CN205344882U - A positive and negative fender mechanism for double drum grinder - Google Patents
A positive and negative fender mechanism for double drum grinder Download PDFInfo
- Publication number
- CN205344882U CN205344882U CN201620053261.4U CN201620053261U CN205344882U CN 205344882 U CN205344882 U CN 205344882U CN 201620053261 U CN201620053261 U CN 201620053261U CN 205344882 U CN205344882 U CN 205344882U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- gear
- power transmission
- friction
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A positive and negative fender mechanism for double drum grinder, including the shell body with establish the manual switching -over device in the shell body, the shell body internal rotation is equipped with first transmission shaft, the secondary drive axle, third transmission shaft and fourth transmission shaft, first transmission shaft and fourth transmission shaft are with the axial setting, be equipped with first gear on the first transmission shaft, the epaxial second gear that is equipped with of secondary drive, be equipped with third driving gear and the 3rd driven gear on the third transmission shaft, be equipped with the fourth gear on the fourth transmission shaft, fourth transmission shaft left end portion is connected with manual switching -over device, the second gear respectively with first gear and third initiative gear engagement, the 3rd driven gear and fourth gear engagement. The utility model discloses the reliable operation, easy and simple to handle, the security is high, application scope is wide, positive and negative transportation line stabilization, during the switching -over, and though corotation, idle running, reversal only need operate the reversing bar can, the operation is very simple.
Description
Technical field
This utility model belongs to the traction apparatus technical field in cableway transport of freight transport, particularly relates to a kind of positive and negative retaining device twisting grinding machine for two-fold cylinder.
Background technology
Current power transmission circuit develops to supertension, extra-high voltage direction.Tower body is uprised by low, tower material changes from small to big, no man's land is goed deep into by busiest section in tower position, the freight volume of group tower material is increasing, transport capacity is also improving constantly, conventional manpower, animal power transport oneself can not satisfy condition complex area huge amounts of material flowing, the particularly area such as mountain area, forest land cableway transport oneself become each unit in charge of construction means of transport first.In China, ground part Electric Power Transmission & transformation Company have accumulated a lot of construction experiences in this respect, and easy freight ropeway almost each job site can be seen, and erection uses all very convenient.In the Large Diameter Pipeline oil in the muddy region in knob, mountain area and marsh, natural gas line construction operation, cableway transport mode is simple equally, convenient, fast, efficient.Filled in the sea to grow grain in recent years in engineering, because of road conditions and mechanical transport not convenient time, adopt cableway transport also to achieve and well expect purpose.Traction machine, as the major impetus of cableway transport, is requisite equipment in every cableway transport.Along with national basis construction continues to increase, when various geographical relief, transport is more and more.Cableway transport amount is being continuously increased, and the industrialization of traction machine produces extremely urgent.
Existing strand grinding machine or traction machine have a variety of, the utility model patent that the such as patent No. is ZL201520481388.1 discloses a kind of mechanical type traction machine, its commutation is what to be undertaken by the changement on change speed gear box, reverse gear is utilized to realize reversion, but the rotating speed of reversion is different from the rotating speed of rotating forward after commutation, make the pull strength required for forward and reverse different, when actual pull strength is difficult to meet the pull strength being currently needed for, it is easily damaged equipment or has an accident, thus causing damage, and operate inconvenience；Additionally in equipment running process, moment of torsion is not limited, it is possible to can run when over loading, gross overload accident occurs.
Utility model content
This utility model is in order to solve weak point of the prior art, it is provided that a kind of reliable operation, the positive and negative retaining device for two-fold cylinder strand grinding machine that easy and simple to handle, safety is high, applied widely, rotating is stable.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that the positive and negative retaining device twisting grinding machine for two-fold cylinder, including shell body and the hand reversing gears being located in shell body, rotate in shell body and be provided with the first power transmission shaft, second driving shaft, 3rd power transmission shaft and the 4th power transmission shaft, first power transmission shaft left end passes shell body left surface, first power transmission shaft and the 4th coaxial setting of power transmission shaft, first power transmission shaft right part in axial direction offers groove, 4th power transmission shaft left end is extend in the groove of the first power transmission shaft right-hand member and is rotationally connected by bearing with the first power transmission shaft, 4th power transmission shaft right-hand member stretches out shell body, first power transmission shaft is provided with the first gear, second driving shaft is provided with the second gear, 3rd power transmission shaft is provided with the 3rd driving gear and the 3rd driven gear, 4th power transmission shaft is provided with the 4th gear, first gear, second gear, 3rd driving gear, 3rd driven gear and the 4th gear are arranged in shell body, first gear right side is provided with the first friction public affairs dish, 4th gear left side is provided with the second friction public affairs dish, 4th power transmission shaft left part is connected with hand reversing gears, second gear engages with the first gear and the 3rd driving gear respectively, 3rd driven gear and the engagement of the 4th gear.
Hand reversing gears includes pin axle, pin axle left end is provided with reversing bar, it is provided with screw thread in the middle part of pin axle and threaded has screw, screw is provided with shift fork, 4th power transmission shaft left part is arranged with the first lining, between first lining inwall and the 4th power transmission shaft left side, spline connects, first lining can slide axially along the 4th power transmission shaft, first lining is arranged with the second lining, first liner outer wall and the second lining inwall interference fit, second two ends, lining left and right is fixedly connected with the first friction stamper and the second friction stamper respectively through screw, second lining is arranged with the 3rd lining, second liner outer wall and the 3rd lining inwall interference fit, being arranged with in the middle part of 3rd lining with the 3rd lining is the spacing ring of integrative-structure, it is provided with left thrust bearing between first friction stamper and spacing ring, left thrust bearing left surface and the first friction stamper right flank top press-fit, left thrust bearing right flank and the top press-fit of spacing ring left surface, it is provided with right thrust bearing between second friction stamper and spacing ring, right thrust bearing left surface and the top press-fit of spacing ring right flank, right thrust bearing right flank and the second friction stamper left surface top press-fit, the power drive end of shift fork is set on the 3rd lining and between left thrust bearing and right thrust bearing, first friction stamper moves axially to the left and forms friction pair with the first public dish of friction, second friction stamper moves axially to the right and forms friction pair with the second public dish of friction.
Adopt technique scheme, two-fold cylinder strand grinding machine also includes base, base is provided with the electromotor, speed change gear, urgent outer brake unit and the drive system that are in transmission connection successively, being provided with torque limiter between speed change gear and urgent outer brake unit on base, the clutch end of drive system is connected with the first reel and the second reel respectively；This utility model is in transmission connection and twists between electromotor and the speed change gear of grinding machine at two-fold cylinder, the clutch end of the first power transmission shaft left end in this utility model and electromotor is in transmission connection, and the power intake of the 4th power transmission shaft right-hand member in this utility model and speed change gear is in transmission connection.
Torque limiter includes left half axle and right axle shaft, the clutch end of left half axle and speed change gear is in transmission connection, the right part of right axle shaft is provided with the connection dish that the power intake with urgent outer brake unit is in transmission connection, left half axle and right axle shaft are respectively equipped with left half sprocket wheel and right half sprocket wheel, left half axle is provided with adjusting nut and is positioned at the frictional disk on the right side of adjusting nut, adjusting nut is threaded on left half axle, butterfly spring it is provided with between adjusting nut and frictional disk, left half sprocket wheel and right half sprocket wheel are fitted and pass through the chain drive connection of annular, the left surface of left half sprocket wheel is provided with the first friction backing plate, the right side rubbing surface of frictional disk and the first friction backing plate left surface top press contacts form friction pair；
Drive system includes transmission case and the one-way braking means being located on transmission case, rotate in transmission case and be provided with the 5th power transmission shaft, 6th power transmission shaft and the 7th power transmission shaft, one-way braking means includes brake axle and braking dish, 5th power transmission shaft left part is provided with screw thread, brake axle is hollow shaft structure, braking sleeve is located on the 5th power transmission shaft and is connected with the 5th drive axis, brake axle is provided with unilateral bearing, braking dish is threaded in the 5th power transmission shaft left part, 5th power transmission shaft left end is provided with stop nut, braking dish is between stop nut and brake axle, brake and side of facing left is fixedly connected with the 8th power transmission shaft, the left side of brake axle is provided with the second friction backing plate, braking dish moves axially to the right and forms friction pair with the second friction backing plate, 8th power transmission shaft, brake axle and the 5th power transmission shaft are coaxially set, 5th power transmission shaft is provided with the 5th gear, 6th power transmission shaft is provided with the 6th driving gear and the 6th driven gear, 7th power transmission shaft is provided with the 7th gear and is positioned at the output driving gear outside transmission case, 5th gear, 6th driving gear, 6th driven gear and the 7th gear are respectively positioned on inside transmission case, first reel and coaxial the first input driven gear and second that is connected to of the second reel input driven gear, 5th gear and the engagement of the 6th driving gear, 6th driven gear and the engagement of the 7th gear, output driving gear inputs driven gear respectively with first and the second input driven gear engages, first reel and the first input driven gear are structure as a whole, second reel and the second input driven gear are structure as a whole；
Urgent outer brake unit includes the coaxial clutch being located on drive system power shaft, clutch is coaxially provided with turning collar and static circle, static circle is fixed on transmission case side, one end semicircular brake scotch of hinged two panels it is provided with in turning collar, it is connected to helical spring between the two panels brake scotch other end, being respectively equipped with outside two panels brake scotch can with the friction plate of turning collar contact internal walls, and the two panels brake scotch one end at helical spring place is provided with the action bars for stretch-draw two panels brake scotch.
Adopting technique scheme, two-fold cylinder strand grinding machine has the advantage that
1, adopt positive and negative retaining device, when rotating forward, stir reversing bar, due between pin axle and screw for threadeding, screw drives shift fork to be moved to the left, shift fork is extruded left thrust bearing to the left by the 3rd lining and is promoted the first friction stamper to drive the second lining and the first lining to slide axially to the left, first friction stamper and the public dish of the first friction form friction pair, driven by engine the first drive axis, owing to the first lining and the 4th power transmission shaft are connected by spline, first power transmission shaft is by the first dynamic first friction stamper and the 4th drive axis of the public dribbling of friction, 4th power transmission shaft imparts power to speed change gear；When reversion, stir reversing bar, due between pin axle and screw for threadeding, screw drives shift fork to move right, shift fork is extruded to the right right thrust bearing by the 3rd lining and is promoted the second friction stamper to drive the second lining and the first lining to slide axially to the right, second friction stamper and the public dish of the second friction form friction pair, driven by engine the first drive axis, first power transmission shaft is rotated by the first gear and the second gear driven second driving shaft, second driving shaft drives the 3rd drive axis by the second gear and the 3rd driving gear, 3rd power transmission shaft drives the 4th pinion rotation by the 3rd driven gear, owing to the first lining and the 4th power transmission shaft are connected by spline, 4th gear is by the second dynamic second friction stamper and the 4th drive axis of the public dribbling of friction, thus realizing the reversion of the 4th power transmission shaft, 4th power transmission shaft imparts power to speed change gear；When shift fork is centrally located, equipment is in idling conditions, by positive and negative retaining device, make running speed when rotating and reverse identical, ensure that pull strength when rotating and reverse is identical, it is to avoid pull strength difference during owing to rotating and reverse causes the situation that pull strength is not enough and device damage occurs occur；During commutation, no matter rotating forward, idle running, reversion only need to operate reversing bar, operate very simple；
2, torque limiter is adopted, compress butterfly spring by adjusting nut and adjust the frictional disk frictional force to left half sprocket wheel, the right side rubbing surface of frictional disk and the first friction backing plate left surface top press contacts form friction pair, if loading moment exceedes setting moment of torsion, frictional disk and the first friction backing plate there will be skidding, so that power can not pass through left half sprocket wheel and right half sprocket wheel transmission is gone down, thus ensureing that other structural members are injury-free, equipment is maintained at work in the torque range of safety, can effectively control overload operation, it is to avoid the generation of gross overload accident；
3, electromotor drives speed change gear to rotate by positive and negative retaining device, when rotating forward, transmission output shaft drives the 8th drive axis, 8th power transmission shaft drives disc rotation, owing to being threaded between braking dish and the 5th power transmission shaft, braking dish moves to right along the 5th drive shaft axis direction, braking dish and the second friction backing plate form friction pair, braking dish is rotated by the dynamic brake axle of the second friction pad strip, unilateral bearing on brake axle is not intended to rotate, 8th power transmission shaft is by braking dynamic 5th drive axis of dribbling, 5th power transmission shaft drives the 6th drive axis by the 5th gear and the 6th driving gear, 6th power transmission shaft passes through the 6th driven gear and the 7th gear driven the 7th drive axis, 7th power transmission shaft by driving the first reel and the second reel rotating in same direction by the output driving gear being positioned at outside transmission case；When reversion, transmission output shaft drives the 8th power transmission shaft reversion, 8th power transmission shaft drives disc rotation, owing to being threaded between braking dish and the 5th power transmission shaft, braking dish moves to left along the 5th drive shaft axis direction and extrudes stop nut to the left, now, braking dish separates with brake axle, unilateral bearing is inoperative, 8th power transmission shaft is by braking dynamic 5th drive axis of dribbling, 5th power transmission shaft drives the 6th drive axis by the 5th gear and the 6th driving gear, 6th power transmission shaft passes through the 6th driven gear and the 7th gear driven the 7th drive axis, 7th power transmission shaft is by driving the first reel and the second reel to realize reverse rotating in same direction by the output driving gear being positioned at outside transmission case；When, in the process of equipment operation, when driving the 5th power transmission shaft reversion owing to load is excessive by two-fold cylinder, braking dish moves to right along the 5th drive shaft axis direction and press against brake axle rotation, now, the rotation of unilateral bearing restriction brake axle, thus realizing braking；When one-way braking means is malfunctioning, by urgent outer brake unit, promoting action bars, helical spring is stretched, two panels brake scotch expands outwardly around hinged end, friction plate outside two panels brake scotch and the extruding of turning collar contact internal walls, thus can brake turning collar so that the 5th power transmission shaft stops operating, so that the first reel and the second reel stop operating, after loosing one's grip, under the effect of helical spring, two panels brake scotch and friction plate reset；Two-fold cylinder strand grinding machine adopts Double-safety braking device, one-way braking means it is provided with in transmission case, this device can ensure that equipment is when hoisting operation, do not have skidding, even if one-way braking means is malfunctioning, being additionally provided with a set of urgent outer brake unit outside transmission case, operator can make the first reel and the second reel shut down smoothly.
Accompanying drawing explanation
Fig. 1 is the structural representation of two-fold cylinder strand grinding machine；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the inside expanded view of Fig. 2；
Fig. 4 is the enlarged drawing that in Fig. 3, A goes out；
Fig. 5 is the structural representation of torque limiter in Fig. 1；
Fig. 6 is the structural representation of drive system in Fig. 1；
Fig. 7 is the inside expanded view of drive system；
Fig. 8 is the structural representation of urgent outer brake unit in Fig. 1；
Fig. 9 is A-A sectional view in Fig. 7.
Detailed description of the invention
As shown in figs 1-9, two-fold cylinder strand grinding machine, including base 1, base 1 is provided with the electromotor 2, speed change gear 3, urgent outer brake unit 4 and the drive system 5 that are in transmission connection successively, base 1 is provided with positive and negative retaining device 6 between electromotor 2 and speed change gear 3, being provided with torque limiter 7 between speed change gear 3 and urgent outer brake unit 4 on base 1, the clutch end of drive system 5 is connected with the first reel 8 and the second reel 9 respectively.
Positive and negative retaining device 6 includes shell body 10 and the hand reversing gears being located in shell body 10, rotate in shell body 10 and be provided with the first power transmission shaft 12, second driving shaft 13, 3rd power transmission shaft 14 and the 4th power transmission shaft 15, first power transmission shaft 12 left end passes shell body 10 left surface and the clutch end with electromotor 2 is in transmission connection, first power transmission shaft 12 and the 4th coaxial setting of power transmission shaft 15, first power transmission shaft 12 right part in axial direction offers groove, 4th power transmission shaft 15 left end is extend in the groove of the first power transmission shaft 12 right-hand member and is rotationally connected by bearing with the first power transmission shaft 12, 4th power transmission shaft 15 right-hand member stretches out shell body 10 and the power intake with speed change gear 3 is in transmission connection, first power transmission shaft 12 is provided with the first gear 19, second driving shaft 13 is provided with the second gear 20, 3rd power transmission shaft 14 is provided with the 3rd driving gear 21 and the 3rd driven gear 22, 4th power transmission shaft 15 is provided with the 4th gear 23, first gear 19, second gear 20, 3rd driving gear 21, 3rd driven gear 22 and the 4th gear 23 are arranged in shell body 10, first gear 19 right side is provided with the first friction public affairs dish 24, 4th gear 23 left side is provided with the second friction public affairs dish 25, 4th power transmission shaft 15 left part is connected with hand reversing gears, second gear 20 engages with the first gear 19 and the 3rd driving gear 21 respectively, 3rd driven gear 22 engages with the 4th gear 23.
Hand reversing gears includes pin axle 11, pin axle 11 left end is provided with reversing bar 16, it is provided with screw thread in the middle part of pin axle 11 and threaded has screw 17, screw 17 is provided with shift fork 18, 4th power transmission shaft 15 left part is arranged with the first lining 57, between first lining 57 inwall and the 4th power transmission shaft 15 left side, spline connects, first lining 57 can slide axially along the 4th power transmission shaft 15, first lining 57 is arranged with the second lining 58, first lining 57 outer wall and the second lining 58 inwall interference fit, second lining about 58 two ends are fixedly connected with the first friction stamper 26 and the second friction stamper 27 respectively through screw, second lining 58 is arranged with the 3rd lining 59, second lining 58 outer wall and the 3rd lining 59 inwall interference fit, 3rd lining 59 center outer surface is provided with and the 3rd lining 59 spacing ring 60 in integrative-structure, it is provided with left thrust bearing 61 between first friction stamper 26 and spacing ring 60, left thrust bearing 61 left surface and the first friction stamper 26 right flank top press-fit, left thrust bearing 61 right flank and the top press-fit of spacing ring 60 left surface, it is provided with right thrust bearing 62 between second friction stamper 27 and spacing ring 60, right thrust bearing 62 left surface and the top press-fit of spacing ring 60 right flank, right thrust bearing 62 right flank and the second friction stamper 27 left surface top press-fit, the power drive end of shift fork 18 is set on the 3rd lining 59 and between left thrust bearing 61 and right thrust bearing 62, first friction stamper 26 moves axially to the left and forms friction pair with the first public dish 24 of friction, second friction stamper 27 moves axially to the right and forms friction pair with the second public dish 25 of friction.
Torque limiter 7 includes left half axle 28 and right axle shaft 29, the clutch end of left half axle 28 and speed change gear 3 is in transmission connection, the right part of right axle shaft 29 is provided with the connection dish 63 that the power intake with urgent outer brake unit 4 is in transmission connection, left half axle 28 and right axle shaft 29 are respectively equipped with left half sprocket wheel 30 and right half sprocket wheel 64, left half axle 28 is provided with adjusting nut 31 and is positioned at the frictional disk 32 on the right side of adjusting nut 31, adjusting nut 31 is threaded on left half axle 28, butterfly spring 33 it is provided with between adjusting nut 31 and frictional disk 32, the chain 67 that left half sprocket wheel 30 and right half sprocket wheel 64 paste merga pass annular is in transmission connection, the left surface of left half sprocket wheel 30 is provided with the first friction backing plate 65, the right side rubbing surface of frictional disk 32 and the first friction backing plate 65 left surface top press contacts form friction pair.
Drive system 5 includes transmission case 34 and the one-way braking means being located on transmission case 34, rotate in transmission case 34 and be provided with the 5th power transmission shaft 35, 6th power transmission shaft 36 and the 7th power transmission shaft 37, one-way braking means includes brake axle 38 and braking dish 39, 5th power transmission shaft 35 left part is provided with screw thread, brake axle 38 is hollow shaft structure, brake axle 38 is set on the 5th power transmission shaft 35 and is rotationally connected with the 5th power transmission shaft 35, brake axle 38 is provided with unilateral bearing 40, braking dish 39 is threaded in the 5th power transmission shaft 35 left part, 5th power transmission shaft 35 left end is provided with stop nut 41, braking dish 39 is between stop nut 41 and brake axle 38, braking dish 39 left surface is fixedly connected with the 8th power transmission shaft 42, the left side of brake axle 38 is provided with the second friction backing plate 66, braking dish 39 moves axially to the right and forms friction pair with the second friction backing plate 66, 8th power transmission shaft 42, brake axle 38 and the 5th power transmission shaft 35 are coaxially set, 5th power transmission shaft 35 is provided with the 5th gear 43, 6th power transmission shaft 36 is provided with the 6th driving gear 44 and the 6th driven gear 45, 7th power transmission shaft 37 is provided with the 7th gear 46 and is positioned at the output driving gear 47 outside transmission case 34, 5th gear 43, 6th driving gear 44, it is internal that 6th driven gear 45 and the 7th gear 46 are respectively positioned on transmission case 34, first reel 8 and the coaxial first input driven gear 48 and second that is connected to of the second reel 9 input driven gear 49, 5th gear 43 engages with the 6th driving gear 44, 6th driven gear 45 engages with the 7th gear 46, output driving gear 47 inputs driven gear 48 respectively with first and the second input driven gear 49 engages, first reel 8 and the first input driven gear 48 are structure as a whole, second reel 9 and the second input driven gear 49 are structure as a whole.
Urgent outer brake unit 4 includes the coaxial clutch 50 being located on drive system 5 power shaft, clutch 50 is coaxially provided with turning collar 51 and static circle 52, static circle 52 is fixed on transmission case 34 side, the semicircular brake scotch 53 of the hinged two panels in one end it is provided with in turning collar 51, it is connected to helical spring 54 between two panels brake scotch 53 other end, being respectively equipped with outside two panels brake scotch 53 can with the friction plate 55 of turning collar 51 contact internal walls, and two panels brake scotch 53 one end at helical spring 54 place is provided with the action bars 56 for stretch-draw two panels brake scotch 53.
Wherein, electromotor 2 and speed change gear 3 are existing mature technology, and concrete structure repeats no more.
Two-fold cylinder strand grinding machine is when work uses, when rotating forward, stir reversing bar 16, due between pin axle 11 with screw 17 for threadeding, screw 17 drives shift fork 18 to be moved to the left, shift fork 18 is extruded left thrust bearing 61 to the left by the 3rd lining 59 and is promoted the first friction stamper 26 to drive the second lining 58 and the first lining 57 to slide axially to the left, first friction stamper 26 and the public dish 24 of the first friction form friction pair, electromotor 2 drives the first power transmission shaft 12 to rotate, owing to the first lining 57 and the 4th power transmission shaft 15 are connected by spline, first power transmission shaft 12 drives the first friction stamper 26 and the 4th power transmission shaft 15 to rotate by the first public dish 24 of friction, 4th power transmission shaft 15 imparts power to speed change gear 3, speed change gear 3 output shaft drives the 8th power transmission shaft 42 to rotate, 8th power transmission shaft 42 drives braking dish 39 to rotate, due between braking dish 39 with the 5th power transmission shaft 35 for threadeding, braking dish 39 moves to right along the 5th power transmission shaft 35 axis direction, braking dish 39 and the second friction backing plate 66 form friction pair, braking dish 39 drives brake axle 38 to rotate by the second friction backing plate 66, unilateral bearing 40 on brake axle 38 is not intended to rotate, 8th power transmission shaft 42 drives the 5th power transmission shaft 35 to rotate by braking dish 39, 5th power transmission shaft 35 drives the 6th power transmission shaft 36 to rotate by the 5th gear 43 and the 6th driving gear 44, 6th power transmission shaft 36 drives the 7th power transmission shaft 37 to rotate by the 6th driven gear 45 and the 7th gear 46, 7th power transmission shaft 37 is by driving the first reel 8 and the second reel 9 rotating in same direction by the output driving gear 47 being positioned at outside transmission case 34；When reversion, stir reversing bar 16, due between pin axle 11 with screw 17 for threadeding, screw 17 drives shift fork 18 to move right, shift fork 18 is extruded to the right right thrust bearing 62 by the 3rd lining 59 and is promoted the second friction stamper 27 to drive the second lining 58 and the first lining 57 to slide axially to the right, second friction stamper 27 and the public dish 25 of the second friction form friction pair, electromotor 2 drives the first power transmission shaft 12 to rotate, first power transmission shaft 12 drives second driving shaft 13 to rotate by the first gear 19 and the second gear 20, second driving shaft 13 drives the 3rd power transmission shaft 14 to rotate by the second gear 20 and the 3rd driving gear 21, 3rd power transmission shaft 14 drives the 4th gear 23 to rotate by the 3rd driven gear 22, owing to the first lining 57 and the 4th power transmission shaft 15 are connected by spline, 4th gear 23 drives the second friction stamper 27 and the 4th power transmission shaft 15 to rotate by the second public dish 25 of friction, thus realizing the reversion of the 4th power transmission shaft 15, 4th power transmission shaft 15 imparts power to speed change gear 3, speed change gear 3 output shaft drives the 8th power transmission shaft 42 to reverse, 8th power transmission shaft 42 drives braking dish 39 to rotate, due between braking dish 39 with the 5th power transmission shaft 35 for threadeding, braking dish 39 moves to left along the 5th power transmission shaft 35 axis direction and extrudes stop nut 41 to the left, now, braking dish 39 separates with brake axle 38, unilateral bearing 40 is inoperative, 8th power transmission shaft 42 drives the 5th power transmission shaft 35 to rotate by braking dish 39, 5th power transmission shaft 35 drives the 6th power transmission shaft 36 to rotate by the 5th gear 43 and the 6th driving gear 44, 6th power transmission shaft 36 drives the 7th power transmission shaft 37 to rotate by the 6th driven gear 45 and the 7th gear 46, 7th power transmission shaft 37 is by driving the first reel 8 and the second reel 9 to realize reverse rotating in same direction by the output driving gear 47 being positioned at outside transmission case 34；When in the process of equipment operation, when driving the 5th power transmission shaft 35 to reverse owing to load is excessive by two-fold cylinder, braking dish 39 moves to right along the 5th power transmission shaft 35 axis direction and press against brake axle 38 and rotate, now, unilateral bearing 40 limits the rotation of brake axle 38, thus realizing braking；When shift fork 18 is centrally located, equipment is in idling conditions, by positive and negative retaining device 6 so that positive and negative gear running speed is identical, and positive and negative gear pull strength is identical；
Adopt torque limiter 7, compress butterfly spring 33 by adjusting nut 31 and adjust the frictional disk 32 frictional force to left half sprocket wheel 30, the right side rubbing surface of frictional disk 32 and the first friction backing plate 65 left surface top press contacts form friction pair, if loading moment exceedes setting moment of torsion, frictional disk 32 and the first friction backing plate 65 there will be skidding, so that power can not pass through left half sprocket wheel 30 and right half sprocket wheel 64 transmission is gone down, thus ensureing that other structural members are injury-free, equipment is maintained at work in the torque range of safety, can effectively control overload operation, avoid the generation of gross overload accident；When one-way braking means is malfunctioning, by urgent outer brake unit 4, promoting action bars 56, helical spring 54 is stretched, two panels brake scotch 53 expands outwardly around hinged end, friction plate 55 outside two panels brake scotch 53 and the extruding of turning collar 51 contact internal walls, thus can brake turning collar 51 so that the 5th power transmission shaft 35 stops operating, so that the first reel 8 and the second reel 9 stop operating, after loosing one's grip, under the effect of helical spring 54, two panels brake scotch 53 and friction plate 55 reset.
Shape of the present utility model, material, structure etc. are not done any pro forma restriction by the present embodiment; every any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, belongs to the protection domain of technical solutions of the utility model.
Claims (2)
1. for the positive and negative retaining device of two-fold cylinder strand grinding machine, it is characterized in that: include shell body and the hand reversing gears being located in shell body, rotate in shell body and be provided with the first power transmission shaft, second driving shaft, 3rd power transmission shaft and the 4th power transmission shaft, first power transmission shaft left end passes shell body left surface, first power transmission shaft and the 4th coaxial setting of power transmission shaft, first power transmission shaft right part in axial direction offers groove, 4th power transmission shaft left end is extend in the groove of the first power transmission shaft right-hand member and is rotationally connected by bearing with the first power transmission shaft, 4th power transmission shaft right-hand member stretches out shell body the first power transmission shaft and is provided with the first gear, second driving shaft is provided with the second gear, 3rd power transmission shaft is provided with the 3rd driving gear and the 3rd driven gear, 4th power transmission shaft is provided with the 4th gear, first gear, second gear, 3rd driving gear, 3rd driven gear and the 4th gear are arranged in shell body, first gear right side is provided with the first friction public affairs dish, 4th gear left side is provided with the second friction public affairs dish, 4th power transmission shaft left part is connected with hand reversing gears, second gear engages with the first gear and the 3rd driving gear respectively, 3rd driven gear and the engagement of the 4th gear.
2. the positive and negative retaining device twisting grinding machine for two-fold cylinder according to claim 1, it is characterized in that: hand reversing gears includes pin axle, pin axle left end is provided with reversing bar, it is provided with screw thread in the middle part of pin axle and threaded has screw, screw is provided with shift fork, 4th power transmission shaft left part is arranged with the first lining, between first lining inwall and the 4th power transmission shaft left side, spline connects, first lining can slide axially along the 4th power transmission shaft, first lining is arranged with the second lining, first liner outer wall and the second lining inwall interference fit, second two ends, lining left and right is fixedly connected with the first friction stamper and the second friction stamper respectively through screw, second lining is arranged with the 3rd lining, second liner outer wall and the 3rd lining inwall interference fit, being arranged with in the middle part of 3rd lining with the 3rd lining is the spacing ring of integrative-structure, it is provided with left thrust bearing between first friction stamper and spacing ring, left thrust bearing left surface and the first friction stamper right flank top press-fit, left thrust bearing right flank and the top press-fit of spacing ring left surface, it is provided with right thrust bearing between second friction stamper and spacing ring, right thrust bearing left surface and the top press-fit of spacing ring right flank, right thrust bearing right flank and the second friction stamper left surface top press-fit, the power drive end of shift fork is set on the 3rd lining and between left thrust bearing and right thrust bearing, first friction stamper moves axially to the left and forms friction pair with the first public dish of friction, second friction stamper moves axially to the right and forms friction pair with the second public dish of friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053261.4U CN205344882U (en) | 2016-01-20 | 2016-01-20 | A positive and negative fender mechanism for double drum grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053261.4U CN205344882U (en) | 2016-01-20 | 2016-01-20 | A positive and negative fender mechanism for double drum grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205344882U true CN205344882U (en) | 2016-06-29 |
Family
ID=56176943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620053261.4U Expired - Fee Related CN205344882U (en) | 2016-01-20 | 2016-01-20 | A positive and negative fender mechanism for double drum grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205344882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550507A (en) * | 2019-09-09 | 2019-12-10 | 衡阳泰豪通信车辆有限公司 | Walking type field operation optical cable winding and unwinding frame |
-
2016
- 2016-01-20 CN CN201620053261.4U patent/CN205344882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550507A (en) * | 2019-09-09 | 2019-12-10 | 衡阳泰豪通信车辆有限公司 | Walking type field operation optical cable winding and unwinding frame |
| CN110550507B (en) * | 2019-09-09 | 2024-04-19 | 衡阳泰豪通信车辆有限公司 | Walking type field operation optical cable winding and unwinding frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203807804U (en) | Retarding clutch for washing machine | |
| CN104944304A (en) | Double-winding-drum transmission device of motor-driven winch | |
| CN205344882U (en) | A positive and negative fender mechanism for double drum grinder | |
| CN205327059U (en) | Double drum grinder | |
| CN205327060U (en) | Tractor that overloads is prevented to mechanical type | |
| CN103641011B (en) | A kind of performance-oriented free off the hook hoisting mechanism | |
| CN205365597U (en) | A unilateral system dynamic formula transmission system for double drum grinder | |
| CN205344883U (en) | A transmission that is used for mechanical type to prevent tractor that overloads | |
| CN105564444B (en) | Two-fold cylinder is twisted machine | |
| CN204801772U (en) | Mechanical type tractor | |
| CN208831611U (en) | A kind of dual input towing gear | |
| CN202429897U (en) | Driving device for crane | |
| CN204873653U (en) | Double drum flexibly twists and grinds transmission | |
| CN204739164U (en) | Electric block reduction gear | |
| CN105297815A (en) | Hybrid-power hydraulic excavator | |
| CN201659877U (en) | Clutch type output mechanism of gear shift driving wheel hub of electric vehicle | |
| CN209616885U (en) | A kind of vehicle driving driving device of achievable wheel independent control | |
| CN102829162A (en) | Traction engine | |
| CN202768788U (en) | Dragger | |
| CN106939930A (en) | Automatic gear shift transmission device | |
| CN102454362A (en) | Gear box floating structure of drilling machine power head | |
| CN206426761U (en) | A kind of drive axle of excavator | |
| CN202729676U (en) | Reversible hoisting machine using internal combustion engine as power source | |
| CN207683329U (en) | Electronic automobile-used magnetorheological fluid clutch driver | |
| CN203126523U (en) | Power driving system for forklift |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20210120 |