CN108204106A

CN108204106A - A kind of novel painting device for building roof brushing

Info

Publication number: CN108204106A
Application number: CN201711191930.XA
Authority: CN
Inventors: 冼嘉健
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-24
Filing date: 2017-11-24
Publication date: 2018-06-26

Abstract

The invention discloses a kind of novel painting devices for building roof brushing, including lifting support frame body and the brushing body being fixedly mounted in the lifting support frame body top end surface, stock chest is equipped in the right hand top end face of the brushing body, deep gouge is equipped in the left side top end face of the brushing body, the first sliding groove for extending downwardly setting is equipped in the brushing body top end surface between the deep gouge and the stock chest, connect the first cavity of setting in the machine for brushing body of the storing trench bottom in wall body with the first sliding groove bottom extended segment equipped with left-hand end, the first guide runner is equipped in inner bottom wall on the right side of first cavity, the first sliding block is slidably connected in the first sliding groove, the second sliding slot for extending downwardly setting is equipped in the first slider top end face；The configuration of the present invention is simple, it is easy to operate, the waste of slurries is prevented, can realize to automatically control and be stained with material work, meanwhile, improve brushing working efficiency and quality.

Description

A kind of novel painting device for building roof brushing

Technical field

The present invention relates to technical field of building construction, specifically a kind of novel brushing for building roof brushing fills It puts.

Background technology

During house decoration, need to carry out roof and surface of wall brushing processing, the wherein finishings such as the brushing on roof Operation is one of most difficult operation, and the brushing of traditional roof is completed by operation of manually ascending a height, and is produced in artificial painting process Raw dust affects human health, and artificial painting efficiency is low, and the difference on effect after brushing is larger, and quality of whitewashing a wall is irregular It is uneven, in addition, often occur in artificial painting process slurry coatings splash construction personnel on the face, with, simultaneously because slurry Liquid causes the secondary cleaning of flooring, had not only caused the waste of slurries raw material, but also time-consuming, therefore, be badly in need of from the drippage of round brush It is a kind of can be to painting device that building roof is brushed.

Invention content

The technical problems to be solved by the invention are to provide a kind of novel painting device for building roof brushing, It can solve the problems in above-mentioned present technology.

The present invention is achieved through the following technical solutions：The present invention's is a kind of novel for building roof brushing Painting device, including lifting support frame body and the brushing body being fixedly mounted in the lifting support frame body top end surface, Stock chest is equipped in the right hand top end face of the brushing body, deep gouge is equipped in the left side top end face of the brushing body, The first sliding groove for extending downwardly setting, institute are equipped in the brushing body top end surface between the deep gouge and the stock chest It states in the machine for brushing body of storing trench bottom and connects setting with the first sliding groove bottom extended segment equipped with left-hand end in wall body The first cavity, be equipped with the first guide runner in the inner bottom wall on the right side of first cavity, the company of being slidably matched in the first sliding groove It is connected to the first sliding block, is equipped with the second sliding slot for extending downwardly setting in the first slider top end face, in the second sliding slot The second sliding block for upwardly extending setting is slidably connected with, top pressure coordinates in the second sliding slot of second slider bottom It is connected with top pressure spring, is equipped with slide guide chamber in the inner wall at left and right sides of the second sliding slot, the slide guide intracavitary is slidably matched company The slide guide head being fixedly connected with second sliding block is connected to, the second slider top extended segment is stretched out after the first sliding groove Outside the top end surface of the brushing body, stretch out on second outside face thereof outside the brushing body top end surface and surround It is installed with limited block, is rotatably assorted in second sliding block on the upside of the limited block and is connected with the extended switching in left and right Axis, Coupling Shaft left side extending end extends to the upper side position of the deep gouge and end is installed with and stretches into the deep gouge First cone pulley, Coupling Shaft right side extending end, which is extended on the top position and outer surface of the stock chest, to be circumferentially installed with Rotary broom, the bottom position on the right side of first sliding block are installed with the articulated section stretched into first cavity, and described first leads The first slider guide is slidably connected in sliding slot, is hingedly connected between the articulated section at the top of first slider guide There is compression bar, the first slider guide screw-internal thread fit is connected with left and right and is extended the first screw rod, and first guide runner is left It is equipped in the machine for brushing body of side to the driving control with first cone pulley and the first screw rod power mating connection Assembly processed is additionally provided in the drive control assembly and holds protection unit.

Preferably technical solution, the drive control assembly include being arranged on the machine for brushing below the deep gouge Transmission mechanism in wall body and the adjusting driving mechanism being arranged in the deep gouge in vivo.

Preferably technical solution, the transmission mechanism include be arranged on the deep gouge bottom second cavity, It is rotatably assorted the second cone pulley for being arranged on the second cavity inner roof wall of connection and the connection that is rotatably assorted is arranged on described the The third cone pulley of connection, the second cavity right end and first are engaged on the right side of two cavitys on inner wall and with second cone pulley Guide runner left distal end is oppositely arranged, in the machine for brushing body between second cavity and first guide runner in wall body It is rotatably assorted and is connected with the extended first rotating shaft in left and right, extending end stretches into second cavity on the left of the first rotating shaft Interior and be fixedly connected with the third cone pulley right-hand end, extending end is stretched into first guide runner on the right side of the first rotating shaft And it is fixedly connected with extending end on the left of first screw rod, extending end and first guide runner on the right side of first screw rod Right side inner wall is rotatably assorted connection, is rotatably assorted in wall body in the machine for brushing body between the deep gouge and second cavity The second extended up and down shaft is connected with, the second shaft top extending end stretches into the deep gouge and end is fixed Have a male splined shaft, the second shaft bottom extending end stretch into second cavity and with the second cone pulley top end surface It is fixedly connected.

Preferably technical solution, the driving mechanism that adjusts include be arranged in the inner wall of the deep gouge right side second Guide runner and sliding connection are arranged on the second extended in second guide runner and to the left slider guide, described The second slider guide screw-internal thread fit in second guide runner is connected with the second extended up and down screw rod, second spiral shell Extending end is rotatably assorted with the second guide runner inner roof wall at the top of bar connect, the second screw rod bottom extending end and the One motor power is connected, and first outer surface of motor is in the second guide runner inner bottom wall and is fixedly connected, institute Extended segment on the left of the second slider guide is stated to stretch into the deep gouge and be fixedly provided with the second motor, the second motor top end surface Power connector has the 4th cone pulley stretched out outside the second slider guide top end surface and to engage connection with first cone pulley, The second motor bottom end face power connector have stretch out it is outside the second slider guide bottom end face and to the outer flower The internal splined shaft bushing that key axis is connected.

Preferably technical solution, the protection unit that holds include vibration damper plate and drop backing, and the vibration damper plate is arranged on institute It states the left end of the second motor in drive control assembly and right end and is fixedly connected with second motor, the drop backing setting It is fixedly connected in the front-end and back-end of second motor and with second motor.

The beneficial effects of the invention are as follows：The configuration of the present invention is simple, it is easy to operate, pass through the right hand top end face of brushing body Stock chest is inside set, deep gouge is set in the left side top end face of brushing body, the brushing body top end surface between deep gouge and stock chest It inside sets the first sliding groove for extending downwardly setting, left-hand end and the first sliding groove bottom is set in wall body in the machine for brushing body of storing trench bottom First cavity of extended segment connection setting sets the first guide runner in the inner bottom wall on the right side of the first cavity, slides and match in the first sliding groove The first sliding block of connection is closed, the second sliding slot for extending downwardly setting is set in the first slider top end face, is slidably matched in second sliding slot Connection upwardly extends the second sliding block of setting, top pressure mating connection top pressure spring in the second sliding slot of the second slider bottom, and second Slide guide chamber is set in inner wall at left and right sides of sliding slot, slide guide intracavitary is slidably connected the slide guide head being fixedly connected with the second sliding block, Second slider top extended segment is stretched out after the first sliding groove outside the top end surface of brushing body, is stretched out outside brushing body top end surface The second outside face thereof on around fixed limited block, the connection left and right extension that is rotatably assorted in the second sliding block on the upside of limited block is set The Coupling Shaft put, Coupling Shaft left side extending end extend to fixed the first cone stretched into deep gouge of the upper side position of deep gouge and end Wheel, Coupling Shaft right side extending end extend to circumferential fixed rotary broom, the first sliding block on the top position and outer surface of stock chest The fixed articulated section stretched into the first cavity of the bottom position on right side, the first guide runner the first slider guide of interior sliding connection, Hingedly be connected compression bar at the top of first slider guide between articulated section, the first slider guide screw-internal thread fit connection left and right extension First screw rod is set, sets to connect with the first cone pulley and the cooperation of the first screw rod power in the machine for brushing body on the left of the first guide runner The drive control assembly connect is connected by the top pressure of top pressure spring and the second sliding block, is building so as to improve rotary broom Tight ness rating when roof abuts against improves brushing quality, passes through, rotary broom is arranged on the top position of stock chest, prevents from rolling The slurries of cylinder brush drippage, cause the secondary cleaning of flooring, while cause the waste of slurries raw material, can realize to automatically control and be stained with Expect work, improve brushing working efficiency and quality.

Description of the drawings

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

Fig. 1 is overall structure diagram outside a kind of novel painting device for building roof brushing of the present invention；

Fig. 2 is overall structure diagram inside a kind of novel painting device for building roof brushing of the present invention；

Fig. 3 is a kind of vertical view of novel painting device for building roof brushing of the present invention；

Fig. 4 is the partial enlargement structural representation in Fig. 2 of the present invention；

Fig. 5 is the structure diagram for holding protection unit of the present invention.

Specific embodiment

As Figure 1-Figure 5, a kind of novel painting device for building roof brushing of the invention, including lifting branch Support body 8 and the brushing body 9 being fixedly mounted in 8 top end surface of lifting support frame body, the right side of the brushing body 9 Stock chest 91 is equipped in side roof part end face, is equipped with deep gouge 95 in the left side top end face of the brushing body 9, the deep gouge 95 and The first sliding groove 93 for extending downwardly setting, the storage are equipped in 9 top end surface of brushing body between the stock chest 91 In 9 inner wall of brushing body of 91 bottom of hopper setting is connected with the 93 bottom extended segment of the first sliding groove equipped with left-hand end The first cavity 92, be equipped with the first guide runner 96 in the inner bottom wall on first cavity, 92 right side, it is sliding in the first sliding groove 93 It is dynamic to be connected with the first sliding block 931, it is equipped with the second sliding slot for extending downwardly setting in 931 top end surface of the first sliding block 932, the second sliding block 934 for upwardly extending setting, second sliding block 934 are slidably connected in the second sliding slot 932 Top pressure is connected with top pressure spring 935, the inner wall of 932 left and right sides of second sliding slot in the second sliding slot 93 of bottom It is interior to be equipped with slide guide chamber 936, it is slidably connected with the slide guide being fixedly connected with second sliding block 934 in the slide guide chamber 936 First 937, the top end surface of the brushing body 9 is stretched out in the 934 top extended segment of the second sliding block after the first sliding groove 93 Outside, it stretches out to surround on 934 outer surface of the second sliding block outside 9 top end surface of brushing body and is installed with limited block 938, institute It states to be rotatably assorted in second sliding block 934 of 938 upside of limited block and is connected with the extended Coupling Shaft 939 in left and right, it is described 939 left side extending end of Coupling Shaft extends to the upper side position of the deep gouge 95 and end is installed with and stretches into the deep gouge 95 First cone pulley 9392, the 939 right side extending end of Coupling Shaft are extended on top position and the outer surface of the stock chest 91 Rotary broom 9391 is circumferentially installed with, the bottom position on 931 right side of the first sliding block, which is installed with, to be stretched into first cavity 92 Articulated section 933, be slidably connected with the first slider guide 962 in first guide runner 96, first slider guide 962 pushes up Compression bar 963,962 screw-internal thread fit of the first slider guide connection are hingedly connected between portion and the articulated section 933 There is left and right to be extended the first screw rod 961, be equipped in the brushing body 9 in first guide runner, 96 left side to it is described The drive control assembly that first cone pulley 9392 and 961 power of the first screw rod are connected, in the drive control assembly It is additionally provided with and holds protection unit.

Valuably, the drive control assembly includes 9 inner wall of brushing body for being arranged on 95 lower section of deep gouge Interior transmission mechanism and the adjusting driving mechanism being arranged in the deep gouge 95 so as to fulfill the rate that automatically controls, are improved and are brushed Working efficiency and stability.

Valuably, the transmission mechanism includes being arranged on second cavity 94 of 95 bottom of deep gouge, be rotatably assorted It connects the second cone pulley 942 being arranged on 94 inner roof wall of the second cavity and the connection that is rotatably assorted is arranged on second chamber The third cone pulley 941 of connection, 94 right end of the second cavity are engaged on 94 right side inner wall of body and with second cone pulley 942 It is oppositely arranged with 96 left distal end of the first guide runner, the brushing between second cavity 94 and first guide runner 96 It is rotatably assorted in 9 inner wall of body and is connected with the extended first rotating shaft 943 in left and right, 943 left side of first rotating shaft extends End is stretched into second cavity 94 and is fixedly connected with 941 right-hand end of third cone pulley, 943 right side of first rotating shaft Extending end is stretched into first guide runner 96 and is fixedly connected with the 961 left side extending end of the first screw rod, and described the One screw rod, 961 right side extending end is rotatably assorted with the 96 right side inner wall of the first guide runner and connect, the deep gouge 95 with it is described It is rotatably assorted in 9 inner wall of brushing body between second cavity 94 and is connected with the second extended up and down shaft 944, Second shaft, the 944 top extending end is stretched into the deep gouge 95 and end is installed with male splined shaft 945, described second turn 944 bottom extending end of axis is stretched into second cavity 94 and is fixedly connected with 942 top end surface of the second cone pulley.

Valuably, it is described adjusting driving mechanism include be arranged on the second guide runner 97 in the 95 right side inner wall of deep gouge with And sliding connection is arranged on the second extended in second guide runner 97 and to the left slider guide 973, described the 973 screw-internal thread fit of the second slider guide in two guide runners 97 is connected with the second extended up and down screw rod 971, described Second screw rod, 971 top extending end is rotatably assorted with 97 inner roof wall of the second guide runner and connect, 971 bottom of the second screw rod Portion's extending end and 972 power of the first motor are connected, and 972 outer surface of the first motor is embedded in second guide runner 97 It in inner bottom wall and is fixedly connected, the 973 left side extended segment of the second slider guide is stretched into the deep gouge 95 and is fixedly provided with the Two motors 9731, the 9731 top end surface power connector of the second motor, which has, stretches out outside 973 top end surface of the second slider guide And the 4th cone pulley 9732 to engage connection with first cone pulley 9392, the 9731 bottom end face power of the second motor connect It is connected to and stretches out internal spline outside 973 bottom end face of the second slider guide and to be connected with the male splined shaft 945 Axle sleeve 9733, so as to fulfill the stretching work for being stained with material work and the brushing of rotary broom 9391 of auto-changeover control rotary broom 9391 Make, improve work efficiency.

Valuably, the protection unit that holds includes vibration damper plate 9735 and drop backing 9736, and the vibration damper plate 9735 is arranged on institute It states the left end of the second motor 9731 in drive control assembly and right end and is fixedly connected with second motor 9731, the drop Backing 9736 is arranged on the front-end and back-end of second motor 9731 and is fixedly connected with second motor 9731, the drop Backing 9736 is to absorb and distribute the heat that second motor 9731 generates at runtime, and the vibration damper plate 9735 is subtracting What the shaking force that few second motor 9731 generates at runtime generated at runtime so as to prevent second motor 9731 Shaking force is excessive and second slider guide 973 is caused to be shaken.

During original state, the second sliding block 934 is made the second sliding block 934 drive the left and right sides by 935 pressure on top surface of top pressure spring Slide guide chamber 936 slide into the top position in slide guide head 937, meanwhile, the first slider guide 962 is made to be located at the first guide runner 96 Interior right-most position, at this point, the first sliding block 931 is driven to slide into the first sliding groove by the compression bar 963 on the first slider guide 962 Lowest position in 93, meanwhile, the limited block 938 and brushing body 9 on the second sliding block 934 are driven by the first sliding block 931 Top end surface abuts against, at this point, driving the first cone pulley 9392 of 939 left side extending end of Coupling Shaft maximum by the second sliding block 934 Degree is stretched into deep gouge 95, meanwhile, the rotary broom on 939 left side extended segment outer surface of Coupling Shaft is driven by the second sliding block 934 9391 bottom ends are utmostly stretched into stock chest 91, at this point, the second slider guide 973 is located at the top in the second guide runner 97 Position, meanwhile, the 4th cone pulley 9732 in top end surface is driven to engage with the first cone pulley 9392 by the second slider guide 973 and is connect, At this point, the internal splined shaft bushing 9733 on bottom end face is driven utmostly far from male splined shaft 945 by the second slider guide 973.

When roof needs brushing work, brushing body 9 is utmostly extended to below roof by lifting support frame body 8 Then position drives the 4th cone pulley 9732 to rotate, and then drive the first cone pulley by the 4th cone pulley 9732 by the second motor 9731 9392 rotations, at this point, the rotary broom 9391 for driving 939 right side section of Coupling Shaft 939 and Coupling Shaft by the first cone pulley 9392 rotates, Rotary broom 9391 is made utmostly to be stained with material work, the second motor 9731 of control stops operating after the completion of material is stained with, then, by First motor 972 drives the second screw rod 971 to rotate, and drives the second slider guide 973 gradually along the second guide runner by the second screw rod 971 Bottom direction in 97 is slided, at this point, the 4th cone pulley 9732 in 973 top end surface of the second slider guide is made to be gradually distance from the first cone Wheel 9392, meanwhile, the internal splined shaft bushing 9733 on 973 bottom end face of the second slider guide is made to move closer to male splined shaft 945, until When second slider guide 973 slides into the lowest position in the second guide runner 97, at this point, the second slider guide 973 drives the 4th cone 9732 are taken turns utmostly far from the first cone pulley 9392, meanwhile, the second slider guide 973 is made to drive internal splined shaft bushing 9733 and external splines 945 fully mated connection of axis at this point, the first motor 972 of control stops operating, then drives internal spline by the second motor 9731 Axle sleeve 9733 rotates, and then male splined shaft 945 is driven to rotate by internal splined shaft bushing 9733, and drives second by male splined shaft 945 Second cone pulley 942 of 944 and second shaft of shaft, 944 bottom rotates, and then drives third cone pulley 941 by the second cone pulley 942 Rotation, and first rotating shaft 943 and the first spiral shell being fixedly connected with 943 right end of first rotating shaft are driven by third cone pulley 941 Bar 961 rotates, at this point, left direction of first slider guide 962 gradually into the first guide runner 96 is driven to slide from the first screw rod 961 It is dynamic, meanwhile, the first sliding block 931 on articulated section 933 and articulated section 933 is driven by the compression bar 963 on the first slider guide 962 It is gradually slided along the top-direction in the first sliding groove 93, at this point, driving 934 upward sliding of the second sliding block by the first sliding block 931, together When, the first cone pulley 9392 for driving 939 left side extending end of Coupling Shaft by the second sliding block 934 is gradually distance from deep gouge 95, at this point, The rotary broom 9391 on 939 right side extended segment outer surface of Coupling Shaft is driven to be gradually distance from stock chest 91 by the second sliding block 934, directly It is abutted against to 9391 top end surface of rotary broom with building roof, the second motor 9731 is controlled to stop operating at this time, then passes through shifting Dynamic lifting support frame body 8 realizes uniform brushing work, when the first slider guide 962 slides into the position of the leftmost side in the first guide runner 96 When putting, at this point, 934 top section of the second sliding block is driven utmostly to stretch out the top end surface of brushing body 9 by the first sliding block 931 Outside.

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

Claims

1. a kind of novel painting device for building roof brushing including lifting support frame body and is fixedly mounted on described Brushing body in lifting support frame body top end surface, it is characterised in that：It is equipped in the right hand top end face of the brushing body Stock chest is equipped with deep gouge, the painting between the deep gouge and the stock chest in the left side top end face of the brushing body It is equipped with the first sliding groove for extending downwardly setting in brush body top end surface, wall body in the machine for brushing body of the storing trench bottom It is interior to connect the first cavity set with the first sliding groove bottom extended segment equipped with left-hand end, the interior bottom on the right side of first cavity The first guide runner is equipped in wall, the first sliding block, the first slider top end face are slidably connected in the first sliding groove It is interior to be equipped with the second sliding slot for extending downwardly setting, the second cunning for upwardly extending setting is slidably connected in the second sliding slot Block, top pressure is connected with top pressure spring, the second sliding slot or so two in the second sliding slot of second slider bottom Slide guide chamber is equipped in the inner wall of side, the slide guide intracavitary is slidably connected with the slide guide being fixedly connected with second sliding block Head, the second slider top extended segment are stretched out after the first sliding groove outside the top end surface of the brushing body, stretch out institute It states to surround on second outside face thereof outside brushing body top end surface and is installed with limited block, the institute on the upside of the limited block It states to be rotatably assorted in the second sliding block and is connected with the extended Coupling Shaft in left and right, extending end extends to institute on the left of the Coupling Shaft It states the upper side position of deep gouge and end is installed with the first cone pulley stretched into the deep gouge, extending end prolongs on the right side of the Coupling Shaft It extends to and rotary broom is circumferentially installed on the top position of the stock chest and outer surface, the bottom position on the right side of first sliding block The articulated section stretched into first cavity is installed with, the first slider guide, institute are slidably connected in first guide runner It states and is hingedly connected with compression bar, the first slider guide screw-internal thread fit between the articulated section at the top of the first slider guide It is connected with left and right and is extended the first screw rod, be equipped in the machine for brushing body on the left of first guide runner to described the The drive control assembly that one cone pulley and the first screw rod power are connected is additionally provided in the drive control assembly and holds Protection unit.

2. a kind of novel painting device for building roof brushing according to claim 1, it is characterised in that：It is described Drive control assembly includes being arranged on the transmission mechanism in the machine for brushing body below the deep gouge in wall body and being arranged on Adjusting driving mechanism in the deep gouge.

3. a kind of novel painting device for building roof brushing according to claim 2, it is characterised in that：It is described Transmission mechanism is including being arranged on second cavity of the deep gouge bottom, the connection that is rotatably assorted is arranged in second cavity The second cone pulley and the connection that is rotatably assorted on roof be arranged on the right side of second cavity on inner wall and with second cone pulley The third cone pulley of connection is engaged, the second cavity right end is oppositely arranged with the first guide runner left distal end, and described second It is rotatably assorted in wall body in the machine for brushing body between cavity and first guide runner and is connected with left and right is extended the One shaft, first rotating shaft left side extending end, which is stretched into second cavity and fixed with the third cone pulley right-hand end, to be connected It connects, extending end is stretched into first guide runner and consolidated with extending end on the left of first screw rod on the right side of the first rotating shaft Fixed connection, the first screw rod right side extending end is rotatably assorted with inner wall on the right side of first guide runner to be connect, the deep gouge It is rotatably assorted in wall body in the machine for brushing body between second cavity and is connected with the second extended up and down shaft, Extending end is stretched into the deep gouge at the top of second shaft and end is installed with male splined shaft, and the second shaft bottom is prolonged End is stretched to stretch into second cavity and be fixedly connected with the second cone pulley top end surface.

4. a kind of novel painting device for building roof brushing according to claim 3, it is characterised in that：It is described Driving mechanism is adjusted to include the second guide runner being arranged in the inner wall of the deep gouge right side and be slidably connected to be arranged on institute The second extended in the second guide runner and to the left slider guide is stated, in second slider guide in second guide runner Thread fitting is connected with the second extended up and down screw rod, the second screw tip extending end and second guide runner Inner roof wall is rotatably assorted connection, and the second screw rod bottom extending end and the first motor power are connected, first electricity Machine outer surface is in the second guide runner inner bottom wall and is fixedly connected, and extended segment is stretched into described on the left of second slider guide In deep gouge and the second motor is fixedly provided with, the second motor top end surface power connector, which has, stretches out the second slider guide top End surface is outer and to engage the 4th cone pulley connected with first cone pulley, and the second motor bottom end face power connector has Stretch out internal splined shaft bushing outside the second slider guide bottom end face and to be connected with the male splined shaft.

5. a kind of novel painting device for building roof brushing according to claim 1, it is characterised in that：It is described It holds protection unit and includes vibration damper plate and drop backing, the vibration damper plate is arranged on the left end of the second motor in the drive control assembly Be fixedly connected with right end and with second motor, it is described drop backing be arranged on second motor front-end and back-end and with institute The second motor is stated to be fixedly connected.