CN106945737A - Caterpillar system automatic tension device - Google Patents

Caterpillar system automatic tension device Download PDF

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Publication number
CN106945737A
CN106945737A CN201710155229.6A CN201710155229A CN106945737A CN 106945737 A CN106945737 A CN 106945737A CN 201710155229 A CN201710155229 A CN 201710155229A CN 106945737 A CN106945737 A CN 106945737A
Authority
CN
China
Prior art keywords
cylinder barrel
caterpillar
cylinder
oil circuit
automatic tension
Prior art date
Application number
CN201710155229.6A
Other languages
Chinese (zh)
Inventor
孙中林
孟庆锋
仇维蓉
吴洋
Original Assignee
国机重工(常州)挖掘机有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 国机重工(常州)挖掘机有限公司 filed Critical 国机重工(常州)挖掘机有限公司
Priority to CN201710155229.6A priority Critical patent/CN106945737A/en
Publication of CN106945737A publication Critical patent/CN106945737A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D55/00Endless track vehicles
    • B62D55/08Endless track units; Parts thereof
    • B62D55/30Track-tensioning means

Abstract

The present invention relates to crawler of excavator swelling device technical field, more particularly to a kind of caterpillar system automatic tension device, the caterpillar system automatic tension device of the present invention, it is made up of turgor cylinder and tensioner spring, by the hydraulic jack for being designed to possess oil inlet and outlet by internal turgor cylinder, be connected with the hydraulic system of whole machine, in driver's cabin settings button come control turgor cylinder stretch, the length of human pilot demand is reached, the elastic of caterpillar system is realized.

Description

Caterpillar system automatic tension device

Technical field

Filled the present invention relates to crawler of excavator swelling device technical field, more particularly to a kind of caterpillar system automatic tension Put.

Background technology

Traditional Caterpillar belt tightening device mainly adjusts shoe by way of internally turgor cylinder is filled or discharges lubricating grease Band tensioning is loosened.Need to inject lubricating grease by manual or automatic filing provision during tensioner, required time is long, yellow in addition Oil nozzle is easily damaged by foreign object collision rift;Needed during loosening after grease nipple is removed, inwardly promote priming wheel to realize, Efficiency is low, and due to removing grease nipple in high pressure, there is certain threat, such as Patent No. to personal safety Exist in 200920161776.6 utility model patent, or the utility model patent of Patent No. 201420587544.8 Above-mentioned technical problem.

The content of the invention

The technical problem to be solved in the present invention is:In order to solve Caterpillar belt tightening device in the prior art grease nipple easily by Damaged to foreign object collision rift, and grease nipple is removed in high pressure, the technical problem that there is certain threat to personal safety, this Invention provides a kind of caterpillar system automatic tension device.

The technical solution adopted for the present invention to solve the technical problems is:A kind of caterpillar system automatic tension device, including Directive wheel connection in connector, connecting shaft, spring, cylinder barrel and piston and piston rod, the connector and caterpillar system, institute The one end for stating connecting shaft is fixedly connected with connector, and the other end of connecting shaft is fixedly connected with the bottom of cylinder barrel, and piston is slided and set Put in cylinder barrel, one end of the piston rod is fixedly connected with piston, the other end of piston rod stretches out the cylinder mouthful of cylinder barrel, the bullet Spring is sleeved on cylinder barrel and positioned between connector and cylinder barrel, the piston will be divided into rodless cavity and rod chamber in cylinder barrel, described Separate the first oil circuit and the second oil circuit is provided with piston rod, one end of first oil circuit is connected with rodless cavity, The other end of first oil circuit and the ft connection of cylinder barrel, one end of second oil circuit are connected with rod chamber, the second oil circuit The ft connection of the other end and cylinder barrel.Caterpillar system automatic tension device of the present invention, by entering to the first oil circuit and the second oil circuit Oily or fuel-displaced, to control piston, with respect to the motion of cylinder barrel, (other end of piston rod is integrally fixed on chassis, therefore piston position is It is fixed, cylinder barrel motion), so as to realize the advance and retrogressing that cylinder barrel is automatically controlled using hydraulic system.

In order to ensure good dust-proof and sealing function, the cylinder mouth of the cylinder barrel is additionally provided with cylinder cap, piston rod it is another Cylinder cap is stretched out at end, and sealing ring and dust ring are provided between piston rod and cylinder cap.

In order to ensure good dust-proof and sealing function, sealing ring is provided between the piston and inner wall of cylinder and dust-proof Circle.

In order to prevent being rotated between connecting shaft and cylinder barrel, caterpillar system automatic tension device also includes alignment pin, described fixed Position pin is in cylinder barrel wall and insertion connecting shaft.

In order to avoid during spring-compressed radially slightly dislocation, deformation and with the interference of cylinder barrel bottom, collision, and to spring Play certain guide effect, the cylinder barrel close to bottom outer ring in cone, and cone external diameter from cylinder barrel to cylinder mouthful Gradually it is incremented by.

The beneficial effects of the invention are as follows caterpillar system automatic tension device of the invention, by turgor cylinder and tensioner spring Composition, by the hydraulic jack for being designed to possess oil inlet and outlet by internal turgor cylinder, is connected with the hydraulic system of whole machine, In driver's cabin settings button come control turgor cylinder stretch, reach the length of human pilot demand, realize caterpillar system It is elastic.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural representation of caterpillar system automatic tension device optimum embodiment of the present invention.

Fig. 2 is the use state figure of caterpillar system automatic tension device of the present invention.

In figure:1st, connector, 2, connecting shaft, 3, spring, 4, cylinder barrel, 5, piston, 6, piston rod, the 61, first oil circuit, 62, Second oil circuit, 7, cylinder cap, 8, alignment pin, 9, directive wheel.

Embodiment

In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.

As illustrated in fig. 1 and 2, it is optimum embodiment of the present invention, a kind of caterpillar system automatic tension device, including connector 1, Directive wheel 9 in connecting shaft 2, spring 3, cylinder barrel 4 and piston 5 and piston rod 6, connector 1 and caterpillar system is connected, connecting shaft 2 one end is fixedly connected with connector 1, and the other end of connecting shaft 2 is fixedly connected with the bottom of cylinder barrel 4, and piston 5 is slidably arranged in In cylinder barrel 4, one end of piston rod 6 is fixedly connected with piston 5, and the other end of piston rod 6 stretches out the cylinder mouthful of cylinder barrel 4, and spring 3 is set with On cylinder barrel 4 and positioned between connector 1 and cylinder barrel 4, piston 5 will be divided into rodless cavity and rod chamber, piston rod 6 in cylinder barrel 4 Separate the first oil circuit 61 and the second oil circuit 62 is provided with, one end of the first oil circuit 61 is connected with rodless cavity, the first oil The other end on road 61 and the ft connection of cylinder barrel 4, one end of the second oil circuit 62 are connected with rod chamber, the second oil circuit 62 it is another End and the ft connection of cylinder barrel 4.

The cylinder mouth of cylinder barrel 4 is additionally provided with cylinder cap 7, and the other end of piston rod 6 stretches out cylinder cap 7, between piston rod 6 and cylinder cap 7 It is provided with sealing ring and dust ring.Sealing ring and dust ring are provided between piston 5 and the inwall of cylinder barrel 4.Caterpillar system automatic tensioning Tight device also includes alignment pin 8, and alignment pin 8 is in cylinder barrel 4 and insertion connecting shaft 2.Cylinder barrel 4 is in circular cone close to the outer ring of bottom Shape, and the external diameter of cone is gradually incremental from cylinder barrel 4 to cylinder mouth.

Operation principle:When the other end oil-feed of the first oil circuit 61, the fluid increase in rodless cavity, due to piston rod 6 Other end installation site is fixed, therefore piston 5 is motionless, and cylinder barrel 4 promotes connecting shaft 2 to be moved to connector 1, and connector 1 to lead To 9 outside tensioners of wheel, track tensioning, spring 3 is in impaction state, when directive wheel 9 is hit, and can play buffering and make With, now, because the space of rod chamber is less and less, therefore, the fluid in rod chamber enters from one end of the second oil circuit 62, then Flowed out from the other end of the second oil circuit 62;

When the other end oil-feed of the second oil circuit 62, the fluid increase in rod chamber, because the other end of piston rod 6 is installed Position is fixed, therefore piston 5 is motionless, and cylinder barrel 4 is retracted, drive connecting shaft 2 retract, finally cause connector 1 drive directive wheel 9 to Interior motion, crawler belt loosens, now, because the space of rodless cavity is less and less, therefore, and the fluid in rodless cavity is from the first oil circuit 61 One end enter, then flowed out from the other end of the first oil circuit 61.

Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.

Claims (5)

1. a kind of caterpillar system automatic tension device, including connector (1), connecting shaft (2), spring (3), cylinder barrel (4) and work Fill in directive wheel (9) connection in (5) and piston rod (6), the connector (1) and caterpillar system, one end of the connecting shaft (2) It is fixedly connected with connector (1), the other end of connecting shaft (2) is fixedly connected with the bottom of cylinder barrel (4), piston (5), which is slided, to be set In cylinder barrel (4), one end of the piston rod (6) is fixedly connected with piston (5), and the other end of piston rod (6) stretches out cylinder barrel (4) Cylinder mouthful, the spring (3) is sleeved on cylinder barrel (4) and positioned between connector (1) and cylinder barrel (4), it is characterised in that:It is described Piston (5) will be divided into rodless cavity and rod chamber, the piston rod (6) in cylinder barrel (4) is provided with the first separate oil circuit (61) and the second oil circuit (62), one end of first oil circuit (61) is connected with rodless cavity, the other end of the first oil circuit (61) With the ft connection of cylinder barrel (4), one end of second oil circuit (62) is connected with rod chamber, the other end of the second oil circuit (62) With the ft connection of cylinder barrel (4).
2. caterpillar system automatic tension device as claimed in claim 1, it is characterised in that:The cylinder mouthful of the cylinder barrel (4) is also set Be equipped with cylinder cap (7), the other end of piston rod (6) stretches out cylinder cap (7), be provided between piston rod (6) and cylinder cap (7) sealing ring with Dust ring.
3. caterpillar system automatic tension device as claimed in claim 1, it is characterised in that:In the piston (5) and cylinder barrel (4) Sealing ring and dust ring are provided between wall.
4. caterpillar system automatic tension device as claimed in claim 1, it is characterised in that:Also include alignment pin (8), it is described fixed Position pin (8) is in cylinder barrel (4) and insertion connecting shaft (2).
5. caterpillar system automatic tension device as claimed in claim 1, it is characterised in that:The cylinder barrel (4) is close to bottom Outer ring is gradually incremented by cone, and the external diameter of cone from cylinder barrel (4) to cylinder mouth.
CN201710155229.6A 2017-03-16 2017-03-16 Caterpillar system automatic tension device CN106945737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710155229.6A CN106945737A (en) 2017-03-16 2017-03-16 Caterpillar system automatic tension device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710155229.6A CN106945737A (en) 2017-03-16 2017-03-16 Caterpillar system automatic tension device

Publications (1)

Publication Number Publication Date
CN106945737A true CN106945737A (en) 2017-07-14

Family

ID=59472035

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710155229.6A CN106945737A (en) 2017-03-16 2017-03-16 Caterpillar system automatic tension device

Country Status (1)

Country Link
CN (1) CN106945737A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2601238Y (en) * 2003-01-13 2004-01-28 安徽省三色照明股份有限公司 Hydraulic controller for crane level supporting and upright support sequential extension action
US20050035654A1 (en) * 2003-03-31 2005-02-17 Komatsu Ltd. Crawler track tension adjusting device
JP2005306308A (en) * 2004-04-23 2005-11-04 Shin Caterpillar Mitsubishi Ltd Vehicle
CN102530119A (en) * 2010-12-07 2012-07-04 斗山英维高株式会社 Crawler spring tension maintaining device of heavy construction equipment
CN203078630U (en) * 2012-12-31 2013-07-24 泉州市泉永机械发展有限公司 Excavator track tensioning cylinder
CN203581160U (en) * 2013-12-09 2014-05-07 中联重科股份有限公司 Crawler tensioning device and excavator with same
CN104370223A (en) * 2014-11-05 2015-02-25 徐州徐工随车起重机有限公司 Hydraulic control system for controlling sequential telescoping of three cylinders, lifting arm mechanism and crane
CN105416426A (en) * 2015-12-03 2016-03-23 天津市中机雄风机械有限公司 Tensioning device for excavator crawler belt
CN205203179U (en) * 2015-10-27 2016-05-04 江阴市长龄机械制造有限公司 Tension device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2601238Y (en) * 2003-01-13 2004-01-28 安徽省三色照明股份有限公司 Hydraulic controller for crane level supporting and upright support sequential extension action
US20050035654A1 (en) * 2003-03-31 2005-02-17 Komatsu Ltd. Crawler track tension adjusting device
JP2005306308A (en) * 2004-04-23 2005-11-04 Shin Caterpillar Mitsubishi Ltd Vehicle
CN102530119A (en) * 2010-12-07 2012-07-04 斗山英维高株式会社 Crawler spring tension maintaining device of heavy construction equipment
CN203078630U (en) * 2012-12-31 2013-07-24 泉州市泉永机械发展有限公司 Excavator track tensioning cylinder
CN203581160U (en) * 2013-12-09 2014-05-07 中联重科股份有限公司 Crawler tensioning device and excavator with same
CN104370223A (en) * 2014-11-05 2015-02-25 徐州徐工随车起重机有限公司 Hydraulic control system for controlling sequential telescoping of three cylinders, lifting arm mechanism and crane
CN205203179U (en) * 2015-10-27 2016-05-04 江阴市长龄机械制造有限公司 Tension device
CN105416426A (en) * 2015-12-03 2016-03-23 天津市中机雄风机械有限公司 Tensioning device for excavator crawler belt

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Application publication date: 20170714