Clamp for hoisting steel coil

Abstract

The clamp comprises a clamp body, two clamp legs and two protection assemblies, the two clamp legs are hinged to the clamp body respectively and can rotate close to or away from each other so as to clamp or release materials, each protection assembly comprises a protection block piece, a sliding piece and a clamping piece, and each protection block piece is connected with the corresponding clamping piece. The two protection block pieces are both arranged between the two clamp legs and arranged opposite to the steel coil, the sliding pieces are connected to the clamp legs in a sliding mode, the clamping pieces are connected to the sliding pieces, and clamping gaps used for clamping the protection block pieces are formed, so that the protection block pieces are detachably connected to the clamping gaps. According to the utility model, the problem of inconvenience in use caused by the fact that the protective block needs to be overhauled, disassembled and replaced regularly to guarantee the normal use of the clamp after being used can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a clamp for steel coil cranes. Background Art

[0002] In order to reduce the risk of the inner side of the clamp arm scratching the edge of the steel coil, a clamp with protective function was developed.

[0003] For example, the Chinese utility model patent application number is CN202022300411.6, and its name is: A steel coil lifting clamp structure, which includes a clamp arm, a clamp foot, a position adjustment mechanism and a guard block. The bottom end of the clamp arm is provided with a clamp foot, which extends into the center hole of the steel coil. The clamp arm is provided with a guard block that is tightly fitted with the end face of the steel coil. The guard block is formed by stacking multiple curved hard rubber plates. The guard block is connected to the position adjustment mechanism to adjust the position of the guard block in the clamp arm. The device reduces the friction between the guard block and the edge of the steel coil, thereby extending the service life of the guard block and preventing damage to the edge of the steel coil caused by friction. It is suitable for clamping steel coils of different sizes, making the clamping effect better and more versatile. However, the guard block is greatly worn during use and needs to be regularly inspected and replaced to ensure the normal use of the device, but it is inconvenient to disassemble and replace.

[0004] Therefore, there is an urgent need for a steel coil crane clamp to solve the problem in the prior art that the guard block needs to be regularly inspected, disassembled and replaced after use to ensure the normal use of the clamp, which leads to inconvenience in use. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a clamp for steel coil crane to solve the technical problem in the prior art that the guard block needs to be regularly inspected, disassembled and replaced after use to ensure the normal use of the clamp, which leads to inconvenience in use.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a clamp for steel coil hanging, comprising:

[0008] Clamp body;

[0009] Two clamp legs, each of which is hinged to the clamp body and can be rotated toward or away from each other to clamp or release the material; and

[0010] Two protective components, the protective components include a protective block, a sliding member and a clamping member. The two protective block members are arranged between the two clamp legs and are arranged relative to the steel coil. The sliding member is slidably connected to the clamp legs, and the clamping member is connected to the sliding member, and a clamping gap is formed for clamping the protective block member, so that the protective block member can be detachably connected to the clamping gap.

[0011] In some embodiments, the pliers leg is provided with a first sliding groove along its length direction, and the two first sliding grooves respectively pass through the opposite sides of the two pliers legs. The sliding member includes a sliding block, one end of the sliding block is slidably embedded in the first sliding groove, and the other end is placed outside the pliers leg and connected to the clamping member.

[0012] In some embodiments, the sliding block is provided with a clamping groove, and the clamping member includes two elastic clamping parts, which are arranged opposite to each other and respectively connected to the two opposite inner walls of the clamping groove, and the two elastic clamping parts and the bottom of the clamping groove together form the clamping gap.

[0013] In some embodiments, the elastic clamping portion includes a clamping plate and at least one spring, the clamping plate is spaced apart from the inner side wall of the clamping groove, the spring is arranged between the clamping plate and the inner side wall of the clamping groove, and is respectively connected to the clamping plate and the inner side wall of the clamping groove, for generating an elastic restoring force that drives the clamping plate to automatically reset after relative sliding.

[0014] In some embodiments, at least one guide hole is respectively opened on the two opposite inner walls of the clamping groove, and the elastic clamping part also includes at least one guide rod, which is arranged in a one-to-one correspondence with the guide hole, and one end of the guide rod is connected to the clamping plate, and the other end is slidably inserted into the guide hole.

[0015] In some embodiments, the protective block member includes a connecting block and multiple hard rubber plates. The connecting block is inserted into the clamping gap and is tightly pressed against the two clamping plates. The connecting block is provided with an installation groove relative to the steel coil. The multiple hard rubber plates are stacked in sequence and are all clamped in the installation groove.

[0016] In some embodiments, the connecting block is further provided with at least one countersunk hole and has a large diameter section and a small diameter section. The large diameter section of the countersunk hole is arranged away from the mounting groove relative to the small diameter section, and the small diameter section of the countersunk hole is connected to the mounting groove. The small diameter section of the countersunk hole is also provided with an internal thread. The guard block also includes at least one fastening connection part, the threaded end of the fastening connection part is threadedly connected to the small diameter section of the countersunk hole, and is tightly pressed against the multiple hard rubber plates.

[0017] In some embodiments, the clamping member further includes a limit block, which is arranged perpendicular to the clamping plate and connected to the clamping plate, and the limit block abuts against the connecting block to limit the connecting block from sliding out along the opening of the clamping gap.

[0018] In some embodiments, the sliding member also includes a driving part, which has a fixed end and a movable end. The fixed end of the driving part is connected to the inner wall of the first sliding groove, and the movable end is connected to the sliding block, which is used to drive the sliding block to slide along the guide of the first sliding groove.

[0019] In some embodiments, the driving part includes a rack, a driving gear and a driving motor. The rack is arranged along the surface of the sliding block. The driving gear rotates inside the first slide groove and engages with the rack. The fixed end of the driving motor is connected to the inner wall of the first slide groove, and the output shaft is connected to the driving gear, which is used to drive the sliding block, the connecting block and multiple hard rubber plates to slide along the guide of the first slide groove.

[0020] Compared with the prior art, the advantageous effects of the steel coil hoisting clamp provided by the present invention include: the two clamp legs are respectively hinged to the clamp body, and can be respectively rotated closer to or farther away from the clamp body to clamp or release the material, the two protective members are both arranged between the two clamp legs and arranged relative to the steel coil, the clamping member is connected to the sliding member, and a clamping gap for clamping the protective block member is formed, and the sliding member can slide relative to the clamp legs, so that the protective block member can be detachably connected to the clamp legs and can slide relative to the clamp legs. Compared with the prior art, by providing the sliding member and the clamping member, the protective block member can slide relative to the clamp legs and can be detachably connected to the clamping member at the same time, and by connecting or removing the protective block member to the clamping gap, installation and disassembly can be achieved quickly, which is convenient for use and operation, and can solve the technical problem in the prior art that the protective block needs to be regularly inspected, disassembled and replaced after use to ensure the normal use of the clamp, thereby causing inconvenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a steel coil lifting clamp provided by an embodiment of the present utility model;

[0022] Figure 2 It is along Figure 1 A magnified schematic diagram of point A in the middle;

[0023] Figure 3 It is a schematic cross-sectional view of the connection between the pliers legs and the protective assembly provided by an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] Clamp body 1;

[0026] Clamp leg 2;

[0027] Protection component 3;

[0028] Guard piece 31;

[0029] Connecting block 311;

[0030] Hard rubber sheet 312;

[0031] Fastening connection portion 313;

[0032] Slider 32;

[0033] Slider 321;

[0034] driving unit 322;

[0035] Rack 3221;

[0036] Drive gear 3222;

[0037] Drive motor 3223;

[0038] Clamping member 33;

[0039] elastic clamping portion 331;

[0040] Clamping plate 3311;

[0041] Spring 3312;

[0042] Guide rod 3313;

[0043] Limit block 332. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] In order to solve the technical problem in the prior art that the guard block needs to be regularly inspected, disassembled and replaced after use to ensure the normal use of the clamp, which causes inconvenience in use, the utility model provides a clamp for steel coil crane, which can realize that the guard block part 31 can slide relative to the clamp leg 2 and can be detachably connected to the clamping part 33. By connecting or removing the guard block part 31 with the clamping gap, it can be quickly installed and disassembled, which is convenient to use and operate.

[0046] It should be noted that the steel coil crane clamp of the present invention is used for but not limited to the technical field of lifting equipment, etc. For the sake of convenience, in the present invention, only the application of the steel coil crane clamp in the technical field of lifting equipment is used as an example for explanation, and the principle of applying the steel coil crane clamp to other types of equipment is essentially the same as the principle applied to the technical field of lifting equipment, which will not be repeated here.

[0047] See also Figures 1 to 3 , Figure 1 This is a structural schematic diagram of a clamp for a steel coil crane in one embodiment of the present invention. The clamp for a steel coil crane includes a clamp body 1, two clamp legs 2 and two protective components 3. The two clamp legs 2 are respectively hinged to the clamp body 1, and the two clamp legs 2 can rotate towards or away from each other to clamp or release materials. The protective component 3 includes a guard block 31, a sliding member 32 and a clamping member 33. The two guard blocks 31 are both arranged between the two clamp legs 2 and are arranged relative to the steel coil. The sliding member 32 is slidably connected to the clamp legs 2, and the clamping member 33 is connected to the sliding member 32, and a clamping gap is formed for clamping the guard block 31, so that the guard block 31 can be detachably connected to the clamping gap.

[0048] In this device, the two pliers legs 2 are respectively hinged to the pliers body 1, and can be rotated relatively close to or away from the pliers body 1 to clamp or release the material. The two protective members are arranged between the two pliers legs 2 and are arranged relative to the steel coil. The clamping member 33 is connected to the sliding member 32 and forms a clamping gap for clamping the protective block member 31. The sliding member 32 can slide relative to the pliers leg 2, so that the protective block member 31 can be detachably connected to the pliers leg 2 and can slide relative to the pliers leg 2.

[0049] Compared with the prior art, by providing a sliding member 32 and a clamping member 33, the guard block member 31 can slide relative to the pliers leg 2 and can be detachably connected to the clamping member 33. By connecting or removing the guard block member 31 with the clamping gap, installation and disassembly can be quickly achieved, which is convenient for use and operation. It can solve the technical problem in the prior art that the guard block needs to be regularly inspected, disassembled and replaced after use to ensure the normal use of the pliers, thereby causing inconvenience in use.

[0050] Furthermore, the two clamp legs 2 in this device are arranged opposite to each other and are both "L"-shaped. The clamp should also include a driving member, which is connected to the clamp body 1 and the two clamp legs 2, and is used to drive the two clamp legs 2 to rotate relative to the clamp body 1 to achieve the clamping and release of the steel coil. This is a conventional setting known to technical personnel in this field and will not be elaborated on.

[0051] In this embodiment, Figure 2 、 Figure 3As shown, the protective block member 31 includes a connecting block 311 and a plurality of hard rubber plates 312, at least one fastening connection part 313, the sliding member 32 includes a sliding block 321, a driving part 322, the driving part 322 includes a rack 3221, a driving gear 3222 and a driving motor 3223, the clamping member 33 includes two elastic clamping parts 331, a limit block 332, the elastic clamping part 331 includes a clamping plate 3311 and at least one spring 3312, and at least one guide rod 3313.

[0052] Among them, the pliers leg 2 is provided with a first sliding groove along its length direction, and the two first sliding grooves respectively pass through the opposite sides of the two pliers legs 2. One end of the sliding block 321 is slidably embedded in the first sliding groove, and the other end is placed outside the pliers leg 2 and connected to the clamping member 33.

[0053] By sliding the sliding block 321 relative to the pliers leg 2 , a sliding connection between the clamping member 33 and the block member 31 relative to the pliers leg 2 can be achieved, and the sliding block 321 plays the role of sliding and connecting.

[0054] In one embodiment, see Figure 2 、 Figure 3 The sliding block 321 is provided with a clamping groove, and the two elastic clamping parts 331 are arranged opposite to each other and are respectively connected to the two opposite inner walls of the clamping groove, and the two elastic clamping parts 331 and the bottom of the clamping groove are surrounded to form a clamping gap.

[0055] The elastic force generated by the two elastic clamping parts 331 can clamp the protective block member 31 in the clamping gap, making it easy to remove and install the protective block member 31 and convenient to use.

[0056] In one embodiment, see Figure 2 、 Figure 3 The clamping plate 3311 is spaced apart from the inner wall of the clamping groove, and the spring 3312 is arranged between the clamping plate 3311 and the inner wall of the clamping groove, and is respectively connected to the clamping plate 3311 and the inner wall of the clamping groove, for generating an elastic restoring force to drive the clamping plate 3311 to automatically reset after relative sliding.

[0057] The elastic restoring force generated by the spring 3312 can drive the movement of the clamping plate 3311 to clamp the protective block 31 .

[0058] Furthermore, the spring 3312 here can also be replaced by an elastic block and a spring piece. The spring 3312, the elastic block and the spring piece here are all common and easy-to-purchase equipment on the market. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0059] In one embodiment, see Figure 3At least one guide hole is respectively opened on the two opposite inner side walls of the clamping groove, and the guide rod 3313 is arranged in a one-to-one correspondence with the guide hole, and one end of the guide rod 3313 is connected to the clamping plate 3311, and the other end is slidably inserted into the guide hole.

[0060] The guide rod 3313 guides and supports the sliding of the clamping plate 3311 relative to the sliding block 321 .

[0061] Furthermore, due to the restriction of the guide rod 3313, the clamping plate 3311 cannot tilt or tilt at a small angle relative to the side wall of the clamping groove, thereby preventing the protective block 31 from accidentally falling off the clamping plate 3311 and improving the stability of the device.

[0062] In this embodiment, the connecting block 311 is inserted into the clamping gap and is tightly pressed against the two clamping plates 3311. The connecting block 311 has an installation groove relative to the steel coil, and multiple hard rubber plates 312 are stacked in sequence and are all clamped in the installation groove.

[0063] A plurality of hard rubber plates 312 are stacked in sequence and clamped in the connecting block 311 to form a whole, and are fixed in the clamping groove together with the clamping plate 3311 .

[0064] Furthermore, the hard rubber plate 312 here has a buffering effect and is a common and easily purchased device on the market. This is a conventional setting well known to those skilled in the art and will not be described in detail here.

[0065] In one embodiment, see Figure 3 The connecting block 311 is also provided with at least one countersunk hole, and has a large diameter section and a small diameter section. The large diameter section of the countersunk hole is arranged away from the mounting groove relative to the small diameter section, and the small diameter section of the countersunk hole is connected to the mounting groove. The small diameter section of the countersunk hole is also provided with an internal thread. The threaded end of the fastening connection part 313 is threadedly connected to the small diameter section of the countersunk hole and is tightly pressed against multiple hard rubber plates 312.

[0066] By providing the fastening connection portion 313 that can be threadedly connected to the connection block 311 and tightly abutted against the multiple hard rubber plates 312 , the installation stability of the multiple hard rubber plates 312 can be improved.

[0067] Furthermore, the fastening connection portion 313 here is a screw or bolt that is common and easy to purchase on the market. The screw or bolt here belongs to a conventional setting well known to those skilled in the art and will not be described in detail here.

[0068] In one embodiment, see Figure 2 、 Figure 3The limit block 332 is arranged perpendicular to the clamping plate 3311 and connected to the clamping plate 3311, and the limit block 332 abuts against the connecting block 311 to limit the connecting block 311 from sliding out along the opening of the clamping gap.

[0069] The limiting block 332 is connected to the clamping plate 3311 and abuts against the connecting block 311 , which can reduce the sliding of the connecting block 311 relative to the clamping plate 3311 and improve the installation stability of the multiple hard rubber plates 312 .

[0070] In this embodiment, the driving portion 322 has a fixed end and a movable end. The fixed end of the driving portion 322 is connected to the inner wall of the first slide groove, and the movable end is connected to the sliding block 321, for driving the sliding block 321 to slide along the guide of the first slide groove.

[0071] By providing the driving portion 322 , the sliding block 321 , the connecting block 311 and the plurality of hard rubber plates 312 can slide along the length direction of the clamp leg 2 , thereby adjusting the relative position of the guard block 31 in coordination with the steel coil.

[0072] In one embodiment, see Figure 3 The rack 3221 is arranged along the surface of the sliding block 321, the driving gear 3222 rotates and is built into the first slide groove and meshes with the rack 3221. The fixed end of the driving motor 3223 is connected to the inner wall of the first slide groove, and the output shaft is connected to the driving gear 3222, which is used to drive the sliding block 321, the connecting block 311 and the multiple hard rubber plates 312 to slide along the guide of the first slide groove.

[0073] Driven by the driving motor 3223 , the driving gear 3222 can continuously mesh with the rack 3221 , thereby driving the sliding block 321 to slide relative to the pliers leg 2 .

[0074] Furthermore, the drive motor 3223 here is a forward and reverse motor that is common and easy to purchase on the market, and has a self-locking function. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0075] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail:

[0076] The two pliers legs 2 are respectively hinged to the pliers body 1 and can be rotated relatively closer to or away from the pliers body 1 to clamp or release the material. The two guards are arranged between the two pliers legs 2 and are arranged relative to the steel coil. The clamping member 33 is connected to the sliding member 32 and forms a clamping gap for clamping the guard block 31. The sliding member 32 can slide relative to the pliers legs 2, so that the guard block 31 is detachably connected to the pliers legs 2 and can slide relative to the pliers legs 2. Compared with the prior art, by providing the sliding member 32 and the clamping member 33, the guard block 31 can slide relative to the pliers legs 2 and can be detachably connected to the clamping member 33. By connecting or removing the guard block 31 from the clamping gap, installation and disassembly can be achieved quickly, which is convenient for use and operation.

[0077] When the cam 312 is in the unlock position, the cam 313 is unlocked and the cam 314 is unlocked, and the cam 315 is unlocked, so that the cam 315 can be unlocked.

[0078] The device, through the above structure, can solve the technical problem in the prior art that the guard block needs to be regularly inspected, disassembled and replaced after use to ensure the normal use of the clamp, which causes inconvenience in use.

[0079] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A steel coil lifting clamp, characterized in that: include: clamp body; Two clamp legs, each of which is hinged to the clamp body and can be rotated toward or away from each other to clamp or release the material; and Two protective components, the protective components include a protective block, a sliding member and a clamping member. The two protective block members are arranged between the two clamp legs and are arranged relative to the steel coil. The sliding member is slidably connected to the clamp legs, and the clamping member is connected to the sliding member, and a clamping gap is formed for clamping the protective block member, so that the protective block member can be detachably connected to the clamping gap.

2. The steel coil lifting clamp according to claim 1, characterized in that: The pliers leg is provided with a first sliding groove along its length direction, and two first sliding grooves respectively pass through the opposite sides of the two pliers legs. The sliding member includes a sliding block, one end of the sliding block is slidably embedded in the first sliding groove, and the other end is placed outside the pliers leg and connected to the clamping member.

3. The steel coil lifting clamp according to claim 2, characterized in that: The sliding block is provided with a clamping groove, and the clamping member includes two elastic clamping parts, which are arranged opposite to each other and respectively connected to the two opposite inner walls of the clamping groove, and the two elastic clamping parts and the bottom of the clamping groove together form the clamping gap.

4. The steel coil lifting clamp according to claim 3, characterized in that: The elastic clamping portion includes a clamping plate and at least one spring. The clamping plate is spaced apart from the inner side wall of the clamping groove. The spring is arranged between the clamping plate and the inner side wall of the clamping groove, and is respectively connected to the clamping plate and the inner side wall of the clamping groove, for generating an elastic restoring force that drives the clamping plate to automatically reset after relative sliding.

5. The steel coil lifting clamp according to claim 4, characterized in that: The two opposite inner side walls of the clamping groove are respectively provided with at least one guide hole, and the elastic clamping part also includes at least one guide rod, which is arranged in a one-to-one correspondence with the guide hole, and one end of the guide rod is connected to the clamping plate, and the other end is slidably inserted into the guide hole.

6. The steel coil hoisting clamp according to claim 5, characterized in that: The protective block member includes a connecting block and multiple hard rubber plates. The connecting block is inserted into the clamping gap and is tightly pressed against the two clamping plates. The connecting block is provided with an installation groove relative to the steel coil. The multiple hard rubber plates are stacked in sequence and are all clamped in the installation groove.

7. The steel coil hoisting clamp according to claim 6, characterized in that: The connecting block is also provided with at least one countersunk hole and has a large diameter section and a small diameter section. The large diameter section of the countersunk hole is arranged away from the mounting groove relative to the small diameter section, and the small diameter section of the countersunk hole is connected to the mounting groove. The small diameter section of the countersunk hole is also provided with an internal thread. The guard block also includes at least one fastening connection part, the threaded end of the fastening connection part is threadedly connected to the small diameter section of the countersunk hole and is tightly pressed against the multiple hard rubber plates.

8. The steel coil hoisting clamp according to claim 7, characterized in that: The clamping member further includes a limit block, which is arranged perpendicular to the clamping plate and connected to the clamping plate, and the limit block abuts against the connecting block to limit the connecting block from sliding out along the opening of the clamping gap.

9. The steel coil hoisting clamp according to claim 8, characterized in that: The sliding member also includes a driving part, which has a fixed end and a movable end. The fixed end of the driving part is connected to the inner wall of the first sliding groove, and the movable end is connected to the sliding block, which is used to drive the sliding block to slide along the guide of the first sliding groove.

10. The steel coil hoisting clamp according to claim 9, characterized in that: The driving part includes a rack, a driving gear and a driving motor. The rack is arranged along the surface of the sliding block. The driving gear is rotatably built into the first slide groove and meshes with the rack. The fixed end of the driving motor is connected to the inner wall of the first slide groove, and the output shaft is connected to the driving gear, which is used to drive the sliding block, the connecting block and multiple hard rubber plates to slide along the guide of the first slide groove.

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