CN103663048A - Connecting structure of lifting chain and counter weight - Google Patents
Connecting structure of lifting chain and counter weight Download PDFInfo
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- CN103663048A CN103663048A CN201310507434.6A CN201310507434A CN103663048A CN 103663048 A CN103663048 A CN 103663048A CN 201310507434 A CN201310507434 A CN 201310507434A CN 103663048 A CN103663048 A CN 103663048A
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Abstract
The invention relates to a lift, and provides a connecting structure of a lifting chain and a counter weight. The connecting structure of the lifting chain and the counter weight comprises a first connecting piece and a second connecting piece which are used for hanging the counter weight on the lifting chain. The second connecting piece is used for hanging the counter weight on the lifting chain when the first connecting piece is broken. According to the connecting structure of the lifting chain and the counter weight, after the connecting pieces for connecting the counter weight and the lifting chain are broken, the counter weight and the lifting chain can still be connected together for conducting normal work, and the problems that safety accidents can happen and normal work can not be conducted after the connecting pieces for connecting the counter weight and the lifting chain are broken in an existing connecting mode are solved.
Description
Technical field
The present invention relates to lifting mechanism, relate in particular to a kind of lifting chain and counterweight connection structure.
Background technology
In the production process of automobile etc., elevator is as the part in gathering chain conveyer, turning linked to and carrying for workpiece (vehicle body).Elevator is in rising, decline process, by actuating device, to lifting chain, provide power, one end of lifting chain by attaching parts link together with counterweight, the other end is connected workpiece, counterweight keeps balance by self gravitation and workpiece (vehicle body) gravity, guarantees that elevator normally moves.In China Patent No., be 2012200042830, name is called in the patent document of " counterweight detecting device and weight-lifting equipment " and discloses a kind of elevator.Elevator rises for a long time, in decline process, attaching parts is subject to the application force of lifting chain and counterweight for a long time, when certain is when attaching parts cannot bear shearing force in a flash, can cause attaching parts fracture, and after attaching parts fracture, produces the safety misadventure that counterweight and workpiece fall.In order to prevent attaching parts fracture, produce safety misadventure, existing method is for increasing the intensity of attaching parts or fender guard being set.By improving the intensity of attaching parts, can only reduce the probability of attaching parts fracture, still can not avoid producing installation accident after attaching parts fracture.In Chinese Patent Application No., be 2012104777231, name is called to disclose in the patent document of " weight machinery Anti-dropping safety fender guard " and a kind ofly can after attaching parts fracture, starts the device of safety protection function, but this device can only prevent counterweight whereabouts and can not make elevator still can normally work after attaching parts fracture.
Summary of the invention
The invention provides counterweight and lifting chain after a kind of attaching parts fracture that connects counterweight and lifting chain still can link together lifting chain and the counterweight connection structure of normal work, solved the problem that existing connection mode can generation safety misadventure after the attaching parts fracture that connects counterweight and lifting chain and can not normally be worked.
Above technical matters solves by following technical proposal: a kind of lifting chain and counterweight connection structure, comprise balance weight hanging in the first attaching parts and second attaching parts of lifting chain, described the second attaching parts for when the first attaching parts fracture by balance weight hanging in lifting chain." lifting chain " comprises the parts such as chain, rope and band, is not the chain that refers to narrow sense.Under normal circumstances, counterweight hangs on lifting chain by the first attaching parts and the second attaching parts does not play suspension effect to counterweight, and after the first attaching parts fracture, it is separated that counterweight and lifting chain produce, now the second attaching parts stressed and by balance weight hanging in lifting chain.
The present invention also comprises link span, counterweight storage rack, control unit, standby bolt storage holder, standby nut storage holder, bolt and nut assemble mechanism and the sensor that is connected in lifting chain, described link span is provided with connecting bore, described counterweight storage rack is provided with lower connecting bore, described the first attaching parts comprises the perpendicular screw bolt and nut of putting, described bolt links together with described nut thread after passing described upper connecting bore and lower connecting bore, and described counterweight storage rack hangs on described link span by described the first attaching parts; Described sensor is for feeding back to described control unit by the information of the first attaching parts fracture; Described control unit is being for knowing described first attaching parts when fracture, controls described bolt and nut assemble mechanism and removes, takes out standby nut from standby nut storage holder, takes out standby bolt from standby bolt storage holder, standby bolt is linked together with standby nut after through upper connecting bore and lower connecting bore residuing in the first attaching parts remains in upper connecting bore or lower connecting bore.Realized the automatic replacing of the first attaching parts.Sensor can be pressure sensor or displacement pickup, and stressed variation or the change in displacement between link span and counterweight storage rack by the second attaching parts judges whether the first attaching parts ruptures.
As preferably, described standby bolt storage holder is provided with bolt outlet, described standby nut storage holder is provided with nut outlet, described bolt and nut assemble mechanism comprises bolt transfer device, nut transfer device and nutting mechanism, the lifting rotation mechanism that described bolt transfer device comprises clamping device and drives clamping device lifting and drive clamping device to swing between bolt outlet and upper connecting bore, described nut transfer device comprises push rod, be rotationally connected with the nut fixed cover of push rod, by push rod drive nut fixed cover mobile translation mechanism between nut outlet and lower connecting bore, and the lifting mechanism that drives push rod lifting, described nutting mechanism comprises the motor that the external toothing being arranged on described nut fixed cover outer peripheral face, the gear coordinating with external toothing and driven wheel rotate, and the axis of nut fixed cover is parallel with the axis of lower connecting bore.Simple and compact for structure.
As preferably, described standby nut storage holder is provided with the nut containing cavity that splices along the vertical direction and deposit for nut, described nut outlet is positioned at described standby nut storage holder bottom, described nut transfer device also comprises nut falling stop plate and makes nut falling stop plate cover the retainer spring in the outlet of described nut, and described nut falling stop plate links together with described push rod by described retainer spring.Can be by the deadweight of standby nut and realize standby nut and transfer in nut fixed cover from nut containing cavity.Can reduce energy consumption and improve structural compactness.
As preferably, described nut containing cavity is the regular hexagon with standby nut shape coupling.In the time of in standby nut is put into nut containing cavity, without the directivity of considering nut, comfort feature during use is good.
As preferably, described clamping device refers to cylinder for folder, and described lifting rotation mechanism is rotation and lifting cylinder, and described translation mechanism and lifting mechanism are all telescopic cylinder.By air cylinder driven, be not easy to produce weeping, environmental protection, does not drive with motor, and safety is good.
As preferably, described standby bolt storage holder is provided with arranges bolt storage tank and the bolt horizontal sliding spring of depositing with vertical status level for bolt, and described bolt outlet is positioned at one end of described bolt storage tank roof.Convenient while bolt being shifted and being worn from standby bolt storage holder in connection.
As preferably, the section of described bolt storage tank is " T " font with standby bolt coupling.In the time of can avoiding bolt horizontal sliding spring to promote bolt, bolt produces deflection and topples over phenomenon, can improve the reliability of the present invention while working.
As preferably, in described bolt storage tank, be provided with to be positioned on the pressing plate of bolt outlet below and bolt and push away spring, one end of described pressing plate is connected in the diapire that upper end, the other end that described bolt above pushes away spring are articulated with described bolt storage tank.Comfort feature while taking out standby bolt is good.
As preferably, described the second attaching parts comprises one end hanger bar that the one in the two links together with described link span and clump weight storage rack, the other end of described hanger bar is the another one in the two and be provided with gib head through described link span and clump weight storage rack, the thread end that the distance of the described gib head described link span of distance and the clump weight storage rack another one in the two is less than described bolt stretches out the length of described upper connecting bore and lower connection, and described sensor setting is in described gib head.Good reliability.
The present invention has following advantage: in the time of can avoiding the first attaching parts fracture, counterweight produces accident separated and that cause with lifting chain and still can link together and normally work in the rear counterweight of the first connection fracture and lifting chain.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the local enlarged diagram at the A place of Fig. 1.
Fig. 3 is the local enlarged diagram at the B place of Fig. 1.
Fig. 4 is the schematic top plan view of embodiment mono-.
Fig. 5 is C-C cross-sectional schematic of the standby bolt storage holder in Fig. 4.
Schematic diagram when Fig. 6 embodiment mono-carries out the first attaching parts replacing.
Fig. 7 is the local enlarged diagram at the D place of Fig. 6.
Fig. 8 is the structural representation of the embodiment of the present invention two.
In figure: lifting chain 1, link span 2, upper connecting bore 21, counterweight storage rack 3, lower connecting bore 31, the first attaching parts 4, bolt 41, nut 42, standby bolt 43, standby nut 44, the first attaching parts remains 45, screw rod 46, tray 47, the second attaching parts 5, hanger bar 51, gib head 52, stop block 53, steel rope 54, standby bolt storage holder 6, bolt outlet 61, bolt storage tank 62, bolt horizontal sliding spring 63, pressing plate 64, on bolt, push away spring 65, standby nut storage holder 7, nut containing cavity 71, nut outlet 72, bolt transfer device 81, lifting rotation mechanism 811, clamping device 812, swing arm 813, fixed mount 814, nut transfer device 82, nut fixed cover 821, push rod 822, nut falling stop plate 823, translation mechanism 824, retainer spring 825, lifting mechanism 826, nutting mechanism 83, external toothing 831, gear 832, motor 833, sensor 9, gib head is apart from the distance L 1 of clump weight storage rack, the thread end of bolt stretches out the length L 2 of connecting bore and lower connection.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
Embodiment mono-, referring to Fig. 1, lifting chain and a counterweight connection structure, comprise the link span 2, counterweight storage rack 3, the first attaching parts 4, the second attaching parts 5, standby bolt storage holder 6, standby nut storage holder 7 and the bolt and nut assemble mechanism that are connected in lifting chain 1.
The second attaching parts 5 comprises hanger bar 51 and gib head 52.The upper end of hanger bar 51 links together with link span 2.The lower end of hanger bar 51 links together through the rear same gib head 51 of counterweight storage rack 3.The thread end that gib head is less than bolt apart from the distance L 1 of counterweight storage rack stretches out the length L 2 of upper connecting bore and lower connection.Sensor 9 is installed on gib head 52.Sensor 9 is pressure sensor.Sensor 9 is that switch is also passable.
Standby bolt storage holder 6 is arranged at link span 2.Standby bolt storage holder 6 is provided with bolt outlet 61, bolt storage tank 62 and bolt horizontal sliding spring 63.Bolt outlet 61 is positioned at the left end of bolt storage tank 62 roofs.Bolt horizontal sliding spring 63 is positioned at the right-hand member of bolt storage tank 62.The mode that standby bolt 43 is arranged with vertical status level leaves in bolt storage tank 62.
Standby nut storage holder 7 is arranged at counterweight storage rack 3.Standby nut storage holder 7 is provided with nut containing cavity 71 and nut outlet 72.Nut containing cavity 71 extends along the vertical direction.Nut containing cavity 71 is the regular hexagon with standby nut 44 form fit.The mode that standby nut 44 splices along the vertical direction leaves in nut containing cavity 71.Nut outlet 72 is positioned at the bottom of standby nut storage holder 7 and is docking together with nut containing cavity 71.
Bolt and nut assemble mechanism comprises bolt transfer device 81, nut transfer device 82He nutting mechanism 83.Bolt transfer device 81 comprises lifting rotation mechanism 811, clamping device 812, swing arm 813 and fixed mount 814.Lifting rotation mechanism 811 is rotation and lifting cylinder.Clamping device 812 refers to cylinder for pressing from both sides.Clamping device 812 is connected in the piston rod of rotation and lifting cylinder by swing arm 813.
Referring to Fig. 2, nut transfer device 82 comprises nut fixed cover 821, push rod 822, nut falling stop plate 823, translation mechanism 824, retainer spring 825 and lifting mechanism 826.Nut fixed cover 821 is rotationally connected with push rod 822.The axis of nut fixed cover 821 is parallel with the axis of lower connecting bore (referring to Fig. 7).Nut falling stop plate 823 is connected on push rod 822 by retainer spring 825.Translation mechanism 824 is telescopic cylinder.Push rod 822 is fixed on the piston rod of the telescopic cylinder that forms translation mechanism 824.Lifting mechanism 826 is telescopic cylinder.The cylinder body that forms the telescopic cylinder of translation mechanism 824 links together with the piston rod that forms the telescopic cylinder of lifting mechanism 826.The cylinder body and the counterweight storage rack 3 that form the telescopic cylinder of lifting mechanism 826 are fixed together.Nutting mechanism 83 comprises external toothing 831, gear 832 and motor 833.External toothing 831 be arranged on the outer peripheral face of nut fixed cover 821 and and nut fixed cover 821 coaxial.Gear 832 is fixed on the power take-off shaft of motor 833.Motor 833 is fixed on counterweight storage rack 3.
Referring to Fig. 3, in bolt storage tank 62, be provided with on the pressing plate 64 that is positioned under bolt outlet and bolt and push away spring 65.The left end of pressing plate 64 is connected to the upper end that bolt above pushes away spring 65.The right-hand member of pressing plate 64 is articulated with the diapire of bolt storage tank 62.
Referring to Fig. 4, lifting rotation mechanism 811 is connected on standby bolt storage holder 6 by fixed mount 814.The first attaching parts 4 and bolt outlet 61 is positioned at take on the circumference that lifting rotation mechanism 811 is the center of circle.
Referring to Fig. 5, the section of bolt storage tank 62 is " T " font with standby nut 43 couplings.
Referring to Fig. 6, the present invention also comprises control unit (not drawing in figure).Safety precaution process of the present invention is: during use, counterweight is contained in counterweight storage rack 3.When the first attaching parts fracture, nut and the bolt thread end Automatic-falling under the effect of gravity linking together with nut, counterweight storage rack 3 drops downwards, when falling gib head 52 and hook counterweight storage rack 3, thereby counterweight storage rack 3 stops dropping by the second attaching parts 5 from being newly suspended on lifting chain 1, and sensor 9 is squeezed and detects the first attaching parts fracture and this information is fed back to control unit.Control unit, when knowing the first attaching parts fracture, is controlled bolt and nut assemble mechanism and is carried out following action:
Referring to Fig. 7, translation mechanism 824 moves to left push rod 822, and push rod 822 drive nut fixed covers 821 move to left, and nut fixed cover 821 makes standby nut 44 with lower connecting bore 31 alignment, and external toothing 831 and gear 832 mesh together.Lifting rotation mechanism 811 declines after making clamping device 812 swing to the same connecting bore 21 alignment again, and clamping device 812 is clamped the first attaching parts remains 45 that residue in upper connecting bore; Lifting rotation mechanism 811 swings to the same connecting bore 21 after making clamping device 812 increase staggers, and clamping device 812 unclamps the clamping action to the first attaching parts remains 45, thereby realize, removes the first attaching parts remains 45.Lifting rotation mechanism 811 declines after making clamping device 812 swing to same bolt outlet 61 alignment again, clamping device 812 clamps the standby nut 43 that is arranged in bolt outlet 61 in standby nut storage holder 6.Lifting rotation mechanism 811 rises to clamping device 812 and after standby nut 43 takes out from standby nut storage holder 6, swings to the same connecting bore 21 alignment of standby bolt 43; Under the effect of bolt translation spring 63, next standby bolt move left to same bolt outlet 61 alignment and under bolt above pushes away the effect of spring 65 and pressing plate 64, the head of this standby nut stretches out from bolt outlet 61.Thereby lifting rotation mechanism 811 is docked on standby nut 44 after making clamping device 812 declines that standby bolt 43 is passed to upper connecting bore 21 and lower connecting bore 31.Motor 833 driven wheels 832 rotate, gear 832 rotates by external toothing 831 drive nut fixed covers 821, nut fixed cover 821 drives standby nut 44 to rotate, standby nut 44 is screwed on standby bolt 43,, after sensor 9 detects pressure and gets back to initial value the second attaching parts 5 loses the suspension effect of counterweight storage rack 3, motor 833 stops operating.Lifting mechanism 826 drives translation mechanism 824 and push rod 822 to decline, in the effect of gravity, next plays decline to nut fixed cover 821, and nut falling stop plate 823 covers always in nut outlet 71 the standby nut in standby nut storage holder 7 can not dropped under the effect of retainer spring 825.The standby nut that translation mechanism 824 is shifted to the right to nut fixed cover 821 to be located under lower connecting bore behind the below that drops to nut fixed cover 821 and be arranged in the standby bolt that is located in lower connecting bore staggers, then lifting mechanism 826 makes nut fixed cover 821 rise to elemental height, translation mechanism 824 is shifted to the right to nut fixed cover 821 to be docked at nut to export 71 belows, under Action of Gravity Field, next standby nut drops in nut fixed cover 821.
Embodiment bis-, and referring to Fig. 8, a kind of lifting chain and counterweight connection structure, comprise the first attaching parts 4 and the second attaching parts 5.The first attaching parts 4 comprises screw rod 46 and tray 47.The second attaching parts 5 comprises steel rope 54 and stop block 53.The upper end of screw rod 46 is fixed together with lifting chain 1, and the lower end of screw rod 46 is threaded togather through the rear same tray 47 of counterweight 11.Counterweight 11 is pressed on tray 47.The upper end of the second attaching parts 5 links together with lifting chain 1.The lower end of the second attaching parts 5 links together through the rear same stop block 53 of counterweight 11.When screw rod 46 does not rupture, counterweight 11 hangs on lifting chain 1 by the first attaching parts 4.When screw rod 46 fracture, only tray 53 plays the effect that prevents that steel rope 54 is separated with counterweight 11, makes counterweight 11 hang on lifting chain 1 by the second attaching parts 5.
Claims (10)
1. a lifting chain and counterweight connection structure, comprise balance weight hanging in first attaching parts (4) of lifting chain (1), it is characterized in that, also comprise the second attaching parts (5), described the second attaching parts (5) for first attaching parts when fracture by balance weight hanging in lifting chain.
2. lifting chain according to claim 1 and counterweight connection structure, it is characterized in that, also comprise the link span (2) that is connected in lifting chain, counterweight storage rack (3), control unit, standby bolt storage holder (6), standby nut storage holder (7), bolt and nut assemble mechanism and sensor (9), described link span (2) is provided with connecting bore (21), described counterweight storage rack (3) is provided with lower connecting bore (31), described the first attaching parts (4) comprises perpendicular bolt (41) and the nut (42) of putting, described bolt (41) is threaded togather with described nut (42) after passing described upper connecting bore (21) and lower connecting bore (31), described counterweight storage rack (3) hangs on described link span (2) by described the first attaching parts (4), described sensor (9) is for feeding back to described control unit by the information of the first attaching parts fracture, described control unit is being for knowing described first attaching parts when fracture, controls described bolt and nut assemble mechanism and removes, takes out standby nut from standby nut storage holder and from standby bolt storage holder, take out standby bolt and standby bolt is linked together with standby nut after through upper connecting bore and lower connecting bore residuing in the first attaching parts remains in upper connecting bore or lower connecting bore.
3. lifting chain according to claim 2 and counterweight connection structure, it is characterized in that, described standby bolt storage holder (6) is provided with bolt outlet (61), described standby nut storage holder (7) is provided with nut outlet (72), described bolt and nut assemble mechanism comprises bolt transfer device (81), nut transfer device (82) and nutting mechanism (83), the lifting rotation mechanism (811) that described bolt transfer device (81) comprises clamping device (812) and drives clamping device lifting and drive clamping device to swing between bolt outlet and upper connecting bore, described nut transfer device (82) comprises push rod (822), be rotationally connected with the nut fixed cover (821) of push rod, by push rod drive nut fixed cover mobile translation mechanism (824) between nut outlet and lower connecting bore, and the lifting mechanism (826) that drives push rod lifting, described nutting mechanism (83) comprises the motor (833) that the external toothing (831) being arranged on described nut fixed cover outer peripheral face, the gear (832) coordinating with external toothing and driven wheel rotate, and the axis of nut fixed cover (821) is parallel with the axis of lower connecting bore (31).
4. lifting chain according to claim 3 and counterweight connection structure, it is characterized in that, described standby nut storage holder (7) is provided with the nut containing cavity (71) that splices along the vertical direction and deposit for nut, described nut outlet (72) is positioned at described standby nut storage holder (7) bottom, described nut transfer device (82) also comprises nut falling stop plate (823) and makes nut falling stop plate cover the retainer spring (825) in the outlet of described nut, and described nut falling stop plate (523) links together with described push rod (822) by described retainer spring (825).
5. lifting chain according to claim 4 and counterweight connection structure, is characterized in that, described nut containing cavity (71) is the regular hexagon with standby nut (44) form fit.
6. lifting chain according to claim 3 and counterweight connection structure, it is characterized in that, described clamping device (812) refers to that for pressing from both sides cylinder, described lifting rotation mechanism (811) are rotation and lifting cylinder, and described translation mechanism (824) and lifting mechanism (826) are all telescopic cylinder.
7. according to lifting chain and counterweight connection structure described in claim 2 or 3 or 4 or 5 or 6, it is characterized in that, described standby bolt storage holder (6) is provided with arranges bolt storage tank (62) and the bolt horizontal sliding spring (63) of depositing with vertical status level for bolt, described bolt outlet (61) is positioned at one end of described bolt storage tank (62) roof.
8. lifting chain according to claim 7 and counterweight connection structure, is characterized in that, the section of described bolt storage tank (62) is " T " font with standby bolt (43) coupling.
9. lifting chain according to claim 7 and counterweight connection structure, it is characterized in that, in described bolt storage tank (62), be provided with to be positioned on the pressing plate (64) of bolt outlet below and bolt and push away spring (65), one end of described pressing plate (64) is connected in the diapire that upper end, the other end that described bolt above pushes away spring (65) are articulated with described bolt storage tank.
10. according to lifting chain and counterweight connection structure described in claim 2 or 3 or 4 or 5 or 6, it is characterized in that, described the second attaching parts (5) comprises one end hanger bar (51) that the one in the two links together with described link span and clump weight storage rack, the other end of described hanger bar (51) is the another one in the two and be provided with gib head (52) through described link span and clump weight storage rack, the thread end that the distance (L1) of the described gib head described link span of distance and the clump weight storage rack another one in the two is less than described bolt stretches out the length (L2) of described upper connecting bore and lower connection, described sensor (9) is arranged at described gib head (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507434.6A CN103663048B (en) | 2013-10-25 | 2013-10-25 | Lift chain and counterweight connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507434.6A CN103663048B (en) | 2013-10-25 | 2013-10-25 | Lift chain and counterweight connection structure |
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| CN103663048A true CN103663048A (en) | 2014-03-26 |
| CN103663048B CN103663048B (en) | 2015-11-04 |
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| Publication number | Publication date |
|---|---|
| CN103663048B (en) | 2015-11-04 |
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Effective date of registration: 20200610 Address after: 310051 Jiangling Road, Hangzhou, Zhejiang, No. 1760, No. Co-patentee after: Chengdu Geely Automobile Manufacturing Co., Ltd Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: 310051 Jiangling Road, Hangzhou, Zhejiang, No. 1760, No. Co-patentee before: CHENGDU GAOYUAN AUTOMOBILE INDUSTRY Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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