CN216638620U - Grinding roller turnover device for coal mill - Google Patents
Grinding roller turnover device for coal mill Download PDFInfo
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- CN216638620U CN216638620U CN202122280135.6U CN202122280135U CN216638620U CN 216638620 U CN216638620 U CN 216638620U CN 202122280135 U CN202122280135 U CN 202122280135U CN 216638620 U CN216638620 U CN 216638620U
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- sling
- grinding roller
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Abstract
The utility model discloses a grinding roller turnover device for a coal mill, which comprises a frame, a sling, a movable pulley assembly, a first support structure and a second support structure, wherein the movable pulley assembly comprises a pulley bracket, a movable pulley and a first lifting lug; when the sling is in a second state, the first end of the sling is connected with the frame, and the second end of the sling sequentially bypasses the movable pulley and the second support structure and is connected with the grinding roller; the lifting hook of the travelling crane lifts the movable pulley assembly so as to drive the grinding roller to overturn, and the movable pulley is matched with the first supporting structure or the second supporting structure so as to overturn or turn into the grinding roller, so that the lifting distance is reduced, and the requirement on space is lowered.
Description
Technical Field
The utility model relates to the technical field of grinding roller maintenance, in particular to a grinding roller turnover device for a coal mill.
Background
When the grinding roller of the coal mill is overhauled, the grinding roller needs to be overturned out of the grinding bowl by using the overturning device, and after the overhauling is finished, the grinding roller is overturned into the grinding bowl by using the overturning device. The grinding roller is hoisted by the fixed pulley in the prior art, and the problems of long hoisting distance and high requirement on plant space exist.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a grinding roller turnover device for a coal mill, which aims to solve the technical problems of long lifting distance and high requirement on plant space of the grinding roller turnover device in the related technology.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model provides a grinding roller turnover device for a coal mill, which comprises a frame, a sling, a movable pulley component, a first support structure and a second support structure, wherein:
the movable pulley assembly comprises a pulley bracket, a movable pulley and a first lifting lug, the movable pulley is rotatably arranged on the pulley bracket, and the first lifting lug is fixedly connected to the pulley bracket;
the first supporting structure and the second supporting structure are respectively arranged on the frame;
the sling is provided with a first state and a second state, under the condition that the sling is in the first state, a first end of the sling is connected with the frame, and a second end of the sling sequentially bypasses the movable pulley and the first supporting structure and is connected with the grinding roller so as to turn out of the grinding roller;
Under the condition that the sling is in a second state, the first end of the sling is connected with the frame, and the second end of the sling sequentially bypasses the movable pulley and the second supporting structure and is connected with the grinding roller so as to be turned into the grinding roller.
The technical scheme adopted by the utility model can achieve the following beneficial effects:
according to the grinding roller turnover device for the coal grinding machine, disclosed by the embodiment of the utility model, when the grinding roller needs to be turned out of the grinding bowl, the first end of the sling wire is connected with the frame, the second end of the sling wire is connected with the grinding roller after sequentially bypassing the movable pulley and the first supporting structure, and the lifting hook of the travelling crane is connected with the first lifting lug to lift the movable pulley assembly, so that the grinding roller can be turned out of the grinding bowl; when the grinding roller needs to be turned into the grinding bowl, the first end of the sling is connected with the frame, the second end of the sling is sequentially wound around the movable pulley and the second supporting structure and then connected with the grinding roller, and the lifting hook of the travelling crane is connected with the first lifting lug to lift the movable pulley assembly, so that the grinding roller can be turned into the grinding bowl;
the grinding roller is turned out or turned into by adopting a mode that the movable pulley is matched with the first support structure or the second support structure, so that the lifting distance of the travelling crane can be reduced, the requirement on the space of a workshop is reduced, and the construction cost of the workshop is reduced; meanwhile, compared with the traditional grinding roller overturning device which needs tools such as a chain block and the like to assist in completing grinding roller overturning or grinding roller overturning due to insufficient lifting distance, the grinding roller overturning device for the coal mill provided by the embodiment of the utility model avoids the risk problem existing in chain block operation, improves the operation safety, and reduces the manual investment and the operation time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is one of schematic structural views of a grinding roller turning device for a coal mill of an embodiment;
FIG. 2 is a schematic view of a grinding roller turning device turning over a grinding roller for a coal pulverizer of an embodiment;
FIG. 3 is a schematic view of a grinding roller turnover device turning over into a grinding roller for a coal pulverizer of an embodiment;
fig. 4 is a second schematic structural view of a grinding roller turning device for a coal mill according to an embodiment.
In the figure:
100-a frame;
200-sling, 210-first lifting ring, 220-second lifting ring, 230-shackle;
310-a pulley bracket, 320-a movable pulley and 330-a first lifting lug;
410-a first fixed pulley, 420-a first pin;
510-a second fixed pulley, 520-a third fixed pulley, 530-a second pin;
600-a support frame;
710-a second lifting lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
The grinding roller turning device for a coal mill provided in the embodiments of the present application is described in detail with reference to fig. 1 to 4.
Referring to fig. 1 to 4, the embodiment of the present application provides a grinding roller turning device for a coal mill, including a frame 100, a sling 200, a movable pulley assembly, a first support structure, and a second support structure.
Wherein, the frame 100 is a basic component of a grinding roller turnover device for a coal mill, and the frame 100 can be fixedly arranged on a separator of the coal mill. Specifically, the frame 100 may be fixed to the separator of the coal pulverizer by a threaded connection, and the frame 100 provides a mounting base for the first support structure and the second support structure, i.e., the first support structure and the second support structure are respectively provided on the frame 100.
The movable pulley component comprises a pulley bracket 310, a movable pulley 320 and a first lifting lug 330, the movable pulley 320 is rotatably arranged on the pulley bracket 310, the first lifting lug 330 is fixedly connected to the pulley bracket 310, when the grinding roller is turned in or turned out, a lifting hook of a travelling crane is hung on the first lifting lug 330, and the grinding roller is driven to turn over by lifting the movable pulley 320.
The sling 200 has a first state and a second state, when the sling 200 is in the first state, a first end of the sling 200 is fixedly connected with the frame 100, and a second end of the sling 200 sequentially bypasses the movable pulley 320 and the first supporting structure and is connected with the grinding roller to roll out the grinding roller; when the sling 200 is in the second state, a first end of the sling 200 is fixedly connected to the frame 100, and a second end of the sling 200 sequentially passes around the movable pulley 320 and the second support structure and is connected to a grinding roller for turning into the grinding roller.
The grinding roller overturning device for the coal mill disclosed by the embodiment of the utility model adopts a mode of matching the movable pulley with the first supporting structure or the second supporting structure to overturn or overturn the grinding roller, so that the lifting distance can be reduced, the requirement on the space of a workshop is reduced, and the construction cost of the workshop is reduced.
Meanwhile, compared with the traditional grinding roller overturning device which needs tools such as chain blocks to assist in completing grinding roller overturning out or grinding roller overturning in due to insufficient lifting distance, the grinding roller overturning device for the coal mill provided by the embodiment of the utility model avoids the risk problem in chain block operation, improves the operation safety, and reduces the manual input and the operation time.
In the embodiment of the present application, a pin is disposed on the frame 100, and the first end of the sling 200 can be connected to the pin, so as to connect the first end of the sling 200 to the frame 100.
In one embodiment, the number of the pin shafts can be one, the first supporting structures are distributed on the first side of the pin shafts, the second supporting structures are distributed on the second side of the pin shafts, the first side and the second side are opposite to each other for the pin shafts, and under the condition that the frame 100 is fixed on the separator, the roll-over direction of the grinding roller is opposite to the roll-over direction of the grinding roller, the structure of the grinding roller turnover device for the coal mill can be compact, and the space occupation of the grinding roller turnover device for the coal mill is reduced.
In one embodiment, the number of the pins may be two, the two pins are a first pin 420 and a second pin 530, and the first pin 420 and the second pin 530 are respectively connected to the frame 100. Under the condition that the sling 200 is in the first state, the first end of the sling 200 is connected with the first pin 420, the first supporting structure is distributed on the first side of the first pin 420, under the condition that the sling 200 is in the second state, the first end of the sling 200 is connected with the second pin 530, and the second supporting structure is distributed on the second side of the second pin 530.
In the present embodiment, referring to fig. 1, the first supporting structure comprises a first fixed pulley 410, the second supporting structure comprises a second fixed pulley 510 and a third fixed pulley 520, and a gap is formed between the second fixed pulley 510 and the third fixed pulley 520, and when the sling 200 is in the second state, the second end of the sling 200 passes through the gap and is connected to the grinding roller.
Referring to fig. 2, when the grinding roller rolls out, a first end of a sling 200 is connected with a first pin 420, a second end of the sling 200 is sequentially connected with the grinding roller after passing around a movable pulley 320 and a first fixed pulley 410, a lifting hook of a travelling crane is connected with a first lifting lug 330 of a movable pulley assembly, the travelling crane slowly lifts the movable pulley assembly, the grinding roller slowly turns over under the traction of the sling 200, when the gravity center of the grinding roller crosses a critical position, the grinding roller can continuously complete the roll-out action under the action of self gravity, at the moment, the lifting hook of the travelling crane slowly lowers the movable pulley assembly, the sling 200 continuously pulls the grinding roller, and the grinding roller is prevented from being impacted and damaged due to the fact that the grinding roller rolls out at an excessively high speed under the action of self gravity after the grinding roller crosses the critical position.
Referring to fig. 3, when the grinding roller rolls out, the first end of the sling 200 is connected with the second pin 530, the second end of the sling 200 is connected with the grinding roller after passing through the gap and bypassing the movable pulley 320, the hook of the travelling crane is connected with the first lifting lug 330 of the movable pulley assembly, the travelling crane slowly lifts the movable pulley assembly, the grinding roller slowly turns over under the traction of the sling 200, in the initial stage of the roll-in, the sling 200 is matched with the second fixed pulley 510, when the gravity center of the grinding roller exceeds the critical position, the grinding roller can continuously complete the roll-in action under the action of self gravity, at this moment, the hook of the travelling crane slowly lowers the movable pulley assembly, the sling 200 is switched to be matched with the third fixed pulley 520, and the sling 200 continuously pulls the grinding roller, and the grinding roller is prevented from turning out too fast under the action of self gravity after the grinding roller exceeds the critical position to cause the impact damage of the grinding roller.
In the present embodiment, the first pin 420 and the first support structure are located between the second pin 530 and the second support structure. Specifically, the first fixed pulley 410 is disposed adjacent to the second pin 530, and the first pin 420 is disposed adjacent to the second fixed pulley 510. Under such overall arrangement, can ensure the turn-out direction of grinding roller and the turn-in direction of grinding roller opposite, can make grinding roller turning device for coal pulverizer compact structure again, reduce grinding roller turning device for coal pulverizer's space and occupy.
In one embodiment, the first end of the sling 200 has a first hanging ring 210, and the first hanging ring 210 is used to fit a pin.
Further, the round pin axle is provided with spacing portion, cup joints under the condition of round pin axle at first rings 210, spacing portion and the spacing cooperation of first rings 210, and spacing portion can play spacing anticreep effect to first rings 210, guarantees the security of grinding roller roll-out operation or grinding roller roll-in operation.
In one embodiment, the limiting part comprises a through hole and a cotter pin, the limiting part comprises the cotter pin and the through hole arranged on the pin shaft, the cotter pin is inserted into the through hole, after the first hanging ring 210 is sleeved into the pin shaft, the cotter pin is inserted into the through hole, the cotter pin can play a role in resisting and limiting the first hanging ring 210, and the first hanging ring 210 is prevented from being separated from the pin shaft in the axial direction.
Of course, the limiting portion may also be a baffle plate in threaded fit with the pin shaft, and after the first hanging ring 210 is sleeved into the pin shaft, the baffle plate may be in threaded fit with the pin shaft, so as to prevent the first hanging ring 210 from being separated from the axial direction of the pin shaft.
In the embodiment of the application, the second end of the sling 200 is provided with the second lifting ring 220, the grinding roller is provided with the second lifting lug 710, the second lifting ring 220 is connected with the second lifting lug 710 through the shackle 230, the stability of lifting and turning can be guaranteed, the grinding roller overturning device has the advantages of being convenient to disassemble and assemble, and the overturning efficiency of the grinding roller is improved.
In the process of turning over the grinding roller by the grinding roller turning device for the coal grinding machine, the sling 200 takes the first fixed pulley 410, the second fixed pulley 510 or the third fixed pulley 520 as a fulcrum, so that the load of the frame 100 is increased in the process of turning over the grinding roller. In one embodiment, the grinding roller turnover device for the coal mill further comprises a support frame 600, the support frame 600 is located below the frame 100, and the support frame 600 is connected with the frame 100 to support the frame 100, so that the structural stability of the grinding roller turnover device for the coal mill can be improved, the frame 100 is prevented from being deformed or damaged due to large loading, and the safety of turning in or turning out the grinding roller is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention.
Claims (10)
1. The utility model provides a grinding roller turning device for coal pulverizer which characterized in that includes:
a frame (100);
a sling (200);
the movable pulley assembly comprises a pulley bracket (310), a movable pulley (320) and a first lifting lug (330), the movable pulley (320) is rotatably arranged on the pulley bracket (310), and the first lifting lug (330) is fixedly connected to the pulley bracket (310);
a first support structure and a second support structure, which are respectively provided to the frame (100);
the sling (200) has a first state and a second state, under the condition that the sling (200) is in the first state, a first end of the sling (200) is connected with the frame (100), and a second end of the sling (200) sequentially rounds the movable pulley (320) and the first supporting structure and is connected with the grinding roller so as to roll out of the grinding roller;
Under the condition that the sling (200) is in the second state, the first end of the sling (200) is connected with the frame (100), and the second end of the sling (200) sequentially bypasses the movable pulley (320) and the second supporting structure and is connected with the grinding roller so as to turn into the grinding roller.
2. A grinding roll turning apparatus for a coal mill as claimed in claim 1, wherein the frame (100) is provided with a pin, a first end of the sling (200) is connected to the pin, the first support structure is disposed on a first side of the pin, the second support structure is disposed on a second side of the pin, and the first side and the second side are opposite sides of the pin.
3. The grinding roll turning apparatus for a coal mill as claimed in claim 2, wherein the number of the pins is two, and the two pins are a first pin (420) and a second pin (530);
under the condition that the sling (200) is in a first state, a first end of the sling (200) is connected with the first pin shaft (420), and the first supporting structure is distributed on a first side of the first pin shaft (420);
under the condition that the sling (200) is in the second state, the first end of the sling (200) is connected with the second pin shaft (530), and the second supporting structure is distributed on the second side of the second pin shaft (530).
4. A grinding roll turning apparatus for a coal grinding mill according to claim 3, wherein the first pin (420) and the first support structure are located between the second pin (530) and the second support structure.
5. A grinding roller turning apparatus for a coal grinding mill according to claim 1, wherein the first support structure comprises a first fixed pulley (410), the second support structure comprises a second fixed pulley (510) and a third fixed pulley (520), and the second fixed pulley (510) and the third fixed pulley (520) have a gap therebetween, and the second end of the sling (200) passes through the gap and is attached to the grinding roller with the sling (200) in the second condition.
6. A grinding roll turning device for a coal mill according to claim 2, wherein the first end of the lifting rope (200) is provided with a first lifting ring (210), and the first lifting ring (210) is used for being sleeved with the pin.
7. The grinding roll turning device for a coal mill according to claim 6, wherein the pin is provided with a limiting portion, and the limiting portion is in limiting engagement with the first lifting ring (210).
8. The grinding roll turning device for a coal mill as claimed in claim 7, wherein the limiting portion comprises a cotter pin and a through hole provided on the pin, and the cotter pin is inserted into the through hole.
9. A grinding roller turning device for a coal mill according to claim 6, characterized in that the second end of the lifting rope (200) is provided with a second lifting ring (220), the grinding roller is provided with a second lifting lug (710), and the second lifting ring (220) is connected with the second lifting lug (710) through a shackle (230).
10. A grinding roll upender for a coal mill according to claim 1, characterized in that it further comprises a support frame (600), said support frame (600) being located below said frame (100), said support frame (600) being connected to said frame (100) for supporting said frame (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122280135.6U CN216638620U (en) | 2021-09-18 | 2021-09-18 | Grinding roller turnover device for coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122280135.6U CN216638620U (en) | 2021-09-18 | 2021-09-18 | Grinding roller turnover device for coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216638620U true CN216638620U (en) | 2022-05-31 |
Family
ID=81723240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122280135.6U Active CN216638620U (en) | 2021-09-18 | 2021-09-18 | Grinding roller turnover device for coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216638620U (en) |
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2021
- 2021-09-18 CN CN202122280135.6U patent/CN216638620U/en active Active
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