CN115057378B - Backward-tipping prevention device of tower crane - Google Patents
Backward-tipping prevention device of tower crane Download PDFInfo
- Publication number
- CN115057378B CN115057378B CN202210939704.XA CN202210939704A CN115057378B CN 115057378 B CN115057378 B CN 115057378B CN 202210939704 A CN202210939704 A CN 202210939704A CN 115057378 B CN115057378 B CN 115057378B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- movable
- assembly
- fixed
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- B66C23/92—Snubbers or dashpots for preventing backwards swinging of jibs, e.g. in the event of cable or tackle breakage
-
- 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
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
Abstract
The invention discloses a tower crane anti-back-tipping device, which relates to the technical field of crane accessories and comprises a hoisting assembly, an adjusting assembly, a driving assembly and a monitoring assembly, wherein the adjusting assembly is arranged on one side of the hoisting assembly, the driving assembly is arranged at one end of the adjusting assembly, and the monitoring assembly is arranged above the hoisting assembly. According to the invention, the hoisting assembly is arranged, the hoisting arm in the hoisting assembly can realize hoisting work, the adjusting assembly is arranged on one side of the hoisting assembly, the movable plate capable of sliding is arranged in the adjusting assembly, the movable balancing weight is arranged below the movable plate, when the hoisting arm hoists goods, the angle of the hoisting arm changes, and the movable balancing weight is driven by the movable plate to move, so that the lever force arms formed by the movable balancing weight and the hoisting arm are equal, the acting force on the hoisting arm is kept balanced, and the risk of the tower crane backward tilting is reduced.
Description
Technical Field
The invention relates to the technical field of crane accessories, in particular to a back-tilting prevention device of a tower crane.
Background
The jib of a luffing tower crane can be luffed from a horizontal position to a near vertical position, with the luffing being greatest when the jib is in the horizontal position and least when the jib luffing is near the vertical position. During operation, due to the action of the inertial load and the wind load, the crane boom may generate impact with high rigidity with the tower top or tip backwards in the amplitude variation process.
At present, in order to prevent a boom from tipping backwards in an amplitude changing process and solve the problem of rigid impact between the boom and a tower top, a backward tilting prevention structure is generally installed in a boom tower crane, when the tower crane is used for hoisting, a boom of the tower crane lifts goods, pulling force received by the boom is increased, a counterweight block is additionally installed in the opposite direction of the boom in order to ensure stability of the boom, and when the pulling force received by the boom is increased, redundant pulling force needs to be borne by the rigid strength of the structure of the tower crane, so that backward tilting risk is easily generated. Therefore, it is necessary to provide a device for preventing a tower crane from tilting backwards to solve the above problems.
Disclosure of Invention
The invention aims to provide a back-tilting prevention device of a tower crane, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a tower crane backward-tilting prevention device comprises a hoisting assembly, an adjusting assembly, a driving assembly and a monitoring assembly, wherein the adjusting assembly is arranged on one side of the hoisting assembly, the driving assembly is arranged at one end of the adjusting assembly, and the monitoring assembly is arranged above the hoisting assembly;
the hoisting assembly comprises an installation seat, the middle part of the upper surface of the installation seat is fixedly connected with a fixed seat, one end of the upper surface of the fixed seat is fixedly connected with two fixed plates which are symmetrically distributed, and the middle part of the inner side of each fixed plate is movably connected with a suspension arm through a pin shaft;
the adjusting assembly comprises an installation frame, one end of the installation frame is fixedly connected with the middle part of one side of the fixed seat, and the section of the installation frame is of an L-shaped structure;
the driving assembly comprises two symmetrically distributed supports, the supports are arranged in an L-shaped structure, and the bottom ends of the supports are fixedly connected with one end of the upper surface of the mounting frame;
the monitoring assembly comprises two movable arms which are symmetrically distributed, one end of each movable arm is movably connected with a connecting lug through a pin shaft, and one end of each connecting lug is fixedly connected with one end of the upper surface of the suspension arm.
Preferably, the middle part of the upper surface of the fixing seat is fixedly connected with a fixing frame, the fixing frame is of a tower structure, the top end of the fixing frame is fixedly connected with a supporting seat, the middle part of the upper surface of the supporting seat is fixedly connected with a fixing lug, the middle parts of two sides of the fixing lug are fixedly connected with fixing columns, and two ends of each fixing column are movably connected with a reversing wheel through a bearing.
Preferably, the inside of installing frame is provided with two symmetric distribution's fly leaf, the fly leaf sets up to isosceles trapezoid structure, there are two symmetric distribution's movable wheel on the lateral surface top of fly leaf through bearing swing joint, there are two symmetric distribution's locating wheel in the lateral surface bottom of fly leaf through round pin axle swing joint, movable wheel, locating wheel laminate with the outside wall of installing frame respectively.
Preferably, all the four corners of the inner side surface of the movable plate are fixedly connected with connecting columns, the middle part of the inner side surface of the movable plate is fixedly connected with a connecting plate through bolts, and the bottom end of the connecting plate is fixedly connected with a movable balancing weight.
Preferably, the upper surface of installing frame is close to the fixed block of two symmetric distributions of one end fixedly connected with of fixing base, there is the movable rod medial surface middle part of fixed block through bearing swing joint, the driven sprocket of two symmetric distributions of outside fixedly connected with of movable rod, the one end fixedly connected with fixed balancing weight of fixing base is kept away from to the installing frame lower surface.
Preferably, the middle part of the inner side surface of the support is movably connected with a transmission shaft through a bearing, the middle part of the transmission shaft is fixedly connected with a worm wheel, two sides of the worm wheel are respectively provided with a transmission chain wheel, the transmission chain wheels are fixedly connected with the transmission shaft, and the transmission chain wheels are in transmission connection with the driven chain wheels through transmission chains.
Preferably, the middle part of the connecting column is fixedly connected with the transmission chain, the middle part of one end of the lower surface of the mounting frame, which is far away from the fixing seat, is fixedly connected with a lifting motor, an output shaft of the lifting motor is fixedly connected with a worm, and the worm is meshed with the worm wheel.
Preferably, the one end fixedly connected with locating frame of fixing base is kept away from to the upper surface of installing frame, the locating frame sets up to "L" shape structure, the top of worm passes through the top inner wall swing joint of bearing and locating frame, the drive gear of two symmetric distributions of middle part fixedly connected with of transmission shaft.
Preferably, the upper surface one end fixedly connected with of support extends the board, there is the bull stick on the medial surface top of extending the board through bearing swing joint, two symmetric distributions's of middle part fixedly connected with drive gear of bull stick, drive gear meshes with drive gear mutually, the top of support is run through and is seted up logical groove, bull stick and logical groove through connection, the equal fixedly connected with wind-up roll in both ends of bull stick, the outside of wind-up roll is provided with the steel cable, the upper surface middle part of davit and the one end fixed connection of steel cable, reversing wheel and steel cable looks adaptation.
Preferably, the bottom of digging arm is provided with the carriage, the carriage passes through the upper surface middle part fixed connection of bolt and fixing base, the spout has all been run through at the both sides middle part of carriage, the medial surface bottom fixedly connected with slide bar of digging arm, slide bar and spout through connection, there is the sliding seat at the middle part of slide bar through round pin axle swing joint, the sliding seat sets up to "U" shape structure, the lateral surface middle part fixedly connected with monitoring alarm of sliding seat, the monitoring alarm comprises displacement sensor, controller and alarm, the equal fixedly connected with reset spring in the lateral surface both ends of sliding seat, reset spring's one end and the inside wall one end fixed connection of carriage.
The invention has the technical effects and advantages that:
1. according to the invention, the hoisting assembly is arranged, the hoisting arm in the hoisting assembly can realize hoisting work, the adjusting assembly is arranged on one side of the hoisting assembly, the movable plate capable of sliding is arranged in the adjusting assembly, the movable balancing weight is arranged below the movable plate, when the hoisting arm hoists goods, the angle of the hoisting arm changes, and the movable balancing weight is driven by the movable plate to move, so that the lever force arms formed by the movable balancing weight and the hoisting arm are equal, the acting force on the hoisting arm is kept balanced, and the risk of backward tilting of the tower crane is reduced;
2. according to the invention, the driving assembly is arranged and comprises the winding roller and the driving chain wheel, the winding roller can wind the steel cable, so that the angle of the suspension arm can be adjusted, the driving chain wheel can drive the movable plate to slide through the driving chain, so that the movable balancing weight can be adjusted, the driving chain wheel and the winding roller are in transmission connection through the driving gear and the transmission gear, and the gear ratio exists between the driving gear and the transmission gear, so that the driving gear and the transmission gear can play a role in variable speed transmission, the device can adjust the position of the movable balancing weight while performing traction adjustment on the suspension arm, and further the anti-backward tilting effect of the tower crane in the hoisting process is ensured;
3. according to the invention, the monitoring component is arranged, so that the monitoring component can monitor the movement angle of the suspension arm, the backward tilting of the tower crane caused by overlarge movement amplitude of the suspension arm due to the error operation of an operator can be avoided, and the backward tilting prevention effect of the device on the tower crane is further improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the positional relationship of the lifting assembly and the adjustment assembly of the present invention.
Fig. 3 is a schematic structural diagram of the adjusting assembly of the present invention.
Fig. 4 is a schematic diagram of the movable plate structure of the present invention.
Fig. 5 is a schematic view of the construction of the driven sprocket of the present invention.
Fig. 6 is a schematic structural diagram of a driving assembly according to the present invention.
Fig. 7 is a schematic view of the structure of the rotating rod of the present invention.
Fig. 8 is a schematic structural view of a transmission shaft according to the present invention.
Fig. 9 is a schematic view of the structure of the support of the present invention.
Fig. 10 is a schematic structural view of the support frame of the present invention.
FIG. 11 is a schematic view of a monitoring assembly according to the present invention.
Fig. 12 is a schematic view of the fixing frame of the present invention.
In the figure: 1. a hoisting assembly; 2. an adjustment assembly; 3. a drive assembly; 4. a monitoring component; 101. a mounting seat; 102. a fixed seat; 103. a fixing plate; 104. a suspension arm; 105. a fixed mount; 106. a supporting seat; 107. fixing the ear; 108. fixing a column; 109. a reversing wheel; 201. installing a frame; 202. a movable plate; 203. a movable wheel; 204. positioning wheels; 205. connecting columns; 206. a connecting plate; 207. a movable balancing weight; 208. a fixed block; 209. a movable rod; 210. a driven sprocket; 211. fixing a balancing weight; 301. a support; 302. a drive shaft; 303. a worm gear; 304. a drive sprocket; 305. a hoisting motor; 306. a worm; 307. a positioning frame; 308. a drive gear; 309. an extension plate; 310. a rotating rod; 311. a transmission gear; 312. a through groove; 313. a wind-up roll; 401. a movable arm; 402. connecting lugs; 403. a support frame; 404. a chute; 405. a slide bar; 406. a movable seat; 407. monitoring an alarm; 408. a return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a tower crane backward-tilting prevention device as shown in figures 1 to 12, which comprises a hoisting component 1, an adjusting component 2, a driving component 3 and a monitoring component 4, wherein the adjusting component 2 is arranged on one side of the hoisting component 1, the driving component 3 is arranged at one end of the adjusting component 2, and the monitoring component 4 is arranged above the hoisting component 1;
the hoisting assembly 1 comprises a mounting seat 101, a fixed seat 102 is fixedly connected to the middle of the upper surface of the mounting seat 101, two fixing plates 103 which are symmetrically distributed are fixedly connected to one end of the upper surface of the fixed seat 102, a suspension arm 104 is movably connected to the middle of the inner side of each fixing plate 103 through a pin shaft, a fixed frame 105 is fixedly connected to the middle of the upper surface of the fixed seat 102, the fixed frame 105 is arranged in a tower structure, a supporting seat 106 is fixedly connected to the top end of the fixed frame 105, a fixing lug 107 is fixedly connected to the middle of the upper surface of the supporting seat 106, fixing columns 108 are fixedly connected to the middle parts of two sides of each fixing lug 107, and two ends of each fixing column 108 are movably connected with a reversing wheel 109 through a bearing;
the adjusting assembly 2 comprises an installation frame 201, one end of the installation frame 201 is fixedly connected with the middle of one side of the fixed seat 102, the section of the installation frame 201 is set to be in an L-shaped structure, two movable plates 202 which are symmetrically distributed are arranged inside the installation frame 201, the movable plates 202 are set to be in an isosceles trapezoid structure, the top ends of the outer side surfaces of the movable plates 202 are movably connected with two movable wheels 203 which are symmetrically distributed through bearings, the bottom ends of the outer side surfaces of the movable plates 202 are movably connected with two positioning wheels 204 which are symmetrically distributed through pin shafts, the movable wheels 203 and the positioning wheels 204 are respectively attached to the outer side wall of the installation frame 201, and the positioning wheels 204 are matched with the movable wheels 203, so that the moving stability of the movable plates 202 can be ensured, and meanwhile, the connecting stability between the movable counter weight 207 and the installation frame 201 can also be ensured;
specifically, the four corners of the inner side of the movable plate 202 are fixedly connected with connecting columns 205, the middle part of the inner side of the movable plate 202 is fixedly connected with a connecting plate 206 through bolts, the bottom end of the connecting plate 206 is fixedly connected with a movable balancing weight 207, the fixed seat 102 and the suspension arm 104 form a lever structure, the fixed seat 102 serves as a lever fulcrum, when the tension force applied to the suspension arm 104 is increased, the movable balancing weight 207 moves outwards, the force arm of the lever position of the movable balancing weight 207 is increased, the lever structure keeps balance under the action of the movable balancing weight 207 and the suspension arm 104, the whole device keeps balance, and the backward tilting of the tower crane caused by unbalanced stress on the top can be effectively avoided;
more specifically, one end of the upper surface of the mounting frame 201, which is close to the fixed seat 102, is fixedly connected with two fixed blocks 208 which are symmetrically distributed, the middle part of the inner side surface of each fixed block 208 is movably connected with a movable rod 209 through a bearing, the outer side of each movable rod 209 is fixedly connected with two driven sprockets 210 which are symmetrically distributed, one end of the lower surface of the mounting frame 201, which is far away from the fixed seat 102, is fixedly connected with a fixed counterweight 211, and the arrangement of the fixed counterweight 211 can ensure the stress balance of the device in a standing state;
the driving assembly 3 comprises two symmetrically distributed supports 301, the supports 301 are arranged in an L-shaped structure, the bottom ends of the supports 301 are fixedly connected with one end of the upper surface of the mounting frame 201, the middle part of the inner side surface of each support 301 is movably connected with a transmission shaft 302 through a bearing, the middle part of each transmission shaft 302 is fixedly connected with a worm wheel 303, two sides of each worm wheel 303 are respectively provided with a transmission chain wheel 304, the transmission chain wheels 304 are fixedly connected with the transmission shafts 302, the transmission chain wheels 304 are connected with the driven chain wheels 210 through transmission chain transmission, the transmission shafts 302 drive the transmission chain wheels 304 to rotate, the transmission chain wheels 304 drive the transmission chains to move, the transmission chains drive the connecting columns 205 to move, the connecting columns 205 drive the movable plates 202 to move, the movable plates 202 horizontally slide in the mounting frame 201, the movable plates 202 drive the movable counter weights 207 to move, the positions between the movable counter weights 207 and the fixed seats 102 are changed, and the force arms of the levers are changed;
specifically, the middle part of the connecting column 205 is fixedly connected with a transmission chain, the middle part of one end of the lower surface of the mounting frame 201, which is far away from the fixed seat 102, is fixedly connected with a lifting motor 305, an output shaft of the lifting motor 305 is fixedly connected with a worm 306, the worm 306 is meshed with a worm wheel 303, one end of the upper surface of the mounting frame 201, which is far away from the fixed seat 102, is fixedly connected with a positioning frame 307, the positioning frame 307 is set to be in an L-shaped structure, the top end of the worm 306 is movably connected with the inner wall of the top end of the positioning frame 307 through a bearing, the middle part of the transmission shaft 302 is fixedly connected with two symmetrically distributed drive gears 308, one end of the upper surface of the support 301 is fixedly connected with an extension plate 309, the top end of the inner side surface of the extension plate 309 is movably connected with a rotating rod 310 through a bearing, the middle part of the rotating rod 310 is fixedly connected with two symmetrically distributed drive gears 311, and the drive gears 311 are meshed with the drive gears 308;
more specifically, a gear ratio exists between the driving gear 308 and the transmission gear 311, so that variable-speed transmission can be realized between the driving gear 308 and the transmission gear 311, and further the movable balance weight 207 can correspondingly slide in the movement process of the suspension arm 104, so as to ensure the stress balance of the device, a through groove 312 is formed in the top end of the support 301 in a penetrating manner, the rotating rod 310 is connected with the through groove 312 in a penetrating manner, two ends of the rotating rod 310 are fixedly connected with a winding roller 313, a steel cable is arranged on the outer side of the winding roller 313, the middle part of the upper surface of the suspension arm 104 is fixedly connected with one end of the steel cable, and the reversing wheel 109 is matched with the steel cable;
moreover, the lifting motor 305 drives the worm 306 to rotate, the worm 306 drives the worm wheel 303 to rotate, the worm wheel 303 drives the transmission shaft 302 to rotate, the transmission shaft 302 drives the driving gear 308 to rotate, the driving gear 308 drives the transmission gear 311 to rotate, the transmission gear 311 drives the rotating rod 310 to rotate, the rotating rod 310 drives the winding roller 313 to rotate, the winding roller 313 pulls the steel cable to move, and the steel cable can pull the suspension arm 104, so that the suspension arm 104 rotates around the pin shaft;
the monitoring assembly 4 comprises two movable arms 401 which are symmetrically distributed, one end of each movable arm 401 is movably connected with a connecting lug 402 through a pin shaft, one end of each connecting lug 402 is fixedly connected with one end of the upper surface of the suspension arm 104, a supporting frame 403 is arranged at the bottom end of each movable arm 401, each supporting frame 403 is fixedly connected with the middle of the upper surface of the corresponding fixed seat 102 through a bolt, sliding grooves 404 are formed in the middle of two sides of each supporting frame 403 in a penetrating mode, a sliding rod 405 is fixedly connected to the bottom end of the inner side surface of each movable arm 401, each sliding rod 405 is connected with each sliding groove 404 in a penetrating mode, a movable seat 406 is movably connected to the middle of each sliding rod 405 through a pin shaft, each movable seat 406 is of a U-shaped structure, a monitoring alarm 407 is fixedly connected to the middle of the outer side surface of each movable seat 406, and each monitoring alarm 407 comprises a displacement sensor, a controller and an alarm;
specifically, in the movement process of the suspension arm 104, the suspension arm 104 drives the connecting lug 402 to move, the connecting lug 402 drives the movable arm 401 to move, the movable arm 401 drives the sliding rod 405 to move, the sliding rod 405 slides in the sliding groove 404 to convert the rotation of the suspension arm 104 into horizontal movement, the sliding rod 405 drives the movable seat 406 to horizontally move, the movable seat 406 drives the displacement sensor in the monitoring alarm 407 to move, and the monitoring alarm 407 can monitor the movement amount of the displacement sensor;
more specifically, when the range of motion of davit 104 is too big, displacement sensor movement distance is longer, and the controller in monitoring alarm 407 sends the instruction to the alarm this moment, and the alarm sends out the police dispatch newspaper, warns operating personnel and reminds, and simultaneously, the alarm can also be connected with the tower crane controller, realizes the scram to the tower crane, and the equal fixedly connected with reset spring 408 in lateral surface both ends of sliding seat 406, reset spring 408's one end and the inside wall one end fixed connection of carriage 403.
The working principle of the invention is as follows:
when the device is used, the hoisting component 1 is fixed at the top of the tower crane, the hoisting component 1 can rotate at the top of the tower crane, a lifting hook is additionally arranged on a suspension arm 104 in the hoisting component 1, the suspension arm 104 and the lifting hook are matched to realize the lifting work, when the suspension arm 104 is used for the lifting work, the angle of the suspension arm 104 is changed, the pulling force applied to the suspension arm 104 under the action of goods is changed, the movable counter weight 207 in the adjusting component 2 slides horizontally, the lever structure is formed by the movable counter weight 207, the fixed seat 102 and the suspension arm 104, the fixed seat 102 is used as a lever fulcrum, when the pulling force applied to the suspension arm 104 is increased, the movable counter weight 207 moves outwards, the moment arm of force of the lever position of the movable counter weight 207 is increased, the lever structure is kept balanced under the action of the movable counter weight 207 and the suspension arm 104, the device is kept balanced as a whole, the situation that the tower crane tilts backwards due to unbalanced top stress can be effectively avoided, meanwhile, the monitoring component 4 can monitor the movement amplitude of the suspension arm 104, so as to avoid the situation that the inclination angle is too large due to the operation of an operator, and further monitor the protection device for the lifting of the tower crane;
when the device is used for hoisting, a hoisting motor 305 drives a worm 306 to rotate, the worm 306 drives a worm wheel 303 to rotate, the worm wheel 303 drives a transmission shaft 302 to rotate, the transmission shaft 302 drives a driving gear 308 to rotate, the driving gear 308 drives a transmission gear 311 to rotate, the transmission gear 311 drives a rotating rod 310 to rotate, the rotating rod 310 drives a winding roller 313 to rotate, the winding roller 313 pulls a steel cable to move, the steel cable can pull a suspension arm 104, the suspension arm 104 rotates around a pin shaft, the angle of the suspension arm 104 is further adjusted, and then goods can be hoisted, meanwhile, the transmission shaft 302 drives a transmission chain wheel 304 to rotate, the transmission chain wheel 304 drives a transmission chain to move, the transmission chain drives a connecting column 205 to move, the connecting column 205 drives a movable plate 202 to move, the movable plate 202 horizontally slides in the mounting frame 201, the movable plate 202 drives a movable counterweight block 207 to move, the position between the movable counterweight block 207 and a fixed seat 102 is changed, so that the moment arm of a lever is changed, thereby keeping stress balance in the hoisting process of the device, and further realizing backward tilting prevention of a crane;
during the movement of the suspension arm 104, the suspension arm 104 drives the connecting lug 402 to move, the connecting lug 402 drives the movable arm 401 to move, the movable arm 401 drives the sliding rod 405 to move, the sliding rod 405 slides in the sliding groove 404 to convert the rotation of the suspension arm 104 into horizontal movement, the sliding rod 405 drives the movable seat 406 to move horizontally, the movable seat 406 drives the displacement sensor in the monitoring alarm 407 to move, the monitoring alarm 407 can monitor the movement amount of the displacement sensor, when the movement amplitude of the suspension arm 104 is too large, the movement distance of the displacement sensor is longer, at the moment, a controller in the monitoring alarm 407 sends an instruction to the alarm, the alarm sends out an alarm to warn an operator, and meanwhile, the alarm can be connected with a controller of the tower crane to realize emergency stop of the tower crane.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (2)
1. The anti-backward-tilting device of the tower crane is characterized by comprising a hoisting assembly (1), an adjusting assembly (2), a driving assembly (3) and a monitoring assembly (4), wherein the adjusting assembly (2) is arranged on one side of the hoisting assembly (1), the driving assembly (3) is arranged at one end of the adjusting assembly (2), and the monitoring assembly (4) is arranged above the hoisting assembly (1);
the hoisting assembly (1) comprises an installation seat (101), the middle part of the upper surface of the installation seat (101) is fixedly connected with a fixed seat (102), one end of the upper surface of the fixed seat (102) is fixedly connected with two symmetrically distributed fixed plates (103), and the middle part of the inner side of each fixed plate (103) is movably connected with a suspension arm (104) through a pin shaft;
the adjusting assembly (2) comprises an installation frame (201), one end of the installation frame (201) is fixedly connected with the middle of one side of the fixed seat (102), and the cross section of the installation frame (201) is of an L-shaped structure;
the driving assembly (3) comprises two symmetrically distributed supports (301), the supports (301) are arranged to be L-shaped structures, and the bottom ends of the supports (301) are fixedly connected with one end of the upper surface of the mounting frame (201);
the monitoring assembly (4) comprises two movable arms (401) which are symmetrically distributed, one end of each movable arm (401) is movably connected with a connecting lug (402) through a pin shaft, and one end of each connecting lug (402) is fixedly connected with one end of the upper surface of the suspension arm (104);
the middle part of the upper surface of the fixed seat (102) is fixedly connected with a fixed frame (105), the fixed frame (105) is arranged to be a tower structure, the top end of the fixed frame (105) is fixedly connected with a supporting seat (106), the middle part of the upper surface of the supporting seat (106) is fixedly connected with a fixed lug (107), the middle parts of two sides of the fixed lug (107) are fixedly connected with a fixed column (108), and two ends of the fixed column (108) are movably connected with a reversing wheel (109) through bearings;
two movable plates (202) which are symmetrically distributed are arranged inside the mounting frame (201), the movable plates (202) are arranged in an isosceles trapezoid structure, the top end of the outer side surface of each movable plate (202) is movably connected with two movable wheels (203) which are symmetrically distributed through a bearing, the bottom end of the outer side surface of each movable plate (202) is movably connected with two positioning wheels (204) which are symmetrically distributed through pin shafts, and the movable wheels (203) and the positioning wheels (204) are respectively attached to the outer side wall of the mounting frame (201);
four corners of the inner side of the movable plate (202) are fixedly connected with connecting columns (205), the middle of the inner side of the movable plate (202) is fixedly connected with a connecting plate (206) through bolts, and the bottom end of the connecting plate (206) is fixedly connected with a movable balancing weight (207);
one end, close to the fixed seat (102), of the upper surface of the mounting frame (201) is fixedly connected with two symmetrically distributed fixed blocks (208), the middle of the inner side surface of each fixed block (208) is movably connected with a movable rod (209) through a bearing, the outer side of each movable rod (209) is fixedly connected with two symmetrically distributed driven sprockets (210), and one end, far away from the fixed seat (102), of the lower surface of the mounting frame (201) is fixedly connected with a fixed balancing weight (211);
the middle part of the inner side surface of the support (301) is movably connected with a transmission shaft (302) through a bearing, the middle part of the transmission shaft (302) is fixedly connected with a worm wheel (303), both sides of the worm wheel (303) are provided with transmission chain wheels (304), the transmission chain wheels (304) are fixedly connected with the transmission shaft (302), and the transmission chain wheels (304) are in transmission connection with the driven chain wheels (210) through transmission chains;
the middle part of the connecting column (205) is fixedly connected with a transmission chain, the middle part of one end of the lower surface of the mounting frame (201), which is far away from the fixed seat (102), is fixedly connected with a lifting motor (305), an output shaft of the lifting motor (305) is fixedly connected with a worm (306), and the worm (306) is meshed with a worm wheel (303);
one end, far away from the fixed seat (102), of the upper surface of the mounting frame (201) is fixedly connected with a positioning frame (307), the positioning frame (307) is of an L-shaped structure, the top end of the worm (306) is movably connected with the inner wall of the top end of the positioning frame (307) through a bearing, and the middle of the transmission shaft (302) is fixedly connected with two symmetrically distributed driving gears (308);
the upper surface one end fixedly connected with extension board (309) of support (301), the medial surface top of extension board (309) has bull stick (310) through bearing swing joint, the middle part fixedly connected with drive gear (311) of two symmetric distributions of bull stick (310), drive gear (311) mesh with drive gear (308) mutually, logical groove (312) have been seted up in the top of support (301) run through, bull stick (310) and logical groove (312) through connection, the equal fixedly connected with wind-up roll (313) in both ends of bull stick (310), the outside of wind-up roll (313) is provided with the steel cable, the upper surface middle part of davit (104) and the one end fixed connection of steel cable, reverse wheel (109) and steel cable looks adaptation.
2. The anti-back-tipping device of the tower crane according to claim 1, wherein: the bottom of digging arm (401) is provided with carriage (403), carriage (403) pass through the upper surface middle part fixed connection of bolt and fixing base (102), the both sides middle part of carriage (403) all runs through and has seted up spout (404), the medial surface bottom fixedly connected with slide bar (405) of digging arm (401), slide bar (405) and spout (404) through connection, the middle part of slide bar (405) has movable seat (406) through round pin axle swing joint, movable seat (406) set up to "U" shape structure, the lateral surface middle part fixedly connected with monitoring alarm (407) of movable seat (406), monitoring alarm (407) comprise displacement sensor, controller and alarm, the equal fixedly connected with reset spring (408) in lateral surface both ends of movable seat (406), the one end of reset spring (408) and the one end fixed connection of the inside wall of carriage (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210939704.XA CN115057378B (en) | 2022-08-05 | 2022-08-05 | Backward-tipping prevention device of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210939704.XA CN115057378B (en) | 2022-08-05 | 2022-08-05 | Backward-tipping prevention device of tower crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115057378A CN115057378A (en) | 2022-09-16 |
| CN115057378B true CN115057378B (en) | 2022-11-04 |
Family
ID=83208483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210939704.XA Active CN115057378B (en) | 2022-08-05 | 2022-08-05 | Backward-tipping prevention device of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115057378B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117163848B (en) * | 2023-10-31 | 2024-01-26 | 江苏格雷特起重机械有限公司 | Anti-backward tilting device of crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113112A (en) * | 1976-08-13 | 1978-09-12 | Ray Louis F | Constant balance crane |
| CN2186741Y (en) * | 1993-01-01 | 1995-01-04 | 王克 | Hoisting machine counterweight automatic ballancing apparatus |
| CN201245408Y (en) * | 2007-11-19 | 2009-05-27 | 何淑娟 | Anti-tipping monitor for tower crane |
| CN201268560Y (en) * | 2008-09-27 | 2009-07-08 | 廊坊凯博建设机械科技有限公司 | Counterweight automatic synchronization mobile device for tower crane |
| CN102398868A (en) * | 2011-11-21 | 2012-04-04 | 江麓机电科技有限公司 | Intelligent tower crane monitoring system |
| CN111847279A (en) * | 2020-07-29 | 2020-10-30 | 抚顺永茂建筑机械有限公司 | Movable arm tower crane steel wire rope driving type movable counterweight device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2691449A1 (en) * | 1992-05-22 | 1993-11-26 | Poinsard Robert | Moving counterweight for large crane - achieves equilibrium by rolling heavy cylinder on rails on rear boom to position calculated by computer for perfect balance |
| CN101357741A (en) * | 2008-09-27 | 2009-02-04 | 廊坊凯博建设机械科技有限公司 | Movable arm variation-amplitude column crane counterweight automatic synchronization travel mechanism |
| CN201647849U (en) * | 2010-02-09 | 2010-11-24 | 孙承年 | Automatic balancing tower type crane |
| CN113003445A (en) * | 2021-04-28 | 2021-06-22 | 江苏三炬顺重工有限公司 | Backward-tilting prevention structure of movable arm tower crane |
-
2022
- 2022-08-05 CN CN202210939704.XA patent/CN115057378B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113112A (en) * | 1976-08-13 | 1978-09-12 | Ray Louis F | Constant balance crane |
| CN2186741Y (en) * | 1993-01-01 | 1995-01-04 | 王克 | Hoisting machine counterweight automatic ballancing apparatus |
| CN201245408Y (en) * | 2007-11-19 | 2009-05-27 | 何淑娟 | Anti-tipping monitor for tower crane |
| CN201268560Y (en) * | 2008-09-27 | 2009-07-08 | 廊坊凯博建设机械科技有限公司 | Counterweight automatic synchronization mobile device for tower crane |
| CN102398868A (en) * | 2011-11-21 | 2012-04-04 | 江麓机电科技有限公司 | Intelligent tower crane monitoring system |
| CN111847279A (en) * | 2020-07-29 | 2020-10-30 | 抚顺永茂建筑机械有限公司 | Movable arm tower crane steel wire rope driving type movable counterweight device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115057378A (en) | 2022-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10183848B2 (en) | Height adjustment mechanism for an auxiliary member on a crane | |
| CN102001593B (en) | Crane | |
| CN101343021B (en) | Large-scale full-turning offshore platform crane | |
| CN115057378B (en) | Backward-tipping prevention device of tower crane | |
| CN115676644B (en) | Anti-swing outdoor portal crane | |
| CN201261694Y (en) | Large-scale full-turning offshore platform crane | |
| CN214879790U (en) | Movable arm tower crane | |
| CN107973226A (en) | A kind of high hoisting machinery of stability | |
| CN202449769U (en) | Superlift device for liftable self-propelled crawler and crane | |
| CN111824972B (en) | Crane with a movable crane | |
| CN109928315A (en) | A kind of Construction of Steel Structure boom hoisting | |
| CN111847279A (en) | Movable arm tower crane steel wire rope driving type movable counterweight device | |
| CN218560944U (en) | Variable counterweight structure suitable for movable arm tower crane | |
| CN114057104B (en) | Crane lifting adjusting device | |
| CN103253602A (en) | Liftable self-propelled tracked vehicle superlift device and crane | |
| CN2154250Y (en) | Mini-tower hoist | |
| CN201415917Y (en) | Garbage sling van with single winding drum | |
| RU2305064C1 (en) | Jib crane | |
| CN217297075U (en) | Double-crane arm frame bridge crane | |
| CN109292649A (en) | A kind of automatic crane of modularization that can quickly assemble | |
| CN220886797U (en) | Tower crane | |
| CN115159371A (en) | Intelligent movable counterweight device for crane | |
| CN220787868U (en) | Diagonally-arranged double-rotation door hanger | |
| CN220642493U (en) | Hanging basket structure | |
| CN218619951U (en) | Lifting device for crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |