CN104015823B - Pull bar and the swelling device with the pull bar - Google Patents
Pull bar and the swelling device with the pull bar Download PDFInfo
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- CN104015823B CN104015823B CN201410243271.XA CN201410243271A CN104015823B CN 104015823 B CN104015823 B CN 104015823B CN 201410243271 A CN201410243271 A CN 201410243271A CN 104015823 B CN104015823 B CN 104015823B
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- pull bar
- rod
- gland
- ring
- limit mechanism
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Abstract
The invention discloses a kind of pull bar, including the body of rod, it is integrally formed in lever front end flange, with the position-limit mechanism for being arranged on described body of rod afterbody, described position-limit mechanism includes the ring groove for forming body of rod afterbody, is matchingly embedded in the divided ring in described ring groove, and gland, described gland front end, which is formed with, can accommodate described divided ring cavity therein, and described gland rear end is positioned by snap ring with respect to the body of rod.The position-limit mechanism of pull bar of the present invention uses split ring type position-limit mechanism, and divided ring is as the person of being primarily subjected to of power, and gland is that positioning divided ring prevents that it from coming off, and the structure spacing than end thread nut screw connection is easy to manufacture to process, while reducing assembly difficulty.Pull bar front end is positioned using flange simultaneously, i.e., positioned using step, simple in construction to be easily assembled to and bonding strength height, while can effectively prevent that described pull bar from rotating by corresponding polygonal design.
Description
Technical field
The present invention relates to field of mechanical technique, more particularly to a kind of pull bar and the swelling device with the pull bar.
Background technology
Crawler type traveling machine, such as bull-dozer have tractive force big, and grounding pressure is low, the strong radius of turn of climbing capacity is small
The advantages of, therefore the extensive utilization in engineering construction, the running gear of crawler type traveling machine is for supporting body, starting
The torque and rotary motion that machine is passed on driving wheel are changed into the driving force for promoting bull-dozer work and traveling.Caterpillar belt tightening device
On the one hand it is the tensioner degree for ensureing that crawler belt is appropriate as the core component of crawler body system, it is ensured that the driving effect of caterpillar system
Rate, is on the other hand the absorption damping for encountering obstacle to guide wheel and crawler belt in the process of walking, lifts the life-span on whole chassis.
Pull bar is limited as the main stressed member in tensioning apparatus, the precommpression of spring by pull bar.At present both at home and abroad often
With the pull bar in swelling device mainly using the rotation of pull bar is fixed against by pin and preceding guide bracket in front end, in rear end,
By nut and lock pad pull bar end cooperation by its relatively after guide bracket spacing fixation, this traditional Tiebar structure technique
Complicated with assembling, the degree of modularity is low.
The content of the invention
The purpose of the present invention is, for technological deficiency present in prior art, and to provide a kind of pull bar and with the pull bar
Swelling device.
To realize that the technical scheme that the purpose of the present invention is used is：
A kind of pull bar, including the body of rod, are integrally formed in lever front end flange, and be arranged on the spacing of described body of rod afterbody
Mechanism, described position-limit mechanism includes the ring groove for forming body of rod afterbody, is matchingly embedded in the divided ring in described ring groove,
And gland, described gland front end, which is formed with, can accommodate described divided ring cavity therein, described gland rear end by
Snap ring is positioned with respect to the body of rod.
The flange of described lever front end is in polygonized structure, is accordingly formed at the rear portion of the inner chamber of draw rod attachment part part
There is the polygon stopper slot matched with described flange.
Described body of rod center be formed with axially through oiling passage and described body of rod afterbody is provided with oiling
Hole is to install fuel feeding valve.
Including preceding guide bracket, rear guide bracket and oil cylinder, described pull bar front end is connected with the shoe cream room of oil cylinder.
Compared with prior art, the beneficial effects of the invention are as follows：
The position-limit mechanism of pull bar of the present invention uses split ring type position-limit mechanism, and divided ring is used as the person of being primarily subjected to of power, pressure
Simply positioning divided ring prevents that it from coming off to lid, and the structure spacing than end thread nut screw connection is easy to manufacture to process, dropped simultaneously
Low assembly difficulty.Pull bar front end is positioned using flange simultaneously, i.e., positioned using step, simple in construction to be easily assembled to and connect strong
Degree is high, while can effectively prevent that described pull bar from rotating by corresponding polygonal design.
The present invention uses the swelling device of the pull bar, simplifies global design using the Oil Guide function of pull bar, improves note
Operating effect when oily.
Brief description of the drawings
Fig. 1 show the configuration schematic diagram of the pull bar with the present invention；
Fig. 2 show the packaging cross section structure schematic diagram of the swelling device of the pull bar with the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
As illustrated in fig. 1 and 2, pull bar of the invention includes the body of rod 1, is integrally formed in the flange 2 of lever front end, sets the body of rod
The position-limit mechanism of rear end, described position-limit mechanism includes the ring groove 3 for forming body of rod afterbody, is matchingly embedded in described ring groove
In divided ring 4, and gland 5, described gland front end, which is formed with, can accommodate described divided ring cavity therein, described
Gland rear end by snap ring 6 with respect to the body of rod position, i.e., also set up neck on the body of rod of pull bar, gland be inserted in from pull bar tail end
And divided ring is embedded in the cavity of gland, and then snap ring is embedded in neck, can be relative by gland using divided ring and snap ring
Pull bar is positioned.
Using split ring type position-limit mechanism, divided ring is as the person of being primarily subjected to of power, and gland is that positioning divided ring is prevented
It comes off, the structure spacing than end thread nut screw connection, is easy to manufacture to process, while reducing assembly difficulty.Before simultaneously
Hold using flange positioning, i.e., positioned using step, it is simple in construction to be easily assembled to and bonding strength height, to prevent that described pull bar from turning
Dynamic, the flange of described lever front end is in polygonized structure, such as hexagon or octagon, accordingly with draw rod attachment part part
The rear portion of inner chamber is formed with the polygon stopper slot matched with described flange.Wherein, before described draw rod attachment part part can be
Guide bracket or rear guide bracket or miscellaneous part, because being positioned using step, then can include a bottom in corresponding connection parts part
Base plate is formed with the inner chamber of through hole to realize the company of pull bar front end and corresponding draw rod attachment part part by step-like position limiting structure
Connect, it is in the present invention that the Cross section Design of intracavity bottom is spacing to constitute polygon for polygonized structure corresponding with the section of flange
Groove, the cooperation of polygon stopper slot and flange can effectively prevent that both from relatively rotating, and then realize the anti-rotation design of pull bar.
Meanwhile, for ease of the oiling into swelling device, the body of rod center of described pull bar be formed with axially through note
Oily passage 7 is simultaneously provided with oilhole in described pull bar afterbody, and described pull bar front end is connected with the shoe cream room of oil cylinder.Pass through pull bar
It is used as conduction, thus it is possible to vary oiling position, improves operability.It is pointed out that can be suitable for this new pull bar
Any swelling device for including oil cylinder, it is only necessary to the shoe cream room of oil cylinder is connected with the oiling passage of this new pull bar and be can be achieved
The purpose of convenient oiling.
Be further elaborated below with application of the pull bar in the swelling device of preceding guide bracket and oil cylinder Integral design and
Explanation.
The swelling device includes rear guide bracket 8, preceding guide bracket 9, axle 10, pull bar and clamped is positioned between rear guide bracket and preceding guide bracket
Spring 11, wherein, it includes cylinder and is integrally formed in the method for cylinder rear end in convex shape structure for described rear guide bracket section
Flange-like bulge loop, and axially arranged have axially extending bore；Described preceding guide bracket is included before the cylinder and integrally formed cylinder of front opening
The outer rim at end, described axle front end be fixedly installed guide wheel back-end support matchingly insert in described preceding guide bracket inner chamber and
Cavity between rear end face and preceding guide bracket inner chamber base plate that its afterbody is provided with sealing mechanism to constitute piston structure, i.e. described axle
As shoe cream room, meanwhile, catch and oil sealing are fixedly installed in the front end of described preceding guide bracket with the axle described in positioning and guiding simultaneously
Oil sealing is set to enter oil pocket to prevent front end dust during sliding stop between axle and baffle ring, wherein, the rear end of described preceding guide bracket
Hole is formed through on base plate, the flange of pull bar front end of the invention is limited in the inner chamber of preceding guide bracket and can be by pull bar tail
The oilhole in portion conveys grease into shoe cream room, and only grease leakage is remained sealed against between the body of rod and through hole of pull bar, described
The rear end of pull bar passes through the axially extending bore of rear guide bracket and described tail end is provided with position-limit mechanism；Before and after wherein in the present invention
Before definition refers to that guide wheel end is, but the protection that front and rear definition simply referred to as can't be to the present invention with difference to name of parts
Scope is construed as limiting.
Wherein, the flange of described pull bar front end is in polygonized structure, such as regular hexagon, accordingly in described preceding guide bracket
The rear end of inner chamber be formed with the polygon stopper slot matched with described flange, polygon flange is matchingly embedded in polygon limit
Both can be prevented effectively from the groove of position to relatively rotate, the technique letter compared with the anti-rotation structure that pull bar coordinates with traditional pin
It is single, reduce processing cost.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of pull bar of swelling device, it is characterised in that described pull bar includes the body of rod, is integrally formed in lever front end convex
Edge, and the position-limit mechanism of described body of rod afterbody is arranged on, described position-limit mechanism includes the ring groove for forming body of rod afterbody,
The divided ring in described ring groove, and gland are embedded in ground, described gland front end is formed with can be by described divided ring
Cavity therein is accommodated, described gland rear end is positioned by snap ring with respect to the body of rod, described body of rod center, which is formed with, axially to be passed through
Logical oiling passage simultaneously is provided with oil filler point to install fuel feeding valve in described body of rod afterbody；
The flange of pull bar front end is limited in the inner chamber of the preceding guide bracket of swelling device and can be by the oilhole of pull bar afterbody to storage
Guide bracket section after grease, described swelling device is conveyed in oil pocket, and in convex shape structure, it includes cylinder and is integrally formed in cylinder
The Flange-shaped Parts bulge loop of rear end, and it is axially arranged have the axially extending bore walked of pull bar described in allowing, described lever front end it is convex
Edge is in polygonized structure, and the polygon matched with described flange is accordingly formed with the rear portion of the inner chamber of draw rod attachment part part
Stopper slot.
2. a kind of swelling device of the pull bar with described in claim 1, it is characterised in that including rear guide bracket and oil cylinder and
Axle, described pull bar front end is connected with the shoe cream room of oil cylinder, and described preceding guide bracket inner chamber is matchingly inserted in the rear end of described axle
It is interior and be provided with sealing mechanism to constitute piston structure in its afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243271.XA CN104015823B (en) | 2014-05-30 | 2014-05-30 | Pull bar and the swelling device with the pull bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243271.XA CN104015823B (en) | 2014-05-30 | 2014-05-30 | Pull bar and the swelling device with the pull bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104015823A CN104015823A (en) | 2014-09-03 |
| CN104015823B true CN104015823B (en) | 2017-07-18 |
Family
ID=51432911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410243271.XA Active CN104015823B (en) | 2014-05-30 | 2014-05-30 | Pull bar and the swelling device with the pull bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104015823B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202225935U (en) * | 2011-08-02 | 2012-05-23 | 山推工程机械股份有限公司 | Crawler tensioning device |
| US20130099433A1 (en) * | 2011-10-19 | 2013-04-25 | Timothy D. Wodrich | Recoil spring assembly |
| CN202608924U (en) * | 2012-06-26 | 2012-12-19 | 济宁市吉华工程机械有限公司 | Tensioning and buffering device of paver walking mechanism |
| CN202608923U (en) * | 2012-06-26 | 2012-12-19 | 济宁市吉华工程机械有限公司 | Tensioning device of chassis walking mechanism of rotary drilling rig |
| 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 |
| CN103381859A (en) * | 2013-07-09 | 2013-11-06 | 北京理工大学 | Automatic takeup suitable for tracked robot |
| CN203996526U (en) * | 2014-05-30 | 2014-12-10 | 天津柳工机械有限公司 | Pull bar and there is the swelling device of this pull bar |
-
2014
- 2014-05-30 CN CN201410243271.XA patent/CN104015823B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104015823A (en) | 2014-09-03 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150911 Address after: 213000 Jiangsu city of Changzhou province Yancheng Wujin high tech Industrial Development Zone, Road No. 588 Applicant after: LIUGONG CHANGZHOU MACHINERY CO., LTD. Applicant after: Guangxi Liugong Machinery Co., Ltd. Address before: 300300 No. three, No. 203, Tianjin Airport Economic Zone, Binhai New Area, Tianjin Applicant before: Tianjin Liugong Machinery Co., Ltd. Applicant before: Guangxi Liugong Machinery Co., Ltd. |
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