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CN-224227648-U - Locking cable clamp for suspension bridge

CN224227648UCN 224227648 UCN224227648 UCN 224227648UCN-224227648-U

Abstract

The utility model relates to the technical field of suspension bridge cable clamps, and discloses a locking cable clamp for a suspension bridge, which is provided with a plurality of cable clamp half bodies with semi-ring structures, wherein a plurality of bolt pairs distributed at a bearing position are used for locking adjacent cable clamp half bodies, each bolt pair is provided with a screw rod and at least one group of nut components, the nut components are in threaded connection with corresponding ends of the screw rods, the end parts of the screw rods, which are used for connecting the nut components, are provided with locking sections and locking sections which are formed in a stepped structure and are respectively provided with a threaded structure, the diameter of each locking section is smaller than that of each locking section, the thread pitch of each locking section is different from that of each locking section, each nut component is at least provided with a locking nut and a locking nut, each locking nut is in threaded connection with the corresponding locking section of the screw rod, the locking nut connected in place applies locking force on the cable clamp half bodies, and the locking nut connected in place axially abuts against the locking nut. The utility model has simple structure and is beneficial to reducing the loss of the clamping force of the bolt pair.

Inventors

  • HUANG ANMING
  • ZHANG XU
  • XIANG ZHIQIANG
  • ZHANG FAN
  • CHEN YUANLIN
  • SHI HONGCHANG
  • YANG FURONG

Assignees

  • 德阳天元重工股份有限公司

Dates

Publication Date
20260512
Application Date
20250529

Claims (10)

  1. 1. An anti-loosening rope clamp for a suspension bridge is provided with a plurality of rope clamp half bodies (1) with semi-ring structures, and a plurality of bolt pairs distributed at bearing positions are locked between the adjacent rope clamp half bodies (1); the bolt pair is provided with a screw (2) and at least one group of nut assemblies (3), and the group of nut assemblies (3) are connected with the corresponding end parts of the screw (2) in a threaded manner; the method is characterized in that: The screw rod (2) of the bolt pair is used for connecting the end part of the nut component (3), and is provided with a locking section and a locking section which are formed in a stepped structure and are respectively provided with a thread structure, the diameter of the locking section is smaller than that of the locking section, and the thread pitch of the locking section is different from that of the locking section; the nut assembly (3) is provided with at least a lock nut (32) and a locknut (31), the lock nut (32) is in threaded connection with a corresponding locking section of the screw (2), the locknut (31) is in threaded connection with a corresponding locking section of the screw (2), the lock nut (32) connected in place applies locking force to the cable clamp half body (1), and the locknut (31) connected in place axially abuts against the lock nut (32).
  2. 2. The anti-loosening clip for suspension bridges as claimed in claim 1, wherein: The thread pitch of the locking section of the screw (2) is larger than that of the locking section.
  3. 3. The anti-loosening clip for suspension bridges as claimed in claim 1, wherein: The inner hole of the locknut (31) is of a stepped structure and is provided with a small-diameter threaded section (311) and a large-diameter adjusting section (312); The locknut (31) is in threaded connection with a corresponding locksection of the screw (2) through an inner hole threaded section (311); The inner diameter of an inner hole adjusting section (312) of the locknut (31) is larger than the outer diameter of a corresponding locking section of the screw rod (2), and the axial length of the inner hole adjusting section (312) of the locknut (31) is larger than the distance between the locking nut (32) connected in place and the outer end of the locking section; The locknut (31) is connected in place, and the locknut (32) is axially abutted by the end of the inner hole adjusting section (312).
  4. 4. The anti-loosening clip for suspension bridges as claimed in claim 1, wherein: the nut component (3) is provided with a lock nut (32), a locknut (31) and a spacer ring; The inner diameter of the spacing ring is larger than the outer diameter of the corresponding locking section of the screw (2), and the axial length of the spacing ring is larger than the distance between the locking nut (32) connected in place and the outer end of the locking section; -said locknut (31) connected in place, -said locknut (32) being axially tightened by said spacer ring.
  5. 5. The anti-loosening clip for suspension bridges as set forth in claim 1, 3 or 4, wherein: the locknut (31) is of a nut structure; the locknut (31) connected to the screw (2) forms a shroud for the corresponding end of the screw (2).
  6. 6. The anti-loosening clip for suspension bridges as claimed in claim 1, wherein: the locking nut (32) is connected in place, and a locking force is applied to the cable clamp half body (1) through a gasket.
  7. 7. The anti-loosening clip for suspension bridges as set forth in claim 6, wherein: The locking nut (32) applies locking force to the cable clamp half body (1) through the spherical washer assembly (4); the spherical washer assembly (4) has an inner spherical washer (41) abutting the socket of the clip in a planar configuration, an outer spherical washer (42) between the inner spherical washer (41) and the lock nut (32), the outer spherical washer (42) mating in spherical relationship with the inner spherical washer (41).
  8. 8. The anti-loosening clip for suspension bridges as set forth in claim 7, wherein: the inner hole of the outer spherical washer (42) is larger than the inner hole of the inner spherical washer (41); And the end of the lock nut (32) is provided with a guiding and positioning section (321) which is nested in the inner hole of the outer spherical washer (42), and the lock nut (32) is matched with the outer spherical washer (42) in a spigot relation through the guiding and positioning section (321).
  9. 9. The anti-loosening clip for suspension bridges as claimed in claim 1, wherein: The bolt pair is provided with a screw rod (2) and two groups of nut assemblies (3), and two ends of the screw rod (2) are correspondingly connected with the two groups of nut assemblies (3).
  10. 10. The anti-loosening clip for suspension bridges as claimed in claim 1, wherein: The cable clamp is provided with two cable clamp half bodies (1) with semi-ring structures, wherein the two cable clamp half bodies (1) are butted in the circumferential direction to form a cable hole, and are butted in the circumferential direction to form two bearing parts; And a plurality of bolt pairs are distributed at each bearing part along the axial spacing.

Description

Locking cable clamp for suspension bridge Technical Field The utility model relates to the technical field of suspension bridge cable clamps, in particular to an anti-loosening cable clamp for a suspension bridge. Background The bridge deck load of the suspension bridge is transferred to the main cable through the sling, the main cable is parabolic, the sling is vertical, under the action of the tension of the sling, the cable clamp generates pressure vertical to the main cable and downward sliding force along the direction of the main cable, and the cable clamp anti-sliding force is applied by the bolt pair to ensure that the friction force generated between the cable clamp and the main cable is borne by the fastening force, so that the clamping force of the bolt pair is a key for ensuring the effective transfer of the load. In order to maintain the clamping force of the bolt pair, a cable clip with a locking function is proposed in the prior art, and the technology disclosed in the Chinese patent literature, namely, a cable clip with a locking function of the bolt pair, with publication number CN216739274U and publication number 2022 month 14 is referred to as a cable clip, is disclosed, in the technology, a first washer, a second washer and a nut are arranged on a screw in a penetrating way, inner end surfaces of the first washer and the second washer are respectively provided with radial wedge structures which are mutually embedded, and outer end surfaces of the first washer and the second washer are respectively provided with radial saw tooth structures. Radial wedge structures of the inner end surfaces of the first gasket and the second gasket are mutually embedded, displacement only occurs between the inner surfaces of the radial wedge structures, so that the fastening force is increased, the wedge structure can prevent loosening of a bolt pair, and the self-locking and anti-loosening effects are achieved. The technical problems of the technology are that on one hand, the structure precision requirements of the first gasket and the second gasket are high, so that the structure processing difficulty is high, and on the other hand, the matching structure of the first gasket and the second gasket can only reduce the loosening speed of the nut and can not effectively prevent the nut from loosening. Disclosure of utility model The utility model aims to provide a locking rope clip for a suspension bridge, which has a simple structure and can effectively prevent loosening of nuts and reduce loss of bolt auxiliary clamping force, aiming at the particularity of the rope clip and the defects of the prior art. The technical scheme adopted by the utility model is as follows: an anti-loosening rope clamp for a suspension bridge is provided with a plurality of rope clamp half bodies with semi-ring structures, and a plurality of bolt pairs distributed at a bearing part are used for locking adjacent rope clamp half bodies; The bolt pair is provided with a screw rod and at least one group of nut components, and the group of nut components are in threaded connection with the corresponding end parts of the screw rod; The screw rod of the bolt pair is used for connecting the end part of the nut component, and is provided with a locking section and an anti-loosening section which are formed in a stepped structure and are respectively provided with a thread structure, the diameter of the anti-loosening section is smaller than that of the locking section, and the thread pitch of the locking section is different from that of the anti-loosening section; The nut assembly is at least provided with a lock nut and a locknut, the lock nut is in threaded connection with the corresponding locking section of the screw, the locknut connected in place applies locking force to the cable clamp half body, and the locknut connected in place axially abuts against the locknut. Aiming at the particularity of the cable clamp, the technical measures are that the locking nuts with different screw pitches are matched with the locknuts on the screw rods, when the locknuts and the locknuts rotate at the same angle, the different screw pitches cause different lift ranges, so that self-locking is realized, the loosening of the nuts is effectively prevented, and the damage of the clamping force of the bolt pair is effectively reduced; The bolt pair in the technical measure has the advantages of simple structure and easy operation, and meanwhile, the diameter of the anti-loosening section of the screw is smaller than that of the locking section, so that the locking nut is convenient to install. Further, the thread pitch of the locking section of the screw is larger than that of the anti-loosening section. The screw thread pitch of the locking section of the screw is larger than that of the locking section in the technical measure, when the locknut and the locknut revolve by the same angle, the displacement of the locknut is limited by the locknut, so