Railway excavator hydraulic lifting device

Abstract

The application discloses a railway excavator hydraulic lifting device and belongs to the technical field of railways. Mainly including excavator body and lifting mechanism arranged on the excavator body, and an operating arm arranged on the excavator body, an accessory arranged at the end of the operating arm, two groups of guide parts arranged on the operating arm, and a lubricating mechanism arranged between the two groups of guide parts, the lubricating mechanism comprising a bracket arranged on the operating arm, slide rails arranged on the two sides of the bracket, slide blocks arranged on the slide rails, a base arranged between the slide blocks, an oil storage pipe arranged on the base, an arc-shaped spray head arranged at the output end of the oil storage pipe, and a driving assembly arranged at the lower end of the bracket. The railway excavator hydraulic lifting device can accurately weigh the trace amount of additives and completely remove the residual on the bucket wall through the arrangement of the weighing mechanism and the blowing assembly, thereby guaranteeing the effect of accurate final proportioning.

Description

Technical Field

[0001] This application relates to the field of railway technology, specifically to a hydraulic lifting device for railway excavators. Background Technology

[0002] Hydraulic excavators are widely used in railway line construction, maintenance, and emergency rescue operations due to their powerful performance and good terrain adaptability. To expand their functions, railway-specific hydraulic excavators are usually equipped with various lifting devices to complete the lifting and handling of track materials such as rails, sleepers, walkway slabs, and L-shaped ballast plates. The core actuator of these lifting devices is usually a steel cable, and its working condition directly affects the safety and efficiency of the entire operation.

[0003] For example, the patent with publication number CN206857962U discloses a lifting device for an excavator. This patent uses U-shaped steel bars set at the edge of the bucket opening and sliding blocks and grooves to make the lifting rope of the culvert trapezoidal, thereby achieving the lifting effect. However, in actual operation, the hydraulic lifting device of railway excavators mainly relies on the basic winch system. However, during operation, the railway construction site environment is complex. The steel cable is often exposed to rainwater, humid air, and pollutants such as coal ash and mud along the railway line. These substances will accelerate the corrosion process of the steel cable, thereby increasing the frictional resistance of the steel cable during operation, reducing transmission efficiency, increasing energy loss, and making it difficult for the steel cable to pass through the pulley, causing jamming.

[0004] Therefore, it is necessary to provide a hydraulic lifting device for railway excavators to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a hydraulic lifting device for railway excavators, which solves the core problems of difficulty in ensuring weighing accuracy and easy adhesion of residues to the inner wall, leading to inaccurate batching, when manually adding trace additives during the mixing process of SPC flooring raw materials.

[0007] The technical solution adopted by this application to solve its technical problem is: a hydraulic lifting device for railway excavators, comprising: The excavator body and the lifting mechanism mounted on the excavator body; The operating arm is mounted on the excavator body, and an attachment is provided at the end of the operating arm; Two sets of guide sections are provided on the operating arm; A lubrication mechanism is disposed between the guide portions, the lubrication mechanism comprising: A support frame is mounted on the operating arm; Slide rails are provided on both sides of the bracket; A slider, which is mounted on the slide rail; A base, which is mounted on the slider; An oil storage pipe is mounted on the base. An arc-shaped nozzle is disposed at the output end of the oil reservoir pipe; A drive assembly is disposed at the lower end of the bracket.

[0008] Furthermore, a retainer is fixedly provided at the upper end of the base, the oil storage pipe is disposed on the retainer, and the input end of the oil storage pipe is connected to an external oil pumping system.

[0009] Furthermore, the nozzle shape of the arc-shaped nozzle matches the shape of the steel cable.

[0010] Furthermore, the driving component includes: An electric motor is mounted at the lower end of the bracket. A gear is disposed at the output end of the motor; A rack is mounted on the base and meshes with the gear.

[0011] Furthermore, the guide portion includes a mounting plate fixedly mounted on the operating arm, a fixed seat fixedly mounted on the mounting plate, and guide wheels rotatably mounted at both ends of the fixed seat.

[0012] Furthermore, guide posts are fixedly installed on both sides of the mounting plate located on the fixed base. A slide block is slidably installed on the guide post. A pressure roller is rotatably installed on the side of the slide block facing the guide wheel. A crossbeam is fixedly installed at the upper end of the guide post. An electric cylinder is fixedly installed on the crossbeam. The output end of the electric cylinder passes through the crossbeam and is fixedly connected to the slide block.

[0013] The beneficial effects of this application are: the hydraulic lifting device for railway excavators provided in this application, by setting up a weighing mechanism and a blowing component, achieves the effect of accurately weighing trace additives and thoroughly removing residues from the bucket wall, thereby ensuring the accuracy of the final batching ratio.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of a hydraulic lifting device for a railway excavator according to this application; Figure 2 for Figure 1 Schematic diagram of the guide section; Figure 3 for Figure 2 Explosion-proof diagram of the intermediate lubrication mechanism; The following are the labeling elements in the figure: 1. Excavator body; 2. Lifting mechanism; 20. Operating arm; 21. Winder; 22. Guide section; 23. Traveling frame; 24. Winch; 25. Attachments; 3. Lubrication mechanism; 30. Bracket; 31. Motor; 32. Slide rail; 33. Slider; 34. Gear; 35. Rack; 36. Base; 37. Oil reservoir pipe; 38. Arc nozzle; 39. Card holder; 220. Fixed seat; 221. Guide wheel; 222. Guide column; 223. Slide block; 224. Electric cylinder; 225. Pressure roller; 226. Crossbeam; 227. Mounting plate. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] like Figures 1-2 As shown, this application provides a hydraulic lifting device for railway excavators. This device is mainly installed on railway-specific excavators and is used for lifting, handling and installing materials such as walking boards and L-shaped ballast plates in railway line maintenance operations. Specifically, the lifting device includes an excavator body 1 and a lifting mechanism 2 installed on the excavator body 1. In order to realize the lifting operation of materials, an operating arm 20 is provided on the excavator body 1. The operating arm 20 is driven by the hydraulic system of the excavator body 1 to swing at multiple angles, thereby driving the entire lifting mechanism 2 to complete the lifting operation in various postures. Furthermore, attachments 25 are detachably installed at the end of the operating arm 20, so that different attachments 25 can be switched according to the actual operation, for initial excavation operations and lifting operations of walking boards and L-shaped retaining plates; To ensure that the equipment can move and be positioned stably on the rails, a traveling frame 23 is installed at both the front and rear ends of the excavator body 1. The traveling frame 23 cooperates with the rails through a specially designed track wheel system, enabling the entire equipment to travel along the railway line. Meanwhile, in order to expand the lifting capacity, a winch 24 is installed on the traveling frame 23 located on the excavator body 1. This not only enables the winch 24 to be used as an independent traction power source for lifting operations, but also enables remote lifting functions through the cooperation of steel cable and front lifting mechanism 2. In addition, the winch 24 also acts as a counterweight, improving the stability of the whole machine during lifting operations. Furthermore, the power supply of the winch 24 is connected to the battery of the excavator body 1 through a quick-connect connector, and the steel cable winding and unwinding operations are controlled by the electric control handle for subsequent lifting operations. Furthermore, a winding machine 21 is provided at one end of the operating arm 20. The winding machine 21 is wound with steel cable to provide power for the lifting operation. In order to ensure that the steel cable maintains the correct direction and position during the lifting process, two sets of guide parts 22 are provided at the other end of the operating arm 20. Thus, the two sets of guide parts 22 work together to guide and position the steel cable during the lifting process to prevent the steel cable from deviating or tangling. Specifically, the guide section 22 includes a mounting plate 227 fixedly mounted on the operating arm 20. A fixed seat 220 is fixedly mounted on the mounting plate 227, and guide wheels 221 are rotatably mounted at both ends of the fixed seat 220. In order to realize the functions of pressing and cleaning the steel cable, guide posts 222 are also fixedly mounted on the mounting plate 227 on both sides of the fixed seat 220. A slide block 223 is slidably mounted on the guide post 222, and a pressure roller 225 is rotatably mounted on the side of the slide block 223 facing the guide wheel 221. Meanwhile, a crossbeam 226 is fixedly installed at the upper end of the guide column 222, and an electric cylinder 224 is fixedly installed on the crossbeam 226. The output end of the electric cylinder 224 passes through the crossbeam 226 and is fixedly connected to the slide block 223. Thus, during the actual lifting operation, the steel cable is led out from the winding machine 21 and passes through the gap between the pressure roller 225 and the guide roller 221 in the two sets of guide parts 22 in sequence, forming a stable guide path. When the winding machine 21 is started to wind up the steel cable, the lifting operation can be carried out smoothly. It should be noted that in order to clean the surface of the steel cable during the winding process, the guide wheel 221 and pressure wheel 225 on the guide part 22 at the end away from the winding machine 21 are provided with bristles or other materials with cleaning function. When lifting operations are performed, as the steel cable passes through the gap between the pressure roller 225 and the guide roller 221, the electric cylinder 224 is activated to push the pressure roller 225 closer to the guide roller 221, so that the cleaning material adheres tightly to the surface of the steel cable, and the surface contaminant is automatically cleaned during the movement of the steel cable. To ensure lubrication is performed immediately after cleaning, such as Figures 1-3 As shown, a lubrication mechanism 3 is provided on the operating arm 20 between two sets of guide sections 22. The lubrication mechanism 3 includes a bracket 30 fixedly mounted on the operating arm 20, and two sets of slide rails 32 fixedly mounted on both sides of the bracket 30. A slider 33 is slidably mounted on the slide rail 32, and a base 36 is fixedly mounted between the sliders 33 on both sides. By pushing the base 36, the slider 33 can be driven to move laterally along the slide rail 32. In order to drive the base 36 to move, a drive assembly is provided on the bracket 30. The drive assembly includes a motor 31 fixedly installed at the middle position of the lower end of the bracket 30. The output end of the motor 31 extends through the bracket 30 to the upper part and is fixedly installed with a gear 34. At the same time, a rack 35 is fixedly installed at one end of the base 36 on both sides, and the rack 35 meshes with the gear 34. When the starter motor 31 drives the gear 34 to rotate, it can drive the bases 36 on both sides to move synchronously towards or away from each other through the meshing transmission with the rack 35.

[0019] Furthermore, a card holder 39 is fixedly installed on the upper end of the base 36, and an oil storage pipe 37 is installed on the card holder 39. The input end of the oil storage pipe 37 is connected to an external oil pump system, which can continuously obtain a supply of lubricating oil. At the same time, an arc-shaped nozzle 38 is fixedly installed at the output end of the oil storage pipe 37. The nozzle shape of the arc-shaped nozzle 38 matches the shape of the steel cable, which can evenly spray the lubricating oil onto the surface of the steel cable.

[0020] Therefore, when the steel cable needs to be lubricated during the lifting operation, the steel cable located in the middle of the two sets of guide parts 22 is kept straight by the coordinated action of the two sets of guide parts 22. Then, the motor 31 is started to drive the gear 34 to rotate. Through the transmission of the rack 35, the base 36 and the slider 33 on it move towards each other along the slide rail 32, so that the arc-shaped nozzle 38 gradually approaches the straightened steel cable. Once the arc-shaped nozzle 38 reaches the predetermined position, the lubricating oil is delivered to the oil storage pipe 37 through the external oil pump system. Finally, the lubricating oil is evenly sprayed onto the surface of the steel cable through the arc-shaped nozzle 38 to complete the lubrication operation. This achieves the cleaning and lubrication operation during the steel cable winding process, ensuring work efficiency and effectively extending the service life of the steel cable.

[0021] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hydraulic lifting device for a railway excavator, comprising an excavator body (1) and a lifting mechanism (2) mounted on the excavator body (1), characterized in that: Operating arm (20), which is mounted on the excavator body (1), and an attachment (25) is provided at the end of the operating arm (20); Two sets of guide sections (22) are provided on the operating arm (20); A lubrication mechanism (3) is disposed between the guide portions (22), and the lubrication mechanism (3) includes: A bracket (30) is mounted on the operating arm (20); Slide rails (32) are provided on both sides of the bracket (30); A slider (33) is disposed on the slide rail (32); A base (36) is disposed on the slider (33); An oil storage pipe (37) is disposed on the base (36); An arc-shaped nozzle (38) is disposed at the output end of the oil reservoir (37); A drive assembly is disposed at the lower end of the bracket (30).

2. The hydraulic lifting device for a railway excavator according to claim 1, characterized in that: A card holder (39) is fixedly provided on the upper end of the base (36), and the oil storage pipe (37) is provided on the card holder (39). The input end of the oil storage pipe (37) is connected to an external oil pumping system.

3. The hydraulic lifting device for a railway excavator according to claim 1, characterized in that: The nozzle shape of the arc-shaped nozzle (38) matches the shape of the steel cable.

4. The hydraulic lifting device for a railway excavator according to claim 1, characterized in that: The driving component includes: A motor (31) is mounted at the lower end of the bracket (30); Gear (34), which is disposed at the output end of the motor (31); A rack (35) is mounted on the base (36) and meshes with the gear (34).

5. The hydraulic lifting device for a railway excavator according to claim 1, characterized in that: The guide part (22) includes a mounting plate (227) fixedly mounted on the operating arm (20), a fixing seat (220) fixedly mounted on the mounting plate (227), and guide wheels (221) rotatably mounted at both ends of the fixing seat (220).

6. A hydraulic lifting device for a railway excavator according to claim 5, characterized in that: Guide posts (222) are fixedly installed on both sides of the fixed base (220) on the mounting plate (227). A slide block (223) is slidably installed on the guide post (222). A pressure roller (225) is rotatably installed on the side of the slide block (223) facing the guide wheel (221). A crossbeam (226) is fixedly installed at the upper end of the guide post (222). An electric cylinder (224) is fixedly installed on the crossbeam (226). The output end of the electric cylinder (224) passes through the crossbeam (226) and is fixedly connected to the slide block (223).

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