CN217762307U - Rocker arm structure for driving air valve blade and disassembling tool thereof - Google Patents
Rocker arm structure for driving air valve blade and disassembling tool thereof Download PDFInfo
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- CN217762307U CN217762307U CN202221798014.9U CN202221798014U CN217762307U CN 217762307 U CN217762307 U CN 217762307U CN 202221798014 U CN202221798014 U CN 202221798014U CN 217762307 U CN217762307 U CN 217762307U
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Abstract
The utility model discloses a rocker arm structure of a driving air valve blade and a disassembling tool thereof, the rocker arm structure of the driving air valve blade comprises three rocker arms, the three rocker arms are sleeved at the shaft ends of three driving shafts in a one-to-one correspondence manner, and three pressing plates are arranged at the outer sides of the three rocker arms in a one-to-one correspondence manner and compress the corresponding rocker arms; the end of the shaft head, connected with the rocker arm, of the driving shaft has a certain taper, and a corresponding taper hole is formed in the rocker arm; the rocker arm is in interference fit with a shaft head end with a certain taper of the driving shaft through the taper hole; the pressure plates are fixedly connected with the driving shafts where the corresponding rocker arms are located; the three driving shafts are connected with the connecting rod structure through the corresponding three rocker arms, and the adjustment and the positioning in any direction can be realized. The dismounting tool comprises a tension bolt, one end of the tension bolt is a conical end head, and the conical end head is matched with a mounting hole of the driving shaft mounting pressure plate; the pulling sleeve is sleeved on the tension bolt and is in threaded connection with the tension bolt, and the pulling claw is arranged on one side of the pulling sleeve, which is close to the conical end of the tension bolt, and is fixedly connected with the pulling sleeve.
Description
Technical Field
The utility model belongs to blast gate design field relates to a rocker arm structure of drive blast gate blade and extracting tool thereof.
Background
An air volume regulating valve (called as an air valve for short) is an indispensable central end fitting in ventilation, air conditioning and air purification projects of industrial factory buildings and civil buildings, is generally used for regulating the air volume of a pipeline in an air conditioner and a ventilation system pipeline, and is also used for mixed regulation of fresh air and return air.
The air valve mainly comprises a valve body, blades, a rocker arm/connecting rod structure, an actuator and the like, wherein the actuator transmits torque to the rocker arm/connecting rod structure through a connecting shaft, controls the opening/closing angle of the blades, realizes the adjustment and control of air volume, and provides a proper and satisfactory air environment for equipment and personnel in a service area.
At present, most of the connections of the rocker arm and the connecting rod for driving the air valve blade adopt key groove connection torque transmission, few structures such as a square shaft/square hole connection torque transmission, key grooves, square shafts and the like are used for production and assembly, the process is complex, the production cost is high, the correct azimuth angle needs to be ensured, and if the azimuth angle is incorrect, the bearing needs to be reworked and repaired, even, parts are scrapped; in addition, the air valve adopting structures such as a key groove and a square shaft to connect the rocker arm and the connecting rod has the advantages that after the air valve is assembled and positioned, the angle of the rocker arm cannot be adjusted, the installation position is easy to be wrong, and the assembly efficiency of the air valve is seriously influenced.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a rocking arm structure of drive blast gate blade and extracting tool thereof to the rocking arm that solves current blast gate adopts keyway, square shaft isotructure and connecting rod coupling, has that the angle of equipment process is complicated, with high costs, rocking arm can not be adjusted, mounted position easily wrong, the problem that blast gate packaging efficiency is low.
The embodiment of the utility model provides an adopted technical scheme is: a rocker arm structure for actuating a damper blade, comprising:
the three rocker arms are sleeved at the shaft head ends of the three driving shafts in a one-to-one corresponding manner;
the three pressure plates are correspondingly arranged on the outer sides of the three rocker arms one by one and press the corresponding rocker arms tightly;
wherein:
the end of the shaft head, connected with the rocker arm, of the driving shaft has a certain taper, and a corresponding taper hole is formed in the rocker arm;
the rocker arm is in interference fit with a shaft head end with a certain taper of the driving shaft through the taper hole;
the pressure plate is fixedly connected with a driving shaft where the corresponding rocker arm is located;
the three driving shafts are connected with the connecting rod structure through the corresponding three rocker arms.
Further, the link structure includes:
one end of the first connecting rod is rotationally connected with the end part of a rocker arm connected with a driving shaft positioned at the bottom through a pin shaft;
one end of the second connecting rod is rotatably connected with the end part of the rocker arm connected with the driving shaft positioned in the middle through a pin shaft;
wherein:
the other ends of the first connecting rod and the second connecting rod are rotatably connected with the end part of a rocker arm connected with a driving shaft positioned at the top through a pin shaft.
Furthermore, two rocker arms connected with the driving shafts positioned at the top and the bottom are obliquely arranged towards the left lower side, and the included angle between the two rocker arms and the horizontal line is-135 degrees;
the rocker arm connected to the drive shaft located in the middle is disposed obliquely to the upper right at an angle of 45 ° to the horizontal.
Furthermore, the first connecting rod and the second connecting rod are detachably connected with the corresponding rocker arms through a connecting structure consisting of a first pin shaft, a gasket and a first cotter pin.
Furthermore, the pressure plate is detachably connected with the corresponding driving shaft through a bolt;
the bolt is matched with a backstop gasket.
The embodiment of the utility model provides an another technical scheme who adopts is: a removal tool for a rocker arm structure of an actuating air valve blade, comprising:
one end of the pull bolt is a conical end head, and the conical end head of the pull bolt is matched with the mounting hole for the driving shaft mounting pressing plate of the rocker arm structure for driving the air valve blade;
the pulling sleeve is sleeved on the tension bolt and is in threaded connection with the tension bolt;
and the pulling claw is arranged on one side of the pulling sleeve, which is close to the conical end of the pulling bolt, and is fixedly connected with the pulling sleeve.
Furthermore, the pulling claw is detachably and fixedly connected with the pulling sleeve through a connecting structure consisting of a second pin shaft and a second cotter pin.
The embodiment of the utility model provides a beneficial effect is:
1. the rocker arm structure of the embodiment of the utility model has high transmission torque, can replace the transmission torque structure of the key slot, the square shaft and the like of the traditional air valve rocker arm, has simple processing procedure and low production cost, solves the problem of high cost because the rocker arm of the traditional air valve adopts the key slot, the square shaft and the like to be connected with the connecting rod, has higher interchangeability, can be produced in batches, and effectively improves the quality of the transmission torque structure;
2. the rocker arm structure of the embodiment of the utility model can realize the adjustment and positioning in any directions of 360 degrees, has simple and convenient installation, effectively improves the assembly efficiency of the air valve, can realize repeated disassembly/reuse, and solves the problems of complex assembly process, unadjustable angle of the rocker arm, easy error installation position and low assembly efficiency of the air valve caused by the rocker arm of the existing air valve adopting structures such as a key groove and a square shaft to be connected with a connecting rod;
3. the utility model discloses rocker arm structure has reduced the slotting process of keyway, has improved processing, assembly, maintenance and on-the-spot installation effectiveness, and can avoid leading to drive shaft/rocking arm intensity to weaken because of reasons such as keyway, does not have stress concentration point, has improved rocker arm structure's intensity, and the operating stability has prolonged the life of rocking arm, connecting rod and connection structure.
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 these drawings without creative efforts.
FIG. 1 is a three-dimensional schematic view of a rocker arm structure for actuating a damper blade.
FIG. 2 is a schematic elevation view of a rocker arm structure for actuating a damper blade.
FIG. 3 is a cross-sectional schematic view of a rocker arm structure for actuating a vane of an air valve.
Fig. 4 is a schematic view of a dismounting tool for a rocker arm structure for driving a vane of an air valve.
Fig. 5 is a schematic sectional view of k-k of fig. 4.
Fig. 6 is a schematic view showing a detaching operation of a detaching tool for a rocker arm structure for actuating a vane of an air valve.
In the figure, 1, a driving shaft, 2, a rocker arm, 3, a pressure plate, 4, a bolt, 5, a non-return gasket, 6, a first connecting rod, 7, a first pin shaft, 8, a gasket, 9, a first cotter pin, 10, a pull claw, 11, a second pin shaft, 12, a second cotter pin, 13, a pull sleeve, 14, a pull bolt and 15, a second connecting rod are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The present embodiment provides a rocker arm structure for driving a vane of an air valve, as shown in fig. 1 to 3, including:
the three rocker arms 2 are sleeved at the shaft head ends of the three driving shafts 1 in a one-to-one corresponding manner;
the three pressing plates 3 are correspondingly arranged at the outer sides of the three rocker arms 2 one by one and press the corresponding rocker arms 2;
wherein:
the shaft head end of the driving shaft 1 connected with the rocker arm 2 has a certain taper, and the rocker arm 2 is provided with a corresponding taper hole;
the rocker arm 2 is in interference fit with the shaft head end with a certain taper of the driving shaft 1 through the taper hole so as to realize taper self-locking and interference fit and transmit torque;
the pressing plate 3 is fixedly connected with the driving shaft 1 where the corresponding rocker arm 2 is located so as to realize the functions of taper self-locking and interference fit of each rocker arm 2 and the driving shaft 1 and stably transmit torque;
the three drive shafts 1 are connected to the link arrangement by means of corresponding three rocker arms 2.
In some embodiments, the link structure comprises:
one end of the first connecting rod 6 is rotatably connected with the end part of the rocker arm 2 connected with the driving shaft 1 positioned at the bottom through a pin shaft;
one end of the second connecting rod 15 is rotatably connected with the end part of the rocker arm 2 connected with the driving shaft 1 positioned in the middle through a pin shaft;
wherein:
the other ends of the first connecting rod 6 and the second connecting rod 15 are rotatably connected with the end part of the rocker arm 2 connected with the driving shaft 1 positioned at the top through a pin shaft;
two rocker arms 2 connected with the driving shafts 1 positioned at the top and the bottom are obliquely arranged towards the lower left, and the included angle between the rocker arms and the horizontal line is-135 degrees;
the rocker arm 2 connected to the drive shaft 1 located in the middle is arranged obliquely to the upper right at an angle of 45 ° to the horizontal.
In some embodiments, the pressure plate 3 is removably connected to the corresponding drive shaft 1 by means of bolts 4, the bolts 4 being fitted with retaining washers 5.
In some embodiments, the first link 6 and the second link 15 are detachably connected to the corresponding rocker arm 2 through a connection structure consisting of the first pin 7, the washer 8 and the first split pin 9.
When installing the rocker arm structure of this embodiment, install three rocking arm 2 on the drive shaft 1 that corresponds earlier, then with first connecting rod 6 and second connecting rod 15 through first round pin axle 7, the connection structure that packing ring 8 and first split pin 9 are constituteed is installed on the rocking arm 2 that corresponds, then according to the angle position of blade position global adjustment rocking arm 2 in the valve body, treat the errorless back of blast gate global structure/blade angle, install clamp plate 3 in the rocking arm 2 outside and make clamp plate 3 compress tightly rocking arm 2 through bolt 4 and backstop packing ring 5, correspond bolt specification torquemeter at last to bolt 4, use torque wrench to tighten bolt 4, thereby reach the tapering auto-lock of drive shaft 1 and rocking arm 2, interference fit, realize the transmission of moment of torsion.
Example 2
This embodiment provides a dismounting tool for a rocker arm structure of an actuating air valve blade according to embodiment 1, as shown in fig. 4, including:
a tension bolt 14, wherein one end of the tension bolt 14 is a tapered end, and the tapered end of the tension bolt 14 is matched with a mounting hole for mounting the pressing plate 3 of the driving shaft 1 of the rocker arm structure of the driving air valve blade in the embodiment 1, so that the tapered end of the tension bolt 14 is propped against the driving shaft 1 through the mounting hole;
the pulling sleeve 13 is sleeved on the pull bolt 14, and the pulling sleeve 13 is in threaded connection with the pull bolt 14;
the pulling claw 10 is arranged on one side, close to the conical end of the pulling bolt 14, of the pulling sleeve 13, and the pulling claw 10 is fixedly connected with the pulling sleeve 13.
In some embodiments, the pulling claw 10 is detachably connected to the pulling sleeve 13 through a connecting structure formed by the second pin 11 and the second cotter pin 12, as shown in fig. 5.
When the rocker arm structure for driving the air valve blade, which is described in embodiment 1, is disassembled, the bolt 4 and the retaining washer 5 are firstly unscrewed/disassembled, the pressing plate 3 is disassembled, then the disassembling tool of the embodiment is placed according to fig. 6, the conical end of the pull bolt 14 is used for propping against the mounting hole of the driving shaft 1 for mounting the pressing plate 3, the pull claw 10 is used for clamping the rocker arm 2, then the pull claw 10 is fixed through the second pin shaft 11 and the second split pin 12, the pull claw 10 is used for clamping the rocker arm 2, then the wrench is used for clamping the other end of the pull bolt 14, so that the pull bolt 14 is rotated, the pull sleeve 13 pulls the rocker arm 2 through the pull claw 10 to loosen in the direction away from the driving shaft 1, then the disassembling tool of the embodiment is removed, and then the rocker arm 2 is disassembled.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. A rocker arm structure for driving a vane of an air valve, comprising:
the three rocker arms (2) are sleeved at the shaft head ends of the three driving shafts (1) in a one-to-one corresponding manner;
the three pressing plates (3) are correspondingly arranged on the outer sides of the three rocker arms (2) one by one and press the corresponding rocker arms (2);
wherein:
the shaft head end of the driving shaft (1) connected with the rocker arm (2) has a certain taper, and the rocker arm (2) is provided with a corresponding taper hole;
the rocker arm (2) is in interference fit with a shaft head end with a certain taper of the driving shaft (1) through a taper hole;
the pressing plate (3) is fixedly connected with the driving shaft (1) where the corresponding rocker arm (2) is located;
the three driving shafts (1) are connected with the connecting rod structure through the corresponding three rocker arms (2).
2. The rocker arm structure for actuating a vane of an air valve as claimed in claim 1, wherein the link structure comprises:
one end of the first connecting rod (6) is rotatably connected with the end part of the rocker arm (2) connected with the driving shaft (1) positioned at the bottom through a pin shaft;
one end of the second connecting rod (15) is rotatably connected with the end part of the rocker arm (2) connected with the driving shaft (1) positioned in the middle through a pin shaft;
wherein:
the other ends of the first connecting rod (6) and the second connecting rod (15) are rotatably connected with the end part of the rocker arm (2) connected with the driving shaft (1) positioned at the top through a pin shaft.
3. The rocker arm structure for actuating a damper blade according to claim 2, characterised in that the two rocker arms (2) connected to the top and bottom drive shafts (1) are arranged inclined to the left and downwards at an angle of-135 ° to the horizontal;
the rocker arm (2) connected to the drive shaft (1) located in the middle is arranged obliquely to the upper right at an angle of 45 ° to the horizontal.
4. The rocker arm structure for driving a vane of an air valve according to claim 2, wherein the first connecting rod (6) and the second connecting rod (15) are detachably connected with the corresponding rocker arm (2) through a connecting structure consisting of the first pin shaft (7), the gasket (8) and the first cotter pin (9).
5. The rocker arm structure for driving the air valve blade is characterized in that the pressure plate (3) is detachably connected with the corresponding driving shaft (1) through a bolt (4);
the bolt (4) is matched with a retaining washer (5).
6. A kind of driving blast gate blade's structural extracting tool of rocker arm, characterized by that, comprising:
a tension bolt (14), wherein one end of the tension bolt (14) is a conical end, and the conical end of the tension bolt (14) is matched with a mounting hole for mounting a pressing plate (3) on a driving shaft (1) of a rocker arm structure of a driving air valve blade according to any one of claims 1 to 5;
the pulling sleeve (13), the pulling sleeve (13) is sleeved on the pulling bolt (14) and is in threaded connection with the pulling bolt (14);
the pulling claw (10) is arranged on one side, close to the conical end of the tension bolt (14), of the pulling sleeve (13), and the pulling claw (10) is fixedly connected with the pulling sleeve (13).
7. The tool for disassembling the rocker arm structure of the driving air valve blade is characterized in that the pulling claw (10) is detachably and fixedly connected with the pulling sleeve (13) through a connecting structure consisting of a second pin shaft (11) and a second cotter pin (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221798014.9U CN217762307U (en) | 2022-07-13 | 2022-07-13 | Rocker arm structure for driving air valve blade and disassembling tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221798014.9U CN217762307U (en) | 2022-07-13 | 2022-07-13 | Rocker arm structure for driving air valve blade and disassembling tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217762307U true CN217762307U (en) | 2022-11-08 |
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ID=83873279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221798014.9U Active CN217762307U (en) | 2022-07-13 | 2022-07-13 | Rocker arm structure for driving air valve blade and disassembling tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217762307U (en) |
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2022
- 2022-07-13 CN CN202221798014.9U patent/CN217762307U/en active Active
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