CN218718293U - Shaft coupling convenient to spacing - Google Patents
Shaft coupling convenient to spacing Download PDFInfo
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- CN218718293U CN218718293U CN202222934872.8U CN202222934872U CN218718293U CN 218718293 U CN218718293 U CN 218718293U CN 202222934872 U CN202222934872 U CN 202222934872U CN 218718293 U CN218718293 U CN 218718293U
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- sleeve
- shaft
- connecting shaft
- shaft sleeve
- piece
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Abstract
The utility model discloses a shaft coupling convenient for adjusting spacing, the first shaft sleeve is fixed with a first connecting shaft, the other end of the first connecting shaft is provided with a connecting piece, the second connecting shaft is respectively fixed with the first connecting shaft and a third connecting shaft through a fastener, one end of the third connecting shaft is provided with a connecting block, the second shaft sleeve is provided with a second mounting groove matched with the connecting block, one end of the connecting block, which is far away from the third connecting shaft, is fixed with a limiting block, and a first mounting groove is arranged in the second shaft sleeve; and one end of the second shaft sleeve, which is close to the third connecting shaft piece, is sleeved with a protective sleeve. The utility model discloses in, on the one hand, make the connecting block avoid external impact and impaired, make it maintain normal use, on the other hand utilizes the protective screen that the lag found, for the clearance provides dustproof function, increase of service life further avoids the dust to get into the fitting surface of second shaft sleeve and connecting block, stopper and influences the cooperation of screw thread portion and mounting groove one.
Description
Technical Field
The utility model relates to a shaft coupling technical field specifically is a shaft coupling convenient to spacing.
Background
The invention discloses a coupling convenient for adjusting the distance, which is characterized in that an internal thread is arranged in a shaft sleeve and is matched with a threaded rod, the threaded rod is enabled to move left and right by rotating the shaft sleeve, so that the distance between two connecting shafts is adjusted, but when the threaded rod moves left and right continuously, an obvious gap exists between the left end of the shaft sleeve and a connecting shaft, and the gap does not have a protection structure, so that a connecting block is exposed in the external environment, the connecting block is easy to damage due to collision, the internal thread is easy to enter ash, the matching surface of the internal thread and the threaded rod is easy to wear, the negative influence is generated on the matching of the threaded rod and the internal thread, and the long-term use is not facilitated. To this end, a coupling is proposed which facilitates the adjustment of the spacing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shaft coupling convenient to spacing is adjusted to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a shaft coupling convenient for adjusting the distance is designed, and comprises a first shaft sleeve, a second shaft sleeve, a first connecting shaft part, a pair of second connecting shaft parts and a third connecting shaft part, wherein the first shaft sleeve is fixed with the first connecting shaft part, the other end of the first connecting shaft part is provided with a connecting part positioned between the second connecting shaft parts, the second connecting shaft part is respectively fixed with the first connecting shaft part and the third connecting shaft part through fasteners, one end, close to the second shaft sleeve, of the third connecting shaft part is provided with a connecting block, the second shaft sleeve is provided with a second mounting groove matched with the connecting block, one end, far away from the third connecting shaft part, of the connecting block is fixed with a limiting block, the second shaft sleeve is internally provided with a first mounting groove matched with the limiting block in a threaded manner, and the second shaft sleeve is circumferentially provided with a fixing hole communicated with the first mounting groove;
and one end of the second shaft sleeve, which is close to the third connecting shaft piece, is sleeved with a protective sleeve, and one end of the protective sleeve, which is far away from the second shaft sleeve, is abutted against the end face of the third connecting shaft piece through a sealing ring.
Preferably, the limiting block comprises a threaded portion and an installation portion, and the inner walls of the two ends of the installation groove are matched with the threaded portion and the installation portion respectively.
Preferably, a sealing groove is formed in the end face of the third connecting shaft piece, the end portion of the protecting sleeve is inserted into the sealing groove, and the sealing ring is installed between the inner wall of the protecting sleeve and the sealing groove.
Preferably, the protective sleeve is in threaded connection with the second sleeve.
Preferably, a mounting seat is fixed on the second shaft sleeve, a screw rod is inserted between the mounting seat and the protective sleeve, and locking nuts are sleeved at two ends of the screw rod.
Preferably, a spring is fixed at the end of the mounting part, and the other end of the spring is connected with the first mounting groove through a rotating base.
Compared with the prior art, the beneficial effects of the utility model are that: when there is the clearance between second axle sleeve and the third even axle spare, through set up the lag on the clearance of second axle sleeve and third even axle spare, on the one hand, for the connecting block of cup jointing in the second axle sleeve provides the protection, make it avoid external impact and impaired, guaranteed that its performance is not influenced, make it maintain normal use, on the other hand, utilize the protective screen that the lag found, for the clearance provides dustproof function, prevent that the dust from getting into the clearance and adsorbing and expose the surface of second axle sleeve and lead to the connecting block to produce wearing and tearing with higher speed in the connecting block, increase of service life, further avoid the dust to get into the fitting surface of second axle sleeve and connecting block, stopper and influence screw thread portion and mounting groove one's cooperation, effectively maintain normal work, through setting up the sealing washer, further strengthened the sealing performance between lag and the clearance, dustproof nature has been improved.
Drawings
Fig. 1 is a schematic view of an internal structure of a coupling convenient for adjusting a spacing according to the present invention;
fig. 2 is a schematic view of a specific assembly structure of a limiting block of a coupling convenient for adjusting the spacing according to the present invention;
fig. 3 is an enlarged schematic view of a point a in fig. 1.
In the figure: the connecting device comprises a first shaft sleeve 1, a second shaft sleeve 2, a first connecting shaft element 3, a connecting element 4, a second connecting shaft element 5, a third connecting shaft element 6, a connecting block 7, a limiting block 8, a threaded portion 81, an installation portion 82, a first installation groove 9, a spring 10, a rotating base 11, a protection sleeve 12, a sealing groove 13, a sealing ring 14, a screw 15, an installation seat 16, a locking nut 17, a second installation groove 18 and a fixing hole 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
Referring to fig. 1-3, the present invention provides a technical solution: a coupler convenient for adjusting an interval comprises a first shaft sleeve 1, a second shaft sleeve 2, a first connecting shaft piece 3, a pair of second connecting shaft pieces 5 and a third connecting shaft piece 6, wherein two connected shaft bodies are respectively connected with the first shaft sleeve 1 and the second shaft sleeve 2, key grooves matched with the shaft bodies are formed in the first shaft sleeve 1 and the second shaft sleeve 2 so as to be fixed, the first shaft sleeve 1 is fixed with the first connecting shaft piece 3, a connecting piece 4 positioned between the second connecting shaft pieces 5 is arranged at the other end of the first connecting shaft piece 3, the connecting piece 4 is integrally formed or welded with the second connecting shaft pieces 5, the second connecting shaft piece 5 is respectively fixed with the first connecting shaft piece 3 and the third connecting shaft piece 6 through fasteners, the fasteners generally adopt hexagon bolts, the hexagon bolts are uniformly arranged along the circumferential direction of the second connecting shaft piece 5, a connecting block 7 is arranged at one end, close to the second shaft sleeve 2, of the connecting block 7 is integrally formed with the third connecting shaft piece 6 or welded with the third connecting shaft piece 6, a mounting groove 18 matched with the connecting block 7 is formed in the second shaft sleeve 2, one end of the connecting block 7 is far away from the third connecting shaft sleeve 6, and a limiting block 8 is coaxially matched with the second shaft sleeve 8;
further, the limiting block 8 comprises a threaded portion 81 and an installation portion 82, and inner walls of two ends of the first installation groove 9 are respectively matched with the threaded portion 81 and the installation portion 82; as shown in the figure, the threaded portion 81 is located at the left end of the limiting block 8, so that threads matched with the threaded portion 81 are arranged on the inner wall of the left end of the first mounting groove 9;
the first mounting groove 9 is communicated with the second mounting groove 18, and a fixing hole 19 communicated with the first mounting groove 9 is formed in the circumferential direction of the second shaft sleeve 2; after the gap between the second shaft sleeve 2 and the third connecting shaft piece 6 is determined, a bolt is inserted into the second shaft sleeve 2 from the fixing hole 19, and the second shaft sleeve 2 and the limiting block 8 are effectively fixed by interference fit of the bolt and the limiting block 8;
one end of the second shaft sleeve 2, which is close to the third connecting shaft piece 6, is sleeved with a protective sleeve 12; the protective sleeve 12 is made of high-strength metal materials so as to resist external impact;
furthermore, the protective sleeve 12 is in threaded connection with the second shaft sleeve 2, and the protective sleeve 12 and the second shaft sleeve 2 can be installed by rotating the protective sleeve 12, so that the installation and the disassembly are convenient;
furthermore, the second shaft sleeve 2 is connected with an installation seat 16 perpendicular to the surface of the second shaft sleeve 2 through welding, an upright assembly part is arranged at the end part of the protective sleeve 12 close to one end of the second shaft sleeve 2, a screw rod 15 is inserted between the installation seat 16 and the assembly part of the protective sleeve 12, two ends of the screw rod 15 are respectively fixed with the assembly part and the installation seat 16 of the protective sleeve 12 through a locking nut 17, and then the screw thread fit between the protective sleeve 12 and the second shaft sleeve 2 is matched, so that the installation is more stable, and the connection stability of the two shaft bodies is improved;
specifically, there is the clearance when having between second axle sleeve 2 and the third even axle piece 6, through set up the lag in the clearance of second axle sleeve 2 and third even axle piece 6, on the one hand, for cup jointing connecting block 7 in second axle sleeve 2 provides the protection, it is impaired to make it avoid external impact, it is not influenced to have guaranteed that its performance, make it maintain normal use, on the other hand, utilize the protective screen that lag 12 built, for the clearance provides dustproof function, prevent that the dust from getting into the clearance and adsorbing in connecting block 7 exposes the surface of second axle sleeve 2 and lead to the connecting block to produce wearing and tearing with higher speed, increase of service life, further avoid the dust to get into second axle sleeve 2 and connecting block 7, stopper 8's fitting surface and influence screw portion 81 and mounting groove 9's cooperation, effectively maintain normal work.
One end of the protective sleeve 12, which is far away from the second shaft sleeve 2, is abutted against the end face of the third connecting shaft element 6 through a sealing ring 14; the sealing performance of the protective sleeve 12 is further improved by the sealing ring 14;
furthermore, a sealing groove 13 is formed in the end face of the third connecting shaft element 6, the end portion of the protecting sleeve 12 is inserted into the sealing groove 13, the sealing ring 14 is installed between the inner wall of the protecting sleeve 12 and the sealing groove 13, the inner diameter surface of the sealing ring 14 is abutted to the inner diameter surface of the sealing groove 13, and the outer diameter surface of the sealing ring 14 is tightly attached to the inner diameter surface of the protecting sleeve 12, so that the sealing ring 14 is installed;
specifically, by arranging the sealing ring 14, the sealing performance between the protective sleeve 12 and the gap is further enhanced, and the dustproof effect is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a shaft coupling convenient to spacing adjusts, includes first axle sleeve (1), second axle sleeve (2), first even axle spare (3), a pair of second even axle spare (5) and third even axle spare (6), its characterized in that: the first shaft sleeve (1) is fixed with a first connecting shaft piece (3), a connecting piece (4) positioned between second connecting shaft pieces (5) is arranged at the other end of the first connecting shaft piece (3), the second connecting shaft pieces (5) are respectively fixed with the first connecting shaft pieces (3) and the third connecting shaft pieces (6) through fasteners, a connecting block (7) is arranged at one end, close to the second shaft sleeve (2), of the third connecting shaft pieces (6), a second mounting groove (18) matched with the connecting block (7) is formed in the second shaft sleeve (2), a limiting block (8) is fixed at one end, far away from the third connecting shaft pieces (6), of the connecting block (7), a first mounting groove (9) in threaded fit with the limiting block (8) is formed in the second shaft sleeve (2), and a fixing hole (19) communicated with the first mounting groove (9) is formed in the circumferential direction of the second shaft sleeve (2);
one end, close to the third connecting shaft piece (6), of the second shaft sleeve (2) is sleeved with a protective sleeve (12), and one end, far away from the second shaft sleeve (2), of the protective sleeve (12) is abutted to the end face of the third connecting shaft piece (6) through a sealing ring (14).
2. A coupling for facilitating spacing adjustment according to claim 1, wherein: the limiting block (8) comprises a threaded portion (81) and an installation portion (82), and the inner walls of the two ends of the first installation groove (9) are matched with the threaded portion (81) and the installation portion (82) respectively.
3. A coupling for facilitating spacing adjustment according to claim 1, wherein: and a sealing groove (13) is formed in the end face of the third connecting shaft piece (6), the end part of the protecting sleeve (12) is inserted into the sealing groove (13), and the sealing ring (14) is arranged between the inner wall of the protecting sleeve (12) and the sealing groove (13).
4. A coupling for facilitating spacing adjustment according to claim 1, wherein: the protective sleeve (12) is in threaded connection with the second shaft sleeve (2).
5. A coupling for facilitating spacing adjustment according to claim 4, wherein: and a mounting seat (16) is fixed on the second shaft sleeve (2), a screw rod (15) is inserted between the mounting seat (16) and the protective sleeve (12), and locking nuts (17) are sleeved at two ends of the screw rod (15).
6. A coupling for facilitating spacing adjustment according to claim 2, wherein: the spring (10) is fixed at the end of the mounting part (82), and the other end of the spring (10) is connected with the first mounting groove (9) through the rotating base (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222934872.8U CN218718293U (en) | 2022-11-04 | 2022-11-04 | Shaft coupling convenient to spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222934872.8U CN218718293U (en) | 2022-11-04 | 2022-11-04 | Shaft coupling convenient to spacing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218718293U true CN218718293U (en) | 2023-03-24 |
Family
ID=85604799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222934872.8U Active CN218718293U (en) | 2022-11-04 | 2022-11-04 | Shaft coupling convenient to spacing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218718293U (en) |
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2022
- 2022-11-04 CN CN202222934872.8U patent/CN218718293U/en active Active
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