CN210176324U

CN210176324U - Trolley hoisting device

Info

Publication number: CN210176324U
Application number: CN201920953454.9U
Authority: CN
Inventors: Xianghuan Feng; 冯向欢; Duo Zhang; 张多; Xuelei Qin; 秦薛磊
Original assignee: Eurocrane Heavy Industry Co Ltd
Current assignee: Eurocrane Heavy Industry Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-03-24
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a dolly overhead hoist, including handling mechanism, handling mechanism includes: a guide rail; the lifting device is matched with the guide rail in a rolling way; the two traction trolleys are arranged on the guide rail in a rolling mode and are respectively located on two sides of the lifting device along the extending direction of the guide rail, and the two traction trolleys are connected with the lifting device. And one traction trolley is used for pulling the hoisting device, and the other traction trolley is used for pushing the hoisting device along the advancing direction of the trolley hoisting device. Along the advancing direction of the trolley hoisting device, the traction trolleys are arranged at the front end and the rear end of the hoisting device, so that when the hoisting device is broken or falls off in the hoisting operation process, the slope slipping accident is avoided.

Description

Trolley hoisting device

Technical Field

The utility model relates to a tunnel construction material handling field especially relates to a dolly overhead hoist.

Background

With the continuous development of road construction in China, the application of tunnels is very common in urban subway, railway traffic and highway traffic. In tunnel construction, the material handling work all has great influence to engineering progress and construction safety. At present, a precast concrete segment supporting method is adopted in some tunnel construction, and stones and soil generated in the tunneling process are conveyed out of a tunnel by using track lifting equipment and the segment is conveyed into the tunnel for installation. In the daily construction process, due to the fact that equipment is frequently used and the space in a tunnel is narrow and difficult to overhaul, due to the fact that parts are broken, the trolley slips off the slope in the hoisting process. Meanwhile, the hoisting devices connected to the guide rails are large in number or large in distance, so that the hoisting devices are stuck when going up and down a slope or turning a corner, and the engineering progress and the construction safety are affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dolly overhead hoist, when the material handling of tunnel construction, avoid because of hoisting accessory is in operation in-process connection fracture or drop and take place the swift current slope accident.

To achieve the purpose, the utility model adopts the following technical proposal:

a trolley lifting device comprises a lifting mechanism, wherein the lifting mechanism comprises:

a guide rail;

the lifting device is matched with the guide rail in a rolling way;

the two traction trolleys are arranged on the guide rail in a rolling mode and are connected with the lifting device along the extending direction of the guide rail, one traction trolley is used for pulling the lifting device, and the other traction trolley is used for pushing the lifting device along the advancing direction of the trolley lifting device.

Furthermore, hoisting accessory includes the frame, set up in wheel train in the frame, and set up in electric block in the frame, the wheel train roll set up in on the guide rail, two the small tractor all passes through the frame drive hoisting accessory motion.

Further, dolly overhead hoist still includes the material hoist, the material hoist with electric block articulates, the material hoist includes the support, be equipped with a plurality of claw portions on the support, it is a plurality of claw portion all is used for articulating with the hanging box.

Furthermore, the trolley lifting device further comprises a guide mechanism, the guide mechanism comprises a guide rod and a guide hole matched with the guide rod in an inserted mode, one of the guide rod and the guide hole is arranged on the support, and the other of the guide rod and the guide hole is arranged on the lifting box.

Furthermore, the clamping jaw part comprises a telescopic driving part and a clamping jaw, the first end of the clamping jaw is pivoted with the telescopic driving part, the second end of the clamping jaw is used for being articulated with the hanging box, and the middle part of the clamping jaw is pivoted with the support.

Furthermore, 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 arranged between two traction trolleys and are mutually connected, two racks at the outer ends are respectively connected with the two traction trolleys, and the electric hoists of at least two lifting devices are hung on the material lifting appliance.

Furthermore, the lifting mechanism further comprises a connecting assembly, the two adjacent racks are connected through the connecting assembly, and the racks located at the end parts and the traction trolley are connected through the connecting assembly along the extending direction of the guide rail.

Further, the roller group includes an upper roller and a lower roller which are rotatably arranged on the rack, the upper roller and the lower roller are respectively matched with the upper surface and the lower surface of the guide rail in a rolling manner, and the upper roller and the lower roller roll along the extending direction of the guide rail.

Furthermore, the roller group also comprises side wheels, and the side wheels are rotatably arranged on the rack, are in rolling fit with the two side surfaces of the guide rail in the width direction and roll along the extending direction of the guide rail.

Furthermore, the number of the roller groups arranged on each lifting device is four, the four roller groups are distributed in two rows, and the two rows of the roller groups are respectively arranged on two sides of the guide rail in the width direction in a rolling manner.

The utility model has the advantages that:

the utility model provides a trolley lifting device, which is characterized in that traction trolleys are respectively arranged at two ends of a lifting device, in the material lifting process, the two traction trolleys can form redundancy protection, and the traction of the lifting device is not influenced when the power of any one traction trolley is lost; and when the connection fracture and the falling condition occur between the adjacent hoisting devices or between the hoisting devices and the traction trolleys, the two traction trolleys can limit each hoisting device between the two hoisting devices, so that the hoisting devices are prevented from sliding down the slope. Thereby achieving the purposes of ensuring the construction safety and improving the working efficiency.

Drawings

FIG. 1 is a front view of a dolly lifting device according to an embodiment of the present invention;

FIG. 2 is a left side view of a dolly lifting device in an embodiment of the invention;

FIG. 3 is a top view of a material spreader in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a side wheel in an embodiment of the present invention;

fig. 5 is a schematic diagram of a connection assembly according to an embodiment of the present invention.

Wherein:

1. a hoisting mechanism; 11. a guide rail; 12. a hoisting 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. bending a piece; 13. a tractor; 14. a connecting assembly; 141. connecting blocks; 142. a connecting plate; 143. a transition trolley; 2. a material sling; 21. a support; 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 bar; 5. and (4) a guide hole.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

As shown in fig. 1, the 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 matched with the hoisting device 12 and the traction trolley 13 in a rolling way, and plays roles in guiding direction and bearing load; the hoisting device 12 is matched with the guide rail 11 in a rolling way and is used for hoisting materials; the two tractor trolleys 13 are arranged on the guide rail 11 in a rolling mode, the two tractor trolleys 13 are located at two ends of the lifting device 12 respectively along the extending direction of the guide rail 11, the two tractor trolleys 13 are connected with the lifting device 12, one tractor trolley 13 is used for pulling the lifting device 12, and the other tractor trolley 13 is used for pushing the lifting device 12 along the advancing direction of the trolley lifting device. The two ends of the lifting device 12 are respectively provided with the traction trolleys 13, the two traction trolleys 13 can form redundant protection in the material lifting process, and the traction of the lifting device 12 is not influenced when the power of any one traction trolley 13 is lost; and when the connection between the adjacent hoisting devices 12 or between the hoisting devices 12 and the traction trolley 13 is broken or falls off, the two traction trolleys 13 can limit each hoisting device 12 between the two hoisting devices, so that the hoisting devices 12 are prevented from slipping down the slope.

As shown in fig. 1 and 2, the lifting device 12 includes a frame 121, a roller set and an electric hoist 122. The frame 121 serves as a supporting shell of the hoisting device 12, and is used for mounting a roller train and connecting 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 manner, and the electric hoist 122 is used for lifting materials; the roller group is arranged on the guide rail 11 in a rolling manner and rolls along the extending direction of the guide rail 11. Both bogies 13 are connected to the frame 121 and drive the hoisting 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 claw portions are arranged on the support 21, and the claw portions are all used for being connected with the lifting box 3 in a hanging mode. In this embodiment, the support 21 is a square steel structure support, and four corners of the support 21 are provided with four lifting points, 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 support 21, and the number of the clamping claw parts in other embodiments can be determined according to the actual lifting condition. The grabbing ends of the three clamping claw parts are arranged in an isosceles triangle, so that three acting points on the hanging box 3 are uniformly stressed during lifting.

The trolley hoisting device further comprises a guide mechanism, the guide mechanism comprises a guide rod 4 and a guide hole 5 which can be matched with the guide rod 4 in an inserted mode, one of the guide rod 4 and the guide hole 5 is arranged on the support 21, and the other is arranged on the hoisting 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 inserted into and matched with the guide hole 5. Through setting up guide bar 4 and guiding hole 5, accurate, the swift arrival preset position when can make material hoist 2 descend and snatch hanging box 3.

Specifically, the claw portion includes a telescopic driving member 22 and a claw 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 claw 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 hooked with the lifting lug 31 on the hanging box 3, the middle part of the claw 23 is pivoted with the support 21, and the claw 23 can rotate around the pivoting point of the middle part. Of course, according to the actual structural features of the jaw portion on the bracket 21, a connecting plate 24 may be disposed between the telescopic driving member 22 and the jaw 23, a first end of the connecting plate 24 is pivotally connected to the telescopic driving member 22, and a second end of the connecting plate 24 is pivotally connected to the jaw 23. In this embodiment, the material spreader 2 further includes a buffer 25 and a position-limiting device 26. Wherein, one end of the buffer 25 is fixed on the bracket 21, and the other end can be contacted with the upper surface of the hanging box 3, thereby playing the roles of buffering and limiting the descending distance of the material lifting appliance 2; the limiting device 26 is arranged on the guide rod 4, the bottom of the limiting device 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 hoisted, the material lifting appliance 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 reaching the preset position, and the material lifting appliance 2 does not descend at the moment, so that the limiting device 26 arranged on the guide rod 4 is in contact with the upper end face of the lifting box 3 and limits the descending distance of the material lifting appliance 2. It will be appreciated that the second end of the jaw 23 is hook-shaped, and the push rod of the telescopic driving member 22 drives the jaw 23 to rotate around the middle pivot point thereof, so that the second end of the jaw 23 hooks the lifting lug 31 of the hanging box 3.

As shown in fig. 1 and 2, the number of the lifting mechanisms 1 is two, the 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 arranged between two traction trolleys 13, a plurality of frames 121 are connected with each other, the two frames 121 arranged at the outer ends are respectively connected with the two traction trolleys 13, and electric hoists 122 of at least two lifting devices 12 are connected with a material lifting appliance 2 in a hanging mode. The electric block 122 with two hoisting devices 12 on the preferred every handling mechanism 1 of this embodiment articulates with material hoist 2, and the electric block 122 of four hoisting devices 12 articulates with the lifting point that sets up on the support 21 four corners respectively, makes hanging box 3 safe and stable when the handling.

As shown in fig. 1 and 5, the lifting mechanism 1 further includes a connecting assembly 14, and the two adjacent frames 121 and the end frame 121 and the traction trolley 13 are connected through the connecting assembly 14. The connecting assembly 14 includes two connecting blocks 141 and a connecting plate 142, and the connecting 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, and the two connecting blocks 141 are respectively pivoted with the adjacent frames 121 or the two connecting blocks 141 are respectively pivoted with the frame 121 and the traction trolley 13 at the end part. The coupling assembly 14 allows the lifting device 12 and the wagon 13 to pass smoothly up and down the track 11 and through turns. When the distance between two lifting devices 12 or the distance between the lifting device 12 and the traction trolley 13 is large, a plurality of connecting assemblies 14 can be connected in series in sequence to prolong the distance. Preferably, in the plurality of connecting assemblies 14 connected in series, a transition trolley 143 may be further disposed 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 to the connecting blocks 141 on two sides, so as to prevent the clamping when the lifting device 12 turns.

As shown in fig. 2, the roller set 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 in rolling engagement with the upper surface and the lower surface of the guide rail 11 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 on the upper roller 123 during lifting.

As shown in fig. 2 and 4, the roller set further includes a side wheel 125, and the side wheel 125 is rotatably disposed on the frame 121, and is in rolling engagement with the lateral side of the guide rail 11 in the width direction and rolls along the extending direction of the guide rail 11. The side wheel 125 comprises a wheel shaft 1251 and a guide roller 1252 installed on the wheel shaft 1251, the wheel shaft 1251 and the guide roller 1252 are connected through a bearing, the wheel shaft 1251 is installed on a bending piece 1253, the bending piece 1253 is U-shaped, the bending piece 1253 is fixed on the frame 121 through a screw, and two end parts of the wheel shaft 1251 are fixed with the inner side wall of the bending piece 1253. The side wheels 125 are used to prevent the upper and

lower rollers

123 and 124 from shifting left and right on the guide rail 11 in the advancing direction of the trolley hoist.

Specifically, each of the hoisting devices 12 is provided with four roller sets, each two of which are distributed in a row, and the two rows of roller sets are respectively arranged on two sides of the guide rail 11 in the width direction in a rolling manner.

Compared with the prior art, the embodiment has the remarkable effects that: traction trolleys are respectively arranged at two ends of the hoisting device, redundant protection can be formed by the two traction trolleys in the material hoisting process, and the traction on the hoisting device is not influenced when the power of any one traction trolley is lost; and when the connection fracture and the falling condition occur between the adjacent hoisting devices or between the hoisting devices and the traction trolleys, the two traction trolleys can limit each hoisting device between the two hoisting devices, so that the hoisting devices are prevented from sliding down the slope. According to the actual hoisting construction condition, the hoisting devices connected to the guide rail are large in number or large in distance, so that the hoisting devices are blocked when going up and down a slope or turning. This embodiment has reduced the length of connecting plate through set up the transition dolly on coupling assembling, blocks when avoiding going up the downhill path or turning. Thereby achieving the purposes of ensuring the construction safety and improving the working efficiency.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The trolley hoisting device is characterized by comprising a hoisting mechanism (1), wherein the hoisting 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;

two traction trolleys (13), two traction trolleys (13) all roll set up in on guide rail (11), follow the extending direction of guide rail (11), two traction trolleys (13) are located respectively hoisting accessory (12) both ends and all with hoisting accessory (12) are connected, follow dolly hoisting accessory's advancing direction, one traction trolleys (13) are used for the pulling hoisting accessory (12), another traction trolleys (13) are used for promoting hoisting accessory (12).

2. The trolley hoisting device of claim 1, wherein the hoisting device (12) comprises a frame (121), a roller set arranged on the frame (121), and an electric block (122) arranged on the frame (121), the roller set is arranged on the guide rail (11) in a rolling manner, and the two traction trolleys (13) drive the hoisting device (12) to move through the frame (121).

3. The trolley hoisting device according to claim 2, further comprising a material lifting appliance (2), wherein the material lifting appliance (2) is articulated with the electric hoist (122), the material lifting appliance (2) comprises a support (21), and a plurality of clamping claw parts are arranged on the support (21) and are used for being articulated with the hoisting box (3).

4. The trolley hoisting device according to claim 3, further comprising a guide mechanism, wherein the guide mechanism comprises a guide rod (4) and a guide hole (5) capable of being matched with the guide rod (4) in an inserted manner, one of the guide rod (4) and the guide hole (5) is arranged on the support (21), and the other of the guide rod (4) and the guide hole (5) is arranged on the hoisting box (3).

5. The trolley hoisting device according to claim 3, wherein the claw part comprises a telescopic driving part (22) and a claw (23), a first end of the claw (23) is pivoted with the telescopic driving part (22), a second end of the claw (23) is used for being hooked with the hoisting box (3), and the middle part of the claw (23) is pivoted with the bracket (21).

6. The trolley hoisting device of claim 3, wherein the number of the hoisting mechanisms (1) is two, the two guide rails (11) are arranged in parallel and at intervals along the horizontal direction, and each hoisting mechanism (1) comprises a plurality of hoisting devices (12);

in each lifting mechanism (1), a plurality of lifting devices (12) are arranged between two traction trolleys (13), a plurality of racks (121) are connected with each other, the two racks (121) arranged at the outer ends are respectively connected with the two traction trolleys (13), and the electric hoists (122) of at least two lifting devices (12) are hung on the material lifting appliance (2).

7. The trolley hoisting device as claimed in claim 6, wherein the hoisting mechanism (1) further comprises a connecting assembly (14), two adjacent frames (121) are connected through the connecting assembly (14), and the frames (121) at the end and the traction trolley (13) are connected through the connecting assembly (14) along the extending direction of the guide rail (11).

8. The trolley hoisting device as claimed in claim 2, wherein the roller set comprises an upper roller (123) and a lower roller (124) 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).

9. The trolley hoisting device as claimed in claim 2, wherein 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 side 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).

10. The trolley hoisting device according to claim 8 or 9, wherein the number of the roller groups arranged on each hoisting device (12) is four, the four roller groups are distributed in two rows, and the two rows of the roller groups are respectively arranged on two sides of the guide rail (11) in the width direction in a rolling manner.