CN219636739U - Portal frame and portal crane - Google Patents

Abstract

The utility model discloses a portal frame and a portal crane, which relate to the field of hoisting equipment and comprise a main beam and supporting legs, wherein the main beam comprises at least one main beam component, the end parts of the main beam components are detachably and fixedly connected with the tops of the supporting legs, the supporting legs are used for supporting the main beam components, the main beam components comprise a plurality of beam sheets which are arranged in parallel along the length direction of the main beam, and two adjacent beam sheets are detachably and fixedly connected. The adaptability of the gantry crane can be improved, and the transportation is convenient.

Description

Portal frame and portal crane

Technical Field

The utility model relates to the field of hoisting equipment, in particular to a portal frame and a portal crane.

Background

The gantry crane is also called a portal crane, and is a deformation of the bridge crane. The gantry crane has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is widely applied to hoisting operation. The portal frame of the portal crane comprises a main beam and supporting legs, wherein the main beam is transversely arranged, and the supporting legs are fixedly arranged at two ends of the main beam. The length of girder in the current portal frame is generally far greater than the length of landing leg to girder is the structure of integral type, and the size of girder is fixed in the portal frame, and is low to the adaptability of the size of goods and place, and the structure of integral type can not split, has the requirement on the size to transportation equipment, is inconvenient for transportation.

Disclosure of Invention

The utility model aims to provide a portal frame and a portal crane, which are used for solving the problems in the prior art, improving the adaptability of the portal crane and facilitating transportation.

In order to achieve the above object, the present utility model provides the following solutions:

the utility model provides a portal frame which comprises a main beam and supporting legs, wherein the main beam comprises at least one main beam component, the end parts of the main beam component are detachably and fixedly connected with the tops of the supporting legs, the supporting legs are used for supporting the main beam component, the main beam component comprises a plurality of beam sheets which are arranged in parallel along the length direction of the main beam, and two adjacent beam sheets can be detachably and fixedly connected.

Preferably, the leg includes at least one leg member, an upper portion of the leg member being detachably connected to an end portion of the girder member, the leg member being for supporting the girder member, the leg member including a plurality of leg pieces juxtaposed in a length direction of the leg.

Preferably, the girder members are arranged in parallel along a direction perpendicular to the extension direction of the girders, and two adjacent girder members can be detachably and fixedly connected.

Preferably, a plurality of the leg members are arranged in parallel along a direction perpendicular to the extending direction of the leg, and two adjacent leg members are detachably and fixedly connected.

Preferably, the triangular support is further included, the triangular support is formed by fixedly connecting a transverse support, a vertical support and an inclined support end to end in sequence, the transverse support is perpendicular to the vertical support, the transverse support is used for being detachably and fixedly connected with the top of the supporting leg, and the vertical support is used for being detachably and fixedly connected with the end part of the main beam component.

Preferably, the support further comprises a first support piece, one end of the first support piece is detachably and fixedly connected with the main beam, the other end of the first support piece is detachably and fixedly connected with the supporting leg, and the first support piece, the main beam and the supporting leg form a triangle.

Preferably, the walking device further comprises a first walking mechanism, wherein the first walking mechanism is detachably and fixedly arranged below the supporting leg, and the first walking mechanism is used for supporting the supporting leg and driving the supporting leg to move.

Preferably, the walking device further comprises a second supporting piece, the first walking mechanism is arranged on one side of the bottom of the supporting leg, one end of the second supporting piece is fixedly connected with the other side of the bottom of the supporting leg, the other end of the second supporting piece is fixedly connected with the walking mechanism, and the first walking mechanism, the second supporting piece and the bottom of the supporting leg form a triangle.

Preferably, the walking device further comprises a third supporting piece and a second walking mechanism, one end of the third supporting piece is fixedly connected with the side face of the supporting leg, the other end of the third supporting piece extends downwards away from the supporting leg, the other end of the third supporting piece is fixedly connected with the second walking mechanism, and the second walking mechanism is used for supporting the third supporting piece.

The utility model also provides a gantry crane, which comprises a crane and any one of the gantry frames, wherein the crane can be arranged on the main beam in a reciprocating manner along the length direction of the main beam, and the lower part of the crane is provided with a lifting hook for lifting.

Compared with the prior art, the utility model has the following technical effects:

the portal frame and the portal crane provided by the utility model have the advantages that the main beam comprises a main beam component, the main beam component comprises a plurality of beam sheets which are arranged in parallel along the length direction of the main beam, and two adjacent beam sheets can be detachably and fixedly connected. When the lifting device is used, the number of beam sheets in the main beam component can be adjusted according to the size of the lifted object, so that the length and the size of the main beam can be adjusted, the main beam can adapt to the size of the object, and the adaptability of the portal frame and the portal crane is improved.

Further, landing leg and girder can detachably fixed connection, and two adjacent two are can be detachably fixed connection, can dismantle girder and landing leg before the transportation to dismantle into a plurality of solitary roof beam pieces with girder component, can batch or stack the transportation, improve the convenience of transportation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of a gantry and gantry crane provided in the present utility model;

FIG. 2 is a top view of a gantry and gantry crane provided in the present utility model;

fig. 3 is a side view of a gantry and gantry crane provided in the present utility model.

In the figure: 1-a triangular support; 2-a main beam; 3-a crane; 4-supporting legs; 5-a first support; 6-an operation chamber; 7-a second travelling mechanism; 8-lifting hooks; 9-a second support; 10-third support.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model aims to provide a portal frame and a portal crane, which are used for solving the problems in the prior art, improving the adaptability of the portal crane and facilitating transportation.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Example 1

In this embodiment, a portal frame and a portal crane are provided, as shown in fig. 1-3, including a main beam 2 and a supporting leg 4, the main beam 2 includes at least one main beam 2 component, the end of the main beam 2 component and the top of the supporting leg 4 can be detachably and fixedly connected, the supporting leg 4 is used for supporting the main beam 2 component, the main beam 2 component includes a plurality of beam pieces arranged side by side along the length direction of the main beam 2, and two adjacent beam pieces can be detachably and fixedly connected. The main beam 2 comprises a main beam 2 component, wherein the main beam 2 component comprises a plurality of beam sheets which are arranged in parallel along the length direction of the main beam 2, and two adjacent beam sheets can be detachably and fixedly connected. When the device is used, the number of beam pieces in the main beam 2 component can be adjusted according to the size of the hoisted article, so that the length size of the main beam 2 can be adjusted, the main beam 2 can adapt to the size of the article, the device can also adapt to the size of a field, and the adaptability of the portal frame and the portal crane is improved.

Further, landing leg 4 and girder 2 detachably fixed connection, two adjacent two are detachably fixed connection, can dismantle girder 2 and landing leg 4 before the transportation to dismantle girder 2 component into a plurality of solitary roof beam pieces, can batch or stack the transportation, improve the convenience of transportation.

In this embodiment, the leg 4 includes at least one leg 4 member, the upper portion of the leg 4 member is detachably connected to the end of the main beam 2 member, the leg 4 member is for supporting the main beam 2 member, and the leg 4 member includes a plurality of leg pieces juxtaposed in the length direction of the leg 4. When the lifting device is used, the number of leg pieces in the leg 4 members of the supporting leg 4 can be adjusted according to the size of the lifted object, so that the height of the supporting leg 4 is adjusted, the supporting leg 4 is adapted to objects with different heights, the supporting leg 4 can be adapted to different sizes of different objects, the lifting device can also be adapted to the size of a field, and the adaptability of a portal frame and a portal crane is improved. Moreover, two adjacent leg pieces can be disassembled, and the leg 4 member can be disassembled into a plurality of independent leg pieces before transportation, so that the transportation can be carried out in batches or in a stacked manner, and the convenience of transportation is improved.

In this embodiment, a plurality of main beam 2 members are arranged in parallel along a direction perpendicular to the extending direction of the main beam 2, and two adjacent main beam 2 members can be detachably and fixedly connected. In one main beam 2, the main beam 2 can be matched with the weight of the hoisted articles, the number of main beam 2 components can be set according to the weight, when the weight of the hoisted articles is lighter, the number of main beam 2 components can be reduced, the consumption of steel is reduced, and the cost is saved; when the weight of the hoisted articles is heavier, the number of the components of the main beam 2 can be increased, and the strength of the main beam 2 is improved.

In this embodiment, a plurality of leg 4 members are juxtaposed in a direction perpendicular to the direction in which the leg 4 extends, and two adjacent leg 4 members are detachably fixedly connected. In one supporting leg 4, the supporting leg 4 can be matched with the weight of the hoisted article, the number of supporting leg 4 components can be set according to the weight, and when the weight of the hoisted article is lighter, the number of the supporting leg 4 components can be reduced, so that the cost is saved; when the weight of the hoisted article is heavy, the number of the supporting leg 4 members can be increased, and the strength of the supporting leg 4 is improved.

In this embodiment, the portal frame further includes a triangle support 1, and the triangle support 1 is formed by connecting a transverse support, a vertical support and an inclined support end to end in sequence, and the transverse support is perpendicular to the vertical support, and the transverse support is used for being detachably and fixedly connected with the top of the supporting leg 4, and the vertical support is used for being detachably and fixedly connected with the end part of the main beam 2 component. The triangular support piece 1 has higher stability and can improve the stability of the portal frame. The triangular support 1 in this embodiment may preferably further include a frame, a connecting rod and two reinforcing rods, where the frame is rectangular, one corner of the rectangular frame at one end of the connecting rod is fixedly connected, the other end of the connecting rod is fixedly connected with the other diagonal corner of the rectangular frame, so that the rectangular frame forms two triangles, one horizontal side of the triangle below is a transverse support rod, the connecting rod is an oblique support rod, and the other end is a vertical support rod connected with the oblique support rod and the transverse support rod respectively. Two reinforcing rods are fixedly arranged in the triangle above the inside of the frame, one end of one reinforcing rod is fixedly connected with one side of the frame, the other end of the other reinforcing rod is fixedly connected with a connecting rod, one end of the other reinforcing rod is fixedly connected with one adjacent side of the frame, the other end of the other reinforcing rod is fixedly connected with the connecting rod, and the two adjacent sides of the two reinforcing rods and the frame form a rectangle.

In this embodiment, still include first support piece 5, first support piece 5 one end and girder 2 detachably fixed connection, first support piece 5's the other end and landing leg 4 detachably fixed connection, first support piece 5 constitutes triangle-shaped with girder 2, landing leg 4, makes the structure more stable, improves the stability of portal frame. In this embodiment, one end of the first support 5 is fixedly connected to the lower portion of the main beam 2, which may be fixedly connected to the lower surface of one of the main beam 2 members, the other end of the first support 5 is fixedly connected to the side surface of the leg 4 facing the other leg 4, and the first support 5 may be connected to the leg 4 member. In this embodiment, the two ends of the main beam 2 are provided with first supporting members 5.

In this embodiment, the device further includes a first running mechanism, where the first running mechanism is detachably and fixedly disposed below the supporting leg 4, and the first running mechanism is used to support the supporting leg 4 and can drive the supporting leg 4 to move. The portal frame is convenient to move.

In this embodiment, the first walking mechanism is disposed on one side of the bottom of the supporting leg 4, one end of the second supporting member 9 is fixedly connected with the other side of the bottom of the supporting leg 4, the other end of the second supporting member 9 is fixedly connected with the walking mechanism, and the first walking mechanism, the second supporting member 9 and the bottom of the supporting leg 4 form a triangle. The structure is more stable, and the stability of the portal frame is improved. In this embodiment, the running gear is fixedly arranged at one side of the bottom of the leg 4 near the other leg 4.

In this embodiment, the device further includes a third support member 10 and a second running mechanism 7, one end of the third support member 10 is fixedly connected with the side surface of the supporting leg 4, the other end of the third support member 10 extends downwards away from the supporting leg 4, the other end of the third support member 10 is fixedly connected with the second running mechanism 7, and the second running mechanism 7 is used for supporting the third support member 10. The main beam 2 is supported by arranging more supporting pieces and travelling mechanisms, so that the stability of the portal frame is improved. In this embodiment, the second travelling mechanism 7 is disposed on two sides of the main beam 2 in a direction perpendicular to the length direction of the main beam 2, so that the third supporting member 10, the supporting leg 4 and the ground form a stable triangle structure, and further, the stability of the portal frame is improved.

The beam piece and the leg piece in this embodiment are all beret beams. Simple structure and high strength.

In this embodiment, the device further comprises a pin and a bolt for connecting two adjacent bailey beams. One end of the pin bailey beam is provided with a male head, the other end of the pin bailey beam is provided with a female head, and the male head of one bailey beam is fixedly connected with the female head of the adjacent bailey beam. The male head and the female head are respectively provided with a connecting hole, the diameter of one end of the pin is larger than that of the connecting hole, the other end of the pin is provided with a bolt hole, the diameter of the bolt hole is smaller than that of the connecting hole, after the male head and the female head are spliced, the pin is used for being inserted into and penetrating through the connecting holes on the male head and the female head, and finally the bolt is inserted into the bolt hole, so that the pin is prevented from falling off. In the embodiment, the pin is 30 Cr-Mn-Ti steel, the bolt is spring steel, and the bailey beam is 16 Mn steel. The bailey beam comprises an upper chord, a lower chord, a vertical rod and an inclined strut, wherein one end of the lower chord of the upper chord is provided with a female head, and the other ends of the upper chord and the lower chord are provided with male heads. The girder 2 still includes the angle steel as the support frame, and the one side of angle steel is used for through bolt fastening with the angle steel on the bailey roof beam of adjacent, and the specification of angle steel is 90mm 7mm in this embodiment, makes two adjacent bailey roof beams fixed connection through bolt fastening with the angle steel on the bailey roof beam of bailey fastening angle steel. In this example, the bailey beam has a height of 1.5m and a length of 3m, and each bailey beam weighs 270kg.

In this embodiment, the bailey beam further includes a reinforcing chord member, one end of the reinforcing chord member has a female head, the other end has a male head, a fixing hole is formed in the reinforcing chord member, and a bolt is used to pass through the fixing hole to fasten the bailey beam so that the reinforcing chord member is fixedly connected with the bailey beam. One end of the reinforcing chord member is fixedly connected with the upper chord member, the other end of the reinforcing chord member is fixedly connected with the lower chord member, the middle part of the reinforcing chord member is fixedly connected with the diagonal bracing, and the shearing resistance of the bailey beam is improved.

Wherein, the tensile stress, the compressive stress and the bending stress of the 16 manganese steel are 1.3X1210=273 MPa. Shear stress of 16 manganese steel: 1.3×120=156 MPa.

Tensile, compressive and bending stresses of 30 chromium manganese titanium 0.85 x 1300 = 1105MPa.30 manganese titanium shear stress: 0.45 x 1300 = 585MPa.

One end of the vertical rod is welded with the upper chord member, the other end of the vertical rod is welded with the lower chord member, and the allowable stress of the welding seam is the same as that of the base material.

Example two

The embodiment provides a gantry crane, including crane 3 and the portal frame in the first embodiment, crane 3 can follow girder 2 length direction reciprocating motion's setting on girder 2, and crane 3 lower part has the lifting hook 8 that is used for hoist and mount, and lifting hook 8 is used for hoisting article, and the gantry crane that comprises the portal frame that is convenient for transport and strong adaptability makes the gantry crane can adapt to the size of article, the transportation of being convenient for.

In this embodiment, the crane 3 is provided with an electric hoist for hoisting the material by the hook 8 and a motor for driving the crane 3 to move on the beam. The first travelling mechanism is provided with a motor for driving the first travelling mechanism to move.

In this embodiment, the gantry crane further comprises an operation room 6, the operation room 6 is in communication connection with the crane 3, and the operation room 6 can control the crane 3 to move and hoist objects. In this embodiment, the operating room 6 is fixedly arranged on the side, facing the crane 3, of the upper part of the supporting leg 4, so that the crane 3 and the hoisted objects can be observed conveniently.

In this embodiment, the assembled structural materials of the gantry crane are shown in table 1.

Table 1 gantry crane assembly structure material table

In this embodiment, the present utility model is a beret beam assembly structure, and the operation flow thereof is as follows:

1. preparing installation; 2. assembling structural members; 3. the walking mechanism is installed; 4. the supporting legs 4 are arranged; 5. the main beam 2 is installed; 6. hoisting by a crane 3; 7. installing a cab and accessories; 8. mounting an electric and control device; 9. and (5) installing a lifting appliance.

The installation preparation comprises the point collection and detection of lifting equipment, tools, rigging and instruments for installation and parts.

The assembly of the structural components comprises the steps of connecting the bailey beams through pins and bolts, and assembling the required main beam 2 structure and the support leg 4 structure.

The running mechanism installation comprises a first running mechanism installation and a second running mechanism 7 installation, and the first running mechanism and the second running mechanism 7 installation methods are the same: the corresponding position of the traveling trolley is marked at the mounting point on the track, then the traveling trolley is hoisted, and the traveling trolley is stably positioned by using the wedge blocks.

The leg 4 mounting comprises mounting the leg 4 assembled with the bailey beam to the top of the running structure with a crane and to the running structure in a hinged manner.

The main beam 2 mounting includes lifting the main beam 2 to the legs 4 and mounting to the legs 4 in a hinged manner.

After the sling bolt comprising the automobile crane is hung in the trolley hanging hole, the whole trolley is lifted to exceed the height of the trolley track of the upper cover plate of the main beam 2, the running wheels of the trolley are aligned with the center line of the trolley track according to the design direction, and the trolley falls onto the track slowly, and then the automobile crane is unhooked.

Cab and accessory installation includes subsequent completion of cab, access platform, ladder, armrest and balustrade installations, with cab 6 comprising the cab.

Electrical and control device installations include installations including power cables, electrical equipment and components, control systems, safety indicating systems.

The hanger installation includes the use of a crane 3 to install hangers such as hooks 8.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (10)

1. The utility model provides a portal frame which characterized in that: the support comprises a main beam and support legs, wherein the main beam comprises at least one main beam component, the end parts of the main beam component and the top parts of the support legs can be detachably and fixedly connected, the support legs are used for supporting the main beam component, the main beam component comprises a plurality of beam sheets which are arranged in parallel along the length direction of the main beam, and two adjacent beam sheets can be detachably and fixedly connected.

2. The gantry according to claim 1, characterized in that: the support leg comprises at least one support leg member, the upper portion of the support leg member is detachably connected with the end portion of the main beam member, the support leg member is used for supporting the main beam member, and the support leg member comprises a plurality of leg pieces which are arranged in parallel along the length direction of the support leg.

3. The gantry according to claim 1, characterized in that: the girder components are arranged in parallel along the direction perpendicular to the extension direction of the girders, and two adjacent girder components can be detachably and fixedly connected.

4. The gantry according to claim 2, characterized in that: the support leg members are arranged in parallel along the direction perpendicular to the extension direction of the support legs, and two adjacent support leg members are detachably and fixedly connected.

5. The gantry according to claim 1, characterized in that: still package triangle support piece, triangle support piece comprises triangle-shaped by horizontal support piece, vertical support piece and diagonal support piece end to end fixed connection in proper order, horizontal support piece with vertical support piece is perpendicular, horizontal support piece is used for can dismantle fixed connection with the top of landing leg, vertical support piece is used for can dismantle fixed connection with the tip of girder component.

6. The gantry according to claim 1, characterized in that: the support comprises a main beam, a support leg and a first support piece, wherein the main beam is detachably and fixedly connected with the support leg, and the support leg is detachably and fixedly connected with the support leg.

7. The gantry of claim 6, wherein: the walking device comprises a supporting leg, and is characterized by further comprising a first walking mechanism, wherein the first walking mechanism can be detachably and fixedly arranged below the supporting leg, and the first walking mechanism is used for supporting the supporting leg and can drive the supporting leg to move.

8. The gantry of claim 7, wherein: the walking device comprises a supporting leg, a first walking mechanism, a second supporting member and a first walking mechanism, wherein the first walking mechanism is arranged on one side of the bottom of the supporting leg, one end of the second supporting member is fixedly connected with the other side of the bottom of the supporting leg, the other end of the second supporting member is fixedly connected with the walking mechanism, and the first walking mechanism, the second supporting member and the bottom of the supporting leg form a triangle.

9. The gantry of claim 8, wherein: the novel walking device comprises a supporting leg, and is characterized by further comprising a third supporting piece and a second walking mechanism, wherein one end of the third supporting piece is fixedly connected with the side face of the supporting leg, the other end of the third supporting piece extends downwards away from the supporting leg, the other end of the third supporting piece is fixedly connected with the second walking mechanism, and the second walking mechanism is used for supporting the third supporting piece.

10. The utility model provides a portal crane which characterized in that: the portal frame comprises a crane and the portal frame of any one of claims 1-9, wherein the crane can be arranged on the main beam in a reciprocating manner along the length direction of the main beam, and a lifting hook for lifting is arranged at the lower part of the crane.