CN210410965U - Connecting mechanism for transmission arm and rocker arm of vertical flour mill - Google Patents
Connecting mechanism for transmission arm and rocker arm of vertical flour mill Download PDFInfo
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- CN210410965U CN210410965U CN201920904539.8U CN201920904539U CN210410965U CN 210410965 U CN210410965 U CN 210410965U CN 201920904539 U CN201920904539 U CN 201920904539U CN 210410965 U CN210410965 U CN 210410965U
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- arm
- expansion sleeve
- support arm
- pin
- gland
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Abstract
The utility model discloses a connecting mechanism of a transmission arm and a rocker arm of a vertical grinding mill, which comprises a support arm expansion sleeve, an expansion sleeve pin and a gland, wherein the support arm expansion sleeve is arranged in the mounting holes of the transmission arm and the rocker arm in a penetrating way, and the expansion sleeve pin is arranged in the inner hole of the support arm expansion sleeve in a penetrating way; the end face of the transmission arm is provided with a gland, and the gland is fixedly connected with the transmission arm through a plurality of fasteners so as to press the expansion sleeve pin into an inner hole of the support arm expansion sleeve; the support arm expansion sleeve and the expansion sleeve pin form conical surface matching; an opening is formed in the circumferential direction of the support arm expansion sleeve; and an elastic body is arranged between the gland and the expansion sleeve pin. The utility model discloses can take out support arm cover and the cover round pin that expands from driving arm and rocking arm very easily to convenient and fast ground separates driving arm and rocking arm, with the roller action that turns over that realizes grinding roller device.
Description
Technical Field
The utility model relates to an annex of vertical milling machine, concretely relates to drive arm and the coupling mechanism of rocking arm of vertical milling machine.
Background
The vertical flour mill is used as the main equipment of the flour milling system, has the advantages of simple structure, advanced technology, high reliability, high production efficiency, low power consumption, low failure rate and the like, and is widely applied to the industries of electric power, metallurgy, chemical industry, nonmetal and the like. In the use process of the vertical flour mill, the vertical flour mill inevitably needs to be overhauled and maintained. By means of the connecting mechanism of the transmission arm and the rocker arm, the grinding roller device can be turned out of the grinding body, so that the roller sleeve and the lining plate can be replaced and maintained in a short time. Therefore, almost all vertical mills are equipped with a linkage of the driving arm and the swing arm. During maintenance, the grinding roller device 1 is switched from the operating state shown in fig. 1 to the maintenance state shown in fig. 2. To realize the roll turning action of the grinding roll device 1, the driving arm 3 needs to be separated from one end of the rocker arm 2 before roll turning, i.e., the driving arm 3 is separated from the rocker arm 2 at the position K in fig. 3.
The connecting mechanism of the transmission arm and the rocker arm of the HRM vertical flour mill adopts double pins to connect the transmission arm and the rocker arm, and as shown in figure 4, the transmission arm 3 and the rocker arm 2 are fixedly connected through two pins 4. When the roller is turned over, the two pins 4 need to be pulled out from the mounting holes of the transmission arm 3 and the rocker arm 2, so that the transmission arm 3 and the rocker arm 2 can be separated.
However, it is very difficult to pull out the pin 4 from the mounting holes of the driving arm 3 and the swing arm 2 at the production site. In order to ensure stable connection, the fit clearance between the pin 4 and the mounting hole is small, and the pin cannot be pulled out in one day sometimes due to space and conditions in the field. After the vertical flour mill is used for a period of time, the pin 4 is combined with the mounting hole, the difficulty in pulling the pin 4 out of the mounting hole is further increased, and the overhauling efficiency of the equipment is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a coupling mechanism of driving arm and rocking arm of vertical milling machine is provided, it can realize the separation of driving arm and rocking arm fast.
In order to solve the technical problem, the utility model discloses vertical milling machine's driving arm is with the coupling mechanism's of rocking arm technical solution does:
the device comprises a support arm expansion sleeve, an expansion sleeve pin and a gland, wherein the support arm expansion sleeve is arranged in mounting holes of the transmission arm and the rocker arm in a penetrating manner, and the expansion sleeve pin is arranged in an inner hole of the support arm expansion sleeve in a penetrating manner; the end face of the transmission arm is provided with a gland, and the gland is fixedly connected with the transmission arm through a plurality of fasteners so as to press the expansion sleeve pin into an inner hole of the support arm expansion sleeve; the support arm expansion sleeve and the expansion sleeve pin form conical surface matching; an opening is formed in the circumferential direction of the support arm expansion sleeve; and an elastic body is arranged between the gland and the expansion sleeve pin.
In another embodiment, the inner hole of the support arm expansion sleeve is a conical surface with a large outer part and a small inner part; the excircle of the expansion sleeve pin is matched with the inner hole of the support arm expansion sleeve.
In another embodiment, the conical surface of the inner hole of the support arm expansion sleeve is 1:5 conical; the outer conical surface of the expansion sleeve pin is 1:5 conical degree.
In another embodiment, the elastic body is an even number of belleville springs which are symmetrically arranged.
In another embodiment, the outer circle of the support arm expansion sleeve is in clearance fit with the mounting holes of the transmission arm and the rocker arm.
In another embodiment, the support arm expansion sleeve is provided with a through groove extending axially to form the opening.
In another embodiment, the outer end of the expansion pin forms a neck, and the two sides of the neck are used as elastomer positioning cavities.
In another embodiment, the outer end of the expansion sleeve pin is provided with a threaded hole, and the threaded hole is matched with the fastener; the gland is provided with a fastener positioning hole, and the fastener positioning hole corresponds to the threaded hole of the expansion sleeve pin.
The utility model discloses the technological effect that can reach is:
the utility model discloses can take out support arm cover and the cover round pin that expands from driving arm and rocking arm very easily to convenient and fast ground separates driving arm and rocking arm, with the roller action that turns over that realizes grinding roller device.
The utility model discloses a support arm cover that expands has thin wall, conical surface cooperation and elasticity open-ended characteristics, can make the support arm cover that expands expand under sticising of the cover round pin that expands expand to tightly couple together rocking arm and driving arm, can ensure that vertical milling machine remains the stable of driving arm and rocking arm under operating condition all the time and be connected.
The utility model discloses the structure is reliable, dismantles convenience, swift. The labor intensity of maintenance workers can be reduced, and the maintenance time can be saved, so that the continuous operation of equipment is guaranteed.
Drawings
It is to be understood by those skilled in the art that the following description is merely exemplary in nature and that the principles of the present invention may be applied in numerous ways to achieve many different alternative embodiments. These descriptions are only used to illustrate the general principles of the teachings of the present invention and are not meant to limit the inventive concepts disclosed herein.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description given above and the detailed description of the drawings given below, serve to explain the principles of the invention.
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic view of a grinding roller assembly of a prior art vertical mill in an operational state;
FIG. 2 is a schematic view of a grinding roller assembly of a prior art vertical mill in a condition of service;
FIG. 3 is a schematic view of a linkage of a drive arm and a rocker arm of a prior art vertical mill;
FIG. 4 is a schematic view of a connecting mechanism of a driving arm and a swing arm of a HRM type vertical pulverizer of the prior art;
FIG. 5 is a schematic view of a connecting mechanism for a driving arm and a rocker arm of the vertical pulverizer of the present invention;
FIG. 6 is a schematic view of the arm expanding sleeve of the present invention;
FIG. 7 is a side view of FIG. 6;
fig. 8 is a schematic view of an expansion sleeve pin of the present invention;
fig. 9 is a schematic view of the gland of the present invention.
The reference numbers in the figures illustrate:
1 is a grinding roller device, 2 is a rocker arm,
3 is a transmission arm, 4 is a pin,
11 is a support arm expansion sleeve, 12 is an expansion sleeve pin,
13 is a belleville spring, 14 is a gland,
15 is a bolt, 11-1 is a through groove,
12-1 is a neck part, 12-2 is a threaded hole,
14-1 is a bolt positioning hole, and 14-2 is a bolt hole.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "upper", "lower", "inside", "outside", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
As shown in fig. 5, the connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of the present invention includes a support arm expansion sleeve 11, an expansion sleeve pin 12, and a gland 14, wherein the support arm expansion sleeve 11 is inserted into the mounting holes of the driving arm 3 and the rocker arm 2, and an expansion sleeve pin 12 is inserted into the inner hole of the support arm expansion sleeve 11; a gland 14 is arranged on the end face of the transmission arm 3, and the gland 14 is fixedly connected with the transmission arm 3 through a plurality of bolts 15, so that the sleeve expansion pin 12 is pressed into an inner hole of the support arm expansion sleeve 11;
clearance fit is formed between the excircle of the support arm expansion sleeve 11 and the mounting holes of the transmission arm 3 and the rocker arm 2, so that the support arm expansion sleeve 11 is conveniently arranged in the mounting holes of the rocker arm 2 and the transmission arm 3.
As shown in fig. 6 and 7, the support arm expansion sleeve 11 is provided with a through groove 11-1 extending axially, and the through groove 11-1 enables the support arm expansion sleeve 11 to form an opening in the circumferential direction, so that a tight fit can be formed between the support arm expansion sleeve 11 and the expansion sleeve pin 12;
the inner hole of the support arm expansion sleeve 11 is a conical surface with a large outer part and a small inner part; the excircle of the expansion sleeve pin 12 is matched with the inner hole of the support arm expansion sleeve 11, so that the support arm expansion sleeve 11 is matched with the expansion sleeve pin 12 in a conical surface manner, and the expansion sleeve pin 12 can be pulled out of the inner hole of the support arm expansion sleeve 11;
preferably, the conical surface of the inner hole of the support arm expansion sleeve 11 is 1:5 conical; the outer conical surface of the expansion sleeve pin 12 has 1:5 taper;
as shown in fig. 8, the outer end of the expanding sleeve pin 12 forms a neck portion 12-1, so that a spring positioning cavity is formed between the expanding sleeve pin 12 and the gland 14; the two belleville springs 13 are arranged in the spring positioning cavity to realize the positioning of the belleville springs 13;
the outer end of the expansion sleeve pin 12 is provided with a threaded hole 12-2, and the threaded hole 12-2 is matched with the bolt 15.
As shown in fig. 9, the pressing cover 14 is provided with a bolt positioning hole 14-1, and the bolt positioning hole 14-1 corresponds to the threaded hole 12-2 of the expansion sleeve pin 12, so that the bolt 15 can pass through the bolt positioning hole 14-1 of the pressing cover 14 and be fixed in the threaded hole 12-2 of the expansion sleeve pin 12;
the gland 14 is provided with a plurality of bolt holes 14-2 for passing bolts 15.
The working principle of the utility model is as follows:
when a grinding roller of the vertical grinding mill is in a working state, firstly, the support arm expansion sleeve 11 is sequentially arranged in the mounting holes of the transmission arm 3 and the rocker arm 2, then, the small end of the expansion sleeve pin 12 extends into the tapered hole of the support arm expansion sleeve 11, two belleville springs 13 are arranged on two sides of the neck 12-1 of the expansion sleeve pin 12, and finally, the gland 14 is fixedly connected with the transmission arm 3 through a plurality of bolts 15;
the bolt 15 is screwed down to enable the gland 14 to move towards the direction of the transmission arm 3, the gland 14 presses the expansion sleeve pin 12 into the inner hole of the support arm expansion sleeve 11 through the belleville spring 13, and therefore the expansion sleeve pin 12 is pressed into the inner hole of the support arm expansion sleeve 11, the expansion sleeve pin 12 and the support arm expansion sleeve 11 are integrated, and the transmission arm 3 is fixedly connected with the rocker arm 2.
The utility model discloses a pulling force of a plurality of bolts 15 makes gland 14 and disc spring 13 compress tightly bloated cover round pin 12 to make the support arm expand set 11 and expand tightly, this structure can ensure that vertical milling machine remains the stable connection of driving arm 3 and rocking arm 2 under operating condition all the time.
When in need of maintenance, a plurality of bolts 15 are firstly detached from the gland 14, and one bolt 15 is connected into the threaded hole 12-2 of the expansion sleeve pin 12 through the bolt positioning hole 14-1 of the gland 14 so as to realize the connection between the gland 14 and the expansion sleeve pin 12; then two bolts 15 pass through bolt holes 14-2 of the gland 14, the gland 14 and the expansion sleeve pin 12 are ejected out of the transmission arm 3 and the support arm expansion sleeve 11 of the rocker arm 2 through the two bolts 15, the expansion sleeve pin 12 can be easily taken out of the support arm expansion sleeve 11 due to the conical surface fit between the expansion sleeve pin 12 and the support arm expansion sleeve 11, and in addition, the support arm expansion sleeve 11 is provided with an elastic opening, so that the expansion sleeve pin 12 can be further favorably taken out. When the sleeve expanding pin 12 is taken out, the transmission arm 3 is separated from the rocker arm 2, and the roller turning operation can be carried out.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications of the present invention fall within the scope of the claims and their equivalent technologies, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a coupling mechanism of driving arm and rocking arm of vertical milling machine, includes that the support arm expands the cover, expands cover round pin, gland, its characterized in that: the support arm expansion sleeve is arranged in the mounting holes of the transmission arm and the rocker arm in a penetrating manner, and an expansion sleeve pin is arranged in an inner hole of the support arm expansion sleeve in a penetrating manner; the end face of the transmission arm is provided with a gland, and the gland is fixedly connected with the transmission arm through a plurality of fasteners so as to press the expansion sleeve pin into an inner hole of the support arm expansion sleeve;
the support arm expansion sleeve and the expansion sleeve pin form conical surface matching;
an opening is formed in the circumferential direction of the support arm expansion sleeve;
and an elastic body is arranged between the gland and the expansion sleeve pin.
2. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 1, wherein: the inner hole of the support arm expansion sleeve is a conical surface with a large outer part and a small inner part; the excircle of the expansion sleeve pin is matched with the inner hole of the support arm expansion sleeve.
3. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 2, wherein: the conical surface of the inner hole of the support arm expansion sleeve is 1:5 conical; the outer conical surface of the expansion sleeve pin is 1:5 conical degree.
4. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 1, wherein: the elastic body is an even number of butterfly springs which are symmetrically arranged.
5. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 1, wherein: and clearance fit is formed between the excircle of the support arm expansion sleeve and the mounting holes of the transmission arm and the rocker arm.
6. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 1, wherein: the support arm expansion sleeve is provided with a through groove extending axially to form the opening.
7. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 1, wherein: the outer end of the expansion sleeve pin forms a neck, and two sides of the neck are used as elastomer positioning cavities.
8. The connecting mechanism for the driving arm and the rocker arm of the vertical pulverizer of claim 1, wherein: the outer end of the expansion sleeve pin is provided with a threaded hole, and the threaded hole is matched with the fastener; the gland is provided with a fastener positioning hole, and the fastener positioning hole corresponds to the threaded hole of the expansion sleeve pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904539.8U CN210410965U (en) | 2019-06-17 | 2019-06-17 | Connecting mechanism for transmission arm and rocker arm of vertical flour mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904539.8U CN210410965U (en) | 2019-06-17 | 2019-06-17 | Connecting mechanism for transmission arm and rocker arm of vertical flour mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210410965U true CN210410965U (en) | 2020-04-28 |
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ID=70375535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920904539.8U Active CN210410965U (en) | 2019-06-17 | 2019-06-17 | Connecting mechanism for transmission arm and rocker arm of vertical flour mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210410965U (en) |
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2019
- 2019-06-17 CN CN201920904539.8U patent/CN210410965U/en active Active
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