CN114212672A - Portal crane for roads and bridges - Google Patents
Portal crane for roads and bridges Download PDFInfo
- Publication number
- CN114212672A CN114212672A CN202111517035.9A CN202111517035A CN114212672A CN 114212672 A CN114212672 A CN 114212672A CN 202111517035 A CN202111517035 A CN 202111517035A CN 114212672 A CN114212672 A CN 114212672A
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- China
- Prior art keywords
- brush roll
- fixed
- trolley
- motor
- brush
- 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.)
- Pending
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- 239000000463 material Substances 0.000 claims abstract description 46
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000000670 limiting effect Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/10—Undercarriages or bogies, e.g. end carriages, end bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/16—Travelling gear incorporated in or fitted to trolleys or cranes with means for maintaining alignment between wheels and track
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
A portal crane for roads and bridges comprises lower end beams, wherein a cart travelling mechanism is assembled on the lower end beams, gantry crane supporting legs are fixed at the top ends of the two lower end beams, trolley travelling tracks are laid at the top ends of main beams, a trolley is assembled on the trolley travelling tracks, a hoisting mechanism is arranged on the trolley, sundry removing devices are detachably fixed at the two ends of the two lower end beams and comprise fixing plates, each cleaning device comprises a brush roll supporting frame, brush roll supporting plates are fixed in the brush roll supporting frames, a first brush roll is arranged between the two brush roll supporting plates, and a second brush roll is arranged under a gearbox; the outer end of the brush roll supporting frame is fixed with a shoveling device, the shoveling device comprises a material collecting box, a supporting shaft is arranged in the material collecting box, a spiral feeding blade is arranged on the supporting shaft, a shoveling hopper is arranged on the outer side of the material collecting box, and the shoveling hopper is communicated with the material collecting box. The invention has simple structure and convenient use.
Description
Technical Field
The invention belongs to the technical field of hoisting machinery, and particularly relates to a portal crane for roads and bridges.
Background
The gantry crane (also called gantry crane) is a bridge type crane with a bridge frame supported on a ground track through supporting legs at two sides, and structurally comprises a lower end beam, an upper end beam, a main beam, a cart running mechanism, a hoisting trolley, an electric part and the like, and a portal upper bridge frame (comprising the main beam and the end beam), the supporting legs, a lower cross beam and the like. The portal crane can be used in road and bridge construction engineering, the road and bridge construction site is outdoor and is mostly a place with more dust, therefore, a lot of earth often can be blown down because of strong wind on portal crane's the cart walking track, the cart walking track has been buried even, especially after big snow day, outdoor portal crane's cart walking track often is covered by the university, therefore when using the portal crane once more, it clears away to need the manual work to cover snow deposit or earth on cart walking track, it is very inconvenient to clean debris manually, and manpower and material resources are wasted, therefore, current portal crane for road and bridge structure is unreasonable, need the manual work often to clear up the debris on the cart walking track, it is inconvenient to clear up.
Disclosure of Invention
The invention provides a portal crane for roads and bridges, aiming at solving the technical problem that the existing portal crane for roads and bridges is unreasonable in structure, and comprising two lower end beams which are horizontally arranged at intervals and used for supporting, wherein a cart travelling mechanism is assembled on the lower end beams and comprises cart travelling wheels and a cart travelling motor, the cart travelling wheels are assembled on the lower end beams, the lower roll edges of the cart travelling wheels are in rolling fit with cart travelling rails, the cart travelling motor is arranged on the lower end beams, the power output shaft of the cart travelling motor is in transmission connection with the cart travelling wheels, and the cart travelling motor drives the cart travelling wheels to move along the cart travelling rails. The top of two lower end beams all is fixed with the door machine landing leg of vertical setting, the door machine landing leg plays the supporting role, two door machine landing leg symmetries set up, the top of two door machine landing legs all is fixed with the upper end roof beam parallel with the lower end roof beam, be equipped with the girder that two parallels and interval set up between two door machine landing legs, the both ends of girder correspond respectively and fix on the upper end roof beam on door machine landing leg top, the dolly walking track parallel with the girder has been laid on the top of girder, be equipped with the trolley on the dolly walking track, the trolley includes the trolley frame, the trolley frame plays the supporting role, the bottom four corners department of trolley frame all is equipped with the trolley walking wheel, the lower roll-in cooperation of trolley walking wheel is followed with trolley walking track roll-in, be equipped with trolley walking motor on the trolley frame, trolley walking motor is connected with trolley walking wheel transmission, trolley walking motor drives trolley walking wheel and follows trolley walking track displacement. The top of dolly frame is equipped with hoisting mechanism, and hoisting mechanism is including playing to rise reel, play to rise the motor, plays to rise motor and play to rise the reel assembly, and wire rope winds on playing to rise the reel, plays to rise the below of reel and is equipped with the hoist, and the hoist is connected with playing to rise the reel through wire rope, plays to rise the motor and drives to rise the reel and receive and release wire rope, and wire rope pulls the hoist and lifts by crane the heavy object. Both ends of the two lower end beams can be detachably fixed with a sundries removing device, the sundries removing device comprises a fixed plate which is vertically arranged, the fixed plate plays a role of supporting and fixing, a plurality of fixed holes are formed in the fixed plate, the fixed plate can be detachably fixed at the end part of the lower end beam, one side of the fixed plate, far away from the lower end beams, is fixed with a cleaning device, the cleaning device comprises a brush roll supporting frame which is fixed with the fixed plate, two brush roll supporting plates which are vertically arranged at intervals are fixed in the brush roll supporting frame, a first brush roll is arranged between the two brush roll supporting plates, both ends of the first brush roll are respectively fixed with a supporting rod, the supporting rods are rotatably connected to the corresponding brush roll supporting plates, the supporting rods extend out of the brush roll supporting plates, through holes are formed in the brush roll supporting frame below the first brush roll, bristles on the first brush roll extend to the lower part of the brush roll supporting frame, gearboxes are arranged on the brush roll supporting frames at both ends of the first brush roll, the bracing piece at first brush roller both ends is connected rather than the gearbox transmission that corresponds, all be equipped with the second brush roller of vertical setting under the gearbox, the upper end and the gearbox transmission of second brush roller are connected, the lower extreme of second brush roller extends to the below of brush roller support frame, the power input shaft of one of them gearbox extends the brush roller support frame, and the end fixing has the second band pulley, first brush roller can clear away the earth ability debris on big car walking track top, debris such as earth of two second brush rollers to big car walking track side clean. The outer end of brush roll support frame is fixed with shovel material device, shovel material device includes the case that gathers materials fixed with the brush roll support frame, the back shaft that the level that is equipped with in the case that gathers materials set up, be equipped with spiral feeding blade on the back shaft, the both ends of back shaft are passed through the rotatable assembly of bracing piece on the case that gathers materials, the bracing piece that is close to second band pulley one side extends the case that gathers materials, the end fixing of bracing piece has first band pulley, be equipped with the belt between first band pulley and the second band pulley, the outside of case that gathers materials is equipped with the motor fixing base, be fixed with motor on the motor fixing base, motor power's power output shaft and first band pulley transmission are connected, set up the blanking hole of vertical setting on the case that gathers materials of back shaft below keeping away from motor, the outside of case that gathers materials is equipped with shovel hopper, shovel hopper and case intercommunication that gathers materials, motor drive back shaft rotation, earth that enters into the case that gathers materials can the debris from the blanking hole department of case bottom whereabouts of gathering materials under spiral feeding blade's transport.
Preferably, the ends of the trolley walking tracks on the main beams are provided with limit blocks for limiting.
Preferably, the main beam is provided with a guardrail with a protection function.
Preferably, one of the lower end beams is provided with a cable drum.
The scheme has the following advantages:
the material shoveling device is arranged, the shoveling hopper collects sundries such as soil covered on the top end of the cart traveling track into the material collecting box, the supporting shaft drives the spiral feeding blade to rotate, and the spiral feeding blade conveys the sundries such as soil in the material collecting box to the material discharging opening and discharges the sundries from the material discharging opening; due to the arrangement of the cleaning device, the first brush rollers can clean soil and sundries at the top end of the cart travelling track, and the two second brush rollers can clean soil and other sundries on the side surface of the cart travelling track; the trolley is arranged, the trolley can move along a trolley walking track on the main beam, and the trolley is used for hoisting a heavy object and moving the heavy object from one position to another position; the limiting block on the main beam has a limiting effect, and the trolley is prevented from derailing and falling.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic perspective view of the sundries removing device;
FIG. 4 is a schematic front view of the sundries removing device;
FIG. 5 is a left side view schematically illustrating the structure of the sundries removing device;
FIG. 6 is a schematic top view of the sundries removing device;
fig. 7 is an enlarged view of a portion a of fig. 1.
Reference numerals: 1. a lower end beam; 2. a gantry crane supporting leg; 3. an upper end beam; 4. a main beam; 5. a trolley; 6. a sundry removing device; 7. a cleaning device; 8. a material shoveling device; 9. a cart walking track; 11. a cart traveling mechanism; 12. a cable drum; 41. a trolley walking track; 42. a limiting block; 43. a guardrail; 51. electric sawing; 61. a fixing plate; 611. a fixing hole; 71. a brush roll support frame; 72. a brush roll support plate; 73. a first brush roller; 74. a support bar; 75. a gearbox; 76. a second brush roller; 77. a second pulley; 81. a material collecting box; 82. a support shaft; 83. a helical feeding blade; 84. a first pulley; 85. a power motor; 851. a motor fixing seat; 86. a blanking hole; 87. shoveling a hopper; 88. a belt.
Detailed Description
As shown in fig. 1-7, a portal crane for roads and bridges comprises two lower end beams 1 which are horizontally arranged and are arranged at intervals, wherein the lower end beams 1 play a supporting role, a cart travelling mechanism 11 is assembled on the lower end beams 1, the cart travelling mechanism 11 comprises cart travelling wheels and a cart travelling motor, the cart travelling wheels are assembled on the lower end beams 1, the lower roll edges of the cart travelling wheels are in rolling fit with cart travelling rails 9, the cart travelling motor is arranged on the lower end beams 1, the power output shaft of the cart travelling motor is in transmission connection with the cart travelling wheels, and the cart travelling motor drives the cart travelling wheels to move along the cart travelling rails 9. The top ends of two lower end beams 1 are respectively fixed with a gantry crane supporting leg 2 which is vertically arranged, the gantry crane supporting legs 2 play a supporting role, the two gantry crane supporting legs 2 are symmetrically arranged, the top ends of the two gantry crane supporting legs 2 are respectively fixed with an upper end beam 3 which is parallel to the lower end beam 1, two main beams 4 which are parallel and arranged at intervals are arranged between the two gantry crane supporting legs 2, two ends of each main beam 4 are respectively and correspondingly fixed on the upper end beams 3 at the top ends of the gantry crane supporting legs 2, a trolley walking track 41 which is parallel to the main beams 4 is laid at the top end of each main beam 4, a trolley 5 is assembled on each trolley walking track 41, each trolley 5 comprises a trolley frame which plays a supporting role, trolley walking wheels are assembled at four corners at the bottom end of each trolley frame, the lower roll edges of the trolley walking wheels are matched with the trolley walking tracks 41 in a rolling way, a trolley walking motor is assembled on each trolley frame, and the trolley walking motor is in transmission connection with the trolley walking wheels, the trolley traveling motor drives the trolley traveling wheels to move along the trolley traveling rails 41. The top of dolly frame is equipped with hoisting mechanism, and hoisting mechanism is including playing to rise reel, play to rise motor, plays to rise motor and play to rise reel assembly, and wire rope winds on playing to rise the reel, plays to rise the below of reel and is equipped with hoist 51, and hoist 51 is connected with playing to rise the reel through wire rope, plays to rise the motor and drives to rise the reel and receive and release wire rope, and wire rope pulls hoist 51 and lifts by crane to the heavy object. The two ends of the two lower end beams 1 can be detachably fixed with the sundries removing device 6, the sundries removing device 6 comprises a fixing plate 61 which is vertically arranged, the fixing plate 61 plays a role in supporting and fixing, a plurality of fixing holes 611 are formed in the fixing plate 61, the fixing plate 61 is detachably fixed at the end part of the lower end beam 1, a cleaning device 7 is fixed at one side of the fixing plate 61 far away from the lower end beam 1, the cleaning device 7 comprises a brush roll supporting frame 71 fixed with the fixing plate 61, two brush roll supporting plates 72 which are vertically arranged at intervals are fixed in the brush roll supporting frame 71, a first brush roll 73 is arranged between the two brush roll supporting plates 72, supporting rods 74 are fixed at two ends of the first brush roll 73, the supporting rods 74 are rotatably connected to the corresponding brush roll supporting plates 72, the supporting rods 74 extend out of the brush roll supporting plates 72, through holes are formed in the brush roll supporting frame 71 below the first brush roll 73, and the brush hair on the first brush roller 73 extends to the lower part of the brush roller supporting frame 71, the brush roller supporting frames 71 at the two ends of the first brush roller 73 are respectively provided with a gearbox 75, the supporting rods 74 at the two ends of the first brush roller 73 are in transmission connection with the corresponding gearboxes 75, vertically arranged second brush rollers 76 are arranged right below the gearboxes 75, the upper ends of the second brush rollers 76 are in transmission connection with the gearboxes 75, the lower ends of the second brush rollers 76 extend to the lower part of the brush roller supporting frames 71, the power input shaft of one of the gearboxes 75 extends out of the brush roller supporting frame 71, the end parts of the power input shaft are fixedly provided with second belt wheels 77, the first brush roller 73 can clean out sundries on the top end of the cart walking track 9, and the two second brush rollers 76 clean sundries such as the soil on the side surface of the cart walking track 9. The outer end of the brush roll supporting frame 71 is fixed with a shoveling device 8, the shoveling device 8 comprises a material collecting box 81 fixed with the brush roll supporting frame 71, a horizontally arranged supporting shaft 82 is arranged in the material collecting box 81, a spiral feeding blade 83 is arranged on the supporting shaft 82, two ends of the supporting shaft 82 are rotatably assembled on the material collecting box 81 through the supporting rod 74, the supporting rod 74 close to one side of the second belt wheel 77 extends out of the material collecting box 81, a first belt wheel 84 is fixed at the end part of the supporting rod 74, a belt 88 is arranged between the first belt wheel 84 and the second belt wheel 77, a motor fixing seat 851 is arranged at the outer side of the material collecting box 81, a power motor 85 is fixed on the motor fixing seat 851, a power output shaft of the power motor 85 is in transmission connection with the first belt wheel 84, a vertically arranged blanking hole 86 is arranged on the material collecting box 81 under the supporting shaft 82 far away from the power motor 85, the outer side of the material collecting box 81 is provided with a shoveling hopper 87, the shoveling hopper 87 is communicated with the material collecting box 81, the power motor 85 drives the supporting shaft 82 to rotate, and soil energy sundries entering the material collecting box 81 fall from a material falling hole 86 at the bottom end of the material collecting box 81 under the conveying of the spiral feeding blade 83.
Preferably, the end parts of the trolley travelling rails 41 on the main beams 4 are provided with limit blocks 42 for limiting.
Preferably, the main beam 4 is provided with a protective guardrail 43.
Preferably, one of the lower end beams 1 is provided with a cable drum 12.
The use process comprises the following steps:
when the invention is used, the sundries removing device 6 is detachably fixed at the end parts of two lower end beams 1 through fixing bolts respectively, a gap exists between the bottom end surface of a shovel hopper 87 and the top end of a cart walking track 9, the brush hair of a first brush roller 73 is contacted with the top end surface of the cart walking track 9, two second brush rollers 76 are respectively positioned at two sides of the cart walking track 9, the brush hair of the two second brush rollers 76 is contacted with two sides of the cart walking track 9, a power motor 85 is started, the power motor 85 drives a supporting shaft 82 to rotate, a spiral feeding blade 83 on the supporting shaft 82 rotates along with the supporting shaft 82, the sundries entering into a material collecting box 81 can be conveyed to a blanking hole 86 and fall to the ground far away from the cart walking track 9 from the blanking hole 86, the first power motor 85 drives the first brush roller 73 and the second brush roller 76 to rotate, the first brush roller 73 cleans the sundries such as the mud at the top end of the cart walking track 9, the second brush rollers 76 clean brush rollers on both sides of the cart running rail 9. And starting the cart travelling mechanism 11, wherein the cart travelling mechanism 11 drives the gantry crane to move along the cart travelling track 9, and simultaneously drives the sundries removing device 6 to move.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a gantry crane for road and bridge, lower end beam including two levels and interval setting, be equipped with cart running gear on the lower end beam, the top of two lower end beams all is fixed with the door machine landing leg of vertical setting, two door machine landing leg symmetries set up, the top of two door machine landing legs all is fixed with the upper end roof beam parallel with lower end beam, be equipped with the girder of two parallels and interval setting between two door machine landing legs, the both ends of girder correspond respectively and fix on the upper end roof beam on door machine landing leg top, the dolly walking track parallel with the girder has been laid on the top of girder, be equipped with the trolley on the dolly walking track, its characterized in that: both ends of the two lower end beams can be detachably fixed with a sundries removing device, the sundries removing device comprises a fixed plate which is vertically arranged, a plurality of fixed holes are formed in the fixed plate, the fixed plate can be detachably fixed at the end part of the lower end beam, one side of the fixed plate, which is far away from the lower end beam, is fixed with a cleaning device, the cleaning device comprises a brush roll supporting frame which is fixed with the fixed plate, two vertical brush roll supporting plates which are arranged at intervals are fixed in the brush roll supporting frame, a first brush roll is arranged between the two brush roll supporting plates, supporting rods are fixed at both ends of the first brush roll and can be rotatably connected to the corresponding brush roll supporting plates, the supporting rods extend out of the brush roll supporting plates, through holes are formed in the brush roll supporting frame below the first brush roll, bristles on the first brush roll extend to the lower part of the brush roll supporting frame, gearboxes are arranged on the brush roll supporting frames at both ends of the first brush roll, the supporting rods at two ends of the first brush roller are in transmission connection with the corresponding gear boxes, the second brush rollers which are vertically arranged are arranged right below the gear boxes, the upper ends of the second brush rollers are in transmission connection with the gear boxes, the lower ends of the second brush rollers extend to the lower part of the brush roller supporting frame, the power input shaft of one gear box extends out of the brush roller supporting frame, and the end part of the power input shaft is fixed with a second belt wheel; the outer end of brush roll support frame is fixed with shovel material device, shovel material device includes the case that gathers materials fixed with the brush roll support frame, the back shaft that the level that is equipped with in the case that gathers materials set up, be equipped with spiral feeding blade on the back shaft, the both ends of back shaft are passed through the rotatable assembly of bracing piece on the case that gathers materials, the bracing piece that is close to second band pulley one side extends the case that gathers materials, the end fixing of bracing piece has first band pulley, be equipped with the belt between first band pulley and the second band pulley, the outside of case that gathers materials is equipped with the motor fixing base, be fixed with motor on the motor fixing base, motor power's power output shaft and first band pulley transmission are connected, set up the blanking hole of vertical setting on the case that gathers materials of back shaft below of keeping away from motor, the outside of case that gathers materials is equipped with shovel hopper, shovel hopper and case intercommunication that gathers materials.
2. The gantry crane for roads and bridges according to claim 1, wherein: the cart walking mechanism comprises cart walking wheels and a cart walking motor, the cart walking wheels are assembled on the lower end beam, the cart walking motor is arranged on the lower end beam, and a power output shaft of the cart walking motor is in transmission connection with the cart walking wheels.
3. The gantry crane for roads and bridges according to claim 2, wherein: the hoisting trolley comprises a trolley frame, trolley travelling wheels are arranged at four corners of the bottom end of the trolley frame, a trolley travelling motor is arranged on the trolley frame, and the trolley travelling motor is in transmission connection with the trolley travelling wheels; the top of dolly frame is equipped with hoisting mechanism, and hoisting mechanism is including playing to rise reel, play to rise the motor, plays to rise motor and play to rise the reel assembly, and wire rope winds on playing to rise the reel, plays to rise the below of reel and is equipped with the hoist, and the hoist passes through wire rope and plays to rise the reel and be connected.
4. The gantry crane for roads and bridges according to claim 3, wherein: the end parts of the trolley walking tracks on the main beams are provided with limiting blocks with limiting functions.
5. The gantry crane for roads and bridges according to claim 4, wherein: the main beam is provided with a guardrail with a protection function.
6. The gantry crane for roads and bridges according to claim 5, wherein: one of the lower end beams is provided with a cable drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111517035.9A CN114212672A (en) | 2021-12-13 | 2021-12-13 | Portal crane for roads and bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111517035.9A CN114212672A (en) | 2021-12-13 | 2021-12-13 | Portal crane for roads and bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114212672A true CN114212672A (en) | 2022-03-22 |
Family
ID=80701214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111517035.9A Pending CN114212672A (en) | 2021-12-13 | 2021-12-13 | Portal crane for roads and bridges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114212672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116281638A (en) * | 2023-05-25 | 2023-06-23 | 河南省大方重型机器有限公司 | Portal crane with clearance structure |
-
2021
- 2021-12-13 CN CN202111517035.9A patent/CN114212672A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116281638A (en) * | 2023-05-25 | 2023-06-23 | 河南省大方重型机器有限公司 | Portal crane with clearance structure |
| CN116281638B (en) * | 2023-05-25 | 2023-08-11 | 河南省大方重型机器有限公司 | Portal crane with clearance structure |
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