Large mining hydraulic excavator

Abstract

The utility model relates to the technical field of excavators, and discloses a large mining hydraulic excavator which is characterized in that crawler belts are mounted on two sides of a mounting seat, a movable arm is mounted at the top of the mounting seat, an excavator bucket is mounted at the bottom of the movable arm, handrails are fixedly connected to the opposite surfaces of the crawler belts, pedals are fixedly connected to two sides of the mounting seat, and the pedals are fixedly connected with the mounting seat. First extension plates are fixedly connected to the two sides of the mounting seat, two grips are fixedly connected to the two sides of the mounting seat, and two pull handles are fixedly connected to the ends, away from the mounting seat, of the first extension plates. According to the large mining hydraulic excavator, a worker can climb upwards to a first extension plate by holding a handrail and a pull handle to provide a stress point, then the worker can climb upwards into a cockpit through a pedal and the handle, and therefore the worker can climb up and down the excavator conveniently, and meanwhile the worker can climb the excavator conveniently due to the same design of the other side; and the excavator wall and other components are overhauled, so that the excavator can be maintained by a worker more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to a large hydraulic excavator for mining. Background Art

[0002] An excavator, also known as a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the supporting surface and load them into transport vehicles or unload them to a stockpile yard. It consists of a power unit, a working device, a slewing mechanism, an operating mechanism, a transmission mechanism, a traveling mechanism and other structures.

[0003] A Chinese patent discloses a mining excavator (authorization announcement number CN204803932U). The patented technology pushes the excavated ore directly to one end of a belt conveyor through a hopper, and then transports it to a truck bucket located behind the excavator body through the belt conveyor, greatly improving the overall excavation efficiency.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: in actual use of existing excavators, since the cab is high above the ground, workers need to step on the excavation tracks to enter the cab, which is inconvenient for workers to climb, making it difficult for workers to get on and off the cab, and they are prone to stepping on empty air and getting injured, posing a hidden danger to the safety of the workers. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the prior art has the disadvantage that it is inconvenient for workers to get on and off the cab, so we propose a large-scale hydraulic excavator for mining.

[0006] In order to achieve the above-mentioned objectives, the present application adopts the following technical solutions: a large-scale mining hydraulic excavator, comprising a mounting seat, tracks are installed on both sides of the mounting seat, a boom is installed on the top of the mounting seat, a bucket is installed on the bottom of the boom, handrails are fixedly connected to the opposite sides of the tracks, pedals are fixedly connected to both sides of the mounting seat, a first extension plate is fixedly connected to both sides of the mounting seat, two handles are fixedly connected to both sides of the mounting seat, and two pull handles are fixedly connected to the end of the first extension plate away from the mounting seat.

[0007] Preferably, a hollow groove is provided inside the mounting seat, and a wire mesh is fixedly connected to the top of the hollow groove.

[0008] Preferably, hooks are fixedly connected to both sides of the front end of the bucket.

[0009] Preferably, three mounting blocks are fixedly connected to both sides of the movable arm, and the inner walls of the mounting blocks are rotatably connected to grip rods.

[0010] Preferably, both sides of the rear end of the mounting seat are fixedly connected with a second extension plate, the interior of the second extension plate is slidably connected with a U-shaped slide rod, the bottom of the U-shaped slide rod is fixedly connected with a scraper plate, and both sides of the second extension plate are threadedly connected with a threaded rod.

[0011] Preferably, springs are fixedly connected to both sides of the top of the scraper blade, and the top of the spring is fixedly connected to the bottom of the second extension plate.

[0012] Preferably, the scraper blade is made of high-strength steel.

[0013] Technical effects and advantages of the utility model:

[0014] In the utility model, the staff can hold the handrail and the handle to provide the force point and climb up to the first extension plate, and then climb up into the cab through the pedal and the handle, so that the staff can get on and off the excavator conveniently. At the same time, the same design on the other side makes it convenient for the staff to climb the excavator, inspect the excavator wall and other components, and is more convenient for the staff to perform maintenance work on the excavator.

[0015] In the utility model, a worker screws the threaded rod downward to push the scraper plate so that the U-shaped slide bar slides downward, and the bottom of the scraper plate abuts against the surface of the crawler track. Thus, when the crawler track is running, mud or foreign matter attached to the surface can be scraped off by the scraper plate, preventing foreign matter or mud from adhering to the crawler track surface and affecting the operation of the crawler track. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 It is a vertical cross-sectional view of the structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 A partial enlarged view of point C in the middle;

[0020] Figure 5 For this utility model Figure 3 A partial enlarged view of point B in the middle;

[0021] Figure 6 It is a schematic diagram of the climbing structure of the utility model.

[0022] Legend: 1. Mounting base; 2. Track; 3. Boom; 4. Bucket; 5. Handrail; 6. Pedal; 7. First extension plate; 8. Grip; 9. Pull handle; 10. Hollow groove; 11. Wire mesh; 12. Hook; 13. Mounting block; 14. Grip rod; 15. Second extension plate; 16. U-shaped slide bar; 17. Scraper; 18. Threaded rod; 19. Spring. DETAILED DESCRIPTION

[0023] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0024] Reference Figure 1 , Figure 3 and Figure 4 As shown, the utility model provides a technical solution: a large-scale hydraulic excavator for mining, comprising a mounting base 1, crawlers 2 are installed on both sides of the mounting base 1, a boom 3 is installed on the top of the mounting base 1, a bucket 4 is installed on the bottom of the boom 3, handrails 5 are fixedly connected to the opposite sides of the crawlers 2, pedals 6 are fixedly connected to both sides of the mounting base 1, first extension plates 7 are fixedly connected to both sides of the mounting base 1, two grips 8 are fixedly connected to both sides of the mounting base 1, and two pull handles 9 are fixedly connected to one end of the first extension plate 7 away from the mounting base 1. By holding the handrails 5 and the pull handles 9 to give force points, the staff can climb up to the first extension plate 7, and then climb up into the cab through the pedals 6 and the grips 8, so as to facilitate the staff to get on and off the excavator. At the same time, the same design on the other side facilitates the staff to climb the excavator, inspect the excavator wall and other components, and is more convenient for the staff to repair the excavator.

[0025] Reference Figure 3 and Figure 4 As shown, in this embodiment: a hollow groove 10 is opened inside the mounting seat 1, and a wire mesh 11 is fixedly connected to the top of the hollow groove 10. When the staff climbs to the top of the hollow groove 10, the hollow design of the wire mesh 11 allows the mud or other foreign matter attached to the soles of the staff to pass through the leakage holes and fall down, preventing the staff from bringing the mud on the soles of their feet into the cab and polluting the cab, thereby keeping the cab clean.

[0026] Reference Figure 1 and Figure 2 As shown, in this embodiment: both sides of the front end of the bucket 4 are fixedly connected with hooks 12. By setting the two hooks 12 at the front end of the bucket 4, when the staff repairs the bucket 4, they can insert the lifting rope through the hooks 12 to carry the bucket 4, which is more convenient for the staff to disassemble and repair the bucket 4.

[0027] Reference Figure 6 As shown, in this embodiment: three mounting blocks 13 are fixedly connected to both sides of the boom 3, and the inner wall of the mounting block 13 is rotatably connected to a grip rod 14. The worker rotates the grip rod 14 downward, and the right-angle design at the bottom of the grip rod 14 makes the grip rod 14 in a horizontal state. At this time, the worker can hold the grip rod 14 and climb up to the top of the boom 3 to inspect the excavator oil pump.

[0028] Reference Figure 3 and Figure 5 As shown, in this embodiment: second extension plates 15 are fixedly connected to both sides of the rear end of the mounting seat 1, a U-shaped slide bar 16 is slidably connected inside the second extension plate 15, a scraper plate 17 is fixedly connected to the bottom of the U-shaped slide bar 16, and threaded rods 18 are threadedly connected to both sides of the second extension plate 15. The staff screws the threaded rods 18 downward to push the scraper plate 17 so that the U-shaped slide bar 16 slides downward, and the bottom of the scraper plate 17 abuts against the surface of the crawler 2, so that when the crawler 2 is running, the mud or foreign matter attached to the surface can be scraped off by the scraper plate 17, preventing foreign matter or mud from adhering to the surface of the crawler 2 and affecting the operation of the crawler 2.

[0029] Reference Figure 3 and Figure 5 As shown, in this embodiment: springs 19 are fixedly connected to both sides of the top of the scraper blade 17, and the top of the spring 19 is fixedly connected to the bottom of the second extension plate 15. When the threaded rod 18 pushes the scraper blade 17 downward to move, the scraper blade 17 pulls the spring 19 to accumulate force. When the staff contacts the abutment of the threaded rod 18 on the scraper blade 17, the spring 19 releases the force generated, rebounds upward, and pulls the scraper blade 17 upward, thereby facilitating the staff to flexibly adjust the distance between the scraper blade 17 and the track 2.

[0030] Reference Figure 3 and Figure 5 As shown, in this embodiment: the scraper blade 17 is made of high-strength steel. By adopting the scraper blade 17 made of high-strength steel, the scraper blade 17 has a higher hardness, which prevents the scraper blade 17 from bending after long-term use and reducing the scraping effect on foreign matter.

[0031] The practical working principle of the present invention is that the staff can hold the handrail 5 and the handle 9 to provide the force point and climb up to the first extension plate 7, and then use the pedal 6 and the handle 8 to enable the staff to climb up into the cab, so as to facilitate the staff to get on and off the excavator. At the same time, the same design on the other side facilitates the staff to climb the excavator, inspect the excavator wall and other components, and is more convenient for the staff to perform maintenance work on the excavator. When the staff climbs to the top of the hollow groove 10, the hollow design of the wire mesh 11 allows the mud or other foreign matter attached to the soles of the staff to pass through the leakage holes and fall down, preventing the staff from bringing the mud on the soles of their feet into the cab and polluting the cab, thereby maintaining the cleanliness of the cab. Through the two hooks 12 set at the front end of the bucket 4, when the staff repairs the bucket 4, they can insert the lifting rope through the hook 12 to carry the bucket 4, which is more convenient for the staff to disassemble and repair the bucket 4. The staff rotates the grip rod 14 downward and the right-angle design at the bottom of the grip rod 14 , so that the grip bar 14 is in a horizontal state. At this time, the staff can hold the grip bar 14 and climb up to the top of the boom 3 to inspect the excavator oil pump. The staff twists the threaded rod 18 downward to push the scraper plate 17 to make the U-shaped slide bar 16 slide downward, so that the bottom of the scraper plate 17 abuts against the surface of the crawler 2, so that when the crawler 2 is running, the mud or foreign matter attached to the surface can be scraped off by the scraper plate 17, preventing foreign matter or mud from adhering to the surface of the crawler 2 and affecting the operation of the crawler 2. When the scraper blade 17 is pushed downward to move, the scraper blade 17 pulls the spring 19 to store force. When the worker contacts the abutment of the threaded rod 18 against the scraper blade 17, the spring 19 releases the force generated and rebounds upward to pull the scraper blade 17 to move upward, so that the worker can flexibly adjust the distance between the scraper blade 17 and the track 2. By adopting the scraper blade 17 made of high-strength steel, the scraper blade 17 has a higher hardness, which prevents the scraper blade 17 from bending after long-term use and reduces the scraping effect on foreign matter.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large hydraulic excavator for mining, comprising a mounting seat (1), characterized in that: Tracks (2) are installed on both sides of the mounting seat (1), a boom (3) is installed on the top of the mounting seat (1), a bucket (4) is installed on the bottom of the boom (3), handrails (5) are fixedly connected to the opposite sides of the tracks (2), pedals (6) are fixedly connected to both sides of the mounting seat (1), a first extension plate (7) is fixedly connected to both sides of the mounting seat (1), two handles (8) are fixedly connected to both sides of the mounting seat (1), and two pull handles (9) are fixedly connected to one end of the first extension plate (7) away from the mounting seat (1).

2. A large hydraulic excavator for mining according to claim 1, characterized in that: A hollow groove (10) is provided inside the mounting seat (1), and a steel wire mesh (11) is fixedly connected to the top of the hollow groove (10).

3. A large hydraulic excavator for mining according to claim 1, characterized in that: Both sides of the front end of the bucket (4) are fixedly connected with hooks (12).

4. A large hydraulic excavator for mining according to claim 1, characterized in that: Three mounting blocks (13) are fixedly connected to both sides of the movable arm (3), and the inner walls of the mounting blocks (13) are rotatably connected to grip rods (14).

5. A large hydraulic excavator for mining according to claim 1, characterized in that: The second extension plate (15) is fixedly connected to both sides of the rear end of the mounting seat (1), a U-shaped sliding rod (16) is slidably connected inside the second extension plate (15), a mud scraper (17) is fixedly connected to the bottom of the U-shaped sliding rod (16), and threaded rods (18) are threadedly connected to both sides of the second extension plate (15).

6. A large hydraulic excavator for mining according to claim 5, characterized in that: Springs (19) are fixedly connected to both sides of the top of the scraper plate (17), and the top of the spring (19) is fixedly connected to the bottom of the second extension plate (15).

7. A large hydraulic excavator for mining according to claim 5, characterized in that: The scraper blade (17) is made of high-strength steel.

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