CN203223436U - Flange type double-rack swinging cylinder - Google Patents
Flange type double-rack swinging cylinder Download PDFInfo
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- CN203223436U CN203223436U CN 201320215899 CN201320215899U CN203223436U CN 203223436 U CN203223436 U CN 203223436U CN 201320215899 CN201320215899 CN 201320215899 CN 201320215899 U CN201320215899 U CN 201320215899U CN 203223436 U CN203223436 U CN 203223436U
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- flange
- type double
- cylinder
- encoder
- gear shaft
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Abstract
The utility model provides a flange type double-rack swinging cylinder which comprises a cylinder body (1), a cylinder bottom (3), a cylinder barrel (2), a flange (4), a gear shaft (5), a rack (6), a bearing bush (7), a bearing front cover (8), a bearing rear cover (9), an encoder (10) including a shaft end (15) and a base board (11), the shaft end (15) of the encoder (10) penetrates through the base board (11) to be arranged into the gear shaft (5) and fixed on the bearing rear cover (9), and the flange type double-rack swinging cylinder further comprises a shaft block (16). The shaft block (16) is sleeved on the shaft end (15) of the encoder (10), one end of the gear shaft (5) is provided with a corresponding hole for containing the shaft block (16). The flange type double-rack swinging cylinder is reliable in steering angle signal, convenient to disassemble and maintain and repair and controllable in tail end buffering.
Description
Technical field
The utility model belongs to heavy engineering transportation equipment field, particularly a kind of flange-type double rack swing cylinder.
Background technique
In recent years, flourish along with the heavy engineering transportation equipment, all types of special purpose vehicles more and more drops into exploitation and uses, and the user is also more and more higher to the requirement of vehicle performance.Double rack swing cylinder formula independent steering gear is arranged characteristics such as compact, that steering angle is big, oil cylinder working-pressure is stable because of its mechanical efficiency height, space, is researched and developed widely, and is applied on various types of heavy engineering transportation equipments.
Traditional flange-type double rack oscillating motor partly is made up of body, cylinder barrel, cylinder bottom, gland, bearing shell, tooth bar, gear shaft etc.In the process of practical application, there are some shortcoming and defect, concrete division is as follows:
1. present special car user all has strict demand to the reliability of steering angle, at this moment steering angle determining method just seems particularly important, and conventional measurement scheme is often because of the difference of angle transducer riding position, there is certain deviation and cause the car load corner to measure, such as mechanical linkage, its steering angle sensor often is placed on its a certain articulating point, then the angle value of its mensuration need be through being only last Vehicular turn angle after a series of calculating conversion, just there is the accumulation of error in this measurements and calculations process, thereby cause the accuracy of angle signal to be guaranteed, can't realize turning to accurately control.
2. the space layout of special-purpose vehicle has nothing in common with each other, and this just requires the mounting type of swing cylinder also corresponding with it, can finish rational space and arrange.But present flanged double rack oscillating motor, its mounting flange face is the lower surface of oil cylinder body, opens corresponding bolt mounting holes thereon, with below turn to actuator fixedly the time, bolt is installed vertically upward.Actuator's complex structure when swing cylinder below, and when being not easy to disassemble, carry out the maintenance of swing cylinder at every turn, all need the actuator of swing cylinder below is all disassembled, can finish swing cylinder and disassemble from whole steering equipment, maintenance is poor, is not easy to produce actual demand.
3. the buffer problem when common oscillating oil cylinder, the plug that is spirally connected at oil cylinder cylinder bottom place, the stroke that perhaps only limits tooth bar are handled oil cylinder and moved to maximum angle.This class scheme bundle has been made an appointment with the pendulum angle of swing cylinder, can't realize the swing of maximum angle at the tooth bar of certain-length, and is in the mounting point of some structural requirement compactnesses, especially outstanding; And such buffering, be actually the mode by before piston moves to range, building the pressure, press the recoil pressure of fluid to cushion by intraluminal fluid, work long hours, the seal ring between wearing out of oil cylinder internal structure and worn piston and the chamber wall is accelerated in meeting, finally cause turning to the oil cylinder internal leakage and turn to inefficacy, the perhaps outside leakage of oil of oil cylinder.
The model utility content
The purpose of this utility model is to solve the problem that prior art exists, and a kind of flange-type double rack tilt cylinder is provided, and its steering angle signal is reliable, it is controlled to disassemble buffering easy to maintenance and terminal.
In order to reach above-mentioned technical purpose, the utility model by the following technical solutions:
A kind of flange-type double rack swing cylinder, comprise body 1, cylinder bottom 3, cylinder barrel 2, flange 4, gear shaft 5, tooth bar 6, bearing shell 7, bearing protecgulum 8, bearing bonnet 9, the encoder 10 that includes axle head 15, base plate 11, the axle head 15 of described encoder 10 passes base plate 11 and inserts gear shaft 5 and be fixed on the bearing bonnet 9, also comprise a piece 16, described axle piece 16 is sheathed on the axle head 15 of encoder 10, and an end of described gear shaft 5 is provided with the corresponding hole that holds a piece 16.
Preferred as such scheme, described axle piece 16 is square or spline shape, the hole on described gear shaft 5 end faces also correspondingly is square opening or splined hole.
Preferred as such scheme, the hole on described gear shaft 5 end faces, axle piece 16, encoder 10 and gear shaft 5 coaxial settings.
Preferred as such scheme, described bearing bonnet 9 is provided with encoder cable hole 43.
Preferred as such scheme, the attachment face of body 1 is an abducent flanged surface 46.
Preferred as such scheme, also comprise damping device, described damping device comprises: piston 31, buffering spool 35, spring 36, gland 38, DU cover 37 and modulating valve 30, described piston 31 places the end of described tooth bar 6 to be located in the cylinder barrel 2, spring 36 is connected in the piston 31 successively with buffering spool 35, Du cover 37 is sheathed on the outside of buffering spool 35, and gland 38 passes buffering spool 35 and is fixed on the piston 31; Modulating valve 30 is located in the cylinder bottom 3, is provided with in the cylinder bottom 3 to hold the corresponding groove 34 of buffering spool 35.
Preferred as such scheme, described piston 31 contacts by seal ring 41 and copper ring 42 with described cylinder barrel 2, and the surface of contact of described cylinder bottom 3 and described cylinder barrel 2 is provided with back-up ring 32 and O type circle 33.
Preferred as such scheme, described gland 38 is bolted on the described piston 31.
Preferred as such scheme, described cylinder bottom 3 is welded on the end face of described cylinder barrel 2.
Owing to have said structure, the utility model has the following advantages compared to existing technology:
1, the axle head at encoder arranges an axle piece, in the corresponding position of gear shaft the hole that holds this piece is set simultaneously, realizes the accurate location of encoder, reduces the error of measurement result, makes test signal more reliable.
2, the attachment face with the swing cylinder body is designed to an abducent flanged surface, makes the installation and removal of swing cylinder and actuator convenient.
3, buffer structure is set in swing cylinder, when making tooth bar realize the swing of maximum angle, realizes the controlled of buffering, thereby prolong the life-span of swing cylinder inner components.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is three-dimensional profile figure of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is the half sectional view of looking up of the present utility model;
Fig. 4 is that the P of Fig. 3 is to half sectional view;
Fig. 5 is the installation view of encoder;
Fig. 6 is that the I-I of Fig. 2 is to sectional view;
Fig. 7 is end of travel buffering sectional view.
The reference numeral explanation:
1: body 2: cylinder barrel 3: cylinder bottom 4: flange 5: gear shaft 6: tooth bar 7: bearing shell
8: bearing protecgulum 9: bearing bonnet 10: encoder 11: base plate 12: setting sleeve
13: tapered roller bearing 14: flat key 15: encoder axle 16: axle piece 17: guard shield
18,22,26,39: hexagon socket head cap screw 19,21,23,27,29,45: spring washer
20, positioning screwn 24,28: bolt 25: plain washer 30: modulating valve 31: piston
32: back-up ring 33:O type circle 34: cylinder bottom groove 35: buffering spool 36: spring
37:DU cover 38: gland 40,44: fastening screw trip bolt 41: seal ring 42: copper ring
43: encoder cable hole 46: the expansion flange
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Fig. 1-7, the invention provides a kind of flange-type double rack swing cylinder, comprise body 1, cylinder bottom 3, cylinder barrel 2, flange 4, gear shaft 5, tooth bar 6, bearing shell 7, bearing protecgulum 8, bearing bonnet 9, the encoder 10 that comprises axle head 15, base plate 11, square shaft piece 16, the axle head 15 of described encoder 10 passes base plate 11 and inserts gear shaft 5 and be fixed on the bearing bonnet 9, as shown in Figure 5, described square shaft piece 16 is sheathed on the axle head 15 of encoder 10, as shown in Figure 6, an end of described gear shaft 5 is provided with the corresponding square hole that holds a piece 16.Square hole on described gear shaft 5 end faces, square shaft piece 16, encoder 10 and gear shaft 5 coaxial settings.Described bearing bonnet 9 is provided with encoder cable hole 43.
Shown in Fig. 5,6, during installation, encoder axle 15 on the encoder 10 is passed base plate 11 and be bolted on the circumferential surface of base plate 11, again axle piece 16 is inserted in the axle head 15 of encoder 10, in the square hole in the axle piece 16 embedding gear shafts 5, with bolt 28 and spring washer 29 base plate 11 is fixed on the bearing bonnet 9, can realizes very easily that like this centering of encoder is adjusted, and note the change information of steering angle accurately.The encoder cable passes the encoder cable hole 43 on the bearing bonnet 9 among Fig. 6, turn signal is delivered in the corresponding controller, and makes corresponding processing mode.
As shown in Figure 4, the attachment face of body 1 is an abducent flanged surface 46.Body 1 mounting flange face adopts the expansion flange-type to install, and namely on the basis of body 1 main body, to the width of a flange of 4 direction extensions, and opens corresponding bolt mounting holes.When swing cylinder was vertically installed down, bolt was from top to bottom fixed, and when swing cylinder is disassembled, can disassemble from top to down fast and accurately, and maintenance is stronger.
Shown in Fig. 3,7, a kind of flange-type double rack tilt cylinder provided by the invention also comprises damping device, described damping device comprises: piston 31, buffering spool 35, spring 36, gland 38, DU cover 37 and modulating valve 30, described piston 31 places the end of described tooth bar 6 to be located in the cylinder barrel 2, spring 36 is connected in the piston 31 successively with buffering spool 35, Du cover 37 is sheathed on the outside of buffering spool 35, and gland 38 passes buffering spool 35 and is fixed on the piston 31; Modulating valve 30 is located in the cylinder bottom 3, is provided with in the cylinder bottom 3 to hold the corresponding groove 34 of buffering spool 35.Described piston 31 contacts by seal ring 41 and copper ring 42 with described cylinder barrel 2, and described cylinder bottom 3 is provided with back-up ring 32 and O type circle 33 with the surface of contact of described cylinder barrel 2.Described gland 38 is bolted on the described piston 31.Described cylinder bottom 3 is welded on the end face of described cylinder barrel 2.
When tooth bar 6 moved to end of travel, fluid impacted cylinder bottom 3, and formed the backflow back pressure, and the effect of deceleration is played in the motion of piston 31, had reduced the motion speed of tooth bar 6 accordingly; Simultaneously, buffering spool 35 stretches into cylinder bottom 3 at the groove 34 of cylinder inboard.Buffering spool 35 touches groove 34 bottoms of cylinder bottom 3 and no longer moves.When tooth bar 6 continues toward terminal motion, gland 38 continues motion under the promotion of tooth bar 6, this moment piston 31 with gland 38 and tooth bar 6 bolt each other, so motion state unanimity, and between buffering spool 35 and the piston 31 spring 36 is installed, the motion of relative compression is arranged between the two, at this moment spring 36 shrinks, and piston 31 further slowed down, until piston 31 stop motions, that is tooth bar 6 stop motions, gear shaft 5 stops swinging, with the direct collision that prevents from producing between the maximum hour rack piston 31 of pendulum angle and the cylinder bottom 3.
The installation method of a kind of flange-type double rack tilt cylinder provided by the invention is as follows:
1. tooth bar 6 two-port of piston 31 being packed into, fixing with fastening screw trip bolt 40, with seal ring 41, copper ring 42, spring 36, buffering spool 35, Du cover 37 piston 31 of packing into, the gland 38 of packing into then compresses with hexagon socket head cap screw 39; With modulating valve 30, back-up ring 32, O type circle 33 cylinder bottom 3 of packing into, and then with its cylinder barrel 2 of packing into, cylinder bottom 3 adopts welding manners with cylinder barrel 2.
2. locate to pack into setting sleeve 12 in the gear upper and lower end face of gear shaft 5, the interior cover of tapered roller bearing 13 is packed on the gear shaft 5 two ends shaft shoulders, overcoat is installed in respectively on bearing protecgulum 8, the bearing bonnet 9; 2 bearing shells 7 are installed in the hole of body 1, and pack into socket head screw 20 and spring washer 21 position.
3. 2 tooth bars 6 are respectively charged in the body 1, make its two tooth relative, side face contacts with bearing shell 7.Reinstall gear shaft 5, make itself and tooth bar 6 centerings, the bearing bonnet 9 of packing into, fastening with hexagon socket head cap screw 22, spring washer 23; The bearing protecgulum 8 of packing into, fastening with hexagon socket head cap screw 26, spring washer 27.
4. encoder 10 axle heads 15 are passed base plate 11, reinstall a piece 16, then it is inserted gear shaft 5, the wire harness hole 43 that the encoder cable passes on the bearing bonnet 9 reaches the swing cylinder outside, with bolt 28, spring washer 29 base plate 11 is fixed on the bearing bonnet 9 then, with bolt 24, plain washer 25 guard shield 17 is fixed on the bearing bonnet 9 then.
5. with flange 4 cylinder barrel 2 fixedly is assemblied on the body 1, fastening with hexagon socket head cap screw 18, spring washer 19; With fastening screw trip bolt 44, spring washer 45 flat key 14 is fastened on gear shaft 5 output terminal both sides, finishes assembling.
Working principle: respectively have a hydraulic oil to import and export on the swing cylinder cylinder bottom 3, as shown in Figure 3, when hydraulic oil enters oil cylinder from A1, B2 two diagonally opposing corner hydraulic fluid ports, form an airtight active chamber at cylinder bottom 3, cylinder barrel 2, piston 31 and corresponding Sealing, under the operating oil pressure effect that constantly enters, promote two tooth bars 6 and do relative straight line motion, and driven gear axle 5 is made counter-clockwise swing.Otherwise, when hydraulic oil from A2, when B1 two diagonally opposing corner hydraulic fluid ports enter oil cylinder, two corresponding tooth bars 6 are done reversing motion under the oil liquid pressure effect, gear shaft is swung clockwise, thereby realizes forward and the backward rotation function of whole steering equipment.
A kind of flange-type tooth bar tilt cylinder that the utility model provides, its steering angle signal is reliable, it is controlled to disassemble buffering easy to maintenance and terminal, thus the working life of prolongation swing cylinder.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. flange-type double rack swing cylinder, comprise body (1), cylinder bottom (3), cylinder barrel (2), flange (4), gear shaft (5), tooth bar (6), bearing shell (7), bearing protecgulum (8), bearing bonnet (9), the encoder (10) that includes axle head (15), base plate (11), the axle head (15) of described encoder (10) passes base plate (11) and inserts gear shaft (5) and be fixed on the bearing bonnet (9), it is characterized in that, also comprise a piece (16), described axle piece (16) is sheathed on the axle head (15) of encoder (10), and an end of described gear shaft (5) is provided with the corresponding hole that holds a piece (16).
2. flange-type double rack swing cylinder according to claim 1 is characterized in that, described axle piece (16) is square or spline shape, and the hole on described gear shaft (5) end face also correspondingly is square opening or splined hole.
3. flange-type double rack swing cylinder according to claim 2 is characterized in that, the hole on described gear shaft (5) end face, axle piece (16), encoder (10) and the coaxial setting of gear shaft (5).
4. flange-type double rack swing cylinder according to claim 1 is characterized in that, described bearing bonnet (9) is provided with encoder cable hole (43).
5. flange-type double rack swing cylinder according to claim 1 is characterized in that, the attachment face of body (1) is an abducent flanged surface (46).
6. flange-type double rack swing cylinder according to claim 1 or 5, it is characterized in that, also comprise damping device, described damping device comprises: piston (31), buffering spool (35), spring (36), gland (38), DU overlaps (37) and modulating valve (30), described piston (31) places the end of described tooth bar (6) to be located in the cylinder barrel (2), spring (36) is connected in the piston (31) successively with buffering spool (35), Du cover (37) is sheathed on the outside of buffering spool (35), and gland (38) passes buffering spool (35) and is fixed on the piston (31); Modulating valve (30) is located in the cylinder bottom (3), is provided with in the cylinder bottom (3) to hold the corresponding groove (34) of buffering spool (35).
7. flange-type double rack swing cylinder according to claim 6, it is characterized in that, described piston (31) contacts by seal ring (41) and copper ring (42) with described cylinder barrel (2), and described cylinder bottom (3) is provided with back-up ring (32) and O type circle (33) with the surface of contact of described cylinder barrel (2).
8. flange-type double rack swing cylinder according to claim 6 is characterized in that, described gland (38) is bolted on the described piston (31).
9. flange-type double rack swing cylinder according to claim 1 is characterized in that, described cylinder bottom (3) is welded on the end face of described cylinder barrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320215899 CN203223436U (en) | 2013-04-25 | 2013-04-25 | Flange type double-rack swinging cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320215899 CN203223436U (en) | 2013-04-25 | 2013-04-25 | Flange type double-rack swinging cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223436U true CN203223436U (en) | 2013-10-02 |
Family
ID=49250440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320215899 Expired - Lifetime CN203223436U (en) | 2013-04-25 | 2013-04-25 | Flange type double-rack swinging cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223436U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454752A (en) * | 2014-10-20 | 2015-03-25 | 段黎明 | Stroke control universal strain angle hydraulic oil cylinder |
| CN104989695A (en) * | 2015-07-06 | 2015-10-21 | 王文韬 | High-precision rotary cylinder |
| CN108674116A (en) * | 2018-05-08 | 2018-10-19 | 山河智能特种装备有限公司 | Two-chamber floating cylinder and its simple pendulum arm suspension of application and suspension adjusting method |
| CN108674111A (en) * | 2018-03-23 | 2018-10-19 | 中国北方车辆研究所 | A kind of pinion and-rack rocker arm suspension |
| CN109578362A (en) * | 2018-12-27 | 2019-04-05 | 山东南海气囊工程有限公司 | It is a kind of without sealed gear-and-rack swing hydraulic cylinder |
| CN108674116B (en) * | 2018-05-08 | 2024-05-17 | 山河智能特种装备有限公司 | Double-cavity floating cylinder, single swing arm suspension system applied by same and suspension adjusting method |
-
2013
- 2013-04-25 CN CN 201320215899 patent/CN203223436U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454752A (en) * | 2014-10-20 | 2015-03-25 | 段黎明 | Stroke control universal strain angle hydraulic oil cylinder |
| CN104989695A (en) * | 2015-07-06 | 2015-10-21 | 王文韬 | High-precision rotary cylinder |
| CN108674111A (en) * | 2018-03-23 | 2018-10-19 | 中国北方车辆研究所 | A kind of pinion and-rack rocker arm suspension |
| CN108674111B (en) * | 2018-03-23 | 2022-03-18 | 中国北方车辆研究所 | Rack and pinion formula rocking arm suspension |
| CN108674116A (en) * | 2018-05-08 | 2018-10-19 | 山河智能特种装备有限公司 | Two-chamber floating cylinder and its simple pendulum arm suspension of application and suspension adjusting method |
| CN108674116B (en) * | 2018-05-08 | 2024-05-17 | 山河智能特种装备有限公司 | Double-cavity floating cylinder, single swing arm suspension system applied by same and suspension adjusting method |
| CN109578362A (en) * | 2018-12-27 | 2019-04-05 | 山东南海气囊工程有限公司 | It is a kind of without sealed gear-and-rack swing hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |
|
| CX01 | Expiry of patent term |