CN210106544U - Worm wheel end cover applied to worm gear reducer - Google Patents
Worm wheel end cover applied to worm gear reducer Download PDFInfo
- Publication number
- CN210106544U CN210106544U CN201920986914.8U CN201920986914U CN210106544U CN 210106544 U CN210106544 U CN 210106544U CN 201920986914 U CN201920986914 U CN 201920986914U CN 210106544 U CN210106544 U CN 210106544U
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- die
- arched
- casting
- worm gear
- ring
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- Expired - Fee Related
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 16
- 238000004512 die casting Methods 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The worm gear end cover applied to the worm gear speed reducer comprises a ring body, a plurality of nail passing holes which are uniformly distributed in the circumferential direction are formed in the outer edge of the ring body, a ring extending portion is arranged on the end face of one end of the ring body, a sealing ring positioning groove is formed in the middle of the outer wall of the ring extending portion, a plurality of first arch die-casting grooves which are uniformly distributed in the circumferential direction are formed in the end face of the ring extending portion, which is far away from the ring body, a plurality of second arch die-casting grooves which are uniformly distributed in the circumferential direction are formed in the end face of the ring body, which is provided with the ring extending portion, a nail passing hole is formed between every two adjacent second arch die-casting grooves, a plurality of arc notches which are uniformly distributed in the circumferential direction are formed in the outer edge of the end face of the ring body, which is far away from the ring extending portion, the rest outer convex parts are provided with die-casting forming grooves, and a threaded hole is formed between every two adjacent die-casting forming grooves.
Description
Technical Field
The utility model belongs to the technical field of the reduction gear, especially, relate to a be applied to worm gear reducer's worm wheel end cover.
Background
The structure of the worm gear speed reducer comprises a box body, an output shaft, a worm gear connected to the output shaft and a worm meshed with the worm gear are arranged in the box body, one end of the output shaft is fixed in the box body through a bearing, and the other end of the output shaft penetrates through a worm gear end cover.
The worm wheel end cover is of a circular ring-shaped structure, one end matched with the box body is fixed to the box body through a bolt, meanwhile, an O-shaped sealing ring is arranged between the worm wheel end cover and the box body, and the O-shaped sealing ring is used for sealing the circumferential direction of the worm wheel end cover and the inner wall of the box body.
The existing structure has simple structure and can meet the sealing requirement to a certain extent, but the structure has the following defects:
the end face of the worm wheel end cover and the corresponding end face of the box body are lack of sealing, and the worm wheel end cover and the box body cannot be sealed due to abrasion of the O-shaped sealing ring.
Secondly, its manufacturing cost is higher for the worm wheel end cover, and the main reason is: the end faces of the two ends of the worm gear end cover are both of plane solid structures.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide a with low costs and the better worm wheel end cover of being applied to worm gear reduction gear of leakproofness.
In order to achieve the above purpose, the utility model adopts the following technical proposal: the worm gear end cover applied to the worm gear speed reducer comprises a torus, a plurality of nail passing holes which are uniformly distributed in the circumference are formed in the outer edge of the torus, a torus extending portion is arranged on the end face of one end of the torus, the axis of the torus coincides with the axis of the torus extending portion, a sealing ring positioning groove is formed in the middle of the outer wall of the torus extending portion, a plurality of first arch die-casting forming grooves which are uniformly distributed in the circumference are formed in the end face of the torus extending portion, which is far away from the torus, a plurality of second arch die-casting forming grooves which are uniformly distributed in the circumference are formed in the end face of the torus, an arch sealing strip is arranged in the second arch die-casting forming groove, the thickness of the arch sealing strip is larger than the depth of the second arch die-casting forming groove, the arch sealing strip is arranged in the second arch die-casting forming, a nail passing hole is formed between the two adjacent arched die-casting forming grooves II, a plurality of arc notches which are uniformly distributed in the circumference are formed in the outer edge of the end face of one end, away from the ring extending portion, of the ring body, outer convex portions are formed between the two adjacent arc notches, a threaded hole is formed in part of the outer convex portions, the rest outer convex portions are provided with die-casting forming grooves, and a threaded hole is formed between the two adjacent die-casting forming grooves.
In the worm gear end cover applied to the worm gear speed reducer, the length of the first arched die-casting forming groove is longer than that of the second arched die-casting forming groove.
In foretell worm gear end cover who is applied to worm gear reduction gear, the quantity of two arch die-casting shaping recesses of a quantity and arch die-casting shaping recess equal, and two one-by-one distributions of arch die-casting shaping recess are in an arch die-casting shaping recess periphery.
In the worm gear end cover applied to the worm gear speed reducer, the depth of the threaded hole is smaller than the thickness of the annular body.
In the worm gear end cover applied to the worm gear speed reducer, the end face of the arched sealing strip protruding out of the two notches of the arched die-casting forming groove is provided with a plurality of sealing lips arranged along the length direction of the arched sealing strip.
Compared with the prior art, the worm wheel end cover applied to the worm gear reducer has the advantages that:
the O-shaped sealing ring and the arched sealing strip can form two seals, and the sealing performance is better.
The designed first arched die-casting forming groove, the second arched die-casting forming groove and the die-casting forming groove can reduce the input of materials, greatly reduce the manufacturing cost and reduce the weight of the worm gear end cover.
The design is more reasonable.
Drawings
Fig. 1 is a schematic structural diagram provided by the present invention.
Fig. 2 is a schematic view of another viewing angle structure provided by the present invention.
Fig. 3 is a schematic sectional view taken along line a-a in fig. 1.
Fig. 4 is a schematic view of the transverse cross-section structure of the arched sealing strip provided by the present invention.
In the figure, a circular ring body 1, a nail passing hole 11, an arched die-casting forming groove II 12, an arc-shaped notch 13, an outer convex part 14, a threaded hole 15, a die-casting forming groove 16, a circular ring extending part 2, a sealing ring positioning groove 21, an arched die-casting forming groove I22, an arched sealing strip 3 and a sealing lip 31.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the worm wheel end cover applied to the worm gear speed reducer comprises a circular ring body 1, a plurality of nail passing holes 11 which are uniformly distributed in the circumferential direction are formed in the outer edge of the circular ring body 1, a circular ring extending portion 2 is arranged on the end face of one end of the circular ring body 1, and the circular ring body 1 and the circular ring extending portion 2 are manufactured through die casting.
An oil seal fixing area and a bearing fixing area are arranged in the annular body 1, the inner diameter of the oil seal fixing area is smaller than that of the bearing fixing area, and the inner diameter of the annular extension part 2 is equal to that of the bearing fixing area, so that the bearing can be conveniently installed and fixed.
As shown in the figures 1-3 of the drawings,
the axial lead of the ring body 1 coincides with the axial lead of the ring extension 2, a sealing ring positioning groove 21 is arranged in the middle of the outer wall of the ring extension 2, and an O-shaped sealing ring is arranged in the sealing ring positioning groove 21 so as to be sealed with the inner wall of the box body. The ring extension 2 is designed to extend into the box body and enlarge the contact area with the box body, and the structure can improve the structural strength of the connection part and improve the sealing property.
The end face, away from the annular body 1, of the annular extension part 2 is provided with a plurality of first arched die-casting grooves 22 which are uniformly distributed in the circumferential direction, and the first arched die-casting grooves are directly formed through die-casting, so that materials can be saved, and the manufacturing cost and the weight are reduced.
A plurality of second arched die-casting forming grooves 12 which are uniformly distributed in the circumferential direction are formed in the end face, provided with the ring extending portion 2, of the ring body 1, and the second arched die-casting forming grooves are directly formed through die-casting, so that materials can be saved, and manufacturing cost and weight are reduced.
A screw passing hole 11 is arranged between two adjacent arched die-casting forming grooves 12, and a screw is inserted into the screw passing hole 11 and is in threaded connection with the box body.
The outer edge of the end face of the ring body 1 far away from the ring extension 2 is provided with a plurality of arc-shaped notches 13 which are uniformly distributed in the circumference, similarly, the arc-shaped notches 13 are also directly manufactured by die-casting, an outer convex part 14 is formed between two adjacent arc-shaped notches 13, a threaded hole 15 is arranged on part of the outer convex part 14 of the outer convex parts 14, the threaded hole is in threaded connection with a screw on the torsion arm, a die-casting groove 16 is arranged on the rest outer convex part 14, and a threaded hole 15 is arranged between two adjacent die-casting grooves 16.
The number of threaded holes 15 is equal to the number of die-cast recesses 16.
The die-cast recess 16, which is directly formed by die-casting, can save material and reduce manufacturing cost and weight.
Further, the length of the first arched die-casting groove 22 is longer than that of the second arched die-casting groove 12.
The number of the first arched die-casting forming grooves 22 is equal to that of the second arched die-casting forming grooves 12, and the second arched die-casting forming grooves 12 are distributed on the periphery of the first arched die-casting forming grooves 22 one by one. The structure is convenient for opening the mold.
Secondly, the depth of the threaded hole 15 is smaller than the thickness of the torus 1.
As shown in figures 1 and 4 of the drawings,
an arched sealing strip 3 is arranged in the arched die-casting forming groove II 12, the arched sealing strip 3 is made of rubber materials, the thickness of the arched sealing strip 3 is larger than the depth of the arched die-casting forming groove II 12, the arched sealing strip 3 is arranged in the arched die-casting forming groove II 12, and part of the arched sealing strip 3 protrudes out of the notch of the arched die-casting forming groove II 12,
the arched sealing strip 3 protrudes out of the second arched die-casting groove 12, and the notch is 0.2-0.8 mm. The arched sealing strip 3 is subjected to the screw locking force, so that the protruding part is forced to be compressed and deformed into the arched die-casting forming groove II 12, when the arched sealing strip is inosculated with the corresponding end face of the box body, the sealing performance between the end faces can be improved, the sealing performance is better, and the lubricating oil leakage phenomenon is avoided.
The end face of the arched sealing strip 3 protruding out of the notch of the arched die-casting forming groove II 12 is provided with a plurality of sealing lips 31 arranged along the length direction of the arched sealing strip 3. The sealing lip 31 is of an arcuate configuration.
And a concave decompression groove (not shown in the figure) is arranged on one surface of the arched sealing strip 3 close to the bottom of the arched die-casting groove II 12.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. Be applied to worm gear reducer's worm wheel end cover, including tourus (1), be equipped with a plurality of nail holes (11) of crossing that are circumference evenly distributed in the outer fringe of tourus (1), its characterized in that, be equipped with ring extension (2) at one of them terminal surface of tourus (1), the axial lead of tourus (1) and the axial lead coincidence of ring extension (2), be equipped with sealing washer constant head tank (21) in the outer wall middle part of ring extension (2), be equipped with a plurality of arch die-casting shaping recess one (22) that are circumference evenly distributed on the terminal surface of one end that keeps away from tourus (1) in ring extension (2), set up a plurality of arch die-casting shaping recess two (12) that are circumference evenly distributed on the terminal surface that tourus (1) was equipped with ring extension (2), be equipped with arch sealing strip (3) in arch die-casting shaping recess two (12), the thickness of the arched sealing strip (3) is larger than the depth of the arched die-casting forming groove II (12), the arched sealing strip (3) is arranged in the arched die-casting forming groove II (12) and partially protrudes out of the notch of the arched die-casting forming groove II (12), a nail passing hole (11) is formed between every two adjacent arched die-casting forming groove II (12), a plurality of arc-shaped notches (13) which are uniformly distributed in the circumferential direction are formed in the outer edge of the end face of one end, far away from the ring extending portion (2), of the ring body (1), an outer convex portion (14) is formed between every two adjacent arc-shaped notches (13), a threaded hole (15) is formed in part of the outer convex portion (14) of the outer convex portions (14), die-casting forming grooves (16) are formed in the rest of the outer convex portions (14), and a threaded hole (15) is formed between every.
2. The worm-wheel end cover applied to the worm gear reducer according to claim 1, wherein the length of the first arched die-casting groove (22) is longer than that of the second arched die-casting groove (12).
3. The worm gear end cover applied to the worm gear speed reducer is characterized in that the number of the first arched die-casting grooves (22) is equal to that of the second arched die-casting grooves (12), and the second arched die-casting grooves (12) are distributed on the periphery of the first arched die-casting grooves (22) one by one.
4. The worm gear end cover applied to the worm gear speed reducer according to claim 1, characterized in that the depth of the threaded hole (15) is smaller than the thickness of the ring body (1).
5. The worm gear end cover applied to the worm gear speed reducer according to claim 1, wherein the end surface of the arched sealing strip (3) protruding out of the notch of the arched die-casting groove II (12) is provided with a plurality of sealing lips (31) arranged along the length direction of the arched sealing strip (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920986914.8U CN210106544U (en) | 2019-06-27 | 2019-06-27 | Worm wheel end cover applied to worm gear reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920986914.8U CN210106544U (en) | 2019-06-27 | 2019-06-27 | Worm wheel end cover applied to worm gear reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106544U true CN210106544U (en) | 2020-02-21 |
Family
ID=69566034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920986914.8U Expired - Fee Related CN210106544U (en) | 2019-06-27 | 2019-06-27 | Worm wheel end cover applied to worm gear reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106544U (en) |
-
2019
- 2019-06-27 CN CN201920986914.8U patent/CN210106544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200221 |