CN103274260A - Racker and reciprocating screw thereof - Google Patents
Racker and reciprocating screw thereof Download PDFInfo
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- CN103274260A CN103274260A CN2013102131760A CN201310213176A CN103274260A CN 103274260 A CN103274260 A CN 103274260A CN 2013102131760 A CN2013102131760 A CN 2013102131760A CN 201310213176 A CN201310213176 A CN 201310213176A CN 103274260 A CN103274260 A CN 103274260A
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Abstract
The invention discloses a racker and a reciprocating screw thereof. The racker comprises a frame, a reciprocating screw and a guide sliding block. The reciprocating screw is supported by the frame, and drives the guide sliding block to perform linear reciprocate motions along the frame. The reciprocating screw comprises a spindle, a plurality of screw sleeves and two end shafts. The screw sleeves are sleeved on the spindle, and two ends of the spindle are inserted into internal holes of the two end shafts. The outer surfaces of the screw sleeves are provided with a left thread and a right thread, and the outer surfaces of the end shafts are provided with a reversing part formed by combing the left thread and the right thread. The reversing part formed by combining the left thread and the right thread on the outer surfaces of the end shafts and the left thread and the right thread on the outer surfaces of the screw sleeves form thread grooves on the outer surface of the screw. A segment manner is adopted by the reciprocating screw, the length of the entire screw can be changed as required, and the length of the racker can be changed through changes of the lengths of the screw and the guide rail; and adaptability of the racker in different equipment is increased, and production cost of products is reduced.
Description
[technical field]
The present invention relates to the wind2 that flexible pipe or cable make, relate in particular to the reciprocal screw mandrel of a kind of racker and racker.
[background technology]
Need to be wound up into after the flexible pipe of mechanical equipment such as spraying apparatus, sprinkler or cable are finished using on the reel, in order to be unlikely to volume disorderly when reeling, racker is equipped with in the entrance of reel.Flexible pipe or cable are led to flexible pipe or cable by the guide runner of racker in the process of reeling, and the guide runner of racker moves reciprocatingly at the reciprocal driving lower edge guide rail of screw mandrel, make flexible pipe or cable closely, fitly be aligned on the reel.
The reciprocal screw mandrel of existing racker, the usefulness machine add mode moulding that has has plenty of the unitary mould moulding, can not change length according to the needs of racker, and commonality is poor, and Applicable scope is little, the cost height.
Tradition racker guide runner comprises housing and a pair roller, and roller comprises wheel body and wheel shaft, and wheel shaft stretches out from the two ends of wheel body, and the wheel surface comprises annular groove.Housing is framed structure, and the wheel body of roller is arranged in the endoporus that case frame surrounds, and the wheel shaft of roller inserts respectively in two axis holes of framework border, and the groove of two roller wheel bodys forms the via hole of flexible pipe or cable relatively.The tradition racker is to produce design at flexible pipe or the cable of specific standard, and two axis holes of racker frame have been placed restrictions on the spacing between two roller wheel bodys, is not easy to adjust, and commonality is poor, is difficult to adapt to the flexible pipe of different size or the needs of cable.
The guide runner of racker moves reciprocatingly at the driving lower edge guide rail of reciprocal screw mandrel, the guide rail of traditional direction slide block adopts mode moulding such as injection moulding or die casting with the moulding of machine add mode or at a certain specific dimensions, is not easy to adjust length, and commonality is poor, Applicable scope is little, the cost height; And guide rail has only guide function, do not have safeguard function.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of usefulness one mold just can be combined into the different length product, and commonality and applicability are good, the reciprocal screw mandrel of the racker that cost is low.
Another technical matters that will solve of the present invention provides the racker that a kind of type specification is convenient to change
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, the reciprocal screw mandrel of a kind of racker, back and forth the outside face of screw mandrel comprises thread groove, thread groove comprises left-hand thread, right-hand thread and commutation portion, back and forth screw mandrel comprises mandrel, a plurality of screw collar and two end axles, and screw collar is enclosed within on the mandrel, and insert respectively in the endoporus of two end axles at the two ends of mandrel; The cross-sectional plane of mandrel is on-circular cross-section, and endoporus and the mandrel of the endoporus of screw collar and end axle are adaptive; The outside face of screw collar comprises the described left-hand thread of part and the described right-hand thread of part, and the outside face of end axle comprises that described left-hand thread, right-hand thread converge the described commutation portion of formation; Two left and right screw threads of end axle outside face converge the thread groove of outside face of the synthetic screw mandrel of left and right thread set of the outside face of the commutation portion of formation and screw collar.
Above-described reciprocal screw mandrel, the helical pitch of left-hand thread is identical with the helical pitch of right-hand thread, and the length of screw collar equals the helical pitch of an integer left-hand thread and right-hand thread; Mandrel is shape, and cross-sectional plane is regular hexagon; Screw collar and end axle are moulding; The axle head of end axle and mandrel respectively comprises pin-and-hole, and locating dowel pin passes pin-and-hole, the end axle is fixed on the axle head of mandrel; Two end axles comprise a drive end axle and a driven end axle, and the outer end of drive end axle comprises drive shaft hole.
A kind of technical scheme of racker is, comprise frame, reciprocal screw mandrel and guide runner, described frame comprises two guide rails up and down, back and forth screw mandrel is by rack support, drive guide runner when back and forth screw mandrel rotates and do straight reciprocating motion along described guide rail, described reciprocal screw mandrel is the above-mentioned reciprocal screw mandrel of racker.
Above-described racker, guide runner comprise housing, drive pin and a pair roller, and roller comprises wheel body and wheel shaft, and wheel shaft stretches out from the two ends of wheel body, and the wheel surface comprises annular groove; Housing is framed structure, and the wheel body of roller is arranged in the endoporus that case frame surrounds, and the wheel shaft of roller inserts respectively in the axis hole of two side frames of framework; The upper side frame of case frame comprises screw hole and the pin shaft hole that intersects vertically with screw hole, and screw hole is parallel with the axis hole of side frame; The front end of drive pin comprises that the end is the homalocephalus of cambered surface, and the rear portion of drive pin comprises bearing pin, and the bearing pin of drive pin inserts pin shaft hole rotationally; The homalocephalus of drive pin is arranged in screw hole, inserts the thread groove of screw mandrel.
Above-described racker is characterized in that, the axis hole of each side frame of housing comprises first axis hole, second axis hole and Triaxial hole, and second axis hole is between first axis hole and Triaxial hole; The wheel shaft of first roller is installed in first axis hole, and the wheel shaft of second roller selectively is installed in second axis hole or the Triaxial hole.
Above-described racker, housing separately forms left half shell and right half shell two parts by the split surface of centre, and the axis of described pin shaft hole is positioned on the split surface of left half shell and right half shell, and the axis of screw hole is vertical with described split surface; Comprise tapped bore on the guiding convex of a left side half shell, comprise screw hole on the guiding convex of right half shell, about half shell attaching screw pass the screw hole of right half shell, screw in the tapped bore of left half shell, a left side half shell and right half shell are linked together.
Above-described racker, the upper side frame of case frame respectively comprises a guiding convex parallel with described axis hole with lower frame, the guiding convex slides along upper and lower guide rail.
Above-described racker, frame comprise left and right two blocks of side plates and upper and lower two backplates, and the supporting base of reciprocal screw mandrel is housed on the side plate; Backplate comprises protection department and guide part, and protection department is the U font, and guide part comprises two guide plates, and guide plate is arranged in the groove of protection department U font, and the inner of guide plate is connected with the base plate of U font protection department; Opening between two guide plates and the opening of groove are in the same way; Neutral gear between two guide plates constitutes the chute of described guide rail.
Above-described racker, backplate comprise two brace panels and 4 lug, nibs, and an end of brace panel is connected with the outer end of guide plate, and the other end is connected with the wing plate of U font protection department; Article 4, lug, nib is arranged in the junction of guide plate and protection department base plate and the junction of brace panel and protection department wing plate; The two ends of backplate comprise that respectively 4 are installed tapped bore, tapped bore is installed is positioned on the described lug, nib; The upper and lower of side plate respectively comprises 4 screw holes, and fix screw passes the screw hole of side plate, screws in the tapped bore of backplate, and backplate and side plate are fixed together.
Above-described racker comprises axle drive shaft, and back and forth two of screw mandrel end axles comprise a drive end axle and a driven end axle, and the outer end of drive end axle comprises drive shaft hole, and the outer end of driven end axle comprises support holes; Described supporting base comprises left supporting base and right supporting base, and left supporting base comprises the hole of holding that bead and axle drive shaft are installed, and the installation bead of left supporting base is fixed on the left side board; The middle part of axle drive shaft is supported by the hole of holding of left supporting base, and the drive shaft hole of reciprocal screw mandrel drive end axle is inserted in the inner of axle drive shaft; Right supporting base comprises bolster and installation bead, and the installation bead of right supporting base is fixed on the right side board, and bolster inserts the support holes of reciprocal screw mandrel driven end axle.
Reciprocal screw mandrel of the present invention is taked segmented mode, and whole screw mandrel length can change according to demand, and racker can be realized the change of racker length by the variation of screw mandrel and rail length; Strengthen the comformability in the racker distinct device, reduced the cost of manufacture of product.
[description of drawings]
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the front view of the embodiment of the invention 1 racker.
Fig. 2 is the birds-eye view of the embodiment of the invention 1 racker.
Fig. 3 is the right elevation of the embodiment of the invention 1 racker.
Fig. 4 is the left view of the embodiment of the invention 1 racker.
Fig. 5 is that A among Fig. 1 is to cutaway view.
Fig. 6 is that B among Fig. 3 is to cutaway view.
Fig. 7 is the front view of the embodiment of the invention 1 reciprocal screw mandrel.
Fig. 8 is the birds-eye view of the embodiment of the invention 1 reciprocal screw mandrel.
Fig. 9 is that C among Fig. 8 is to cutaway view.
Figure 10 is the left view of the embodiment of the invention 1 reciprocal screw mandrel.
Figure 11 is the right elevation of the embodiment of the invention 1 reciprocal screw mandrel.
Figure 12 is the front view of the embodiment of the invention 1 screw collar.
Figure 13 is the right elevation of the embodiment of the invention 1 screw collar.
Figure 14 is the front view of the embodiment of the invention 1 drive end axle.
Figure 15 is the birds-eye view of the embodiment of the invention 1 drive end axle.
Figure 16 is that the D of Figure 14 is to cutaway view.
Figure 17 is that the E of Figure 15 is to cutaway view.
Figure 18 is the lateral plan of the embodiment of the invention 1 backplate.
Figure 19 is the front view of the embodiment of the invention 1 guide runner.
Figure 20 is the left view of the embodiment of the invention 1 guide runner.
Figure 21 is that F among Figure 20 is to cutaway view.
Figure 22 is the embodiment of the invention 1 guide runner block diagram.
Figure 23 is the block diagram of right half shell of the embodiment of the invention 1 guide runner.
Figure 24 is the block diagram of the embodiment of the invention 1 a guide runner left side half shell.
Figure 25 is the front view of the embodiment of the invention 2 guide runners.
Figure 26 is the cutaway view of the embodiment of the invention 2 guide runners.
[specific embodiment]
The structure of the embodiment of the invention 1 racker such as Fig. 1 are to shown in Figure 24.
To shown in Figure 6, racker comprises frame 100, reciprocal screw mandrel 200 and guide runner 300 as Fig. 1.Frame 100 comprises lower guideway, and back and forth screw mandrel 200 drives guide runner 300 when back and forth screw mandrel 200 rotates and does straight reciprocating motion along the guide rail on the frame 100 by frame 100 supportings.
The structure of backplate 10 comprises guide part and protection department as shown in figure 18.Protection department is the case of U font, and the case of U font is made up of base plate 1001 and wing plate 1002.Guide part comprises two guide plates 1003 and two brace panels 1004, and guide plate 1003 is arranged in the groove of case, and the inner of guide plate 1003 is connected with the base plate 1001 of U font case.Two guide plates 1003 are arranged in parallel, the opening of opening between the two and case groove in the same way, the space between two guide plates 1003 constitutes the chute of racker guide rail, inserts for the guiding convex 108 of guide runner 300, and slidably reciprocates along chute.
One end of brace panel 1004 is connected with the outer end of guide plate 1003, and the other end is connected with the wing plate 1002 of U font case.
The upper and lower of left side board 11 and right side board 12 respectively comprises 4 screw holes, and fix screw 13 passes the screw hole of left side board 11 and right side board 12, screws in the tapped bore 1106 of backplate 10, left side board 11 and right side board 12 is fixed on the two ends of upper and lower backplate 10.
The top of left side board 11 and right side board 12 is separately installed with the supporting base 14 and 15 of reciprocal screw mandrel 200, and back and forth screw mandrel 200 is by supporting base 14 and 15 supportings.Back and forth the two ends of screw mandrel 200 comprise a drive end axle 8A and a driven end axle 8B, and there is a drive shaft hole 802 outer end of drive end axle 8A, and there is a support holes 803 outer end of driven end axle.
Left side supporting base 14 comprises the hole of holding that bead 1401 and screw mandrel axle drive shaft 16 are installed, and the installation bead 1401 of left supporting base 14 is fixed on the left side board 11; The middle part of axle drive shaft 16 is supported by the hole of holding of left supporting base 14, in the drive shaft hole 802 of the inner insertion screw mandrel drive end axle 8A of axle drive shaft 16 and the axis hole 601 of screw mandrel mandrel, drives reciprocal screw mandrel 200 rotations by axle drive shaft 16.Right supporting base 15 comprises bolster 1501 and bead 1502 is installed that the installation bead 1502 of right supporting base is fixed on the right side board 12, in the support holes 803 of the bolster 1501 insertion screw mandrel driven end axle 8B of right supporting base 15 and the axis hole 601 of screw mandrel mandrel.
Back and forth the structure of screw mandrel 200 such as Fig. 7 are combined by mandrel 6, a plurality of screw collar 7 and two end axles 8 to shown in Figure 17, and screw collar 7 and end axle 8 are moulding, and mandrel 6 is the shape of hollow.
The outside face of screw mandrel 200 comprises that toward two-start screw past two-start screw comprises left-hand thread and right-hand thread, and the end of the groove of left-hand thread and the groove of right-hand thread is converged and seamlessly transitted, and forms the commutation groove 801 of left and right screw thread.
Screw collar 7 is enclosed within the outside face of mandrel 6, and insert respectively in the endoporus of two end axles 8 at the two ends of mandrel 6.The cross-sectional plane of mandrel 6 is regular hexagon, and the endoporus 804 of the endoporus 701 of screw collar 7 and end axle 8 is all adaptive with mandrel 6, is orthohexagonal endoporus.
The outside face of screw collar 7 comprises one section left-hand thread and one section right-hand thread, and the outside face of end axle 8 has left-hand thread and the end of right-hand thread, i.e. the commutation groove 801 of left and right screw thread that converges.
The past two-start screw of synthetic screw mandrel 200 outside faces of left and right thread set of the left and right screw thread of two end axle 8 outside faces and the outside face of screw collar 7.
The helical pitch of left-hand thread is identical with the helical pitch of right-hand thread, and the length of screw collar 7 equals the helical pitch of an integer left-hand thread and right-hand thread, and the length of present embodiment screw collar 7 equals left-hand thread groove and right-hand thread helical pitch 4 times.
The axle head of end axle 8 and mandrel 6 respectively comprises pin-and-hole, and locating dowel pin 9 passes pin-and-hole, end axle 8 is fixed on the axle head of mandrel 6.
Two are held one in the axle 8 is drive end axle 8A, and another is driven end axle 8B, and there is a drive shaft hole 802 outer end of drive end axle 8A, and the axis hole 803 of driven end axle 8 outer ends is circular support holes, can rotate at the bolster 1501 of right supporting base 15.
The mandrel 6 of the embodiment of the invention 1 is the shape of hollow, and cross-sectional plane is regular hexagon, and is easy to manufacture, and centering better; The cross-sectional plane of mandrel 6 is not limited to regular hexagon, can also adopt on-circular cross-sections such as star, spline shape, circular band keyway or other equilateral polygon.
The structure of the embodiment of the invention 1 guide runner 300 such as Figure 19 comprise housing 1, a pair roller 2 and drive pin 3 to shown in Figure 24.
Housing 1 is framed structure, the wheel body 201 of roller 2 is arranged in the endoporus 101 that case frame surrounds, the wheel shaft 203 of roller 2 inserts respectively in the axis hole of two side frames 102 of framework, and each side frame 102 has three axis holes, comprises upper shaft hole 103, central axis hole 104 and lower shaft hole 105.Central axis hole 104 is between upper shaft hole 103 and lower shaft hole 105.
The wheel shaft 203 of upper roller 2A is installed in the upper shaft hole 103, and the wheel shaft 203 of bottom roller 2B selectively is installed in central axis hole 104 or the lower shaft hole 105.Present embodiment adopts the less roller 2 of diameter, and the wheel shaft 203 of bottom roller 2B is installed in the central axis hole 104, to adapt to thinner flexible pipe or cable.
The upper side frame 106 of case frame respectively has a guiding convex 108 parallel with the axis hole axis with lower frame 107, and guiding convex 108 is inserted in respectively in the guide rail chute of upper and lower backplate 10 guide plates 1003 formation, and guide runner 300 is led.
The pin shaft hole 109 that screw hole 120 is arranged in the upper side frame 106 of case frame and intersect vertically with screw hole 120, pin shaft hole 109 are arranged in the convex 106a of upper side frame 106.Screw hole 120 is parallel with the axis hole in the side frame 102, and screw mandrel 200 passes screw hole 120.It is the homalocephalus 301 of cambered surface that the front end of drive pin 3 has the end, there is bearing pin 302 at the rear portion of drive pin 3, the bearing pin 302 of drive pin 3 inserts pin shaft hole 109 rotationally, the homalocephalus 301 of drive pin 3 is arranged in screw hole 120, the homalocephalus 301 of drive pin 3 inserts in the thread groove of reciprocal screw mandrel 200, when reciprocal screw mandrel 200, back and forth the thread groove of screw mandrel 200 is reciprocating along the guide rail of backplate 10 by drive pin 3 drive guide runners 300.When guide runner 300 drive pins 3 run to the end of screw mandrel 200, rotate during the commutation groove 801 of drive pin 3 by left and right screw thread, realize the switching of left and right screw thread and the commutation of guide runner 300.
In order to realize the axial location of drive pin 3, one delineation position annular groove 302a is arranged on the bearing pin 302 of drive pin 3, the location convex 109a of one circle annular is arranged in housing 1 pin shaft hole 109, and the location convex 109a of annular embeds the positioning ring groove 302a on the drive pin bearing pin, can prevent drive pin 3 axial motions.
Housing 1 is combined by a left side half shell 1A and right half shell 1B two parts, and left half shell 1A and right half shell 1B can be by middle split surface M-M separately.The axis of pin shaft hole 109 is positioned on the split surface of left half shell 1A and right half shell 1B, is convenient to drive pin 3 and packs into.The axis of screw hole 120 is vertical with split surface M-M.On the guiding convex of a left side half shell 1A tapped bore 110 is arranged, on the guiding convex of right half shell 1B screw hole 111 is arranged, about half shell attaching screw 4 pass the screw hole 111 of right half shell 1B, screw in the tapped bore 110 of left half shell 1A, a left side half shell 1A and right half shell 1B are linked together.About half shell 1A and 1B except being connected by attaching screw 4, also connect by 4 screws 5, to increase Joint strenght.
For the ease of accurately locating and improving Joint strenght, on the guiding convex of left half shell 1A locator protrusions 112 is arranged, on the guiding convex of right half shell 1B knock hole 113 is arranged, the locator protrusions 112 of left half shell 1A inserts the knock hole 113 of right half shell 1B.
As Figure 25 and shown in Figure 26, the structure of the embodiment of the invention 2 rackers and the difference of embodiment 1 only are that guide runner 300 has adopted that wheel body 201 diameters are big, the wideer darker roller 2 of semi-circular recesses 203; The wheel shaft 203 of bottom roller 2B is installed in the lower shaft hole 105, to adapt to thicker flexible pipe or cable.Guide runner 300 is by the replacing roller that varies in size, and selects the axis hole of disalignment distance, can adapt to flexible pipe or the cable of multiple diameter, and commonality strengthens, and alternative cost is low.
The reciprocal screw mandrel of the above embodiment of the present invention is taked segmented mode, and whole screw mandrel length can change according to demand, realizes the changeability of screw mandrel length, and Applicable scope increases, mould molding, and cost is low; Adopt tensioning member to do the attaching parts of segmentation screw mandrel, financial cost is low, and the location is accurately reliable.
The racker of the above embodiment of the present invention can be realized the variation of racker length easily by the variation of screw mandrel and rail length; By the variation of pulley knock hole position and pulley chute, realize the variation of comb caliber.Strengthened the replaceability of racker in different type of machines, the comformability in distinct device has reduced the cost of manufacture of product.
Claims (10)
1. the reciprocal screw mandrel of a racker, back and forth the outside face of screw mandrel comprises thread groove, thread groove comprises left-hand thread, right-hand thread and commutation portion, it is characterized in that, comprise mandrel, a plurality of screw collar and two end axles, screw collar is enclosed within on the mandrel, and insert respectively in the endoporus of two end axles at the two ends of mandrel; The cross-sectional plane of mandrel is on-circular cross-section, and endoporus and the mandrel of the endoporus of screw collar and end axle are adaptive; The outside face of screw collar comprises the described left-hand thread of part and the described right-hand thread of part, and the outside face of end axle comprises that described left-hand thread, right-hand thread converge the described commutation portion of formation; Two left and right screw threads of end axle outside face converge the thread groove of outside face of the synthetic screw mandrel of left and right thread set of the outside face of the commutation portion of formation and screw collar.
2. reciprocal screw mandrel according to claim 1 is characterized in that, the helical pitch of left-hand thread is identical with the helical pitch of right-hand thread, and the length of screw collar equals the helical pitch of an integer left-hand thread and right-hand thread; Mandrel is shape, and cross-sectional plane is regular hexagon; Screw collar and end axle are moulding; The axle head of end axle and mandrel respectively comprises pin-and-hole, and locating dowel pin passes pin-and-hole, the end axle is fixed on the axle head of mandrel; Two end axles comprise a drive end axle and a driven end axle, and the outer end of drive end axle comprises drive shaft hole.
3. racker, comprise frame, reciprocal screw mandrel and guide runner, described frame comprises two guide rails up and down, back and forth screw mandrel is by rack support, drive guide runner when back and forth screw mandrel rotates and do straight reciprocating motion along described guide rail, it is characterized in that described reciprocal screw mandrel is the reciprocal screw mandrel of the described racker of claim 1.
4. racker according to claim 3 is characterized in that, guide runner comprises housing, drive pin and a pair roller, and roller comprises wheel body and wheel shaft, and wheel shaft stretches out from the two ends of wheel body, and the wheel surface comprises annular groove; Housing is framed structure, and the wheel body of roller is arranged in the endoporus that case frame surrounds, and the wheel shaft of roller inserts respectively in the axis hole of two side frames of framework; The upper side frame of case frame comprises screw hole and the pin shaft hole that intersects vertically with screw hole, and screw hole is parallel with the axis hole of side frame; The front end of drive pin comprises that the end is the homalocephalus of cambered surface, and the rear portion of drive pin comprises bearing pin, and the bearing pin of drive pin inserts pin shaft hole rotationally; The homalocephalus of drive pin is arranged in screw hole, inserts the thread groove of screw mandrel.
5. racker according to claim 4 is characterized in that, it is characterized in that, the axis hole of each side frame of housing comprises first axis hole, second axis hole and Triaxial hole, and second axis hole is between first axis hole and Triaxial hole; The wheel shaft of first roller is installed in first axis hole, and the wheel shaft of second roller selectively is installed in second axis hole or the Triaxial hole.
6. racker according to claim 4, it is characterized in that, housing separately forms left half shell and right half shell two parts by the split surface of centre, and the axis of described pin shaft hole is positioned on the split surface of left half shell and right half shell, and the axis of screw hole is vertical with described split surface; Comprise tapped bore on the guiding convex of a left side half shell, comprise screw hole on the guiding convex of right half shell, about half shell attaching screw pass the screw hole of right half shell, screw in the tapped bore of left half shell, a left side half shell and right half shell are linked together.
7. racker according to claim 4 is characterized in that, the upper side frame of case frame respectively comprises a guiding convex parallel with described axis hole with lower frame, and the guiding convex slides along upper and lower guide rail.
8. racker according to claim 3 is characterized in that, frame comprises left and right two blocks of side plates and upper and lower two backplates, and the supporting base of reciprocal screw mandrel is housed on the side plate; Backplate comprises protection department and guide part, and protection department is the U font, and guide part comprises two guide plates, and guide plate is arranged in the groove of protection department U font, and the inner of guide plate is connected with the base plate of U font protection department; Opening between two guide plates and the opening of groove are in the same way; Neutral gear between two guide plates constitutes the chute of described guide rail.
9. racker according to claim 8 is characterized in that, backplate comprises two brace panels and 4 lug, nibs, and an end of brace panel is connected with the outer end of guide plate, and the other end is connected with the wing plate of U font protection department; Article 4, lug, nib is arranged in the junction of guide plate and protection department base plate and the junction of brace panel and protection department wing plate; The two ends of backplate comprise that respectively 4 are installed tapped bore, tapped bore is installed is positioned on the described lug, nib; The upper and lower of side plate respectively comprises 4 screw holes, and fix screw passes the screw hole of side plate, screws in the tapped bore of backplate, and backplate and side plate are fixed together.
10. racker according to claim 8 is characterized in that, comprises axle drive shaft, and back and forth two of screw mandrel end axles comprise a drive end axle and a driven end axle, and the outer end of drive end axle comprises drive shaft hole, and the outer end of driven end axle comprises support holes; Described supporting base comprises left supporting base and right supporting base, and left supporting base comprises the hole of holding that bead and axle drive shaft are installed, and the installation bead of left supporting base is fixed on the left side board; The middle part of axle drive shaft is supported by the hole of holding of left supporting base, and the drive shaft hole of reciprocal screw mandrel drive end axle is inserted in the inner of axle drive shaft; Right supporting base comprises bolster and installation bead, and the installation bead of right supporting base is fixed on the right side board, and bolster inserts the support holes of reciprocal screw mandrel driven end axle.
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| CN201310213176.0A CN103274260B (en) | 2013-05-31 | 2013-05-31 | A kind of racker and the reciprocating screw rod of racker |
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| CN201310213176.0A CN103274260B (en) | 2013-05-31 | 2013-05-31 | A kind of racker and the reciprocating screw rod of racker |
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| CN103274260B CN103274260B (en) | 2016-08-10 |
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