Rock drill for geological disaster control

Abstract

The utility model relates to the technical field of rock drill accessories, and discloses a rock drill for geological disaster control, which comprises a movable arm, four sides of the outer side of the end part of the movable arm are connected with fixed frames I, and the inner side of each fixed frame I is connected with a rolling rotating rod I. The outer side of the movable arm is sleeved with a fixed arm; and the inner side of the end of the fixing arm is connected with a fixing frame II, and the inner side of the fixing frame II is connected with a rolling rotating rod II. The rotating rod I and the rotating rod II are arranged between the movable arm and the fixed arm, so that sliding friction between the movable arm and the fixed arm is converted into rolling friction, friction force of relative movement between the movable arm and the fixed arm is reduced, and contact abrasion between the rotating rod I and the movable arm and between the rotating rod II and the fixed arm is relieved.

Description

Technical Field

[0001] The present application relates to the technical field of rock drill accessories, and in particular to a rock drill for geological disaster management. Background Art

[0002] In geological disasters, such as floods, a large amount of rocks and earth-rock flows may hinder emergency rescue work, affect the drainage speed and may aggravate the flooding of the city. Rock drills can quickly mine rocks and accelerate drainage, thereby reducing the impact of disasters. In geological disasters that break concrete structures and collapsed objects, rock drills can hammer rocks at a high frequency to effectively reduce the weight and volume of collapsed objects and accelerate the cleaning progress, thereby helping rescue personnel to effectively deal with specific geological disasters. During the use of the rock drill, the arm mechanism of the rock drill can be divided into three types: single arm, telescopic arm and folding arm. In the existing telescopic arm, the telescopic arm includes a fixed arm, a movable arm and an internal telescopic cylinder. The fixed arm is movablely mounted on the movable arm. The movable arm slides in the fixed arm under the push of the internal telescopic cylinder to achieve telescopic action. Among them, sliding blocks are installed on all four sides of the tail of the movable arm and the outer side of the end of the fixed wall. The sliding blocks installed on the fixed arm facilitate the sliding of the movable arm along the inner side of the fixed arm.

[0003] During the use of the telescopic arm, the sliding of the movable arm relative to the fixed arm will cause wear of the sliding block between them, affecting the sliding process of the movable arm and the fixed arm; and after long-term use, the lubrication degree will gradually decrease, which will increase the amount of wear. Summary of the invention

[0004] The present application proposes a rock drill for geological disaster management, which has the advantages of less friction and high lubrication efficiency, and is used to solve the problem of large friction mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a rock drill for geological disaster control, comprising a movable arm, wherein the outer four sides of the end of the movable arm are connected to a fixed frame I, and the inner side of the fixed frame I is connected to a rolling rotating rod I, the outer side of the movable arm is sleeved with a fixed arm, and the inner side of the end of the fixed arm is connected to a fixed frame II, and the inner side of the fixed frame II is connected to a rolling rotating rod II, the outer sides of the rotating rod I and the rotating rod II are in contact with the outer side of the movable arm and the inner side of the fixed arm, and the movable arm slides on the inner side of the fixed arm through the outer rotating rods I and II.

[0006] Furthermore, the outer edges of the rotating rod I and the rotating rod II are both rounded.

[0007] Furthermore, a connecting piece is connected to the side of the fixed frame II facing the end of the fixed arm, and an oil box located on one side of the rotating rod II is provided on all four outer sides of the movable arm. The end of the connecting piece away from the rotating rod II is connected to a sliding plug located on the inner side of the oil box, and a return spring is connected to the side of the sliding plug close to the inside of the oil box. The return spring always pulls the sliding plug into the inner side of the oil box. The area formed between the sliding plug and the oil box is filled with lubricating oil, and a nozzle connecting the inside of the oil box and the outside of the sliding plug is connected to the middle of the sliding plug.

[0008] Furthermore, the connecting piece is an elastic band.

[0009] Furthermore, the nozzle is a one-way pressure relief valve, and the lubricating oil is sprayed through the nozzle in a one-way direction toward between the movable arm and the fixed arm.

[0010] Furthermore, the outer side of the return spring is covered with a rubber sleeve for isolating the return spring from the lubricating oil.

[0011] Furthermore, the outer side of the oil box is connected with a pipeline connected to the lubricating oil storage chamber.

[0012] Furthermore, annular grooves are provided at both ends of the outer sides of the rotating rod II and the rotating rod I, and rotating plates are connected to the annular grooves at equal circumferential angles.

[0013] Furthermore, when the end of the rotating plate away from the axis extends back toward the movable arm to the inner side of the fixed arm, the rotating direction of the rotating rod I and the rotating rod II.

[0014] The beneficial effect of the utility model is that by setting the rotating rod I and the rotating rod II between the movable arm and the fixed arm, the sliding friction between the movable arm and the fixed arm is converted into rolling friction, thereby reducing the friction force of the relative movement between the movable arm and the fixed arm, slowing down the contact wear of the rotating rod I and the rotating rod II with the movable arm and the fixed arm respectively, and stabilizing the relative movement between the movable arm and the fixed arm.

[0015] By setting the oil box, when the fixed frame II moves away from the oil box, the inner side of the oil box is filled with lubricating oil, and when the fixed frame II approaches the oil box, the sliding plug pushes the lubricating oil inside the oil box to be sprayed from the nozzle to between the movable arm and the fixed arm, thereby lubricating the movable arm and the fixed arm each time the movable arm moves relative to the fixed arm, further reducing the relative movement friction between the movable arm and the fixed arm. At the same time, by moving and rolling the rotating rod I and the rotating rod II, when the rotating rod I and the rotating rod II approach each other, the nozzle can be pushed to spray the lubricating oil, thereby making the lubricating oil evenly immersed in the contact surface of the rotating rod I and the rotating rod II with the movable arm and the fixed arm, quickly and evenly lubricating the oil and stabilizing the effectiveness of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0017] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the outer side of the movable arm structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the inner side of the oil box structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the fixed frame I structure and the rotating rod I structure of the utility model.

[0022] In the figure: 1. movable arm; 2. fixed arm; 3. fixed frame I; 4. rotating rod I; 5. fixed frame II; 6. rotating rod II; 7. oil box; 8. connecting piece; 9. sliding plug; 10. nozzle; 11. return spring; 12. rotating plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Embodiment 1

[0025] See also Figure 1 and Figure 2A rock drill for geological disaster management includes a movable arm 1, four outer sides of the end of the movable arm 1 are connected to fixed frames Ⅰ3, and the inner side of the fixed frame Ⅰ3 is connected to a rolling rotating rod Ⅰ4, the outer side of the movable arm 1 is sleeved with a fixed arm 2, and the inner side of the end of the fixed arm 2 is connected to a fixed frame Ⅱ5, and the inner side of the fixed frame Ⅱ5 is connected to a rolling rotating rod Ⅱ6, the outer sides of the rotating rod Ⅰ4 and the rotating rod Ⅱ6 are in contact with the outer side of the movable arm 1 and the inner side of the fixed arm 2, and the movable arm 1 slides on the inner side of the fixed arm 2 through the outer rotating rod Ⅰ4 and the rotating rod Ⅱ6, The rotating rod Ⅰ4 and the rotating rod Ⅱ6 roll in direct contact between the movable arm 1 and the fixed arm 2, so that the sliding friction between the movable arm 1 and the fixed arm 2 is converted into rolling friction, so that the friction intensity is reduced and the friction amount is reduced. At the same time, due to the rolling method of the rotating rod Ⅰ4 and the rotating rod Ⅱ6, the contact area between the movable arm 1 and the fixed arm 2 is reduced in an instantaneous manner, thereby reducing the instantaneous wear amount of the outer side of the rotating rod Ⅰ4 and the rotating rod Ⅱ6, and further reducing the wear speed of the outer side of the rotating rod Ⅰ4 and the rotating rod Ⅱ6, so that the service life of the rotating rod Ⅰ4 and the rotating rod Ⅱ6 is increased and the use cost is reduced.

[0026] See also Figure 2 The outer edges of the rotating rod Ⅰ4 and the rotating rod Ⅱ6 are chamfered. The rounded corners facilitate the rolling process of the rotating rod Ⅰ4 and the rotating rod Ⅱ6 between the movable arm 1 and the fixed arm 2, avoid the edges of the rotating rod Ⅰ4 and the rotating rod Ⅱ6 from contacting the sides of the movable arm 1 and the fixed arm 2, and protect the outer side surface of the movable arm 1 and the inner side surface of the fixed arm 2.

[0027] Embodiment 2

[0028] Embodiment 2 is based on Embodiment 1. Please refer to Figure 2 and Figure 3, a connecting piece 8 is connected to the side of the fixed frame II5 facing the end of the fixed arm 2, and an oil box 7 located on one side of the rotating rod II6 is provided on all four sides of the outer side of the movable arm 1. The outer side of the oil box 7 is connected with a pipeline connected to the lubricating oil storage chamber, and this pipeline is a one-way pipeline for passing oil into the inner side of the oil box 7. The end of the connecting piece 8 away from the rotating rod II6 is connected with a sliding plug 9 located on the inner side of the oil box 7, and the side of the sliding plug 9 close to the inside of the oil box 7 is connected with a return spring 11. The return spring 11 always pulls the sliding plug 9 to extend into the inner side of the oil box 7. The area formed between the sliding plug 9 and the oil box 7 is filled with lubricating oil, and the middle part of the sliding plug 9 is connected with a nozzle 10 connecting the inside of the oil box 7 and the outside of the sliding plug 9. The outer side of the sliding plug 9 is circumferentially connected to the oil box 7. The inner circumferential seal slides. Through the setting of the oil box 7, when the fixed frame II 5 is away from the outer side of the oil box 7, the fixed frame II 5 will drive the connected connecting piece 8, so that the connecting piece 8 pulls the sliding plug 9, so that the sliding plug 9 moves on the inner side of the oil box 7, so that the area formed by the oil box 7 and the sliding plug 9 is expanded, and the lubricating oil rushes into the inner side of the oil box 7 through the pipeline. When the fixed frame II 5 approaches the oil box 7, the fixed frame II 5 will release the sliding plug 9 again through the connecting piece 8, so that the sliding plug 9 moves to the inner side of the oil box 7 again and pushes the lubricating oil inside the oil box 7 to be sprayed to the outer side of the fixed frame II 5 through the nozzle 10, thereby performing real-time filling of the lubricating oil between the movable arm 1 and the fixed arm 2, ensuring the effectiveness of lubrication, and further reducing wear.

[0029] See also Figure 3 The connecting piece 8 is an elastic band, that is, the connecting piece 8 is elastically retractable, so that the fixed frame II 5 can drive the sliding plug 9 to work through the connected connecting piece 8 during movement, and when the sliding plug 9 moves to the end of the oil box 7, the position of the sliding plug 9 inside the oil box 7 can be kept unchanged by stretching the connecting piece 8, and when the fixed frame II 5 moves close to the oil box 7, the connecting piece 8 will shrink first. When the rotating rod II 6 gradually approaches the outer side of the oil box 7, the shrinkage of the connecting piece 8 increases and the elastic force decreases, and the return spring 11 will pull the sliding plug 9 to move inside the oil box 7, and then the lubricating oil inside the oil box 7 will be pushed by the sliding plug 9 to be sprayed toward the direction of the rotating rod II 6 through the nozzle 10 to add the lubricating oil, and through the volume setting of the oil box 7 and the moving length setting of the sliding plug 9, the amount of lubricating oil added in one movement process between the movable arm 1 and the fixed arm 2 can be controlled, so as to achieve a more precise control effect and reduce the waste of lubricating oil.

[0030] See also Figure 3 The nozzle 10 is a one-way pressure relief valve, and the lubricating oil is sprayed out in one direction toward between the movable arm 1 and the fixed arm 2 through the nozzle 10. By setting the nozzle 10 as a one-way pressure relief valve, the lubricating oil inside the oil box 7 can be sprayed out through the nozzle 10 only when it has a certain hydraulic pressure. Therefore, the lubricating oil sprayed out by the nozzle 10 has a certain impact force, so that the lubricating oil can be sprayed more evenly toward the rotating rod II 6, thereby accelerating the uniform process of filling the lubricating oil on the surface of the rolling element.

[0031] See also Figure 3 The outer side of the return spring 11 is covered with a rubber sleeve that isolates the return spring 11 from the lubricating oil. The rubber sleeve is set to isolate the outer side of the return spring 11 from the lubricating oil, reducing the influence of the lubricating oil on the return spring 11. At the same time, the return spring 11 continuously expands and contracts inside the lubricating oil, which can stir the lubricating oil and make the lubricating oil more uniform.

[0032] Embodiment 3

[0033] Example 3 is based on Example 2. Please refer to Figure 3 and Figure 4 Annular grooves are provided at both ends of the outer sides of the rotating rods Ⅱ6 and Ⅰ4, and the rotating plates 12 are connected at equal angles in the circumferential direction of the annular grooves. Through the setting of the rotating plate 12, after the outer sides of the rotating rods Ⅰ4 and Ⅱ6 are immersed in the lubricating liquid, part of the lubricating oil will flow to the outer side of the rotating plate 12, and then in the relative movement between the movable arm 1 and the fixed arm 2, the rotating rods Ⅰ4 and Ⅱ6 will rotate rapidly to drive the rotating plate 12 to swing out the lubricating oil circumferentially, so that the rotating plate 12 swings the lubricating oil to the side between the movable arm 1 and the fixed arm 2, thereby quickly lubricating the relative moving surface between the movable arm 1 and the fixed arm 2, thereby improving the lubrication efficiency.

[0034] See also Figure 4 When the end of the rotating plate 12 away from the axis extends back to the inner side of the fixed arm 2 toward the movable arm 1, the rotation direction of the rotating rod Ⅰ4 and the rotating rod Ⅱ6 is set in the direction of the rotating plate 12, so that the rotating plate 12 can push the lubricating oil out, further improving the uniform efficiency of the lubricating oil.

[0035] The usage (working principle) of the utility model is as follows:

[0036] When the movable arm 1 extends out of the fixed arm 2, the movable arm 1 drives the rotating rod Ⅰ4 and the fixed frame Ⅰ3 to move relative to the fixed arm 2, and the fixed arm 2 drives the fixed frame Ⅱ5 and the rotating rod Ⅱ6 to move relative to the movable arm 1, so that the rotating rod Ⅰ4 and the rotating rod Ⅱ6 in contact between the movable arm 1 and the fixed arm 2 will roll due to the relative movement. At the same time, the fixed frame Ⅱ5 will directly drive the connected connecting piece 8 to pull the sliding plug 9 on the inside of the oil box 7, so that the volume of the area formed by the oil box 7 and the sliding plug 9 will expand, so that the lubricating oil will be flushed into the inside of the oil box 7 through the pipeline, and the rolling friction will replace the sliding friction through the rolling of the rotating rod Ⅰ4 and the rotating rod Ⅱ6, thereby reducing the friction intensity.

[0037] When the movable arm 1 retracts into the interior of the fixed arm 2, the movable arm 1 drives the rotating rod Ⅰ4 and the fixed frame Ⅰ3 to move relative to the fixed arm 2, and the fixed arm 2 drives the fixed frame Ⅱ5 and the rotating rod Ⅱ6 to move relative to the movable arm 1, so that the rotating rod Ⅰ4 and the rotating rod Ⅱ6 in contact between the movable arm 1 and the fixed arm 2 roll again due to the relative movement. At the same time, the fixed frame Ⅱ5 will directly drive the connected connecting piece 8 to slowly release the sliding plug 9 inside the oil box 7, so that the return spring 11 inside the oil box 7 pulls the sliding plug 9 back to a position close to the inside of the oil box 7, so that the volume of the area formed by the oil box 7 and the sliding plug 9 is reduced, and then the lubricating liquid inside the oil box 7 is sprayed between the movable arm 1 and the fixed arm 2 through the nozzle 10, thereby lubricating the outer sides of the rotating rod Ⅰ4 and the rotating rod Ⅱ6, so that the relative movement friction between the movable arm 1 and the fixed arm 2 is further reduced, and the movable arm 1 and the fixed arm 2 are lubricated in real time.

Claims

1. A rock drill for geological disaster management, comprising a movable arm (1), characterized in that: The four outer sides of the end of the movable arm (1) are connected to a fixed frame I (3), and the inner side of the fixed frame I (3) is connected to a rolling rotating rod I (4). The outer side of the movable arm (1) is sleeved with a fixed arm (2), and the inner side of the end of the fixed arm (2) is connected to a fixed frame II (5), and the inner side of the fixed frame II (5) is connected to a rolling rotating rod II (6). The outer sides of the rotating rod I (4) and the rotating rod II (6) are in contact with the outer side of the movable arm (1) and the inner side of the fixed arm (2), and the movable arm (1) slides on the inner side of the fixed arm (2) through the outer rotating rod I (4) and the rotating rod II (6).

2. A rock drill for geological disaster management according to claim 1, characterized in that: The outer edges of the rotating rod I (4) and the rotating rod II (6) are both rounded.

3. A rock drill for geological disaster management according to claim 1, characterized in that: The side of the fixed frame II (5) facing the end of the fixed arm (2) is connected to a connecting piece (8), and the four outer sides of the movable arm (1) are all provided with an oil box (7) located on one side of the rotating rod II (6). The end of the connecting piece (8) away from the rotating rod II (6) is connected to a sliding plug (9) located inside the oil box (7), and the side of the sliding plug (9) close to the inside of the oil box (7) is connected to a return spring (11), and the return spring (11) always pulls the sliding plug (9) to extend into the inside of the oil box (7). The area formed between the sliding plug (9) and the oil box (7) is filled with lubricating oil, and the middle of the sliding plug (9) is connected to a nozzle (10) connecting the inside of the oil box (7) and the outside of the sliding plug (9).

4. A rock drill for geological disaster management according to claim 3, characterized in that: The connecting piece (8) is an elastic band.

5. A rock drill for geological disaster management according to claim 3, characterized in that: The nozzle (10) is a one-way pressure relief valve, and the lubricating oil is sprayed out in one direction toward between the movable arm (1) and the fixed arm (2) through the nozzle (10).

6. A rock drill for geological disaster management according to claim 3, characterized in that: The outer side of the return spring (11) is covered with a rubber sleeve isolating the return spring (11) from the lubricating oil.

7. A rock drill for geological disaster management according to claim 3, characterized in that: The outer side of the oil box (7) is connected with a pipeline connected to the lubricating oil storage chamber.

8. A rock drill for geological disaster management according to claim 3, characterized in that: Annular grooves are provided at both ends of the outer sides of the rotating rod II (6) and the rotating rod I (4), and rotating plates (12) are connected to the annular grooves at equal angles in the circumferential direction.

9. A rock drill for geological disaster management according to claim 8, characterized in that: The rotation direction of the rotating rod I (4) and the rotating rod II (6) when the end of the rotating plate (12) away from the axis extends back to the inner side of the fixed arm (2) toward the movable arm (1).

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