Section steel push-pull type polishing machine

Abstract

The utility model discloses a profile steel push-pull type polishing machine which comprises a supporting frame and a motor connected to the supporting frame, an output shaft of the motor is connected with a polishing brush, the supporting frame is connected with a pull rod, two installation rods with the adjustable distance are symmetrically arranged on the supporting frame, limiting wheels are installed at the opposite ends of the two installation rods, and the limiting wheels are connected with the motor. According to the polishing machine, only the two limiting wheels need to be adjusted to the proper width according to the shape of the profile steel to be derusted, an operator can finish derusting and polishing work by pushing and pulling the machine back and forth in a standing mode, the machine is small, exquisite and flexible, dust is not prone to rising, the working environment of workers is improved, and the polishing efficiency is improved. The labor intensity of workers is reduced; the device can be used for rust removal and polishing work of H-shaped steel, channel steel, C-shaped steel, square steel and other structural steel, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of steel polishing, in particular to a push-pull type steel section polishing machine. Background Art

[0002] H-shaped steel, channel steel, C-shaped steel, and square steel are commonly used engineering materials in steel structure devices. Before welding the steel structure, it is necessary to remove rust and prevent corrosion on the steel section, or polish the surface of the steel section according to different uses. Traditional polishing and rust removal methods include rust removal with a hand-held grinding wheel, sandblasting, shot peening, etc. Currently, when using a hand-held grinding wheel to remove rust from a steel section, the operator needs to maintain a long-term bending or semi-squatting state, resulting in high labor intensity, easy fatigue, and easy inhalation of dust; while using a sandblasting or shot peening machine to remove rust, the equipment itself is expensive, heavy, with high moving and transportation costs, and pollutes the environment. Therefore, it is necessary to design a push-pull type steel section polishing machine with less dust emission and reduced labor intensity of workers. Content of the Utility Model

[0003] The purpose of the utility model is to provide a push-pull type steel section polishing machine, which solves the problems of easy dust emission and high operation labor intensity of the existing polishing machine.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] A push-pull type steel section polishing machine includes a support frame and a motor connected to the support frame. The output shaft of the motor is connected with a polishing brush. The support frame is connected with a pull rod. Two distance-adjustable mounting rods are symmetrically arranged on the support frame. Limiting wheels are installed at the opposite ends of the two mounting rods, and the limiting wheels are used for limiting the polishing machine on the steel section.

[0006] Further, the support frame is in a U-shaped shape, and threaded holes are horizontally penetrated through the two side plates. The mounting rods are screw rods and are thread-matched with the threaded holes. The opposite ends of the screw rods are connected with wheel frames for installing the limiting wheels.

[0007] Further, the upper end of the support frame is connected with a bottom plate through bolts, and the motor is detachably connected to the support frame through the bottom plate.

[0008] Furthermore, a connecting plate is detachably connected to the side plate surface of the bottom plate through bolts, and the pull rod is fixedly connected with the connecting plate.

[0009] Furthermore, several pairs of threaded holes are arranged at the same height on the two side plates of the support frame.

[0010] Further, the upper end of the pull rod is connected with a handle, and the handle is in a tee shape.

[0011] Further, a protective sleeve is sleeved on the handle at the hand-held part.

[0012] Further, the motor and the polishing brush are detachably connected by a nut.

[0013] Further, the motor is connected with a switch for controlling the start and stop of the motor through a wire, and the switch is embedded in the pull rod and located at the handle.

[0014] The beneficial effects of the utility model are as follows: (1) For this polishing machine, only the two limit wheels need to be adjusted to a suitable width according to the shape of the steel section to be derusted, and the operator can complete the derusting and polishing work by standing and pushing and pulling the machine back and forth. The machine is small, flexible, not easy to generate dust, improves the working environment of workers, and reduces the labor intensity of workers. (2) It can be used not only for H-shaped steel, but also for derusting and polishing of channel steel, C-shaped steel, square steel and other steel sections, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the utility model;

[0016] Figure 2 is the side view structural schematic diagram of the utility model;

[0017] Figure 3 is the top view structural schematic diagram of the utility model.

[0018] In the figure: 1. Handle; 2. Switch; 3. Pull rod; 4. Motor; 5. Connecting plate; 6. Bottom plate; 7. Support frame; 8. Mounting rod; 9. Nut; 10. Polishing brush; 11. Steel section; 12. Wheel frame; 13. Limit wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0020] As Figures 1 - 3 shown, a push-pull type polishing machine for steel sections includes a support frame 7 and a motor 4 connected to the support frame 7. The output shaft of the motor 4 is connected with a polishing brush 10. The support frame 7 is connected with a pull rod 3. Two spacing-adjustable mounting rods 8 are symmetrically arranged on the support frame 7. Limit wheels 13 are installed at the opposite ends of the two mounting rods 8, and the limit wheels 13 are used for limiting the polishing machine on the steel section 11.

[0021] Working principle: Figures 1 - 3The steel sections shown are all H-shaped steels. The distance between the two limiting wheels 13 is adjusted by installing the rod 8, and the steel web or flange plate of the H-shaped steel can be clamped by the limiting wheels 13; the pull rod 3 is used to push or pull the polishing machine, and it is preferably connected to the motor 4 after maintaining a certain degree of downward inclination. The pull rod 3 can be used for standing operation. Pushing and pulling the polishing machine to work can reduce the contact between workers and dust and improve the working environment of workers; Rust removal steps: When rusting the flange plate of the H-shaped steel, place the H-shaped steel in an I-shape, and the two limiting wheels 13 are respectively clamped on both sides of the web of the H-shaped steel, and the polishing brush 10 is placed above the flange plate to polish. Turn on the switch, push and pull back and forth; when removing rust from the web of H-shaped steel, place the H-shaped steel in an H shape, clamp the two limit wheels 13 on both sides of the flange plate respectively, place the polishing brush 10 above the web, turn on the switch, push and pull back and forth, and the upper and lower webs and upper and lower flange plates need to be rusted separately; Polishing steps: If polishing is required, replace the polishing brushes 10 of different grades in turn. Combined with the above rust removal and polishing steps, it is obvious that the two limit wheels 13 are adjusted to a suitable width according to the shape of the steel to be rusted. The polishing machine can also remove rust and polish steel such as channel steel, C-shaped steel and square steel.

[0022] Preferably, the support frame 7 is in a U-shaped shape and threaded holes are horizontally penetrated through the two side plates. The mounting rod 8 is a screw rod and matches the threaded holes. The screw rod is connected to a wheel frame 12 for mounting the limiting wheel 13 at the opposite end. The mounting rod 8 and the limiting wheel 13 can be installed in the above manner but not limited to. The mounting rod 8 can increase the connection strength with the support frame 7 and the wheel frame 12 by setting a nut at the connection.

[0023] Preferably, the upper end of the support frame 7 is connected to the bottom plate 6 by bolts, and the motor 4 is detachably connected to the support frame 7 through the bottom plate 6. The output shaft of the motor 4 preferably passes through the bottom plate 6 and the support frame 7 and is connected to the polishing brush 10. The motor 4 is detachably connected to the support frame 7, which is convenient for replacement and maintenance of the motor 4.

[0024] More preferably, the bottom plate 6 is detachably connected to the connecting plate 5 on the side plate surface by bolts, the pull rod 3 is fixedly connected to the connecting plate 5, the bottom plate 6 can be conveniently connected to the connecting plate 5 on the side by setting a vertical plate, and the pull rod 3 is detachably connected to the support frame 7 in the above manner. Since the pull rod 3 and the handle 1 are usually set to be relatively long, the detachable connection is convenient for the polishing machine to be disassembled for transportation or for the repair and replacement of the pull rod 3 and the handle 1.

[0025] More preferably, the threaded holes are provided in pairs at equal heights on the two side plates of the support frame 7, so that the height of the limiting wheel 13 can be adjusted, making it convenient for the limiting assembly to limit H-shaped steels of different sizes.

[0026] Preferably, a handle 1 is connected to the upper end of the pull rod 3. The handle 1 is in a tee shape, and the lower end of the handle 1 is connected to the pull rod 3 by a countersunk screw. With the tee handle, it is easier and more stable to push and pull the polishing machine forward or backward with both hands.

[0027] More preferably, a protective cover is sleeved on the handle 1 at the hand-held position. The protective cover can be made of, but is not limited to, rubber material, which can increase the comfort of the hand when pushing and pulling the polishing machine and has an anti-slip effect.

[0028] Preferably, the motor 4 and the polishing brush 10 are detachably connected by a nut 9, which is convenient for replacing polishing brushes 10 of different grades for polishing treatment.

[0029] Preferably, the motor 4 is connected by a wire to a switch 2 for controlling the start and stop of the motor 4. The switch 2 is embedded in the pull rod 3 and is located at the handle 1. The pull rod 3 is preferably a hollow rod, and the wire is arranged inside the pull rod 3, which can protect the wire. By pressing the switch 2 at the handle 1, it is more convenient to start and stop the motor 4, improving the convenience of the device.

[0030] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A push-pull type polishing machine for steel sections, characterized in that: It includes a support frame (7) and a motor (4) connected to the support frame (7). The output shaft of the motor (4) is connected with a polishing brush (10). The support frame (7) is connected with a pull rod (3). Two symmetrically arranged mounting rods (8) with adjustable spacing are provided on the support frame (7). Limit wheels (13) are mounted on the opposite ends of the two mounting rods (8), and the limit wheels (13) are used for limiting the polishing machine on the profiled steel (11).

2. A push-pull type polishing machine for steel sections according to claim 1, characterized in that: The support frame (7) is in a U-shaped form and has threaded holes horizontally penetrating through both side plates. The mounting rod (8) is a screw rod and is thread-matched with the threaded holes. The screw rod is connected with a wheel frame (12) for mounting the limit wheel (13) at the opposite end.

3. A push-pull type polishing machine for steel sections according to claim 1, characterized in that: The upper end of the support frame (7) is connected with a bottom plate (6) by bolts, and the motor (4) is detachably connected to the support frame (7) through the bottom plate (6).

4. A push-pull type polishing machine for steel sections according to claim 3, characterized in that: The bottom plate (6) is detachably connected with a connecting plate (5) by bolts on the side plate surface, and the pull rod (3) is fixedly connected with the connecting plate (5).

5. A push-pull type polishing machine for steel sections according to claim 2, characterized in that: A number of pairs of the threaded holes are provided at the same height on both side plates of the support frame (7).

6. A push-pull type polishing machine for steel sections according to claim 1, characterized in that: The upper end of the pull rod (3) is connected with a handle (1), and the handle (1) is in a three-way shape.

7. A push-pull type polishing machine for steel sections according to claim 6, characterized in that: A protective sleeve is sleeved at the hand-holding part of the handle (1).

8. A push-pull type polishing machine for steel sections according to claim 1, characterized in that: The motor (4) and the polishing brush (10) are detachably connected by a nut (9).

9. A push-pull type polishing machine for steel sections according to claim 1, characterized in that: The motor (4) is connected with a switch (2) for controlling the start and stop of the motor (4) through a wire. The switch (2) is embedded in the pull rod (3) and is located at the handle (1).

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