Automatic heating and cutting equipment for steel box girder installation

Abstract

The utility model is applicable to the technical field of related equipment for mounting a steel box girder, and provides automatic heating and cutting equipment for mounting the steel box girder, which comprises a supporting seat and a cutting mechanism, the cutting mechanism is connected to the supporting base, and an integral structure formed by the supporting base and the cutting mechanism is placed at the position, needing to be cut, of the steel box girder. The cutting mechanism comprises a linkage cutting unit and a protection unit, the linkage cutting unit comprises a lead screw, a linkage seat, a threaded sleeve and a flame cutter, the lead screw is rotationally connected between the two adjacent supporting seats, and the linkage seat is slidably connected to the lead screw. According to the scheme, a linkage cutting unit in the cutting mechanism drives a linkage base to be matched with a lead screw for threaded linkage, then a flame cutter is driven to move horizontally, cutting operation on the steel box girder is achieved, when the linkage base abuts against a supporting base, an internal structure of a protection unit is in linkage, a threaded sleeve can rotate freely, and the cutting efficiency is improved. And therefore, the situation that the screw rod slips due to threaded linkage of the threaded sleeve and the screw rod is avoided, and the device is simple, practical and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of related equipment for steel box girder installation, and particularly relates to automatic heating and cutting equipment for steel box girder installation. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a common structural form for large-span bridges. It is generally used on bridges with larger spans. It is called a steel box girder because of its box-like appearance. Steel box girders are generally connected by a full welding method including top plate, bottom plate, web plate, transverse diaphragm, longitudinal diaphragm and stiffening ribs. When installing steel box girders, it is often necessary to use an automatic heating cutting device to cut them appropriately.

[0003] Although there are many kinds of automatic heating cutting devices at present, there are still some problems. For example, in the current cutting devices, it is generally necessary to cooperate with the translation mechanism to drive the flame cutter to move in a straight line to ensure that the cutting route always remains in a straight line. The translation mechanism is generally driven by a screw rod to drive the cutting mechanism thread linkage. However, when driving to both ends of the device, if the screw rod continues to rotate, it will cause the threads to be misaligned and engaged with each other, which will cause the threads to slip and cause damage to the device. Utility Model Content

[0004] The utility model provides an automatic heating and cutting device for installing a steel box beam, aiming to solve the problem that a screw rod in the device is prone to slipping.

[0005] The utility model is implemented as follows: an automatic heating and cutting device for installing a steel box beam comprises: a support seat and a cutting mechanism;

[0006] The cutting mechanism is connected to the support seat, and the overall structure consisting of the support seat and the cutting mechanism is placed at the position where the steel box girder needs to be cut;

[0007] The cutting mechanism includes a linkage cutting unit and a protection unit. The linkage cutting unit includes a screw rod, a linkage seat, a threaded sleeve and a flame cutter. The screw rod is rotatably connected between two adjacent support seats. The linkage seat is slidably connected to the screw rod. The threaded sleeve is rotatably connected inside the linkage seat. A screw hole is penetrated in the threaded sleeve. The threaded sleeve cooperates with the screw rod thread through the screw hole. The flame cutter is arranged at the bottom of the linkage seat.

[0008] The protection unit is arranged on the linkage seat, and the protection unit includes a limit plate, an adjustment plate, a sliding rod and a sliding groove. Vertical and horizontal grooves are arranged inside the linkage seat. The limit plate is slidably engaged in the vertical groove, and a groove is arranged on the threaded sleeve. One end of the limit plate abuts in the groove, and the adjustment plate is slidably engaged in the horizontal groove. The sliding rod is fixed on the limit plate. The sliding groove of the V-shaped structure is arranged on the adjustment plate, and the sliding rod is slidably engaged in the sliding groove.

[0009] Preferably, the linkage cutting unit also includes a guide rod and a docking sleeve, the guide rod is fixed between two adjacent support seats and is symmetrically and parallelly arranged on both sides of the screw rod, the docking sleeve is fixed on the linkage seat, and the docking sleeve is slidably sleeved outside the guide rod.

[0010] Preferably, a ball is rotatably clamped inside the docking sleeve, and a plurality of balls are provided and abut against the guide rod.

[0011] Preferably, a return spring is arranged in the vertical notch of the linkage seat, one end of the return spring abuts against the limit plate, and the other end abuts against the linkage seat.

[0012] Preferably, a servo motor is provided on one side of the support seat, and the output shaft of the servo motor is coaxially connected to the lead screw.

[0013] Preferably, the flame cutter is detachably connected to the linkage seat via screws.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] In this solution, the linkage cutting unit in the cutting mechanism drives the linkage seat to cooperate with the screw thread, thereby driving the flame cutter to translate and realize the cutting operation of the steel box girder. When the linkage seat abuts the support seat, the internal structure of the protection unit is linked and the threaded sleeve can rotate freely, thereby avoiding the situation where the threaded sleeve and the screw thread are linked to cause the screw to slip. It is simple, practical and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the linkage seat and its connection structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the protection unit of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure of the limit plate of the utility model;

[0020] In the figure: 1, support seat; 2, cutting mechanism; 21, screw rod; 22, linkage seat; 23, threaded sleeve; 24, flame cutter; 25, guide rod; 26, docking sleeve; 27, ball bearing; 28, limit plate; 29, adjustment plate; 210, slide rod; 211, slide groove; 212, return spring; 213, servo motor. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The utility model embodiment provides an automatic heating and cutting device for installing a steel box beam, such as Figure 1-Figure 4 As shown, it includes: a support base 1 and a cutting mechanism 2;

[0024] The cutting mechanism 2 is connected to the support base 1, and the overall structure formed by the support base 1 and the cutting mechanism 2 is placed at the position where the steel box girder needs to be cut;

[0025] The cutting mechanism 2 includes a linkage cutting unit and a protection unit. The linkage cutting unit includes a screw rod 21, a linkage seat 22, a threaded sleeve 23 and a flame cutter 24. The screw rod 21 is rotatably connected between two adjacent support seats 1. The linkage seat 22 is slidably connected to the screw rod 21. The threaded sleeve 23 is rotatably connected inside the linkage seat 22, and a screw hole is penetrated in the threaded sleeve 23. The threaded sleeve 23 is threadedly matched with the screw rod 21 through the screw hole. The flame cutter 24 is arranged at the bottom of the linkage seat 22.

[0026] The protection unit is arranged on the linkage seat 22, and the protection unit includes a limit plate 28, an adjustment plate 29, a slide rod 210 and a slide groove 211. Vertical and horizontal slots are arranged inside the linkage seat 22. The limit plate 28 is slidably engaged in the vertical slot, and a slot is arranged on the threaded sleeve 23. One end of the limit plate 28 abuts in the slot, and the adjustment plate 29 is slidably engaged in the horizontal slot. The slide rod 210 is fixed on the limit plate 28. The slide groove 211 of the V-shaped structure is arranged through the adjustment plate 29, and the slide rod 210 is slidably engaged in the slide groove 211.

[0027] It should be noted that, in the existing cutting device, it is generally necessary to cooperate with the translation mechanism to drive the flame cutter to move in a straight line, and the translation mechanism is generally driven by the screw rod to drive the cutting mechanism thread linkage. However, when driven to both ends of the device, if the screw rod continues to rotate, the threads will be misaligned and engaged with each other, which will cause the threads to slip and damage the device. In order to solve this problem, a cutting mechanism 2 is set in the present scheme. The linkage cutting unit in the cutting mechanism 2 drives the linkage seat 22 to cooperate with the screw rod 21 thread linkage, thereby driving the flame cutter 24 to translate and realize the cutting operation of the steel box girder. When the linkage seat 22 abuts against the support seat 1, the internal structure of the protective unit is linked, and the threaded sleeve 23 can rotate freely, thereby avoiding the threaded sleeve 23 and the screw rod 21 thread linkage causing the screw rod 21 to slip. It is simple, practical and efficient.

[0028] Specifically, in this embodiment, this scheme mainly includes a support seat 1 and a cutting mechanism 2. When in use, the cutting mechanism 2 is supported as a whole at the position on the steel box girder where cutting is required by the support seat 1, and then the steel box girder is cut by the flame cutter 24 in the linkage cutting unit. When the linkage seat 22 abuts against the support seat 1, when the limit plate 28 abuts against the support seat 1, the support seat 1 drives the slide rod 210 to link through the slide groove 211, and then drives the adjustment plate 29 to move up and separate from the threaded sleeve 23. At this time, the threaded sleeve 23 can rotate freely to avoid the threaded linkage between the threaded sleeve 23 and the screw rod 21, which causes the screw rod 21 to slip.

[0029] In a further preferred embodiment of the present invention, Figure 1-Figure 4 As shown, the linkage cutting unit also includes a guide rod 25 and a docking sleeve 26. The guide rod 25 is fixed between two adjacent support seats 1 and is symmetrically and parallelly arranged on both sides of the screw rod 21. The docking sleeve 26 is fixed on the linkage seat 22, and the docking sleeve 26 is slidably sleeved on the outside of the guide rod 25.

[0030] In this embodiment, the linkage seat 22 is guided and limited by the guide rod 25 so that it moves along a predetermined route.

[0031] In a further preferred embodiment of the present invention, Figure 1-Figure 4 As shown, a ball 27 is rotatably engaged inside the docking sleeve 26 , and a plurality of balls 27 are provided and abut against the guide rod 25 .

[0032] In this embodiment, the friction resistance between the docking sleeve 26 and the guide rod 25 is reduced by the balls 27 .

[0033] In a further preferred embodiment of the present invention, Figure 1-Figure 4As shown, a return spring 212 is disposed in the vertical slot of the linkage seat 22 , one end of the return spring 212 abuts against the limiting plate 28 , and the other end abuts against the linkage seat 22 .

[0034] In this embodiment, the limit plate 28 can be quickly reset and engaged with the threaded sleeve 23 through the elastic force of the reset spring 212 , so that the threaded sleeve 23 can be threadedly linked with the screw rod 21 .

[0035] In a further preferred embodiment of the present invention, Figure 1-Figure 4 As shown, a servo motor 213 is disposed on one side of the support seat 1 , and the output shaft of the servo motor 213 is coaxially connected to the screw rod 21 .

[0036] In this embodiment, the servo motor 213 drives the screw rod 21 to move in linkage, and then the threaded sleeve 23 drives the linkage seat 22 to move in overall threaded linkage.

[0037] In a further preferred embodiment of the present invention, Figure 1-Figure 4 As shown, the flame cutter 24 is detachably connected to the linkage seat 22 via screws.

[0038] In this embodiment, when the flame cutter 24 is damaged, the staff can quickly disassemble it for replacement or repair.

[0039] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0040] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0041] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0042] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An automatic heating and cutting device for steel box girder installation, characterized in that: include: A support base (1) and a cutting mechanism (2); The cutting mechanism (2) is connected to the support seat (1), and the overall structure formed by the support seat (1) and the cutting mechanism (2) is placed at a position where the steel box girder needs to be cut; The cutting mechanism (2) comprises a linkage cutting unit and a protection unit, wherein the linkage cutting unit comprises a screw rod (21), a linkage seat (22), a threaded sleeve (23) and a flame cutter (24), wherein the screw rod (21) is rotatably connected between two adjacent support seats (1), the linkage seat (22) is slidably connected to the screw rod (21), the threaded sleeve (23) is rotatably connected inside the linkage seat (22), and a screw hole is provided through the threaded sleeve (23), the threaded sleeve (23) is threadably matched with the screw rod (21) through the screw hole, and the flame cutter (24) is provided at the bottom of the linkage seat (22); The protection unit is arranged on the linkage seat (22), and the protection unit comprises a limit plate (28), an adjustment plate (29), a slide rod (210) and a slide groove (211). The linkage seat (22) is provided with vertical and horizontal slots inside, the limit plate (28) is slidably engaged in the vertical slot, and a slot is provided on the threaded sleeve (23), one end of the limit plate (28) is abutted in the slot, the adjustment plate (29) is slidably engaged in the horizontal slot, the slide rod (210) is fixed on the limit plate (28), the slide groove (211) of the V-shaped structure is arranged on the adjustment plate (29), and the slide rod (210) is slidably engaged in the slide groove (211).

2. The automatic heating and cutting equipment for steel box girder installation according to claim 1, characterized in that: The linkage cutting unit further comprises a guide rod (25) and a docking sleeve (26); the guide rod (25) is fixed between two adjacent support seats (1) and is symmetrically and parallelly arranged on both sides of the screw rod (21); the docking sleeve (26) is fixed on the linkage seat (22), and the docking sleeve (26) is slidably sleeved outside the guide rod (25).

3. The automatic heating and cutting equipment for steel box girder installation according to claim 2, characterized in that: A ball bearing (27) is rotatably engaged inside the docking sleeve (26), and a plurality of the ball bearings (27) are provided and abut against the guide rod (25).

4. The automatic heating and cutting equipment for steel box girder installation according to claim 1, characterized in that: A return spring (212) is arranged in the vertical notch of the linkage seat (22); one end of the return spring (212) abuts against the limit plate (28), and the other end abuts against the linkage seat (22).

5. The automatic heating and cutting equipment for steel box girder installation according to claim 1, characterized in that: A servo motor (213) is provided on one side of the support seat (1), and an output shaft of the servo motor (213) is coaxially connected to the lead screw (21).

6. The automatic heating and cutting equipment for steel box girder installation according to claim 1, characterized in that: The flame cutter (24) is detachably connected to the linkage seat (22) via screws.

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