CN202484259U - Speed reducer for cooling tower - Google Patents
Speed reducer for cooling tower Download PDFInfo
- Publication number
- CN202484259U CN202484259U CN2011204018345U CN201120401834U CN202484259U CN 202484259 U CN202484259 U CN 202484259U CN 2011204018345 U CN2011204018345 U CN 2011204018345U CN 201120401834 U CN201120401834 U CN 201120401834U CN 202484259 U CN202484259 U CN 202484259U
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- China
- Prior art keywords
- main shaft
- end cap
- bearing
- cooling tower
- transmission main
- Prior art date
- Legal status (The legal status 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 status listed.)
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Abstract
The utility model relates to a speed reducer for a cooling tower, which comprises a box body, a base and a transmission main shaft. 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 and 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. 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. According to the structure of the speed reducer for the cooling tower, the box body, the upper bearing seat and the lower bearing seat adopt an integrated casting structure. The upper bearing seat and the lower bearing seat are good in 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 and the vibration and abnormal abrasion caused by the eccentricity of the main shaft are reduced. The safe and stable operation of the speed reducer is ensured.
Description
Technical field
The utility model 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 utility model purpose be to provide a kind of guarantee safe operation and can long service life, installation, used for cooling tower retarder easy to maintenance.
The utility model comprises casing, base and transmission main shaft, and 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, the lower bearing of the utility model is made up with thrust-bearing by ball bearing down and forms, and can guarantee that like this utility model still can proper functioning under the situation of a damage of bearings therein.
In order to strengthen the sealability of the utility model, 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 the water-proof performance of the utility model, 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 utility model, 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 utility model, 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 utlity model has following advantage:
1, the utility model casing 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 the base of the utility model 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 utility model still can proper functioning, increased the operational reliability and the Security of retarder.
Description of drawings
Fig. 1 is the schematic representation of the structure of the utility model.
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, the described used for cooling tower retarder of the utility model 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.The upper end of transmission active 26 is used to connect axial fan hub 30 as the power intake of the utility model 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.
The last ball bearing 8 and the following ball bearing 13-1 of the utility model are and are 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 |
|---|---|---|---|
| CN2011204018345U CN202484259U (en) | 2011-10-21 | 2011-10-21 | Speed reducer for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204018345U CN202484259U (en) | 2011-10-21 | 2011-10-21 | Speed reducer for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484259U true CN202484259U (en) | 2012-10-10 |
Family
ID=46958685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204018345U Expired - Fee Related CN202484259U (en) | 2011-10-21 | 2011-10-21 | Speed reducer for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359575A (en) * | 2011-10-21 | 2012-02-22 | 南京大洋冷却塔股份有限公司 | Speed reducer used for cooling tower |
-
2011
- 2011-10-21 CN CN2011204018345U patent/CN202484259U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359575A (en) * | 2011-10-21 | 2012-02-22 | 南京大洋冷却塔股份有限公司 | Speed reducer used for cooling tower |
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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: 20121010 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |