CN202032066U - Micro-cultivator and gearbox - Google Patents

Micro-cultivator and gearbox Download PDF

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Publication number
CN202032066U
CN202032066U CN 201120070017 CN201120070017U CN202032066U CN 202032066 U CN202032066 U CN 202032066U CN 201120070017 CN201120070017 CN 201120070017 CN 201120070017 U CN201120070017 U CN 201120070017U CN 202032066 U CN202032066 U CN 202032066U
Authority
CN
China
Prior art keywords
gearbox
protecgulum
bonnet
protective housing
locking screw
Prior art date
Application number
CN 201120070017
Other languages
Chinese (zh)
Inventor
刘大明
Original Assignee
重庆华世丹机械制造有限公司
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 重庆华世丹机械制造有限公司 filed Critical 重庆华世丹机械制造有限公司
Priority to CN 201120070017 priority Critical patent/CN202032066U/en
Application granted granted Critical
Publication of CN202032066U publication Critical patent/CN202032066U/en

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Abstract

The utility model relates to the field of agricultural machinery, in particular to a gearbox which comprises a front cover and a rear cover which are mutually buckled and fixed. The gearbox also comprises a protection hood which surrounds the edges of the front cover and the rear cover and is fixed with the front and the rear covers. As the seam at the buckled position of the front cover and the rear cover is surrounded by the protection hood, the sealing performance of the gearbox is higher, substances such as mud and water cannot easily enter the gearbox, thus the reliability of the gearbox are improved, and the service life of the internal parts are prolonged.

Description

A kind of microtilling machine and gearbox

Technical field

The utility model relates to field of agricultural machinery, more particularly, relates to a kind of gearbox.In addition, the utility model also relates to a kind of microtilling machine that comprises above-mentioned gearbox.

Background technique

Microtilling machine be a kind of be the farm machinery of power plant with small diesel engine or petrol engine because that it has is in light weight, volume is little, simple in structure, easy to operate, for ease of maintenaince, therefore be commonly used.

For the microtilling machine gearbox, can make cylinder iron or the cast of material such as aluminum alloy or die casting form; Can also adopt the processing method of punching press, be about to two block plates punching press formation protecgulum and bonnet respectively, then protecgulum and bonnet are snapped together, at the edge of protecgulum and bonnet several corresponding bolts hole can be set usually, protecgulum and bonnet are fixed together by bolt.In order to guarantee the sealability of gearbox, can between protecgulum and bonnet, sealing gasket be set usually, even so, because have certain distance between two adjacent bolts, so generally can there be the phenomenon of faying surface poor sealing; In addition, after long-term work, loosening phenomenon can appear in lock bolt, and then makes to have certain slit between protecgulum and the bonnet, thereby has further reduced the sealing of microtilling machine gearbox.Obviously, owing to be difficult to guarantee the sealing between microtilling machine gearbox protecgulum and the bonnet, material such as mud, water will enter in the microtilling machine gearbox, and then make the component corrosion such as chain, sprocket wheel of microtilling machine gearbox inside, greatly reduce the reliability of microtilling machine gearbox, the life-span of also having reduced microtilling machine gearbox inner components simultaneously.

Therefore, the sealing that how to improve the microtilling machine gearbox is those skilled in the art's technical issues that need to address.

The model utility content

The purpose of this utility model provides a kind of gearbox, and this gearbox sealing is higher, and then has improved the life-span of the reliability and the inner components of gearbox.

For solving the problems of the technologies described above, the utility model provides following technological scheme:

A kind of gearbox comprises the protecgulum and the bonnet that are fastened mutually, also comprise be enclosed in described protecgulum and bonnet edge and with protecgulum, the fixing protective housing of bonnet.

Preferably, described protective housing has the corresponding locking screw keyhole of first group of bolt hole with described protecgulum and bonnet edge, and described locking screw keyhole and first group of bolt hole all cooperate with first group of threaded fastener.

Preferably, the front panel of described protective housing and rear sidewall all have corresponding locking screw keyhole.

Preferably, described protective housing has the corresponding bolt breach of second group of bolt hole with described protecgulum and bonnet edge, and described second group of bolt hole cooperates with described second group of threaded fastener.

Preferably, described locking screw keyhole and bolt breach are spaced apart.

A kind of microtilling machine comprises above-mentioned any gearbox.

From technique scheme as can be seen, the protecgulum and the bonnet of the gearbox that the utility model provides are fastened mutually, protective housing gets up the surrounded by edges of protecgulum and bonnet, and fix with protecgulum and bonnet, the slit at protecgulum and bonnet fastening place is surrounded by protective housing like this, thereby make the sealability of gearbox improve, material such as mud, water just is not easy to enter in the gearbox like this, thereby has improved the life-span of the reliability and the inner components of gearbox.

Description of drawings

The structural representation of the gearbox that Fig. 1 is provided for the utility model embodiment;

The exploded view of the gearbox that Fig. 2 is provided for the utility model embodiment;

The structural representation of the protective housing that Fig. 3 is provided for the utility model embodiment.

Embodiment

The purpose of this utility model provides a kind of gearbox, and this gearbox sealing is higher, and then has improved the life-span of the reliability and the inner components of gearbox.

Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is carried out clear, complete description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, all other embodiments that those of ordinary skills are obtained under the prerequisite of not making creative work belong to protection domain of the present utility model.

See also Fig. 1 and Fig. 2, the structural representation of the gearbox that Fig. 1 is provided for the utility model embodiment; The exploded view of the gearbox that Fig. 2 is provided for the utility model embodiment.

The gearbox that the utility model embodiment is provided comprises protecgulum 1, bonnet 3 and protective housing 2; General protecgulum 1 and bonnet 3 process by the mode of punching press, and protecgulum 1 and bonnet 3 are fastened mutually then; The fastening place that protective housing 2 is arranged on protecgulum 1 and bonnet 3 is the edge of protecgulum 1 and bonnet 3, surrounded by edges with protecgulum 1 and bonnet 3, and it is fixing with protecgulum 1 and bonnet 3, the slit at protecgulum 1 and bonnet 3 fastening places is surrounded by protective housing 2 like this, thereby improved the sealability of gearbox, material such as mud, water just is not easy to enter in the gearbox like this, thereby has improved the life-span of the reliability and the inner components of gearbox.

In preferred version, protective housing 2 passes through bolt with the edge of protecgulum 1 and bonnet 3, the edge that is specially protecgulum 1 and bonnet 3 is respectively arranged with corresponding first group of bolt hole 11 and first group of bolt hole 31, as shown in Figure 3, protective housing 2 is provided with the locking screw keyhole 21 corresponding with first group of bolt hole 11 and first group of bolt hole 31, first group of threaded fastener is plugged in first group of bolt hole 11, in first group of bolt hole 31 and the corresponding locking screw keyhole 21, be tightened then and realize the fixing of protective housing 2 and protecgulum 1 and bonnet 3, adopt first group of threaded fastener fixed blade guard 2 can be so that install, dismounting is just convenient, simply.In order to make the fixing more reliable of protective housing 2 and protecgulum 1 and bonnet 3, those skilled in the art can also all be provided with corresponding locking screw keyhole 21 on the front panel of protective housing 2 and rear sidewall.

Normal conditions, protective housing 2 is by punch process, for quality and the performance that guarantees protective housing 2, those skilled in the art tends to select the cold-rolling steel-plate punch protective housing 2 of good moldability, protective housing 2 such as just is not easy to crack at phenomenon in the impact briquetting process like this, and then has guaranteed the quality of protective housing 2 effectively.

Because protective housing 2 has locking screw keyhole 21, and be to form, so those skilled in the art can carry out corresponding setting to mould, in bar stock cutting by punching, be about to locking screw keyhole 21 and process by punch process, material under then will be tentatively carries out punch process again, and then brake forming.The processing technology of processing locking screw keyhole 21 can improve work efficiency effectively in the time of bar stock cutting by punching, be fit to production in batch, and processing technology is comparatively simple, but, therefore cannot say for sure to demonstrate,prove the coaxality of corresponding locking screw keyhole 21 on protective housing 2 front panels and the rear sidewall owing to the 21 back bending ram moulding of subpunch locking screw keyhole.

In view of this, those skilled in the art can be provided with bolt breach 22 on protective housing 2, bolt breach 22 is corresponding with second group of bolt hole 12 and second group of bolt hole 32 at protecgulum 1 and bonnet 3 edges respectively, second group of threaded fastener is plugged in second group of bolt hole 12 and the second group of bolt hole 32, is tightened then.Because protective housing 2 has locking screw keyhole 21, so can guarantee the protective housing 2 and the edge of protecgulum 1 and bonnet 3 fixes, and then the sealability of assurance gearbox, in that being set on the basis of the foregoing description, bolt breach 22 can when guaranteeing the gearbox sealability, avoid second group of threaded fastener effectively like this, the quantity of the feasible threaded fastener that cooperates with protective housing 2 reduces, promptly need the quantity of the locking screw keyhole 21 processed just less, thereby reduced the difficulty of processing of protective housing 2, and then reduced the processing cost of protective housing 2.

Can also locking screw keyhole 21 and bolt breach 22 is spaced apart, so both can guarantee protective housing 2 and protecgulum 1 and bonnet fixing compact well, can also reduce the processing cost of protective housing 2, and can be so that protective housing 2 fitting operations are simple.

In the foregoing description, protective housing 2 can all surround the edge of protecgulum 1 and bonnet 3, and this moment is for easy to process, simple, and what generally the length of protective housing 2 is provided with is shorter, can use a plurality of protective housings 2 that the edge of protecgulum 1 and bonnet 3 is all surrounded.Usually the edge significant points that needs only protecgulum 1 and bonnet 3 surrounds the sealability that promptly can guarantee gearbox.

The utility model also provides a kind of microtilling machine, and this microtilling machine comprises the described gearbox of the various embodiments described above, and the other parts of the microtilling machine that is provided for above-mentioned the utility model embodiment can be with reference to prior art, and this paper is not launching narration.

To the above-mentioned explanation of the disclosed embodiments, be that related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will accord with principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (6)

1. a gearbox comprises the protecgulum and the bonnet that are fastened mutually, it is characterized in that, also comprise be enclosed in described protecgulum and bonnet edge and with protecgulum, the fixing protective housing of bonnet.
2. gearbox according to claim 1, it is characterized in that, described protective housing has the corresponding locking screw keyhole of first group of bolt hole with described protecgulum and bonnet edge, and described locking screw keyhole and first group of bolt hole all cooperate with first group of threaded fastener.
3. gearbox according to claim 2 is characterized in that, the front panel of described protective housing and rear sidewall all have corresponding locking screw keyhole.
4. gearbox according to claim 3 is characterized in that, described protective housing has the corresponding bolt breach of second group of bolt hole with described protecgulum and bonnet edge, and described second group of bolt hole cooperates with described second group of threaded fastener.
5. gearbox according to claim 4 is characterized in that, described locking screw keyhole and bolt breach are spaced apart.
6. a microtilling machine is characterized in that, comprises aforesaid right requirement 1 to 5 each described gearbox.
CN 201120070017 2011-03-16 2011-03-16 Micro-cultivator and gearbox CN202032066U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120070017 CN202032066U (en) 2011-03-16 2011-03-16 Micro-cultivator and gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120070017 CN202032066U (en) 2011-03-16 2011-03-16 Micro-cultivator and gearbox

Publications (1)

Publication Number Publication Date
CN202032066U true CN202032066U (en) 2011-11-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120070017 CN202032066U (en) 2011-03-16 2011-03-16 Micro-cultivator and gearbox

Country Status (1)

Country Link
CN (1) CN202032066U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102162517A (en) * 2011-03-16 2011-08-24 重庆华世丹机械制造有限公司 A gearbox and a small cultivator
CN102705484A (en) * 2012-06-13 2012-10-03 陈相贤 Back-rolling gearbox integrally formed by steel plate for micro-farming machine
CN103104679A (en) * 2012-12-12 2013-05-15 重庆百吉四兴压铸有限公司 Farming machine gear box shell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102162517A (en) * 2011-03-16 2011-08-24 重庆华世丹机械制造有限公司 A gearbox and a small cultivator
CN102705484A (en) * 2012-06-13 2012-10-03 陈相贤 Back-rolling gearbox integrally formed by steel plate for micro-farming machine
CN103104679A (en) * 2012-12-12 2013-05-15 重庆百吉四兴压铸有限公司 Farming machine gear box shell

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111109

Termination date: 20170316