CN201953956U - Leveling machine and gear box thereof - Google Patents
Leveling machine and gear box thereof Download PDFInfo
- Publication number
- CN201953956U CN201953956U CN2010206148315U CN201020614831U CN201953956U CN 201953956 U CN201953956 U CN 201953956U CN 2010206148315 U CN2010206148315 U CN 2010206148315U CN 201020614831 U CN201020614831 U CN 201020614831U CN 201953956 U CN201953956 U CN 201953956U
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- gear
- grader
- output
- worm
- output shaft
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Abstract
The utility model discloses a leveling machine and a gear box thereof. The gear box of the leveling machine comprises a casing, a gear worm transmission mechanism, an output shaft and an output gear. The output gear is sleeved onto the output shaft. The output gear is positioned by a compression assembly installed on the output shaft and the compression assembly can synchronously rotate along with the output shaft. The leveling machine comprises a leveling machine body and a gear box arranged on the leveling machine body, wherein the above gear box is adopted. The respective independence of the output shaft and the output gear is realized by the gear box of the leveling machine. When in operation, the gear and the worm will not be damaged under the work impact. When the output gear is worn or broken, the output gear can be replaced independently. The leveling machine and the gear box thereof have the advantages of simple and compact structure, simple and fast replacing, low maintenance cost and long service life.
Description
Technical field
The utility model is mainly concerned with engineering machinery field, refers in particular to a kind of grader and grader Worm gear case.
Background technique
During grader work, by the fluid motor-driven Worm gear case, Worm gear case and turning circle make turning circle drive perching knife and rotate by gear transmission, regulate the operating angle of perching knife.Grader Worm gear case output gear and turning circle are formed an interior meshed gears transmission (profile of tooth of Worm gear case output gear is a circular arc), and the driving rotational circle rotates, and adjust the angle of grader perching knife and vehicle body.Grader is when operation, and certain impact can be caused to perching knife in ground, and the impact meeting is delivered to Worm gear case output gear and worm and gear by turning circle, causes the damage of worm and gear in Worm gear case output gear and turning circle engaging tooth, the Worm gear case.When breaking down, maintenance or replacing are all very difficult.
At present, dual mode is generally adopted in the transmission of grader Worm gear case: a kind of is directly to be exported by output shaft after the worm and gear transmission; The 2nd, in the middle of worm gear and worm screw, increase friction plate, by the pressure of regulating friction plate the predefined value that worm and gear trackslips is set, with this Worm gear case is carried out overload protection.And all there is defective in this dual mode; first kind of mode can not effectively be protected the worm and gear and the output gear of Worm gear case; the second way is then adjusted difficulty to the pressure of friction plate; be difficult to formulate an exercisable examination criteria; cause the predefined value that trackslips inconsistent; maybe can not play protective action, maybe can cause perching knife rotation when operation, influence homework precision and efficient Worm gear case.And machine works is after a period of time, and wearing and tearing can appear in friction plate, and pressure can change, and needs often to adjust.
In addition, during the grader operation, the big load between Worm gear case output gear and turning circle, frequent transmission meeting cause the wearing and tearing and the fracture of the Worm gear case output gear teeth, need often to change output gear.And the output shaft of the Worm gear case of grader and output gear are as a whole, and this structure processing, heat treatment and replacing are all very difficult, and cost is higher.
The model utility content
Technical problem to be solved in the utility model is: at the technical problem that prior art exists, the utility model provide a kind of simple and compact for structure, can effectively protect worm and gear, increase the service life, dismounting simple and fast, the grader Worm gear case that maintenance cost is low and difficulty of processing is low, machining accuracy is high and grader with this kind Worm gear case.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of grader Worm gear case, comprise casing, Worm and worm-wheel gearing, output shaft and output gear, it is characterized in that: described output gear is sheathed on the output shaft, and the outside of described output gear is installed in by one also can be with the location that holds down assembly of the synchronous rotation of output shaft on the output shaft.
As to further improvement of the utility model:
Described output gear is connected on described the holding down assembly by more than one overload protection arrangement.
Described overload protection arrangement be arranged in hold down assembly and output gear on guard pin.
Described output gear comprises that two are the gear web of positioned opposite and are installed in two above profile of tooth posts between two gear webs, offers on the described gear web to be used for the installation axle hole that cooperates with output shaft.
Described gear web is circular, and described two above profile of tooth posts are arranged in the form of a ring in equally spaced mode.
Described gear web is provided with profile of tooth post mounting hole, and described profile of tooth post is inserted in the profile of tooth post mounting hole.
Described holding down assembly is the gear pressing plate, and described gear pressing plate is provided with a square opening, and described output shaft is provided with the square shaft section that cooperates with square opening, and described gear pressing plate is sheathed on the square shaft section of output shaft.
The utility model further provides a kind of grader, comprises the grader body and is installed in Worm gear case on the grader body, it is characterized in that: described Worm gear case is above-mentioned each Worm gear case.
Compared with prior art, advantage of the present utility model is:
1, grader Worm gear case of the present utility model, output gear and output shaft are split-type design, output gear and output shaft are by being connected, can realize that output shaft and output gear are independent separately, when output gear wearing and tearing or fracture, can change output gear separately, it is simple and compact for structure, replacing is simple and easy quick, and maintenance cost is low; The utility model further with output gear by overload protection arrangement be connected in hold down assembly on, guarantee under operation is impacted, can not damage worm and gear, prolong its working life;
2, grader Worm gear case of the present utility model, output gear is a split modular structure, main body is with after output gear separates, but each assembly separate machined, difficulty of processing descends, and machining accuracy improves; Simultaneously, conveniently separately heat-treat, can guarantee the intensity and the wear resistance of the main body and the gear teeth;
3, grader of the present utility model because of having adopted above-mentioned Worm gear case, therefore also should possess above-mentioned advantage.
Description of drawings
Fig. 1 is a main TV structure schematic representation of the present utility model;
Fig. 2 is the broken section structural representation at A-A place among Fig. 1;
Fig. 3 is the structural representation of the utility model grader.
Marginal data
1, casing; 2, output gear; 21, profile of tooth post; 22, gear web; 31, turning circle; 32, Worm gear case; 33, perching knife; 4, gear pressing plate; 5, packing ring; 6, output shaft; 7, nut; 8, guard pin; 9, grader body.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
As shown in Figure 1 and Figure 2; grader Worm gear case of the present utility model; comprise casing 1, Worm and worm-wheel gearing, output shaft 6 and output gear 2; output gear 2 passes through circular axis hole sliding sleeve on output shaft 6; the outside of output gear 2 is installed in the location that holds down assembly that can rotate synchronously on the output shaft 6 by one, and output gear 2 by more than one overload protection arrangement be connected in hold down assembly on.Like this, output gear 2 is a split-type design with output shaft 6, and output gear 2 and output shaft 6 can realize that by being connected output shaft 6 and output gear 2 are independent separately.When output gear wearing and tearing or fracture, can change output gear 2 separately, it is simple and compact for structure, replacing is simple and easy quick, and maintenance cost is low.With output gear 2 by overload protection arrangement be connected in hold down assembly on, can guarantee under operation is impacted, can not damage worm and gear, prolong its working life.
In the present embodiment, overload protection arrangement is two guard pins 8, hold down assembly and output gear 2 on the relevant position be equipped with pin-and-hole, guard pin 8 is arranged in the pin-and-hole.The quantity of guard pin 8 and size can be set according to the intensity of worm and gear, the assurance that also is easy to get of the conformity of guard pin 8, and its processing is simple, cost is low, it is also very easy to change.This structure can guarantee that guard pin 8 is fracture at first under powerful operation is impacted, and is not damaged with protection worm and gear and output gear 2, and prolonged its working life.
In the present embodiment, output gear 2 is split type built-up gear, output gear 2 comprises that two are the gear web 22 of positioned opposite and are installed in two above profile of tooth posts 21 between two gear webs 22, offers on the gear web 22 to be used for the installation axle hole that cooperates with output shaft 6.Gear web 22 is circular, is six in two above profile of tooth post 21(present embodiments) arrange in the form of a ring in equally spaced mode.Gear web 22 is provided with profile of tooth post mounting hole, and the two ends of profile of tooth post 21 are step-like, and profile of tooth post 21 is inserted in the profile of tooth post mounting hole, and utilizes the step location; Like this, a plurality of profile of tooth post 21 and two gear webs 22 are assembled into a conveniently detachable integral body.The center of two gear webs 22 is equipped with a circular axis hole; two gear webs 22 are located on the output shaft 6 by this circular mounting shaft hole sleeve, and wherein a gear web 22 is provided with the pin-and-hole (with the gear web 22 that holds down assembly and contact) that is used to wear guard pin 8.Output gear 2 is a fabricated structure, can with gear web 22 with profile of tooth post 21 separate machined, separate heat treatment, it is easy to process, difficulty descends, the precision of each parts, intensity and wear resistance all are guaranteed easily.
In the present embodiment, hold down assembly and comprise gear pressing plate 4, the center of gear pressing plate 4 is provided with a square opening, and output shaft 6 is provided with the square shaft section that cooperates with square opening, and gear pressing plate 4 is sheathed on the square shaft section of output shaft 6 and by the nut 7 of being located at output shaft 6 ends and packing ring 5 and is locked.This is simple in structure, makes and install all to be easy to.
When grader was worked, the output shaft 6 of Worm gear case can directly drive the gear pressing plate 4 that is installed on the square shaft section and rotate synchronously, and gear pressing plate 4 drives output gear 2 rotations by guard pin 8 again.If be subjected to powerful impact during grader blade operation, then its impact force is delivered to output gear 2 by turning circle and passes to guard pin 8 again, and guard pin 8 is at first ruptured, and output gear 2 stops the rotation, and worm and gear is not hit, and prolong working life.
As shown in Figure 3, a kind of grader of the present utility model comprises grader body 9, is equiped with above-mentioned Worm gear case 32 on this grader body 9, and the output terminal of this Worm gear case 32 is being with perching knife 33 to rotate by turning circle 31.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technological schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art the some improvements and modifications not breaking away under the utility model principle prerequisite all should be considered as protection domain of the present utility model.
Claims (8)
1. grader Worm gear case, comprise casing (1), Worm and worm-wheel gearing, output shaft (6) and output gear (2), it is characterized in that: described output gear (2) is sheathed on the output shaft (6), and the outside of described output gear (2) is installed in output shaft (6) by one upward also can be with the location that holds down assembly of the synchronous rotation of output shaft (6).
2. grader Worm gear case according to claim 1 is characterized in that: described output gear (2) is connected on described the holding down assembly by more than one overload protection arrangement.
3. grader Worm gear case according to claim 2 is characterized in that: described overload protection arrangement for be arranged in hold down assembly and output gear (2) on guard pin (8).
4. according to claim 1 or 2 or 3 described grader Worm gear cases, it is characterized in that: described output gear (2) comprises that two are the gear web (22) of positioned opposite and are installed in two above profile of tooth posts (21) between two gear webs (22), offers on the described gear web (22) to be used for the installation axle hole that cooperates with output shaft (6).
5. grader Worm gear case according to claim 4 is characterized in that: described gear web (22) is for circular, and described two above profile of tooth posts (21) are arranged in the form of a ring in equally spaced mode.
6. grader Worm gear case according to claim 4 is characterized in that: described gear web (22) is provided with profile of tooth post mounting hole, and described profile of tooth post (21) is inserted in the profile of tooth post mounting hole.
7. according to claim 1 or 2 or 3 described grader Worm gear cases, it is characterized in that: described holding down assembly is gear pressing plate (4), described gear pressing plate (4) is provided with a square opening, described output shaft (6) is provided with the square shaft section that cooperates with square opening, and described gear pressing plate (4) is sheathed on the square shaft section of output shaft (6).
8. grader comprises grader body (9) and is installed in Worm gear case on the grader body (9) that it is characterized in that: described Worm gear case is each described Worm gear case in the claim 1～7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206148315U CN201953956U (en) | 2010-11-19 | 2010-11-19 | Leveling machine and gear box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206148315U CN201953956U (en) | 2010-11-19 | 2010-11-19 | Leveling machine and gear box thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953956U true CN201953956U (en) | 2011-08-31 |
Family
ID=44498066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206148315U Expired - Fee Related CN201953956U (en) | 2010-11-19 | 2010-11-19 | Leveling machine and gear box thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953956U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102727A (en) * | 2013-06-17 | 2015-11-25 | 株式会社小松制作所 | Motor grader |
| CN107044286A (en) * | 2017-06-09 | 2017-08-15 | 三重工股份有限公司 | Increase resistance body and development machine |
| CN113685494A (en) * | 2021-08-30 | 2021-11-23 | 徐州徐工传动科技有限公司 | Worm gear and worm transmission case and engineering machinery |
-
2010
- 2010-11-19 CN CN2010206148315U patent/CN201953956U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102727A (en) * | 2013-06-17 | 2015-11-25 | 株式会社小松制作所 | Motor grader |
| CN105102727B (en) * | 2013-06-17 | 2017-03-08 | 株式会社小松制作所 | Land leveller |
| US9644341B2 (en) | 2013-06-17 | 2017-05-09 | Komatsu Ltd. | Motor grader |
| CN107044286A (en) * | 2017-06-09 | 2017-08-15 | 三重工股份有限公司 | Increase resistance body and development machine |
| CN107044286B (en) * | 2017-06-09 | 2023-05-26 | 三一重工股份有限公司 | Resistance-increasing body and heading machine |
| CN113685494A (en) * | 2021-08-30 | 2021-11-23 | 徐州徐工传动科技有限公司 | Worm gear and worm transmission case and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20151119 |