CN203335777U - Anti-dust device of tensioning wheel - Google Patents
Anti-dust device of tensioning wheel Download PDFInfo
- Publication number
- CN203335777U CN203335777U CN2013203956643U CN201320395664U CN203335777U CN 203335777 U CN203335777 U CN 203335777U CN 2013203956643 U CN2013203956643 U CN 2013203956643U CN 201320395664 U CN201320395664 U CN 201320395664U CN 203335777 U CN203335777 U CN 203335777U
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- China
- Prior art keywords
- idle wheel
- dust cover
- construction section
- dust
- limited step
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to an anti-dust device of a tensioning wheel. The anti-dust device comprises a tensioning wheel and a supporting shaft, the middle section of the supporting shaft is a limit step, a left shaft section of the limit step is an installing fixing section provided with threads, a right shaft section of the limit step comprises a tensioning wheel installing section and an anti-dust cover installing section from left to right in sequence, wherein the diameter of the anti-dust cover installing section is smaller than that of the tensioning wheel installing section, the anti-dust cover installing section is provided with threads, the tensioning wheel is arranged on the tensioning wheel installing section in a matched mode through a bearing and is limited through the limit step, and an anti-dust cover is assembled on the anti-dust cover installing section, covers the right end face of the tensioning wheel and is positioned through a locking nut. The anti-dust device of the tensioning wheel is easy to manufacture and good in anti-dust effect.
Description
Technical field
The utility model relates to the belt transmission field, particularly a kind of Idle wheel dust guard for the transmission of refuse collector band.
Background technique
The motor of refuse collector arrives oil hydraulic pump by belt driver by transmission of power, but belt can wear and tear gradually and be elongated in rotation process, make belt generation permanent deformation and relaxation phenomenon is arranged, pretension is reduced, transmission capacity descends, therefore belt drive unit is provided with the efficiency that Idle wheel guarantees that belt transmits.Idle wheel circumferentially is fixed on back shaft by bearing, because Idle wheel is arranged on the chassis below of refuse collector, when Vehicle Driving Cycle, a large amount of mud, dust etc. are involved in Idle wheel, cause the bearing clamping stagnation, make Idle wheel rotate dumb, reduced Belt Transmission Efficiency, and can cause reduce the working life of bearing, Idle wheel.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of Idle wheel dust guard is provided, and makes simply good dustproof effect.
The technical solution of the utility model is: a kind of Idle wheel dust guard, comprise Idle wheel and back shaft, the stage casing of described back shaft is limited step, the left side shaft part of limited step is for establishing threaded installation holding part, the right shaft part of limited step is followed successively by Idle wheel construction section and dust cover construction section vertically from left to right, wherein the diameter of dust cover construction section is less than the Idle wheel construction section, the dust cover construction section is provided with screw thread, Idle wheel by bearing fit on the Idle wheel construction section and spacing by limited step, one dust cover is assemblied on the dust cover construction section and covers the Idle wheel right side, and locate with locking nut.
The limited step of described back shaft is provided with two symmetrical cutting surfaces, and the installation holding part of back shaft is provided with two symmetrical cutting surfaces.
The right side of described Idle wheel is provided with the defining flange extended to axle center, and the left side of Idle wheel is provided with spacing draw-in groove, in spacing draw-in groove, is provided with limited location snap ring, Idle wheel by defining flange and limited location snap ring axially locating on bearing.
The center in described dust cover left side is provided with a positive stop lug boss, and positive stop lug boss is by the shaft shoulder location of Idle wheel construction section, and dust cover separates by this positive stop lug boss and Idle wheel.
The cylindrical of described dust cover is towards the Idle wheel flanging.
Described dust cover construction section is provided with a cotter pin, and in cotter pin, assembling one pin is spacing to locking nut.
Adopt technique scheme: Idle wheel by bearing fit on the Idle wheel construction section and spacing by limited step, one dust cover is assemblied on the dust cover construction section and covers the Idle wheel right side, bearing is blocked by Idle wheel and dust cover, in the time of can effectively preventing Vehicle Driving Cycle, mud, dust etc. are involved in Idle wheel and cause the bearing clamping stagnation, guaranteeing that Idle wheel rotates the working life that has simultaneously extended Idle wheel and bearing normally, dust cover is located with locking nut.
The limited step of described back shaft is provided with two symmetrical cutting surfaces, is convenient to clamping when back shaft is installed, and the installation holding part of back shaft is provided with two symmetrical cutting surfaces, can be circumferentially spacing to back shaft when the installation holding part is engaged in bar hole.
The cylindrical of described dust cover, towards the Idle wheel flanging, effectively prevents that mud, dust etc. are involved in Idle wheel from the gap between dust cover and Idle wheel.
Below in conjunction with the drawings and specific embodiments, be further described.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The sectional view that Fig. 2 is Fig. 1;
The A that Fig. 3 is Fig. 1 is to structural representation.
In accompanying drawing, 1 is Idle wheel, and 2 is back shaft, and 3 is limited step, and 4 for installing holding part, 5 is the Idle wheel construction section, and 6 is the dust cover construction section, and 7 is dust cover, and 8 is locking nut, and 9 is defining flange, 10 is spacing draw-in groove, and 11 is limited location snap ring, and 12 is positive stop lug boss, and 13 is cotter pin, and 14 is pin.
Embodiment
Referring to Fig. 1 to Fig. 3, a kind of Idle wheel dust guard, comprise Idle wheel 1 and back shaft 2.The stage casing of described back shaft 2 is limited step 3, and the limited step 3 of back shaft 2 is provided with two symmetrical cutting surfaces, also is provided with a tapped through hole on limited step 3.The left side shaft part of limited step 3 is for establishing threaded installation holding part 4, and the installation holding part 4 of back shaft 2 is provided with two symmetrical cutting surfaces.The right shaft part of limited step 3 is followed successively by Idle wheel construction section 5 and dust cover construction section 6 vertically from left to right, and wherein the diameter of dust cover construction section 6 is less than Idle wheel construction section 5, and dust cover construction section 6 is provided with screw thread.Idle wheel 1 by bearing fit on Idle wheel construction section 5 and spacing by limited step 3, the right side of described Idle wheel 1 is provided with the defining flange 9 extended to axle center, the left side of Idle wheel is provided with spacing draw-in groove 10, be provided with limited location snap ring 11 in spacing draw-in groove 10, Idle wheel 1 by defining flange 9 and limited location snap ring 11 axially locating on bearing.One dust cover 7 is assemblied on dust cover construction section 6 and covers Idle wheel 1 right side, the center in described dust cover 7 left sides is provided with a positive stop lug boss 12, positive stop lug boss 12 is by the shaft shoulder location of Idle wheel construction section 5, dust cover 7 separates with Idle wheel 1 by this positive stop lug boss 12, the cylindrical of dust cover 7 is towards Idle wheel 1 flanging, dust cover 7 use locking nut 8 location, for preventing that locking nut 8 from coming off in the process of using, dust cover construction section 6 is provided with a cotter pin 13, the present embodiment, this cotter pin is flat mouthful of pin, in cotter pin 13,14 pairs of locking nuts 8 of assembling one pin are spacing.
During installation, the oil hydraulic pump of belt driver is rack-mount, and support is provided with a L shaped arm, the long-armed bar hole that is provided with of L shaped arm, and galianconism is provided with a through hole.Be assemblied in the bar hole on long-armed by the installation holding part 4 of back shaft 2 and use nut locking, it is corresponding that two cutting surfaces that the symmetry that arranges on holding part is installed and two of bar hole are grown limits, to back shaft 2 play a part one circumferential spacing.With a rotary screw through the through hole on galianconism after with the limited step 3 of back shaft on the tapped through hole screw-thread fit, the installation holding part of this rotary screw and back shaft is to back shaft cross shot, one nut check of this rotary screw.By clip, be held on two cutting surfaces of limited step in order to clamp back shaft, circumferential fixing bearing on Idle wheel construction section 5, be assemblied in Idle wheel on bearing and with limited location snap ring 11 chucking Idle wheels.Assembling dust cover 7 on dust cover construction section 6, the positive stop lug boss 12 at dust cover center is spacing by limited step 3, dust cover 7 and Idle wheel 1 are separated, screw in 8 pairs of dust covers of locking nut, 7 location on dust cover construction section 6, insert 14 pairs of locking nuts 8 of pin spacing in cotter pin 13.
Anti-dust performance of the present utility model is good, can effectively avoid mud, sewage, dust etc. to enter bearing, improves the working life of bearing, thereby improve the working life of Idle wheel, it makes simple, with short production cycle and safe and reliable, can effectively avoid dust cover to come off on the dust cover construction section.
Claims (6)
1. an Idle wheel dust guard, comprise Idle wheel (1) and back shaft (2), it is characterized in that: the stage casing of described back shaft (2) is limited step (3), the left side shaft part of limited step (3) is for establishing threaded installation holding part (4), the right shaft part of limited step (3) is followed successively by Idle wheel construction section (5) and dust cover construction section (6) vertically from left to right, wherein the diameter of dust cover construction section (6) is less than Idle wheel construction section (5), dust cover construction section (6) is provided with screw thread, Idle wheel (1) is upper and spacing by limited step (3) at Idle wheel construction section (5) by bearing fit, one dust cover (7) is assemblied on dust cover construction section (6) and covers Idle wheel (1) right side, and locate with locking nut (8).
2. Idle wheel dust guard according to claim 1 is characterized in that: the limited step (3) of described back shaft (2) is provided with two symmetrical cutting surfaces, and the installation holding part (4) of back shaft (2) is provided with two symmetrical cutting surfaces.
3. Idle wheel dust guard according to claim 1, it is characterized in that: the right side of described Idle wheel (1) is provided with the defining flange (9) extended to axle center, the left side of Idle wheel is provided with spacing draw-in groove (10), be provided with limited location snap ring (11) in spacing draw-in groove (10), Idle wheel (1) by defining flange (9) and limited location snap ring (11) axially locating on bearing.
4. Idle wheel dust guard according to claim 1, it is characterized in that: the center in described dust cover (7) left side is provided with a positive stop lug boss (12), positive stop lug boss (12) is by the shaft shoulder location of Idle wheel construction section (5), and dust cover (7) separates by this positive stop lug boss (12) and Idle wheel (1).
5. Idle wheel dust guard according to claim 1, it is characterized in that: the cylindrical of described dust cover (7) is towards Idle wheel (1) flanging.
6. Idle wheel dust guard according to claim 1, it is characterized in that: described dust cover construction section (6) is provided with a cotter pin (13), and in cotter pin (13), assembling one pin (14) is spacing to locking nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203956643U CN203335777U (en) | 2013-07-04 | 2013-07-04 | Anti-dust device of tensioning wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203956643U CN203335777U (en) | 2013-07-04 | 2013-07-04 | Anti-dust device of tensioning wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335777U true CN203335777U (en) | 2013-12-11 |
Family
ID=49704453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203956643U Expired - Lifetime CN203335777U (en) | 2013-07-04 | 2013-07-04 | Anti-dust device of tensioning wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377497A (en) * | 2017-07-28 | 2017-11-24 | 朱明� | A kind of supporting carrier roller mounting structure |
| CN108772831A (en) * | 2018-09-10 | 2018-11-09 | 苏州小工匠机器人有限公司 | Robot device |
-
2013
- 2013-07-04 CN CN2013203956643U patent/CN203335777U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377497A (en) * | 2017-07-28 | 2017-11-24 | 朱明� | A kind of supporting carrier roller mounting structure |
| CN108772831A (en) * | 2018-09-10 | 2018-11-09 | 苏州小工匠机器人有限公司 | Robot device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |