CN111845667B

CN111845667B - Inclined drift catcher

Info

Publication number: CN111845667B
Application number: CN201911421007.XA
Authority: CN
Inventors: 李明; 曹丽丽; 林钢; 尹乾; 张家智; 马严
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-04-16
Anticipated expiration: 2039-12-31
Also published as: CN111845667A

Abstract

The invention discloses an inclined roadway anti-sliding device, and belongs to the technical field of mine anti-sliding. The invention comprises a brake control assembly, a brake execution assembly and an insertion hook brake assembly. The brake control assembly comprises a power supply, a velometer and a program controller. The brake executing assembly comprises a motor, a transmission gear, a moving shaft and a limiting bracket; the insertion hook brake assembly comprises an insertion hook and an insertion hook support, and the hook head of the insertion hook faces downwards and is hung on the hanging section in a normal state. The invention is used for reducing the occurrence of field sports car accidents and provides an effective, convenient, timely and effective solution.

Description

Inclined drift catcher

Technical Field

The invention relates to a car-running prevention device, and belongs to the technical field of mining safety equipment.

Background

In the mining equipment, the safe operation of the mine car is related to the normal work of the whole mine transportation system, the sliding car is one of the common dangerous mine car accidents, and the sliding car means that the rope and pin chain of the mine car are broken or misoperation occurs during inclined roadway transportation, so that the overspeed operation of the mine car is caused, and great threats are caused to underground people, property and things. For example, an overspeed out-of-control vehicle may crash hardware facilities such as cables and wind and water pipelines laid in an inclined roadway to affect normal production operation of a mine, and impact electrical equipment to generate sparks may cause explosion to harm personal safety of underground workers.

Technical schemes for preventing a vehicle from running in the prior art are mainly divided into two types: the first is that the vehicle that stops the emergence sports car accident through setting up the car stopper on the transportation inclined drifts specifically is: when the vehicle normally passes through the inclined roadway, the vehicle stopper arranged on the inclined roadway is in a disconnected state so that the vehicle normally passes through; when the running occurs, the car stopper is controlled to be opened so as to block the car. However, as the occurrence time of the sports car is uncertain, the car stopper needs to be arranged at a plurality of positions of the inclined roadway at the same time, so that the problems of repeated disassembly, inconvenience in carrying and high cost are caused. The second is when detecting the sports car, brake through the arresting gear who installs on the mine car, and the braking control mode that exists at present mostly is hydraulic braking, but because the circumstances is complicated in the pit, and complicated braking control mode in addition for the validity of system is difficult to obtain the guarantee when taking place the sports car.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the inclined roadway anti-sliding device, and provides an effective solution which is convenient to operate and timely and effective for reducing the occurrence of field sliding accidents.

The invention is realized by the following technical scheme: a slide-down preventing device for inclined drift comprises a brake control component, a brake executing component and an inserting hook brake component.

The dynamic control assembly comprises a power supply for supplying power to the whole device, a velometer arranged on a shaft of a mine car wheel and used for monitoring the rotating speed of the mine car wheel and transmitting the monitored speed data to the program controller, and the program controller used for receiving the speed data transmitted by the velometer, judging according to a preset speed limit value and controlling the action of the brake execution assembly.

The brake executing assembly comprises a motor, a transmission gear, a moving shaft and a limiting bracket; the motor is connected with the power supply and is controlled by the program controller; the transmission gear is arranged on a power output shaft of the motor; the moving shaft is parallel to the axle of the mine car, the moving shaft is arranged at the lower part of the chassis of the mine car through the limiting bracket, the middle section of the moving shaft is provided with inclined thread sections meshed with the transmission gear, the limiting bracket is provided with two inclined thread sections which are symmetrically arranged along the inclined thread sections, and the limiting bracket is provided with a round hole for the moving shaft to slide through and restrict the moving shaft to move in the radial direction; a handle is arranged at one end of the movable shaft, and a hanging section is reserved at the other end of the movable shaft; at least, be close to the both sides of the spacing support of hanging section one end are provided with spacing dish, and the diameter of spacing dish is greater than the round hole diameter on the spacing support, and the spacing dish that is close to hanging section one end is spacing dish I, and it is S1 to establish the biggest axial displacement stroke that the transmission gear drove the oblique screw thread section can do, and spacing dish I is apart from its nearest spacing support' S interval stroke for S2, the length of hanging the section is L2, then S2 is greater than S1, and S1 is greater than L2.

The insertion hook braking assembly comprises an insertion hook and an insertion hook support, the insertion hook is hinged to the insertion hook support, the insertion hook support is fixed to the lower portion of a mine car chassis, and in a normal state, the hook head of the insertion hook faces downwards and is hung on the hanging section.

As an improvement, two sides of the two limiting brackets are symmetrically provided with limiting discs.

Furthermore, the length of the inclined thread section is set to be L1, the distance between the limiting discs on two sides of the limiting bracket close to one end of the hanging section is set to be L3, L3 is larger than twice L1, and L1 is larger than L2.

Further, the power supply, the program controller, the motor, the limiting bracket and the inserting hook support are all fixed below the mine car chassis through bolt assemblies.

As an improvement, the limiting support is composed of an upper block and a lower block, the round hole of the limiting support is formed by splicing the upper block and the lower block, the upper block and the lower block are connected together through bolts, and the lower block is fixed on a mine car chassis through a bolt assembly.

As an alternative scheme, the limiting plate is replaced by a rectangular plate, a triangular plate, an elliptical plate or a flange plate.

As an improvement, the tail part of the insertion hook is forked into two ends to form a Y shape, and the two ends of the tail part of the insertion hook are hinged with the respective insertion hook supports through pin shafts.

As an improvement, the power supply adopts a mining intrinsic safety type power supply.

The invention has the beneficial effects that: compared with the prior art, the invention has the advantages of simple structure, convenient operation and the like, and by applying the technical scheme of the invention, on one hand, the safety accidents caused by overspeed operation of the mine car due to rope breakage, pin chain breakage or misoperation of the mine car can be effectively solved; on the other hand, the speed extreme value of the mine car can be set according to the actual requirements on the site, the device has strong adaptability, and the device can be suitable for complex underground working environments.

Drawings

The invention is further illustrated below with reference to the figures and examples.

FIG. 1 is a structural bottom view of the inclined drift catcher of the present invention;

FIG. 2 is a front view of the brake actuating assembly and the insertion hook assembly of the present invention;

FIG. 3 is a bottom plan view of the brake actuating assembly of the present invention;

FIG. 4 is a right side elevational view of the brake actuating assembly of the present invention;

FIG. 5 is a front view of the spacing bracket of the present invention;

figure 6 is a top view of the spacing bracket of the present invention.

The following reference numerals are included in the figures:

1. a brake control component 11, a power supply 12 and a velometer 13 program controller;

2. the brake actuating assembly 21, the motor 22, the transmission gear 23, the moving shaft 231, the inclined thread section 232, the limiting disc I233, the limiting disc II 234, the limiting disc III 235, the limiting disc IV 236, the hanging section 237, the handle 24, the limiting bracket 241, the upper block 242 and the lower block;

3. the hook-inserting brake assembly 31, the hook 32, the pin shaft 33, the hook-inserting support 4 and the bolt;

l1, length of the diagonal thread segment; l2, length of hanging segment 236; l3, distance between the two side limiting discs of the limiting bracket close to one end of the hanging section; s1, driving the transmission gear 22 to drive the inclined thread section to make the maximum axial displacement stroke; s2, the distance between the limiting disc I and the limiting bracket closest to the limiting disc I is in a stroke.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.

An inclined drift catcher as shown in fig. 1 to 6 comprises a brake control assembly 1, a brake actuating assembly 2 and an insertion hook brake assembly 3.

The dynamic control assembly 1 comprises a power supply 11 for supplying power to the whole device, a speedometer 12 arranged on the wheel shaft of the mine car and used for monitoring the rotating speed of the wheels of the mine car and transmitting the monitored speed data to a program controller 13, and the program controller 13 used for receiving the speed data transmitted by the speedometer 12, judging according to a preset speed limit value and controlling the action of the brake execution assembly 2. The program controller 13 will make a judgment according to the preset speed limit value, and if the tramcar has a car running accident, the real-time speed transmitted from the velometer 12 exceeds the preset speed limit value, the program controller 13 will control the motor 21 to operate.

The brake executing assembly 2 comprises a motor 21, a transmission gear 22, a moving shaft 23 and a limiting bracket 24; the motor 21 is connected with the power supply 11, and the operation and stop of the motor 21 are controlled by the program controller 13. The transmission gear 22 is arranged on a power output shaft of the motor 21; the moving shaft 23 is parallel to the axle of the mine car, the moving shaft 23 is mounted at the lower part of the chassis of the mine car through the limiting bracket 24, the middle section of the moving shaft 23 is provided with an inclined thread section 231 meshed with the transmission gear 22, the limiting bracket 24 is provided with two inclined thread sections 231 which are symmetrically arranged along the inclined thread sections 231, and the limiting bracket 24 is provided with a round hole for the moving shaft 23 to pass through in a sliding manner and restrict the moving shaft 23 from moving in the radial direction; a handle 237 is arranged at one end of the moving shaft 23, and the handle 237 can facilitate the movement of the moving shaft through manual operation when the inserting hook is reset; the other end of the movable shaft 23 is provided with a hanging section 236; at least two sides of the limiting bracket 24 close to one end of the hanging section 236 are provided with limiting discs, the diameter of each limiting disc is larger than that of a round hole in the limiting bracket 24, the limiting disc close to one end of the hanging section 236 is a limiting disc I232, the maximum axial displacement stroke which can be performed by the inclined thread section 231 driven by the transmission gear 22 is S1, the distance stroke between the limiting disc I232 and the nearest limiting bracket 24 is S2, the length of the hanging section 236 is L2, S2 is larger than S1, and S1 is larger than L2.

As shown in fig. 1 and 2, the insertion hook brake assembly 3 includes an insertion hook 31 and an insertion hook support 33, the insertion hook 31 is hinged on the insertion hook support 33, the insertion hook support 33 is fixed on the lower portion of the chassis of the mine car, and the hook head of the insertion hook 31 faces downwards and is hung on the hanging section 236 under normal conditions. The hook head fixing direction of the inserting hook 31 is opposite to the traveling direction of the mine car.

Limiting discs can be symmetrically arranged on two sides of the two limiting brackets 24. As shown in fig. 3 and 4, the moving shaft 23 is provided with four limiting discs, the limiting discs iii 234, iv 235, i 232 and ii 233 are symmetrically arranged at two sides of the inclined thread section 231, the two limiting brackets 24 are respectively located between the limiting discs i 232, ii 233, iii 234 and iv 235, the diameters of the four limiting discs are larger than the diameters of the circular holes of the two limiting brackets, and the limiting discs and the limiting brackets are matched with each other to limit the moving distance of the moving shaft 23 in the axial direction.

As an embodiment, the length of the inclined thread section 231 is L1, the distance between the limiting discs at the two sides of the limiting bracket 24 near one end of the hanging section 236 is L3, L3 is greater than twice of L1, and L1 is greater than L2.

The power source 11, the programmed controller 13, the motor 21, the spacing bracket 24 and the hook block 33 are all secured to the underside of the mine car chassis by bolt assemblies.

In order to facilitate the installation and the disassembly of the moving shaft 23, the limiting bracket 24 may be composed of an upper block 241 and a lower block 242, the circular hole of the limiting bracket 24 is formed by splicing the upper block 241 and the lower block 242, the upper block 241 and the lower block 242 are connected together by bolts, and the lower block 242 is fixed on the mine car chassis by bolt assemblies.

The limiting disc can be replaced by a rectangular plate, a triangular plate, an elliptical plate, a flange plate and the like.

The tail of the insertion hook 31 is forked into two ends to form a Y shape, and the two ends of the tail of the insertion hook 31 are hinged with respective insertion hook supports 33 through pin shafts 32.

The power supply 11 is generally a mining intrinsic safety type power supply.

The working principle of the invention is that when the mine car runs normally and runs within the speed limit range, the inserting hook 33 is placed on the hanging section 236, and the whole device is in a non-working state; when a sports car accident happens, the speedometer 12 transmits the monitored speed data to the program controller 13, the program controller 13 controls the motor 21 to start, the motor 21 rotates to drive the transmission gear 22 to rotate, and the moving shaft 23 further moves along the axial direction through the meshed inclined thread section 231; after the moving shaft 23 moves for a certain distance, as L3 is more than 2L 1, or S2 is more than S1, the inclined thread section 231 can be separated from the transmission gear 22 before the limiting disc I232 meets the limiting bracket 24, and L1 is more than L2, the inserting hook 33 can fall off under the action of self weight, rotate around the pin shaft 32 and hook the sleeper to brake the mine car in the axial moving process of the moving shaft 23, and the moving shaft 23 stops moving axially when the limiting disc I232 meets the limiting bracket 24, so that the moving shaft can not be separated from the mine car; after the completion of one braking, the worker checks the braking device, and then manually lifts the insertion hook 31, pushes the moving shaft 23 to be reset by the grip 237, and places the insertion hook 31 on the hanging section 236 in preparation for the next braking.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a catcher in inclined drifts which characterized in that:

comprises a brake control component (1), a brake execution component (2) and an insertion hook brake component (3);

the brake control assembly (1) comprises a power supply (11) for supplying power to the whole device, a velometer (12) arranged on a wheel shaft of the mine car and used for monitoring the rotating speed of wheels of the mine car and transmitting the monitored speed data to a program controller (13), and the program controller (13) used for receiving the speed data transmitted by the velometer (12), judging according to a preset speed limit value and controlling the action of the brake execution assembly (2);

the brake execution assembly (2) comprises a motor (21), a transmission gear (22), a moving shaft (23) and a limiting bracket (24); the motor (21) is connected with the power supply (11) and is controlled by the program controller (13); the transmission gear (22) is arranged on a power output shaft of the motor (21); the moving shaft (23) is parallel to the axle of the mine car, the moving shaft (23) is installed at the lower part of a chassis of the mine car through the limiting bracket (24), the middle section of the moving shaft (23) is provided with an inclined thread section (231) meshed with the transmission gear (22), the limiting bracket (24) is provided with two inclined thread sections (231) which are symmetrically arranged, and a round hole for the moving shaft (23) to slide through and restrict the moving shaft (23) to move radially is formed in the limiting bracket (24); a handle (237) is arranged at one end of the moving shaft (23), and a hanging section (236) is arranged at the other end of the moving shaft (23); at least two sides of a limiting support (24) close to one end of the hanging section (236) are provided with limiting discs, the diameter of each limiting disc is larger than that of a round hole in the limiting support (24), the limiting disc close to one end of the hanging section (236) is a limiting disc I (232), the maximum axial displacement stroke which can be performed by the transmission gear (22) to drive the inclined thread section (231) is S1, the distance stroke between the limiting disc I (232) and the nearest limiting support (24) is S2, the length of the hanging section (236) is L2, S2 is larger than S1, and S1 is larger than L2;

the insertion hook brake assembly (3) comprises an insertion hook (31) and an insertion hook support (33), the insertion hook (31) is hinged to the insertion hook support (33), the insertion hook support (33) is fixed to the lower portion of a mine car chassis, and in a normal state, the hook head of the insertion hook (31) faces downwards and is hung on the hanging section (236).

2. The inclined roadway catcher as claimed in claim 1, wherein: and limiting discs are symmetrically arranged on two sides of the two limiting brackets (24).

3. The inclined roadway catcher as claimed in claim 1, wherein: the length of the inclined thread section (231) is set to be L1, the distance between the limiting discs on two sides of the limiting bracket (24) close to one end of the hanging section (236) is set to be L3, L3 is larger than twice L1, and L1 is larger than L2.

4. The inclined roadway catcher as claimed in claim 1, wherein: the power supply (11), the program controller (13), the motor (21), the limiting bracket (24) and the inserting hook support (33) are all fixed below the mine car chassis through bolt assemblies.

5. The inclined roadway catcher as claimed in claim 1, wherein: the limiting support (24) is composed of an upper block (241) and a lower block (242), the round hole of the limiting support (24) is formed by splicing the upper block (241) and the lower block (242), the upper block (241) and the lower block (242) are connected together through bolts, and the lower block (242) is fixed on a mine car chassis through a bolt assembly.

6. Inclined drift catcher as claimed in claim 1 or 2, characterized in that: the limiting disc is replaced by a rectangular plate, a triangular plate, an elliptical plate or a flange plate.

7. The inclined roadway catcher as claimed in claim 1, wherein: the tail of the insertion hook (31) is forked into two ends to form a Y shape, and the two ends of the tail of the insertion hook (31) are hinged with the respective insertion hook supports (33) through pin shafts (32).

8. The inclined roadway catcher as claimed in claim 1, wherein: the power supply (11) adopts a mining intrinsic safety type power supply.