CN202182168U - Die casting type middle case body of mini-tiller transmission case - Google Patents
Die casting type middle case body of mini-tiller transmission case Download PDFInfo
- Publication number
- CN202182168U CN202182168U CN2011202975718U CN201120297571U CN202182168U CN 202182168 U CN202182168 U CN 202182168U CN 2011202975718 U CN2011202975718 U CN 2011202975718U CN 201120297571 U CN201120297571 U CN 201120297571U CN 202182168 U CN202182168 U CN 202182168U
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- casing
- case body
- die casting
- transmission case
- flanged surface
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Abstract
The utility model provides a die casting type middle case body of a mini-tiller transmission case, which comprises a case body. The case body is formed by die casting. A vertical through hole for installing a transmission shaft is disposed in the case body. A first flange face connected with an upper case body is arranged at the upper end of the case body, and a second flange face connected with a lower case body is disposed at the lower end of the case body. The first flange face and the second flange face are both provided with at least six bolt holes which are respectively located in four corners and in the middle of long sides. Three dragging-hanging body installation holes are disposed on the case body. Connection strength between the middle case body of the transmission case and the upper case body and the lower case body is higher, and stability is better. In addition, structural strength of the case body itself is improved, production efficiency is also improved when die casting is adopted as the mode of forming, and production cost is lowered.
Description
Technical field
The utility model belongs to the microtilling machine field of mechanical technique, is specially casing in a kind of die casting formula microtilling machine transmission case.
Background technique
Power transmission box is the important component part of microtilling machine driving mechanism; Coupling, power input shaft and walking axis etc. are installed in transmission case; The outputting power of motor passes to the input shaft in the power transmission box through coupling; Input shaft passes through the walking axis of vertical setting in the power transmission box again with the rotary tillage shaft of transmission of power to the below, and ploughs the cutter rotation by the rotary tillage shaft drive.In the existing technology, the power transmission box of microtilling machine all is to adopt cast molding, when making, requires a great deal of time mould is carried out cooling processing, and this makes whole transmission case manufacturability difference and cost higher.
Present transmission case is to adopt all-in-one-piece structure mostly; Like publication number is the Chinese patent of CN200956723; A kind of " microtilling machine desmodont walking case " disclosed; It comprises casing, input shaft, output shaft and be connected input shaft and output shaft between the desmodont variable transmission mechanism, its casing is to adopt monolithic construction.But; There is the bigger problem of difficulty when making moulding difficulty height and installation, maintenance in this transmission case casing, and therefore, the manufacturer that has at present has been designed to the structure by three the casing assembled formations in upper, middle and lower with transmission case; Though the casing of this structure has solved the bigger problem of installation difficulty; But, therefore exist again to connect the relatively poor problem of rear stability between each casing, in the microtilling machine working procedure because it is cutting apart of directly on original transmission case casing, carrying out; Transmission case is known from experience comparatively significantly vibration of generation, and it is bigger to cause wearing and tearing each other between the casing; Particularly owing on middle casing, also need connect the body of pulling that is used for supercharging, the local pressure of casing was very big during this made, ruptured easily.
The model utility content
To above-mentioned deficiency of the prior art; The main purpose of the utility model is to solve that microtilling machine transmission case manufacturability is poor, cost is higher; And installation connects the relatively poor problem of rear stability; A kind of reduction manufacture cost is provided, and casing in the die casting formula microtilling machine transmission case that rear stability is better, overall construction intensity is higher is installed.
The technological scheme of the utility model is following: casing in the die casting formula microtilling machine transmission case comprises casing; It is characterized in that said casing is a die cast; In casing, be provided with the vertical through holes that is used to install transmission shaft; Be provided with first flanged surface that is connected with upper box in the upper end of casing; Be provided with second flanged surface that is connected with lower box in the lower end of casing; Said first flanged surface and second flanged surface are equipped with at least six bolts hole, and said bolt hole lays respectively at the middle part on four angles and long limit; Casing is provided with three and pulls the body mounting hole.
The utility model adopts the moulding of die casting formula, and it is high to have solved traditional casting production cost, the problem of manufacturability difference.Flange junction surface through upper/lower terminal; Closely be connected with lower box with corresponding upper box respectively; Transmission case after make installing can form an integral body, can easy assembly and disassembly when installation, maintenance, can avoid again when microtilling machine work, occurring vibrating; Six bolts hole that particularly are provided with can be locked fully, have avoided casing joint partial aperture excessive and produce the situation of rocking.
Further technological scheme also is provided with some stiffening ribs on casing, and said stiffening rib is parallel to each other.The purpose that stiffening rib here is set is in order to strengthen the force intensity that receives of casing, and particularly because after carry is pulled body on the casing, stiffening rib can prevent the stressed excessive and distortion or damaged of casing.
Further technological scheme, said stiffening rib is parallel to each other.
With respect to existing technology, the utlity model has following beneficial effect:
1, owing to adopt the die cast structure, manufacturability is better, can make the overall structure volume littler, and quality is lighter, has reduced manufacture cost; And the existing cast molding production efficient of die cast is higher.
2, join strength is higher; Stability is better; Through six bolts hole are set respectively on first flanged surface and second flanged surface; Particularly a symmetrical bolt hole respectively is set, is easy to generate the problem of rocking after having solved middle casing and upper box and lower box being connected, improved whole steadiness in the both sides, middle part of each junction surface.
3, strengthened the structural strength of casing: the integral body of casing received force intensity during the stiffening rib of on casing, setting up can strengthen, and had avoided owing to pull the casing breakage that the weight of body causes.
Description of drawings
Fig. 1 is the plan view of casing in the utility model die casting formula microtilling machine transmission case;
Fig. 2 is the stereogram of casing in the utility model die casting formula microtilling machine transmission case;
Fig. 3 is the stereogram of another angle of casing in the utility model die casting formula microtilling machine transmission case.
Among the figure, 1-casing, 2-through hole, 3-the first flanged surface, 4-the second flanged surface, 5-bolt hole, 6-pull the body mounting hole, 7-stiffening rib, 8-supporting frame attachment hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Like Fig. 1, Fig. 2 and shown in Figure 3, casing in the die casting formula microtilling machine transmission case of the utility model comprises the casing 1 of hollow in casing 1, being provided with the vertical through holes 2 that is used to install transmission shaft; Be provided with first flanged surface 3 in the upper end of casing 1, be provided with second flanged surface 4 in the lower end of casing 1, be equipped with at least six bolts hole 5 on said first flanged surface 3 and second flanged surface 4, said bolt hole 5 evenly distributes.During installation; The upper end of casing 1 is connected with the upper box bolt of being located at the top through first flanged surface 3; The lower end of casing 1 is connected with the lower box bolt of below through second flanged surface, and transmission shaft passes and is connected with transmission part in the lower box with upper box respectively from the through hole 2 of casing 1.
Referring to Fig. 1, Fig. 2 and Fig. 3, a side also is provided with two supporting frame attachment holes 8 that are used to connect supporting frame at the middle part of casing 1, and support frame as described above is used to place the microtilling machine motor.On the side of casing 1, also be provided with three and pull body mounting hole 6, through be provided with three pull the body mounting hole can carry weight bigger pull body, and more firm after it is connected.On two sides of casing 1, also respectively be provided with four stiffening ribs 7, and set stiffening rib 7 is parallel to each other.Through said stiffening rib, can further increase the force intensity that receives of casing 1, prevent its distortion.
Casing has adopted the preparation process of die cast in the transmission case of the utility model, only need make mould after, just can Direct Production; Reduced traditional cast molding required cool time, improved manufacturing efficiency, particularly the improvement to mould is easier; Therefore can also be suitable reduce the casing volume; Make that so whole quality is lighter, also help improving the precision of each mounting hole, when reducing cost, can also ensure quality of product.
Need to prove; Above embodiment is only in order to explain the utility model technological scheme but not the restriction technologies scheme; Although the claimant specifies the utility model with reference to preferred embodiment, those of ordinary skill in the art should be appreciated that those technological schemes to the utility model make amendment or be equal to replacement; And do not break away from the aim and the scope of present technique scheme, all should be encompassed in the middle of the claim scope of the utility model.
Claims (3)
1. casing in the die casting formula microtilling machine transmission case comprises casing (1); It is characterized in that said casing (1) is a die cast; In casing (1), be provided with the vertical through holes (2) that is used to install transmission shaft; Be provided with first flanged surface (3) that is connected with upper box in the upper end of casing (1); Be provided with second flanged surface (4) that is connected with lower box in the lower end of casing (1); Said first flanged surface and second flanged surface are equipped with at least six bolts hole (5), and said bolt hole (5) lays respectively at the middle part on four angles and long limit; Casing (1) is provided with three and pulls body mounting hole (6).
2. casing in the die casting formula microtilling machine transmission case according to claim 1 is characterized in that, on casing (1), also is provided with some stiffening ribs (7).
3. casing in the die casting formula microtilling machine transmission case according to claim 2 is characterized in that said stiffening rib (7) is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202975718U CN202182168U (en) | 2011-08-16 | 2011-08-16 | Die casting type middle case body of mini-tiller transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202975718U CN202182168U (en) | 2011-08-16 | 2011-08-16 | Die casting type middle case body of mini-tiller transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182168U true CN202182168U (en) | 2012-04-04 |
Family
ID=46175205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202975718U Expired - Fee Related CN202182168U (en) | 2011-08-16 | 2011-08-16 | Die casting type middle case body of mini-tiller transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104685A (en) * | 2012-12-12 | 2013-05-15 | 重庆百吉四兴压铸有限公司 | Motorcycle die-casting-type transmission case tail cover |
-
2011
- 2011-08-16 CN CN2011202975718U patent/CN202182168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104685A (en) * | 2012-12-12 | 2013-05-15 | 重庆百吉四兴压铸有限公司 | Motorcycle die-casting-type transmission case tail cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401329 the Jiulongpo District of Chongqing Municipality Valley town Xinyuan Road No. 8 Patentee after: Chongqing Xinyuan Agricultural Machinery Co., Ltd. Address before: 401329 the Jiulongpo District of Chongqing Municipality Valley town Xinyuan Road No. 8 Patentee before: Chongqing Shineray Power Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20170816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |