Steel surface spraying equipment for bridge steel truss girder

Abstract

The invention discloses bridge steel truss steel surface spraying equipment, and relates to the technical field of spraying equipment, the bridge steel truss steel surface spraying equipment comprises a tank body and a spraying gun, and the top of the tank body is provided with a grinding mechanism; through the designed grinding mechanism, before being poured into the tank body, a sand material enters the sorting screen below through the feeding hopper, and the sand material with a proper particle size falls into the bottom of the tank body below through meshes in the sorting screen under the inclination action of the sorting screen; according to the sand material grinding device, the sand material with the large particle size enters the position between the mounting plate and the right inclined plate, the sand material with the large particle size is ground through the rotating grinding disc, the sand material with the appropriate particle size finally falls into the bottom of the lower tank body, and the influence of blocking of the sand material with the large particle size on a spray gun and a conveying pipe is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of spraying equipment, in particular to a bridge steel truss steel material surface spraying equipment. Background Art

[0002] Steel trusses are used in bridge construction. Steel trusses are a type of truss structure made of steel. They are composed of many webs and have excellent bending resistance and strong deformation coordination capabilities. Therefore, they are often used as large supporting structures. The surface of the steel needs to be sandblasted to remove rust. Sandblasting uses compressed air as the power to spray the sand in the tank of the sandblasting machine at high speed. The high-speed sand flow is sprayed onto the surface of the steel to remove rust, scale and other pollutants on the surface of the steel.

[0003] In the prior art, sand of suitable particle size is poured into a tank, and then the sand in the tank is transported to a spray gun by compressed air, and then sprayed outward from the spray gun. However, the required sand needs to be of suitable particle size. When sand of larger particle size is mixed into the sand, the sand is easy to clog the spray gun, the delivery pipe, etc., resulting in a reduction in the amount of sand sprayed or no spraying, which affects the effect of spraying sand on the surface of the steel truss. For this reason, we propose a surface spraying equipment for bridge steel trusses. Summary of the invention

[0004] The purpose of the present invention is to provide a bridge steel truss steel surface spraying equipment to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a bridge steel truss steel surface spraying equipment, comprising a tank body and a spray gun, the top of the tank body is provided with a grinding mechanism, the grinding mechanism comprises: An upper ring, a sorting screen and a bracket, wherein the sorting screen is used for sorting and diverting sand materials, and a feed hopper is fixedly arranged inside the upper ring; The sorting screen is provided with a grinding piece, which includes a mounting plate and a right inclined plate located on both sides of the sorting screen, two groups of middle plates are fixedly arranged between the mounting plate and the right inclined plate, a fixing ring is fixedly arranged inside the mounting plate, and a grinding disc is rotatably arranged inside the fixing ring.

[0006] Preferably, the grinding member further comprises a motor fixed on the top of the bracket, a lower bevel gear is sleeved and fixed on the outside of the working end of the motor, and two sets of vertical bevel gears are meshed on the outside of the lower bevel gear.

[0007] Preferably, two groups of support bearings are fixedly arranged on the top of the bracket, and a rotating rod is rotatably arranged inside the support bearings.

[0008] Preferably, two groups of upper bearings are embedded and installed inside the sorting screen, inclined rods are rotatably arranged inside the upper bearings, and multiple groups of stirring rods are fixedly arranged on the outer sides of the tops of the inclined rods.

[0009] Preferably, a secondary gear is fixedly provided at the bottom of the inclined rod, and an upper conical gear is also sleeved and fixedly provided at the working end of the motor.

[0010] Preferably, a protective member is provided on the outside of the bracket, and the protective member includes a semicircular cover arranged on the top of the bracket, an arc block is fixedly provided on the outside of the semicircular cover, a through hole is opened inside the arc block, and a top column is fixedly provided on the top of the bracket, and the top of the top column passes through the inside of the through hole.

[0011] Preferably, a locking screw is threadedly connected to the interior of the arc block, and a working end of the locking screw extends to the surface of the top column.

[0012] Preferably, a cleaning part is provided on the bracket, and the cleaning part includes an impact plate fixed to the top of the inner wall of the semicircular cover and a water pipe fixed to the bottom of the bracket, two groups of nozzles are fixedly provided on the top of the water pipe, the top of the nozzle extends to the outside of the top of the bracket, and a joint is fixedly provided on the end of the water pipe.

[0013] Preferably, a discharge valve is fixedly provided at the bottom of the tank body, a pipeline is fixedly provided outside the tank body, and a filter is fixedly provided on the pipeline; An air connection pipe is fixedly arranged on the outside of the filter, and a connecting pipe is fixedly arranged on the bottom of the pipeline.

[0014] Preferably, a delivery pipe is fixedly provided on the discharge valve, and a spray gun is fixedly provided on the end of the delivery pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The grinding mechanism of the present invention is designed so that before the sand is poured into the tank, it will pass through the feed hopper and enter the sorting screen below. Under the tilting action of the sorting screen, the sand with a suitable particle size will fall into the bottom of the tank below through the mesh holes in the sorting screen. Then, some sand with a larger particle size will enter between the mounting plate and the right inclined plate. The larger particle size sand will be ground by the rotating grinding disc to make the sand particle size of the sand material into a suitable size, and finally fall into the bottom of the tank below, thereby reducing the effect of the larger particle size sand on the spray gun and the conveying pipe.

[0016] (2) The protective part designed in the present invention can prevent the sand from falling onto the auxiliary gear, upper bevel gear, vertical bevel gear and lower bevel gear through the semicircular cover during the process of sorting and grinding the sand, causing wear on their outer surfaces when they are engaged, thereby improving the service life of the auxiliary gear, upper bevel gear, vertical bevel gear and lower bevel gear and the sorting effect.

[0017] (3) The cleaning part of the present invention is designed to spray water toward the top inner wall of the semicircular cover through the nozzle after the steel is sandblasted. A part of the water splashes on the impact plate to clean the auxiliary gear, upper bevel gear, vertical bevel gear and lower bevel gear, thereby reducing the influence of attached foreign matter on them. In addition, the water will fall into the tank body to rinse the inside of the tank body, thereby completing the cleaning of the auxiliary gear, upper bevel gear, vertical bevel gear and lower bevel gear, and cleaning the inside of the tank body, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the rear view and upward view structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the upper ring of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the middle part A; Figure 5 It is a schematic diagram of the structure of the mounting plate and the right inclined plate of the present invention; Figure 6 It is a schematic diagram of the structure of the grinding disc of the present invention; Figure 7 It is a schematic diagram of the side view structure of the grinding disc of the present invention; Figure 8 It is a schematic diagram of the structure of the auxiliary gear and the lower bevel gear of the present invention; Fig. 9 It is a schematic diagram of the meshing structure of the lower bevel gear and the vertical bevel gear of the present invention; Fig.10 It is a bottom view structural schematic diagram of the lower bevel gear and the vertical bevel gear of the present invention; In the figure: 100, tank body; 101, spray gun; 102, discharge valve; 103, connecting pipe; 104, filter; 105, exhaust valve; 200, upper ring; 201, feed hopper; 203, sorting screen; 204, fixed ring; 205, rotating rod; 206, inclined rod; 207, bracket; 208, support bearing; 209, mounting plate; 210, grinding disc; 211, middle plate ; 212, right inclined plate; 213, sub-gear; 214, motor; 215, upper bevel gear; 216, lower bevel gear; 217, stirring rod; 218, upper bearing; 220, vertical bevel gear; 300, joint; 301, water pipe; 302, nozzle; 303, impact plate; 400, semicircular cover; 401, top column; 402, locking screw; 403, arc block. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1 See also Figure 1-Figure 10 The present invention provides a technical solution: a bridge steel truss steel material surface spraying device, comprising a tank body 100 and a spray gun 101, the sand material in the tank body 100 is sprayed onto the steel material surface by the spray gun 101, the top of the tank body 100 is provided with a grinding mechanism, the grinding mechanism comprises an upper ring 200, a sorting screen 203 and a bracket 207, and a feed hopper 201 is fixedly provided inside the upper ring 200; The sorting screen 203 is provided with a grinding piece, which includes a mounting plate 209 and a right inclined plate 212 located on both sides of the sorting screen 203. The sorting screen 203 is an inverted V-shaped structure, which is convenient for screening sand materials. Two sets of middle plates 211 are fixedly arranged between the mounting plate 209 and the right inclined plate 212. A fixing ring 204 is fixedly arranged inside the mounting plate 209. A grinding disc 210 is rotatably arranged inside the fixing ring 204. Sand materials with larger particle sizes are ground by the rotating grinding disc 210. The grinding part also includes a motor 214 fixed on the top of the bracket 207. A lower bevel gear 216 is fixedly mounted on the outside of the working end of the motor 214. Two sets of vertical bevel gears 220 are meshed on the outside of the lower bevel gear 216, and the vertical bevel gears 220 are meshed with the lower bevel gear 216. Two groups of support bearings 208 are fixedly arranged on the top of the bracket 207, and a rotating rod 205 is rotatably arranged inside the support bearing 208. The rotating rod 205 is rotatably arranged in the mounting plate 209 and the right inclined plate 212. The middle part of the longitudinal section of the right inclined plate 212 is in an inclined state, which is convenient for sand materials with larger particle sizes to enter the rotating grinding disc 210 for contact and grinding. In addition, the space formed by the mounting plate 209, the two groups of middle plates 211 and the right inclined plate 212 has a large upper opening and a small lower opening, which can increase the grinding effect of the sand materials, and the end of the rotating rod 205 passes through the right inclined plate 212, the grinding disc 210 and the interior of the fixing ring 204; Two groups of upper bearings 218 are embedded inside the sorting screen 203, an inclined rod 206 is rotatably arranged inside the upper bearing 218, a plurality of stirring rods 217 are fixedly arranged on the top outer side of the inclined rod 206, a sub gear 213 is fixedly arranged on the bottom of the inclined rod 206, and an upper bevel gear 215 is also sleeved and fixed on the working end of the motor 214, and the upper bevel gear 215 is meshed with the sub gear 213.

[0021] The present invention has a designed grinding mechanism. Before the sand material is poured into the tank body 100, it will pass through the feed hopper 201 and enter the sorting screen 203 below. Due to the tilting effect of the sorting screen 203, the sand material with a suitable particle size will fall into the bottom of the tank body 100 below through the mesh holes in the sorting screen 203, and then some sand materials with larger particle sizes will enter between the mounting plate 209 and the right inclined plate 212. The sand material with a larger particle size is ground by the rotating grinding disc 210 to make the sand material particle size become a suitable size, and finally fall into the bottom of the tank body 100 below, thereby reducing the effect of the sand material with a larger particle size on clogging the spray gun 101 and the conveying pipe.

[0022] During use, the motor 214 is first turned on, and the working end of the motor 214 rotates to drive the upper bevel gear 215 and the lower bevel gear 216 to rotate, and the upper bevel gear 215 drives the sub-gear 213 to rotate, and then drives the inclined rod 206 to rotate, and the inclined rod 206 drives the multiple groups of stirring rods 217 to rotate, and the lower bevel gear 216 will drive the vertical bevel gear 220 meshing with it to rotate when rotating, and then drive the rotating rod 205 to rotate, and then the rotating rod 205 can drive the grinding disc 210 to rotate; Then, the sand material is poured into the feed hopper 201, and the sand material enters the sorting screen 203 below. The sorting screen 203 is an inverted V-shaped structure. Under the action of the inclined surfaces on both sides of the sorting screen 203, the sand material slides in both directions. At the same time, the rotating stirring rod 217 can stir the sand material piled up on the sorting screen 203 to make it dispersed. During the stirring and inclined sliding process on the sorting screen 203, the sand material with a suitable particle size falls into the bottom of the inner wall of the tank body 100 below through the mesh holes in the sorting screen 203, and then the remaining larger particle size continues to slide in both directions and falls between the mounting plate 209 and the right inclined plate 212. At this time, the larger particle size of the sand material is ground by the rotating grinding disc 210 to reduce its particle size. Finally, the sand material with a suitable particle size falls into the bottom of the inner wall of the tank body 100 below to complete the grinding of the larger particle size of the sand material.

[0023] Embodiment 2 Based on Example 1, please refer to Figure 3 , Figure 4 and Figure 8 The outside of the bracket 207 is provided with a protective member, and the protective member includes a semicircular cover 400 arranged on the top of the bracket 207. The semicircular cover 400 is provided with two groups, and covers the sub-gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216 to play a protective effect. The outside of the semicircular cover 400 is fixedly provided with an arc block 403, and the inside of the arc block 403 is provided with a through hole. The top of the bracket 207 is fixedly provided with a top column 401, and the top of the top column 401 passes through the inside of the through hole; The interior of the arc block 403 is connected with a locking screw 402 through a thread. The arc block 403 and the top column 401 can be fixed by the locking screw 402, and the working end of the locking screw 402 extends to the surface of the top column 401.

[0024] The protective member designed in the present invention can prevent the sand from falling onto the auxiliary gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216 during the sorting and grinding process, thereby causing wear on their outer surfaces when they are engaged, thereby improving the service life of the auxiliary gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216 and the sorting effect.

[0025] During use, the sand material falling from the sorting screen 203 will be blocked by the semicircular cover 400 below to prevent the sand material from falling on the sub-gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216, causing wear on the outer surfaces of the sub-gear 213 and the upper bevel gear 215, and the lower bevel gear 216 and the vertical bevel gear 220 during the meshing process. 5. When the vertical bevel gear 220 and the lower bevel gear 216 are to be maintained, the semicircular cover 400 can be disassembled. During disassembly, the locking screw 402 is rotated outward, and then the working end of the locking screw 402 is separated from the surface of the top column 401. Then the semicircular cover 400 is moved upward, driving the arc block 403 to move, and then the through hole in the arc block 403 is separated from the top column 401. At this time, it can be removed, and the semicircular cover 400 can be installed according to the above-mentioned reverse principle.

[0026] Embodiment 3 Based on Example 2, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig.10 A cleaning part is provided on the bracket 207, and the cleaning part includes an impact plate 303 fixed to the top of the inner wall of the semicircular cover 400 and a water pipe 301 fixed to the bottom of the bracket 207, two groups of nozzles 302 are fixedly provided on the top of the water pipe 301, and the top of the nozzle 302 extends to the outside of the top of the bracket 207, and a joint 300 is fixedly provided at the end of the water pipe 301, and the end of the joint 300 extends to the outside of the tank body 100.

[0027] The cleaning part designed in the present invention sprays water toward the top inner wall of the semicircular cover 400 through the nozzle 302 after the steel is sandblasted and sprayed. A part of the water hits the impact plate 303 and splashes to clean the auxiliary gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216, thereby reducing the influence of attached foreign matter on them. In addition, the water will fall into the tank body 100 to flush the inside of the tank body 100, thereby completing the cleaning of the auxiliary gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216, and can also clean the inside of the tank body 100, which is convenient for maintenance.

[0028] During use, a pipe for conveying water is connected to the end of the joint 300, and water is conveyed to the nozzle 302 through the water pipe 301, and then the nozzle 302 is turned on, and the nozzle 302 sprays water upward. Part of the water is sprayed to the top of the inner wall of the semicircular cover 400 and splashes, and another part of the water is guided by the arc surface of the inner wall of the semicircular cover 400 to flow downward to the impact plate 303, and then the water will splash after hitting the impact plate 303, and the outer walls of the sub-gear 213, the upper bevel gear 215, the vertical bevel gear 220 and the lower bevel gear 216 are washed by the splashing water, and some foreign matter attached to their surfaces is washed away, and the water will clean the inside of the tank body 100 after falling into the inside of the tank body 100.

[0029] In this embodiment, a discharge valve 102 is fixedly provided at the bottom of the tank body 100, a pipeline is fixedly provided on the outside of the tank body 100, an exhaust valve 105 is provided on the outside of the top of the tank body 100, and a filter 104 is fixedly provided on the pipeline; The filter 104 is fixedly provided with an air connection pipe on the outside, and the air connection pipe is connected to the outside and a device providing compressed gas. The filter 104 can filter the incoming compressed gas. A connecting pipe 103 is fixedly provided at the bottom of the pipe, and the end of the connecting pipe 103 extends to the inside of the discharge valve 102. In this embodiment, a delivery pipe is fixedly provided on the discharge valve 102 , and a spray gun 101 is fixedly provided at the end of the delivery pipe.

[0030] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A bridge steel truss steel material surface spraying device, comprising a tank body (100) and a spray gun (101), wherein a grinding mechanism is disposed on the top of the tank body (100), and characterized in that: The grinding mechanism comprises: An upper ring (200), a sorting screen (203) and a bracket (207), wherein the sorting screen (203) is used to sort and divert sand material, and a feed hopper (201) is fixedly arranged inside the upper ring (200); A grinding piece is arranged on the sorting screen (203), and the grinding piece comprises a mounting plate (209) and a right inclined plate (212) located on both sides of the sorting screen (203); two groups of middle plates (211) are fixedly arranged between the mounting plate (209) and the right inclined plate (212); a fixing ring (204) is fixedly arranged inside the mounting plate (209); and a grinding disc (210) is rotatably arranged inside the fixing ring (204).

2. The surface spraying equipment for bridge steel truss steel material according to claim 1 is characterized by: The grinding element further comprises a motor (214) fixed on the top of the bracket (207), a lower bevel gear (216) being sleeved and fixed on the outside of the working end of the motor (214), and two sets of vertical bevel gears (220) being meshed on the outside of the lower bevel gear (216).

3. The surface spraying equipment for bridge steel truss steel material according to claim 2 is characterized by: Two groups of support bearings (208) are fixedly arranged on the top of the bracket (207), and a rotating rod (205) is rotatably arranged inside the support bearing (208).

4. The surface spraying equipment for bridge steel truss steel material according to claim 3 is characterized by: Two groups of upper bearings (218) are embedded and installed inside the sorting screen (203), an inclined rod (206) is rotatably arranged inside the upper bearing (218), and multiple groups of stirring rods (217) are fixedly arranged on the outside of the top of the inclined rod (206).

5. The surface spraying equipment for bridge steel truss steel material according to claim 4 is characterized by: A secondary gear (213) is fixedly disposed at the bottom of the inclined rod (206), and an upper conical gear (215) is also sleeved and fixedly disposed at the working end of the motor (214).

6. The bridge steel truss steel material surface spraying equipment according to claim 3 is characterized by: A protective member is arranged on the outside of the bracket (207), the protective member comprising a semicircular cover (400) arranged on the top of the bracket (207), an arc block (403) is fixedly arranged on the outside of the semicircular cover (400), a through hole is opened inside the arc block (403), and a top column (401) is fixedly arranged on the top of the bracket (207), and the top of the top column (401) passes through the inside of the through hole.

7. The surface spraying equipment for bridge steel trusses according to claim 6 is characterized by: The interior of the arc block (403) is connected to a locking screw (402) via a thread, and the working end of the locking screw (402) extends to the surface of the top column (401).

8. The bridge steel truss steel material surface spraying equipment according to claim 7 is characterized by: A cleaning component is provided on the bracket (207), the cleaning component comprising an impact plate (303) fixed to the top of the inner wall of the semicircular cover (400) and a water pipe (301) fixed to the bottom of the bracket (207), two groups of nozzles (302) are fixedly provided on the top of the water pipe (301), the top of the nozzle (302) extends to the outside of the top of the bracket (207), and a joint (300) is fixedly provided at the end of the water pipe (301).

9. The bridge steel truss steel material surface spraying equipment according to claim 1 is characterized by: A discharge valve (102) is fixedly arranged at the bottom of the tank body (100), a pipeline is fixedly arranged outside the tank body (100), and a filter (104) is fixedly arranged on the pipeline; An air connection pipe is fixedly arranged on the outside of the filter (104), and a connecting pipe (103) is fixedly arranged on the bottom of the pipe.

10. The bridge steel truss steel material surface spraying equipment according to claim 9, characterized in that: A delivery pipe is fixedly arranged on the discharge valve (102), and a spray gun (101) is fixedly arranged at the end of the delivery pipe.

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