Lifting mechanism of mining excavator

Abstract

The utility model relates to the technical field of lifting mechanisms, and discloses a mining excavator lifting mechanism which comprises a base, supporting frames are fixedly connected to the left side and the right side of the upper portion of the base respectively, a winding drum is arranged on the corresponding sides of the supporting frames, a sealing cover is arranged on the right side in the winding drum, a blocking hole is formed in the right side in the winding drum, and the sealing cover is arranged in the blocking hole. An oil injection groove is formed in the left side of the blocking hole, a sealing ball is arranged on the left side of the sealing cover, a movable circular plate is fixedly connected to the left side of the sealing ball, a spring is fixedly connected to the left side of the movable circular plate, one end of the spring is fixedly connected to the interior of the oil injection groove, and a storage assembly is arranged on the left side of the oil injection groove; the storage assembly comprises an oil storage cavity which is formed in the left side of the oil injection groove. According to the lifting mechanism, the winding drum is lubricated, lubricating oil is stored, friction is prevented from being increased, abrasion of parts is prevented from being aggravated, and therefore the reliability of the lifting mechanism is reduced, and the service life of the lifting mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mechanisms, in particular to a lifting mechanism for a mining excavator. Background Art

[0002] Mining excavator lifting mechanisms are usually designed to lift heavy materials or equipment in mining and excavation projects. These mechanisms need to have strong load-bearing capacity, stability and reliability to cope with harsh working environments and large workloads.

[0003] After searching, the Chinese patent announcement number: CN210340162U discloses a lifting mechanism of a mining excavator, including a machine base, two mounting plates are fixedly connected to the machine base, a first drum is arranged between the two mounting plates, both ends of the first drum are fixedly connected with a rotating shaft, the two mounting plates are fixedly connected with a first bearing, the two rotating shafts are respectively mounted on the two first bearings, a mounting rod is arranged between the two mounting plates, the two mounting plates are fixedly connected with a second bearing, the mounting rod is mounted on the two second bearings, the outer side of the mounting rod is sleeved with two second drums fixedly connected thereto, the mounting rod is connected to one of the rotating shafts through a transmission mechanism, although the patent technology can pull the material through the two second steel cables after the first steel cable breaks, and will not let it fall, reducing the waste of materials and having high safety, but does not solve the problem of device lubrication, which leads to increased friction and aggravated wear of parts, thereby reducing the reliability and service life of the lifting mechanism, therefore, those skilled in the art provide a lifting mechanism for a mining excavator to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a lifting mechanism for a mining excavator, aiming to improve the problem of device lubrication that has not been solved in the prior art, thereby causing increased friction and increased wear of parts, thereby reducing the reliability and service life of the lifting mechanism.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting mechanism for a mining excavator, comprising a base, wherein the left and right sides of the upper part of the base are fixedly connected to support frames, a reel is provided on the corresponding side of the support frame, a sealing cover is provided on the right side of the interior of the reel, a blocking hole is provided on the right side of the interior of the reel, an oil filling groove is provided on the left side of the blocking hole, a sealing ball is provided on the left side of the sealing cover, a movable circular plate is fixedly connected to the left side of the sealing ball, a spring is fixedly connected to the left side of the movable circular plate, one end of the spring is fixedly connected to the inside of the oil filling groove, and a storage assembly is provided on the left side of the oil filling groove.

[0006] As a further description of the above technical solution:

[0007] The storage assembly comprises an oil storage cavity, which is arranged on the left side of the oil filling groove. The interior of the reel is provided with evenly distributed oil outlet holes, which are communicated with the oil storage cavity.

[0008] As a further description of the above technical solution:

[0009] The interior of the reel is fixedly connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a motor, the motor is fixedly connected to one side of the support frame, and the rotating shaft is rotatably connected to the interior of the support frame.

[0010] As a further description of the above technical solution:

[0011] The four upper corners of the base are fixedly connected with fixed blocks, the corresponding sides of the fixed blocks are fixedly connected with connecting frames, the interior of the connecting frame is fixedly connected with a connecting shaft, the exterior of the connecting shaft is rotatably connected with a roller, and the corresponding side of the roller is rotatably connected with a rotating ring.

[0012] As a further description of the above technical solution:

[0013] The rotating ring is fixedly connected to the left and right sides of the outside of the reel.

[0014] As a further description of the above technical solution:

[0015] The sealing ball and the movable circular plate are slidably connected inside the oil filling groove.

[0016] As a further description of the above technical solution:

[0017] A pull ring is fixedly connected to the right side of the sealing cover.

[0018] As a further description of the above technical solution:

[0019] The sealing cover is slidably connected to the inside of the blocking hole.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, lubrication of the reel and storage of lubricating oil are achieved through the coordinated use of structures such as the pull ring, sealing cover, plugging hole, sealing ball, movable circular plate, spring, liquid injection groove, oil storage chamber, reel, oil outlet hole, etc., to avoid increased friction and increased wear of parts, thereby reducing the reliability and service life of the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a lifting mechanism for a mining excavator proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the supporting wheel structure of a lifting mechanism of a mining excavator proposed by the utility model;

[0024] Figure 3 This is a cross-sectional view of a drum of a lifting mechanism of a mining excavator proposed by the utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A.

[0026] Legend:

[0027] 1. Base; 2. Fixed block; 3. Roller; 4. Support frame; 5. Rotating ring; 6. Reel; 7. Oil outlet hole; 8. Rotating shaft; 9. Motor; 10. Connecting shaft; 11. Connecting frame; 12. Oil storage chamber; 13. Pull ring; 14. Sealing cover; 15. Blocking hole; 16. Sealing ball; 17. Moving round plate; 18. Oil filling groove; 19. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: a mining excavator lifting mechanism, including a base 1, the upper left and right sides of the base 1 are fixedly connected with a support frame 4, the corresponding side of the support frame 4 is provided with a reel 6, the inner right side of the reel 6 is provided with a sealing cover 14, the inner right side of the reel 6 is provided with a blocking hole 15, the left side of the blocking hole 15 is provided with an oil filling groove 18, the left side of the sealing cover 14 is provided with a sealing ball 16, the left side of the sealing ball 16 is fixedly connected with a moving circular plate 17, the left side of the moving circular plate 17 is fixedly connected with a spring 19, one end of the spring 19 is fixedly connected to the inside of the oil filling groove 18, the left side of the oil filling groove 18 is provided with a storage assembly, the sealing ball 16 and the moving circular plate 17 are slidably connected to the inside of the oil filling groove 18, the right side of the sealing cover 14 is fixedly connected with a pull ring 13, and the sealing cover 14 is slidably connected to the inside of the blocking hole 15;

[0030] The storage assembly includes an oil storage chamber 12 , which is opened on the left side of the oil filling groove 18 . The interior of the reel 6 is provided with evenly distributed oil outlet holes 7 , which are communicated with the oil storage chamber 12 .

[0031] By pulling the pull ring 13, the sealing cover 14 is separated from the blocking hole 15, and the sealing ball 16 is pushed to the left. The spring 19 is squeezed by the movable circular plate 17, so that the lubricating oil flows into the oil storage chamber 12 through the oil filling groove 18 for storage. When the reel 6 rotates, the lubricating oil flows out through the oil outlet 7 to lubricate the reel 6.

[0032] Reference Figure 1 and Figure 2 The inside of the reel 6 is fixedly connected with a rotating shaft 8, one end of the rotating shaft 8 is fixedly connected with a motor 9, the motor 9 is fixedly connected to one side of the support frame 4, the rotating shaft 8 is rotatably connected to the inside of the support frame 4, the four upper corners of the base 1 are fixedly connected with fixed blocks 2, the corresponding sides of the fixed blocks 2 are fixedly connected with connecting frames 11, the inside of the connecting frame 11 is fixedly connected with a connecting shaft 10, the outside of the connecting shaft 10 is rotatably connected with a roller 3, the corresponding side of the roller 3 is rotatably connected with a rotating ring 5, and the rotating ring 5 is fixedly connected to the left and right sides of the outside of the reel 6.

[0033] The motor 9 is started to drive the rotating shaft 8 to rotate the reel 6, and rotate inside the support frame 4, while driving the rotating ring 5 to rotate, so that the roller 3 rotates inside, and the roller 3 is fixedly connected via the fixed block 2 and the connecting frame 11, so that it assists in rotating and lifting the reel 6.

[0034] Working principle: When the device is needed, the motor 9 is started, and the motor 9 starts to drive the reel 6 to rotate through the rotating shaft 8, which drives the rotating ring 5 to rotate, so that the roller 3 rotates inside it, so that it assists in rotating and lifting the reel 6, and the sealing cover 14 is driven to move and separate from the blocking hole 15 by pulling the pull ring 13, and the sealing ball 16 is squeezed to the left, so that the movable circular plate 17 squeezes the spring 19, so that the lubricating oil passes through the oil filling groove 18 and enters the oil storage chamber 12 for storage. When the reel 6 rotates, the lubricating oil flows out through the oil outlet 7 to lubricate the reel 6, thereby realizing the lubrication of the reel 6 and the storage of the lubricating oil, avoiding increased friction and increased wear of components, thereby reducing the reliability and service life of the lifting mechanism.

[0035] 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 lifting mechanism for a mining excavator, comprising a base (1), characterized in that: The upper left and right sides of the base (1) are fixedly connected to support frames (4), the corresponding side of the support frame (4) is provided with a reel (6), the inner right side of the reel (6) is provided with a sealing cover (14), the inner right side of the reel (6) is provided with a blocking hole (15), the left side of the blocking hole (15) is provided with an oil filling groove (18), the left side of the sealing cover (14) is provided with a sealing ball (16), the left side of the sealing ball (16) is fixedly connected to a movable circular plate (17), the left side of the movable circular plate (17) is fixedly connected to a spring (19), one end of the spring (19) is fixedly connected to the inside of the oil filling groove (18), and the left side of the oil filling groove (18) is provided with a storage component.

2. A mining excavator lifting mechanism according to claim 1, characterized in that: The storage assembly comprises an oil storage chamber (12), the oil storage chamber (12) is opened on the left side of the oil filling groove (18), and the interior of the reel (6) is provided with evenly distributed oil outlet holes (7), and the oil outlet holes (7) are communicated with the oil storage chamber (12).

3. A mining excavator lifting mechanism according to claim 1, characterized in that: The interior of the reel (6) is fixedly connected to a rotating shaft (8), one end of the rotating shaft (8) is fixedly connected to a motor (9), the motor (9) is fixedly connected to one side of the support frame (4), and the rotating shaft (8) is rotatably connected to the interior of the support frame (4).

4. A mining excavator lifting mechanism according to claim 1, characterized in that: The four upper corners of the base (1) are fixedly connected to fixed blocks (2), the corresponding sides of the fixed blocks (2) are fixedly connected to connecting frames (11), the interior of the connecting frame (11) is fixedly connected to a connecting shaft (10), the exterior of the connecting shaft (10) is rotatably connected to a roller (3), and the corresponding side of the roller (3) is rotatably connected to a rotating ring (5).

5. A lifting mechanism for a mining excavator according to claim 4, characterized in that: The rotating ring (5) is fixedly connected to the left and right sides of the outside of the reel (6).

6. A mining excavator lifting mechanism according to claim 1, characterized in that: The sealing ball (16) and the movable circular plate (17) are slidably connected inside the oil filling groove (18).

7. A mining excavator lifting mechanism according to claim 1, characterized in that: A pull ring (13) is fixedly connected to the right side of the sealing cover (14).

8. A lifting mechanism for a mining excavator according to claim 1, characterized in that: The sealing cover (14) is slidably connected inside the blocking hole (15).

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