CN209856256U - Pin coupling for long shaft distance - Google Patents
Pin coupling for long shaft distance Download PDFInfo
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- CN209856256U CN209856256U CN201920422369.XU CN201920422369U CN209856256U CN 209856256 U CN209856256 U CN 209856256U CN 201920422369 U CN201920422369 U CN 201920422369U CN 209856256 U CN209856256 U CN 209856256U
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- middle joint
- outer expansion
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Abstract
The utility model relates to a pin shaft coupling for major axis interval, the middle section comprises middle section axle, left and right flange locking mechanism (5), flange locking mechanism (5) comprises internal contracting tight cover (51), external expanding tight cover (52), clamping extrusion screw (53), locating sleeve (54); the excircle surface of the inner tightening sleeve (51) is matched with the inner hole conical surface of the outer expansion sleeve (52), and the inner tightening sleeve (51) and the outer expansion sleeve (52) are axially tightened by clamping and extruding screws (53), so that the left and right middle joints are fixedly connected with the middle joint shaft (41) in a locking manner. When the flange at the end of the middle section is worn and damaged, the middle section is disassembled, the clamping and extruding screw (53) is loosened to unlock the flange locking mechanism (5), and the damaged left flange or right flange of the middle section is replaced without replacing the whole middle section.
Description
Technical Field
The utility model relates to a pin shaft coupling, especially a pin shaft coupling for long wheel base uses.
Background
The pin coupling comprises a driving end half shaft coupling, a middle coupling, a driven end half shaft coupling, an elastic sleeve and a pin, and is bilaterally symmetrical, and flanges at the left end and the right end of the middle coupling are connected with a flange of the driving end half shaft coupling and a flange of the driven end half shaft coupling through the elastic sleeve and the pin. The novel air conditioner has the characteristics of certain compensation capacity, simple structure and convenience in installation. However, when the distance between shafts is long, such as a pin coupling for a cooling tower, the length of the middle section of the pin coupling is as long as 2 meters, if an end flange of the middle section of the shaft coupling is damaged and needs to be maintained, the elastic sleeve and the pin are disassembled, the middle section is hoisted out of the cooling tower and then is hoisted into a new middle section again to perform integral replacement of the middle section, the assembly and disassembly are difficult, and the integral replacement cost of the middle section is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of above-mentioned prior art, provide a round pin shaft coupling suitable for major axis interval, the festival in the middle of the maintenance of being convenient for.
The utility model discloses constitute by drive end half coupling 1a, driven end half coupling 1b, pin 2, elastic sleeve 3, middle festival subassembly 4.
The middle joint assembly 4 is bilaterally symmetrical in structure and comprises a middle joint shaft 41, a middle joint left flange 42a, a middle joint right flange 42b and a flange locking mechanism 5, wherein the flange locking mechanism 5 comprises an inner contracting sleeve 51, an outer expanding sleeve 52, a clamping extrusion screw 53 and a positioning sleeve 54.
Flange locking mechanisms 5 are respectively arranged between the middle-section left flange 42a, the middle-section right flange 42b and the middle-section shaft 41; the outer circle surface of the inner shrink sleeve 51 is a conical surface with a certain taper, and an inner sleeve flange 511 is arranged on the inner shrink sleeve 51; the inner hole of the outer expansion sleeve 52 is a taper hole corresponding to the outer conical surface of the inner contraction sleeve 51, and an outer sleeve flange 521 is arranged on the outer expansion sleeve 52.
The inner hole of the inner tightening sleeve 51 is arranged in a sliding fit with the middle joint shaft 41, the inner hole of the outer expansion sleeve 52 is arranged in a sliding fit with the outer circle of the inner tightening sleeve 51, and the outer circle of the outer expansion sleeve 52 is arranged in a sliding fit with the central hole of the middle joint left flange 42 a/the middle joint right flange 42 b; the positioning sleeve 54 is installed between the outer circumferential surface of the outer sleeve flange 521 of the outer expansion sleeve 52, the end surface of the middle section left flange 42 a/the middle section right flange 42b, and the end surface of the inner sleeve flange 511 of the inner contraction sleeve 51.
The inner sleeve flange 511 of the inner shrink sleeve 51 is connected with the outer sleeve flange 521 of the outer expansion sleeve 52 through a clamping extrusion screw 53, the inner shrink sleeve 51 and the outer expansion sleeve 52 are axially tightened, the inner shrink sleeve 51 and the outer expansion sleeve 52 mutually clamp the inner shrink sleeve 51 on the middle joint shaft 41 through the action of matched conical surfaces, and the outer expansion sleeve 52 is tightly expanded on a central hole of the middle joint left flange 42 a/the middle joint right flange 42b, so that the middle joint left flange 42 a/the middle joint right flange 42b is fixedly connected with the middle joint shaft 41 in a locking manner.
The utility model discloses middle section axle 41 is the structure for the components of a whole that can function independently with middle section left flange 42a and middle section right flange 42b at its both ends, and middle section left flange 42a and middle section right flange 42b realize the fastening through locking mechanism 5 and middle section axle 41 respectively and decide and be connected. When the middle joint left flange 42a and the middle joint right flange 42b are worn and damaged, the elastic sleeve 2 and the pin 3 connected with the driving end half shaft joint 1a and the driven end half shaft joint 1b are disassembled, the middle joint assembly 4 is disassembled, the clamping and extruding screw 53 is loosened to unlock the flange locking mechanism 5, the middle joint assembly 4 is moved to the edge of the flange plates of the driving end half shaft joint 1 and the driven end half shaft joint 2 in the radial direction, the middle joint shaft 41 is properly inclined to expose the middle joint left flange 42a or the middle joint right flange 42b to be replaced for replacement and assembly and disassembly, then the middle joint assembly 4 is reset, the elastic sleeve 2 and the pin 3 are installed to be in butt joint with the flange plates of the driving end half shaft joint 1 and the driven end half shaft joint 2, and the replaced middle joint left flange 42a or the middle joint right flange 42b is tightly connected by the flange locking mechanism 5.
The utility model discloses specially adapted long axis interval's pin shaft coupling, like the pin shaft coupling for the cooling tower, need not lift the interlude of whole pin shaft coupling off completely and take out and change whole interlude, can only change the left flange of interlude or the left flange of interlude of damage in the cooling tower.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of fig. 1, showing the engagement state before the locking mechanism 5 is locked.
Fig. 3 is a view taken along direction K of fig. 1, which shows that a jack screw hole 512 is formed in an inner sleeve flange 511 of the inner shrink sleeve 51.
Detailed Description
The utility model discloses constitute by drive end half coupling 1a, driven end half coupling 1b, pin 2, elastic sleeve 3, middle festival subassembly 4.
The middle joint assembly 4 is bilaterally symmetrical in structure and comprises a middle joint shaft 41, a middle joint left flange 42a, a middle joint right flange 42b and a flange locking mechanism 5, wherein the flange locking mechanism 5 comprises an inner contracting sleeve 51, an outer expanding sleeve 52, a clamping extrusion screw 53 and a positioning sleeve 54.
Flange locking mechanisms 5 are respectively arranged between the middle-section left flange 42a, the middle-section right flange 42b and the middle-section shaft 41; the outer circle surface of the inner tightening sleeve 51 is a conical surface with a certain taper, and an inner sleeve end flange 511 is arranged on the inner tightening sleeve 51; the inner hole of the outer expansion sleeve 52 is a taper hole corresponding to the outer conical surface of the inner contraction sleeve 51, and an outer sleeve flange 521 is arranged on the outer expansion sleeve 52.
The inner hole of the inner tightening sleeve 51 is arranged in a sliding fit with the middle joint shaft 41, the inner hole of the outer expansion sleeve 52 is arranged in a sliding fit with the outer circle of the inner tightening sleeve 51, and the outer circle of the outer expansion sleeve 52 is arranged in a sliding fit with the central hole of the middle joint left flange 42 a/the middle joint right flange 42 b; the positioning sleeve 54 is installed between the outer circumferential surface of the outer sleeve flange 521 of the outer expansion sleeve 52, the end surface of the middle section left flange 42 a/the middle section right flange 42b, and the end surface of the inner sleeve flange 511 of the inner contraction sleeve 51.
The inner sleeve flange 511 of the inner shrink sleeve 51 is connected with the outer sleeve flange 521 of the outer expansion sleeve 52 through a clamping extrusion screw 53, the inner shrink sleeve 51 and the outer expansion sleeve 52 are axially tightened, the inner shrink sleeve 51 and the outer expansion sleeve 52 mutually clamp the inner shrink sleeve 51 on the middle joint shaft 41 through the action of matched conical surfaces, and the outer expansion sleeve 52 is tightly expanded on a central hole of the middle joint left flange 42 a/the middle joint right flange 42b, so that the middle joint left flange 42 a/the middle joint right flange 42b is fixedly connected with the middle joint shaft 41 in a locking manner.
When the flange locking mechanism 5 is unlocked, the clamping and squeezing screw 53 is loosened, so that the axial tension of the inner tightening sleeve 51 and the outer tightening sleeve 52 is loosened. As shown in figure 3, in order to ensure that the axial tensioning force of the inner tightening sleeve 51 and the outer tightening sleeve 52 can be completely released, a jackscrew screw hole 512 is formed in an inner sleeve flange 511 of the inner tightening sleeve 51, and a detached clamping extrusion screw 53 can be used as a jackscrew to rotate into the jackscrew hole 512 to axially jack the inner tightening sleeve 51 and the outer tightening sleeve 52 for loosening.
Claims (1)
1. A pin coupling for long shaft spacing is characterized by comprising a driving end half shaft joint (1a), a driven end half shaft joint (1b), a pin (2), an elastic sleeve (3) and a middle joint component (4);
the middle joint assembly (4) is bilaterally symmetrical in structure and comprises a middle joint shaft (41), a middle joint left flange (42a), a middle joint right flange (42b) and a flange locking mechanism (5), wherein the flange locking mechanism (5) comprises an inner tightening sleeve (51), an outer expansion sleeve (52), a clamping extrusion screw (53) and a positioning sleeve (54);
flange locking mechanisms (5) are respectively arranged between the middle section left flange (42a), the middle section right flange (42b) and the middle section shaft (41); the outer circle surface of the inner tightening sleeve (51) is a conical surface with a certain taper, and an inner sleeve flange plate (511) is arranged on the inner tightening sleeve (51); the inner hole of the outer expansion sleeve (52) is a taper hole corresponding to the outer conical surface of the inner contraction sleeve (51), and an outer sleeve flange plate (521) is arranged on the outer expansion sleeve (52);
an inner hole of the inner tightening sleeve (51) is installed with the middle joint shaft (41) in a sliding fit manner, an inner hole of the outer expansion sleeve (52) is matched with the excircle of the inner tightening sleeve (51), and the excircle of the outer expansion sleeve (52) is installed with the central holes of the middle joint left flange (42 a)/the middle joint right flange (42b) in a sliding fit manner; the positioning sleeve (54) is arranged between the outer circular surface of the outer sleeve flange (521) of the outer expansion sleeve (52), the end surface of the middle section left flange (42 a)/the middle section right flange (42b) and the end surface of the inner sleeve flange (511) of the inner contraction sleeve (51);
an inner sleeve flange (511) of the inner shrink sleeve (51) is connected with an outer sleeve flange (521) of the outer expansion sleeve (52) through a clamping extrusion screw (53), the inner shrink sleeve (51) and the outer expansion sleeve (52) are axially tightened, the inner shrink sleeve (51) and the outer expansion sleeve (52) mutually clamp the inner shrink sleeve (51) on the middle joint shaft (41) through the action of matched conical surfaces, and the outer expansion sleeve (52) is tightly expanded on a central hole of the middle joint left flange (42 a)/the middle joint right flange (42b) so that the middle joint left flange (42 a)/the middle joint right flange (42b) are fixedly connected with the middle joint shaft (41) in a locking way;
the inner sleeve flange (511) of the inner shrink sleeve (51) is provided with a jackscrew hole (512).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920422369.XU CN209856256U (en) | 2019-03-31 | 2019-03-31 | Pin coupling for long shaft distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920422369.XU CN209856256U (en) | 2019-03-31 | 2019-03-31 | Pin coupling for long shaft distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856256U true CN209856256U (en) | 2019-12-27 |
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ID=68935660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920422369.XU Active CN209856256U (en) | 2019-03-31 | 2019-03-31 | Pin coupling for long shaft distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209856256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882519A (en) * | 2019-03-31 | 2019-06-14 | 丹东克隆先锋泵业有限公司 | A kind of pin coupler for long distance between axles |
| CN112128259A (en) * | 2020-09-21 | 2020-12-25 | 株洲时代新材料科技股份有限公司 | Coupling with rubber bushing |
-
2019
- 2019-03-31 CN CN201920422369.XU patent/CN209856256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882519A (en) * | 2019-03-31 | 2019-06-14 | 丹东克隆先锋泵业有限公司 | A kind of pin coupler for long distance between axles |
| CN112128259A (en) * | 2020-09-21 | 2020-12-25 | 株洲时代新材料科技股份有限公司 | Coupling with rubber bushing |
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