CN111675115A - Cantilever upright post supporting auxiliary fixing mechanism of portal crane - Google Patents
Cantilever upright post supporting auxiliary fixing mechanism of portal crane Download PDFInfo
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- CN111675115A CN111675115A CN202010433739.7A CN202010433739A CN111675115A CN 111675115 A CN111675115 A CN 111675115A CN 202010433739 A CN202010433739 A CN 202010433739A CN 111675115 A CN111675115 A CN 111675115A
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- cantilever
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- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Classifications
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- 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
- B66C23/16—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 with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
-
- 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
- B66C23/04—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 with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
-
- 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
-
- 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
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a cantilever upright post supporting auxiliary fixing mechanism of a portal crane, which comprises a crane main body and a servo motor, wherein a main arm is hinged and installed on the right side of the crane main body, a driving mechanism is installed inside the crane main body, an adjusting base is arranged inside the driving mechanism and is hinged and installed inside the crane main body, a supporting frame is fixedly installed at the top of the adjusting base, rotating shafts are symmetrically inserted into the upper side and the lower side of the inside of the supporting frame, and driving gears are symmetrically fixed on the outer walls of the front side and the rear side of each rotating shaft. According to the auxiliary support device, the auxiliary support mechanism is connected between the cantilever main body and the main arm, and the triangular stable support is formed between the auxiliary support mechanism and the main arm and between the auxiliary support mechanism and the cantilever main body, so that the auxiliary support device is more firm and stable between the cantilever main body and the main arm during operation.
Description
Technical Field
The invention relates to the related technical field of cranes, in particular to a cantilever upright post support auxiliary fixing mechanism of a gantry crane.
Background
The portal crane is an arm frame type crane of which a bridge frame is supported on a ground track or a foundation through supporting legs at two sides, can run along the ground track, so that the portal crane is convenient to move, and can directly pass through a railway vehicle or other ground vehicles due to a larger passing space below the bridge frame, so that goods can be loaded and transported conveniently, and the portal crane is widely applied to various wharfs or open storage yards;
the portal crane has large single grabbing amount which can reach dozens or even hundreds of tons, and in order to ensure the structural stability of the crane, the cantilever position of the portal crane is fixed by an upper auxiliary pull beam, and the main arm and the cantilever are fixed without auxiliary support, so that the lower support strength of the cantilever is not comprehensive when the portal crane is used;
in addition, the sling installed in the existing portal crane cantilever lacks fixed clamping between the sling and the cantilever, so that external wind blows, the sling and the cantilever are easy to rub, the sling is subjected to large abrasion, and the service life of the sling is influenced.
Disclosure of Invention
The invention aims to provide an auxiliary fixing mechanism for supporting a cantilever upright post of a portal crane, which aims to solve the problems that when the existing portal crane provided in the background art is used, the cantilever and a main arm are not fixed in an auxiliary mode, so that the supporting strength of the cantilever is weakened, and when the cantilever is used, the suspension cable is not fixed in a clamping mode, so that the suspension cable is easy to shake and rub under the blowing of wind power, and the service life of the suspension cable is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a cantilever upright post supporting auxiliary fixing mechanism of a portal crane comprises a crane body and a servo motor, wherein a main arm is hinged to the right side of the crane body, a driving mechanism is installed inside the crane body, the driving mechanism comprises an adjusting base, the adjusting base is hinged to the inside of the crane body, a supporting frame is fixedly installed at the top of the adjusting base, rotating shafts are symmetrically inserted into the supporting frame from top to bottom, driving gears are symmetrically fixed on the outer walls of the front side and the rear side of each rotating shaft, a worm wheel is fixedly installed on the outer side of the middle position of each rotating shaft, a driving transverse rod is clamped between the upper rotating shaft and the lower rotating shaft, a driving rod is inserted into the middle position of the driving transverse rod, a worm is sleeved on the outer side of the driving rod, retainers are sleeved on the left end and the right end of the worm, and a motor platform, a servo motor is fixedly arranged above the motor platform, buffering elements are uniformly and fixedly arranged at the left end and the right end of the bottom of the adjusting base, a transmission mechanism is arranged at the right side of the driving mechanism, the transmission mechanism comprises a transmission shaft, the transmission shaft is hinged to the outer wall of the top of the main arm through a support, a first universal joint is fixedly arranged at the lower end of the transmission shaft, a second universal joint is fixedly arranged at the top end of the transmission shaft, a shaft rod is fixedly welded at the other end of the second universal joint, a first bevel gear is fixedly welded at the other end of the shaft rod, an auxiliary supporting mechanism is arranged above the right side of the transmission mechanism, a supporting sleeve is arranged in the auxiliary supporting mechanism, a supporting screw rod is inserted in the middle of the supporting sleeve, a second bevel gear is hinged at the left end of the supporting sleeve, and a second bevel gear is, the cantilever comprises a main arm, a cantilever body and a clamping frame, wherein the right end of the main arm is hinged with the cantilever body, a buffer mechanism is arranged at the middle position of the cantilever body, the inside of the buffer mechanism comprises a through groove, the through groove is arranged at the middle position of the cantilever body, a hinged block is embedded at the middle position of the through groove, first springs are symmetrically and fixedly arranged at the upper end and the lower end of the inside of the through groove, a bracket is fixedly arranged at the other end of each group of the first springs, a clamping mechanism is arranged below the cantilever body, the inside of the clamping mechanism comprises a clamping plate, the clamping plate is hinged and arranged at the bottom of the cantilever body, the bottom of the clamping plate is welded and communicated with a connecting cylinder, the lower end of the connecting cylinder is fixedly provided with the clamping ring, slots are uniformly arranged on the inner wall of the clamping ring, inserting rods are inserted into the inside of each group of the slots, and a second spring is sleeved on the outer side of the inserted rod.
Preferably, the upper and lower bilateral symmetry of drive horizontal pole is fixed with the rack, and the rack corresponds the block between two sets of drive gears that correspond from top to bottom, the rack tooth of assembly and the tooth looks adaptation of the assembly in the drive gear outside on the drive horizontal pole, drive gear passes through the meshing of tooth and is connected with the drive horizontal pole meshing rotation.
Preferably, the driving rod is transversely inserted in the middle of the driving cross rod and is rotatably connected with the driving cross rod, a square groove is formed in the middle of the worm, the driving rod is inserted in the square groove formed in the middle of the worm, the outside size of the driving rod is matched with the inside size of the square groove formed in the middle of the worm, the worm is connected with the driving rod in a left-right sliding mode through the square groove, one end of the driving rod is fixedly installed on a rotating output shaft of the servo motor, and the other end of the driving rod is fixedly installed on the first universal joint.
Preferably, the retainer is rotationally connected with the driving rod, the retainer is rotationally connected with the rotating shaft, teeth assembled on the outer side of the worm are matched with teeth assembled on the outer side of the worm wheel, and the worm is rotationally connected with the worm wheel in a meshing manner through meshing of the teeth.
Preferably, the bottom of the motor platform is fixedly welded with a supporting block, a chute is formed in the middle of the top of the adjusting base, the supporting block fixed at the bottom of the motor platform is inserted into the chute formed in the top of the adjusting base, the outside size of the bottom of the supporting block below the motor platform is matched with the inside size of the chute formed in the top of the adjusting base, the motor platform is connected with the adjusting base in a left-right sliding mode through the matching of the supporting block and the chute, the other end of the buffer element is fixedly installed at the bottom of the crane body, and the adjusting base is connected with the crane body through the buffer element in an elastic rotating mode.
Preferably, the middle position of the shaft lever is mounted on the outer wall above the main arm through a support, the shaft lever is connected with the main arm in a rotating mode, teeth assembled on the outer side of the first bevel gear are matched with teeth assembled on the outer side of the second bevel gear, and the first bevel gear is in meshing transmission connection with the second bevel gear through meshing of the teeth.
Preferably, the second bevel gear is rotatably connected with the support sleeve, the support screw penetrates through the second bevel gear and is inserted into the support sleeve, threads are uniformly assembled on the inner wall of the second bevel gear, the threads assembled on the outer wall of the support screw are matched with the threads assembled on the inner wall of the second bevel gear, and the support screw is rotatably connected with the threads of the second bevel gear through meshing of the threads.
Preferably, the outer wall of the hinged block is provided with a clamping groove, the clamping groove is clamped on the inner wall of the through groove, the clamping groove formed in the outer wall of the hinged block is matched with the inner wall of the through groove, the hinged block is connected with the through groove in a sliding mode through the clamping groove, and the hinged block is hinged to the hinged rod.
Preferably, the bracket is arc-shaped, the bracket is clamped in a clamping groove formed in the outer wall of the hinge block, and the bracket is elastically and telescopically connected with the through groove through a first spring.
Preferably, one end of the second spring is fixedly installed inside the slot, the other end of the second spring is fixedly installed on the clamping frame, the clamping frame is elastically and telescopically connected with the slot through the second spring, a groove is formed in the middle of the clamping frame, and the shape of the groove is arc-shaped.
Compared with the prior art, the invention has the beneficial effects that:
1. the driving rod drives the rotating shaft to rotate when rotating by the aid of the thread meshing drive between the worm and the worm wheel, the structure of the device is more stable during operation by means of the self-locking property of tooth meshing between the worm and the worm wheel, the driving cross rod moves stably and firmly between the rotating shafts by the aid of the meshing of the driving gear and the rack on the driving cross rod, and the stable safety of the device during operation is effectively guaranteed;
2. the auxiliary support mechanism is connected between the cantilever main body and the main arm, a triangular stable support is formed between the cantilever main body and the main arm by means of the internal support screw rod of the auxiliary support mechanism, and the auxiliary support is carried out between the main arm and the cantilever main body, so that the device is firmer and more stable between the cantilever main body and the main arm during operation;
3. the buffer mechanism is arranged in the cantilever main body, and the impact of the hinge block moving up and down in the through groove is effectively reduced by means of elastic buffering of the first spring in the buffer mechanism, so that the device can run more stably, and meanwhile, the impact force of the cantilever main body on the auxiliary supporting mechanism caused by sudden out-of-control when the device is damaged and fails is effectively weakened;
4. articulate the below at the cantilever main part through setting up the grip block, the during operation alternates the hoist cable in the grip block and the hoist cable is installed between each holding frame, through the elastic support of second spring to and the restriction of the middle circular arc draw-in groove of holding frame, make the hoist cable can effectually be supported fixedly, and be favorable to preventing that the hoist cable from wearing and tearing when the buffering is too big, be favorable to prolonging the life of hoist cable.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic sectional elevation view of the structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 1 at C according to the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 1 at D according to the present invention;
FIG. 6 is a schematic side sectional view of the driving mechanism of the present invention;
FIG. 7 is a schematic top view of the driving mechanism of the present invention;
FIG. 8 is a schematic top sectional view of a clamping collar of the present invention;
fig. 9 is a schematic front view of the structure of the present invention.
In the figure: 1. a crane body; 2. a main arm; 31. adjusting the base; 32. a support frame; 33. a rotating shaft; 34. a drive gear; 35. a worm gear; 36. a drive rail; 37. a drive rod; 38. a worm; 39. a holder; 310. a motor platform; 311. a servo motor; 312. a buffer element; 41. a drive shaft; 42. a first universal joint; 43. a second universal joint; 44. a shaft lever; 45. a first bevel gear; 51. a support sleeve; 52. a support screw; 53. a second bevel gear; 54. a hinged lever; 6. a cantilever body; 71. a through groove; 72. a hinged block; 73. a first spring; 74. a bracket; 81. a clamping plate; 82. a connecting cylinder; 83. a clamping collar; 84. a slot; 85. inserting a rod; 86. a clamping frame; 87. a second spring.
The specific implementation mode is as follows:
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.
Referring to fig. 1-9, an embodiment of the present invention is shown: a cantilever upright post supporting auxiliary fixing mechanism of a portal crane comprises a crane main body 1 and a servo motor 311, a main arm 2 is hinged and installed on the right side of the crane main body 1, a driving mechanism is installed inside the crane main body 1, the driving mechanism comprises an adjusting base 31, the adjusting base 31 is hinged and installed inside the crane main body 1, a supporting frame 32 is fixedly installed on the top of the adjusting base 31, rotating shafts 33 are symmetrically inserted into the upper side and the lower side of the inside of the supporting frame 32, driving gears 34 are symmetrically fixed on the outer walls of the front side and the rear side of each rotating shaft 33, a worm wheel 35 is fixedly installed on the outer side of the middle position of each rotating shaft 33, a driving cross rod 36 is clamped between the upper rotating shaft 33 and the lower rotating shaft 33, racks are symmetrically fixed on the upper side and the lower side of the driving cross rod 36, the racks are correspondingly clamped between the upper driving gears 34 and the lower driving, the driving gear 34 is meshed with the driving cross rod 36 through teeth to be rotatably connected, when the device works, racks assembled up and down through the driving cross rod 36 are respectively meshed with the driving gear 34 installed up and down, so that the driving gear 34 rotates, under the meshing effect of the teeth, the driving cross rod 36 moves between the driving gear 34, the lifting amplitude of the device is adjusted by controlling the left and right movement of the driving cross rod 36, and the device works more stably under the meshing effect of the teeth.
A driving rod 37 is inserted in the middle of the driving cross rod 36, the right end of the driving cross rod 36 is fixedly welded on the main arm 2, a worm 38 is sleeved outside the driving rod 37, retainers 39 are sleeved on the left end and the right end of the worm 38, the driving rod 37 is transversely inserted in the middle of the driving cross rod 36, the driving rod 37 is rotatably connected with the driving cross rod 36, a square groove is formed in the middle of the worm 38, the driving rod 37 is inserted in the square groove formed in the middle of the worm 38, the outside dimension of the driving rod 37 is matched with the inside dimension of the square groove formed in the middle of the worm 38, the worm 38 is slidably connected with the driving rod 37 left and right through the square groove, one end of the driving rod 37 is fixedly installed on the rotating output shaft of the servo motor 311, the other end of the driving rod 37 is fixedly installed on the first universal joint 42, and when the servo motor 311 is powered on, the driving, through the rotation of actuating lever 37, the worm 38 that the drive cover established in its outside rotates, carry out power take off to the device, be connected with the help of the square groove between worm 38 and the actuating lever 37 through setting up, make worm 38 can carry out the horizontal slip on actuating lever 37, and actuating lever 37 can not interrupt to the rotation output of worm 38, the effectual operating stability who ensures the device, articulate the front and back both ends outside at pivot 33 through the upper end that sets up holder 39, and the lower extreme centre gripping of holder 39 is in the left and right sides of worm 38, make pivot 33 position on the device when removing for drive horizontal pole 36, worm 38 can keep invariable with pivot 33 position, be favorable to guaranteeing the device job stabilization nature.
The left end of the driving cross rod 36 is fixedly welded with a motor platform 310, a servo motor 311 is fixedly installed above the motor platform 310, buffer elements 312 are uniformly and fixedly installed at the left end and the right end of the bottom of the adjusting base 31, supporting blocks are fixedly welded at the bottom of the motor platform 310, a sliding groove is formed in the middle position of the top of the adjusting base 31, the supporting blocks fixed at the bottom of the motor platform 310 are inserted into the sliding groove formed in the top of the adjusting base 31, the outer side size of the bottom of the supporting blocks below the motor platform 310 is matched with the inner size of the sliding groove formed in the top of the adjusting base 31, the motor platform 310 is in sliding connection with the adjusting base 31 left and right through the matching of the supporting blocks and the sliding groove, the other end of the buffer elements 312 is fixedly installed at the bottom of the crane main body 1, the adjusting base 31 is, drives the driving rod 37 fixed on the rotating output shaft thereof to rotate, drives the driving cross rod 36 to drive the motor platform 310 to move, the support block welded and fixed at the bottom of the motor platform 310 is clamped in the sliding groove at the top of the adjusting base 31, so that the motor platform 310 relatively moves more stably at the top of the adjusting base 31, the stability of the device during working is effectively ensured, meanwhile, the adjusting base 31 is arranged to be rotationally connected with the crane main body 1, so that when the device is driven to work, the rotation of the adjusting base 31 is supplemented, can effectively ensure the driving stability of the driving mechanism for the device, the buffering element 312 is arranged in a matching way to be elastically supported at the periphery of the bottom of the adjusting base 31, so that the adjusting base 31 is more stable and gentle when rotating, the working stability of the device is effectively ensured, the cushioning element 312 inside the device may be provided as a spring or other resilient element as required during the manufacturing process.
The right side of the driving mechanism is provided with a transmission mechanism, the transmission mechanism comprises a transmission shaft 41 inside, the transmission shaft 41 is hinged to the outer wall of the top of the main arm 2 through a support, the lower end of the transmission shaft 41 is fixedly provided with a first universal joint 42, the top end of the transmission shaft 41 is fixedly provided with a second universal joint 43, the other end of the second universal joint 43 is fixedly welded with a shaft lever 44, the other end of the shaft lever 44 is fixedly welded with a first bevel gear 45, the middle position of the shaft lever 44 is arranged on the outer wall above the main arm 2 through the support, the shaft lever 44 is rotatably connected with the main arm 2, teeth assembled on the outer side of the first bevel gear 45 are matched with teeth assembled on the outer side of a second bevel gear 53, the first bevel gear 45 is in meshing transmission connection with the second bevel gear 53 through teeth, when the device works, the driving rod 37 rotates, the transmission, the transmission shaft 41 can transmit rotation to the shaft lever 44 by means of the second universal joint 43, and the rotation of the shaft lever 44 drives the first bevel gear 45 to rotate, so that the stability of power output is guaranteed, the power synchronism between the auxiliary supporting mechanism and the driving mechanism is guaranteed when the device works, and the working stability of the device is guaranteed to be continuous effectively.
An auxiliary supporting mechanism is arranged above the right side of the transmission mechanism, the auxiliary supporting mechanism comprises a supporting sleeve 51, a supporting screw 52 is inserted in the middle of the supporting sleeve 51, a second bevel gear 53 is hinged to the left end of the supporting sleeve 51, a hinged rod 54 is fixedly welded at the right end of the supporting screw 52, the second bevel gear 53 is rotatably connected with the supporting sleeve 51, the supporting screw 52 penetrates through the second bevel gear 53 and is inserted in the supporting sleeve 51, threads are uniformly assembled on the inner wall of the second bevel gear 53, the threads assembled on the outer wall of the supporting screw 52 are matched with the threads assembled on the inner wall of the second bevel gear 53, the supporting screw 52 is rotatably connected with the threads of the second bevel gear 53 through the meshing of the threads, when the auxiliary supporting mechanism works, the first bevel gear 45 is meshed with the second bevel gear 53, the second bevel gear 53 is subjected to power transmission through the first bevel gear 45, under the thread engagement effect between the second bevel gear 53 and the support screw 52, the support screw 52 moves left and right in the second bevel gear 53, the movement of the support screw 52 and the rotation between the cantilever main body 6 and the main arm 2 are ensured to be continuously matched, the support screw 52 is connected and supported between the main arm 2 and the cantilever main body 6, and by means of the stability of triangular support, the cantilever main body 6 is firmer relative to the main arm 2, the auxiliary support reinforcement of the cantilever main body 6 is facilitated, and the structural stability of the device is greatly improved.
The right end of the main arm 2 is hinged with a cantilever main body 6, the middle position of the cantilever main body 6 is provided with a buffer mechanism, the buffer mechanism comprises a through groove 71 inside, the through groove 71 is arranged at the middle position of the cantilever main body 6, the hinge block 72 is embedded at the middle position of the through groove 71, the outer wall of the hinge block 72 is provided with a clamping groove, the clamping groove is clamped on the inner wall of the through groove 71, the clamping groove formed on the outer wall of the hinge block 72 is matched with the inner wall of the through groove 71, the hinge block 72 is in sliding connection with the through groove 71 through the clamping groove, the hinge block 72 is hinged on the hinge rod 54, through setting up articulated piece 72 and can sliding in leading to the inslot of groove 71 for support screw 52 can not block between the removal with cantilever main part 6, the effectual support stability who ensures support screw 52 to cantilever main part 6 when cantilever main part 6 rotates, the effectual job stabilization who ensures the device is reasonable.
The upper end and the lower end of the inside of the through groove 71 are symmetrically and fixedly provided with the first springs 73, the other end of each group of the first springs 73 is fixedly provided with the bracket 74, the bracket 74 is arc-shaped, the bracket 74 is clamped in a clamping groove formed in the outer wall of the hinge block 72, the bracket 74 is elastically and telescopically connected with the through groove 71 through the first springs 73 and is attached to the outer side of the hinge block 72 through the bracket 74, the hinge block 72 is more stable and flat when moving by virtue of elastic support of the first springs 73, meanwhile, after the cantilever body 6 is damaged in use, the upper end support end of the cantilever body loses tension, the cantilever body 6 is elastically supported by the first springs 73 when falling downwards, by virtue of elastic support of the first springs 73, impact force generated when the cantilever body 6 is loosened can be effectively reduced, and the use safety of the device is effectively guaranteed.
The clamping mechanism is installed below the cantilever main body 6, the clamping mechanism comprises a clamping plate 81 inside, the clamping plate 81 is hinged to the bottom of the cantilever main body 6, the bottom of the clamping plate 81 is welded and communicated with a connecting cylinder 82, a clamping sleeve ring 83 is fixedly installed at the lower end of the connecting cylinder 82, slots 84 are evenly formed in the inner wall of the clamping sleeve ring 83, an inserting rod 85 is inserted into each slot 84, a clamping frame 86 is fixedly installed at one end, close to the middle position of the clamping sleeve ring 83, of each inserting rod 85, a second spring 87 is sleeved on the outer side of each inserting rod 85, one end of each second spring 87 is fixedly installed inside each slot 84, the other end of each second spring 87 is fixedly installed on each clamping frame 86, each clamping frame 86 is elastically and telescopically connected with each slot 84 through the second spring 87, a groove is formed in the middle position of each clamping frame 86, the appearance of each groove is arc-shaped, and the clamping plates 81 are arranged on the front side and, and set up holding frame 86 and carry out the block centre gripping to the hoist cable, effectually avoid the hoist cable at the during operation, because wind-force blows and leads to the amplitude of rocking too big, be favorable to guaranteeing the device to the fixed centre gripping stability of hoist cable, be arc through setting up the inside recess of holding frame 86, and carry out elastic support through second spring 87 to holding frame 86, make the device when carrying out the centre gripping to the hoist cable, can have certain buffering, effectually prevent that the hoist cable from rubbing too big hoist cable wearing and tearing seriously with cantilever main part 6 aloft, be favorable to prolonging the life of hoist cable.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a portal crane cantilever stand supports supplementary fixed establishment, includes hoist main part (1) and servo motor (311), its characterized in that: the crane is characterized in that a main arm (2) is hinged to the right side of the crane main body (1), a driving mechanism is mounted inside the crane main body (1), the driving mechanism comprises an adjusting base (31), the adjusting base (31) is hinged to the inside of the crane main body (1), a supporting frame (32) is fixedly mounted at the top of the adjusting base (31), rotating shafts (33) are symmetrically inserted into the supporting frame (32) in an upper and lower manner, driving gears (34) are symmetrically fixed on the outer walls of the front side and the rear side of each rotating shaft (33), worm gears (35) are fixedly mounted on the outer sides of the middle positions of the rotating shafts (33) in each group, a driving cross rod (36) is clamped between the rotating shafts (33) in the upper and lower groups, a driving rod (37) is inserted into the middle position of the driving cross rod (36), and a worm (38) is sleeved, a retainer (39) is sleeved at the left end and the right end of the worm (38), a motor platform (310) is fixedly welded at the left end of the driving cross rod (36), a servo motor (311) is fixedly installed above the motor platform (310), buffer elements (312) are uniformly and fixedly installed at the left end and the right end of the bottom of the adjusting base (31), a transmission mechanism is installed at the right side of the driving mechanism, the transmission mechanism comprises a transmission shaft (41) inside, the transmission shaft (41) is hinged to the outer wall of the top of the main arm (2) through a support, a first universal joint (42) is fixedly installed at the lower end of the transmission shaft (41), a second universal joint (43) is fixedly installed at the top end of the transmission shaft (41), a shaft lever (44) is fixedly welded at the other end of the second universal joint (43), and a first bevel gear (45) is fixedly welded at the other, the auxiliary supporting mechanism is installed at the upper right side of the transmission mechanism, the supporting sleeve (51) is arranged in the auxiliary supporting mechanism, a supporting screw rod (52) is inserted in the middle of the supporting sleeve (51), a second bevel gear (53) is installed at the left end of the supporting sleeve (51) in a hinged mode, a hinge rod (54) is fixedly welded at the right end of the supporting screw rod (52), a cantilever main body (6) is installed at the right end of the main arm (2) in a hinged mode, a buffering mechanism is installed at the middle of the cantilever main body (6), a through groove (71) is formed in the buffering mechanism, the through groove (71) is arranged at the middle of the cantilever main body (6), a hinge block (72) is embedded in the middle of the through groove (71), first springs (73) are symmetrically and fixedly installed at the upper end and the lower end of the interior of the through groove (71), and a bracket (74) is fixedly installed at the other end, fixture is installed to the below of cantilever main part (6), and fixture's inside includes grip block (81), the articulated bottom of installing in cantilever main part (6) of grip block (81), the bottom welding intercommunication of grip block (81) has connecting cylinder (82), and the lower extreme fixed mounting of connecting cylinder (82) has the centre gripping lantern ring (83), slot (84), and every group have evenly been seted up on the inner wall of the centre gripping lantern ring (83) the inside of slot (84) is all inserted and is equipped with inserted bar (85), every group inserted bar (85) are attached in the equal fixed mounting of one end in the centre gripping lantern ring (83) intermediate position has holding frame (86), the outside cover of inserted bar (85) is established and is installed second spring (87).
2. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: the upper and lower bilateral symmetry of drive horizontal pole (36) is fixed with the rack, and the rack corresponds the block about between two sets of drive gear (34) that correspond, the rack tooth of assembly and the tooth looks adaptation of drive gear (34) outside assembly on drive horizontal pole (36), drive gear (34) are connected with drive horizontal pole (36) meshing rotation through the meshing of tooth.
3. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: the driving rod (37) is transversely inserted in the middle of the driving cross rod (36), the driving rod (37) is rotatably connected with the driving cross rod (36), a square groove is formed in the middle of the worm (38), the driving rod (37) is inserted in the square groove formed in the middle of the worm (38), the outside size of the driving rod (37) is matched with the inside size of the square groove formed in the middle of the worm (38), the worm (38) is connected with the driving rod (37) in a left-right sliding mode through the square groove, one end of the driving rod (37) is fixedly installed on a rotating output shaft of the servo motor (311), and the other end of the driving rod (37) is fixedly installed on the first universal joint (42).
4. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: holder (39) rotate with actuating lever (37) and be connected, holder (39) rotate with pivot (33) and be connected, the tooth of worm (38) outside assembly and the tooth looks adaptation of worm wheel (35) outside assembly, worm (38) are connected through the meshing of tooth and worm wheel (35) meshing rotation.
5. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: the bottom of the motor platform (310) is fixedly welded with a supporting block, a sliding groove is formed in the middle of the top of the adjusting base (31), the supporting block fixed to the bottom of the motor platform (310) is inserted into the sliding groove formed in the top of the adjusting base (31), the outside size of the bottom of the supporting block below the motor platform (310) is matched with the inside size of the sliding groove formed in the top of the adjusting base (31), the motor platform (310) is connected with the adjusting base (31) in a left-right sliding mode through the matching of the supporting block and the sliding groove, the other end of the buffering element (312) is fixedly installed at the bottom of the crane main body (1), and the adjusting base (31) is connected with the crane main body (1) in an elastic rotating mode through the buffering element (312.
6. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: the middle position of the shaft lever (44) is mounted on the outer wall above the main arm (2) through a support, the shaft lever (44) is connected with the main arm (2) in a rotating mode, teeth assembled on the outer side of the first bevel gear (45) are matched with teeth assembled on the outer side of the second bevel gear (53), and the first bevel gear (45) is in meshing transmission connection with the second bevel gear (53) through meshing of the teeth.
7. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: the second bevel gear (53) is rotatably connected with the support sleeve (51), the support screw (52) penetrates through the second bevel gear (53) and is inserted into the support sleeve (51), threads are uniformly assembled on the inner wall of the second bevel gear (53), the threads assembled on the outer wall of the support screw (52) are matched with the threads assembled on the inner wall of the second bevel gear (53), and the support screw (52) is rotatably connected with the threads of the second bevel gear (53) through meshing of the threads.
8. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: the hinge joint is characterized in that the outer wall of the hinge joint block (72) is provided with a clamping groove, the clamping groove is clamped on the inner wall of the through groove (71), the clamping groove formed in the outer wall of the hinge joint block (72) is matched with the inner wall of the through groove (71), the hinge joint block (72) is in sliding connection with the through groove (71) through the clamping groove, and the hinge joint block (72) is hinged to the hinge joint rod (54).
9. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 8, wherein: the bracket (74) is arc-shaped, the bracket (74) is clamped in a clamping groove formed in the outer wall of the hinge block (72), and the bracket (74) is elastically and telescopically connected with the through groove (71) through a first spring (73).
10. The cantilever column support auxiliary fixing mechanism of the portal crane according to claim 1, wherein: one end of the second spring (87) is fixedly installed in the slot (84), the other end of the second spring (87) is fixedly installed on the clamping frame (86), the clamping frame (86) is elastically and telescopically connected with the slot (84) through the second spring (87), a groove is formed in the middle of the clamping frame (86), and the shape of the groove is arc-shaped.
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| CN202010433739.7A CN111675115B (en) | 2020-05-21 | 2020-05-21 | Cantilever upright post supporting auxiliary fixing mechanism of portal crane |
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Cited By (1)
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|---|---|---|---|---|
| CN113602986A (en) * | 2021-09-30 | 2021-11-05 | 南通杰品起重设备有限公司 | Self-stabilizing cantilever of crane |
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| CN111675115B (en) | 2022-04-12 |
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