CN210769800U - Gear shaft with dustproof cover - Google Patents
Gear shaft with dustproof cover Download PDFInfo
- Publication number
- CN210769800U CN210769800U CN201921039364.5U CN201921039364U CN210769800U CN 210769800 U CN210769800 U CN 210769800U CN 201921039364 U CN201921039364 U CN 201921039364U CN 210769800 U CN210769800 U CN 210769800U
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- wall
- box
- protective cover
- protective
- 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
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000006978 adaptation Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- General Details Of Gearings (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a gear shaft with a dustproof cover in the technical field of the gear shaft with the dustproof cover, which comprises a gear shaft, wherein a gear is fixedly arranged on the left side of the outer wall of the gear shaft, a key groove is arranged in the middle of the outer wall of the gear shaft, the right end outer wall of the gear shaft is assembled with a box body, a protective box is nested in the assembly position of the box body and the gear shaft, an installation convex ring fixedly connected with the box body is fixedly arranged on the outer wall of the protective box, a bearing fixedly assembled with the gear shaft is nested in the protective box, protective covers matched with the gear shaft are screwed on the left side and the right side of the protective box, a sealing component is nested in the assembly position of the protective cover and the gear shaft, a blocking felt is assembled between the protective cover and the box body, dust is prevented from permeating through an assembly gap between the gear shaft and the protective cover, and a blocking felt, the dust can effectively enter the box body through the gap, the protection to the gear shaft is improved, and the dustproof effect is good.
Description
Technical Field
The utility model relates to a take pinion technical field of shield specifically is a take pinion of shield.
Background
The gear shaft refers to a mechanical part which supports a rotating part and rotates together with the rotating part to transfer motion, torque or bending moment, some existing gear shafts penetrate through the box body and then are connected with the box body through the connecting part of the bearing and the box body, however, in the connecting mode, a gap exists at the penetrating part of the bearing and the box body, dust outside the box body easily enters the box body through the gap, the dust protection effect on the dust is not good, the sealing performance is poor, and therefore the gear shaft with the dust cover is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take pinion of shield to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take tooth axle of shield, includes the tooth axle, the fixed gear that is provided with in left side on the outer wall of tooth axle, the keyway has been seted up in the middle of the outer wall of tooth axle, the right-hand member outer wall of tooth axle is equipped with the box, the nested guard box that is provided with in assembly department of box and tooth axle, the fixed installation bulge loop that is provided with box fixed connection on the outer wall of guard box, the nested bearing that is provided with the fixed assembly of tooth axle in the guard box, the equal spiro union in the left and right sides of guard box has the protective cover with tooth axle looks adaptation, just the nested seal assembly that is provided with in assembly department of protective cover and tooth axle, be equipped with between protective cover and the box and.
Preferably, the protective cover is provided with an assembly hole matched with the gear shaft, and the inner wall of the assembly hole is provided with an annular accommodating groove matched with the sealing component.
Preferably, seal assembly is including the interior protective shroud of latent escape setting in the holding tank, fixed bonding has wear-resisting cover on the inner wall of interior protective shroud, fixed bonding has rubber packing pad on the outer wall of interior protective shroud, fixed bonding has outer protective shroud on rubber packing pad's the outer wall, rubber packing pad's inner chamber nestification is provided with the pressure spring.
Preferably, the compression spring is uniformly arranged into ten groups of structures with the same structure along the circumferential direction of the rubber sealing gasket, and a buffer groove matched with the compression spring is formed in the inner cavity of the rubber sealing gasket.
Preferably, the outer screw thread section has been seted up on the outer wall of guard box, just set up on the inner wall of protective cover with the internal thread section of external screw thread section adaptation, just the external diameter looks adaptation of protective cover and guard box.
Preferably, all offer and block felt matched with joint groove on the outer wall of protective cover and the relative one side lateral wall of box and protective cover.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, be convenient for realize the protection to the bearing at the bearing outside assembly guard box with the pinion assembly, can increase the separation nature to the dust simultaneously, in addition, the equal spiro union in the guard box left and right sides has the protective cover, can improve the effect of blockking to the dust, and nested between protective cover and the pinion is provided with seal assembly, prevent that the dust from passing through the assembly gap infiltration between pinion and the protective cover, be equipped with simultaneously and block the felt between protective cover and box, can effectually make the dust can't get into in the box through gap department, the protection to the pinion has been improved, it is dustproof effectual.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the sealing assembly of the present invention.
In the figure: 1 gear shaft, 2 gears, 3 key grooves, 4 boxes, 5 mounting convex rings, 6 protection boxes, 7 bearings, 8 protection covers, 9 sealing components, 91 inner protection rings, 92 wear-resistant sleeves, 93 rubber sealing gaskets, 94 outer protection rings, 95 compression springs and 10 blocking felts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a gear shaft with a dust cover comprises a gear shaft 1, a gear 2 is fixedly arranged on the left side of the outer wall of the gear shaft 1, a key groove 3 is formed in the middle of the outer wall of the gear shaft 1, a box body 4 is assembled on the outer wall of the right end of the gear shaft 1, a protection box 6 is nested in the assembly position of the box body 4 and the gear shaft 1, an installation convex ring 5 fixedly connected with the box body 4 is fixedly arranged on the outer wall of the protection box 6, a bearing 7 fixedly assembled with the gear shaft 1 is nested in the protection box 6, protective covers 8 matched with the gear shaft 1 are respectively screwed on the left side and the right side of the protection box 6, a sealing assembly 9 is nested in the assembly position of the protective covers 8 and the gear shaft 1, a blocking felt 10 is assembled between the protective covers 8 and the box body 4, the protection box 6 is assembled outside the bearing 7 assembled with the gear shaft 1 so as to conveniently realize the protection of the bearing 7, the blocking performance of dust can be improved, can improve the effect of blockking to the dust, also be convenient for simultaneously install and dismantle to nested seal assembly 9 that is provided with between protective cover 8 and the tooth axle 1 prevents that the dust from passing through the assembly gap infiltration between tooth axle 1 and the protective cover 8, is equipped with simultaneously and blocks felt 10 between protective cover 8 and box 4, can effectually make the dust can't get into in the box 4 through gap department, has improved the protection to tooth axle 1, and is dustproof effectual.
Referring to fig. 1, a protective cover 8 is provided with an assembly hole matched with the gear shaft 1, and an inner wall of the assembly hole is provided with an annular accommodating groove matched with the sealing component 9, so that dust is prevented from permeating through an assembly gap between the gear shaft 1 and the protective cover 8 through the sealing component 9;
referring to fig. 2, the sealing assembly 9 includes an inner protective ring 91 which is arranged in the accommodating groove in a hidden-escaping manner, a wear-resistant sleeve 92 is fixedly bonded on the inner wall of the inner protective ring 91, a rubber sealing gasket 93 is fixedly bonded on the outer wall of the inner protective ring 91, an outer protective ring 94 is fixedly bonded on the outer wall of the rubber sealing gasket 93, a pressure spring 95 is nested in an inner cavity of the rubber sealing gasket 93, friction loss between the sealing assembly 9 and the gear shaft 1 is reduced through the wear-resistant sleeve 92, meanwhile, the extrusion degree of the sealing assembly 9 to the gear shaft 1 is provided through compressibility of the rubber sealing gasket 93, the extrusion degree can be increased through the pressure spring 95, the fitting degree between the gear shaft 1 and the sealing assembly 9 is improved, and the sealing performance is improved;
referring to fig. 2, ten groups of structures with the same structure are uniformly arranged on the compression spring 95 along the circumferential direction of the rubber sealing gasket 93, and a buffer groove matched with the compression spring 95 is formed in the inner cavity of the rubber sealing gasket 93, so that the sealing assembly 9 has extrusion force on the gear shaft 1 in the circumferential direction, and the fitting degree of the sealing assembly 9 and the gear shaft 1 is increased;
an external thread section is arranged on the outer wall of the protection box 6, an internal thread section matched with the external thread section is arranged on the inner wall of the protection cover 8, and the protection cover 8 is matched with the outer diameter of the protection box 6, so that the protection cover 8 and the protection box 6 can be conveniently installed and detached;
all offer and block felt 10 matched with joint groove on the outer wall of protective cover 8 and box 4 and protective cover 8's the relative side lateral wall, improved and blockked the assembly steadiness between felt 10 and protective cover 8 and the box 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a take pinion of shield, includes pinion (1), its characterized in that: fixed gear (2) that is provided with in left side on the outer wall of tooth axle (1), keyway (3) have been seted up in the middle of the outer wall of tooth axle (1), the right-hand member outer wall of tooth axle (1) is equipped with box (4), the nested guard box (6) that is provided with in assembly department of box (4) and tooth axle (1), fixed be provided with on the outer wall of guard box (6) with box (4) fixed connection's installation bulge loop (5), nested bearing (7) that is provided with tooth axle (1) fixed assembly in guard box (6), the equal spiro union in the left and right sides of guard box (6) has protective cover (8) with tooth axle (1) looks adaptation, just the nested seal assembly (9) that is provided with in assembly department of protective cover (8) and tooth axle (1), be equipped with between protective cover (8) and the box (4) and block felt (10).
2. The gear shaft with the dust cover as claimed in claim 1, wherein: offer on protective cover (8) with gear shaft (1) matched with pilot hole, and offer on the inner wall of pilot hole with seal assembly (9) matched with annular holding tank.
3. The gear shaft with the dust cover as claimed in claim 2, wherein: seal assembly (9) are including latent interior protective shroud (91) of escaping the setting in the holding tank, fixed bonding has wear-resisting cover (92) on the inner wall of interior protective shroud (91), fixed bonding has rubber packing pad (93) on the outer wall of interior protective shroud (91), fixed bonding has outer protective shroud (94) on the outer wall of rubber packing pad (93), the inner chamber nestification of rubber packing pad (93) is provided with pressure spring (95).
4. The gear shaft with the dust cover as claimed in claim 3, wherein: the pressure spring (95) is evenly set to ten groups of structures with the same structure along the circumferential direction of the rubber sealing gasket (93), and a buffer groove matched with the pressure spring (95) is formed in the inner cavity of the rubber sealing gasket (93).
5. The gear shaft with the dust cover as claimed in claim 1, wherein: the outer screw thread section has been seted up on the outer wall of guard box (6), just set up on the inner wall of protective cover (8) with the internal thread section of external screw thread section adaptation, just the external diameter looks adaptation of protective cover (8) and guard box (6).
6. The gear shaft with the dust cover as claimed in claim 1, wherein: the outer wall of protective cover (8) and the relative lateral wall of box (4) and protective cover (8) all seted up and block felt (10) matched with joint groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921039364.5U CN210769800U (en) | 2019-07-05 | 2019-07-05 | Gear shaft with dustproof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921039364.5U CN210769800U (en) | 2019-07-05 | 2019-07-05 | Gear shaft with dustproof cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210769800U true CN210769800U (en) | 2020-06-16 |
Family
ID=71039006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921039364.5U Expired - Fee Related CN210769800U (en) | 2019-07-05 | 2019-07-05 | Gear shaft with dustproof cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210769800U (en) |
-
2019
- 2019-07-05 CN CN201921039364.5U patent/CN210769800U/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: 20200616 |