CN107584576A

CN107584576A - Wood cutting machine

Info

Publication number: CN107584576A
Application number: CN201710448695.3A
Authority: CN
Inventors: 张伟芳
Original assignee: Nanning Yicheng Security Equipment Co ltd
Current assignee: Nanning Yicheng Security Equipment Co ltd
Priority date: 2017-06-14
Filing date: 2017-06-14
Publication date: 2018-01-16

Abstract

The invention discloses a wood cutting machine, which comprises an underframe and a bottom support arranged on the top end surface of the rear side of the underframe, wherein a supporting column extending upwards is fixedly arranged at the front side edge of the top end surface of the bottom support, a rotating locking shaft extending towards the front and back directions is connected in a rotating and matching way with the supporting column, a rectangular sliding cavity is arranged in the end surface of the front extending tail end of the rotating locking shaft, an internal spline rotating shaft is arranged in the inner wall of the rear side of the rectangular sliding cavity in a rotating and matching way, the rear side end of the internal spline rotating shaft is connected with a locking motor in a matching way, a storage battery is arranged in the rotating locking shaft at the rear side of the locking motor, the locking piece comprises an external piece, a round convex block fixed on the back side end face of the external piece, a first inserted bar fixed on the periphery of the back side end face of the external piece outside the round convex block and a second inserted bar fixed on the back side end face of the round convex block; the invention has simple structure, can be quickly locked and installed and improves the cutting process.

Description

A kind of machine and wood cutting

Technical field

The present invention relates to wood processing equipment technical field, a kind of machine and wood cutting.

Background technology

With the continuous development and progress of country, the demand of timber is gradually increasing, the requirement for cutting machine also progressively on Rise, cut cutting blade in timber process and be easy to wear, have impact on cut quality and efficiency, traditional cutting equipment Cutting blade is bolted to connection, cumbersome during more allowing blade replacement, it is necessary to the bolt of fixed blade is turned on, and then could More allowing blade replacement, subsequently bolt is tightened, such constructing operation process needs to spend very big time and efforts to go to change, and gives The process of construction brings larger trouble, influences timber machine process, and traditional cutting equipment is for different size of wood Material fine can not obtain location control, reduce operating efficiency.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of machine and wood cutting, and it can solve the problem that above-mentioned show in the art The problem of.

The present invention is achieved through the following technical solutions：The present invention a kind of machine and wood cutting, including chassis and The collet of the chassis backside top end face is arranged on, is fixed with and upwardly extends at the forward edge of collet top end face The support column of setting, it is rotatably assorted in the support column and is connected with rotation lock shaft extended to front-rear direction, described turn Rectangular slide chamber is provided with front side of dynamic lock shaft in extending end end face, is rotatably assorted in the rectangular slide chamber rear side inwall in having Spline rotary shaft, the internal spline rotary shaft rear side end are connected with lock out motor, described turn on rear side of the lock out motor Battery, the locking piece for rotating lock shaft front and being provided with sliding connection, the locking piece are provided with dynamic lock shaft Including external piece, be fixed on the round bump of the external piece back end surface, be fixed on it is described outer on the outside of the round bump First inserted link of fitting back end surface surrounding and the second inserted link for being fixed on the round bump back end surface, described second inserts It is provided with locking drive cavity in bar, inwall centre position, which is rotatably assorted, on rear side of the locking drive cavity is connected with front and rear be extended External splines rotary shaft, the external splines rotary shaft rear side end are stretched out outside the second inserted link back end surface, and the external splines rotates Extending end is stretched into the locking drive cavity on front side of axle and end is installed with cam, the locking of the upper and lower both sides of the cam Inwall is symmetrically installed with guide sleeve on rear side of drive cavity, is slidably connected to the extension of upper and lower both sides and sets in each guide sleeve The securing rod put, the cam left and right sides are arranged with projection, the upside securing rod bottom end and the left side projection Between and the downside securing rod top end and the right side projection between be respectively articulated with and be connected with push rod, the branch Brake stop device is symmetrically set with platen.

Preferably technical scheme, the chassis front side are arranged with guide groove at left and right sides of the end face of top, each Front and rear extension, which is provided with, in the guide groove adjusts threaded rod, and screw thread is connected with regulation and slided on the regulation threaded rod Block, the regulation sliding shoe top end are fixed with regulation positioning baffle, the regulation threaded rod front side end and the guide groove Front inner wall is rotatably assorted connection, and the regulation threaded rod rear side end is connected with regulation motor, the regulation motor appearance Face is in inwall on rear side of the guide groove and is fixedly connected.

Preferably technical scheme, extending end is fixed with first pulley on rear side of the rotation lock shaft, described turn Cutting motor is fixed with the support column back end surface below dynamic lock shaft, is connected with rear side of the cutting motor Second belt wheel, transmission belt is connected between the first pulley and second belt wheel.

Preferably technical scheme, the rotation lock shaft are electrically connected with the battery.

Preferably technical scheme, cutting blade is connected between the locking piece and the rotation lock shaft, The cutting blade centre position is provided with annular fixture, the annular fixture centre position be provided with to the circle The circular locking hole that shape projection is connected, the circular locking hole is equal with the diameter of the round bump, the circle The annular fixture surrounding on the outside of shape locking hole is equipped with the connection through hole to be connected with first inserted link.

Preferably technical scheme, on rear side of the locking drive cavity between the upside guide sleeve and the cam in On rear side of the locking drive cavity between wall and the downside guide sleeve and the cam limited block is all provided with inwall.

Preferably technical scheme, on front side of the rotation lock shaft extending end end face surrounding be equipped with to it is described The counterbore that first inserted link is connected, the inwall up and down of the rectangular slide intracavitary are arranged with lock hole, the upside locking Feeler, the feeler and the lock out motor are equipped with hole inner roof wall and downside the lock hole inner bottom wall It is electrically connected with.

The top end face of second inserted link is run through in preferably technical scheme, upside securing rod top extension And it is slidably connected, bottom end face and be slidably matched company of the downside securing rod bottom extension through second inserted link Connect, the upside securing rod bottom end both sides at left and right sides of the securing rod top end of downside with being equipped with projection, upside Upside between the projection and the upside guide sleeve of the securing rod bottom end both sides locking rod outer surface with And outside the downside securing rod between the projection and the downside guide sleeve of the downside securing rod top end both sides Surface surround and is provided with top pressure spring.

Preferably technical scheme, the brake that the brake stop device includes being fixedly installed on the support column madial wall have a power failure Machine, the brake power failure machine are connected with threaded rod close to the first pulley side, and the threaded rod is close to the first band Wheel side screw thread is connected with screw shell, and the screw shell is fixedly installed brake close to the first pulley side and stopped Pawl.

The beneficial effects of the invention are as follows：

1. setting rectangular slide chamber on front side of lock shaft in extending end end face by rotating, rotate and match somebody with somebody in inwall on rear side of rectangular slide chamber Internal spline rotary shaft is closed, internal spline rotary shaft rear side end is connected with lock out motor, the rotation lock shaft on rear side of lock out motor Battery is inside set, locking work is automatically controlled so as to realize.

2. setting the locking piece of sliding connection by rotating lock shaft front, locking piece includes external piece, is fixed on The round bump of external piece back end surface, the external piece back end surface surrounding being fixed on the outside of round bump the first inserted link and The second inserted link of round bump back end surface is fixed on, locking drive cavity is set in the second inserted link, is locked on rear side of drive cavity in inwall Between position be rotatably assorted connection before and after be extended external splines rotary shaft, external splines rotary shaft rear side end stretch out the second inserted link after Outside side end face, external splines rotary shaft front side extending end stretches into locking drive cavity and the fixed cam in end, both sides above and below cam Locking drive cavity on rear side of the symmetrical fixed guide sleeve of inwall, be slidably connected to the extension of upper and lower both sides in each guide sleeve and set The securing rod put, symmetrically projection is set at left and right sides of cam, between upside securing rod bottom end and left side projection and lower side chain Mating connection push rod is respectively articulated between fixed pole top end and right side projection, so as to realize that automatically controlling the automatic of securing rod stretches Go out locking transmission work.

3. symmetrically setting guide groove by the left and right sides of top end face on front side of chassis, front and rear extend sets in each guide groove Regulation threaded rod, adjusts screw thread mating connection regulation sliding shoe on threaded rod, and the top end fixation of regulation sliding shoe sets regulation and positioned Baffle plate, regulation threaded rod front side end is rotatably assorted with guide groove front inner wall to be connected, and adjusts threaded rod rear side end and regulation motor It is connected, regulation motor outer surface is in inwall on rear side of guide groove and is fixedly connected, so as to realize that automatic control and adjustment is determined The movable regulation of position baffle plate.

4. by the cutting blade that is connected between locking piece and rotation lock shaft, cutting blade interposition installs annular Fixture, annular fixture interposition install the circular locking hole to be connected with round bump, circular locking hole with The diameter of round bump is equal, and the annular fixture surrounding on the outside of circular locking hole is all provided with to coordinate with the first inserted link The connection through hole of connection, so as to realize that fast positioning is installed, improve installation rate and installation steadiness.

5. the present invention is simple in construction, easy to operate, automatic Fast Installation and installation locking work can be realized, improves installation Efficiency, the whole progress of timber cutting processing is not influenceed, can meet that different size of timber carries out positioning adjustment control, raising is set Standby feature.

Brief description of the drawings

For ease of explanation, the present invention is described in detail by following specific embodiment and accompanying drawing.

Fig. 1 is a kind of machine and wood cutting overall structure diagram of the present invention；

Fig. 2 is the regulation positioning baffle structural representation of the present invention；

Fig. 3 is the rotation lock shaft internal structure schematic diagram of the present invention；

Fig. 4 is the structural representation of the cutting blade of the present invention；

Fig. 5 is the rotation lock shaft front view of the present invention；

Fig. 6 is the locking piece external structure schematic diagram of the present invention；

Fig. 7 is the sectional view of " B-B " in Fig. 6 of the present invention；

Fig. 8 is structural representation when the second inserted link of the present invention is connected with rectangular slide chamber.

Fig. 9 is the structural representation when rotation lock shaft of the present invention is connected with locking piece lock fit；

Figure 10 is the support column rearview of the present invention.

Embodiment

As shown in Fig. 1-Figure 10, a kind of machine and wood cutting of the invention, including chassis 4 and after being arranged on the chassis 4 The collet 6 of side roof part end face, the support column for upwardly extending setting is fixed with the forward edge of the top end face of collet 6 61, it is rotatably assorted in the support column 61 and is connected with rotation lock shaft 5 extended to front-rear direction, the rotation lock shaft Rectangular slide chamber 51 is provided with 5 front sides extending end end face, being rotatably assorted in the rear side inwall of rectangular slide chamber 51 has interior flower Key rotary shaft 551, the rear side end of internal spline rotary shaft 551 are connected with lock out motor 55, the rear side of lock out motor 55 The rotation lock shaft 5 in be provided with battery 53, the front of lock shaft 5 that rotates is provided with the locking piece being slidably connected 8, the locking piece 8 includes external piece 86, is fixed on the round bump 82 of the back end surface of external piece 86, is fixed on the circle First inserted link 83 of the back end surface surrounding of the external piece 86 in the outside of shape projection 82 and after being fixed on the round bump 82 Second inserted link 85 of side end face, interior be provided with of second inserted link 85 lock drive cavity 851, in the rear side of locking drive cavity 851 Wall centre position, which is rotatably assorted, is connected with front and rear extended external splines rotary shaft 84, the rear side end of external splines rotary shaft 84 Stretch out outside the back end surface of the second inserted link 85, the front side extending end of external splines rotary shaft 84 stretches into the locking drive cavity In 851 and end is installed with cam 854, and the rear side inwall of the locking drive cavity 851 of cam both sides about 854 is symmetrically solid Provided with guide sleeve 852, the securing rod 853 being extended to upper and lower both sides is slidably connected in each guide sleeve 852, The left and right sides of cam 854 is arranged with projection 8541, the upside bottom end of securing rod 853 and the left side projection It is respectively articulated with and is connected between the 8541 and downside top end of securing rod 853 and the right side projection 8541 Push rod 855, brake stop device is symmetrically set with the support column 61.

Wherein, guide groove 41 is arranged with left and right sides of the top end face of the front side of chassis 4, each guide groove 41 Interior front and rear extension is provided with regulation threaded rod 42, and screw thread is connected with regulation sliding shoe 44, institute on the regulation threaded rod 42 State the regulation top end of sliding shoe 44 and be fixed with regulation positioning baffle 9, the regulation front side end of threaded rod 42 and the guide groove 41 front inner walls are rotatably assorted connection, and the regulation rear side end of threaded rod 42 is connected with regulation motor 43, and the regulation is electric The outer surface of machine 43 is in the rear side inwall of guide groove 41 and is fixedly connected, so as to realize automatic control and adjustment positioning baffle 9 Movable regulation.

Wherein, the rotation rear side extending end of lock shaft 5 is fixed with first pulley 52, described to rotate under lock shaft 5 Cutting motor 62 is fixed with the back end surface of the support column 61 of side, the rear side of cutting motor 62 is connected with second Belt wheel 621, transmission belt 622 is connected between the first pulley 52 and second belt wheel 621, so as to realize cutter The control of work.

Wherein, the rotation lock shaft 5 is electrically connected with the battery 53.

Wherein, cutting blade 7, the cutting blade are connected between the locking piece 8 and the rotation lock shaft 5 7 centre positions are provided with annular fixture 71, the centre position of annular fixture 71 be provided with to the round bump The 82 circular locking hole 72 being connected, the circular locking hole 72 is equal with the diameter of the round bump 82, described The surrounding of annular fixture 71 in the circular outside of locking hole 72 is equipped with to be connected with first inserted link 83 Through hole 73 is connected, so as to realize that fast positioning is installed, improves installation rate and installation steadiness.

Wherein, the rear side inwall of the locking drive cavity 851 between the upside guide sleeve 852 and the cam 854 with Limited block is all provided with the rear side inwall of the locking drive cavity 851 between the downside guide sleeve 852 and the cam 854 856, so as to realize the oriented sliding of securing rod 853 and spacing work, prevent the excess of stroke of securing rod 853.

Wherein, the rotation front side extending end end face surrounding of lock shaft 5 is equipped with to match somebody with somebody with first inserted link 83 The counterbore 56 of connection is closed, the inwall up and down in the rectangular slide chamber 51 is arranged with lock hole 54, the upside lock hole 54 Feeler 541, the feeler 541 and the lock are equipped with inner roof wall and the downside inner bottom wall of lock hole 54 Determine motor 55 to be electrically connected with.

Wherein, the upside top extension of securing rod 853 is matched somebody with somebody through the top end face of second inserted link 85 and slip Connection is closed, the bottom end face of second inserted link 85 and sliding connection are run through in the downside bottom extension of securing rod 853, The upside bottom end both sides of securing rod 853 at left and right sides of the top end of securing rod 853 of downside with being equipped with projection 8531, the upside between the projection 8531 and the upside guide sleeve 852 of the upside bottom end both sides of securing rod 853 Described in the projection 8531 of the outer surface of securing rod 853 and downside the top end both sides of securing rod 853 and downside The downside outer surface of securing rod 853 between guide sleeve 852 is around top pressure spring 857 is provided with, so as to realize securing rod 853 Transmission work.

Wherein, the brake stop device includes being fixedly installed on the brake power failure machine 11 of the madial wall of support column 61, the brake Power failure machine 11 is connected with threaded rod 12 close to the side of first pulley 52, and the threaded rod 12 is close to the first pulley 52 side screw threads are connected with screw shell 13, and the screw shell 13 is fixedly installed close to the side of first pulley 52 Brake stops pawl 14, by setting the brake stop device, can be stopped operation immediately when meeting emergency situations.

During original state, pass through projection 8531 and the downside lock of the upside bottom end both sides of securing rod 853 The projection 8531 of the top end both sides of fixed pole 853 is caused the securing rod of upper and lower both sides by the pressure on top surface of top pressure spring 857 853 are fully located in the second inserted link 85, and now, the bottom end of securing rod 853 limited block 856 described with upside in upside offsets Connect, meanwhile, the top end of securing rod 853 limited block 856 described with downside in downside abuts against, now, cam 854 or so two The projection 8541 of side is made the projection 8541 of the left and right sides of cam 854 be driven respectively with the locking by the pressure on top surface of push rod 855 The left and right sides inwall of chamber 851 is in vertically opposite state.

When needing to install cutting blade 7 and cutting, the cutting blade 7 is moved to the locking piece 8 first Rearward position, make second inserted link 85 on locking piece 8 and the circular locking hole 72 in the annular fixture 71 In relative position, meanwhile, first inserted link 83 on the locking piece 8 is in relative position with the connection through hole 73 Put, be then moved rearwards the locking piece 8, second inserted link 85 of the rear side of locking piece 8 is gradually stretched into the circle In locking hole 72, until the locking piece 8 on the fully-inserted circular locking hole 72 of the round bump 82 in, now, After the first inserted link 83 on the locking piece 8 at utmost passes through the connection through hole 73 and stretches out the annular fixture 71 Outside side end face, the locking piece 8 is then moved, second inserted link 85 and described rotate for making the rear side of locking piece 8 lock The rectangular slide chamber 51 in axle 5 is in relative position, meanwhile, make described the first of the rear side of annular fixture 71 to insert The counterbore 56 of bar 83 and the rotation front end face of lock shaft 5 is in relative position, and then the locking piece 8 is moved in side backward And the cutting blade 7 being connected with the locking piece 8, make second inserted link 85 on rear side of the cutting blade 7 It is gradually inserted in the rectangular slide chamber 51, until in the back end surface of the second inserted link 85 and the rear side of the rectangular slide chamber 51 When wall abuts against, now, the fully-inserted interior flower of the external splines rotary shaft 84 in the back end surface of the second inserted link 85 In key rotary shaft 551 and it is connected, meanwhile, the upside top end of securing rod 853 and the upside of rectangular slide chamber 51 The lock hole 54 in inwall is in relative position, the downside bottom end of securing rod 853 and the rectangular slide chamber 51 The lock hole 54 in the inwall of downside is in relative position, now, the back end surface of annular fixture 71 with described turn The dynamic anterior end surface of lock shaft 5 offsets, meanwhile, first inserted link 83 on rear side of annular fixture 71 at utmost stretches into described In counterbore 56, now, the internal spline rotary shaft 551 is driven rotationally clockwise by the lock out motor 55, by described Internal spline rotary shaft 551 drives the external splines rotary shaft 84 rotationally clockwise, and then driven by external splines rotary shaft 84 The cam 854 rotationally clockwise, now, passes through the projection 8541 of left and right sides band respectively by the cam 854 Move the top pressure that the push rod 855 of the left and right sides promotes the securing rod 853 of upper and lower both sides to overcome the top pressure spring 857 Power, while the securing rod 853 of upper and lower both sides is gradually stretched out outside the end face of both sides up and down of second inserted link 85 and is distinguished Gradually slip into the lock hole 54 of upper and lower both sides, until as shown in Figure 9 the upside top end of the second inserted link 85 with it is upper The feeler 541 of the inner roof wall of lock hole 54 abuts against described in side, meanwhile, the downside bottom end of the second inserted link 85 is with The feeler 541 of the inner bottom wall of lock hole 54 abuts against described in side, and now, the feeler 541 of upper and lower both sides is same Shi Fasheng signals simultaneously control lock out motor 55 to stop operating, and now, the second inserted link 85 of upper and lower both sides at utmost inserts up and down In the lock hole 54 of both sides, then the second belt wheel 621 is driven to rotate by cutting motor 62, and then by the second belt wheel 621 The rotation lock shaft 5 in first pulley 52 and first pulley 52 is driven to rotate by transmission belt 622, and then by rotation lock shaft 5, which drive cutting blade 7 to rotate, realizes cutting work, then drives the regulation positive and negative rotation of threaded rod 42 by regulation motor 43, by Regulation threaded rod 42 drives regulation sliding shoe 44 to be moved along the fore-and-aft direction of guide groove 41, and then drives regulation by regulation sliding shoe 44 Positioning baffle 9 is movable, so as to realize that the cutting of different size timber positions work；Pass through when needing dismounting cutting blade 7 Lock out motor 55 is controlled, securing rod 853 is returned to initial position, then takes out locking piece 8.

The beneficial effects of the invention are as follows：

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any The change or replacement expected without creative work, it should all be included within the scope of the present invention.Therefore, it is of the invention Protection domain should be determined by the scope of protection defined in the claims.

Claims

1. a kind of machine and wood cutting, including chassis and the collet for being arranged on chassis backside top end face, it is characterised in that：Collet The support column for upwardly extending setting is fixed with the forward edge of top end face, is rotatably assorted and is connected with towards front and rear in support column The extended rotation lock shaft in direction, rotate and be provided with rectangular slide chamber, rectangular slide in extending end end face on front side of lock shaft Being rotatably assorted on rear side of chamber in inwall has internal spline rotary shaft, and internal spline rotary shaft rear side end is connected with lock out motor, locking Battery is provided with rotation lock shaft on rear side of motor, rotates the locking piece that lock shaft front is provided with sliding connection, lock Determining part includes external piece, is fixed on the round bump of external piece back end surface, the external piece being fixed on the outside of round bump rear side First inserted link of end face surrounding and the second inserted link for being fixed on round bump back end surface, the second inserted link is interior to be provided with locking transmission Chamber, locking drive cavity rear side inwall centre position, which is rotatably assorted, is connected with front and rear extended external splines rotary shaft, external splines Rotary shaft rear side end is stretched out outside the second inserted link back end surface, on front side of external splines rotary shaft extending end stretch into locking drive cavity and End is installed with cam, and inwall is symmetrically installed with guide sleeve to cam on rear side of the locking drive cavity of both sides up and down, in each guide sleeve The securing rod being extended to upper and lower both sides is slidably connected, projection, upside securing rod are arranged with left and right sides of cam It is respectively articulated with and is connected between bottom end and left side projection and downside securing rod top end and right side projection Push rod, brake stop device is symmetrically set with support column.

A kind of 2. machine and wood cutting according to claim 1, it is characterised in that：The left and right of top end face on front side of the chassis Both sides are arranged with guide groove, and front and rear extend is provided with regulation threaded rod in each guide groove, on the regulation threaded rod Screw thread is connected with regulation sliding shoe, and the regulation sliding shoe top end is fixed with regulation positioning baffle, the regulation spiral shell Rasp bar front side end is rotatably assorted with the guide groove front inner wall and is connected, and the regulation threaded rod rear side end coordinates with regulation motor Connection, the regulation motor outer surface is in inwall on rear side of the guide groove and is fixedly connected.

A kind of 3. machine and wood cutting according to claim 1, it is characterised in that：Extending end on rear side of the rotation lock shaft First pulley is fixed with, is fixed with cutting motor in the support column back end surface rotated below lock shaft, institute State and be connected with the second belt wheel on rear side of cutting motor, transmission is connected between the first pulley and second belt wheel Band.

A kind of 4. machine and wood cutting according to claim 1, it is characterised in that：The rotation lock shaft and the battery It is electrically connected with.

A kind of 5. machine and wood cutting according to claim 1, it is characterised in that：The locking piece and the rotation lock shaft Between be connected with cutting blade, the cutting blade centre position is provided with annular fixture, the annular fixture The circular locking hole that centre position is provided with to be connected with the round bump, the circular locking hole and the circle are convex The diameter of block is equal, and the annular fixture surrounding on the outside of the circular locking hole is equipped with to described first The connection through hole that inserted link is connected.

A kind of 6. machine and wood cutting according to claim 1, it is characterised in that：The upside guide sleeve and the cam it Between the locking drive cavity on rear side of the locking drive cavity between inwall and the downside guide sleeve and the cam Limited block is all provided with rear side inwall.

A kind of 7. machine and wood cutting according to claim 1, it is characterised in that：Extending end on front side of the rotation lock shaft End face surrounding is equipped with the counterbore to be connected with first inserted link, and the inwall up and down of the rectangular slide intracavitary is symmetrical Provided with lock hole, feeler is equipped with the upside lock hole inner roof wall and downside the lock hole inner bottom wall, it is described Feeler is electrically connected with the lock out motor.

A kind of 8. machine and wood cutting according to claim 1, it is characterised in that：Extension is passed through at the top of the securing rod of upside The top end face of second inserted link and sliding connection are worn, downside securing rod bottom extension is inserted through described second The bottom end face of bar and sliding connection, the upside securing rod bottom end both sides and the downside securing rod top end The left and right sides is equipped with projection, between the projection and the upside guide sleeve of the upside securing rod bottom end both sides The upside locking rod outer surface and the projection and the downside guide sleeve of the downside securing rod top end both sides Between the downside locking rod outer surface around being provided with top pressure spring.

A kind of 9. machine and wood cutting according to claim 1, it is characterised in that：The brake stop device includes being fixedly installed on The brake power failure machine of the support column madial wall, the brake power failure machine are connected with threaded rod close to the first pulley side, The threaded rod is connected with screw shell close to first pulley side screw thread, and the screw shell is close to described first Belt wheel side is fixedly installed brake and stops pawl.