CN101746425A - Thrust wheel and guide wheel of crawler type mechanical travelling mechanism - Google Patents
Thrust wheel and guide wheel of crawler type mechanical travelling mechanism Download PDFInfo
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- CN101746425A CN101746425A CN200910266878A CN200910266878A CN101746425A CN 101746425 A CN101746425 A CN 101746425A CN 200910266878 A CN200910266878 A CN 200910266878A CN 200910266878 A CN200910266878 A CN 200910266878A CN 101746425 A CN101746425 A CN 101746425A
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- roller body
- roller
- sleeve assembly
- caterpillar
- wheel
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Abstract
The invention discloses a thrust wheel and a guide wheel of a crawler type mechanical travelling mechanism. The thrust wheel and the guide wheel comprise a roller shaft (1) and a roller body (2) suited on the roller shaft (1), wherein a shaft sleeve component (3) fixed with the roller body (2) is arranged in an inner hole of the roller body; and the thrust wheel and the guide wheel of the crawler type mechanical travelling mechanism are characterized in that interference fit is adopted between the shaft sleeve component and the roller body on the outer side, and a retaining ring (4) for axially limiting the roller body and the shaft sleeve component is arranged on the outer side of the shaft sleeve component. The thrust wheel and the guide wheel avoid the through hole alignment step and the locking step during the processing and assembling process of the threaded holes for the roller body and the shaft sleeve component, greatly improves the assembly quality and the assembly efficiency of the thrust wheel, also improves the quality of the thrust wheel, reduces the production cost and can be applied to the chassis parts for the small and medium-sized engineering machinery, the construction machinery, the small and medium-sized agricultural machinery and the small and medium-sized special machinery.
Description
Technical field
The invention belongs to the caterpillar machinery chassis member design field in the technical field of engineering machinery, be specifically related to a kind of caterpillar wheel and guide wheel of caterpillar mechanical travelling mechanism.
Background technology
The tracked construction equipment running gear is divided into the track unit of track unit that caterpillar wheel is arranged and no caterpillar wheel according to having or not of caterpillar wheel.Because be mainly cliding friction during the walking of the track unit of no caterpillar wheel, it is comparatively serious to wear and tear, field of application is less.There is the track unit of caterpillar wheel mainly to form, i.e. crawler belt, drive wheel, guide wheel, track carrying wheel, caterpillar wheel and tightening device, track frame etc. by " four-wheel one band ".Drive wheel produces relay in pilled-in selvedge, driving section and the ground connection section of crawler belt during operation, owing between crawler belt under the caterpillar wheel and ground enough adhesive ability is arranged, stop pulling out of crawler belt, force drive wheel scrolling crawler belt, track adjusting wheel is routed to crawler belt on the ground again, thereby makes tracked construction equipment borrow the load-bearing of caterpillar wheel along crawler belt rail ahead running.Article two, crawler belt is driven by different actuating device (as fluid pressure drive device) respectively, realizes turning on the spot when the actuating device driving direction is opposite; When only a side drive device drives, realize turning to around a side crawler belt.
The tracked construction equipment running gear is because bearing surface area is big, grounding pressure is little, the traction adhesion value is good, and being difficult for skidding is that other running gears can not be compared; In a lot of industries application is arranged all.Because its friction force is a friction of rolling when having the track unit of caterpillar wheel to walk, friction force is little, so its duty ratio is bigger, can apply to the walking of big machinery and equipment.The tracked construction equipment running gear comprises roller structures such as caterpillar wheel and guide wheel.Caterpillar wheel is the weight that is used for supporting caterpillar machinery, and rolls on the chain rail of crawler belt, and machinery is travelled along the chain rail, and it also is used for the clamping crawler belt, makes it not along laterally slippage, and forces crawler belt slippage on the ground when turning.Caterpillar wheel is everlasting and is worked in the muddy water dust, and bears intense impact, and service conditions is very poor, requires therefore that its sealing is reliable, roller body is wear-resisting.
The keystone configuration of roller comprises that associated components such as roller body, roller shaft, sleeve assembly, first seal ring, second seal ring, roller shaft exterior and interior cover constitute.The general 40Mn2 of roller body material, 50Mn2, etc. material, main technique is forged, machine up is heat-treated then, the hardness after wheel surface is quenched will reach about HRC52, to increase the resistance to abrasion of wheel surface.The requirement on machining accuracy of roller shaft generally is to need numerically-controlled machine tool to process just can reach requirement than higher.Material is more with 45 steel, also will carry out quenching heat treatment after the processing, and hardness reaches about HRC54.Roller can be divided into monolateral roller and bilateral roller; Excavating machine is with roller and bulldozer roller.
Fig. 1 is common monolateral roller, the sheathed roller body 2 in roller shaft 1 outside of this roller, the sleeve assembly of fixing with roller body 23 is set in the described roller body endoporus, thereby described sleeve assembly 3 is by fixing axial limiting roller body and sleeve assemblies with the roller body bolt 8 in the outside.In order to lock roller body and sleeve assembly, when bolt connected, pad was established pad 9 on the bolt.The inside and outside lid 5,6 of the sheathed roller of captiveing joint with sleeve assembly 3 in described roller shaft both sides, inside and outside lid 5,6 of described roller and 3 of sleeve assemblies are provided with float grease seal 71 sealings.Described roller shaft 1 two ends are provided with side grain.Inside and outside lid 5,6 of roller and 1 of roller shaft are provided with an O RunddichtringO 72 sealings; 3 of roller body and sleeve assemblies are provided with 73 sealings of the 2nd O RunddichtringO.Wherein sleeve assembly comprises the iron cover and is arranged on the interior lining of iron cover, for fastening with roller body, usually is connected with iron cover flange in the iron cover outside.Common roller adopts the iron cover with roller body endoporus close-fitting and by bolt in caterpillar machinery chassis member, can limit the axial string momentum of roller shaft like this, yet such structure packaging efficiency is low, and it is many to take up room, and cost is than higher.The present invention comes therefrom.
Summary of the invention
Problems such as the object of the invention is to provide a kind of caterpillar wheel and guide wheel of caterpillar mechanical travelling mechanism, and it is low to have solved roller packaging efficiency of the prior art, and it is many to take up room, and cost is higher.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of caterpillar wheel of caterpillar mechanical travelling mechanism, comprise roller shaft and the roller body that is set on the roller shaft, be provided with in the described roller body endoporus and the fixing sleeve assembly of roller body, the roller body interference fit that it is characterized in that the described sleeve assembly and the outside, the back-up ring of described sleeve assembly arranged outside axial limiting roller body and sleeve assembly.
Preferably, described sleeve assembly comprises the iron cover of outer ring and roller body interference fit and is arranged on iron cover inner ring and the interaxle lining of roller, described lining and roller shaft close-fitting.
Preferably, described roller body is the symmetrical left and right roller body halfbody that is set on the roller shaft, and described left and right roller body halfbody is provided with in opposite directions, and welding is fixing between described left and right roller body halfbody.
Preferably, the left axle sleeve assembly of the setting and the wheel body halfbody interference fit that rolls left in the described wheel body halfbody endoporus that rolls left; Right axle sleeve assembly with right roller body halfbody interference fit is set in the described right roller body halfbody endoporus; Described left axle sleeve assembly arranged outside left side back-up ring, the right back-up ring of described right axle sleeve assembly arranged outside.
Preferably, offer limited impression on the described roller body, described back-up ring is arranged in the limited impression, and cooperates limit shaft grip assembly end float misalignment with sleeve assembly.
Preferably, described roller shaft is middle salient shoulder type step axle, and sheathed roller body on the convex shoulder of described roller shaft is provided with sleeve assembly between described roller shaft convex shoulder and roller body.
Preferably, the inside and outside lid of the sheathed roller in described roller shaft convex shoulder both sides the float grease seal sealing is set between inside and outside lid of described roller and sleeve assembly, and the inside and outside lid of described roller is captiveed joint with sleeve assembly.
Preferably, described roller shaft two ends are provided with side grain; Described roller shaft one end is provided with the filling oilhole and the plug cock of input lubricating oil.Certainly, on one of supporting wheel shaft side grain trapezoidal groove is set therein, is provided with in the described trapezoidal groove and prevents the axially movable flat key of supporting wheel shaft.
Preferably, O RunddichtringO sealing is set between inside and outside lid of described roller and roller shaft; The sealing of the 2nd O RunddichtringO is set between described roller body and sleeve assembly.
Preferably, described back-up ring is a C type back-up ring; Preferred, described back-up ring is selected from the individual pen back-up ring, two circle back-up rings, multi-turn back-up ring.
Another object of the present invention is to provide the guide wheel in a kind of caterpillar mechanical travelling mechanism, comprise roller shaft and the roller body that is set on the roller shaft, be provided with in the described roller body endoporus and the fixing sleeve assembly of roller body, the roller body interference fit that it is characterized in that the described sleeve assembly and the outside, the back-up ring of described sleeve assembly arranged outside axial limiting roller body and sleeve assembly.
Technical solution of the present invention bottom bracket axle assembly bottom bracket axle can be the composite metal cover, also can be copper sheathing.Roller of the present invention is symmetrical arranged, and can be monolateral roller, also can be bilateral roller; Sleeve assembly arranged outside float grease seal at roller can prevent that silt from entering or lubricating oil leaks; Side grain is made at the roller shaft two ends, can guarantee that roller shaft does not rotate.End at roller shaft is provided with the filling oilhole, can inject lubricating oil through this hole, with the lubricative axle sleeve assembly; When roller roller on the caterpillar chain rail, roller body, sleeve assembly rotate with respect to roller shaft, and machinery is travelled along the chain rail.
With respect to scheme of the prior art, advantage of the present invention is:
1. adopt sleeve assembly and roller body endoporus interference fit close-fitting in the technical solution of the present invention, and at sleeve assembly arranged outside back-up ring limited roller body and sleeve assembly, back-up ring limits the end float misalignment of roller shaft like this, plays the effect of bolt in the prior art.And technical solution of the present invention has been cancelled bolt commonly used in the prior art, has avoided the hole processing of roller body and sleeve assembly in the prior art, work efficiency when having improved processing roller body and sleeve assembly.Preferably, on the roller body endoporus, offer limited impression, interference fit by iron cover and wheel body limits relatively rotating of iron cover and wheel body, back-up ring is installed in the limited impression on the roller body endoporus simultaneously comes the string of restrictive axial moving, improved production efficiency, improved product design, thus efficient, the stable and reliable product quality of roller of the present invention assembling.
2, technical solution of the present invention is owing to cancelled the bolt fixed mode of roller body and sleeve assembly, and the problem of not locked when having avoided carrying out through hole centering and bolt in assembling process has improved the packaging efficiency when roller assembles, and has improved assembling quality.In addition because the interference fit by sleeve assembly and roller body and back-up ring is set, cancel the iron that is processed with tapped bore such as former need and overlapped flange, thereby dwindled the volume of sleeve assembly greatly, alleviated the weight of sleeve assembly, reduced productive costs.
3, cancel bolted connection in the optimal technical scheme of the present invention, cancelled the processing of roller body upper screwed hole and the processing of iron cover upper bolt hole, reduced the accuracy requirement of roller body and sleeve assembly end face processing, prolonged the process tool life-span.
In sum, the present invention has improved the production efficiency of assembling quality and the efficient and the processing caterpillar wheel part of roller greatly owing to be provided with the back-up ring that roller body and sleeve assembly interference fit and sleeve assembly are provided with axial limiting roller body and sleeve assembly; Owing to cancelled bolt, simplify the structure of the roller in the caterpillar machinery chassis spare simultaneously, reduced productive costs, improved the quality of caterpillar wheel product.Caterpillar wheel of the present invention and guide wheel can be applied in the caterpillar machinery chassis member, particularly in the vehicle chassis component of medial and small construction machinery, vehicle for construction, medium and small agricultural machinery and middle-size and small-size special mechanical.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is a roller structure scheme drawing common in the prior art;
Fig. 2 is the structural representation of embodiment of the invention caterpillar wheel;
Wherein: 1 is roller shaft, and 2 is roller body, and 3 is sleeve assembly; 4 is back-up ring, and 5 is the roller inner cap, and 6 is the roller enclosing cover, and 8 is bolt; 9 is pad; 11 is plug cock; 31 is the iron cover; 32 is lining; 72 is float grease seal; 72 is an O RunddichtringO; 73 is the 2nd O RunddichtringO.
The specific embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment as shown in Figure 2, the caterpillar wheel of this caterpillar mechanical travelling mechanism, be applied in the crawler doer, sheathed roller body 2 on the roller shaft 1 of this caterpillar wheel, the sleeve assembly of fixing with roller body 23 is set in the described roller body endoporus, the roller body interference fit in the described sleeve assembly and the outside, the back-up ring 4 of described sleeve assembly arranged outside axial limiting roller body and sleeve assembly; Described back-up ring is C type or individual pen or two circle or multi-turn jump ring.
Roller body is the symmetrical left and right roller body halfbody that is set on the roller shaft 1, and described left and right roller body halfbody is provided with in opposite directions, and welding is fixing between described left and right roller body halfbody.Left axle sleeve assembly with the wheel body halfbody interference fit that rolls left is set in the described wheel body halfbody endoporus that rolls left; Right axle sleeve assembly with right roller body halfbody interference fit is set in the described right roller body halfbody endoporus; Described left axle sleeve assembly arranged outside left side back-up ring, the right back-up ring of described right axle sleeve assembly arranged outside.Offer limited impression on the described roller body endoporus, described back-up ring 4 is arranged in the limited impression, and cooperates limit shaft grip assembly end float misalignment with sleeve assembly.
Roller shaft is middle salient shoulder type step axle, and sheathed roller body 2 on the convex shoulder of described roller shaft is provided with sleeve assembly 3 between described roller shaft convex shoulder and roller body.The inside and outside lid 5,6 of the sheathed roller in described roller shaft convex shoulder both sides, inside and outside lid 5,6 of described roller and 3 of sleeve assemblies are provided with float grease seal 71 sealings, and the inside and outside lid 5,6 of described roller is captiveed joint with sleeve assembly 3.Described roller shaft 1 two ends are provided with side grain.Described roller shaft 1 one ends are provided with the filling oilhole and the plug cock 11 of input lubricating oil.Inside and outside lid 5,6 of described caterpillar wheel and 1 of roller shaft are provided with an O RunddichtringO 72 sealings; 3 of described roller body and sleeve assemblies are provided with 73 sealings of the 2nd O RunddichtringO.
Sleeve assembly comprises the iron cover 31 of outer ring and roller body interference fit and is arranged on iron cover inner ring and the interaxle lining 32 of roller, described lining 32 and iron cover interference fit, after the caterpillar wheel assembling, can be by irritating oilhole input lubricating oil, described lubricating oil can the lubricative axle sleeve assembly, can prolong the life-span of sleeve assembly.
When using, in order to make crawler doer ground pressure rectangular distribution, the number of caterpillar wheel approximates the caterpillar block number of crawler belt supporting zone.When bulldozer runs into outstanding obstacle, can produce axial power.For fear of the play of roller shaft in such cases, roller shaft is arranged to salient shoulder type step axle, and can be according to the size of the size design convex shoulder of this axial force.
Present embodiment is because with roller body and iron cover interference fit, and limited impression is set at the endoporus of roller body, by the end float misalignment that back-up ring prevents roller shaft is set in the limited impression, simplified the structure of the caterpillar wheel in the caterpillar machinery chassis spare like this, cancelled the bolt structure that roller body commonly used in the prior art and iron overlap, reduced in roller body and the iron cover course of processing and carried out the hole processing operation, greatly reduced tooling cost; And owing to cancelled bolt, need not carry out through hole during the assembling caterpillar wheel to neutralization locking step, improve packaging efficiency and improved product design, in addition owing to cancelled the iron cover flange in the iron cover outside, alleviate caterpillar wheel weight greatly, reduced productive costs.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that spirit is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (10)
1. the caterpillar wheel of a caterpillar mechanical travelling mechanism, comprise roller shaft (1) and be set in roller body (2) on the roller shaft (1), be provided with in the described roller body endoporus and the fixing sleeve assembly (3) of roller body (2), the roller body interference fit that it is characterized in that the described sleeve assembly and the outside, the back-up ring (4) of described sleeve assembly arranged outside axial limiting roller body and sleeve assembly.
2. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 1, it is characterized in that described sleeve assembly comprises the iron cover (31) of outer ring and roller body interference fit and is arranged on iron cover inner ring and the interaxle lining of roller (32), described lining (32) and iron cover (31) interference fit.
3. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 1, it is characterized in that described roller body is that symmetry is set in the left and right roller body halfbody on the roller shaft (1), described left and right roller body halfbody is provided with in opposite directions, and welding is fixing between described left and right roller body halfbody.
4. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 3 is characterized in that being provided with in the described wheel body halfbody endoporus that rolls left the left axle sleeve assembly with the wheel body halfbody interference fit that rolls left; Right axle sleeve assembly with right roller body halfbody interference fit is set in the described right roller body halfbody endoporus; Described left axle sleeve assembly arranged outside left side back-up ring, the right back-up ring of described right axle sleeve assembly arranged outside.
5. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 3 is characterized in that offering limited impression on the described roller body endoporus, and described back-up ring (4) is arranged in the limited impression, and cooperates limit shaft grip assembly end float misalignment with sleeve assembly.
6. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 1, it is characterized in that described roller shaft is middle salient shoulder type step axle, sheathed roller body (2) on the convex shoulder of described roller shaft is provided with sleeve assembly (3) between described roller shaft convex shoulder and roller body.
7. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 6, it is characterized in that the inside and outside lid of the sheathed roller in described roller shaft convex shoulder both sides (5,6), float grease seal (71) sealing is set between inside and outside lid of described roller (5,6) and sleeve assembly (3), and the inside and outside lid of described roller (5,6) is captiveed joint with sleeve assembly (3).
8. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 6 is characterized in that described roller shaft (1) two ends are provided with side grain; Described roller shaft (1) one end is provided with the filling oilhole and the plug cock (11) of input lubricating oil.
9. the caterpillar wheel of caterpillar mechanical travelling mechanism according to claim 6 is characterized in that being provided with between inside and outside lid of described roller (5,6) and roller shaft (1) an O RunddichtringO (72) sealing; The sealing of the 2nd O RunddichtringO (73) is set between described roller body and sleeve assembly (3).
10. the guide wheel of a caterpillar mechanical travelling mechanism, comprise roller shaft (1) and be set in roller body (2) on the roller shaft (1), be provided with in the described roller body endoporus and the fixing sleeve assembly (3) of roller body (2), the roller body interference fit that it is characterized in that the described sleeve assembly and the outside, the back-up ring (4) of described sleeve assembly arranged outside axial limiting roller body and sleeve assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266878A CN101746425A (en) | 2009-12-28 | 2009-12-28 | Thrust wheel and guide wheel of crawler type mechanical travelling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266878A CN101746425A (en) | 2009-12-28 | 2009-12-28 | Thrust wheel and guide wheel of crawler type mechanical travelling mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN101746425A true CN101746425A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910266878A Pending CN101746425A (en) | 2009-12-28 | 2009-12-28 | Thrust wheel and guide wheel of crawler type mechanical travelling mechanism |
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| CN (1) | CN101746425A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745265A (en) * | 2012-01-05 | 2012-10-24 | 昆山腾宇鑫金属制品有限公司 | Thrust wheel for excavator traveling gear |
| CN102745261A (en) * | 2012-01-05 | 2012-10-24 | 昆山腾宇鑫金属制品有限公司 | Single-rim bearing wheel of excavator |
| CN104071243A (en) * | 2014-06-26 | 2014-10-01 | 昆山土山建设部件有限公司 | Supporting wheel |
| CN108275214A (en) * | 2018-03-26 | 2018-07-13 | 昆山土山建设部件有限公司 | A kind of wear-resisting heavy guide wheel |
| CN111361650A (en) * | 2020-04-30 | 2020-07-03 | 浙江三一装备有限公司 | Thrust wheel and tracked vehicle |
-
2009
- 2009-12-28 CN CN200910266878A patent/CN101746425A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745265A (en) * | 2012-01-05 | 2012-10-24 | 昆山腾宇鑫金属制品有限公司 | Thrust wheel for excavator traveling gear |
| CN102745261A (en) * | 2012-01-05 | 2012-10-24 | 昆山腾宇鑫金属制品有限公司 | Single-rim bearing wheel of excavator |
| CN104071243A (en) * | 2014-06-26 | 2014-10-01 | 昆山土山建设部件有限公司 | Supporting wheel |
| CN108275214A (en) * | 2018-03-26 | 2018-07-13 | 昆山土山建设部件有限公司 | A kind of wear-resisting heavy guide wheel |
| CN111361650A (en) * | 2020-04-30 | 2020-07-03 | 浙江三一装备有限公司 | Thrust wheel and tracked vehicle |
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Open date: 20100623 |