CN110171771B - Trolley overhead hoist - Google Patents
Trolley overhead hoist Download PDFInfo
- Publication number
- CN110171771B CN110171771B CN201910549044.2A CN201910549044A CN110171771B CN 110171771 B CN110171771 B CN 110171771B CN 201910549044 A CN201910549044 A CN 201910549044A CN 110171771 B CN110171771 B CN 110171771B
- Authority
- CN
- China
- Prior art keywords
- lifting
- lifting device
- guide rail
- trolley
- traction
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 30
- 210000000078 claw Anatomy 0.000 claims description 27
- 238000000034 method Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
-
- 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
- B66C9/02—Travelling gear incorporated in or fitted to trolleys or cranes for underhung trolleys or 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
- B66C9/08—Runners; Runner bearings
-
- 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
- B66C9/14—Trolley or crane travel drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses a trolley lifting device, which comprises a lifting mechanism, wherein the lifting mechanism comprises: a guide rail; the lifting device is in rolling fit with the guide rail; the two traction trolleys are arranged on the guide rail in a rolling manner, are respectively positioned at two sides of the lifting device along the extending direction of the guide rail, and are connected with the lifting device. Along the advancing direction of the trolley lifting device, one traction trolley is used for pulling the lifting device, and the other traction trolley is used for pushing the lifting device. According to the forward direction of the trolley lifting device, the traction trolley is arranged at the front end and the rear end of the lifting device, so that when the lifting device is broken or falls off in the lifting operation process, the slope sliding accident is avoided.
Description
Technical Field
The invention relates to the field of tunnel construction material lifting, in particular to a trolley lifting device.
Background
With the continuous development of road construction in China, the application of tunnels in urban subways, railway traffic and highway traffic is very common. In tunnel construction, material handling work has great influence to engineering progress and construction safety. At present, some tunnel construction adopts a method of supporting precast concrete segments, and stone and soil generated in the tunneling process are transported out of the tunnel by using track lifting equipment and the segments are transported into the tunnel for installation. In the daily construction process, the equipment is frequently used, the space in the tunnel is narrow and the maintenance is difficult, and the small car is caused to slide in the lifting process due to the breakage of parts. Meanwhile, as the number of the hoisting devices connected to the guide rail is large or the distance between the hoisting devices is large, the hoisting devices are blocked when ascending and descending slopes or turning, and the engineering progress and the construction safety are affected.
Disclosure of Invention
The invention aims to provide a trolley lifting device, which can avoid the occurrence of slope sliding accidents caused by connection fracture or falling off of the lifting device in the operation process when materials in tunnel construction are lifted.
To achieve the purpose, the invention adopts the following technical scheme:
a trolley hoist comprising a hoist mechanism, the hoist mechanism comprising:
a guide rail;
the lifting device is in rolling fit with the guide rail;
the two traction trolleys are arranged on the guide rail in a rolling manner, are respectively positioned at two ends of the lifting device and are connected with the lifting device along the extending direction of the guide rail, and are used for pulling the lifting device along the advancing direction of the trolley lifting device, and are used for pushing the lifting device.
Further, the lifting device comprises a frame, roller groups arranged on the frame, and an electric hoist arranged on the frame, wherein the roller groups are arranged on the guide rails in a rolling way, and the two traction trolleys drive the lifting device to move through the frame.
Further, the trolley lifting device further comprises a material lifting appliance, the material lifting appliance is connected with the electric hoist in a hanging mode, the material lifting appliance comprises a support, a plurality of clamping claw portions are arranged on the support, and the clamping claw portions are all used for being connected with the hanging box in a hanging mode.
Further, the trolley lifting device further comprises a guide mechanism, the guide mechanism comprises a guide rod and a guide hole which is in plug-in fit with the guide rod, one of the guide rod and the guide hole is arranged on the support, and the other one of the guide rod and the guide hole is arranged on the lifting box.
Further, the claw portion comprises a telescopic driving piece and a claw, a first end of the claw is pivoted with the telescopic driving piece, a second end of the claw is used for being hung with the hanging box, and the middle of the claw is pivoted with the support.
Further, the number of the lifting mechanisms is two, the two guide rails are parallel and are arranged at intervals along the horizontal direction, and each lifting mechanism comprises a plurality of lifting devices;
in each lifting mechanism, a plurality of lifting devices are located between two traction trolleys, a plurality of racks are connected with each other, two racks located at the outer ends are respectively connected with two traction trolleys, and at least two electric hoists of the lifting devices are hung with the material lifting device.
Further, the lifting mechanism further comprises a connecting component, two adjacent frames are connected through the connecting component, the frames located at the end parts are connected with the traction trolley through the connecting component along the extending direction of the guide rail.
Further, the roller set comprises an upper roller and a lower roller which are rotatably arranged on the frame, the upper roller and the lower roller are respectively in rolling fit with the upper surface and the lower surface of the guide rail, and the upper roller and the lower roller roll along the extending direction of the guide rail.
Further, the roller set further comprises side wheels, the side wheels are rotatably arranged on the frame and are in rolling fit with two lateral surfaces of the guide rail in the width direction, and the side wheels roll along the extending direction of the guide rail.
Further, the number of the roller groups arranged on each lifting device is four, the four roller groups are distributed in a row by row mode, and the two roller groups are arranged on two sides of the guide rail in a rolling mode.
The invention has the beneficial effects that:
the invention provides a trolley lifting device, which is characterized in that traction trolleys are respectively arranged at two ends of a lifting device, and in the material lifting process, the two traction trolleys can form redundancy protection, and the power loss of any traction trolley does not affect the traction of the lifting device; and when the connection between the adjacent lifting devices or between the lifting devices and the traction trolleys breaks and falls off, the two traction trolleys can limit each lifting device between the two lifting devices, so that the lifting devices are prevented from sliding down. Thereby achieving the purposes of ensuring construction safety and improving working efficiency.
Drawings
FIG. 1 is a front view of a trolley hoist in an embodiment of the present invention;
FIG. 2 is a left side view of a trolley overhead hoist in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a material spreader in an embodiment of the invention;
FIG. 4 is a cross-sectional view of a side wheel in an embodiment of the present invention;
fig. 5 is a schematic view of a connection assembly in an embodiment of the present invention.
Wherein:
1. a lifting mechanism; 11. a guide rail; 12. a lifting device; 121. a frame; 122. an electric hoist; 123. an upper roller; 124. a lower roller; 125. a side wheel; 1251. a wheel axle; 1252. a guide roller; 1253. a bending piece; 13. a traction trolley; 14. a connection assembly; 141. a connecting block; 142. a connecting plate; 143. a transition trolley; 2. a material lifting appliance; 21. a bracket; 22. a telescopic driving member; 23. a claw; 24. a connecting plate; 25. a buffer; 26. a limiting device; 3. hanging a box; 31. lifting lugs; 4. a guide rod; 5. and a guide hole.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.
As shown in fig. 1, a trolley lifting device comprises a lifting mechanism 1, wherein the lifting mechanism 1 comprises a guide rail 11, a lifting device 12 and two traction trolleys 13. The guide rail 11 is used for being in rolling fit with the lifting device 12 and the traction trolley 13, and plays roles of guiding direction and bearing weight; the lifting device 12 is in rolling fit with the guide rail 11 and is used for lifting materials; the two traction trolleys 13 are arranged on the guide rail 11 in a rolling manner, the two traction trolleys 13 are respectively positioned at two ends of the lifting device 12 along the extending direction of the guide rail 11, the two traction trolleys 13 are connected with the lifting device 12, one traction trolley 13 is used for pulling the lifting device 12 along the advancing direction of the trolley lifting device, and the other traction trolley 13 is used for pushing the lifting device 12. Traction trolleys 13 are respectively arranged at two ends of the lifting device 12, and in the material lifting process, the two traction trolleys 13 can form redundancy protection, and the power loss of any one traction trolley 13 does not affect the traction of the lifting device 12; and when the connection between the adjacent lifting devices 12 or between the lifting devices 12 and the traction trolleys 13 breaks and falls off, the two traction trolleys 13 can limit each lifting device 12 between the two, so that the lifting devices 12 are prevented from sliding.
As shown in fig. 1 and 2, the lifting device 12 includes a frame 121, a roller group, and an electric hoist 122. The rack 121 is used as a supporting shell of the lifting device 12 and is used for installing a roller group and connecting with the electric hoist 122 and the traction trolley 13; one end of the electric hoist 122 is connected with the frame 121, the other end is connected with the material lifting appliance 2 in a hanging mode, and the electric hoist 122 is used for lifting materials; the roller group is arranged on the guide rail 11 in a rolling way and rolls along the extending direction of the guide rail 11. Both traction trolleys 13 are connected to the frame 121 and drive the lifting device 12 along the guide rail 11.
As shown in fig. 2 and 3, the trolley lifting device further comprises a material lifting appliance 2, the material lifting appliance 2 is connected with the electric hoist 122 in a hanging mode, the material lifting appliance 2 comprises a support 21, a plurality of clamping claw portions are arranged on the support 21, and the clamping claw portions are used for being connected with the hanging box 3 in a hanging mode. In this embodiment, the support 21 is a square steel structure support, four lifting points are disposed at four corners of the support 21, and the four lifting points are respectively connected with the electric hoist 122 in a hanging manner. Three clamping claw parts are arranged on the bracket 21, and the number of the clamping claw parts can be determined according to actual lifting conditions in other embodiments. The grabbing ends of the three clamping claw parts are arranged in an isosceles triangle, so that three force application points on the hanging box 3 are uniformly stressed during lifting.
The trolley lifting device further comprises a guide mechanism, the guide mechanism comprises a guide rod 4 and a guide hole 5 which can be in plug-in fit with the guide rod 4, one of the guide rod 4 and the guide hole 5 is arranged on the support 21, and the other guide rod is arranged on the lifting box 3. In this embodiment, the first end of the guide rod 4 is fixed on the bracket 21, and the second end of the guide rod 4 is tapered and is in plug-in fit with the guide hole 5. Through setting up guide bar 4 and guiding hole 5, can make accurate, swift the arrival preset position when material hoist 2 descends and snatchs hanging box 3.
Specifically, the jaw portion includes a telescopic driving member 22 and a jaw 23, a first end of the telescopic driving member 22 is pivotally connected to the bracket 21, and a second end of the telescopic driving member 22 is pivotally connected to the jaw 23. The first end of the claw 23 is pivoted with the telescopic driving piece 22, the second end of the claw 23 is in a hook shape and is used for being hung with a lifting lug 31 on the hanging box 3, the middle part of the claw 23 is pivoted with the bracket 21, and the claw 23 can rotate around a pivot point at the middle part of the claw 23. Of course, according to the actual structural characteristics of the clamping claw portion on the bracket 21, a connecting plate 24 may be disposed between the telescopic driving member 22 and the clamping claw 23, where a first end of the connecting plate 24 is pivoted to the telescopic driving member 22, and a second end of the connecting plate 24 is pivoted to the clamping claw 23. In this embodiment, the material spreader 2 further comprises a buffer 25 and a stop device 26. One end of the buffer 25 is fixed on the bracket 21, and the other end of the buffer can be contacted with the upper surface of the hanging box 3 to buffer and limit the descending distance of the material hanging tool 2; the limiting device 26 is arranged on the guide rod 4, the bottom of the limiting device 26 can be contacted with the periphery of the guide hole 5 on the hanging box 3, and the bottom of the limiting device 26 and the bottom of the buffer 25 are positioned on the same horizontal plane. When the material is lifted, the material lifting device 2 descends, the guide rod 4 is inserted into the guide hole 5, the buffer 25 is in contact with the lifting box 3 when the guide rod reaches the preset position, and the material lifting device 2 does not descend any more at the moment, so that the limiting device 26 arranged on the guide rod 4 can be in contact with the upper end face of the lifting box 3 and limit the descending distance of the material lifting device 2. It will be appreciated that the second end of the claw 23 is in the form of a hook, and the push rod of the telescopic driving member 22 drives the claw 23 to rotate around the pivot point in the middle of the claw 23, so that the second end of the claw 23 hooks the lifting lug 31 on the hanging box 3.
As shown in fig. 1 and 2, two lifting mechanisms 1 are provided, two guide rails 11 are parallel and are arranged at intervals along the horizontal direction, and each lifting mechanism 1 comprises a plurality of lifting devices 12. In each lifting mechanism 1, a plurality of lifting devices 12 are positioned between two traction trolleys 13, a plurality of racks 121 are connected with each other, two racks 121 positioned at the outer end are respectively connected with the two traction trolleys 13, and electric hoist 122 of at least two lifting devices 12 is hung with a material lifting appliance 2. In this embodiment, preferably, each lifting mechanism 1 is provided with two electric hoist 122 of lifting device 12 to be connected with the material lifting appliance 2 in a hanging manner, and the electric hoist 122 of each lifting device 12 is respectively connected with lifting points arranged at four corners of the bracket 21 in a hanging manner, so that the lifting box 3 is safe and stable in lifting.
As shown in fig. 1 and 5, the lifting mechanism 1 further comprises a connecting assembly 14, and two adjacent frames 121 and the frames 121 at the end and the traction trolley 13 are connected through the connecting assembly 14. The connection assembly 14 includes two connection blocks 141 and a connection plate 142, and the connection blocks 141 are provided with first and second holes whose hole axes are perpendicular to each other. Two ends of the connecting plate 142 are respectively pivoted with the connecting blocks 141, two connecting blocks 141 are respectively pivoted with the adjacent frame 121 or two connecting blocks 141 are respectively pivoted with the frame 121 and the traction trolley 13 at the end part. The connection assembly 14 allows the lifting device 12 and the traction trolley 13 to smoothly pass through the upward and downward slopes and turns of the guide rail 11. When the distance between the two hoisting devices 12 or the distance between the hoisting device 12 and the traction trolley 13 is large, the distance can be prolonged by sequentially connecting the plurality of connecting assemblies 14 in series. Preferably, among the plurality of connecting assemblies 14 connected in series, a transition trolley 143 can be further arranged between any two adjacent connecting assemblies 14, the transition trolley 143 is in rolling connection with the guide rail 11, and two ends of the transition trolley 143 are respectively pivoted with the connecting blocks 141 on two sides, so that the clamping of the lifting device 12 during turning can be prevented.
As shown in fig. 2, the roller group includes an upper roller 123 and a lower roller 124 rotatably disposed on the frame 121, and the upper roller 123 and the lower roller 124 are respectively engaged with the upper surface and the lower surface of the guide rail 11 in a rolling manner, and roll along the extending direction of the guide rail 11. The upper roller 123 is used for supporting the lifting device 12 to move along the extending direction of the guide rail 11, and the lower roller 124 is used for preventing the lifting device 12 from tilting due to uneven stress of the upper roller 123 during lifting.
As shown in fig. 2 and 4, the roller group further includes side wheels 125, and the side wheels 125 are rotatably disposed on the frame 121 and are engaged with the lateral surfaces of the guide rail 11 in the width direction to roll along the extending direction of the guide rail 11. The side wheel 125 includes a wheel axle 1251 and a guide roller 1252 mounted on the wheel axle 1251, the wheel axle 1251 is connected with the guide roller 1252 by a bearing, the wheel axle 1251 is mounted on a bending piece 1253, the bending piece 1253 is U-shaped, the bending piece 1253 is fixed on the frame 121 by screws, and two ends of the wheel axle 1251 are fixed on the inner side wall of the bending piece 1253. The side wheels 125 are used to prevent the upper roller 123 and the lower roller 124 from moving left and right on the rail 11 in the direction of travel of the trolley hoist.
Specifically, four roller sets are disposed on each lifting device 12, each two roller sets are distributed in a row, and each two roller sets are disposed on two sides of the guide rail 11 in a rolling manner.
Compared with the prior art, the embodiment has the remarkable effects that: traction trolleys are arranged at two ends of the lifting device respectively, and in the material lifting process, the two traction trolleys can form redundancy protection, and the power loss of any traction trolley does not affect the traction of the lifting device; and when the connection between the adjacent lifting devices or between the lifting devices and the traction trolleys breaks and falls off, the two traction trolleys can limit each lifting device between the two lifting devices, so that the lifting devices are prevented from sliding down. According to the actual lifting construction condition, the number of the lifting devices connected to the guide rail is large or the distance between the lifting devices is large, so that the lifting devices are blocked when going up and down slopes or turning. According to the embodiment, the transition trolley is arranged on the connecting assembly, so that the length of the connecting plate is reduced, and the locking during ascending and descending slopes or turning is avoided. Thereby achieving the purposes of ensuring construction safety and improving working efficiency.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (2)
1. The trolley lifting device is characterized by comprising a lifting mechanism (1), wherein the lifting mechanism (1) comprises:
a guide rail (11);
the lifting device (12), the lifting device (12) is matched with the guide rail (11) in a rolling way;
the two traction trolleys (13) are arranged on the guide rail (11) in a rolling manner, the two traction trolleys (13) are respectively positioned at two ends of the lifting device (12) along the extending direction of the guide rail (11) and are connected with the lifting device (12), one traction trolley (13) is used for pulling the lifting device (12) along the advancing direction of the trolley lifting device, and the other traction trolley (13) is used for pushing the lifting device (12);
the lifting device (12) comprises a frame (121), a roller group arranged on the frame (121) and an electric hoist (122) arranged on the frame (121), wherein the roller group is arranged on the guide rail (11) in a rolling way, and the two traction trolleys (13) drive the lifting device (12) to move through the frame (121);
the trolley lifting device further comprises a material lifting appliance (2), the material lifting appliance (2) is connected with the electric hoist (122) in a hanging mode, the material lifting appliance (2) comprises a support (21), a plurality of clamping claw parts are arranged on the support (21), and the clamping claw parts are all used for being connected with the lifting box (3) in a hanging mode;
the trolley lifting device further comprises a guide mechanism, wherein the guide mechanism comprises a guide rod (4) and a guide hole (5) which can be in plug-in fit with the guide rod (4), one of the guide rod (4) and the guide hole (5) is arranged on the bracket (21), and the other of the guide rod (4) and the guide hole (5) is arranged on the lifting box (3);
the clamping jaw part comprises a telescopic driving piece (22) and a clamping jaw (23), a first end of the clamping jaw (23) is pivoted with the telescopic driving piece (22), a second end of the clamping jaw (23) is used for being hung with the hanging box (3), and the middle part of the clamping jaw (23) is pivoted with the bracket (21);
the two lifting mechanisms (1) are parallel to the guide rails (11) and are arranged at intervals along the horizontal direction, and each lifting mechanism (1) comprises a plurality of lifting devices (12);
in each lifting mechanism (1), a plurality of lifting devices (12) are positioned between two traction trolleys (13), a plurality of racks (121) are connected with each other, the two racks (121) positioned at the outer end are respectively connected with the two traction trolleys (13), and at least two electric hoists (122) of the lifting devices (12) are hung with the material lifting appliance (2);
the lifting mechanism (1) further comprises a connecting component (14), two adjacent frames (121) are connected through the connecting component (14), and the frames (121) at the end part and the traction trolley (13) are connected through the connecting component (14) along the extending direction of the guide rail (11);
the roller set comprises an upper roller (123) and a lower roller (124) which are rotatably arranged on the frame (121), the upper roller (123) and the lower roller (124) are respectively in rolling fit with the upper surface and the lower surface of the guide rail (11), and the upper roller (123) and the lower roller (124) roll along the extending direction of the guide rail (11);
the roller set further comprises side wheels (125), the side wheels (125) are rotatably arranged on the frame (121), the side wheels (125) are in rolling fit with two lateral surfaces of the guide rail (11) in the width direction, and the side wheels (125) roll along the extending direction of the guide rail (11).
2. Trolley handling device according to claim 1, characterized in that the number of roller sets provided on each of the handling devices (12) is four, four roller sets being distributed in pairs and in rows, two rows of roller sets being arranged rolling on both sides of the guide rail (11) in the width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910549044.2A CN110171771B (en) | 2019-06-24 | 2019-06-24 | Trolley overhead hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910549044.2A CN110171771B (en) | 2019-06-24 | 2019-06-24 | Trolley overhead hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110171771A CN110171771A (en) | 2019-08-27 |
| CN110171771B true CN110171771B (en) | 2024-01-02 |
Family
ID=67698591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910549044.2A Active CN110171771B (en) | 2019-06-24 | 2019-06-24 | Trolley overhead hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110171771B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504398A (en) * | 2002-12-05 | 2004-06-16 | ��ɭ����е�������Ϲ�˾���������ι� | Mobile lifting device |
| CN101462672A (en) * | 2009-01-12 | 2009-06-24 | 武汉理工大学 | Big elevating capacity and big elevating height hoisting crane |
| CN201338911Y (en) * | 2009-01-12 | 2009-11-04 | 武汉理工大学 | Lifting cane with large lifting capacity and great lifting height |
| CN207827703U (en) * | 2017-12-13 | 2018-09-07 | 南京石诚井巷装备有限责任公司 | Electrical haulage engaged transmission force piece transfer device |
| CN208166418U (en) * | 2018-04-20 | 2018-11-30 | 中交第三航务工程局有限公司 | A kind of tackling system of Through Steel case Arch Bridge Construction cable crane |
| CN109573831A (en) * | 2017-09-28 | 2019-04-05 | 莫尔许可管理有限公司 | Lifting equipment for raising and decline weight |
| CN210176324U (en) * | 2019-06-24 | 2020-03-24 | 法兰泰克重工股份有限公司 | Trolley hoisting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0300638D0 (en) * | 2003-03-10 | 2003-03-10 | Kahlman Produkter Ab | Load hoist arrangement |
-
2019
- 2019-06-24 CN CN201910549044.2A patent/CN110171771B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504398A (en) * | 2002-12-05 | 2004-06-16 | ��ɭ����е�������Ϲ�˾���������ι� | Mobile lifting device |
| CN101462672A (en) * | 2009-01-12 | 2009-06-24 | 武汉理工大学 | Big elevating capacity and big elevating height hoisting crane |
| CN201338911Y (en) * | 2009-01-12 | 2009-11-04 | 武汉理工大学 | Lifting cane with large lifting capacity and great lifting height |
| CN109573831A (en) * | 2017-09-28 | 2019-04-05 | 莫尔许可管理有限公司 | Lifting equipment for raising and decline weight |
| CN207827703U (en) * | 2017-12-13 | 2018-09-07 | 南京石诚井巷装备有限责任公司 | Electrical haulage engaged transmission force piece transfer device |
| CN208166418U (en) * | 2018-04-20 | 2018-11-30 | 中交第三航务工程局有限公司 | A kind of tackling system of Through Steel case Arch Bridge Construction cable crane |
| CN210176324U (en) * | 2019-06-24 | 2020-03-24 | 法兰泰克重工股份有限公司 | Trolley hoisting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110171771A (en) | 2019-08-27 |
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