Steel wire rope connecting device and traction equipment

Abstract

The invention provides a steel wire rope connecting device and traction equipment, and relates to the technical field of traction equipment. The invention provides a steel wire rope connecting device. The steel wire rope connecting device comprises a rope head taper sleeve, a locking piece, a traction connecting piece and a limiting cover. The traction connecting piece is inserted into the rope head taper sleeve, and the traction connecting piece has the degree of freedom of rotation relative to the rope head taper sleeve; the limiting cover is connected with the rope head taper sleeve, and the limiting cover is used for limiting the traction connecting piece to be separated from the rope head taper sleeve; the locking piece is detachably installed on the rope head taper sleeve, and under the state that the locking piece is installed on the rope head taper sleeve, the locking piece limits the traction connecting piece to rotate relative to the rope head taper sleeve. By the adoption of the steel wire rope connecting device, the torsion stress of the steel wire rope can be released efficiently and conveniently, the rotation freedom degree of the steel wire rope can be locked after the torsion stress is released, the construction time is saved, and the construction process is safer.

Description

Technical Field

[0001] The present invention relates to the technical field of traction equipment, and in particular to a wire rope connection device and a traction equipment. Background Art

[0002] Traditional wire ropes are widely used in industries, construction, transportation and other fields. As one of the important connecting parts of wire ropes, wire rope socket is mainly used for fixing and connecting wire ropes. In actual applications, certain torsional stresses will inevitably be generated during the production process of wire ropes. When the wire rope is connected through the socket, due to the limitations in the structural design of traditional wire rope sockets, that is, they cannot rotate by themselves to release the torsional stress inside the wire rope, these torsional stresses will exist inside the wire rope for a long time.

[0003] During long-term use, these unreleased torsional stresses will cause uneven distribution of the wire rope tension, affecting the riding comfort of the elevator. At the same time, they will also cause gradual damage to the internal structure of the wire rope, thereby affecting the service life of the wire rope. To solve this problem, in the prior art, the method of using an external force bearing suspension system is usually adopted to assist in releasing the torsional stress of the wire rope. The specific operation is to apply an external force with the help of external equipment after connecting the wire rope to release the wire rope to a slack state, so that the wire rope can rotate smoothly to release the internal torsional stress. However, this method not only requires additional corresponding mechanical equipment, increasing the operation cost, but also has relatively high requirements for the technical level of operators, with large operation difficulty and low efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a wire rope connection device and a traction equipment to alleviate the technical problem that it is difficult for the wire rope connection device in the prior art to release the torsional stress of the wire rope.

[0005] In a first aspect, the wire rope connection device provided by the present invention includes: a socket, a locking member, a pulling connecting member and a limit cover;

[0006] The pulling connecting member is inserted into the socket, and the pulling connecting member has a degree of freedom to rotate relative to the socket;

[0007] The limit cover is connected to the socket, and the limit cover is used to prevent the pulling connecting member from coming out of the socket;

[0008] The locking member is detachably installed on the socket. In the state where the locking member is installed on the socket, the locking member restricts the pulling connecting member from rotating relative to the socket.

[0009] In combination with the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein a plurality of jacks are provided on the rope end cone sleeve at intervals in the circumferential direction, and the locking member passes through the jacks and is inserted into the pulling connection member.

[0010] In combination with the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein one of the jacks is opposite to another jack along the circumferential direction of the rope end cone sleeve;

[0011] The locking member passes through two opposite jacks, and the projection of the jack on the plane perpendicular to the insertion direction of the locking member extends along the axial direction of the rope end cone sleeve.

[0012] In combination with the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein a limiting boss is provided at the end of the locking member, and the locking member is connected with a first magnet, and the pulling connection member is connected with a second magnet;

[0013] In the state where the limiting boss is aligned with the jack, the locking member passes through the jack and is inserted into the pulling connection member;

[0014] The first magnet and the second magnet interact with each other to make the locking member move relative to the pulling connection member and make the limiting boss misalign with the jack.

[0015] In combination with the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the pulling connection member is provided with a head end and a convex ring;

[0016] The head end and the convex ring are inserted into the rope end cone sleeve, and the head end is provided with a locking hole for cooperating with the locking member;

[0017] The convex ring is in clearance fit with the rope end cone sleeve.

[0018] In combination with the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein a bearing is installed between the convex ring and the limiting cover.

[0019] In combination with the fourth possible implementation manner of the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein a guiding and limiting portion is provided in the locking hole;

[0020] The guiding and limiting portion has a guiding inclined surface that inclines away from the convex ring along the insertion direction of the locking member, and a convex portion formed by the butt joint of two guiding inclined surfaces extending inward from both ends of the locking hole;

[0021] The locking member is provided with a clamping groove adapted to the convex portion, and the locking member is inserted into the locking hole along the guiding inclined surface, and the clamping groove is in clamping fit with the convex portion.

[0022] Combined with the sixth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the locking member includes an elastically bendable pin rod;

[0023] In a state where the locking member is inserted into the locking hole, the locking member presses the convex portion so that the convex ring pushes against the limiting cover.

[0024] Combined with the seventh possible implementation manner of the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein when a plurality of jacks are arranged at intervals in the circumferential direction of the rope end cone sleeve, the projections of the jacks on a plane perpendicular to the insertion direction of the locking member extend along the axial direction of the rope end cone sleeve away from the limiting cover and the width gradually decreases.

[0025] In a second aspect, the traction device provided by the present invention is equipped with the wire rope connecting device described in the first aspect.

[0026] The embodiments of the present invention bring the following beneficial effects: The traction connecting member is inserted into the rope end cone sleeve, and the traction connecting member has a degree of freedom of rotation relative to the rope end cone sleeve. By freely rotating the traction connecting member relative to the rope end cone sleeve, the torsional stress of the connected wire rope can be released. The locking member can also be installed on the rope end cone sleeve. In a state where the locking member is installed on the rope end cone sleeve, the locking member restricts the rotation of the traction connecting member relative to the rope end cone sleeve, so that the wire rope after releasing the torsional stress can be locked, and the operation is convenient and safe.

[0027] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0028] In order to more clearly illustrate the specific implementation manners of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required to be used in the description of the specific implementation manners or the related technical solutions. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a cross-sectional view of the first wire rope connecting device provided by the embodiment of the present invention;

[0030] Figure 2 It is a cross-sectional view of the second wire rope connecting device provided by the embodiment of the present invention;

[0031] Figure 3 The top view of a wire rope connection device provided by an embodiment of the present invention;

[0032] Figure 4 The cross-sectional view of the third wire rope connection device provided by an embodiment of the present invention in a state where the limiting boss and the jack are aligned;

[0033] Figure 5 The cross-sectional view of the third wire rope connection device provided by an embodiment of the present invention in a state where the limiting boss and the jack are misaligned;

[0034] Figure 6 The cross-sectional view of the fourth wire rope connection device provided by an embodiment of the present invention;

[0035] Figure 7 The top view of another wire rope connection device provided by an embodiment of the present invention.

[0036] Icon: 001 - rope end cone sleeve; 101 - jack; 002 - locking member; 201 - limiting boss; 202 - card slot; 003 - pulling connecting member; 301 - guiding inclined surface; 302 - protruding portion; 031 - end; 311 - locking hole; 032 - convex ring; 004 - limiting cover; 005 - bearing; 006 - first magnet; 007 - second magnet. Detailed implementation manners

[0037] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used to describe name differences and cannot be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise individually marked, should be understood as the basic quantities of the basic units of the International System of Units, or derived quantities obtained by mathematical operations such as multiplication, division, differentiation, or integration from the basic quantities.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] As Figure 1 and Figure 2 shown, the wire rope connection device provided by an embodiment of the present invention includes: a rope head cone sleeve 001, a locking member 002, a pulling connection member 003, and a limiting cover 004; the pulling connection member 003 is inserted into the rope head cone sleeve 001, and the pulling connection member 003 has a degree of freedom of rotation relative to the rope head cone sleeve 001; the limiting cover 004 is connected to the rope head cone sleeve 001, and the limiting cover 004 is used to prevent the pulling connection member 003 from coming out of the rope head cone sleeve 001; the locking member 002 is detachably installed on the rope head cone sleeve 001, and in the state where the locking member 002 is installed on the rope head cone sleeve 001, the locking member 002 restricts the pulling connection member 003 from rotating relative to the rope head cone sleeve 001.

[0041] In an alternative embodiment, the pulling connection member 003 can be configured as a spherical or cylindrical structure and rotatably fitted inside the rope head cone sleeve 001. The torque generated after the wire rope connected to the rope head cone sleeve 001 is tensioned can be released by the rotation of the rope head cone sleeve 001 relative to the pulling connection member 003. After the internal torque of the wire rope is released, the rope head cone sleeve 001 and the pulling connection member 003 can be relatively locked by installing the locking member 002, thereby preventing the rope head cone sleeve 001 from rotating relative to the pulling connection member 003 again.

[0042] As Figure 3 shown, in an alternative embodiment, the rope head cone sleeve 001 is provided with a plurality of jacks 101 arranged at intervals in the circumferential direction. The locking member 002 passes through the jacks 101 and is inserted into the pulling connection member 003. In the case where a plurality of jacks 101 are arranged at intervals in the circumferential direction of the rope head cone sleeve 001, after the torque of the wire rope is released, one of the jacks 101 is aligned with the hole position on the pulling connection member 003, and the locking member 002 can pass through the jack 101 and be inserted into the hole position on the pulling connection member 003, thereby realizing the locking of the rope head cone sleeve 001 relative to the pulling connection member 003.

[0043] In an alternative embodiment, one jack 101 is opposite to another jack 101 along the circumferential direction of the rope end cone sleeve 001; the locking member 002 passes through the two opposite jacks 101, and the projection of the jack 101 on a plane perpendicular to the insertion direction of the locking member 002 extends along the axial direction of the rope end cone sleeve 001. When the locking member 002 is used to lock the rope end cone sleeve 001 and the pulling connecting member 003, the locking member 002 passes through the rope end cone sleeve 001 and the pulling connecting member 003 along the insertion direction. In addition, the locking member 002 can slide axially along the rope end cone sleeve 001 within the jack 101, so that the pulling connecting member 003 has a certain length of movement stroke axially relative to the rope end cone sleeve 001, and moreover, it is more convenient for the locking member 002 to be inserted into the hole position on the pulling connecting member 003 corresponding to the jack 101 when passing through the jack 101.

[0044] As Figure 4 and Figure 5 shown, a limiting boss 201 is provided at the end of the locking member 002, and a first magnet 006 is connected to the locking member 002, and a second magnet 007 is connected to the pulling connecting member 003; in a state where the limiting boss 201 is aligned with the jack 101, the locking member 002 passes through the jack 101 and is inserted into the pulling connecting member 003; the first magnet 006 and the second magnet 007 interact with each other so that the locking member 002 moves relative to the pulling connecting member 003 and the limiting boss 201 is misaligned with the jack 101.

[0045] In an alternative embodiment, when the locking member 002 passes through the jack 101 and is inserted into the pulling connecting member 003, the first magnet 006 and the second magnet 007 attract or repel each other, so that the locking member 002 can rotate relative to the pulling connecting member 003 or slide axially along the rope end cone sleeve 001, so that the limiting boss 201 is misaligned with the jack 101, and further, the locking member 002 can be prevented from slipping out of the jack 101.

[0046] As Figure 1 and Figure 6 shown, the pulling connecting member 003 is provided with a head 031 and a convex ring 032; the head 031 and the convex ring 032 are inserted into the rope end cone sleeve 001, and the head 031 is provided with a locking hole 311 for cooperating with the locking member 002; the convex ring 032 is in clearance fit within the rope end cone sleeve 001.

[0047] In an alternative embodiment, a bearing 005 is installed between the convex ring 032 and the limiting cover 004. The bearing 005 can bear the pressing force between the convex ring 032 and the limiting cover 004, and the resistance when the pulling connecting member 003 rotates relative to the rope end cone sleeve 001 and the limiting cover 004 can be reduced through the bearing 005.

[0048] See Figure 6, in an alternative embodiment, a guiding and limiting portion is provided in the keyhole 311; the guiding and limiting portion has a guiding inclined surface 301 that inclines away from the convex ring 032 along the insertion direction of the locking member 002, and a protruding portion 302 formed by the docking of two guiding inclined surfaces 301 extending inward from both ends of the keyhole 311; the locking member 002 is provided with a card slot 202 adapted to the protruding portion 302, and the locking member 002 is inserted into the keyhole 311 along the guiding inclined surface 301, and the card slot 202 is in snap-fit with the protruding portion 302, so as to prevent the locking member 002 from slipping relative to the rope end cone sleeve 001 and the pulling connecting member 003.

[0049] Furthermore, the locking member 002 includes an elastically bendable pin rod; in a state where the locking member 002 is inserted into the keyhole 311, the locking member 002 presses against the protruding portion 302, so that the convex ring 032 pushes against the limiting cover 004.

[0050] When a bearing 005 is installed between the convex ring 032 and the limiting cover 004, the elastic force of the locking member 002 rebounding can press against the protruding portion 302, and further the bearing 005 is pressed tightly between the convex ring 032 and the limiting cover 004. Refer to Figure 3 and Figure 6 , the jack 101 provided in the rope end cone sleeve 001 can be changed to a circular hole with a clearance fit or an interference fit with the locking member 002. When the locking member 002 is fitted in the jack 101, the elastic pressing action of the locking member 002 on the protruding portion 302 is more stable.

[0051] Furthermore, the jack 101 can be extended into a long strip slot hole along the axial direction of the rope end cone sleeve 001 on the projection plane perpendicular to the insertion direction of the locking member 002, and the width of the long strip slot hole gradually decreases from the middle to both ends. When the locking member 002 is not elastically bent and the pulling connecting member 003 pulls the locking member 002 in a direction approaching the limiting cover 004, the locking member 002 can be clamped at the narrower part of the long strip slot hole; when the protruding portion 302 pushes against the locking member 002 to cause the locking member 002 to bend, both ends of the locking member 002 will have adaptive deflection and can also be clamped at the narrower part of the long strip slot hole, thereby improving the circumferential positioning stability of the locking member 002 and the pulling connecting member 003 relative to the rope end cone sleeve 001.

[0052] As Figure 7As shown, in an alternative embodiment, when a plurality of jacks 101 are circumferentially spaced on the rope end cone sleeve 001, the projection of the jacks 101 on a plane perpendicular to the insertion direction of the locking member 002 extends axially away from the limit cover 004 along the rope end cone sleeve 001 and the width tapers. Among them, the locking member 002 is axially pressed between the traction connecting member 003 and the rope end cone sleeve 001 along the rope end cone sleeve 001. When the locking member 002 bears the pre-tightening force of the traction connecting member 003 and this pre-tightening force presses the locking member 002 in the direction away from the limit cover 004, the locking member 002 can be clamped at the part with a narrower width of the jack 101. In this way, the circumferential positioning stability of the locking member 002 and the traction connecting member 003 relative to the rope end cone sleeve 001 can also be improved.

[0053] The traction device provided by the embodiment of the present invention is equipped with the wire rope connecting device described in the above embodiment. The traction device may include devices driven in a traction manner such as elevators. The traction device has the technical effects of the above wire rope connecting device, which will not be elaborated here.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wire rope connection device, characterized in that: include: Rope head cone sleeve (001), locking piece (002), pulling connecting piece (003) and limiting cover (004); The pulling connection piece (003) is inserted into the rope head cone sleeve (001), and the pulling connection piece (003) has a degree of freedom to rotate relative to the rope head cone sleeve (001); The limiting cover (004) is connected to the rope head cone sleeve (001), and the limiting cover (004) is used to limit the pulling connecting member (003) from falling out of the rope head cone sleeve (001); The locking member (002) is detachably mounted on the rope head cone sleeve (001); when the locking member (002) is mounted on the rope head cone sleeve (001), the locking member (002) limits the pulling connection member (003) from rotating relative to the rope head cone sleeve (001).

2. The wire rope connection device according to claim 1, characterized in that: The rope head cone sleeve (001) is provided with a plurality of insertion holes (101) arranged at intervals along the circumferential direction, and the locking member (002) passes through the insertion holes (101) and is inserted into the pulling connection member (003).

3. The wire rope connection device according to claim 2, characterized in that: One of the insertion holes (101) is opposite to the other insertion hole (101) along the circumference of the rope head cone sleeve (001); The locking member (002) passes through the two opposite insertion holes (101), and the projection of the insertion holes (101) on a plane perpendicular to the insertion direction of the locking member (002) extends along the axial direction of the rope head cone sleeve (001).

4. The wire rope connection device according to claim 3, characterized in that: The end of the locking member (002) is provided with a limiting boss (201), and the locking member (002) is connected to a first magnet (006), and the pulling connection member (003) is connected to a second magnet (007); When the limiting boss (201) and the insertion hole (101) are aligned, the locking member (002) passes through the insertion hole (101) and the pulling connection member (003) is inserted; The first magnet (006) and the second magnet (007) interact with each other to enable the locking member (002) to move relative to the pulling connection member (003) and to cause the limiting boss (201) to be misaligned with the insertion hole (101).

5. The steel wire rope connection device according to claim 1, characterized in that: The pulling connection piece (003) is provided with an end (031) and a convex ring (032); The end head (031) and the convex ring (032) are inserted into the rope head cone sleeve (001), and the end head (031) is provided with a locking hole (311) that matches the locking member (002); The convex ring (032) is loosely fitted in the rope head cone sleeve (001).

6. The steel wire rope connection device according to claim 5, characterized in that: A bearing (005) is installed between the convex ring (032) and the limiting cover (004).

7. The steel wire rope connection device according to claim 5, characterized in that: A guide limiting portion is provided in the lock hole (311); The guide limit portion comprises a guide inclined surface (301) inclined away from the convex ring (032) along the insertion direction of the locking member (002), and a convex portion (302) formed by abutting two guide inclined surfaces (301) extending inwardly from both ends of the locking hole (311); The locking member (002) is provided with a slot (202) adapted to the protrusion (302), and the locking member (002) is inserted into the locking hole (311) along the guide slope (301) to enable the slot (202) to engage with the protrusion (302).

8. The wire rope connection device according to claim 7, characterized in that: The locking member (002) comprises an elastically bendable pin rod; When the locking member (002) is inserted into the locking hole (311), the locking member (002) presses the protruding portion (302) so that the protruding ring (032) pushes against the limiting cover (004).

9. The steel wire rope connection device according to claim 8, characterized in that: When the rope head cone sleeve (001) is provided with a plurality of insertion holes (101) spaced apart along the circumferential direction, a projection of the insertion holes (101) on a plane perpendicular to the insertion direction of the locking member (002) extends away from the limiting cover (004) along the axial direction of the rope head cone sleeve (001) and the width gradually decreases.

10. A traction device, characterized in that: The traction equipment is equipped with the wire rope connecting device according to any one of claims 1 to 9.

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