A two-stage climbing explosive bracket for dredging mine shafts

By designing a secondary climbing explosive bracket and using elastic pushing parts and rope pulling mechanisms, the problem of height limitation of explosive installation is solved, effective contact between the explosive and the blocked area is achieved, and the effect of unblocking the mine shaft is improved.

CN118776411BActive Publication Date: 2024-12-10ANHUI JARLO CONSTR MACHINERY
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Patent Information

Application Number
CN202411268978.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2024-12-10
Estimated Expiration
2044-09-11

AI Technical Summary

Technical Problem

In existing mine-sliding shaft dredging equipment, the height of the explosive installation is limited by the length of the telescopic arm, resulting in a distance between the explosive and the blocked area, affecting the blasting dredging effect.

Method used

Design a secondary climbing explosive bracket including mounting cylinder, upper support, lower support, articulated legs and draw rope. Using elastic pushing parts and draw rope mechanism, the explosive bracket is fixed and climbed in the mine shaft. , reduce the distance between the explosives and the blocked area.

Benefits of technology

Through the secondary climbing mechanism, the explosive bracket can climb to the blocked area independently when the telescopic arm stroke is limited, improving the effect of unblocking the mine shaft, increasing the contact area between the explosive and the blocked area, and improving the blasting effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a two-stage climbing explosive bracket for dredging a chute, which comprises: a mounting tube, an upper support and a lower support are respectively arranged at two ends of the mounting tube, a bracket is arranged on the upper support, a plurality of upper legs are hinged on the side wall of the upper support, and a plurality of lower legs are hinged on the side wall of the lower support. In the present application, after the explosive bracket is driven into the interior of the chute by a telescopic arm, a first pull rope is pulled to rotate and unfold the upper legs, and the explosive bracket is fixed in the interior of the chute, and then a second pull rope is pulled to rotate and unfold the lower legs to contact the inner wall of the chute, so as to provide support for the explosive bracket and store force for an elastic pushing member at the same time. After the upper legs are contracted, the elastic pushing member pushes the upper support upward to drive the explosive on the bracket to climb, so that the installation height of the explosive is not affected by the stroke of the telescopic arm, the distance between the explosive and the blocked area is reduced, and the dredging effect of the explosive on the chute is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of mine dredging equipment, in particular to a two-stage climbing explosive bracket for mine dredging. Background Art

[0002] A chute is a tunnel that uses its own weight to discharge ore from top to bottom. As the main transportation channel for mine ore, the chute plays a very important role in the mining process. Once a chute is blocked for some reason, it will seriously affect the normal production of the mine and even cause production to stop. Traditional methods for dealing with chute blockage mainly include mechanical prying, drilling blasting, bamboo pole cantilevered charge blasting, hydrogen balloon suspended charge blasting and mining rockets. Among them, when the bamboo pole cantilevered charge blasting method is adopted, in order to facilitate the installation of explosives, a telescopic arm is generally used instead of the bamboo pole. The fixing part of the conveyor belt explosive is extended by the telescopic arm, so that the fixing part is close to the installation area and fixed, and then the explosive is detonated to clear the chute. However, the existing installation height of explosives is limited by the length of the telescopic arm. When the travel of the telescopic arm is short, there will be a certain distance between the installation area of ​​the explosives and the blocked area, which affects the effect of blasting and clearing the chute. Summary of the invention

[0003] The purpose of the present invention is to provide a two-stage climbing explosive bracket for dredging mine chutes, so as to solve the problem proposed in the above-mentioned background technology that the installation height of the existing explosives is limited by the length of the telescopic arm. When the length of the telescopic arm is short, there will be a certain distance between the installation area of ​​the explosives and the blocked area, which affects the blasting and dredging effect of the mine chutes.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a two-stage climbing explosive bracket for dredging a mine chute, comprising: a mounting tube, an upper support and a lower support are respectively provided at both ends of the mounting tube, a bracket for fixing explosives is provided on the upper support, a plurality of upper legs are hinged on the side wall of the upper support, a plurality of lower legs are hinged on the side wall of the lower support, a first pull rope for pulling the upper legs to rotate and unfold is provided on the upper legs, and a second pull rope for pulling the lower legs to rotate and unfold and move upward is provided on the lower legs;

[0005] An elastic pusher is arranged in the installation tube, and the elastic pusher is used for compressing and storing force when the lower leg rotates, unfolds and moves upward, and expanding and pushing the upper support to climb upward when the upper leg contracts.

[0006] Preferably, the elastic pushing member comprises a mounting seat arranged in the mounting tube and an elastic member arranged on the mounting seat, and one end of the elastic member away from the mounting seat is connected to the upper support.

[0007] Preferably, guide pulleys are provided on the side walls of the upper support and the lower support, one end of the first pull rope is connected to the side wall of the upper support leg, the other end of the first pull rope is guided by the upper guide pulley and then passes through the installation cylinder from above the installation cylinder, one end of the second pull rope is connected to the side wall of the lower support leg, the other end of the second pull rope is guided by the lower guide pulley and the upper guide pulley in sequence and then passes through the installation cylinder from above the installation cylinder.

[0008] Preferably, one end of the upper leg away from the upper support faces the lower support, and one end of the lower leg away from the lower support faces the upper support, and the upper leg and the lower leg are arranged in an alternating manner.

[0009] Preferably, the upper leg comprises a sleeve, a moving rod slidably inserted into the sleeve, and a spring member disposed between the sleeve and the moving rod;

[0010] Wherein, the structure of the lower supporting leg is the same as that of the upper supporting leg.

[0011] Preferably, the end of the moving rod away from the sleeve is tapered.

[0012] Preferably, there are at least three upper legs and at least three lower legs.

[0013] Preferably, the lower support is provided with an elastic reset member to drive the rotated and unfolded lower support leg to reset.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present application, after the explosive bracket is driven into the interior of the chute by the telescopic arm, the first pull rope is pulled to rotate and unfold the upper leg to fix the explosive bracket inside the chute, and then the second pull rope is pulled to rotate and unfold the lower leg to contact the inner wall of the chute, thereby providing support for the explosive bracket and storing force for the elastic pushing member. After the upper leg contracts, the elastic pushing member pushes the upper support upward to drive the explosive on the bracket to climb, so that the installation height of the explosive is not affected by the stroke of the telescopic arm, the distance between the explosive and the blocked area is reduced, and the dredging effect of the explosive on the chute is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the secondary climbing explosive bracket of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure between the mounting cylinder and the upper support of the present invention;

[0017] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper supporting leg of the present invention;

[0019] Figure 5 It is a schematic diagram of the expanded structure of the secondary climbing explosive bracket of the present invention.

[0020] In the figure: 1, mounting cylinder; 2, upper support; 3, lower support; 4, bracket; 5, upper leg; 51, kit; 52, moving rod; 53, spring member; 6, lower leg; 7, first pull rope; 8, second pull rope; 9, guide pulley; 10, elastic member. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1 and Figure 2 A two-stage climbing explosive bracket for dredging a mine chute comprises: a mounting tube 1, an upper support 2 is arranged at the top of the mounting tube 1, a lower support 3 is arranged at the bottom of the mounting tube 1, a bracket 4 is arranged on the top of the upper support 2, and explosives are placed on the bracket 4; a plurality of upper legs 5 are hinged on the side wall of the upper support 2 (the plurality of upper legs 5 are distributed around the upper support 2 in a ring shape), and a plurality of lower legs 6 are hinged on the side wall of the lower support 3 (the plurality of lower legs 6 are distributed around the lower support 3 in a ring shape); a first pull rope 7 is arranged on the side wall of the plurality of upper legs 5, and a second pull rope 8 is arranged on the side wall of the plurality of lower legs 6;

[0024] See also Figure 2 , Figure 3 and Figure 5 An elastic pushing member is provided in the inner cavity of the mounting tube 1, wherein the elastic pushing member includes a mounting seat fixed in the inner cavity of the mounting tube 1 and an elastic member 10 (spring) provided on the top wall of the mounting seat, and one end of the elastic member 10 away from the mounting seat is connected to the upper support 2, and the upper support 2 is slidably provided on the outer wall of the mounting tube 1 (the upper support 2 can move up and down).

[0025] See also Figure 2 , Figure 3 and Figure 5, guide pulleys 9 are provided on the side walls of the upper support 2 and the lower support 3 (there are several guide pulleys 9 on the upper and lower sides, the number of upper guide pulleys 9 is the same as the number of first pull ropes 7 and corresponds one to one, the number of lower guide pulleys 9 is the same as the number of second pull ropes 8 and corresponds one to one, and the number of first pull ropes 7 is the same as the number of second pull ropes 8), one end of the first pull rope 7 is connected to the side wall of the upper leg 5, the other end of the first pull rope 7 is guided by the upper guide pulley 9 and then passes through the installation cylinder 1 from above the installation cylinder 1, one end of the second pull rope 8 is connected to the side wall of the lower leg 6, the other end of the second pull rope 8 is guided by the lower guide pulley 9 and the upper guide pulley 9 in turn and then passes through the installation cylinder 1 from above the installation cylinder 1, and the ends of the first pull rope 7 and the second pull rope 8 both extend to the bottom of the installation cylinder 1.

[0026] It should be noted that several first pull ropes 7 are bundled together after entering the inner cavity of the installation tube 1, and several second pull ropes 8 are also bundled together after entering the inner cavity of the installation tube 1; it is convenient to pull several first pull ropes 7 or several second pull ropes 8 to move at the same time.

[0027] In this embodiment, as a further optimized solution, please refer to Figure 1 and Figure 3 The end of the upper leg 5 away from the upper support 2 is toward the lower support 3 (so that the elastic member 10 pushes the upper support 2 upward without the upper leg 5 being an obstacle), and the end of the lower leg 6 away from the lower support 3 is toward the upper support 2, so that the upper leg 5 is rotated and unfolded from the bottom to the top, and the lower leg 6 is rotated and unfolded from the top to the bottom, so that the space occupied by the upper leg 5 and the lower leg 6 when folded is reduced, which facilitates the explosive bracket to enter the interior of the chute; the upper leg 5 and the lower leg 6 are staggered so that the upper leg 5 and the lower leg 6 will not interfere with each other.

[0028] In this embodiment, as a further optimized solution, please refer to Figure 4 The upper leg 5 includes a kit 51, a moving rod 52 slidably inserted into the kit 51, and a spring member 53 (spring) provided between the kit 51 and the moving rod 52; the lower leg 6 has the same structure as the upper leg 5.

[0029] In this embodiment, as a further optimized solution, please refer to Figure 1 and Figure 2 The end of the moving rod 52 away from the kit 51 is tapered, which facilitates the upper leg 5 and the lower leg 6 to be inserted into the side wall of the chute; there are at least three upper legs 5 and lower legs 6 to ensure the stability of the explosive bracket fixed inside the chute.

[0030] In this embodiment, as a further optimized solution, please refer to Figure 2An elastic reset member (spring) is provided between the lower support 3 and the plurality of lower legs 6; when the lower legs 6 are unfolded and the second pull rope 8 is loosened, the tension on the lower legs 6 disappears, and under the action of the elastic reset member, the lower legs 6 rotate and reset.

[0031] Working principle: fix the lower support 3 on the moving end of the telescopic arm (the telescopic arm refers to the electric push rod, and the lower support 3 is connected with the moving end of the electric push rod, that is, a card block is installed on the moving end of the electric push rod, and a card slot is provided at the bottom of the lower support 3. The card block is inserted into the card slot. The lower support 3 is installed on the moving end of the electric push rod through the friction force of the contact between the two), and then fix the explosives on the bracket 4; move the telescopic arm, move the explosive bracket to the inside of the chute, and then extend the telescopic arm to move the explosive bracket up (straight The telescopic arm is pulled until it cannot move up again), and then the first pull rope 7 is pulled (pulling the first pull rope 7 refers to the first pull rope 7 passing through the installation tube 1), so that the plurality of upper legs 5 rotate and expand to contact the inner wall of the chute, and the explosive bracket is fixed inside the chute; then the telescopic arm is contracted, so that the telescopic arm is separated from the lower support 3 of the explosive bracket, and the telescopic arm is moved out of the chute; when the gap between the explosive and the blocked area is large, the second pull rope 8 is pulled (pulling the second pull rope 8 refers to the second pull rope passing through the installation tube 1 Pull rope 8), since the upper support 2 is fixed inside the ore chute, when the second pull rope 8 is pulled, it will move the installation tube 1 and the lower support 3 upward, compressing the elastic member 10 until the installation tube 1 and the lower support 3 cannot move. The second pull rope 8 continues to be pulled, which will cause several lower legs 6 to rotate and expand to contact the inner wall of the ore chute to provide support for the explosive bracket. Then the first pull rope 7 is released to reduce the contact force between the upper leg 5 and the ore chute, so that the support force provided by the upper leg 5 to the explosive bracket disappears. At this time, the compressed elastic member 10 The member 10 expands, pushing the upper support 2 and the upper leg 5 to move upward, so that the distance between the explosive and the blocked area of ​​the chute is reduced, and then the first pull rope 7 is pulled to rotate and unfold the upper leg 5 to support the explosive bracket, and then the second pull rope 8 is loosened to retract and reset the lower leg 6, and the above operation is repeated (start pulling the second pull rope 8) to make the explosive bracket climb inside the chute until the explosive approaches the blocked area, and then the first pull rope 7 and the second pull rope 8 are fixed, and then the explosive is detonated to clear the chute.

[0032] It should be noted that after the explosive bracket is lifted to the first level by the telescopic arm, when there is still a certain distance between the explosive and the blocked area, the explosive bracket itself can achieve a second level of lifting to reduce the distance between the explosive and the blocked area and improve the dredging effect.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-stage climbing explosive bracket for dredging a mine chute, comprising: The installation cylinder (1) is characterized in that: an upper support (2) and a lower support (3) are respectively provided at both ends of the installation cylinder (1); a bracket (4) for fixing explosives is provided on the upper support (2); a plurality of upper legs (5) are hingedly connected to the side wall of the upper support (2); a plurality of lower legs (6) are hingedly connected to the side wall of the lower support (3); a first pull rope (7) for pulling the upper legs (5) to rotate and unfold is provided on the upper legs (5); and a second pull rope (8) for pulling the lower legs (6) to rotate and unfold and move upward is provided on the lower legs (6); An elastic pusher is provided in the installation cylinder (1), and the elastic pusher is used to compress and store force when the lower leg (6) rotates, unfolds and moves upward, and to expand and push the upper support (2) to climb upward when the upper leg (5) contracts; The elastic pusher comprises a mounting seat arranged in the mounting tube (1) and an elastic member (10) arranged on the mounting seat, wherein one end of the elastic member (10) away from the mounting seat is connected to the upper support (2); Guide pulleys (9) are provided on the side walls of the upper support (2) and the lower support (3); one end of the first pull rope (7) is connected to the side wall of the upper support leg (5); the other end of the first pull rope (7) is guided by the upper guide pulley (9) and then passes through the installation cylinder (1) from above the installation cylinder (1); one end of the second pull rope (8) is connected to the side wall of the lower support leg (6); the other end of the second pull rope (8) is guided by the lower guide pulley (9) and the upper guide pulley (9) in sequence and then passes through the installation cylinder (1) from above the installation cylinder (1); the second pull rope (8) is pulled The rope (8) moves the installation tube (1) and the lower support (3) upward, compressing the elastic member (10) to store force until the installation tube (1) and the lower support (3) cannot move. The second pull rope (8) continues to be pulled, causing the lower support leg (6) to rotate and expand to contact the inner wall of the chute, thereby providing support for the explosive bracket. The first pull rope (7) is released, reducing the contact force between the upper support leg (5) and the chute, thereby releasing the support force provided by the upper support leg (5) to the explosive bracket. At this time, the compressed elastic member (10) expands, pushing the upper support (2) and moving the upper support leg (5) upward.

2. A secondary climbing explosive bracket for mine dredging according to claim 1, characterized in that: One end of the upper leg (5) away from the upper support (2) faces the lower support (3), and one end of the lower leg (6) away from the lower support (3) faces the upper support (2). The upper leg (5) and the lower leg (6) are arranged in an alternating manner.

3. A secondary climbing explosive bracket for mine dredging according to claim 1, characterized in that: The upper supporting leg (5) comprises a sleeve (51), a moving rod (52) slidably inserted into the sleeve (51), and a spring member (53) provided between the sleeve (51) and the moving rod (52); Wherein, the lower supporting leg (6) has the same structure as the upper supporting leg (5).

4. A secondary climbing explosive bracket for mine dredging according to claim 3, characterized in that: The end of the moving rod (52) away from the sleeve (51) is tapered.

5. A secondary climbing explosive bracket for dredging a mine chute according to claim 1, characterized in that: There are at least three upper supporting legs (5) and at least three lower supporting legs (6).

6. A secondary climbing explosive bracket for dredging a mine chute according to claim 1, characterized in that: The lower support (3) is provided with an elastic reset member to drive the rotated and unfolded lower support leg (6) to reset.