CN218117746U

CN218117746U - Anti-falling device and blast hole drilling machine

Info

Publication number: CN218117746U
Application number: CN202222822097.7U
Authority: CN
Inventors: 封善飞; 蔡洪浩
Original assignee: Anbaituo Nanjing Construction Mining Equipment Co ltd
Current assignee: Anbaituo Nanjing Construction Mining Equipment Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2022-12-23
Anticipated expiration: 2032-10-24

Abstract

The utility model belongs to the technical field of the safety in production, especially, relate to an anti-falling device and blast hole rig. The device comprises a traction piece and a plurality of separation brackets for mounting the traction piece, wherein the separation brackets are inserted in the traction piece; the top end of the traction piece is connected with a buffer mechanism with a built-in elastic piece so as to provide resilience force for the traction piece which is stretched. The anti-falling device of the utility model is applied to the blast hole drilling machine, which can ensure that the operator can not be hurt by hard landing caused by self weight; in addition, the operator can be prevented from sliding from the top of the tower to the bottom of the tower after falling down to hurt the machine.

Description

Anti-falling device and blast hole drilling machine

Technical Field

The utility model belongs to the technical field of the safety in production, especially, relate to an anti-falling device and blast hole rig.

Background

Large blasthole rigs typically operate in large open pit mines. The whole machine of the large-scale blast hole drilling machine mainly comprises a tower frame and a frame, wherein the tower frame is located on the frame, and the total weight of the tower frame is at least more than 4 tons. It is obviously impractical to disassemble the tower for routine cleaning, inspection, maintenance and the like. Usually, only the relevant work can be done on the tower. The height from the lowest point of the tower to the ground is generally at least 2.5 meters when the tower is in a laid-down state, and the tower is not in a horizontal state when the tower is in the laid-down state, and the angle of inclination between the tower and the horizontal plane is still 6 degrees. Therefore, when the tower is maintained daily, the safety problem of the operator is very important.

CN 201621460419 discloses a 'climbing anti-falling device for a derrick vertical ladder of a drilling machine', which comprises guide ropes vertically connected to the upper end and the lower end of the derrick vertical ladder and a falling protector connected to the guide ropes; the lower end of the guide rope is connected to the straight ladder through a U-shaped ring and a turn buckle; the falling protector comprises a main shell, wherein the main shell is formed by riveting and assembling a shell cover plate and a pin shaft; a guide rope slideway is arranged in the main shell, a braking system consisting of a four-bar linkage is arranged in the main shell, and the braking system consists of a braking arm, a flat tooth locking block and a connecting bar; the brake arm is arranged on a central shaft of the main shell, a safety reset spring is arranged on one side of the brake arm, an opening reset spring is arranged on the other side of the brake arm, one end of the brake arm is connected with the flat tooth locking block, and a rotary lifting lug is arranged at the other end of the brake arm and used for connecting a safety belt; the upper end of the flat tooth locking block is hinged with one end of a connecting rod, and the other end of the connecting rod is arranged on a pin shaft of the main shell to form a linkage mechanism; a spring plunger is arranged on one side of the lower end of the main shell, and the spring plunger and the brake arm form an interlocking mechanism; a pulley support is installed at the upper end of the main shell, a support reset spring is installed on the pulley support and the connecting shaft of the main shell, an upper pulley is installed in the pulley support, and a lower pulley is installed on one side of the guide rope slide way at the lower end of the main shell. The anti-falling device in this patent compares with traditional climbing protector through adopting four-bar linkage structure, has the smooth and easy advantage of sliding.

The technical scheme still has the problem of incomplete protection of operators who have high-altitude falling accidents on the tower, for example, the operators are subjected to secondary damage caused by hard landing due to self weight when falling, or the operators who fall directly slide to the bottom of the tower from the top of the tower and collide with other metal parts on a machine.

Disclosure of Invention

1. Technical problem to be solved

The patent provides an anti-falling device and a blast hole drilling machine, which aim to provide more comprehensive protection for operators who have high-altitude falling accidents on a tower frame.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

the utility model discloses a falling-preventing device, which comprises a traction piece and a plurality of separation brackets for installing the traction piece, wherein the separation brackets are inserted on the traction piece; the top end of the traction piece is connected with a buffer mechanism with a built-in elastic piece so as to provide resilience force for the traction piece which is stretched.

Preferably, the buffer mechanism comprises a connecting piece, the bottom end of the connecting piece is connected with the traction piece, and the other end of the connecting piece is provided with supporting force by the elastic piece.

Preferably, the connecting piece is a metal connecting rod.

Preferably, the elastic member is a spring, and the spring is arranged along the circumferential direction of the metal connecting rod.

Preferably, the blocking supports are uniformly distributed along the axial direction of the traction piece.

Preferably, the spacing distance between adjacent barrier supports is 2-3m.

Preferably, the traction piece is a steel wire rope, and the blocking support is inserted into the steel wire rope.

On the other hand, the utility model provides a blast hole drilling machine, include the frame, be located pylon on the frame, be provided with on the pylon anti-falling device.

Preferably, the number of the anti-falling devices is one group, and one group of the anti-falling devices are respectively arranged at two sides of the tower.

Preferably, a through hole is formed in the top of the buffering mechanism in the anti-falling device and used for being connected with the tower.

3. Advantageous effects

Compared with the prior art, the utility model provides a technical scheme has following beneficial effect:

(1) In one aspect, because the fall arrest device employs a damping mechanism, flexible connections are formed between the components of the device. Operating personnel is any place with whole-body safety belt at wire rope, when operating personnel falls from rig pylon accident, because dead weight reason pulling wire rope, buffer gear work can be triggered in wire rope's pulling, and buffer gear provides the cushion effect rapidly, effectively reduces operating personnel's uncomfortable sense, reduces the secondary damage that causes because of the hard landing that the dead weight produced.

(2) On the other hand, when an operator falls from the top end of the tower of the drilling machine, the blocking supports are arranged at intervals of 2-3 meters from top to bottom along the steel wire rope, so that the situation that the operator directly slides to the bottom of the tower from the top of the tower along the steel wire rope and violently collides with other metal parts on a machine is avoided due to the blocking supports, and the proportion of accidental falling and serious damage on the tower is greatly reduced.

Drawings

FIG. 1 is a schematic view of a blasthole drilling rig equipped with a fall arrest device;

FIG. 2 is a schematic view of a barrier scaffold structure;

FIG. 3 is a schematic view of the anti-falling device;

fig. 4 is a sectional view of the damper mechanism.

The reference numerals in the figures illustrate:

110. a traction member; 111. a wire rope; 120. blocking the bracket; 130. a buffer mechanism; 131. a spring; 132. a metal connecting rod; 140. a tower.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, proportion, size and so on shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification for the understanding and reading of the people skilled in the art, and are not used to limit the limit conditions of the present invention, so that the present invention does not have the essential significance in the technology, and any structure modification, proportion relation change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable by the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are used for clarity of description only, and are not used to limit the implementable scope, and the changes or adjustments of the relative relationship thereof are also regarded as the implementable scope of the present invention without substantial changes in the technical contents.

A large-scale blast hole drilling machine, in particular to a surface equipment which is provided with a higher tower frame, generally operates in large-scale surface mine and belongs to the field of mining machinery. The total weight of the tower is at least more than 4 tons. The height from the lowest point of the tower to the ground is generally at least 2.5 meters when the tower is in a laid-down state. In addition, when the tower is in a laid-down state, the tower is not in a horizontal state, and an inclination angle of about 6 degrees is still formed between the tower and the horizontal plane. Therefore, the routine cleaning, inspection, maintenance, etc. of the tower is usually handled by an operator directly boarding the tower.

In order to provide effective safety for the operator on the tower, as shown in fig. 1, the blast hole drilling machine in the embodiment mainly includes a tower 140 and a carriage (not shown in the figure), the tower 140 is located on the carriage, and the tower 140 is provided with a fall-preventing device. Preferably, the devices are arranged in groups, one set being mounted on each side of the tower 140. Through the arrangement, when the operators maintain the two sides of the tower 140, the two sides of the tower can be comprehensively protected.

As shown in fig. 3, the anti-falling device includes a traction member 110 and a plurality of blocking brackets 120 for mounting the traction member 110, the blocking brackets 120 are uniformly distributed along the axial direction of the traction member 110, and the traction member 110 is connected with a tower 140 through the blocking brackets 120. A cushioning mechanism 130 with an internal elastic member is attached to the top end of the traction member 110 to provide a resilient force to the traction member 110 when it is stretched. The top of the buffer mechanism 130 is opened with a through hole for fixing the buffer mechanism 130 to the tower 140.

Specifically, as shown in fig. 4, the buffer mechanism 130 includes a connecting member, which is preferably a metal connecting rod 132 in this embodiment, a bottom end of the metal connecting rod 132 is connected to the pulling member 110, and the other end of the metal connecting rod 132 is provided with a supporting force by an elastic member. In this embodiment, the elastic member is a spring 131, and the springs 131 are uniformly distributed around the metal connecting rod 132. Of course, the elastic member may take other forms capable of providing the metal connecting rod 132 with the resilient pulling force.

In this embodiment, as shown in fig. 2, the towing member 110 is a steel cable 111, and the blocking bracket 120 is inserted into the steel cable 111. The spring 131 is indirectly connected to the wire rope 111 through a metal connecting rod 132. When the steel wire 111 is stretched by gravity, the tensile force is transmitted to the spring 131, and the spring 131 reversely pulls the steel wire 111 to generate the rebound effect through the self-tension. That is, because the fall arrest device employs the damping mechanism 130, a flexible connection is formed between the components of the device. The operator ties whole-body safety belt at arbitrary department on pulling piece 110, when the operator falls from rig pylon 140 accident, because dead weight reason pulling pulls piece 110, the pulling of pulling piece 110 can trigger buffer gear 130 work, and buffer gear 130 provides the cushion effect for operator rapidly, effectively reduces the uncomfortable sense of operator, reduces the secondary injury that the hard landing that produces because of the dead weight caused to operator.

Further, the spacing distance between adjacent barrier supports 120 is set to 2-3m. Because the total length of the steel cable 111 is approximately 10 meters, two functions can be achieved by installing one blocking bracket 120 every 2-3 meters from top to bottom on the steel cable 111.

Firstly, support wire rope 111, prevent that longer wire rope 111 centre from not having the support, the mid portion is because of self gravity leads to flagging. Secondly, the blocking function is that, as described above, when the tower 140 is laid down for maintenance, the actual tower 140 has an angle of 6 ° with the horizontal plane, that is, the steel cable 111 has an inclination angle of 6 ° with the horizontal plane. If the operator falls carelessly, the operator may slide down from the top end of the steel wire 111, or even slide to the bottom of the tower 140, and may collide with other metal parts on the tower 140. After the separation bracket 120 is installed, even if an operator accidentally falls off, the operator can only slide in an interval area of 2-3 meters along with the sliding of the top end of the steel wire rope 111 to the lower part, and the risk of serious secondary impact is greatly reduced.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A fall arrest device, characterized by: the device comprises a traction piece (110) and a plurality of blocking brackets (120) used for mounting the traction piece (110), wherein the blocking brackets (120) are inserted on the traction piece (110); the top end of the traction piece (110) is connected with a buffer mechanism (130) with an internal elastic piece so as to provide resilience force for the traction piece (110) which is stretched.

2. A fall arrest device according to claim 1, wherein: the buffer mechanism (130) comprises a connecting piece, the bottom end of the connecting piece is connected with the traction piece (110), and the other end of the connecting piece is provided with supporting force by the elastic piece.

3. A fall arrest device according to claim 2, wherein: the connecting piece is a metal connecting rod (132).

4. A fall arrest device according to claim 3, wherein: the elastic piece is a spring (131), and the spring (131) is arranged along the circumferential direction of the metal connecting rod (132).

5. A fall arrest device according to claim 1, wherein: the blocking supports (120) are uniformly distributed along the axial direction of the traction piece (110).

6. A fall arrest device according to claim 1, wherein: the spacing distance between adjacent blocking brackets (120) is 2-3m.

7. A fall arrest device according to any one of claims 1 to 6, wherein: the traction piece (110) is a steel wire rope (111), and the blocking support (120) is inserted in the steel wire rope (111).

8. A blast hole drilling machine characterized by: comprises a frame, a tower (140) positioned on the frame, wherein the tower (140) is provided with a fall-preventing device, and the fall-preventing device is the fall-preventing device as claimed in any one of claims 1 to 7.

9. A blast hole drill according to claim 8, wherein: the number of the anti-falling devices is one group, and the anti-falling devices in one group are respectively arranged on two sides of the tower (140).

10. A blast hole drill according to claim 8, wherein: the top of a buffer mechanism (130) in the anti-falling device is provided with a through hole for connecting with the tower (140).