CN210795569U

CN210795569U - Lightweight gantry crane

Info

Publication number: CN210795569U
Application number: CN201921490805.3U
Authority: CN
Inventors: 和辉; 和伟; 张西伟; 和西超; 王正茂
Original assignee: Shandong Shenzhou Machinery Co ltd
Current assignee: Shandong Shenzhou Machinery Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-06-19
Anticipated expiration: 2029-09-09

Abstract

The utility model belongs to the technical field of portal cranes, in particular to a lightweight portal crane, aiming at the problems that the base is not stably placed and the movement is inconvenient when the prior supporting leg is lifted, the following proposal is proposed, which comprises two bases, two supporting rods are fixedly arranged at the top of the base, the tops of the two supporting rods are all slidably sleeved with lifting rods, the top of the four lifting rods is fixedly provided with a main beam, the top of the main beam is provided with a crane trolley, the crane trolley is provided with a lifting mechanism, the bottom of the base is provided with a placing groove, a lifting plate is slidably arranged in the placing groove, the bottom of the lifting plate is uniformly rotated and provided with four to eight rollers, the utility model has simple structure and convenient use, can realize the stable placement of the base, ensure the stability when lifting, and can adjust the use height of the main beam simultaneously, the object with different heights can be better used for hoisting.

Description

Lightweight gantry crane

Technical Field

The utility model relates to a gantry crane technical field especially relates to a lightweight gantry 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. Through retrieval, patent document No. 201520529515.0 discloses a lightweight portal crane, which comprises a main beam, a guide rail is arranged on the upper surface of the main beam, a crane trolley is arranged on the guide rail, a double-layer winding drum is arranged on the crane trolley, a lifting mechanism is arranged on the lower part of the double-layer winding drum, a fixed plate A is connected on the lower left side of the main beam, a hinge rod is connected on the fixed plate A, a fixed plate B is connected on the lower end of the hinge rod, a hydraulic cylinder is arranged on the upper surface of the fixed plate B and connected to one hinge rod, a rigid supporting leg A is connected on the lower surface of the fixed plate B, a ground beam is connected on the lower end of the rigid supporting leg A, a traveling mechanism is arranged on the ground beam, a rigid supporting leg B is connected on the lower right side of the main beam, a supporting plate is arranged, the ground beam is provided with a traveling mechanism.

The base has the base to place insecure when the supporting leg goes up and down in the lightweight gantry crane that this patent provided, and has the inconvenient problem of removal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the supporting leg exists the base and places unstably when going up and down in the prior art, and has the shortcoming of inconvenient removal, and the lightweight gantry crane who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lightweight portal crane comprises two bases, wherein two support rods are fixedly installed at the tops of the bases, lifting rods are slidably sleeved at the tops of the two support rods, the same main beam is fixedly installed at the tops of the four lifting rods, a crane trolley is arranged at the top of the main beam, a lifting mechanism is arranged on the crane trolley, a placing groove is formed in the bottom of the base, a lifting plate is slidably installed in the placing groove, four to eight idler wheels are uniformly rotatably installed at the bottom of the lifting plate, extrusion rods are rotatably installed at the tops of the lifting plates, sliding blocks are rotatably installed at the tops of the two extrusion rods, two sliding grooves are formed in the inner wall of the top of the placing groove, the two sliding blocks are respectively slidably installed in the two sliding grooves, a hydraulic cylinder is started, the hydraulic cylinder slides to drive the extrusion plates to slide, the extrusion plates slide upwards to drive, because the cooperation of spring slides the slider and resets to drive the extrusion pole and rotate and remove, the extrusion pole drives the lifter plate and upwards slides, makes the gyro wheel break away from ground, makes the base firm support.

Preferably, one side fixed mounting of slider has the one end of spring, and the other end fixed mounting of spring has two first pulleys on the inner wall of standing groove on the inner wall of corresponding spout, and equal slidable mounting has the haulage rope on two first pulleys, and the one end fixed mounting of haulage rope is on the slider that corresponds, and the elasticity of spring can make the slider slide and reset, and the slider drives the stripper bar rotation removal that corresponds, thereby the one end of stripper bar rotates on the lifter plate and drives the lifter plate upwards to slide, and the lifter plate slides and drives the gyro wheel and break away from ground.

Preferably, the top fixed mounting of base has two dead levers, and one side that two dead levers are close to each other all rotates and installs the second pulley, and the one end of two haulage ropes all extends to the top of same base, and two haulage ropes sliding mounting respectively on two second pulleys, because the cooperation of second pulley can make the haulage rope pulling stripper plate.

Preferably, the top fixed mounting of base has the pneumatic cylinder, and fixed mounting has the stripper plate on the piston rod of pneumatic cylinder, has seted up two slide holes on the stripper plate, and two bracing pieces are slidable mounting respectively in two slide holes that correspond, and because the cooperation of pneumatic cylinder can the time the stripper plate drive the haulage rope and slide, the haulage rope can stimulate the slider and slide, and the slider drives the spring that corresponds and stretches out and draws back.

Preferably, one end of the traction rope is fixedly installed on the corresponding extrusion plate, a lifting groove is formed in the bottom of the lifting rod, the support rod is slidably installed in the corresponding lifting groove, the extrusion plate slides upwards to enable the extrusion plate to be in contact with the lifting rod, the extrusion plate extrudes the lifting rod upwards to enable the lifting rod to slide on the support rod, and therefore the using height of the main beam is adjusted.

In the utility model, the hydraulic cylinder is started, the hydraulic cylinder slides to drive the extrusion plate to slide, the extrusion plate slides upwards to drive the traction rope to move upwards, and the sliding reset is performed on the slider due to the cooperation of the first pulley and the second pulley, so that the extrusion rod is driven to rotate and move, the extrusion rod drives the lifting plate to slide upwards, the roller is separated from the ground, and the base is stably supported;

the extrusion plate slides upwards to enable the extrusion plate to be in contact with the lifting rod, and the extrusion plate extrudes the lifting rod upwards to enable the lifting rod to slide on the supporting rod, so that the use height of the main beam is adjusted;

the utility model discloses simple structure, convenient to use can realize stabilizing the placing to the base, ensures the stability when lifting by crane, can highly adjust the use of girder simultaneously, and the article of the not co-altitude of use that can be better lift by crane.

Drawings

Fig. 1 is a schematic structural view of a lightweight portal crane according to the present invention;

fig. 2 is a schematic side sectional view of a lightweight gantry crane according to the present invention;

fig. 3 is a schematic structural diagram of a part a of a lightweight gantry crane according to the present invention.

In the figure: the device comprises a base 1, a supporting rod 2, a lifting rod 3, a main beam 4, a crane trolley 5, a lifting mechanism 6, a placing groove 7, a lifting plate 8, a roller 9, an extrusion rod 10, a sliding groove 11, a sliding block 12, a spring 13, a first pulley 14, a traction rope 15, a fixed rod 16, a second pulley 17, a hydraulic cylinder 18 and an extrusion plate 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a lightweight portal crane comprises two bases 1, two support rods 2 are fixedly installed on the top of the base 1, lifting rods 3 are slidably sleeved on the tops of the two support rods 2, the top of each of the four lifting rods 3 is fixedly installed with a main beam 4, a crane trolley 5 is arranged on the top of the main beam 4, a lifting mechanism 6 is arranged on the crane trolley 5, a placing groove 7 is formed in the bottom of the base 1, a lifting plate 8 is slidably installed in the placing groove 7, four to eight rollers 9 are uniformly and rotatably installed on the bottom of the lifting plate 8, extrusion rods 10 are rotatably installed on the top of the lifting plate 8, slide blocks 12 are rotatably installed on the tops of the two extrusion rods 10, two slide grooves 11 are formed in the inner wall of the top of the placing groove 7, the two slide blocks 12 are respectively and slidably installed in the two slide grooves 11, a hydraulic cylinder, the extrusion plate 19 slides upwards to drive the traction rope 15 to move upwards, and due to the cooperation of the first pulley 14 and the second pulley 17, the sliding block 12 is reset by sliding due to the cooperation of the spring 13, so that the extrusion rod 10 is driven to rotate and move, the extrusion rod 10 drives the lifting plate 8 to slide upwards, the roller 9 is separated from the ground, and the base 1 is stably supported.

The utility model discloses in, one side fixed mounting of slider 12 has the one end of spring 13, spring 13's other end fixed mounting is on the inner wall of the spout 11 that corresponds, slidable mounting has two first pulleys 14 on standing groove 7's the inner wall, equal slidable mounting has haulage rope 15 on two first pulleys 14, haulage rope 15's one end fixed mounting is on the slider 12 that corresponds, spring 13's elasticity can make slider 12 slide and reset, slider 12 drives the ejector pin 10 rotation removal that corresponds, thereby the one end of ejector pin 10 rotates on lifter 8 and drives 8 upsets of lifter plate, lifter plate 8 slides and drives gyro wheel 9 and breaks away from ground.

The utility model discloses in, base 1's top fixed mounting has two dead levers 16, and one side that two dead levers 16 are close to each other all rotates and installs second pulley 17, and two haulage rope 15's one end all extends to same base 1's top, and two haulage rope 15 difference slidable mounting on two second pulleys 17, because the cooperation of second pulley 17 can make haulage rope 15 stimulate stripper plate 19.

The utility model discloses in, base 1's top fixed mounting has pneumatic cylinder 18, and fixed mounting has stripper plate 19 on pneumatic cylinder 18's the piston rod, has seted up two slide holes on the stripper plate 19, and two bracing pieces 2 are slidable mounting respectively in two slide holes that correspond, because stripper plate 19 drives haulage rope 15 and slides when pneumatic cylinder 18's cooperation can, haulage rope 15 can stimulate slider 12 and slide, and slider 12 drives the spring 13 that corresponds and stretches out and draws back.

The utility model discloses in, the one end fixed mounting of haulage rope 15 is on the stripper plate 19 that corresponds, and the lift groove has been seted up to the bottom of

lifter

3, and 2 slidable mounting of bracing piece are in the lift inslot that corresponds, and stripper plate 19 upwards slides and makes

stripper plate

19 and 3 contacts of lifter, and stripper plate 19 upwards extrudes lifter 3, makes lifter 3 slide on bracing piece 2 to make girder 4's use highly adjust.

Example two

Referring to fig. 1-3, a lightweight portal crane comprises two bases 1, two support rods 2 are fixedly installed at the top of each base 1 through welding, lifting rods 3 are slidably sleeved at the tops of the two support rods 2, the same main beam 4 is fixedly installed at the tops of the four lifting rods 3 through welding, a crane trolley 5 is arranged at the top of the main beam 4, a lifting mechanism 6 is arranged on the crane trolley 5, a placing groove 7 is formed at the bottom of each base 1, a lifting plate 8 is slidably installed in the placing groove 7, four to eight idler wheels 9 are uniformly and rotatably installed at the bottom of the lifting plate 8, extrusion rods 10 are rotatably installed at the tops of the lifting plates 8, sliders 12 are rotatably installed at the tops of the two extrusion rods 10, two sliding grooves 11 are formed in the inner wall of the top of the placing groove 7, the two sliders 12 are respectively and slidably installed in the two sliding grooves 11, a hydraulic cylinder 18 is, the extrusion plate 19 slides upwards to drive the traction rope 15 to move upwards, and due to the cooperation of the first pulley 14 and the second pulley 17, the sliding block 12 is reset by sliding due to the cooperation of the spring 13, so that the extrusion rod 10 is driven to rotate and move, the extrusion rod 10 drives the lifting plate 8 to slide upwards, the roller 9 is separated from the ground, and the base 1 is stably supported.

The utility model discloses in, one side of slider 12 is passed through welded fastening and is installed the one end of spring 13, the other end of spring 13 passes through welded fastening and installs on the inner wall of the spout 11 that corresponds, slidable mounting has two first pulleys 14 on the inner wall of standing groove 7, equal slidable mounting has haulage rope 15 on two first pulleys 14, welded fastening is passed through to haulage rope 15's one end and installs on the slider 12 that corresponds, spring 13's elasticity can make slider 12 slide and reset, slider 12 drives the extrusion stem 10 rotational movement that corresponds, thereby the one end of extrusion stem 10 rotates on lifter 8 and drives lifter plate 8 upwards to slide, lifter plate 8 slides and drives gyro wheel 9 and breaks away from ground.

The utility model discloses in, there are two dead levers 16 at base 1's top through welded fastening, and two dead levers 16 one side that are close to each other all rotate and install second pulley 17, and the one end of two haulage ropes 15 all extends to same base 1's top, and two haulage ropes 15 respectively slidable mounting on two second pulleys 17, because the cooperation of second pulley 17 can make haulage rope 15 stimulate stripper plate 19.

The utility model discloses in, base 1's top has pneumatic cylinder 18 through welded fastening installation, installs stripper plate 19 through welded fastening installation on pneumatic cylinder 18's the piston rod, has seted up two slide holes on the stripper plate 19, and two bracing pieces 2 are respectively slidable mounting in two slide holes that correspond, because stripper plate 19 drives haulage rope 15 and slides when pneumatic cylinder 18's cooperation can be, haulage rope 15 can stimulate slider 12 and slide, and slider 12 drives the spring 13 that corresponds and stretches out and draws back.

The utility model discloses in, welded fastening is passed through to the one end of haulage rope 15 and is installed on the stripper plate 19 that corresponds, and the lift groove has been seted up to the bottom of

lifter

stripper plate

19 and 3 contacts of lifter, and stripper plate 19 upwards extrudes lifter 3, makes lifter 3 slide on bracing piece 2 to make the use height of girder 4 adjust.

The working principle is as follows: when the lifting device is used, the hydraulic cylinder 18 is started, the piston rod of the hydraulic cylinder 18 extends to slide to drive the extrusion plate 19 to slide, the extrusion plate 19 slides upwards to drive the traction ropes 15 to move upwards, the sliding block 12 is slid and reset due to the cooperation of the first pulley 14 and the second pulley 17, the sliding block 12 drives the extrusion rod 10 to rotate and move, the extrusion rod 10 drives the lifting plate 8 to slide upwards, the roller 9 is separated from the ground, the base 1 is stably supported, the extrusion plate 19 slides upwards to enable the extrusion plate 19 to be in contact with the lifting rod 3, the extrusion plate 19 extrudes the lifting rod 3 upwards to enable the lifting rod 3 to slide on the supporting rod 2, the supporting rod 2 slides in the lifting groove, so that the use height of the main beam 4 is adjusted, articles with different heights can be better lifted, the extrusion plate 19 slides downwards due to the contraction of the piston rod of the hydraulic cylinder 18, the extrusion plate 19 drives the two traction ropes 15 to move, because the cooperation of first pulley 14 and second pulley 17 makes the slider 12 that haulage rope 15 pulling corresponds slide, and slider 12 slides and drives spring 13 atress shrink, and slider 12 drives the corresponding pressure ram 10 and rotates and remove, thereby the one end of pressure ram 10 rotates on lifter plate 8 and drives lifter plate 8 and slide downwards, and lifter plate 8 drives gyro wheel 9 and ground contact to the convenience removes base 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A lightweight portal crane comprises two bases (1) and is characterized in that two support rods (2) are fixedly installed at the top of each base (1), lifting rods (3) are sleeved on the tops of the two support rods (2) in a sliding mode, the top of each lifting rod (3) is fixedly provided with a same main beam (4), a crane trolley (5) is arranged at the top of each main beam (4), a lifting mechanism (6) is arranged on each crane trolley (5), a placement groove (7) is formed in the bottom of each base (1), a lifting plate (8) is installed in each placement groove (7) in a sliding mode, four to eight idler wheels (9) are evenly installed on the bottom of each lifting plate (8) in a rotating mode, extrusion rods (10) are installed on the top of each lifting plate (8) in a rotating mode, sliders (12) are installed on the tops of the two extrusion rods (10) in a rotating mode, and two sliding grooves (, the two sliding blocks (12) are respectively installed in the two sliding grooves (11) in a sliding manner.

2. The lightweight portal crane according to claim 1, wherein one end of the spring (13) is fixedly mounted on one side of the sliding block (12), the other end of the spring (13) is fixedly mounted on the inner wall of the corresponding sliding chute (11), two first pulleys (14) are slidably mounted on the inner wall of the placing groove (7), a traction rope (15) is slidably mounted on each of the two first pulleys (14), and one end of the traction rope (15) is fixedly mounted on the corresponding sliding block (12).

3. The lightweight portal crane according to claim 1, wherein two fixing rods (16) are fixedly mounted at the top of the base (1), a second pulley (17) is rotatably mounted at one side of each fixing rod (16) close to each other, one end of each of the two hauling ropes (15) extends to the upper side of the same base (1), and the two hauling ropes (15) are respectively slidably mounted on the two second pulleys (17).

4. The lightweight portal crane according to claim 1, wherein a hydraulic cylinder (18) is fixedly mounted at the top of the base (1), a squeeze plate (19) is fixedly mounted on a piston rod of the hydraulic cylinder (18), two sliding holes are formed in the squeeze plate (19), and the two support rods (2) are respectively slidably mounted in the corresponding two sliding holes.

5. The lightweight portal crane according to claim 2, wherein one end of the traction rope (15) is fixedly mounted on the corresponding extrusion plate (19), the bottom of the lifting rod (3) is provided with a lifting groove, and the support rod (2) is slidably mounted in the corresponding lifting groove.