Multistage telescopic arm for dredging ore pass

Abstract

The utility model discloses a multistage telescopic arm for dredging an ore pass in the technical field of ore pass dredging devices. The multistage telescopic arm comprises a fixed arm and a movable arm inserted into the fixed arm in a sliding manner, the movable arm comprises a plurality of stages of movable arms which are sequentially connected in a sliding and inserted mode from outside to inside, linkage pieces are arranged on the movable arms, driving equipment is arranged on the fixed arm, the driving equipment is used for driving the first-stage movable arm on the outer side to move, and the linkage pieces are used for driving the adjacent next-stage movable arm on the inner side to move when the upper-stage movable arm moves. The driving equipment drives the moving arms on the outer side to move, and the linkage piece drives the adjacent moving arms on the inner side to move when one moving arm moves, so that the multi-stage telescopic arms extend after entering the interior of the ore pass, explosives can be accurately installed in the optimal blasting area of a blocked area, and the blasting efficiency is improved. And the effect of dredging the ore pass by explosives is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ore pass dredging devices, in particular to a multi-stage telescopic arm for ore pass dredging. Background Technique

[0002] As the main transportation channel for ore in mines, the ore pass plays a very important role in the process of mine exploitation; once the ore pass is blocked due to some reasons, it will seriously affect the normal progress of mine production and even lead to production suspension; currently, the main methods for dealing with the blockage of the ore pass include mechanical prying method, drilling and blasting method, bamboo pole suspended charge blasting method, hydrogen balloon suspended charge blasting method and mine rocket bombs, etc.; among them, when using the bamboo pole suspended charge method for blasting and dredging, due to the fixed length of the bamboo pole and the relatively long length of the bamboo pole, it is inconvenient for the bamboo pole to extend into the blocked area of the ore pass, making it difficult for the explosive to accurately reach the best blasting area and affecting the dredging effect of the ore pass. Content of the Utility Model

[0003] The purpose of the utility model is to provide a multi-stage telescopic arm for ore pass dredging, so as to solve the problem that due to the fixed length of the bamboo pole and the relatively long length of the bamboo pole, it is inconvenient for the bamboo pole to extend into the blocked area of the ore pass, making it difficult for the explosive to accurately reach the best blasting area and affecting the dredging effect of the ore pass as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A multi-stage telescopic arm for ore pass dredging, comprising: a fixed arm and a movable arm slidably inserted into the fixed arm;

[0005] The movable arm includes a plurality of movable arms slidably inserted into each other from outside to inside. A linkage is provided on the movable arm, and a driving device is provided on the fixed arm. The driving device is used to drive the outermost first-stage movable arm to move, and the linkage is used to drive the adjacent inner next-stage movable arm to move when the upper-stage movable arm moves.

[0006] Preferably, the driving device includes a driving member, a rotating member, a screw rod and a nut sleeve. The screw rod is rotatably arranged in the fixed arm and extends along the length direction of the fixed arm. The rotating member is sleeved on the outer wall of the screw rod. The driving member is arranged on the fixed arm and is used to drive the rotating member to rotate. The nut sleeve is arranged at the end of the outermost first-stage movable arm and is sleeved on the outer wall of the screw rod.

[0007] Preferably, the linkage includes a pulley arranged on the side wall of the movable arm and a pulling rope arranged on the pulley. Mounting blocks are arranged on the side walls of the fixed arm and the movable arm. The two ends of the pulling rope are respectively connected to the mounting block of the upper-stage movable arm and the end of the next-stage movable arm.

[0008] Preferably, the cross-sections of the fixed arm and the moving arm are both polygonal.

[0009] Preferably, a plurality of pulleys and ropes are provided on each of the moving arms, and the plurality of pulleys are respectively installed on the side walls of the moving arms.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: In this application, the outer moving arm is driven to move by a driving device, and when one moving arm moves, the linkage member will drive the adjacent inner moving arm to move, so that the multi-stage telescopic arm extends after entering the inside of the ore pass, enabling the explosive to be accurately installed in the best blasting area of the blocked area, ensuring the effect of the explosive in dredging the ore pass. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the multi-stage telescopic arm of the present utility model;

[0012] Figure 2 For the present utility model Figure 1 The enlarged schematic diagram of the structure at A in;

[0013] Figure 3 It is a schematic cross-sectional structure diagram of the multi-stage telescopic arm of the present utility model;

[0014] Figure 4 For the present utility model Figure 3 The enlarged schematic diagram of the structure at B in.

[0015] In the figure: 1, fixed arm; 2, driving member; 3, moving arm; 4, pulley; 5, mounting block; 6, rope; 7, rotating member; 8, screw; 9, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Embodiment 1

[0018] Please refer to Figure 1, a multi-stage telescopic arm for dredging a mine chute, comprising: a fixed arm 1 and a movable arm, the movable arm is slidably inserted into the inner cavity of the fixed arm 1; wherein the movable arm comprises a plurality of movable arms 3, and the plurality of movable arms 3 are slidably inserted together from the outside to the inside in sequence (taking three movable arms 3 as an example, the first movable arm 3 is slidably inserted into the inner cavity of the fixed arm 1, the second movable arm 3 is slidably inserted into the inner cavity of the first movable arm 3, the third movable arm 3 is slidably inserted into the inner cavity of the second movable arm 3, and so on), each movable arm 3 is installed with a linkage, and the fixed arm 1 is provided with a driving device;

[0019] Among them, see Figure 1 , Figure 2 , Figure 3 and Figure 4 , the linkage comprises a pulley 4 arranged on the side wall of the movable arm 3 and a pull rope 6 arranged on the pulley 4, mounting blocks 5 are arranged on the side walls of the fixed arm 1 and the movable arm 3, and both ends of the pull rope 6 are respectively connected with the mounting block 5 on the upper movable arm 3 and the tail end of the lower movable arm 3 (several movable arms 3 are marked as the first, second, third, etc. from the outside to the inside, the first movable arm 3 is the movable arm 3 that is slidably inserted into the inner cavity of the fixed arm 1, one end of the pull rope 6 on the movable arm 3 is connected with the mounting block 5 on the fixed arm 1, and the other end is connected with the tail end of the second movable arm 3, one end of the pull rope 6 on the second movable arm 3 is connected with the mounting block 5 on the first movable arm 3, and the other end is connected with the tail end of the third movable arm 3, and so on);

[0020] See also Figure 1 , Figure 3 and Figure 4 The driving device includes a driving member 2 (driving motor), a rotating member 7 (the rotating member 7 can be a driven gear, and a driving gear is provided on the output shaft of the driving motor, and the driving gear is meshed with the driven gear), a screw 8 and a screw sleeve 9; the screw 8 is rotatably arranged in the inner cavity of the fixed arm 1, and the screw 8 extends along the length direction of the fixed arm 1. The rotating member 7 is fixedly sleeved on the outer wall of the screw 8, the driving member 2 is arranged on the side wall of the fixed arm 1, the screw sleeve 9 is arranged at the tail end of the outer first-stage moving arm 3 (the outer first-stage moving arm 3 refers to the moving arm 3 slidably inserted in the inner cavity of the fixed arm 1), and the screw sleeve 9 is sleeved on the outer wall of the screw 8.

[0021] Working principle: When the driving member 2 is powered on and operates, it drives the rotating member 7 to rotate the screw rod 8, causing the screw sleeve 9 to move, and driving the first moving arm 3 to move outward from the fixed arm 1; when the first moving arm 3 moves outward from the fixed arm 1, the pulley 4 on this moving arm 3 also moves, increasing the distance between it and the fixed arm 1, which causes the pulling rope 6 on the pulley 4 to pull the second moving arm 3 to move outward from the first moving arm 3; similarly, when the second moving arm 3 moves, the third moving arm 3 will also be driven to move, and so on, causing several moving arms 3 to move simultaneously, extending the multi-stage telescopic arm.

[0022] It should be noted that the explosive is fixed on the outer end of the innermost moving arm 3. Extending the multi-stage telescopic arm can push the explosive to the blocked area of the ore pass; during the blasting process, the multi-stage telescopic arm can remain inside the ore pass to support the explosive; when applying glue to the explosive and the multi-stage telescopic arm presses the explosive against the bottom of the ore in the blocked area, after sticking the explosive to the bottom of the ore with the glue, the multi-stage telescopic arm is removed from the inside of the ore pass, enabling the multi-stage telescopic arm to be reused.

[0023] It should also be noted that a travel switch is installed on the fixed arm 1 to limit the outward movement length of the moving arm 3, ensuring that the travel of the multi-stage telescopic arm does not exceed the range.

[0024] In this embodiment, as a further optimized solution, please refer to Figure 1 and Figure 3 , the cross-sections of the fixed arm 1 and the moving arm 3 are both polygonal, such as triangular, quadrilateral, pentagonal, hexagonal, etc.; the outer side wall of the first moving arm 3 fits against the inner side wall of the fixed arm 1, and the outer and inner side walls between the moving arms 3 fit against each other. The shape of the polygon is used to limit the moving arm 3 so that the moving arm 3 can only move and cannot rotate.

[0025] In this embodiment, as a further optimized solution, please refer to Figure 1 , each moving arm 3 has several pulleys 4 (the number of pulleys 4, pulling ropes 6 and mounting blocks 5 match), and several pulleys 4 are respectively installed on different side walls of the moving arm 3; the pulleys 4 and pulling ropes 6 are evenly distributed, making the force that the linkage drives the moving arm 3 to move more uniform.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage telescopic arm for dredging a mine chute, characterized in that: Comprising: A fixed arm (1) and a movable arm slidably inserted into the fixed arm (1); The movable arm includes a plurality of levels of movable arms (3) slidably inserted into each other from the outside to the inside. A linkage is provided on the movable arm (3), and a driving device is provided on the fixed arm (1). The driving device is used to drive the outermost first-level movable arm (3) to move, and the linkage is used to drive the adjacent inner lower-level movable arm (3) to move when the upper-level movable arm (3) moves.

2. A multi-stage telescopic arm for dredging a mine chute according to claim 1, characterized in that: The driving device includes a driving member (2), a rotating member (7), a screw rod (8), and a screw sleeve (9). The screw rod (8) is rotatably arranged in the fixed arm (1), and the screw rod (8) extends along the length direction of the fixed arm (1). The rotating member (7) is sleeved on the outer wall of the screw rod (8). The driving member (2) is arranged on the fixed arm (1) and is used to drive the rotating member (7) to rotate. The screw sleeve (9) is arranged at the tail end of the outermost first-level movable arm (3) and is sleeved on the outer wall of the screw rod (8).

3. The multi-stage telescopic arm for dredging a mine chute according to claim 1, characterized in that: The linkage includes a pulley (4) arranged on the side wall of the movable arm (3) and a pulling rope (6) arranged on the pulley (4). Mounting blocks (5) are provided on the side walls of both the fixed arm (1) and the movable arm (3). The two ends of the pulling rope (6) are respectively connected to the mounting block (5) of the upper-level movable arm (3) and the tail end of the lower-level movable arm (3).

4. The multi-stage telescopic arm for dredging a mine chute according to claim 1, characterized in that: The cross-sections of both the fixed arm (1) and the movable arm (3) are polygonal.

5. The multi-stage telescopic arm for dredging a mine chute according to claim 3, characterized in that: A plurality of pulleys (4) and pulling ropes (6) are provided on each movable arm (3), and the plurality of pulleys (4) are respectively mounted on the side walls of the movable arm (3).

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