CN109990176A

CN109990176A - The telescopic display screen of the driving matrix of single machine

Info

Publication number: CN109990176A
Application number: CN201910366494.8A
Authority: CN
Inventors: 张铭勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-04
Filing date: 2019-05-04
Publication date: 2019-07-09

Abstract

The invention discloses the telescopic display screens of the driving matrix of single machine.The display screen includes fixed part, fixed part is equipped with the first cavity of the hatch frame that several rectangular arrays are controlled, in each first cavity, one base is fixed on the leading flank of foundation frame, one commutation telescopic device is installed on each base, the output nut movable part connecting of commutation telescopic device, a movable part is placed in each first cavity simultaneously, each movable part movable frame leading flank fixes a display screen unit, driving motor drives all drive shafts to rotate at the same speed in the same direction by synchronous belt, the telescopic device that commutates drives each display screen unit that different time is presented, different location expanding-contracting action, to form continually changing active screen.There is the present invention driving portion to be provided only with a driving motor, and at low cost, structure is simple, and the commutation telescopic device being serially connected is the effect of modular product.

Description

The telescopic display screen of the driving matrix of single machine

Technical field

The present invention relates to telescopic display screens, the in particular to telescopic display screen of the driving matrix of single machine.

Background technique

The telescopic display screen of matrix is numerous in showground, indoor and outdoor advertisement screen, airport station and other public situations etc. Media releasing shows place popular, using accurate space-time combination control technology, effectively extends visual angle space, more pictures are same Ornamental dead zone is thoroughly eliminated in step display, while dynamic display screen can produce more kinds of complicated telescopic moving effects, can more inhale Induce one eyeball and attention.

The telescopic display screen of the matrix applied at present has matched a driving device to each telescopic unit of matrix, Then in a telescopic display screen of matrix, have many platform driving devices working, have a disadvantage in that: installation and maintenance are inconvenient, significantly Increase cost of manufacture and operating cost.

Summary of the invention

One or more to solve the above-mentioned problems, the present invention provides the telescopic display screens of the driving matrix of single machine.

According to an aspect of the present invention, the telescopic display screen of the driving matrix of the single machine includes fixed part, movable part, changes To telescopic device and driving portion,

Fixed part includes side frame, base and foundation frame, and side frame is vertically connected on foundation frame leading flank, is formed among side frame First cavity of the hatch frame for having several rectangular arrays to control, in each first cavity, a base is fixed on basis The leading flank of frame, while a movable part is placed in each first cavity,

Movable part includes movable frame, and nut seat is fixed in movable frame, and movable frame two sides are symmetrically fixed with interior limit guide wheel, Interior limit guide wheel is rolled along the first cavity two side walls tandem, and vertical plane fixes a display screen list before each movable frame Member, several display screen units that can be moved forward and backward, which are arranged in a matrix, constitutes the telescopic display screen of matrix,

One commutation telescopic device is installed, specifically: the telescopic device that commutates includes body, input shaft, defeated on each base Shaft and output nut, body press input shaft horizontality, are vertically fixed on front side of base, and the two neighboring commutation in left and right is flexible The input shaft of device is end-to-end, and forms series connection, and output shaft is that phase axle sleeve connects with output nut, and output nut is fixed on On nut seat centre bore,

Driving portion includes several drive shafts, driving motor, several double synchronous pulleys, mounting base and several synchronizations Band, in one drive shaft of input axis connection of the commutation telescopic device outermost end of each horizontal series, at one of central part Axis connection driving motor is driven, double synchronous pulleys of a key connection, neighbouring double synchronous belts are cased on each driving motor Wheel is connected by synchronous belt, and driving motor is fixed on foundation frame by mounting base,

One driving motor drives all drive shafts in the same direction by several double synchronous pulleys and synchronous belt passing movement Synchronized rotation, drive shaft drives the synchronized rotation in the same direction together of all concatenated input shafts again, while controlling the flexible dress of all commutations It sets and enters motion state, each commutation telescopic device can drive respectively output nut, and the movement being fixed thereon respectively Frame carries out static or forward or moves backward state, to make to be mounted on when each display screen unit is presented different on movable frame Between, the movement of the retracted position of different location, to form continually changing active screen.The beneficial effect is that: first, driving Portion is provided only with a driving motor, and at low cost, structure is simple, and installation and debugging is facilitated to safeguard；Second, the commutation being serially connected is flexible Device is modular product, facilitates installation maintenance；Third, commutation telescopic device series connection, can make execution unit thereon simultaneously Can make or " stretching " or " contracting " or the movement of " static ", or at any time with the mutual switching motion in position, and drive part do not do it is any Change.

In some embodiments, input shaft one end be major diameter input terminal and the other end be minor diameter output end, Input terminal is equipped with central blind hole, output end and central blind hole interference fit, more using key connection between output end and central blind hole A input shaft can be connected in series with each other transmitting power.The beneficial effect is that: it can be subtracted using concatenated inserting mode input shaft Few union piece, increases installation accuracy, is serially connected installation simply, transmitting torque is accurate, lossless.

In some embodiments, side frame includes the lateral rod and connecting rod that several forward horizontals stretch out, several Lateral rod rectangular array arranges and is connected to foundation frame leading flank, and adjacent side bar is connected between front end by connecting rod, Adjacent side bar and connecting rod surround the first cavity to form hatch frame, and interior limit guide wheel is rolled along lateral rod tandem Dynamic, display screen unit is mounted in connecting rod.The beneficial effect is that: the side cage structure is simple, is easily installed maintenance, and intensity is high, The accident loads such as high wind can be resisted,

In some embodiments, mobile back end of frame quadrangle is symmetrically respectively fixed with two groups of ear mounts, and each ear mount centre is solid The connecting shaft of guide wheel is limited in one fixed, limit guide wheel tandem on a corresponding lateral rod surface rolls in every two It is dynamic.

In some embodiments, body includes cabinet and driving section, and cabinet is fixed on the leading flank of base,

Cabinet is rectangular box and inner hollow forms the second cavity, and the middle section of input shaft is located in the second cavity, is inputted Axis both ends wear the first bearing of cabinet left and right sides installation and stretch out cabinet outside, so that input shaft be made to be rotatably installed in cabinet On,

Driving section includes the first bevel gear, the second bevel gear, third bevel gear and switching part, and switching part is keyed defeated Enter axis interlude, the first bevel gear is rotatably covered on the left of input shaft interlude by bearing or copper sheathing, and the second bevel gear is logical Bearing or copper sheathing is crossed rotatably to cover on the right side of input shaft interlude, the first bevel gear, the second bevel gear umbrella tooth end towards center, And switching part two sides are symmetrically positioned in,

The third bevel gear left side and the engagement of the first bevel gear, and its right and the engagement of the second bevel gear, third bevel gear Lower flange is set in the second bearing of cabinet leading flank, thus make being mounted on cabinet of third bevel-gear rotating, third umbrella The central shaft hole of gear installs output shaft, and cabinet leading flank is stretched out in output shaft one end, and its overhanging end is spiro rod section, on spiro rod section Axle sleeve has an output nut, and output nut, which is able to drive, to be connected to the movable frame of output nut and make telescopic moving,

Switching part is the transferring element and direction of rotation converting member of rotary motion, in input shaft rotation, works as switching part In off position, then make the first bevel gear and the second bevel gear all stationary, at this time third bevel gear and output shaft It is stationary, while exporting nut and also stopping moving, to make the movable frame and display screen list that are connected on output nut Member is stationary；When switching part is in half of working condition, then make one in the first bevel gear and the second bevel gear with input Axis rotates in same direction at the same speed, then drives third bevel-gear rotating, at this point, output nut along output shaft spiro rod section " just " direction or Negation direction linear movement, so that the movable frame and display screen unit being connected on output nut be made to make " just " direction or negation The linear movement in direction.The beneficial effect is that: in the case where not stopping driving motor rotation, with a small amount of mechanical organ, realize Freely commutating or stopping for telescopic element, especially in each position of motion range, can control telescopic element positioning accurate It freely commutates or stops in quasi- ground；Structure is simple, compact simultaneously, and easy to operate, the present invention can be according to different watt levels, ruler Very little size is fabricated to the series of products of standard, becomes modular product, selects for different industries, different actual requirements.

In some embodiments, when switching part is double electromagnetic clutch forms, switching part includes two electromagnetic clutch, Electromagnetic clutch includes driving sleeve and output outer ring, when switching part is double electromagnetic clutch forms work, two electromagnetism from Clutch cannot be powered on simultaneously,

Two driving sleeves are respectively symmetrically keyed in output shaft intermediate ends two sides, and the output outer ring of left end connects the first umbrella The output outer ring of gear, right end connects the second bevel gear,

When input shaft rotation, two electromagnetic clutch are all obstructed electricity condition, export the static not rotary state in outer ring, the One bevel gear and the second bevel gear are all stationary, then third bevel gear is also stationary, therefore export nut halted state, from And keep the movable frame being connected on output nut and display screen unit also slack；

When electromagnetic clutch when left end is powered on, the electromagnetic clutch no power of right end, the output outer ring band of left end Dynamic first bevel-gear rotating, the first bevel gear drives the rotation of third bevel gear " just " direction, at this point, the second bevel gear is by third umbrella Gear drives in the state that is freely rotated, and output nut is mobile along spiro rod section straight line " just " direction of output shaft, to make to connect Movable frame and display screen unit on output nut make the linear movement in " just " direction；

When the electromagnetic clutch of right end is powered on, the electromagnetic clutch no power of left end, the output outer ring band of right end Dynamic second bevel-gear rotating, the second bevel gear drives the rotation of third bevel gear negation direction, at this point, the first bevel gear is by third umbrella Gear drives in the state that is freely rotated, and output nut is moved along the spiro rod section straight line negation direction of output shaft, to make to connect Movable frame and display screen unit on output nut carry out the linear movement of negation direction.The beneficial effect is that: switching part is Electromagnetic clutch, has that structure is simple, movement is very fast, control energy is small, is convenient for far distance control；Though volume is small, can transmit compared with Big torque；When as control for brake, have the advantages that braking is rapid and steady, since electromagnetic clutch is easily achieved at a distance Control compares operation with other mechanical, fluid pressure types or pneumatic type clutch and wants easy too much.

In some embodiments, the interlude of input shaft is also connected with there are two round nut, and each round nut is close to one The driving sleeve side surface of electromagnetic clutch, the beneficial effect is that: round nut can play the inside of electromagnetic clutch is secured Positioning prevents the axial movement of inside.

Annular portion is formed on one side surface of first bevel gear or the second bevel gear, annular portion is equipped with notch, and input is outer The protrusion of circle enters notch.

In some embodiments, when switching part is synchronizer form, switching part includes synchronizer, shift fork, the first electromagnetism Push rod and the second electromagnetism push rod, when switching part is that synchronizer form works, the first electromagnetism push rod and the second electromagnetism push rod It is not powered on simultaneously,

Synchronizer includes positioning sliding block, combined cover and two output gears, and positioning sliding block is keyed in input shaft Between section, combined cover both ends be equipped with internal tooth, combined cover connect with positioning sliding block spline and can along the outer ring straight line of positioning sliding block cunning Dynamic, two output gears are located at the two sides of combined cover, two output gears respectively with the first bevel gear and the second umbrella tooth Wheel links into an integrated entity,

Cabinet trailing flank protrusion is formed with fixed block, through hole is formed in fixed block, fixed block two sides are respectively fixed with Support, the support that the support of left end fixes the first electromagnetism push rod and right end fix the second electromagnetism push rod, radially fixed in through hole There is shifting fork pin, the middle part of shift fork is rotatablely connected shifting fork pin, and shift fork lower end enters the card slot of combined cover, and the upper end of shift fork is located at first Among electromagnetism push rod and the second electromagnetism push rod,

When input shaft rotation, the first electromagnetism push rod or the second equal no power of electromagnetism push rod, shift fork is static not to be rotated, in conjunction with Set is located at centre, and two output gears are static, and the first bevel gear and the second bevel gear are static simultaneously, and third bevel gear is also quiet Only, output nut stops moving condition, so that the movable frame and display screen unit being connected on output nut be made also to stop not It is dynamic；

When the first electromagnetism push rod is powered, the first electromagnetism push rod no power, the first electromagnetism push rod obtains electric promotion shift fork upper end It turns right, under the action of lever principle, shift fork lower end turns left, so that combined cover be pushed to be moved to the left, and makes left end Output gear and combined cover engagement, rotate together the first bevel gear connecting with left end output gear, thus the first umbrella tooth Wheel drives the rotation of third bevel gear " just " direction, at this point, the second bevel gear, which is driven to be in by third bevel gear, is freely rotated state, Nut is exported along the movement of spiro rod section straight line " just " direction of output shaft, to make the movable frame being connected on output nut and show The linear movement in display screen unit work " just " direction；

When the first electromagnetism push rod no power, the first electromagnetism push rod is powered, and the second electromagnetism push rod obtains electric promotion shift fork upper end It turns left, under the action of lever principle, shift fork lower end turns right, so that combined cover be pushed to move right, and makes right end Output gear engaged with engaging sleeve, rotate together the second bevel gear connecting with left end output gear, to make the second umbrella Gear drives the rotation of third bevel gear negation direction, at this point, the first bevel gear, which is driven to be in by third bevel gear, is freely rotated shape State, output nut are moved along the spiro rod section straight line negation direction of output shaft, thus make to be connected to the movable frame on output nut with And display screen unit makees the linear movement in negation direction.The beneficial effect is that: switching is easily operated, reduces rushing between gear It hits, extends service using life, small in size, convenient for installation and maintenance, stable structure, movement output is soft, at low cost.

In some embodiments, it is formed with center positioning hole on the first bevel gear or the second bevel gear outer surface, it is defeated Enter axis equipped with conical bearing, conic bearing outer ring is mounted in center positioning hole.

In some embodiments, cabinet two sides are formed with first axle bearing bore, install first bearing in first axle bearing bore, It is fixed with first end cover outside first axle bearing bore, first bearing is fixed in first axle bearing bore by first end cover,

Cabinet leading flank protrusion is formed with convex block, and second bearing hole is formed in convex block, installs second in second bearing hole Bearing is fixed with second end cover outside second bearing hole, and second bearing is fixed in second bearing hole by second end cover,

First bearing and second bearing are deep groove ball bearing or conical bearing.The beneficial effect is that: the setting ensure that The stable rotation of input shaft and output shaft.

Detailed description of the invention

Fig. 1 is the three-dimensional signal of the working condition of the telescopic display screen of the driving matrix of single machine of an embodiment of the present invention Figure；

Fig. 2 is the schematic three dimensional views of side frame shown in Fig. 1；

Fig. 3 is the schematic three dimensional views of the telescopic display screen halted state of the driving matrix of single machine shown in Fig. 1；

Fig. 4 is the schematic front view of the telescopic display screen of the driving matrix of single machine shown in Fig. 2；

Fig. 5 is the schematic cross-sectional view of the telescopic display screen of the driving matrix of single machine shown in Fig. 4；

Fig. 6 is driving portion and the concatenated schematic diagram of input shaft shown in Fig. 4；

Fig. 7 is the schematic cross-sectional view that commutation telescopic device shown in Fig. 4 uses bidirectional clutch；

Fig. 8 is the partial enlargement diagram of commutation telescopic device shown in Fig. 7；

Fig. 9 is the schematic cross-sectional view that commutation telescopic device shown in Fig. 4 uses synchronizer；

Figure 10 is the partial enlargement diagram of commutation telescopic device shown in Fig. 9；

Figure 11 is the schematic cross-sectional view that commutation telescopic device shown in Fig. 9 uses conical bearing；

Fixed part 01, the first cavity 010, side frame 011, lateral rod 0111, connecting rod 0112, base 012, foundation frame 013, Movable part 02, movable frame 021, nut seat 022, interior limit guide wheel 023,

Commutate telescopic device 03, body 030, cabinet 1, the second cavity 10, first axle bearing bore 11, convex block 12, second bearing Hole 13, first end cover 14, second end cover 15, fixed block 16, through hole 161, support 17, shifting fork pin 18 export nut 2, transmission Portion 3, switching part 30, the first bevel gear 31, the second bevel gear 32, third bevel gear 33, output shaft 34, synchronizer 35, positioning are slided Block 351, combined cover 352, output gear 353, shift fork 36, the first electromagnetism push rod 37, the second electromagnetism push rod 38, input shaft 4, input End 41, output end 42, central blind hole 43, electromagnetic clutch 5, driving sleeve 51 export outer ring 52,

Driving portion 04, drive shaft 041, driving motor 042, double synchronous pulleys 043, mounting base 044, synchronous belt 045, display Shield unit 05.

Specific embodiment

The invention will now be described in further detail with reference to the accompanying drawings.It should be noted that used in the following description Word "front", "rear", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to Towards or away from the direction of geometric center of specific component.

Fig. 1 to Figure 11 schematically shows the driving matrix of single machine of the driving embodiment of single machine according to the present invention Telescopic display screen.As shown, the device includes that according to an aspect of the present invention, the driving matrix of the single machine is telescopic aobvious Display screen includes fixed part 01, movable part 02, commutate telescopic device 03 and driving portion 04,

Fixed part 01 includes side frame 011, base 012 and foundation frame 013, before side frame 011 is vertically connected on foundation frame 013 Side is formed with the first cavity 010 of the hatch frame that several rectangular arrays are controlled among side frame 011, and each first is empty In chamber 010, a base 012 is fixed on the leading flank of foundation frame 013, while an activity is placed in each first cavity 010 Portion 02,

Movable part 02 includes movable frame 021, and nut seat 022 is fixed in movable frame 021, and 021 two sides of movable frame are symmetrically solid Surely there is interior limit guide wheel 023, interior limit guide wheel 023 is rolled along 010 two side walls tandem of the first cavity, each movable frame Vertical plane fixes a display screen unit 05 before 021, and structure is arranged in a matrix in several display screen units 05 that can be moved forward and backward At the telescopic display screen of matrix,

On each base 012 install a commutation telescopic device 03, specifically: commutation telescopic device 03 including body 030, Input shaft 4, output shaft 34 and output nut 2, body 030 press 4 horizontality of input shaft, are vertically fixed on 012 front side of base, The input shaft 4 of the two neighboring commutation telescopic device 03 in left and right is end-to-end, and forms series connection, output shaft 34 and output nut 2 It is the connection of phase axle sleeve, output nut 2 is fixed on 022 centre bore of nut seat,

Driving portion 04 includes several drive shafts 041, driving motor 042, several double synchronous pulleys 043, mounting base 044 And several synchronous belts 045, a driving is connected in the input shaft 4 of commutation 03 outermost end of telescopic device of each horizontal series Axis 041 connects driving motor 042 in a drive shaft 041 of central part, a key is cased on each driving motor 042 and is connected The double synchronous pulleys 043 connect, neighbouring double synchronous pulleys 043 are connected by synchronous belt 045, and driving motor 042 passes through peace Dress seat 044 is fixed on foundation frame 013,

One driving motor 042 is driven all by several 045 passing movements of double synchronous pulleys 043 and synchronous belt The synchronized rotation in the same direction of drive shaft 041, drive shaft 041 drive the synchronized rotation in the same direction together of all concatenated input shafts 4, same time control again All commutation telescopic devices 03 are made into motion state, each commutation telescopic device 03 can drive respectively output nut 2 respectively, And the movable frame 021 being fixed thereon carries out static or forward or moves backward state, to make to be mounted on movable frame 021 Upper each display screen unit 05 present different time, different location retracted position movement, to be formed continually changing dynamic State screen.The beneficial effect is that: first, driving portion is provided only with a driving motor, at low cost, structure is simple, and installation is facilitated to adjust Examination maintenance；Second, the commutation telescopic device being serially connected is modular product, facilitate installation maintenance；Third, commutation telescopic device Series connection can make execution unit thereon while can make or " stretching " or " contracting " or the movement of " static ", or mutual with position at any time Switching motion, and drive part and do not make any changes.

Preferably, 4 one end of input shaft be major diameter input terminal 41 and the other end be minor diameter output end 42, input terminal 41 are equipped with central blind hole 43, and output end 42 and central blind hole 43 are interference fitted, and key is used between output end 42 and central blind hole 43 Connection, multiple input shafts 4 can be connected in series with each other transmitting power.The beneficial effect is that: it is inputted using concatenated inserting mode Axis can reduce union piece, increase installation accuracy, be serially connected installation simply, transmitting torque is accurate, lossless.

Preferably, side frame 011 includes the lateral rod 0111 and connecting rod 0112 that several forward horizontals stretch out, several 0111 rectangular array of lateral rod arranges and is connected to 013 leading flank of foundation frame, and adjacent side bar passes through company between 0111 front end Extension bar 0112 is connected, and adjacent side bar 0111 and connecting rod 0112 surround the first cavity 010 for forming hatch frame, interior limit Position guide wheel 023 is rolled along 0111 tandem of lateral rod, and display screen unit 05 is mounted in connecting rod 0112.Its advantages Be: the side cage structure is simple, is easily installed maintenance, and intensity is high, can resist the accident loads such as high wind,

Preferably, 021 rear end quadrangle of movable frame is symmetrically respectively fixed with two groups of ear mounts, fixes in one among each ear mount The connecting shaft of guide wheel 023 is limited, limits the tandem on corresponding 0111 surface of lateral rod of guide wheel 023 in every two It rolls.

Preferably, body 030 includes cabinet 1 and driving section 3, and cabinet 1 is fixed on the leading flank of base 012,

Cabinet 1 is rectangular box and inner hollow forms the second cavity 10, and the middle section of input shaft 4 is located at the second cavity 10 Interior, 4 both ends of input shaft wear the first bearing of 1 left and right sides of cabinet installation and outer stretching cabinet 1, to make 4 turns of input shaft It is dynamic to be mounted on cabinet 1,

Driving section 3 includes the first bevel gear 31, the second bevel gear 32, third bevel gear 33 and switching part 30, switching part 30 key connections are rotatably covered left in 4 interlude of input shaft in 4 interlude of input shaft, the first bevel gear 31 by bearing or copper sheathing Side, the second bevel gear 32 are rotatably covered on the right side of 4 interlude of input shaft by bearing or copper sheathing, the first bevel gear 31, second The umbrella tooth end of bevel gear 32 is symmetrically positioned in 30 two sides of switching part towards center,

33 left side of third bevel gear and the engagement of the first bevel gear 31, and its right and the engagement of the second bevel gear 32, third umbrella The lower flange of gear 33 is set in the second bearing of 1 leading flank of cabinet, thus make third bevel gear 33 rotate be mounted on machine On case 1, the central shaft hole of third bevel gear 33 installs output shaft 34, and 1 leading flank of cabinet is stretched out in 34 one end of output shaft, and its is overhanging End is spiro rod section, and spiro rod section Upper shaft sleeve has output nut 2, and output nut 2 is able to drive the movable frame for being connected to output nut 2 021 makees telescopic moving,

Switching part 30 is the transferring element and direction of rotation converting member of rotary motion, when input shaft 4 rotates, works as switching Portion 30 is in off position, then makes the first bevel gear 31 and the second bevel gear 32 all stationary, at this time third bevel gear 33 It is also stationary with output shaft 34, while exporting nut 2 and also stopping movement, to make the movement being connected on output nut 2 Frame 021 and display screen unit 05 are stationary；When switching part 30 is in half of working condition, then make the first bevel gear 31 and the One in two bevel gears 32 rotates in same direction at the same speed with input shaft 4, then third bevel gear 33 is driven to rotate, at this point, output nut 2 It moves linearly along spiro rod section " just " direction of output shaft 34 or negation direction, to make the movable frame being connected on output nut 2 021 and display screen unit 05 make the linear movement in " just " direction or negation direction.The beneficial effect is that: do not stopping driving electricity In the case that machine rotates, with a small amount of mechanical organ, freely commutating or stopping for telescopic element is realized, especially in motion range Each position is freely commutated or is stopped in which can controlling telescopic element accurate positioning；Structure is simple, compact simultaneously, operation side Just, the present invention can be fabricated to the series of products of standard, become modular product according to different watt levels, size, It is selected for different industries, different actual requirements.

Preferably, when switching part 30 is double electromagnetic clutch forms, switching part 30 includes two electromagnetic clutch 5, electromagnetism Clutch 5 includes driving sleeve 51 and output outer ring 52, when switching part 30 is double electromagnetic clutch form work, two electromagnetism Clutch cannot be powered on simultaneously,

Two driving sleeves 51 are respectively symmetrically keyed in 41 intermediate ends two sides of output shaft, and the output outer ring 52 of left end connects The output outer ring 52 of first bevel gear 31, right end connects the second bevel gear 32,

When input shaft 4 rotates, two electromagnetic clutch 5 are all obstructed electricity condition, and outer ring 52 is static does not rotate shape for output State, the first bevel gear 31 and the second bevel gear 32 are all stationary, then third bevel gear 33 is also stationary, therefore export nut 2 halted states, to keep the movable frame 021 being connected on output nut 2 and display screen unit 05 also slack；

When electromagnetic clutch 5 when left end is powered on, 5 no power of electromagnetic clutch of right end, the output outer ring of left end 52 drive the rotation of the first bevel gear 31, and the first bevel gear 31 drives the rotation of " just " direction of third bevel gear 33, at this point, the second umbrella tooth Wheel 32 is driven by third bevel gear 33 in the state that is freely rotated, and output nut 2 is along spiro rod section straight line " just " side of output shaft 34 To movement, so that the straight line for making the movable frame 021 and display screen unit 05 being connected on output nut 2 make " just " direction moves It is dynamic；

When the electromagnetic clutch 5 of right end is powered on, 5 no power of electromagnetic clutch of left end, the output outer ring of right end 52 drive the rotation of the second bevel gear 32, and the second bevel gear 32 drives the rotation of 33 negation direction of third bevel gear, at this point, the first umbrella tooth Wheel 31 is driven by third bevel gear 33 in the state that is freely rotated, and exports nut 2 along the spiro rod section straight line negation side of output shaft 34 To movement, moved so that the movable frame 021 and display screen unit 05 being connected on output nut 2 be made to carry out negation direction straight line It is dynamic.The beneficial effect is that: switching part is electromagnetic clutch, has that structure is simple, movement is very fast, control energy is small, is convenient for long distance From control；Though volume is small, biggish torque can be transmitted；When as control for brake, have the advantages that braking is rapid and steady, due to Electromagnetic clutch, which is easily achieved far distance control, compare operation with other mechanical, fluid pressure types or pneumatic type clutch and wants simplicity Much.

Preferably, the interlude of input shaft 4 is also connected with there are two round nut, and each round nut is close to an electromagnetic clutch 5 51 side surface of driving sleeve, the beneficial effect is that: round nut, which can play, fixedly positioning the inside of electromagnetic clutch 5, prevents The only axial movement of inside.

Annular portion is formed on 32 1 side surface of first bevel gear 31 or the second bevel gear, annular portion is equipped with notch, defeated The protrusion for entering outer ring 52 enters notch.

Preferably, when switching part 30 is synchronizer form, switching part 30 is pushed away including synchronizer 35, shift fork 36, the first electromagnetism Bar 37 and the second electromagnetism push rod 38, when switching part 30 is that synchronizer form works, the first electromagnetism push rod 37 and the second electricity Magnetic push rod 38 is not powered on simultaneously,

Synchronizer 35 includes positioning sliding block 351, combined cover 352 and two output gears 353, and 351 key of positioning sliding block connects The interlude in input shaft 4 is connect, 352 both ends of combined cover are equipped with internal tooth, and combined cover 352 is connected with 351 spline of positioning sliding block and energy Enough outer ring linear slides along positioning sliding block 351, two output gears 353 are located at the two sides of combined cover 352, two outputs Gear ring 353 links into an integrated entity with the first bevel gear 31 and the second bevel gear 32 respectively,

1 trailing flank of cabinet protrusion is formed with fixed block 16, and through hole 161,16 two sides of fixed block are formed in fixed block 16 It is respectively fixed with support 17, the support 17 of left end fixes the first electromagnetism push rod 37 and the support 17 of right end fixes the second electromagnetism push rod 38, shifting fork pin 18 is radially fixed in through hole 161, the middle part of shift fork 36 is rotatablely connected shifting fork pin 18, and 36 lower end of shift fork enters The upper end of the card slot of combined cover 352, shift fork 36 is located among the first electromagnetism push rod 37 and the second electromagnetism push rod 38,

When input shaft 4 rotates, the first electromagnetism push rod 37 or the equal no power of the second electromagnetism push rod 38, shift fork 36 is static not to be turned Dynamic, combined cover 352 is located at centre, and two output gears 353 are static, and the first bevel gear 31 and the second bevel gear 32 are quiet simultaneously Only, third bevel gear 33 is also static, and output nut 2 stops moving condition, to make the movable frame being connected on output nut 2 021 and display screen unit 05 it is also slack；

When the first electromagnetism push rod 37 is powered, 38 no power of the first electromagnetism push rod, the first electromagnetism push rod 37 obtains electric push and dials It pitches 36 upper ends to turn right, under the action of lever principle, 36 lower end of shift fork turns left, to push combined cover 352 to the left It is mobile, and the output gear 353 of left end and combined cover 31 are engaged, make the first bevel gear connecting with left end output gear 353 31 rotate together, so that the first bevel gear 31 drives the rotation of " just " direction of third bevel gear 33, at this point, the second bevel gear 32 is by the Three bevel gears 33 drive in the state that is freely rotated, and output nut 2 is mobile along spiro rod section straight line " just " direction of output shaft 34, from And make the linear movement of the movable frame 021 being connected on output nut 2 and the work of display screen unit 05 " just " direction；

When the first electromagnetism 37 no power of push rod, the first electromagnetism push rod 38 is powered, and the second electromagnetism push rod 38 obtains electric push and dials It pitches 36 upper ends to turn left, under the action of lever principle, 36 lower end of shift fork turns right, to push combined cover 352 to the right It is mobile, and engage the output gear 353 of right end with engaging sleeve 352, make the second bevel gear connecting with left end output gear 353 32 rotate together, to make the second bevel gear 32 drive the rotation of 33 negation direction of third bevel gear, at this point, 31 quilt of the first bevel gear Third bevel gear 33 drives in the state that is freely rotated, and output nut 2 is moved along the spiro rod section straight line negation direction of output shaft 34, To make the movable frame 021 and display screen unit 05 being connected on output nut 2 make the linear movement in negation direction.Its is beneficial Effect is: switching is easily operated, reduces the collision between gear, extends service using life, small in size, convenient for installation and maintenance, Stable structure, movement output is soft, at low cost.

Preferably, center positioning hole is formed on 32 outer surface of the first bevel gear 31 or the second bevel gear, on input shaft 4 Equipped with conical bearing, conic bearing outer ring is mounted in center positioning hole.

Preferably, 1 two sides of cabinet are formed with first axle bearing bore 11, installation first bearing in first axle bearing bore 11, and first It is fixed with first end cover 14 outside bearing hole 11, first bearing is fixed in first axle bearing bore 11 by first end cover 14,

1 leading flank of cabinet protrusion is formed with convex block 12, is formed with second bearing hole 13 in convex block 12, in second bearing hole 13 Second bearing is installed, is fixed with second end cover 15 outside second bearing hole 13, second bearing is fixed on the second axis by second end cover 15 In bearing bore 13,

Preferably, it is formed with positioning ring on 32 outer surface of the first bevel gear 31 or the second bevel gear, input shaft 4 is equipped with Drag ring or plane bearing, drag ring or plane bearing and positioning ring fit.

Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention It encloses.

Claims

1. the telescopic display screen of the driving matrix of single machine, which is characterized in that stretched including fixed part (01), movable part (02), commutation Compression apparatus (03) and driving portion (04),

The fixed part (01) includes side frame (011), base (012) and foundation frame (013), and the side frame (011) vertically connects It connects and is formed with the opening knot that several rectangular arrays are controlled among the foundation frame (013) leading flank, the side frame (011) The first cavity (010) of structure, each first cavity (010) is interior, and a base (012) is fixed on the foundation frame (013) leading flank, while a movable part (02) is placed in each first cavity (010),

The movable part (02) includes movable frame (021), is fixed with nut seat (022), the movement in the movable frame (021) Frame (021) two sides are symmetrically fixed with interior limit guide wheel (023), and the interior limit guide wheel (023) is along first cavity (010) two Side wall surface tandem rolls, and vertical plane fixes a display screen unit (05), several energy before each movable frame (021) The display screen unit (05) being enough moved forward and backward, which is arranged in a matrix, constitutes the telescopic display screen of matrix,

One commutation telescopic device (03) is installed, specifically: the commutation telescopic device on each base (012) It (03) include body (030), input shaft (4), output shaft (34) and output nut (2), the body (030) presses the input Axis (4) horizontality is vertically fixed on front side of the base (012), two neighboring commutation telescopic device (03) in left and right The input shaft (4) is end-to-end, and series connection is formed, and the output shaft (34) and the output nut (2) are that phase axle sleeve connects It connecing, the output nut (2) is fixed on the nut seat (022) centre bore,

The driving portion (04) include several drive shafts (041), driving motor (042), several double synchronous pulleys (043), Mounting base (044) and several synchronous belts (045), in commutation telescopic device (03) outermost end of each horizontal series The input shaft (4) connects a drive shaft (041), described in drive shaft (041) connection of central part Driving motor (042) is cased with double synchronous pulleys (043) of a key connection on each driving motor (042), neighbouring Double synchronous pulleys (043) are connected by the synchronous belt (045), and the driving motor (042) passes through the mounting base (044) it is fixed on the foundation frame (013),

One driving motor (042) passes through several double synchronous pulleys (043) and the synchronous belt (045) transmitting fortune It is dynamic, the synchronized rotation in the same direction of all drive shafts (041) is driven, the drive shaft (041) drives all concatenated described again Input shaft (4) synchronized rotation in the same direction together, while all commutation telescopic devices (03) are controlled into motion state, Mei Gesuo The respective output nut (2), and the movable frame being fixed thereon can be driven respectively by stating commutation telescopic device (03) (021) it carries out static or forward or moves backward state, to make to be mounted on each display on the movable frame (021) Shield unit (05) present different time, different location retracted position movement, to form continually changing active screen.

2. the telescopic display screen of the driving matrix of single machine according to claim 1, which is characterized in that the input shaft (4) One end is the input terminal (41) of major diameter and the other end is the output end (42) of minor diameter, and it is blind that the input terminal (41) is equipped with center Hole (43), the output end (42) and the central blind hole (43) interference fit, the output end (42) and the central blind hole (43) using key connection between, multiple input shafts (4) can be connected in series with each other transmitting power.

3. the telescopic display screen of the driving matrix of single machine according to claim 1, which is characterized in that the side frame (011) Including lateral rod (0111) and connecting rod (0112) that several forward horizontals stretch out, several described lateral rods (0111) are in Rectangular array arranges and is connected to the foundation frame (013) leading flank, passes through institute between adjacent lateral rod (0111) front end It states connecting rod (0112) to be connected, the adjacent lateral rod (0111) and the connecting rod (0112) encirclement form hatch frame First cavity (010), the interior limit guide wheel (023) rolls along the lateral rod (0111) tandem, described aobvious Display screen unit (05) is mounted on the connecting rod (0112).

4. the telescopic display screen of the driving matrix of single machine according to claim 3, which is characterized in that the movable frame (021) rear end quadrangle is symmetrically respectively fixed with two groups of ear mounts, and the interior limit guide wheel is fixed among each ear mount (023) connecting shaft, interior limit guide wheel (023) described in every two are gone forward on corresponding lateral rod (0111) surface Straight line rolls afterwards.

5. the telescopic display screen of the driving matrix of single machine according to claim 1, which is characterized in that the body (030) Including cabinet (1) and driving section (3), the cabinet (1) is fixed on the leading flank of the base (012),

The cabinet (1) is rectangular box and inner hollow forms the second cavity (10), and the middle section of the input shaft (4) is located at institute It states in the second cavity (10), input shaft (4) both ends wear the first bearing of the cabinet (1) left and right sides installation and outer The cabinet (1) is stretched out, so that it is rotatably installed in the input shaft (4) on the cabinet (1),

The driving section (3) includes the first bevel gear (31), the second bevel gear (32), third bevel gear (33) and switching part (30), for switching part (30) key connection in the input shaft (4) interlude, first bevel gear (31) passes through bearing or copper Set rotatably covers on the left of the input shaft (4) interlude, and second bevel gear (32) can be rotated by bearing or copper sheathing Cover on the right side of the input shaft (4) interlude, first bevel gear (31), second bevel gear (32) umbrella tooth end court Center, and the switching part (30) two sides are symmetrically positioned in,

Third bevel gear (33) left side and first bevel gear (31) engagement, and its right and second bevel gear (32) it engages, the lower flange of the third bevel gear (33) is set in the second bearing of the cabinet (1) leading flank, to make Third bevel gear (33) rotation is mounted on the cabinet (1), the central shaft hole installation of the third bevel gear (33) The output shaft (34), cabinet (1) leading flank is stretched out in described output shaft (34) one end, and its overhanging end is spiro rod section, institute Stating spiro rod section Upper shaft sleeve has the output nut (2), and the output nut (2), which is able to drive, is connected to the output nut (2) The movable frame (021) make telescopic moving,

The switching part (30) is the transferring element and direction of rotation converting member of rotary motion, is rotated in the input shaft (4) When, when the switching part (30) is in off position, then make first bevel gear (31) and second bevel gear (32) All stationary, the third bevel gear (33) and the output shaft (34) are also stationary at this time, while the output nut (2) also stop movement, to make the movable frame (021) and the display screen unit that are connected on output nut (2) (05) stationary；When the switching part (30) are in half of working condition, then make first bevel gear (31) and described the One in two bevel gears (32) rotates in same direction at the same speed with the input shaft (4), then the third bevel gear (33) is driven to rotate, At this point, output nut (2) moves linearly along spiro rod section " just " direction of the output shaft (34) or negation direction, to make Be connected to it is described output nut (2) on the movable frame (021) and the display screen unit (05) make " just " direction or The linear movement in negation direction.

6. the telescopic display screen of the driving matrix of single machine according to claim 5, which is characterized in that the switching part (30) When for double electromagnetic clutch forms, the switching part (30) includes two electromagnetic clutch (5), electromagnetic clutch (5) packet Driving sleeve (51) and output outer ring (52) are included, when the switching part (30) are double electromagnetic clutch form work, two electricity Magnet clutch cannot be powered on simultaneously,

Two driving sleeves (51) are respectively symmetrically keyed in the output shaft (41) intermediate ends two sides, left end it is described defeated Outer ring (52) connect first bevel gear (31) out, and the output outer ring (52) of right end connects second bevel gear (32),

When the input shaft (4) rotation, two electromagnetic clutch (5) are all obstructed electricity condition, the output outer ring (52) static not rotary state, first bevel gear (31) and second bevel gear (32) are all stationary, then and described Three bevel gears (33) are also stationary, therefore output nut (2) halted state, to make to be connected to the output nut (2) movable frame (021) and the display screen unit (05) on are also slack；

When the electromagnetic clutch (5) when left end is powered on, the electromagnetic clutch (5) no power of right end, left end The output outer ring (52) drives the first bevel gear (31) rotation, and first bevel gear (31) drives the third umbrella tooth The rotation of (33) " just " direction is taken turns, is freely turned at this point, second bevel gear (32) is driven to be in by the third bevel gear (33) Dynamic state, output nut (2) is mobile along spiro rod section straight line " just " direction of the output shaft (34), to make to be connected to institute State the linear movement that the movable frame (021) and the display screen unit (05) in output nut (2) make " just " direction；

When the electromagnetic clutch (5) of right end is powered on, the electromagnetic clutch (5) no power of left end, right end The output outer ring (52) drives the second bevel gear (32) rotation, and second bevel gear (32) drives the third umbrella tooth The rotation of (33) negation direction is taken turns, is freely turned at this point, first bevel gear (31) is driven to be in by the third bevel gear (33) Dynamic state, output nut (2) is mobile along the spiro rod section straight line negation direction of the output shaft (34), to make to be connected to institute The movable frame (021) and the display screen unit (05) stated in output nut (2) carry out the linear movement of negation direction.

7. the telescopic display screen of the driving matrix of single machine according to claim 5, which is characterized in that the switching part (30) When for synchronizer form, the switching part (30) includes synchronizer (35), shift fork (36), the first electromagnetism push rod (37) and second Electromagnetism push rod (38), when the switching part (30) are that synchronizer form works, the first electromagnetism push rod (37) and described Second electromagnetism push rod (38) is not powered on simultaneously,

The synchronizer (35) includes positioning sliding block (351), combined cover (352) and two output gears (353), the positioning Sliding block (351) is keyed the interlude in the input shaft (4), and combined cover (352) both ends are equipped with internal tooth, the combined cover (352) it connects with the positioning sliding block (351) spline and can be along the outer ring linear slide of the positioning sliding block (351), two The output gear (353) is located at the two sides of the combined cover (352), and two output gears (353) are respectively and institute It states the first bevel gear (31) and second bevel gear (32) links into an integrated entity,

Cabinet (1) the trailing flank protrusion is formed with fixed block (16), is formed with through hole (161) in the fixed block (16), Fixed block (16) two sides are respectively fixed with support (17), the fixed first electromagnetism push rod of the support (17) of left end (37) and the support (17) of right end fixes the second electromagnetism push rod (38), is radially fixed in the through hole (161) Shifting fork pin (18), the middle part of the shift fork (36) are rotatablely connected the shifting fork pin (18), described in shift fork (36) lower end enters The upper end of the card slot of combined cover (352), the shift fork (36) is located at the first electromagnetism push rod (37) and second electromagnetism Push rod (38) is intermediate,

When the input shaft (4) rotation, the first electromagnetism push rod (37) or the equal no power of the second electromagnetism push rod (38), The shift fork (36) is static not to be rotated, and the combined cover (352) is located at centre, and two output gears (353) are static, institute It states the first bevel gear (31) and second bevel gear (32) is static simultaneously, the third bevel gear (33) is also static, described defeated Nut (2) stops moving condition out, to make to be connected to the movable frame (021) on output nut (2) and described Display screen unit (05) is also slack；

When the first electromagnetism push rod (37) is powered, the first electromagnetism push rod (38) no power, the first electromagnetism push rod (37) it obtains electric promotion shift fork (36) upper end to turn right, under the action of lever principle, shift fork (36) lower end is to the left Rotation, so that the combined cover (352) be pushed to be moved to the left, and makes the output gear (353) and the combined cover of left end (31) it engages, rotates together first bevel gear (31) connecting with output gear described in left end (353), thus described the One bevel gear (31) drives third bevel gear (33) " just " the direction rotation, at this point, second bevel gear (32) is described Third bevel gear (33) drives in state is freely rotated, and output nut (2) is straight along the spiro rod section of the output shaft (34) Line " just " direction is mobile, to make the movable frame (021) and the display screen list that are connected on output nut (2) First (05) makees the linear movement in " just " direction；

When the first electromagnetism push rod (37) no power, the first electromagnetism push rod (38) is powered, the second electromagnetism push rod (38) it obtains electric promotion shift fork (36) upper end to turn left, under the action of lever principle, shift fork (36) lower end is to the right Rotation so that the combined cover (352) be pushed to move right, and makes the output gear (353) and the engaging sleeve of right end (352) it engages, rotates together second bevel gear (32) connecting with output gear described in left end (353), to make institute It states the second bevel gear (32) and drives third bevel gear (33) the negation direction rotation, at this point, first bevel gear (31) quilt The third bevel gear (33) drives in the state that is freely rotated, screw rod of output nut (2) along the output shaft (34) Section straight line negation direction is mobile, to make the movable frame (021) being connected on output nut (2) and the display Screen unit (05) makees the linear movement in negation direction.

8. the telescopic display screen of the driving matrix of single machine according to claim 7, which is characterized in that first bevel gear (31) or on second bevel gear (32) outer surface it is formed with center positioning hole, the input shaft (4) is equipped with cone axis It holds, the conic bearing outer ring is mounted in the center positioning hole.

9. the telescopic display screen of the driving matrix of single machine according to claim 5, which is characterized in that the cabinet (1) two Side is formed with first axle bearing bore (11), the installation first bearing, the first axle bearing bore in the first axle bearing bore (11) (11) it is fixed with first end cover (14) outside, first bearing is fixed on the first axle bearing bore (11) by the first end cover (14) It is interior,

Cabinet (1) the leading flank protrusion is formed with convex block (12), is formed with second bearing hole (13), institute in the convex block (12) The installation second bearing in second bearing hole (13) is stated, is fixed with second end cover (15), institute outside the second bearing hole (13) It states second end cover (15) second bearing is fixed in the second bearing hole (13),

The first bearing and the second bearing are deep groove ball bearing or conical bearing.