Telescopic ladder stand at support carrying position of bridge girder erection machine

Abstract

The utility model discloses a telescopic ladder stand at a support carrying position of a bridge girder erection machine, and belongs to the technical field of auxiliary devices of large road and bridge construction equipment. The camel frame comprises a camel frame base, a pair of hydraulic telescopic stand columns is arranged on the camel frame base. A cross beam is arranged at the movable end of the hydraulic telescopic stand column; a first crawling ladder and a second crawling ladder are respectively arranged on the camel frame base and the cross beam; the second crawling ladder can vertically move relative to the camel frame base along with the cross beam and the movable end of the hydraulic telescopic stand column; the lower end of the second crawling ladder is movably mounted on the first crawling ladder; the climbing ladder effectively solves the problem that labor cost and working time are increased due to the fact that workers only can additionally arrange the climbing ladder when wanting to climb the current camel frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to large -scale road and bridge construction equipment auxiliary device technical field, concretely relates to a telescopic ladder stand of bridge -erecting machine. BACKGROUND

[0002] The dolly of the bridge -erecting machine plays an important role in the field conversion and dolly construction organization method. After the erection of a bridge is completed, the bridge -erecting machine needs to be transferred to the next bridge to continue construction. At this time, the beam transport vehicle lifts and supports the bridge -erecting machine through the dolly, so that it can be safely transferred between bridges. The dolly needs to be aligned first to ensure the reliable connection between the two when supporting the bridge -erecting machine, which requires the staff to climb to the top beam position of the dolly for inspection and operation. However, there is a lack of ladder stand equipment on the current dolly structure, and the staff can only rely on additional arrangement of ladder stand. This increases the additional labor cost and working time in the entire operation process. This is also the main problem to be solved by the present application. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a telescopic ladder stand at the dolly of the bridge -erecting machine to solve the problem that the staff can only use additional ladder stand when climbing the current dolly, resulting in increased labor cost and working time.

[0004] To solve the above problems, the utility model provides the following technical scheme:

[0005] A telescopic ladder stand at the dolly of the bridge -erecting machine; it includes a dolly base; a pair of hydraulic telescopic columns are arranged on the dolly base; a cross beam is arranged on the movable end of the hydraulic telescopic column; a first ladder stand and a second ladder stand are arranged on the dolly base and the cross beam respectively; the second ladder stand can move vertically relative to the dolly base along with the cross beam and the movable end of the hydraulic telescopic column; the lower end of the second ladder stand is movably installed on the first ladder stand.

[0006] Preferably, the number of cross beams is at least two, and a plurality of reinforcing bars are arranged between the cross beams; the upper and lower sides of the second ladder stand are fixed on the cross beams, and the middle part is fixed on the reinforcing bars.

[0007] Preferably, two groups of ear plates are arranged on the dolly base opposite the position of the cross beam; the lower bottom of the left and right side ladder beams of the first ladder stand is installed through the ear plate.

[0008] Preferably, guide grooves are arranged on the ladder beams on both sides of the second ladder stand; the guide grooves are arranged vertically, and the size of the groove opening of the guide groove is consistent with the size of the ladder beams on both sides of the first ladder stand.

[0009] Further, the ladder beams on both sides of the second ladder are made of C-shaped steel; the C-shaped steel is fixed on the cross beam at the back end face; the ladder bars of the second ladder are arranged on the front end face of the C-shaped steel; the ladder beams on both sides of the first ladder are inserted into the second ladder from the notch of the C-shaped steel.

[0010] Further, the top of the ladder beams on both sides of the first ladder is also provided with a roller; the ladder bars of the first ladder are arranged between the ladder beams, and the ladder bars of the two ladders do not interfere with each other when the second ladder moves relative to the first ladder.

[0011] The utility model has the advantages of:

[0012] The utility model provides a telescopic ladder which is arranged on the camel frame of a bridge erecting machine, two ladders are arranged on the base and the cross beam of the camel frame in the vertical direction, and the two ladders can be telescoped in the vertical direction, so that the cross beam and the base of the camel frame can always provide effective ladder components before and after the telescopic hydraulic column is telescoped, and the staff can conveniently go up and down the camel frame to check the corresponding working connection state. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model in the embodiment;

[0014] Figure 2 It is Figure 1 It is a schematic diagram when the telescopic hydraulic column of the device in the embodiment is in the stretched state;

[0015] Figure 3 It is a downward view of the first ladder and the second ladder in the embodiment;

[0016] Mark 1, camel frame base, 2, telescopic hydraulic column, 3, cross beam, 4, first ladder, 5, second ladder, 6, reinforcing rib, 7, ear plate, 8, roller. DETAILED DESCRIPTION

[0017] The utility model will be further introduced in combination with the drawings and specific embodiments:

[0018] Embodiment:

[0019] Refer to Figure 1 The embodiment provides a telescopic ladder at the camel frame of a bridge erecting machine; it comprises a camel frame base 1; a pair of telescopic hydraulic columns 2 are arranged on the camel frame base 1; a cross beam 3 is arranged on the movable end of the telescopic hydraulic column 2; a first ladder 4 and a second ladder 5 are arranged on the camel frame base 1 and the cross beam 3 respectively; the second ladder 5 can move in the vertical direction relative to the camel frame base 1 along with the cross beam 3 and the movable end of the telescopic hydraulic column 2; the lower end of the second ladder 5 is movably installed on the first ladder 4.

[0020] The number of the cross beams 3 is at least two, and a plurality of reinforcing ribs 6 are arranged between the cross beams 3; the upper and lower sides of the second ladder 5 are fixed on the cross beams 3, and the middle part is fixed on the reinforcing ribs 6.

[0021] Two groups of ear plates 7 are arranged on the saddle base 1 and opposite to the cross beams 3; the lower bottom of the left and right ladder beams of the first ladder 5 is installed through the ear plates 7.

[0022] The guiding grooves are arranged on the ladder beams on both sides of the second ladder 5; the guiding grooves are arranged vertically, and the size of the groove of the guiding groove is consistent with the size of the ladder beams on both sides of the first ladder 4.

[0023] The ladder beams on both sides of the second ladder 5 are made of C-shaped steel; the back end face of the C-shaped steel is fixed on the cross beam 3; the tread bar of the second ladder 5 is arranged on the front end face of the C-shaped steel; the ladder beams on both sides of the first ladder 4 are inserted into the second ladder 5 from the slot of the C-shaped steel.

[0024] The rollers 8 are arranged on the top of the ladder beams on both sides of the first ladder 4; the tread bar of the first ladder 4 is arranged between the ladder beams, and the tread bars of the two ladders do not interfere with each other when the second ladder 5 moves relative to the first ladder 4. In the embodiment, the longest length of the first ladder inserted into the second ladder is greater than the maximum extension length of the hydraulic telescopic column.

[0025] When the device of the utility model is used, it is only necessary to ensure whether the connection between the first ladder and the second ladder corresponding to the saddle base and the cross beam is stable, and then with the action of the hydraulic telescopic column, the first ladder will be telescoped in the ladder beams in the second ladder, so that the workers can move on the ladders.

Claims

1. A telescopic ladder for the frame of a bridge erecting machine, comprising a frame base (1); a pair of hydraulic telescopic columns (2) provided on the frame base (1); and a crossbeam (3) provided on the movable end of the hydraulic telescopic columns (2); characterized in that: A first ladder (4) and a second ladder (5) are respectively provided on the camel frame base (1) and the crossbeam (3); the second ladder (5) can move vertically relative to the camel frame base (1) along with the movable end of the crossbeam (3) and the hydraulic telescopic column (2); the lower end of the second ladder (5) is movably fitted onto the top of the first ladder (4).

2. The telescopic ladder at the support frame of a bridge erecting machine according to claim 1, characterized in that: There are at least two crossbeams (3), and several reinforcing ribs (6) are provided between the crossbeams (3); the upper and lower sides of the second ladder (5) are fixed to the crossbeams (3), and the middle part is fixed to the reinforcing ribs (6).

3. The telescopic ladder at the support frame of a bridge erecting machine according to claim 1, characterized in that: Two sets of ear plates (7) are also installed on the camel frame base (1) directly opposite the crossbeam (3); the bottom of the left and right side ladder beams of the first ladder (4) are installed through the ear plates (7).

4. The telescopic ladder at the support frame of a bridge erecting machine according to claim 1, characterized in that: Guide grooves are provided on the ladder beams on both sides of the second ladder (5); the guide grooves are arranged vertically, and the size of the guide groove opening is consistent with the size of the ladder beams on both sides of the first ladder (4).

5. A telescopic ladder at the support frame of a bridge erecting machine according to claim 1 or 4, characterized in that: The ladder beams on both sides of the second ladder (5) are made of C-shaped steel; the back end face of the C-shaped steel is fixed to the crossbeam (3); the treads of the second ladder (5) are set on the front end face of the C-shaped steel; the ladder beams on both sides of the first ladder (4) are inserted into the second ladder (5) from the slot of the C-shaped steel.

6. The telescopic ladder at the support frame of a bridge erecting machine according to claim 5, characterized in that: Rollers (8) are also provided on the top of the ladder beams on both sides of the first ladder (4); the steps of the first ladder (4) are set between the ladder beams, and the steps of the second ladder (5) do not interfere with each other when the second ladder (5) moves relative to the first ladder (4).

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