CN206223440U - The monocyclic bending force test machine of hoisting chain - Google Patents

Abstract

The utility model discloses a kind of monocyclic bending force test machine of hoisting chain,Including walking chain-drive mechanism and lifting decelerator structure,Walking chain-drive mechanism includes being divided into going out for fuselage both sides,Enter chain guide wheel and be divided into entering on fuselage,Go out chain shaft wheel assembly,Enter,Go out chain shaft wheel assembly and put little gear in chain motor with walking loaded on back to engage,Pleasure boat is hung by duplicate rows chain,Pleasure boat seat lower end fixed end taken about the point of fixation sensor,Lifting decelerator structure includes being fixed on the chassis for offering step through-hole of body table bottom,Transmission gear wheel and screw mandrel,The center screw transmission engagement screw mandrel that gear wheel is opened up,The axially extending necking segment in its upper end of the center screw is spacing in step through-hole,Screw mandrel top passes necking segment and fixed end taken about the point of fixation sensor,The fixed guide stub shaft in screw mandrel bottom is slidedly arranged on and is oriented in the pilot hole of fixed plate,Transmission gear wheel is engaged with the output pinion loaded on lifting motor output shaft.The bending of this test function, thick stick draw tensioner to detect duplicate rows chain strength.

Description

The monocyclic bending force test machine of hoisting chain

【Technical field】

The utility model is related to a kind of monocyclic bending force test machine of hoisting chain, belongs to finished product hoisting chain safe load and adds Carry power technical field of measurement and test.

【Background technology】

Hoisting chain is made up of the multiple single chain link (chain link) that ring set each other links, and cucurbit uses in actual condition When chain on each chain link be subjected to the gravity of weight, the method that finished product chain its security is considered at present is using whole Test is drawn in examination before chain is dispatched from the factory in the thick stick drawing equipment by manpower to chain, a kind of whole of specification cucurbit chain its total length 2.5 meters are as short as, up to tens of rice, examination cannot carry out strength test to each chain link on chain when drawing, therefore cannot know can Can there is the chain link of potential safety hazard, for this drawback that conventional examination drawing equipment is present, how design a chain strong by ring The equipment for detecting is spent, is in fact the direction that chain manufacturing needs effort badly.

【Utility model content】

The purpose of this utility model is to provide a kind of monocyclic bending force test machine of efficient, compact hoisting chain, the test Machine can draw tensioner by bending tensioner and thick stick and try to draw duplicate rows chain with its intensity of comprehensive detection, alternative artificial poorly efficient and overcome The rough technical deficiency of test.

Therefore, the utility model provides following technical scheme：

The monocyclic bending force test machine of hoisting chain, including fuselage, walk chain-drive mechanism and this walks the driving of chain-drive mechanism Device, its improvement is：Also include lifting decelerator structure, the drive device is installed on carrying for back including horizontal In put little gear walk chain motor, it is described walk chain-drive mechanism include located at fuselage side enter chain guide wheel, located at fuselage Going out chain guide wheel and being divided into entering for back for opposite side and goes out chain shaft wheel assembly at chain shaft wheel assembly, in put little gear difference Engage into chain shaft wheel assembly, go out chain shaft wheel assembly, the pleasure boat that rotation is arranged on pleasure boat seat engages duplicate rows chain and pleasure boat is located at In put the underface of little gear, pleasure boat seat is fixed with the torque sensor for measuring duplicate rows chain expanding force, institute in its lower end Stating lifting decelerator structure includes being fixed on the chassis for offering step through-hole of body table bottom, transmission gear wheel and screw mandrel, Transmission gear wheel open up center screw screw mandrel transmission engagement, the axially extending necking segment in its upper end of the center screw it is spacing In the step through-hole, the top of screw mandrel passes this necking segment and is fixed on the bottom of torque sensor, and screw mandrel is solid in its bottom If guide stub shaft be slidedly arranged in the guiding fixed plate with long guiding hole, transmission gear wheel by loaded on its output shaft of lifting motor On output pinion engaged transmission.

Supplemented and perfect as further, the utility model also includes following technical characteristic：

To prevent screw mandrel from declining excessive damage equipment and security incident occur, the utility model is also included for controlling to swim The descending limit switch of descending extreme position is taken turns, cylindricality guide rail is housed between back and body table and this cylindricality is fixed on Guide-rail plate on guide rail, descending limit switch is fixed on this cylindricality guide rail, and the position-limit foot set on pleasure boat seat is slided and set In the sliding space constituted between cylindricality guide rail and guide-rail plate, and position-limit foot is corresponding with this descending limit switch.

The setting of cylindricality guide rail and guide-rail plate, improves the mobile stability of pleasure boat seat, can prevent pleasure boat seat from twisting, And then avoid chain from being twisted in test process, descending spacing hold can be contradicted if position-limit foot when there are abnormal conditions Close, can in time cut off lifting motor power supply.

Be versatility that reduces cost improves part, it is above-mentioned enter chain shaft wheel assembly include entering sprocket wheel loaded on back What axle, rotation were arranged at that this enters on sprocket shaft enters chain wheel portion and transmission gear；Go out chain shaft wheel assembly and have with chain shaft wheel assembly is entered There is identical structure.

To improve away Chain conveyer precision, it is above-mentioned enter chain shaft wheel assembly in chain wheel portion of entering be one overall with transmission gear Part；The chain wheel portion that goes out gone out in chain shaft wheel assembly is a single piece with transmission gear.

Compared with prior art, the utility model has the following advantages that and good effect：

The monocyclic bending force test machine of hoisting chain that the utility model is provided, can automatically walk chain after machine on chain, can Try to draw duplicate rows chain with its intensity of comprehensive detection by bending tensioner and thick stick drawing tensioner mode, not only compact integral structure degree is high, Examination pulling efficient, can be greatly reduced artificial intensity.

【Brief description of the drawings】

The utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the monocyclic bending force test machine of the utility model hoisting chain；

Fig. 2 is longitudinal portion's view of the invention；

Fig. 3 is the A portions enlarged drawing of Fig. 1；

Fig. 4 is the B portions enlarged drawing of Fig. 2；

Fig. 5 is the top view into and out of chain shaft wheel assembly and drive device；

Fig. 6 is the schematic diagram of control panel；

Fig. 7 is the schematic diagram of torque digital control instrument.

【Specific embodiment】

Refer to shown in Fig. 1,2,3,4,5,6,7, be preferred embodiment of the present utility model.

The monocyclic bending force test machine of hoisting chain, including fuselage G, walk chain-drive mechanism and this walks the driving of chain-drive mechanism Device, its improvement is：Also include lifting decelerator structure, the drive device includes the horizontal band for being installed on back G1 That little gear 11 is put in having walks chain motor M1, it is described walk chain-drive mechanism include located at fuselage G sides enter chain guide wheel 21, Go out chain guide wheel 22 and be divided into entering for back G1 chain shaft wheel assembly 23 and to go out chain shaft wheel assembly located at fuselage G opposite sides 24, in put little gear 11 and engage respectively into chain shaft wheel assembly 23, go out chain shaft wheel assembly 24, rotation is arranged at the trip on pleasure boat seat 3 Wheel 31 engages duplicate rows chain Z1, and the pleasure boat 31 hung by duplicate rows chain Z1 puts the underface of little gear 11, pleasure boat seat in being located at 30 are fixed with the torque sensor 4 for measuring duplicate rows chain Z1 tensioner stress in its lower end, and the lifting decelerator structure includes The chassis 51 for offering step through-hole 510, transmission gear wheel 52 and the screw mandrel 53 of body table G2 bottoms are fixed on, canine tooth is driven The transmission engagement of 520 screw mandrel of center screw 53 that wheel 52 is opened up, the axially extending necking segment 521 in its upper end of center screw 520 It is spacing that the top of screw mandrel 53 passes this necking segment 521 and is fixed on the bottom of torque sensor 4 in the step through-hole 510, The guide stub shaft 61 fixed in its bottom of screw mandrel 53 is slidedly arranged in the guiding fixed plate 6 with long guiding hole, is driven gear wheel 52 By loaded on the engaged transmission of output pinion 72 on lifting motor M2 its output shaft 71.

The long guiding hole for setting is slided for guide stub shaft 61 not seen in figure.

What (Fig. 1 be shown as fuselage left side) was also equipped with fuselage G sides enter chain drum 20 is located at into chain guide wheel 21 lower section, should Enter the cross pilot hole 200 that chain drum 20 opens up to be passed through for chain Z.

Pleasure boat axle 32 is installed, pleasure boat 31 is rotated and is arranged on pleasure boat axle 32 on pleasure boat seat 3.

Lifting motor M2 is vertical to be installed on platen pin G3, and lifting motor M2 is the strap brake with frequency conversion function, slows down The three-in-one reducing motor of device.

Lifting motor M2 carries out deceleration transmission by the engaged transmission gear wheel 52 of output pinion 72, so that conversion of motion is Screw mandrel 53 is integrally moved up and down, wherein, drive torque sensor 4, pleasure boat seat 3, pleasure boat 31 in the upper end of screw mandrel 53 is carried out Move up and down, to meet the effect of corresponding lax or tensioner duplicate rows chain Z1, grown along fixed plate 6 is oriented to due to guide stub shaft 61 The long guiding hole that degree direction opens up is moved up and down, then the lower end for meeting screw mandrel 53 reliably moves up and down.

In order to ensure the reliability that screw mandrel 53 its epimere is moved up and down, the Design of length of necking segment 521 makes it pass chassis 51 step through-hole 510 and stretch into body table G2.

It is oriented on casing of the fixed plate 6 loaded on lifting motor M2.

Shaft block ring F1, spacer sleeve H are arranged with necking segment 521, back-up ring F2 in hole is provided with step through-hole 510.

To prevent being driven the radial-play of gear wheel 52, interval is provided with a pair of biographies between necking segment 521 and step through-hole 510 Dynamic deep groove ball bearing.Wherein, underlying transmission deep groove ball bearing K21 is installed on the shoulder of step through-hole 510, and is located at The transmission deep groove ball bearing K22 of top is arranged in step through-hole 510, and the two bearings K21, K22 are by being arranged at necking down Spacer sleeve H in section 521 separates installation.To prevent transmission gear wheel 52 from being spun off from chassis 51, transmission gear wheel 52 is pacified Its necking segment 521 is spacing in step through-hole 510 by shaft block ring F1 during dress.

To prevent being driven the axial float of gear wheel 52, transmission thrust ball axle is equiped between transmission gear wheel 52 and chassis 51 Hold K1.

It surround 521 bottom of necking segment one week and the periphery around the bottom of necking segment 521 and in the upper side of transmission gear wheel 52 Inner ring shallow trench 523, outer shroud deep trench 522 are offered respectively.Wherein, above-mentioned transmission thrust ball bearing K1 is mounted in outer shroud depth In the space that groove 522 is constituted with chassis 51, make transmission thrust ball bearing K1 that transmission is met in the case of axial load is born big Gear 52 being capable of the rotation of freedom and flexibility ground.

The utility model also includes the descending limit switch SW1 for controlling the descending extreme position of pleasure boat 31, the fuselage It is descending spacing equipped with the cylindricality guide rail G4 and guide-rail plate I being fixed on this cylindricality guide rail G4 between top G1 and body table G2 Switch SW1 is fixed on this cylindricality guide rail G4, and the position-limit foot 30 set on pleasure boat seat 3 is slideably positioned in cylindricality guide rail G4 In the sliding space constituted between guide-rail plate I, position-limit foot 30 is corresponding with this descending limit switch SW1.

Descending limit switch SW1 is located at the lower section of position-limit foot 30.

Lifting position-limit switch SW2, lifting position-limit switch are additionally provided with positioned at the top of position-limit foot 30 and on cylindricality guide rail G4 SW2 is also corresponding with position-limit foot 30.

The structure for going out chain shaft wheel assembly 24 is identical with the structure for entering chain shaft wheel assembly 23, and entering chain shaft wheel assembly 23 includes being loaded on Back G1 enter that sprocket shaft 230, rotation be arranged at that this enters on sprocket shaft 230 enter chain wheel portion 232 and transmission gear 231, similarly, going out chain shaft wheel assembly 24 includes that go out sprocket shaft 240, rotation loaded on back G1 are arranged at this and go out sprocket shaft Go out chain wheel portion 242 and transmission gear 241 on 240.

Walk during chain motor M1 is fixedly mounted on its output shaft 12 and put little gear 11, it is have to walk chain motor M1 The strap brake of frequency conversion function, the three-in-one reducing motor of decelerator.

Enter sprocket shaft 230, go out sprocket shaft 240 and the output shaft 12 in the middle of this two axle in three axles be arranged in parallel, in put Little gear 11 distinguishes engaged transmission gear part 231, transmission gear 241.

The chain wheel portion 232 of entering entered in chain shaft wheel assembly 23 is a single piece with transmission gear 231；Go out chain shaft wheel assembly 24 In go out chain wheel portion 242 and transmission gear 241 be a single piece.

The monocyclic bending force test machine of hoisting chain is operated according to the following steps：

1) machine engagement on chain：

Open after the power switch 81 in control panel 8 is powered to whole machine, first, it would be desirable to which the chain link specification of detection is The chain Z of 8mm (diameter) × 24mm (pitch) is bypassed into chain guide wheel 21 after passing through the cross pilot hole 200 of chain drum 20, then will The plate link chain of chain Z is engaged on into the chain nest 2320 of chain wheel portion 232, pins click-through button 82, and chain motor M1 is walked in control And chain Z head ends is slowly imported into chain wheel portion 232, and continue to pin click-through button 82, remittance abroad is entered the chain Z of chain wheel portion 232 Its sagging length then unclamps click-through button 82 after reaching 50-100cm, then first the chain Z for hanging down is engaged to the chain nest of pleasure boat 31 In 310 and continue the chain nest 2420 that will be suspended to out in chain wheel portion 242 on chain Z and make plate link chain engage out chain wheel portion 242, (chain wheel portion 232, pleasure boat 31 now, are engaged successively and have gone out the u-shaped duplicate rows chain for hanging from above of chain segment of chain wheel portion 242 Form), click-through button 82 is pinned again makes chain be in engage out and slowly converged with the state of chain wheel portion 242 chain wheel portion 242, Chain finally is gone out into the end of the chain to be suspended to out on chain guide wheel 22, so that it may which unclamping click-through button 82 makes to walk chain motor M1 to stop operating, Chain Z then remains static.

Due to entering chain wheel portion 232, going out chain wheel portion 242 and the determination of the position relationship of pleasure boat 31, therefore, chain Z tensioner pulling force Can be save before test will control the operation for trying zip strip length together.

2) duplicate rows chain tensioner stress：

The decline button 84 in control panel 8 is pinned, lifting motor M2 rotates clockwise to drive lifting decelerator structure, promoted The screw mandrel 53 in the mechanism is persistently moved down, duplicate rows chain test section is persistently carried out into tensioner, while observing torque numerical control Display window 90 its reading value on instrument 9, until reaching the test load of process stipulation, then release declines button 84 makes lifting electricity Machine M2 stops operating, and duplicate rows chain test section tensioner is in place.

From static observations：In duplicate rows chain test section, plate link chain of the engagement tensioner at the chain nest 310 of pleasure boat 31 is to undergo Bending force strength test, and in duplicate rows chain test section, be located at between chain wheel portion 232 and pleasure boat 31 and hang chain from above Part and the portion of chain that hangs from above being located at out between chain wheel portion 242 and pleasure boat 31 have been simultaneously subjected to tension intensity test.

Because duplicate rows chain test section head and the tail two ends have multiple plate link chains to be engaged in the chain nest into chain wheel portion 232 respectively 2320 and go out in the chain nest 2420 of chain wheel portion 242, therefore, thick stick can be abandoned during chain tensioner forces testing and draws folder necessary to equipment Tool clamps the operation at chain test section two ends.

3) chain continuously walks chain test：Duplicate rows chain tensioner in place after, the forwarding button 83 in pressing control panel 8 is opening Chain motor M1 work is moved away, chain is continuously uninterruptedly tested under tensioner state, until completing whole Zhi Quanchang chains The tensioner strength test operation of bar Z.

By dynamically observing：Loose state chain is persistently input into the porch of chain wheel portion 232 is entered from entering chain drum 20, entering chain guide wheel 21, And enter chain wheel portion 232, pleasure boat 31 and go out the duplicate rows chain that chain wheel portion 242 is then persistently moved through tensioner state successively, go out chain wheel portion 242 exits continue court and go out the loose state chain of the direction of chain guide wheel 22 output, until complete Zhi Quanchang chains Z is continuously walked, due to whole branch Each chain link in total length chain Z is with bending tensioner by pleasure boat 31, therefore whole Zhi Quanchang chains single-stranded loop is subjected to bending force Strength test, and whole Zhi Quanchang chains are moved through pleasure boat 31 and are moved through out chain from pleasure boat 31 from entering chain wheel portion 232 During wheel portion 242, tension intensity test is subjected to, thus reflects that the utility model is carried out by force for chain safe load The high reliability of power test.

When occurring weld crack chain link in duplicate rows chain and causing to shut down, treatment is as follows：

Start lifting motor, being driven control screw mandrel by lifting decelerator structure is moved upwardly by, and relaxes and intercepts and be moved away from The chain link for splitting, then pleasure boat will be again engaged after chain rupture continued access, tensioner duplicate rows chain, then proceeds by follow-up test work again.

4) pleasure boat resets：The rising button 85 in control panel 8 is pinned, lifting motor M2 is then rotated counterclockwise and driven liter Drop reducing gear, the screw mandrel 53 in the mechanism is moved up, and promotes pleasure boat 31 to be located substantially at lifting position-limit switch SW2 and descending limit Centre position between bit switch SW1, machine engages defeated chain on next chain Z to be tested of waiting.

The technique of 8mm × 24mm chain tensioner forces testings is as follows：The chain rated load, limit for tonnage safety coefficient difference For：20kN, 1.25, the machine carry out tensioner forces testing using duplicate rows chain, then its test load of duplicate rows chain tensioner stress is： 20kN × 2 (chain line number) × 1.25=50kN.Wherein, 50kN=50000 newton.

Claims (4)

1. a kind of monocyclic bending force test machine of hoisting chain, including fuselage, chain-drive mechanism is walked and this walks the drive of chain-drive mechanism Dynamic device, it is characterised in that：Also include lifting decelerator structure, the drive device is installed on carrying for back including horizontal In put little gear walk chain motor, it is described walk chain-drive mechanism include located at fuselage side enter chain guide wheel, located at fuselage Going out chain guide wheel and being divided into entering for back for opposite side and goes out chain shaft wheel assembly at chain shaft wheel assembly, in put little gear difference Engage into chain shaft wheel assembly, go out chain shaft wheel assembly, the pleasure boat that rotation is arranged on pleasure boat seat engages duplicate rows chain and pleasure boat is located at In put the underface of little gear, pleasure boat seat is fixed with the torque sensor for measuring duplicate rows chain expanding force, institute in its lower end Stating lifting decelerator structure includes being fixed on the chassis for offering step through-hole of body table bottom, transmission gear wheel and screw mandrel, Transmission gear wheel open up center screw screw mandrel transmission engagement, the axially extending necking segment in its upper end of the center screw it is spacing In the step through-hole, the top of screw mandrel passes this necking segment and is fixed on the bottom of torque sensor, and screw mandrel is solid in its bottom If guide stub shaft be slidedly arranged in the guiding fixed plate with long guiding hole, transmission gear wheel by loaded on its output shaft of lifting motor On output pinion engaged transmission.

2. the monocyclic bending force test machine of hoisting chain according to claim 1, it is characterised in that：Also include for controlling to swim The descending limit switch of descending extreme position is taken turns, cylindricality guide rail is housed between the back and body table and this is fixed on Guide-rail plate on cylindricality guide rail, descending limit switch is fixed on this cylindricality guide rail, the position-limit foot set on pleasure boat seat It is slideably positioned in the sliding space constituted between cylindricality guide rail and guide-rail plate, and position-limit foot is relative with this descending limit switch Should.

3. the monocyclic bending force test machine of hoisting chain according to claim 1 and 2, it is characterised in that：It is described enter chain rivet wheel What component included entering loaded on back sprocket shaft, rotation be arranged at that this enters on sprocket shaft enters chain wheel portion and transmission gear； It is described go out chain shaft wheel assembly there is identical structure with chain shaft wheel assembly is entered.

4. the monocyclic bending force test machine of hoisting chain according to claim 3, it is characterised in that：It is described enter chain shaft wheel assembly In enter chain wheel portion and transmission gear be a single piece；It is described go out chain shaft wheel assembly in the chain wheel portion that goes out be with transmission gear One single piece.