CN209385599U - The heavy load transmission final-stage gear pair of sliding bearing support - Google Patents
The heavy load transmission final-stage gear pair of sliding bearing support Download PDFInfo
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- CN209385599U CN209385599U CN201920093693.1U CN201920093693U CN209385599U CN 209385599 U CN209385599 U CN 209385599U CN 201920093693 U CN201920093693 U CN 201920093693U CN 209385599 U CN209385599 U CN 209385599U
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Abstract
The utility model provides a kind of heavy load transmission final-stage gear pair of sliding bearing support, its main points is: the shape of the crest top land of each gear teeth is, each end segments band taper, i.e. two end segments are in symmetrical isosceles trapezoid, middle part is in rectangle, middle part and abutting end section link up smoothly it is integral, the flank of tooth also according to above-mentioned correspondence the direction of the facewidth be divided into two end flank of tooth sections and its between middle part flank of tooth section；The taper is limited to, and gear pair is not only engaged in the middle part engagement of a pair of of gear teeth, end segments disengagement.The good effect of the utility model is: gear pair flank of tooth end segments disengagement in transmission is not engaged, middle part of the engaging stress point in the gear teeth flank of tooth, even if rack gear or canine tooth wheel end are squeezed plastic deformation, it can also prevent the generation of apical tooth phenomenon, and then unbalance loading phenomenon caused by various factors is avoided, to avoid the probability of gear generation broken teeth.
Description
Technical field
The utility model relates to the gear pairs of sliding bearing support, specifically last in the heavy load transmission mechanism of heavy equipment
The spur gear pair that grade is driven, is supported by sliding bearing.
Background technique
Each gear teeth of existing spur gear are not only parallel to its axis, the tooth top of (referring to Fig. 1 and 2) and each gear teeth
Face 1(is surrounded by increment 3 and the facewidth 2) it is in rectangle.Crest top land can be divided into three sections on the direction of the facewidth, two end segments and
Middle part between two end segments.In its three Duan Doucheng rectangle of the crest top land of rectangle.It applies in heavy types such as mine, metallurgy
In equipment heavy load transmission mechanism, final drive is usually spur gear pair (hereinafter referred to as gear pair), is supported using sliding bearing.Due to
In the transmission mechanism end sliding bearing, the abrasion of axis and heavy equipment factors cause final-stage gear pair to engage
It is abnormal, the two end segments tooth surface abrasion of gear pair is caused, the later period may lead to tooth surface plastic deformation because of unbalance loading, serious to lead
Gear pair apical tooth or broken teeth are caused, harm is brought to equipment safety operation, increases the cost of use of equipment.
Summary of the invention
In order to solve the above technical problems, the purpose of the utility model is to provide a kind of heavy load transmission ends of sliding bearing support
Grade gear pair.
Purpose of the utility model is realized as follows: each gear teeth on each gear include crest top land, each gear teeth
Crest top land on the direction of the facewidth points three sections, i.e., two end segments and its between middle part, it is characterized in that: each gear teeth
The shape of crest top land is that each end segments band taper, i.e. two end segments are in symmetrical isosceles trapezoid, and middle part is in rectangle, in
Section and abutting end section link up smoothly integrally, and the flank of tooth is also divided into two end flank of tooth in the direction of the facewidth according to above-mentioned correspondence
Section and its between middle part flank of tooth section；The taper is limited to, and gear pair is only de- in the middle part engagement of a pair of of gear teeth, end segments
It opens and does not engage.
Compared with prior art, the good effect of the utility model is: gear pair flank of tooth end segments in transmission disengage not
Engagement, engaging stress point are concentrated mainly on the middle part of the gear teeth flank of tooth, even if rack gear or canine tooth wheel end are squeezed plasticity change
Shape can also prevent the generation of apical tooth phenomenon, and then avoid unbalance loading phenomenon caused by various factors, to avoid gear that broken teeth occurs
Probability.
Detailed description of the invention
The utility model is further illustrated with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of existing spur gear.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the schematic diagram of the pinion gear (driving gear) in the utility model.
Fig. 4 is the B-B sectional view of Fig. 3.
Fig. 5 is the axis side schematic diagram of one gear teeth of the utility model.
Specific embodiment
Referring to Fig. 3, each gear teeth on each gear include crest top land 1, and referring to fig. 4 with 5, the crest top land of each gear teeth exists
Points three sections on the direction of the facewidth, i.e., two end segments 4 and its between middle part 5；The shape of the crest top land of each gear teeth is, often
A end segments band taper, i.e. two end segments are in symmetrical isosceles trapezoid, and middle part is in rectangle, and middle part and abutting end section are flat
Sliding linking is integral, the flank of tooth also according to above-mentioned correspondence the direction of the facewidth be divided into two end flank of tooth sections and its between center teeth
Face section (ginseng is seen figures 3 and 4)；The taper is limited to, and gear pair is not only nibbled in the middle part engagement of a pair of of gear teeth, end segments disengagement
It closes；Under the influence of in the final stage spur gear pair transmission of sliding bearing support because of factors such as sliding bearing abrasion, bearing wears,
Even if spur gear pair mesh regional changes, or based on flank of tooth section engagement in the middle part of gear pair, flank of tooth section participation in end is nibbled
It is combined into auxiliary, can effectively avoid equipment final stage spur gear pair and engagement, apical tooth or broken teeth failure partially occurs.
Claims (1)
1. a kind of heavy load transmission final-stage gear pair of sliding bearing support, each gear teeth on each gear include crest top land, often
The crest top land of a gear teeth points three sections on the direction of the facewidth, i.e., two end segments and its between middle part, it is characterized in that: each
The shape of the crest top land of the gear teeth is that each end segments band taper, i.e. two end segments are in symmetrical isosceles trapezoid, and middle part is in square
Shape, middle part and abutting end section link up smoothly integrally, and the flank of tooth is also divided into two ends in the direction of the facewidth according to above-mentioned correspondence
Portion's flank of tooth section and its between middle part flank of tooth section；The taper is limited to, and gear pair is only in the middle part engagement of a pair of of gear teeth, end
Section disengagement is not engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920093693.1U CN209385599U (en) | 2019-01-21 | 2019-01-21 | The heavy load transmission final-stage gear pair of sliding bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920093693.1U CN209385599U (en) | 2019-01-21 | 2019-01-21 | The heavy load transmission final-stage gear pair of sliding bearing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385599U true CN209385599U (en) | 2019-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920093693.1U Active CN209385599U (en) | 2019-01-21 | 2019-01-21 | The heavy load transmission final-stage gear pair of sliding bearing support |
Country Status (1)
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| CN (1) | CN209385599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854704A (en) * | 2019-01-21 | 2019-06-07 | 沈阳宏延冶金矿山机械有限责任公司 | The heavy load transmission final-stage gear pair of sliding bearing support |
-
2019
- 2019-01-21 CN CN201920093693.1U patent/CN209385599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854704A (en) * | 2019-01-21 | 2019-06-07 | 沈阳宏延冶金矿山机械有限责任公司 | The heavy load transmission final-stage gear pair of sliding bearing support |
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