CN203809620U - Belt scroll tensioning wheel - Google Patents
Belt scroll tensioning wheel Download PDFInfo
- Publication number
- CN203809620U CN203809620U CN201420229455.6U CN201420229455U CN203809620U CN 203809620 U CN203809620 U CN 203809620U CN 201420229455 U CN201420229455 U CN 201420229455U CN 203809620 U CN203809620 U CN 203809620U
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- CN
- China
- Prior art keywords
- swing arm
- hole
- belt
- scrollwork
- spring
- 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.)
- Withdrawn - After Issue
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a belt scroll tensioning wheel which comprises a first wheel and a second wheel. The first wheel and the second wheel are connected through a swing arm. The second wheel is connected with a belt. The first wheel comprises a shell fixed on a gear chamber cover and a scroll spring mounted in the shell. A spring fastening seat is disposed on the inner wall of the shell. A first sector through hole is formed in the peripheral surface of the shell. The scroll spring is scrolled by scroll leaf spring with a hollow hole. The hollow hole forms are second sector through hole. The outer end of the scroll spring is clamped to the spring fastening seat. The inner end of the scroll spring is detachably connected with the swing arm. The swing arm sequentially penetrates the first sector through hole and the second sector through hole. The scroll spring and the swing arm are connected to the central hole of the shell through a mandrel. Due to the fact that scroll spring is the hollow leaf spring, the swing arm is fixed in the middle of the tensioning wheel, and severe deformation caused by uneven stress on two sides of the scroll spring is avoided.
Description
Technical field
The utility model relates to mechanical field, particularly a kind of belt scrollwork Idle wheel.
Background technique
Belt scrollwork Idle wheel is the common part of diesel engine, and the belt scrollwork Idle wheel of prior art uses solid sheet spring conventionally, and swing arm need to be arranged on one end of the axle being connected with swing arm, easily causes the fierce distortion in two ends of spring.And different body (as gear chamber cover) or the different mounting points of being mounted are conventionally because of the orientation difference of the relative belt of pin, need corresponding multiple Idle wheel housing to mate with the installation site that is mounted body, so just need to design different making special toolings for the different bodies that is mounted.Therefore, Idle wheel is poor for applicability.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of belt scrollwork Idle wheel, and the spiral spring in this scrollwork Idle wheel is hollow out flat spring, causes the fierce shortcoming of being out of shape of spring thereby overcome solid sheet spring.
Another object of the present utility model is to provide a kind of belt scrollwork Idle wheel, the cover plate of this scrollwork Idle wheel is provided with the pin-and-hole of the relative bearing that can determine itself and gear chamber cover, the relative position of capable of regulating Idle wheel and gear chamber cover, realize multiple spot installation, thereby overcome the shortcoming poor for applicability of Idle wheel.
For achieving the above object, the utility model provides a kind of belt scrollwork Idle wheel, belt scrollwork Idle wheel comprises that the first round and second connecting by swing arm takes turns, second takes turns with belt and is connected, the first round comprises: shell, it is fixed on gear chamber cover, and the inwall of shell is provided with spring Button Block, and the circumferential surface of shell is provided with the first fan-shaped pylone; And spiral spring, it is installed in the enclosure; Spiral spring is formed by the scrollwork flat spring scrollwork with openwork hole, openwork hole forms the second fan-shaped pylone, the outer end of spiral spring is stuck on spring Button Block, the inner and the swing arm of spiral spring removably connect, swing arm is successively through the first fan-shaped pylone and the second fan-shaped pylone, and spiral spring and swing arm are connected on the center hole of shell by axle.
Preferably, in technique scheme, swing arm is provided with swing arm main body, and shell is provided with one or more the first fan-shaped pylones, and the quantity of the quantity of the second fan-shaped pylone, the quantity of swing arm main body and the first fan-shaped pylone is all identical.
Preferably, in technique scheme, shell comprises housing and the cover plate that is arranged on housing both sides, on two sides of housing, is respectively equipped with ring gear, and the outer peripheral surface of cover plate is provided with external toothing, and external toothing and ring gear are intermeshing.
Preferably, in technique scheme, the outer side surface of cover plate is provided with pin-and-hole, and pin is installed in pin-and-hole, and pin is arranged in the pin-and-hole of gear chamber cover simultaneously, so that cover plate and gear chamber cover are positioned.
Compared with prior art, the utlity model has following beneficial effect:
Spiral spring of the present utility model is hollow out flat spring, makes swing arm be fixed on the middle part of Idle wheel, the gross distortion of avoiding the both sides unbalance stress of spiral spring to cause; The end cap of both sides has identical structure, all has the pin-and-hole positioning with gear chamber cover, therefore can realize positive and negative and install, and facilitates complete machine supporting.
Brief description of the drawings
Fig. 1 is according to the first embodiment's of belt scrollwork Idle wheel of the present utility model erection drawing.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the structural drawing of the first embodiment's of belt scrollwork Idle wheel of the present utility model housing.
Fig. 4 is the right elevation of Fig. 3.
Fig. 5 is according to the structural drawing of the first embodiment's of belt scrollwork Idle wheel of the present utility model spiral spring.
Fig. 6 is the plan view of Fig. 5.
Fig. 7 is the structural drawing according to axle of the present utility model.
Fig. 8 is the structural drawing according to cover plate of the present utility model.
Fig. 9 is the right elevation of Fig. 8.
Figure 10 is according to the structural drawing of the first embodiment's of belt scrollwork Idle wheel of the present utility model swing arm.
Figure 11 is the plan view of Figure 10.
Figure 12 is the structural drawing according to screw of the present utility model.
Figure 13 is according to the structural drawing of the second embodiment's of belt scrollwork Idle wheel of the present utility model housing.
Figure 14 is according to the structural drawing of the second embodiment's of belt scrollwork Idle wheel of the present utility model spiral spring.
Figure 15 is according to the structural drawing of the second embodiment's of belt scrollwork Idle wheel of the present utility model swing arm.
Main description of reference numerals:
1-housing, 11-spring Button Block, 12-the first fan-shaped pylone, 121-the first hole wall, 122-the second hole wall, 13-ring gear, 2-spiral spring, 21-the first axle mounting hole, 22-the second fan-shaped pylone, 3-axle, 31-axle shelves groove, 32-center hole, 4-cover plate, 41-external toothing, 42-center hole, 43-pin-and-hole, 5-swing arm, 51-the second axle mounting hole, 52-swing arm main body, 6-pin, 7-dustproof sheet, 8-screw, 81-flange, 9-axle bumper, 10-second takes turns.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1, 2, belt scrollwork Idle wheel of the present utility model comprises that the first round and second takes turns 10, and the first round and second takes turns 10 and links together by swing arm 5.Second takes turns with belt and is connected, and the first round comprises housing 1, spiral spring 2, axle 3 and is fixed on the cover plate 5 on two sides of housing 1.
As shown in Figure 3,4, in the first embodiment of the present utility model, the inwall of housing 1 is provided with a spring Button Block 11, and the circumferential surface of housing 1 is provided with the first fan-shaped pylone 12, the first fan-shaped pylones 12 and comprises the first hole wall 121 and the second hole wall 122.On two sides of housing 1, be respectively equipped with ring gear 13.
As shown in Figure 5,6, in the first embodiment of the present utility model, spiral spring 2 is sub-circular by hollow out flat spring scrollwork, is provided with along its length an openwork hole on it, after scrollwork, openwork hole forms the second fan-shaped pylone 22, and the center of spiral spring 2 forms the first axle mounting hole 21.
As shown in Figure 7, the excircle at the two ends of axle 3 of the present utility model is provided with axle shelves groove 31, and the center of axle 3 is provided with center hole 32.
As shown in Figure 8,9, the center of cover plate 4 of the present utility model is provided with step hole 42, and its excircle is provided with external toothing 41, and the exterior edge face of cover plate 4 is provided with pin-and-hole 43.When installation, external toothing 41 engages with the ring gear 13 of housing 1, prevents that the two from producing relative rotation.
As shown in Figure 10,11, in the first embodiment of the present utility model, the part being connected with the first round in swing arm 5 is provided with a swing arm main body 52, and the end of swing arm main body 52 is provided with the second axle mounting hole 51.
As shown in figure 12, screw 8 is provided with flange 81, for positioning action is provided when mounted.
Swing arm 5 is successively through the first fan-shaped pylone 12 of housing 1, the second fan-shaped pylone 22 of spiral spring 2.The outer end of spiral spring 2 is stuck on the spring Button Block 11 of housing 1, and inner and swing arm 5 removably connects.Axle 3 is arranged on the step hole 42 of cover plate 4, the first axle mounting hole 21 of spiral spring 2, the second axle mounting hole 51 of swing arm 5, and the interior installation shaft shelves 9 respectively of the axle shelves groove 31 at axle 3 two ends, and center roller 3 carries out spacing.Screw 8 is arranged in the center hole of axle 3, and cover plate 4 butts of its flange 81 and a side, the helical thread portion of screw 8 be mounted body (as gear chamber cover) and be fixedly connected with.Gear chamber cover is provided with the pin-and-hole with pin-and-hole 43 adaptations of cover plate 4, and pin 6 is arranged in the pin-and-hole 43 of cover plate 4 and the pin-and-hole of gear chamber cover simultaneously, and cover plate 4 and gear chamber cover are positioned.On the first fan-shaped pylone 12, dustproof sheet 7 is installed, swing arm main body 52 is through the through hole on dustproof sheet 7, and dustproof sheet 7 rotates with the rotation of swing arm.
As another embodiment, on spiral spring 2, be provided with along its length two openwork holes, form two the second fan-shaped pylones 21, correspondingly, housing 1 is provided with two spring Button Blocks 11 and two the first fan-shaped pylones 12, and swing arm 5 is simultaneously provided with two swing arm main bodys 52.Can alleviate like this overall weight of Idle wheel, be convenient to carrying and install.
Because spiral spring 2 has certain pretightening force, in the time that rotating with respect to housing 1, swing arm 5 produces torque, realize the tensioning of belt.Because cover plate 4 is fixing for gear ring engages with housing 1, in the time that the installation operating mode of Idle wheel and belt pulley changes, can change the engaging position of pin-and-hole 43 and housing 1 time, and then change the relative position of housing 1 and gear chamber cover, the rotational orientation of swing arm 5 also changes thereupon, changed the installation site of Idle wheel, realized the multiple spot of Idle wheel and installed, the applicability of Idle wheel is better like this.
Spiral spring of the present utility model is hollow out flat spring, makes swing arm be fixed on the middle part of Idle wheel, the gross distortion of avoiding the both sides unbalance stress of spiral spring to cause; The end cap of both sides has identical structure, all has the pin-and-hole positioning with gear chamber cover, therefore can realize positive and negative and install, and facilitates complete machine supporting.
The aforementioned description to concrete exemplary of the present utility model is in order to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present utility model and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present utility model and various selection and change.Scope of the present utility model is intended to be limited by claims and equivalents thereof.
Claims (4)
1. a belt scrollwork Idle wheel, described belt scrollwork Idle wheel comprises that the first round and second connecting by swing arm takes turns, and described second takes turns with belt and is connected, and it is characterized in that, and the described first round comprises:
Shell, it is fixed on gear chamber cover, and the inwall of described shell is provided with spring Button Block, and the circumferential surface of described shell is provided with the first fan-shaped pylone; And
Spiral spring, it is arranged in described shell; Described spiral spring is formed by the scrollwork flat spring scrollwork with openwork hole, described openwork hole forms the second fan-shaped pylone, the outer end of described spiral spring is stuck on described spring Button Block, the inner of described spiral spring and described swing arm removably connect, described swing arm is successively through described the first fan-shaped pylone and described the second fan-shaped pylone, and described spiral spring and described swing arm are connected on the center hole of described shell by axle.
2. belt scrollwork Idle wheel according to claim 1, it is characterized in that, described swing arm is provided with swing arm main body, described shell is provided with one or more described the first fan-shaped pylones, and the quantity of the quantity of described the second fan-shaped pylone, the quantity of described swing arm main body and described the first fan-shaped pylone is all identical.
3. belt scrollwork Idle wheel according to claim 1 and 2, it is characterized in that, described shell comprises housing and is arranged on the cover plate of described housing both sides, on two sides of described housing, be respectively equipped with ring gear, the outer peripheral surface of described cover plate is provided with external toothing, and described external toothing and described ring gear are intermeshing.
4. belt scrollwork Idle wheel according to claim 3, it is characterized in that, the outer side surface of described cover plate is provided with pin-and-hole, and pin is installed in described pin-and-hole, described pin is arranged in the pin-and-hole of described gear chamber cover simultaneously, so that described cover plate and described gear chamber cover are positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229455.6U CN203809620U (en) | 2014-05-07 | 2014-05-07 | Belt scroll tensioning wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229455.6U CN203809620U (en) | 2014-05-07 | 2014-05-07 | Belt scroll tensioning wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809620U true CN203809620U (en) | 2014-09-03 |
Family
ID=51448374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229455.6U Withdrawn - After Issue CN203809620U (en) | 2014-05-07 | 2014-05-07 | Belt scroll tensioning wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953701A (en) * | 2014-05-07 | 2014-07-30 | 广西玉柴机器股份有限公司 | Belt volute tensioning wheel |
-
2014
- 2014-05-07 CN CN201420229455.6U patent/CN203809620U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953701A (en) * | 2014-05-07 | 2014-07-30 | 广西玉柴机器股份有限公司 | Belt volute tensioning wheel |
| CN103953701B (en) * | 2014-05-07 | 2016-06-08 | 广西玉柴机器股份有限公司 | A kind of belt scrollwork regulating wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |