CN216038289U

CN216038289U - Liftable trackless portal crane

Info

Publication number: CN216038289U
Application number: CN202122557164.2U
Authority: CN
Inventors: 高超
Original assignee: Xinhua Heavy Industry Shanghai Co ltd
Current assignee: Xinhua Heavy Industry Shanghai Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-03-15
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a liftable trackless portal crane, which relates to the field of portal cranes and comprises a crossbeam, wherein the bottoms of the front side and the rear side of the crossbeam are fixedly connected with convex beams, the lower parts of the front side and the rear side of the crossbeam are respectively provided with an upper groove, the middle of the upper surface of each convex beam is provided with a lower groove, the lower surfaces of the two ends of the crossbeam are respectively fixedly connected with a lifting plate, the right side of each lifting plate is fixedly connected with a driving motor, the output end of each driving motor is fixedly connected with a lead screw, the surface of each lead screw is in threaded connection with a movable block, the upper part of the inner wall of each movable block is rotatably connected with a transverse roller, the middle of the inner wall of each movable block is rotatably connected with a vertical roller, the transverse rollers abut against the upper grooves, the vertical rollers abut against the lower grooves, the lifting plates are fixedly connected with the convex plates, the outer sides of the convex plates are slidably connected with a support, and the inner sides of the support are provided with slide rails. According to the utility model, the friction between the moving block and the cross beam is reduced by arranging the transverse idler wheels and the vertical idler wheels, so that the driving motor does not need to additionally output higher power.

Description

Liftable trackless portal crane

Technical Field

The utility model relates to the field of portal cranes, in particular to a liftable trackless portal crane.

Background

The gantry crane is a variant of a bridge crane and is also called a gantry crane. The device is mainly used for loading and unloading outdoor goods yards, stockyards and bulk goods. The portal crane has the characteristics of high site utilization rate, large operation range, wide application range, strong universality and the like, and is widely used in port goods yards. The metal structure of the device is like a door-shaped frame, two support legs are arranged under a bearing main beam and can directly walk on a track on the ground, and overhanging cantilever beams can be arranged at the two ends of the main beam.

Current portal crane adopts the slide rail to transmit when the handling goods, but when the goods is too heavy, and the friction between the slide rail is too big, can influence freight's speed, also can increase transmission motor's burden, causes the cost to increase, simultaneously, need adjust the maximum height that portal crane hoisted sometimes, but the device of current height-adjusting is comparatively complicated. In order to solve the above problems, it is necessary to provide a liftable trackless portal crane.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, provide a liftable trackless portal crane, this technical scheme has solved the current portal crane who provides among the above-mentioned background art and when the handling goods, adopts the slide rail to transmit, but when the goods is too heavy, and the friction between the slide rail is too big, can influence the speed of freight, also can increase the burden of transmission motor, causes the problem that the cost is increased and the device of adjusting is carried out to the maximum height that portal crane hoisted is comparatively complicated.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

the utility model provides a liftable trackless gantry crane, includes the crossbeam, the equal fixedly connected with protruding roof beam in both sides bottom around the crossbeam, the upper groove has all been seted up to both sides below around the crossbeam, has seted up the low groove in the middle of the protruding roof beam upper surface, the equal fixedly connected with lifter plate in crossbeam both ends lower surface, right side the right side fixedly connected with driving motor of lifter plate, driving motor's output fixedly connected with lead screw, lead screw surface threaded connection have the movable block, and movable block inner wall top is rotated and is connected with the gyro wheel, rotates in the middle of the movable block inner wall to be connected with perpendicular gyro wheel, and the gyro wheel butt is erected in the low groove in the last recess to horizontal gyro wheel butt.

Preferably, the equal fixedly connected with flange in both sides around the lifter plate, flange outside sliding connection has the support, and the slide rail has been seted up to the support inboard, and flange sliding connection is in the slide rail, support bottom fixedly connected with backup pad, and the backup pad bottom is rotated and is connected with a plurality of pulley.

Preferably, the pulleys are arranged on the lower surface of the support plate at equal intervals.

Preferably, the middle of the outer side of the lifting plate is fixedly connected with a rectangular block, the middle of the bottom of the rectangular block is in threaded connection with a screw rod, a fixing plate is rotatably connected below the screw rod, and the inner side of the fixing plate is fixedly connected below the support.

Preferably, both ends of the lower groove are fixedly connected with lower stop blocks, and both ends of the upper groove are fixedly connected with upper stop blocks.

Preferably, the support uses the central axis of the lifting plate as a symmetry axis, and is symmetrically distributed on two sides of the lifting plate.

Preferably, the cross-sectional shape of the cross beam is an inverted T shape.

Compared with the prior art, the utility model provides a liftable trackless portal crane, which has the following beneficial effects:

1. through the arrangement of the transverse idler wheels and the vertical idler wheels, the transverse idler wheels and the vertical idler wheels are abutted with the cross beam, so that the moving block is changed from being in direct contact with the cross beam to being in rolling contact with the cross beam, no matter multiple goods are hoisted at the bottom of the moving block, friction between the moving block and the cross beam cannot be increased, a driving motor does not need to output higher power additionally, extra electric power is consumed, cost is reduced, and meanwhile, an upper stop block and a lower stop block are arranged, so that the moving block is prevented from derailing from an upper groove and a lower groove when sliding to two ends;

2. through setting up screw rod and rectangular piece, twist and move the screw rod, can control the rising and the decline of lifter plate to change the movable block and lift the maximum height of goods, this structure is very simple, convenient operation, and the practicality is very high, and very firm, hardly breaks down.

Drawings

FIG. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

FIG. 3 is a schematic diagram of a moving block structure according to the present invention;

fig. 4 is a schematic view of the stent structure of the present invention.

The reference numbers in the figures are:

101. a lower groove; 102. a cross beam; 103. a convex beam; 104. an upper groove; 105. an upper stop block; 106. a lower stop block; 107. a screw rod; 108. a moving block; 109. a transverse roller; 110. a vertical roller;

201. a lifting plate; 202. a convex plate; 203. a support; 204. a support plate; 205. a pulley; 206. a drive motor; 207. a rectangular block; 208. a screw; 209. a fixing plate; 210. a slide rail.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-4, the liftable trackless portal crane comprises a cross beam 102, wherein the bottoms of the front side and the rear side of the cross beam 102 are fixedly connected with convex beams 103, upper grooves 104 are respectively formed below the front side and the rear side of the cross beam 102, a lower groove 101 is formed in the middle of the upper surface of the convex beam 103, the lower surfaces of the two ends of the cross beam 102 are fixedly connected with lifting plates 201, the right side of the lifting plate 201 is fixedly connected with a driving motor 206, the output end of the driving motor 206 is fixedly connected with a lead screw 107, the surface of the lead screw 107 is in threaded connection with a moving block 108, a transverse roller 109 is rotatably connected above the inner wall of the moving block 108, a vertical roller 110 is rotatably connected in the middle of the inner wall of the moving block 108, the transverse roller 109 abuts against the upper groove 104, and the vertical roller 110 abuts against the lower groove 101;

referring to fig. 1, 2 and 3, when goods are transported, firstly, an electric hoist is installed at the bottom of a moving block 108, the goods are hoisted by the electric hoist, after the goods are hoisted, a driving motor 206 operates to drive a lead screw 107 to rotate, then the moving block 108 moves along the lead screw 107 to drive the goods to move, a transverse roller 109 and a vertical roller 110 are respectively abutted to an upper groove 104 and a lower groove 101, the transverse roller 109 and the vertical roller 110 respectively roll in the upper groove 104 and the lower groove 101 along with the movement of the moving block 108, and therefore the moving block 108 can move along a cross beam 102;

referring to fig. 1 and 4, when the height of the moving block 108 is adjusted, the screw 208 is screwed, the rectangular block 207 moves upward, the lifting plate 201 is driven to move upward, the lifting plate 201 moves along the slide rail 210 of the bracket 203 by means of the convex plate 202, the cross beam 102 is driven to ascend, and then the moving block 108 also ascends;

referring to fig. 1 and 4, when the height of the moving block 108 is adjusted, the screw 208 is screwed reversely, the rectangular block 207 moves downwards, the lifting plate 201 is driven to move downwards, the lifting plate 201 moves along the slide rail 210 of the bracket 203 by means of the convex plate 202, the cross beam 102 is driven to move downwards, and then the moving block 108 also moves downwards.

Specifically, both sides are the fixedly connected with flange 202 around the lifter plate 201, and flange 202 outside sliding connection has support 203, and slide rail 210 has been seted up to support 203 inboard, and flange 202 sliding connection is in slide rail 210, support 203 bottom fixedly connected with backup pad 204, and backup pad 204 bottom is rotated and is connected with a plurality of pulley 205.

The pulleys 205 are arranged at equal intervals on the lower surface of the support plate 204.

The middle of the outer side of the lifting plate 201 is fixedly connected with a rectangular block 207, the middle of the bottom of the rectangular block 207 is in threaded connection with a screw 208, a fixing plate 209 is rotatably connected below the screw 208, and the inner side of the fixing plate 209 is fixedly connected below the support 203.

The lower groove 101 has a lower stopper 106 fixedly connected to both ends thereof, and the upper groove 104 has an upper stopper 105 fixedly connected to both ends thereof.

The supports 203 are symmetrically distributed on two sides of the lifting plate 201 by taking the central axis of the lifting plate 201 as a symmetry axis.

The cross-sectional shape of the beam 102 is an inverted T-shape.

The working principle and the using process of the utility model are as follows: through the arrangement of the transverse rollers 109 and the vertical rollers 110, the transverse rollers 109 and the vertical rollers 110 are abutted against the cross beam 102, so that the original direct contact of the moving block 108 with the cross beam 102 is changed into the rolling contact with the cross beam 102, no matter multiple goods are hoisted at the bottom of the moving block 108, the friction between the moving block 108 and the cross beam 102 cannot be increased, the driving motor 206 does not need to additionally output higher power, extra electric power is consumed, and the cost is reduced; through setting up screw rod 208 and rectangular 207, twist screw rod 208, can control the rising and the decline of lifter plate 201 to change the maximum height that the movable block 108 hoisted the goods, this structure is very simple, convenient operation, and the practicality is very high, and very firm, hardly breaks down.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A liftable trackless portal crane is characterized by comprising a cross beam (102), the improved structure of the automobile seat is characterized in that convex beams (103) are fixedly connected to the bottoms of the front side and the rear side of the cross beam (102), upper grooves (104) are formed in the lower portions of the front side and the rear side of the cross beam (102), lower grooves (101) are formed in the middle of the upper surface of the convex beams (103), lifting plates (201) are fixedly connected to the lower surfaces of the two ends of the cross beam (102), driving motors (206) are fixedly connected to the right sides of the lifting plates (201), lead screws (107) are fixedly connected to the output ends of the driving motors (206), moving blocks (108) are connected to the surface of the lead screws (107) in a threaded mode, transverse rollers (109) are connected to the upper portions of the inner walls of the moving blocks (108) in a rotating mode, vertical rollers (110) are connected to the middle of the inner walls of the moving blocks (108), the transverse rollers (109) are connected to the upper grooves (104) in an abutting mode, and the vertical rollers (110) are connected to the lower grooves (101).

2. A liftable trackless portal crane according to claim 1, wherein: the lifting plate is characterized in that the front side and the rear side of the lifting plate (201) are fixedly connected with the convex plates (202), the outer sides of the convex plates (202) are slidably connected with the supports (203), the inner sides of the supports (203) are provided with the sliding rails (210), the convex plates (202) are slidably connected in the sliding rails (210), the bottoms of the supports (203) are fixedly connected with the supporting plate (204), and the bottoms of the supporting plate (204) are rotatably connected with the pulleys (205).

3. A liftable trackless portal crane according to claim 2, wherein: the pulleys (205) are arranged on the lower surface of the support plate (204) at equal intervals.

4. A liftable trackless portal crane according to claim 1, wherein: the middle of the outer side of the lifting plate (201) is fixedly connected with a rectangular block (207), the middle of the bottom of the rectangular block (207) is in threaded connection with a screw rod (208), a fixing plate (209) is rotatably connected below the screw rod (208), and the inner side of the fixing plate (209) is fixedly connected below the support (203).

5. A liftable trackless portal crane according to claim 1, wherein: both ends of the lower groove (101) are fixedly connected with lower stop blocks (106), and both ends of the upper groove (104) are fixedly connected with upper stop blocks (105).

6. A liftable trackless portal crane according to claim 2, wherein: the support (203) uses the central axis of the lifting plate (201) as a symmetry axis, and is symmetrically distributed on two sides of the lifting plate (201).

7. A liftable trackless portal crane according to claim 1, wherein: the cross section of the cross beam (102) is in an inverted T shape.