Double-sling suspension system of suspension grouting bridge fabrication machine

Abstract

The invention discloses a double-sling suspension system of a suspension grouting bridge fabrication machine, and belongs to the technical field of highway and railway bridge concrete construction. The lifting mechanism is positioned between the leveling carrying pole beam and the front upper cross beam and is in driving connection with the leveling carrying pole beam; the two sling carrying pole beams are arranged at the lower end of the leveling carrying pole beam at intervals and are arranged on the two sides of the lifting mechanism; the two hanging belts are arranged corresponding to the leveling carrying pole beam, one end of each hanging belt is connected with a hinge lug pin shaft of the hanging seat of the front lower cross beam, and the other end of each hanging belt sequentially penetrates through the middle of the front upper cross beam, the hanging belt carrying pole beam and the leveling carrying pole beam; and the two fine adjustment mechanisms are arranged corresponding to the two sling carrying pole beams, and the fine adjustment mechanisms are arranged between the sling carrying pole beams and the front upper cross beam. The lifting points are reduced to four, the adjusting efficiency of the bottom die is improved by 1 / 3, and the problems of large labor intensity, mutual restriction and poor stress of manual control due to multiple lifting points are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of highway and railway bridge concrete construction, and in particular relates to a double-sling suspension system for a suspended concrete bridge-building machine. Background Art

[0002] The existing suspended bridge-building machine or hanging basket has 6 suspension points (suspenders or slings) for the front upper beam and the front lower beam, all of which use single-point single suspension rods or slings. The suspension rods are made of fine-rolled threaded steel and the slings are steel belts. The lower part of the suspension point is hinged and the upper part is bolted. The upper and lower adjustment positions are manually controlled by a chain fall (reference Figure 1 and Figure 2 ).

[0003] The main problems of existing suspended concrete bridge-building machines or hanging baskets are as follows:

[0004] 1. There are many hanging points, the labor intensity of manual control is high, and they restrict each other and the force is not good.

[0005] 2. The manual adjustment accuracy of the chain fall is low, and the template is not easy to adjust into place.

[0006] 3. The degree of mechanization and automation is low, and the safety risks are high. Summary of the invention

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A double-sling suspension system for a suspended concrete bridge-building machine, comprising:

[0009] a leveling shoulder pole beam located at the upper end of the front upper cross beam;

[0010] A lifting mechanism, the lifting mechanism is located between the leveling pole beam and the front upper cross beam and is drivingly connected to the leveling pole beam to adjust the distance between the leveling pole beam and the front upper cross beam;

[0011] Two sling shoulder pole beams, which are arranged at intervals at the lower end of the leveling shoulder pole beam and at both sides of the lifting mechanism;

[0012] 2 slings, the 2 slings are arranged corresponding to the leveling pole beam, wherein one end of the sling is connected to the hinge ear pin of the front lower crossbeam hanger seat, and the other end passes through the middle part of the front upper crossbeam, the sling pole beam, and the leveling pole beam in sequence, and the sling is respectively connected to the sling pole beam and the leveling pole beam by an upper connecting pin;

[0013] Two fine-adjustment mechanisms are provided corresponding to the two sling shoulder pole beams, and the fine-adjustment mechanisms are provided between the sling shoulder pole beams and the front upper cross beam to drive the sling shoulder pole beams to approach or move away from the front upper cross beam, thereby controlling the sling to be precisely adjusted into place, thereby realizing precise adjustment of the bottom mold height.

[0014] Furthermore, the fine-tuning mechanism comprises:

[0015] A locking screw, one end of which is fixedly connected to the sling shoulder beam, and the other end of which is vertically inserted into the screw hole on the front upper cross beam;

[0016] A nut is arranged on a side of the front upper cross beam close to the sling shoulder pole beam, and cooperates with the locking screw to drive the sling shoulder pole beam to approach or move away from the front upper cross beam.

[0017] Furthermore, the leveling shoulder pole beam is a box-shaped section, and the sling shoulder pole beam is an open box-shaped section.

[0018] Furthermore, the lifting mechanism is a hydraulic cylinder.

[0019] Furthermore, it also includes a wireless control module, which is connected to the hydraulic cylinder by wireless signals to control the hydraulic cylinder to drive the leveling shoulder beam to move closer to or away from the front upper cross beam, thereby achieving a rough adjustment of the position of the sling.

[0020] Beneficial effects:

[0021] 1. The present invention reduces the number of hanging points to 4 points through a double-sling suspension system, improves the adjustment efficiency of the bottom mold by 1 / 3, and solves the problems of high labor intensity, mutual restriction and poor force bearing caused by manual control of multiple hanging points.

[0022] 2. The present invention adopts wireless remote control operation + hydraulic control, with high mechanization and automation, which solves the problems of low precision of manual adjustment of the chain fall and difficulty in adjusting the template, and greatly reduces safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the existing suspended concrete bridge machine is shown in FIG. Figure 1 ;

[0024] Figure 2 The structure of the existing suspended concrete bridge machine is shown in FIG. Figure 2 ;

[0025] Figure 3 A front view of a double-sling suspension system for a suspended grouting bridge-building machine provided by the present invention;

[0026] Figure 4A left side view of a double-sling suspension system of a suspended grouting bridge-building machine provided by the present invention;

[0027] Figure 5 A front view of a hydraulic cylinder in a lifting state in a double-sling suspension system of a suspended concrete bridge-building machine provided by the present invention;

[0028] Figure 6 A left view of a hydraulic cylinder in a lifting state in a double-sling suspension system of a suspended grouting bridge-building machine provided by the present invention;

[0029] Figure 7 It is a schematic diagram of the locking screw structure;

[0030] Figure 8 A schematic diagram of the working state structure of the double-sling suspension system of the suspended grouting bridge-building machine provided by the present invention;

[0031] Among them: 1. sling; 2. leveling pole beam; 3. sling pole beam; 4. locking screw; 5. hydraulic cylinder; 6. upper connecting pin; 7. lower connecting pin. DETAILED DESCRIPTION

[0032] Example 1

[0033] refer to Figure 3-Figure 8 , a double-sling suspension system for a suspended concrete bridge-building machine, comprising:

[0034] a leveling shoulder beam 2 located at the upper end of the front upper cross beam;

[0035] A lifting mechanism, the lifting mechanism is located between the leveling pole beam 2 and the front upper crossbeam, and is drivingly connected to the leveling pole beam 2 to adjust the distance between the leveling pole beam 2 and the front upper crossbeam;

[0036] Two sling shoulder pole beams 3, which are arranged at intervals at the lower end of the leveling shoulder pole beam 2 and are arranged on both sides of the lifting mechanism;

[0037] Two slings 1, the two slings 1 are arranged correspondingly to the leveling pole beam 2, wherein one end of the sling 1 is connected to the hinge ear pin of the front lower crossbeam hanger seat, and the other end passes through the middle part of the front upper crossbeam, the sling pole beam 3, and the leveling pole beam 2 in sequence, and the sling 1 is respectively connected to the sling pole beam 3 and the leveling pole beam 2 by an upper connecting pin 6;

[0038] Two fine-adjustment mechanisms are provided corresponding to the two sling shoulder pole beams 3, and the fine-adjustment mechanisms are provided between the sling shoulder pole beams 3 and the front upper cross beam to drive the sling shoulder pole beams 3 to approach or move away from the front upper cross beam, thereby controlling the sling 1 to be precisely adjusted into place, thereby realizing precise adjustment of the bottom mold height.

[0039] In this embodiment, a plurality of pin holes are evenly spaced on the sling 1; the hole distance between two adjacent pin holes can be adaptively adjusted according to actual usage.

[0040] In this embodiment, the end of the sling 1 away from the front upper cross beam is connected to the front lower cross beam hanger hinge ear through the lower connecting pin 7.

[0041] In this embodiment, the leveling shoulder pole beam 2 mainly bears the pulling force of the slings 1 on both sides when the lifting mechanism is lifting.

[0042] In this embodiment, the fine-tuning mechanism includes:

[0043] A locking screw 4, one end of which is fixedly connected to the sling shoulder beam 3, and the other end of which is vertically inserted into the screw hole on the front upper cross beam;

[0044] The nut is arranged on one side of the front upper cross beam close to the sling shoulder pole beam 3 and cooperates with the locking screw 4 to drive the sling shoulder pole beam 3 to approach or move away from the front upper cross beam.

[0045] When fine adjustment is required, the nut is rotated to move the position of the locking screw 4 up and down, and then the sling 1 is driven to move up and down through the sling shoulder beam 3 to achieve precise adjustment of the bottom mold height.

[0046] In this embodiment, the leveling shoulder pole beam 2 is a box-shaped section, and the sling shoulder pole beam 3 is an open box-shaped section.

[0047] In this embodiment, the lifting mechanism is a hydraulic cylinder 5 .

[0048] The double-sling suspension system for the suspended grouting bridge-building machine provided in this embodiment also includes a wireless control module, which is connected to the hydraulic cylinder 5 by wireless signals to control the hydraulic cylinder 5 to drive the leveling shoulder beam 2 to move closer to or away from the front upper cross beam, thereby achieving a rough adjustment of the position of the sling 1.

[0049] The double-sling suspension system of the suspended grouting bridge-building machine provided by the present invention is a suspension point between the front upper beam and the front lower beam of the hanging basket or bridge-building machine, and its main function is to bear the concrete load at the front end of the continuous beam and the deadweight load of the template. Among them, the double-sling suspension system optimizes the two suspension points on the left and right sides of the original continuous beam web into one suspension point on the inner side of the web. The main structure of the suspension point adopts a sling structure, and the operation adopts wireless remote control. The control module controls the hydraulic cylinder to achieve rough adjustment of the sling up and down in place, and then, the nut is rotated by a wrench on the front upper beam platform to control the sling to be accurately adjusted in place. Its operation is safe and efficient, and the degree of mechanization and automation is high.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A double-sling suspension system for a suspended concrete bridge-building machine, characterized in that: include: a leveling shoulder beam located at the upper end of the front upper cross beam; A lifting mechanism, the lifting mechanism is located between the leveling pole beam and the front upper cross beam and is drivingly connected to the leveling pole beam to adjust the distance between the leveling pole beam and the front upper cross beam; Two sling shoulder pole beams, which are arranged at intervals at the lower end of the leveling shoulder pole beam and at both sides of the lifting mechanism; 2 slings, the 2 slings are arranged corresponding to the leveling pole beam, wherein one end of the sling is connected to the hinge ear pin of the front lower crossbeam hanger seat, and the other end passes through the middle part of the front upper crossbeam, the sling pole beam, and the leveling pole beam in sequence, and the sling is respectively connected to the sling pole beam and the leveling pole beam by an upper connecting pin; Two fine-adjustment mechanisms are provided corresponding to the two sling shoulder pole beams, and the fine-adjustment mechanisms are provided between the sling shoulder pole beams and the front upper cross beam to drive the sling shoulder pole beams to approach or move away from the front upper cross beam, thereby controlling the sling to be precisely adjusted into place, thereby realizing precise adjustment of the bottom mold height.

2. The double-sling suspension system for suspended concrete bridge-building machine according to claim 1 is characterized in that: The fine-tuning mechanism comprises: A locking screw, one end of which is fixedly connected to the sling shoulder beam, and the other end of which is vertically inserted into the screw hole on the front upper cross beam; A nut is arranged on a side of the front upper cross beam close to the sling shoulder pole beam, and cooperates with the locking screw to drive the sling shoulder pole beam to approach or move away from the front upper cross beam.

3. The double-sling suspension system for suspended concrete bridge-building machine according to claim 1 is characterized in that: The leveling shoulder pole beam is a box-shaped section, and the sling shoulder pole beam is an open box-shaped section.

4. The double-sling suspension system for suspended concrete bridge-building machine according to claim 1 is characterized in that: The lifting mechanism is a hydraulic cylinder.

5. The double-sling suspension system for suspended concrete bridge-building machine according to claim 4 is characterized in that: It also includes a wireless control module, which is connected to the hydraulic cylinder by wireless signals to control the hydraulic cylinder to drive the leveling pole beam to move closer to or away from the front upper cross beam, thereby achieving a rough adjustment of the position of the sling.

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