CN219692432U - Connecting sleeve - Google Patents
Connecting sleeve Download PDFInfo
- Publication number
- CN219692432U CN219692432U CN202320546805.0U CN202320546805U CN219692432U CN 219692432 U CN219692432 U CN 219692432U CN 202320546805 U CN202320546805 U CN 202320546805U CN 219692432 U CN219692432 U CN 219692432U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- connecting sleeve
- connecting hole
- shaft
- shaft head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 description 9
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a connecting sleeve, which belongs to the technical field of mechanical equipment and aims to solve the technical problem that the connecting sleeve is worn after long-time use due to the fact that the connecting sleeve is not tightly matched with a valve plate shaft head to at least a certain extent. The air reversing valve shaft sleeve comprises a first connecting shaft sleeve and a second connecting shaft sleeve, wherein the first connecting shaft sleeve is coaxially connected with the second connecting shaft sleeve, a first connecting hole penetrating through two ends is formed in the first connecting sleeve, the length of the first connecting hole is not smaller than that of a shaft head, the shaft head can be completely inserted into the first connecting hole, the matching length of the shaft head and the first connecting hole is large, the first connecting shaft sleeve is tightly matched with the shaft head, meanwhile, the aperture size of the first connecting hole is in interference fit with the outer diameter size of the shaft head, so that the first connecting shaft sleeve is in clearance-free installation with a valve plate, the first connecting sleeve is tightly matched with the valve plate shaft head, and abrasion of the valve plate shaft head to the first connecting hole is avoided.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to a connecting sleeve.
Background
At present, a regenerative heating furnace adopted for heating steel rolling in a certain factory needs a quick-cutting valve to change direction every 40 seconds for combustion. Most of the problems of loose closing of the air and smoke quick-cutting valve can occur after the smoke quick-cutting valve is used throughout the year. Through inspection, the reason that the quick cut valve for gas, air and smoke of the heating furnace is not tightly closed is that the connecting sleeve on the actuator is not tightly matched with the shaft head of the valve plate, so that the connecting sleeve is worn in the long-time use process, and the rectifying quantity is generated.
Disclosure of Invention
The utility model aims to provide a connecting sleeve, which solves the technical problem that the connecting sleeve is not tightly matched with a valve plate shaft head in the background technology to a certain extent, so that the connecting sleeve is worn after long-time use.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a connecting sleeve for connecting a driving shaft of an actuator and a shaft head of a valve plate, comprising,
the first connecting sleeve is provided with first connecting holes penetrating through two ends, the length of each first connecting hole is not smaller than the length of the shaft head, and the aperture size of each first connecting hole is in interference fit with the outer diameter size of the shaft head;
the second connecting sleeve is provided with a second connecting hole penetrating through two ends, the second connecting hole is arranged in a manner of being matched with a driving shaft of the actuator, and the second connecting sleeve is coaxially connected with one end of the first connecting sleeve.
Further, the first connecting hole is formed in the central portion of the first connecting sleeve, and the first connecting hole is square.
Further, the second connecting hole is formed in the center of the second connecting sleeve, and the first connecting hole is square.
Further, the first connection hole is smaller than the second connection hole.
Still further, the first connecting hole is provided with an inner chamfer at an end portion far away from the second connecting sleeve, and the second connecting hole is provided with an inner chamfer at an end portion far away from the first connecting sleeve.
Further, the first connecting sleeve and the second connecting sleeve are welded.
Further, the outer diameter of one end of the first connecting sleeve far away from the second connecting sleeve is smaller than that of the other end, and the outer diameter of the second connecting sleeve is equal to that of the connected end of the first connecting sleeve.
Still further, a plurality of stop iron mounting holes are formed in the side wall of the second connecting sleeve in a circumferential clearance mode, and the central axis of each stop iron mounting hole is perpendicular to the central axis of the second connecting sleeve and used for detachably mounting stop iron.
Furthermore, two stop iron mounting holes are formed in the second connecting sleeve.
Furthermore, an internal thread is arranged in the stop iron mounting hole and is used for being in threaded connection with the stop iron.
Compared with the prior art, the utility model has the beneficial effects that at least:
because the air reversing valve shaft sleeve comprises the first connecting shaft sleeve and the second connecting shaft sleeve, the first connecting shaft sleeve and the second connecting shaft sleeve are coaxially connected, the first connecting sleeve is provided with the first connecting holes penetrating through two ends, the length of the first connecting holes is not smaller than that of the shaft heads, the shaft heads can be completely inserted into the first connecting holes, the matching length of the shaft heads and the first connecting holes is large, the first connecting shaft sleeve is tightly matched with the shaft heads, meanwhile, the aperture size of the first connecting holes is in interference fit with the outer diameter size of the shaft heads, so that the first connecting shaft sleeve and the valve plate shaft heads are installed without gaps, the first connecting sleeve is tightly matched with the valve plate shaft heads, and abrasion of the valve plate shaft heads to the first connecting holes is avoided.
Drawings
FIG. 1 is a cross-sectional view of a connecting sleeve of the present utility model;
FIG. 2 is a front view of the connecting sleeve of the present utility model;
FIG. 3 is an end view of a first coupling sleeve of the present utility model;
FIG. 4 is an end view of a second coupling sleeve of the present utility model;
in the figure: 1. a first connecting sleeve; 2. a first connection hole; 3. a second connecting sleeve; 4. a second connection hole; 5. and a stop iron mounting hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
At present, a regenerative heating furnace adopted for heating steel rolling needs to be combusted by a quick-cut valve every 40 seconds for reversing. Most of the problems of loose closing of the air and smoke quick-cutting valve can occur after the smoke quick-cutting valve is used throughout the year. On one hand, the combustion in the hearth is incomplete, the control of the combustion atmosphere in the hearth is affected, the tail of the hearth is flamed, and the discharge exceeds the standard, pollutes the environment and wastes energy. On the other hand, if the air quick-cutting valve on the heat storage burner is not tightly closed, air is directly pumped away by smoke, the smoke is insufficient, the temperature of the smoke is low, the heat exchange efficiency of the heat storage box is reduced, the purposes of heat storage and energy conservation are not achieved, and energy is wasted. Through inspection, the reason that the quick cut valve for gas, air and smoke of the heating furnace is not tightly closed is that the connecting sleeve on the actuator is not tightly matched with the shaft head of the valve plate, so that the connecting sleeve is worn in the long-time use process, and the rectifying quantity is generated.
The present utility model provides a coupling sleeve for coupling a driving shaft of an actuator with a head of a valve plate, comprising a first coupling sleeve 1 and a second coupling sleeve 3, wherein, in combination with figure 1,
the first connecting sleeve 1 is provided with a first connecting hole 2 penetrating through two ends, the length of the first connecting hole 2 is not smaller than the length of the shaft head, and the aperture size of the first connecting hole 2 is in interference fit with the outer diameter size of the shaft head.
The second connecting sleeve 3 is provided with a second connecting hole 4 penetrating through two ends, the second connecting hole 4 is arranged in a manner of being matched with a driving shaft of the actuator, and the second connecting sleeve 3 is coaxially connected with one end of the first connecting sleeve 1.
The air reversing valve shaft sleeve comprises a first connecting shaft sleeve and a second connecting shaft sleeve, wherein the first connecting shaft sleeve and the second connecting shaft sleeve are coaxially connected, the first connecting sleeve 1 is provided with first connecting holes 2 penetrating through two ends, the length of each first connecting hole 2 is not smaller than that of a shaft head, the shaft head can be completely inserted into the first connecting holes 2, the matching length of the shaft head and the first connecting holes 2 is large, the first connecting shaft sleeve is tightly matched with the shaft head, the aperture size of the first connecting holes 2 is in interference fit with the outer diameter size of the shaft head, so that the first connecting shaft sleeve and the valve plate shaft head are in clearance-free installation, the first connecting sleeve is tightly matched with the valve plate shaft head, and abrasion of the valve plate shaft head to the first connecting holes 2 is avoided.
Specifically, the mounting method of the first connecting hole 2 and the shaft head is as follows: the first connecting shaft sleeve is heated and expanded, high-temperature lubricating grease is smeared on the valve plate shaft head, the valve plate shaft head is inserted into the first connecting hole 2, after cooling, the first connecting shaft sleeve and the valve plate shaft head are connected together without gaps, and when the connecting shaft sleeve drives the valve plate shaft head to move, the shaft head and the first connecting hole 2 do not slide relatively, and abrasion of the connecting sleeve is avoided.
In one embodiment, referring to fig. 2, a plurality of stopper mounting holes 5 are formed in a circumferential gap on a sidewall of the second connecting sleeve 3, and a central axis of the stopper mounting hole 5 is perpendicular to a central axis of the second connecting sleeve 3 for detachably mounting the stopper.
In one embodiment, two stop iron mounting holes 5 are arranged on the second connecting sleeve 3.
In one embodiment, the stop iron mounting hole 5 is internally provided with an internal thread for threaded connection with the stop iron.
The prior art is characterized in that the stop iron is welded and fixed on the connecting sleeve, so that after the stop iron is damaged, the connecting sleeve is required to be detached from the site to be welded at a designated place, the stop iron installation and replacement efficiency is low, and the threaded connection method in the scheme is used, so that an operator can conveniently detach and replace the stop iron on site without detaching the connecting sleeve, and the stop iron installation and replacement efficiency is improved.
In one embodiment, the first connecting hole 2 is disposed at the center of the first connecting sleeve 1, and the first connecting hole 2 is disposed in a square shape.
In one embodiment, the second connecting hole 4 is disposed at the center of the second connecting sleeve 3, and the first connecting hole 2 is disposed in a square shape.
Wherein the first connecting hole 2 and the second connecting hole 4 are machined by adopting a wire electric discharge machine, so that machining precision is ensured.
Thus, the square first connecting hole 2 is matched with the shaft head, and the square second connecting hole 4 is matched with the driving shaft in the process, so that the driving shaft can drive the connecting sleeve, and the shaft head is driven to move through the connecting sleeve.
In one embodiment, the first connecting hole 2 is smaller than the second connecting hole 4, in this embodiment, the side length of the first connecting hole 2 is 16mm, the first connecting hole is in interference fit with the valve plate shaft head, the side length of the second connecting hole 4 is 20mm, and the second connecting hole is in clearance fit with the driving shaft of the actuator.
In one embodiment, referring to fig. 3 and 4, the end of the first connecting hole 2 far from the second connecting sleeve 3 is provided with an inner chamfer, the end of the second connecting hole 4 far from the first connecting sleeve is provided with an inner chamfer, wherein the inner chamfer can be 40 ° -60 °, and the end of the first connecting hole 2 and the end of the second connecting hole 4 are provided with inner chamfers, so that the installation of a valve plate shaft head and a driving shaft of an actuator is facilitated.
In one embodiment, the first connecting sleeve 1 and the second connecting sleeve 3 are welded, wherein the first connecting sleeve 1 and the second connecting sleeve 3 can also be integrally formed.
In one embodiment, the outer diameter of one end of the first connecting sleeve 1 far away from the second connecting sleeve 3 is smaller than the outer diameter of the other end, and the outer diameter of the second connecting sleeve 3 is equal to the outer diameter of the connected end of the first connecting sleeve 1. The first connecting sleeve 1 is provided with different outer diameters, so that the clamping effect is achieved when the first connecting sleeve 1 and the second connecting sleeve 3 are welded conveniently, and meanwhile, when a welding part is machined, the smaller outer diameter part of the first connecting sleeve 1 is clamped to be a reference surface, so that the accuracy of the external machining dimension of the welding part is higher.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A connecting sleeve for connecting a driving shaft of an actuator and a shaft head of a valve plate, which is characterized by comprising,
the first connecting sleeve is provided with first connecting holes penetrating through two ends, the length of each first connecting hole is not smaller than the length of the shaft head, and the aperture size of each first connecting hole is in interference fit with the outer diameter size of the shaft head;
the second connecting sleeve is provided with a second connecting hole penetrating through two ends, the second connecting hole is arranged in a manner of being matched with a driving shaft of the actuator, and the second connecting sleeve is coaxially connected with one end of the first connecting sleeve.
2. The adapter sleeve of claim 1 wherein a plurality of stop-iron mounting holes are provided in the sidewall of the second adapter sleeve at circumferential intervals, the center axis of the stop-iron mounting holes being perpendicular to the center axis of the second adapter sleeve for removably mounting the stop-iron.
3. The connecting sleeve according to claim 2, wherein two of said stopper mounting holes are provided in said second connecting sleeve.
4. A connecting sleeve according to claim 3, wherein said stopper mounting hole is internally threaded for threadably engaging said stopper.
5. The connecting sleeve according to claim 1, wherein the first connecting hole is formed in a central portion of the first connecting sleeve, and the first connecting hole is formed in a square shape.
6. The connecting sleeve according to claim 5, wherein the second connecting hole is formed in a central portion of the second connecting sleeve, and the first connecting hole is formed in a square shape.
7. The connector sleeve of claim 6, wherein said first connector bore is smaller than said second connector bore.
8. A connecting sleeve according to claim 1, wherein the first connecting hole is provided with an inner chamfer at an end remote from the second connecting sleeve, and the second connecting hole is provided with an inner chamfer at an end remote from the first connecting sleeve.
9. The connector sleeve of claim 1, wherein said first connector sleeve is welded to said second connector sleeve.
10. The connector sleeve of claim 9, wherein the outer diameter of the end of the first connector sleeve remote from the second connector sleeve is smaller than the outer diameter of the other end, and the outer diameter of the second connector sleeve is equal to the outer diameter of the end of the first connector sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320546805.0U CN219692432U (en) | 2023-03-20 | 2023-03-20 | Connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320546805.0U CN219692432U (en) | 2023-03-20 | 2023-03-20 | Connecting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692432U true CN219692432U (en) | 2023-09-15 |
Family
ID=87943031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320546805.0U Active CN219692432U (en) | 2023-03-20 | 2023-03-20 | Connecting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692432U (en) |
-
2023
- 2023-03-20 CN CN202320546805.0U patent/CN219692432U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |