CN112178167A - Speed reducer of cooling tower - Google Patents

Speed reducer of cooling tower Download PDF

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Publication number
CN112178167A
CN112178167A CN202011030244.6A CN202011030244A CN112178167A CN 112178167 A CN112178167 A CN 112178167A CN 202011030244 A CN202011030244 A CN 202011030244A CN 112178167 A CN112178167 A CN 112178167A
Authority
CN
China
Prior art keywords
box body
shaft
fixedly connected
cooling tower
bearing
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.)
Pending
Application number
CN202011030244.6A
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Chinese (zh)
Inventor
张育峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing City Bishan District Aihua Machinery Co ltd
Original Assignee
Chongqing City Bishan District Aihua Machinery Co ltd
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 Chongqing City Bishan District Aihua Machinery Co ltd filed Critical Chongqing City Bishan District Aihua Machinery Co ltd
Priority to CN202011030244.6A priority Critical patent/CN112178167A/en
Publication of CN112178167A publication Critical patent/CN112178167A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/004—Sealing; Insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/038—Gearboxes for accommodating bevel gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02026—Connection of auxiliaries with a gear case; Mounting of auxiliaries on the gearbox

Abstract

This scheme relates to the technical field of cooling tower speed reducer, concretely relates to cooling tower speed reducer. The automatic gluing device comprises a box body, an input shaft, a main shaft and a motor shaft, wherein the input shaft, the main shaft and the motor shaft are arranged in the box body, the box body is composed of an input box body and a main box body, the main box body is at least provided with two automatic gluing devices, each automatic gluing device comprises a threaded blind hole formed in the main box body, a sealing glue bag arranged in the threaded blind hole, and a through hole and a bolt which are communicated with joint surfaces of all components are formed in the threaded blind hole, the threaded blind hole is matched with the bolt, the main box body and the input box body are fixedly connected through the bolt and the threaded blind hole, and when the automatic gluing device is assembled on a machine, the joint of the sealing components and the box body.

Description

Speed reducer of cooling tower
Technical Field
This scheme relates to the technical field of cooling tower speed reducer, concretely relates to cooling tower speed reducer.
Background
The cooling tower speed reducer is mainly used for driving the fan to rotate, the number of internal structure gears and mechanical mechanisms in direct contact is large, loss is large, and lubricating oil plays a great role at the moment. The speed reducer in the existing market is poor in sealing performance, after lubricating oil is smeared, the lubricating oil leaks due to high-speed rotation of a machine, the lubricating oil needs to be added repeatedly, the manual workload is increased, and great waste is caused.
The chinese utility model patent publication No. CN00223306.1 discloses a flip-chip low-noise cooling tower speed reducer, the speed reducing mechanism is a pair of hypoid conical driving and driven gears adopting curved tooth profile, wherein the axes of the driving and driven gears are offset to be 90 ° out-of-plane vertical; the motor shaft and the driving gear are connected through the coupling sleeve and the flat key in the sleeve to transmit torque to the driven gear, the driven gear is connected with the output shaft through the bolt to transmit power to the output shaft, and the motor shaft and the driving gear are arranged in the cooling tower in an inverted mode, so that the problem of high noise is solved.
Disclosure of Invention
This scheme provides a cooling tower speed reducer to solve the not good, the easy problem that spills of lubricating oil of leakproofness that proposes in the above-mentioned background art.
In order to achieve the purpose, the scheme provides a cooling tower speed reducer which comprises a box body, an input shaft, a main shaft and a motor shaft, wherein the input shaft, the main shaft and the motor shaft are arranged in the box body, a spiral bevel gear is arranged at one end of the input shaft, bevel gears are arranged on the main shaft and meshed with the bevel gears, a motor gear is arranged on the motor shaft, a connecting gear is arranged at one end of the input shaft, the motor gear is meshed with the connecting gear, the box body is composed of an input box body and a main box body, the input box body is fixedly connected with a connecting disc, the input box body is fixedly connected with a bottom plate and a bearing cover, the bearing cover is fixedly connected with a bearing seat, the main box body is at least provided with two automatic gluing devices, and each automatic gluing device comprises a threaded blind hole formed in the main box body, The screw thread blind hole is internally provided with a through hole and a bolt which are communicated with the joint surface of each component, the sealant bag is internally provided with sealant, the screw thread blind hole is matched with the bolt, and the main box body and the input box body are fixedly connected through the bolt and the screw thread blind hole.
The principle of the scheme is as follows: when the cooling tower speed reducer works, a motor shaft is meshed with a connecting gear at one end of an input shaft through a motor gear to drive the input shaft to rotate, and the input shaft is meshed with bevel gears on a main shaft through spiral bevel gears at the other end to drive the main shaft to rotate. When the cooling tower speed reducer is assembled, an automatic gluing device is arranged on the box body and comprises a threaded blind hole, a sealing rubber bag, a through hole and a bolt, the sealing rubber bag is tough, the sealing rubber bag is filled with sealing rubber, the surface of the sealing rubber bag is in a tight state, the sealing rubber bag is used for storing the sealing rubber, and the sealing rubber is prevented from flowing outwards when the bolt is not screwed into the sealing rubber bag and is prevented from flowing outwards when the bolt is screwed into the sealing rubber bag. When the speed reducer is not assembled, the bolt is not screwed into the threaded blind hole, and the sealant is stored in the sealant bag and cannot play a role. When the speed reducer is assembled, the bolt is screwed into the threaded blind hole, the bolt can break the sealing rubber bag and compress the sealing rubber bag, and the sealing rubber in the sealing rubber bag flows out until the bolt is screwed into the threaded blind hole completely. One part of the sealant seals a gap between the bolt and the threaded blind hole, and the other part of the sealant flows to the joint of each component and the joint of the box body through the through hole, seals the joint of each component and the joint of the box body, enhances the sealing performance of the speed reducer, and prevents lubricating oil in the machine from flowing outwards.
The scheme has the beneficial effects that: the input shaft and the main shaft are meshed and connected through the spiral bevel gear and the bevel gear, and the two gears can enable the machine to run more stably, reduce noise and prolong service life. When the automatic gluing device is assembled on a machine, the joint of the sealing component and the connecting part of the box body prevent lubricating oil in the machine from flowing outwards, and the sealing performance of the machine is enhanced.
Further, an oil throwing disc is rotatably connected to the input shaft. After the sealing performance of the speed reducer is enhanced, lubricating oil is likely to accumulate due to high-speed running of the machine, and the oil thrower can return the lubricating oil to the gear and the bearing again.
Furthermore, a flat key is fixedly connected to the main shaft, and a spline is fixedly connected to the motor shaft. The flat key has simple structure, convenient disassembly and assembly and good centering property, and is suitable for occasions with high speed, load variation and impact resistance. The spline has the advantages of large bearing torque under the same shaft diameter, uniform stress, small stress concentration, long service life, good guidance quality and proper axial float when in use. According to different conditions and requirements, the main shaft uses a flat key, bears variable load and impact and is convenient to disassemble and assemble. The motor shaft is directly connected with the motor, so that the guide performance is good, the bearing torque is large, and the service life is long.
Further, the front bearing of the main shaft is a cylindrical roller bearing, the rear bearing of the main shaft is a tapered roller bearing, the front bearing of the input shaft is a self-aligning roller bearing, and the rear bearing of the input shaft is a tapered roller bearing. The roller and the roller path are in line contact or repaired line contact, the radial bearing capacity is large, and the roller is suitable for bearing heavy load and impact load.
Furthermore, an O-shaped rubber ring is arranged at the joint of the input box body and the main box body. The O-shaped rubber ring sealing part has the advantages of simple structure, compact installation part, light weight, self-sealing effect, better sealing performance and almost no leakage when being used as static seal, and the sealing can be completed by only one sealing piece. When the reciprocating valve is used for reciprocating motion, the sealing performance is unchanged in the reciprocating motion process, the leakage is very small, the leakage is only slightly generated when the speed is higher, the motion friction resistance is very small, the reciprocating valve can also be adapted to occasions with alternating pressure, the size and the groove are standardized, the cost is low, and the reciprocating valve is convenient to use and buy. The sealing performance of the machine can be further enhanced by using the O-shaped rubber ring, and the manufacturing cost of the machine is reduced.
Further, the input box body is fixedly connected with a framework oil seal and an oil seal cover, and the main box body is fixedly connected with a framework oil seal and a main shaft oil seal cover. The framework oil seal prevents silt, dust, water vapor and the like from invading the bearing from the outside and limits the leakage of lubricating oil in the bearing. The shaft can be properly clamped, the sealing effect is achieved, and the service life is long. The oil seal cover is a cover of the oil seal and can enclose the oil leaked inside the oil seal. The use of a skeletal oil seal and an oil cover may further enhance the sealing of the machine.
Furthermore, the input box body is fixedly connected with a bottom plate, a bearing cover and a main box body through hexagon screws, and the bearing cover is fixedly connected with a bearing seat through hexagon screws. The hexagon screw has the advantages of convenience in fastening and dismounting, difficulty in sliding angle and the like. The use of the hex screws allows for a more secure connection and easier disassembly.
Further, the bolt is a pointed bolt. The pointed bolt can pierce the sealing rubber bag more easily, so that the sealing rubber in the sealing rubber bag flows out more easily.
Furthermore, the inner wall of the threaded blind hole is in a threaded shape matched with the bolt. The bolt and the threaded blind hole are both in threaded shapes, so that the bolt and the threaded blind hole can be combined more stably, and the sealing effect is better when the sealant is used for sealing a gap between the bolt and the threaded blind hole.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an exploded view of a threaded blind hole according to an embodiment of the present invention.
Fig. 3 is a combination view of the threaded blind hole according to the embodiment of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the motor shaft 1, the input shaft 2, the main shaft 3, the tapered roller bearing 4, the oil thrower 5, the flat key 6, the O-shaped rubber ring 7, the main shaft oil seal cover 8, the box cover 9, the bottom plate 10, the connecting disc 11, the connecting gear 12, the motor gear 13, the oil seal cover 14, the input box body 15, the bearing seat 16, the bearing cover 17, the self-aligning roller bearing 18, the skeleton oil seal 19, the cylindrical roller bearing 20, the spiral bevel gear 21, the bevel gear 22, the main box body 23, the spline 24, the threaded blind hole 25, the through hole 26 and the bolt 27.
The embodiment is basically as shown in the attached figure 1:
this scheme includes the box, is equipped with main shaft 3, input shaft 2 and motor shaft 1 in the box. The main shaft 3 is provided with bevel gears 22, one end of the input shaft 2 is provided with a spiral bevel gear 21, and the bevel gears 22 are meshed with the spiral bevel gear 21. The other end of the input shaft 2 is provided with a connecting gear 12, one end of the motor shaft 1 is provided with a motor gear 13, the connecting gear 12 is meshed with the motor gear 13, and the tail end of the motor shaft 1 is fixedly connected with a connecting disc 11. An oil thrower 5 is rotatably connected to the input shaft 2. The upper bearing of the main shaft 3 is a tapered roller bearing 4, the front bearing of the input shaft 2 is a self-aligning roller bearing 18, and the rear bearing of the input shaft 2 is the tapered roller bearing 4.
The box body is composed of an input box body 15 and a main box body 23, the input box body 15 and the main box body 23 are fixedly connected through a hexagon screw, and an O-shaped rubber ring 7 is padded below the hexagon screw. The input box body 15 is fixedly connected with a bottom plate 10 and a bearing cover 17 through hexagon screws, the bearing cover 17 is fixedly connected with a bearing seat 16 through the hexagon screws, and an O-shaped rubber ring 7 is padded below each hexagon screw. The spindle 3 is fixedly connected with a flat key 6, the motor shaft 1 is fixedly connected with a spline 24, key grooves are formed in the spindle 3 and the motor shaft 1, and the flat key 6 and the spline 24 are arranged in the key grooves respectively.
As shown in fig. 2 and 3:
the input box body 15 is provided with a threaded blind hole 25, the inner wall of the threaded blind hole 25 is threaded, a sealing rubber bag filled with sealing rubber is arranged in the threaded blind hole 25, a through hole 26 leading to the joint surface of each component is arranged in the threaded blind hole 25, the bolt 27 is a pointed bolt, and the pointed bolt can pierce the sealing rubber bag more easily, so that the sealing rubber in the sealing rubber bag flows out more easily. The sealing rubber bag is a plastic bag and is flexible, the sealing rubber bag is filled with sealing rubber, the surface of the sealing rubber bag is in a tight state when the sealing rubber is filled, and the sealing rubber bag is used as a carrier of the sealing rubber and ensures that the sealing rubber does not flow out when the bolt 27 does not puncture the sealing rubber bag. When the sealing rubber bag is not punctured, the sealing rubber stored in the sealing rubber bag can not flow out. When the bolt 27 is screwed into the blind threaded hole 25, since the sealant bag is filled with the sealant and is in a relatively tight state, the pointed end of the bolt 27 can easily pierce the sealant bag and enter and compress the sealant bag, so that the sealant in the sealant bag flows out until the bolt 27 is completely screwed into the blind threaded hole 25. The sealant partially fills the gap between the bolt 27 and the inner wall of the threaded blind hole 25, and flows to the joint surface of each member through the through hole 26 in the threaded blind hole 25, and the sealant has a sealing effect after being dried.
The spiral bevel gear 21 has the advantages of high transmission efficiency, stable transmission ratio, large arc overlapping coefficient, high bearing capacity, stable and smooth transmission, reliable work, compact structure, energy and material conservation, space saving, wear resistance, long service life and low noise, the bevel gear 22 is formed by carburizing and quenching high-strength low-carbon alloy, the tooth surface hardness is high, the gear grinding process is adopted, the precision is high, and the contact is good. The bearing capacity is high and is improved by 7 times compared with the soft tooth surface. High transmission efficiency, single stage up to 98%, two stage up to 96%, three stage up to 94%, and long service life. The spiral bevel gear 21 and the bevel gear 22 can greatly improve the transmission efficiency, prolong the service life and reduce the noise.
The cylindrical roller bearing 20 has a small friction coefficient, is suitable for high speed, has a limit rotating speed close to that of a deep groove ball bearing, and is convenient to install and disassemble, and an inner ring or an outer ring can be separated.
The self-aligning roller bearing 18 has low rotation degree, impact resistance and vibration resistance, has an automatic self-aligning function, namely, the inner ring axis can still normally run when being greatly inclined (generally within 3 degrees) relative to the outer ring axis, mainly bears a large radial load, can bear a small axial load, has high rolling contact fatigue strength, high hardness and mechanical strength, and high product abrasion resistance. The tapered roller bearing mainly bears combined radial and axial loads which are mainly radial. The bearing load capacity depends on the raceway angle of the outer ring, with the greater the angle the greater the load capacity.
The O-shaped rubber ring 7 has the advantages of simple sealing part structure, compact mounting part, light weight, self-sealing effect, better sealing performance and almost no leakage when used for static sealing, and can always finish sealing by only one sealing piece. When the reciprocating valve is used for reciprocating motion, the sealing performance is unchanged in the reciprocating motion process, the leakage is very small, the leakage is only slightly generated when the speed is higher, the motion friction resistance is very small, the reciprocating valve can also be adapted to occasions with alternating pressure, the size and the groove are standardized, the cost is low, and the reciprocating valve is convenient to use and buy. The sealing performance of the machine can be further enhanced by using the O-shaped rubber ring, and the manufacturing cost of the machine is reduced.
In the specific operation:
the motor shaft 1 is driven and the motor gear 13 on the motor shaft 1 meshes with the connecting gear 12 on the input shaft, whereby the motor shaft 1 drives the input shaft 2 to rotate. Fixedly connected with disc 5 on the input shaft 2, disc 5 rotates along with input shaft 2, throws away the inside accumulational lubricating oil of machine during rotation, supplies with components such as gear and bearing, realizes the reuse of lubricating oil, and it is extravagant not on the one hand, also need not often artifical the interpolation on the one hand, uses manpower sparingly.
One end of the input shaft 2 is provided with a spiral bevel gear 21 which is meshed with bevel gears 22 arranged on the main shaft 3 to drive the main shaft 3 to rotate. All the joint parts of the component joint surfaces and the box body are provided with O-shaped gaskets, so that the vibration of the machine can be reduced, and the sealing property can be enhanced. The main shaft 3 uses the cylindrical roller bearing 20 and the tapered roller bearing 4, and the input shaft 2 uses the tapered roller bearing 4, so that the large load can be borne, and the installation and the disassembly are convenient. The input box body 15 is fixedly connected with the bottom plate 10, the bearing cover 17 and the main box body 23 through hexagon screws, the bearing cover 17 is fixedly connected with the bearing seat 16 through the hexagon screws, and the hexagon screws have the advantages of convenience in fastening and dismounting, difficulty in sliding angles and the like.
The main shaft 3 and the input shaft 2 are provided with oil seals and oil seal covers 14, so that the sealing performance of the machine is further enhanced. The input box body 15 is provided with a threaded blind hole 25, the inner wall of the threaded blind hole 25 is threaded, a sealing rubber bag filled with sealant is arranged in the threaded blind hole 25, and a through hole 26 leading to the joint surface of each component is arranged in the threaded blind hole 25, when a bolt 27 is screwed into the threaded blind hole 25, the bolt can puncture and enter the sealing rubber bag, so that the sealant in the sealing bag flows out. And part of the sealant is filled in the gap between the bolt 27 and the threaded inner wall in the threaded blind hole 25 to seal the gap. The other part of the lubricating oil flows to the joint surfaces of the components through the through holes 26 which are communicated with the joint surfaces of the components in the threaded blind holes 25, and the joint of the joint surfaces of the components and the box body is firmly adhered, so that the lubricating oil cannot leak out of the machine, and the sealing effect is enhanced.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (9)

1. A cooling tower speed reducer comprises a box body, an input shaft, a main shaft and a motor shaft, wherein the input shaft, the main shaft and the motor shaft are arranged in the box body, one end of the input shaft is provided with a spiral bevel gear, the main shaft is provided with bevel gears, the spiral bevel gear is meshed with the bevel gears, the motor shaft is provided with a motor gear, one end of the input shaft is provided with a connecting gear, the motor gear is meshed with the connecting gear, the box body is composed of an input box body and a main box body, the input box body is fixedly connected with a connecting disc, the input box body is fixedly connected with the main box body, the input box body is fixedly connected with a bottom plate and a bearing cover, the bearing cover is fixedly connected with a bearing seat, the cooling tower speed reducer is characterized in that the main box body is at least provided with two automatic gluing devices, each automatic gluing device comprises a threaded blind hole formed, the sealing glue bag is internally provided with sealing glue, the threaded blind hole is matched with the bolt, and the main box body is fixedly connected with the input box body through the bolt and the threaded blind hole.
2. The cooling tower reducer of claim 1, wherein an oil slinger is fixedly attached to the input shaft.
3. The cooling tower reducer according to claim 1, wherein a flat key is fixedly connected to the main shaft, and a spline is fixedly connected to the motor shaft.
4. The cooling tower reducer according to claim 1, wherein the main shaft front bearing is a cylindrical roller bearing, the main shaft rear bearing is a tapered roller bearing, the input shaft front bearing is a self-aligning roller bearing, and the input shaft rear bearing is a tapered roller bearing.
5. The cooling tower reducer according to claim 1, wherein an O-shaped rubber ring is arranged at the joint of the input box body and the main box body.
6. The cooling tower reducer according to claim 1, wherein the input box is fixedly connected with a framework oil seal and an oil seal cover, and the main box is fixedly connected with a framework oil seal and a main shaft oil seal cover.
7. The cooling tower reducer according to claim 1, wherein the input box is fixedly connected with a bottom plate, a bearing cover and a main box through hexagon screws, and the bearing cover is fixedly connected with a bearing seat through hexagon screws.
8. The cooling tower reducer according to claim 1, wherein the bolt is a pointed bolt.
9. The cooling tower speed reducer according to claim 1, wherein the inner wall of the threaded blind hole is threaded to fit a bolt.
CN202011030244.6A 2020-09-27 2020-09-27 Speed reducer of cooling tower Pending CN112178167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011030244.6A CN112178167A (en) 2020-09-27 2020-09-27 Speed reducer of cooling tower

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Application Number Priority Date Filing Date Title
CN202011030244.6A CN112178167A (en) 2020-09-27 2020-09-27 Speed reducer of cooling tower

Publications (1)

Publication Number Publication Date
CN112178167A true CN112178167A (en) 2021-01-05

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CN202011030244.6A Pending CN112178167A (en) 2020-09-27 2020-09-27 Speed reducer of cooling tower

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CN (1) CN112178167A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2442031Y (en) * 2000-08-16 2001-08-08 张协和 Upside-down mounted low noise cooling tower speed reducer
CN201045394Y (en) * 2007-05-22 2008-04-09 山东理工大学 Vertical type decelerator special for spiral angle gear chemical industry equipment
CN202301968U (en) * 2011-10-28 2012-07-04 天津市天发重型水电设备制造有限公司 Novel overhaul seal structure of hydraulic turbine
CN202418173U (en) * 2011-12-07 2012-09-05 东风汽车公司 Anti-seepage blind hole bolt
CN103883678A (en) * 2014-04-03 2014-06-25 重庆市璧山爱华有限责任公司 Speed reducer special for cooling tower and air cooler
CN203670718U (en) * 2013-12-30 2014-06-25 台州长城机械制造有限公司 Hyperbolic helical bevel gear reduction gearbox
CN205423786U (en) * 2015-12-14 2016-08-03 成都久和建设设备有限责任公司 Reducer output end spline is from lubricating arrangement
JP2017032025A (en) * 2015-07-30 2017-02-09 Ntn株式会社 Electric brake device
CN207761075U (en) * 2018-01-04 2018-08-24 重庆工程职业技术学院 A kind of construction engineering water-proof structure
CN210343995U (en) * 2019-08-16 2020-04-17 苏州固宝螺丝有限公司 Extrusion self-sealing bolt

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2442031Y (en) * 2000-08-16 2001-08-08 张协和 Upside-down mounted low noise cooling tower speed reducer
CN201045394Y (en) * 2007-05-22 2008-04-09 山东理工大学 Vertical type decelerator special for spiral angle gear chemical industry equipment
CN202301968U (en) * 2011-10-28 2012-07-04 天津市天发重型水电设备制造有限公司 Novel overhaul seal structure of hydraulic turbine
CN202418173U (en) * 2011-12-07 2012-09-05 东风汽车公司 Anti-seepage blind hole bolt
CN203670718U (en) * 2013-12-30 2014-06-25 台州长城机械制造有限公司 Hyperbolic helical bevel gear reduction gearbox
CN103883678A (en) * 2014-04-03 2014-06-25 重庆市璧山爱华有限责任公司 Speed reducer special for cooling tower and air cooler
JP2017032025A (en) * 2015-07-30 2017-02-09 Ntn株式会社 Electric brake device
CN205423786U (en) * 2015-12-14 2016-08-03 成都久和建设设备有限责任公司 Reducer output end spline is from lubricating arrangement
CN207761075U (en) * 2018-01-04 2018-08-24 重庆工程职业技术学院 A kind of construction engineering water-proof structure
CN210343995U (en) * 2019-08-16 2020-04-17 苏州固宝螺丝有限公司 Extrusion self-sealing bolt

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