CN103434925B - Automatic unhooking device and lifting appliance - Google Patents

Automatic unhooking device and lifting appliance Download PDF

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Publication number
CN103434925B
CN103434925B CN201310400406.4A CN201310400406A CN103434925B CN 103434925 B CN103434925 B CN 103434925B CN 201310400406 A CN201310400406 A CN 201310400406A CN 103434925 B CN103434925 B CN 103434925B
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China
Prior art keywords
tong arm
locking lever
decoupling device
projection
fitting surface
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CN201310400406.4A
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Chinese (zh)
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CN103434925A (en
Inventor
张国良
王殿广
季惠彬
胡德新
奚进泉
孙宝
吴国义
宋矿银
吕景权
郑红刚
徐军
杨启龙
张晓东
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Beijing orient Nova survey and Design Co., Ltd.
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BEIJING NEW ORIENTAL STAR PETROCHEMICAL ENGINEERING Co Ltd
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Priority to CN201310400406.4A priority Critical patent/CN103434925B/en
Publication of CN103434925A publication Critical patent/CN103434925A/en
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Abstract

The invention discloses an automatic unhooking device and a lifting appliance. The automatic unhooking device comprises a worm gear, a worm and a motor used for driving the worm to rotate, wherein the worm gear is meshed with the worm; the automatic unhooking device also comprises a cam, a locking lever, a lifting hanging clamp, a first elastic part and a second elastic part, wherein the cam is fixedly connected with the worm gear; one end of the locking lever is matched with the cam, and the other end of the locking lever is provided with a hook-shaped bulge; the locking lever is provided with a rotating hole; the lifting hanging clamp comprises a first clamp arm and a second clamp arm which are articulated with each other by a fixed shaft; the upper end of the first clamp arm is rotatably matched with a rotary pin shaft; the lower end of the first clamp arm can be in contact with the lower end of the second clamp arm; the contact surface between the first clamp arm and the second clamp arm is positioned at the lowest point; the first elastic part is arranged above the end of the hook-shaped bulge of the locking lever; the second elastic part is arranged under the end of a matching bulge of the second clamp arm. The lifting appliance comprises the automatic unhooking device. The automatic unhooking device and the lifting appliance eliminate the potential safety hazard and improve the working efficiency.

Description

Automatic decoupling device and weight-lifting equipment
Technical field
The present invention relates to lifting industry, especially a kind of automatic decoupling device.
Background technology
Detacher is the equipment that lifting industry is often used, and existing detacher is human intervention hook, but this detacher has larger potential safety hazard in use, and operationally efficiency is very low.
Therefore, need to invent a kind of novel automatic decoupling device.
Utility model content
Main purpose of the present invention is, provides a kind of novel automatic decoupling device, thus can realize the automatically-unhooked of weight-lifting equipment.
The technical matters of object of the present invention and solution realizes by the following technical solutions.
By a kind of automatic decoupling device, it comprises worm gear, worm screw and motor, and worm screw described in described driven by motor is rotated, and described worm gear and described worm mesh, also comprise: cam, and it is fixedly connected with described worm gear, and described worm gear drives described cam to rotate; Locking lever, match with described cam in its one end, the other end is provided with hooked projection, described locking lever is provided with rotation hole, is provided with rotating pin in described rotation hole, and described locking lever rotates around described rotating pin; Lifting tongs, it comprises the first tong arm through the mutual hinge of anchor shaft and the second tong arm, the upper end of described first tong arm and described rotating pin normal-running fit, the upper end of described second tong arm is provided with the fitting projection matched with described hooked projection, the lower end of described first tong arm can with the lower end in contact of described second tong arm, the contact surface of described first tong arm and the second tong arm is nadir; First elastomeric element, it is arranged on the top of the hooked projection end of described locking lever, provides downward application force to described locking lever; Second elastomeric element, it is arranged on the below of the fitting projection end of described second tong arm, provides upwards application force to described second tong arm.
Preferably, described first tong arm comprise fitting surface and first time fitting surface on first bottom, on described first, fitting surface and described first time fitting surface draw in respectively to the center line of described contact surface, described second tong arm comprise fitting surface and second time fitting surface on second bottom, on described second, fitting surface and described second time fitting surface draw in respectively to the center line of described contact surface.
Preferably, described automatic decoupling device also comprises upper limit device and lower retainer, and the sidewall of described locking lever is provided with projection and lower convexity, and when described projection contacts with described upper limit device, described locking lever is in topmost; When described lower convexity contacts with described lower retainer, described locking lever is in bottom.
Preferably, described automatic decoupling device also comprises external switch, for controlling the rotation direction of described worm screw.
Preferably, the lower end of described first tong arm is in the frustum kept flat, and the lower end of described second tong arm is in the frustum kept flat, and the contact part of described first tong arm and the second tong arm is nadir.
Preferably, the overlapping setting of contact part of described first tong arm and the second tong arm.
Preferably, described automatic decoupling device also comprises the shell of lower openings, and described worm gear, worm screw, locking lever and elastomeric element are placed in described shell, and described lifting tongs is placed in the peristome of described shell.
Preferably, the upper end of described shell is provided with suspension ring.
Object of the present invention also can realize by following technical scheme.By a kind of weight-lifting equipment, comprise load-engaging device, described load-engaging device is provided with above-mentioned automatic decoupling device.
By technique scheme, a kind of automatic decoupling device that the present invention proposes at least has following advantages:
1) structure of the present invention is simple, easily operates;
2) by controlling the rotation of worm and gear, thus control the state of the arm of lifting tongs, then by applying application force up or down to described arm, realize opening or closing of described arm, thus make to treat transport object can automatic hitch and unhook;
3) the present invention can automatic hitch and unhook, thus eliminates potential safety hazard, improves work efficiency.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification sheets, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of automatic decoupling device embodiment one of the present invention;
Fig. 2 is the structural representation of automatic decoupling device embodiment two of the present invention.
Detailed description of the invention
For further setting forth the present invention for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to a kind of detailed description of the invention of automatic decoupling device proposed according to the present invention, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Automatic decoupling device embodiment one
A kind of automatic decoupling device as shown in Figure 1, comprising: comprise worm gear 1, worm screw 2 and motor 3, and described motor 3 drives described worm screw 2 to rotate, described worm gear 1 engages with described worm screw 2, also comprise: cam 4, it is fixedly connected with described worm gear 1, and described worm gear 1 drives described cam 4 to rotate; Locking lever 5, match with described cam 4 in its one end, the other end is provided with hooked projection 51, described locking lever 5 is provided with rotation hole, is provided with rotating pin 52 in described rotation hole, and described locking lever 5 rotates around described rotating pin 52; Lifting tongs, it comprises the first tong arm 6 and the second tong arm 7 through the mutual hinge of anchor shaft 10, the upper end of described first tong arm 6 and described rotating pin 52 normal-running fit, the upper end of described second tong arm 7 is provided with the fitting projection matched with described hooked projection 51, the lower end of described first tong arm 6 can with the lower end in contact of described second tong arm 7, the contact part of described first tong arm 6 and the second tong arm 7 is nadir; First elastomeric element 8, it is arranged on the top of hooked projection 51 end of described locking lever 5, provides downward application force to described locking lever 5; Second elastomeric element 9, it is arranged on the below of the fitting projection end of described second tong arm 7, provides upwards application force to described second tong arm 7.
Described locking lever 5 can rotate around described rotating pin 52.Hooked projection 51 end of described locking lever 5, top is subject to the application force of the first elastomeric element 8, and bottom is subject to the application force of the second elastomeric element 9, thus it can be made to maintain a relatively-stationary position.Meanwhile, the other end of described locking lever 5 is also subject to the application force of described cam 4.The state of kinematic motion of described locking lever 5 is subject to the control of described cam 4, and that is, described locking lever 5 needs to keep contacting with described cam 4 always.Its method realized has two kinds: the distance one) between described hooked projection 51 and described rotation hole is greater than the half of described locking lever 5 length; Two) be provided with weight at described hooked projection 51 end, thus the weight of described locking lever 5 hooked projection 51 end can be made comparatively large, Action of Gravity Field makes described locking lever 5 contact with described cam 4.
Described cam 4 can rotate clockwise, and also can rotate counterclockwise.In the process of rotating, described locking lever 5 can be pressed down by described protrusion, rotate clockwise for described cam 4 below and be further described: one) protrusion of described cam 4 is rotated to (between 0 ° ~ 180 °) during B position by A position, and the hooked projection 51 of described locking lever 5 is all in lowest order; Two) when described cam 4 is rotated further, described protrusion depressing with cam 4 abutting end constantly by described locking lever 5, described hooked projection 51 end constantly rises, until described protrusion moves to C position (namely 270 ° time), described locking lever 5 be in lowest order with cam 4 abutting end, described hooked projection 51 is in most significant bit; Three) described cam 4 is when C position, can select to continue to rotate clockwise, or selects to rotate counterclockwise, and now, described cam 4 abutting end rises, and described hooked projection 51 end declines.
Described hooked projection 51 is for being arranged on the projection vertically downward on described locking lever 5.When described hooked projection 51 is that described fitting projection matches, described second tong arm 7 can be made not rotate.Because described second tong arm 7 is when rotating, be first subject to the obstruction of described hooked projection 51, described hooked projection 51 can ensure that described fitting projection can not to left movement, thus makes described second tong arm 7 be fixed on most high state.
Described hooked projection 51 is moved, and described fitting projection can depart from from described hooked projection 51.Thus, make the top of described second tong arm 7 only be subject to the application force of described second elastomeric element 9.Now, if apply downwards the lower end contact part of described first tong arm 6 and the second tong arm 7 or upwards application force, again because the contact part of described first tong arm 6 and the second tong arm 7 is nadir, application force up or down then, axial thrust can be produced to described first tong arm 6 and the second tong arm 7, thus the lower end of described first tong arm 6 and described second tong arm 7 is opened.
The working process of this automatic decoupling device is: one) initial condition: described first tong arm 6 coordinates ringwise with the lower end of described second tong arm 7, the hooked projection 51 of described locking lever 5 is in lowest order, the hooked projection 51 of described locking lever 5 matches with described second tong arm 7, the protrusion of described cam 4 is placed in the A position parallel with described locking lever 5, and described first elastomeric element 8 and described second elastomeric element 9 are all in stretched condition; Two) lifting tongs jaw opens process: described motor 3 drives worm screw 2 to rotate, worm gear 1 engages with described worm screw 2, described cam 4 rotates thereupon, protrusion the depressing with cam 4 abutting end constantly by described locking lever 5 of described cam 4, described hooked projection 51 end constantly rises, fitting projection and the described hooked projection 51 of described second tong arm 7 depart from, described first tong arm 6 and the second tong arm 7 be subject to bottom up or down application force time, the jaw that the lower end of described first tong arm 6 and the second tong arm 7 is formed opens; Three) reseting procedure: described lifting tongs is assembling until transport object or after transport object breaks off relations, described cam 4 cw or rotate counterclockwise to A position, described hooked projection 51 matches with described fitting projection, returns to initial condition.
Described automatic decoupling device is by controlling the rotation of worm gear 1 worm screw 2, thus control the state of the arm of lifting tongs, again by applying application force up or down to described arm, realize opening or closing of described arm, thus make to wait to transport object can automatic hitch and unhook; Described automatic decoupling device can automatic hitch and unhook, thus eliminates potential safety hazard, improves work efficiency.
Automatic decoupling device embodiment two
Described first tong arm 6 comprise fitting surface 61 and first time fitting surface 62 on first bottom, on described first, fitting surface 61 and described first time fitting surface 62 draw in respectively to the center line of described contact surface, described second tong arm 7 comprise fitting surface 71 and second time fitting surface 72 on second bottom, on described second, fitting surface 71 and described second time fitting surface 72 draw in respectively to the center line of described contact surface.
On described first, on fitting surface 61 and second, fitting surface 71 refers to, in time transporting object and depart from from described lifting tongs and the contact surface of described lifting suspension ring, wait to transport object on described first on fitting surface 61 and second fitting surface 71 form a V-type, thus described in making, wait that transporting object easily slides to nadir (i.e. the contact surface place of described first tong arm 6 and the second tong arm 7), treat that described locking lever 5 rises, described second tong arm 7 is in free state, described waiting transports object due to Action of Gravity Field, described first tong arm 6 and the second tong arm 7 are opened, described wait transport object can depart from from described opening part.Same, described first time fitting surface 62 and described second time fitting surface 72 form an inverted V-type, described when the mounting ring of transport object is in the groove being placed to described first time fitting surface 62 and described second time fitting surface 72 formation, the self gravitation of this utility model makes described lifting tongs apply downward application force, describedly wait that transporting the mounting ring of object has upward reaction force to described first tong arm 6 and the second tong arm 7, again because lower fitting surface exists certain slope, described first tong arm 6 and the second tong arm 7 can be made to open, described waiting is transported in object mounting ring to described lifting tongs.
Described automatic decoupling device also comprises upper limit device 11 and lower retainer 12, and the sidewall of described locking lever 5 is provided with projection 13 and lower convexity 14, and when described projection 13 contacts with described upper limit device 11, described locking lever 5 is in topmost; When described lower convexity 14 contacts with described lower retainer 12, described locking lever 5 is in bottom.
During concrete enforcement, described upper limit device 11 and lower retainer 12 are the form of limit relay, thus, control for brake is carried out to described motor 3.Described projection 13 is arranged on the upside of described locking lever 5, and described lower convexity 14 is arranged on the downside of described locking lever 5.When initial condition, described motor 3 is in non-"on" position, and described lower convexity 14 contacts with described lower retainer 12, after described motor 3 is energized, described cam 4 is driven and rotates clockwise, meanwhile, described projection 13 upwards limiting device 11 is moved, until when moving to upper limit device 11, the power-off of described motor 3, in Preset Time or after providing a signal to described motor 3, described motor 3 is energized, described cam 4 rotates counterclockwise to initial condition.
Preferably, described automatic decoupling device also comprises external switch 15, for controlling the rotation direction of described worm screw 2.Thus the rotation direction of described cam 4 can be controlled.
Preferably, the lower end of described first tong arm 6 is in the frustum kept flat, and the lower end of described second tong arm 7 is in the frustum kept flat.That is, the unhook and the hook that transport object in rounding state gradually, thus are waited in the lower end of described first tong arm 6 and the second tong arm 7 described in convenience.
Preferably, the overlapping setting of contact part of described first tong arm 6 and the second tong arm 7.Wait the mounting ring diameter transporting object described in the part of described overlapping setting is less than, thus described mounting ring namely can be made to open described first tong arm 6 and the second tong arm 7, described mounting ring difficult drop-off can be guaranteed again.
Preferably, also comprise the shell 16 of lower openings, described worm gear 1, worm screw 2, locking lever 5 first elastomeric element 8 and the second elastomeric element 9 are placed in described shell 16, and described lifting tongs is placed in the peristome of described shell 16.The function of described shell 16 is the structure housing of tool protective effect.
Preferably, the upper end of described shell 16 is provided with suspension ring 17.Thus, be conveniently connected with described engine installation.
Weight-lifting equipment embodiment
A kind of weight-lifting equipment, comprises load-engaging device, described load-engaging device is provided with the automatic decoupling device in above-described embodiment.Thus can realize the automatically-unhooked hook of weight or weight, the weight completing lifting operation or the operation of pile measurement Large strain discharges operation.
The above, it is only preferred embodiment of the present invention, not do any pro forma restriction to the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (9)

1. an automatic decoupling device, it comprises worm gear, worm screw and motor, and worm screw described in described driven by motor is rotated, and described worm gear and described worm mesh, is characterized in that, also comprise:
Cam, it is fixedly connected with described worm gear, and described worm gear drives described cam to rotate;
Locking lever, match with described cam in its one end, the other end is provided with hooked projection, described locking lever is provided with rotation hole, rotating pin is provided with in described rotation hole, described locking lever rotates around described rotating pin, and the distance between described hooked projection and described rotation hole is greater than the half of described locking lever length;
Lifting tongs, it comprises the first tong arm through the mutual hinge of anchor shaft and the second tong arm, the upper end of described first tong arm and described rotating pin normal-running fit, the upper end of described second tong arm is provided with the fitting projection matched with described hooked projection, the lower end of described first tong arm can with the lower end in contact of described second tong arm, the contact surface of described first tong arm and the second tong arm is nadir;
First elastomeric element, it is arranged on the top of the hooked projection end of described locking lever, provides downward application force to described locking lever;
Second elastomeric element, it is arranged on the below of the fitting projection end of described second tong arm, provides upwards application force to described second tong arm.
2. automatic decoupling device according to claim 1, is characterized in that,
Described first tong arm comprise fitting surface and first time fitting surface on first bottom, on described first, fitting surface and described first time fitting surface draw in respectively to the center line of described contact surface, described second tong arm comprise fitting surface and second time fitting surface on second bottom, on described second, fitting surface and described second time fitting surface draw in respectively to the center line of described contact surface.
3. automatic decoupling device according to claim 1, is characterized in that,
Also comprise upper limit device and lower retainer, the sidewall of described locking lever is provided with projection and lower convexity, when described projection contacts with described upper limit device, described locking lever is in topmost; When described lower convexity contacts with described lower retainer, described locking lever is in bottom.
4. automatic decoupling device according to claim 1, is characterized in that,
Also comprise external switch, for controlling the rotation direction of described worm screw.
5. automatic decoupling device according to claim 1, is characterized in that,
The lower end of described first tong arm is in the frustum kept flat, and the lower end of described second tong arm is in the frustum kept flat, and the contact part of described first tong arm and the second tong arm is nadir.
6. automatic decoupling device according to claim 1, is characterized in that,
The overlapping setting of contact part of described first tong arm and the second tong arm.
7. automatic decoupling device according to claim 1, is characterized in that,
Also comprise the shell of lower openings, described worm gear, worm screw, locking lever and elastomeric element are placed in described shell, and described lifting tongs is placed in the peristome of described shell.
8. automatic decoupling device according to claim 7, is characterized in that,
The upper end of described shell is provided with suspension ring.
9. a weight-lifting equipment, comprises load-engaging device, it is characterized in that,
Described load-engaging device is provided with the automatic decoupling device according to any one of claim 1 to 8.
CN201310400406.4A 2013-09-05 2013-09-05 Automatic unhooking device and lifting appliance Active CN103434925B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103723618B (en) * 2014-01-17 2016-06-15 上海同济建设工程质量检测站 A kind of Large strain drops hammer detacher device
CN109186918B (en) * 2018-10-21 2020-10-23 西安航天动力测控技术研究所 Solid rocket engine drop test frame of mechanical type trigger release

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SU1472407A1 (en) * 1987-10-08 1989-04-15 Ворошиловградский Проектно-Технологический Институт Машиностроения Им.Хху1 Съезда Кпсс Load engaging device
CN203079532U (en) * 2013-01-22 2013-07-24 天蓬集团有限公司 Integrated manual and electric dropping lifting hook
CN203474246U (en) * 2013-09-05 2014-03-12 北京东方新星石化工程股份有限公司 Automatic decoupling equipment and hoisting equipment

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CN203079532U (en) * 2013-01-22 2013-07-24 天蓬集团有限公司 Integrated manual and electric dropping lifting hook
CN203474246U (en) * 2013-09-05 2014-03-12 北京东方新星石化工程股份有限公司 Automatic decoupling equipment and hoisting equipment

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Effective date of registration: 20181101

Address after: 102628 B516, 4 floor, 6 building, 15 Jinyuan Road, Daxing District, Beijing.

Patentee after: Beijing orient Nova survey and Design Co., Ltd.

Address before: 100070 28, seven District, 188 tower, South Fourth Ring Road, Fengtai District, Beijing.

Patentee before: Beijing New Oriental Star Petrochemical Engineering Co., Ltd.