Bridge steel structure sand blasting derusting device

Abstract

The utility model discloses a sandblasting derusting device for a bridge steel structure, which belongs to the field of sandblasting derusting and comprises a derusting box, a front opening is arranged on the front side of the derusting box, a sealing mechanism is arranged on the derusting box, a derusting mechanism and a dust collection mechanism are mounted in the derusting box, and a rotating mechanism is arranged on the derusting box. The rotating mechanism comprises two rotating discs which are symmetrically arranged up and down, transmission assemblies are arranged on the rotating discs and used for enabling the two rotating discs to rotate synchronously, and the rotating discs are rotationally connected into the rust removal box. The device has the beneficial effects that the rotating mechanism and the clamping mechanism are arranged, through arrangement of a rack and a gear, a clamping jaw can adapt to steel structural parts in irregular shapes, through the pointed-cone-shaped clamping jaw, the clamping area is reduced as much as possible, the comprehensive degree of the steel structural parts during sand blasting and rust removal is improved, and meanwhile through combination of a rotating disc and a rotating shaft, the steel structural parts can be conveniently and rapidly derusted. And the two clamping mechanisms rotate synchronously, so that the clamping stability and the abrasive blasting derusting comprehensiveness are further improved.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting and rust removal, and in particular to a sandblasting and rust removal device for bridge steel structures. Background Technology

[0002] A large amount of steel structure is used in the construction of buildings, bridges and roads. However, steel structure is prone to oxidation reaction with oxygen and water vapor in the air when stored in the room, forming rust on the surface. Small steel structure materials in the bridge construction process need to be quickly ground and rusted. At present, manual sandblasting is often used for rust removal.

[0003] A search revealed Chinese Patent Publication No. CN219901756U, which discloses a sandblasting and rust removal device for steel structures used in bridge construction. This patent includes a work box, with an operating plate fixedly connected to the surface of the work box's inner cavity. Clamping assemblies are installed on the left and right sides of the work box's inner cavity. A moving device, including a fixed frame, is installed on the top of the work box. A dust removal device is installed on the left side of the bottom of the work box's inner cavity, and a sandblasting device is installed on the right side of the bottom of the work box's inner cavity. This device, through a hydraulic rod, a square plate, a motor, a U-shaped plate, another hydraulic rod, and a fixed plate, can clamp the steel to be sandblasted. The steel is fixed and rotated so that every surface of the steel can be sandblasted. The sandblasting head can be fixed and moved by the housing, motor, threaded rod, hydraulic rod and fixing frame, making the sandblasting more precise. Existing steel structure sandblasting and rust removal devices have difficulty in stably clamping irregular steel structures, and it is difficult to remove rust from the clamping area during sandblasting and rust removal. It is necessary to re-clamp or remove rust again, which is time-consuming, labor-intensive and affects the processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a sandblasting and rust removal device for bridge steel structures in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A bridge steel structure sandblasting and rust removal device includes a rust removal box with a front opening on the front side. A closing mechanism is provided on the rust removal box. A rust removal mechanism and a dust extraction mechanism are installed inside the rust removal box. A rotating mechanism is provided on the rust removal box, including two symmetrically arranged turntables. A transmission component is provided on the turntables to enable the two turntables to rotate synchronously. The turntables are rotatably connected inside the rust removal box. A clamping mechanism is provided on the turntables, including a hydraulic rod. A mounting plate is fixedly connected to the output end of the hydraulic rod. A connecting plate is fixedly connected to the mounting plate. A gear is rotatably connected to the connecting plate, and two symmetrically arranged racks mesh on the gear. A limit block is fixedly connected to the mounting plate. The racks are slidably connected to the connecting plate, and clamping claws are fixedly connected to the racks.

[0007] Preferably, the transmission assembly includes a rotating shaft, a mounting box is fixedly connected to one side of the rust removal box, the rotating shaft is rotatably connected inside the mounting box, a pulley is fixedly connected to the rotating shaft, a synchronous belt is fitted between the pulley and the turntable, a second motor is fixedly connected to the top of the mounting box, and the output end of the second motor is fixedly connected to the rotating shaft.

[0008] Preferably, the rust removal mechanism includes a sandblasting box, a conveying pump is fixedly connected inside the sandblasting box, a sandblasting pipe is fixedly connected to the discharge end of the conveying pump, a support component is provided on the sandblasting pipe, the support component is movably arranged inside the rust removal box, and a feeding hopper is fixedly connected to the sandblasting box.

[0009] Preferably, the support assembly includes a support frame, a sandblasting pipe fixedly connected to the support frame, the support frame slidably connected inside the rust removal box, a lead screw threadedly connected to the support frame, the lead screw rotatably connected inside the rust removal box, a first motor fixedly connected inside the rust removal box, and the output end of the first motor fixedly connected to the lead screw.

[0010] Preferably, the sealing mechanism includes two connecting frames, which are fixedly connected to the upper and lower positions of the front end of the rust removal box. A sealing door is slidably connected to the connecting frame, and an observation window is fixedly connected to the sealing door.

[0011] Preferably, the dust collection mechanism includes a dust collection box, which is fixedly connected to the bottom of the rust removal box. A dust collection pump is fixedly installed inside the dust collection box, and a dust collection pipe is fixedly connected to the dust collection end of the dust collection pump.

[0012] The beneficial effects are as follows: The rotating mechanism and the clamping mechanism are set up. The rack and pinion mechanism can make the clamping claw adapt to the irregular shape of the steel structure. The pointed cone-shaped clamping claw minimizes the clamping area and improves the overall coverage of the steel structure during sandblasting and rust removal. At the same time, the combination of turntable and rotating shaft makes the two sets of clamping mechanisms rotate synchronously, further improving the clamping stability and the overall coverage of sandblasting and rust removal.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of a sandblasting and rust removal device for bridge steel structures according to the present invention;

[0016] Figure 2 This is a front view of the bridge steel structure sandblasting and rust removal device described in this utility model;

[0017] Figure 3 This is a cross-sectional view of a bridge steel structure sandblasting and rust removal device according to the present invention;

[0018] Figure 4 This is a schematic diagram showing the connection between the rotating mechanism and the clamping mechanism of the bridge steel structure sandblasting and rust removal device described in this utility model;

[0019] Figure 5 This is a schematic diagram of the clamping mechanism of the bridge steel structure sandblasting and rust removal device described in this utility model;

[0020] Figure 6 This is a schematic diagram of the clamping mechanism of the bridge steel structure sandblasting and rust removal device described in this utility model.

[0021] The reference numerals in the attached drawings are explained as follows: 101, Rust removal box; 102, Front opening; 103, Mounting box; 201, Connecting frame; 202, Closed door; 203, Observation window; 301, Sandblasting box; 302, Conveying pump; 303, Sandblasting pipe; 304, Feeding hopper; 305, Support frame; 306, First motor; 307, Lead screw; 401, Dust collection box; 402, Dust collection pump; 403, Dust collection pipe; 501, Rotating shaft; 502, Pulley; 503, Turntable; 504, Synchronous belt; 505, Second motor; 601, Hydraulic rod; 602, Mounting plate; 603, Connecting plate; 604, Gear; 605, Rack; 606, Limiting block; 607, Clamping claw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figure 1 — Figure 6 As shown, a bridge steel structure sandblasting and rust removal device includes a rust removal box 101 with a front opening 102 on its front side. A closing mechanism is provided on the rust removal box 101. A rust removal mechanism and a dust extraction mechanism are installed inside the rust removal box 101. A rotating mechanism is provided on the rust removal box 101, including two symmetrically arranged turntables 503. A transmission assembly is provided on each turntable 503 to ensure synchronous rotation of the two turntables 503. The turntables 503 are rotatably connected inside the rust removal box 101. A clamping mechanism is provided on each turntable 503, including a hydraulic rod 60. 1. The output end of the hydraulic rod 601 is bolted to a mounting plate 602. A connecting plate 603 is bolted to the mounting plate 602. A gear 604 is rotatably connected to the connecting plate 603. Two symmetrically arranged racks 605 mesh on the gear 604. A limit block 606 is bolted to the mounting plate 602. The racks 605 are slidably connected to the connecting plate 603. A clamping claw 607 is bolted to the racks 605. The end of the clamping claw 607 is designed with a pointed conical structure to minimize the contact area with the rigid structural parts and improve the comprehensiveness of sandblasting and rust removal.

[0026] In this embodiment, the transmission assembly includes a rotating shaft 501. A mounting box 103 is bolted to one side of the rust removal box 101. The rotating shaft 501 is rotatably connected inside the mounting box 103. A pulley 502 is bolted to the rotating shaft 501. A synchronous belt 504 is fitted between the pulley 502 and the turntable 503. A second motor 505 is bolted to the top of the mounting box 103. The output end of the second motor 505 is connected to the rotating shaft 501 via a coupling. The arrangement of the rotating shaft 501, pulley 502, and turntable 503 enables the two sets of hydraulic rods 601 to rotate synchronously, ensuring that the clamping claws 607 are positioned on the same vertical line against the steel structure, thus ensuring the clamping effect when the clamping claws 607 rotate.

[0027] In this embodiment, the rust removal mechanism includes a sandblasting box 301, a conveying pump 302 is bolted inside the sandblasting box 301, a sandblasting pipe 303 is inserted into the discharge end of the conveying pump 302, a support assembly is provided on the sandblasting pipe 303, the support assembly is movably disposed inside the rust removal box 101, and a feeding hopper 304 is bolted to the sandblasting box 301.

[0028] In this embodiment, the support assembly includes a support frame 305, a sandblasting pipe 303 is bolted to the support frame 305, the support frame 305 is slidably connected inside the rust removal box 101, a lead screw 307 is threadedly connected to the support frame 305, the lead screw 307 is rotatably connected inside the rust removal box 101, a first motor 306 is bolted to the inside of the rust removal box 101, and the output end of the first motor 306 is connected to the lead screw 307 via a coupling.

[0029] In this embodiment, the sealing mechanism includes two connecting frames 201, which are bolted to the upper and lower positions of the front end of the rust removal box 101. A sealing door 202 is slidably connected to the connecting frame 201, and an observation window 203 is glued to the sealing door 202.

[0030] In this embodiment, the dust collection mechanism includes a dust collection box 401, which is bolted to the bottom of the rust removal box 101. A dust collection pump 402 is fixedly installed inside the dust collection box 401, and a dust collection pipe 403 is bolted to the dust collection end of the dust collection pump 402.

[0031] Working principle: When using this device, the sandblasting and rust removal material is first added to the sandblasting box 301 through the feeding hopper 304. The closed door 202 is moved to the side away from the front opening 102. The steel structure to be sandblasted and rust removed is placed between the clamping claws 607. Simultaneously, the two hydraulic rods 601 are activated. The output ends of the hydraulic rods 601 push the mounting plates 602 closer together. The mounting plates 602 drive the gears 604 to move through the connecting plate 603. The racks 605 on both sides of the gears 604 move synchronously towards the steel structure. The gear 604 continues to move towards the steel structure until one of the limiting blocks 606 first contacts the surface of the steel structure. Then, the gear 604 rotates relative to the connecting plate 603, and the other limiting block 606 moves relative to the limiting block 606 that has already contacted the surface of the steel structure, until both sets of limiting blocks 606 are pressed against the surface of the steel structure. This allows for clamping of steel structures with irregular surface shapes, and the pressing positions of the upper and lower sets of limiting blocks 606 are on a vertical line, ensuring proper clamping. Stability is ensured, and the clamping stability is maintained even when the turntable 503 drives the clamping mechanism and steel structure to rotate. When sandblasting begins, the closed door 202 is moved to the front opening 102 position, and the conveying pump 302, the first motor 306, the second motor 505, and the dust pump 402 are turned on. The conveying pump 302 sprays the sandblasting material in the sandblasting box 301 through the sandblasting pipe 303 onto the surface of the steel structure for sandblasting and rust removal. Impurities generated during the rust removal process are removed by the dust pump 402. The dust is drawn into the dust collection box 401 through the suction pipe 403 to prevent it from being dispersed in the air. During the sandblasting process, the second motor 505 drives the pulley 502 to rotate through the rotating shaft 501. The pulley 502 drives the two turntables 503 to rotate synchronously through the synchronous belt 504, so that the clamping mechanism and the steel structure rotate as a whole. In conjunction with the output shaft of the first motor 306 and the lead screw 307, they perform periodic forward and reverse rotation, so that the support frame 305 moves up and down, which can ensure that the steel structure can be thoroughly sandblasted and rusted.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bridge steel structure sand blasting derusting device, comprising a derusting box (101), a front opening (102) is formed on the front side of the derusting box (101), a closing mechanism is arranged on the derusting box (101), a derusting mechanism and a dust suction mechanism are installed in the derusting box (101), characterized in that: The rust removal box (101) is provided with a rotating mechanism, the rotating mechanism comprises two upper and lower symmetrical rotating discs (503), the rotating disc (503) is provided with a transmission assembly, the transmission assembly is used for synchronous rotation of two rotating discs (503), the rotating disc (503) is rotatably connected in the rust removal box (101), the rotating disc (503) is provided with a clamping mechanism, the clamping mechanism comprises a hydraulic rod (601), the output end of the hydraulic rod (601) is fixedly connected with a mounting plate (602), the mounting plate (602) is fixedly connected with a connecting plate (603), the connecting plate (603) is rotatably connected with a gear (604), the gear (604) is engaged with two symmetrical racks (605), the mounting plate (602) is fixedly connected with a limiting block (606), the rack (605) is slidably connected on the connecting plate (603), and the rack (605) is fixedly connected with a clamping claw (607).

2. The sand blasting derusting device for bridge steel structure according to claim 1, characterized in that: The transmission assembly comprises a rotating shaft (501), one side of the rust removal box (101) is fixedly connected with a mounting box (103), the rotating shaft (501) is rotatably connected in the mounting box (103), the rotating shaft (501) is fixedly connected with a belt pulley (502), a synchronous belt (504) is sleeved between the belt pulley (502) and the rotating disc (503), and the top of the mounting box (103) is fixedly connected with a second motor (505); the output end of the second motor (505) is fixedly connected with the rotating shaft (501).

3. The sand blasting deruster for bridge steel structure as claimed in claim 1, wherein: The rust removal mechanism comprises a sand blasting box (301), the sand blasting box (301) is fixedly connected with a conveying pump (302), the conveying pump (302) is fixedly connected with a sand blasting pipe (303) at the discharge end, the sand blasting pipe (303) is provided with a supporting assembly, the supporting assembly is movably arranged in the rust removal box (101), and the sand blasting box (301) is fixedly connected with a feeding hopper (304).

4. The sand blasting derusting device for bridge steel structure according to claim 3, characterized in that: The supporting assembly comprises a supporting frame (305), the sand blasting pipe (303) is fixedly connected with the supporting frame (305), the supporting frame (305) is slidably connected in the rust removal box (101), the supporting frame (305) is screwedly connected with a lead screw (307), the lead screw (307) is rotatably connected in the rust removal box (101), the rust removal box (101) is fixedly connected with a first motor (306), and the output end of the first motor (306) is fixedly connected with the lead screw (307).

5. The sand blasting deruster for bridge steel structure as claimed in claim 1, wherein: The closing mechanism comprises two connecting frames (201), the connecting frames (201) are fixedly connected to the upper and lower positions of the front end of the rust removal box (101), and the connecting frames (201) are slidably connected with a closing door (202).

6. The sand blasting deruster for bridge steel structure as claimed in claim 1, wherein: The dust suction mechanism comprises a dust suction box (401) fixedly connected to the inside bottom of the rust removal box (101), a dust suction pump (402) fixedly installed in the dust suction box (401), and a dust suction pipe (403) fixedly connected to the dust suction end of the dust suction pump (402).

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