CN109352576A - A kind of clamping device for steel cable - Google Patents
A kind of clamping device for steel cable Download PDFInfo
- Publication number
- CN109352576A CN109352576A CN201811307421.3A CN201811307421A CN109352576A CN 109352576 A CN109352576 A CN 109352576A CN 201811307421 A CN201811307421 A CN 201811307421A CN 109352576 A CN109352576 A CN 109352576A
- Authority
- CN
- China
- Prior art keywords
- gripping sleeve
- cone body
- wirerope
- adapter
- half cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B25/00—Implements for fastening, connecting or tensioning of wire or strip
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Electric Cable Installation (AREA)
Abstract
The present invention relates to a kind of clamping device for steel cable, the wirerope being mainly used in wind tunnel balance calibration frame loading system clamps, the diameter range of general clamping steel wire rope is 0.5mm~3mm, and the design form of the device can also be applied to other clampings for carrying bigger wirerope.The clamping device for steel cable is made of adapter, half cone body bushing and gripping sleeve, and wherein adapter one end is used to connect the loading head of wind-tunnel balance, and the other end is used to compress half cone body bushing；Gripping sleeve leading portion is location hole and threaded hole, and back segment is internal taper hole, and adapter compression end is threaded through gripping sleeve leading portion threaded hole screw-in, the male cone (strobilus masculinus) cooperation of back segment internal taper hole and half cone body bushing；Half cone body bushing is total to two pieces, and wirerope is embraced in centre.Adapter compression end persistently compresses two half cone body bushings during screwing in taper sheath, and due to being limited by taper sheath, the inside extruded cords rope of two half cone body bushings clamps wirerope.
Description
Technical field
The present invention relates to a kind of clamping device for steel cable, the steel wire being mainly used in wind tunnel balance calibration frame loading system
Rope clamp is tight, and the diameter range of general clamping steel wire rope is 0.5mm~3mm, and the design form of the device can also be applied to other and hold
Carry the clamping of bigger wirerope.
Background technique
Wirerope is worked out by high-tensile steel wires, has many advantages, such as that easy to use, tensile strength is big, absorbable vibration.
It is widely used in the occasions such as lifting equipment, passenger and freight cableway and hoist engine, in the loading system of wind tunnel balance calibration frame, commonly uses
Wirerope connects loading head and scale pan to transmit loading force.
Under a stretching force, on the one hand length of cable in clamped condition will prevent the excessive generation mechanical damage of clamping force
And produce fracture, on the other hand should keep wirerope grip conditions well prevents from generating abseiling because of insufficient clamping force again.Mesh
The clamping means of preceding wirerope mainly have cast set connection and mechanical clamp chucking method.Cast set connection is by steel cord ends
Wirerope scatters, and is then injected into the alloy of fusing, and wirerope and connector combine together after cooling.Mechanical clamp chucking method be by
Wirerope is clamped on fixture, and wherein there are many forms for fixture, can be made according to the actual situation.Cast set connection safety
Reliably, but professional and professional tool are needed, is generally used for the fixed occasion such as bridge rigging；Mechanical clamp folder
It enforces the law there is be easy to causeing to clamp the problems such as surface damage, clamping force not enough cause steel wire iope slippage, but its application is cleverer
It is living, adjustable length and clamping force.
Wind tunnel balance calibration frame is as calibration facility, and precision and accuracy requirement are relatively high, and the wirerope diameter used also compares
It is smaller, it is poor to disposition in the past usually using steel wire buckle or monoblock type gripping sleeve clamping steel wire rope, it is easy to skid, it cannot be guaranteed that
The theory orientation in direction and power that wirerope tenses is easy to produce load accuracy error within a certain error range.
Summary of the invention
Technology of the invention solves the problems, such as: overcoming the shortcomings of existing calibrated mount wirerope tensioning technique, has invented one kind
Clamping device for steel cable, the device carry out positioning and clamping using the conical surface, and centering error and clamping force can meet requirement.
The wirerope clamp segment of the device is all contacted with wirerope, does not have discontinuous connection face, and clamping force is made uniformly to be applied to clamping
On the wirerope of section, it is not easy to damage wirerope.
The technical solution of the invention is as follows:
There is provided a kind of clamping device for steel cable, it is characterised in that: including adapter and 2 half cone body bushings and gripping sleeve；
The inner hole of gripping sleeve includes positioning section, thread segment and taper hole section；
2 hemicone bushing combinations are cone, and cone has along axis for the through-hole across wirerope, and cone is packed into folder
Fixed taper hole section, cone are consistent with the taper of taper hole section；
Adapter has through-hole along axis, and the compression end of adapter can screw in the thread segment of gripping sleeve and to taper hole section
Small end compresses 2 half cone body bushings.
A kind of method using the clamping device for steel cable clamping steel wire rope is provided simultaneously, clamping step is as follows:
(1) pretightning force applied required for being gone out according to the clamping force calculation of required offer, and then determine torque wrench setting
Torque value；
(2) 2 half cone body bushings are packed into the taper hole section of gripping sleeve according to the parallel relationship of plane；
(3) wirerope is penetrated to the through-hole among the cone of 2 half cone body bushings composition；
(4) compression end of adapter is screwed in the thread segment of gripping sleeve, until reaching the setting value of torque wrench；
(5) change-over terminal of adapter is connected on the loading head of wind-tunnel balance.
Preferably, the compression end of the adapter screws in during the thread segment of gripping sleeve, persistently compresses 2 hemicone linings
Set, moves it along axis, since the taper hole section by gripping sleeve is limited, the inside extruded cords rope of 2 half cone body bushings, from
And realize the clamping of wirerope.
Preferably, the clamping device for steel cable is higher than the load(ing) point positioning section of adapter and the concentricity of wirerope
Or it is equal to 7 grades, and then guarantee the relative positional accuracy that load(ing) point and wirerope are corresponded on wind-tunnel balance loading head.
Preferably, the load(ing) point positioning section of adapter and the concentricity of gripping sleeve positioning section are at 6 grades or more；Gripping sleeve
Taper hole section and the concentricity of adapter positioning section are at 6 grades or more.
Preferably, the material selection copper alloy or aluminium alloy of two half cone body bushings.
Preferably, when 2 half cone body bushings are compacted to diameter minimum, the diameter D2 of through-hole diameter D1min and wirerope
Relationship meet: D1min=0.9*D2.
Preferably, gripping sleeve taper hole section and the cone angle of 2 half cone body bushings meet following relationship:
α/2=arctan (μ 2- μ 1)/(μ 2* μ 1+1)
In formula, friction factor of the μ 1 between half cone body bushing male cone (strobilus masculinus) and gripping sleeve taper hole section, μ 2 is wirerope and half
Friction factor between conical liner inner hole.
Preferably, the middle section of adapter is hexagonal prisms, is cooperated with torque wrench；The leading portion of gripping sleeve is hexagonal prisms section, folder
Tightly on bench vice.
Preferably, the pretightning force applied required for being gone out according to the clamping force calculation of required offer, and then determine torque wrench
The torque value of setting, the pretightning force Fa needed for wirerope clamps meet following relationship:
Fa=[T* (α/2 μ 1*cos α/2+sin)]/[μ 2* (α/2 cos α/2+ μ 1*sin)]
In formula, friction factor of the μ 1 between half cone body bushing male cone (strobilus masculinus) and gripping sleeve taper hole section；μ 2 is wirerope and half
Friction factor between conical liner inner hole；T is maximum load load；α is the cone of gripping sleeve taper hole section and 2 half cone body bushings
Angle.
Compared with the prior art, the invention has the advantages that:
(1) present invention devises a kind of clamping device for steel cable applied to wind tunnel balance calibration frame loading system, clamps
There is large increase than before in terms of power and centering precision；
(2) two half cone body bushings that the present invention designs hold the form of wirerope tightly, are clamped by the way of face contact,
While guaranteeing clamping force, damage of the fixture to wirerope is effectively reduced.
Detailed description of the invention
Fig. 1 is the cross-sectional view of clamping device for steel cable front view；
Fig. 2 is the left view of clamping device for steel cable；
Fig. 3 is the cross-sectional view of adapter front view；
Fig. 4 is the left view of adapter；
Fig. 5 is the front view of half cone body bushing；
Fig. 6 is the left view of half cone body bushing；
Fig. 7 is the cross-sectional view of gripping sleeve front view；
Fig. 8 is the left view of gripping sleeve；
Fig. 9 is clamping device for steel cable and exterior part connection schematic diagram.
Specific embodiment
The present invention is discussed in detail below in conjunction with attached drawing:
As depicted in figs. 1 and 2, which is assembly, by 1,2 half cone body bushing 2 of adapter and folder
Fixed 3 are constituted.Wherein 2 half cone body bushings 2 are cone according to the composition of relations that plane 23 is parallel to each other, and cone has along axis
For passing through the through-hole of wirerope, cone is packed into the taper hole section 33 of gripping sleeve 3, and cone is consistent with the taper of taper hole section 33.Switching
The compression end 14 of first 1 right end screws in the thread segment 32 of gripping sleeve 3, to compress 2 half cone body bushings 2, holds wirerope tightly.Steel wire
The centering precision of rope is by the load(ing) point positioning section 12 and gripping sleeve positioning section 13 of adapter 1, the taper hole section 33 of gripping sleeve 3 and turns
The concentricity of connector positioning section 31 guarantees.
As shown in figure 3,1 right end of adapter is compression end 14 and gripping sleeve positioning section 13, the thread segment of gripping sleeve 3 is screwed in
32, guarantee to turn simultaneously by the cooperation of gripping sleeve positioning section 13 and adapter positioning section 31 for compressing 2 half cone body bushings 2
Concentricity between connector 1 and gripping sleeve 3；1 other end of adapter is change-over terminal 11, for screwing in the loading head of wind-tunnel balance,
The location hole of load(ing) point positioning section 12 and wind-tunnel balance loading head cooperates the position to guarantee load(ing) point and clamping device for steel cable
Precision.As shown in figure 4, the middle section 15 of adapter 1 is designed as hexagonal prisms section, cooperate with torque wrench.
There is a semicylindrical opening 22 among half cone body bushing 2 as shown in Figure 5, for across wirerope, the conical surface of the part
21 taper is consistent with the taper of taper hole section 33 of gripping sleeve 3.
As shown in fig. 6, half cone body bushing 2 is not stringent hemicone, the plane 23 on the part left side is relative to centre
Datum level has biased 0.1mm.
2 half cone body bushings 2, which are combined into, opens apertured cone structure, the taper of cone and the cone of gripping sleeve 3 along axis
The matching of 33 taper of hole, cone structure have through-hole along axis, and the diameter of through-hole is D1.The process of gripping sleeve 3 is screwed in adapter 1
In, 2 half cone body bushings 2 are compressed to the inside of gripping sleeve 3, the diameter D1 of through-hole is gradually reduced, until wirerope is clamped.
When 2 half cone body bushings 2 are compacted to D1 value minimum, the relationship of the diameter D2 of D1min and wirerope meets: D1min=0.9*
D2 guarantees that the rupture pull force of wirerope does not have too big loss while wirerope clamps.
As shown in fig. 7, the leading portion of gripping sleeve 3 is the cooperation of gripping sleeve positioning section 13 of adapter positioning section 31 and adapter 1；
Middle section is threaded hole, for screwing in the compression end 14 of adapter 1；Back segment is taper hole 33, the conical surface 21 of taper and half cone body bushing 2
It is identical.
As shown in figure 8, the leading portion 34 of 3 outer surface of gripping sleeve is designed as hexagonal prisms section, to be clamped on bench vice.
Wirerope fastening: two half cone body bushings 2 are packed into the cone of gripping sleeve 3 according to the parallel relationship of mid-plane 23
There is certain gap behind hole 33, among the two, pressing force stepless action is made on a steel cord by the even variation in gap when clamping.
There is cylindrical hole on two 2 centers of half cone body bushing after assembly, wirerope can be passed through.The compression end 14 of adapter 1 is tightened
When squeeze two half cone body bushings 2, make it axially movable, under the limitation of 3 conical surface 33 of gripping sleeve, the two to centre squeeze will
Wirerope compresses.
The outer surface middle section 15 of adapter 1 is set as hexagonal prisms, cooperates with torque wrench, convenient for tightening.Outside gripping sleeve 3
Hexagonal prisms section is arranged in surface forward sections 34, for being clamped in bench vice.Two hexagonal prisms can be interchanged, and operator can be according to behaviour
Make convenience selection rotation adapter 1 or gripping sleeve 3.Rotate adapter 1 apply pretightning force Fa and wirerope bear load T it
Between relationship:
Fa=[T* (α/2 μ 1*cos α/2+sin)]/[μ 2* (α/2 cos α/2+ μ 1*sin)]
In formula, friction factor of the μ 1 between 2 male cone (strobilus masculinus) 21 of half cone body bushing and gripping sleeve taper hole section 33；μ 2 is wirerope
(B) friction factor between 2 inner hole 22 of half cone body bushing；α is the cone of 3 taper hole section 33 and 2 half cone body bushing 2 of gripping sleeve
Angle.
The pretightning force applied required for loadometer calculates is born according to wirerope in actual use, and then determines torque wrench
The torque value of setting.
The material selection copper alloy or aluminium alloy of two half cone body bushings 2, to increase two half cone body bushings 2 and wirerope
Frictional force, realize preferably hold tightly effect.
The present invention realizes higher centering precision, the load(ing) point positioning section 12 and wind-tunnel balance of adapter 1 using the conical surface
Location hole cooperation on the load(ing) point of loading head, the load(ing) point positioning section 12 and 13 concentricity of gripping sleeve positioning section of adapter 1 are 6
Class precision；The taper hole section 33 of gripping sleeve 3 and the concentricity of adapter positioning section 31 are 6 class precisions；The gripping sleeve of adapter 1 positions
Section 13 and the adapter positioning section 31 of gripping sleeve 3 cooperate.Due to two half cone body bushings 2 and gripping sleeve 3 during clamping
Matching relationship, two 2 automatic capturings of half cone body bushing, and then guarantee the position of load(ing) point on wirerope and wind-tunnel balance loading head
Set relationship.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (10)
1. a kind of clamping device for steel cable, it is characterised in that: including adapter (1) and 2 half cone body bushings (2) and gripping sleeve
(3)；
The inner hole of gripping sleeve (3) includes positioning section (31), thread segment (32) and taper hole section (33)；
2 half cone body bushing (2) groups are combined into cone, and cone has along axis for the through-hole across wirerope, and cone is packed into folder
The taper hole section (33) of fixed (3), cone are consistent with the taper of taper hole section (33)；
Adapter (1) has through-hole along axis, and the compression end (14) of adapter (1) can screw in the thread segment of gripping sleeve (3)
(32) and to the small end of taper hole section (33) 2 half cone body bushings (2) are compressed.
2. a kind of method using clamping device for steel cable clamping steel wire rope described in claim 1, which is characterized in that clamp step
It is rapid as follows:
(1) pretightning force applied required for being gone out according to the clamping force calculation of required offer, and then determine the torsion of torque wrench setting
Square value；
(2) 2 half cone body bushings (2) are packed into the taper hole section (33) of gripping sleeve (3) according to the parallel relationship of plane (23)；
(3) wirerope (B) is penetrated to the through-hole among the cone of 2 half cone body bushings (2) composition；
(4) thread segment (32) that the compression end (14) of adapter (1) is screwed in gripping sleeve (3), until reaching setting for torque wrench
Definite value；
(5) change-over terminal (11) of adapter (1) is connected on the loading head (A) of wind-tunnel balance.
3. clamping device for steel cable as described in claim 1, which is characterized in that the compression end (14) of the adapter (1) is revolved
During the thread segment (32) for entering gripping sleeve (3), persistently compress 2 half cone body bushings (2), move it along axis, due to by
To the limitation of the taper hole section (33) of gripping sleeve (3), the inside extruded cords rope of 2 half cone body bushings (2), to realize wirerope
It clamps.
4. clamping device for steel cable as described in claim 1, which is characterized in that the clamping device for steel cable makes adapter
(1) concentricity of load(ing) point positioning section (12) and wirerope is greater than or equal to 7 grades, and then guarantees wind-tunnel balance loading head (A)
The relative positional accuracy of upper corresponding load(ing) point and wirerope (B).
5. clamping device for steel cable as claimed in claim 4, which is characterized in that the load(ing) point positioning section (12) of adapter (1)
Concentricity with gripping sleeve positioning section (13) is at 6 grades or more；The taper hole section (33) and adapter positioning section (31) of gripping sleeve (3)
Concentricity at 6 grades or more.
6. clamping device for steel cable as described in claim 1, which is characterized in that the material selection of two half cone body bushings (2)
Copper alloy or aluminium alloy.
7. clamping device for steel cable as described in claim 1, which is characterized in that when 2 half cone body bushings (2) are compacted to diameter
When minimum, the relationship of the diameter D2 of through-hole diameter D1min and wirerope meets: D1min=0.9*D2.
8. clamping device for steel cable as described in claim 1, which is characterized in that gripping sleeve (3) taper hole section (33) and 2 half cones
The cone angle of body bushing (2) meets following relationship:
α/2=arctan (μ 2- μ 1)/(μ 2* μ 1+1)
In formula, friction factor of the μ 1 between half cone body bushing (2) male cone (strobilus masculinus) (21) and gripping sleeve taper hole section (33), μ 2 is steel wire
The friction factor restricted (B) between half cone body bushing (2) inner hole (22).
9. clamping device for steel cable as described in claim 1, which is characterized in that the middle section (15) of adapter (1) is hexagonal prisms,
Cooperate with torque wrench；The leading portion (34) of gripping sleeve (3) is hexagonal prisms section, is clamped on bench vice.
10. clamping device for steel cable as described in claim 1, which is characterized in that gone out according to the clamping force calculation of required offer
The pretightning force of required application, and then determine the torque value of torque wrench setting, the pretightning force Fa needed for wirerope clamps meets
Following relationship:
Fa=[T* (α/2 μ 1*cos α/2+sin)]/[μ 2* (α/2 cos α/2+ μ 1*sin)]
In formula, friction factor of the μ 1 between half cone body bushing (2) male cone (strobilus masculinus) (21) and gripping sleeve taper hole section (33)；μ 2 is steel wire
The friction factor restricted (B) between half cone body bushing (2) inner hole (22)；T is the maximum load load applied to wirerope；α is
The cone angle of gripping sleeve (3) taper hole section (33) and 2 half cone body bushings (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307421.3A CN109352576A (en) | 2018-11-05 | 2018-11-05 | A kind of clamping device for steel cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307421.3A CN109352576A (en) | 2018-11-05 | 2018-11-05 | A kind of clamping device for steel cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109352576A true CN109352576A (en) | 2019-02-19 |
Family
ID=65344264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811307421.3A Pending CN109352576A (en) | 2018-11-05 | 2018-11-05 | A kind of clamping device for steel cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109352576A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441022A (en) * | 2019-07-01 | 2019-11-12 | 大连理工大学 | A kind of connection and measuring device |
| CN111975700A (en) * | 2020-08-31 | 2020-11-24 | 高菲菲 | Steel strand anchor cable pressing device for coal mine |
| CN112539684A (en) * | 2020-12-22 | 2021-03-23 | 中国航天空气动力技术研究院 | Steel wire rope clamp and application thereof |
| CN112763310A (en) * | 2020-11-06 | 2021-05-07 | 北京工业大学 | Clamping device for tensile test of tungsten wire rope for single crystal furnace |
| CN113399198A (en) * | 2021-06-21 | 2021-09-17 | 安徽珂洁日用品有限公司 | Stainless steel wire film coating device for medical instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441022A (en) * | 2019-07-01 | 2019-11-12 | 大连理工大学 | A kind of connection and measuring device |
| CN111975700A (en) * | 2020-08-31 | 2020-11-24 | 高菲菲 | Steel strand anchor cable pressing device for coal mine |
| CN112763310A (en) * | 2020-11-06 | 2021-05-07 | 北京工业大学 | Clamping device for tensile test of tungsten wire rope for single crystal furnace |
| CN112539684A (en) * | 2020-12-22 | 2021-03-23 | 中国航天空气动力技术研究院 | Steel wire rope clamp and application thereof |
| CN112539684B (en) * | 2020-12-22 | 2024-02-09 | 中国航天空气动力技术研究院 | Steel wire rope clamp and application thereof |
| CN113399198A (en) * | 2021-06-21 | 2021-09-17 | 安徽珂洁日用品有限公司 | Stainless steel wire film coating device for medical instrument |
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