CN206217913U - Two-way tape braking rail safety pincer type brakes mine car - Google Patents

Abstract

The utility model discloses a kind of two-way tape braking rail safety pincer type braking mine car, two sets of braking catchers are symmetrically mounted in the frame of mine car fore-and-aft direction；Braking catcher includes sport car information collecting device, transmission device and safety tongs brake apparatus；Sport car information collecting device includes pull bar and arm-tie；Transmission device includes vertical rod and back-moving spring mechanism；Safety tongs brake apparatus includes safety tongs support, the dynamic voussoir of mutual wedge surface cooperation and determines voussoir；It is two groups to move voussoir and determine voussoir to be integrally symmetrical set relative to braking rail, dynamic voussoir is that pre-small post-large wedge structure is arranged on the inner side for determining voussoir, the lateral surface of the right-angle side correspondence braking rail of dynamic voussoir sets and the right-angle side of dynamic voussoir is provided with wear-resistant slide block, and dynamic voussoir is coordinated by guiding mechanism with voussoir wedge surface is determined；The right-angle side for determining voussoir is arranged on safety tongs support.Intrinsic safety wholly clamping brakes mine car simple structure, during derailing accident can mechanical braking rapidly, install, dismantle, easy to maintenance.

Description

Two-way tape braking rail safety pincer type brakes mine car

Technical field

The utility model is related to a kind of mine car with braking function, specifically a kind of suitable for the double of coal mine inclined shaft transport Mine car is braked to band brake rail safety pincer type, belongs to coal mine machinery equipment technology field.

Background technology

The transport of slope vehicle braking rail is a kind of widely used means of transportation in the mines such as colliery, and its types of transportation is to pass through Winch traction mine car group above inclined shaft is transported, if occurring the phenomenons such as disconnected rope, chain rupture or disconnected pin when mine car runs The problem of mine car or mine car group row sport car will be triggered, cause safety in production casualty accident to occur.

Conventional catcher has following two forms at present, and one kind is to detect mine car by sensor in mine The speed of service, once finding that stall condition stops mine car using keep off a car net or arrester, this mode is disadvantageous in that： Blocking apparatus weight is larger, and in-site installation is carried and inconvenient maintenance, it is difficult to which popularization is used；Blocking apparatus can only single use, Both waste of materials, destroyed the continuity of shaft production again, and process accident is time-consuming and laborious.

Another kind is that electron detection device is installed on mine car, mine car is braked using pawl, the defect of this mode It is：Equipment debugging, maintenance program complexity etc. are numerous and diverse, and the electronic product antidusting used in equipment, corrosion resistance are poor, through length Time is unstable using rear electronic product performance, sometimes can also be in crucial moment failure, failure or misoperation；What is more, and one Individual inclined shaft wants multistage to intercept and can be only achieved comparatively ideal effect, this not only increases mine cost, but also does not reach 100% and block Cut effect.

The content of the invention

Regarding to the issue above, a kind of two-way tape braking rail safety pincer type braking mine car of the utility model offer, simple structure, Low cost, can be when any position beyond removing knick point in inclined gallery be because of derailing accident caused by disconnected rope, unhook etc. before mine car The equal active brake in rear, and be easily installed with maintenance, be particularly well-suited to coal mine inclined shaft hauling operation.

To achieve the above object, this two-way tape braking rail safety pincer type braking mine car includes two sets of braking catchers, Two sets braking catchers be symmetrically mounted in the frame of mine car fore-and-aft direction, braking rail parallel to tramroad set and It is fixedly mounted between two pieces tramroad；

Described braking catcher includes sport car information collecting device, transmission device and safety tongs brake apparatus；

Described sport car information collecting device includes pull bar and arm-tie；Pull bar fore-and-aft direction is horizontal through the guiding in frame Hole, the front end of pull bar is connected with round-link chain, and the rear end of pull bar is articulated and connected with the front end of arm-tie；

Described transmission device includes vertical rod and back-moving spring mechanism；The middle part of vertical rod is articulated and connected with the rear end of arm-tie, The middle and lower part of vertical rod is articulated and connected with frame, and the bottom of vertical rod is symmetrical fork configuration, two bottoms of fork configuration The rear end of two connecting rods for being horizontally set on braking rail both sides by joint ball bearing and fore-and-aft direction respectively is hinged installation；Reset Spring mechanism includes stage clip, and the rear alignment of stage clip acts against the upper front of vertical rod, positioned at vertical rod and arm-tie articulated position Top, the front end positioning of stage clip is acted against in frame；

Described safety tongs brake apparatus includes safety tongs support, the dynamic voussoir of mutual wedge surface cooperation and determines voussoir；Safety Pincers support is arranged on the lower section of frame；It is two groups to move voussoir and determine voussoir to be integrally symmetrical set relative to braking rail, moves wedge Block is that pre-small post-large wedge structure is arranged on the inner side for determining voussoir, and the lateral surface of the right-angle side correspondence braking rail of dynamic voussoir sets Put and the right-angle side of dynamic voussoir is provided with wear-resistant slide block, dynamic voussoir is coordinated by guiding mechanism with voussoir wedge surface is determined, move voussoir Rear end is hinged installation by the front end of joint ball bearing and connecting rod；The right-angle side for determining voussoir is pacified by horizontally disposed stud On safety tongs support.

Used as further improvement of the utility model scheme, the upper end of described vertical rod is provided with the extension handle for upwardly extending Section；Described braking catcher also includes switching device, and switching device wears the extension hand for being connected on vertical rod including radial direction The latch of handle section bottom and the location hole being correspondingly arranged in frame.

Used as further improvement of the utility model scheme, described latch is spaced that to be provided with two circles trapezoidal fixed in the axial direction Position groove, correspondence is located at and is provided with screw near the position of the trapezoidal locating slot of latch afterbody in described vertical rod, certainly export-oriented in screw Positioning screw, spring and steel ball are inside sequentially provided with, steel ball is acted against in the trapezoidal locating slot of latch.

As further improvement of the utility model scheme, set between the described right-angle side for determining voussoir and safety tongs support Put buffer spring.

As further improvement of the utility model scheme, between the described rear and front end for determining voussoir and safety tongs support It is equipped with the guiding mechanism worked in coordination.

As further improvement of the utility model scheme, it is provided with the installation site of frame on described safety tongs support The oval mounting hole that left and right horizontal direction is set, safety tongs support passes through to wear the installation bolt being connected on oval mounting hole and fix to pacify In frame.

As further improvement of the utility model scheme, correspondence safety tongs support or so both ends of the surface in described frame Position is additionally provided with symmetrically arranged horizontal level Positioning screw, and horizontal level Positioning screw is threadedly coupled and horizontal position with frame Put and locking nut is provided between Positioning screw and frame.

As preferred scheme of the present utility model, described dynamic voussoir and determine to be provided with voussoir the gathering sill worked in coordination And feather key.

As the dynamic voussoir of the utility model and a kind of implementation method for determining the gathering sill and feather key worked in coordination on voussoir, The dynamic voussoir guide bar slot being be arranged in parallel with its wedge surface is equipped with the top plane of described dynamic voussoir and baseplane, described determines wedge It is equipped with the top plane of block and baseplane and guide plate that be connected and wedge surface be arranged in parallel, the dynamic voussoir of guide plate correspondence is installed with it The position of guide bar slot is provided with the bending edges bent and in embedded dynamic voussoir guide bar slot.

As a kind of implementation method of the back-moving spring mechanism of the utility model transmission device, described back-moving spring mechanism Also include vertical rod press spring base, frame press spring base and sphere dynamic pressure spring abutment；Vertical rod press spring base is fixedly mounted in vertical rod, frame stage clip Seat correspondence vertical rod press spring base is fixedly mounted in frame, and vertical rod press spring base and frame press spring base face in correspondence with each other are respectively provided with balling-up Face dimple formation；Sphere dynamic pressure spring abutment is dome-type structure, size and vertical rod press spring base and the frame press spring base of its spherical structure Sphere dimple formation dimensional fits, the planar structure of sphere dynamic pressure spring abutment is provided with and described stage clip dimensional fits blind hole knot Structure, connection spherically mounted with vertical rod press spring base and frame press spring base forms dynamic cooperation, stage clip top to two pieces sphere dynamic pressure spring abutment respectively Lean against on the blind hole structure of two pieces sphere dynamic pressure spring abutment.

Compared with prior art, this two-way tape braking rail safety pincer type braking mine car breaks once there is winch haulage cable Rope or situation about breaking off relations, mine car rear and front end coupling part lose tractive force, under the recovery elastic force effect of stage clip, vertical rod Rotated around bearing pin, one side vertical rod drives pull bar to move by arm-tie in rotary course, due to no traction between two section mine cars Power, and then realize the distance between the two section mine cars that further；The fork-shaped bottom of another aspect vertical rod promotes connecting rod movement, and connecting rod is then Promote dynamic voussoir makes the right-angle side of voussoir near the side of braking rail along the wedge surface movement of dynamic voussoir, determines voussoir by buffering elastic Spring is constrained away from track along safety tongs support, and is finally fixed on safety tongs support, wear-resisting on voussoir right-angle side by moving Frictional force between sliding block and braking rail side brakes in braking rail mine car, realizes the locking halted state of this mine car, by In being equipped with braking catcher in vehicle frame rear and front end, therefore whether lead in mine car direction of advance front or behind Draw wire rope breaking or the situation of unhook this mine car can mechanical braking rapidly, and be easily installed with maintenance, especially fit For coal mine inclined shaft hauling operation.

Brief description of the drawings

Fig. 1 be the utility model be in on-position when structural representation；

Fig. 2 be the utility model be in non-brake state when structural representation；

Fig. 3 is partial enlarged drawing when the utility model brakes catcher in on-position；

Fig. 4 is partial enlarged drawing when the utility model brakes catcher in non-brake state；

Fig. 5 is the A direction views of Fig. 3；

Fig. 6 is the B direction views of Fig. 4；

The C-C sectional views of Fig. 7 Fig. 4；

The D-D sectional views of Fig. 8 Fig. 4；

The E-E sectional views of Fig. 9 Fig. 4；

The F-F sectional views of Figure 10 Fig. 5；

The G-G sectional views of Figure 11 Fig. 5；

The H-H sectional views of Figure 12 Fig. 5；

In figure：1st, pull bar；2nd, frame；3rd, arm-tie；4th, frame press spring base；5th, sphere dynamic pressure spring abutment；6th, stage clip；7th, vertical rod pressure Spring abutment；8th, vertical rod；9th, bearing pin；10th, connecting rod；11st, voussoir is moved；11-1, dynamic voussoir guide bar slot；12nd, safety tongs support；13rd, level Position Positioning screw；14th, stud；15th, buffer spring；16th, voussoir is determined；16-1, guide plate；17th, latch；18th, steel ball；19、 Spring；20th, Positioning screw；21st, braking rail.

Specific embodiment

The utility model is described further below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the utility model provides a kind of two-way tape braking rail safety pincer type braking mine car, including two sets Braking catcher, two sets of braking catchers are symmetrically mounted in the frame 2 of mine car fore-and-aft direction, and the direction of arrow is ore deposit Car direction of advance, braking rail 21 sets and is fixedly mounted between two pieces tramroad parallel to tramroad.

Described braking catcher includes sport car information collecting device, transmission device and safety tongs brake apparatus.

As a example by positioned at the braking catcher in front, as shown in Figure 3, Figure 4, described sport car information collecting device bag Include pull bar 1 and arm-tie 3；, horizontal through the pilot hole in frame 2, pull bar 1 can be in the pilot hole of frame 2 for the fore-and-aft direction of pull bar 1 Slide anteroposterior, the front end of pull bar 1 is connected by bearing pin with the round-link chain of prosthomere mine car, and the rear end of pull bar 1 is by bearing pin and arm-tie 3 Front end be hinged.

Described transmission device includes vertical rod 8 and back-moving spring mechanism；The middle part of vertical rod 8 passes through pin with the rear end of arm-tie 3 Axle is hinged, and middle and lower part and the frame 2 of vertical rod 8 are hinged by bearing pin 9, as shown in fig. 7, the bottom of vertical rod 8 is symmetrical fork Shape structure, two bottoms of fork configuration are horizontally set on the both sides of braking rail 21 by joint ball bearing and fore-and-aft direction respectively The rear end of two connecting rods 10 is hinged installation；Back-moving spring mechanism includes stage clip 6, and the rear alignment of stage clip 6 acts against the upper of vertical rod 8 Before portion, positioned at the top of vertical rod 8 and the articulated position of arm-tie 3, the front end positioning of stage clip 6 is acted against in frame 2.

As shown in Figure 5, Figure 6, described safety tongs brake apparatus includes the dynamic wedge that safety tongs support 12, mutual wedge surface coordinate Block 11 and determine voussoir 16；Safety tongs support 12 is arranged on the lower section of frame 2；Move voussoir 11 and determine the entirety of voussoir 16 relative to braking It is two groups that rail 21 is symmetrical set, and it is that pre-small post-large wedge structure is arranged on the inner side for determining voussoir 16 to move voussoir 11, moves wedge The lateral surface of the right-angle side correspondence braking rail 21 of block 11 sets and the right-angle side of dynamic voussoir 11 is provided with wear-resistant slide block, moves voussoir 11 are coordinated by guiding mechanism with the wedge surface of voussoir 16 is determined, and moving voussoir 11 can move forward and backward realization along its wedge surface on voussoir 16 is determined Closer or far from braking rail 21, the rear end of dynamic voussoir 11 is hinged installation by the front end of joint ball bearing and connecting rod 10；Determine voussoir 16 right-angle side is arranged on safety tongs support 12 by horizontally disposed stud 14.

As a example by positioned at the braking catcher in front, as shown in Fig. 2, Fig. 6, this mine car is by traction steel wire wire saws When normally using, pull bar 1 drives arm-tie 3 to be moved forward by traction, and then vertical rod 8 is turned clockwise around the center of bearing pin 9, rotates During vertical rod 8 upper compression stage clip 6 make stage clip 6 be in compressive state, while after the fork-shaped bottom drivening rod 10 of vertical rod 8 Move, connecting rod 10 then pulls the dynamic voussoir 11 to make the right-angle side of voussoir 11 away from braking rail 21 along shifting after the wedge surface of dynamic voussoir 11 Side, realizes the non-locking state of this mine car normally travel.

As a example by positioned at the braking catcher in front, as shown in Figure 1, shown in Figure 5, when the wire rope breaking of traction mine car group Afterwards, tractive force is lost between mine car group, under the recovery elastic force effect of stage clip 6, vertical rod 8 is rotated counterclockwise around bearing pin 9, is rotated through One side vertical rod 8 drives pull bar 1 to be moved rearwards by by arm-tie 3 in journey, due to not having tractive force between two section mine cars, and then realizes Further the distance between two section mine cars；The fork-shaped bottom of another aspect vertical rod 8 promotes connecting rod 10 to move forward, and connecting rod 10 then promotes dynamic Voussoir 11 makes the right-angle side of voussoir 11 near the side of braking rail 21 along the wedge surface reach of dynamic voussoir 11, straight by dynamic voussoir 11 The frictional force between wear-resistant slide block and the side of braking rail 21 on the arm of angle brakes in braking rail 21 mine car, realizes this mine car Locking halted state.

Braking catcher operation principle and process and the above-mentioned braking catcher positioned at front being located behind Similar, simply direction symmetrically changes, and no longer describes herein.

In order to realize that catcher is braked in entry transportation when mine car does not work, as the utility model Further improvement project, as shown in Fig. 4, the upper end of described vertical rod 8 is provided with the extension handle section for upwardly extending；Described Braking catcher also includes switching device, as shown in figure 9, switching device wears the extension for being connected on vertical rod 8 including radial direction The latch 17 of handle section bottom and the location hole being correspondingly arranged in frame 2；Mine car is needed when entry is transported, operator Member can rearward be promoted from front the extension handle section of vertical rod 8 vertical rod 8 is turned clockwise around the center of bearing pin 9, dynamic voussoir 11 Right-angle side away from the side of braking rail 21, latch 17 is inserted in frame 2 when latch 17 aligns the location hole in frame 2 The positioning of vertical rod 8 is capable of achieving in location hole.

In order to prevent latch 17 in 8 positioning states of vertical rod because of the improper location hole for departing from frame 2 of the reasons such as vibration, make It is further improvement of the utility model scheme, described latch 17 is spaced is provided with the trapezoidal locating slot of two circles, institute in the axial direction Correspondence is located at the position of the trapezoidal locating slot near latch 17 afterbody and is provided with screw in the vertical rod 8 stated, in screw from the outside to the core according to Secondary to be provided with Positioning screw 20, spring 19 and steel ball 18, steel ball 18 is acted against in the trapezoidal locating slot of latch 17；When vertical rod 8 is positioned Latch 17 is in insert state during state, and steel ball 18 is acted against in the trapezoidal locating slot near the afterbody of latch 17；When vertical rod 8 Latch 17 is in extraction state during non-locating state, and steel ball 18 is acted against in the trapezoidal locating slot near the head of latch 17, Can prevent latch 17 from losing.

In order to slow down impulsive force of the wear-resistant slide block to the side of braking rail 21, so realize preventing wear-resistant slide block Fast Wearing, Extend the service life of wear-resistant slide block, as further improvement of the utility model scheme, the described right-angle side for determining voussoir 16 Buffer spring 15 is set between safety tongs support 12, and buffer spring 15 can make to act on the frictional force on the side of braking rail 21 Gradually increase.

Moved horizontally to ensure to determine voussoir 16 to consolidate with not deflected in the presence of buffer spring 15, as this reality With new further improvement project, as shown in Figure 10, Figure 11, the described rear and front end for determining voussoir 16 and safety tongs support 12 Between be equipped with the guiding mechanism worked in coordination.

It is identical in order to realize the dynamic gap between voussoir 11 and the two sides of braking rail 21 of regulation two pieces, and then unbalance loading is prevented, As further improvement of the utility model scheme, as shown in Figure 5, Figure 6, the peace on described safety tongs support 12 with frame 2 Holding position is provided with the oval mounting hole of left and right horizontal direction setting, and safety tongs support 12 passes through to wear the peace being connected on oval mounting hole Dress bolt is fixedly mounted in frame 2；Wear the installation bolt that is connected on oval mounting hole and adjust safety tongs support by unclamping The dynamic voussoir 11 of installation bolt realization regulation and system worn and be connected on oval mounting hole are screwed behind 12 position in the lateral direction again Gap between the two sides of dynamic rail 21.

In order to further realize being easy to adjust the dynamic gap between voussoir 11 and the two sides of braking rail 21 of two pieces, as this reality With new further improvement project, as shown in Figure 7, Figure 8, the both ends of the surface of correspondence safety tongs support 12 or so in described frame 2 Position be additionally provided with symmetrically arranged horizontal level Positioning screw 13, horizontal level Positioning screw 13 be threadedly coupled with frame 2 and Locking nut is provided between horizontal level Positioning screw 13 and frame 2；By the level for adjusting the two ends of safety tongs support 12 or so The extension elongation of position Positioning screw 13 is simultaneously locked by locking nut, can conveniently adjust the left and right horizontal of safety tongs support 12 Position, and then realize being easy to adjust the dynamic gap between voussoir 11 and the two sides of braking rail 21 of two pieces.

Described dynamic voussoir 11 can be provided on safety tongs support 12 with the guiding mechanism for determining the cooperation of the wedge surface of voussoir 16 The pilot hole being oriented to connecting rod 10, or be set directly at dynamic voussoir 11 and the gathering sill determine on voussoir 16 and lead Xiang Jian, because the latter can make voussoir 11 coordinate mobile more accurate and the latter to be easier to control scotch with the wedge surface of voussoir 16 is determined The displacement of the in the vertical direction of block 11, therefore preferably the latter, i.e. as preferred scheme of the present utility model, described dynamic voussoir 11 and determine to be provided with voussoir 16 gathering sill and feather key worked in coordination.

Implement as the dynamic voussoir 11 of the utility model and the one kind for determining the gathering sill and feather key worked in coordination on voussoir 16 Mode, as shown in figure 12, the dynamic wedge being be arranged in parallel with its wedge surface is equipped with the top plane of described dynamic voussoir 11 and baseplane Block guide bar slot 11-1, is equipped with the described top plane for determining voussoir 16 and baseplane and installs the parallel with wedge surface of connection with it The position of the dynamic voussoir guide bar slot 11-1 of the guide plate 16-1 of setting, guide plate 16-1 correspondence is provided with and bends and embedded dynamic voussoir guide bar slot Bending edges in 11-1, the setting of guide plate 16-1 and dynamic voussoir guide bar slot 11-1 can ensure dynamic voussoir 11 and determine voussoir 16 along wedge Face remains contact and energy relative motion.

As a kind of implementation method of the back-moving spring mechanism of the utility model transmission device, as shown in figure 3, described answers Position spring mechanism also includes vertical rod press spring base 7, frame press spring base 4 and sphere dynamic pressure spring abutment 5；Vertical rod press spring base 7 is fixedly mounted on In vertical rod 8, the corresponding vertical rod press spring base 7 of frame press spring base 4 is fixedly mounted in frame 2, vertical rod press spring base 7 and frame press spring base 4 Face in correspondence with each other is respectively provided with into sphere dimple formation；Sphere dynamic pressure spring abutment 5 is dome-type structure, the size of its spherical structure with The sphere dimple formation dimensional fits of vertical rod press spring base 7 and frame press spring base 4, the planar structure of sphere dynamic pressure spring abutment 5 is provided with With the described dimensional fits blind hole structure of stage clip 6, two pieces sphere dynamic pressure spring abutment 5 respectively with vertical rod press spring base 7 and frame press spring base 4 Spherically mounted connection forms dynamic cooperation, and stage clip 6 is acted against on the blind hole structure of two pieces sphere dynamic pressure spring abutment 5.

This two-way tape braking rail safety pincer type braking mine car rope or the feelings for breaking off relations once generation winch haulage cable breaks Condition, mine car rear and front end coupling part loses tractive force, and under the recovery elastic force effect of stage clip 6, vertical rod 8 is rotated around bearing pin 9, One side vertical rod 8 drives pull bar 1 to move by arm-tie 3 in rotary course, due to not having tractive force, Jin Ershi between two section mine cars Now further the distance between two section mine cars；The fork-shaped bottom of another aspect vertical rod 8 promotes connecting rod 10 to move, and connecting rod 10 is then promoted Dynamic voussoir 11 makes the right-angle side of voussoir 11 near the side of braking rail 21 along the wedge surface movement of dynamic voussoir 11, determines voussoir 16 and passes through Buffer spring 15 is constrained away from track along safety tongs support 12, and is finally fixed on safety tongs support, straight by dynamic voussoir 11 The frictional force between wear-resistant slide block and the side of braking rail 21 on the arm of angle brakes in braking rail 21 mine car, realizes this mine car Locking halted state, due to being equipped with braking catcher in the rear and front end of vehicle frame 2, therefore whether in mine car direction of advance Front or behind occur haulage cable break rope or situation this mine car for breaking off relations can mechanical braking rapidly, and be easy to pacify Dress and maintenance, are particularly well-suited to coal mine inclined shaft hauling operation.

Claims (8)

1. a kind of two-way tape braking rail safety pincer type braking mine car, including two sets of braking catchers, two sets of braking prevent-moving cars Device is symmetrically mounted in the frame of mine car fore-and-aft direction (2), and braking rail (21) sets and fixedly mount parallel to tramroad Between two pieces tramroad；Characterized in that,

Described braking catcher includes sport car information collecting device, transmission device and safety tongs brake apparatus；

Described sport car information collecting device includes pull bar (1) and arm-tie (3)；Pull bar (1) fore-and-aft direction is horizontal through frame (2) On pilot hole, the front end of pull bar (1) is connected with round-link chain, and rear end and the front end of arm-tie (3) of pull bar (1) are articulated and connected；

Described transmission device includes vertical rod (8) and back-moving spring mechanism；The middle part of vertical rod (8) is hinged with the rear end of arm-tie (3) Connection, middle and lower part and the frame (2) of vertical rod (8) are articulated and connected, and the bottom of vertical rod (8) is symmetrical fork configuration, fork-shaped Two bottoms of structure are horizontally set on two connecting rods of braking rail (21) both sides by joint ball bearing and fore-and-aft direction respectively (10) rear end is hinged installation；Back-moving spring mechanism includes stage clip (6), and the rear alignment of stage clip (6) acts against the upper of vertical rod (8) Before portion, positioned at the top of vertical rod (8) and arm-tie (3) articulated position, the front end positioning of stage clip (6) is acted against in frame (2)；

Described safety tongs brake apparatus includes safety tongs support (12), the dynamic voussoir (11) of mutual wedge surface cooperation and determines voussoir (16)；Installation position of the safety tongs support (12) with frame (2) on the lower section of frame (2), safety tongs support (12) installs There is the oval mounting hole that left and right horizontal direction is set, safety tongs support (12) is by wearing the installation bolt being connected on oval mounting hole It is fixedly mounted in frame (2)；Dynamic voussoir (11) and determine voussoir (16) integrally relative to braking rail (21) be symmetrical set for Two groups, it is that pre-small post-large wedge structure is arranged on the inner side for determining voussoir (16) to move voussoir (11), moves the right-angle side of voussoir (11) The lateral surface of correspondence braking rail (21) is set and the right-angle side of dynamic voussoir (11) is provided with wear-resistant slide block, and dynamic voussoir (11) passes through Guiding mechanism coordinates with voussoir (16) wedge surface is determined, and the rear end for moving voussoir (11) is cut with scissors by joint ball bearing with the front end of connecting rod (10) Connect installation；The right-angle side for determining voussoir (16) passes through horizontally disposed stud (14) on safety tongs support (12), determines Buffer spring (15) is set between the right-angle side and safety tongs support (12) of voussoir (16).

2. two-way tape braking rail safety pincer type according to claim 1 brakes mine car, it is characterised in that described vertical rod (8) upper end is provided with the extension handle section for upwardly extending；Described braking catcher also includes switching device, switching device The latch (17) of the extension handle section bottom for being connected on vertical rod (8) is worn including radial direction and determining in frame (2) is correspondingly arranged at Position hole.

3. two-way tape braking rail safety pincer type according to claim 2 brakes mine car, it is characterised in that described latch (17) interval is provided with the trapezoidal locating slot of two circles in the axial direction, and correspondence is located near latch (17) afterbody in described vertical rod (8) The position of trapezoidal locating slot be provided with screw, Positioning screw (20), spring (19) and steel ball are sequentially provided with screw from the outside to the core (18), steel ball (18) is acted against in the trapezoidal locating slot of latch (17).

4. two-way tape braking rail safety pincer type according to claim 1 brakes mine car, it is characterised in that described determines voussoir (16) guiding mechanism worked in coordination is equipped between rear and front end and safety tongs support (12).

5. two-way tape braking rail safety pincer type according to claim 1 brakes mine car, it is characterised in that described frame (2) position of correspondence safety tongs support (12) left and right both ends of the surface is additionally provided with symmetrically arranged horizontal level Positioning screw (13) on, Horizontal level Positioning screw (13) is threadedly coupled with frame (2) and is provided between horizontal level Positioning screw (13) and frame (2) Locking nut.

6. the two-way tape braking rail safety pincer type according to claim 1 or 2 or 3 brakes mine car, it is characterised in that described Move voussoir (11) and determine to be provided with the gathering sill and feather key worked in coordination on voussoir (16).

7. two-way tape braking rail safety pincer type according to claim 6 brakes mine car, it is characterised in that described dynamic voussoir (11) the dynamic voussoir guide bar slot (11-1) being be arranged in parallel with its wedge surface is equipped with top plane and baseplane, described determines voussoir (16) it is equipped with top plane and baseplane and guide plate (16-1) that be connected and wedge surface be arranged in parallel, guide plate is installed with it The position of dynamic voussoir guide bar slot (11-1) of (16-1) correspondence is provided with the bending edges bent and in embedded dynamic voussoir guide bar slot (11-1).

8. the two-way tape braking rail safety pincer type according to claim 1 or 2 or 3 brakes mine car, it is characterised in that described Back-moving spring mechanism also includes vertical rod press spring base (7), frame press spring base (4) and sphere dynamic pressure spring abutment (5)；Vertical rod press spring base (7) It is fixedly mounted in vertical rod (8), frame press spring base (4) correspondence vertical rod press spring base (7) is fixedly mounted in frame (2), vertical rod pressure Spring abutment (7) and frame press spring base (4) face in correspondence with each other are respectively provided with into sphere dimple formation；Sphere dynamic pressure spring abutment (5) is hemisphere Type structure, size and vertical rod press spring base (7) and the sphere dimple formation dimensional fits of frame press spring base (4) of its spherical structure, The planar structure of sphere dynamic pressure spring abutment (5) is provided with and described stage clip (6) dimensional fits blind hole structure, two pieces sphere dynamic pressure spring Connection spherically mounted with vertical rod press spring base (7) and frame press spring base (4) forms dynamic cooperation to seat (5) respectively, and stage clip (6) acts against two On the blind hole structure of part sphere dynamic pressure spring abutment (5).