CN202531686U - Backstop - Google Patents
Backstop Download PDFInfo
- Publication number
- CN202531686U CN202531686U CN 201220192911 CN201220192911U CN202531686U CN 202531686 U CN202531686 U CN 202531686U CN 201220192911 CN201220192911 CN 201220192911 CN 201220192911 U CN201220192911 U CN 201220192911U CN 202531686 U CN202531686 U CN 202531686U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- retainer
- wedge
- shaped blocks
- return device
- 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
Images
Landscapes
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
The utility model relates to a device which is a security component in a large-sized belt conveyor and can prevent the conveyor from reversing when the conveyor stops, and especially relates to a backstop. The backstop is composed of an outer ring, an inner ring, a retainer and a cylindrical roller which are assembled together, wherein the retainer is fixed on the inner ring, and the cylindrical roller is matched on the retainer; and the backstop is characterized in that internal cylindrical surface grooves (the axes thereof are parallel to the axis of the inner ring) are uniformly distributed on the external cylindrical surface of the inner ring, wedged blocks with cylindrical surfaces contacted with the inner and outer rings are arranged between the outer ring and the inner ring, a torsion spring by which the surface of the wedged block is always contacted with the surface of the outer ring is matched to the wedged block, the two ends of the wedged block are respectively provided with a shaft, and the shafts of each wedged block are arranged in shaft holes of the retainer. According to the utility model, the backstop is provided with a lower pair structure, and the contact between the inner ring of the backstop and the wedged block is a lower pair contact, thereby reducing the working stress, improving the strength and reducing the appearance size.
Description
Technical field
The utility model relates to the safety component in a kind of large belt conveyor, the device that conveyor reverses in the time of can preventing the conveyor parking, especially relates to a kind of non-return device.
Background technique
At present, the type of the non-return device that adopts is both at home and abroad pressed the pattern branch of check part, mainly contains roller type, Wedge plate type; The non-return device of these two kinds of forms is higher pair with the inside and outside circle of non-return device and contacts when check is worked, and area of contact is little, contact stress is big; When the high pulling torque check requires,, improve the intensity of non-return device in order to reduce contact stress; The contacting point radius of curvature of big Internal and external cycle, wedge-shaped blocks just must be arranged, make that like this profile of non-return device is bigger, manufacturing is difficult, cost is high.Particularly, inner ring is an outer contacting with contacting of wedge-shaped blocks, and under equal conditions the working stress than interior contact is big, is the strength weak link of non-return device therefore, has restricted the miniaturization of non-return device.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes existing technology, thus provide a kind of have low auxiliary structure, to make non-return device inner ring and contacting of wedge-shaped blocks be that lower pair contact reduces working stress, improves intensity, reduces a kind of non-return device of boundary dimension.
The utility model is realized through following mode:
A kind of non-return device; It is by outer ring, inner ring; The retainer of fixing on the inner ring, the cylindrical roller that cooperates on the retainer assembles, and it is characterized in that: on the external cylindrical surface of above-mentioned inner ring, be evenly distributed with the axis inner cylindrical surface groove parallel with inner ring axis; Between outer ring and inner ring, be equipped with and contact the wedge-shaped blocks that is the cylndrical surface with inside and outside circle; Be combined with the torque spring that the surface that makes wedge-shaped blocks contact with outer ring surface all the time on the wedge-shaped blocks, the two ends of wedge-shaped blocks are designed with axle, spool being installed in the axis hole of said retainer of each wedge-shaped blocks;
The cylndrical surface diameter of said wedge-shaped blocks and said inner ring contacting point equals the diameter of the cylndrical surface groove on the inner ring external cylindrical surface;
Said retainer and said inner ring adopt cylndrical surface seam and straight pin location, and retainer and said inner ring connect as one through bolt;
The cylindrical roller that cooperates on the said retainer is that rolling pair is connected with said outer ring.
The utility model has following effect:
1) structure is unique: the utility model, evenly distributes and processes the inner cylindrical surface groove of equivalent amount on the external cylindrical surface of inner ring according to the quantity of non-return device wedge-shaped blocks, and its axis should be parallel with inner ring axis.Wedge-shaped blocks is processed into to contact with inside and outside circle and is the cylndrical surface; Wedge-shaped blocks is installed between the inside and outside circle; Equal the diameter of the cylndrical surface groove on the inner ring external cylindrical surface with the cylndrical surface diameter of inner ring contacting point, be Spielpassung, then inner ring is that the cylndrical surface contacts with wedge-shaped blocks---the lower pair contact.The wedge-shaped blocks two ends are designed with axle, and each wedge-shaped blocks axle is installed in the axis hole of retainer, and retainer and inner ring adopt cylndrical surface seam and straight pin accurately to locate, and adopt bolt to connect retainer and inner ring are connected as one, and rotate with inner ring.Roller is installed on the retainer, and roller is that rolling pair is connected with the outer ring, and inside and outside circle has relatively accurate position during with the running of assurance non-return device.Like this, during the conveyor running, non-return device is running well, and wedge-shaped blocks rotates with inner ring, retainer, and roller rolls across at inner surface, and wedge-shaped blocks slips over inner surface.When conveyor stops, carry at conveyor under the effect of material, conveyor possibly reverse, and non-return device reverses thereupon, and this moment, the wedge-shaped blocks check prevented counter-rotating.
2) intensity of increase non-return device improves check moment, perhaps under identical check moment, reduces the boundary dimension of non-return device; Lower manufacture difficulty, reduce cost: because the utility model inner ring has adopted the lower pair cylndrical surface to contact with wedge-shaped blocks; Make area of contact increase greatly, greatly reduced surperficial working stress, so wedge-shaped blocks and inner ring contact radius can be smaller; And can obtain bigger with the radius of the cylndrical surface of contacting point, outer ring; Thereby under identical inside and outside circle size, can obtain lower outer ring contact stress, increase the intensity of non-return device, improve check moment; Perhaps under identical check moment, reduce the boundary dimension of non-return device, lower manufacture difficulty, reduce cost.
3) with weak link---the way of contact of inner ring and wedge-shaped blocks of present non-return device; Change into the lower pair contact by the higher pair contact; Thereby in the space of Internal and external cycle size constancy, can obtain the bigger wedge-shaped blocks and the contact radius of outer ring, reduce the working stress of non-return device; Improved intensity, check moment.Perhaps under identical check moment, reduce the boundary dimension of non-return device, lower manufacture difficulty, reduce cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
A kind of non-return device; It is by outer ring 1, inner ring 5; The retainer of fixing on the inner ring 56, the cylindrical roller 2 that cooperates on the retainer 6 assembles, and is as shown in Figure 1: the inner cylindrical surface groove that on the external cylindrical surface of above-mentioned inner ring 5, is evenly distributed with axis and inner ring 5 parallel axes; Between outer ring 1 and inner ring 5, be equipped with and contact the wedge-shaped blocks 3 that is the cylndrical surface with inside and outside circle; Be combined with the torque spring 4 that the surface that makes wedge-shaped blocks 3 contact with surface, outer ring 1 all the time on the wedge-shaped blocks 3, the two ends of wedge-shaped blocks 3 are designed with axle, spool being installed in the axis hole of said retainer 6 of each wedge-shaped blocks 3.
The cylndrical surface diameter of above-mentioned wedge-shaped blocks 3 and said inner ring 5 contacting points equals the diameter of the cylndrical surface groove on inner ring 5 external cylindrical surfaces, and lower pair---revolute pair is formed in the two cylindrical surface contact.
Above-mentioned retainer 6 and said inner ring 5 employing cylndrical surface seams and straight pin location connect as one retainer 6 and said inner ring 5 through bolt 7 connections.
The cylindrical roller 2 that cooperates on the above-mentioned retainer 6 and said outer ring 1 are for rolling pair is connected, with the accurate spacing between assurance outer ring 1 and the inner ring 5.
A series of inner cylindrical surface grooves have evenly been processed on the external cylindrical surface of non-return device inner ring 1.The non-return device wedge-shaped blocks 3 upper and lower cylndrical surface that are, following cylndrical surface and two end axles coaxial line, the equal diameters of inner cylindrical surface groove on diameter and the inner ring, last cylndrical surface and following cylndrical surface be coaxial line not, forms eccentric voussoir.Processed serial cylindrical hole on the non-return device retainer 6, correct position has been arranged to guarantee wedge-shaped blocks, roller.Retainer is sleeved on inner ring 5 location during assembling, the wedge-shaped blocks 3 two end axles corresponding axis hole of retainer of packing into, and a series of inner cylindrical surface grooves are that Spielpassung is assembled together on 3 times cylndrical surface of wedge-shaped blocks and the inner ring external cylindrical surface, are lower pair.On wedge-shaped blocks 3, load onto torque spring 4, wedge-shaped blocks 3 can be fitted with inside and outside circle, realize check when guaranteeing to stop.
When the conveyor proper functioning, non-return device inner ring 5 rotates by direction as shown with conveyor, and retainer 6, wedge-shaped blocks 3, roller rotate with inner ring, and roller rolls across outer ring 1 internal surface, and wedge-shaped blocks 3 slips over outer ring 1 internal surface, and non-return device runs well.When the conveyor parking, when non-return device will reverse, under the effect of torque spring 4; Wedge-shaped blocks contacts with inside and outside circle, inner ring 5 counter-rotatings, and relative rolling is done with wedge-shaped blocks 3 in outer ring 1; Wedge-shaped blocks 3 is axis around two ends, promptly around the lower pair rotational, and wedge-shaped blocks 3 wedgings; Then non-return device performance non-return effect prevents that the conveyor reversing from causing security incident.
Claims (4)
1. non-return device; It is by outer ring (1), inner ring (5); Inner ring (5) is gone up fixing retainer (6); Retainer (6) is gone up the cylindrical roller (2) that cooperates and is assembled; It is characterized in that: on the external cylindrical surface of above-mentioned inner ring (5), be evenly distributed with the inner cylindrical surface groove of axis and inner ring (5) parallel axes, between outer ring (1) and inner ring (5), be equipped with and contact the wedge-shaped blocks (3) that is the cylndrical surface, be combined with the torque spring (4) that the surface that makes wedge-shaped blocks (3) contacts with outer ring (1) surface all the time on the wedge-shaped blocks (3) with inside and outside circle; The two ends of wedge-shaped blocks (3) are designed with axle, and the axle of each wedge-shaped blocks (3) is installed in the axis hole of said retainer (6).
2. non-return device as claimed in claim 1 is characterized in that: the cylndrical surface diameter of said wedge-shaped blocks (3) and said inner ring (5) contacting point equals the diameter of the cylndrical surface groove on inner ring (5) external cylindrical surface.
3. non-return device as claimed in claim 1 is characterized in that: said retainer (6) adopts cylndrical surface seam and straight pin location with said inner ring (5), and retainer (6) and said inner ring (5) connect as one through bolt (7).
4. non-return device as claimed in claim 1 is characterized in that: said retainer (6) is gone up the cylindrical roller (2) that cooperates and is connected for rolling pair with said outer ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192911 CN202531686U (en) | 2012-05-03 | 2012-05-03 | Backstop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192911 CN202531686U (en) | 2012-05-03 | 2012-05-03 | Backstop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531686U true CN202531686U (en) | 2012-11-14 |
Family
ID=47132874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220192911 Expired - Fee Related CN202531686U (en) | 2012-05-03 | 2012-05-03 | Backstop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531686U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422686A (en) * | 2015-12-05 | 2016-03-23 | 重庆华洋单向器制造有限公司 | Cam wedge block type one-way clutch |
| CN105673728A (en) * | 2016-03-02 | 2016-06-15 | 厦门南超机械有限公司 | Decelerator backstop |
| CN106181223A (en) * | 2016-08-08 | 2016-12-07 | 浙江鑫隆机械制造有限公司 | The assemble method of holdback |
-
2012
- 2012-05-03 CN CN 201220192911 patent/CN202531686U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422686A (en) * | 2015-12-05 | 2016-03-23 | 重庆华洋单向器制造有限公司 | Cam wedge block type one-way clutch |
| CN105673728A (en) * | 2016-03-02 | 2016-06-15 | 厦门南超机械有限公司 | Decelerator backstop |
| CN106181223A (en) * | 2016-08-08 | 2016-12-07 | 浙江鑫隆机械制造有限公司 | The assemble method of holdback |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202531686U (en) | Backstop | |
| EP2808480B1 (en) | Self-aligning pipe gripping assembly and method of making and using the same | |
| CN101956772A (en) | Bearing type overrunning clutch structure | |
| CN103245280B (en) | A kind of drilling rod linearity testing apparatus | |
| CN203697854U (en) | Hub outer ring forge piece of automobile part | |
| CN205534173U (en) | Planet wheel round pin axle anti -disengaging structure | |
| CN202091389U (en) | Rotary pin type coupling | |
| CN201647571U (en) | Chain for material taking machine | |
| CN203421098U (en) | Involute wedge block backstop device | |
| CN102284574A (en) | Slug for causing car bumper with small bend radius to be arc | |
| CN201934540U (en) | Roller overrunning clutch | |
| CN203796895U (en) | Worm gear combination slewing bearing | |
| CN202937617U (en) | Bearing device used in driving wheel | |
| CN202597456U (en) | Double-slewing cross type slewing support | |
| CN105729360B (en) | Length adjustment formula tyre wrench | |
| CN202381558U (en) | Gear and shaft fixing device | |
| CN204512375U (en) | A kind of combination herringbone gear ring gear floating structure | |
| CN211059265U (en) | Elastic coupling with brake wheel | |
| CN203670546U (en) | Pin roller type overrunning clutch with double-groove mutually-clamped type one-way positioning pin rollers | |
| CN204852175U (en) | A transmission chain that is used for dull and stereotyped wheel of large -scale gross ton ton | |
| CN103527672A (en) | Pin-roller type overrun clutch with double-groove mutually-clamped one-way positioning pin rollers | |
| CN202579912U (en) | Pin wheel of three-cylinder dryer gearing | |
| CN202746456U (en) | Wedge-block type overrunning coupler used on hydraulic torque converter | |
| CN203868182U (en) | Novel loader overrunning clutch | |
| CN103287211B (en) | Wheel bearing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140503 |