CN207418158U

CN207418158U - A kind of crane

Info

Publication number: CN207418158U
Application number: CN201721284109.8U
Authority: CN
Inventors: 孙平
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-01
Filing date: 2017-10-01
Publication date: 2018-05-29
Anticipated expiration: 2027-10-01

Abstract

The utility model discloses a kind of cranes, including turntable and crane arm, one end of the crane arm and turntable is rotatablely connected, the crane arm is fixedly connected with driving motor close to one end of turntable, the crane arm is equipped with the first cavity close to one end of driving motor, the output terminal of the driving motor is fixedly connected with drive link, the one end of the drive link away from driving motor is run through the outer wall of crane arm and is extended into the first cavity, one end of the drive link extension is connected with the interior lower rotation of the first cavity, one end fixing sleeve that the drive link is located in the first cavity is connected to first gear, the second gear being meshed with first gear is equipped in first cavity.The utility model allows the position of setting-up mast on device freely to be adjusted according to actual lifting situation by the setting of the first screw rod and the second screw rod, while the height of mast can also be adjusted freely, so as to improve the scope of application of device.

Description

A kind of crane

Technical field

The utility model is related to technical field of engineering machinery more particularly to a kind of cranes.

Background technology

Crane refers to more action hoisting machineries of vertical-lift within the specific limits and horizontal carrying heavy goods, also known as day Vehicle, hanging, crane, wheel-mounted crane are mainly characterized by：It travels driver's cabin and is combined into one with lifting control cabinl pulpit, is by crawler belt Crane develops, and the crawler belt of walking mechanism and mobile holder part are become the chassis for having tire, overcomes crawler belt lifting The shortcomings that machine creeper tread road pavement damages, belongs to material carrying machine；Bridge crane is crossbearer in workshop, warehouse and material Field overhead carries out the lifting equipment of material handling, is located at due to its both ends on tall and big concrete column or metallic support, shape Shape like bridge, the crane span structure of bridge crane along be laid on both sides it is overhead on track it is longitudinally running, can make full use of below crane span structure Space handling material, from the obstruction of ground installation, it is a kind of hoisting machinery that use scope is most wide, quantity is most, is surpassed Lifting device is to be mainly used in large-tonnage（400 tons with higher level）Crawler crane and the full Terrain Cranes, super lifting device be Y shape boom type setting-up support arm is set between principal arm and principal arm tip, to improve principal arm geometrical relationship parallel with wire digging line, together Shi Chaoqi support arms are connected with counterweight, form double triangles and consolidate form, complete machine arm stability are added, so as to improve crane Performance.

But the structure of crane super lifting device of the prior art is relatively simple, the position of setting-up mast can not be according to reality The lifting situation on border is freely adjusted, while the height of setting-up mast is relatively fixed, can not carry out certain adjusting, so as to The scope of application of super lifting device is affected, there is certain use defect.

It would therefore be highly desirable to a kind of crane is designed, it is relatively simple to solve the structure of crane super lifting device in the prior art, The position of setting-up mast can not freely be adjusted according to actual lifting situation, while the height of setting-up mast is relatively fixed The problem of.

Utility model content

The purpose of this utility model is for relatively simple, the setting-up that solves the structure of crane super lifting device in the prior art The position of mast can not freely be adjusted according to actual lifting situation, while the height of setting-up mast relatively fixed is asked Topic, and a kind of crane proposed.

To achieve these goals, the utility model employs following technical solution：

A kind of crane, including turntable and crane arm, one end rotation connection of the crane arm and turntable, the crane arm Driving motor is fixedly connected with close to one end of turntable, the crane arm is equipped with the first cavity, institute close to one end of driving motor The output terminal for stating driving motor is fixedly connected with drive link, and the one end of the drive link away from driving motor is through the outer of crane arm Wall simultaneously extends into the first cavity, and one end of the drive link extension is connected with the interior lower rotation of the first cavity, the transmission One end fixing sleeve that bar is located in the first cavity is connected to first gear, is equipped with what is be meshed with first gear in first cavity The madial wall of second gear, the second gear and the first cavity is rotatablely connected by the first screw rod, the top of the crane arm Equipped with sliding slot, the described one end of first screw rod away from second gear is run through the inner wall of the first cavity and is extended into sliding slot, described One end of first screw rod extension and the madial wall rotation connection of sliding slot, first screw rod are located at one section of screw thread socket in sliding slot There is bearing block, the top of the bearing block is connected with control block, the one end of the control block away from bearing block by bar rotation Through sliding slot notch and extend outwardly, the second cavity is equipped in the control block, the is rotatably connected in second cavity Two screw rods, fixing sleeve is connected to the 3rd gear on second screw rod, is rotatably connected in second cavity and the 3rd gear phase The worm screw of engagement, the one end of the worm screw away from the 3rd gear is through the interior bottom of the second cavity and extends outwardly, the bull stick Upper fixing sleeve is connected to the 4th gear for extending one end with worm screw and being meshed, and the described one end of second screw rod away from the 3rd gear is run through The inner top of second cavity simultaneously extends outwardly, and the threaded one end of the second screw rod extension is socketed with setting-up mast, the setting-up Mast is equipped with thread groove corresponding with the second screw rod, and the top of the setting-up mast and control block passes through multiple damping shock absorbers Connection, the top of the setting-up mast is rotatably connected to wire wheel by shaft, steel wire rope is arranged on the wire wheel, described The both ends of steel wire rope are rotatablely connected respectively with the lifting end of turntable and crane arm, and the one end of the crane arm away from turntable is equipped with peace Tankage, is rotatably connected to hydraulic cylinder in the mounting groove, the output terminal of the hydraulic cylinder through mounting groove notch and with The outer wall rotation connection of setting-up mast, first screw rod rotate close to one end of second gear and are socketed with two fixing sleeves, and two Inner wall of the opposite one side of a fixing sleeve respectively with the first cavity inner wall and sliding slot offsets, the interior basal sliding of the sliding slot Multiple balls are connected with, the edge and bearing block of the ball are in contact.

Preferably, it is arranged with dust cover on the driving motor.

Preferably, it is fixedly sleeved there are two supporting sleeve on the worm screw, the opposite one side of two supporting sleeves respectively with Second cavity inner wall and the bottom connection of control block touch.

Preferably, one end that second screw rod is located in thread groove is fixedly connected with limited block.

Preferably, be arranged with torque spring in the shaft, the both ends of the torque spring respectively with wire wheel and setting-up Mast is fixedly connected.

Preferably, grease paint is coated on the steel wire rope.

In the utility model, user when in use, first rises crane arm, then opens hydraulic cylinder and drives setting-up mast Bar rises, while bull stick drives the 4th gear to rotate, and by the engagement between the 4th gear and worm screw worm screw is driven to rotate, By the engagement between worm screw and the 3rd gear the second screw rod is driven to rotate, under the action of damping shock absorber, driven super It plays mast to rise, so as to which steel wire rope be driven to be extracted out from wire wheel, then opens driving motor and drive drive rod rotation, by the Engagement between one gear and second gear drives the first screw rod to rotate, so as to drive control block or so shifting by bearing block It is dynamic, the position of setting-up mast is adjusted, while ball can reduce the frictional force between bearing block and sliding slot.The utility model passes through The setting of first screw rod and the second screw rod allows the position of setting-up mast on device to be carried out freely according to actual lifting situation Adjusting, while the height of mast can also be adjusted freely, so as to improve the scope of application of device.

Description of the drawings

Fig. 1 be the utility model proposes a kind of crane structure diagram；

Fig. 2 be the utility model proposes a kind of the second screw rod of crane at side structure schematic view；

Fig. 3 is structure diagram at the A of Fig. 1；

Fig. 4 is structure diagram at the B of Fig. 1.

In figure：1 turntable, 2 crane arms, 3 driving motors, 4 drive links, 5 first gears, 6 second gears, 7 first screw rods, 8 Bearing block, 9 bull sticks, 10 control blocks, 11 second screw rods, 12 the 3rd gears, 13 worm screws, 14 the 4th gears, 15 setting-up masts, 16 resistances Buddhist nun's damper, 17 shafts, 18 wire wheels, 19 steel wire ropes, 20 hydraulic cylinders, 21 fixing sleeves, 22 balls, 23 dust covers, 24 supports Set, 25 limited blocks.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.

In the description of the utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", The orientation or position relationship of the instructions such as " top ", " bottom ", " interior ", " outer " are based on orientation shown in the drawings or position relationship, are only The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.

With reference to Fig. 1-4, a kind of crane, including turntable 1 and crane arm 2, one end of crane arm 2 and turntable 1 is rotatablely connected, Crane arm 2 is fixedly connected with driving motor 3 close to one end of turntable 1, and for drive link 4 to be driven to rotate, crane arm 2 is close to driving One end of motor 3 is equipped with the first cavity, and for setting second gear 6, the output terminal of driving motor 3 is fixedly connected with drive link 4, For first gear 5 to be driven to rotate, the one end of drive link 4 away from driving motor 3 through crane arm 2 outer wall and to the first cavity Interior extension, one end that drive link 4 extends are connected with the interior lower rotation of the first cavity, and drive link 4 is located at one in the first cavity End fixing sleeve is connected to first gear 5, is equipped with what is be meshed with first gear 5 for second gear 6 to be driven to rotate, in the first cavity Second gear 6, for the first screw rod 7 to be driven to rotate, the madial wall of 6 and first cavity of second gear is rotated by the first screw rod 7 Connection, the top of crane arm 2 are equipped with sliding slot, and for setting bearing block 8, first one end of screw rod 7 away from second gear 6 is through the The inner wall of one cavity simultaneously extends into sliding slot, one end of the first screw rod 7 extension and the madial wall rotation connection of sliding slot, the first screw rod 7 one section of screw thread being located in sliding slot are socketed with bearing block 8, are used to support control block 10.

It should be noted that such arrangement of 3 and first screw rod 7 of motor is taken to change the transmission direction of motor 3, It will save along the arrangement space on 7 length direction of the first screw rod, be easily installed use.

The top of bearing block 8 is rotatably connected to control block 10 by bull stick 9, is used to support setting-up mast 15, control block 10 One end away from bearing block 8 runs through the notch of sliding slot and extends outwardly, and the second cavity is equipped in control block 10, for setting the 3rd Gear 12 is rotatably connected to the second screw rod 11 in second cavity, solid on the second screw rod 11 for adjusting the height of setting-up mast 15 Surely the 3rd gear 12 is socketed with, for the second screw rod 11 to be driven to rotate, is rotatably connected in the second cavity and 12 phase of the 3rd gear The worm screw 13 of engagement, for the 3rd gear 12 to be driven to rotate, the one end of worm screw 13 away from the 3rd gear 12 is through the second cavity Interior bottom simultaneously extends outwardly, and fixing sleeve is connected to the 4th gear 14 for extending one end with worm screw 13 and being meshed on bull stick 9, for driving Worm screw 13 rotates, and second one end of screw rod 11 away from the 3rd gear 12 runs through the inner top of the second cavity and extends outwardly, and second The threaded one end that screw rod 11 extends is socketed with setting-up mast 15, is used to support steel wire rope 19, and setting-up mast 15 is equipped with and second The top of 11 corresponding thread groove of screw rod, setting-up mast 15 and control block 10 is connected by multiple damping shock absorbers 16, is being prevented The punching of 15 action process of setting-up mast plays cushioning effect while twisting, and setting-up mast 15 is avoided to be touched firmly before and after action It hits.

In addition, the design method of 9 and second screw rod 11 of bull stick can be by changing the 3rd gear 12 or the 4th gear 14 Size changes transmission speed, and this design makes transmission system more reliable and more stable.

The top of setting-up mast 15 is rotatably connected to wire wheel 18 by shaft 17, for winding steel wire rope 19, wire wheel Steel wire rope 19 is arranged on 18, for drawing crane arm 2, the both ends of the steel wire rope 19 lifting end with turntable 1 and crane arm 2 respectively Rotation connection, the one end of crane arm 2 away from turntable 1 are equipped with mounting groove, for installing hydraulic cylinder 20, are rotatablely connected in mounting groove There is hydraulic cylinder 20, for setting-up mast 15 to be driven to rise, the output terminal of hydraulic cylinder 20 runs through the notch of mounting groove and with surpassing Play the outer wall rotation connection of mast 15.

In the utility model, the first screw rod 7 rotates close to one end of second gear 6 and is socketed with two fixing sleeves 21, two Inner wall of the opposite one side of fixing sleeve 21 respectively with the first cavity inner wall and sliding slot offsets, and prevents the first screw rod 7 from rocking, sliding slot Interior basal sliding is connected with multiple balls 22, and the edge and bearing block 8 of ball 22 are in contact, and reduces bearing block 8 and sliding slot inner wall Between frictional force, be arranged with dust cover 23 on driving motor 3, prevent that dust from entering driving motor 3, it is fixedly sleeved on worm screw 13 There are two supporting sleeve 24, the opposite one side of two supporting sleeves 24 respectively with the second cavity inner wall and the bottom connection of control block 10 It touches, prevents worm screw 13 from rocking, one end that the second screw rod 11 is located in thread groove is fixedly connected with limited block 25, prevents the second screw rod 11 are adjusted excessively, and torque spring is arranged in shaft 17, and the both ends of torque spring are solid with wire wheel 18 and setting-up mast 15 respectively Fixed connection, automatically retracts steel wire rope 19, coated with grease paint on steel wire rope 19, steel wire rope 19 is prevented to be corroded.

In the utility model, during lifting cargo, first the cargo for needing to lift by crane is connected with the lifting head of crane arm 2, by It is rotatably connected in crane arm 2 on turntable 1, so first opening the fluid pressure drive device on turntable 1, crane arm 2 is driven to rise, so Opening hydraulic cylinder 20 afterwards drives setting-up mast 15 to rise, while bull stick 9 drives the 4th gear 14 to rotate, and passes through the 4th gear 14 Engagement between worm screw 13 drives worm screw 13 to rotate, and is driven by the engagement between the 12 of 13 and the 3rd gear of worm screw Second screw rod 11 rotates, and under the action of damping shock absorber 16, setting-up mast 15 is driven to rise, vertical object is hung to work as crane arm 2 During body, setting-up mast 15, which is erect, to be driven steel wire rope 19 to form triangle pair crane arm 2 to be supported, so as to drive steel wire rope 19 from It is extracted out on wire wheel 18, to form triangle under the drive of setting-up mast 15, crane arm 2 is supported, is then opened Driving motor 3 drives drive link 4 to rotate, and the first screw rod 7 is driven by the engagement between first gear 5 and second gear 6 It rotates, so as to by bearing block 8 control block 10 be driven to move left and right, the position of setting-up mast 15 is adjusted, to control steel wire rope 19 angle of triangle formed, so as to adjust the load-bearing capacity of crane arm 2, while ball 22 can reduce bearing block 8 and sliding slot it Between frictional force.

The above is only the preferable specific embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of crane, including turntable（1）And crane arm（2）, which is characterized in that the crane arm（2）And turntable（1）One End rotation connection, the crane arm（2）Close to turntable（1）One end be fixedly connected with driving motor（3）, the crane arm（2） Close to driving motor（3）One end be equipped with the first cavity, the driving motor（3）Output terminal be fixedly connected with drive link（4）, The drive link（4）Away from driving motor（3）One end run through crane arm（2）Outer wall and extend into the first cavity, it is described Drive link（4）One end of extension is connected with the interior lower rotation of the first cavity, the drive link（4）One in the first cavity End fixing sleeve is connected to first gear（5）, it is equipped in first cavity and first gear（5）The second gear being meshed（6）, institute State second gear（6）Pass through the first screw rod with the madial wall of the first cavity（7）Rotation connection, the crane arm（2）Top set There are sliding slot, first screw rod（7）Away from second gear（6）One end through the first cavity inner wall and extend into sliding slot, First screw rod（7）One end of extension and the madial wall rotation connection of sliding slot, first screw rod（7）One in sliding slot Section screw thread is socketed with bearing block（8）, the bearing block（8）Top pass through bull stick（9）It is rotatably connected to control block（10）, it is described Control block（10）Away from bearing block（8）One end through sliding slot notch and extend outwardly, the control block（10）Inside it is equipped with Two cavitys are rotatably connected to the second screw rod in second cavity（11）, second screw rod（11）Upper fixing sleeve is connected to the 3rd Gear（12）, it is rotatably connected to and the 3rd gear in second cavity（12）The worm screw being meshed（13）, the worm screw（13） Away from the 3rd gear（12）One end through the second cavity interior bottom and extend outwardly, the bull stick（9）Upper fixing sleeve is connected to With worm screw（13）The 4th gear that extension one end is meshed（14）, second screw rod（11）Away from the 3rd gear（12）One end Through the second cavity inner top and extend outwardly, second screw rod（11）The threaded one end of extension is socketed with setting-up mast （15）, the setting-up mast（15）It is equipped with and the second screw rod（11）Corresponding thread groove, the setting-up mast（15）And control Block（10）Top pass through multiple damping shock absorbers（16）Connection, the setting-up mast（15）Top pass through shaft（17）It rotates It is connected with wire wheel（18）, the wire wheel（18）On be arranged with steel wire rope（19）, the steel wire rope（19）Both ends respectively with Turntable（1）And crane arm（2）Lifting end rotation connection, the crane arm（2）Away from turntable（1）One end be equipped with mounting groove, Hydraulic cylinder is rotatably connected in the mounting groove（20）, the hydraulic cylinder（20）Output terminal through mounting groove notch simultaneously With setting-up mast（15）Outer wall rotation connection, first screw rod（7）Close to second gear（6）One end rotate be socketed with two A fixing sleeve（21）, two fixing sleeves（21）Inner wall of the opposite one side respectively with the first cavity inner wall and sliding slot offsets, The interior basal sliding of the sliding slot is connected with multiple balls（22）, the ball（22）Edge and bearing block（8）It is in contact.

A kind of 2. crane according to claim 1, which is characterized in that the driving motor（3）On be arranged with dust cover （23）.

A kind of 3. crane according to claim 1, which is characterized in that the worm screw（13）It is above fixedly sleeved that there are two branch Support set（24）, two supporting sleeves（24）Opposite one side respectively with the second cavity inner wall and control block（10）Bottom connection It touches.

A kind of 4. crane according to claim 1, which is characterized in that second screw rod（11）In thread groove One end is fixedly connected with limited block（25）.

A kind of 5. crane according to claim 1, which is characterized in that the shaft（17）On be arranged with torque spring, The both ends of the torque spring respectively with wire wheel（18）With setting-up mast（15）It is fixedly connected.

A kind of 6. crane according to claim 1, which is characterized in that the steel wire rope（19）It is upper to be applied coated with grease Material.