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CN-122009954-A - Hoisting clamp capable of automatically locking steel rail

CN122009954ACN 122009954 ACN122009954 ACN 122009954ACN-122009954-A

Abstract

The invention relates to the technical field of steel rail hoisting equipment, and discloses a hoisting clamp capable of automatically locking a steel rail. The central sliding shaft comprises a shaft body and a connecting part, the rotation control part is used for controlling the central sliding shaft to rotate by a preset angle, the fixed sleeve is sleeved on the outer side of the rotation control part, the movable sleeve is in sliding connection with the fixed sleeve, the movable sleeve can slide from a first position to a second position along the fixed sleeve, a clamping slot hole corresponding to the connecting part is formed in one end of the movable sleeve, the hinge hook claw comprises a first hinge shaft and a second hinge shaft, the distance change of the first hinge shaft and the second hinge shaft can control the opening and closing of the hook claw, the first hinge shaft is fixedly arranged on the outer wall of the fixed sleeve, and the second hinge shaft is fixedly arranged on the outer wall of the movable sleeve. The invention can realize automatic clamping and unloading, and has the advantages of improving the loading and unloading efficiency, reducing the labor intensity and reducing the potential safety hazard.

Inventors

  • JIA ZHENGXI
  • ZHOU GAO
  • Guo Fanlinyan
  • Dong Tongxu
  • WANG BO
  • LU LU
  • CHE WANGQIANG
  • XIANG SHUZHI
  • SUN QIFENG
  • WANG BIN
  • CHEN KAISI
  • MA SENSEN
  • WANG WEI

Assignees

  • 中铁一局集团有限公司
  • 中铁一局集团新运工程有限公司
  • 中铁一局集团轨道交通运营有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. A lifting clamp for automatically locking a rail, comprising: the central sliding shaft (10), the central sliding shaft (10) comprises a shaft body (11) and a connecting part (12), and the connecting part (12) is arranged at the end part of one end of the shaft body (11); The rotation control part (20) is used for controlling the center sliding shaft (10) to rotate by a preset angle, the rotation control part (20) is sleeved on the outer side of the center sliding shaft (10), and the center sliding shaft (10) is in sliding connection with the rotation control part (20); the fixed sleeve (30) is sleeved on the outer side of the rotation control part (20), and the fixed sleeve (30) is fixedly connected with the rotation control part (20); The movable sleeve (40) is in sliding connection with the fixed sleeve (30), and the movable sleeve (40) can slide from a first position to a second position along the fixed sleeve (30), and a clamping slot hole (41) corresponding to the connecting part (12) is formed in one end of the movable sleeve (40); The hinge hook claw (50), the hinge hook claw (50) comprises a first hinge shaft (51) and a second hinge shaft (52), the opening and closing of the hook claw can be controlled by the distance change of the first hinge shaft (51) and the second hinge shaft (52), the first hinge shaft (51) is fixedly arranged on the outer wall of the fixed sleeve (30), and the second hinge shaft (52) is fixedly arranged on the outer wall of the movable sleeve (40).
  2. 2. A lifting clamp for automatically locking a steel rail according to claim 1, wherein the rotation control part (20) comprises an upper ratchet wheel (21) and a lower ratchet wheel (22), and ratchet teeth of the upper ratchet wheel (21) and ratchet teeth of the lower ratchet wheel (22) are opposite and are arranged in the fixed sleeve (30) at intervals; The center sliding shaft (10) further comprises a rotation control pin shaft (13), the central axis of the rotation control pin shaft (13) is intersected with the central axis of the shaft body (11) and is perpendicular to the central axis of the shaft body, the rotation control pin shaft (13) is at least partially located at the outer side of the shaft body (11), the part of the rotation control pin shaft (13) located at the outer side of the shaft body (11) is located between the upper ratchet wheel (21) and the lower ratchet wheel (22), and in the process of moving the rotation control pin shaft (13) up and down, the inclined tooth surfaces of the upper ratchet wheel (21) and the lower ratchet wheel (22) drive the rotation control pin shaft (13) to drive the shaft body (11) to rotate by a preset angle.
  3. 3. The hoisting clamp for automatically locking a steel rail according to claim 1, wherein the inner wall of the fixed sleeve (30) is provided with a limit chute (31) along the length direction of the barrel body of the fixed sleeve (30), and the outer wall of the movable sleeve (40) is provided with a slide block (41) matched with the limit chute (31).
  4. 4. A lifting clamp for automatically locking a rail according to any one of claims 1 to 3, characterized in that the fixed sleeve (30) is further provided with a stopper for preventing the movable sleeve (40) from sliding out of the fixed sleeve (30).
  5. 5. A hoisting clamp for automatically locking a steel rail according to any one of claims 1 to 3, characterized in that the connecting portion (12) has a rectangular parallelepiped structure, one end of the shaft body (11) is fixedly connected with the middle part of the upper surface of the rectangular parallelepiped structure, and four edges of the lower surface of the rectangular parallelepiped structure are provided with chamfers.
  6. 6. A lifting clamp for automatically locking a steel rail according to any one of claims 1 to 3, characterized in that the hinged claw (50) further comprises a first connecting rod (53), a second connecting rod (54), a third connecting rod (55), a fourth connecting rod (56), a first claw (57) and a second claw (58), one end of the first connecting rod (53) and one end of the second connecting rod (54) are hinged together through a first hinge shaft (51), the other end of the first connecting rod (53) is hinged with one end of the third connecting rod (55), the other end of the second connecting rod (54) is hinged with one end of the fourth connecting rod (56), the first claw (57) and the second claw (58) are arranged in a crossing manner, the second hinge shaft (52) passes through the crossing point of the first claw (57) and the second claw (58), the first claw (57) and the second claw (58) are hinged together, the third connecting rod (55) and the fourth connecting rod (56) are also arranged in a crossing manner, and the other end of the first connecting rod (56) is hinged with the other end of the fourth connecting rod (56).
  7. 7. The hoisting clamp for automatically locking steel rails according to claim 6, wherein the number of the hinge hooks (50) is two, and the two hinge hooks (50) are piled to be arranged at the left and right sides of the fixing sleeve (30).
  8. 8. The hoisting clamp for the automatic locking steel rail according to claim 7, further comprising a protective shell (60), wherein the protective shell (60) is arranged on the outer side of the fixed sleeve (30), and the protective shell (60) is fixedly connected with the fixed sleeve (30).
  9. 9. The hoisting clamp for automatically locking steel rails according to claim 8 is characterized in that the lower part of the side plate of the protective shell (60) opposite to the hinge knuckle (50) is provided with a guide groove (61).
  10. 10. A lifting clamp for automatically locking a steel rail according to claim 9, characterized in that the guiding groove (61) comprises a vertical section and a flared section, the flared section being located below the vertical section, the flared section opening downwards.

Description

Hoisting clamp capable of automatically locking steel rail Technical Field The invention relates to the technical field of steel rail hoisting equipment, in particular to a hoisting clamp capable of automatically locking a steel rail. Background The steel rail occupies a core position in modern industry and traffic infrastructure construction by virtue of the advantages of high strength, high precision, wear resistance, corrosion resistance and the like, and is widely applied to the scenes of railway track laying, bridge construction, heavy machinery manufacturing and the like. However, the large volume and heavy mass of the rail makes its handling highly dependent on dedicated lifting equipment. The current main stream hoisting mode mainly comprises two types, namely a first type of manually binding and fixing by adopting a steel wire rope or a chain and a second type of using a special steel rail hoisting clamp. In the steel wire rope or chain binding operation, operators need to repeatedly wind and tighten and unbind the rope, the process is low in efficiency and high in labor intensity, dumping or overturning accidents are extremely easy to occur due to unstable gravity center of the steel rail, and serious threat is formed to safety of field personnel. Although the special steel rail lifting clamp simplifies the operation flow to a certain extent, the clamping and clamping unloading actions still need to be completed by manual intervention. Because the clamp is heavy in structure, operators need to consume more force during close-range operation, and especially at the moment of clamping and clamping unloading, the steel rail can slip or overturn due to inaccurate positioning of the clamp, so that the risk of cold breaking is obviously increased. In addition, under complex working conditions or continuous working environments, frequent manual operation further aggravates the fatigue degree of workers, reduces the overall loading and unloading efficiency, and meanwhile, the potential safety hazard is not effectively eliminated all the time. These drawbacks severely limit the safety and convenience of rail handling operations. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides the hoisting clamp capable of automatically locking the steel rail, which has the advantages of realizing automatic clamping and clamping unloading, improving the loading and unloading efficiency, reducing the labor intensity and reducing the potential safety hazard. In order to achieve the above object, the present invention provides a hoisting clamp for automatically locking a steel rail, comprising: The central sliding shaft comprises a shaft body and a connecting part, and the connecting part is arranged at the end part of one end of the shaft body; the rotation control part is used for controlling the center sliding shaft to rotate by a preset angle, the rotation control part is sleeved on the outer side of the center sliding shaft, and the center sliding shaft is in sliding connection with the rotation control part; The fixed sleeve is sleeved on the outer side of the rotation control part and is fixedly connected with the rotation control part; The movable sleeve is connected with the fixed sleeve in a sliding way, and can slide from a first position to a second position along the fixed sleeve; the hinge hook comprises a first hinge shaft and a second hinge shaft, the distance between the first hinge shaft and the second hinge shaft is changed to control the opening and closing of the hook, the first hinge shaft is fixedly arranged on the outer wall of the fixed sleeve, and the second hinge shaft is fixedly arranged on the outer wall of the movable sleeve. Further, the invention also provides that the rotation control part comprises an upper ratchet wheel and a lower ratchet wheel, and the ratchet teeth of the upper ratchet wheel and the ratchet teeth of the lower ratchet wheel are opposite and are arranged in the fixed sleeve at intervals; The central sliding shaft further comprises a rotation control pin shaft, the central axis of the rotation control pin shaft is intersected with and perpendicular to the central axis of the shaft body, at least part of the rotation control pin shaft is located on the outer side of the shaft body, the part of the rotation control pin shaft located on the outer side of the shaft body is located between the upper ratchet wheel and the lower ratchet wheel, and in the up-and-down movement process of the rotation control pin shaft, the inclined tooth surfaces of the upper ratchet wheel and the lower ratchet wheel drive the rotation control pin shaft to drive the shaft body to rotate by a preset angle. Furthermore, the invention also provides that the inner wall of the fixed sleeve is provided with a limit chute along the length direction of the barrel body of the fixed sleeve, and the outer wall of the movable sleeve is provided with a sliding block