CN203531615U

CN203531615U - Transmission device of coal mine escape door

Info

Publication number: CN203531615U
Application number: CN201320560120.8U
Authority: CN
Inventors: 鲁加祥
Original assignee: YANCHENG RUIHENG ELECTRIC POWER PETRIFICATION EQUIPMENT MANUFACTURE CO Ltd
Current assignee: YANCHENG RUIHENG ELECTRIC POWER PETRIFICATION EQUIPMENT MANUFACTURE CO Ltd
Priority date: 2013-09-10
Filing date: 2013-09-10
Publication date: 2014-04-09
Anticipated expiration: 2023-09-10

Abstract

The utility model relates to a transmission device of a coal mine escape door. The transmission device of the coal mine escape door is characterized in that the longitudinal middles of door plates of a butterfly door are fixed to a driving shaft and a driven shaft respectively, and the upper ends of the shafts are respectively assembled with a gear; the upper end of the driving shaft is connected with a speed reducer and a motor after being assembled with the gear; a guide support fixed to one lateral surface of each gear is provided with a guide groove, the rear portions of guide rods are movably matched with the insides of the multiple guide grooves, a plurality of racks corresponding to the multiple gears are arranged on the front lateral surfaces of the guide rods in a matched mode, and each rack is meshed with the corresponding gear; a gas concentration sensor is assembled inside the door and connected with an electric appliance control system. Due to the adoption of transmission of the gears and the racks, transmission power is large, the speed is stable, and transmission accuracy is high; installation space is mall; as the transmission device of the coal mine escape door is assembled with the gas concentration sensor, when the concentration of gas inside a passage is high, the escape door can be opened automatically and rapidly. Therefore, the transmission device of the coal mine escape door has the advantages of being high in pressure relief speed, accurate in opening and closing, capable of being used repeatedly and free of replacement.

Description

The transmission device of escape for mine

Technical field

The utility model relates to ventilation handover security device in a kind of mine ventilation system, the transmission device of escape for a kind of mine on especially a kind of mine pipeline system automatic switchover safety exit equipment.

Background technology

Currently available technology escape are generally to utilize common baffle plate principle of start-stop, in extensive use pipe-line system, but wherein there is many open defects: if the transmission mechanism of escape is connecting rod swinging type structure design, this structure exist switch inaccurate, to take installing space large, waste material, the defect that can not accurately open when channel inner pressure changes; When mine disaster occurs, subsurface environment very severe, may, with gas leakage or blast, may have a large amount of dust in air; When blasting, if transmission mechanism can not start unlatching escape immediately, escape are not opened, and directly affect hedging personnel's escape and rescue.

Utility model content

The purpose of this utility model is to provide a kind of above-mentioned prior art shortcoming that overcomes, have that switch speed is fast, transmission accuracy is high, it is little to take installing space, when gas density reaches setting value, can automatically open the transmission device of escape for a kind of mine of escape;

For achieving the above object, the technical scheme that the utility model adopts is: this kind of mine transmission device of escape, comprises the door frame by side frame, center post, frame inner support form outside upper housing, lower housing, left and right; Two of the outer side frame in left and right, center post, frame inner support is connected with upper housing, lower housing respectively; Center post is located at the middle part of the outer side frame in left and right, in the left and right sides of center post, is furnished with respectively several butterfly doors; Frame inner support is located between two adjacent butterfly reveal faces; In the left and right sides of each butterfly door end face and upper and lower end face, between associated framework, be respectively equipped with sealing device; Butterfly door longitudinal middle part is fixed on driving shaft or power transmission shaft; It is characterized in that: in the bottom of upper housing inner face, the top of lower housing inner face, be provided with accordingly bearing support with two of driving shaft, several power transmission shafts, the following of driving shaft or several power transmission shafts, fit over respectively in the dead eye of the set bearing support of lower housing inner face, the top of driving shaft, power transmission shaft, be assigned in the dead eye of the set bearing support in housing inner face bottom, and stretch out outside its dead eye, on driving shaft, power transmission shaft external part, be furnished with respectively driving gear, driven gear; After the top of driving shaft and driving gear match, its external part is connected with the power output shaft of reductor, and the power input shaft of reductor is connected with the power output shaft of motor, and reductor, motor are fixed on support; Bottom in driving gear and the leading flank of each driven gear or the upper housing of trailing flank, be fixed with respectively guiding trestle, top at each guiding trestle is respectively equipped with gathering sill, moving being engaged in several gathering sills in rear portion of guide rod, on the leading flank of guide rod, and be furnished with accordingly several tooth bars with driving gear and each driven gear, several tooth bars are meshed with driving gear and each driven gear respectively; At the door inner top that is positioned at mine one side, be furnished with gas concentration sensor, gas concentration sensor is connected with the PLC control system of this device;

The transmission device of escape for described a kind of mine, is characterized in that: in several gathering sills, be furnished with the directive wheel that can rotate by bearing pin, the rear portion of guide rod fits in gathering sill, and its trailing flank contacts with several directive wheels respectively;

The transmission device of escape for described a kind of mine, is characterized in that: the length of tooth bar is greater than the quadrant girth of driving gear or driven gear.

The utility model beneficial effect compared with prior art:

Because this transmission device has adopted gear and rack-driving, transfer motion power is large, velocity-stabilization, and transmission accuracy is high; Installing space is little; Because adopting, this device in doorframe, increased flue gas and gas concentration sensor simultaneously, when passage the inside flue gas, gas density reach a certain amount of, gas concentration sensor transfers signals to above actuator by electrical apparatus control system, and actuator is opened door fast; Therefore, the utlity model has the Hao ﹑ of pressure release Su Du Kuai ﹑ sealing performance and open and close accurately, can reuse, without replacing.

Accompanying drawing explanation:

Fig. 1 is front view of the present utility model;

Fig. 2 is that D-D in Fig. 1 is to sectional view;

Fig. 3 is that B-B in Fig. 1 is to view;

Fig. 4 is the M-M sectional drawing in Fig. 1;

In figure:

1. go up housing, 2. support, 3. reductor, 4. motor, 5. driving shaft, 6. driving gear, 7. tooth bar, 8. driven gear, 9. gathering sill, 10. bearing pin, 11. guide rods, 12. power transmission shafts, 15. outer side frames, 16. gas concentration sensors, 17. bearing supports, 18. times housings, 20. directive wheels, 22. guiding trestles, 23. butterfly doors, 24. door-plate end plates, 25. center posts, 26. frame inner supports.

The specific embodiment:

In order to further illustrate above-mentioned purpose of the present utility model, technical scheme and effect, by the following examples by reference to the accompanying drawings and relevant known technological know-how the utility model is described:

As Figure 1-4, this kind of mine transmission device of escape, comprises the door frame by side frame 15, center post 25, frame inner support 26 form outside upper housing 1, lower housing 18, left and right; Two of the outer side frame 15 in left and right, center post 25, frame inner support 26 is connected with upper housing 1, lower housing 18 respectively; Center post 25 is located at the middle part of the outer side frame 15 in left and right, in the left and right sides of center post 25, is furnished with respectively 2 butterfly doors 23, is respectively equipped with frame inner support 26 between 2 butterfly doors 23; In the left and right sides of each butterfly door 23 end face and upper and lower end face, between associated framework, be respectively equipped with sealing device; Butterfly door 23 consists of two door-plates, the longitudinal middle part of each two door-plate is located at respectively the two sides of driving shaft 5 or power transmission shaft 12 circumference, and fix and be integrated with it by bolt, make driving shaft 5 or power transmission shaft 12 form the central axis of butterfly door 23, two door-plates are integrated to both lateral sides end is overlapping, and its cross section is prismatic as butterfly-like, in the both sides of door-plate, is respectively equipped with a horizontal sides, in the horizontal sides of its left and right sides, be fixed with respectively sealing device; Two of butterfly door 23 is separately fixed in the one side of door-plate end plates 24, and plate end plates 24 another sides are for fixing seal device; The central axis driving shaft 5 of butterfly door 23 or power transmission shaft 12 fit over respectively in the centre bore of plate end plates 24;

In the bottom of upper housing 1 inner face, the top of lower housing 18 inner faces, be provided with accordingly bearing support 17 with two of driving shaft 5, several power transmission shaft 12, the following of driving shaft 5 or several power transmission shaft 12, fit over respectively in the dead eye of the set bearing support 17 in lower housing 18 inner face tops, the top of driving shaft 5, power transmission shaft 12, be assigned in the dead eye of the set bearing support 17 in the bottom of housing 1 inner face, and stretch out outside its dead eye, on driving shaft 5, power transmission shaft 12 external parts, be furnished with respectively driving gear 6, driven gear 8; After the top of driving shaft 5 and driving gear 6 match, its external part is connected with the power output shaft of reductor 3, the power input shaft of reductor 3 is connected with the power output shaft of motor 4, reductor 3, motor 4 are fixed on support 2, the following of support 2, is fixed on the both sides of housing driving shaft 5 that join 1 inner face bottom, the top of support 2, stretch out outside housing 1 top, reductor 3, motor 4 are fixed on the top of housing 1 top support arm 2; Bottom in the upper housing 1 of the trailing flank of driving gear 6 and each driven gear 8, is fixed with respectively guiding trestle 22, on the top of each guiding trestle 22, is respectively equipped with gathering sill 9; In several gathering sills 9, by bearing pin 10, be furnished with the directive wheel 20 that can rotate, the rear portion of guide rod 11 fits in gathering sill 9, and its trailing flank contacts with several directive wheels 20 respectively, make the rear portion of guide rod 11 fit over several gathering sills 9 interior when mobile, reduced further moving resistance; On the leading flank of guide rod 11, and be furnished with accordingly several tooth bars 7 with driving gear 6 and each driven gear 8, the length of tooth bar 7 is greater than the quadrant girth of driving gear 6 or driven gear 8; Several tooth bars 7 respectively with driving gear 6 and each driven gear 8 corresponding being meshed one by one; What be positioned at mine one side, at doorframe inner top, be furnished with gas concentration sensor 16, gas concentration sensor 16 is connected with the PLC control system of this device;

The course of work and operating principle:

The motor 4 of this device has adopted servomotor, under normal operation state, this device is in closed condition, when passage the inside flue gas, gas density reach the concentration of setting, gas concentration sensor 16 makes servomotor 4 work by signal by PLC control system, PLC control system described here is to commonly use at present prior art, and no further details to be given herein; After rotating, motor 4 make reductor 3 drive driving shaft 5 to rotate, the driving gear 6 fitting on driving shaft 5 rotates, the tooth bar 7 that is meshed with it that driving is fixed on guide rod 11 moves, several tooth bars 7 are moved simultaneously, the movement of tooth bar 7 makes several driven gears 8 rotate with driving gear 6 simultaneously, thereby drive the butterfly door 23 being separately fixed on driving shaft 5 and several power transmission shaft 12 to rotate simultaneously, door is opened automatically; After dangerous situation is got rid of, electrical apparatus control system makes motor 4 reversions, and all butterfly doors 23 are closed automatically, returns to normal.

Claims

1. a transmission device for escape for mine, comprises the door frame by side frame (15), center post (25), frame inner support (26) form outside upper housing (1), lower housing (18), left and right, two of left and right outer side frame (15), center post (25), frame inner support (26) is connected with upper housing (1), lower housing (18) respectively, center post (25) is located at the middle part of the outer side frame in left and right (15), and the left and right sides in center post (25), is furnished with respectively several butterfly doors (23), frame inner support (26) is located between adjacent two butterfly doors (23) side, left and right sides end face and upper and lower end face at each butterfly door (23), be respectively equipped with sealing device between associated framework, butterfly door (23) longitudinal middle part is fixed on driving shaft (5) or power transmission shaft (12), it is characterized in that: in the bottom of upper housing (1) inner face, the top of lower housing (18) inner face, with driving shaft (5), two of several power transmission shafts (12) is provided with bearing support (17) accordingly, the following of driving shaft (5) or several power transmission shaft (12), fit over respectively in the dead eye of the set bearing support (17) of lower housing (18) inner face, driving shaft (5), the top of power transmission shaft (12), be assigned in the dead eye of the set bearing support (17) in housing (1) inner face bottom, and stretch out outside its dead eye, in driving shaft (5), on power transmission shaft (12) external part, is furnished with respectively driving gear (6), driven gear (8), after the top of driving shaft (5) and driving gear (6) match, its external part is connected with the power output shaft of reductor (3), the power input shaft of reductor (3) is connected with the power output shaft of motor (4), and reductor (3), motor (4) are fixed on support (2), bottom in the leading flank of driving gear (6) and each driven gear (8) or the upper housing (1) of trailing flank, be fixed with respectively guiding trestle (22), on the top of each guiding trestle (22), be respectively equipped with gathering sill (9), moving being engaged in several gathering sills (9) in rear portion of guide rod (11), on the leading flank of guide rod (11), and be furnished with accordingly several tooth bars (7) with driving gear (6) and each driven gear (8), several tooth bars (7) are meshed with driving gear (6) and each driven gear (8) respectively, at the door inner top that is positioned at mine one side, be furnished with gas concentration sensor (16), gas concentration sensor (16) is connected with the PLC control system of this device.

2. the transmission device of escape for a kind of mine according to claim 1, it is characterized in that: in several gathering sills (9), by bearing pin (10), is furnished with the directive wheel (20) that can rotate, the rear portion of guide rod (11) fits in gathering sill (9), and its trailing flank contacts with several directive wheels (20) respectively.

3. the transmission device of escape for a kind of mine according to claim 1, is characterized in that: the length of tooth bar (7) is greater than the quadrant girth of driving gear (6) or driven gear (8).