Front supporting leg supporting structure of bridge girder erection machine

Abstract

The utility model discloses a front landing leg supporting structure of a bridge girder erection machine, which relates to the technical field of bridge construction, and comprises a structure main body and a front landing leg body, the upper side of the structure main body is fixedly connected with a vertical rod, and the front landing leg body is placed at the upper end of the vertical rod in an abutting manner; the upper side of the structure body is slidably connected with two sets of symmetrically-arranged supporting seats, the upper ends of the supporting seats are provided with step faces, the plane layers of the step faces are provided with first clamping grooves and second clamping grooves, the bottom of the front supporting leg body is provided with a sliding positioning mechanism, and the two sides of each supporting seat are fixedly connected with hanging rings. Mounting seats are fixedly connected to the center and two ends of the upper side of the structure main body, and stretching mechanisms are mounted on the upper sides of the mounting seats. The device can assist the bridge girder erection machine in lifting the front supporting leg, on one hand, the power loss of the bridge girder erection machine is reduced, an auxiliary effect is achieved, on the other hand, it can be guaranteed that the front supporting leg is kept in a balanced and stable state in the lifting process, and the construction safety in the lifting process of the front supporting leg of the bridge girder erection machine is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field, specifically, relate to a front support leg support structure of erecting bridge machine. BACKGROUND

[0002] In the field of bridge construction, erecting bridge machine as the key construction equipment, undertakes the bridge prefabricated piece hoisting and splicing heavy responsibility. Among them, the front support leg as the important component of erecting bridge machine, not only bears the weight of the front of erecting bridge machine, also is directly related to the stability and safety in the construction process. The front support leg support structure of traditional erecting bridge machine mostly adopts fixed or manual adjustment mode to adapt to the construction demand of different height. However, these traditional ways have many deficiencies, especially in the large bridge construction project needing frequent adjustment of front support leg height, its operation is cumbersome, inefficient, and causes great burden to the power system of erecting bridge machine.

[0003] Specifically, the fixed support structure lacks flexibility, is difficult to meet the demand of complex and changeable construction environment, and the manual adjustment mode depends on manual operation, not only time-consuming and laborious, but also has the security risk caused by improper operation, in addition, the traditional support structure often lacks effective balance and stability mechanism when lifting the front support leg height, leading to the decline of the overall stability of erecting bridge machine, increasing the construction risk, therefore, aiming at the above technical problems, a front support leg support structure of erecting bridge machine is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a front support leg support structure of erecting bridge machine, which can assist the lifting of the front support leg of erecting bridge machine, on the one hand, reduces the power loss of erecting bridge machine, plays an auxiliary role, on the other hand, can also ensure that the front support leg keeps balanced and stable state in the lifting process, greatly improves the construction safety in the lifting process of the front support leg of erecting bridge machine.

[0005] The utility model realizes by the following technical schemes:

[0006] A front support leg support structure of erecting bridge machine, including structure main part and front support leg body, the upside of structure main part is fixedly connected with vertical rod, and the front support leg body is placed in abutment on the upper end of vertical rod;

[0007] The upside of structure main part is slidably connected with two groups of symmetrically arranged support seats, the upper end of support seat is provided with stepped surface, and the stepped surface is smooth, the plane layer of stepped surface is provided with first clamping groove and second clamping groove, the bottom of front support leg body is provided with sliding positioning mechanism, the both sides of support seat are fixedly connected with hanging ring, the upside center part and both ends of structure main part are fixedly connected with mounting seat, the upside of mounting seat is provided with stretching mechanism.

[0008] Preferably, the number of the vertical rods is two groups and arranged symmetrically, and the two groups of the vertical rods are fixedly connected with the reinforcing support.

[0009] Preferably, the upper side of the structure body is provided with a sliding groove, the bottom of the support seat is fixedly connected with a sliding block, and the sliding block and the sliding groove are in sliding connection.

[0010] Preferably, the sliding positioning mechanism comprises a connecting piece, a pulley and a wedge-shaped inserting rod, the connecting piece is fixedly connected to the bottom of the front support leg body, the inner side of the connecting piece is rotatably connected with the pulley, the pulley is matched with the first clamping groove, and the wedge-shaped inserting rod is fixedly connected to the bottom of the front support leg body.

[0011] Preferably, the wedge-shaped inserting rod is matched with the second clamping groove, and the wedge-shaped inserting rod is provided with an inclined surface towards the two sides of the front support leg body, and the number of the connecting piece and the wedge-shaped inserting rod is several groups and arranged symmetrically.

[0012] Preferably, the stretching mechanism comprises an electric hoist, a rotating rod and a steel cable, the electric hoist is detachably connected to the inner side of the mounting seat, the rotating rod is fixedly connected to the upper side of the electric hoist, and the steel cable is wound and fixedly connected to the outside of the rotating rod.

[0013] Preferably, the end of the steel cable is fixedly connected to the outside of the hanging ring.

[0014] The technical scheme of the utility model has at least the following beneficial effects:

[0015] The utility model discloses a front support leg supporting structure of a bridge erecting machine, through the mounting seat of the middle part of operation, the electric hoist in its inside is operated, the support seat of left and right sides slides to the middle part, under the action of force, the inclined surface of wedge-shaped inserting rod and the second clamping groove are forced out, and under the auxiliary sliding action of the pulley, the wedge-shaped inserting rod can slide on the stepped surface of the support seat upwards, until reaches the next plane layer and is clamped into the second clamping groove, and the positioning support of the front support leg is completed, so as to assist the bridge erecting machine to lift the front support leg, on the one hand, reduces the power loss of the bridge erecting machine, plays the auxiliary role, on the other hand, can also guarantee that the front support leg keeps the balanced state in the process of rising, greatly improves the construction safety in the process of the front support leg of the bridge erecting machine and lifts. ACCOUT OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 The enlarged view of A;

[0018] Figure 3 It is Figure 1 The enlarged view of B;

[0019] Figure 4 For Figure 1 Enlarged view of C in the middle;

[0020] Icon: 1, the structure body; 2, the front leg body; 3, the vertical rod; 4, the reinforcing support; 5, the support seat; 6, the sliding groove; 7, the sliding block; 8, the stepped surface; 9, the first clamping groove; 10, the second clamping groove; 11, the connecting piece; 12, the pulley; 13, the wedge-shaped insertion rod; 14, the mounting seat; 15, the electric hoist; 16, the rotating rod; 17, the steel cable; 18, the hanging ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a front leg support structure of a bridge girder erection machine, which comprises a structure body 1 and a front leg body 2. The upper side of the structure body 1 is fixedly connected with a vertical rod 3, and the front leg body 2 is placed in abutment on the upper end of the vertical rod 3.

[0023] The upper side of the structure body 1 is slidably connected with two groups of symmetrically arranged support seats 5. The upper end of each support seat 5 is provided with a stepped surface 8, which is treated to be smooth. The plane layer of the stepped surface 8 is provided with a first clamping groove 9 and a second clamping groove 10. The bottom of the front leg body 2 is provided with a sliding positioning mechanism. The two sides of each support seat 5 are fixedly connected with a hanging ring 18. The upper side of the central part and both ends of the structure body 1 are fixedly connected with mounting seats 14. The upper side of each mounting seat 14 is provided with a stretching mechanism. The stretching mechanisms installed on the mounting seats 14 arranged at both ends are convenient for pulling the support seats 5 apart from each other when it is necessary to control the front leg to move downward, thereby achieving the purpose of descending.

[0024] The two groups of vertical rods 3 are symmetrically arranged and fixedly connected with reinforcing supports 4. The vertical rods 3 can provide the initial support effect for the front leg body 2, and the reinforcing supports 4 can enhance the support strength of the vertical rods 3.

[0025] The upper side of the structure body 1 is provided with a sliding groove 6. The bottom of each support seat 5 is fixedly connected with a sliding block 7, which is in sliding connection with the sliding groove 6.

[0026] The sliding positioning mechanism comprises a connecting piece 11, a pulley 12 and a wedge-shaped inserting rod 13, the connecting piece 11 is fixedly connected to the bottom of the front support body 2, the inner side of the connecting piece 11 is rotatably connected with the pulley 12, and the pulley 12 is matched with the first clamping groove 9, and the wedge-shaped inserting rod 13 is fixedly connected to the bottom of the front support body 2.

[0027] The wedge-shaped inserting rod 13 is matched with the second clamping groove 10, and the wedge-shaped inserting rod 13 is provided with a slope towards the two sides of the front support body 2, and the number of the connecting piece 11 and the wedge-shaped inserting rod 13 is several groups and is symmetrically arranged.

[0028] The stretching mechanism comprises an electric hoist 15, a rotating rod 16 and a steel cable 17, the electric hoist 15 is detachably connected to the inner side of the mounting seat 14, the rotating rod 16 is fixedly connected to the upper side of the electric hoist 15, the steel cable 17 is wound and fixedly connected to the outer side of the rotating rod 16, and the end of the steel cable 17 is fixedly connected to the outer side of the hanging ring 18.

[0029] The working principle of the front support structure of the bridge machine based on the embodiment is that when the front support of the bridge machine is supported by the structure, if the height of the front support of the bridge machine needs to be lifted for construction, at this time, the electric hoist 15 in the mounting seat 14 at the middle part is operated to control the rotating rod 16 to rotate to wind the steel cables 17 on the left and right sides, so that the support seats 5 on the left and right sides slide to the middle part, at this time, the first clamping groove 9 is clamped and positioned with the pulley 12, and the second clamping groove 10 is clamped and positioned with the wedge-shaped inserting rod 13, due to the force, the slope of the wedge-shaped inserting rod 13 is extruded with the second clamping groove 10, and under the auxiliary sliding action of the pulley 12, the wedge-shaped inserting rod 13 can slide up on the stepped surface 8 of the support seat 5 until reaching the next plane layer and being clamped into the second clamping groove 10, and the positioning and supporting of the front support are completed, so that the front support of the bridge machine is lifted, on the one hand, the power loss of the bridge machine is reduced, and the auxiliary effect is achieved, on the other hand, the balance and stability of the front support during the lifting process are ensured, and the construction safety during the lifting process of the front support of the bridge machine is greatly improved.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A front leg support structure of a bridge launching machine, characterized by: Including structural body (1) and front support body (2), the upper side of the structural body (1) is fixedly connected with a vertical rod (3), and the front support body (2) is placed in abutment on the upper end of the vertical rod (3); The upper side of the structural body (1) is slidably connected with two groups of symmetrically arranged support seats (5), the upper end of the support seat (5) is provided with a stepped surface (8), and the stepped surface (8) is smooth treated, the plane layer of the stepped surface (8) is provided with a first clamping groove (9) and a second clamping groove (10), the bottom of the front support body (2) is provided with a sliding positioning mechanism, the two sides of the support seat (5) are fixedly connected with a hanging ring (18), the upper side of the central part and both ends of the structural body (1) are fixedly connected with a mounting seat (14), and the upper side of the mounting seat (14) is provided with a stretching mechanism.

2. A front leg support structure for a bridge-launching machine according to claim 1, characterized in that: The number of the vertical rod (3) is two groups and symmetrically arranged, and the two groups of vertical rods (3) are fixedly connected with a reinforcing support (4).

3. The front leg support structure of a bridge-launching machine according to claim 1, characterized by: The upper side of the structural body (1) is provided with a sliding groove (6), the bottom of the support seat (5) is fixedly connected with a sliding block (7), and the sliding block (7) and the sliding groove (6) are slidably connected.

4. The front leg support structure of a bridge-launching machine according to claim 1, characterized by: The sliding positioning mechanism comprises a connecting piece (11), a pulley (12) and a wedge-shaped inserting rod (13), the connecting piece (11) is fixedly connected to the bottom of the front support body (2), the inner side of the connecting piece (11) is rotatably connected with the pulley (12), and the pulley (12) is matched with the first clamping groove (9), and the wedge-shaped inserting rod (13) is fixedly connected to the bottom of the front support body (2).

5. A front leg support structure for a bridge-launching machine according to claim 4, characterized in that: The wedge-shaped inserting rod (13) is matched with the second clamping groove (10), and the wedge-shaped inserting rod (13) is provided with a slope towards the two sides of the front support body (2), and the number of the connecting piece (11) and the wedge-shaped inserting rod (13) is several groups and symmetrically arranged.

6. The front leg support structure of a bridge-launching machine according to claim 1, characterized by: The stretching mechanism comprises an electric hoist (15), a rotating rod (16) and a steel cable (17), the electric hoist (15) is detachably connected to the inner side of the mounting seat (14), the rotating rod (16) is fixedly connected to the upper side of the electric hoist (15), and the steel cable (17) is wound and fixedly connected to the outside of the rotating rod (16).

7. A front leg support structure for a bridge-launching machine according to claim 6, characterized in that: The end of the steel cable (17) is fixedly connected to the outside of the hanging ring (18).

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