A dust cleaning device for a bridge crane trolley track

Abstract

The utility model discloses a bridge crane trolley track ash removal device relates to hoisting equipment technical field, in order to solve the serious ash deposition of crane trolley track in industrial and mining enterprise workshop, lead to the problem of crane starting skidding, brake distance extension and gnaw rail, propose following technical scheme: the device includes support, scraper fixed axle, fixed clamping plate and cleaning scraper, support is fixed on the rail sweeper of crane, and cleaning scraper fixed axle is worn in the support, and its lower end is connected fixed clamping plate, and cleaning scraper is detachably installed on fixed clamping plate, still be equipped with compression spring, pressure adjusting bolt and set screw on cleaning scraper fixed axle, be respectively used for adjusting the pressure of cleaning scraper to the track and wear compensation amount. The utility model discloses simple structure, need not power device, can effectively scrape the stubborn scale of track surface, guarantee crane operation steady, and convenient to install and maintain.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a dust removal device for the main track of a bridge crane. Background Technology

[0002] Bridge cranes are a common type of lifting equipment used in industrial and mining enterprises, widely applied in material handling in workshops, warehouses, and other locations. The crane's trolley rails, as the key basic structure bearing the weight of the crane itself and transmitting the working load of the hoisted goods, are typically the same length as the entire factory building, ranging from tens to hundreds of meters in length. The crane achieves longitudinal movement through the rolling of its wheels on the rails; therefore, the surface condition of the rails directly affects the crane's operational stability and safety.

[0003] In actual production environments, especially in heavy industrial plants or factories with high dust levels, a large number of dust particles are often suspended in the air. If the ambient humidity is high, this dust easily adheres to the surface of the crane rails. With repeated rolling by the crane wheels, over time, a layer of hardened dust deposits and scale forms on the rails. This layer of dirt significantly reduces the coefficient of friction between the wheels and the rail surface, thus disrupting the normal contact between them.

[0004] Scaling on the track surface can lead to a series of serious technical problems. First, the reduced friction causes the drive wheels to slip during crane start-up, resulting in crane vibration and unstable operation. Second, during braking and stopping, the loss of traction makes the crane prone to brake slippage, significantly increasing braking distance and making it impossible for operators to accurately place goods in designated positions, severely impacting the continuity of production processes. Furthermore, uneven scaling on both sides of the track can easily cause the crane to run skewed, leading to "rail wear," accelerating wheel and track wear, and shortening the equipment's lifespan.

[0005] While current cranes are typically equipped with rail sweepers, their primary function is to remove large foreign objects such as stones and tools from the rails. They are less effective at cleaning tightly adhered dust and grime layers on the rail surface. Existing cleaning methods often lack effective pressure regulation and wear compensation mechanisms. When the sweeping components wear down, they cannot maintain effective pressure on the rails, leading to cleaning failure.

[0006] Therefore, there is an urgent need for a cleaning device that can effectively remove stubborn scale buildup on rails and has wear compensation function to solve the problems of rail wear and brake slippage caused by scale buildup on rails. Utility Model Content

[0007] The purpose of this utility model is to provide a dust removal device for the main track of a bridge crane, so as to solve the problem that the friction of the main track of the existing crane is reduced due to dust and dirt accumulation, which in turn causes wheel wear and brake slippage.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A dust removal device for the main track of a bridge crane includes: a bracket, a scraper fixing shaft, a fixing plate, and a cleaning scraper; The bracket is used to install on the rail sweeper of the crane, and the bracket is provided with a through hole for the scraper fixing shaft to pass through; The scraper fixing shaft passes through the through hole of the bracket, and the lower end of the scraper fixing shaft is connected to the fixing plate. The cleaning scraper is detachably fixed to the fixing plate; A compression spring and a pressure adjusting bolt are also fitted on the scraper fixing shaft, with the compression spring abutting between the pressure adjusting bolt and the bracket.

[0009] Furthermore, the scraper fixing shaft includes an upper part and a lower part, the upper part being a cylindrical threaded structure and the lower part being a polygonal columnar structure; The bracket includes an upper crossbar and a lower crossbar. The upper crossbar has a circular through hole, and the lower crossbar has a polygonal limiting hole that matches the shape of the lower part of the scraper fixing shaft. The upper part of the scraper fixing shaft passes through a circular through hole, and the lower part of the scraper fixing shaft passes through a polygonal limiting hole.

[0010] Furthermore, the scraper fixing shaft is located on the threaded structure above the bracket, and a positioning bolt is threadedly connected to it. The positioning bolt can abut against the upper surface of the bracket.

[0011] Furthermore, the pressure adjusting bolt is located below the upper crossbar of the bracket, with one end of the compression spring abutting against the upper surface of the pressure adjusting bolt and the other end abutting against the lower surface of the upper crossbar of the bracket.

[0012] Furthermore, the upper part of the fixed plate is provided with a connecting hole, and the lower end of the scraper fixing shaft is connected to the fixed plate through the plate fixing bolt.

[0013] Furthermore, the lower part of the fixed plate is provided with a slot, the upper part of the cleaning scraper is placed in the slot, and the cleaning scraper is clamped and fixed to the fixed plate by fastening bolts.

[0014] Furthermore, the bracket has mounting holes and is fixedly connected to the rail sweeper via bracket connecting bolts.

[0015] This utility model has the following beneficial effects: It does not require an additional power drive device, is easy to process and manufacture, and is convenient to install and disassemble, thus having high economic efficiency. Furthermore, by setting a compression spring and adjusting bolts, the clamping force of the cleaning scraper on the track can be flexibly adjusted, and the wear of the scraper can be compensated, ensuring that the scraper is always in close contact with the track and maintaining a good cleaning effect. It can effectively scrape away stubborn dust on the track surface, solve the problems of crane starting slippage, extended braking distance, and rail wear, thereby reducing equipment wear and significantly improving the stability and safety of crane operation. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an embodiment of a trolley rail cleaning device for a bridge crane; Figure 2 An exploded view of the structure of an embodiment of a trolley rail cleaning device for a bridge crane; Figure 3 This is a schematic diagram illustrating the installation of an embodiment of a trolley rail cleaning device for a bridge crane.

[0017] Figures 1 to 3 The reference numerals in the attached figures are respectively: 1-sweeping scraper, 2-fixed clamping plate, 3-fastening bolt, 4-sweeper fixing shaft, 5-clamping plate fixing bolt, 6-pressure adjusting bolt, 7-compression spring, 8-positioning bolt, 9-bracket, 10-bracket connecting bolt, 11-rail sweeper. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please refer to Figure 1-2 A dust removal device for the main track of a bridge crane includes a bracket 9, a scraper fixing shaft 4, a fixing plate 2, a cleaning scraper 1, and an elastic pressing mechanism composed of a compression spring 7.

[0020] Specifically, bracket 9 serves as the base of the entire device and is used to connect the crane body. Specifically, bracket 9 has mounting holes, and it is securely installed onto the crane's existing rail sweeper 11 using four bracket connecting bolts 10. Using the rail sweeper 11 as the mounting point eliminates the need for destructive modifications to the crane's main structure, making installation and disassembly very convenient.

[0021] The cleaning scraper 1 is the working part that directly contacts the track, and is preferably made of polyurethane. Polyurethane has excellent wear resistance and moderate elasticity, which can effectively scrape away stubborn scale while reducing wear on the metal track. To facilitate the replacement of worn cleaning scraper 1, this device is designed with a split structure. The cleaning scraper 1 is mounted on a fixed clamping plate 2. Specifically, the lower part of the fixed clamping plate 2 has a slot (e.g., a "U" shaped slot), and the upper part of the cleaning scraper 1 is placed into the slot. The cleaning scraper 1 is clamped and fixed by a fastening bolt 3 passing laterally through the clamping plate and the cleaning scraper 1. When the cleaning scraper 1 is severely worn and needs to be replaced, the old cleaning scraper 1 can be quickly removed by simply loosening the fastening bolt 3. The upper part of the fixed clamping plate 2 has a connecting hole, which is connected to the lower end of the scraper fixing shaft 4 by the clamping plate fixing bolt 5, thereby suspending the scraper assembly under the fixing shaft.

[0022] To ensure that the cleaning scraper 1 remains aligned with the track during operation and to prevent circumferential rotation that could affect cleaning performance, this device employs an anti-rotation design. The support 9 is designed as a double-layered crossbar structure, comprising an upper crossbar and a lower crossbar. The scraper fixing shaft 4 is divided into upper and lower parts: the upper part is a cylindrical threaded structure, and the lower part is a polygonal columnar structure such as a cuboid or cube. Correspondingly, the upper crossbar of the support 9 has a circular through-hole for the shaft to pass through, while the lower crossbar has a polygonal limiting hole (such as a square hole) that matches the shape of the lower part of the scraper fixing shaft 4. The scraper fixing shaft 4 passes through the support 9; its lower polygonal structure mates with the square hole of the support, restricting the rotational freedom of the fixing shaft while retaining its axial vertical movement freedom.

[0023] To ensure the cleaning scraper 1 remains in close contact with the track surface and adapts to minor undulations, this device incorporates an elastic clamping mechanism. A compression spring 7 is fitted onto the scraper fixing shaft 4 below the upper crossbar of the bracket 9, and a pressure adjusting bolt 6 is threaded onto the threaded section below the spring. One end of the compression spring 7 abuts against the upper surface of the pressure adjusting bolt 6, and the other end abuts against the lower surface of the upper crossbar of the bracket 9. By rotating the pressure adjusting bolt 6, it moves upward on the scraper fixing shaft 4, compressing the spring 7. Since the upper end of the spring is blocked by the bracket 9 (which remains stationary), the spring's reaction force pushes the pressure adjusting bolt 6 downward, thereby causing the scraper fixing shaft 4 and the cleaning scraper 1 to move downward, thus generating a clamping force on the trolley track. In actual use, the operator can adjust the position of the pressure adjusting bolt 6 to change the spring compression, thereby precisely adjusting the friction between the cleaning scraper 1 and the track to achieve the best dust removal effect.

[0024] In practical use, the height of the cleaning scraper 1 will decrease due to wear over time. To compensate for this wear and limit the lowest position of the cleaning scraper 1, two positioning bolts 8 are threadedly connected to the threaded structure of the scraper fixing shaft 4 above the bracket 9. The positioning bolts 8 can abut against the upper surface of the bracket 9, playing a limiting role and preventing the scraper assembly from falling off or descending too low when the crane jumps. When the cleaning scraper 1 wears down, the position of the positioning bolts 8 can be adjusted downwards, and in conjunction with the adjustment of the pressure adjusting bolt 6, the scraper assembly can be moved down as a whole, thereby compensating for the wear gap and extending its service life.

[0025] The specific working principle of this utility model is as follows: When the crane is running, this device moves with the trolley. Under the action of the compression spring 7, the cleaning scraper 1 is pressed tightly against the surface of the trolley rail, forcibly scraping away the accumulated dust and scale on the rail. When encountering rail joints or small protrusions, the compression spring 7 is compressed, and the scraper fixing shaft 4 floats upward along the guide hole of the bracket 9. After passing the obstacle, it quickly returns to its original position under the action of the spring force, ensuring the continuity and passability of the cleaning.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust removal device for the main track of a bridge crane, characterized in that, include: The bracket (9), the scraper fixing shaft (4), the fixing plate (2), and the cleaning scraper (1); The bracket (9) is used to be installed on the rail sweeper (11) of the crane, and the bracket (9) is provided with a through hole for the scraper fixing shaft (4) to pass through; The scraper fixing shaft (4) passes through the through hole of the bracket (9), and the lower end of the scraper fixing shaft (4) is connected to the fixing plate (2). The cleaning scraper (1) is detachably fixed to the fixing plate (2); The scraper fixing shaft (4) is also fitted with a compression spring (7) and a pressure adjusting bolt (6) threadedly connected to it. The compression spring (7) abuts against the pressure adjusting bolt (6) and the bracket (9).

2. The bridge crane trolley track cleaning device according to claim 1, characterized in that, The scraper fixing shaft (4) includes an upper part and a lower part, the upper part being a cylindrical threaded structure and the lower part being a polygonal columnar structure; The bracket (9) includes an upper crossbar and a lower crossbar. The upper crossbar has a circular through hole, and the lower crossbar has a polygonal limiting hole that matches the lower shape of the scraper fixing shaft (4). The upper part of the scraper fixing shaft (4) passes through the circular through hole, and the lower part of the scraper fixing shaft (4) passes through the polygonal limiting hole.

3. The bridge crane trolley track cleaning device according to claim 1, characterized in that, The scraper fixing shaft (4) is also threaded with a positioning bolt (8) on the threaded structure above the bracket (9), and the positioning bolt (8) can abut against the upper surface of the bracket (9).

4. The bridge crane trolley track cleaning device according to claim 1, characterized in that, The pressure adjusting bolt (6) is located below the upper crossbar of the bracket (9). One end of the compression spring (7) abuts against the upper surface of the pressure adjusting bolt (6), and the other end abuts against the lower surface of the upper crossbar of the bracket (9).

5. The bridge crane trolley track cleaning device according to claim 1, characterized in that, The upper part of the fixed plate (2) is provided with a connection hole, and the lower end of the scraper fixing shaft (4) is connected to the fixed plate (2) through the plate fixing bolt (5).

6. The bridge crane trolley track cleaning device according to claim 1, characterized in that, The lower part of the fixed plate (2) is provided with a slot, the upper part of the cleaning scraper (1) is placed in the slot, and the cleaning scraper (1) is clamped and fixed on the fixed plate (2) by fastening bolts (3).

7. The bridge crane trolley track cleaning device according to claim 1, characterized in that, The bracket (9) has mounting holes and is fixedly connected to the rail sweeper (11) by bracket connecting bolts (10).

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