CN108163705B - A gantry - Google Patents

Abstract

The invention discloses a portal frame, which comprises parallel door frames, wherein hanging beams perpendicular to cross beams are arranged between the door frames and are divided into upper and lower door frames, and cross bars forming rectangular frames are arranged between door posts of the lower door frame. The invention adopts a split mechanism, most rod pieces are detachably connected, so that the on-site installation and replacement of worn rod pieces are convenient, and the working efficiency is improved.

Description

A gantry

Technical Field

The invention relates to the technical field of high-voltage electric power equipment installation, and in particular to a gantry.

Background Art

Gantry is a mobile lifting equipment developed by companies or factories according to daily production needs. It is mainly used for equipment maintenance, transportation or material transportation and warehouse loading and unloading. It is widely used in mining, construction, mold manufacturing, power equipment, auto repair and other occasions. The use of gantry realizes mechanized lifting, reduces manpower, improves efficiency and reduces costs.

High-voltage power equipment is mostly multi-module series mode, several sub-modules form a valve module, and several valve modules and supporting structures form a valve tower. Since the valve module is heavy and expensive, there are high requirements for the stability and overall rigidity of the gantry equipment. Most existing gantries have the disadvantages of insufficient stability, difficulty in disassembly, and large space occupation.

Summary of the invention

In view of the shortcomings of the prior art, the present invention provides a gantry, the purpose of which is to solve the problems of difficulty in disassembly and insufficient stability of the gantry, which is specifically achieved by the following technical solutions:

A gantry comprises door frames arranged in parallel, wherein the door frames are provided with hanging beams which are perpendicular to and connected to the door frame cross beams, the door frames are divided into upper and lower door frames, and cross bars forming a rectangular frame are provided between the door posts of the lower door frame.

Preferably, the number of the suspension beams is at least 3, and the length of the suspension beams is greater than the distance between the parallel door frames.

Preferably, reinforcement members connected to the door frame and door posts are respectively provided at both ends of the hanging beam.

Preferably, reinforcement members are provided on both sides of the door frame at the upper ends of the door posts and on the same vertical plane as the cross beam, and the reinforcement members and the door posts form a triangular reinforcement frame.

Preferably, the other end of the reinforcement member is provided with a reinforcement frame forming a triangle with the doorpost of the lower door frame.

Preferably, auxiliary suspension beams are provided between the reinforcement members.

Preferably, the rectangular frame is provided with diagonal reinforcement members, and the length of the lower cross beam of the door frame is greater than the width of the door frame.

Preferably, a universal wheel is installed at the bottom of the door frame and door post, and the universal wheel includes a wheel and a side plate. The side plate is fixedly connected to the middle bowl, and a radial ball bearing is sleeved in the positioning shaft. The radial ball bearing is sleeved on the step shaft, and the positioning shaft is sleeved on the middle bowl. There is a plane ball bearing between the middle bowl and the bottom plate, and the step shaft is fixed to the bottom plate by a nut.

Preferably, the doorpost is made of the following components in percentage by mass: C: ≤0.12, Si: ≤1.00, Mn: ≤2.00, S: ≤0.030, P: ≤0.035, Cr: 17.00～19.00, Ni: 8.00～11.00, Ti: 5(C%-0.02)～0.80.

Compared with the closest prior art, the present invention has the following technical effects:

(1) The present invention adopts a split structure, and most of the rods are detachably connected, which is convenient for on-site installation and replacement of worn rods, thereby improving work efficiency.

(2) The upper door frame of the gantry of the present invention adopts a multi-beam structure to ensure the stability of the lifting; the lower door frame adopts a rectangular frame plus a triangular frame support to reduce the recoil of the gantry and ensure the safety of the lifting.

(3) The suspension beam of the present invention extends out of the overall frame, and the valve module can be suspended from the side to the valve tower.

(4) The main body of the present invention has a compact structure and a large lifting weight.

(5) The universal wheel of the present invention ensures balanced and flexible rotation under heavy load conditions, and is not damaged by obstruction, thereby effectively reducing the vibration and noise of the wheel.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a structural diagram of a gantry of the present invention;

FIG2 is a front view of a gantry of the present invention;

FIG3 is a top view of the gantry of the present invention;

FIG4 is a side view of the gantry of the present invention;

FIG5 is a schematic diagram of a universal wheel of a gantry of the present invention;

FIG6 is a front view of the gantry of the present invention when in operation;

Among them: 1-auxiliary hanging beam, 2-a reinforcement, 3-b reinforcement, 4-A hanging beam, 5-door post, 6-lower cross beam, 7-c reinforcement, 8-B hanging beam, 9-cross beam, 10-d reinforcement, 11-cross bar, 12-universal wheel, 13-plane ball bearing, 14-nut, 15-step shaft, 16-radial ball bearing, 17-bottom plate, 18-middle bowl, 19-positioning shaft, 20-side plate, 21-wheel

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

As shown in Fig. 1, the gantry comprises two parallel door frames, which are composed of door posts 5, cross beams 9 and lower cross beams 6 arranged at the top of the door posts 5. A detachable universal wheel 12 is installed at the bottom of the door posts 5. The universal wheel 12 is installed with a folding plate, and the universal wheel 12 is stacked into the door frame in the working state.

As shown in Figure 5, the universal wheel 12 includes a wheel 21 and a side plate 20. The side plate 20 is fixedly connected to the middle bowl 18. A radial ball bearing 16 is sleeved in the positioning shaft 19. The radial ball bearing 16 is sleeved on the step shaft 15. The positioning shaft 19 is sleeved on the middle bowl 18. There is a plane ball bearing 13 between the middle bowl 18 and the bottom plate 17. The step shaft 15 is fixed to the bottom plate 17 by a nut 14, forming a double bearing structure combining the radial ball bearing 16 and the plane ball bearing 13.

As shown in FIG4 , the door frame is divided into an upper door frame and a lower door frame. A reinforcement a 2 forming a right-angled triangle is provided at two right-angle positions of the upper door frame. A crossbar 11 forming a rectangular frame is provided between the door posts 5 of the lower door frame. A diagonal reinforcement d 10 is provided inside the rectangular frame. The length of the lower crossbeam 6 is greater than the width of the door frame. The lower crossbeam 6 is divided into three sections that can be detachably connected, wherein the middle section is provided between the door posts 5, and the other two sections are provided outside the door posts 5. C reinforcements 7 connected to the door posts 5 are provided at both ends of the lower crossbeam 6, respectively. The upper end of the c reinforcement 7 extends to the top of the rectangular frame. The lower crossbeam 6, the door posts 5 and the c reinforcement 7 form a stable triangle. The gantry has a total of 4 triangular frames. The dual design of the triangular frame and the rectangular diagonal reinforcement reduces the recoil of the gantry and effectively ensures the stability and safety of the hoisting.

As shown in Fig. 3, vertical hanging beams connected to the cross beam 9 are arranged between the two door frames, namely, the A hanging beam 4 at the axis of the cross beam 9 and the B hanging beams 8 at both ends, and their lengths are greater than the distance between the parallel door frames. The A hanging beam 4 is arranged on the lower surface at the axis of the cross beam 9, and the B hanging beams 8 at both ends are arranged on the upper surface of the cross beam.

As shown in FIG2 , each end of the B suspension beam 8 is provided with two a reinforcement members 2 distributed on both sides of the door column 5, forming a triangular structure with the B suspension beam 8 to enhance stability. A b reinforcement member 3 is provided at the upper end of the door column and on the same vertical plane as the cross beam 9. The b reinforcement member 3 is divided into a long rod and a short rod. The long and short rods form a triangular reinforcement frame with the door column, and the lower end of the long rod extends to the rectangular frame. An auxiliary suspension beam 1 parallel to the suspension beam is also provided between the b reinforcement members 3 of the two door frames.

In addition, the auxiliary hanging beam 1 can also be directly connected to the door post 5.

The door post 5 is made of the following components in percentage by mass: C: ≤0.12, Si: ≤1.00, Mn: ≤2.00, S: ≤0.030, P: ≤0.035, Cr: 17.00～19.00, Ni: 8.00～11.00, Ti: 5(C％-0.02)～0.80.

As shown in FIG5 , the steps for hoisting the gantry of the present invention are as follows:

(1) Place the assembled gantry on the top of the valve tower, and install a traveling electric hoist and a limit device on the top beam 4;

(2) Hang the valve module to be hoisted on the hook of the electric hoist, and the rotation of the electric hoist motor drives the valve module to be hoisted to move left and right;

(3) Stop the valve module to be hoisted at the designated position, remove the valve module, and the hoisting is completed.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims (3)

1. The portal frame comprises a door frame which is arranged in parallel and is characterized in that the door frame consists of a door post, a cross beam and a lower cross beam, wherein the cross beam and the lower cross beam are arranged at the top end of the door post;

The door frame is provided with a hanging beam which is vertical and connected with the door frame cross beam, the door frame is divided into an upper door frame and a lower door frame, and cross rods forming a rectangular frame are arranged between door posts of the lower door frame;

the rectangular frame is provided with a diagonal reinforcement, and the length of the lower cross beam of the door frame is larger than the width of the door frame;

The two ends of the lower cross beam are respectively provided with a reinforcing piece connected with the door post, the upper ends of the reinforcing pieces extend to the upper part of the rectangular frame, and the lower cross beam, the door post and the reinforcing pieces form a stable triangle;

The two door frames are provided with hanging beams which are vertical and connected with the cross beam, namely an A hanging beam at the axis of the cross beam and B hanging beams at the two ends, the lengths of the A hanging beams are larger than the distance between the door frames which are arranged in parallel, the A hanging beam at the axis of the cross beam is arranged on the lower surface of the axis of the cross beam, and the B hanging beams at the two ends are arranged on the upper surface of the cross beam;

The two sides of the door frame are positioned at the upper ends of the door posts, and the door frame and the cross beam are provided with reinforcing pieces on the same vertical surface, and the reinforcing pieces and the door posts form a triangular reinforcing frame;

The other end of the reinforcing piece is provided with a reinforcing frame forming a triangle with the door post of the lower door frame;

An auxiliary hanging beam is arranged between the reinforcing pieces;

The door post is prepared from the following components in percentage by mass: less than or equal to 0.12 percent of C, less than or equal to 1.00 percent of Si, less than or equal to 2.00 percent of Mn, less than or equal to 0.030 percent of S, less than or equal to 0.035 percent of P, 17.00-19.00 percent of Cr, 8.00-11.00 percent of Ni and 5 (C-0.02) to 0.80 percent of Ti.

2. The portal frame of claim 1, wherein the hanging beam is provided with a reinforcement member at both ends thereof, respectively, to be connected with the door frame jamb.

3. The portal frame of claim 1, wherein the universal wheel is installed at the bottom of the door frame door post, the universal wheel comprises a wheel and a side plate, the side plate is fixedly connected with the middle bowl, a radial ball bearing is sleeved in the positioning shaft and sleeved on the step shaft, the positioning shaft is sleeved on the middle bowl, a plane ball bearing is arranged between the middle bowl and the bottom plate, and the step shaft is fixed on the bottom plate through a nut.