CN211391290U

CN211391290U - Mine car capable of self-braking during overspeed of inclined shaft roadway crossing and matching device

Info

Publication number: CN211391290U
Application number: CN201921223431.9U
Authority: CN
Inventors: 胡建明; 栾兆群; 吕保平; 王海永
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-09-01
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a mine car and a matching device which can automatically brake when the cars are crossed in an inclined shaft and the cars are overspeed, comprising a mine car body consisting of a carriage, a chassis, front and rear axles and four wheels, and is characterized in that one of the front and rear axles can rotate relative to the chassis, and at least one of the two wheels on the axle rotates together with the car along with the axle; a centrifugal wheel mechanism is fixed at the middle position of the axle; the centrifugal wheel mechanism is characterized in that a semi-circle groove is formed in the periphery of a centrifugal wheel, and a centrifugal hook is hinged in the groove; the hook head of the centrifugal hook is hooked on the safety pin, and when the tramcar runs over speed, the tramcar is broken by the centrifugal hook under the action of a certain centrifugal force, so that the centrifugal hook is thrown out of the groove; the steel bar sleeve is hooked on the bottom plate of the track, so that the mine car stops running.

Description

Mine car capable of self-braking during overspeed of inclined shaft roadway crossing and matching device

Technical Field

The utility model relates to a mine car of colliery inclined shaft lane transportation belongs to coal mine machinery and equips technical field.

Background

The inclined shaft roadway is a general name of an inclined shaft which leads the mine ground to the underground and a transportation roadway which goes up and down the hill in an underground mining area. The mine car rail transportation is a transportation mode widely adopted by mine inclined shaft roadways such as coal mines and the like, and the transportation mode is that a winch arranged above an inclined shaft pulls a mine car group (a train) to transport. The existing general mine car mainly comprises a carriage, a chassis, a front axle, a rear axle and four wheels, wherein the axles are fixed on the chassis, the wheels are arranged on the axles through bearings, and the wheels rotate on the axles during walking. If the phenomena of rope breaking, chain breaking or pin breaking and the like occur during the running of the mine car, the problem of running of the mine car or the mine car set can be caused, so that casualty accidents in safety production can occur.

In order to solve the problems, the coal mine safety regulations stipulate that a catcher is installed in an inclined shaft roadway. The conventional anti-running device is usually provided with various devices such as a car stopping net and the like in a mine, and once a stall condition is found, the car stopping net is placed under a blocking mine car through a sensing device. The passive anti-sliding device has the following defects: the intercepting device has larger weight, is inconvenient to install, carry and maintain on site and is difficult to popularize and use; the intercepting device can be used only once, and needs to be newly installed, thereby wasting materials, destroying the continuity of mine production, and consuming time and labor for handling accidents; once the induction device fails and fails in the use process, the intercepting device loses the function.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a but pure mechanical structure's inclined shaft lane cluster car self-actuating's mine car and supporting when speeding can be initiatively brakied when causing the sports car accident because of disconnected rope, unhook etc..

In order to achieve the purpose, the technical scheme of the utility model is that the mine car capable of self-braking during the overspeed of the inclined shaft roadway crossing and the matching device thereof comprises a mine car body consisting of a carriage, a chassis, a front axle and a rear axle and four wheels, and is characterized in that one of the front axle and the rear axle is hinged on the chassis through a bearing and can rotate relative to the chassis, at least one of the two wheels on the axle is fixedly connected with the axle, and the car can rotate along with the axle, and the other one is hinged with the axle through a bearing and can rotate around the axle; a centrifugal wheel mechanism is fixed at the middle position of the axle; the centrifugal wheel mechanism is characterized in that a semi-circle groove is formed in the periphery of a centrifugal wheel, and a centrifugal hook is hinged in the groove; the centrifugal hook is formed by hinging a hook head and a hook body, the appearance of the hook body is consistent with that of the groove after the hinging, the tail part of the hook body is hinged at the rear end of the groove by a pin shaft, and the hook head is hooked on a safety pin at the front end of the groove so as to hide the centrifugal hook in the groove; the breaking strength of the safety pin is ensured under the following conditions: when the mine car runs at normal speed, the mine car is guaranteed not to be broken by the centrifugal force of the hook head, so that the centrifugal hook is not thrown out, and when the mine car runs at overspeed, the mine car is guaranteed to be broken by the centrifugal hook under the action of a certain centrifugal force, so that the centrifugal hook is thrown out of the groove;

the application also comprises a matching device; the matched device is a steel bar sleeve which is firmly buried on a bottom plate between two tracks of the inclined shaft roadway; the steel bar sleeves are arranged at intervals of 2-4 meters; when thrown out, the centrifugal hook hooks on the reinforcing steel bar sleeve to stop the mine car.

The working principle and the positive effects of the self-braking parking device are that a pure mechanical structure is adopted, once the rope of a winch traction steel wire rope is broken or the winch is unhooked to cause car running, the centrifugal hook is thrown out and hooked on the steel bar sleeve under the action of centrifugal force, the self-braking parking is realized, and the problems of failure and invalidation of an induction device like a passive intercepting device can be avoided; adopt self-braking, need not install in addition intercepting device, avoided the inconvenient problem of installation transport and maintenance to and disposable destruction, extravagant material problem, it is new not need to install again, as long as with the centrifugal hook reconversion of centrifugal wheel, change the safety catch of new.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a side view of the centrifugal wheel mechanism of FIG. 1;

FIG. 3 is a diagram of the running state of the inclined shaft roadway crossing, which shows the arrangement of the reinforcing steel bar sleeves;

fig. 4 is a perspective view illustrating a reinforcing bar cover installation situation.

In the figure: 1. a carriage; 2. a chassis; 3. a rear axle; 4. a left wheel; 5. a left bearing; 6. a pin shaft 7, a centrifugal wheel 8, a hook body 9 and a pin; 10. a right bearing; 11. a right wheel; 12. A wheel bearing; 13. a hook head; 14. A shear pin; 15. a reinforcing steel bar sleeve; 16. A track.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in FIG. 1, the inclined shaft roadway tandem transport overspeed self-braking mine car and the matching parts thereof comprise a mine car body consisting of a carriage 1, a chassis 2, a front axle and a rear axle (the rear axle 3 is shown in the figure) and four wheels (a left wheel 4 and a right wheel 11 of the axle 3 are shown in the figure); the axle 3 is hinged on the chassis 2 through a left bearing 5 and a right bearing 10, so that the rear axle 3 and the chassis 2 rotate relatively, a left wheel 4 of two wheels on the rear axle 3 is fixedly connected with the rear axle 3 and can rotate along with the axle 3, and a right wheel 11 is hinged with the rear axle 3 through a wheel bearing 12 and can rotate around a shaft; a centrifugal wheel mechanism is fixed at the middle position of the rear axle 3 through a pin 9; the structure of the centrifugal wheel mechanism is as shown in fig. 2, a semi-circle groove is arranged on the wheel periphery of the centrifugal wheel 7, and a centrifugal hook is hinged in the groove; the centrifugal hook is formed by hinging a hook head 13 and a hook body 8, the appearance of the hinged hook is consistent with that of the groove, the tail part of the hook body 8 is hinged at one end of the groove by a pin shaft 6, and the hook head 13 is hooked on a safety pin 14 to hide the centrifugal hook in the groove; the breaking strength of the shear pin 14 is such as to ensure the following conditions: the hook head 13 can be hooked and not pulled off when the mine car normally runs, so that the centrifugal hook is prevented from being thrown off, and when the mine car runs over speed, the centrifugal hook is prevented from being pulled off under the action of a certain centrifugal force, so that the centrifugal hook is thrown off the groove.

As shown in fig. 3 and 4, the present application further includes a kit; the matching device is a steel bar sleeve 15 which is firmly buried on a bottom plate between two tracks 16 of the inclined shaft roadway; the reinforcing steel bar sleeves 15 are arranged at intervals of 2-4 meters; when the centrifugal hook is thrown out, the hook head 13 is hooked on the reinforcing steel bar sleeve 15, so that the mine car stops running.

Claims

1. A mine car and supporting device that can be braked automatically when the inclined shaft roadway is crossed the car and overspeed, including the mine car body made up of carriage, chassis, front and back axletree and four wheels, characterized by that, one of said front and back axletree can rotate with the chassis relatively, two wheels on the axle of this rotation are at least fixedly connected with axletree, can rotate with this axletree together; a centrifugal wheel mechanism is fixed at the middle position of the rotating axle; the centrifugal wheel mechanism is characterized in that a semi-circle groove is formed in the periphery of a centrifugal wheel, and a centrifugal hook is hinged in the groove; the centrifugal hook is formed by hinging a hook head and a hook body, the tail part of the hook body is hinged at the rear end of the groove by a pin shaft, and the hook head is hooked on a safety pin at the front end of the groove; the breaking strength of the safety pin is ensured under the following conditions: when the mine car runs at normal speed, the mine car is guaranteed not to be broken by the centrifugal force of the hook head, and when the mine car runs at overspeed, the mine car is guaranteed to be broken by the centrifugal hook under the action of a certain centrifugal force, so that the centrifugal hook is thrown out of the groove;

also comprises a matching device; the matched device is a steel bar sleeve which is firmly buried on a bottom plate between two tracks of the inclined shaft roadway; the steel bar sleeves are arranged at intervals of 2-4 meters; when thrown out, the centrifugal hook hooks on the reinforcing steel bar sleeve to stop the mine car.

2. A self-braking mine car and associated equipment as claimed in claim 1 wherein the axle, which is rotatable relative to the chassis, is pivotally mounted to the chassis by means of bearings.