section (721). Limiting holes (724) are provided on the two opposite walls of the fitting guide hole (723). The limiting holes (724) are matched with the limiting sliders (711). The positioning baffle (72) is sleeved on the outside of the turntable (71) through the fitting guide hole (723). The upper wall of the turntable (71) is provided with an adjustment unit (8) for driving the positioning baffle (72) to rise and fall along the turntable (71), thereby adjusting the fitting height between the transverse section (722) and the bottom of the casting to adapt to large castings of different thicknesses.

3. The large casting hoisting device according to claim 2, characterized in that, The adjustment unit (8) is a screw (9), the lower end of which is mounted on the upper wall of the turntable (71) via a bearing, and the axial direction of the screw (9) is consistent with the axial direction of the turntable (71); The upper wall of the longitudinal section (721) of the positioning baffle (72) is provided with a screw hole (10), and the screw (9) is threadedly and movably disposed in the screw hole (10); The upper end of the screw (9) is provided with a rotating handle (11), and the rotating handle (11) is provided with anti-slip texture.

4. The large casting hoisting device according to claim 2, characterized in that, The adjustment unit (8) is a hydraulic rod (12), which is fixed on the turntable (71). The movable end of the hydraulic rod (12) is fixed on the upper wall of the longitudinal section (721) of the positioning baffle (72).

5. The large casting hoisting device according to claim 2, characterized in that, The positioning baffle (72) has a buffer layer (13) on the side facing the casting on the transverse section (722), and the buffer layer (13) is made of polyurethane material.

6. The large casting hoisting device according to claim 1, characterized in that, The top of the hanging plate (1) is provided with a driving unit (14) and is located at the center line between the two sets of first connecting plates (2). The driving end of the driving unit (14) is movably inserted through the top plate and fixed on the shaft (4). The drive unit (14) is an electric push rod.

7. The large casting hoisting device according to claim 1, characterized in that, The upper wall of the hanging plate (1) is provided with a hanging ring (15).

8. The large casting hoisting device according to claim 1, characterized in that, The inner wall of the clamping plate (6) is provided with a comb-shaped reinforcing plate (16), which includes a rectangular base plate (17) that is completely attached to the inner wall of the clamping plate (6) and multiple sets of comb teeth (18) facing one end face of the casting. Multiple sets of comb teeth (18) are evenly spaced along the length of the substrate (17).

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