CN1580606A - Elevator steel rope connecton and its cold-extrusion shaping method and cold-extrusion device - Google Patents
Elevator steel rope connecton and its cold-extrusion shaping method and cold-extrusion device Download PDFInfo
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- CN1580606A CN1580606A CN 03152610 CN03152610A CN1580606A CN 1580606 A CN1580606 A CN 1580606A CN 03152610 CN03152610 CN 03152610 CN 03152610 A CN03152610 A CN 03152610A CN 1580606 A CN1580606 A CN 1580606A
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Abstract
This invention relates to an elevator wire rope end joint and its field koldflo and a device which applies a partial koldflo to connect the wire rope and a joint blank to one unit at site when mounting and maintaining elevators, every joint is extruded by 2-4 times with 10-20 mm width eath. The device is composed of a power operation system and an extrusion head.
Description
Technical field
The present invention relates to a kind of elevator wire rope end joint and cold-extrusion molding method and cold extrusion device, especially relate to a kind of install or safeguard at elevator on-the-spotly realize elevator wire rope end joint cold-extrusion molding method and formed jointing, and a kind of portable cold extrusion device that is used for this method.
Background technique
As shown in figure 12, when elevator was installed, elevator wire rope 2 need be connected with counterweight 18 with car 15 by joint 1, so the joint 1 of steel cord ends need be born very high thrust load.In addition, because in the installation process of elevator, because actual complicated factor, required length of steel wire rope often can not be exactly determined in advance, need could determine to connect the exact length size of required wire rope in the erecting bed, so the joint 1 of steel cord ends often needs also to make at the scene.The common structure of this on-the-spot joint of making is to adopt being connected of heart ring set, wedge shape rope sling, metal filled conical sleeve etc. and wire rope.Yet the joint volume of existing heart ring set, wedge shape rope sling structure is big, has increased the bulk of elevator connection part and transmission part, and metal filled conical sleeve needs the cast-in-site low melting alloy, complex process, and be work with torches, aspect working security, there is deficiency.
The wire rope of other industry connects and also has a kind of cylindricality compacting joint in the kind at present, but this joint mainly makes or adopt forging and pressing, punching press to make in the manufacture base with heavy large-tonnage steel wire rope gland machine by monolithic extruded mode.In Japanese patent application 2000-314089, disclose and a kind ofly can carry out elevator wire rope end joint method for processing at the scene.In the method, the extrusion equipment that adopts pumping station with extra-high voltage and extruding frock to form is finished monolithic extruded to elevator wire rope end joint at the scene.Yet, because bigger, be not easy carrying to the volume and weight of the monolithic extruded required pumping station with extra-high voltage of cylindricality compacting joint and extruding frock, its complex structure in addition, cost and cost are also higher.
Summary of the invention
Purpose of the present invention proposes a kind of cold hobbing connecting means of elevator wire rope end and formed joint and light little portable cold extrusion device thereof that is suitable for the project installation scene more just in order to overcome the existing shortcoming of the on-the-spot manufacturing technology of existing elevator wire rope joint.
In order to realize the foregoing invention purpose, the present invention proposes the cold extrusion shaped joint of a kind of elevator wire rope end, comprise: a tip side and has the wire rope joining end of attachment hole, and be inserted into the wire rope that is connected with the wire rope joining end by cold hobbing in the attachment hole, it is characterized in that: the local cold hobbing impression that shrinks in the radial depressions that has a plurality of spaces on the length of the attachment hole that is inserted with wire rope of wire rope joining end, at the inner nosepiece wall of each extrusion position steel wire of extruded cords rope that caves inward, thereby realize the firm connection of end joint.
Like this, install or the maintenance scene, wire rope and sleeve pipe are fused by the cold hobbing mode at elevator.By changing fashion of extrusion, take local cold extrusion shaped method to connect, promptly each joint is carried out the extruding of 2～4 roads, the per pass nip width is 10～20mm, thereby reaches the join strength of regulation; And helical in the off-gauge shallow type of processing in the sleeve pipe attachment hole has strengthened extruding engagement effect.Owing to reduced nip width, required extruding force is reduced greatly, this makes on-the-spot extruding become possibility.
On the other hand, the invention allows for a kind of on-the-spot cold-extrusion molding method of elevator wire rope end joint, may further comprise the steps: 1) install or safeguard on-the-spotly, an end of wire rope is inserted in the attachment hole of a joint blank at elevator; 2) install or safeguard on-the-spotly at elevator, an extrusion modling position of the part of the insertion wire rope of joint blank is placed among the pressure head die cavity of separation of a portable cold extrusion device; 3) handle portable cold extrusion device with the pressure head matched moulds, the pressure head of described matched moulds is cold extrusion shaped one local impression on this moulding position; 4) separate portable cold extrusion device pressure head die cavity, another forming part position of the part of the insertion wire rope of described joint blank is moved among the die cavity; 5) repeating step 3) and 4) up to being molded over the joint that the position of inserting wire rope has the local impression that caving inward of a plurality of spaces shrink.
At last, the invention allows for a kind of portable cold extrusion device that is used for the elevator wire rope of the moulding at the scene end joint of said method, described portable cold extrusion device is made of power-operated mechanism and squeeze head one, and described squeeze head comprises: the caliper that defines a cold hobbing working space; Be positioned at cold hobbing working space dynamic pressure headstock respect to one another and static pressure headstock, described dynamic pressure headstock is moving back and forth in the cold hobbing working space under the manipulation of power-operated mechanism, on the described static pressure headstock fixed installation caliper; Be removably mounted on the pressure head on dynamic pressure headstock and the static pressure headstock, be formed for the die cavity of extrusion modling between described pressure head, described die cavity is used for the local cold hobbing impression of the radial depressions contraction of a plurality of spaces of difference moulding on described joint.
The invention has the beneficial effects as follows, under the situation that guarantees the wire rope end join strength, reduced the required extruding force of extrusion process greatly, and make extrusion press miniaturization, light, and finish the wire rope connection in the erecting bed thereby can carry it, it is simple to connect technology, the joint volume is little, in light weight, its tensile strength approaches wire rope intensity, and end efficient can reach more than 96%, also has very high fatigue strength simultaneously.
Description of drawings
Fig. 1 is the partial cross section figure and the schematic representation of joint blank;
Fig. 2 is according to the manual cold hobbing jointing of a kind of wire rope of the present invention schematic representation;
Fig. 3 is the schematic representation of cold extrusion device according to an embodiment of the invention;
Fig. 4 is the schematic representation of cold extrusion device according to another embodiment of the invention;
Fig. 5 is according to the mounting structure schematic representation of the pressure head in the cold extrusion device of the present invention in binding clip;
Fig. 6 is the structural representation according to a kind of pressure head of cold extrusion device of the present invention, and its extruding profile is six prismatic surfaces;
Fig. 7 is the structural representation according to the another kind of pressure head of cold extrusion device of the present invention, and its extruding profile is the cylndrical surface;
Fig. 8 is the schematic representation according to the another kind of tong head in the cold extrusion device of the present invention;
Fig. 9 is the schematic representation of cold extrusion device according to another embodiment of the invention;
Figure 10 is the schematic representation according to the structure of a kind of pressure head installation according to the present invention;
Figure 11 is the schematic representation that is used for the pressure head of the different extruding profiles of having of pressure head mounting structure shown in Figure 10;
Figure 12 is the position view of elevator wire rope joint of the present invention in elevator is installed.
Embodiment
Below in conjunction with accompanying drawing and embodiment patent of the present invention is further specified.
Referring to Fig. 1, the present invention adopts the blank of a sleeve pipe as wire rope end connector 1.Have solid structure in the upper end of sleeve pipe and have outside thread, be used to connect parts such as car, counterweight or machine room machine supporting beams, the upper end of this sleeve pipe can also have structures such as double shackle, single hanger, outside thread in addition, does not show at accompanying drawing.Lower end at sleeve pipe is the hollow-core construction with an attachment hole, is used for being connected with elevator wire rope.Preferably, helical 1a in connecting endoporus processing then carries out reaming, reduces the helical height, to guarantee avoiding wire rope to produce localized crush when improving squeezing effect.Position corresponding to attachment hole top on sleeve pipe has peep hole 1b, is used to check the insertion depth of wire rope.The underpart 1c gabarit of sleeve pipe is processed into the conical surface form, with the axial stress distribution of reasonable improvement access place wire rope, improves the tensile strength of joint.Jacket exterior scribbles the extrusion position mark of a plurality of spaces.The material of swagelok can be the metallic material of tensile strength sigma=350-650MPa, specific elongation δ=20%-40%, shrinkage ψ=40%-70%, sleeve pipe is preferably with Fine Steel Casting iron or the Alloy Constructional Steel making preferably of other plasticity, chemical treatments such as phosphatization-saponification also can be further carried out in the first annealed heat treatment that waits.Preferably, the material hardness of swagelok is less than the hardness of elevator wire rope.
Referring to Fig. 2, shown elevator wire rope end joint 1 according to on-the-spot manufacture method moulding of the present invention.The recessed impression 1d that on the length of the lower end that connects with wire rope 2 of joint 1, has a plurality of spaces.The width of these impressions equates, be subjected to the cold-stamped effect and big radial contraction taken place the wire rope in the hole 2 is compressed at the position of impression sleeve pipe, preferably, the part steel wire of the wire rope 2 in attachment hole is embedded in inner tube wall in pressurized, preferably the interior helical of the off-gauge shallow type of sleeve pipe stomidium processing has further been strengthened the engagement effect of the part top layer steel wire and the internal surface of sleeve pipe of wire rope, the multiple tracks impression has fully guaranteed load-carrying properties again, thereby can bear specified thrust load.Elevator wire rope 2 can be fiber core or independent wire strand.
Referring to Fig. 3, schematically shown a embodiment according to cold extrusion device of the present invention.This cold extrusion device 33 mainly is made of manual pressure mechanism 4, hydraulic mechanism and extruding binding clip 3 one in Fig. 3.Hydraulic mechanism comprises cylinder body 5, pump oil piston 25, capping 6, parts such as oil sucting one-way valve 26, in line check valve 27, one-piece piston 28, return spring 29, scavenger valve 7.Hydraulic cylinder is a both ends open formula structure, and there is partitioning wall the centre, and the caliper of the front end of hydraulic cylinder and extruding binding clip 3 is by the formation high-pressure working chamber that is threaded, and rear end and capping 7 formation shoe cream rooms are established drainback passage and scavenger valve 7 between hyperbaric chamber and the shoe cream room.During backhaul, open scavenger valve 7, hyperbaric chamber hydraulic oil flows back to shoe cream room, and piston automatically resets.Extruding binding clip 3 by the caliper that defines a cold hobbing working space, the dynamic pressure headstock 8 that is positioned at the cold hobbing working space and static pressure headstock, be installed in parts such as pressure head 12 on the pressing head seat and position structure and constitute.Referring to Fig. 3 and Fig. 5, position structure comprises knurled screw 9, eccentric catch 10 and positioning block 11, and pressure head 12 is detachably mounted on the dynamic pressure headstock 8 by above-mentioned position structure.The static pressure headstock is arranged on an end of the cold hobbing working space of caliper regularly, and dynamic pressure headstock 8 is connected on the one-piece piston, and is relative with the static pressure headstock, and can move with respect to the static pressure headstock under the drive of piston.Processed dovetail groove in dynamic pressure headstock 8 and the static pressure headstock.Pressure head 13 cross sections macroscopic view gabarit is trapezoidal, and be positioned piece 11 and eccentric catch 10 are fixed in the dovetail groove of dynamic pressure headstock 8 and static pressure headstock.Like this, the pressure head that can change different size and profile of cold extrusion device of the present invention.Shown in Fig. 6 and 7, pressure head 12 working surface 12a are semi-cylindrical or multi-prismatic surface.The width of pressure head is preferably between 5-30mm, more preferably between the 10-20mm.So, between the relative pressure head that is installed on dynamic pressure headstock 8 and the static pressure headstock, be formed for the die cavity of extrusion modling.
Cold extrusion die among the present invention is separated into pressure head 12 and pressing head seat, and pressure head 12 adopts the special dies material to make, and volume is less, and weight is lighter, and pressing head seat adopts common Fine Steel Casting iron processing.Adopt the advantage of this structure to be: often to need to carry the mould of plurality of specifications during field operation, adopt this structure only need carry various pressure heads, reduced the weight and volume of matching component greatly; It is very convenient to change; Saved the die material expense; The pressure head of small volume helps heat treatment.
Fig. 4 has shown the schematic representation of cold extrusion device 34 according to another embodiment of the invention.The structure of this cold extrusion device 34 is identical with structure among the embodiment of Fig. 3 basically, the mark of wherein identical parts is identical, its something in common just is not described at this, its difference is, the cancellation of the cold extrusion device 34 among Fig. 4 manual pressure mechanism, and replace with the very compact power driving mechanism 13 of structure.
Below, in conjunction with cold extrusion device and the structure of Fig. 3 of the present invention and Fig. 4, the cold-extrusion molding method that forms elevator wire rope end joint of the present invention is described.
At first,, behind the sleeve pipe blank stomidium that the terminal insertion of wire rope to be connected is prefabricated, it is reinstalled in the die cavity of cold hobbing facility, alignd with the pressure head end face in the threshold marker position, aperture of sleeve pipe by predeterminated position in the erecting bed of elevator.
Pull extrusion press depression bar or starting electrical machinery (for power type), the driving dynamic head carries out lateral extrusion along the inwall of caliper cold hobbing working space to sleeve pipe and wire rope, stop pump oil behind the matched moulds, about pressurize one minute, open scavenger valve, make piston reset, when the enough sleeve pipes of die cavity space insert, close scavenger valve, so on sleeve pipe, form one impression.
Mobile sleeve pipe and wire rope are proceeded to push to next extrusion position at interval next time, and until the impression that waits width that forms a plurality of spaces along the extruding of sleeve pipe one end length direction, the cross section of extruding place is polygon or circle etc.
So, just can be by above-mentioned steps in the elevator erecting bed, moulding elevator wire rope end joint 2 easily, and wherein each joint carries out the extruding of 2～4 roads, perhaps more multiple tracks extruding, the per pass nip width can be 5-30mm, is preferably 10～20mm.Preferably,, strengthened extruding engagement effect, required extruding force is reduced greatly wire rope owing in the sleeve pipe attachment hole, process helical in off-gauge shallow type.So guaranteeing to reduce the quantity of nip width and impression under the specified joint axial tensile strength.
In addition, for the situation of the elevator wire rope end joint that forms the different-diameter specification at the scene, in construction process technological scheme of the present invention, the pressure head mould of the corresponding a kind of different size of the wire rope of each diameter specifications.So before above-mentioned steps, can also change corresponding pressure head at the elevator wire rope of specific standard at the scene.For the cold extrusion device in Fig. 3 and 4, the method that removes and installs mould is as follows: unscrew knurled screw 9, rotate eccentric catch 10, draw off positioning block 11 and pressure head 12 in the dovetail groove.Pressure head to be replaced is pushed in the dovetail groove, and the positioning block 11 of packing into rotates eccentric catch 10, and its long end is pressed on the positioning block 11, tightens knurled screw 9.
Fig. 8 is the schematic representation according to the another kind of tong head in the cold extrusion device of the present invention, wherein caliper is split, the part caliper 22 that static pressure head will be installed by bearing pin 23 connects and composes one with the part caliper 24 that is installed on the cylinder body 5, thereby forms the cold hobbing die cavity between the dynamic head on static pressure head and the dynamic pressure headstock.The static pressure headstock can be integrally formed with this part caliper 22 on the part caliper 22, also can be fixedly mounted on the part caliper.By dividing the caliper of body structure above having, make the operator be convenient to change and safeguard pressing head seat and pressure head more.
Fig. 9 has shown the schematic representation of cold extrusion device according to still another embodiment of the invention.The structure of the mode of structure of this cold extrusion device and extruding binding clip is identical with structure among the embodiment of Fig. 3 basically, its something in common just is not described at this, its difference is, cold extrusion device among Fig. 9 is formed by a power screw system and the first body of crush inhury, by the dynamic pressure headstock in the screw rod 20 driving extruding binding clips of power screw system.In Fig. 9, do not demonstrate other parts and structure in the power screw system of being habitually practised in the technology of the present invention field.
Utilize the method for carrying out in-place forming elevator wire rope end joint of above-mentioned portable cold extrusion device shown in Figure 9 identical, just be not described in detail at this with the operating process of the cold extrusion device of Fig. 3 and Fig. 4.
Figure 10 has shown according to the present invention the schematic representation of another kind of pressure head mounting structure.Different with mounting structure shown in Figure 5, in Figure 10, pressure head 12 is placed in the cavity of pressing head seat 8, and is fixing by compressing tablet 21.
Figure 11 is the schematic representation that is used for the pressure head with different operating face and attachment face of pressure head mounting structure shown in Figure 10, wherein (1) pressure head is column working, cylinder attachment face, (2) pressure head is column working, flute profile attachment face, (3) pressure head is column working, V-type attachment face, (4) pressure head is six prismatic working surfaces, cylinder attachment face, and (5) pressure head is that six prismatic working surfaces, flute profile attachment face and (6) pressure head are six prismatic working surfaces, V-type attachment face.
Embodiment's recited above content and accompanying drawing are only as a kind of signal of the present invention rather than a kind of restriction; in protection scope of the present invention, the those of ordinary skill in the technology of the present invention field can have been done many distortion, variation and improvement in detail to the foregoing description on this basis.
Claims (18)
1, the cold extrusion shaped joint of a kind of elevator wire rope end, comprise: a tip side and has the wire rope joining end of attachment hole, and be inserted into the wire rope that is connected with the wire rope joining end by cold hobbing in the attachment hole, it is characterized in that: the local cold hobbing impression that on the partial-length that is inserted with wire rope of wire rope joining end, has the radial depressions contraction of a plurality of spaces, at the cave inward steel wire of extruded cords rope of each extrusion position inner nosepiece wall, thereby realize the firm connection of end joint.
2, cold extrusion shaped joint according to claim 1 is characterized in that, with the crimping section of wire rope, the inner wall surface of the attachment hole of described joint forms to be meshing with each other with the top layer steel wire of wire rope and is connected.
3, cold extrusion shaped joint according to claim 1 is characterized in that, the wall at the top of the attachment hole of joint is provided with peep hole, is used to observe the insertion depth of wire rope.
4, cold extrusion shaped joint according to claim 1 is characterized in that, the quantity of the impression of space is 2-4 on joint, and each impression has identical width, and described width is 10-20mm.
5, cold extrusion shaped joint according to claim 1, it is characterized in that, the material of described joint is that tensile strength is that 350-650MPa, specific elongation are that 20%-40%, shrinkage are the metallic material of 40%-70%, and the hardness of described material is less than the hardness of wire rope.
6, a kind of on-the-spot cold-extrusion molding method of elevator wire rope end joint may further comprise the steps:
1) installs or safeguard on-the-spotly at elevator, an end of wire rope is inserted in the attachment hole of a joint blank;
2) install or safeguard on-the-spotly at elevator, an extrusion modling position of the part of the insertion wire rope of joint blank is placed among the pressure head die cavity of separation of a portable cold extrusion device;
3) handle portable cold extrusion device with the pressure head matched moulds, the pressure head of described matched moulds is cold extrusion shaped one local impression on this moulding position;
4) separate portable cold extrusion device pressure head die cavity, another forming part position of the part of the insertion wire rope of described joint blank is moved among the die cavity;
5) repeating step 3) and 4) up to being molded over the joint that the part of inserting wire rope has the local impression that caving inward of a plurality of spaces shrink.
7, a kind of as on-the-spot cold-extrusion molding method as described in the claim 6, it is characterized in that: in step 1), also comprise: wire rope is inserted in the attachment hole till can seeing wire rope from a peep hole that is arranged on the attachment hole top of joint blank.
8, a kind of as on-the-spot cold-extrusion molding method as described in the claim 6, it is characterized in that: in step 2) and 4) in also comprise step: will align with the pressure head end face of cold extrusion device at the extruding mark on the shaping position on the joint blank.
9, a kind of as on-the-spot cold-extrusion molding method as described in the claim 6, it is characterized in that: in step 2) before, also comprise step: according to the model of the elevator wire rope at scene, change pressure head with the corresponding portable cold extrusion device of model of elevator wire rope.
10, a kind of as on-the-spot cold-extrusion molding method as described in the claim 6, it is characterized in that: the quantity of the local impression of the space of moulding is 2-4 on joint in step 5), and each impression has identical width, and described width is 10-20mm.
11, a kind of as on-the-spot cold-extrusion molding method as described in the claim 6, it is characterized in that: the inner wall surface of the attachment hole of described joint blank is smooth surface or non-smooth surface.
12, a kind of as on-the-spot cold-extrusion molding method as described in the claim 6, it is characterized in that: the gabarit of the terminal part that described joint blank connects with wire rope has the conical surface form.
13, a kind of method of claim 6 that is used for is to make the portable cold extrusion device of elevator wire rope end joint at the scene, described portable cold extrusion device is become one by power-operated mechanism and squeeze head and constitutes, and described squeeze head comprises: the caliper that defines a cold hobbing working space; Be positioned at cold hobbing working space dynamic pressure headstock respect to one another and static pressure headstock, described dynamic pressure headstock is moving back and forth in the cold hobbing working space under the manipulation of power-operated mechanism, and described static pressure headstock is fixedly installed on the caliper; Be installed in the pressure head on dynamic pressure headstock and the static pressure headstock removably respectively, be formed for the die cavity of extrusion modling between described pressure head, described die cavity is used for the local cold hobbing impression of the radial depressions contraction of a plurality of spaces of difference moulding on described joint.
14, a kind of as portable cold extrusion device as described in the claim 13, it is characterized in that: described power-operated mechanism comprises a power system, hydraulic mechanism, power system is artificial manual pressure mechanism or power driving mechanism, hydraulic mechanism is a high-pressure plunger pump, comprise cylinder body, pump oil piston, capping, oil sucting one-way valve, in line check valve, one-piece piston, scavenger valve, wherein said piston is connected with described dynamic pressure headstock.
15, a kind of as portable cold extrusion device as described in the claim 13, it is characterized in that: described power-operated mechanism comprises a power system, screw-drive mechanism, power system is artificial manual pressure mechanism or power driving mechanism, and screw-drive mechanism is connected with described dynamic pressure headstock by a screw rod.
16, a kind of as portable cold extrusion device as described in the claim 13, it is characterized in that: the pressure head of described dynamic pressure headstock and static pressure headstock removably is fixed on the pressing head seat by dovetail groove, positioning block and catch.
17, a kind of as portable cold extrusion device as described in the claim 13, it is characterized in that: described pressure head can have the different size corresponding to the wire rope of multiple different-diameter specification, the cross section gabarit of the attachment face of described pressure head is trapezoidal, flute profile, cylindrical or V-arrangement, working surface is semi-cylindrical or multi-prismatic surface, and the width of described pressure head is 5-30mm.
18, a kind of as portable cold extrusion device as described in the claim 13, it is characterized in that: described caliper is for dividing a body structure, and the part caliper that static pressure head will be installed by bearing pin connects and composes one with the part caliper that is installed on the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031526101A CN1299024C (en) | 2003-08-01 | 2003-08-01 | Elevator steel rope connecton and its cold-extrusion shaping method and cold-extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031526101A CN1299024C (en) | 2003-08-01 | 2003-08-01 | Elevator steel rope connecton and its cold-extrusion shaping method and cold-extrusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1580606A true CN1580606A (en) | 2005-02-16 |
| CN1299024C CN1299024C (en) | 2007-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031526101A Expired - Fee Related CN1299024C (en) | 2003-08-01 | 2003-08-01 | Elevator steel rope connecton and its cold-extrusion shaping method and cold-extrusion device |
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| CN (1) | CN1299024C (en) |
Cited By (9)
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| CN102359546A (en) * | 2011-10-24 | 2012-02-22 | 朱广慧 | Steel rope separating device for checking elevator limiter |
| CN102896262A (en) * | 2012-09-06 | 2013-01-30 | 桐乡市隆盛精密机械有限公司 | Machining method of piston seat blank of high-silicon aluminum alloy piston |
| CN103318727A (en) * | 2013-05-27 | 2013-09-25 | 宣城市安华机电设备有限公司 | Suspension device of elevator trailing cable or compensating cable utilizing steel wire ropes as bearing parts |
| CN104370181A (en) * | 2014-10-16 | 2015-02-25 | 苏州莱茵电梯制造有限公司 | Rope fastening device |
| CN105090349A (en) * | 2015-08-25 | 2015-11-25 | 李先登 | Steel wire rope spiral noose and knotting method thereof |
| CN105134875A (en) * | 2015-06-16 | 2015-12-09 | 李先登 | Steel wire rope spiral knot type connector machining method |
| CN108918311A (en) * | 2018-05-24 | 2018-11-30 | 巨力索具股份有限公司 | A kind of Brown's test attachment device and processing technology |
| CN113236711A (en) * | 2021-04-30 | 2021-08-10 | 神华准格尔能源有限责任公司 | End connection for a steel cord and method of making a steel cord end connection |
| CN113843590A (en) * | 2021-10-08 | 2021-12-28 | 江苏海力达机电制造有限公司 | Hexagonal forming process for oil drain connecting rod connecting piece of motorcycle hoister |
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| JP2651800B2 (en) * | 1994-09-12 | 1997-09-10 | 耕市 長畑 | Cableway fixture |
| JPH1137224A (en) * | 1997-07-18 | 1999-02-12 | Mitsubishi Electric Corp | Rope terminal device and manufacture thereof |
| KR100272468B1 (en) * | 1998-02-20 | 2000-11-15 | 장병우 | Joint apparatus between elevator car and its rope. |
| JP3747717B2 (en) * | 1999-11-17 | 2006-02-22 | フジテック株式会社 | Rope connection structure |
| CN2505643Y (en) * | 2001-09-21 | 2002-08-14 | 黄善康 | Ending loop bar for wire rope |
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| CN102359546B (en) * | 2011-10-24 | 2013-02-13 | 朱广慧 | Steel rope separating device for checking elevator limiter |
| CN102359546A (en) * | 2011-10-24 | 2012-02-22 | 朱广慧 | Steel rope separating device for checking elevator limiter |
| CN102896262A (en) * | 2012-09-06 | 2013-01-30 | 桐乡市隆盛精密机械有限公司 | Machining method of piston seat blank of high-silicon aluminum alloy piston |
| CN102896262B (en) * | 2012-09-06 | 2016-04-06 | 桐乡市隆盛精密机械有限公司 | The processing method of the piston seat blank of high-silicon piston |
| CN103318727B (en) * | 2013-05-27 | 2016-03-09 | 宣城市安华机电设备有限公司 | Take steel rope as the elevator trailing cable of supporting part or the suspension gear of compensated cable |
| CN103318727A (en) * | 2013-05-27 | 2013-09-25 | 宣城市安华机电设备有限公司 | Suspension device of elevator trailing cable or compensating cable utilizing steel wire ropes as bearing parts |
| CN104370181A (en) * | 2014-10-16 | 2015-02-25 | 苏州莱茵电梯制造有限公司 | Rope fastening device |
| CN105134875A (en) * | 2015-06-16 | 2015-12-09 | 李先登 | Steel wire rope spiral knot type connector machining method |
| CN105090349A (en) * | 2015-08-25 | 2015-11-25 | 李先登 | Steel wire rope spiral noose and knotting method thereof |
| CN105090349B (en) * | 2015-08-25 | 2017-11-28 | 李先登 | The knotting method of steel wire rope spiral noose |
| CN108918311A (en) * | 2018-05-24 | 2018-11-30 | 巨力索具股份有限公司 | A kind of Brown's test attachment device and processing technology |
| CN113236711A (en) * | 2021-04-30 | 2021-08-10 | 神华准格尔能源有限责任公司 | End connection for a steel cord and method of making a steel cord end connection |
| CN113843590A (en) * | 2021-10-08 | 2021-12-28 | 江苏海力达机电制造有限公司 | Hexagonal forming process for oil drain connecting rod connecting piece of motorcycle hoister |
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