CN207973430U - Self-locking derrick crane - Google Patents

Abstract

The utility model provides a kind of self-locking derrick crane, is related to building machinery field, including tower body, swing arm, sensing device, locking device and control host, swing arm is rotatably connect with tower body, mobilizable on swing arm to be provided with loading trolley.Sensing device includes first sensor, second sensor and 3rd sensor.First sensor is used to incude the amplitude that raises up of swing arm, and second sensor is used to incude swing arm and is acted relative to the revolution of tower body, and 3rd sensor is set to loading trolley and for incuding sliding action of the loading trolley relative to swing arm.Locking device includes the first locking piece and the second locking piece, and the first locking piece and the second locking piece are electrically connected with control host, and control the startup that host is used to control the first locking piece and the second locking piece.The derrick crane not only has the function of early warning, additionally it is possible to take measure out of service automatically, effectively prevent violation operation, reduce the security risk of derrick crane.

Description

Self-locking derrick crane

Technical field

The utility model relates generally to building machinery field, in particular to a kind of self-locking derrick crane.

Background technology

Derrick crane is called tower crane, also known as derrick crane, is a kind of common building machinery, and major function is to use In the transport both vertically and horizontally of Architectural Equipment and material.

With the continuous development of society, the demand of the building facilities such as skyscraper, road and bridge construction is also continuously increased, and In the construction process of the building facilities such as skyscraper and road and bridge, derrick crane has played huge effect；But by There are many not expected outwardly and inwardly factors in building construction process so that the use of derrick crane exists very much Security risk, for influence derrick crane safety factor, for raising derrick crane security performance, derrick crane The producer, designer and other stakeholder also createed different safety guarantee device and method, such as China is real With new patent CN103935916A disclose a kind of anti-mistake of derrick crane incline method for early warning and the anti-mistake of derrick crane incline it is pre- The technical solution of alarm device, the utility model can detect whether derrick crane tilts in time, and be sent out in time to driver Alarm effectively prevent complete machine to tumble.Chinese utility model patent CN103434956A disclose a kind of derrick crane topple over it is pre- Alarm device, which, which topples over prior-warning device, timely early warning to reduce personnel and property in tower crane accidents Loss.

Two utility model patents disclosed above and other derrick crane safety early warning devices in the prior art Be by the monitoring to derrick crane real-time status with achieve the purpose that operator provide pre-warning signal.But not Be all operators all can carry out operation processing according to normal specification or pre-warning signal, in real work, often deposit In a part of violation operation, and exactly such violation operation can cause great security risk, or even lead to safety accident.

Accordingly, it is desirable to provide a kind of new technical solution solves above-mentioned technical problem.

Utility model content

The purpose of this utility model is to provide a kind of self-locking derrick cranes, and above-mentioned problem is made effectively to be changed It is kind.

The utility model is realized in this way：

Based on above-mentioned purpose, the embodiments of the present invention provide a kind of self-locking derrick crane, including tower body and Swing arm, swing arm are rotatably connect with tower body, mobilizable on swing arm to be provided with loading trolley, which further includes sense Answer device, locking device and control host；

Sensing device includes first sensor, second sensor and 3rd sensor, first sensor, second sensor and 3rd sensor is electrically connected with control host, and first sensor and second sensor are both secured to tower body and corresponding with swing arm, First sensor is used to incude the amplitude that raises up of swing arm, and second sensor is used to incude swing arm and is acted relative to the revolution of tower body, 3rd sensor is set to loading trolley and for incuding sliding action of the loading trolley relative to swing arm；

Locking device includes the first locking piece and the second locking piece, and the first locking piece is fixed on tower body and corresponding with swing arm, Second locking piece is fixed on loading trolley, and the first locking piece and the second locking piece are electrically connected with control host, and control host Startup for controlling the first locking piece and the second locking piece.

In the alternative embodiment of the utility model, above-mentioned first sensor include the first inductance loop for being mutually matched and First contact, the first inductance loop are sheathed on tower body, and the first contact is fixed on the side corresponding with the first inductance loop of swing arm.

In the alternative embodiment of the utility model, above-mentioned second sensor include the second inductance loop for being mutually matched and Second contact, the first inductance loop and the second inductance loop both sides that be located at swing arm opposite, the second inductance loop are sheathed on tower body, and Two contacts are set to the side far from the first contact of swing arm.

In the alternative embodiment of the utility model, above-mentioned 3rd sensor includes the induction strip and third being mutually matched Contact, induction strip are arranged along the length direction of swing arm, and third contact is fixedly installed on loading trolley.

In the alternative embodiment of the utility model, above-mentioned derrick crane further includes tripper, the tripper It is set in the power supply box of derrick crane, tripper one end is electrically connected with control host, and the other end connects with power supply, works as control When host processed does not send out break signal, tripper keeps unimpeded with power supply；After control host sends out break signal, open circuit Device makes feedback, the connection of cut-out and power supply according to signal.

Compared with prior art, the utility model has the beneficial effects that：

The embodiments of the present invention provide a kind of self-locking derrick crane, are provided with sensing device, locking device With control host, sensing device can sense the overload signal of derrick crane, the signal is then fed back to control host, Instruction is sent out to locking device after the analysis by controlling host, so that locking device is locked the derrick crane, makes it not It can operation.The derrick crane not only has the function of early warning, additionally it is possible to make feedback automatically, taking makes derrick crane stop The measure of operation so that operator to the operating process of derrick crane is carried out in reasonable range, is effectively avoided Violation operation, reduces the security risk of derrick crane, prevents safety accident caused by human factor.

Description of the drawings

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is the structural schematic diagram for the self-locking derrick crane that the utility model embodiment provides；

Fig. 2 is the structural schematic diagram of the first sensor of Fig. 1；

Fig. 3 is the structural schematic diagram of the second sensor of Fig. 1；

Fig. 4 is the structural schematic diagram of the 3rd sensor of Fig. 1；

Fig. 5 is the structural schematic diagram of the first locking piece of Fig. 1；

Fig. 6 is the structural schematic diagram of the second locking piece of Fig. 1；

Fig. 7 is the connecting rod of Fig. 6 and the attachment structure schematic diagram of drive link.

Icon：100- self-locking derrick cranes；10- tower bodies；20- swing arms；21- loading trolleies；30- sensing devices； 31- first sensors；The first inductance loops of 310-；The first contacts of 311-；32- second sensors；The second inductance loops of 320-；321- Two contacts；33- 3rd sensors；330- induction strips；331- third contacts；40- locking devices；The first locking pieces of 41-；410- Slip ring；411- first piston cylinders；412- positioning columns；The clamping portions 413-；The second locking pieces of 42-；420- brake components；4200- stops Vehicle piece；421- driving members；4210- drive links；4211- connecting rods；4212-T type grooves；4213-T type blocks；422- second pistons Cylinder；50- controls host；60- warning devices；70- trippers.

Specific implementation mode

It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all Belong to the range of the utility model protection.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

Embodiment 1

It please refers to shown in Fig. 1, the embodiments of the present invention provide a kind of self-locking derrick crane 100, including tower Body 10 and swing arm 20, swing arm 20 are connect with tower body 10, and swing arm 20 can do 360 degree of rotary motion around tower body 10.Swing arm Loading trolley 21 is provided on 20, loading trolley 21 can slide on swing arm 20, what loading trolley 21 slided on swing arm 20 The transhipment that object is carried out to horizontal direction is realized in the process.In addition, it is necessary to which explanation, swing arm 20 divide for heavy burden section and loading Section, loading trolley 21 are actually to be slided in loading section, and heavy burden section adds weight for balancing the weight in loading section.It should Derrick crane further includes sensing device 30, locking device 40, control host 50, warning device 60 and tripper 70.

Specifically, sensing device 30 is used to incude the event of overload of derrick crane, and the information is sent to control Host 50, and the effect for controlling host 50 is to be made a response by analyzing the signal of sensing device 30, and control locking device 40 Work；In addition control host 50 can also control 60 signal an alert of warning device.Tripper 70 can receive control After the clearance order that host 50 processed is sent out, the power supply of derrick crane is disconnected.

Sensing device 30 includes first sensor 31, second sensor 32 and 3rd sensor 33, first sensor 31, the Two sensors 32 and 3rd sensor 33 are electrically connected with control host 50, and control host 50 can receive first sensor 31, the actuating signal that second sensor 32 and 3rd sensor 33 sense, and make instruction appropriate.

It should be noted that above-mentioned first sensor 31, second sensor 32 and 3rd sensor 33 are distance perspective The equipment answered, that is, by the variation of two inductive heads being mutually matched perception distance between the two, to obtain two phases Action message between the device of interaction.

First sensor 31 and second sensor 32 are both secured to tower body 10 and, first sensor 31 use corresponding with swing arm 20 In the amplitude that raises up of induction swing arm 20, specifically, first sensor 31 is arranged in the upper end or lower end of swing arm 20, when loading section When being loaded with cargo, first sensor 31 can monitor the amplitude that raises up of swing arm 20 in real time, and can be by it Real-time data transmission extremely control host 50.

It please refers to shown in Fig. 2, in the present embodiment, above-mentioned first sensor 31 includes the first inductance loop being mutually matched 310 and first contact 311, the first inductance loop 310 is sheathed on tower body 10, the first contact 311 be fixed on swing arm 20 with the first sense Answer 310 corresponding side of ring.Specifically, the first contact 311 is integrally fixed in heavy burden section, the first contact 311 can be arranged dynamic The side of the bottom of arm 20, with the increase of the weight of cargo in loading section, the first contact 311 and first in heavy burden section incudes The distance between ring 310 gradually increases, until overload.In addition, the first contact 311 can also be arranged on the top of swing arm 20 Side, with the increase of the weight of cargo in loading section, between the first contact 311 and the first inductance loop 310 in heavy burden section Distance is gradually reduced, until overload.Basically, first sensor 31 is by the first inductance loop 310 to the induction of overload And first the variation of distance between contact 311 realize that the mode only changed is different, but can sense tower The overload condition of heavy-duty machine.

First contact 311 can be arranged one can also be arranged it is multiple, can when the first contact 311 is arranged multiple It, at this moment, can be with the first contact 311 to be separately positioned on the swing arm 20 of 10 both sides of tower body, and corresponding with the first inductance loop 310 More accurate actuating signal is obtained by the distance between 311 and first inductance loop 310 of multiple first contacts data, is avoided Because 20 long-time of swing arm occurs using there is a situation where misjudged when Fatigue Deformation at overload.

It please refers to shown in Fig. 3, second sensor 32 is used to incude swing arm 20 and is acted relative to the revolution of tower body 10, practical On, 32 effective induction of second sensor action is since first sensor 31 senses the case where derrick crane overloads , when first sensor 31 senses the overload condition of derrick crane, the induction work of second sensor 32 can be triggered Make, and what second sensor 32 incuded is that whether swing arm 20 is rotating relative to tower body 10, and the information is fed back to control master Machine 50.

In the present embodiment, above-mentioned second sensor 32 includes the second inductance loop 320 and the second contact being mutually matched 321, the first inductance loop 310 and the second inductance loop 320 both sides that be located at swing arm 20 opposite avoid 310 He of the first inductance loop Second inductance loop 320 forms interference between each other, and the second inductance loop 320 is sheathed on tower body 10, and the second contact 321 is set to swing arm 20 side far from the first contact 311.Optionally, the quantity of the second contact 321 can be arranged multiple, each second contact 321 can match with the second inductance loop 320, if second contact 321 is only arranged, when the second contact 321 breaks down When cannot obtain accurate data in time.

Above-mentioned second sensor 32 is identical with the principle of induction of first sensor 31, only the second inductance loop here 320 and second the variation of the distance between contact 321 be to be realized by rotating, it is therefore desirable to be arranged on the second inductance loop 320 One or more induction points, by the variation of distance between induction point and the second contact 321 come realize swing arm 20 and tower body 10 it Between rotational action induction.

Please refer to shown in Fig. 4,3rd sensor 33 be set to loading trolley 21 and for incude loading trolley 21 relative to The sliding action of swing arm 20.The actual induction action of 3rd sensor 33 is also to sense derrick crane in first sensor 31 What the case where overload, started, when first sensor 31 senses the overload condition of derrick crane, third biography can be triggered The induction work of sensor 33, and 3rd sensor 33 incudes be loading trolley 21 whether relative to swing arm 20 in activity, and will The information feeds back to control host 50.In the present embodiment, above-mentioned 3rd sensor 33 includes the induction strip 330 being mutually matched With third contact 331, induction strip 330 along swing arm 20 length direction be arranged, it is generally the case that the length of induction strip 330 with it is small Movement locus length of the vehicle on swing arm 20 is identical, and third contact 331 is fixedly installed on loading trolley 21, when 3rd sensor 33 When receiving the overload signal of first sensor 31, start running, when loading trolley 21 slides on swing arm 20, induction strip 330 and third contact 331 mutually stagger, at this time 3rd sensor 33 can by the active signal of loading trolley 21 feed back to control master Machine 50 is carried out the processing of next step by control host 50.

3rd sensor 33 is identical as the principle of induction of second sensor 32, only, is needed in induction strip 330 here The one or more induction points of setting, loading trolley 21 is perceived by the variation of distance between induction point and third contact 331 Movement.

As shown in Figure 1, locking device 40 includes the first locking piece 41 and the second locking piece 42, the first locking piece 41 is fixed on Tower body 10 and corresponding with swing arm 20, the second locking piece 42 is fixed on loading trolley 21, the first locking piece 41 and the second locking piece 42 It is electrically connected with control host 50, and controls the startup that host 50 is used to control the first locking piece 41 and the second locking piece 42, when When derrick crane works normally, locking device 40 keeps silent status, and host is controlled when overload condition occurs 50 can control locking device 40, and derrick crane is locked, and avoid violation operation when overload.

It please refers to shown in Fig. 5, in the present embodiment, the first above-mentioned locking piece 41 includes slip ring 410, first piston cylinder 411 and multiple positioning columns 412, first piston cylinder 411 is for the length by slip ring 410 and positioning column 412 along tower body 10 Direction pushes.First piston cylinder 411 can be cylinder or oil cylinder, can also carry out first piston cylinder 411 with electric pushrod It substitutes.

First piston cylinder 411 is electrically connected with control host 50, and control host 50 is to pass through to the control of the first locking piece 41 Control what first piston cylinder 411 was realized.Tower body 10 is provided with the sliding rail to match with slip ring 410, and slip ring 410 is sheathed on tower Body 10, and slip ring 410 can slide on sliding rail, and positioning column 412 is fixedly connected with slip ring 410, and multiple positioning columns 412 are configured to the clamping portion 413 for limiting the rotation of swing arm 20, and clamping portion 413 matches with swing arm 20, specifically, clamping portion 413 enveloping space is more than the area of section of swing arm 20, when needing to limit the rotation of swing arm 20, clamping portion 413 and swing arm 20 Clamping, at this point, wherein two positioning columns 412 side close to each other is bonded with the side wall of swing arm 20, to limit swing arm 20 Circumferential movement.Here clamping portion 413 can be stuck by swing arm 20, so that swing arm 20 is kept fixed state.First piston cylinder 411 are fixedly connected on tower body 10 and for pushing slip ring 410 to be slided on sliding rail.

It should be noted that the operation process of the first locking piece 41 is achieved in that the induction of first sensor 31 first To the overload data of derrick crane, the then triggering of first sensor 31 second sensor 32 operating, second sensor 32 is to dynamic The revolution action of arm 20 is monitored, and when swing arm 20 is rotated relative to tower body 10, second sensor 32 believes the action Breath feeds back to control host 50, then sends out instruction by control host 50, at this point, first piston cylinder 411 pushes positioning column 412 to moving The direction of arm 20 is drawn close, and keeps clamping portion 413 that swing arm 20 is stuck, prevents swing arm 20 from normally being rotated again.Can have Rotational action when swing arm 20 being avoided to overload of effect.

It please refers to shown in Fig. 6, in the present embodiment, the second above-mentioned locking piece 42 includes brake component 420, driving member 421 And second piston cylinder 422, the second locking piece 42 are arranged for loading trolley 21, the second locking piece 42 can be small by loading Vehicle 21 is fixed on swing arm 20.

Brake component 420 includes at least two pieces brake blocks 4200 arranged side by side, and brake block 4200 is for the table with swing arm 20 Face pushes against, here it is possible to the stopping element that setting matches with brake block 4200 on swing arm 20, to enhance the system of brake component 420 Dynamic effect.

Driving member 421 includes drive link 4210 and at least two connecting rods 4211 being hinged, wherein a connection One end of bar 4211 is connect with one of brake block 4200, one end of another connecting rod 4211 and another brake block 4200 connections, one end of the separate brake block 4200 of connecting rod 4211 are provided with T-block 4213, and the side of drive link 4210 opens up There are the T type grooves 4212 (as shown in Figure 7) to match with T-block 4213, T-block 4213 can be in T-slot 4212 is slided, T-type Block 4213 is limited by T-slot 4212, can only be moved along the length direction of T-slot 4212, certainly, the end of connecting rod 4211 Portion and drive link 4210 can also use other sliding matching modes, for example, T-block 4213 be arranged to it is spherical or other Shape, and the slot to match with the spherical shape or other shapes is opened up on the length direction of drive link 4210, it can also the company of realization Extension bar 4211 and drive link 4210 are slidably matched, one end and the second piston cylinder of the separate connecting rod 4211 of drive link 4210 422 connections.

It should be noted that there are two the tie points of the second locking piece 42 and loading trolley 21, one of them is two companies The anchor point of extension bar 4211 is connect with loading trolley 21, another tie point is that second piston cylinder 422 is connect with loading trolley 21.

It should be noted that second piston cylinder 422 here can be cylinder or oil cylinder, second piston cylinder 422 also may be used Being substituted with electric pushrod, when second piston cylinder 422 pushes either pulling drive link 4210 movement, two connecting rods Angle between 4211 mutually changes, and the distance between two brake blocks 4200 also change at this time, when need carry out loading When the braking of trolley 21, second piston cylinder 422 pulls drive link 4210, makes two brake blocks 4200 and the stopping element on swing arm 20 It pushes against, loading trolley 21 is kept fixed relative to swing arm 20 at this time, and also allowing in the case of an overload cannot be to loading trolley 21 are operated.

It please refers to shown in Fig. 1, in the present embodiment, warning device 60 is used to receive the instruction of control host 50 and sends out Alarm signal, warning device 60 is audible-visual annunciator, when warning device 60 sends out alarm, Secure Manager discovery can be made to deposit Security risk or violation operation, and timely prevented.Warning device 60 is also connect with monitoring-controlling system signal, monitoring System can carry out the record of overload data, can play certain warning function, in case of safety accident, or The investigation of accident provides data.

In the present embodiment, above-mentioned tripper 70 is set in the power supply box of derrick crane, and tripper 70 is distinguished Be electrically connected with power supply and control host 50, tripper 70, which is used to receive, controls the break signal that sends out of host 50 and by power supply It disconnects.

Specifically, control host 50 conducts the locking operations to derrick crane except through control locking device 40, also The power supply of derrick crane can be disconnected by controlling tripper 70, prevent operator from carrying out overload operation, certainly, when After the power supply of derrick crane disconnects, swing arm 20 and loading trolley 21 still can be sent out under the action of external force or its own gravity Raw movement, above-mentioned locking device 40 can equally play a role, and derrick crane is completely locked, and it is hidden to avoid the occurrence of safety Suffer from.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.It should be noted that It arrives：Similar label and letter indicate similar terms in following attached drawing, therefore, once determined in a certain Xiang Yi attached drawing Justice further need not then be defined and explained to it in subsequent attached drawing.

Claims (5)

1. a kind of self-locking derrick crane, including tower body (10) and swing arm (20), swing arm (20) is rotatablely connected with tower body (10), Mobile loading trolley (21) is provided on swing arm (20), which is characterized in that the derrick crane further includes sensing device (30), locking device (40) and control host (50)；

Sensing device (30) includes first sensor (31), second sensor (32) and 3rd sensor (33), first sensor (31), second sensor (32) and 3rd sensor (33) are electrically connected with control host (50), first sensor (31) and the Two sensors (32) are both secured to tower body (10) and corresponding with swing arm (20), and first sensor (31) is for incuding swing arm (20) Raise up amplitude, and second sensor (32) is used to incude swing arm (20) and is acted relative to the revolution of tower body (10), 3rd sensor (33) it is set to loading trolley (21) and for incuding sliding action of the loading trolley (21) relative to swing arm (20)；

Locking device (40) includes the first locking piece (41) and the second locking piece (42), and the first locking piece (41) is fixed on tower body (10) and corresponding with swing arm (20), the second locking piece (42) is fixed on loading trolley (21), the first locking piece (41) and the second lock Determine part (42) to be electrically connected with control host (50), and controls host (50) for controlling the first locking piece (41) and the second locking The startup of part (42).

2. self-locking derrick crane according to claim 1, which is characterized in that first sensor (31) includes mutual The first inductance loop (310) and the first contact (311) matched, the first inductance loop (310) are sheathed on tower body (10), the first contact (311) it is fixed on the side corresponding with the first inductance loop (310) of swing arm (20).

3. self-locking derrick crane according to claim 2, which is characterized in that second sensor (32) includes mutual The second inductance loop (320) and the second contact (321) matched, the first inductance loop (310) are located at dynamic with the second inductance loop (320) The opposite both sides of arm (20), the second inductance loop (320) are sheathed on tower body (10), and the second contact (321) is set to swing arm (20) Side far from the first contact (311).

4. self-locking derrick crane according to claim 1, which is characterized in that 3rd sensor (33) includes mutual The induction strip (330) and third contact (331) matched, induction strip (330) are arranged along the length direction of swing arm (20), third contact (331) it is fixedly installed on loading trolley (21).

5. self-locking derrick crane according to claim 1, which is characterized in that the derrick crane further includes breaking dress Set (70), which is set in the power supply box of derrick crane, tripper (70) respectively with power supply and control Host (50) electrical connection processed, breaker are used to receive the break signal that control host (50) is sent out and disconnect power supply.