CN102359575A - Speed reducer used for cooling tower - Google Patents
Speed reducer used for cooling tower Download PDFInfo
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- CN102359575A CN102359575A CN2011103208281A CN201110320828A CN102359575A CN 102359575 A CN102359575 A CN 102359575A CN 2011103208281 A CN2011103208281 A CN 2011103208281A CN 201110320828 A CN201110320828 A CN 201110320828A CN 102359575 A CN102359575 A CN 102359575A
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- main shaft
- end cap
- cooling tower
- bearing
- transmission main
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Abstract
The invention relates to a speed reducer used for a cooling tower. The speed reducer used for the cooling tower comprises a box body, a base and a transmission main shaft, wherein the base is flange-shaped and is connected with the box body detachably; the top of the base serves as an upper bearing seat; a ball bearing is arranged in the upper bearing seat; the upper bearing seat is fixed by an upper end cover; the bottom of the base serves as a lower bearing seat; a lower bearing is arranged in the lower bearing seat; the lower bearing seat is fixed by a lower end cover; the transmission main shaft is installed and positioned in the box body of the speed reducer through the upper ball bearing and the lower bearing; and the upper end and the lower end of the transmission main shaft penetrate out of the box body, wherein the lower end of the transmission main shaft is connected with a V-belt pulley and the upper end of the transmission main shaft is connected with a fan hub. In the speed reducer used for the cooling tower, the box body, the upper bearing seat and the lower bearing seat are in an integrated casting structure, and the upper bearing seat and the lower bearing seat have very good coaxiality, so that the installation and the self-centering of the upper bearing and the lower bearing are facilitated; therefore, the accuracy of the center position of the main shaft of the speed reducer is ensured; vibration and abnormal abrasion caused by the eccentricity of the main shaft are reduced; and the safe and stable operation of the speed reducer is ensured.
Description
Technical field
The present invention relates to a kind of used for cooling tower retarder, the retarder that particularly a kind of belt transmits.
Background technique
Mostly the cooling tower reducer shell that uses at present is combined assembly structure; Its structure more complicated because be mostly that shell is installed up and down, makes metal (upper seat relative position difficult to guarantee; Particularly the coaxality at metal (upper seat center is difficult to control; Thereby influence the accuracy of the central position of retarder main shaft, under this working condition, move retarder, because of the inaccuracy even the off-centre of the central position of main shaft; The wearing and tearing that will reduce transmission efficiency greatly, strengthen running noises, quickening main shaft axle journal and bearing, the service life of reduction retarder.In this case; General in order to improve the centering performance of its metal (upper seat; Must change the validity of the cooperation position of assembly through the machining accuracy that improves last lower shell body, so production and processing technology is complicated, processing request is high, will increase processing cost greatly like this.Simultaneously,, installing and during maintenance, installing each time and all will put when adjusting main shaft and adjust, aligning the coaxality at its center, increasing installation and maintenance work difficulty and operating time the metal (upper seat because it is a fabricated structure.
In addition, because its fabricated structure, the sealing between the last lower shell body also is the difficult problem of a long-term puzzlement always; Sealing the bad lubricant grease that will cause outwards reveals; Gradually reduce the lubricant grease amount, it is indoor that outer water can get into lubricating grease, has a strong impact on lubrication effect.Because axial fan hub endoporus and reducer output shaft end matching way are cylindrical body; V belt wheel endoporus and reducer input shaft end coupling are cylindrical body; Difficulty was bigger when above-mentioned this coupling was installed at the scene; Will lay with hammer, and will come out axial fan hub with La Mala will maintain retarder the time, workload is very big; Institute's band instrument is also many, more than all be the drawback that present cooling tower retarder exists.
Summary of the invention
The object of the invention be to provide a kind of guarantee safe operation and can long service life, installation, used for cooling tower retarder easy to maintenance.
The present invention includes casing, base and transmission main shaft, base is the flange plate-like, with casing for removably connecting; The top of base is as upper bearing bracket, in load onto ball bearing, and fix by upper end cap; The bottom of base is as step, in load bearing, and fix by lower end cap; In reduction case, its upper/lower terminal passes casing to transmission main shaft through last ball bearing, following combination bearing installing and locating, and wherein the lower end links to each other with the V belt wheel, and the upper end is used to connect axial fan hub.
In order to improve the ability that lower bearing bears the retarder thrust load, lower bearing of the present invention is made up with thrust-bearing by ball bearing down and forms, and can guarantee that like this present invention still can proper functioning under the situation of a damage of bearings therein.
In order to strengthen sealability of the present invention, use the skeleton rubber oil sealing sealing between upper end cap and the transmission main shaft, seal with the lower skeleton rubber oil sea between lower end cap and the transmission main shaft; Also be respectively equipped with sealing gasket and lower seal pad between upper and lower end cap and the casing.
In order further to improve water-proof performance of the present invention, the top of upper end cap also is provided with water retaining cover, and this water retaining cover is sleeved on the transmission main shaft.
For the ease of carrying the present invention, also be provided with suspension ring on the base.
For the ease of packing into and dismantle V belt wheel and axial fan hub,, it is frustoconic shape that the two ends of transmission main shaft are designed to truncated cone.
In use fully lubricated in order to guarantee the present invention, upper end cap one side is provided with the last priming cup that is used to refuel, and opposite side is provided with the overflow oil nozzle that is used to control volume read-out; One side of lower end cap is provided with the following priming cup that is used to refuel, and opposite side is provided with the underflow oil nozzle that is used to control volume read-out.The effect of upper and lower oil spilling mouth is to confirm whether lubricant oil adds and fill it up with, and filling it up with the unnecessary lubricant oil in back can overflow from upper and lower oil spilling mouth.
The present invention has following advantage:
1, casing of the present invention and the as a whole casting structure of metal (upper seat; The relative position of metal (upper seat and the precision of size can be controlled by machining; Can guarantee that like this metal (upper seat has good coaxality through the precision of machining; Help the installation and the automatic centering of metal (upper; Thereby guarantee the accuracy of the central position of retarder main shaft, reduced vibration that off-centre caused and heel and toe wear because of main shaft, the safety and steady operation and the operation that help retarder prolong working life.
2, empty flange plate type structure in base of the present invention adopts, casing then is
OneThe integral body of individual hollow is the tubulose steelframe of waist drum shape, has so both guaranteed that whole retarder has enough strength and stiffness, and the consumption that reduces material has again reduced its weight and cost of production, and practicability is good.
3, simple in structure, convenient for installation and maintenance, when installation and maintenance, only need that metal (upper is pressed into bearing support respectively and get final product, need not adjust the center coaxality that just can automatically guarantee two bearings more separately.
4, after upper bearing (metal) and lower bearing are pressed into bearing support, bear the retarder radial pressure jointly; Because lower bearing is made up with thrust-bearing by following ball bearing and forms, can guarantee like this under the situation of a damage of bearings therein that the present invention still can proper functioning, increased the operational reliability and the Security of retarder.
Description of drawings
Fig. 1 is the schematic representation of structure of the present invention.
The structural representation of Fig. 2 upper end cap.
Fig. 3 is the structural representation of lower end cap.
The flow direction of arrow is represented among Fig. 2 and Fig. 3 when being lubricating oil filling lubrication flow.
Embodiment
As shown in Figure 1, used for cooling tower retarder of the present invention comprises casing 32, base 24 and transmission main shaft 26.Base 24 is the flange plate-like; Which is provided with the suspension ring 17 that are used for convenient carrying; And form with casing 32 through hex head bolt 9, hexagon nut 12 and to removably connect, wherein between hex head bolt and the casing 32, be equipped with plain washer 10 and spring washer 12 between hexagon nut 12 and the base 24.
The top of base 24 is as upper bearing bracket, in load onto ball bearing 8, the upper end cap 28 that is used for last ball bearing 8 is positioned is fixed on the top of casing 32 through hex head bolt 5, also is provided with spring washer 6 and plain washer 7 between hex head bolt 5 and the upper end cap 28.The top of aforementioned upper end cap 28 also is provided with water retaining cover 29, and this water retaining cover 29 is sleeved on the transmission main shaft 26.The bottom of base 24 is as step, in load bearing 13, the lower end cap 23 that is used for that lower bearing 13 is positioned is fixed on the bottom of casing 32 through hex head bolt 14.Go back spring washer 15 and plain washer 16 between hex head bolt 14 and the casing 32.Aforementioned lower bearing 13 is combination bearings, by ball bearing 13-1 and thrust-bearing 13-2 combine down.
In reduction case 32, its upper/lower terminal passes casing 32 to transmission main shaft 26 through last ball bearing 8, lower bearing 13 installing and locating.The lower end of transmission main shaft 26 links to each other with V belt wheel 22 through hex head bolt 18, V belt wheel pressing plate 21, is provided with spring washer 19 and plain washer 20 between hex head bolt 18 and the V belt wheel pressing plate 21, is provided with O shape circle 17 between V belt wheel pressing plate 21 and the axial fan hub.Transmission initiatively 26 upper end is used to connect axial fan hub 30 as power intake of the present invention when specifically using; And fixing through blower fan pressing plate 31, hex head bolt 1 and axial fan hub 30, also be provided with plain washer 2 and O type circle 3 between above-mentioned blower fan pressing plate 31 and the axial fan hub 30.
Use 4 sealings of skeleton rubber oil sealing between upper end cap 28 and the transmission main shaft 26, seal with lower skeleton rubber oil sea 33 between lower end cap 23 and the transmission main shaft 26; Be respectively equipped with sealing gasket 27 and lower seal pad 34 between upper end cap 28, lower end cap 23 and the casing 32.
As shown in Figure 2, upper end cap 28 1 sides are provided with the last priming cup 28-1 that is used for lubricating oil filling, and opposite side is provided with the overflow oil nozzle 28-2 that is used to control volume read-out.
As shown in Figure 3, a side of lower end cap 23 is provided with the following priming cup 23-1 that is used for lubricating oil filling, and opposite side is provided with the underflow oil nozzle 23-2 that is used to control volume read-out.
Upward ball bearing 8 of the present invention is with following ball bearing 13-1 is with monolateral ring structure; They form the lubricating grease chamber of sealing respectively with upper end cap 28, upper skeleton rubber oil sea 4 and lower end cap 23, lower skeleton rubber oil sea 33; And through last priming cup 28-1 and down priming cup 23-1 add lubricant oil, abundant with lubricating of the lower bearing 13 that guarantees ball bearing 8 and form by ball bearing 13-1 down and thrust-bearing 13-2.
Claims (7)
1. a used for cooling tower retarder is characterized in that comprising casing (32), base (24) and transmission main shaft (26), and base (24) is the flange plate-like, with casing (32) for removably connecting; The top of base (24) is as upper bearing bracket, in load onto ball bearing (8), and fixing by upper end cap (28); The bottom of base (24) is as step, in load bearing (13), and fixing by lower end cap (23); In reduction case (32), its upper/lower terminal passes casing (32) to transmission main shaft (26) through last ball bearing (8), lower bearing (13) installing and locating, and wherein the lower end links to each other with V belt wheel (22), and the upper end is used to connect axial fan hub (30).
2. used for cooling tower retarder as claimed in claim 1 is characterized in that said lower bearing (13) is a combination bearing, by ball bearing (13-1) and thrust-bearing (13-2) combine down.
3. according to claim 1 or claim 2 used for cooling tower retarder; It is characterized in that using between upper end cap (28) and the transmission main shaft (26) skeleton rubber oil sealing (4) sealing, seal with lower skeleton rubber oil sea (33) between lower end cap (23) and the transmission main shaft (28); Be respectively equipped with sealing gasket (27) and lower seal pad (34) between upper end cap (28), lower end cap (23) and the casing (32).
4. according to claim 1 or claim 2 used for cooling tower retarder is characterized in that the top of upper end cap (28) also is provided with water retaining cover (29), and this water retaining cover (29) is sleeved on the transmission main shaft (26).
5. according to claim 1 or claim 2 used for cooling tower retarder is characterized in that base (24) is provided with the suspension ring (17) that are used for convenient carrying.
6. according to claim 1 or claim 2 used for cooling tower retarder is characterized in that upper end cap (28) one sides are provided with the last priming cup (28-1) that is used to refuel, and opposite side is provided with overflow oil nozzle (28-2); One side of lower end cap (23) is provided with the following priming cup (23-1) that is used to refuel, and opposite side is provided with underflow oil nozzle (23-2).
7. according to claim 1 or claim 2 used for cooling tower retarder is characterized in that the two ends of said transmission main shaft (26) are frustoconic shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103208281A CN102359575A (en) | 2011-10-21 | 2011-10-21 | Speed reducer used for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103208281A CN102359575A (en) | 2011-10-21 | 2011-10-21 | Speed reducer used for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102359575A true CN102359575A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103208281A Pending CN102359575A (en) | 2011-10-21 | 2011-10-21 | Speed reducer used for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102359575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829164A (en) * | 2012-09-13 | 2012-12-19 | 武汉船用机械有限责任公司 | Transmission device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2495854Y (en) * | 2001-02-23 | 2002-06-19 | 伍健国 | Speed reducer used for cooling power |
| CN2646481Y (en) * | 2003-09-28 | 2004-10-06 | 广州马利新菱冷却塔有限公司 | Reducer casing for cooling tower |
| US20090235782A1 (en) * | 2006-09-29 | 2009-09-24 | Honda Motor Co., Ltd. | Transmission |
| CN101713412A (en) * | 2009-12-10 | 2010-05-26 | 中国科学院电工研究所 | Intelligent driving device for fan of cooling tower |
| CN201593603U (en) * | 2010-01-25 | 2010-09-29 | 杭州嘉诚机械有限公司 | Shaft end sealing structure for speed reducer |
| CN102105725A (en) * | 2008-07-23 | 2011-06-22 | 索尤若驱动有限及两合公司 | Transmission |
| CN202484259U (en) * | 2011-10-21 | 2012-10-10 | 南京大洋冷却塔股份有限公司 | Speed reducer for cooling tower |
-
2011
- 2011-10-21 CN CN2011103208281A patent/CN102359575A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2495854Y (en) * | 2001-02-23 | 2002-06-19 | 伍健国 | Speed reducer used for cooling power |
| CN2646481Y (en) * | 2003-09-28 | 2004-10-06 | 广州马利新菱冷却塔有限公司 | Reducer casing for cooling tower |
| US20090235782A1 (en) * | 2006-09-29 | 2009-09-24 | Honda Motor Co., Ltd. | Transmission |
| CN102105725A (en) * | 2008-07-23 | 2011-06-22 | 索尤若驱动有限及两合公司 | Transmission |
| CN101713412A (en) * | 2009-12-10 | 2010-05-26 | 中国科学院电工研究所 | Intelligent driving device for fan of cooling tower |
| CN201593603U (en) * | 2010-01-25 | 2010-09-29 | 杭州嘉诚机械有限公司 | Shaft end sealing structure for speed reducer |
| CN202484259U (en) * | 2011-10-21 | 2012-10-10 | 南京大洋冷却塔股份有限公司 | Speed reducer for cooling tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829164A (en) * | 2012-09-13 | 2012-12-19 | 武汉船用机械有限责任公司 | Transmission device |
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Application publication date: 20120222 |