CN210183133U - Weight-reducing end cover - Google Patents
Weight-reducing end cover Download PDFInfo
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- CN210183133U CN210183133U CN201921205334.7U CN201921205334U CN210183133U CN 210183133 U CN210183133 U CN 210183133U CN 201921205334 U CN201921205334 U CN 201921205334U CN 210183133 U CN210183133 U CN 210183133U
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- end cover
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Abstract
The utility model aims at providing a weight reduction end cover with low weight and low cost. In order to achieve the above purpose, the utility model adopts the following technical scheme: a weight-reducing end cover comprises an end cover body, wherein a shell and a reduction gearbox are respectively arranged on two axial sides of the end cover body, an axial through shaft hole is formed in the end cover body, the front side of the end cover body extends forwards in an axial direction to form a first positioning ring, at least two seam allowance structures are matched between the front end face of the first positioning ring and the rear end face of a box body of the reduction gearbox, at least two concave seam allowances or convex seam allowances are arranged on the front end face of the first positioning ring, a first groove which is concave towards the axial front side is formed in the rear end face of the end cover body, a bearing baffle boss is formed in the middle of the end cover body, reinforcing ribs are connected between the circumferential inner wall of the first groove and the circumferential outer wall of the bearing baffle boss, the axial groove face of the first groove is concave towards the axial front side to form a plurality of second grooves, and the second grooves.
Description
Technical Field
The utility model relates to a subtract heavy end cover.
Background
In the existing equipment, a motor drives equipment through a reduction gearbox, the motor and the reduction gearbox are fixed on the equipment, the motor cannot be detached when linkage between the reduction gearbox and the motor is carried out in order to keep stability among the motor, the reduction gearbox and the equipment, therefore, the diameter or the width of a front end cover of the motor needs to be larger, then a fixing hole is formed in the front end cover, a bolt penetrates through the fixing hole and then is fixed with the reduction gearbox, and the fixation of the motor and the reduction gearbox is realized through the bolt.
The motor is linked with the reduction gearbox through the coupler, in order to ensure the coaxiality of the rotating shaft of the motor, the coupler and the input shaft of the reduction gearbox, a client can require a plurality of coaxial spigot matching structures to be arranged between the reduction gearbox and the motor, and the spigot of the reduction gearbox and the spigot of the front end cover of the motor are matched to avoid the non-coaxial of the rotating shaft of the motor and the input shaft of the reduction gearbox caused by the inclination of the bolt.
In order to reduce the overall volume and ensure the coaxiality, the coupler is generally assembled inside the reduction gearbox, the reduction gearbox is provided with a linkage groove, a spigot on a front end cover of the motor needs to extend into the linkage groove to be matched with a spigot of a positioning block of the reduction gearbox, the positioning block of the reduction gearbox is positioned in the linkage groove and is annular, the positioning block of the reduction gearbox is fixed with a shell of the reduction gearbox, and an input shaft of the reduction gearbox is rotatably fixed in the positioning block of the reduction gearbox. In order to ensure that the spigot of the front end cover of the motor can be matched with the spigot of the positioning block of the reduction gearbox, an annular positioning ring needs to be formed on the front end cover of the motor, and in order to ensure the strength of the positioning ring, the positioning ring needs to be made very thick. The cast inner wall of the reduction gearbox needs to be processed to ensure the precision for the spigot matching; in order to reduce the processing amount, only the axial surface of the positioning ring is matched with the positioning block of the reduction gearbox, the circumferential outer wall of the positioning ring is not contacted with the wall of the linkage groove of the reduction gearbox body, and the circumferential outer wall of the positioning ring and the wall of the linkage groove do not need to be polished.
In order to realize the fixation of the front end cover of the motor and the reduction gearbox and ensure the coaxial precision, the front end cover of the motor needs to be larger and heavier, which is contrary to the aim of light weight requirement of the existing motor product, and the production cost is higher.
Disclosure of Invention
The utility model aims at providing a weight reduction end cover with low weight and low cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a weight-reducing end cover comprises an end cover body, wherein a shell and a reduction gearbox are respectively arranged on two axial sides of the end cover body, an axial through shaft hole is formed in the end cover body, a front side of the end cover body axially extends forwards to form a first positioning ring, at least two seam allowance structures are matched between the front end face of the first positioning ring and the rear end face of a box body of the reduction gearbox, at least two concave seam allowances or convex seam allowances are arranged on the front end face of the first positioning ring, a first groove which is concave towards the axial front side is formed on the rear end face of the end cover body, a bearing stop boss is formed in the middle of the end cover body, reinforcing ribs are connected between the circumferential inner wall of the first groove and the circumferential outer wall of the bearing stop boss, the axial groove face of the first groove is concave towards the axial front side to form a plurality of second grooves, the second grooves are positioned in the first positioning ring, and each reinforcing rib is positioned between, the cross sections of the second grooves are arc-shaped and are arranged at uniform intervals in an annular shape.
The utility model reduces the weight by forming the first groove on the end cover body, and ensures the strength of the bearing retainer by connecting the reinforcing rib between the groove wall of the first groove and the boss of the bearing retainer; the second groove is formed in the first positioning ring, so that the weight of the first positioning ring is reduced, and a structure that one end of the end cover body is heavy and the other end of the end cover body is light is avoided, and the weight is reduced. The utility model discloses an end cover can realize the lightweight, and required material still less in order to reduce in production cost.
Preferably, the thickness of the first positioning ring is gradually reduced from back to front. The first positioning ring is conical so as to reduce the weight of the first positioning ring as much as possible under the condition of ensuring the strength, thereby reducing the consumable material and the cost.
Preferably, the axial surface of the rear side of the end cover body comprises a rear outer ring part and a rear inner ring part, the surface of the rear outer ring part is located on the front side of the surface of the rear inner ring part, the rear inner ring part is in a circular ring shape, the inner edge of the rear inner ring part extends backwards to form a second positioning ring, the casing is provided with a seam allowance structure which is sleeved on the second positioning ring and matched with the second positioning ring, and the casing is fixed with the end cover body to enable the front end face of the casing to be in contact with the rear inner ring part.
The casing is fixed with the end cover body, so that the front end face of the casing is supported on the rear inner ring part, polishing of the rear outer ring part is not needed, and cost is reduced. And the surface of the rear outer ring part is positioned in front of the surface of the rear inner ring part, and the thickness of the outer edge of the end cover can be made lower, so that the production cost is reduced.
Preferably, a positioning block is formed on the inner wall of the first groove, an internal thread hole is formed in the positioning block in a rearward opening mode, the casing is matched with a rear end cover, a first fixing hole matched with the internal thread hole is formed in the rear end cover, and a first bolt penetrates through the first fixing hole and is fixed with the positioning block in a threaded mode so that the rear end cover, the casing and the end cover body are fixed. The motor is more compact by reasonably utilizing the space on the end cover body under the fixed condition of the rear end cover, the shell and the end cover body which can realize the motor.
Preferably, part of the reinforcing ribs are connected between the positioning block and the bearing stop boss. The structure of above-mentioned setting with make full use of end cover body to reduce the consumptive material under the circumstances of guaranteeing intensity.
Preferably, the front axial surface of the end cover body comprises a front outer ring part and a front inner ring part, the front outer ring part is located on the rear side of the front inner ring part, a second fixing hole is formed in the end cover body and penetrates through the front outer ring part forwards, the second fixing hole penetrates through the rear outer ring part backwards, and a second bolt penetrates through the second fixing hole to fix the end cover body and the reduction gearbox.
The box is with preceding outer annular portion contact, need not carry out preceding polishing of inner ring portion to reduction in production cost. Meanwhile, the inner ring of the end cover body is thicker than the outer ring, so that the thickness of the outer ring is reduced while the strength is ensured.
The utility model has the advantages of low weight, less material consumption and low cost.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a side view of the present invention;
fig. 3 is another isometric view of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
As shown in figures 1 to 3, the weight-reducing end cap of the utility model comprises an end cap body 1, a casing and a reduction gearbox are respectively arranged at two axial sides of the end cap body 1, the end cap body 1 is provided with an axial through shaft hole 10, the front side of the end cap body 1 axially extends forwards to form a first positioning ring 2, at least two seam allowance structures are matched between the front end surface of the first positioning ring 2 and the rear end surface of a box body of the reduction gearbox, at least two concave seam allowances 21 are arranged on the front end surface of the first positioning ring 2, a first groove 3 depressed towards the axial front side is formed on the rear end surface of the end cap body 1, a bearing baffle boss 4 is formed in the middle part of the end cap body 1, a reinforcing rib 30 is connected between the circumferential inner wall of the first groove 3 and the circumferential outer wall of the bearing baffle boss 4, the axial groove of the first groove 3 is depressed towards the axial front side to form a plurality of second grooves 31, the second grooves, each rib 30 is located between two adjacent second grooves 31. Wherein, the thickness of the first positioning ring 2 is gradually reduced from back to front. Wherein, the cross section of the second groove 32 is arc-shaped and is arranged at uniform intervals in a ring shape.
The axial surface of the back side of the end cover body 1 comprises a back outer ring part 51 and a back inner ring part 52, the surface of the back outer ring part 51 is located at the front side of the surface of the back inner ring part 52, the back inner ring part 52 is circular, the inner edge of the back inner ring part 52 extends backwards to form a second positioning ring 53, the casing is formed with a spigot structure which is sleeved on the second positioning ring 53 to be matched with the second positioning ring 53, and the casing is fixed with the end cover body 1 to enable the front end surface of the casing to be contacted with the back inner ring part 52.
A positioning block 32 is formed on the inner wall of the first groove 3, an internal thread hole 33 is formed in the rearward opening of the positioning block 32, a rear end cover is matched with the machine shell, a first fixing hole matched with the internal thread hole 33 is formed in the rear end cover, and a first bolt penetrates through the first fixing hole and then is fixed with the positioning block 32 through threads so as to fix the rear end cover, the machine shell and the end cover body 1. Wherein, part of the reinforcing ribs 30 are connected between the positioning block and the bearing block boss.
The front axial surface of the end cover body 1 comprises a front outer ring part 61 and a front inner ring part 62, the front outer ring part 61 is located on the rear side of the front inner ring part 62, a second fixing hole 63 is formed in the end cover body 1, the second fixing hole 63 penetrates through the front outer ring part 61 forwards, the second fixing hole 63 penetrates through the rear outer ring part 51 backwards, and a second bolt penetrates through the second fixing hole 63 to fix the end cover body 1 and a box body of the reduction gearbox.
The utility model has the advantages of low weight, less material consumption, small volume, less polishing surface and low cost.
Claims (6)
1. A weight-reducing end cover is characterized by comprising an end cover body, wherein a shell and a reduction gearbox are respectively arranged at two axial sides of the end cover body, an axial through shaft hole is formed in the end cover body, a front axial surface of the end cover body extends forwards to form a first positioning ring, at least two seam allowance structures are matched between the front end surface of the first positioning ring and the rear end surface of a box body of the reduction gearbox, at least two concave seam allowances or convex seam allowances are arranged on the front end surface of the first positioning ring, a first groove which is sunken towards the axial front side is formed on the rear end surface of the end cover body, a bearing baffle boss is formed in the middle of the end cover body, reinforcing ribs are connected between the circumferential inner wall of the first groove and the circumferential outer wall of the bearing baffle boss, the axial groove surface of the first groove is inwards sunken towards the axial front side to form a plurality of second grooves, and the second grooves are positioned, every strengthening rib is located between two adjacent second recesses, and a plurality of second recess transversal personally submit the arc and be the even interval setting of annular.
2. The weight-reducing end cap of claim 1, wherein the thickness of the first locator ring tapers from rear to front.
3. The weight-reducing end cap of claim 1, wherein the axial rear face of the end cap body comprises a rear outer ring portion and a rear inner ring portion, the rear outer ring portion is located at the front side of the rear inner ring portion, the rear inner ring portion is annular, the inner edge of the rear inner ring portion extends backwards to form a second positioning ring, the housing is formed with a seam allowance structure which is sleeved on the second positioning ring and matched with the second positioning ring, and the housing is fixed with the end cap body so that the front end face of the housing is in contact with the rear inner ring portion.
4. The weight-reducing end cover according to claim 3, wherein a positioning block is formed on the inner wall of the first groove, the positioning block is opened backwards to form an internal threaded hole, the casing is matched with the rear end cover, the rear end cover is formed with a first fixing hole matched with the internal threaded hole, and a first bolt passes through the first fixing hole and is fixed with the positioning block in a threaded manner so as to fix the rear end cover, the casing and the end cover body.
5. A weight-reducing end cap according to claim 4, wherein part of the reinforcing ribs are connected between the locating block and the bearing stop boss.
6. The weight-reducing end cover according to claim 3, wherein the front axial surface of the end cover body comprises a front outer ring part and a front inner ring part, the front outer ring part is located at the rear side of the front inner ring part, the end cover body is provided with a second fixing hole, the second fixing hole penetrates through the front outer ring part forwards, the second fixing hole penetrates through the rear outer ring part backwards, and a second bolt penetrates through the second fixing hole to fix the end cover body and the reduction gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205334.7U CN210183133U (en) | 2019-07-29 | 2019-07-29 | Weight-reducing end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205334.7U CN210183133U (en) | 2019-07-29 | 2019-07-29 | Weight-reducing end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210183133U true CN210183133U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921205334.7U Active CN210183133U (en) | 2019-07-29 | 2019-07-29 | Weight-reducing end cover |
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| Country | Link |
|---|---|
| CN (1) | CN210183133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024131641A1 (en) * | 2022-12-20 | 2024-06-27 | 浙江联宜电机有限公司 | Motor end cover and casing fixing structure |
-
2019
- 2019-07-29 CN CN201921205334.7U patent/CN210183133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024131641A1 (en) * | 2022-12-20 | 2024-06-27 | 浙江联宜电机有限公司 | Motor end cover and casing fixing structure |
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