CN104316397B - Bistable state direct-drive type durometer main shaft adds off-load unit - Google Patents
Bistable state direct-drive type durometer main shaft adds off-load unit Download PDFInfo
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- CN104316397B CN104316397B CN201410617454.3A CN201410617454A CN104316397B CN 104316397 B CN104316397 B CN 104316397B CN 201410617454 A CN201410617454 A CN 201410617454A CN 104316397 B CN104316397 B CN 104316397B
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Abstract
The invention discloses a kind of bistable state direct-drive type durometer main shaft and add off-load unit, including adding unloading mechanism, mainshaft mechanism, wherein: the ball-screw one end adding in unloading mechanism is provided with valve piston, and ball-screw coordinates with screw；Adapter sleeve is arranged between bearing holder (housing, cover) and protheca, and one end of this adapter sleeve is connected with bearing holder (housing, cover), and its other end and protheca all stretch in elbow inner chamber；Being provided with big piston in large tank intracoelomic cavity in mainshaft mechanism, the big piston-rod lower end being arranged with spring is fixed with sensor connection dish, sensor and pressure head；The inner chamber of protheca and elbow is communicated with the large tank intracoelomic cavity being packed in below elbow by the oilhole on elbow.The present invention is capable of main shaft and adds unloading function, adds unloading mechanism, mainshaft mechanism is respectively stable slackless arrangement, and the two is directly connected to into a position organic whole accurately, it is not necessary to carries out loaded down with trivial details mutual alignment and adjusts；And travel of spindle is big, and delicate structure, volume are little, antivibration good buffer effect, measuring accuracy is high.
Description
Technical field
The present invention relates to durometer manufacturing technology field, be specifically related to a kind of bistable state direct-drive type durometer main shaft and add off-load unit.
Background technology
Conventional electrical reinforcing durometer is mainly made up of three separate mechanisms, is mainshaft mechanism, leverage respectively, adds unloading mechanism.These three mechanisms are separately mounted in scleroscopic frame, by the connection in frame, the position of each self-adjusting self or attitude, it is achieved tram mutual between three mechanisms.Wherein:
(1) add unloading mechanism to be mainly made up of ball-screw vice mechanism, guiding rotation preventive mechanism, bracket institution, buffer gear, motor and motor mounting rack mechanism etc..Its function is to produce power and transfer power on leverage.In order to ensure that the power produced can the most shock-free be delivered on leverage, the direction of motion of ball screw assembly, must be parallel with the direction of motion guiding spline, and the kinematic pair fit clearance guiding rotation preventive mechanism must keep enough accuracy.
Its main deficiency is: structure is complicated, and volume is big；Stationarity and the accuracy of loading are poor, have impact on scleroscopic measuring accuracy.
(2) leverage is mainly made up of lever, lever shaft, power transmission knife, bearing etc., and its function is to be delivered on mainshaft mechanism through lever amplification by the power adding unloading mechanism.In order to ensure that the power adding unloading mechanism is accurately delivered on mainshaft mechanism by lever energy, the lever ratio of leverage must accurately, and the accuracy of manufacture requires higher, and the application point of power transmission knife must be sharp, durable, has long-time stability.
Its main deficiency is: when travel of spindle requires big, it is necessary to increasing travel of spindle by strengthening the pendulum angle of leverage, such leverage just creates bigger radial force to mainshaft mechanism.Even if it is the most accurate that the lever ratios of leverage etc. make, the power adding unloading mechanism is also difficult to accurately be delivered on mainshaft mechanism, in addition to the power transmission knife of leverage is easily damaged, radial force also friction to main shaft that mainshaft mechanism is produced by it creates considerable influence, even damages main shaft.Leverage can only use in the range of less angle of oscillation as can be seen here, the most also can only realize less travel of spindle.
The whole edge of a knife of the power transmission knife in leverage steadily must contact on total length with the load edge bearing in mainshaft mechanism, and is afraid of vibration, easily by external environmental interference；Mutual alignment between power transmission knife and load edge bearing needs repeatedly to debug, and troublesome poeration adds labor intensity.
(3) mainshaft mechanism is mainly made up of main shaft, spindle drum, leading truck, main spindle's adjustor, holder, load edge bearing etc., and its function is to realize the applying of durometer test force.During in order to ensure that main shaft runs, frictional force is little, and position is accurate, it is achieved the accurate applying of test force, it is necessary to improve the precision of part, and most parts need to process through accurate grinding.But this mainshaft mechanism is a structure having gap after all, bring huge restriction to obtaining high accuracy further.
Its main deficiency is: mainshaft mechanism is independently arranged, has gap, afterburning unstable, easily rocks；Processing component quantity is many, complex process, and manufacturing cost is high.
Summary of the invention
The technical problem to be solved is to provide a kind of bistable state direct-drive type durometer main shaft that can overcome above-mentioned deficiency and adds off-load unit, it is capable of main shaft and adds unloading function, add unloading mechanism, mainshaft mechanism is respectively stable slackless arrangement, the two is directly connected to into a position organic whole accurately, it is not necessary to carries out loaded down with trivial details mutual alignment and adjusts；And travel of spindle is big, and delicate structure, volume are little, easy to operate, antivibration good buffer effect, measuring accuracy is high.
In order to solve above-mentioned technical problem, the present invention takes techniques below scheme:
Bistable state direct-drive type durometer main shaft adds off-load unit, including adding unloading mechanism, mainshaft mechanism, wherein:
Add unloading mechanism and include step drive mechanism, screw, ball-screw, valve piston, adapter sleeve, protheca, elbow, wherein: one end of ball-screw is provided with valve piston, and the two is structure as a whole；This ball-screw coordinates with screw, and this screw is arranged in the inner chamber of bearing holder (housing, cover) by pair of bearings I；Adapter sleeve is arranged between bearing holder (housing, cover) and protheca, and one end of this adapter sleeve is fixing with bearing holder (housing, cover) to be connected, and the annular protrusion being provided with on adapter sleeve is fixing with elbow to be connected, and the other end of this adapter sleeve and protheca all stretch in the inner chamber of elbow；
Mainshaft mechanism includes large tank body, big piston, big piston rod, compression spring, cylinder cover, sensor connection dish, sensor, pressure head, wherein: large tank body is packed in below elbow, is fixed with cylinder cover in the bottom of large tank body；Big piston is installed in large tank intracoelomic cavity, is provided with the inner chamber connected with large tank intracoelomic cavity at Radix Angelicae Dahuricae (Radix Heraclei Scabridi) beyond the Great Wall；Big piston rod being arranged below at big piston, the cylindrical at big piston rod is arranged with compression spring；The lower end of big piston rod is fixed with sensor connection dish, is fixed with sensor, is provided with pressure head by pressure head bar on a sensor on sensor connection dish；
The oilhole that the inner chamber of protheca and elbow is provided with by elbow communicates with the inner chamber of the large tank body being positioned at below elbow and big piston；It is provided with hydraulic oil in the inner chamber of protheca and the inner chamber of elbow, oilhole and large tank body and big piston.
Described step drive mechanism includes motor, small pulley, belt, big belt wheel；Its annexation is: be provided with small pulley on the output shaft of motor, and this small pulley is in transmission connection with the big belt wheel formation being arranged on screw by belt；Motor is arranged on motor cabinet, and this motor cabinet is packed in the bottom of bearing holder (housing, cover).
The inner chamber of described adapter sleeve communicates with the inner chamber of protheca and elbow；The lumen centers line of described bearing holder (housing, cover), screw, adapter sleeve, protheca and elbow is respectively positioned on same straight line.
Described adding, also includes in unloading mechanism guiding rotation preventive mechanism, and this guiding rotation preventive mechanism includes guiding spline seat, screw mandrel, bearing II, nut, packing ring, screw, spline circle；Wherein: be provided with horizontal guide slot guiding on spline seat；One end of screw mandrel is provided with bearing II, and this bearing II is arranged in above-mentioned gathering sill；The other end of this screw mandrel is provided with external screw thread, and the corresponding threaded holes being provided with spline circle closes, and by nut check；The other end of ball-screw is square Step Shaft, and the square through hole being provided with spline circle matches, and spline circle, packing ring are pressed abd fixed on the other end of ball-screw by screw；When ball-screw moves forward and backward, bearing II can be simultaneously movable in above-mentioned horizontal guide slot.
Described adding, also includes oil-bearing structure in unloading mechanism, this oil-bearing structure includes fuel tank, oil nozzle, wherein: fuel tank is arranged on the top of elbow, the space that this fuel tank passes through between oil nozzle and protheca and the adapter sleeve end which is provided with communicates with the inner chamber on protheca and adapter sleeve.
The annular groove face that the upper surface of described compression spring is provided with beyond the Great Wall with Radix Angelicae Dahuricae (Radix Heraclei Scabridi) contacts, and the annular table terrace that its lower surface is provided with cylinder cover contacts.
The central axis of described big piston, big piston rod, cylinder cover, sensor connection dish, sensor, pressure head bar and pressure head is respectively positioned on same straight line.
The working front edge of described valve piston is provided with multiple O-ring seal I, and the outer sealing ring end band in its position is tapered；The other end at valve piston is provided with multiple O-ring seal II.
Also including in described mainshaft mechanism guiding rotation-preventing mechanism, this guiding rotation-preventing mechanism includes cylinder cover, sensor connection dish, the axis of guide, and its annexation is: be correspondingly arranged on a pair pilot hole in the upper end of the lower end of cylinder cover and sensor connection dish；Match with above-mentioned a pair pilot hole respectively in the two ends of this axis of guide.
The centrage of described valve piston is an angle with the centrage of big piston, and this angle is 0 °～90 °.
Compared with the prior art the present invention, has the advantages that
The present invention has the construction features of bistable state, direct-drive type, wherein:
So-called bistable state refers to that the present invention is made up of two stable devices: one, add the unloading mechanism input as power, it is to be constituted a stable slackless arrangement by step drive mechanism, ball-screw, screw, valve piston, sealing ring, bearing I, bearing holder (housing, cover), adapter sleeve, protheca, elbow and guiding rotation preventive mechanism and oil-bearing structure etc., it is achieved that stable power input；They are two years old, mainshaft mechanism is as the actuating station of power, it is to be constituted a stable slackless arrangement by large tank body, big piston, sealing ring, compression spring, cylinder cover, sensor connection dish, sensor, pressure head bar, pressure head and guiding rotation-preventing mechanism etc., it is achieved that the stable output of test force.
So-called direct-drive type refers to add unloading mechanism and as the stable device of the mainshaft mechanism the two of power actuating station as power intake, it is directly connected to the large tank body in mainshaft mechanism via the elbow added in unloading mechanism, so that two stable devices define a position organic whole accurately, adjust without carrying out loaded down with trivial details mutual alignment, assemble and complete can come into operation.
Present configuration is exquisite, volume is little, it is achieved that the long-cherished wish that main shaft gapless, stroke are big, and exquisite completes scleroscopic test principle, and easy to operate, loading exactly, antivibration good buffer effect, and measuring accuracy is high, and labor intensity is low.The present invention only need to be carried out according to conventional machine-building, assembly method, it is not necessary to needs strict to control the mutual alignment between the gap of mechanism, each parts such as spindle unit or attitude etc. as manufacturing of conventional hardness meter again.The present invention is applied on various types of durometer, it is achieved add unloading function.
Accompanying drawing explanation
Fig. 1 is the main TV structure figure of the present invention；
Fig. 2 is the enlarged drawing in A portion in Fig. 1.
Part description in Fig. 1-Fig. 2:
1, motor；1-1, small pulley；2, belt；3, big belt wheel；4, motor cabinet；5, ball-screw；5-1, annular groove；5-2, valve piston；6, screw；7, bearing I；8, bearing holder (housing, cover)；9, sealing ring I；10, sealing ring II；11, adapter sleeve；12, protheca；13, elbow；13-1, oilhole；14, fuel tank；14-1, oil nozzle；15, big piston；15-1, big piston rod；16, large tank body；17, cylinder cover；18, compression spring；19, sensor connection dish；20, sensor；21, pressure head；22, the axis of guide；23, spline seat is guided；23-1, gathering sill；24, bearing II；25, screw mandrel；26, nut；27, screw；28, packing ring；29, spline circle.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the present invention includes adding unloading mechanism, mainshaft mechanism, wherein:
(1) unloading mechanism is added: with reference to Fig. 1, Fig. 2.
The effect adding unloading mechanism is: produces power, and is stably delivered on valve piston by ball-screw by power.Specifically: be to move linearly before and after ball-screw, valve piston by the convert rotational motion of motor.
As shown in Figure 1 and Figure 2, add unloading mechanism include step drive mechanism, screw 6, ball-screw 5, valve piston 5-2, sealing ring I 9, sealing ring II 10, bearing I 7, bearing holder (housing, cover) 8, adapter sleeve 11, protheca 12, elbow 13 and guide rotation preventive mechanism and oil-bearing structure, wherein:
Step drive mechanism includes motor 1, small pulley 1-1, belt 2, big belt wheel 3, motor cabinet 4；Its annexation is: be provided with small pulley 1-1 on the output shaft of motor 1, and this small pulley 1-1 is in transmission connection with big belt wheel 3 formation being arranged on screw 6 by belt 2；Screw 6 coordinates with ball-screw 5, and this screw 6 is arranged in the inner chamber of bearing holder (housing, cover) 8 by pair of bearings I 7.Motor 1 is arranged on motor cabinet 4, and this motor cabinet 4 is packed in the bottom of bearing holder (housing, cover) 8.Certainly, step drive mechanism also can be replaced by servo-actuating device.
As it is shown in figure 1, be provided with valve piston 5-2 in one end of ball-screw 5, the two is structure as a whole.Valve piston 5-2 is located along the same line with the centrage of ball-screw 5.
The working front edge of valve piston 5-2 is Step Shaft, is provided with multiple O-ring seal I 9, and the outer sealing ring end band in its position is tapered；The other end being connected with ball-screw 5 at valve piston 5-2 is provided with multiple annular groove 5-1, is provided with O-ring seal II 10 in above-mentioned annular groove 5-1.
Adapter sleeve 11 is arranged between bearing holder (housing, cover) 8 and protheca 12；One end of this adapter sleeve 11 is fixing with bearing holder (housing, cover) 8 to be connected, and the annular protrusion being provided with on adapter sleeve 11 is fixing with elbow 13 to be connected, and the other end of this adapter sleeve 11 and protheca 12 all stretch in the inner chamber of elbow 13.The inner chamber of adapter sleeve 11 communicates with the inner chamber of protheca 12 and elbow 13；The lumen centers line of bearing holder (housing, cover) 8, screw 6, adapter sleeve 11, protheca 12 and elbow 13 is respectively positioned on same straight line.The inner chamber assembled by adapter sleeve 11 and protheca 12 and elbow 13 is exactly the working cavities of valve piston；Ball-screw 5 is then equivalent to small piston rod.
The inner chamber of protheca 12 and elbow 13 is communicated with the large tank intracoelomic cavity being positioned at below elbow, big piston cavity by the oilhole 13-1 being vertically provided with on elbow.It is provided with hydraulic oil in the inner chamber of protheca 12 and the inner chamber of elbow 13, oilhole 13-1 and large tank body 16 and big piston 15.
Ball-screw 5 is under the drive of step drive mechanism, and valve piston 5-2 can carry out tandem motion in the adapter sleeve 11 inner chamber with protheca 12.
The outer circumference surface of the protheca 12 matched with elbow 13 and adapter sleeve 11 is provided with multiple annular groove, in above-mentioned annular groove, is provided with O-ring seal.
Include guiding spline seat 23, gathering sill 23-1, bearing II 24, screw mandrel 25, nut 26, screw 27, packing ring 28, spline circle 29 as in figure 2 it is shown, guide rotation preventive mechanism；Wherein:
It is provided with horizontal guide slot 23-1 on spline seat 23 guiding.One end of screw mandrel 25 is provided with bearing II 24, and this bearing II 24 is arranged in above-mentioned gathering sill 23-1；The other end of this screw mandrel 25 is provided with external screw thread, and the center screw being provided with spline circle 29 matches, and is then locked by nut 26.
One end of ball-screw 5 is provided with valve piston 5-2, and its other end is square Step Shaft, and is provided with the screwed hole matched with screw 27；The square through hole that above-mentioned square Step Shaft is provided with spline circle 29 matches.Closed with the corresponding threaded holes on ball-screw 5 by screw 27, thus spline circle 29, packing ring 28 are pressed abd fixed on the other end of ball-screw 5.
When ball-screw 5 moves forward and backward, bearing II 24 can be simultaneously movable in above-mentioned horizontal guide slot 23-1；So that guiding rotation preventive mechanism to play the effect of horizontally-guided and spline, ball-screw 5 can be made to move forward and backward, but can not rotate.
As shown in Figure 1, oil-bearing structure includes fuel tank 14, oil nozzle 14-1, wherein: fuel tank 14 is arranged on the top of elbow 13, the space that this fuel tank 14 passes through between oil nozzle 14-1 and protheca 12 and adapter sleeve 11 end which is provided with communicates with the inner chamber on protheca 12 and adapter sleeve 11.
Certainly, protheca 12 and adapter sleeve 11 can also be structure as a whole, and are provided with for connecting its inner chamber and the oilhole of oil nozzle 14-1.
During off-load, the inner chamber on protheca 12 and adapter sleeve 11 is in negative pressure state, bubble occurs；At this moment, the hydraulic oil in fuel tank 14 is entered in the inner chamber of protheca 12 and adapter sleeve 11 by oil nozzle 14-1, supplements in time.
(2) mainshaft mechanism: with reference to Fig. 1.
As it is shown in figure 1, mainshaft mechanism is capable of the accurate applying of durometer test force, and the accurate control to main shaft loading force value.
Mainshaft mechanism includes large tank body 16, big piston 15, big piston rod 15-1, compression spring 18, cylinder cover 17, sensor connection dish 19, sensor 20, pressure head bar, pressure head 21 and guides rotation-preventing mechanism, wherein:
The large tank body 16 being fixed with in mainshaft mechanism below elbow 13 in adding unloading mechanism, thus realize adding being directly connected to of unloading mechanism and mainshaft mechanism.
Big piston 15 is installed in large tank intracoelomic cavity, big piston 15 is provided with and the inner chamber of large tank body 16 inner space.It is fixed with cylinder cover 17 in the bottom of large tank body 16.
Big piston rod 15-1 being arranged below at big piston 15, the cylindrical at big piston rod 15-1 is arranged with compression spring 18；The annular groove face that the upper surface of this compression spring 18 is provided with big piston 15 contacts, and its lower surface contacts with the annular table terrace on cylinder cover 17.
The lower end of big piston rod 15-1 is through the centre bore on cylinder cover 17 and sensor connection dish 19, and is connected dish 19 with sensor and is solidly installed.Sensor connection dish 19 is fixed with sensor 20, the centre bore of sensor 20 is provided with pressure head bar, pressure head bar is provided with pressure head 21.The central axis of big piston 15, big piston rod 15-1, cylinder cover 17, sensor connection dish 19, sensor 20, pressure head bar and pressure head 21 is respectively positioned on same straight line.
It is respectively arranged with annular groove on the outer circumference surface of big piston 15 and on the inner peripheral surface of cylinder cover 17, in above-mentioned annular groove, is provided with O-ring seal.
As it is shown in figure 1, guide rotation-preventing mechanism to include cylinder cover 17, sensor connection dish 19, the axis of guide 22, its annexation is: be correspondingly arranged on a pair pilot hole matched with the axis of guide 22 in the upper end of the lower end of oil cylinder seat 17 and sensor connection dish 19；Match with above-mentioned a pair pilot hole respectively in the two ends of this axis of guide 22.
Guide rotation-preventing mechanism and can play the effect of vertically-guided and anti-rotation, make the sensor 20 on sensor connection dish 19 and pressure head 21 can only elevating movement, but can not rotate.
(3) work process of the present invention is as follows: with reference to Fig. 1, Fig. 2.
The hydraulic mechanism that the present invention is arranged between valve piston 5-2 and big piston 15 plays leverage, can will add the power that unloading mechanism produces, and effectively amplifies through valve piston 5-2, hydraulic oil and big piston 15, and is accurately transfer on pressure head.
The operation principle of hydraulic mechanism is: hydraulic oil is from valve piston working cavities, the oilhole being provided with by elbow, enter large tank intracoelomic cavity, big piston cavity, thus realize the amplification of power, transmission, and then realize being converted to the elevating movement of big piston, pressure head by motion before and after ball-screw, valve piston.Operating inner diameter due to big piston is more than the operating inner diameter of valve piston, it is thus possible to realize power augmentation function, though input force value is little but output force value becomes big, and then reaches the purpose of lowering energy-saving.
In an angle between centrage and the centrage of big piston 15 of valve piston 5-2, this angle is 0 °～90 °.Specifically, the centrage of the centrage of valve piston 5-2 and big piston 15 can be in 90 ° of angles, and as shown in this embodiment, valve piston 5-2 is horizontally disposed with, and big piston 15 is vertically arranged；The centrage of valve piston 5-2 can also be located along the same line in 0 ° of angle, the i.e. centrage of the two with the centrage of big piston 15；The centrage of the centrage of valve piston 5-2 and big piston 15 can also arbitrarily angled between 0 °～90 °.
The work process of the present invention is as follows:
During loading, motor 1 rotates forward, and drives small pulley 1-1 to rotate, and passes to big belt wheel 3 by belt 2, and big belt wheel 3 drives ball-screw 5, screw 6 to rotate, and makes ball-screw 5 move forward；Meanwhile, the bearing II 24 on screw mandrel 25 is movable in guiding the gathering sill 23-1 being provided with on spline seat 23；Valve piston 5-2 on ball-screw 5 promotes hydraulic oil to promote big piston 15 to move down by oilhole 13-1；Thus band dynamic sensor 20, pressure head 21 carry out accurate reinforcing, form the closed loop control of a power, complete loading process.Protect lotus certain time.
During off-load, motor 1 inverts, and drives ball-screw 5 to be moved rearwards by；Producing negative pressure between valve piston 5-2 and big piston 15, band dynamic sensor 20, pressure head 21 move up；Meanwhile, parking position accuracy under the assosting effect of compression spring 18, complete unloading process.
Claims (10)
1. bistable state direct-drive type durometer main shaft adds off-load unit, including adding unloading mechanism, mainshaft mechanism, its
Feature is,
A, add unloading mechanism include step drive mechanism, screw (6), ball-screw (5), valve piston (5-2),
Adapter sleeve (11), protheca (12), elbow (13), wherein:
One end of ball-screw (5) is provided with valve piston (5-2), and the two is structure as a whole；This ball wire
Thick stick (5) coordinates with screw (6), and this screw (6) is arranged on bearing holder (housing, cover) (8) by pair of bearings I (7)
Inner chamber in；
Adapter sleeve (11) is arranged between bearing holder (housing, cover) (8) and protheca (12)；The one of this adapter sleeve (11)
Holding be connected fixing with bearing holder (housing, cover) (8), the annular protrusion being provided with on adapter sleeve (11) is solid with elbow (13)
Fixed connection, the other end of this adapter sleeve (11) and protheca (12) all stretch in the inner chamber of elbow (13)；
B, mainshaft mechanism include large tank body (16), big piston (15), big piston rod (15-1), compression
Spring (18), cylinder cover (17), sensor connection dish (19), sensor (20), pressure head bar, pressure
Head (21), wherein:
Large tank body (16) is packed in below elbow (13)；Fix in the bottom of large tank body (16)
There is cylinder cover (17)；Big piston (15) is installed in large tank intracoelomic cavity, on big piston (15)
It is provided with and the inner chamber of large tank body (16) inner space；Big piston rod is arranged below at big piston (15)
(15-1), the cylindrical at big piston rod (15-1) is arranged with compression spring (18)；
The lower end of big piston rod (15-1) is fixed with sensor connection dish (19), at sensor connection dish (19)
On be fixed with sensor (20), sensor (20) is provided with pressure head (21) by pressure head bar；
The oilhole (13-1) that the inner chamber of c, protheca (12) and elbow (13) is provided with by elbow be positioned at
Large tank body and the inner chamber of big piston below elbow communicate；Protheca (12) and the inner chamber of elbow (13),
The inner chamber of oilhole (13-1) and large tank body (16) and big piston (15) is provided with hydraulic oil.
2. bistable state direct-drive type durometer main shaft as claimed in claim 1 adds off-load unit, it is characterized in that,
Described step drive mechanism includes motor (1), small pulley (1-1), belt (2), big belt wheel (3)；
Its annexation is: be provided with small pulley (1-1), this small pulley (1-1) on the output shaft of motor (1)
It is in transmission connection with big belt wheel (3) formation being arranged on screw (6) by belt (2)；This motor
(1) being arranged on motor cabinet (4), this motor cabinet (4) is packed in the bottom of bearing holder (housing, cover) (8).
3. bistable state direct-drive type durometer main shaft as claimed in claim 2 adds off-load unit, it is characterized in that,
The inner chamber of described adapter sleeve (11) communicates with the inner chamber of protheca (12) and elbow (13)；Described bearing holder (housing, cover)
(8), the lumen centers line of screw (6), adapter sleeve (11), protheca (12) and elbow (13) is respectively positioned on
On same straight line.
4. the bistable state direct-drive type durometer main shaft as described in claim 1 or 2 or 3 adds off-load unit, its
Feature is, described in add in unloading mechanism and also to include guiding rotation preventive mechanism, this guiding rotation preventive mechanism includes only guiding
Swivel base (23), screw mandrel (25), bearing II (24), nut (26), packing ring (28), screw (27),
Spline circle (29)；Wherein: be provided with horizontal guide slot (23-1) guiding on spline seat (23)；At screw mandrel
(25) one end is provided with bearing II (24), and this bearing II (24) is arranged on above-mentioned gathering sill (23-1)
In；The other end of this screw mandrel (25) is provided with external screw thread, the screwed hole phase being provided with spline circle (29)
Coordinate, and locked by nut (26)；The other end of ball-screw (5) is square Step Shaft, with spline circle
(29) square through hole being provided with matches, and by screw (27) by spline circle (29), packing ring (28)
It is pressed abd fixed on the other end of ball-screw (5)；When ball-screw (5) is movable, bearing II (24)
Can be simultaneously movable in above-mentioned horizontal guide slot (23-1).
5. bistable state direct-drive type durometer main shaft as claimed in claim 4 adds off-load unit, it is characterized in that,
Described adding, also includes in unloading mechanism that oil-bearing structure, this oil-bearing structure include fuel tank (14), oil nozzle (14-1),
Wherein: fuel tank (14) is arranged on the top of elbow (13), this fuel tank (14) is by the oil which is provided with
Space between mouth (14-1) and protheca (12) and adapter sleeve (11) end and protheca (12) and be connected
Inner chamber on set (11) communicates.
6. bistable state direct-drive type durometer main shaft as claimed in claim 5 adds off-load unit, it is characterized in that,
The annular groove face that the upper surface of described compression spring (18) is provided with big piston (15) contacts, its
The annular table terrace that lower surface is provided with cylinder cover (17) contacts.
7. bistable state direct-drive type durometer main shaft as claimed in claim 6 adds off-load unit, it is characterized in that,
Described big piston (15), big piston rod (15-1), cylinder cover (17), sensor connection dish (19), biography
The central axis of sensor (20), pressure head bar and pressure head (21) is respectively positioned on same straight line.
8. bistable state direct-drive type durometer main shaft as claimed in claim 7 adds off-load unit, it is characterized in that,
The working front edge of described valve piston (5-2) is provided with multiple O-ring seal I (9), its position outer one
Sealing ring end band is tapered；The other end at valve piston (5-2) is provided with multiple O-ring seal II (10).
9. bistable state direct-drive type durometer main shaft as claimed in claim 8 adds off-load unit, it is characterized in that,
Also including in described mainshaft mechanism guiding rotation-preventing mechanism, this guiding rotation-preventing mechanism includes cylinder cover (17), passes
Sensor connection dish (19), the axis of guide (22), its annexation is: in the lower end of cylinder cover (17) with
And the upper end of sensor connection dish (19) is correspondingly arranged on a pair pilot hole；The two ends of this axis of guide (22)
Match with above-mentioned a pair pilot hole respectively.
10. bistable state direct-drive type durometer main shaft as claimed in claim 9 adds off-load unit, it is characterized in that,
In an angle between centrage and the centrage of big piston (15) of described valve piston (5-2), this angle is
0 °～90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617454.3A CN104316397B (en) | 2014-11-06 | 2014-11-06 | Bistable state direct-drive type durometer main shaft adds off-load unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617454.3A CN104316397B (en) | 2014-11-06 | 2014-11-06 | Bistable state direct-drive type durometer main shaft adds off-load unit |
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| Publication Number | Publication Date |
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| CN104316397A CN104316397A (en) | 2015-01-28 |
| CN104316397B true CN104316397B (en) | 2016-08-24 |
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| CN201410617454.3A Active CN104316397B (en) | 2014-11-06 | 2014-11-06 | Bistable state direct-drive type durometer main shaft adds off-load unit |
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| Country | Link |
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| CN (1) | CN104316397B (en) |
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| CN104316397A (en) | 2015-01-28 |
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