CN103939577B - The lateral clearance adjusting device of rack pinion pair and method - Google Patents
The lateral clearance adjusting device of rack pinion pair and method Download PDFInfo
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- CN103939577B CN103939577B CN201410145114.5A CN201410145114A CN103939577B CN 103939577 B CN103939577 B CN 103939577B CN 201410145114 A CN201410145114 A CN 201410145114A CN 103939577 B CN103939577 B CN 103939577B
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- adjustment piece
- tooth bar
- adjustment
- adjusting device
- transmission part
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 241000283984 Rodentia Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gears, Cams (AREA)
Abstract
The present invention proposes the secondary and lateral clearance adjusting device of a kind of rack pinion and adjusting method, and lateral clearance adjusting device comprises: bottom transmission part, is arranged on the below of tooth bar; First adjustment piece, connects and between tooth bar and bottom transmission part, and can extend and shorten to adjust the perpendicular distance of tooth bar relative to gear; And second adjustment piece, to connect and between tooth bar and bottom transmission part, and can extend and shorten to adjust the horizontal equivalent of tooth bar relative to gear.Adjust in the process of sideshake in the present invention, when sideshake is excessive, first adjustment piece first unclamps by user, then adjust the second adjustment piece, after position adjustment is suitable, adjusts the first adjustment piece and make it closely to abut tooth bar and fix the first adjustment piece, make the first adjustment piece compression chord and the second adjustment piece tension stress, such the and second adjustment piece all receives pretightening force, thus effectively prevent loosening of scyewed joint, can adjust the gap of rack pinion pair quickly and easily.
Description
Technical field
The present invention relates to mechanical transmission, particularly relate to a kind of lateral clearance adjusting device and method of rack pinion pair.
Background technique
In the installation and using process of the secondary particularly pin rack transmission of rack pinion, the following situation of unavoidable appearance:
1. after wheel and rack assembling, physical dimension is larger, cannot meet transportation demand, must separately transport, and assembles behind scene again, because equipment erecting bed lacks professional tool, causes equipment adjustment difficulty;
2. the secondary long-term work of rack-driving, there are wearing and tearing in gear teeth face and tooth bar, causes the sideshake of transmission to increase, when the forward and reverse running of gear, will produce larger impulsive load, not only affect the working life of device, also can produce very large noise.
Summary of the invention
The object of the invention is the lateral clearance adjusting device and the method that propose a kind of rack pinion pair, the problem brought with the wearing and tearing of the gear teeth face and pin rack that solve prior art existence.
For achieving the above object, the present invention proposes a kind of lateral clearance adjusting device of rack pinion pair, and for adjusting the sideshake of pitch wheel and tooth bar, described tooth bar is arranged on the below of described gear, and described lateral clearance adjusting device comprises:
Bottom transmission part, is arranged on the below of described tooth bar;
First adjustment piece, connects and between described tooth bar and described bottom transmission part, and can extend and shorten to adjust the perpendicular distance of described tooth bar relative to described gear; And
Second adjustment piece, connects and arranges obliquely between described tooth bar and described bottom transmission part, and can extend and shorten to adjust described tooth bar relative to the perpendicular distance of described gear and horizontal position.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, described tooth bar is pin rack, described pin rack comprises cotter way and the parallel multiple pins be plugged in described cotter way, one end of described second adjustment piece is connected to the side-wall outer side of described cotter way, and described first adjustment piece is connected to the bottom of described cotter way.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, described second adjustment piece relative to described gear rack and described bottom transmission part in being in tilted layout.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, described first adjustment piece comprises:
Vertical adjusting nut, is fixedly connected on the below of described pin rack; And
Vertical adjustment screw rod, be fixedly connected on the top of described bottom transmission part, and be threaded with described vertical adjusting nut, by rotating described vertical adjusting nut, described vertical adjusting nut can change with described vertical adjustment screw flight screwing length, and described first adjustment piece can be elongated or shortened.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, described second adjustment piece comprises:
Top stay-bolt, its one end is fixedly connected on described pin rack;
Bottom stay-bolt, its one end is fixedly connected on described bottom transmission part; And
Length adjustment nut, the two ends of described length adjustment nut have screw section respectively, described two screw sections are connected to the other end of described top stay-bolt and the other end of described bottom stay-bolt, the length of thread engagement of described length adjustment nut and described top stay-bolt and the length of thread engagement of described length adjustment nut and described bottom stay-bolt can change, and described second adjustment piece can be elongated or shortened.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, the number of described first adjustment piece is four, described first adjustment piece is that front two rows is arranged along the axial direction of described gear, and described first adjustment piece in each row is symmetrical along the vertical center line of described gear.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, the number of described second adjustment piece is four, and is positioned at the same side of described pin rack and described bottom transmission part between two.
In an embodiment of the lateral clearance adjusting device of rack pinion pair of the present invention, described second adjustment piece being positioned at described pin rack and transmission part both sides, described bottom is symmetrical.
The present invention also proposes a kind of rack pinion pair with lateral clearance adjusting device, comprising:
Tooth bar;
Gear, is arranged on the top of described tooth bar and engages with described tooth bar;
Bottom transmission part, is arranged on the below of described tooth bar;
First adjustment piece, connects and between described tooth bar and described bottom transmission part, and can extend and shorten to adjust the perpendicular distance of described tooth bar relative to described gear; And
Second adjustment piece, connects and is arranged at obliquely between described tooth bar and described bottom transmission part, and can extend and shorten to adjust described tooth bar relative to the perpendicular distance of described gear and horizontal position.
The present invention also proposes a kind of sideshake adjusting method of rack pinion pair, applies the lateral clearance adjusting device of above-mentioned rack pinion pair, and described sideshake adjusting method comprises:
First adjustment piece and tooth bar are disengaged;
Adjust described second adjustment piece, to change described tooth bar relative to the perpendicular distance of described gear and horizontal position;
Adjust described first adjustment piece to make it to be subject to the pressure stress from described tooth bar, and make described second adjustment piece by the tensile stress from described tooth bar; And
Fastening described first adjustment piece, makes described first adjustment piece length fix.
Adjust in the process of sideshake in the present invention, when sideshake is excessive, first adjustment piece first unclamps by user, then adjusts the second adjustment piece, after position adjustment is suitable, adjust the first adjustment piece make it closely to abut tooth bar and fix the first adjustment piece, make the first adjustment piece compression chord, and the second adjustment piece tension stress, such first adjustment piece and the second adjustment piece all receive pretightening force, thus effectively prevent loosening of scyewed joint, the gap of rack pinion pair can be adjusted quickly and easily.
Accompanying drawing explanation
The lateral clearance adjusting device plan view of Fig. 1 pin rack transmission;
The lateral clearance adjusting device left view of Fig. 2 pin rack transmission.
Embodiment
The lateral clearance adjusting device of rack pinion pair of the present invention is described below in conjunction with accompanying drawing.Wherein, this lateral clearance adjusting device can be applied to rack pinion pair, and it is relatively more severe to be preferably applied to Environmental Conditions condition, and wear and tear more serious pin rack transmission.The following drawings is described for pin rack transmission.
Plan view and the left view of the pin rack transmission with lateral clearance adjusting device is respectively in one embodiment of the invention shown in Fig. 1 and Fig. 2.As depicted in figs. 1 and 2, the pin rack transmission with lateral clearance adjusting device comprises pin rack 10, gear 20, bottom transmission part 30, first adjustment piece 40 and the second adjustment piece 50.Wherein, gear 20 is arranged at the top of pin rack 10, and pin rack 10 comprises cotter way and is set in parallel in many pins in cotter way.Gear 20 can rotate and close with many pin rodents, thus realizes pin tooth transmission.
First adjustment piece 40 is vertically disposed adjustment piece, comprises vertical adjusting nut 41 and comprises top stay-bolt 51, length adjustment nut 52 and bottom stay-bolt 53 with vertical adjustment screw rod 42, second adjustment piece 50.Wherein:
Pin rack 10 and gear 20 engage each other, and are connected between pin rack 10 and bottom transmission part 30 by the first adjustment piece 40 with the second adjustment piece 50.
First adjustment piece 40 is between pin rack 10 and bottom transmission part 30, wherein vertical adjusting nut 41 is arranged on the bottom of pin rack 10, vertical adjustment screw rod 42 is arranged on the top of bottom transmission part 30 and can fixes with the top of bottom transmission part 30, vertical adjusting nut 41 and vertical adjustment screw rod 42 are by threaded engagement together, by rotational vertical adjusting nut 41, can make vertically to adjust screw rod 42 lengthen with the length of thread engagement of vertical adjusting nut 41 or reduce, thus (the B direction shown in Fig. 1) makes pin rack 10 relatively rise or fall accordingly in the vertical direction, thus eliminate the down suction of pin rack 10 and gear 20.
In the present embodiment, shown in composition graphs 1 and Fig. 2, the number of the first adjustment piece 40 is four, and two the first adjustment pieces 40 are that front two rows is arranged along the axial direction of gear 20, and the vertical center line of the first adjustment piece in each row roughly along gear 20 is symmetrical.In other embodiments, the first adjustment piece 40 also can be other numbers, and the present invention is not as limit.
Second adjustment piece 50 is obliquely installed between pin rack 10 and bottom transmission part 30, herein " inclination " refer to that the second adjustment piece 50 was both non-vertically arranged, also non-horizontally arrange.One end of its middle and upper part stay-bolt 51 is connected to pin rack 10 rotationally, one end of bottom stay-bolt 53 is connected to bottom transmission part 30 rotationally, the two ends of length adjustment nut 52 have screw section respectively, and two screw sections are threadedly connected to the other end of top stay-bolt 51 and the other end of bottom stay-bolt 53 respectively.Wherein, rotate length adjustment nut 52 and can change one of them screw section of length adjustment nut 52 and the length of thread engagement of top stay-bolt 51, and change another screw section of length adjustment nut 52 and the length of thread engagement of bottom stay-bolt 53.That is, by rotating length adjustment nut 52, the length of the second adjustment piece 50 can be changed, thus realize the horizontal position adjustment of trace.
In the process of adjustment sideshake, when sideshake is excessive, user first makes the first adjustment piece 40 disengage with tooth bar 10, then the length adjustment nut 52 of the second adjustment piece 50 is adjusted, second adjustment piece 50 is extended, after position adjustment is suitable, upwards extend the first adjustment piece 40, the first adjustment piece 40 is made closely to abut pin rack 10, and fix the first adjustment piece 40, make the first adjustment piece 40 compression chord, and the second adjustment piece 50 tension stress, such first adjustment piece and the second adjustment piece all receive pretightening force, thus effectively prevent loosening of scyewed joint.From the above, the second adjustment piece 50 just can roughly by suitable for the adjustment of the position of pin rack 10.First adjustment piece 40 is also played a supporting role while playing corrective action.
In the present embodiment, as shown in Figure 2, pin rack 10 and bottom transmission part 30 have identical width, shown in composition graphs 1 and Fig. 2, the number of the second adjustment piece 50 is four, it is positioned at the same side of pin rack 10 and bottom transmission part 30 between two, and is positioned at pin rack 10 and bottom transmission part 30 both sides second adjustment piece 50 is preferably set to symmetrically, to facilitate adjustment.But in other embodiments, number and the set-up mode of the second adjustment piece 50 can be not construed as limiting.
Sideshake between pin rack 10 and gear 20 adjust suitable after, tighten the length adjustment nut 52 of each the second adjustment piece 50, make pin rack 10 and bottom transmission part 30 form a rigidly connected entirety, so just achieve the quick adjustment of pin rack transmission sideshake.
In sum, adjust in the process of sideshake in the present invention, when sideshake is excessive, first adjustment piece first unclamps by user, then the second adjustment piece is adjusted, after position adjustment is suitable, adjust the first adjustment piece make it closely to abut pin rack and fix the first adjustment piece, make the first adjustment piece compression chord, and the second adjustment piece tension stress, such first adjustment piece and the second adjustment piece all receive pretightening force, thus effectively prevent loosening of scyewed joint, can the gap of adjusting pin rack-driving pair quickly and easily.
In addition, no matter be when equipment is installed for the first time, or after there are wearing and tearing in equipment long-term work, lateral clearance adjusting device provided by the invention can carry out adjusting efficiently in time to the work sideshake of pin rack transmission, make the sideshake level that pin rack transmission remains suitable, reduce impulsive load, reduce noise, extension device working life.
In addition, it is secondary that the present invention can be applied to general rack pinion, more preferably pin rack transmission is applied to, pin rack transmission General Requirements precision is not high, and environmental conditions is relatively more severe, wearing and tearing are more serious, so the demand of adjustment sideshake is more urgent, that is, lateral clearance adjusting device of the present invention is applied on pin rack transmission and has more outstanding effect.
Although exemplary embodiment describe the present invention with reference to several, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit of the present invention or essence is not departed from because the present invention can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and should explain widely in the spirit and scope that claims limit, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claims and contained.
Claims (10)
1. the lateral clearance adjusting device of a rack pinion pair, for adjusting the sideshake of pitch wheel (20) and tooth bar (10), described tooth bar (10) is arranged on the below of described gear (20), it is characterized in that, described lateral clearance adjusting device comprises:
Bottom transmission part (30), is arranged on the below of described tooth bar (10);
First adjustment piece (40), connect and be positioned between described tooth bar (10) and described bottom transmission part (30), and can extend and shorten to adjust the perpendicular distance of described tooth bar (10) relative to described gear (20); And
Second adjustment piece (50), connect and be arranged at obliquely between described tooth bar (10) and described bottom transmission part (30), and can extend and shorten to adjust described tooth bar (10) relative to the perpendicular distance of described gear (20) and horizontal position.
2. the lateral clearance adjusting device of rack pinion pair as claimed in claim 1, it is characterized in that, described tooth bar (10) is pin rack, described pin rack comprises cotter way and the parallel multiple pins be plugged in described cotter way, one end of described second adjustment piece (50) is connected to the side-wall outer side of described cotter way, and described first adjustment piece (40) is connected to the bottom of described cotter way.
3. the lateral clearance adjusting device of rack pinion pair as claimed in claim 2, is characterized in that, described second adjustment piece (50) relative to described pin rack (10) and described bottom transmission part (30) in being in tilted layout.
4. the lateral clearance adjusting device of rack pinion pair as claimed in claim 2, it is characterized in that, described first adjustment piece (40) comprising:
Vertical adjusting nut (41), is fixedly connected on the below of described pin rack (10); And
Vertical adjustment screw rod (42), be fixedly connected on the top of described bottom transmission part (30), and be threaded with described vertical adjusting nut (41), by rotating described vertical adjusting nut (41), described vertical adjusting nut (41) can change with the length of thread engagement of described vertical adjustment screw rod (42), and described first adjustment piece (40) can be elongated or shortened.
5. the lateral clearance adjusting device of rack pinion pair as claimed in claim 2, it is characterized in that, described second adjustment piece (50) comprising:
Top stay-bolt (51), its one end is fixedly connected on described pin rack (10);
Bottom stay-bolt (53), its one end is fixedly connected on described bottom transmission part (30); And
Length adjustment nut (52), the two ends of described length adjustment nut (52) have screw section respectively, two described screw sections are connected to the other end on described top stay-bolt (51) and the other end of described bottom stay-bolt (53), described length adjustment nut (52) can change with the length of thread engagement on described top stay-bolt (51) and the length of thread engagement of described length adjustment nut (52) and described bottom stay-bolt (53), and described second adjustment piece (50) can be elongated or shortened.
6. the lateral clearance adjusting device of rack pinion pair as claimed in claim 2, it is characterized in that, the number of described first adjustment piece (40) is four, described first adjustment piece (40) is that front two rows is arranged along the axial direction of described gear (20), and described first adjustment piece (40) in each row is arranged symmetrically with along the vertical center line of described gear (20).
7. the lateral clearance adjusting device of rack pinion pair as claimed in claim 2, it is characterized in that, the number of described second adjustment piece (50) is four, and is positioned at the same side of described pin rack (10) and described bottom transmission part (30) between two.
8. the lateral clearance adjusting device of rack pinion pair as claimed in claim 7, it is characterized in that, described second adjustment piece (50) being positioned at described pin rack (10) and transmission part (30) both sides, described bottom is symmetrical.
9. a rack pinion with lateral clearance adjusting device is secondary, it is characterized in that, comprising:
Tooth bar (10);
Gear (20), is arranged on the top of described tooth bar (10) and engages with described tooth bar (10);
Bottom transmission part (30), is arranged on the below of described tooth bar (10);
First adjustment piece (40), connect and be positioned between described tooth bar (10) and described bottom transmission part (30), and can extend and shorten to adjust the perpendicular distance of described tooth bar (10) relative to described gear (20); And
Second adjustment piece (50), connect and be arranged at obliquely between described tooth bar (10) and described bottom transmission part (30), and can extend and shorten to adjust described tooth bar (10) relative to the perpendicular distance of described gear (20) and horizontal position.
10. a sideshake adjusting method for rack pinion pair, the lateral clearance adjusting device of the rack pinion pair of application according to any one of claim 1-8, it is characterized in that, described sideshake adjusting method comprises:
First adjustment piece (40) and tooth bar (10) are disengaged;
Adjust described second adjustment piece (50), to change described tooth bar (10) relative to the perpendicular distance of described gear (20) and horizontal position;
Adjust described first adjustment piece (40), make it to be subject to the pressure stress from described tooth bar (10), and make described second adjustment piece (50) by the tensile stress from described tooth bar (10); And
Fastening described first adjustment piece (40), makes described first adjustment piece (40) length fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145114.5A CN103939577B (en) | 2014-04-11 | 2014-04-11 | The lateral clearance adjusting device of rack pinion pair and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145114.5A CN103939577B (en) | 2014-04-11 | 2014-04-11 | The lateral clearance adjusting device of rack pinion pair and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939577A CN103939577A (en) | 2014-07-23 |
| CN103939577B true CN103939577B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410145114.5A Expired - Fee Related CN103939577B (en) | 2014-04-11 | 2014-04-11 | The lateral clearance adjusting device of rack pinion pair and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106845046B (en) * | 2017-04-14 | 2019-10-01 | 东北大学 | Straight spur gear abrasion loss calculation method |
| CN110562317B (en) * | 2019-08-30 | 2022-01-07 | 扬州华昌汽车电器有限公司 | Rack supporting structure of automobile commutator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3572158A (en) * | 1968-08-30 | 1971-03-23 | Cam Gears Ltd | Resiliently deformable rack bar support for rack and pinion assembly |
| EP0039154A1 (en) * | 1980-04-28 | 1981-11-04 | CAM GEARS Limited | A bearing assembly |
| EP1352807A2 (en) * | 2002-04-13 | 2003-10-15 | Mando Corporation | Vehicle steering system having rack bar supporting apparatus |
| CN101410288A (en) * | 2006-04-04 | 2009-04-15 | 蒂森克鲁伯普雷斯塔转向技术有限公司 | Rack and pinion steering gear with automatic adjustment of the thrust element |
| CN201992029U (en) * | 2011-05-09 | 2011-09-28 | 上海三一精机有限公司 | Gear rack anti-backlash adjusting mechanism |
| CN203082167U (en) * | 2012-12-26 | 2013-07-24 | 王俊峰 | Elevator gear rack transmission mechanism and adjustable elastic backrest wheel device |
-
2014
- 2014-04-11 CN CN201410145114.5A patent/CN103939577B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3572158A (en) * | 1968-08-30 | 1971-03-23 | Cam Gears Ltd | Resiliently deformable rack bar support for rack and pinion assembly |
| EP0039154A1 (en) * | 1980-04-28 | 1981-11-04 | CAM GEARS Limited | A bearing assembly |
| EP1352807A2 (en) * | 2002-04-13 | 2003-10-15 | Mando Corporation | Vehicle steering system having rack bar supporting apparatus |
| CN101410288A (en) * | 2006-04-04 | 2009-04-15 | 蒂森克鲁伯普雷斯塔转向技术有限公司 | Rack and pinion steering gear with automatic adjustment of the thrust element |
| CN201992029U (en) * | 2011-05-09 | 2011-09-28 | 上海三一精机有限公司 | Gear rack anti-backlash adjusting mechanism |
| CN203082167U (en) * | 2012-12-26 | 2013-07-24 | 王俊峰 | Elevator gear rack transmission mechanism and adjustable elastic backrest wheel device |
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| Publication number | Publication date |
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| CN103939577A (en) | 2014-07-23 |
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