CN106672101A - Compact tensioning device - Google Patents
Compact tensioning device Download PDFInfo
- Publication number
- CN106672101A CN106672101A CN201710065272.3A CN201710065272A CN106672101A CN 106672101 A CN106672101 A CN 106672101A CN 201710065272 A CN201710065272 A CN 201710065272A CN 106672101 A CN106672101 A CN 106672101A
- Authority
- CN
- China
- Prior art keywords
- spring
- cylinder body
- section
- guide holder
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 3
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/30—Track-tensioning means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention relates to a compact tensioning device. The compact tensioning device includes a cylinder (2), a spring seat (3) and a guide seat (5) which are successively arranged from left to right; a piston (1) is arranged in the cylinder (2); a pull rod (4), a big spring (6) and a small spring (7) are arranged between the spring seat (3) and the guide seat (5); two ends of the big spring (6) and the small spring (7) sleeve the spring seat (3) and the guide seat (5); the spiral directions of the big spring (6) and the small spring (7) are opposite; an oil injection valve (14) and an oil discharging valve (15) are arranged outside the cylinder (2); the oil injection valve (14) is positioned on one side of the oil discharging valve (15); and the oil injection valve (14) and the oil discharging valve (15) communicate with the inner part of the cylinder (2). The compact tensioning device is compact in structure, is small in size, can reduce abrasion among various parts, and can prolong the service life of products.
Description
Technical field
The present invention relates to a kind of compact tensioner, is mainly used in the engineering machinery such as excavator, belong to engineering machine
Tool technical field.
Background technology
Due to construction machinery industry fast development at home in recent years, country carries forward vigorously construction machinery production industry
Development, simultaneously because China's construction machinery production industry level is more external comparing or relatively backward, Foreign Engineering Machinery giant jail
The handle in jail holds key technology, the development of the domestic manufacture level of containment.With the increase of engineering machinery demand at home, supply
Contradiction is needed progressively to increase.
Wherein excavator has the advantages of pull strength is big, climbing capacity strong, and radius of turn is little, therefore in engineering construction and ore deposit
It is widely used in the exploitation of mountain, and the tensioner in excavator serves extremely important effect.Existing excavator
Tensioner design it is unreasonable, its is loosely organized, occupies that volume is larger, and each part easily weares and teares, and greatly reduces product
Service life.
The content of the invention
The technical problem to be solved is to provide a kind of compact tensioner for above-mentioned prior art, its knot
Structure is compact, occupies small volume, substantially reduces the abrasion between each part, so as to extend the service life of product.
The present invention the adopted technical scheme that solves the above problems is：A kind of compact tensioner, it is included from a left side extremely
Cylinder body, spring base and guide holder that the right side is sequentially arranged, the spring base fixed cover is provided with loaded on cylinder body right side in the cylinder body
Piston, is provided with pull bar, big spring and little spring, the big spring and little spring two ends point between the spring base and guide holder
It is not set on spring base and guide holder, the little spring is located inside big spring, the big spring and little spring are oppositely oriented,
The pull bar is threaded onto spring base and guide holder center, and the cylinder body outside is provided with fuel feeding valve and draining valve, the fuel feeding valve
Positioned at draining valve side, the fuel feeding valve and draining valve are connected with cylinder interior；
The piston includes the first cylindrical section and the second cylindrical section, offers the first annular groove on first cylindrical section, described the
Back-up ring is placed in one annular groove, sealing ring and support ring, the sealing ring and support ring position are set with first cylindrical section
Between back-up ring and the second cylindrical section, the annular groove of left and right twice second is offered on second cylindrical section, in second annular groove
It is provided with wear ring；
The cylinder body outside is provided with base plate, and clamp is provided with the base plate, and the upper clamp is by fastening bolt and cylinder
Body phase connects, and two clamp bar slots of left and right are offered on the upper clamp, and the fuel feeding valve and draining valve are placed in respectively clamp
In two clamp bar slots of left and right；
The pull bar includes left section, way station stage and right section, is disposed with First inside the spring base from left to right
Rank hole, second step hole and central through hole, the first step hole is engaged with outer wall of cylinder block face, and the second step hole is with
Between step section be engaged, described left section offsets with piston, and the right section of right-hand member is connected by nut with guide holder, the spring
Seat offers anti-rotation pin-and-hole at second step hole, and stop pin is provided with the anti-rotation pin-and-hole, and the way station stage is along water
Square to draw-in groove is offered, the stop pin lower end is placed in draw-in groove.
The right section of outer sheath is equipped with guide pin bushing, and the guide pin bushing is fixedly connected on guide holder.
Described left section of outside wall surface is the angled conical surface.
The nut outside is provided with jam plate, and stop nut, the stop nut and the right section of right side are provided with the jam plate
End is connected, and the stop nut deviates nut center.
The cylinder body left side is provided with connecting rod, and the connecting rod left end is provided with guiding wheel seat.
Compared with prior art, it is an advantage of the current invention that：
1st, the present invention passes through the little spring for increasing contrary rotation direction inside big spring, it is to avoid unrestricted increase big spring
Line footpath, reduces Product processing difficulty and production cost；
2nd, the present invention increased draining valve on cylinder body, so as to increased the effect of aerofluxuss, product is reduced in use
Friction between piston and cylinder body, so as to extend the service life of product；
3rd, the present invention can be easy to operate and extend fuel feeding valve by oil extraction valve regulation crawler belt tighting degree, without the need for adjusting fuel feeding valve
Service life；
4th, safeguard structure is provided with draining valve of the invention and fuel feeding valve, can effectively prevents draining valve and fuel feeding valve from using
During produce damage；
5th, invention increases the anti-rotation design of pull bar, it is ensured that pull bar is kept away in use with cylinder body without relative circular movement
Exempt from the fatigue wear of pull bar, extend the service life of pull bar；
6th, the present invention arrange in left and right twice annular groove, chute wear ring by opening up on piston, so as to reduce piston only
With the contact area of cylinder body, abrasion therebetween is reduced, so as to improve the service life of cylinder body and piston；
7th, the present invention pull bar right-hand member increased nut anti-looseness design, can effectively prevent in use nut from pull bar
Release, so as to avoid the generation of security incident；
8th, left section of outer wall of pull bar of the invention is designed using the conical surface, substantially increases the intensity of pull bar and piston contact section；
9th, the present invention is by the way of cylinder body and guiding wheel support linkage, by increasing capacitance it is possible to increase engineering machinery chassis stability and walking
Power.
Description of the drawings
Fig. 1 is a kind of structural representation of compact tensioner of the invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the structural representation of piston in Fig. 1.
Fig. 4 is the schematic cross-section in pull bar way station stage in Fig. 1.
Fig. 5 is fuel feeding valve in Fig. 1 and the top view at draining valve.
Fig. 6 is the A-A sectional views of Fig. 5.
Wherein：
Piston 1
First cylindrical section 1.1
Second cylindrical section 1.2
First annular groove 1.3
Back-up ring 1.4
Sealing ring 1.5
Support ring 1.6
Second annular groove 1.7
Wear ring 1.8
Cylinder body 2
Spring base 3
First step hole 3.1
Second step hole 3.2
Central through hole 3.3
Pull bar 4
Left section 4.1
The way station stage 4.2
Right section 4.3
Draw-in groove 4.4
Guide holder 5
Big spring 6
Little spring 7
Nut 8
Jam plate 9
Check bolt 10
Anti-rotation pin-and-hole 11
Stop pin 12
Guide pin bushing 13
Fuel feeding valve 14
Draining valve 15
Base plate 16
Upper clamp 17
Fastening bolt 18
Draw-in groove 19
Connecting rod 20
Guiding wheel support 21.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 1 ~ Fig. 6, a kind of compact tensioner in the present embodiment, it includes what is be sequentially arranged from left to right
Cylinder body 2, spring base 3 and guide holder 5, the fixed cover of the spring base 3 is provided with piston 1 loaded on the right side of cylinder body 2 in the cylinder body 2,
Pull bar 4, big spring 6 and little spring 7, the big spring 6 and the two ends of little spring 7 are provided between the spring base 3 and guide holder 5
It is set with spring base 3 and guide holder 5, the little spring 7 is located inside big spring 6, the big spring 6 and little spring 7
Oppositely oriented, the pull bar 4 is threaded onto spring base 5 and the center of guide holder 6, and the outside of the cylinder body 2 is provided with fuel feeding valve 14 and row
Fuel tap 15, the fuel feeding valve 14 is located at the side of draining valve 15, and the fuel feeding valve 14 and draining valve 15 are connected with the inside of cylinder body 2
It is logical；
The piston 1 includes the first cylindrical section 1.1 and the second cylindrical section 1.2, and on first cylindrical section 1.1 the first ring is offered
Back-up ring 1.4 is placed in groove 1.3, first annular groove 1.3, sealing ring 1.5 is set with first cylindrical section 1.1 and is supported
Ring 1.6, the sealing ring 1.5 and support ring 1.6 are located between the cylindrical section 1.2 of back-up ring 1.4 and second, second cylindrical section
Offer on 1.2 in the second annular groove of left and right twice 1.7, second annular groove 1.7 and be provided with wear ring 1.8；
The outside of the cylinder body 2 is provided with base plate 16, and clamp 17 is provided with the base plate 16, and the upper clamp 17 is by fastening
Bolt 18 is connected with cylinder body 2, and two clamp bar slots 19 of left and right, the fuel feeding valve 14 and draining valve 15 are offered on the upper clamp 17
It is placed in respectively in the clamp bar slot 19 of left and right two of clamp 17；
The pull bar 4 includes left section 4.1, way station stage 4.2 and right section 4.3, sets successively from left to right inside the spring base 3
It is equipped with first step hole 3.1, second step hole 3.2 and central through hole 3.3, the first step hole 3.1 and the outside wall surface phase of cylinder body 2
Coordinate, the second step hole 3.2 is engaged with the way station stage 4.2, and described left section 4.1 offsets with piston 1, described right section
4.3 right-hand members are connected by nut 8 with guide holder 5, and the spring base 3 offers anti-rotation pin-and-hole 11 at second step hole 3.2,
Stop pin 12 is provided with the anti-rotation pin-and-hole 11, the way station stage 4.2 offers in the horizontal direction draw-in groove 4.4, described
The lower end of stop pin 12 is placed in draw-in groove 4.4；
Right section of 4.3 outer sheaths are equipped with guide pin bushing 13, and the guide pin bushing 13 is fixedly connected on guide holder 5；
Described left section 4.1 of outside wall surface is the conical surface at an angle；
The outside of the nut 8 is provided with jam plate 9, is provided with stop nut 10 on the jam plate 9, the stop nut 10 with right section
4.3 right-hand members are connected, and the stop nut 10 deviates the center of nut 8；
The left side of the cylinder body 2 is provided with connecting rod 20, and the left end of the connecting rod 20 is provided with guiding wheel seat 21.
In addition to the implementation, present invention additionally comprises there is other embodiment, all employing equivalents or equivalence replacement
The technical scheme that mode is formed, all should fall within the scope of the hereto appended claims.
Claims (5)
1. a kind of compact tensioner, it is characterised in that：It includes the cylinder body being sequentially arranged from left to right（2）, spring base（3）
And guide holder（5）, the spring base（3）Fixed cover is loaded on cylinder body（2）Right side, the cylinder body（2）Inside it is provided with piston（1）, institute
State spring base（3）With guide holder（5）Between be provided with pull bar（4）, big spring（6）And little spring（7）, the big spring（6）With
Little spring（7）Two ends are set with spring base（3）And guide holder（5）On, the little spring（7）Positioned at big spring（6）Inside,
The big spring（6）And little spring（7）It is oppositely oriented, the pull bar（4）It is threaded onto spring base（5）And guide holder（6）Center, institute
State cylinder body（2）Outside is provided with fuel feeding valve（14）And draining valve（15）, the fuel feeding valve（14）Positioned at draining valve（15）Side, institute
State fuel feeding valve（14）And draining valve（15）And cylinder body（2）Inside is connected；
The piston（1）Including the first cylindrical section（1.1）With the second cylindrical section（1.2）, first cylindrical section（1.1）On open up
There is the first annular groove（1.3）, first annular groove（1.3）Inside it is placed in back-up ring（1.4）, first cylindrical section（1.1）Upper suit
There is sealing ring（1.5）And support ring（1.6）, the sealing ring（1.5）And support ring（1.6）Positioned at back-up ring（1.4）With the second circle
Shell of column（1.2）Between, second cylindrical section（1.2）On offer the annular groove of left and right twice second（1.7）, second annular groove
（1.7）Inside it is provided with wear ring（1.8）；
The cylinder body（2）Outside is provided with base plate（16）, the base plate（16）On be provided with clamp（17）, the upper clamp
（17）By fastening bolt（18）With cylinder body（2）It is connected, the upper clamp（17）On offer left and right two clamp bar slots（19）, institute
State fuel feeding valve（14）And draining valve（15）Clamp is placed in respectively（17）The clamp bar slot of left and right two（19）It is interior；
The pull bar（4）Including left section（4.1）, the way station stage（4.2）With right section（4.3）, the spring base（3）It is internal certainly left
First step hole is disposed with to the right side（3.1）, second step hole（3.2）And central through hole（3.3）, the first step hole
（3.1）With cylinder body（2）Outside wall surface is engaged, the second step hole（3.2）With the way station stage（4.2）It is engaged, the left side
Section（4.1）With piston（1）Offset, described right section（4.3）Right-hand member passes through nut（8）With guide holder（5）It is connected, the spring base
（3）In second step hole（3.2）Place offers anti-rotation pin-and-hole（11）, the anti-rotation pin-and-hole（11）Inside it is provided with stop pin（12）,
The way station stage（4.2）Draw-in groove is offered in the horizontal direction（4.4）, the stop pin（12）Lower end is placed in draw-in groove
（4.4）It is interior.
2. a kind of compact tensioner according to claim 1, it is characterised in that：Described right section（4.3）Outside suit
There is guide pin bushing（13）, the guide pin bushing（13）It is fixedly connected on guide holder（5）On.
3. a kind of compact tensioner according to claim 1, it is characterised in that：Described left section（4.1）Outside wall surface
For the angled conical surface.
4. a kind of compact tensioner according to claim 1, it is characterised in that：The nut（8）Outside is provided with
Jam plate（9）, the jam plate（9）On be provided with stop nut（10）, the stop nut（10）With right section（4.3）Right-hand member is connected
Connect, the stop nut（10）Deviate nut（8）Center.
5. a kind of compact tensioner according to claim 1, it is characterised in that：The cylinder body（2）Left side is provided with
Connecting rod（20）, the connecting rod（20）Left end is provided with guiding wheel seat（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065272.3A CN106672101A (en) | 2017-02-06 | 2017-02-06 | Compact tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065272.3A CN106672101A (en) | 2017-02-06 | 2017-02-06 | Compact tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106672101A true CN106672101A (en) | 2017-05-17 |
Family
ID=58859618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710065272.3A Pending CN106672101A (en) | 2017-02-06 | 2017-02-06 | Compact tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590958A (en) * | 2020-12-18 | 2021-04-02 | 山推工程机械股份有限公司 | Maintainable tensioning device for engineering machinery crawler belt |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035680A (en) * | 1989-07-05 | 1991-07-30 | Nhk Spring Co., Ltd. | Belt or chain tensioner for power transmitting system |
| US20030141641A1 (en) * | 2002-01-28 | 2003-07-31 | Barnes Group Inc., A Delaware Corporation | Compression spring rod |
| CN102991592A (en) * | 2012-12-05 | 2013-03-27 | 力帆实业(集团)股份有限公司 | Automobile spare tire guy cable driving gear anti-rotating device |
| CN103244327A (en) * | 2012-02-03 | 2013-08-14 | 株式会社电装 | Supply pump |
| CN203714028U (en) * | 2014-03-19 | 2014-07-16 | 王海芳 | Track tensioning device |
| CN204197094U (en) * | 2014-08-05 | 2015-03-11 | 无锡必克液压股份有限公司 | Caterpillar belt tightening device hermetically-sealed construction |
| CN104742994A (en) * | 2015-03-31 | 2015-07-01 | 三一重机有限公司 | Variable stiffness tension device and working mode thereof |
| CN204472942U (en) * | 2014-12-29 | 2015-07-15 | 江阴市长龄机械制造有限公司 | Track takeup |
| CN204628146U (en) * | 2015-02-07 | 2015-09-09 | 东莞市嘉刚机电科技发展有限公司 | A kind of improved type shoring |
| CN205836997U (en) * | 2016-07-21 | 2016-12-28 | 山东德立信液压有限公司 | Universal track takeup |
| CN206528541U (en) * | 2017-02-06 | 2017-09-29 | 江阴市长龄机械制造有限公司 | Compact tensioner |
-
2017
- 2017-02-06 CN CN201710065272.3A patent/CN106672101A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035680A (en) * | 1989-07-05 | 1991-07-30 | Nhk Spring Co., Ltd. | Belt or chain tensioner for power transmitting system |
| US20030141641A1 (en) * | 2002-01-28 | 2003-07-31 | Barnes Group Inc., A Delaware Corporation | Compression spring rod |
| CN103244327A (en) * | 2012-02-03 | 2013-08-14 | 株式会社电装 | Supply pump |
| CN102991592A (en) * | 2012-12-05 | 2013-03-27 | 力帆实业(集团)股份有限公司 | Automobile spare tire guy cable driving gear anti-rotating device |
| CN203714028U (en) * | 2014-03-19 | 2014-07-16 | 王海芳 | Track tensioning device |
| CN204197094U (en) * | 2014-08-05 | 2015-03-11 | 无锡必克液压股份有限公司 | Caterpillar belt tightening device hermetically-sealed construction |
| CN204472942U (en) * | 2014-12-29 | 2015-07-15 | 江阴市长龄机械制造有限公司 | Track takeup |
| CN204628146U (en) * | 2015-02-07 | 2015-09-09 | 东莞市嘉刚机电科技发展有限公司 | A kind of improved type shoring |
| CN104742994A (en) * | 2015-03-31 | 2015-07-01 | 三一重机有限公司 | Variable stiffness tension device and working mode thereof |
| CN205836997U (en) * | 2016-07-21 | 2016-12-28 | 山东德立信液压有限公司 | Universal track takeup |
| CN206528541U (en) * | 2017-02-06 | 2017-09-29 | 江阴市长龄机械制造有限公司 | Compact tensioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590958A (en) * | 2020-12-18 | 2021-04-02 | 山推工程机械股份有限公司 | Maintainable tensioning device for engineering machinery crawler belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Applicant after: JIANGSU CHANGLING HYDRAULIC Co.,Ltd. Address before: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Applicant before: JIANGYIN CHANGLING MACHINERY MANUFACTURING Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |