CN201982400U - Total distance fuel-injection tension cylinder - Google Patents
Total distance fuel-injection tension cylinder Download PDFInfo
- Publication number
- CN201982400U CN201982400U CN2010206905279U CN201020690527U CN201982400U CN 201982400 U CN201982400 U CN 201982400U CN 2010206905279 U CN2010206905279 U CN 2010206905279U CN 201020690527 U CN201020690527 U CN 201020690527U CN 201982400 U CN201982400 U CN 201982400U
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- cylinder
- oil
- piston
- total travel
- cylinder seat
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- Expired - Fee Related
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Abstract
The utility model relates to a part of a crawler tractor, in particular to a total distance fuel-injection tension cylinder, which essentially resolves problems existing in the prior art that a protection sleeve and a piston nut are in split type and prone to fall after the tension cylinder is used for a long period; and because the tension distance of the piston is short, when the fuel-injection tension distance is not enough, a lead screw is needed to perform adjustment, and because corrosion is easy to happen between the lead screw and the adjustment nut, time and labor are wasted during adjustment. The tension cylinder comprises a casing (1) and a cylinder seat (2) arranged inside the casing and is characterized in that the interior of cylinder seat (2) is movably connected with a piston protection sleeve welding assembly (3), a cylinder seat arranged on one end of the piston protection sleeve welding assembly (3) is provided with a fuel-injection hole (4) communicated with a fuel-injection valve assembly, the other end of the piston protection sleeve welding assembly is provided with a thrust ring (5) and a link fork (6), and a tension rod (7) is connected between the thrust ring and the link fork.
Description
Technical field
The utility model relates to a kind of component of crawler tractor, especially relates to a kind of total travel oil-filling type tensioning hydro-cylinder.
Background technique
The walking Transmitted chains of crawler tractor will guarantee certain tension force, to guarantee transmission efficiency.Tractor through one section operation after, its walking chain pitch elongation, tension force reduces, and guarantee the tension force of chain by tensioning hydro-cylinder is carried out topping up.Chinese patent discloses a kind of improved combine-harvester half-track traveling gear, and (notice of authorization number: CN 201280163Y), it comprises the drive hub that is connected with live axle, and bogie frame; The bogie frame inboard is hinged on the described reaper propons bottom by bearing pin, the outside of bogie frame is provided with auxiliary support apparatus, the outside of drive hub is provided with dome, auxiliary support apparatus is supported on the dome, auxiliary support apparatus comprises the supporting frame that is fixed on the described bogie frame, the upper end of supporting frame is equipped with the aiding support idle pulley, supporting frame comprises the supporting base of fixedlying connected with described bogie frame, be hinged with disc on the supporting base, the upper end of disc is separately installed with the aiding support idle pulley, the adjusting pad is installed between supporting base and the bogie frame, and the attachment hole of supporting base and bogie frame is a slotted hole.But the tensioning hydro-cylinder in this crawler unit, its protecting cover and piston unt are split-type structurals, after the long-term use of tensioning hydro-cylinder, come off easily, and because the length of piston is shorter, therefore when the oiling stroke of tension is not enough, need regulate by leading screw, inconvenient.
The model utility content
The utility model provides a kind of total travel oil-filling type tensioning hydro-cylinder, it mainly is that the protecting cover and the piston unt of solution existing in prior technology tensioning hydro-cylinder are split-type structurals, after the long-term use of tensioning hydro-cylinder, come off easily, and because the stroke of tension of piston is shorter, therefore when the oiling stroke of tension is not enough, need regulate, and easy-to-rust between leading screw and the adjustment nut technical problem that adjustment is wasted time and energy etc. by leading screw.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Total travel oil-filling type tensioning hydro-cylinder of the present utility model, comprise housing, be provided with the cylinder seat in the housing, be connected with piston sheath seam assembly in the described cylinder seat, have oil hole on the cylinder seat of piston sheath seam assembly one end, oil hole is communicated with the fuel feeding valve assembly, and the piston sheath seam assembly the other end is provided with thrust ring and clevis, is connected with nutted rod between thrust ring and the clevis.Piston sheath seam assembly is made integral body with piston and sheath, can prevent that tensioning hydro-cylinder from coming off.After the fuel feeding valve assembly oiling of right-hand member, fluid can promote piston sheath seam assembly and move to left end, and therefore nutted rod also is moved to the left, thereby forms tensioning.
As preferably, the shift motion of the relative cylinder seat of described piston sheath seam assembly is between 85-160mm.Strengthened stroke of tension, total travel realizes the oiling tensioning when making work, and it is comparatively laborsaving, convenient that tensioning is regulated.
As preferably, described fuel feeding valve assembly includes the oiling valve body, is connected with lubricating cup on the oiling valve body, and the oil outlet place of lubricating cup is provided with steel ball, and steel ball is connected with the fuel feeding valve spring.The fuel feeding valve assembly is an one-way valve, and steel ball and fuel feeding valve spring guarantee that fluid can not reflux.
As preferably, be connected with safety valve complement on the described cylinder seat, safety valve complement is communicated with oil hole by oil circuit.When fluid injects more for a long time, when oil pressure surpassed the safety valve rated pressure, fluid can back down safety valve, and unnecessary fluid just can be flowed out by safety valve.
As preferably, be provided with damping spring between described thrust ring and the clevis, make nutted rod to move reposefully.
As preferably, be connected with leading screw in the described piston sheath seam assembly, leading screw is connected with the adjustment nut.If run into stroke of tension during use more in short-term, can turn the adjustment nut, leading screw moves laterally in plug sheath seam assembly, thereby extends whole stroke of tension.
As preferably, described cylinder seat, piston sheath seam assembly, nutted rod outer surface are provided with zinc coat, can play antirust effect.
As preferably, be provided with co-axial seals between described cylinder seat and the piston sheath seam assembly, prevent that dust etc. from entering between cylinder seat and the piston sheath seam assembly, avoided accelerated wear test.
As preferably, have port on the described piston sheath seam assembly.
Therefore, the utility model is made one with the protecting cover and the piston unt of tensioning hydro-cylinder, after the long-term use of tensioning hydro-cylinder, can not come off yet, and because the length of piston sheath seam assembly is longer, total travel realizes the oiling tensioning when therefore working, and need not to regulate by leading screw, it is comparatively convenient, simple and reasonable for structure to operate.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is A-A cross-sectional view of Fig. 1.
Component, position and numbering among the figure: housing 1, cylinder seat 2, piston sheath seam assembly 3, oil hole 4, thrust ring 5, clevis 6, nutted rod 7, oiling valve body 8, lubricating cup 9, steel ball 10, fuel feeding valve spring 11, safety valve complement 12, leading screw 13, adjustment nut 14, co-axial seals 15, damping spring 16, port 17.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the total travel oil-filling type tensioning hydro-cylinder that this is routine, as Fig. 1, a housing 1 is arranged, be provided with cylinder seat 2 in the housing, be connected with piston sheath seam assembly 3 in the cylinder seat 2, have port 17 on the piston sheath seam assembly, be provided with co-axial seals 15 between cylinder seat and the piston sheath seam assembly, the shift motion of cylinder seat 2 is between 85-160mm relatively.Have oil hole 4 on the cylinder seat of piston sheath seam assembly right-hand member, oil hole is communicated with fuel feeding valve assembly and safety valve complement 12, wherein, as Fig. 2, the fuel feeding valve assembly includes oiling valve body 8, be connected with lubricating cup 9 on the oiling valve body, the oil outlet place of lubricating cup is provided with steel ball 10, and steel ball is connected with fuel feeding valve spring 11.The left end of piston sheath seam assembly is provided with adjusts nut 14, adjusts nut and is connected with leading screw 13, and leading screw is movably connected in piston sheath seam assembly 3 inside.The left end of adjusting nut is provided with thrust ring 5 and clevis 6, is connected with nutted rod 7 and damping spring 16 between thrust ring and the clevis.Cylinder seat, piston sheath seam assembly, nutted rod outer surface all are provided with zinc coat.
During use, inject fluid at fuel feeding valve assembly place, fluid promotes piston sheath seam assembly 3 and moves to left end, and nutted rod 7 also moves to left end simultaneously, gets final product up to tensioning.
The above only is a specific embodiment of the utility model, but structure characteristic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and variation of being done or modification all are encompassed among the claim of the present utility model.
Claims (9)
1. total travel oil-filling type tensioning hydro-cylinder, comprise housing (1), be provided with cylinder seat (2) in the housing, it is characterized in that being connected with in the described cylinder seat (2) piston sheath seam assembly (3), have oil hole (4) on the cylinder seat of piston sheath seam assembly one end, oil hole is communicated with the fuel feeding valve assembly, and the piston sheath seam assembly the other end is provided with thrust ring (5) and clevis (6), is connected with nutted rod (7) between thrust ring and the clevis.
2. total travel oil-filling type tensioning hydro-cylinder according to claim 1, the shift motion that it is characterized in that the relative cylinder seat (2) of described piston sheath seam assembly (3) is between 85-160mm.
3. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2, it is characterized in that described fuel feeding valve assembly includes oiling valve body (8), be connected with lubricating cup (9) on the oiling valve body, the oil outlet place of lubricating cup is provided with steel ball (10), and steel ball is connected with fuel feeding valve spring (11).
4. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2 is characterized in that being connected with safety valve complement (12) on the described cylinder seat (2), and safety valve complement is communicated with oil hole (4) by oil circuit.
5. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2 is characterized in that being provided with damping spring (16) between described thrust ring (5) and the clevis (6).
6. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2 is characterized in that being connected with in the described piston sheath seam assembly (3) leading screw (13), and leading screw is connected with adjusts nut (14).
7. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2 is characterized in that described cylinder seat (2), piston sheath seam assembly (3), nutted rod (7) outer surface are provided with zinc coat.
8. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2 is characterized in that being provided with co-axial seals (15) between described cylinder seat (2) and the piston sheath seam assembly (3).
9. total travel oil-filling type tensioning hydro-cylinder according to claim 1 and 2 is characterized in that having on the described piston sheath seam assembly (3) port (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206905279U CN201982400U (en) | 2010-12-30 | 2010-12-30 | Total distance fuel-injection tension cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206905279U CN201982400U (en) | 2010-12-30 | 2010-12-30 | Total distance fuel-injection tension cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982400U true CN201982400U (en) | 2011-09-21 |
Family
ID=44609862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206905279U Expired - Fee Related CN201982400U (en) | 2010-12-30 | 2010-12-30 | Total distance fuel-injection tension cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588724A (en) * | 2012-03-09 | 2012-07-18 | 三一重机有限公司 | Pressure-controllable oiling device for tension device |
| CN104477239A (en) * | 2014-12-26 | 2015-04-01 | 中国北方车辆研究所 | Steering link stroke protection device of tracked vehicle |
-
2010
- 2010-12-30 CN CN2010206905279U patent/CN201982400U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588724A (en) * | 2012-03-09 | 2012-07-18 | 三一重机有限公司 | Pressure-controllable oiling device for tension device |
| CN102588724B (en) * | 2012-03-09 | 2014-10-01 | 三一重机有限公司 | Pressure-controllable oiling device for tension device |
| CN104477239A (en) * | 2014-12-26 | 2015-04-01 | 中国北方车辆研究所 | Steering link stroke protection device of tracked vehicle |
| CN104477239B (en) * | 2014-12-26 | 2017-01-11 | 中国北方车辆研究所 | Steering link stroke protection device of tracked vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang Province, the new 311228 Bay Street Xiaoshan District No. 1 Linglu Sheng Patentee after: HANGZHOU GEGAO MACHINE CO., LTD. Address before: Hangzhou City, Zhejiang Province, the new 311228 Bay Street Xiaoshan District No. 1 Linglu Sheng Patentee before: Hangzhou Gegao Machine Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |