CN214456166U - Steel plate lifting clamp - Google Patents

Abstract

The application relates to a steel plate hoisting clamp, it includes the lifting beam, wire rope and the pincers body, the pincers body includes the pincers seat of U-shaped, rotate locate the second tong arm in the pincers seat, rotate the first tong arm of being connected and the pincers tongue of fixing with first tong arm with the second tong arm, be equipped with the anticreep subassembly between the first tong arm of same end and the lifting beam, the anticreep subassembly is including locating the pulley on the first tong arm, around locating stay cord on the pulley and with the equal fixed connection's of lifting beam and stay cord wind spring. When the clamp is used, every two clamp bodies are arranged on the plate body, the hanging beam is hoisted to enable the steel wire rope and the pull rope to be tensioned, and the second clamp arm presses the clamp tongue onto the plate body through the first clamp arm to enable the plate body to be clamped and fixed; if the steel plate is lifted, the stay cord is always kept tensioned under the elastic action of the coil spring, so that the two first tong arms at the same end are tensioned, the pressing effect of the tong tongues on the plate body is ensured, the steel plate is always in a clamped state, and the safety effect of the steel plate during lifting is improved.

Description

Steel plate lifting clamp

Technical Field

The application relates to the technical field of hoisting slings, in particular to a steel plate hoisting clamp.

Background

The steel plate is a flat steel plate cast by molten steel, cooled and pressed, and the area of the top surface of the steel plate is far larger than that of the side surface of the steel plate. In the steel plate carrying process, the steel plate is hoisted and transported conveniently, and a hoisting tool of the steel plate is needed.

At present, the utility model discloses a chinese utility model patent that publication number is CN205132901U discloses a semitrailer chassis assembly special lifting device, including the crossbeam assembly that the level set up, establish at the lug at crossbeam assembly top center and connect four wire rope in the crossbeam assembly four corners, four wire rope respectively are connected with a steel sheet jack-up tong. During the use, hang the lug on the driving, adjust the direction, use two steel sheet lifting tongs to install in the left side, two steel sheet lifting tongs are installed on the right side in addition, then upwards taut wire rope, and steel sheet lifting tongs utilizes lever principle, produces the clamp force by the weight of steel sheet itself and with the steel sheet chucking to this realization handling. However, if the steel wire rope is shaken in the hoisting process in the scheme, the steel wire rope is easy to loosen, the steel plate is difficult to be ensured to be always in a clamped state, and certain potential safety hazards exist.

In view of the above related technologies, the inventor thinks that there is a defect that it is difficult to ensure that the steel plate is always in a clamped state, and there is a certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to guarantee that the steel sheet is in the state of tightly pressing from both sides all the time to the security when improving the steel sheet and lifting by crane, this application provides a steel sheet lifting tongs.

The application provides a steel sheet lifting tongs adopts following technical scheme:

a steel plate lifting clamp comprises a lifting beam, wherein four steel wire ropes are arranged on the lifting beam, the four steel wire ropes are arranged at two ends of the lifting beam in pairs, one ends, away from the lifting beam, of the steel wire ropes are connected with a clamp body, the clamp body comprises a clamp seat, a clamp tongue, a first clamp arm and a second clamp arm, the clamp seat is U-shaped, a first groove is formed in one arm of the clamp seat, the first clamp arm and the second clamp arm are both rotatably arranged in the first groove, the first clamp arm is arranged on the inner side of the second clamp arm, the upper portion of the second clamp arm is connected with the steel wire ropes, a second groove is formed in the lower portion of the second clamp arm, and one end of the first clamp arm is rotatably arranged in the second groove and extends downwards to be fixedly connected with the clamp tongue; the other end of the first clamp arm extends out of the second groove, and an anti-falling assembly is arranged between the other end of the first clamp arm and the lifting beam; the anti-falling assembly comprises a pulley rotatably arranged on the first tong arm, a pull rope wound on the pulley at the same end of the first tong arm, a coil spring with the outer end fixedly connected with the pull rope, and a fixed shaft fixedly connected with the inner end of the coil spring, and the fixed shaft is fixedly connected with the lifting beam.

By adopting the technical scheme, when the clamp is used, the clamp body is pulled to clamp the plate body between the clamp seat and the clamp tongue, the four clamp bodies are located at two ends of the plate body in pairs, then the hanging beam is lifted upwards to tension the steel wire rope, the pull rope is tensioned in a state, the second clamp arm is pressed on the first clamp arm, and the first clamp arm presses the clamp tongue on the plate body to clamp and fix the plate body; if the steel wire rope is loosened due to shaking in the hoisting process, one end of the second clamp arm connected with the steel wire rope rotates outwards, the stay cord is rolled up under the elastic action of the coil spring at the moment, so that the stay cord is always kept in a tensioned state, and the stay cord bypasses the pulley on the first clamp arm at the same end, so that the stay cord forms a stable triangle between the hanging beam and the two first clamp arms at the same end, and the first clamp arms at the same end are tensioned, thereby ensuring the compression effect of the clamp tongue on the plate body, further ensuring that the steel plate is always in a clamped state, and improving the safety of the steel plate during hoisting.

Optionally, a winding box and an inner hanging ring are fixedly connected to the bottom surface of the lifting beam, the fixed shaft and the coil spring are both arranged in the winding box, a through hole for the stay cord to penetrate out is formed in the side wall of the winding box, the inner hanging ring is arranged on one side, away from the through hole, of the winding box, one end, around the pulley, of the stay cord is connected with an anti-unhooking hook, and the anti-unhooking hook is hung on the inner hanging ring.

Through adopting above-mentioned technical scheme, the spring action of wind spring makes the stay cord keep taut state, and the clearance of pincers seat and pincers tongue is less this moment, and the one end of walking around the pulley with the stay cord sets up the anticreep hook, and during the installation pincers body, only need take off the anticreep hook by interior rings to this relieves the taut effect of stay cord to two first tong arms of same end, and the installation is accomplished the back again with the anticreep hook including on rings can, have easy to assemble's effect.

Optionally, the mousing-hook include with stay cord fixed connection's gib head, locate joint spare in the gib head and fixed set up in the joint spare with torsional spring between the gib head, the one end of joint spare with the gib head is articulated, the other end with the inner wall of gib head supports tightly.

By adopting the technical scheme, when the anti-drop hook is hooked on the inner hanging ring, the clamping piece is abutted against the inner wall of the hook head under the elastic action of the torsion spring so as to form a stable closed loop, and the inner hanging ring is positioned in the closed loop, so that the condition of unhooking is effectively prevented, and the connection stability of the anti-drop hook and the inner hanging ring is improved; when the anti-unhooking is required to be taken down, the clamping piece is pressed to form an opening between the clamping piece and the hook head, and the anti-unhooking is moved to enable the anti-unhooking to be separated from the inner hanging ring from the opening position.

Optionally, a limiting groove is formed in the inner side wall of the hook head, and the clamping piece and one end, abutted to the hook head, of the clamping piece are arranged in the limiting groove.

Through adopting above-mentioned technical scheme, when the anticreep hook was hung including on rings, the joint spare was supported tight one end with the gib head and is located the spacing inslot, and the limiting displacement of spacing groove has prevented effectively that the joint spare from breaking away from the gib head to both sides incline to this ensures the closed effect of anticreep hook.

Optionally, outer rings are arranged on the bottom surface of the lifting beam and the second tong arm, and anti-disengaging hooks hung on the outer rings are arranged at two ends of the steel wire rope.

Through adopting above-mentioned technical scheme, to the handling of unidimensional steel sheet, for the gravity of abundant utilization plate body itself, make the second tong arm keep the effect that compresses tightly to first tong arm, need use the wire rope of different length, outer rings have made things convenient for wire rope's change with mousing-hook's setting, have enlarged the application scope of this application.

Optionally, an annular groove used for accommodating the pull rope is formed in the wheel surface of the pulley, the first clamp arm is fixedly connected with a volute used for shielding the pull rope, and the volute is arranged on one side, close to the inside of the first clamp arm, of the pulley.

Through adopting above-mentioned technical scheme, when the mousing-hook took off, the stay cord was not hard up state, and the pulley need readjust is easily taken off, and the spiral case that sets up restricts the stay cord in the annular, has ensured the linkage effect of stay cord and pulley effectively, has further made things convenient for the installation of the pincers body.

Optionally, the inner bottom surface of the forceps base and the bottom surface of the forceps tongue are both planes, and the bottom surface of the forceps tongue and the connecting position of the side wall of the forceps base, which is close to the opening, are in arc transition.

By adopting the technical scheme, when the clamp body is installed, the bottom surface of the plate body is arranged on the inner bottom surface of the clamp seat, when the clamp body is lifted, the steel wire rope presses the first clamp arm through the second clamp arm, the first clamp arm drives the clamp tongue to rotate, the clamp tongue rotates to the upper surface of the plate body from the arc surface of the clamp tongue, the plate body can be clamped tightly by laminating the bottom surface of the clamp tongue and the plane of the plate body, the contact area of the clamp body and the plate body is increased, the possibility of generating an indentation on the plate body is reduced, and the plate body is protected.

Optionally, the inner bottom surface of the forceps base and the bottom surface of the forceps tongue are fixedly connected with a plurality of teeth.

By adopting the technical scheme, the arranged teeth increase the surface coefficients of the inner bottom surface of the clamp seat and the bottom surface of the clamp tongue, and when the clamp body clamps the plate body, the friction force between the clamp seat and the clamp tongue as well as the plate body is increased, so that the clamping effect of the clamp body is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the clamp is used, the clamp bodies are installed at two ends of the plate body in pairs, then the hanging beam is lifted to enable the steel wire rope and the pull rope to be tensioned, the second clamp arm is pressed on the first clamp arm at the moment, and the first clamp arm presses the clamp tongue on the plate body, so that the plate body is clamped and fixed; if the steel plate is shaken in the hoisting process, the steel wire rope loosens to enable the second clamp arm to rotate outwards, the stay cord is always kept in a tensioned state under the elastic action of the coil spring, and then the two first clamp arms at the same end are tensioned, so that the pressing action of the clamp tongue on the plate body is ensured, the steel plate is always in a clamped state, and the safety of the steel plate during hoisting is improved;

2. when the clamp body is installed, the anti-drop hook is taken down from the inner hanging ring so as to relieve the tensioning effect of the pull rope on the two first clamp arms at the same end, and the anti-drop hook is hung on the inner hanging ring after the installation is finished, so that the anti-drop hook has the effect of convenience in installation;

3. the setting of outer rings and mousing-hook conveniently changes the wire rope of different length, makes this application be applicable to the handling of not unidimensional steel sheet.

Drawings

Fig. 1 is a schematic overall structure diagram of the application embodiment.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of the anti-dropping assembly in the embodiment of the application.

Description of reference numerals: 1. lifting the lifting beam; 11. lifting lugs; 12. a wire rope; 13. an inner suspension ring; 14. an outer hoisting ring; 15. a plate body; 2. a clamp body; 21. a clamp base; 211. a first groove; 212. a clamp shaft; 22. a first clamp arm; 23. a second jawarm; 231. a second groove; 24. a clamp tongue; 25. teeth; 3. an anti-drop component; 31. a pulley; 311. a ring groove; 312. a volute; 32. a coiling box; 321. perforating; 33. a fixed shaft; 34. a coil spring; 35. pulling a rope; 4. unhooking prevention; 41. a hook head; 411. a limiting groove; 42. a clamping piece; 43. a torsion spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses steel plate lifting clamp. Referring to fig. 1, the steel plate lifting clamp includes a lifting beam 1, a clamp body 2, an anti-drop assembly 3, and an anti-drop hook 4. The cross section of the lifting beam 1 is rectangular, the length direction of the lifting beam is consistent with that of the plate body 15, and the center of the top surface of the lifting beam is fixedly connected with a lifting lug 11. Four steel wire ropes 12 are arranged on the bottom surface of the lifting beam 1, and the four steel wire ropes 12 are arranged at two ends of the lifting beam 1 in pairs.

Referring to fig. 1, the caliper body 2 is disposed at an end of the wire rope 12 away from the lifting beam 1, and the caliper body 2 includes a caliper seat 21, a first caliper arm 22, a second caliper arm 23, and a caliper tongue 24. The clamp seat 21 is U-shaped, and the edge of the plate body 15 extends into the clamp seat 21 and is pressed on the inner bottom surface of the clamp seat 21. The arm of the forceps base 21 on the upper side of the plate body 15 is provided with a first groove 211, and the first groove 211 is U-shaped and is communicated with the open end of the forceps base 21. Referring to fig. 2, a clamp shaft 212 is disposed in the first groove 211, the cross section of the clamp shaft 212 is circular, and both ends of the clamp shaft are fixedly connected to the inner sidewall of the first groove 211. The first and second clamp arms 22 and 23 are rotatably disposed in the first recess 211 and rotatably connected to the clamp shaft 212, and the first clamp arm 22 is disposed on the inner side of the second clamp arm 23. The top end of the second clamp arm 23 is connected to the wire rope 12, and the lower portion thereof is provided with a second groove 231. The second groove 231 is U-shaped, and has an opening facing the rotation axis and communicating with a bottom surface thereof. The first clamp arm 22 is pivotally connected to the second recess 231, and the lower end thereof extends downward and is fixedly connected to the clamp tongue 24. The clamp tongue 24 is rectangular block-shaped, and the position where the side wall close to the opening end of the clamp seat 21 is connected with the bottom surface of the clamp seat is in arc transition.

Referring to fig. 1, the anti-dropping assembly 3 is disposed between the lifting beam 1 and the two first clamp arms 22 at the same end. As shown in fig. 3, the anti-slip unit 3 includes a pulley 31, a winding box 32, a fixed shaft 33, a coil spring 34, and a rope 35. The pulley 31 is rotatably disposed at an end of the first caliper arm 22 away from the latch 24, and its rotation axis is perpendicular to the length direction of the first caliper arm 22. The furling box 32 is cuboid and is fixedly connected with the bottom surface of the lifting beam 1. The fixed shaft 33 has a circular cross section, is fixedly disposed in the roll-up box 32, and has a length direction identical to that of the lifting beam 1. The coil spring 34 is disposed inside the roll-up box 32, wound around the fixed shaft 33, and has an inner end fixedly connected to the fixed shaft 33 and an outer end fixedly connected to the pull rope 35. The winding box 32 is provided with a through hole 321, and the opening of the through hole 321 is circular. The bottom surface of the lifting beam 1 is fixedly connected with an inner hanging ring 13, and the inner hanging ring 13 is arranged on one side of the furling box 32 far away from the through hole 321. The pulling rope 35 passes through the through hole 321 and out of the furling box 32, goes around the pulley 31 on the first tong arm 22 at the same end, and is hung on the inner hanging ring 13 through the anti-drop hook 4.

Referring to fig. 1 and 3, the mousing hook 4 includes a hook head 41, a catching piece 42, and a torsion spring 43. The hook head 41 is in the shape of a hook and is fixedly connected with the pull rope 35. The cross section of the clamping member 42 is rectangular, and it is arranged in the hook head 41 and is located at one side of the opening of the hook head 41. One end of the clamping piece 42 is hinged with the hook head 41, and the other end is propped against the inner wall of the hook head 41. One end of the torsion spring 43 is fixedly connected with the clamping piece 42, and the other end is fixedly connected with the hook head 41. When the clamp is used, the clamp body 2 is pulled to clamp the plate body 15 between the clamp seat 21 and the clamp tongue 24, the four clamp bodies 2 are located at two ends of the plate body 15 in pairs, the pull rope 35 is pulled to the position of the inner hanging ring 13, the clamping piece 42 is pressed to enable the anti-unhooking hook 4 to be hung on the inner hanging ring 13, then the hanging beam 1 is lifted to enable the steel wire rope 12 and the pull rope 35 to be tensioned, the second clamp arm 23 is pressed on the first clamp arm 22 at the moment, the first clamp arm 22 drives the clamp tongue 24 to rotate, the clamp tongue 24 rotates to the plate body 15 from the arc surface of the clamp tongue 24 and presses the plate body 15 tightly, and clamping and fixing of the plate body 15 are achieved; if the steel wire rope 12 is loosened due to shaking in the hoisting process, the second clamp arm 23 rotates outwards, the stay cord 35 is kept in a tensioned state all the time under the elastic action of the coil spring 34, and then the two first clamp arms 22 at the same end are tensioned, so that the clamping effect of the clamp tongue 24 on the plate body 15 is ensured, the steel plate is ensured to be in a clamped state all the time, and the safety of the steel plate during hoisting is improved.

Referring to fig. 1 and 3, the outer hanging ring 14 is provided on both the bottom surface of the lifting beam 1 and the second caliper arm 23, and the outer hanging ring 14 is annular. Two outer rings 14 are arranged on the bottom surface of the same end of the lifting beam 1 and are positioned at two sides of the furling box 32. The total number of the outer rings 14 on the bottom surface of the lifting beam 1 is four, and the outer rings correspond to the four steel wire ropes 12 one by one respectively. The two ends of the steel wire rope 12 are also provided with anti-drop hooks 4, the anti-drop hook 4 at one end of the steel wire rope 12 is hung on the outer hanging ring 14 at the bottom surface of the lifting beam 1, and the anti-drop hook 4 at the other end of the steel wire rope 12 is hung on the outer hanging ring 14 of the second clamp arm 23. The arrangement of the outer lifting ring 14 and the anti-drop hook 4 facilitates the replacement of the steel wire ropes 12 with different lengths, so that the steel wire rope lifting device is suitable for lifting steel plates with different sizes. The inner side wall of the hook head 41 is provided with a limiting groove 411, the cross section of the limiting groove 411 is rectangular, one end of the clamping piece 42 abutting against the hook head 41 is arranged in the limiting groove 411 and abuts against the inner wall of the limiting groove 411, the clamping piece 42 is prevented from deviating from the hook head 41 towards two sides, and the closing effect of the anti-drop hook 4 is ensured.

Referring to fig. 2, a plurality of teeth 25 are fixedly connected to the inner bottom surface of the jaw base 21 and the bottom surface of the jaw 24, so as to increase the friction between the jaw base 21 and the jaw 24 and the plate 15, and improve the clamping effect of the jaw body 2. The wheel surface of the pulley 31 is provided with a ring groove 311, the cross section of the ring groove 311 is semicircular, and the pull rope 35 is arranged in the ring groove 311. A volute 312 is fixedly connected to the first caliper arm 22, and the cross section of the volute 312 is U-shaped and opens toward the pulley 31. The volute 312 is disposed on the pulley 31 on a side close to the inside of the first caliper arm 22, and shields the pull rope 35, so that the pull rope 35 is confined in the annular groove 311, and the connection effect between the pull rope 35 and the pulley 31 is ensured.

The implementation principle of the steel plate lifting clamp in the embodiment of the application is as follows: when the clamp is used, the clamp body 2 is pulled to clamp the plate body 15 between the clamp seat 21 and the clamp tongue 24, the four clamp bodies 2 are located at two ends of the plate body 15 in pairs, the pull rope 35 is pulled to the position of the inner hanging ring 13, the clamping piece 42 is pressed to enable the anti-unhooking hook 4 to be hung on the inner hanging ring 13, then the hanging beam 1 is lifted to enable the steel wire rope 12 and the pull rope 35 to be tensioned, the second clamp arm 23 is pressed on the first clamp arm 22 at the moment, the first clamp arm 22 drives the clamp tongue 24 to rotate, the clamp tongue 24 rotates to the plate body 15 from the arc surface of the clamp tongue 24 and presses the plate body 15 tightly, and clamping and fixing of the plate body 15 are achieved; if the steel wire rope 12 is loosened due to shaking in the hoisting process, the second clamp arm 23 rotates outwards, the stay cord 35 is kept in a tensioned state all the time under the elastic action of the coil spring 34, and then the two first clamp arms 22 at the same end are tensioned, so that the clamping effect of the clamp tongue 24 on the plate body 15 is ensured, the steel plate is ensured to be in a clamped state all the time, and the safety of the steel plate during hoisting is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a steel sheet jack-up pincers, includes lifting beam (1), is equipped with four wire rope (12) on lifting beam (1), and four wire rope (12) are two liang located the both ends of lifting beam (1), the one end that lifting beam (1) were kept away from in wire rope (12) are connected with pincers body (2), its characterized in that: the pliers body (2) comprises a pliers seat (21), a pliers tongue (24), a first pliers arm (22) and a second pliers arm (23), the pliers seat (21) is U-shaped, one arm of the pliers seat (21) is provided with a first groove (211), the first pliers arm (22) and the second pliers arm (23) are rotatably arranged in the first groove (211), the first pliers arm (22) is arranged on the inner side of the second pliers arm (23), the upper portion of the second pliers arm (23) is connected with the steel wire rope (12), the lower portion of the second pliers arm (23) is provided with a second groove (231), one end of the first pliers arm (22) is rotatably arranged in the second groove (231) and extends downwards to be fixedly connected with the pliers tongue (24); the other end of the first clamp arm (22) extends out of the second groove (231), and an anti-falling assembly (3) is arranged between the other end of the first clamp arm and the lifting beam (1); the anti-falling assembly (3) comprises a pulley (31) rotatably arranged on the first tong arm (22), a pull rope (35) wound on the first tong arm (22) and arranged at the same end, a coil spring (34) fixedly connected with the pull rope (35) at the outer end of the pull rope (31), and a fixed shaft (33) fixedly connected with the inner side of the coil spring (34), wherein the fixed shaft (33) is fixedly connected with the lifting beam (1).

2. A steel plate lifting clamp according to claim 1, wherein: fixedly connected with roll-up box (32) and interior lifting ring (13) on the bottom surface of lifting beam (1), fixed axle (33) reach wind spring (34) are all located in roll-up box (32), set up the confession on the lateral wall of roll-up box (32) perforation (321) that stay cord (35) were worn out, interior lifting ring (13) are located roll-up box (32) are kept away from one side of perforation (321), stay cord (35) are walked around the one end of pulley (31) is connected with mousing-hook (4), mousing-hook (4) hang in on interior lifting ring (13).

3. A steel plate lifting clamp according to claim 2, wherein: mousing-hook (4) include with stay cord (35) fixed connection's gib head (41), locate joint spare (42) in gib head (41) and fixed set up in joint spare (42) with torsional spring (43) between gib head (41), the one end of joint spare (42) with gib head (41) are articulated, the other end with the inner wall of gib head (41) supports tightly.

4. A steel plate lifting clamp according to claim 3, wherein: a limiting groove (411) is formed in the inner side wall of the hook head (41), and one end, abutted against the hook head (41), of the clamping piece (42) is arranged in the limiting groove (411).

5. A steel plate lifting clamp according to claim 3, wherein: outer rings (14) are arranged on the bottom surface of the lifting beam (1) and the second tong arm (23), and anti-falling hooks (4) hung on the outer rings (14) are arranged at two ends of the steel wire rope (12).

6. A steel plate lifting clamp according to claim 1, wherein: offer on the wheel face of pulley (31) and be used for holding annular (311) of stay cord (35), fixedly connected with is used for sheltering from on first tong arm (22) spiral case (312) of stay cord (35), spiral case (312) are located pulley (31) are close to one side of first tong arm (22) inside.

7. A steel plate lifting clamp according to claim 1, wherein: the inner bottom surface of the clamp seat (21) and the bottom surface of the clamp tongue (24) are both planes, and the bottom surface of the clamp tongue (24) is in arc transition with the connecting position of the side wall of the clamp seat (21) close to the opening.

8. A steel plate lifting clamp according to claim 1, wherein: the inner bottom surface of the forceps base (21) and the bottom surface of the forceps tongue (24) are fixedly connected with a plurality of teeth (25).

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