CN206965945U - A kind of pulling bag drive device for rotating bag-pulling centrifuge - Google Patents

Abstract

The utility model discloses a kind of pulling bag drive device for rotating bag-pulling centrifuge, including the Inner axles being co-axially located in centrifuge principal axis, Inner axles can be relative to main axis, the both ends of Inner axles are stretched out outside main shaft, Inner axle positions are connected with rotating disk in one end end in rotary drum, the external diameter of rotating disk is less than rotary drum internal diameter, Inner axle other ends end is fixedly connected with gear, a push-and-pull power set are fixedly connected with the base of centrifuge, the push-and-pull power set are arranged along gear tooth tangent direction, the expansion link front end of push-and-pull power set is axially connected with a toothed rack, the rack and pinion engages, when expansion link shrinks, rack can separate with gear.It is driven by the high accuracy of rack-and-pinion, drive Inner axles and be connected to the rotating disk rotation of Inner shaft ends, due to improving transmission accuracy, the rotational angle of rotating disk can be controlled by controlling the mobile range of rack, reach the technical goal of flexibly control rotating disk rotational angle.

Description

A kind of pulling bag drive device for rotating bag-pulling centrifuge

Technical field

The utility model belongs to centrifuge manufacturing field, relates generally to a kind of pulling bag driving dress for rotating bag-pulling centrifuge Put.

Background technology

Bag-pulling centrifuge is rotated when discharging if only by scraper discharging, it is difficult to which the material on filter cloth is cleared up Totally, Application No.：2016101154487th, it is entitled：The invention of the remaining filter cake remove device of scraper type centrifuge is special A kind of method of the material on further cleaning filter cloth is disclosed in sharp application documents, and is rotated by the Inner axles in main shaft, band The rotary flange disk (rotating disk i.e. in the utility model) for moving its upper end rotates, and is further driven to be connected to outside rotary flange disk The filter cloth lower rotation of edge, makes filter cloth reverse to form fold, the material further cleared up on filter cloth.

The drive device of Inner axles disclosed in above-mentioned application documents, because the motion bar of its rotation cylinder passes through the company of rotation Fishplate bar is connected with second flange disk, therefore the anglec of rotation of second flange disk is not easily controlled, and ultimately results in rotary flange disk The anglec of rotation be not easily controlled, and the drive device installation and maintenance are inconvenient, are unfavorable for clean manufacturing.

Utility model content

Technical problem to be solved in the utility model is：There is provided one kind can flexibly control the rotating disk anglec of rotation, so as to The flexibly pulling bag drive device of the rotation bag-pulling centrifuge of the filter cloth fold degree of the control filter cloth lower end anglec of rotation.

In order to solve the above technical problems, the first technical scheme that the utility model uses is：One kind rotation pulling bag centrifugation The pulling bag drive device of machine, including the Inner axles being co-axially located in centrifuge principal axis, Inner axles can relative to main axis, Inner axles Both ends are stretched out outside main shaft, and wherein one end is stretched into the rotary drum of centrifuge, and Inner axle positions are connected with rotation in one end end in rotary drum Rotating disk, rotating disk are set along rotary drum inner bottom surface, and the external diameter of rotating disk is less than rotary drum internal diameter, and the Inner axles other end end, which is fixed, to be connected Gear is connected to, a push-and-pull power set are fixedly connected with the base of centrifuge, the push-and-pull power set are along gear tooth tangent direction Arrangement, the expansion link front end of push-and-pull power set are axially connected with a toothed rack, rack and pinion engagement, when expansion link shrinks When, the rack can separate with gear.

As a kind of preferable scheme, one end fixed cover of above-mentioned main shaft towards driven pulley is connected to spindle pulley, The spindle pulley is relative with gear, and the stopping means includes being arranged on spindle pulley towards first on the end face of gear Limited block, and gear is arranged on towards the second limited block on the end face of spindle pulley, first limited block and second Limited block is inconsistent along the tangential direction of gear, and second limited block can rotate around the spindle relative to the first limited block.

In order to solve the above technical problems, the utility model says that second of the technical scheme used is：One kind rotation pulling bag from The pulling bag drive device of scheming, including the Inner axles being co-axially located in centrifuge principal axis, Inner axles can be relative to main axis, Inner axles Both ends stretch out outside main shaft, wherein one end is stretched into the rotary drum of centrifuge, and Inner axle positions are connected with one end end in rotary drum Rotating disk, rotating disk are set along rotary drum inner bottom surface, and the external diameter of rotating disk is less than rotary drum internal diameter, set between main shaft and the Inner axle Limited location device, the stopping means can control main shaft with Inner axles synchronous axial system or each independent rotation, the motor of centrifuge Output shaft end is rotatably connected to rotary shaft, and the output shaft of the rotary shaft and motor is coaxially disposed, fixed cover in rotary shaft Be connected to a gear and a driving belt pulley, the Inner axles other end end set have be engaged with driving belt pulley it is driven Belt pulley, the driving belt pulley are connected with driven pulley by belt transmission, are fixedly connected with the centrifugal base One push-and-pull power set, the push-and-pull power set arrange that the expansion link front end of push-and-pull power set is axial along gear tooth tangent direction A toothed rack is connected with, rack and pinion engagement, when expansion link shrinks, the rack can separate with gear.

As a kind of preferable scheme, one end fixed cover of the main shaft towards driven pulley is connected to spindle pulley, The spindle pulley is relative with driven pulley, and the stopping means includes being arranged on spindle pulley towards driven pulley The first limited block on end face, and driven pulley is arranged on towards the second limited block on the end face of spindle pulley, institute It is inconsistent along the tangential direction of driven pulley with the second limited block to state the first limited block, second limited block can be relative to One limited block rotates around the spindle.

As a kind of preferable scheme, a rack sliding sleeve is additionally provided with above-mentioned centrifugal base, the rack slides It is arranged in rack sliding sleeve, offers engaging hole in the middle part of the rack sliding sleeve, the gear is located at outside engaging hole, through engagement Engaged with the rack in rack sliding sleeve in hole.

As a kind of preferable scheme, a braking is fixedly connected with the main shaft of centrifuge or the drive shaft of motor Wheel, the radial direction side of braked wheel are provided with the earring seats being fixedly connected on centrifugal base, and opposite side is provided with one Along the push-and-pull power set of braked wheel radial arrangement, the expansion links of the push-and-pull power set is towards the axle center of braked wheel, the system Two opposed semicircle brake hoops are surrounded with outside driving wheel, the head and the tail both ends of each brake hoop are respectively arranged with an engaging lug Ring, the connecting lug of two brake hoops one end close to each other are rotatably connected on earring seats by bearing pin, and two brake hoops mutually connect Connecting rod is connected with by bearing pin respectively on the earrings of the near other end, the one end of two connecting rods away from earrings is overlapped and passes through one Root connecting pin is connected on a contiguous block, and the contiguous block is fixedly connected with the expansion link front end of push-and-pull power set.

The beneficial effects of the utility model are：It is driven by the high accuracy of rack-and-pinion, drives Inner axles and be connected to Inner The rotating disk of shaft end rotates, and due to improving transmission accuracy, can control rotating disk by controlling the mobile range of rack Rotational angle, reach the technical goal of flexibly control rotating disk rotational angle, so as to flexibly control the angle of filter cloth lower end rotation The fold degree of degree and filter cloth its side wall under twisting states.And its drive mechanism is more simple, installation and maintenance are more square Just, the requirement of chemical industry, pharmaceutical industry to clean manufacturing can more be met.

Brief description of the drawings

Fig. 1 is that the utility model the first specific embodiment applies the structural representation on vertical rotating bag-pulling centrifuge Figure；

Fig. 2 is that second of specific embodiment of the utility model applies the structural representation on vertical rotating bag-pulling centrifuge Figure；

Fig. 3 is the A-A sectional views in Fig. 1；

Fig. 4 is the C-C sectional views in Fig. 2；

Fig. 5 is the structural representation that rack-and-pinion shown in Fig. 3 or Fig. 4 is in released state；

Fig. 6 is the B direction views in Fig. 1；

Fig. 7 is that second of specific embodiment of the utility model applies the structural representation on horizontal rotary bag-pulling centrifuge Figure.

In Fig. 1~Fig. 7：1st, main shaft, 2, Inner axles, 3, rotary drum, 4, rotating disk, 5, stopping means, 5-1, the first limited block, 5- 2nd, the second limited block, 6, gear, 7, base, 8, push-and-pull power set, 9, rack, 10, motor, 11, rotary shaft, 12, drive Dynamic belt pulley, 13, driven pulley, 14, belt, 15, rack sliding sleeve, 16, engaging hole, 17, braked wheel, 18, earring seats, 19, Brake hoop, 20, connecting lug, 21, bearing pin, 22, connecting rod, 23, connecting pin, 24, contiguous block, 25, spindle pulley, 26, push-and-pull Power set.

Embodiment

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail.

It is the first specific embodiment of the present utility model as shown in Fig. 1,3,5,6, the rotation bag-pulling centrifuge shown in Fig. 1 Pulling bag drive device include being co-axially located at Inner axles 2 in centrifuge principal axis 1, Inner axles 2 can rotate relative to main shaft 1, Inner axles 2 Both ends stretch out outside main shaft 1, wherein one end is stretched into the rotary drum 3 of centrifuge, and Inner axles 2 are located at one end end in rotary drum 3 and connected Rotating disk 4 is connected to, rotating disk 4 is set along the inner bottom surface of rotary drum 3, and the external diameter of rotating disk 4 is less than the internal diameter of rotary drum 3, it is characterised in that institute State and stopping means 5 is provided between main shaft 1 and Inner axles 2, the stopping means 5 can control main shaft 1 and the synchronous axial system of Inner axles 2 or respective Independent to rotate, the other end end of Inner axles 2 is fixedly connected with gear 6, and being fixedly connected with a push-and-pull on the base 7 of centrifuge moves Power apparatus 8, the push-and-pull power set 8 arrange that the expansion link front end of push-and-pull power set 8 axially connects along the tangential direction of gear 6 There is a toothed rack 9, the rack 9 engages with gear 6, as shown in figure 5, when push-and-pull power set 8 control expansion link to shrink, it is described Rack 9 can separate with gear 6, and after rack 9 separates with gear 6, Inner axles 2 can pass through stopping means 5 and the synchronous rotary of main shaft 1.

It is driven by the high accuracy of tooth 6 and wheel rack 9, drives Inner axles 2 and be connected to 4 turns of the rotating disk of the end of Inner axles 2 It is dynamic, due to improving transmission accuracy, the rotational angle of rotating disk 4 can be controlled by controlling the mobile range of rack 6, reached The flexibly technical goal of the control rotational angle of rotating disk 4, so as to flexibly control the angle of filter cloth lower end rotation and filter cloth turning round Turn the fold degree of its side wall under state, by repeatedly, quickly reverse filter cloth, can also improve filter cloth vibration frequency, enter one Step accelerate filter cloth on remaining filter cake depart from filter cloth, by rack pinion another technical effect is that, improve Inner axles and exist Angle range during rotation, expand the controllable section of Inner axle rotational angles.

Wherein push-and-pull power set 8 can be cylinder, oil cylinder or worm and gear, electric pushrod etc..

Above-mentioned drive mechanism is more simple, and installation and maintenance are more convenient, can more meet chemical industry, pharmaceutical industry to clean manufacturing Requirement.

One end fixed cover of the main shaft 1 towards driven pulley 13 is connected to spindle pulley 25, the spindle pulley 25 Relative with gear 6, the stopping means 5 includes being arranged on spindle pulley 25 towards the first limited block on the end face of gear 6 5-1, and gear 6 is arranged on towards the second limited block 5-2, the first limited block 5-1 on the end face of spindle pulley 25 Inconsistent with tangential directions of the second limited block 5-2 along gear 6, the second limited block 5-2 can be relative to the first limited block 5-1 Rotated around main shaft 1.

Stopping means 5 is made up of the first limited block 5-1 and the second limited block 5-2, when main shaft 1 rotates, the first limited block 5-1 and the second limited block 5-2 offsets and with moving gear 6 and the synchronous axial system of Inner axles 2, prevents filter cloth from turning round in the course of the work Turn, when main shaft 1 stops operating, gear 6 can drive Inner axles 2 to be rotated further along the direction of rotation of main shaft under the driving of rack 9, So that filter cloth reverses.

As shown in Figure 1,3, a rack sliding sleeve 15 is additionally provided with centrifugal base 7, the rack 9 is slidably arranged in tooth In bar sliding sleeve 15, the middle part of rack sliding sleeve 15 offers engaging hole 16, and the gear 6, which is located at the outside of engaging hole 16 and passed through, to be nibbled Hole 16 is closed to engage with the rack 9 in rack sliding sleeve 15.

Rack sliding sleeve 15 provides the sufficiently large power engaged with gear 6 to rack 9, prevents the rack 9 of gear 6 from skidding, together When keep rack 9 cleaning, avoid the oil dripping of rack 9.

As shown in Figure 1 or 2, a braked wheel 17 is fixedly connected with the output shaft of the motor 10 of centrifuge, such as Shown in Fig. 7, braked wheel 17 is fixedly connected with the main shaft 1 of centrifuge, with reference to shown in Fig. 6, the radial direction side of braked wheel 17 is set There are the earring seats being fixedly connected on centrifugal base 7 18, opposite side is provided with one along the radial arrangement of braked wheel 17 Push-and-pull power set 26, the expansion link of the push-and-pull power set 26 are surround outside towards the axle center of braked wheel 17, the braked wheel 17 Two opposed semicircle brake hoops 19 are provided with, the head and the tail both ends of each brake hoop 19 are respectively arranged with a connecting lug 20, The connecting lug 20 of two brake hoops 19 one end close to each other is rotatably connected on earring seats 18 by bearing pin 21, two brake hoops 19 Connecting rod 22 is connected with by bearing pin 21 respectively on the connecting lug 20 of the other end close to each other, two connecting rods 22 are away from connecting lug 20 one end is overlapped and is connected to by a connecting pin 23 on a contiguous block 24, and the contiguous block 24 fills with push-and-pull power 26 expansion link front end is put to be fixedly connected.

A braked wheel 17 is fixedly connected with the output shaft of motor 10, when controlling Inner axles 2 to reverse filter cloth, profit Braked wheel 17 is constrained with brake hoop 19 to rotate, and so as to the rotation of Constraints driven motor 10, constrains the rotation of rotary drum 3 indirectly, In the state of rotary drum 3 is fixed, then rotated with moving gear 6 by rack 9, realize the torsion of filter cloth, make filter cloth windup-degree more Accurately, it is more convenient for flexibly controlling.

Wherein push-and-pull power set 26 can be cylinder, oil cylinder or worm and gear, electric pushrod etc..

It is second of specific embodiment of the present utility model as shown in Figure 2, Figure 4 shows, as illustrated, rotation bag-pulling centrifuge Pulling bag drive device, including the Inner axles 2 being co-axially located in centrifuge principal axis 1, Inner axles 2 can rotate relative to main shaft 1, Inner axles 2 Both ends stretch out outside main shaft 1, wherein one end is stretched into the rotary drum 3 of centrifuge, and Inner axles 2 are located at one end end in rotary drum 3 and connected Rotating disk 4 is connected to, rotating disk 4 is set along the inner bottom surface of rotary drum 3, and the external diameter of rotating disk 4 is less than the internal diameter of rotary drum 3, it is characterised in that institute State and stopping means 5 is provided between main shaft 1 and Inner axles 2, the stopping means 5 can control main shaft 1 and the synchronous axial system of Inner axles 2 or respective Independent to rotate, the output shaft end of motor 10 of centrifuge is rotatably connected to rotary shaft 11, the rotary shaft 11 and motor 10 output shaft is coaxially disposed, and fixed cover is connected to a gear 6 and a driving belt pulley 12, the Inner axles 2 in rotary shaft 11 Other end end set has the driven pulley 13 being engaged with driving belt pulley 12, the driving belt pulley 12 and follower belt Wheel 13 is connected by belt 14, a push-and-pull power set 8 is fixedly connected with the centrifugal base 7, the push-and-pull power Device 8 arranges that the expansion link front end of push-and-pull power set 8 is axially connected with a toothed rack 9, the rack 9 along the tangential direction of gear 6 Engaged with gear 6, when push-and-pull power set 8 control expansion link to shrink, the rack 9 can separate with gear 6.

Wherein push-and-pull power set 8 can be cylinder, oil cylinder or worm and gear, electric pushrod etc..

Compared with the first specific embodiment, second of specific embodiment is by rack 9 and the push-and-pull moved of driving rack 9 Power set 8 are installed into the side of motor 10, and add rotary shaft 11, driving belt pulley 12, the and of driven pulley 13 Belt 14, in first on the basis of the technique effect of specific embodiment, its second of specific embodiment further optimizes peace Assembling structure, it is easy to gear 6, rack 9, the handling for the push-and-pull power set 8 for driving rack 9 to move and regular maintenance.

As shown in figure 1, one end fixed cover of main shaft 1 towards driven pulley 13 is connected to spindle pulley 25, the main shaft skin Belt wheel 25 is relative with driven pulley 13, and the stopping means 5 includes being arranged on spindle pulley 25 towards driven pulley 13 End face on the first limited block 5-1, and be arranged on driven pulley 13 towards second on the end face of spindle pulley 25 The tangential direction of limited block 5-2, the first limited block 5-1 and the second limited block 5-2 along driven pulley 13 is inconsistent, described Second limited block 5-2 can rotate relative to the first limited block 5-1 around main shaft 1.

A rack sliding sleeve 15 is additionally provided with the centrifugal base 7, the rack 9 is slidably arranged in rack sliding sleeve 15 Interior, the middle part of the rack sliding sleeve 15 offers engaging hole 16, the gear 6 be located at the outside of engaging hole 16 and through engaging hole 16 and Rack 9 in rack sliding sleeve 15 engages.

A braked wheel 17, the radial direction of braked wheel 17 are fixedly connected with the output shaft of the motor 10 of the centrifuge Side is provided with the earring seats being fixedly connected on centrifugal base 7 18, and opposite side is provided with one along the footpath of braked wheel 17 Push-and-pull power set 26 to arrangement, the expansion links of the push-and-pull power set 26 is towards the axle center of braked wheel 17, the braked wheel Two opposed semicircle brake hoops 19 are surrounded with outside 17, the head and the tail both ends of each brake hoop 19 are respectively arranged with a connection Earrings 20, the connecting lug 20 of two brake hoops 19 one end close to each other are rotatably connected on earring seats 18 by bearing pin 21, and two Connecting rod 22 is connected with by bearing pin 21 respectively on the connecting lug 20 of the other end close to each other of brake hoop 19, two connecting rods 22 are remote One end of connecting lug 20 is overlapped and is connected to by a connecting pin 23 on a contiguous block 24, and the contiguous block 24 is with pushing away The expansion link front end of power apparatus 26 is pulled to be fixedly connected.

Wherein push-and-pull power set 26 can be cylinder, oil cylinder or worm and gear, electric pushrod etc..

The technique effect of second of specific embodiment is identical with the technique effect of the first specific embodiment, therefore, herein Repeat no more.

Operation principle of the present utility model is：By taking second of embodiment as an example, as shown in Figure 2 and Figure 5, work as centrifugation During confidential normal work, filter cloth upper end is fixedly connected on rotary drum upper end first, filter cloth lower end is fixedly connected on outside rotating disk Edge, then push-and-pull power set 26 are controlled to drive two brake hoops 19 to open, brake hoop 19 departs from braked wheel 17, push-and-pull power set 8 driving racks 9 bounce back to be departed from gear 6, and now filter cloth is in normal condition, the first limited block 5-1 and the second limited block 5-2 Offset, then start motor 10, motor 10 drives spindle pulley 25 to rotate, and spindle pulley 25 drives main shaft 1 And rotary drum 3 rotates, the first limited block 5-1 on spindle pulley 25 promotes the second limited block 5-2 synchronous axial systems, and second is spacing Block 5-2 drives the synchronous axial system of driven pulley 13, and driven pulley 13 drives Inner axles 2 and the synchronous axial system of rotating disk 4, so as to really When protecting the normal centrifugal operation of centrifuge, its filter cloth is in normal condition, prevents filter cloth from reversing.

After the completion of centrifuge operation, motor 10 stops operating, and rotary drum 3 tapers off rotation, followed by Push-and-pull power set 26 drive two brake hoops 19 to be brought into close contact with braked wheel 17, realize the purpose that limitation braked wheel 17 rotates, so Rack 9 is pushed out to by push-and-pull power set 8 afterwards and engaged with gear 6, continues to press on rack 9, rotates gear 6, gear 6 Rotate and drive driving belt pulley 12 to rotate, driving belt pulley 12 drives driven pulley 13 to rotate by belt 14, follower belt The rotation direction of wheel 13 is consistent with the rotation direction of rotary drum 3, and such first limited block 5-1 will not cause to the second limited block 5-2 Stop, driven pulley 13 drives Inner axles 2 and the synchronous axial system of rotating disk 4, and now filter cloth upper end is fixed on the upper end of rotary drum 3, protects Transfixion is held, filter cloth lower end is fixed on the outer rim of rotating disk 4, follows rotating disk 4 to rotate, so that filter cloth twists, filter Cloth side wall produces fold, and the filter cake on its inwall departs from filter cloth under crimp, removes the filter cake on filter cloth.

In order to further improve the effect for removing the filter cake on filter cloth, rack 9 can be stretched back and forth, makes filter cloth high-frequency Reverse, produce larger vibrations, shake off the filter cake on filter cloth.

The operation principle of the first specific embodiment and the operation principle of second of specific embodiment are essentially identical, therefore not Repetitive description is done again, and the course of work of the first specific embodiment is compared with the course of work of second of specific embodiment, only The step of being driven by rotary shaft 11, driving belt pulley 12, driven pulley 13 and belt 14 is the reduction of, remaining is homogeneous Together.

A kind of pulling bag drive device for rotating bag-pulling centrifuge described in the utility model, can not only be applied to vertical rotation Turn on bag-pulling centrifuge and horizontal rotary bag-pulling centrifuge, other types, the rotation bag-pulling centrifuge of specification can also be applied to On.

The principle and its effect that above-described embodiment only illustrative the utility model is created, and the implementation that part uses Example, not for limitation the utility model；It should be pointed out that for the person of ordinary skill of the art, this reality is not being departed from On the premise of being conceived with new creation, various modifications and improvements can be made, these belong to protection model of the present utility model Enclose.

Claims (7)

1. a kind of pulling bag drive device for rotating bag-pulling centrifuge, including the Inner axles being co-axially located in centrifuge principal axis (1) (2), Inner axles (2) can rotate relative to main shaft (1), and main shaft (1) is stretched out outside in the both ends of Inner axles (2), and wherein centrifugation is stretched into one end In the rotary drum (3) of machine, one end end that Inner axles (2) are located in rotary drum (3) is connected with rotating disk (4), and rotating disk (4) is along rotary drum (3) inner bottom surface is set, and the external diameter of rotating disk (4) is less than rotary drum (3) internal diameter, it is characterised in that the main shaft (1) and Inner axles (2) Between be provided with stopping means (5), the stopping means (5) can control main shaft (1) and Inner axles (2) synchronous axial system or each independent turn Dynamic, Inner axles (2) other end end is fixedly connected with gear (6), and being fixedly connected with a push-and-pull on the base (7) of centrifuge moves Power apparatus (8), the push-and-pull power set (8) along gear (6) tangential direction arrange, the expansion link front end of push-and-pull power set (8) A toothed rack (9) axially is connected with, the rack (9) engages with gear (6), when push-and-pull power set (8) control expansion link shrinks When, the rack (9) can separate with gear (6).

2. a kind of pulling bag drive device for rotating bag-pulling centrifuge, including the Inner axles being co-axially located in centrifuge principal axis (1) (2), Inner axles (2) can rotate relative to main shaft (1), and main shaft (1) is stretched out outside in the both ends of Inner axles (2), and wherein centrifugation is stretched into one end In the rotary drum (3) of machine, one end end that Inner axles (2) are located in rotary drum (3) is connected with rotating disk (4), and rotating disk (4) is along rotary drum (3) inner bottom surface is set, and the external diameter of rotating disk (4) is less than rotary drum (3) internal diameter, it is characterised in that the main shaft (1) and Inner axles (2) Between be provided with stopping means (5), the stopping means (5) can control main shaft (1) and Inner axles (2) synchronous axial system or each independent turn Dynamic, motor (10) output shaft end of centrifuge is rotatably connected to rotary shaft (11), the rotary shaft (11) and motor (10) output shaft is coaxially disposed, and fixed cover is connected to a gear (6) and a driving belt pulley (12), institute in rotary shaft (11) Stating Inner axles (2) other end end set has the driven pulley (13) being engaged with driving belt pulley (12), the drive belt Take turns (12) to be connected by belt (14) with driven pulley (13), being fixedly connected with one on the centrifugal base (7) pushes away Power apparatus (8) is pulled, the push-and-pull power set (8) are arranged along gear (6) tangential direction, the expansion link of push-and-pull power set (8) Front end is axially connected with a toothed rack (9), and the rack (9) engages with gear (6), when push-and-pull power set (8) control expansion link During contraction, the rack (9) can separate with gear (6).

A kind of 3. pulling bag drive device for rotating bag-pulling centrifuge according to claim 1, it is characterised in that the main shaft (1) spindle pulley (25) is connected to towards one end fixed cover of driven pulley (13), the spindle pulley (25) and gear (6) Relatively, the stopping means (5) includes being arranged on spindle pulley (25) towards the first limited block on the end face of gear (6) (5-1), and gear (6) is arranged on towards the second limited block (5-2) on the end face of spindle pulley (25), first limit Position block (5-1) and tangential direction of the second limited block (5-2) along gear (6) are inconsistent, and second limited block (5-2) can be relative Rotated in the first limited block (5-1) around main shaft (1).

A kind of 4. pulling bag drive device for rotating bag-pulling centrifuge according to claim 2, it is characterised in that the main shaft (1) spindle pulley (25) is connected to towards one end fixed cover of driven pulley (13), the spindle pulley (25) and driven skin Relatively, the stopping means (5) includes being arranged on end face of the spindle pulley (25) towards driven pulley (13) belt wheel (13) On the first limited block (5-1), and be arranged on driven pulley (13) towards second on the end face of spindle pulley (25) Limited block (5-2), first limited block (5-1) and tangential direction phase of the second limited block (5-2) along driven pulley (13) Contradict, second limited block (5-2) can rotate relative to the first limited block (5-1) around main shaft (1).

5. a kind of pulling bag drive device for rotating bag-pulling centrifuge according to claim 1 or 2, it is characterised in that described A rack sliding sleeve (15) is additionally provided with centrifugal base (7), the rack (9) is slidably arranged in rack sliding sleeve (15), Engaging hole (16) is offered in the middle part of the rack sliding sleeve (15), the gear (6) is located at engaging hole (16) outside and passes through engagement Engaged with the rack (9) in rack sliding sleeve (15) in hole (16).

6. according to a kind of pulling bag drive device of any described rotation bag-pulling centrifuge of Claims 1 to 4, it is characterised in that A braked wheel (17), braked wheel are fixedly connected with the main shaft (1) of the centrifuge or the output shaft of motor (10) (17) radial direction side is provided with an earring seats being fixedly connected on centrifugal base (7) (18), and opposite side is provided with one The individual push-and-pull power set (26) along braked wheel (17) radial arrangement, the expansion links of the push-and-pull power set (26) is towards braked wheel (17) axle center, the braked wheel (17) are surrounded with two opposed semicircle brake hoops (19), each brake hoop (19) outside Head and the tail both ends be respectively arranged with a connecting lug (20), the connecting lug (20) of two brake hoops (19) one end close to each other It is rotatably connected on by bearing pin (21) on earring seats (18), the connecting lug (20) of two brake hoops (19) other end close to each other Upper to be connected with connecting rod (22) by bearing pin (21) respectively, the one end of two connecting rods (22) away from connecting lug (20) is overlapped and leads to Cross a connecting pin (23) to be connected on a contiguous block (24), the expansion link of the contiguous block (24) and push-and-pull power set (26) Front end is fixedly connected.

A kind of 7. pulling bag drive device for rotating bag-pulling centrifuge according to claim 5, it is characterised in that the centrifugation A braked wheel (17), the radial direction of braked wheel (17) are fixedly connected with the main shaft (1) of machine or the output shaft of motor (10) Side is provided with an earring seats being fixedly connected on centrifugal base (7) (18), and opposite side is provided with one along braked wheel (17) the push-and-pull power set (26) of radial arrangement, the axle of the expansion links of the push-and-pull power set (26) towards braked wheel (17) The heart, the braked wheel (17) are surrounded with two opposed semicircle brake hoops (19), the head and the tail two of each brake hoop (19) outside End is respectively arranged with a connecting lug (20), and the connecting lug (20) of two brake hoops (19) one end close to each other passes through bearing pin (21) it is rotatably connected on earring seats (18), leads to respectively on the connecting lug (20) of two brake hoops (19) other end close to each other Cross bearing pin (21) and be connected with connecting rod (22), the one end of two connecting rods (22) away from connecting lug (20) is overlapped and passes through a company Pin (23) is connected on a contiguous block (24), and the expansion link front end of the contiguous block (24) and push-and-pull power set (26) is fixed Connection.