CN115573571A

CN115573571A - Bending equipment with variable cross-section pier body and hook ribs without residual materials

Info

Publication number: CN115573571A
Application number: CN202211259109.8A
Authority: CN
Inventors: 温东昌; 肖向荣; 张凤凰; 曾柯林; 李友清; 张敬弦; 王志楠; 赵征
Original assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-01-06

Abstract

The invention relates to a variable cross-section pier body hook rib no-residual material bending device which comprises a machine body, wherein a pair of hooks arranged at intervals are arranged at the top of the machine body, a first space for transverse reinforcing steel bars to pass through is formed in the pair of hooks, a second space for longitudinal reinforcing steel bars to pass through is arranged below the first space, and the second space is positioned between the pair of hooks in the overlooking direction and limited between the first space and the top surface of the machine body; there is the ejector pin in the fuselage, the ejector pin can be under the exogenic action along the length direction of fuselage in the fuselage upper and lower activity, the ejector pin can stretch out the second space of UNICOM to the crotch rear side and act on the longitudinal reinforcement that passes the second space after the activity that makes progress on, the ejector pin can retract to in the fuselage after the activity that makes progress. According to the invention, the hook and the machine body are matched to limit the longitudinal steel bar, and then the ejector rod is adopted to bend, so that the bending of the hook steel bar is realized, the lapping or welding process is not needed, the time and the labor are saved, and the working efficiency is greatly improved.

Description

Bending equipment with variable cross-section pier body and hook ribs without residual materials

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of engineering, in particular to variable cross-section pier body hook rib non-excess material bending equipment.

[ background of the invention ]

The variable cross-section high bridge region is the most common substructure form in mountain expressway and general highway, especially when the bridge is higher, there are several forms such as a box type variable cross-section hollow thin-wall pier and double box type variable cross-section hollow thin-wall pier.

The hook ribs of the variable cross-section pier body steel bars are installed, mostly numerical control centralized prefabrication in a steel bar field is adopted, and field binding molding is carried out. For the pier body which changes according to a certain slope, because the cross section is consistent, the lengths of hook bars (the hook bars are all inconsistent for meeting the shear strength of the oblique cross section and connecting a stressed main bar and concrete in a stressed area to enable the stressed main bar and the concrete to work together and fixing the position of the main bar so as to enable various bars in a member (a beam or a column) to form a steel bar of a steel bar framework) are different, the pier body needs to be numbered one by one during prefabrication, the requirement on the installation position is high, in the binding process of the hook bars of the pier body with the variable cross section, the field identification is difficult, and the control difficulty of a protective layer is large.

The existing method is to manufacture the hook rib with variable cross section in two sections, and the hook rib is formed in a cold lap or welding mode on site. A cold lap joint mode (as shown in fig. 1) is to divide a hook bar into two sections, blanking is carried out according to the longest hook bar length by considering the lap joint length, and the hook bar is formed by through binding on site, so that auxiliary steel bars with larger consumption ratio are needed; the same is true for welding (as shown in fig. 2), one hook bar is divided into two sections, blanking is performed according to the longest hook bar length and considering the overlapping length, welding is performed on site, and besides the auxiliary steel bars with large consumption ratio, the welding amount on site is huge.

In order to solve the problems, the applicant intends to develop a technology for solving the problem that the accuracy control difficulty of binding and mounting the hook ribs of the variable cross-section pier body on site is high or the problem of labor consumption and material consumption is difficult.

[ summary of the invention ]

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a variable cross-section pier body hook rib no-residue bending device, which adopts the technical scheme that:

a bending device with variable cross-section pier body and without residual materials comprises a machine body, wherein a pair of hooks arranged at intervals are arranged at the top of the machine body, the pair of hooks can be hooked on transversely arranged steel bars, a first space for the transverse steel bars to pass through is formed in the pair of hooks, a second space for the longitudinal steel bars to pass through is arranged below the first space, and the second space is located between the pair of hooks in the overlooking direction and is limited between the first space and the top surface of the machine body; there is the ejector pin in the fuselage, the ejector pin can be under the exogenic action along the length direction of fuselage in the fuselage upper and lower activity, the ejector pin can stretch out the second space of UNICOM to the crotch rear side and act on the longitudinal reinforcement that passes the second space after the activity that makes progress on, the ejector pin can retract to in the fuselage after the activity that makes progress.

In a further improvement, a top wheel is arranged at the upper end part of the top rod.

In a further improvement, the body is provided with a handle.

In a further improvement, the machine body is of a frame structure, the hook is arranged on the upper end face of the front side of the machine body, a channel for the ejector rod to pass through is arranged on the rear side of the machine body along the length direction of the machine body, and the channel is located on the rear side of the hook and communicated with the second space.

In a further improvement scheme, the ejector rod is a hydraulic ejector rod, a hydraulic oil cylinder is arranged below the machine body, a hydraulic piston is arranged in the hydraulic oil cylinder, the bottom of the hydraulic ejector rod is connected with the hydraulic piston, and the hydraulic oil cylinder is connected with a hydraulic station to provide hydraulic driving force.

In a further development, the hydraulic station comprises an electric motor, an oil pump, an electrical box and a switch.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the hook is hooked on the transverse steel bar, so that labor-saving operation is facilitated, on the other hand, the transverse steel bar and the machine body limiting longitudinal steel bar are utilized, and the ejector rod is utilized to bend the longitudinal steel bar, so that the hook bar can be bent at any position of one steel bar according to the installation position, and is closely attached to the main bar after being bent, the tension of the hook bar is better, overlapping or welding procedures are not needed, time and labor are saved, the working efficiency is greatly improved, the equipment can be used for directly performing bending construction on a steel bar cage, and the bent steel bar and the steel bar cage are more compact. In addition, according to different hook bar sizes, one side of a hook can be prefabricated in a reinforcing steel bar field, reinforcing steel bars which are not hooked at the other end of the hook can be transported to the site, after the hook bars are positioned according to the designed positions, the hook bars with any length are hooked on the site by adopting the equipment, so that no excess material exists between the hook bars and the main bars, and the protective layer is ensured.

[ description of the drawings ]

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a prior art cold lap joint of a hook bar;

FIG. 2 is a schematic view of a prior art welding of a hook bar;

FIG. 3 is a first schematic structural diagram according to an embodiment of the present invention;

FIG. 4 is a second schematic structural diagram according to an embodiment of the present invention;

FIG. 5 is a first schematic diagram illustrating a step of bending the hook bar according to an embodiment of the present invention;

FIG. 6 is a second schematic view illustrating a step of bending the hook rib according to the embodiment of the present invention;

fig. 7 is a third schematic view of a step of bending the hook rib according to the embodiment of the present invention.

Description of the main element symbols:

10. a body; 11. a channel; 12. a handle; 20. hooking; 30. a top rod; 40. a top wheel; 50. a hydraulic cylinder; 60. a hydraulic station; 70. transverse reinforcing steel bars; 80. longitudinal reinforcing steel bars.

[ detailed description ] embodiments

Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description in the specification and so forth, and which are not intended to limit the scope of the invention.

In the description of the present invention, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and for example, may be directly connected or indirectly connected through intervening media; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

The invention provides a bending device without remainder for hook bars of a variable cross-section pier body, which comprises a machine body 10, wherein a pair of hooks 20 arranged at intervals are arranged at the top of the machine body 10, the pair of hooks 20 can be hooked on transversely arranged steel bars, a first space for the transverse steel bars 70 to pass through is formed in the pair of hooks 20, a second space for the longitudinal steel bars 80 to pass through is arranged below the first space, and the second space is positioned between the pair of hooks 20 in the overlooking direction and limited between the first space and the top surface of the machine body 10; there is a top rod 30 in the fuselage 10, the top rod 30 can move up and down in the fuselage 10 along the length direction of the fuselage 10 under the action of external force, the top end of the top rod 30 can extend out and be communicated to the second space behind the hook 20 and act on the longitudinal steel bar 80 passing through the second space after moving up, the top rod 30 can retract into the fuselage 10 after moving down. Specifically, the body 10 is a frame structure, the hook 20 is disposed on the front upper end surface of the body 10, a channel 11 for the ejector rod 30 to pass through is disposed on the rear side of the body 10 along the length direction of the body 10, and the channel 11 is located on the rear side of the hook 20 and is communicated with the second space.

When the lifting device is used, the hook 20 at the top of the machine body 10 is hooked on a transversely arranged steel bar, namely, the hook is hooked on a main steel bar of a steel bar cage, at the moment, the main steel bar is positioned in a first space, then a longitudinal steel bar 80 (namely, a hook steel bar) penetrates into the other side of the steel bar cage and penetrates out of a second space below the hook 20, the longitudinal steel bar penetrates through the second space from front to back, the top side of the second space abuts against the main steel bar, the bottom side of the second space abuts against the machine body 10, then the ejector rod 30 extends out of the machine body 10 upwards under the action of external force, the upper end of the ejector rod 30 acts on the longitudinal steel bar 80 at the rear side of the hook 20 and pushes upwards slowly, so that the longitudinal steel bar 80 is bent, after the longitudinal steel bar 80 is bent by a certain angle, the ejector rod 30 is controlled to retract, the machine body 10 is controlled to rotate upwards by a certain angle, and then the ejector rod 30 is controlled to move upwards to abut against the longitudinal steel bar 80 to bend until the longitudinal steel bar 80 is bent to a required angle.

In the invention, on one hand, the hook 20 is used for an operator to hook on the transverse steel bar 70, so that the labor-saving operation is convenient, on the other hand, the transverse steel bar 70 and the machine body 10 are used for limiting the longitudinal steel bar 80, and the ejector rod 30 is used for bending the longitudinal steel bar 80, so that the hook bar can be bent at any position of one steel bar according to the installation position, and is closely attached to the main bar after being bent, the hook bar tension is better, the lapping or welding process is not needed, the time and the labor are saved, the working efficiency is greatly improved, the equipment can be used for directly performing bending construction on a steel bar cage, and the bent steel bar and the steel bar cage are more compact. In addition, according to different hook bar sizes, one side of a hook can be prefabricated in a reinforcing steel bar field, reinforcing steel bars without hooks 20 at the other end of the hook can be transported to the field, after the hook bars are positioned according to the designed positions, the hooks 20 are adopted on the field of the equipment, hook bars with any length have no excess materials, the hook bars are closely attached to main bars, and a protective layer is ensured.

In the embodiment, as shown in fig. 4, 5, 6 and 7, the top wheel 40 is provided at the upper end of the top rod 30, and the top wheel 40 is provided between the two hooks during bending operation, so that the reinforcing steel bar can be bent at a large angle when pushed forward.

In the embodiment, as shown in fig. 4, 5, 6 and 7, a handle 12 is provided on the body 10 for a worker to carry, and adjust the bending angle of the device.

In an embodiment, as shown in fig. 4, the ram 30 is a hydraulic ram 30, a hydraulic cylinder 50 is arranged below the body 10, a hydraulic piston is arranged in the hydraulic cylinder 50, the bottom of the hydraulic ram 30 is connected with the hydraulic piston, and the hydraulic cylinder 50 is connected with a hydraulic station 60 to provide hydraulic driving force. The hydraulic station 60 includes a motor, an oil pump, an electrical box, and a switch.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made herein without departing from the principles and spirit of the invention as defined by the appended claims. Therefore, the detailed description of the embodiments of the present disclosure is to be construed as merely illustrative, and not limitative of the remainder of the disclosure, but rather to limit the scope of the disclosure to the full extent set forth in the appended claims.

Claims

1. A variable cross-section pier body hook rib no-waste bending device is characterized by comprising a machine body, wherein a pair of hooks arranged at intervals are arranged at the top of the machine body, the pair of hooks can be hooked on transversely arranged steel bars, first spaces for the transverse steel bars to pass through are formed in the pair of hooks, second spaces for the longitudinal steel bars to pass through are arranged below the first spaces, and the second spaces are located between the pair of hooks in the overlooking direction and limited between the first spaces and the top surface of the machine body; the lifting hook is characterized in that an ejector rod is arranged in the machine body, the ejector rod can move up and down in the machine body along the length direction of the machine body under the action of external force, after the ejector rod moves upwards, the upper end of the ejector rod can extend out to be communicated with a second space behind the hook and act on longitudinal steel bars penetrating through the second space, and after the ejector rod moves downwards, the ejector rod can retract into the machine body.

2. The bending equipment with the variable cross-section pier shaft hook rib free of the residual materials according to claim 1, wherein a top wheel is arranged at the upper end of the top rod.

3. The bending equipment with the variable cross-section pier shaft hook rib free of the excess materials as claimed in claim 1, wherein a handle is arranged on the machine body.

4. The variable cross-section pier shaft hook rib residue-free bending equipment according to claim 1, wherein the machine body is of a frame structure, the hook is arranged on the upper end face of the front side of the machine body, a channel for the ejector rod to pass through is arranged on the rear side of the machine body along the length direction of the machine body, and the channel is located on the rear side of the hook and is communicated with the second space.

5. The variable cross-section pier body hook rib no-residue bending equipment according to claim 1, wherein the ejector rod is a hydraulic ejector rod, a hydraulic oil cylinder is arranged below the machine body, a hydraulic piston is arranged in the hydraulic oil cylinder, the bottom of the hydraulic ejector rod is connected with the hydraulic piston, and the hydraulic oil cylinder is connected with a hydraulic station to provide hydraulic driving force.

6. The variable cross-section pier shaft hook rib residue-free bending device according to claim 5, wherein the hydraulic station comprises a motor, an oil pump, an electric box and a switch.