CN209554158U - A kind of holdback - Google Patents
A kind of holdback Download PDFInfo
- Publication number
- CN209554158U CN209554158U CN201822085184.2U CN201822085184U CN209554158U CN 209554158 U CN209554158 U CN 209554158U CN 201822085184 U CN201822085184 U CN 201822085184U CN 209554158 U CN209554158 U CN 209554158U
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- pin
- yoke
- special
- roller
- hole
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- 238000009434 installation Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract 1
- 230000002159 abnormal effect Effects 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Rolls And Other Rotary Bodies (AREA)
Abstract
This application provides a kind of holdbacks；The holdback includes: that the holdback includes: outer ring, and inner wall is provided with protruding portion, has the first side and and second side on protruding portion；Inner ring is arranged in outer ring；First pin, one end of the first pin are fixed on the protruding portion；Second pin, one end of the second pin are fixed over the projections；First grips plate, and first grips plate connect with the other end of each first pin；Second grips plate, and second grips plate connect with the other end of each second pin；Roller, roller setting is gripped between plate and the first side first and roller is arranged and grips between plate and second side second；Special-shaped block, the setting of special-shaped block is gripped between plate and the first side first and special-shaped block is arranged and grips between plate and second side second.The first pin, the second pin, roller and the special-shaped block of the holdback of the application and outer ring have assembly relation, can be avoided the axial moving of roller and special-shaped block, realize preferable sealing, prevent internal lubrication oil from revealing.
Description
Technical Field
The application relates to the technical field of belt conveyors, and particularly provides a backstop.
Background
In the long-distance material transportation with slope, the low-speed contact type backstop in the prior art has large backstop torque, so the low-speed contact type backstop is widely adopted. The low-speed contact type backstop mainly comprises an inner ring, an outer ring, a wedging body and a force arm, wherein the inner ring is arranged on a shaft, and the outer ring is superposed with the axis of the inner ring and is fixedly connected with the force arm. The wedging body is arranged between the inner ring and the outer ring, and when the mounting shaft of the backstop rotates reversely, the inner ring and the outer ring are wedged into a whole through the wedging body, so that braking is realized.
The wedge body mainly comprises a retainer, a roller and a wedge block, and because the wedge body is independent relative to the inner ring and the outer ring, when the equipment runs normally, the wedge body can move axially, so that internal elements are abraded; meanwhile, the outer ring can also be axially scraped, so that the leakage of the internal lubricating oil or the damage of the seal can be caused.
In addition, in order to improve the non-return torque of the non-return device, the number or the length of the special-shaped blocks is generally increased, but under the same diameter, the number of the special-shaped blocks is limited, the diameter of the inner ring and the diameter of the outer ring can only be increased, and the type of the non-return device is increased; if the length of the special-shaped block is increased, the length cannot be infinitely increased in consideration of the rigidity and the processing precision of the special-shaped block. Finally, only a backstop with a larger model can be selected, so that a larger equipment installation space is required, and the use cost is increased.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present application provides a non-return device, including:
an outer ring, an inner wall of which is provided with a protruding portion having a first side and a second side opposite to the first side in an axial direction of the outer ring;
an inner ring disposed within the outer ring;
a plurality of first pins, one end of each first pin being fixed to a first side of the protrusion;
a plurality of second pins, one end of each second pin being fixed to the second side of the protruding portion;
the first choke plate is arranged between the outer ring and the inner ring and is connected with the other end of each first pin column;
a second yoke disposed between the outer ring and the inner ring, the second yoke being connected to the other end of each of the second pins;
a plurality of rollers, the rollers being provided between the first yoke and the first side and between the second yoke and the second side, the rollers being rotatable with respect to the first yoke and the protruding portion or the rollers being rotatable with respect to the second yoke and the protruding portion;
the special-shaped blocks are arranged between the first yoke and the first side and between the second yoke and the second side, and can rotate relative to the first yoke and the protruding portion or rotate relative to the second yoke and the protruding portion.
Optionally, a through hole is arranged on the protruding part;
one end of the first pin fixed on the protruding part is fixed in the through hole;
one end of the second pin fixed on the protruding part is fixed in the through hole.
Optionally, the number of the through holes is the same as the number of the first pins, and one end of one first pin and one end of one second pin are arranged in one through hole.
Optionally, the first side on the protruding portion is recessed towards the second side to form a first blind hole, and the second side is recessed towards the first side to form a second blind hole;
one end of the first pin fixed on the protruding part is fixed in the first blind hole;
one end of the second pin fixed on the protruding part is fixed in the second blind hole.
Optionally, the number of the first blind holes is the same as that of the first pins, and the number of the second blind holes is the same as that of the first pins; wherein,
the first blind hole and the second blind hole are matched with each other, and the axes of the first blind hole and the second blind hole which are matched with each other are overlapped.
Optionally, the first pin is threadedly connected with the projection; the second pin is threadedly connected with the projection.
Optionally, the first and second yokes are provided with roller mounting apertures, the protrusion is provided with a roller mounting aperture, one end of the roller is disposed in the roller mounting aperture of the first or second yoke, and the other end of the roller is disposed in the roller mounting aperture of the protrusion;
be provided with special-shaped piece installation unthreaded hole on first choke and the second choke, be provided with special-shaped piece installation unthreaded hole on the protruding portion, the one end setting of special-shaped piece is in the special-shaped piece installation unthreaded hole on first choke or the second choke, the other end setting of special-shaped piece is in the special-shaped piece installation unthreaded hole of protruding portion.
Optionally, the first yoke plate is provided with a first pin mounting hole;
a second pin mounting hole is formed in the second yoke plate;
one end of the first pin, which is connected with the first yoke plate, is arranged in the first pin mounting hole and is fixed through a nut;
and one end of the second pin, which is connected with the second yoke plate, is arranged in the second pin mounting hole and is fixed through a nut.
Optionally, a clamping part is arranged in the roller mounting unthreaded hole, one end of the roller arranged in the roller mounting unthreaded hole is provided with a protruding part, and the protruding part can be matched with the clamping part to prevent the roller from falling off from the roller mounting unthreaded hole;
the roller is characterized in that a clamping part is arranged in the special-shaped block mounting unthreaded hole, a protruding part is arranged at one end of the special-shaped block, which is arranged in the special-shaped block mounting unthreaded hole, and the protruding part and the clamping part can be matched to prevent the roller from falling off from the special-shaped block mounting unthreaded hole.
Alternatively, the projection is provided in the middle of the inner wall of the outer ring in the axial direction.
The utility model provides a backstop is provided with the protruding portion on the outer lane, makes first round pin post, second round pin post, roller and abnormal shape piece all set up on this protruding portion to have the fitting relation with first round pin post, second round pin post, roller and abnormal shape piece and outer lane, can avoid the axial of roller and abnormal shape piece to collect together and move, realize better sealing, prevent that inside lubricating oil from revealing. Secondly, the number of the special-shaped blocks is increased by arranging the special-shaped blocks on the two sides, and the non-return torque of the non-return device is favorably improved. Finally, under the structure of this application, the yoke wearing and tearing are less, and need not set up the spacing of yoke, have simplified the structure of backstop.
Drawings
Fig. 1 is a schematic structural diagram of a backstop provided in an embodiment of the present application.
Wherein:
1. an inner ring; 2. an outer ring; 3. a first pin; 4. a protrusion; 5. a first choke plate; 6. a side plate; 7. a second pin; 8. a second choke plate; 9. and a roller.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
Fig. 1 is a schematic structural diagram of a backstop provided in an embodiment of the present application.
As shown in fig. 1, the backstop includes an outer ring 2, an inner ring 1, a first pin 3, a second pin 7, a first yoke 5, a second yoke 8, a roller 9, and a profile block, a protrusion 4 is provided on an inner wall of the outer ring 2, and the protrusion 4 has a first side and a second side opposite to the first side in an axial direction of the outer ring 2; the inner ring 1 is arranged in the outer ring 2; the number of the first pins 3 is multiple, and one end of each first pin 3 is fixed on the first side of each protruding part; the number of the second pins 7 is multiple, and one end of each second pin 7 is fixed on the second side of the protruding part 4; the first choke 5 is arranged between the outer ring 2 and the inner ring 1, and the first choke 5 is connected with the other end of each first pin 3; the second choke 8 is arranged between the outer ring 2 and the inner ring 1, and the second choke 8 is connected with the other end of each second pin 7; the number of the rollers 9 is plural, the rollers 9 are arranged between the first yoke 5 and the first side and the rollers 9 are arranged between the second yoke 8 and the second side, the rollers 9 can rotate relative to the first yoke 5 and the protruding portion 4 or the rollers 9 can rotate relative to the second yoke 8 and the protruding portion 4; the number of the special-shaped blocks is multiple, the special-shaped blocks are arranged between the first yoke and the first side and between the second yoke and the second side, and the special-shaped blocks can rotate relative to the first yoke 5 and the protruding portion 4 or the special-shaped blocks can rotate relative to the second yoke 8 and the protruding portion 4.
The utility model provides a backstop is provided with the protruding portion on the outer lane, makes first round pin post, second round pin post, roller and abnormal shape piece all set up on this protruding portion to have the fitting relation with first round pin post, second round pin post, roller and abnormal shape piece and outer lane, can avoid the axial of roller and abnormal shape piece to collect together and move, realize better sealing, prevent that inside lubricating oil from revealing. Secondly, the number of the special-shaped blocks is increased by arranging the special-shaped blocks on the two sides, and the non-return torque of the non-return device is favorably improved. Finally, under the structure of this application, the yoke wearing and tearing are less, and need not set up the spacing of yoke, have simplified the structure of backstop.
Referring to fig. 1, in the present embodiment, a through hole is provided on the protruding portion 4; one end of the first pin 3 fixed on the protruding part 4 is fixed in the through hole; one end of the second pin 7 fixed to the projection 4 is fixed in the through hole.
Referring to fig. 1, in the present embodiment, the number of through holes is the same as the number of first pins, and one through hole has one end of one first pin and one end of one second pin therein.
In an alternative embodiment, the first side on the protruding portion is recessed towards the second side to form a first blind hole, and the second side is recessed towards the first side to form a second blind hole;
one end of the first pin column fixed on the protruding part is fixed in the first blind hole;
one end of the second pin fixed on the protruding part is fixed in the second blind hole.
In an alternative embodiment, the number of the first blind holes is the same as the number of the first pins, and the number of the second blind holes is the same as the number of the first pins; wherein,
a first blind hole and a second blind hole are matched with each other, and the axes of the first blind hole and the second blind hole which are matched with each other are overlapped.
Advantageously, the first pin is removably connected to the projection and the second pin is removably connected to the projection. In this embodiment, the first pin is threadedly connected with the projection; the second pin is threadedly connected with the projection. Adopt detachable connection, can make things convenient for the change of first round pin post and the installation of whole backstop.
In the embodiment, the first and second yokes 5 and 8 are provided with roller mounting apertures, the protruding portion is provided with a roller mounting aperture, one end of the roller 9 is disposed in the roller mounting aperture of the first or second yoke 5 or 8, and the other end of the roller 9 is disposed in the roller mounting aperture of the protruding portion;
the first yoke 5 and the second yoke 8 are provided with special-shaped block mounting light holes, the protruding portion is provided with special-shaped block mounting light holes, one end of the special-shaped block is arranged in the special-shaped block mounting light holes on the first yoke 5 or the second yoke 8, and the other end of the special-shaped block is arranged in the special-shaped block mounting light holes of the protruding portion.
By adopting the arrangement mode of the unthreaded hole, on one hand, the special-shaped block and the roller can not be influenced to rotate, and on the other hand, the roller and the special-shaped block are supported.
Advantageously, the wear-resistant layer or the wear-resistant pad is arranged in the special-shaped block mounting unthreaded hole and the roller mounting unthreaded hole, and after the wear-resistant layer or the wear-resistant pad of the special-shaped block mounting unthreaded hole and the roller mounting unthreaded hole is worn, the wear-resistant layer or the wear-resistant pad only needs to be further replaced.
In the present embodiment, the first yoke plate 5 is provided with a first pin mounting hole;
a second pin mounting hole is formed in the second yoke plate 8;
one end of the first pin 3 connected with the first choke plate 5 is arranged in the first pin mounting hole and fixed through a nut;
one end of the second pin 7 connected to the second yoke 8 is disposed in the second pin mounting hole and fixed by a nut.
In an alternative embodiment, a clamping part is arranged in the roller mounting unthreaded hole, one end of the roller, which is arranged in the roller mounting unthreaded hole, is provided with a protruding part, and the protruding part and the clamping part can be matched to prevent the roller from falling off from the roller mounting unthreaded hole;
the special-shaped block mounting unthreaded hole is internally provided with a clamping part, one end of the special-shaped block arranged in the special-shaped block mounting unthreaded hole is provided with a protruding part, and the protruding part can be matched with the clamping part to prevent the roller from falling off from the special-shaped block mounting unthreaded hole.
With this structure, when the machine is used for a long time, the special-shaped block mounting unthreaded hole and the roller mounting unthreaded hole may be worn and deformed, and at this time, the roller or the special-shaped block may fall off, and the clamping part is arranged to prevent the damage caused by the falling off in the using process.
Advantageously, the projection and the detent are resilient so that they can be inserted by elastic deformation during insertion.
In the present embodiment, the projection is provided in the middle of the axial direction of the inner wall of the outer ring. The distance between the first choke and the protrusion is the same as that between the second choke and the protrusion, the length of the first pin is the same as that of the second pin, and the length of each roller and each special-shaped block are the same, so that uneven stress is prevented.
Referring to fig. 1, in this embodiment, the backstop further includes two side plates, and the two side plates are respectively connected with the outer ring bolt.
It is understood that the first and second chokes may be identically constructed chokes.
The first pin and the second pin may be pins having the same structure.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (10)
1. A backstop, characterized in that, backstop includes:
an outer ring (2), wherein a protrusion (4) is arranged on the inner wall of the outer ring (2), and the protrusion (4) has a first side and a second side opposite to the first side in the axial direction of the outer ring (2);
an inner ring (1), the inner ring (1) being disposed within the outer ring (2);
a plurality of first pins (3), one end of the first pins (3) being fixed on a first side of the protrusion;
a plurality of second pins (7), wherein one end of each second pin (7) is fixed on the second side of the corresponding protruding part (4);
the first choke plate (5), the first choke plate (5) is arranged between the outer ring (2) and the inner ring (1), and the first choke plate (5) is connected with the other end of each first pin column (3);
a second yoke (8), wherein the second yoke (8) is arranged between the outer ring (2) and the inner ring (1), and the second yoke (8) is connected with the other end of each second pin (7);
a plurality of rollers (9), the rollers (9) being provided in number, the rollers (9) being provided between the first yoke (5) and the first side and the rollers (9) being provided between the second yoke (8) and the second side, the rollers (9) being rotatable relative to the first yoke (5) and the projection (4) or the rollers (9) being rotatable relative to the second yoke (8) and the projection (4);
a plurality of special-shaped blocks, the special-shaped blocks are arranged between the first yoke plate and the first side and between the second yoke plate and the second side, the special-shaped blocks can rotate relative to the first yoke plate (5) and the protruding portion (4) or the special-shaped blocks can rotate relative to the second yoke plate (8) and the protruding portion (4).
2. The backstop according to claim 1, characterized in that said protrusions (4) are provided with through holes;
one end of the first pin column (3) fixed on the protruding part (4) is fixed in the through hole;
one end of the second pin (7) fixed on the protruding part (4) is fixed in the through hole.
3. The backstop of claim 2 wherein said through holes are the same number as said first pins, one of said through holes having one end of said first pin and one end of said second pin therein.
4. The backstop of claim 1, wherein a first side on said projection is recessed toward a second side to form a first blind hole, and wherein said second side is recessed toward said first side to form a second blind hole;
one end of the first pin fixed on the protruding part is fixed in the first blind hole;
one end of the second pin fixed on the protruding part is fixed in the second blind hole.
5. The backstop of claim 4, wherein the number of first blind holes is the same as the number of first pins, and the number of second blind holes is the same as the number of first pins; wherein,
the first blind hole and the second blind hole are matched with each other, and the axes of the first blind hole and the second blind hole which are matched with each other are overlapped.
6. The backstop of claim 3, wherein said first pin is threadably connected to a protrusion; the second pin is threadedly connected with the projection.
7. The backstop according to claim 1, wherein said first (5) and second (8) yokes are provided with roller mounting apertures, said protrusion is provided with roller mounting apertures, one end of said roller (9) is provided in a roller mounting aperture on said first (5) or second (8) yoke, and the other end of said roller (9) is provided in a roller mounting aperture on said protrusion;
be provided with special-shaped piece installation unthreaded hole on first yoke (5) and second yoke (8), be provided with special-shaped piece installation unthreaded hole on the protruding portion, the one end setting of special-shaped piece is in the special-shaped piece installation unthreaded hole on first yoke (5) or second yoke (8), the other end setting of special-shaped piece is in the special-shaped piece installation unthreaded hole of protruding portion.
8. The backstop according to claim 7, wherein said first yoke (5) is provided with a first pin mounting hole;
a second pin mounting hole is formed in the second yoke plate (8);
one end of the first pin column (3) connected with the first yoke plate (5) is arranged in the first pin column mounting hole and fixed through a nut;
one end of the second pin column (7) connected with the second yoke plate (8) is arranged in the second pin column mounting hole and fixed through a nut.
9. The backstop of claim 7, wherein a stop is provided in said roller mounting unthreaded hole, and wherein a protrusion is provided at an end of said roller disposed in said roller mounting unthreaded hole, said protrusion being engageable with said stop to prevent said roller from falling out of said roller mounting unthreaded hole;
the roller is characterized in that a clamping part is arranged in the special-shaped block mounting unthreaded hole, a protruding part is arranged at one end of the special-shaped block, which is arranged in the special-shaped block mounting unthreaded hole, and the protruding part and the clamping part can be matched to prevent the roller from falling off from the special-shaped block mounting unthreaded hole.
10. The backstop according to any one of claims 1-9, characterized in that said protrusion is provided in the middle in the axial direction of the inner wall of said outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822085184.2U CN209554158U (en) | 2018-12-12 | 2018-12-12 | A kind of holdback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822085184.2U CN209554158U (en) | 2018-12-12 | 2018-12-12 | A kind of holdback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209554158U true CN209554158U (en) | 2019-10-29 |
Family
ID=68301964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822085184.2U Active CN209554158U (en) | 2018-12-12 | 2018-12-12 | A kind of holdback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209554158U (en) |
-
2018
- 2018-12-12 CN CN201822085184.2U patent/CN209554158U/en active Active
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