CN102401101A - Sliding block with twisting capability - Google Patents
Sliding block with twisting capability Download PDFInfo
- Publication number
- CN102401101A CN102401101A CN2010102852703A CN201010285270A CN102401101A CN 102401101 A CN102401101 A CN 102401101A CN 2010102852703 A CN2010102852703 A CN 2010102852703A CN 201010285270 A CN201010285270 A CN 201010285270A CN 102401101 A CN102401101 A CN 102401101A
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- ball
- pipe
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- closed
- sleeve rack
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Abstract
The invention discloses a sliding block, which is a linear sliding bearing, particularly a sliding block with a twisting capability. The sliding block consists of a sleeve frame, a roll ball, a closed roll ball tube and other auxiliary matched members, wherein the roll ball rolls and circulates in the closed roll ball tube; the closed roll ball tube is arranged in the sleeve frame and is intersected with the inner wall of the sleeve; an opening is arranged on the lateral surface of the closed roll ball tube; the roll ball is protruded at the opening of the closed roll ball tube in a semi-exposed state; and the sliding block can be used for transmitting a twisting force to the outside and can actively slide along the axial direction.
Description
The present invention relates to a kind of sliding bearing, is a kind of linear slide block, is specially the slide block with torsion capacity.
Background technique:
At present, common sliding bearing; In sliding linearly series, still lack and can slide along axle, can the axle transmission of power be given the bearing or the slide block of driven member again.
Summary of the invention:
The sliding bearing that the present invention relates to can be filled up the function vacancy of above-mentioned sliding bearing, can when sliding along axle, axle power passed to the driven member that is attached thereto.
This sliding bearing (or claiming slide block) becomes (Fig. 1) by sleeve rack, ball, closed ball pipe and other auxiliary supporting component sets.The ball circulation of in closed ball pipe, rolling, closed ball pipe is arranged in the sleeve rack; Closed ball pipe and sleeve lining intersect, and in the side opening are set; It is outstanding that ball is half-naked dewiness attitude at the opening of closed ball pipe.
The pairing rotatingshaft of this sliding bearing is circular shaft or its distortion that is provided with ball grooves; Its cross section roughly is the U type, its sidewall, and a side and ball coincide, and the structure of encorbelmenting on opposite side and the sleeve rack coincide.
The sleeve rack of sliding bearing is a rigidity cylindrical member, is sleeved on the rotatingshaft and can slides vertically, rotates and axle power passed to the driven member that is attached thereto during work with axle.
For sleeve can efficiently be slided; Can rotate synchronously with rotatingshaft again, and simultaneously driven member produced powerful torsion, adopt the method make ball cell wall of set ball grooves on the circular shaft; Utilize cell wall to make sleeve rack produce torsion, axle power is passed to driven member the extruding of ball.
The opening of closed ball pipe, a side setting of circle radius line in sleeve rack makes the ball that exposes out directly contact with cell wall.Axle power is passed to ball through cell wall, and ball is given closed ball pipe with transmission of power again, and closed ball pipe is given sleeve rack with transmission of power again.Directly do not link to each other between sleeve rack and the rotatingshaft.
The ball pipe is a firm shape pipe, is to connect with bend at two ends with two straight cylinders, forms close passage, and ball can circulate in pipe in regular turn; The ball pipe is arranged on the sleeve rack, and its loop feature is hidden inner at sleeve rack, and its open part semi-nudity is exposed at the sleeve rack inwall.Opening is arranged on a side radially, and is corresponding with the ball grooves of rotatingshaft; Opening size can guarantee that ball does not drop, and can make it again enough to expose, and purpose is to guarantee the area that effectively contacts with the ball grooves sidewall.
The conjuncted setting of ball Guan Keyu sleeve rack makes slide block structure simpler; If the ball pipe is set separately, then sleeve rack also will be provided with corresponding encorbelmenting, and it is provided support.
Ball is the circuit ball that in the ball pipe, rolls in regular turn, and the ball set of some is arranged, and is enough to fill up closed ball pipe; Ball at ball tube opening place after contacting with rotatingshaft and rolling, rolls into the circulation pipeline section of ball pipe; There is and have new ball to roll out simultaneously from circulation section; Take over the ball that rolls out forward in order, continue with rotatingshaft on the ball cell wall contact power transmission, move in circles.
The sliding bearing of Fig. 1 structure does not possess the ability of initiatively sliding along rotatingshaft, can only give the driven member that is attached thereto with the axle transmission of power, and ball is passive rolling under external force along the rolling of rotatingshaft cell wall; If do not establish external force, then ball does not roll, so sliding bearing does not endwisely slip with regard to not producing yet.Desire to make slide block can outwards spread out of torsion, active slip vertically just must make ball initiatively roll again; For this reason, screw reamer is set in that closed ball tube opening section is parallel with it, stirs ball, make it to relatively rotate axle and initiatively roll with reamer; The active of ball is rolled, and drives sleeve rack and slides vertically.
Screw reamer (Fig. 2) is set in parallel in the outside of closed ball tube opening section, or is arranged on the circulation section and with parallel, mangler shaft is support with the sleeve rack; External external impetus; Externally dynamic action rotation down drives reamer and pushes ball, and then drives the sliding bearing slip.
The power of mangler shaft can be provided with power source separately, and also the power-converting of rotatingshaft capable of using obtains.Pinion mate is set on mangler shaft, and with the gearwheel engagement that is installed on the frame and can slides synchronously with slide block, small gear gains impetus mangler shaft along the star-like rolling of gearwheel.
Rack-mounted gearwheel has the effect of regulating the reamer rotating speed.Under the situation that the rotatingshaft rotating speed is fixed, gearwheel is rotated on the edge forward or backwards, but the rotation speed change of the relative gearwheel of small gear, thus cause the mangler shaft change in rotational speed, reach the purpose of adjustment reamer rotating speed.Gearwheel is sleeved on outside the mangler shaft of rotatingshaft and sliding bearing, and its support is fixedly connected with sleeve rack synchronously and slides, and the power of its rotation is from the outside.
Under the situation that rotatingshaft slowly runs, circulation section, the open section of the closed ball pipe of sliding bearing can divide be arranged (Fig. 3,4), and open section still is located on the sleeve rack, and the relative sleeve rack of circulation section becomes peripheral hardware mechanism; Circulation section is fixedly installed on outside the sleeve rack, only endwisely slips synchronously with sleeve rack, and does not rotate vertically; A circulation section, corresponding some open sections.
Go up with, with rotatingshaft be driving link and slide block to be driven member discuss, if getting slide block is driving link, and rotatingshaft is a driven member in the enforcement, more than each structure still effective.
Description of drawings:
Fig. 1: this figure be slide block with rotatingshaft by the signal that turns clockwise.
Graph of a relation between bearing bracket stand, ball, closed ball pipe and the rotatingshaft of expression sliding bearing is the cross-sectional view in the sliding bearing intermediate portion.The expression sliding bearing is sleeved on the rotatingshaft; Ball contacts power transmission with ball grooves on the rotatingshaft on sidewall; Closed ball pipe is located on the sleeve rack, and has part to expose at the sleeve rack inwall, (is outwards radiated a side of direction by the axle center) in its side and is provided with opening.This figure closed ball pipe that only drawn can be provided with several as required.
Ball pipe and rotatingshaft laterally arrange, and divide open section and circulation section, establish the connection bend at the sleeve rack two ends, and two sections pipes are connected into closed ring.
1 represents sleeve rack; 2 represent ball; 3 represent the part of encorbelmenting of sleeve rack, and this structure is strip vertically, supports the open section of closed ball pipe continuously; 4 represent rotatingshaft, and the axis of rolling is provided with the ball grooves that coincide with ball pipe and ball; 5 represent the ball pipe of circulation section; 6 represent the ball pipe of open section; The ball that 2 ' representative contacts with the rotatingshaft cell wall.Fig. 2: expression has the structure situation of the slide block of active slip ability, and it is on the basis of Fig. 1, to have increased the driving reamer, and the rotation of reamer is stirred ball and produced directed the rolling, thereby drives slide block along rotating the axial orientation slippage.
This figure; Reamer laterally arranges with the closed ball pipe of open section in sleeve rack; Reamer and circulation section are laterally arranged, utilize the orientation of acquisition in the ball pipe of pushing each other between the ball to circulate, and then realize the initiatively purpose of slippage of driving sliding block.
Left figure is sliding bearing (slide block) middle part part section radially, is intended to explain the relation between ball pipe and ball and the reamer; Have the part cutter piece to expose the ball pipe and contact with ball, cutter piece is pushed ball and is done directed the rolling.
Right figure is along the slide block longitudinally cutting, gets the sectional drawing of its representative intermediate portion, and this is to utilize axle power to obtain the device of reamer power.Left-hand component is represented slide block, the internal-gear that the right representative is outer with being enclosed within rotatingshaft and mangler shaft; Internal-gear and slide block coaxial rotation.Internal-gear both can be provided with the sleeve rack relative fixed, also can relatively rotate with the sleeve rack setting; Except that can relatively rotating, other relations are fixing between the two.
7 representatives are located at the reamer hole on the sleeve rack; 8 represent mangler shaft; 8.1 representative cutter piece; 9 represent the mangler shaft gear; 10 represent internal-gear; 4.1 represent the gap between rotatingshaft and the slide block; → represent sense of rotation with ω.
Fig. 3: the open section of expression ball pipe separates the slide block structure of setting with circulation section, is on the basis of Fig. 1, to change and come; The construction measure of open section is motionless basically, just breaks off at the bend place, forms the ball gateway, and circulation section is separated, and does not rotate with sleeve rack; This structure is made the ball quantity in the ball pipe, needs to flow out the gap of 1-2 ball; When the gap will appear in the ball of the open section back of rolling forward, when gap during enough more than the yardstick of half ball, the ball in the circulation section falls, and gets into open section, and the bend mouth and the acting in conjunction of block bead ring of open section are got into open section with the ball that falls simultaneously; When the gap was less than the yardstick of half ball, the ball in the circulation section did not fall, or the backward down circulation section that squeezed back again; When the gap just is the yardstick of half ball, be arranged on the spring sheet and the ball collision at open section bend place, produce distortion then and drive ball and rotate, and then ball is compressed into open section, or the circulation section that rebounds.
When ball is got into open section, push the directed rolling of other balls again, can drive the slide block active slip thus.
The ball entrance and exit of open section is set as cylindric (coaxial with rotatingshaft) with the sleeve rack two ends, and the bend opening is provided with on it; The opening of ball entry end in rotational direction turns forward, and the opening of ball outlet end in rotational direction recedes, and makes things convenient for rolling into and rolling out of ball.
The opening of entry end is the three-dimensional wealthy mouth of camber line shape of a complicated shape; Open bottom (cross section) is arc surface, matches with the rolling track of ball; Opening shows as a big wealthy mouth on cylinder, wealthy mouthful initial point end is different with the destination terminal inclination angle, and ball gets into open section by circulation section needs certain hour length; Cylinder can turn over several angle at this moment; Therefore, from the superficial to the deep progressively get into from the front portion of opening (by sense of rotation) beginning, until the inwall of sleeve rack termination cylinder; And also should there be certain inclination at the rear portion, and what be beneficial to ball rolls into and make full use of the original inertia of ball; In addition, need choose certain-length because of spring sheet and can bring into play effect,, comprehensively confirm the beginning position of opening front and the final position of back so must figure the length that spring sheet is encorbelmented in when opening is set.
The spring sheet of ingress is along after cylinder is arranged on opening, and outside and cylinder are put down, and choose certain-length, simultaneously the cylinder below the spring sheet front end is hollowed out, and reserves deformation space to spring.
The opening of outlet end is a circular hole, and the interface on the corresponding with it circulation section ball pipe circulation section is then similar with the opening of entry end.The opening true dip direction in outlet port is opposite, and spring sheet is located on the baffle ring.
The slide block that this method forms, what of open section quantity no matter, circulation section ball pipe only needs one, no matter is which open section, as long as when the condition of introducing ball is satisfied in its space, can both obtain replenishing ball.
Guarantee effective running of slide block, the Circulation pipe of separating is not rotated, and confirm the mode that Circulation pipe does not rotate, can adopt off-centre, counterweight, depend on measure such as frame support.
11 represent baffle ring, are socketed on the cylinder of sleeve rack termination, do not rotate, and the opening that supplies ball pipe circulation section bend is established in the centre, like 11.1 indications; 12 represent the port of circulation section bend, and it and cylinder coincide; 13 represent the port of ball tube opening section bend, roll into opposite with the different true dip directions that roll out by ball; 14 represent ball pipe circulation section; 15 represent spring sheet; 16 represent the hollow space below the spring sheet, are beneficial to camber of spring.
Fig. 4: represent that closed ball pipe circulation section separates the another kind of form of setting with open section, opening is located at the end top of sleeve rack.It is identical that this figure and Fig. 3 construct intention, promptly the ball Guan Keshe of open section several, and the ball pipe of circulation section is equally only established one.
Left figure, the axial, cross-sectional view in the slide block intermediate portion; Right figure, the front elevation of (opening end) ball pipe mouth of pipe on the ball entrance face, promptly the partial left profile of left figure is circular arc.
Slide block construction features shown in this figure are to be provided with in the termination to dial cutter; Group cutter of entry end is fixedly installed on the sleeve rack, and with the sleeve rack rotation, the opening that in rotation, is provided with on the incision circulation section ball pipe is got into open section with ball; Group cutter of outlet end is fixedly installed on the ball pipe of circulation section, on the ball pipe of open section, opening is set.Dial the cutter front end spring sheet is set, mechanism is identical with Fig. 3's.
Entry end transfers to ball also to need a time course with dialling cutter, promptly ball be gradually by circulation section excessively in the ball pipe of open section, therefore, the interface of corresponding opening section also is one and goes into dark wealthy mouth gradually, is one section and is circular-arc plane opening.Outlet end, wealthy mouthful be located on the Circulation pipe, with opening in like manner.
The block bead ring is located at the end top, is fixedly connected with circulation section ball pipe, fixedly installs.
The knife rest of dialling cutter is installed in 17 representatives; The inclined-plane of cutter is dialled in 18 representatives, in order to the extruding ball, makes it mobile.19 represent spring sheet; 5.1 representative is located at the opening on the circulation section ball pipe, dials cutter and cuts thus; 20 represent wealthy mouthful of circular arc.
Embodiment:
With type shown in Figure 1 is example, establishes to contain two closed ball pipes on the sleeve rack:
1, makes sleeve rack with rigid material: select one section steel pipe intercepting suitable length as sleeve rack;
2, closed ball pipe straight section processing:
A. through the standardized straight line in steel pipe axle center, produces two line segments, respectively as the base of two closed ball pipes;
B. be that two concentric circles are drawn in the center of circle with the steel pipe axle center,, four intersection points occur respectively at two top line segment intersections;
C. two intersection points on the same line segment are one group, respectively the center of circle of circulation section, open section ball pipe;
D. hole respectively with above-mentioned 4 centers of circle by same radius, draw the straight section of ball pipe.
3, closed ball pipe bend is partly processed:
A. selecting the internal diameter steel pipe identical with the ball bore, is that diameter bends 2 annulus with the difference of above-mentioned drawn concentrically ringed radius;
B. annulus is divided into two, draws semicircular bend;
C. respectively 4 bends are docked with the ball pipe of 4 straight sectioies, fix, form closed duct (dress ball earlier).
4, processing open section: steel pipe is after finish the work of 1,2 steps, by the structure form shown in shown in Figure 11 (noticing that Fig. 1 is one group of closed ball pipe, has become two groups of holes now), milling sleeve rack inside and outside wall, formation open section.
5, the ball of packing into is fixedly connected.
6, the torsion slide block forms.
Claims (3)
1. slide block; Be a kind of sliding bearing, become, the ball circulation of in closed ball pipe, rolling by sleeve rack, ball, closed ball pipe and other auxiliary supporting component sets with torsion capacity; Closed ball pipe is arranged in the sleeve rack; It is characterized in that: closed ball pipe and sleeve lining intersect, and in the side opening are set, and make ball intersect power transmission at opening and rotatingshaft ball grooves sidewall; The sleeve rack setting structure of encorbelmenting, support openings section ball pipe or directly support ball.
2. sliding bearing as claimed in claim 1 is characterized in that: walking abreast with it in closed ball tube opening section is provided with screw reamer, stirs ball with reamer, makes it to relatively rotate axle and initiatively rolls, and drives sleeve rack active slip vertically; Pinion mate is set on mangler shaft, and with the gearwheel engagement that is installed on the frame and can slides synchronously with slide block, small gear gains impetus mangler shaft along the star-like rolling of gearwheel; Through adjustment gearwheel rotating speed, and then regulate the reamer rotating speed.
3. sliding bearing as claimed in claim 1 is characterized in that: the circulation section of closed ball pipe, open section can divide and be arranged, the corresponding a plurality of open sections of circulation section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102852703A CN102401101A (en) | 2010-09-10 | 2010-09-10 | Sliding block with twisting capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102852703A CN102401101A (en) | 2010-09-10 | 2010-09-10 | Sliding block with twisting capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401101A true CN102401101A (en) | 2012-04-04 |
Family
ID=45883612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102852703A Pending CN102401101A (en) | 2010-09-10 | 2010-09-10 | Sliding block with twisting capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939820A (en) * | 2017-12-29 | 2018-04-20 | 昆山嘉玮泰传动科技有限公司 | The closed shaft and electronic equipment of torsional force linear change |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001082570A (en) * | 1999-09-16 | 2001-03-27 | Wataru Okada | Linear motion clutch mechanism |
| CN1993574A (en) * | 2004-08-03 | 2007-07-04 | Zf操作系统有限公司 | Ball bearing helical gearing for an electromechanical steering system and nut for a ball bearing helical gearing |
| CN101023284A (en) * | 2004-09-16 | 2007-08-22 | 科学技术有限会社 | Method and device for power transmission with load-sensing thrust amplifying mechanism |
| CN201215163Y (en) * | 2008-03-18 | 2009-04-01 | 全球滚珠科技股份有限公司 | Ball screw device |
| CN101709770A (en) * | 2009-07-01 | 2010-05-19 | 中国科学院光电研究院 | Transmission mechanism |
-
2010
- 2010-09-10 CN CN2010102852703A patent/CN102401101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001082570A (en) * | 1999-09-16 | 2001-03-27 | Wataru Okada | Linear motion clutch mechanism |
| CN1993574A (en) * | 2004-08-03 | 2007-07-04 | Zf操作系统有限公司 | Ball bearing helical gearing for an electromechanical steering system and nut for a ball bearing helical gearing |
| CN101023284A (en) * | 2004-09-16 | 2007-08-22 | 科学技术有限会社 | Method and device for power transmission with load-sensing thrust amplifying mechanism |
| CN201215163Y (en) * | 2008-03-18 | 2009-04-01 | 全球滚珠科技股份有限公司 | Ball screw device |
| CN101709770A (en) * | 2009-07-01 | 2010-05-19 | 中国科学院光电研究院 | Transmission mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939820A (en) * | 2017-12-29 | 2018-04-20 | 昆山嘉玮泰传动科技有限公司 | The closed shaft and electronic equipment of torsional force linear change |
| CN107939820B (en) * | 2017-12-29 | 2024-06-07 | 昆山嘉玮泰传动科技有限公司 | Enclosed rotating shaft with linearly-changed torsion and electronic equipment |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |