CN112196949A

CN112196949A - Pear-shaped rope socket with high connection and fastening performance

Info

Publication number: CN112196949A
Application number: CN202011064069.2A
Authority: CN
Inventors: 荆卫忠
Original assignee: Wuxi Oulide Lifting Equipment Co ltd
Current assignee: Wuxi Oulide Lifting Equipment Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-08
Anticipated expiration: 2040-09-30
Also published as: CN112196949B

Abstract

The application relates to a pear-shaped rope sleeve with high connection and fastening performance, which comprises a hollow casing with openings at two ends and a sleeve core coaxially arranged in the casing, wherein the inner diameter of the casing is gradually reduced from one end of the casing to the other end of the casing, and the outer wall of the sleeve core is abutted to the inner wall of the casing; and a plurality of left-handed or right-handed spiral grooves are uniformly distributed on the outer wall of the sleeve core. This application has and is connected easy operation convenience and connect firm effect with wire rope.

Description

Pear-shaped rope socket with high connection and fastening performance

Technical Field

The application relates to the field of steel rope connecting pieces, in particular to a pear-shaped rope sling with high connection tightness.

Background

The steel rope connection is used in a large number of occasions such as production, transportation, storage, wharfs and the like, and a process of quick steel rope connection is required in a large number of operations of the occasions, so that the steel rope is required to be quickly fixedly connected with the rope sleeve. Generally, a steel wire rope is formed by stranding and twisting a plurality of steel wires.

The connection mode between the steel wire rope and the rope sling in the related technology is as follows: after the steel wire rope is inserted into the rope sleeve, the head end of the steel wire rope is scattered, the head of the steel wire rope is butted or bent, the head of the steel wire rope is made into a chrysanthemum shape, and then the steel wire rope is cleaned. The steel wire rope is pulled into a rope sleeve, the rope sleeve is preheated, then alloy is used for casting, and the steel wire rope can be used after being cooled for 24 hours. Therefore, the connection operation of the steel wire rope and the rope sleeve is complex and long, and the use is inconvenient.

Disclosure of Invention

In order to improve the inconvenient problem of current fag end connection operation, this application provides a high fastening nature pyriform fag end of connecting.

The application provides a high connection fastening nature pyriform fag end adopts following technical scheme:

a pear-shaped rope sling with high connection and fastening performance comprises a hollow casing with openings at two ends and a sling core coaxially arranged in the casing, wherein the inner diameter of the casing is gradually reduced from one end of the casing to the other end of the casing, and the outer wall of the sling core is abutted to the inner wall of the casing; and a plurality of left-handed or right-handed spiral grooves are uniformly distributed on the side surface of the sleeve core.

By adopting the technical scheme, when the steel wire rope is connected, the head end of the steel wire rope penetrates into the casing, then each strand of steel wire at the head end of the steel wire rope is dispersed, each strand of steel wire is clamped into the spiral groove on the casing core, then the casing core is arranged into the casing, and meanwhile, the steel wire rope is tensioned, so that the connection between the steel wire rope and the pear-shaped rope casing is completed. The pear-shaped rope sling and the steel wire rope connected in the mode are firm in connection and not prone to loosening, connection operation is simpler and more convenient compared with that of the rope sling in the related technology, and connection time of the steel wire rope and the rope sling is greatly saved.

The quantity of the spiral groove on the cover core in this application can set up as required, and the strand number of the steel wire of the wire rope that is connected with actual need is the same can.

Optionally, the sleeve core comprises a first circular truncated cone block and a second circular truncated cone block which are coaxially arranged, the spiral groove comprises a first spiral groove arranged on the conical surface of the first circular truncated cone block and a second spiral groove arranged on the conical surface of the second circular truncated cone block, and the first spiral groove and the second spiral groove are in one-to-one correspondence in position; a cushion block is arranged at the end, with the larger diameter, of the first circular truncated cone block, and a connecting shaft is arranged on the cushion block; the connecting shaft penetrates through the second circular truncated cone block, and a fastener for fastening the second circular truncated cone block is arranged at the tail end of the connecting shaft.

Through adopting above-mentioned technical scheme, the setting up of cushion makes cover core middle part be formed with the annular groove, each strand of copper wire with the dispersion of wire rope head card respectively go into by first groove of revolving, behind the spiral groove that the second revolved the groove and is constituteed, circumferential direction second round platform piece, make the first groove of revolving that the position corresponds originally stagger with the second revolves the groove, be located first groove of revolving and the second revolves the copper wire card of groove clearance department and go into the annular groove between first round platform piece and the second round platform piece, then lock second round platform piece with the help of the fastener. So, increased the copper wire around the curvature on the cover core, can further reduce the not hard up of copper wire, even if the copper wire size is not high with the helicla flute matching degree or the copper wire surface adheres to when having the finish, the copper wire is because of receiving the pulling force and follow the condition of helicla flute slippage also to appear, has effectively guaranteed the firm degree of connection of pyriform fag end and wire rope.

Optionally, a compression spring located between the first circular truncated cone block and the second circular truncated cone block is sleeved on the connecting shaft, and an accommodating groove for accommodating the compression spring is formed in the cushion block.

Through adopting above-mentioned technical scheme, compression spring is in compression state all the time by the centre gripping between first round platform piece and second round platform piece, can exert axial effort to the second round platform piece for the difficult circumferential direction of second round platform piece does benefit to and keeps the relative dislocation relation between first round platform piece and the second round platform piece, can cooperate the fastener to lock the second round platform piece better.

Optionally, the cushion block is provided with a clamping block, and a plurality of clamping grooves for the clamping block to be clamped in are formed in the end face of the second circular table block along the circumferential direction of the second circular table block.

By adopting the technical scheme, when the steel wire rope is connected, the second circular table block can be moved along the circumferential direction of the connecting shaft firstly, then the circumferential rotation enables the first circular table block and the second circular table block to be circumferentially staggered, and then the second circular table is moved in the axial direction of the connecting shaft in the reverse direction so that the clamping block is clamped into the clamping groove, so that the relative position between the first circular table block and the second circular table block is locked, and the steel wire clamped into the first rotary groove and the second rotary groove is not easy to loosen.

Optionally, the connecting shaft is in threaded connection with the second round block.

Through adopting above-mentioned technical scheme, when connecting wire rope, rotatory second round platform piece can, need not the fastener and also can realize preliminary fixed.

Optionally, the fastener is a fastening nut threadedly attached to the end of the connecting rod.

By adopting the technical scheme, the relative position of the first round table and the second round table can be fixed by screwing the fastening nut, and the operation is simple. If necessary, a gasket can be added to improve the connection firmness.

Optionally, the cushion block is circular, and the diameter difference between the diameter of the cushion block and the larger end of the first circular truncated cone block is larger than the diameter of a single steel wire forming the steel wire rope.

By adopting the technical scheme, the circular cushion block has no sharp water caltrop, and the steel wire is not easily blocked when the second circular platform block is rotated; the diameter difference between the diameter of the cushion block and the diameter of the larger end of the first circular truncated cone block is larger than the diameter of a single-stranded steel wire forming the steel wire rope, so that the annular groove formed in the sleeve core can well accommodate the steel wire, the contact area between the annular groove and the steel wire is increased, and the firm connection between the steel wire rope and the pear-shaped rope sleeve is facilitated.

Optionally, the thickness of the spacer block is larger than the diameter of a single steel wire constituting the steel cord.

Through adopting above-mentioned technical scheme for behind first round platform piece and the relative dislocation of second round platform piece, the copper wire can fully block in the annular of cushion department, has increased the slippage degree of difficulty of copper wire, thereby has promoted the firm degree of being connected between wire rope and the pyriform noose.

Optionally, the thickness of the second circular truncated cone block is smaller than that of the first circular truncated cone block.

By adopting the technical scheme, the annular groove in the sleeve core is positioned in the middle of the sleeve core and is deviated to one side of the second round table, the second round table can be rotated conveniently to be a bent steel wire, and the connecting operation difficulty is reduced.

Optionally, a central through hole is provided in the sleeve core.

Through adopting above-mentioned technical scheme for the pear form fag end of this application is applicable to and is connected with the wire rope that contains the inner core. During connection, the inner core of the steel wire rope is inserted into the central through hole, and the outer steel wires are respectively clamped into the spiral grooves in the sleeve core.

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

1. the pear-shaped rope sleeve main body comprises a sleeve shell and a sleeve core, wherein a plurality of uniformly distributed spiral grooves are formed in the sleeve core, steel wires with dispersed rope sections are respectively clamped into the spiral grooves when the steel wires are connected, and then the sleeve core is inserted into the sleeve shell, so that the connection operation steps between the steel wires and the rope sleeve are greatly simplified on the premise of ensuring the connection firmness;

2. in the preferred scheme, the sleeve core comprises a first circular platform block, a second circular platform block, a cushion block, a connecting shaft and a fastener, before the sleeve core is clamped into the sleeve shell, the first circular platform block and the second circular platform block are circumferentially staggered, so that a steel wire/steel rope is clamped into a gap between the first circular platform block and the second circular platform block, the winding degree of the steel wire on the sleeve core is increased, even if the steel wire is not matched with the size of a spiral groove or is easy to slip due to oil solution adhesion and the like, the steel wire is not easy to slip along the spiral groove, and the connection firmness of the steel wire rope and the pear-shaped rope sleeve is greatly increased;

3. furthermore, a compression spring is arranged between the first circular table block and the second circular table block, so that the looseness of the second circular table block is reduced; the cushion block is provided with a clamping block, the circular table block is provided with a clamping groove, and the first circular table block and the second circular table block can be quickly and preliminarily fixed through the clamping and embedding matching of the clamping block and the clamping groove;

4. set up central through-hole in the cover core for can connect the wire rope that contains the inner core, increase the suitability of this application pyriform fag end.

Drawings

Fig. 1 is a schematic view of the structure of a high-connection-tightness pear-shaped rope sling according to example 1 of the present application.

Fig. 2 is an exploded view of a high attachment security pear-shaped rope sling according to example 1 of the present application.

Fig. 3 is an exploded view of a high attachment security pear-shaped rope sling according to example 2 of the present application.

Fig. 4 is a cross-sectional view of a core sleeve of example 2 of the present application.

Fig. 5 is a cross-sectional view of a core sleeve of example 3 of the present application.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is an exploded view of the sheath core of example 4 of the present application.

Fig. 8 is a schematic structural view of a second truncated cone block according to embodiment 4 of the present application.

Description of reference numerals: 1. a housing; 11. hanging a lug; 2. sleeving a core; 21. a first circular table block; 211. cushion blocks; 2111. accommodating grooves; 2112. a compression spring; 2113. a clamping block; 212. a connecting shaft; 2121. a central through hole; 2122. tightening the nut; 22. a second circular table block; 221. a card slot; 23. a helical groove; 231. a first rotary groove; 232. and a second spiral groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses high connection fastening nature pyriform fag end.

Example 1

Referring to fig. 1, the pear-shaped highly-fastening rope socket includes a hollow casing 1 having two open ends, and the inner diameter of the casing 1 is gradually reduced from one end to the other end along the axial direction thereof, so that the inner surface forms a conical surface. The great one end of cover shell 1 diameter is equipped with two hangers 11, and two hangers 11 symmetric distribution are in the both sides of cover shell 1 axis.

Referring to fig. 1 and 2, a sleeve core 2 is coaxially arranged in the sleeve 1, the side wall of the sleeve core 2 is abutted against the inner wall of the sleeve 1, and six spiral grooves 23 are formed in the sleeve core 2. The six spiral grooves 23 are uniformly distributed in the circumferential direction of the sleeve core 2 and are all right-handed spiral grooves 23. In other embodiments, the direction and number of the spiral grooves 23 can be set according to actual needs.

The implementation principle of the embodiment 1 is as follows: when the pear-shaped rope sleeve and the steel wire rope are connected, the head end of the steel wire rope is firstly inserted into the casing 1; then, dispersing the head ends of the steel wire ropes into six strands of steel wires; then the six strands of steel wires are respectively clamped into six spiral grooves 23 on the sleeve core 2; finally, the sleeve core 2 is inserted into the sleeve 1, and the steel wire rope is pulled so that the sleeve core 2 is tightly connected with the sleeve 1. According to the steel wire rope and the pear-shaped rope sling which are connected in the mode, the connection operation is simple, the connection is firm, and the steel wire rope and the pear-shaped rope sling are not easy to loosen.

Example 2

Referring to fig. 3 and 4, embodiment 2 differs from embodiment 1 in that: the sleeve core 2 comprises a first circular platform block 21 and a second circular platform block 22, and the axial length of the first circular platform block 21 is larger than that of the second circular platform block 22. Six first rotary grooves 231 are uniformly distributed on the conical surface of the first circular truncated cone block 21, and six second rotary grooves 232 are uniformly distributed on the conical surface of the second circular truncated cone block 22. In the initial state, the first spiral grooves 231 and the second spiral grooves 232 are in one-to-one correspondence to form the spiral groove 23. The end face of the larger end of the first circular table block 21 is coaxially provided with a circular cushion block 211, the thickness of the cushion block 211 is larger than the diameter of a single-stranded steel wire forming the steel wire rope, and the diameter difference between the diameter of the cushion block 211 and the larger end of the first circular table block 21 is larger than the diameter of the single-stranded steel wire forming the steel wire rope. The cushion block 211 is coaxially and fixedly provided with a connecting shaft 212, the middle part of the second circular table block 22 is provided with a through hole, and the connecting shaft 212 penetrates through the through hole on the second circular table block 22. The end of the connecting shaft 212 remote from the spacer 211 extends out of the larger diameter end of the second circular table block 22, and the end is threadedly connected with a fastening nut 2122.

The implementation principle of the embodiment 2 is as follows: after steel wires scattered at the head ends of the steel wire ropes are respectively clamped into the corresponding spiral grooves 23, the second circular table block 22 is rotated in the circumferential direction, so that the first rotary groove 231 and the second rotary groove 232 corresponding to the positions are staggered, the steel wire parts are clamped into a gap between the first circular table block 21 and the second circular table block 22, and the nut 2122 is locked and fastened to fix the relative positions of the first circular table block 21 and the second circular table block 22. Then, pack into cover 1 with cover core 2 is whole again, so can increase the degree of difficulty that the copper wire breaks away from helicla flute 23, further promote the fastening nature of being connected of wire rope and pyriform noose. The pear-shaped rope sling with high connection tightness is suitable for the situation that the diameter of a single steel wire is smaller than the depth of the spiral groove 23 or oil is adhered to the surface of the steel wire, and still has high connection tightness and firmness.

Example 3

Referring to fig. 5 and 6, embodiment 3 differs from embodiment 2 in that: the connecting shaft 212 is in threaded connection with the second circular truncated cone 22, and the relative positions of the first circular truncated cone 21 and the second circular truncated cone 22 can be better locked by matching with the fastening nut 2122. Meanwhile, in order to make the relative position of the first circular platform block 21 and the second circular platform block 22 after dislocation not easy to change, an annular accommodating groove 2111 is formed on the cushion block 211, and a compression spring 2112 positioned in the accommodating groove 2111 is sleeved on the connecting shaft 212. Compression spring 2112 is in compression state all the time, so can exert axial effort to second round platform piece 22, is convenient for on the one hand rotate second round platform piece 22's operation, and on the other hand makes and is difficult by oneself circumferential direction with the help of the difficult back of fastening nut 2122 locking second round platform piece 22 to make the difficult pine of copper wire take off, further promoted the firm degree of being connected of wire rope and pyriform fag end.

Referring to fig. 5 and 6, in the present embodiment, a through central through hole 2121 is provided in the sheath core 2, so that the pear-shaped rope sheath with high connection tightness in the present embodiment is suitable for connecting a steel wire rope with an inner core, and when connecting, steel wires with scattered rope ends are clamped into the spiral groove 23 on the sheath core 2, and the inner core is inserted into the central through hole 2121.

Example 4

Referring to fig. 7 and 8, embodiment 4 differs from embodiment 2 in that: a plurality of clamping blocks 2113 are uniformly distributed on the cushion block 211 along the circumferential direction of the connecting shaft 212, and a plurality of clamping grooves 221 for clamping the clamping blocks 2113 are formed on the end surface of the second circular platform block 22. After steel wires scattered at the head end of the steel wire rope are respectively clamped into the spiral grooves 23 on the sleeve core 2, the second circular table block 22 is moved axially along the connecting shaft 212 to enable the clamping blocks 2113 to be separated from the clamping grooves 221; then, the circumferential rotation causes the corresponding first spiral groove 231 and second spiral groove 232 to be misaligned; then, the second circular platform block 22 is moved reversely until the fixture block 2113 is clamped into the clamping groove 221; finally, the nut 2122 is tightly locked, the sleeve core 2 is arranged in the sleeve shell 1, and the connection of the steel wire rope and the pear-shaped rope sleeve is completed. The connection of the steel wire rope and the pear-shaped rope sleeve in the mode is simple in connection operation and firm and stable in connection.

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

1. The utility model provides a high connection fastening nature pyriform noose which characterized in that: the device comprises a hollow casing (1) with two open ends and a sleeve core (2) coaxially arranged in the casing (1), wherein the inner diameter of the casing (1) is gradually reduced from one end of the casing (1) to the other end, and the outer wall of the sleeve core (2) is abutted to the inner wall of the casing (1); a plurality of left-handed or right-handed spiral grooves (23) are uniformly distributed on the side surface of the sleeve core (2).

2. The high connection tightness pear-shaped noose according to claim 1, characterized in that: the sleeve core (2) comprises a first circular truncated cone block (21) and a second circular truncated cone block (22) which are coaxially arranged, the spiral groove (23) comprises a first spiral groove (231) arranged on the conical surface of the first circular truncated cone block (21) and a second spiral groove (232) arranged on the conical surface of the second circular truncated cone block (22), and the first spiral groove (231) and the second spiral groove (232) are in one-to-one correspondence; a cushion block (211) is arranged at the end, with the larger diameter, of the first circular table block (21), and a connecting shaft (212) is arranged on the cushion block (211); the connecting shaft (212) penetrates through the second circular platform block (22), and a fastener for fastening the second circular platform block (22) is arranged at the tail end of the connecting shaft (212).

3. The high connection tightness pear-shaped noose according to claim 2, characterized in that: the connecting shaft (212) is sleeved with a compression spring (2112) located between the first circular platform block (21) and the second circular platform block (22), and the cushion block (211) is provided with an accommodating groove (2111) for accommodating the compression spring (2112).

4. The high connection tightness pear-shaped noose according to claim 2, characterized in that: a clamping block (2113) is arranged on the cushion block (211), and a plurality of clamping grooves (221) for clamping the clamping block (2113) are formed in the end face of the second circular platform block (22) along the circumferential direction of the second circular platform block (22).

5. The high connection tightness pear-shaped noose according to any one of claims 2-4, characterized in that: the connecting shaft (212) is in threaded connection with the second circular table block (22).

6. The high connection tightness pear-shaped noose according to claim 5, characterized in that: the fastener is a fastening nut (2122) threadedly attached to the end of the connecting rod.

7. The high connection tightness pear-shaped noose according to any one of claims 2-4, characterized in that: the cushion block (211) is circular, and the diameter difference between the diameter of the cushion block (211) and the larger end of the first circular table block (21) is larger than the diameter of a single steel wire forming the steel wire rope.

8. The high connection tightness pear-shaped noose according to any one of claims 2-4, characterized in that: the thickness of the cushion block (211) is larger than the diameter of a single steel wire forming the steel wire rope.

9. The high connection tightness pear-shaped noose according to any one of claims 2-4, characterized in that: the thickness of the second circular platform block (22) is smaller than that of the first circular platform block (21).

10. The high connection tightness pear-shaped noose according to claim 1, characterized in that: a central through hole (2121) is arranged in the sleeve core (2).