CN202926963U - Speed reducer for coal grinding mill - Google Patents

Speed reducer for coal grinding mill Download PDF

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Publication number
CN202926963U
CN202926963U CN 201220668607 CN201220668607U CN202926963U CN 202926963 U CN202926963 U CN 202926963U CN 201220668607 CN201220668607 CN 201220668607 CN 201220668607 U CN201220668607 U CN 201220668607U CN 202926963 U CN202926963 U CN 202926963U
Authority
CN
China
Prior art keywords
gear
low
high speed
driven gear
speed
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.)
Expired - Fee Related
Application number
CN 201220668607
Other languages
Chinese (zh)
Inventor
胡剑华
王鑫
周伶俐
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.)
DEYANG DONGFANG HENGFA POWER EQUIPMENT MANUFACTURE Co Ltd
Original Assignee
DEYANG DONGFANG HENGFA POWER EQUIPMENT MANUFACTURE 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 DEYANG DONGFANG HENGFA POWER EQUIPMENT MANUFACTURE Co Ltd filed Critical DEYANG DONGFANG HENGFA POWER EQUIPMENT MANUFACTURE Co Ltd
Priority to CN 201220668607 priority Critical patent/CN202926963U/en
Application granted granted Critical
Publication of CN202926963U publication Critical patent/CN202926963U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a speed reducer for a coal grinding mill. The speed reducer for the coal grinding mill comprises a box body, and a gear shaft I, a gear shaft II and a gear shaft III which are arranged in parallel in the box body, wherein a high-speed driving gear is assembled on the gear shaft I; a high-speed driven gear and a low-speed driving gear are assembled on the gear shaft II; a low-speed driven gear is assembled on the gear shaft III; and the high-speed driving gear, the high-speed driven gear, the low-speed driving gear and the low-speed driven gear are cylindrical involute gears of which the normal displacement factors are 0.36-0.56. According to the speed reducer for the coal grinding mill, the normal displacement factors of the high-speed driving gear, the high-speed driven gear, the low-speed driving gear and the low-speed driven gear are designed into 0.36-0.56, so that the gear thicknesses of the gears are increased reasonably, the strength of gear teeth is increased effectively, the phenomena of fissure, tooth breakage and the like in a use process are avoided, and the service life of a gear set is prolonged greatly.

Description

A kind of coal pulverizer retarder
Technical field
The utility model relates to a kind of coal pulverizer parts, particularly relates to a kind of coal pulverizer retarder.
Background technique
What the gear assembly on present coal pulverizer retarder adopted mostly is standard cylinder involute gear, its normal direction modification coefficient is 0, the transverse tooth thickness of the gear of this structure is less, the phenomenons such as fissure, broken teeth in use easily appear, usually its use must be changed less than 1 year, have a strong impact on the working life of gear train, make the maintenance and repair cost of coal pulverizer higher.
The model utility content
Technical problem to be solved in the utility model is to provide that a kind of gear train is not fragile, the coal pulverizer retarder of long service life.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of coal pulverizer retarder, comprise casing and be installed in parallel in casing interior gear shaft one, gear shaft two, gear shaft three, be equipped with the high speed driving gear on described gear shaft one, be equipped with high speed driven gear and low-speed active gear on gear shaft two, be equipped with the low speed driven gear on gear shaft three, described high speed driving gear, high speed driven gear, low-speed active gear and low speed driven gear are that the normal direction modification coefficient is 0.36 to 0.56 cylinder involute tooth wheel.
As preferably, the normal direction modification coefficient of described high speed driving gear, high speed driven gear, low-speed active gear and low speed driven gear is 0.46.
As preferably, it is 0.8 to 1.5 millimeter carburized case that the surface of described high speed driving gear, high speed driven gear, low-speed active gear and low speed driven gear is provided with thickness.
As preferably, the high speed driving gear both sides of described gear shaft one are equipped with the gear shaft spring bearing by support, and described support is fixedly connected with bottom half.
A kind of coal pulverizer retarder of the utility model, by being that the normal direction modification coefficient is designed to 0.36 to 0.56 cylinder involute tooth wheel with high speed driving gear, high speed driven gear, low-speed active gear and low speed driven gear, rationally increased the transverse tooth thickness of gear, effectively improved the intensity of the gear teeth, the phenomenons such as the fissure in the using process, broken teeth have been avoided, greatly extend the working life of gear train, reduced the working service cost of coal pulverizer retarder.
A kind of coal pulverizer retarder of the utility model, architecture advances is simple, and using effect is remarkable, has larger economic value and progressive meaning.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of coal pulverizer retarder of the utility model.
Wherein, reference character: 1 is casing, and 2 is that gear shaft one, 3 is that gear shaft two, 4 is that gear shaft three, 5 is the high speed driving gear, and 6 is the high speed driven gear, and 7 is the low speed driven gear, and 8 is the low speed driven gear, and 9 is support, and 10 is the gear shaft spring bearing.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or similar characteristics.
As shown in Figure 1, the utility model coal pulverizer retarder, comprise casing 1 and be installed in parallel in casing interior gear shaft 1, gear shaft 23, gear shaft 34, be equipped with high speed driving gear 5 on described gear shaft 1, be equipped with high speed driven gear 6 and low-speed active gear 7 on gear shaft 23, be equipped with low speed driven gear 8 on gear shaft 34, described high speed driving gear 5, high speed driven gear 6, low-speed active gear 7 and low speed driven gear 8 are 0.36 to 0.56 cylinder involute tooth wheel for the normal direction modification coefficient.Here as calculated and analyze, the normal direction modification coefficient of high speed driving gear 5, high speed driven gear 6, low-speed active gear 7 and low speed driven gear 8 is designed to 0.46, has better effect.
As shown in Figure 1, in a kind of coal pulverizer retarder of the utility model, it is 0.8 to 1.5 millimeter carburized case that the surface of high speed driving gear 5, high speed driven gear 6, low-speed active gear 7 and low speed driven gear 8 is provided with thickness, so both guarantee the scurf resistance of gear, and avoided again its fragility excessive.In addition, by support 9, gear shaft spring bearing 10 is installed in high speed driving gear 5 both sides of gear shaft 1, support 9 is fixedly connected with casing 1 bottom, and the rigidity in the time of can improving like this gear shaft 1 and use is avoided its fracture.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (4)

1. coal pulverizer retarder, comprise casing (1) and be installed in parallel in the interior gear shaft one (2) of casing, gear shaft two (3), gear shaft three (4), be equipped with high speed driving gear (5) on described gear shaft one (2), be equipped with high speed driven gear (6) and low-speed active gear (7) on gear shaft two (3), be equipped with low speed driven gear (8) on gear shaft three (4), it is characterized in that: described high speed driving gear (5), high speed driven gear (6), low-speed active gear (7) and low speed driven gear (8) are 0.36 to 0.56 cylinder involute tooth wheel for the normal direction modification coefficient.
2. a kind of coal pulverizer retarder according to claim 1, it is characterized in that: the normal direction modification coefficient of described high speed driving gear (5), high speed driven gear (6), low-speed active gear (7) and low speed driven gear (8) is 0.46.
3. a kind of coal pulverizer retarder according to claim 1, it is characterized in that: it is 0.8 to 1.5 millimeter carburized case that the surface of described high speed driving gear (5), high speed driven gear (6), low-speed active gear (7) and low speed driven gear (8) is provided with thickness.
4. a kind of coal pulverizer retarder according to claim 1, it is characterized in that: high speed driving gear (5) both sides of described gear shaft one (2) are equipped with gear shaft spring bearing (10) by support (9), and described support (9) is fixedly connected with casing (1) bottom.
CN 201220668607 2012-12-07 2012-12-07 Speed reducer for coal grinding mill Expired - Fee Related CN202926963U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220668607 CN202926963U (en) 2012-12-07 2012-12-07 Speed reducer for coal grinding mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220668607 CN202926963U (en) 2012-12-07 2012-12-07 Speed reducer for coal grinding mill

Publications (1)

Publication Number Publication Date
CN202926963U true CN202926963U (en) 2013-05-08

Family

ID=48216925

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220668607 Expired - Fee Related CN202926963U (en) 2012-12-07 2012-12-07 Speed reducer for coal grinding mill

Country Status (1)

Country Link
CN (1) CN202926963U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465280A (en) * 2016-01-18 2016-04-06 沃德传动(天津)股份有限公司 Speed reducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465280A (en) * 2016-01-18 2016-04-06 沃德传动(天津)股份有限公司 Speed reducer

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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: 20130508

Termination date: 20151207

EXPY Termination of patent right or utility model