CN214828517U - Simple portal crane - Google Patents

Abstract

The utility model relates to a simple portal crane, which comprises a winch, a track and a portal frame, wherein the winch is arranged at the top of the portal frame, the lower part of the portal frame is arranged on the track in a rolling manner, the portal frame comprises two triangular frames, each triangular frame comprises a bottom beam with the bottom horizontally arranged, two ends of the bottom beam are fixedly connected with two door legs which are obliquely arranged, and the tops of the door legs are fixedly connected through a connecting plate; the top beams are fixedly arranged on the connecting plates at the tops of the two triangular frames, and hoisting mechanisms are arranged below the top beams; two limit switches are arranged on the top beam; reinforcing ribs connected with the door legs are arranged below the top beam. The utility model discloses a with two triangle-shaped frames and back timber detachable fixed connection, triangle-shaped frame global design makes things convenient for the transportation of portal and assembles, and the stiffening rib also adopts the bolt fastening on the gate leg of back timber and triangle-shaped frame simultaneously, not only makes things convenient for the transportation in earlier stage, has also strengthened the intensity of portal greatly.

Description

Simple portal crane

Technical Field

The utility model belongs to the hoisting equipment art field, concretely relates to plain type gantry crane.

Background

The construction sites of many tunnels are located in crowded cities or remote mountains, such as urban subway tunnels, mountain-crossing railway tunnels and mountain-crossing highway tunnels, and the construction sites of the tunnel projects are not abundant or the engineering equipment is cumbersome to transport and difficult to reach the construction sites, so that difficulties are brought to some construction operations.

Many construction projects process the steel pipes in the machining shed, but because the machining shed field is limited, the steel pipes are difficult to move when long steel pipes are processed; if the conventional commercially available gantry crane equipment is used, the gantry crane equipment is often limited by site limitation and cost control, and cannot be well popularized and utilized.

Therefore, a low-cost gantry crane is required to be specially designed at present, and can be matched with a tool, so that hoisting and fixing in the steel pipe machining process are very convenient, labor cost is saved, and working efficiency is improved.

Disclosure of Invention

In view of this, the utility model provides a plain type gantry crane to solve among the prior art a lot of projects and process the steel pipe at the machining canopy, because the machining canopy place is limited, it is very difficult that the steel pipe adds man-hour removal, if there is to buy ready-made portal crane equipment, often receives the place restriction and the cost is higher, can not be fine promote and utilize the scheduling problem.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the simple portal crane comprises a winch, two rails and a portal frame, wherein the winch is arranged at the top of the portal frame, the lower part of the portal frame is arranged on the rails in a rolling manner, the two rails are laid on the ground in parallel, the portal frame comprises two triangular frames, each triangular frame comprises a bottom beam with the bottom horizontally placed, two obliquely arranged door legs are fixedly connected to two ends of each bottom beam, and the tops of the door legs are fixedly connected through a connecting plate; the top beams are fixedly arranged on the connecting plates at the tops of the two triangular frames, and hoisting mechanisms are arranged below the top beams; two limit switches are arranged on the top beam; reinforcing ribs connected with the door legs are arranged below the top beam.

In the above simple portal crane, as a preferable scheme, one end of the reinforcing rib is fixed on the door leg by a bolt, and the other end of the reinforcing rib is fixed below the top beam by a bolt.

In the above simple portal crane, as an optimal scheme, the cross section of the top beam is i-shaped, two limit switches are installed in the side grooves of the top beam, and the two limit switches are both located right above the connection point of the reinforcing rib on the top beam.

In foretell plain type gantry crane, as preferred scheme, hoisting mechanism includes hoist engine and walking dolly, and the walking dolly hoists on the back timber, and hoist engine fixed mounting has wire rope on the hoist engine below the walking dolly, and wire rope's free end is provided with the lifting hook.

In the above simple portal crane, preferably, the bottom beams are provided with directional U-shaped wheels on the lower surfaces of the two ends thereof.

In the simple portal crane, as a preferable scheme, the connecting plate is a steel plate with the thickness of 1cm and the thickness of 10 × 20cm, and four through holes are symmetrically formed in the middle of the connecting plate; and sealing one end of the door leg by the connecting plate for welding, and fixing the top beam on the connecting plate by four bolts.

The utility model discloses have following positive profitable technological effect:

the utility model provides a plain type gantry crane, through with two triangle-shaped frames and back timber detachable fixed connection, triangle-shaped frame global design makes things convenient for the transportation and the assembly of portal, and the stiffening rib also adopts the bolt fastening on the gate leg of back timber and triangle-shaped frame simultaneously, not only makes things convenient for the transportation in earlier stage, has also strengthened the intensity of portal greatly.

Drawings

Fig. 1 is a schematic view of an overall structure of a simplified gantry crane.

Fig. 2 is a schematic view of a hoisting mechanism of a simple portal crane.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The programs referred to or relied on in the following embodiments are all conventional programs or simple programs in the art, and those skilled in the art can make routine selection or adaptation according to specific application scenarios.

Exemplary embodiments of the present invention are described in detail with reference to the following drawings.

The reference numbers in the figures denote: the lifting device comprises a rail 1, a reinforcing rib 2, a top beam 3, a winch 4, a limit switch 5, a connecting plate 6, door legs 7, a bottom beam 8, a walking trolley 9, a steel wire rope 10 and a lifting hook 11.

Exemplary embodiments of the present invention are described below in conjunction with specific situations:

as shown in fig. 1-2, the utility model provides a simple portal crane, including hoist engine 4, track 1 and portal, hoist engine 4 installs at the portal top, and the rolling installation of portal lower part is on track 1, track 1 has two, and parallel laying is subaerial, and the portal includes two triangle-shaped frames, and the triangle-shaped frame includes the floorbar 8 that the bottom was placed horizontally, and the both ends of floorbar 8 are fixedly connected with two door legs 7 that incline to set up, and door leg 7 top is through connecting plate 6 fixed connection; the top beams 3 are fixedly arranged on the connecting plates 6 at the tops of the two triangular frames, and hoisting mechanisms are arranged below the top beams 3; two limit switches 5 are arranged on the top beam 3; and a reinforcing rib 2 connected with the door leg is arranged below the top beam 3.

One end of the reinforcing rib 2 is fixed on the door leg 7 through a bolt, and the other end of the reinforcing rib 2 is fixed below the top beam 3 through a bolt.

The cross-section of back timber 3 is the I shape, installs two limit switch 5 that are used for restricting hoist engine 4 and move on the back timber in the side recess of back timber 3, and two limit switch 5 all are located stiffening rib 2 directly over the back timber 1 tie point, and this design can enough satisfy to move spacing on back timber 3 hoist engine 4, also can avoid the hoist engine to touch the stiffening rib at the removal in-process, guarantees the security of equipment operation.

The hoisting mechanism comprises a winch 4 and a traveling trolley 9, the traveling trolley 9 is hoisted on the top beam 3, the winch 4 is fixedly installed below the traveling trolley 9, a steel wire rope 10 is wound on the winch 4, a lifting hook 11 is arranged at the free end of the steel wire rope 10, the winch 4 and the traveling trolley 9 are connected with a controller through cables, and the controller is used for controlling the forward and reverse rotation of the winch 4 and controlling the traveling trolley 9 to travel on the top beam 3.

The utility model discloses a production accident, including floorbar 8, fixed bolster.

The connecting plate 6 is a steel plate with the thickness of 1cm and the thickness of 10x20cm, and four through holes are symmetrically formed in the middle of the connecting plate 6; the connecting plate seals one end of the door leg for welding, and then the top beam 3 is fixed on the connecting plate 6 by four bolts.

The simple portal crane has the following operation and use modes:

the bottom beams are flatly placed on the ground and divided into two groups, wherein each group comprises two bottom beams which are placed side by side; taking two door legs, wherein one end of each door leg is matched with an oblique head, the door legs and the bottom beam form an isosceles triangle structure, and the joints are welded by using a two-protection welding machine; the top parts of the door legs are closed and are matched with the oblique heads; taking a steel plate with the thickness of 1cm and the width of 20cm, cutting the steel plate into a proper length, covering the top ends of the door legs, and welding and reinforcing the steel plate; the whole triangular steel structure is called a triangular frame as a whole, and two triangular frames which are the same are made.

Cutting a steel plate with the thickness of 1cm and the width of 20cm into four sections, wherein the length of each section is 20cm, a screw hole position is arranged at the center, and a directional U-shaped wheel is installed; and welding the whole body and the portal frame on the same horizontal plane and at two ends of the bottom beam.

The winch is fixed on the top beam, so that the winch can act on the top beam without obstruction. And then installing a limit switch in a groove on the side surface of the top beam.

Paving rails at proper positions of a field, wherein the distance between the rails is about 10 meters, and ensuring that the two rails are parallel; and two ends of the track are provided with limiting blocks.

The two pairs of triangular frames are placed on the track by using a crane, the top beam is integrally placed on the portal frame, the combination part is fixed by adopting bolts, and reinforcing ribs are additionally arranged to improve the integral strength of the portal frame; after completion, the gantry is pushed by hand, and the gantry crane can translate on the track without obstruction; the winch is provided with the pulley block and the lifting hook, the lifting hook is hung with the electromagnet tool for fixing the steel pipe in a hoisting manner, and the whole gantry crane is installed until the installation is finished.

Finally, it should be further noted that, in the technical solutions of the present invention, relational terms such as first and second, and the like are used only for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The principle and the implementation of the present invention are explained above by applying specific examples, and the above descriptions of the embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there may be changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation to the protection scope of the present invention.

Claims (6)

1. A simple portal crane comprises a winch, a track and a portal frame, wherein the winch is installed at the top of the portal frame, the lower part of the portal frame is installed on the track in a rolling mode, and the track comprises two steel rails which are laid on the ground in parallel; the method is characterized in that: the gantry comprises two triangular frames, each triangular frame comprises a bottom beam with the bottom horizontally placed, two obliquely arranged door legs are fixedly connected to two ends of each bottom beam, and the tops of the door legs are fixedly connected through a connecting plate; a top beam is arranged on a connecting plate at the top of the two triangular frames, and a hoisting mechanism is arranged below the top beam; two corresponding limit switches are arranged on the top beam; and reinforcing ribs connected with the door legs are arranged below the top beam.

2. A simplified portal crane according to claim 1, wherein: one end of the reinforcing rib is fixed on the door leg through a bolt, and the other end of the reinforcing rib is fixed below the top beam through a bolt.

3. A simplified portal crane according to claim 1, wherein: the cross section of the top beam is I-shaped, two limit switches are arranged in a groove in the side face of the top beam, and the two limit switches are both positioned right above the connecting point of the top beam by the reinforcing rib.

4. A simplified portal crane according to claim 1, wherein: the hoisting mechanism comprises a winch and a traveling trolley, the traveling trolley is hoisted on the top beam, the winch is fixedly installed below the traveling trolley, a steel wire rope is wound on the winch, and a lifting hook is arranged at the free end of the steel wire rope.

5. A simplified portal crane according to claim 1, wherein: and directional U-shaped wheels are mounted at the lower sides of the two ends of the bottom beam.

6. A simplified portal crane according to claim 1, wherein: the connecting plate is a steel plate with the thickness of 1cm and the thickness of 10x20cm, and four through holes are symmetrically formed in the middle position of the connecting plate; the connecting plate seals one end of the door leg for welding, and the top beam is fixed on the connecting plate by four corresponding bolts.

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