CN105972201A - Improved locking device for main rotating shaft and application - Google Patents
Improved locking device for main rotating shaft and application Download PDFInfo
- Publication number
- CN105972201A CN105972201A CN201610287689.XA CN201610287689A CN105972201A CN 105972201 A CN105972201 A CN 105972201A CN 201610287689 A CN201610287689 A CN 201610287689A CN 105972201 A CN105972201 A CN 105972201A
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- Prior art keywords
- main shaft
- ratchet
- disk
- attaching nut
- rotating shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses an improved locking device for a main rotating shaft. The device is characterized in that a torsional spring which can overcome screwing frictional resistance between the main rotating shaft and a connecting nut is additionally arranged between the connecting nut and the main rotating shaft so as to prevent the main rotating shaft from uncontrollable high-speed rotating caused by human errors; the connecting nut can overcome the thread frictional force relative to the main rotating shaft under the effect of the inverted torsion of the torsional spring, and thus the connecting nut can be rotated relative to the main rotating shaft, and as a result, the main rotating shaft can be braked. The invention also provides another scheme for locking the main rotating shaft. The scheme is characterized in that an inner pawl which can be limited through an elastic connector is arranged on a flywheel disc; in case that the main rotating shaft is subjected to uncontrollable high-speed rotating, the outward centrifugal force of the inner pawl on the flywheel disc can be utilized to overcome the tensioning force of the elastic connector, thus the inner pawl can be locked to an inner ratchet wheel, and as a result, the function of locking the main rotating shaft can be further achieved.
Description
Technical field
The present invention relates to the device of a kind of locking, in particular for a kind of device that main shaft is carried out locking.
Background technology
The problem that the chopper of existing switch cubicle typically solves chopper turnover switch cubicle by lifting transfer car(buggy) (lifting handcart), see published patent documentation CN 201694790U, disclose the lifting transfer car(buggy) of a kind of band reduction gear, as shown in Figure 1, wind 1a by people's this elevating mechanism of hand-turning, wind 1a will drive main shaft 4a to rotate, thus drive main shaft 4a to drive little gear 5a to rotate；By engaging of the canine tooth 31a of little gear 5a and duplicate gear 3a, the little tooth 32a of duplicate gear 3a is meshed with gear wheel 6a, realize double reduction, wire wheel 7a is driven to rotate by gear wheel 6a, thus drive the steel wire rope lifting being wrapped on wire wheel 7a, thus sliding guides slowly promotes or lands, solve the safety problem that chopper is transported outside cabinet, but use this kind of scheme, when transporting chopper or other objects, staff cannot depart from wind 1a, and otherwise object is due to the reason of deadweight, can fall voluntarily, make transferring objects cause damage.
nullFor drawbacks described above，Industry develops the lifting handcart of a kind of fall arrest，See published patent documentation CN 204067962U，Such as Fig. 2-1、Shown in Fig. 2-2，The reduction gear 1b of this lifting handcart has additional outer ratchet 19b、Ratchet 18b、Brake block 3b and spline dish 20b，Handle 13b drives main shaft 17b to rotate，Main shaft 17b is moved to the left relative to attaching nut 171b，The brake block 3b finally making outer ratchet 19b both sides abuts frictional fit with spline dish 20b and attaching nut's 171b end face respectively，The rotation of described main shaft 17b is passed to outer ratchet 19b，When handle 13b rotates forward，Interfere owing to outer ratchet 19b will not produce with ratchet 18b，Supporting plate thus without impact lifting handcart rises，Even if loosing one's grip the most suddenly，Outer ratchet 19b can interfere with ratchet 18b and be engaged，The object lifted on handcart is avoided accidentally to fall；nullWhen handle 13b inverts，Main shaft 17b moves right relative to attaching nut 171b，Brake block 3b and attaching nut 171b is mutually disengaged with spline dish 20b，Outer ratchet 19b and ratchet 18b produces dislocation，Interference will not be produced each other，Pallet can slowly fall，The most once handle unclamps，Owing to carrying object on pallet，The angular velocity moment of main shaft 17b strengthens，Owing to there is angular velocity difference in theory and between attaching nut 171b，Can automatically order about attaching nut 171b overcomes the screw rod frictional force between main shaft 17b to move to right relative to main shaft 17b，The brake block 3b making outer ratchet 19b both sides abuts frictional fit with spline dish 20b and attaching nut's 171b end face the most respectively，Promote outer ratchet 19b to interfere with ratchet 18b to be engaged，Avoid the risk that pallet object falls，But in practice，Error due to Workpiece Machining Accuracy，In handle Umklapp process，Once handle unclamps，Attaching nut 171b tend not to overcome the screw rod frictional force between main shaft 17b and with main shaft 17 synchronous axial system，Thus friction can not be abutted by driving brake sheet 3b and spline dish 20b and attaching nut 171b，Ultimately result in brake failure，Easily there is security incident.
In view of this, the present inventor furthers investigate for drawbacks described above of the prior art, then has this case to produce.
Summary of the invention
Present invention aim at providing the main shaft locking system that a kind of braking ability is good, safety coefficient is high.
The secondary objective of the present invention is to provide a kind of lifting handcart driving means using this main shaft locking system.
For achieving the above object, the solution of the present invention is:
The main shaft locking system of a kind of improvement, is provided with lockable mechanism and attaching nut in the side of main shaft, and described lockable mechanism includes outer ratchet, ratchet, spline dish and at least one brake block；Described main shaft is provided with a step surface, and miner diameter end at this step surface is the most rotatable is equipped with spline dish, outer ratchet and brake block；Described attaching nut and main shaft are mutually spirally connected and are arranged on the outer end of brake block, and described ratchet is arranged on the outer end of ratchet；During its original state, there is spacing in attaching nut and brake block, simultaneously ratchet and outer ratchet mutual dislocation；One external force drives main shaft to rotate, and has additional the torsion spring for overcoming the frictional resistance that is spirally connected produced between main shaft and attaching nut between attaching nut and main shaft.
Further, the most affixed spring spool in the outer end of attaching nut, this spring spool is placed on main shaft, and described torsion spring is arranged between spring spool and main shaft.
Further, the head and the tail of described torsion spring are respectively provided on two sides with an outside and inside bending part, and described spring spool is towards the end of attaching nut at least provided with a groove, and this groove is mutually nested with the outside bending part of torsion spring to be coordinated；Described main shaft is provided with a radial groove in the position being positioned at the inside bending part of torsion spring, and this radial groove is mutually nested with the inside bending part of torsion spring to be coordinated.
Further, described spline dish is provided with one for being nested with the extension of brake block, ratchet along main shaft axial location.
Further, the both sides of ratchet include two brake blocks, respectively first brake sheet and the second brake block outside.
Further, it also includes a flywheel arrestment mechanism, described flywheel arrestment mechanism includes flywheel disk and a handle ratchet wheel, in this flywheel disk is arranged on handle ratchet wheel and it is rigidly connected with attaching nut, on flywheel disk, it is provided with least one set ratchet and Flexible Connector simultaneously, this ratchet one end is by hinge on flywheel disk, and the other end connects Flexible Connector, and the tightening force of this Flexible Connector cannot overcome orders about the outside centrifugal force that ratchet produces owing to flywheel disk quickly rotates.
Further, described flywheel disk is made up of the first disk and the second disk, and described interior ratchet and Flexible Connector are arranged between the first disk and the second disk.
Further, on the inner face of the first disk or the second disk, trisection is provided with 3 groups of handle ratchet wheels and Flexible Connector, and described Flexible Connector is extension spring.
The present invention also provides for the lifting handcart Power Drive Unit of a kind of improvement, it includes hands handle, cabinet, main shaft, train of reduction gears and wire wheel, if described main shaft is horizontally placed in the middle part of cabinet by being nested with dry bearing level, it is driven to rotate by external handle, the middle part of this main shaft is provided with a step surface, at least provided with a gear on the bigger diameter end of this step surface, this gear cooperates with train of reduction gears, then the wire wheel being placed on main shaft bigger diameter end is driven to rotate, the cabinet housing at wire wheel top is provided with a hollow-out parts, it also includes the arbitrary main shaft locking system as described in aforementioned, this main shaft locking system is arranged on the miner diameter end of main shaft.
After using such scheme, torsion spring is set up between attaching nut and main shaft, avoid main shaft and cause uncontrollable high speed rotating due to human negligence, the reverse torsion of torsion spring just helps attaching nut to overcome the thread friction power of itself and main shaft, attaching nut is rotated relative to main shaft, and then realizes the braking of main shaft；Present invention also offers the scheme of another main shaft locking simultaneously, carry out, by Flexible Connector, the interior ratchet that retrains by being provided with on flywheel disk, once there is uncontrollable high speed rotating in main shaft, the outside centrifugal force of the interior ratchet on flywheel disk can overcome the tightening force of its Flexible Connector, and mutually lock with handle ratchet wheel, thereby further ensure that the realization of main shaft latch functions；One lifting handcart Power Drive Unit uses aforementioned main shaft locking system, it is possible to be substantially reduced on wire wheel the security incident that the weight hung causes accident to drop due to human negligence.
Accompanying drawing explanation
Fig. 1 is to commonly use a lifting handcart Power Drive Unit STRUCTURE DECOMPOSITION figure；
Fig. 2-1 is the assembling schematic diagram commonly using two lifting handcart Power Drive Units；
Fig. 2-2 is the semi-cutaway commonly using two lifting handcart Power Drive Units；
Fig. 3 is the axonometric drawing that the present invention is used in lifting handcart Power Drive Unit；
Fig. 4 is that the present invention is used in lifting handcart Power Drive Unit three-dimensional exploded view；
Fig. 5-1 is the semi-cutaway that the present invention is used in lifting handcart Power Drive Unit original state；
Fig. 5-1A is the partial enlarged drawing in A portion in Fig. 5-1 of the present invention；
Fig. 5-2 is the semi-cutaway that the present invention is used in lifting handcart Power Drive Unit duty；
Fig. 6 is that the present invention is used in the axonometric drawing of main shaft on lifting handcart Power Drive Unit；
Fig. 7 is the parts explosion of attaching nut of the present invention, torsion spring and spring spool；
Fig. 8 is main shaft of the present invention, attaching nut, torsion spring and spring spool assembling semi-cutaway；
Fig. 9 is the parts explosion of flywheel arrestment mechanism of the present invention；
Figure 10 is the assembling schematic diagram of flywheel arrestment mechanism of the present invention.
Detailed description of the invention
Below by main shaft locking system as a example by the concrete utilization of lifting handcart driving means, in conjunction with accompanying drawing, the present invention is elaborated.
As Fig. 3,4, shown in 5-1,5-2, a kind of lifting handcart Power Drive Unit of improvement, it includes reduction gear box 1 and handle 2, includes cabinet 10, train of reduction gears, main shaft 11, outer ratchet 12, ratchet 13, spline dish 14, first brake sheet the 15, second brake block 16, attaching nut 17 and wire wheel 100 in described reduction gear box 1；This train of reduction gears can be similar to as commonly used being engaged each other by a duplicate gear with the canine tooth on main shaft 11 and little tooth and constituting (see Fig. 1) disclosed in 1, reaches the purpose slowed down；Or as Fig. 5, disclosed in 6 by being provided with a gear 111 on main shaft 11, this gear 111 engages each other with double-reduction gear 112, the little increment of this double-reduction gear 112 engages each other with output gear 113 again, thus realize the change of rotating speed, the rotation of the final wire wheel 100 driven with output gear 13 linkage, in fact industry there is also the multiple scheme engaging each other realization deceleration by gear train, tires out the most one by one at this and states.
The middle part of this main shaft 11 is provided with a step surface 114, the bigger diameter end of this step surface 114 is provided with aforesaid train of reduction gears and wire wheel, its miner diameter end is nested with spline dish 14, first brake sheet 15, outer ratchet 12 and the second brake block 16 the most rotationally, in order to avoid first brake sheet 15, outer ratchet 12 and the second brake block 16 produce friction destruction to main shaft 11 axle portion, spline dish 14 is provided with an extension 141 along main shaft 11 axial location, and described first brake sheet 15, outer ratchet 12 and the second brake block 16 are all nested with on this extension.
Described attaching nut 17 is mutually spirally connected with main shaft 11 and is arranged on the outer end of the second brake block 16, the affixed spring spool 19 of opposite side of this attaching nut 17, the outer end of spring spool 19 is connected with handle 2, this spring spool 19 is placed on main shaft 11, arranges torsion spring 18 between spring spool 19 and main shaft 11；As shown in Figure 6,7, the head and the tail of described torsion spring 18 are respectively provided on two sides with an outside and inside bending part 181,182, described spring spool 19 is towards the end of attaching nut 17 at least provided with a groove 191, and this groove 191 is mutually nested with the outside bending part 181 of torsion spring to be coordinated；Described main shaft 11 is provided with a radial groove 115 in the position being positioned at the inside bending part 182 of torsion spring 18, this radial groove 115 is mutually nested with the inside bending part 182 of torsion spring 18 to be coordinated, by above-mentioned cooperation, may insure that fixing being placed between pogo barrel 19 and main shaft 11 of torsion spring 18, owing to being mutually spirally connected between pogo barrel 19 and attaching nut 17, indirectly realize between attaching nut 17 and main shaft 11, be provided with torsion spring 18.
nullWhen original state，Such as Fig. 5-1，There is interval S in this attaching nut 17 and the second brake block 16，Ratchet 13 is arranged on the outer end of outer ratchet 12，And with outer ratchet 12 mutual dislocation，When handle 2 drives attaching nut 17 to rotate，Attaching nut 17 produces relative rotation with main shaft 11 until the end face of the end face of attaching nut 17 and the second brake block 16 abuts，Finally make spline dish 14 together with step surface 114 tight abutment of main shaft 11，Now attaching nut 17、First brake sheet 15、Second brake block 16、Outer ratchet 12 is locked together mutually，The rotatory force being applied to handle 2 is transferred to main shaft 11，Then main shaft 11 is driven to rotate，Now ratchet 13 is relative with outer ratchet 12，When handle 2 rotates clockwise，Ratchet 13 and outer ratchet 12 will not produce relative interference，Handle 2 drives train of reduction gears to operate；When handle 2 stops operating, action of gravity can make the decline of lifting body, down-force can make main shaft 11 produce counterclockwise rotating force by steel wire rope, now attaching nut 17, first brake sheet the 15, second brake block 16 and outer ratchet 12 are locked mutually integral, meeting one acts as and rotates counterclockwise, owing to ratchet 13 directly prevents rotating counterclockwise of outer ratchet 12, it is ensured that the object of rise would not fall.
When handle 2 rotates counterclockwise, attaching nut 17 drives main shaft 11 to rotate counterclockwise, band animal body declines, now the rotation direction of handle 2 is in opposite direction with the torsion of torsion spring 18, the torsion of handle 2 overcomes the lashing force of torsion spring 18, attaching nut 17 just unclamps with the second brake block 16, and outer ratchet 12 will not rotate counterclockwise with attaching nut 17, and outer ratchet 12 and ratchet 13 do not interfere with attaching nut 17 and rotate counterclockwise.nullObject just can decline smoothly，If in practical operation，Due to operator's inadvertent，Do not control handle 2 well，The object that wire wheel 100 hangs is due to deadweight tenesmus，And order about main shaft 11 by steel wire rope and produce same counterclockwise rotating force，Now owing to arrange torsion spring this specific embodiment of 18(between attaching nut 17 and main shaft 11 be to be arranged between the rigidly connected pogo barrel of attaching nut 17 19 and main shaft 11 by torsion spring 18)，The reverse torsion of torsion spring 18 just helps attaching nut 17 to overcome the thread friction power of itself and main shaft 11，Make attaching nut 17 will not act as rotation counterclockwise with main shaft 11 1，But it is for the relative rotation with main shaft 11，Fast-holding the second brake block 16，Outer ratchet 12 and main shaft 11 make rotation counterclockwise in the lump，Mutually lock with ratchet 13，Make to lose handle 2 to control and do the object that freely falling body declines and can automatically stop.
The present invention also provides for another embodiment, on the basis of technique scheme, adds a flywheel arrestment mechanism, ensure that object is during the decline of non-artificial control, when aforementioned ratchet lost efficacy with outer ratchet locking, can carry out locking by flywheel arrestment mechanism, concrete structure is as follows:
nullSuch as Fig. 4、Fig. 5-1、Fig. 9、Shown in Figure 10，This flywheel arrestment mechanism 3 includes a flywheel disk 31 and handle ratchet wheel 32，Described handle ratchet wheel 32 is fixed on the inwall of cabinet 10 of reduction gear box 1，In this flywheel disk 31 is arranged on handle ratchet wheel 32 and it is rigidly connected with attaching nut 17，Described flywheel disk 31 is made up of the first disk 311 and the second disk 312，The inner face of the first disk 311 or the second disk 312 is provided with least one set ratchet 313 and Flexible Connector 314，This specific embodiment provides 3 groups of ratchets 313 and the extension spring 314 as Flexible Connector，It is evenly distributed on the inner face of the first disk 311 or the second disk 312，One end of this interior ratchet 313 is hinged on flywheel disk 31 by bearing pin 315，The other end connects Flexible Connector 314，Operation principle when the handle 2 lifting handcart driving means rotates clockwise is as mentioned before，It is not repeated；nullNeed when object rises to a height to decline，Rotary handle 2 counterclockwise，Object is allowed slowly to decline，If now human negligence，Cause handle 2 out of hand，If aforesaid torsion spring 18 still cannot time attaching nut 17 and main shaft 11 produce and rotate against，The most original main shaft 11 brake unit lost efficacy，Main shaft 11 can drive attaching nut 17 to do acceleration counterclockwise and rotate，Drive simultaneously and do acceleration rotation counterclockwise with attaching nut 14 rigidly connected flywheel disk 31，Owing to interior ratchet 313 is to be constrained on flywheel disk 31 by extension spring 314，But the rotation of accelerating counterclockwise of flywheel disk 31 makes interior ratchet 313 produce outside centrifugal force，The tightening force that this centrifugal force is inside more than Flexible Connector (extension spring) 312，Interior ratchet 313 is caused to swing out，And mutually lock with handle ratchet wheel 32，Main shaft 11 is made to stop operating，Avoid the object being suspended on wire wheel 100 to do freely falling body tenesmus cause damage and produce potential safety hazard.
In a word, above-described embodiment and diagram simply main shaft locking system is used in the explanation of lifting handcart driving means, and the product form of the non-limiting present invention and style, any person of an ordinary skill in the technical field is suitably changed what it did and modifies, and all should be regarded as the patent category without departing from the present invention.
Claims (9)
1. a main shaft locking system for improvement, is provided with lockable mechanism and attaching nut in the side of main shaft, and described lockable mechanism includes outer ratchet, ratchet, spline dish and at least one brake block；Described main shaft is provided with a step surface, and miner diameter end at this step surface is the most rotatable is equipped with spline dish, outer ratchet and brake block；Described attaching nut and main shaft are mutually spirally connected and are arranged on the outer end of brake block, and described ratchet is arranged on the outer end of ratchet；During its original state, there is spacing in attaching nut and brake block, simultaneously ratchet and outer ratchet mutual dislocation；One external force drives main shaft to rotate, it is characterised in that: between attaching nut and main shaft, have additional the torsion spring for overcoming the frictional resistance that is spirally connected produced between main shaft and attaching nut.
The main shaft locking system of a kind of improvement the most as claimed in claim 1, it is characterised in that: the most affixed spring spool in the outer end of attaching nut, this spring spool is placed on main shaft, and described torsion spring is arranged between spring spool and main shaft.
The main shaft locking system of a kind of improvement the most as claimed in claim 2, it is characterized in that: the head and the tail of described torsion spring are respectively provided on two sides with an outside and inside bending part, described spring spool is towards the end of attaching nut at least provided with a groove, and this groove is mutually nested with the outside bending part of torsion spring to be coordinated；Described main shaft is provided with a radial groove in the position being positioned at the inside bending part of torsion spring, and this radial groove is mutually nested with the inside bending part of torsion spring to be coordinated.
The main shaft locking system of a kind of improvement the most as claimed in claim 1, it is characterised in that: described spline dish is provided with one for being nested with the extension of brake block, ratchet along main shaft axial location.
The main shaft locking system of a kind of improvement the most as claimed in claim 1, it is characterised in that: the both sides of ratchet include two brake blocks, respectively first brake sheet and the second brake block outside.
The main shaft locking system of a kind of improvement the most as claimed in claim 1, it is characterized in that: it also includes a flywheel arrestment mechanism, described flywheel arrestment mechanism includes flywheel disk and a handle ratchet wheel, in this flywheel disk is arranged on handle ratchet wheel and it is rigidly connected with attaching nut, on flywheel disk, it is provided with least one set ratchet and Flexible Connector simultaneously, hinge is passed through on flywheel disk in this ratchet one end, the other end connects Flexible Connector, the tightening force of this Flexible Connector cannot overcome orders about the outside centrifugal force that ratchet produces owing to flywheel disk quickly rotates.
The main shaft locking system of a kind of improvement the most as claimed in claim 6, it is characterised in that: described flywheel disk is made up of the first disk and the second disk, and described interior ratchet and Flexible Connector are arranged between the first disk and the second disk.
The main shaft locking system of a kind of improvement the most as claimed in claim 7, it is characterised in that: on the inner face of the first disk or the second disk, trisection is provided with 3 groups of handle ratchet wheels and Flexible Connector, and described Flexible Connector is extension spring.
9. the lifting handcart Power Drive Unit of an improvement, it includes hands handle, cabinet, main shaft, train of reduction gears and wire wheel, if described main shaft is horizontally placed in the middle part of cabinet by being nested with dry bearing level, it is driven to rotate by external handle, the middle part of this main shaft is provided with a step surface, at least provided with a gear on the bigger diameter end of this step surface, this gear cooperates with train of reduction gears, then the wire wheel being placed on main shaft bigger diameter end is driven to rotate, the cabinet housing at wire wheel top is provided with a hollow-out parts, it is characterized in that: it also includes the arbitrary main shaft locking system as described in claim 1-8, this main shaft locking system is arranged on the miner diameter end of main shaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287689.XA CN105972201B (en) | 2016-05-04 | 2016-05-04 | A kind of main shaft locking system of improvement and utilization |
| CN201810163718.0A CN108386539A (en) | 2016-05-04 | 2016-05-04 | A kind of novel main shaft locking system and lifting handcart driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287689.XA CN105972201B (en) | 2016-05-04 | 2016-05-04 | A kind of main shaft locking system of improvement and utilization |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810163718.0A Division CN108386539A (en) | 2016-05-04 | 2016-05-04 | A kind of novel main shaft locking system and lifting handcart driving device |
Publications (2)
| Publication Number | Publication Date |
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| CN105972201A true CN105972201A (en) | 2016-09-28 |
| CN105972201B CN105972201B (en) | 2018-04-13 |
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| CN201610287689.XA Active CN105972201B (en) | 2016-05-04 | 2016-05-04 | A kind of main shaft locking system of improvement and utilization |
| CN201810163718.0A Withdrawn CN108386539A (en) | 2016-05-04 | 2016-05-04 | A kind of novel main shaft locking system and lifting handcart driving device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810163718.0A Withdrawn CN108386539A (en) | 2016-05-04 | 2016-05-04 | A kind of novel main shaft locking system and lifting handcart driving device |
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| CN106865432A (en) * | 2017-04-28 | 2017-06-20 | 河南科技大学 | It is a kind of with laborsaving and anti-drop function hand goods lift |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629533A (en) * | 2016-12-20 | 2017-05-10 | 厦门靖东机械有限公司 | Safe anti-falling device of lifting handcart |
| CN106865432A (en) * | 2017-04-28 | 2017-06-20 | 河南科技大学 | It is a kind of with laborsaving and anti-drop function hand goods lift |
| CN107244615A (en) * | 2017-06-07 | 2017-10-13 | 苏州尚梵斯科技有限公司 | A kind of novel gantry crane gear and method |
| CN107244618A (en) * | 2017-06-07 | 2017-10-13 | 苏州尚梵斯科技有限公司 | A kind of rotary-type cantilever lifting appliance and method |
| CN107244615B (en) * | 2017-06-07 | 2018-08-03 | 上海上安机械施工有限公司 | A kind of gate-type lifting equipment and method |
| US20210309497A1 (en) * | 2018-10-09 | 2021-10-07 | Feradyne Outdoors, Llc | Winch |
| US11884524B2 (en) * | 2018-10-09 | 2024-01-30 | Feradyne Outdoors, Llc | Winch |
| CN117086654A (en) * | 2023-10-19 | 2023-11-21 | 靖江市和泰电机部件制造有限公司 | Numerical control rotary table for machining motor casing |
| CN117086654B (en) * | 2023-10-19 | 2023-12-26 | 靖江市和泰电机部件制造有限公司 | Numerical control rotary table for machining motor casing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386539A (en) | 2018-08-10 |
| CN105972201B (en) | 2018-04-13 |
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