CN207986546U - A kind of arm of overhead system luffing with payload crane - Google Patents

Abstract

The utility model provides a kind of arm of overhead system luffing with payload crane, is related to crane facility field.The arm of the overhead system luffing with payload crane, including pedestal, the top right side of the pedestal is installed with support arm, the top of the support arm is connected with lifting arm by axis, the inner wall both sides of the support arm are fixedly connected by pedestal, the support arm is internally provided with threaded rod, and one end of the threaded rod runs through pedestal and extends to the downside of pedestal.The arm of the overhead system luffing with payload crane, second bevel gear rotation is driven by first bevel gear, make mobile sliding block as threaded rod moves up and down, play the role of mobile first fixed block, change position by the first fixed block and achieve the effect that luffing, while playing the role of supporting lifting arm, the power of luffing is avoided all to be born by steel wire rope and wire cable rupture lifting arm is caused to fall, security risk is caused, peace safety guarantee is provided for people.

Description

A kind of arm of overhead system luffing with payload crane

Technical field

The utility model is related to technical field of crane equipment, a kind of specially overhead system luffing with payload crane is hung Arm.

Background technology

Crane refers to more action hoisting machineries of vertical-lift in a certain range and horizontal carrying heavy goods, with various The continuous development of engineering construction, the requirement to various engineering equipments is higher and higher, and the continuous application of new technology improves engineering and sets Standby ability to work and working efficiency, crane is also more and more diversified, and overhead system luffing with payload crane is also one of which Highly important crane.

Currently, general luffing crane, crane arm use steel cable after pulley passes around in the market, both ends are drawn It is fixed on amplitude-changing drum to computer room.All thus root steel wire rope undertakes the power of entire luffing at this time, once wire cable rupture occurs The case where, elevator boom rack falls because of the weight of itself, so that crane is damaged and causes safety accident, while general luffing rises When crane loading weight moves, due to only using steel wire rope connection hook, causes the steel wire rope that connection is linked up with might have and break Security risk, bring many inconvenience for people.

Utility model content

（One）The technical issues of solution

In view of the deficiencies of the prior art, the utility model provides a kind of arm of overhead system luffing with payload crane, solution It has determined general luffing crane inconvenient problem with use.

（Two）Technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of overhead system luffing with payload The top right side of the arm of crane, including pedestal, the pedestal is installed with support arm, passes through at the top of the support arm Axis is connected with lifting arm, and the inner wall both sides of the support arm are fixedly connected by pedestal, and the inside of the support arm is set It is equipped with threaded rod, one end of the threaded rod runs through pedestal and extends to the downside of pedestal, and the both ends of the threaded rod are movable It is socketed with bearing block, side of the bearing block far from threaded rod is fixedly connected with the inner wall of support arm, outside the threaded rod Surface and the upside movable sleeve for being located at pedestal are connected to mobile sliding block, and the right end of the mobile sliding block runs through the inner wall of support arm and prolongs The outside of support arm is extended to, one end that the mobile sliding block extends to outside support arm is installed with the first fixed block, described It is installed with telescopic rod at the top of pedestal, first is installed on the right side of the inner wall of the support arm and on the downside of pedestal Motor, the output end of the first motor are installed with first bevel gear, the outer surface of the threaded rod and positioned at pedestal Downside fixing sleeve is connected to second bevel gear, and the first bevel gear and second bevel gear are mutually ratcheting.

The bottom of the lifting arm is installed with the second fixed block, and the top of first fixed block passes through axis activity It is connected with connecting rod, the one end of the connecting rod far from the first fixed block is connected by the bottom activity of axis and the second fixed block It connects, the inner wall back side both sides of the lifting arm are installed with the second motor, and the output end of second motor is fixedly mounted There are gear, two gears to be fixedly connected by chain, the front of the chain is installed with limited block, the appearance of the limited block Face movable sleeve is connected to moving sliding sleeve, and the bottom of the moving sliding sleeve is installed with hook, is opened up on the left of the inner wall of the pedestal Fluted, the inner wall back side of the groove is connected with pulley by axis, and the pulley passes through in steel wire rope and hook Portion is flexibly connected.

Preferably, sliding slot compatible with mobile sliding block, the mobile sliding block are offered on the left of the inner wall of the support arm It is slided in sliding slot.

Preferably, the inner wall right side opening of the support arm is equipped with the first straight slot compatible with mobile sliding block, the movement Sliding block is moved up and down by the first straight slot in support arm.

Preferably, the top of the telescopic rod is fixedly connected with mobile sliding block, the outer surface pivot bush unit of the telescopic rod There is spring.

Preferably, the bottom of the lifting arm offers and links up with compatible second straight slot, and the hook passes through second Straight slot moves left and right in lifting arm.

Preferably, be installed with the first fixture block at the top and bottom of the inner wall of the groove, the steel wire rope up and down Both ends are both provided with the second fixture block.

（Three）Advantageous effect

The utility model provides a kind of arm of overhead system luffing with payload crane.Has following advantageous effect：

1, the arm of the overhead system luffing with payload crane drives second bevel gear rotation by first bevel gear, makes shifting Movable slider is moved up and down with threaded rod, plays the role of mobile first fixed block, and changing position by the first fixed block reaches The effect of luffing, while playing the role of supporting lifting arm, avoid the power of luffing from all being born by steel wire rope and steel wire rope is caused to break Lifting arm whereabouts is split, security risk is caused, peace safety guarantee is provided for people.

2, the arm of the overhead system luffing with payload crane, gear and chain are used cooperatively so that moving sliding sleeve drives Hook movement, reduces the burden of steel wire rope, and steel wire rope is avoided to break because weight is too heavy and cause security risk, is brought perhaps for people More convenience.

Description of the drawings

Fig. 1 is the utility model structure front view；

Fig. 2 is the utility model support arm structure sectional view；

Fig. 3 is schematic enlarged-scale view at A in the utility model Fig. 2；

Fig. 4 is the utility model lifting arm structure sectional view；

Fig. 5 is schematic enlarged-scale view at B in the utility model Fig. 4；

Fig. 6 is schematic enlarged-scale view at C in the utility model Fig. 4.

In figure, 1 pedestal, 2 support arms, 3 lifting arms, 4 first fixed blocks, 5 second fixed blocks, 6 connecting rods, 7 pedestals, 8 spiral shells Rasp bar, 9 bearing blocks, 10 movement sliding blocks, 11 sliding slots, 12 telescopic rods, 13 springs, 14 first motors, 15 first bevel gears, 16 second Bevel gear, 17 second motors, 18 gears, 19 chains, 20 limited blocks, 21 moving sliding sleeves, 22 hooks, 23 first straight slots, 24 pulleys, 25 steel wire ropes, 26 grooves, 27 first fixture blocks, 28 second fixture blocks, 29 second straight slots.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

The utility model embodiment provides a kind of arm of overhead system luffing with payload crane, as shown in figures 1 to 6, including bottom Seat 1, the top right side of pedestal 1 is installed with support arm 2, and the top of support arm 2 is connected with lifting arm 3 by axis, The inner wall both sides of support arm 2 are fixedly connected by pedestal 7, and support arm 2 is internally provided with threaded rod 8, and one end of threaded rod 8 is passed through It wears pedestal 7 and extends to the downside of pedestal 7, the equal movable sleeve in both ends of threaded rod 8 is connected to bearing block 9, and bearing block 9 is far from threaded rod 8 side is fixedly connected with the inner wall of support arm 2, the outer surface of threaded rod 8 and is connected to movement positioned at the upside movable sleeve of pedestal 7 The inner wall left side of sliding block 10, support arm 2 offers sliding slot 11 compatible with mobile sliding block 10, and mobile sliding block 10 is in sliding slot 11 Sliding so that mobile sliding block 10 is easier the sliding in support arm 2, prevents mobile sliding block 10 from blocking when moving, causes lifting Machine failure and he brings security risk, the right end of mobile sliding block 10 through support arm 2 inner wall and extend to the outside of support arm 2, The inner wall right side opening of support arm 2 is equipped with first straight slot 23 compatible with mobile sliding block 10, and mobile sliding block 10 passes through the first straight slot 23 move up and down in support arm 2 so that mobile sliding block 10 can drive the first fixed block 4 to move up and down, and play crane change The effect of width, one end that mobile sliding block 10 extends to outside support arm 2 are installed with the first fixed block 4, and the top of pedestal 7 is solid Dingan County is equipped with telescopic rod 12, and the top of telescopic rod 12 is fixedly connected with mobile sliding block 10, the outer surface pivot bush unit of telescopic rod 12 There is spring 13, buffering is played the role of by spring 13, when preventing lifting, weight causes very much mobile sliding fast 10 quickly to glide again, So that safety accident is caused in the whereabouts of lifting arm 3, safety guarantee is provided for people, on the right side of the inner wall of support arm 2 and is located at pedestal 7 Downside is installed with first motor 14, and the output end of first motor 14 is installed with first bevel gear 15, threaded rod 8 it is outer Surface and the downside fixing sleeve for being located at pedestal 7 are connected to second bevel gear 16, first bevel gear 15 and 16 mutual tooth of second bevel gear It closes, the arm of the overhead system luffing with payload crane, drives second bevel gear 16 to rotate by first bevel gear 15, make mobile cunning Block 10 is moved up and down with threaded rod 8, plays the role of mobile first fixed block 4, and changing position by the first fixed block 4 reaches The effect of luffing, while playing the role of supporting lifting arm 3, avoid the power of luffing from all being born by steel wire rope 25 and lead to steel wire rope 25 fracture lifting arms 3 fall, and cause security risk, peace safety guarantee is provided for people.

The bottom of lifting arm 3 is installed with the second fixed block 5, and the top of the first fixed block 4 is flexibly connected by axis There are connecting rod 6, the one end of connecting rod 6 far from the first fixed block 4 to be flexibly connected with the bottom of the second fixed block 5 by axis, rises The inner wall back side both sides of arm 3 are installed with the second motor 17, and the output end of the second motor 17 is installed with gear 18, Two gears 18 are fixedly connected by chain 19, and the front of chain 19 is installed with limited block 20, and the outer surface of limited block 20 is lived Dynamic to be socketed with moving sliding sleeve 21, the bottom of moving sliding sleeve 21 is installed with hook 22, and the bottom of lifting arm 3 offers and links up with 22 compatible second straight slots 29, hook 22 are moved left and right by the second straight slot 29 in lifting arm 3 so that hook 22 can be left It moves right, increases the range that crane uses, improve working efficiency, fluted 26 are opened up on the left of the inner wall of pedestal 1, groove 26 The inner wall back side is connected with pulley 24 by axis, and pulley 24 is connect by steel wire rope 25 with the internal activity of hook 22, recessed Be installed with the first fixture block 27 at the top and bottom of the inner wall of slot 26 and positioned at the right side of steel wire rope 25, steel wire rope 25 up and down Both ends are both provided with the second fixture block 28, and pulley 24 is not rotated when crane is normal, are drawn when there is safety accident steel wire rope 25 It is disconnected, by being used cooperatively for the first fixture block 27 and the second fixture block, steel wire rope 25 is blocked, prevents weight from continuing to fall, plays guarantor Shield acts on, and safety guarantee is brought for the life and health of people, and gear 18 and chain 19 are used cooperatively so that 21 band of moving sliding sleeve 22 movement of dynamic hook, reduces the burden of steel wire rope 25, avoids steel wire rope 25 from breaking because weight is too heavy and cause security risk, is people Bring many convenience.

Operation principle：First, crane is faced into weight, then first motor 14 starts so that first bevel gear 15 the Two bevel gears 16 rotate, and and then threaded rod 8, which rotates, makes mobile sliding block 10 move up and down, and changes the position of the first fixed block 4, First fixed block 4 drives the second fixed block 5 by connecting rod 6 so that about 3 luffing of lifting arm regulates lifting arm 3, then Second motor 17 works, and gear 18 rotates so that the top that moving sliding sleeve 21 drives hook 22 to be moved to weight will finally be hung Hook 22, which is fallen, slings weight.

In conclusion the arm of the overhead system luffing with payload crane, second bevel gear is driven by first bevel gear 15 16 rotations make mobile sliding block 10 as threaded rod 8 moves up and down, and play the role of mobile first fixed block 4, are fixed by first Block 4 changes position and achievees the effect that luffing, while playing the role of supporting lifting arm 3, avoids the power of luffing all by steel wire rope 25 It bears and causes steel wire rope 25 to be broken lifting arm 3 and fall, cause security risk, peace safety guarantee is provided for people.

Also, gear 18 and chain 19 are used cooperatively so that moving sliding sleeve 21 drives 22 movement of hook, reduces steel wire rope 25 burden avoids steel wire rope 25 from breaking because weight is too heavy and cause security risk, and many convenience are brought for people.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of arm of overhead system luffing with payload crane, including pedestal（1）, the pedestal（1）Top right side fix peace Equipped with support arm（2）, the support arm（2）Top lifting arm is connected with by axis（3）, it is characterised in that：It is described Support arm（2）Inner wall both sides pass through pedestal（7）It is fixedly connected, the support arm（2）Be internally provided with threaded rod（8）, institute State threaded rod（8）One end run through pedestal（7）And extend to pedestal（7）Downside, the threaded rod（8）The equal movable sleeve in both ends It is connected to bearing block（9）, the bearing block（9）Far from threaded rod（8）Side and support arm（2）Inner wall be fixedly connected, it is described Threaded rod（8）Outer surface and be located at pedestal（7）Upside movable sleeve be connected to mobile sliding block（10）, the mobile sliding block（10）'s Right end runs through support arm（2）Inner wall and extend to support arm（2）Outside, the mobile sliding block（10）Extend to support arm （2）External one end is installed with the first fixed block（4）, the pedestal（7）Top be installed with telescopic rod（12）, institute State support arm（2）Inner wall on the right side of and be located at pedestal（7）Downside be installed with first motor（14）, the first motor （14）Output end be installed with first bevel gear（15）, the threaded rod（8）Outer surface and be located at pedestal（7）Downside Fixing sleeve is connected to second bevel gear（16）, the first bevel gear（15）With second bevel gear（16）It is mutually ratcheting；

The lifting arm（3）Bottom be installed with the second fixed block（5）, first fixed block（4）Top pass through Axis is connected with connecting rod（6）, the connecting rod（6）Far from the first fixed block（4）One end pass through axis and second fix Block（5）Bottom flexible connection, the lifting arm（3）Inner wall back side both sides be installed with the second motor（17）, described Second motor（17）Output end be installed with gear（18）, two gears（18）Pass through chain（19）It is fixedly connected, the chain Item（19）Front be installed with limited block（20）, the limited block（20）Outer surface movable sleeve be connected to moving sliding sleeve （21）, the moving sliding sleeve（21）Bottom be installed with hook（22）, the pedestal（1）Inner wall on the left of open up it is fluted （26）, the groove（26）The inner wall back side pulley is connected with by axis（24）, the pulley（24）Pass through steel wire rope （25）With hook（22）Internal activity connection.

2. a kind of arm of overhead system luffing with payload crane according to claim 1, it is characterised in that：The support arm （2）Inner wall on the left of offer and mobile sliding block（10）Compatible sliding slot（11）, the mobile sliding block（10）In sliding slot（11） Interior sliding.

3. a kind of arm of overhead system luffing with payload crane according to claim 1, it is characterised in that：The support arm （2）Inner wall right side opening be equipped with and mobile sliding block（10）Compatible first straight slot（23）, the mobile sliding block（10）Pass through One straight slot（23）In support arm（2）Inside move up and down.

4. a kind of arm of overhead system luffing with payload crane according to claim 1, it is characterised in that：The telescopic rod （12）Top and mobile sliding block（10）It is fixedly connected, the telescopic rod（12）Outer surface movable sleeve be connected to spring（13）.

5. a kind of arm of overhead system luffing with payload crane according to claim 1, it is characterised in that：The lifting arm （3）Bottom offer and link up with（22）Compatible second straight slot（29）, the hook（22）Pass through the second straight slot（29） Lifting arm（3）Inside move left and right.

6. a kind of arm of overhead system luffing with payload crane according to claim 1, it is characterised in that：The groove （26）Inner wall at the top and bottom of be installed with the first fixture block（27）, the steel wire rope（25）Upper and lower ends be both provided with Second fixture block（28）.