CN201566620U - Cast gear box for locomotive - Google Patents
Cast gear box for locomotive Download PDFInfo
- Publication number
- CN201566620U CN201566620U CN2009201083970U CN200920108397U CN201566620U CN 201566620 U CN201566620 U CN 201566620U CN 2009201083970 U CN2009201083970 U CN 2009201083970U CN 200920108397 U CN200920108397 U CN 200920108397U CN 201566620 U CN201566620 U CN 201566620U
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- China
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- nowel
- cast
- hole
- top box
- gear
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Abstract
The utility model relates to a cast gear box for a locomotive, which comprises an upper box and a lower box and is characterized in that the upper box and the lower box are cast and formed; an upper box half gear hole, an upper box motor connecting seat, a hoisting seat, a gear observation window and a vent hole are cast on the upper box; the vent hole is provided with a vent hood; a lower box half gear hole, a lower box motor connecting seat, an oil filling hole and an oil level observation hole are cast on the lower box; rib plates are cast around the upper box half gear hole, the upper box motor connecting seat, the lower box half gear hole and the lower box motor connecting seat; the mould assembling surfaces of the upper box and the lower box are respectively cast with bosses; the bosses are provided with connecting holes; and connecting pieces pass through the connecting holes. In the utility model, each hole site and connecting seat are directly cast on the body of the cast gear box, and thereby, the disadvantage that the traditional welding parts are unfirm is solved; moreover, the rib plates or circular beads are cast on the complicated parts of the box body, which are easy to crack, and thereby, the stress concentration and the box body deformation which are brought by welding are avoided. The utility model can be widely applied to the gear boxes of railway locomotives.
Description
Technical field
The utility model relates to a kind of gear case, particularly about a kind of locomotive cast gear case.
Background technology
Now, easterly type and Shaoshan type locomotive occupy very big proportion in the China Railway locomotive, are the foundation of state-owned railroads lifeblood.Installing locomotive gear cases is one of vitals of this vehicle, is to guarantee traction electric machine miniature gears and the lubricated critical component of driving wheel big gear wheel engagement.Present domestic electric locomotive and diesel locomotive nearly all adopt the gear case of welded-steel plate construction.This gear case manufacturing process is simpler, but because the influence of plank frame, Seal Design is subjected to certain restriction, can not do finely, and main performance is exactly leakage of oil and gets rid of oil.This fault not only can cause the gear case grease to waste in a large number, and traveling portion is unclean, strengthens the bus attendant work capacity, and can cause the grease deficiency, and the gear teeth of big gear wheel are overheated, beat tooth.If installing locomotive gear cases cracks, grease can all spill in the gear case, causes the big gear wheel damage, and the gear teeth burning of miniature gears is scrapped.Gear case gets rid of oil when serious, and the contact wear of gear and axletree is also the most serious, can cause and cut a phenomenon generation, influences the normal operation of locomotive, and consequence is hardly imaginable.
In addition, because gear case and motor have connected and composed motor driver, motor driver is many to adopt semimounted to be connected with framework, make gear case stressed more complicated in the locomotive driving process, gear case steel plate local load is excessive, occurs the steel plate crackle easily, and because link all is welded on the casing, material does not match and factor such as welding process defective the situation that usually causes welding spiral shell seat to be broken in the welding.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of being applicable on railway DF type and the SS type locomotive, the employing foundry technique is made, and has solved that the existing product weldment connects insecure and leakage of oil, gets rid of oil, the locomotive cast gear case of shortcomings such as rhegma easily.
For achieving the above object, the utility model is taked following technical scheme: a kind of locomotive cast gear case, it comprises a top box and a nowel, it is characterized in that: described top box and nowel are respectively Casting Parts, and be cast with top box half gear hole on the described top box, top box motor Connection Block, the lifting seat, the gear observation window, air extractor vent, on the described air extractor vent vent hood is installed, be cast with nowel half gear hole on the described nowel, nowel motor Connection Block, oil hole, the draining hole, oil level glass, described top box half gear hole, top box motor Connection Block, nowel half gear hole, be cast with many gussets around the nowel motor Connection Block, the mould assembling face place of described top box and nowel is cast with respectively and is connected boss, described boss is provided with connecting bore, passes described connecting bore and is provided with the locking attaching parts.
Described top box and nowel wall thickness are 6～7mm.The casing of described top box half gear hole, top box motor Connection Block, lifting seat, gear observation window, air extractor vent and described top box is a round-corner transition; The casing of described nowel half gear hole, nowel motor Connection Block, oil hole, oil level inspection door and described nowel is a round-corner transition.
After described top box and the nowel mould assembling, be provided with rubber seal in the gear hole that described top box half gear hole and nowel half gear hole are formed.
Described boss stretches out described top box and nowel plane 10～40mm, and the connecting bore that is provided with on the described boss is a tapped bore, passes described tapped bore and is provided with bolt connection piece; The connecting bore that is provided with on the perhaps described boss is a pin-and-hole, passes described pin-and-hole and is provided with the locating dowel pin attaching parts.
The utility model is owing to take above technical scheme, and it has the following advantages: 1, the utility model adopts tensile strength and the higher spheroidal graphite iron of impact toughness to come the cast gear case, has solved the unstable shortcoming of existing product weldment; Gear case connects axletree bearing shell place, adopts rubber seal to substitute the felt seal ring, has solved the problem that oil is got rid of in the gear case leakage of oil.2, the utility model directly casts out position, various hole and Connection Block on casing, one-body molded, and water at the labyrinth position that rhegma appears in casing easily and to cast out gusset or fillet, compare the gear case of conventional steel plates structure, the problems such as stress concentration, box deformation and connection dimension deviation of having avoided welding to bring have increased intensity.3, the utility model has also increased devices such as vent hood, oil level glass, for big section operation locomotive provides safety control.4, the utility model is cast as 10～40mm boss at last nowel mould assembling face place, connects with bolt or locating dowel pin, has increased the rigidity of casing when ensureing leak tightness, has also strengthened absorbing simultaneously.5, the utility model is under the situation that has increased the casing wall thickness, and utilization Computerized three-dimensional simulation installation site by structure optimization constantly, has ensured the safety distance of gear and tank wall and the casing outside and wheel rim and motor.The utility model had both had that mechanical strength height, dynamic ductility are good, the characteristics of good airproof performance, the package assembly that can meet former locomotive gear casing again, but also even better at aspects such as safety and economy, can be widely used on railway DF type and the SS type locomotive gear case.
Description of drawings
Fig. 1 is the structural representation of the utility model top box and nowel zoarium
Fig. 2 is the structural representation of the utility model top box
Fig. 3 is the structural representation of the utility model nowel
Fig. 4 is the utility model vent hood structural representation
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model has changed the structure that conventional gearbox steel plate main body adds the local welding part, concentrates in the utility model and has adopted the big foundry goods to add pin and bolted structure.The utility model comprises top box 1 and 2 liang of big foundry goods of nowel, and foundry goods selects for use mechanical property excellence, cheap low temperature resistant ductile cast iron material to make, and the casing wall thickness has been increased to 6～7mm by the 4mm of original steel plate structure.
As Fig. 2, shown in Figure 3, in the utility model, directly be cast with each position, hole and Connection Block on top box 1 and the nowel 2, as on top box 1, directly be cast with top box half gear hole 11, top box motor Connection Block 12, lifting seat 13, gear observation window 14 etc.; On nowel 2, directly be cast with nowel half gear hole 21, nowel motor Connection Block 22, oil hole 23, draining hole 24 etc.In existing technology, top box and nowel are owing to adopt steel plate structure, reprocess on steel plate in the position, hole, each connects pedestal as above all need adopt additional weldment in positions such as case motor Connection Block 12, lifting seat 13, gear observation window 14, nowel motor Connection Block 22.This structure causes stress concentration easily, and steel plate is cracked, and weldment is also insecure in addition.In the utility model, the one-step casting moulding is all adopted at these easy rhegma positions, and around position, hole and pedestal, as having cast many gussets 15 around top box half gear hole 11 and the top box motor Connection Block 12, around nowel half gear hole 21 and nowel motor Connection Block 22, many gussets 25 have been cast, because of these gussets and casing are cast into one, compare welding gusset intensity and strengthen many.
The difference of the utility model and prior art also is: on top box 1, also increase and cast air extractor vent 16, as shown in Figure 4, vent hood 17 is installed on air extractor vent 16, have filtering net 18 on the vent hood 17, make air extractor vent 16 both possess ventilatory function, can avoid sand and dust to enter casing again.On nowel 2, also increase and cast oil level glass 26, so that observe the situation of gear lubrication at any time.
In order to improve Joint strenght, except being cast with, the two ends at top box 1 and nowel 2 are connected boss, be used to connect outside two the casees, also be cast with convex platform 19 and lower bulge 27 respectively in sealings place such as mould assembling face of top box 1 and nowel 2, convex platform 19 and lower bulge 27 stretch out the about 10～40mm in casing plane.Convex platform 19 and lower bulge 27 are provided with a plurality of tapped bore or pin-and-hole.As shown in Figure 1, when two casees mould assembling, convex platform 19 and lower bulge 27 are involutory, and connect by bolt or locating dowel pin, make top box and nowel engage closely, have ensured leak free reliability and durability, have also strengthened absorbing simultaneously.
The utility model makes full use of the cast structure advantage, has strengthened knuckle at the position that easily cracks of foundry goods, such as at gear hole, motor Connection Block etc. and casing bonded assembly position, strengthens knuckle, and its rigidity is strengthened greatly.In gear hole, connect axletree bearing shell place, adopt rubber seal to substitute the felt seal ring, solved the problem that oil is got rid of in the gear case leakage of oil.
In sum, the utility model adopts tensile strength and the higher foundry goods of impact toughness, has solved the unstable shortcoming of existing product weldment.On casing, directly cast out each position, hole and Connection Block, and water at the position that rhegma appears in casing easily and to cast out gusset or fillet, compare the welded structure of conventional steel plates, avoided the problems of bringing such as stress concentration, box deformation and connection dimension deviation.The utility model has also increased vent hood, oil level inspection door etc., for big section operation locomotive provides safety control.The place is cast as 10～40mm boss at last nowel mould assembling face, is connected with locating dowel pin with bolt, has increased the rigidity of casing when ensureing leak tightness.
Claims (9)
1. locomotive cast gear case, it comprises a top box and a nowel, it is characterized in that: described top box and nowel are respectively Casting Parts, and be cast with top box half gear hole on the described top box, top box motor Connection Block, the lifting seat, the gear observation window, air extractor vent, on the described air extractor vent vent hood is installed, be cast with nowel half gear hole on the described nowel, nowel motor Connection Block, oil hole, the draining hole, oil level glass, described top box half gear hole, top box motor Connection Block, nowel half gear hole, be cast with many gussets around the nowel motor Connection Block, the mould assembling face place of described top box and nowel is cast with respectively and is connected boss, described boss is provided with connecting bore, passes described connecting bore and is provided with the locking attaching parts.
2. a kind of locomotive cast gear case as claimed in claim 1 is characterized in that: described top box and nowel wall thickness are 6～7mm.
3. a kind of locomotive cast gear case as claimed in claim 1 is characterized in that: the casing of described top box half gear hole, top box motor Connection Block, lifting seat, gear observation window, air extractor vent and described top box is a round-corner transition; The casing of described nowel half gear hole, nowel motor Connection Block, oil hole, oil level glass and described nowel is a round-corner transition.
4. a kind of locomotive cast gear case as claimed in claim 2 is characterized in that: the casing of described top box half gear hole, top box motor Connection Block, lifting seat, gear observation window, air extractor vent and described top box is a round-corner transition; The casing of described nowel half gear hole, nowel motor Connection Block, oil hole, oil level glass and described nowel is a round-corner transition.
5. as claim 1 or 2 or 3 or 4 described a kind of locomotive cast gear casees, it is characterized in that: after described top box and the nowel mould assembling, be provided with rubber seal in the gear hole that described top box half gear hole and nowel half gear hole are formed.
6. as claim 1 or 2 or 3 or 4 described a kind of locomotive cast gear casees, it is characterized in that: described boss stretches out described top box and nowel plane 10～40mm, the connecting bore that is provided with on the described boss is a tapped bore, and the attaching parts that passes described tapped bore setting is a bolt.
7. a kind of locomotive cast gear case as claimed in claim 5 is characterized in that: described boss stretches out described top box and nowel plane 10～40mm, and the connecting bore that is provided with on the described boss is a tapped bore, and the attaching parts that passes described tapped bore setting is a bolt.
8. as claim 1 or 2 or 3 or 4 described a kind of locomotive cast gear casees, it is characterized in that: described boss stretches out described top box and nowel plane 10～40mm, the connecting bore that is provided with on the described boss is a pin-and-hole, and the attaching parts that passes described pin-and-hole setting is a locating dowel pin.
9. a kind of locomotive cast gear case as claimed in claim 5 is characterized in that: described boss stretches out described top box and nowel plane 10～40mm, and the connecting bore that is provided with on the described boss is a pin-and-hole, and the attaching parts that passes described pin-and-hole setting is a locating dowel pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201083970U CN201566620U (en) | 2009-06-04 | 2009-06-04 | Cast gear box for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201083970U CN201566620U (en) | 2009-06-04 | 2009-06-04 | Cast gear box for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201566620U true CN201566620U (en) | 2010-09-01 |
Family
ID=42658907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201083970U Expired - Fee Related CN201566620U (en) | 2009-06-04 | 2009-06-04 | Cast gear box for locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201566620U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498909A (en) * | 2013-10-21 | 2014-01-08 | 南车株洲电力机车有限公司 | Gear case for rail transit vehicle |
| CN104675964A (en) * | 2013-11-29 | 2015-06-03 | 北京南口轨道交通机械有限责任公司 | Gear box of meter-gage locomotive |
| CN105909772A (en) * | 2016-06-22 | 2016-08-31 | 安徽松科信息科技有限公司 | Reducer for industrial robot |
-
2009
- 2009-06-04 CN CN2009201083970U patent/CN201566620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498909A (en) * | 2013-10-21 | 2014-01-08 | 南车株洲电力机车有限公司 | Gear case for rail transit vehicle |
| CN104675964A (en) * | 2013-11-29 | 2015-06-03 | 北京南口轨道交通机械有限责任公司 | Gear box of meter-gage locomotive |
| CN105909772A (en) * | 2016-06-22 | 2016-08-31 | 安徽松科信息科技有限公司 | Reducer for industrial robot |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 102202 Beijing city Changping District South Town Road North South Town West No. 584 No. 585 Patentee after: Beijing Zhongche Nankow Machinery Co. Ltd. Address before: 102202 Beijing city Changping District South Town Road North Beijing Nankou rail transportation machinery limited liability company Patentee before: Beijing NanKou Railway Transit Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20170604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |