CN104326384B - Over-pitching-up-proof multi-point limiting device with adjustable over-fall angle and crawler crane - Google Patents
Over-pitching-up-proof multi-point limiting device with adjustable over-fall angle and crawler crane Download PDFInfo
- Publication number
- CN104326384B CN104326384B CN201410564277.7A CN201410564277A CN104326384B CN 104326384 B CN104326384 B CN 104326384B CN 201410564277 A CN201410564277 A CN 201410564277A CN 104326384 B CN104326384 B CN 104326384B
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- China
- Prior art keywords
- pointer
- base
- mast
- bent plate
- chute
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/60—Derricks
Abstract
The invention discloses an over-pitching-up-proof multi-point limiting device with an adjustable over-fall angle. The over-pitching-up-proof multi-point limiting device comprises a base (1), a pointer (2), a first bent plate (31) and a second bent plate (32), wherein the upper end of the pointer (2) is in rotational connection with the base (1) to form a swinging center and the lower end of the pointer (2) can wind around a free swinging end of the swinging center and points to an angle scale range on the base (1); the first bent plate (31) is provided with a first slide groove (61); the pointer (2) penetrates through the first slide groove (61); the second bent plate (32) is provided with a second slide groove (62); the second slide groove (62) is provided with approach switches which are located on the two sides respectively and have adjustable positions; and the swinging track of the lower end of the pointer (2) is located in a detection range of the approach switches. According to the device, a swinging angle range of a mast is limited so that safety guarantees can be effectively and reliably provided for a mast hanging function; and a mast angle sensor can be replaced so that the design cost is effectively reduced. The invention further discloses a crawler crane provided with the multi-point limiting device.
Description
Technical field
The present invention relates to the anti-mistake of technical field of engineering machinery, particularly crawler crane faced upward the multiple spot for putting adjustable angle
Stopping means.The invention further relates to be provided with the crawler crane of the stopping means.
Background technology
The transition of crawler crane, is by disassembling rear sub-unit transport, after arriving at, needing to re-assembly rear
Working condition can be entered.
Reduction is disassembled and time for assembling and improves degree of convenience during this, can effectively make crawler crane as early as possible
Into working condition, the practical efficiency of crawler crane is effectively improved, make the benefit of user, it is using shoe that mast hangs
Constructional device with crane itself and hydraulic system, realize the simple and easy hoisting mode of auxiliary disassembling and assembling, can effectively reduce
The expense of the extra rental whipline of user.
The limit function that at present mast hangs, main by the way of the setting angle sensor on mast, controller collection
The angle signal of angular transducer, judges that whether mast is hung in safty hoisting state by controller.
Because mast hangs the installation of track beam when tearing car and entrucking open for being only used for crawler crane, utilization rate is not high, and
Angular transducer is expensive, and the limit function for being only used for being hung in mast obviously cannot play the maximum of angular transducer and utilize
Rate, from price and functionally for be a kind of waste.
Therefore, how on the premise of limit function is ensured, stopping means cost is reduced as far as possible, be art technology
Personnel's technical issues that need to address.
The content of the invention
The first object of the present invention is to provide a kind of anti-mistake and faced upward the multiple spot stopping means for putting adjustable angle.The device passes through
The pivot angle scope of mast is limited, effectively and reliably function can be hung for mast safety guarantee is provided, and may replace mast angle
Sensor, effectively reduces design cost.
The second object of the present invention is to provide a kind of crawler crane for being provided with the stopping means.
For achieving the above object, the present invention provides a kind of anti-mistake and faced upward the multiple spot stopping means for putting adjustable angle, including：
Base；
Pointer, its upper end is connected to form oscillation center with the base rotation, and lower end can freely swing around oscillation center
Hold and be directed to the angle index region on the base；
First bent plate, is fixed on the base, which is provided with the first chute, and the pointer passes through first chute；
Second bent plate, is fixed on the base, which is provided with the second chute, and second chute is provided with and be located at respectively both sides
And the adjustable proximity switch in position, the swinging track of the pointer lower end is within the detection range of the proximity switch.
Preferably, first chute and the second chute are slotted hole.
Preferably, first bent plate, the center of circle of the second bent plate overlap with the oscillation center of the pointer.
Preferably, the arc length and radius of second bent plate is more than first bent plate.
Preferably, the pointer upper end is connected by stud and bolt with base rotation, and the stud welding is in the bottom
On seat, the bolt screws in the stud through the through hole of the pointer upper end.
Preferably, the position of the close lower end of the pointer is rounded or spherical.
Preferably, two proximity switches are respectively equipped with the baffle plate for limiting hand motion scope under working condition.
Preferably, the baffle plate is in bending-like, including the lower hem being sleeved on proximity switch, is located adjacent to switch detection
Side plate on the outside of end, and corresponding to the upper hem of the pointer, during the pointer triggering proximity switch baffle plate is stopped at
Upper hem.
To realize above-mentioned second purpose, the present invention also provides a kind of crawler crane, including turntable and with the turntable
Rotate the mast of connection, the anti-mistake that the side of the mast is provided with described in any of the above-described faced upward put adjustable angle multiple spot it is spacing
Device.
Preferably, the side of the mast is provided with welded plate, and the multiple spot stopping means is installed on the welded plate.
The present invention, on the one hand by the pivot angle scope of restriction mast, can have on the premise of ensureing that mast hangs safty hoisting
Effect and reliably hang function for mast safety guarantee be provided, it is to avoid mast because cross put the caused steel wire rope of lifting, assembly pulley or
Luffing elevator is damaged problem, and avoids main transformer width from crossing facing upward the mast that causes mast hypsokinesis to be brought and jacking cylinder is damaged and asked
Topic, so as to effectively lift security, the reliability of main amplitude mast operation, on the other hand may replace main amplitude mast angle sensor
Device, because the cost of proximity switch is far below angular transducer, therefore can effectively reduce design cost.
The present invention provide crawler crane be provided with above-mentioned multiple spot stopping means, due to the multiple spot stopping means have it is upper
Technique effect is stated, being provided with the crawler crane of the multiple spot stopping means should also possess corresponding technique effect.
Description of the drawings
Fig. 1 is provided a kind of structural representation of specific embodiment of multiple spot stopping means by invention；
Fig. 2 is the schematic diagram that multiple spot stopping means shown in Fig. 1 is installed on crane mast；
Fig. 3 is the close-up schematic view at A positions in Fig. 2；
Fig. 4 is the control flow chart of multiple spot stopping means shown in Fig. 1.
In figure：
1. the chute of 2. pointer of base, 31. first 32. second bent plate of bent plate, 4. stud, 5. bolt 61. first
The second baffle 811. of 62. second chute, 71. first 72. second proximity switch of proximity switch, 81. first baffle 82.
The steel wire rope 13. of 11. luffing elevator of lower hem 812. side plate, 813. upper hem, 9. welded plate, 10. mast 12.
The assembly pulley of turntable 14.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 is refer to, Fig. 1 is provided a kind of structural representation of specific embodiment of multiple spot stopping means by invention.
In a kind of specific embodiment, anti-mistake provided by the present invention faced upward the multiple spot stopping means for putting adjustable angle,
Mainly it is made up of parts such as base 1, pointer 2, the first bent plate 31, the second bent plates 32.
Wherein, substantially in the square of 45 jiaos of placements of rotation, peripheral position is provided with three installing holes, the upper end of pointer 2 to base 1
Rotate in upper corner point with base 1 and be connected to form oscillation center, lower end can freely swing around oscillation center and hold and point to base
The angle index region at middle part, angle index region indicates mast and the angular dimension before turntable, while as adjusting proximity
One kind reference during switch, angular range from 0 ° to 90 °, according to the difference of installation site, its scale value can from right to left by
It is cumulative to add, it is also possible to gradually to increase from left to right.
Specifically, the position of the close lower end of pointer 2 rounded or spherical (can also be other shapes), so that its center of gravity is most
Possible preferably swing performance so as to have under gravity on the lower, the upper end of pointer 2 can be by stud 4 and bolt 5 and bottom
Seat 1 rotates connection, during installation, stud 4 is vertically welded on base 1 first, then using bolt 5 through the upper end of pointer 2
Through hole screws in stud 4.
First bent plate 31 is fixed on base 1, between the oscillation center of pointer 2 and angle index region, which is provided with
The first slightly wide chute 61 than the thickness of pointer 2, the shaft of pointer 2 passes through first chute 61, can limit in the first chute 61
Freely swing in fixed scope, the one side of the first bent plate 31 is used for the range of movement of limit pointer 2, on the other hand has to pointer 2
A kind of protective effect.
Second bent plate 32 is also secured on base 1, and positioned at the lower section in angle index region, arc length and radius first is all higher than
Bent plate 31, which is provided with the second chute 62, and the second chute 62 is provided with and be located at respectively adjustable first proximity switch in both sides and position
71 and second proximity switch 72, the swinging track of the lower end of pointer 2 is located at the inspection of the first proximity switch 71 and the second proximity switch 72
Within the scope of survey, proximity switch just can realize connection circuit without the need for carrying out mechanically direct contact with moving component pointer, so as to
Send detection signal.
Here, the first chute 61 and the second chute 62 are the slotted hole opened up along the length direction of bent plate circular arc.Certainly,
Except slotted hole, chute can also be other forms, for example, can process " U " on the first bent plate 31 and the second bent plate 32 in advance
Shape groove, when it is fixed on base 1, closes " u "-shaped channel opening and forms chute by base 1；Or 62 points of the second chute is two
Section, is respectively used to install the first proximity switch 71 and the second proximity switch 72, etc..
Above-mentioned first bent plate 31, the center of circle of the second bent plate 32 overlap with the oscillation center of pointer 2, i.e., three has same circle
The heart.
It is respectively equipped with first proximity switch 71 and the second proximity switch 72 and limits the range of movement of pointer 2 under working condition
First baffle 81 and second baffle 82, first baffle 81 and second baffle 82 specular in structure, below only with first gear
Its structure is illustrated as a example by plate 81.
First baffle 81 is in bending-like, positioned at the inner side of the second bent plate 32, lower hem 811 is divided in structure, positioned at connecing
Side plate 812 and the upper hem 813 corresponding to pointer on the outside of nearly switch test side, whole baffle plate is by lower hem 811
Installing hole is sleeved on the upper end of the first proximity switch 71, can move and adjust with the first proximity switch 71, upper hem 813
Length be less than lower hem 811, its length should meet when pointer 2 trigger the first proximity switch 71 when, under its barrier effect,
The requirement that pointer 2 can stop swinging.The purpose of so design is to prevent pointer 2 from continuing after the first proximity switch 71 is triggered
Swing out, the first proximity switch 71 is triggered again when returning, so as to there is false alarm.
Second chute 62 is used to install and adjusting proximity switch, and the first proximity switch 71 and the second proximity switch 72 lead to respectively
Securing member is crossed in the second chute 62, its test side is exposed upwards, corresponding to the lower end of pointer 2, the other end and wire are downward
Draw, when the adjusting proximity position of the switch is needed, first loosening fasteners will be close to referring next to the scale value in angle index region
Switch slides into suitable position, then tightening fastener parts again in the second chute 62.
Fig. 2, Fig. 3 are refer to, Fig. 2 is the schematic diagram that multiple spot stopping means shown in Fig. 1 is installed on crane mast；Fig. 3 is
The close-up schematic view at A positions in Fig. 2.
As illustrated, multiple spot stopping means is arranged on the side of crane mast, its stacked block-shaped phase in lower section of base 1
Imitative welded plate 9, after both interfix, then is welded on mast 10 by welded plate 9 together with multiple spot stopping means thereon
On.
During work, the luffing elevator 11 of crane is rotated in the presence of hydraulic coupling, and by steel wire rope 12 mast 10 is driven
Rotate around root pin joint, now mast 10 can be continually changing with the folder degree of turntable 13, when permission lifting angle is reached, control
The flexible realization lifting of auxiliary cylinder processed.
In hoisting process, due to Action of Gravity Field, the pivot angle of the pointer 2 of multiple spot stopping means is with the luffing of mast 10
Change.When 10, mast is raised to certain angle, because pointer 2 turns to the surface of the first proximity switch 71, first
Proximity switch 71 will produce response electric signal；When mast 10 drops to certain angle, it is close to because pointer 2 turns to second
The surface of switch 72, the second proximity switch 72 can produce response electric signal, and the position of proximity switch is adjustable, is capable of achieving
Mast angle changing it is spacing, due to the restriction of first baffle 81 and second baffle 82, this detection means only exist first be close to
The response of switch 71, the second proximity switch 72 are responded, are not responding to three kinds of states.
Fig. 4 is refer to, Fig. 4 is the control flow chart of multiple spot stopping means shown in Fig. 1.
As illustrated, when the first proximity switch 71 or the second proximity switch 72 are responded, auxiliary cylinder is forbidden shrinking, so as to
Limit the lifting that mast hangs；When the first proximity switch 71 and the second proximity switch 72 are not responding to, auxiliary cylinder can shrink
And elongation, so as to realize the normal lifting work that mast hangs.
The present invention is avoided that mast is damaged and asks because putting the caused luffing elevator 11, steel wire rope 12 of lifting or assembly pulley 14 excessively
Inscribe, and avoid main transformer width from crossing and face upward the mast 10 and jacking cylinder damage problem for causing the hypsokinesis of mast 10 to be brought, therefore can have
Effect lifts security, the reliability of the operation of main amplitude mast 10, can effectively replace main amplitude mast angular transducer, separate unit drop
Low cost.
Certainly, above-described embodiment is only the preferred version of the present invention, is specifically not limited thereto, on this basis can basis
It is actually needed and makes with targetedly adjusting, so as to obtain different embodiments.For example, base is designed to into sector, or
By the baffle design of proximity switch into other shapes, or the position of proximity switch is adjusted by other means person
Deng.Because mode in the cards is more, just no longer illustrate one by one here.
Except above-mentioned multiple spot stopping means, the present invention also provides a kind of crawler crane, including turntable and with described turn
Platform rotates the mast of connection, and the side of the mast is provided with anti-mistake mentioned above and faced upward the spacing dress of multiple spot for putting adjustable angle
Put, remaining structure refer to prior art, repeat no more.
Multiple spot stopping means provided by the present invention and crawler crane are described in detail above.It is used herein
Specific case is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands
The core concept of the present invention.It should be pointed out that for those skilled in the art, without departing from the principle of the invention
On the premise of, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the claims in the present invention
Protection domain in.
Claims (6)
1. a kind of anti-mistake faced upward the multiple spot stopping means for putting adjustable angle, it is characterised in that include：
Base (1)；
Pointer (2), its upper end rotates with the base (1) and is connected to form oscillation center, and lower end can freely put around oscillation center
Simultaneously point to the angle index region on the base (1) in moved end；
First bent plate (31), is fixed on the base (1), which is provided with the first chute (61), and the pointer (2) is through described
One chute (61)；
Second bent plate (32), is fixed on the base (1), which is provided with the second chute (62), and second chute (62) is provided with
The adjustable proximity switch in both sides and position is located at respectively, and the swinging track of pointer (2) lower end is located at the proximity switch
Within detection range；
First chute (61) and the second chute (62) are slotted hole；
First bent plate (31), the center of circle of the second bent plate (32) overlap with the oscillation center of the pointer (2)；
Two proximity switches are respectively equipped with the baffle plate for limiting hand motion scope under working condition, and the baffle plate is in bending
Shape, including the lower hem (811) being sleeved on proximity switch, is located adjacent to switch the side plate (812) on the outside of test side, and right
The upper hem (813) of pointer described in Ying Yu (2), is stopped at the upper hem of the baffle plate during pointer (2) the triggering proximity switch
(813)。
2. anti-mistake according to claim 1 faced upward the multiple spot stopping means for putting adjustable angle, it is characterised in that described second
The arc length and radius of bent plate (32) is more than first bent plate (31).
3. anti-mistake according to claim 1 faced upward the multiple spot stopping means for putting adjustable angle, it is characterised in that the pointer
(2) upper end is rotated with base (1) by stud (4) and bolt (5) and is connected, and the stud (4) is welded on the base (1),
The bolt (5) screws in the stud (4) through the through hole of the pointer (2) upper end.
4. the anti-mistake according to any one of claims 1 to 3 faced upward the multiple spot stopping means for putting adjustable angle, and its feature exists
In the position of the close lower end of the pointer (2) is rounded or spherical.
5. a kind of crawler crane, including turntable (13) and the mast (10) being connected with turntable rotation, it is characterised in that
The anti-mistake that the side of the mast (10) is provided with described in any one of the claims 1 to 4 faced upward the multiple spot limit for putting adjustable angle
Position device.
6. crawler crane according to claim 5, it is characterised in that the side of the mast (10) is provided with welded plate
(9), the multiple spot stopping means is installed on the welded plate (9) by its base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564277.7A CN104326384B (en) | 2014-10-21 | 2014-10-21 | Over-pitching-up-proof multi-point limiting device with adjustable over-fall angle and crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564277.7A CN104326384B (en) | 2014-10-21 | 2014-10-21 | Over-pitching-up-proof multi-point limiting device with adjustable over-fall angle and crawler crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104326384A CN104326384A (en) | 2015-02-04 |
| CN104326384B true CN104326384B (en) | 2017-04-26 |
Family
ID=52401216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410564277.7A Active CN104326384B (en) | 2014-10-21 | 2014-10-21 | Over-pitching-up-proof multi-point limiting device with adjustable over-fall angle and crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104326384B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254893A (en) * | 2017-06-07 | 2017-10-17 | 龙工(上海)机械制造有限公司 | Two grades of limiting steering hydraulic systems of wheel loader |
| CN108358078A (en) * | 2018-01-19 | 2018-08-03 | 中联重科股份有限公司 | Boom system, luffing range of cantilever support control system and its control method |
| CN111495909B (en) * | 2020-03-20 | 2021-09-14 | 中国人民解放军陆军防化学院 | Metal cylinder decontamination device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3800425A (en) * | 1972-03-20 | 1974-04-02 | Jones Construction Co J | Boom orientation and load capacity indicator |
| CN203582339U (en) * | 2013-09-06 | 2014-05-07 | 中联重科股份有限公司 | Amplitude variation limit device and luffing jib tower crane |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859651A (en) * | 1974-01-14 | 1975-01-07 | Jr Thomas W Thomas | Boom angle indicator |
| CN201598126U (en) * | 2009-10-27 | 2010-10-06 | 徐州重型机械有限公司 | Super-hoisting variable amplitude limiting device and crane provided therewith |
| CN202245856U (en) * | 2011-08-18 | 2012-05-30 | 南通润邦重机有限公司 | Variable-amplitude limiting device of mast type offshore wind turbine installation crane |
| CN203667867U (en) * | 2014-01-23 | 2014-06-25 | 南通润邦重机有限公司 | Hoisting mechanical arm rest safety limit device |
| CN204281132U (en) * | 2014-10-21 | 2015-04-22 | 徐工集团工程机械股份有限公司 | A kind of anti-mistake faced upward the multiple spot inhibiting device and crawler crane of putting adjustable angle |
-
2014
- 2014-10-21 CN CN201410564277.7A patent/CN104326384B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3800425A (en) * | 1972-03-20 | 1974-04-02 | Jones Construction Co J | Boom orientation and load capacity indicator |
| CN203582339U (en) * | 2013-09-06 | 2014-05-07 | 中联重科股份有限公司 | Amplitude variation limit device and luffing jib tower crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104326384A (en) | 2015-02-04 |
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