CN203113148U - Step structure for walking platform - Google Patents

Abstract

The utility model provides a step structure (10) for a walking platform, which comprises at least two side walls (19) and a step (20) arranged between the side walls and formed by a bent board, wherein each side wall (19) is also formed by a bent board. The step structure for the walking platform disclosed by the utility model is firm in structure, light in weight and only needs less mounting space.

Description

The ledge structure that is used for travelling platform

Technical field

Theme of the present utility model relates to the ledge structure for travelling platform (workbench), and it comprises at least two sidewalls and is arranged between the described sidewall by the ladder that is formed by the sheet material of bending.

Background technology

Described a kind of ledge structure in U.S. Patent application 2009205906, it is assembled by two independent support member and a plurality of ladder element.Described ladder element can either be detachably fixed on the support member, also can be detachably fixed on other the ladder element.This ledge structure can be disassembled thus and be re-assemblied afterwards, so this ledge structure is suitable for for example using in the building site.Huge support member is secured on the pipe support that will be assembled separately.In addition, this support member has beam, fixedly has by the ladder element of being made by the sheet material of bending at this beam.Owing to used sheet material, so the ladder element can easily be implemented and transport.

In fiber web machine, the disassembled property of ledge structure usually not necessarily.In addition, arranging that above-mentioned pipe support combines with travelling platform often is impossible.Travelling platform is also referred to as workbench.Therefore, the sidewall of ledge structure will be made by firm shaped steel, is fixed on this shaped steel by bolt as the grid of ladder.As a result, obtained a huge and heavy ledge structure.In fiber web machine, owing to used some maintenance measure, and the situation that makes becomes complicated, wherein in these maintenance measures, ledge structure can hinder one's work, and must be removed temporarily.In practice, people are forced to for example make the two-piece type ledge structure, and wherein these two parts must be supported dividually.For this reason, need to use complicated support, make the quality of ledge structure and installing space demand further increase thus.

Summary of the invention

The utility model proposes a kind of ledge structure of the novelty for travelling platform, it compares lighter with existing ledge structure up to now, and only needs less installing space.

For this reason, comprise at least two sidewalls and be arranged between the described sidewall by the ladder of being made by the sheet material of bending that according to the ledge structure for travelling platform of the present utility model wherein each sidewall also is by being formed by the sheet material of bending.

Preferably, the part of described ladder extends through described sidewall, and exists welding to connect between described ladder and described sidewall.

Preferably, described ledge structure is configured to be used in the ledge structure on the travelling platform of fiber web machine.

Preferably, described sidewall is parallel alignment in a longitudinal direction, and is configured to cross jointly an angle, makes that the half-angle between the described sidewall is 2-7 °.

Preferably, each sidewall comprises two bending parts that point to along opposite directions.

Distinguishing characteristics of the present utility model is that each sidewall is by being made by the sheet material of bending.Realized the ledge structure that weight is lighter by this way, this ledge structure can also be shifted easily when needed.In addition, the processing of sheet material is simple, and just can obtain to have ladder and the sidewall of enough rigidity by suitable bending.Like this, when using suitable interconnection technique, ledge structure that can obtain to reinforce, self-supporting on the whole.When using sheet material, the quality of ledge structure also can be starkly lower than normal conditions.In addition, the ledge structure of such self-supporting need not special support and can be fixed on the travelling platform simply, and can manually shift.

Description of drawings

Come the utility model is elaborated with reference to the appended accompanying drawing that shows the some embodiment of the utility model below.Wherein:

Fig. 1 show on the travelling platform that is arranged on fiber web machine according to ledge structure of the present utility model;

Fig. 2 shows the critical piece of this ledge structure before assembling;

Fig. 3 a shows the ledge structure before these critical piece assemblings from distolateral observation;

Fig. 3 b shows the critical piece of Fig. 3 a under the assembled state;

Fig. 3 c show finished according to ledge structure of the present utility model;

Fig. 4 shows the ledge structure among the Fig. 1 that forwards maintenance position to.

The specific embodiment

Fig. 1 shows two according to ledge structure 10 of the present utility model, and it is arranged on the travelling platform 11 of fiber web machine.For example paper machine and board machine just belong to fiber web machine, and wherein said paper machine and board machine almost have travelling platform in the whole length of its fore side FS.In addition, the driving side TS at machine also can have travelling platform.Here, show the wet end 12 of fiber web machine as an example.Wet end 12 comprises the frame parts (Stuhlungsteile) 13 that arranges along machine direction MD, and machine element (for example, roller) 14 is supported on this frame parts.Roller 14 limits at least one jointless (annular) fabric circulation 15 in wet end 12, in the machine of operation, fabric 16 goes in ring in this fabric circulation 15.In the embodiment that illustrates as an example, have two fabric 15 and two travelling platforms of circulation (travelling platform face) 11 here.

Have passage 17 at least one frame parts 13, fabric 16 can be introduced in the fabric circulation 15 that is between the frame parts and removes from this fabric circulation through this passage.In some fibre web machine, at least a portion of this passage is provided with (unshowned in the drawings) fabric introducing device.In most fiber web machine, but still adopt traditional cantilever, wherein a plurality of middlewares are arranged in described passage, and these middlewares will remove (not shown) from frame parts when draping more.

The floor level that travelling platform exceeds machine shop reaches several meters, and in order to climb up travelling platform, and adopt ledge structure.Two ledge structures 10 have been shown among Fig. 1.In practice, people arrive the travelling platform 11 of below from floor level through first step structure 10, and arrive the travelling platform 11 of top from here through second step structure 10.The identical parts of function are respectively with identical designated.Under the situation shown here, ledge structure is to extend along the direction of travelling platform, but it also may be oriented transverse to or even is inclined to the direction of this travelling platform.

In an illustrated embodiment, ledge structure is designed to the travelling platform of fiber web machine, has some other the advantage of mentioning hereinafter thus.In other words, in the embodiment in figure 1, ledge structure is set to be used on fiber web machine-travelling platform.Design of the present utility model can certainly with other processing industry (for example pulp mill, power plant and other corresponding factory/facility) in other travelling platform unite use.At this, travelling platform should be understood that to be easy to the persistence structure of the maintenance work in the process equipment, rather than interim/temporary transient scaffold etc. for example.In general, ledge structure 10 has at least two sidewalls 19 and is arranged on the ladder of being made by the sheet material that is bent between these two sidewalls 20.According to the utility model, each sidewall 19 also is to be made by the sheet material that is bent.The main member of this ledge structure also can be made by such sheet material, this sheet material easily deformable and also be easy in addition processing.As an example, this processing is laser cutting; It is as an example, so-called that shaping/distortion is bending, rolling and/or punching press.

Except the selection of material, in the utility model, also pay close attention to ladder fixing on sidewall.According to the utility model, the part 21 of ladder 20 extends through sidewall 19, and welding is set between ladder 20 and sidewall 19 connects 22(Fig. 3 b).Preferably, between the part of passing sidewall 19 21 of ladder 20 and sidewall 19, form welding and connect 22.The basic element of character at ladder 20 is formed with projection, and namely projection 23, and is formed with corresponding groove 24 at sidewall 19.In the assembling process of ledge structure, projection 23 passes sidewall 19 and is inserted in the groove 24, and by welding, preferably being fixed on the sidewall 19 by the TIG welding.The welding of carrying out from the outside itself is disposed simple and can be obtained fixing reliably.Because such structure, the major part of ladder load directly is delivered on the sidewall by projection.For clarity sake, welding connect 22 only the right side wall in Fig. 3 b 19 illustrate.The part 21 that can see ladder 20 in the left side is how to extend through sidewall 19.

Except projection, preferably, the anterior angle of ladder and relief angle also connect 25 be fixed (Fig. 3 b and Fig. 3 c) by welding.Therefore, this fixing itself realization by the short weld seam in proper position.Avoided the distortion that caused by sweating heat under the situation of the short weld seam of this external use.In Fig. 3 a, ladder 20 also has the recess 26 of being convenient to install and weld ladder.For example, water for cleaning can also pass these recesses and flows away.In Fig. 3 a, also be shown in broken lines the bending of carrying out at ladder 20 places.

Be bent the sidewall of being made by sheet material of shaping and ladder and the firm engagement by sidewall and ladder by use, realized extremely firm but very light structure.In the embodiment that illustrates as an example, the length of the sidewall of ledge structure is approximately four meters.Based on test with measure, in order to realize its purpose, even the quite thin plate that thickness is about the 1.5-2.0 millimeter can be used.Sidewall and ladder form self supporting structure together, and it only needs in the end to support, and does not need intermediate supports.This ledge structure can for example be fixed on the travelling platform by hinge then.If necessary, ledge structure can be raised to the level height of travelling platform, and is locked in maintenance position (Fig. 4).The quality of tested about four meters long ledge structures is only had an appointment 70 kilograms.Such ledge structure even can to form be dismountable, and it can be lifted on one side when needed.

In according to ledge structure of the present utility model, also considered manufacturability.According to the utility model, the sidewall 19 of parallel (parallel) extension is configured to cross an angle in a longitudinal direction, makes that the half-angle α between the sidewall is 2-7 °.In other words, sidewall extends in a longitudinal direction parallelly, but is separately shape and formation open angle from the end observation.In the ledge structure of making, the angle that is surrounded by two parallel sidewalls is 4-14 °.This gradient is convenient to make, because sidewall can be installed in the assembly fixture securely, and all projections of ladder can be inserted in the groove of sidewall quickly.And the welding of ladder also can be carried out at assembly fixture, can avoid the distortion that caused by sweating heat in this case, realizes size accurately and the accurate ledge structure of shape.The gradient of sidewall is paid attention to by the trapezoidal design of ladder.

According to the utility model, sidewall 19 comprises two bending parts 27 and 28 that oppositely point to each other.This sidewall also has good resistance to torsion except having preferably bearing capacity.Among the embodiment shown here, first bending part 27 is towards the inboard.At this, be used for supporting ladder by the part of bending in the fabrication stage, and form good position while welding.Second bending part 28 toward the outer side, and its part by bending has additional bending part, for example edge forging and pressing portion (Randstauchung).By this way, ledge structure has obtained the top edge of rigidity, but non-floating rail 29 on it.In illustrated situation, the vertical support member 30 that belongs to railing is also extended perpendicular to sidewall 19, and is wherein irrelevant with the inclination (gradient) of ledge structure, can adopt straight vertical support member all the time.By railing also being included in the fixation kit into ledge structure, the rigidity of total is improved further.Thus, can use always thinner sheet material.In Fig. 1, the orthogonality of vertical support member is represented by the vertical symbol that with dashed lines illustrates.

Ladder can also obtain extra reinforcement by bending part, and it has improved skid resistance simultaneously.Preferably, the stock of ladder was provided with a plurality of little openings before bending, and at least a portion wherein is stamped into from opening and projects upwards.By such opening, reduced the weight of this structure, and allowed water for cleaning to pass these ladders to flow away.Simultaneously, these crateriform " protuberances " have been set up effective anti-skidding.Also can use checker plate.Yet strive for that preferably the critical piece that is necessary that reaches ledge structure is included in its stock, and save the fixing of additional components.Thus, can simplify assembling, and prevent that the potential parts that may come off from entering into its operation.

In Fig. 3 c, the upper end of sidewall 19 has fixedly suspension ring 31, is used for ledge structure is fixed to for example travelling platform.Its fixed part for example can be made up of hinge above-mentioned, and in this case, whole ledge structure can be lifted to maintenance position (Fig. 4).Also show the arrangement pin 32 that is positioned at the ledge structure lower end in Fig. 1 and Fig. 3 c, it adjusts ledge structure to the use location in order to precision.

Formed very light but very firm self supporting structure again simultaneously according to ledge structure of the present utility model.Its manufactured materials is favourable, and processing method is simple.Measuring under the suitable situation, the assembling of ledge structure is saved time, and after the welding of back was finished, ledge structure need not subsequent treatment and can come into operation.

Claims (7)

1. ledge structure (10) that is used for travelling platform comprises at least two sidewalls (19) and is arranged between the described sidewall by the ladder that is formed by the sheet material of bending (20), it is characterized in that each sidewall (19) also is by being formed by the sheet material of bending.

2. ledge structure according to claim 1 is characterized in that, the part (21) of described ladder (20) extends through described sidewall (19), and exists welding to connect (22) between described ladder (20) and described sidewall (19).

3. ledge structure according to claim 1 is characterized in that, described ledge structure (10) is arranged on the travelling platform of fiber web machine.

4. ledge structure according to claim 2 is characterized in that, described ledge structure (10) is arranged on the travelling platform of fiber web machine.

5. according to each described ledge structure in the claim 1 to 4, it is characterized in that, described sidewall (19) parallel alignment in a longitudinal direction, and be configured to cross jointly an angle, make that the half-angle (α) between the described sidewall (19) is 2-7 °.

6. according to each described ledge structure in the claim 1 to 4, it is characterized in that each sidewall (19) comprises two bending parts (27,28) that point to along opposite directions.

7. ledge structure according to claim 5 is characterized in that, each sidewall (19) comprises two bending parts (27,28) that point to along opposite directions.

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