Protective device and clamp for horizontal rolling

Abstract

The protection device is connected to a clamp leg, is used for supporting the horizontal roll and comprises a buffering body and a connecting assembly, the buffering body is arranged opposite to the horizontal roll and forms an abutting portion, the abutting portion is elastic and can abut against the arc surface of the horizontal roll in a matched mode, and the connecting assembly is used for connecting the buffering body with the arc surface of the horizontal roll. The connecting assembly comprises a sliding part and at least one elastic part, the sliding part is connected to the buffering body and connected with the clamp leg in a sliding mode, and the elastic part is arranged between the sliding part and the clamp leg, connected with the sliding part and the clamp leg and used for generating elastic restoring force for pushing the sliding part and the buffering body to automatically reset after sliding relative to the clamp leg. The utility model can effectively solve the problem that the clamp leg is easy to scratch the horizontal coil because the clamp leg is in direct rigid contact with the steel coil because no protective equipment is arranged between the inner ring of the horizontal coil and the clamp leg.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting slings, in particular to a protective device and a clamp for horizontal winding. Background Art

[0002] Horizontal coil sling is a lifting tool mainly used for lifting horizontal coiled objects.

[0003] For example, the Chinese utility model patent with application number CN201721132978.9 is named: A new type of electric rotary horizontal winding clamp, including a lifting ear, a clamping motor, a reducer, a beam body, a slider, a clamp leg, a gear shaft, a rack, a rotating motor, a hanging shaft, a driving gear, a driven gear and a connecting frame, the lower end of the lifting ear is connected to the connecting frame through a hanging shaft; the beam body is arranged at the lower end of the connecting frame; the slider is located inside the beam body, and a clamp leg is provided at the end position of the slider, and a clamp foot extending inward is provided at the lower end of the clamp leg; the output end of the clamping motor is connected to the input end of the reducer through a chain drive; the gear shaft is arranged on the output shaft of the reducer, and the rack on the slider is driven to move horizontally through the gear shaft; the driving gear is arranged at the output end of the rotating motor; the driven gear is connected to the hanging shaft through a bearing; the driving gear and the driven gear are engaged to realize the transmission of rotational power and deceleration. This device has the advantage of preventing overload from damaging the motor, overload from damaging the clamp and clamping the horizontal roll, but the rigid contact between the inner ring of the horizontal roll and the clamp legs can easily cause scratches on the horizontal roll.

[0004] Therefore, there is an urgent need for a protective device and a clamp for horizontal coils to solve the problem in the prior art that the clamp legs are in direct rigid contact with the steel coil due to the lack of protective equipment between the inner ring of the horizontal coil and the clamp legs, which makes it easy for the clamp legs to scratch the horizontal coil. Utility Model Content

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and to propose a protective device and a clamp for horizontal coils, so as to solve the technical problem in the prior art that the clamp legs are in direct rigid contact with the steel coil due to the lack of protective equipment between the inner ring of the horizontal coil and the clamp legs, thereby causing the clamp legs to easily cause scratches on the horizontal coil.

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

[0007] In a first aspect, the utility model provides a protective device connected to a clamp leg for supporting a horizontal roll, comprising:

[0008] a buffer body, disposed relative to the horizontal roll and formed with an abutment portion, the abutment portion being elastic and capable of cooperating and abutting against the arc surface of the horizontal roll; and

[0009] The connecting assembly includes a sliding member and at least one elastic member. The sliding member is connected to the buffer body and is slidably connected to the pliers leg. The elastic member is arranged between the sliding member and the pliers leg and is respectively connected to the sliding member and the pliers leg to generate an elastic restoring force that pushes the sliding member and the buffer body to automatically reset after sliding relative to the pliers leg.

[0010] In some embodiments, the pliers leg is provided with a sliding groove, the sliding member includes a sliding block and at least one limiting portion, one end of the sliding block is connected to the buffer body, and the other end is slidably inserted into the sliding groove, and the limiting portion is arranged at the open end of the sliding groove to limit the sliding block from sliding out along the opening of the sliding groove.

[0011] In some embodiments, there are two limiting parts in the sliding member, and the two limiting parts are respectively arranged on both sides of the sliding block. Guide grooves are also provided on the opposite sides of the sliding groove. The limiting part includes a guide block, and the guide block is arranged in a one-to-one correspondence with the guide groove. One end of the guide block is connected to the sliding block, and the other end is slidably embedded in the guide groove.

[0012] In some embodiments, the guide groove passes through the surface of the pliers leg, and the pliers leg is further provided with at least two threaded holes, and the two threaded holes are arranged on both sides of the guide groove. The limiting portion also includes a baffle and a screw, and the baffle spans the opening of the guide groove and has a connecting hole relative to the threaded hole. The threaded section of the screw passes through the connecting hole and is threadedly connected to the threaded hole, and the large diameter section of the screw abuts against the baffle.

[0013] In some embodiments, the connecting hole is a 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 threaded hole relative to the small diameter section, and the large diameter section of the screw abuts against the bottom inner wall of the large diameter section of the connecting hole.

[0014] In some embodiments, at least one first groove is formed on the bottom inner wall of the slide groove, and the sliding block is formed with a second groove relative to the first groove. The elastic member includes a spring, one end of the spring abuts against the bottom inner wall of the first groove, and the other end abuts against the bottom inner wall of the first groove.

[0015] In some embodiments, at least one slot is further provided on the bottom inner wall of the slide groove, and the elastic member further includes a guide rod, one end of the guide rod is connected to the sliding block, and the other end is slidably inserted into the slot.

[0016] In some embodiments, the protective device further includes a plurality of anti-slip pads, which are evenly distributed along the arc surface of the abutting portion and are all connected to the buffer body.

[0017] In some embodiments, the cross-section of the anti-slip pad is hemispherical, and the cross-sectional area of the anti-slip pad gradually decreases in a direction approaching the horizontal roll.

[0018] In the second aspect, the utility model also provides a horizontal rolling clamp, comprising a main frame, a clamp body, a first driving member, two clamp legs, a second driving member, and two protective devices as described above, wherein the main frame is used to connect to a crown crane, and the clamp body is arranged below the main frame, and the first driving member has a fixed end and a rotating end, the fixed end of the first driving member is connected to the main frame, and the rotating end is connected to the clamp body, and is used to drive the clamp body to rotate relative to the main frame around its rotation axis, the two clamp legs are respectively hinged to the clamp body, and the second driving member is connected to the two clamp legs and the clamp body, and is used to drive the two clamp legs to rotate closer to or away from each other to clamp or release the material.

[0019] Compared with the prior art, the beneficial effects of the protective device provided by the present invention include: the buffer body is arranged relative to the inner ring of the horizontal coil, and is formed with an elastic abutment portion that can cooperate with the arc surface of the horizontal coil, the sliding member is connected to the buffer body and can slide relative to the clamp leg, and at least one elastic member is arranged between the sliding member and the clamp leg, which is used to generate an elastic restoring force that pushes the sliding member and the buffer body to automatically reset after sliding relative to the clamp leg. Compared with the prior art, by arranging an elastic abutment portion on the clamp leg relative to the horizontal coil, the abutment portion contacts the horizontal coil, avoiding rigid contact between the clamp leg and the horizontal coil. At the same time, the sliding member and the at least one elastic member can not only provide partial buffering force for the buffer member, but also push the buffer member to automatically reset after sliding. It is convenient to use and has a simple structure. It can solve the technical problem in the prior art that the clamp leg is easily scratched by the horizontal coil due to the lack of a protective device between the inner ring of the horizontal coil and the clamp leg, which causes the clamp leg to directly and rigidly contact with the steel coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a protective device and a horizontal rolling clamp provided by an embodiment of the utility model;

[0021] Figure 2 It is along Figure 1 A magnified schematic diagram of point A in the middle;

[0022] Figure 3 This is a schematic structural diagram of a protective device provided by an embodiment of the present utility model;

[0023] Figure 4 This is a structural diagram of a protective device provided by an embodiment of the present utility model from another perspective;

[0024] Figure 5 It is a schematic cross-sectional view of a protective device provided by an embodiment of the present utility model.

[0025] Description of reference numerals:

[0026] Clamp leg 1;

[0027] Buffer body 2;

[0028] abutment part 21;

[0029] Connect Component 3

[0030] Sliding member 31;

[0031] Slider 311;

[0032] a limiting portion 312;

[0033] Guide block 3121;

[0034] baffle 3122;

[0035] Screw 3123;

[0036] elastic member 32;

[0037] Spring 321;

[0038] Guide rod 322;

[0039] Anti-slip mat 4;

[0040] Main frame 5;

[0041] Clamp body 6;

[0042] a first driving member 7;

[0043] Second driving member 8. 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 that the pliers leg 1 is in direct rigid contact with the horizontal roll due to the lack of protective equipment between the inner ring of the horizontal roll and the pliers leg 1, which makes the horizontal roll easily scratched by the pliers leg 1, the utility model provides a protective device and a clamp for the horizontal roll, which can achieve this by arranging an elastic abutment 21 on the pliers leg 1 relative to the horizontal roll, so that the abutment 21 is in contact with the horizontal roll, thereby avoiding rigid contact between the pliers leg 1 and the horizontal roll. At the same time, the sliding member 31 and at least one elastic member 32 can not only provide partial buffering force for the buffer member, but also push the buffer member to automatically reset after sliding, which is convenient to use and has a simple structure.

[0046] It should be noted that the protective device and the horizontal coiling clamp described in the present invention are used for but not limited to the technical field of lifting slings, etc. For the sake of convenience, in the present invention, only the protective device and the horizontal coiling clamp are used in the technical field of lifting slings as an example for explanation. The principles of the protective device and the horizontal coiling clamp used in other types of equipment are essentially the same as those used in the technical field of lifting slings, and will not be described in detail here.

[0047] See also Figures 2 to 5 , Figure 1 This is a structural schematic diagram of a protective device and a clamp for horizontal rolls in an embodiment of the utility model. The protective device is connected to the clamp leg 1 for supporting the horizontal roll, and includes: a buffer body 2 and a connecting assembly 3. The buffer body 2 is arranged relative to the horizontal roll and is formed with an abutment 21. The abutment 21 is elastic and can cooperate with the arc surface of the horizontal roll to abut. The connecting assembly 3 includes a sliding member 31 and at least one elastic member 32. The sliding member 31 is connected to the buffer body 2 and is slidably connected to the clamp leg 1. The elastic member 32 is arranged between the sliding member 31 and the clamp leg 1 and is respectively connected to the sliding member 31 and the clamp leg 1, and is used to generate an elastic restoring force that pushes the sliding member 31 and the buffer body 2 to automatically reset after sliding relative to the clamp leg 1.

[0048] In this device, the buffer body 2 is arranged relative to the inner circle of the horizontal roll, and is formed with an elastic abutment portion 21 that can cooperate with the arc surface of the horizontal roll. The sliding member 31 is connected to the buffer body 2 and can slide relative to the pliers leg 1. At least one elastic member 32 is arranged between the sliding member 31 and the pliers leg 1, and is used to generate an elastic restoring force that pushes the sliding member 31 and the buffer body 2 to automatically reset after sliding relative to the pliers leg 1.

[0049] Compared with the prior art, an elastic abutment 21 is provided on the pliers leg 1 relative to the horizontal roll, so that the abutment 21 contacts the horizontal roll, thereby avoiding rigid contact between the pliers leg 1 and the horizontal roll. At the same time, the sliding member 31 and at least one elastic member 32 can not only provide partial buffering force for the buffer member, but also push the buffer member to automatically reset after sliding. It is convenient to use and has a simple structure. It can solve the technical problem in the prior art that the pliers leg 1 is in direct rigid contact with the horizontal roll due to the lack of protective equipment between the inner ring of the horizontal roll and the pliers leg 1, thereby causing the pliers leg 1 to easily cause scratches on the horizontal roll.

[0050] Furthermore, the buffer body 2 here includes a connecting portion and an abutting portion 21. The connecting portion of the buffer body 2 is used to connect with the sliding member 31, and the abutting portion 21 of the buffer body 2 is used to contact the horizontal roll to play a buffering and protective role. The material of the buffer body 2 is a common and easy-to-procure device on the market, which belongs to a conventional setting known to technical personnel in this field and will not be elaborated here.

[0051] In this embodiment, Figures 2 to 5As shown, the sliding member 31 includes a sliding block 311 and at least one limiting portion 312 , and the elastic member 32 includes a spring 321 and a guide rod 322 .

[0052] Among them, the pliers leg 1 is provided with a slide groove, one end of the sliding block 311 is connected to the buffer body 2, and the other end is slidably inserted into the slide groove, and the limiting part 312 is provided at the open end of the slide groove to limit the sliding block 311 from sliding out along the opening of the slide groove.

[0053] The sliding connection between the buffer body 2 and the pliers leg 1 is achieved by the cooperation between the sliding block 311 and the sliding groove.

[0054] Furthermore, the limiting portion 312 is provided at the open end of the slide groove, and the sliding block 311 is placed to slide out from the open end of the slide groove under the elastic restoring force of the elastic member 32, which can improve the stability of the device operation.

[0055] In one embodiment, see Figures 2 to 5 There are two limiting parts 312 in the sliding member 31, and the two limiting parts 312 are respectively arranged on both sides of the sliding block 311. Guide grooves are also opened on the opposite sides of the sliding groove. The limiting part 312 includes a guide block 3121. The guide block 3121 is arranged in a one-to-one correspondence with the guide groove. One end of the guide block 3121 is connected to the sliding block 311, and the other end is slidably embedded in the guide groove.

[0056] The sliding stroke of the sliding block 311 can be limited by the sliding fit between the guide groove and the guide block 3121 .

[0057] In one embodiment, see Figure 5 The guide groove passes through the surface of the pliers leg 1, and the pliers leg 1 is also provided with at least two threaded holes, which are arranged on both sides of the guide groove. The limiting portion 312 also includes a baffle 3122 and a screw 3123. The baffle 3122 spans the opening of the guide groove and is provided with a connecting hole relative to the threaded hole. The threaded section of the screw 3123 passes through the connecting hole and is threadedly connected to the threaded hole. The large diameter section of the screw 3123 abuts against the baffle 3122.

[0058] Specifically, the guide groove in this device passes through the surface of the pliers leg 1, and a detachably connected baffle 3122 is provided at the opening of the guide groove to limit its sliding out, thereby facilitating regular replacement and maintenance of the elastic member 32, and avoiding the abnormality of the elastic member 32 affecting normal production and use.

[0059] Furthermore, the baffle 3122 can be detachably connected to the pliers leg 1 by means of a fitting snap connection or an elastic snap connection, and is not limited to a threaded connection, which will not be elaborated here.

[0060] As a preferred embodiment, the connecting hole is a 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 threaded hole relative to the small diameter section, and the large diameter section of the screw 3123 abuts against the bottom inner wall of the large diameter section of the connecting hole.

[0061] By providing the countersunk hole, the large diameter section of the screw 3123 is prevented from protruding from the top plane of the baffle 3122, and the screw 3123 is prevented from contacting the horizontal roll and causing scratches.

[0062] In this embodiment, Figure 5 As shown, at least one first groove is formed on the bottom inner wall of the slide slot, and the sliding block 311 forms a second groove opposite to the first groove. One end of the spring 321 abuts against the bottom inner wall of the first groove, and the other end abuts against the bottom inner wall of the first groove.

[0063] Both ends of the spring 321 are respectively embedded in the first groove and the second groove, so as to protect the spring 321 and prevent the spring 321 from failing due to excessive deformation.

[0064] Furthermore, the spring 321 here can also be replaced by a spring or an elastic block. The spring 321, spring and elastic block 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.

[0065] In one embodiment, see Figure 5 The bottom inner wall of the slide groove is also provided with at least one slot, one end of the guide rod 322 is connected to the sliding block 311, and the other end is slidably inserted into the slot.

[0066] The cooperation between the guide rod 322 and the slot is used to guide the sliding of the sliding block 311 relative to the sliding groove and improve the relative sliding stability.

[0067] In this embodiment, Figures 2 to 4 As shown, the device further includes a plurality of anti-slip pads 4 , which are evenly distributed along the arc surface of the abutting portion 21 and are all connected to the buffer body 2 .

[0068] By providing the anti-slip pad 4, relative sliding between the buffer body 2 and the horizontal roll can be avoided, thereby improving safety.

[0069] In one embodiment, the cross section of the anti-slip pad 4 is hemispherical, and the cross section area of the anti-slip pad 4 gradually decreases in the direction approaching the horizontal roll.

[0070] The anti-slip pad 4 with a gradually decreasing trend can increase the contact area between the anti-slip pad 4 and the horizontal roll, thereby improving the stability and safety of the device.

[0071] like Figure 1As shown, the utility model also provides a horizontal rolling clamp, including a main frame 5, a clamp body 6, a first driving member 7, two clamp legs 1, a second driving member 8, and two protective devices. The main frame 5 is used to connect the overhead crane, and the clamp body 6 is arranged below the main frame 5. The first driving member 7 has a fixed end and a rotating end. The fixed end of the first driving member 7 is connected to the main frame 5, and the rotating end is connected to the clamp body 6, and is used to drive the clamp body 6 to rotate relative to the main frame 5 around its rotation axis. The two clamp legs 1 are respectively hinged to the clamp body 6. The second driving member 8 is connected to the two clamp legs 1 and the clamp body 6, and is used to drive the two clamp legs 1 to rotate closer to or away from each other to clamp or release the material.

[0072] Driven by the first driving member 7, the clamp body 6, the clamp legs 1 and the horizontal roll can rotate within a preset angle relative to the overhead travelling crane and the main frame 5. Driven by the second driving member 8, the two clamp legs 1 can rotate relative to the clamp body 6 to clamp the horizontal roll. This is a conventional arrangement well known to those skilled in the art and will not be described in detail here.

[0073] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail:

[0074] The buffer body 2 is arranged relative to the inner ring of the horizontal coil and is formed with an elastic abutment portion 21 that can cooperate with the arc surface of the horizontal coil. The sliding member 31 is connected to the buffer body 2 and can slide relative to the plier leg 1. At least one elastic member 32 is arranged between the sliding member 31 and the plier leg 1 to generate an elastic restoring force that pushes the sliding member 31 and the buffer body 2 to automatically reset after sliding relative to the plier leg 1. Compared with the prior art, by setting an elastic abutment portion 21 on the plier leg 1 relative to the horizontal coil, the abutment portion 21 is in contact with the horizontal coil, avoiding rigid contact between the plier leg 1 and the horizontal coil. At the same time, the sliding member 31 and the at least one elastic member 32 can not only provide partial buffering force for the buffer, but also push the buffer to automatically reset after sliding, which is convenient to use and has a simple structure.

[0075] The specific working process of the present utility model is as follows: first, the main frame 5 is connected to the overhead crane, and the overhead crane is controlled to move to the top of the horizontal roll; then, the clamp is lifted to an appropriate height (preferably slightly higher than the height of the suspended horizontal roll); then, the clamp is lowered until the two clamp legs 1 are aligned with the inner hole of the horizontal roll; the second driving member 8 is driven to drive the two clamp legs 1 to rotate closer to each other, so that the clamp legs 1 are in contact with the horizontal roll; finally, the horizontal roll pushes the buffer body 2, the sliding block 311 and the guide rod 322 to slide relative to the clamp leg 1, forming a buffer and anti-skid function for the horizontal roll, and driving the overhead crane to lift and clamp the horizontal roll to be lifted.

[0076] Furthermore, when the spring 321 needs to be replaced, the user usually disassembles the baffle 3122 so that the sliding block 311 and the guide block 3121 can be taken out from the slide groove, and the spring 321 can be easily replaced.

[0077] The above structure of the device can solve the technical problem in the prior art that the clamp leg 1 is in direct rigid contact with the steel coil due to the lack of protective equipment between the inner ring of the horizontal coil and the clamp leg 1, which makes the clamp leg 1 easily scratch the horizontal coil.

[0078] 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 protective device connected to the clamp legs for supporting horizontal rolls, characterized in that: include: A buffer body is arranged relative to the horizontal roll and is formed with an abutment portion, the abutment portion is elastic and can cooperate with and abut against the arc surface of the horizontal roll; as well as The connecting assembly includes a sliding member and at least one elastic member. The sliding member is connected to the buffer body and is slidably connected to the pliers leg. The elastic member is arranged between the sliding member and the pliers leg and is respectively connected to the sliding member and the pliers leg to generate an elastic restoring force that pushes the sliding member and the buffer body to automatically reset after sliding relative to the pliers leg.

2. The protective device according to claim 1, characterized in that The pliers leg is provided with a sliding groove, and the sliding member includes a sliding block and at least one limiting portion. One end of the sliding block is connected to the buffer body, and the other end is slidably inserted into the sliding groove. The limiting portion is arranged at the open end of the sliding groove to limit the sliding block from sliding out along the opening of the sliding groove.

3. The protective device according to claim 2, characterized in that: There are two limiting parts in the sliding member, and the two limiting parts are respectively arranged on both sides of the sliding block. Guide grooves are also provided on the opposite sides of the sliding groove. The limiting part includes a guide block, and the guide block is arranged in a one-to-one correspondence with the guide groove. One end of the guide block is connected to the sliding block, and the other end is slidably embedded in the guide groove.

4. The protective device according to claim 3, characterized in that: The guide groove passes through the surface of the caliper leg, and the caliper leg is also provided with at least two threaded holes, which are arranged on both sides of the guide groove. The limiting part also includes a baffle and a screw. The baffle spans the opening of the guide groove and is provided with a connecting hole relative to the threaded hole. The threaded section of the screw passes through the connecting hole and is threadedly connected to the threaded hole. The large diameter section of the screw abuts against the baffle.

5. The protective device according to claim 4, characterized in that: The connecting hole is a countersunk hole having a large diameter section and a small diameter section. The large diameter section of the countersunk hole is arranged away from the threaded hole relative to the small diameter section, and the large diameter section of the screw abuts against the bottom inner wall of the large diameter section of the connecting hole.

6. The protective device according to claim 5, characterized in that: The bottom inner wall of the slide groove is provided with at least one first groove, the sliding block is provided with a second groove relative to the first groove, and the elastic member includes a spring, one end of the spring abuts against the bottom inner wall of the first groove, and the other end abuts against the bottom inner wall of the first groove.

7. The protective device according to claim 6, characterized in that The bottom inner wall of the sliding groove is further provided with at least one slot, and the elastic member further comprises a guide rod, one end of the guide rod is connected to the sliding block, and the other end is slidably inserted into the slot.

8. The protective device according to claim 7, characterized in that: It also includes a plurality of anti-slip pads, which are evenly distributed along the arc surface of the abutting portion and are all connected to the buffer body.

9. The protective device according to claim 8, characterized in that The cross section of the anti-slip pad is hemispherical, and the cross section area of the anti-slip pad gradually decreases in a direction approaching the horizontal roll.

10. A horizontal coiling clamp, characterized in that: It includes a main frame, a clamp body, a first drive member, two clamp legs, a second drive member, and two protective devices according to any one of claims 1 to 9, the main frame is used to connect the overhead crane, the clamp body is arranged below the main frame, the first drive member has a fixed end and a rotating end, the fixed end of the first drive member is connected to the main frame, and the rotating end is connected to the clamp body, and is used to drive the clamp body to rotate relative to the main frame around its rotation axis, the two clamp legs are respectively hinged to the clamp body, and the second drive member is connected to the two clamp legs and the clamp body, and is used to drive the two clamp legs to rotate closer to or away from each other to clamp or release materials.

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