CN206671070U - A kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27 and its fixture - Google Patents

Abstract

The utility model discloses a kind of coaxial "Jumper" cable device for measuring force of core of EMUs 27 and its fixture, belong to testing lines apparatus field.A kind of coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27, including clamp, nip rolls, clamp seat, clamping fixture seat and push rod；Described clamp is including symmetrical two, and the touch part of the clamp described in two the tong chopses including one end, the articulated section that middle part is hinged with described clamp seat and the other end, rotatable on described touch part to be provided with described nip rolls；Described clamp seat is fixedly installed on described clamping fixture seat；Through hole is provided with described clamping fixture seat, described through hole is corresponding with described tong chopses；Described through hole is stretched into one end of described push rod, and the end includes two inclined-planes, the inclined-plane described in two and described nip roller.The micro-displacement problem brought for clamp process in existing cable material tensile strength test, the utility model can realize the accurate measurement of CABLE MATERIALS tensile strength.

Description

A kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27 and its fixture

Technical field

The utility model belongs to testing lines apparatus field, specifically, is related to a kind of core of EMUs 27 and coaxially bridges electricity Cable device for measuring force and its fixture.

Background technology

At present, puller system is perfect not enough to the accuracy of detection of CABLE MATERIALS tensile strength, to client in test, regulation, machine The each side such as platform correction bring different degrees of influence, so as to there is certain deviation in test data, influence to test effect, Especially result is not accurate to caused by micro-displacement in CABLE MATERIALS cinching process, influences product later stage quality.

Chinese Patent Application No. 201520751790.7, Authorization Notice No. CN 205049416U, disclose a kind of cable and draw Power test machine.It it include support frame, the fixed plate for being fixed on support frame upper end and bottom and base, the electricity being fixed on base The lower fixing device of cable, electronic crane scale, be fixed on electronic crane scale lower end cable upper fixing device and take-up device；Tense dress The upper end that lower end is fixed on electronic crane scale is put, upper end is fixed in fixed plate, its length between fixed plate and electronic crane scale Spend it is adjustable, its pull electronic crane scale move up and down；The upper fixing device of cable and lower fixing device are vertically opposite, after installation Cable and horizontal plane.The utility model is simple in construction, manufacture is easy, applied widely, can be to various sizes model Cable carries out tensile test, Stability Analysis of Structures, can measure precisely, and operate facility.But the utility model has the following disadvantages： The device occurs the micro-displacement of CABLE MATERIALS in test cable material tensile strength, and this micro-displacement occur fixture with Between CABLE MATERIALS (CABLE MATERIALS and the two side portions of holder contacts can be pullled out), cause testing result inaccurate.

Chinese Patent Application No. 201520606128.2, Authorization Notice No. CN 205015223U, discloses a kind of engineering plastic Expect instron.It includes base, testing stand, lifting platform and variable speed electric motors, particularly, and the variable speed electric motors, particularly is arranged on experiment On platform, the variable speed electric motors, particularly output end is connected by shaft coupling with screw mandrel, and the screw mandrel is connected by testing stand with lifting platform, Centre position is provided with spill deck on the downside of the lifting platform, and the both sides of the deck are symmetrically arranged with adjusting rod, the regulation Bar horizontal sides are provided with clamping screw, and the adjusting rod is corresponded on the base and is provided with fix bar, is set in the fix bar There is clamping screw.The utility model has more preferable holding capability and more easily regulating power, and experiment is easy, easy, makes The data that engineering plastics tensile strength test is obtained are more credible closer to actual value.But the utility model exist it is following not Foot：The device middle concave deck and can not solve part to be measured well for fixing the fixed block of part to be measured and directly bear to clamp The clamping of part, during test, small displacement still occurs in the contact portion of part and holder to be measured.

The content of the invention

1st, to solve the problems, such as

The micro-displacement problem brought for clamp process in existing cable material tensile strength test, the utility model A kind of high sensitivity and the easy to operate coaxial "Jumper" cable device for measuring force of the core of EMUs 27 and its fixture are provided, cable can be realized Expect the accurate measurement of tensile strength.

2nd, technical scheme

To solve the above problems, the utility model adopts the following technical scheme that.

A kind of coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27, including clamp, nip rolls, clamp seat, clamping fixture seat and push rod； Described clamp includes symmetrical two, and the clamp described in two the tong chopses including one end, middle part and described clamp The be hinged articulated section of seat and the touch part of the other end, it is rotatable on described touch part to be provided with described nip rolls；Described Clamp seat is fixedly installed on described clamping fixture seat；Through hole, described through hole and described folder are provided with described clamping fixture seat Jaw is corresponding；Described through hole is stretched into one end of described push rod, and the end includes two inclined-planes, inclined-plane and institute described in two The nip roller stated.

Preferably, in addition to cylinder, the piston rod of described cylinder are fixedly connected with described push rod, and described cylinder Cylinder body be fixedly connected with described clamping fixture seat.

Preferably, described clamp seat includes two side plates and bottom plate, and described articulated section is cut with scissors with the side plate described in two Connect；Described bottom plate is fixedly connected with the bottom of the side plate described in two, and is fixed on described clamping fixture seat.

A kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27, including force cell, frame, lowering or hoisting gear, first Fixture and the second fixture；The first described fixture and the second fixture are using the EMUs described in above-mentioned any one technical scheme The coaxial "Jumper" cable dynamometer clamp of 27 cores；The cylinder body of the second described fixture is fixedly installed on described lowering or hoisting gear；It is described The upper end of force cell be fixedly connected with the cylinder body of the first described fixture；And its lower end is fixedly installed on described frame Bottom plate on.

Preferably, described lowering or hoisting gear includes screw mandrel and crossbeam；The cylinder body of the second described fixture is fixedly installed on institute On the crossbeam stated；Wire master hole corresponding with described screw mandrel is provided with described crossbeam；The upper and lower side difference of described screw mandrel It is connected by bearing with described frame, and the upper end of described screw mandrel also connects with motor connection, described motor with controller Connect.

Preferably, in addition to cylinder block, the lower part of the cylinder body of described force cell and the first described fixture is equal It is arranged in described cylinder block, and described cylinder block is fixedly installed on the bottom plate of described frame.

Preferably, in addition to displacement measurement box, the first weightless folder, the second weightless folder, the first balancing weight and the second balancing weight, Institute's displacement measurement box is fixed on described frame upper end；The weightless folder of described first is connected by rope and the first described balancing weight Connect, the described second weightless folder is connected by rope with the second described balancing weight, and described rope is passed around in described displacement measurement On box；Described first weightless folder and the described second weightless folder extend the first described fixture and the second described fixture it Between.

Preferably, in addition to limit switch, described limit switch connect described controller, and described limit switch It is arranged on the lower end of the weightless folder of described second.

Preferably, described displacement measurement box includes two fixed pulleys；The rope of the weightless folder of connection first and the first balancing weight, The rope of the weightless folder of connection second and the second balancing weight is rotating around being located on two fixed pulleys.

Preferably, the quantity of described screw mandrel is 2-4.

3rd, beneficial effect

Compared to prior art, the beneficial effects of the utility model are：

(1) in fixture of the present utility model nip rolls and push rod setting, convenience simple in construction and easy to maintain, cause simultaneously Fixture obtains more preferable holding capability；

(2) in fixture of the present utility model cylinder and clamp seat setting, can improve fixture operation steadiness；

(3) first fixture, the second fixture use same fixture in device of the present utility model, improve tensile strength test Accuracy；Cable under test both ends need to be only respectively placed on the first fixture and the second fixture, as long as the position of adjustment lowering or hoisting gear Put change, so that it may realize the accurate test to cable under test tensile strength；

(4) lowering or hoisting gear uses screw mandrel and crossbeam in device of the present utility model, is easy between further accurate adjustment fixture Away from；

(5) cylinder block in device of the present utility model, it is easy to further consolidate fixture and plays the edge-on sensor of protection Effect；

(6) first weightlessness is pressed from both sides in device of the present utility model, the second weightlessness is pressed from both sides and the setting of balancing weight, greatly improves experiment Accuracy and enhancing experiment reliability；

(7) limit switch plays a part of the weightless folder of protection second in device of the present utility model；

(8) displacement measurement box further improves the experiment accuracy of device in device of the present utility model, reduces friction belt The error come.

Brief description of the drawings

Fig. 1 is the structural representation of device in the utility model；

Fig. 2 is device dimensional structure diagram in the utility model；

Fig. 3 is the schematic diagram of clamp working-station in the utility model；

Fig. 4 is the internal structure schematic diagram of clamp in Fig. 3；

Fig. 5 is the schematic diagram of another working condition of fixture in the utility model；

Fig. 6 is the structural representation of clamp in Fig. 5.

In figure：1- clamps；2- nip rolls；3- clamp seats；4- clamping fixture seats；5- cylinder bodies；6- screw mandrels；7- displacement measurement boxes；8- One weightless folder；The weightless folders of 9- second；The fixtures of 10- first；The fixtures of 11- second；12- cylinder blocks；13- limit switches；14- first matches somebody with somebody Pouring weight；The balancing weights of 15- second；16- crossbeams.

Embodiment

The utility model is further described below with reference to specific embodiment.

Embodiment 1

As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27, including clamp 1, Nip rolls 2, clamp seat 3, clamping fixture seat 4 and push rod；Described clamp 1 includes symmetrical two, and the clamp 1 described in two includes The touch part of the tong chopses of one end, the articulated section that middle part is hinged with described clamp seat 3 and the other end, on described touch part It is rotatable to be provided with described nip rolls 2；Described clamp seat 3 is fixedly installed on described clamping fixture seat 4；Described clamping fixture seat 4 Through hole is provided with dynamometry, described through hole is corresponding with described tong chopses；Described through hole is stretched into one end of described push rod, And the end includes two inclined-planes, the inclined-plane described in two contacts with described nip rolls 2.

One end of push rod is set as inclined plane shape and interacted with nip rolls 2 in the present embodiment, then can be by controlling push rod Up and down motion realize the clamping of clamp 1 or release；Such structure avoids the discontinuity of clamp 1 in fixture, and Clamp 1 can be adjusted flexibly.

Embodiment 2

A kind of coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27, on the basis of embodiment 1, in addition to cylinder, it is described The piston rod of cylinder be fixedly connected with described push rod, and the cylinder body 5 of described cylinder is fixed with described clamping fixture seat 4 and connected Connect；Described clamp seat 3 includes two side plates and bottom plate, and described articulated section is hinged with the side plate described in two；Described bottom Plate is fixedly connected with the bottom of the side plate described in two, and is fixed on described clamping fixture seat 4.

The setting of cylinder further increases the holding capability of fixture, and the latus inframedium of clamp seat 3 and bottom plate in the present embodiment Setting be easy to firm clamp 1.

Embodiment 3

As illustrated in fig. 1 and 2, a kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27, including force cell, frame, Lowering or hoisting gear, the first fixture 10 and the second fixture 11；

Described lowering or hoisting gear includes screw mandrel 6 and crossbeam 16；It is provided with described crossbeam 16 corresponding with described screw mandrel 6 Wire master hole；The upper and lower side of described screw mandrel 6 is connected by bearing with described frame respectively, and the upper end of described screw mandrel 6 Also it is connected with motor connection, described motor with controller.

Screw mandrel 6 and crossbeam 16 are cooperated in the present embodiment, and the rotation of screw mandrel 6 is driven using controller motor, The change in displacement of the second fixture 11 of accurate adjustment can be realized.

The first described fixture 10 and the second fixture 11 use fixture in embodiment 2；The cylinder of the second described fixture 11 Body 5 is fixedly installed on described crossbeam 16；The upper end of described force cell and the cylinder body 5 of the first described fixture 10 are solid Fixed connection, and its lower end is fixedly installed on the bottom plate of described frame；Force cell measures cylinder body 5 in the first fixture 10 Stressing conditions, and cylinder body 5 is fixedly connected with clamping fixture seat 4 in the first fixture 10, according to the principle of reaction of power, under such situation The stress of cylinder body 5 reflects the drawing described in the cable under test both ends between the first fixture 10 and the second fixture 11 in one fixture 10 Power.

The both ends of cable under test are fixed with the first fixture 10, the second fixture 11 respectively in this implementation, then filled by lifting The relative position between the first fixture 10 of adjustment and the second fixture 11 is put, then and reads the reading of force cell, according to the The relative position change of one fixture 10 and the second fixture 11 and dynamometry reading calculate deformation of the cable under test under different pulling force Rate.

Embodiment 4

A kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27, on the basis of embodiment 3, in addition to cylinder block 12, Described force cell and the lower part of the cylinder body 5 of the first described fixture 10 may be contained within described cylinder block 12, and Described cylinder block 12 is fixedly installed on the bottom plate of described frame.

The setting of the dynamometry of cylinder block dynamometry 12 is easy to protect force cell and cylinder body 5 in the present embodiment, also ensures that simultaneously The steadiness of first fixture 10 during test, reduce the test error that test environment conditions interference fringe comes.

When the present embodiment cable under test clamps with clamp 1 in fixture, particularly the second fixture 11 is driven above and below cable under test During motion, it may appear that the micro-displacement between cable under test and clamp 1, so as to cause the inaccurate of result of the test, therefore, this reality With it is new be further improved it is as follows.

Embodiment 5

A kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27, on the basis of embodiment 5, in addition to displacement measurement box 7th, the first weightless the 9, first balancing weight 14 of weightless folder of folder 8, second and the second balancing weight 15, institute's displacement measurement box 7 is fixed on institute The frame upper end stated；The weightless folder 8 of described first is connected by restricting with the first described balancing weight 14, the described second weightless folder 9 are connected by restricting with the second described balancing weight 15, and described rope is passed around on described displacement measurement box 7；Described first Extended on 8 and described second weightless folder 9 of weightlessness folder between the first described fixture 10 and the second described fixture 11, for pressing from both sides Hold cable under test；

Described displacement measurement box 7 includes two fixed pulleys；The rope of the weightless balancing weight 14 of folder 8 and first of connection first, connect The rope of the second weightless balancing weight 15 of folder 9 and second is connect rotating around being located on two fixed pulleys；The quantity of described screw mandrel 6 is 2.

The setting of displacement measurement box 7 in the present embodiment, weightless folder can be caused to reach flat within a short period of time with balancing weight Weighing apparatus, reduce the test error that the friction belt of rope is come；The setting of 2 screw mandrels 6, improve the stability of lowering or hoisting gear operation.

Weightlessness is in complete agravity state in the presence of being clipped in balancing weight in the present embodiment, when it clamps cable under test skin Turn into an entirety with cable skin, can be moved up and down as cable skin stress stretches the length of side；When cable skin applied elongation, One weightless folder 8 rises, and now the distance of 7 default pulley rolling of displacement measurement box is the distance that the first weightless folder 8 rises, and second loses Folder 9 declines again, and the distance that now another fixed pulley rolls in displacement measurement box 7 is the distance that the second weightless folder 9 declines, the two It is that cable skin is stretched the distance of elongation apart from sum；At the same time, cable under test skin stress stretch, the first fixture 10 also by To upward power, this power is measured by force cell；In the pulling force and the feelings of cable under test skin applied elongation distance accurately measured Under condition, the tensile property of cable under test skin can be accurately calculated.

The present embodiment realizes that the change in displacement of cable under test under tension is more accurate, decreases cable under test and clamp The error that micro-displacement between 1 is brought；The addition of balancing weight, it is easy to weightless folder to keep dynamic equilibrium with counterweight, due to clip It is integrated with weightlessness folder, this causes weightless folder to be in " complete agravity " state, reduces influence of the weightless folder to cable under test.

Embodiment 7

A kind of coaxial "Jumper" cable device for measuring force of the core of EMUs 27, on the basis of embodiment 6, in addition to limit switch 13, described limit switch 13 connects described controller, and described limit switch 13 is arranged on the weightless folder 9 of described second Lower end.

Limit switch 13 is arranged on the lower end of the second weightless folder 9 in the present embodiment, and limit switch 13 is connected with controller, When screw mandrel 6 drives the crossbeam 16 to rise, cable under test both ends are constantly stretched, at the same the second weightless folder 9 down skew until with limit Bit switch 13 contacts, and after the sensor on limit switch 13 is triggered and notification controller stops motor and continues to drive 6 turns of screw mandrel It is dynamic；The level of stretch of control cable under test is realized, avoids excessive tensile from causing test data inaccurate.

Claims (10)

1. A kind of 1. coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27, it is characterised in that：Including clamp (1), nip rolls (2), clamp Seat (3), clamping fixture seat (4) and push rod；Described clamp (1) includes symmetrical two, and the clamp (1) described in two includes one The touch part of the tong chopses at end, the articulated section that middle part is hinged with described clamp seat (3) and the other end, on described touch part It is rotatable to be provided with described nip rolls (2)；Described clamp seat (3) is fixedly installed on described clamping fixture seat (4)；Described folder Through hole is provided with tool seat (4), described through hole is corresponding with described tong chopses；Described lead to is stretched into one end of described push rod Hole, and the end includes two inclined-planes, the inclined-plane described in two contacts with described nip rolls (2).
2. A kind of 2. coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27 according to claim 1, it is characterised in that：Also include Cylinder, the piston rod of described cylinder are fixedly connected with described push rod, and the cylinder body (5) of described cylinder and described fixture Seat (4) is fixedly connected.
3. A kind of 3. coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27 according to claim 2, it is characterised in that：Described Clamp seat (3) includes two side plates and bottom plate, and described articulated section is hinged with the side plate described in two；Described bottom plate, which is fixed, to be connected The bottom of the side plate described in two is connect, and is fixed on described clamping fixture seat (4).
4. A kind of 4. coaxial "Jumper" cable device for measuring force of the core of EMUs 27, it is characterised in that：Including force cell, frame, lifting Device, the first fixture (10) and the second fixture (11)；Described the first fixture (10) and the second fixture (11) will using right Seek the coaxial "Jumper" cable dynamometer clamp of the core of EMUs 27 described in 1-3 any one；The cylinder body (5) of described the second fixture (11) It is fixedly installed on described lowering or hoisting gear；The upper end of described force cell and the cylinder body of described the first fixture (10) (5) it is fixedly connected；And its lower end is fixedly installed on the bottom plate of described frame.
5. A kind of 5. coaxial "Jumper" cable device for measuring force of the core of EMUs 27 according to claim 4, it is characterised in that：Described Lowering or hoisting gear includes screw mandrel (6) and crossbeam (16)；The cylinder body (5) of described the second fixture (11) is fixedly installed on described crossbeam (16) on；Wire master hole corresponding with described screw mandrel (6) is provided with described crossbeam (16)；Above and below described screw mandrel (6) End be connected respectively by bearing with described frame, and the upper end of described screw mandrel (6) also with motor connection, described motor and Controller connects.
6. A kind of 6. coaxial "Jumper" cable device for measuring force of the core of EMUs 27 according to claim 5, it is characterised in that：Also include The lower part of the cylinder body (5) of cylinder block (12), described force cell and described the first fixture (10) may be contained within described Cylinder block (12) in, and described cylinder block (12) is fixedly installed on the bottom plate of described frame.
7. A kind of 7. coaxial "Jumper" cable device for measuring force of the core of EMUs 27 according to claim 6, it is characterised in that：Also include Displacement measurement box (7), the first weightless folder (8), the second weightless folder (9), the first balancing weight (14) and the second balancing weight (15), it is described Displacement measurement box (7) is fixed on described frame upper end；The weightless folder (8) of described first is by restricting and the first described balancing weight (14) connect, the described second weightless folder (9) is connected by restricting with described the second balancing weight (15), and described rope is passed around in institute On the displacement measurement box (7) stated；The weightless folder (8) of described first and the described second weightless folder (9) extend the first described folder Have between (10) and described the second fixture (11).
8. A kind of 8. coaxial "Jumper" cable device for measuring force of the core of EMUs 27 according to claim 7, it is characterised in that：Also include Limit switch (13), the described controller of described limit switch (13) connection, and described limit switch (13) is arranged on institute The lower end for the second weightless folder (9) stated.
9. A kind of 9. coaxial "Jumper" cable device for measuring force of the core of EMUs 27 according to claim 8, it is characterised in that：Described Two fixed pulleys are provided with displacement measurement box (7)；The rope of the weightless folder (8) of connection first and the first balancing weight (14), connect the The rope of two weightless folders (9) and the second balancing weight (15) is rotating around being located on two fixed pulleys.
10. A kind of 10. coaxial "Jumper" cable device for measuring force of the core of EMUs 27 according to claim 9, it is characterised in that：It is described The quantity of screw mandrel (6) be 2-4.