CN220330507U - Propeller keyless hydraulic installation structure - Google Patents
Propeller keyless hydraulic installation structure Download PDFInfo
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- CN220330507U CN220330507U CN202321915093.1U CN202321915093U CN220330507U CN 220330507 U CN220330507 U CN 220330507U CN 202321915093 U CN202321915093 U CN 202321915093U CN 220330507 U CN220330507 U CN 220330507U
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- 238000009434 installation Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 239000003921 oil Substances 0.000 claims description 79
- 239000010720 hydraulic oil Substances 0.000 claims description 26
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 208000031872 Body Remains Diseases 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Abstract
In the screw keyless hydraulic installation structure, the terminal surface of A end and hydraulic nut's middle part fixed connection, a plurality of recesses have been seted up around its circumference to hydraulic nut's one end, keyless hydraulic installation structure still includes a plurality of hydraulic mechanisms, hydraulic mechanism includes the kicking block, the kicking block slides and sets up in the recess, the terminal surface of one end of kicking block and the screw hub body are gone up and are close to the terminal surface looks butt of the small diameter end of toper hole, the middle part lateral wall of kicking block and the middle part inner wall sealing fit of recess, the inside of recess is linked together with the oil-out of pump No. one, the oil-out of pump No. two is linked together with the oil duct of seting up on the toper hole inner wall. This design is with a pump and a plurality of recess intercommunication simultaneously, realizes the jacking of a plurality of kicking blocks simultaneously, and a plurality of kicking blocks and the peripheral round of screw hub body terminal surface butt make the even atress of screw hub body terminal surface, and then guarantee that the jacking route of screw hub body remains coaxial all the time with the screw shaft, and assembly precision is good.
Description
Technical Field
The utility model belongs to the technical field of ship manufacturing, and particularly relates to a keyless hydraulic installation structure of a propeller, which is suitable for improving assembly precision.
Background
In the assembly process of the propeller, keyless hydraulic mounting is generally widely used as a conventional mounting process. The keyless hydraulic installation of the propeller is usually to process the matching surfaces of the paired propeller hub body and the propeller shaft into inclined planes with a certain taper, match the propeller hub body and the propeller shaft through the inclined planes, radially pressurize the propeller hub body through a hydraulic nut, lift the propeller hub body onto the inclined planes of the propeller shaft, realize extrusion self-locking of the two inclined planes, and transmit thrust.
Chinese patent: the utility model of application publication number CN114379738A discloses a keyless hydraulic coupling installation structure and method of a propeller, firstly, sleeving a propeller crane on a screw shaft cone, screwing a hydraulic nut, then connecting an axial hydraulic oil pump and a radial hydraulic oil pump, installing a dial indicator, then determining initial push-in amount, comparing the push-in amount with a push-in amount comparison table according to field temperature to obtain axial minimum push-in amount and axial maximum push-in amount, then starting the radial hydraulic oil pump connected on a propeller hub to expand the propeller hub, pushing the propeller under the action of the hydraulic nut at the moment, starting to reduce the pressure of the axial hydraulic oil pump, then pressurizing the axial hydraulic oil pump, and continuously pushing the propeller axially while gradually increasing the oil pressure; continuously raising the oil pressure of the radial hydraulic oil pump to ensure that the hub is expanded and expanded continuously in the radial direction, and continuously pushing the propeller under the action of the hydraulic nut, and repeatedly pushing the propeller forwards continuously until the axial pushing amount of the propeller reaches the range between the axial minimum pushing amount and the axial maximum pushing amount; the following problems still remain with this mounting structure:
1. when the axial hydraulic oil pump is pressurized and pushed into the propeller, the pressurization is uneven, so that the pushing route of the hydraulic nut is not parallel to the central axis of the propeller, the pushing is oblique, and the assembly precision is poor.
2. Because the screw propeller and the screw propeller shaft conical surface are mechanical seals, after hydraulic oil is pumped into the screw propeller inner hole to expand the screw propeller and the screw propeller shaft conical surface seals are invalid, the hydraulic oil can leak out from the two ends of the screw propeller, so that the screw propeller inner hole cannot be expanded to a set value at one time, and the screw propeller inner hole can only be realized by a small expansion mode and a multiple pressing mode at each time, and thus, the assembly operation process is very complicated.
Disclosure of Invention
The present utility model has been made in view of the above problems occurring in the prior art, and an object of the present utility model is to provide a keyless hydraulic mount structure for a propeller, which can improve assembly accuracy.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a screw keyless hydraulic mounting structure, includes screw shaft, screw hub body, hydraulic nut, no. one pump, no. two pumps, the screw shaft includes A end, B end, A end and the toper hole of screw hub body insert the cooperation;
the end face of the end A is fixedly connected with the middle part of a hydraulic nut, one end of the hydraulic nut is provided with a plurality of grooves around the circumference of the hydraulic nut, the keyless hydraulic installation structure further comprises a plurality of hydraulic mechanisms, each hydraulic mechanism comprises a jacking block, the jacking blocks are arranged in the grooves in a sliding mode, one end face of each jacking block is abutted to one end face, close to the small-diameter end of the conical inner hole, of the propeller hub body, the side wall of the middle part of each jacking block is in sealing fit with the inner wall of the middle part of the groove, the inside of the groove is communicated with an oil outlet of a first pump, and the oil outlet of a second pump is communicated with an oil duct formed in the inner wall of the conical inner hole;
the second pump is used for injecting hydraulic oil into the oil duct after the propeller shaft is in insertion fit with the conical inner hole of the propeller hub body so as to expand the conical inner hole;
the first pump is used for injecting hydraulic oil into the groove after the conical inner hole is swelled, and pushing the propeller hub body to axially lift from the end A to the end B of the propeller shaft through the jacking block.
The two-end inner walls of the conical inner hole are respectively provided with a first sealing groove and a second sealing groove, the first sealing groove and the second sealing groove are both used for installing an O-shaped sealing ring, and the oil duct is positioned between the first sealing groove and the second sealing groove.
The oil duct comprises a longitudinal oil duct and a plurality of annular oil ducts, wherein the annular oil duct and the longitudinal oil duct are respectively arranged along the radial direction and the axial direction of the conical inner hole, and two adjacent annular oil ducts are communicated through the longitudinal oil duct.
The inside oil circuit that is provided with of screw hub body, the one end of oil circuit is linked together through the oil-out of second joint and No. two pumps, and the other end of oil circuit sets up the position that is located between two adjacent annular oil ducts on the toper hole inner wall.
The first pump and the second pump are respectively provided with a first pressure gauge and a second pressure gauge.
The displacement detection mechanism is arranged on the end face of one end, close to the large-diameter end of the conical inner hole, of the propeller hub body and is used for detecting the moving distance of the propeller hub body from the end A to the end B of the propeller shaft, and the displacement detection mechanism is a dial indicator.
The end face of the end A is fixed with the middle of the hydraulic nut through two long bolts.
The hydraulic mechanism further comprises a first connector, and two ends of the first connector are respectively communicated with the inside of the groove and the oil outlet of the first pump.
The keyless hydraulic installation structure further comprises a protective sleeve, the protective sleeve is sleeved outside the end B of the propeller shaft, and one end of the protective sleeve is fixed with the end face of one end, close to the large-diameter end of the conical inner hole, of the propeller hub body through a bolt.
A first sealing ring is arranged between the inner wall of the protective sleeve and the outer wall of the end B of the propeller shaft, and a second sealing ring is arranged between the side wall of the middle part of the top block and the inner wall of the middle part of the groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the keyless hydraulic installation structure of the propeller, the end face of the end A is fixedly connected with the middle part of a hydraulic nut, one end of the hydraulic nut is provided with a plurality of grooves around the circumference of the hydraulic nut, the keyless hydraulic installation structure also comprises a plurality of hydraulic mechanisms, each hydraulic mechanism comprises a jacking block, the jacking blocks are arranged in the grooves in a sliding manner, one end face of each jacking block is abutted against one end face of a small-diameter end of a conical inner hole on a propeller hub body, the side wall of the middle part of each jacking block is in sealing fit with the inner wall of the middle part of the groove, the inside of the groove is communicated with an oil outlet of a first pump, and the oil outlet of a second pump is communicated with an oil duct arranged on the inner wall of the conical inner hole; this design is with a pump and a plurality of recess intercommunication simultaneously, realizes the jacking of a plurality of kicking blocks simultaneously, and a plurality of kicking blocks and the even atress of propeller hub body terminal surface of the peripheral circle butt of propeller hub body, and then guarantee that the jacking route of the propeller hub body remains coaxial all the time with the propeller axle, and assembly precision after the jacking is good. Therefore, the utility model has even jacking and good assembly precision.
2. In the keyless hydraulic installation structure of the propeller, the inner walls of the two ends of the conical inner hole are respectively provided with a first sealing groove and a second sealing groove, the first sealing groove and the second sealing groove are both used for installing an O-shaped sealing ring, and an oil duct is arranged between the first sealing groove and the second sealing groove; according to the design, the sealing grooves are respectively formed in the two ends of the conical inner hole, the O-shaped sealing rings are arranged in the sealing grooves, so that even though the machining precision of the conical inner hole is not high, the sealing performance of hydraulic oil in the conical inner hole is guaranteed through the compression amount of the O-shaped sealing rings, hydraulic oil leakage is avoided, the control requirement on the machining precision of the conical inner hole is greatly reduced, meanwhile, the O-shaped sealing rings have higher compression performance, when hydraulic oil is injected into the inner hole of the propeller, the inner hole of the propeller can keep larger expansion amount, and when a hydraulic nut is subsequently used for jacking, the propeller can be guaranteed to realize longer axial movement distance, the disposable installation of the propeller and a propeller shaft can be realized, and the complexity of the conventional hydraulic installation operation is greatly reduced. Therefore, the utility model not only reduces the machining precision requirement of the conical inner hole, but also reduces the complexity of hydraulic installation operation.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the structure of the propeller hub of fig. 1.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the above figures, a propeller shaft 1, an a end 11, a long bolt 111, a B end 12, a propeller hub body 2, a tapered inner bore 21, a first seal groove 211, a second seal groove 212, an oil passage 22, a second joint 23, a hydraulic nut 3, a groove 31, a first pump 4, a first pressure gauge 41, a second pressure gauge 42, a second pump 5, a hydraulic mechanism 6, a top block 61, a second seal ring 611, a first joint 62, an oil passage 7, a longitudinal oil passage 71, an annular oil passage 72, a displacement detection mechanism 8, a protection sleeve 9, and a first seal ring 91.
Detailed Description
The present utility model will be described in further detail with reference to the following detailed description and the accompanying drawings.
Referring to fig. 1 to 3, a propeller keyless hydraulic mounting structure comprises a propeller shaft 1, a propeller hub body 2, a hydraulic nut 3, a first pump 4 and a second pump 5, wherein the propeller shaft 1 comprises an end A11 and an end B12, and the end A11 is in insertion fit with a conical inner hole 21 of the propeller hub body 2;
the end face of the end A11 is fixedly connected with the middle part of the hydraulic nut 3, a plurality of grooves 31 are formed in one end of the hydraulic nut 3 around the circumference of the end, the keyless hydraulic installation structure further comprises a plurality of hydraulic mechanisms 6, each hydraulic mechanism 6 comprises a jacking block 61, each jacking block 61 is slidably arranged in each groove 31, one end face of each jacking block 61 is abutted against one end face of the propeller hub 2, which is close to the small diameter end of the conical inner hole 21, the side wall of the middle part of each jacking block 61 is in sealing fit with the side wall of the middle part of each groove 31, the inside of each groove 31 is communicated with an oil outlet of the corresponding pump No. 4, and the oil outlet of the corresponding pump No. 5 is communicated with an oil duct 7 formed in the inner wall of the conical inner hole 21;
the second pump 5 is used for injecting hydraulic oil into the oil duct 7 after the propeller shaft 1 is in insertion fit with the conical inner hole 21 of the propeller hub body 2 so as to expand the conical inner hole 21;
the pump 4 is used for injecting hydraulic oil into the groove 31 after the conical inner hole 21 is swelled, and pushing the propeller hub body 2 to axially lift from the A end 11 to the B end 12 of the propeller shaft 1 through the jacking block 61.
The inner walls of the two ends of the conical inner hole 21 are respectively provided with a first sealing groove 211 and a second sealing groove 212, the first sealing groove 211 and the second sealing groove 212 are respectively used for installing an O-shaped sealing ring, and the oil duct 7 is positioned between the first sealing groove 211 and the second sealing groove 212.
The oil duct 7 comprises a longitudinal oil duct 71 and a plurality of annular oil ducts 72, wherein the annular oil ducts 72 and the longitudinal oil duct 71 are respectively arranged along the radial direction and the axial direction of the conical inner hole 21, and two adjacent annular oil ducts 72 are communicated through the longitudinal oil duct 71.
The inside oil circuit 22 that is provided with of screw hub body 2, the one end of oil circuit 22 is linked together through second joint 23 with the oil-out of No. two pumps 5, and the other end of oil circuit 22 sets up the position that is located between two adjacent annular oil ducts 72 on the toper hole 21 inner wall.
The first pump 4 and the second pump 5 are respectively provided with a first pressure gauge 41 and a second pressure gauge 42.
The displacement detection mechanism 8 is arranged on the end face of one end, close to the large-diameter end of the conical inner hole 21, of the propeller hub body 2, the displacement detection mechanism 8 is used for detecting the distance of the propeller hub body 2 moving from the end A11 to the end B12 of the propeller shaft 1, and the displacement detection mechanism 8 is a dial indicator.
The end face of the end A11 is fixed with the middle part of the hydraulic nut 3 through two long bolts 111.
The hydraulic mechanism 6 further comprises a first connector 62, and two ends of the first connector 62 are respectively communicated with the inside of the groove 31 and the oil outlet of the first pump 4.
The keyless hydraulic installation structure further comprises a protective sleeve 9, the protective sleeve 9 is sleeved outside the B end 12 of the propeller shaft 1, and one end of the protective sleeve 9 is fixed with one end face, close to the large-diameter end of the conical inner hole 21, of the propeller hub body 2 through bolts.
A first sealing ring 91 is arranged between the inner wall of the protecting sleeve 9 and the outer wall of the B end 12 of the propeller shaft 1, and a second sealing ring 611 is arranged between the middle side wall of the top block 61 and the middle inner wall of the groove 31.
Example 1:
referring to fig. 1, a screw keyless hydraulic installation structure comprises a screw shaft 1, a screw hub body 2, a hydraulic nut 3, a first pump 4, a second pump 5 and four hydraulic mechanisms 6, wherein the screw shaft 1 comprises an A end 11 and a B end 12, the A end 11 is in insertion fit with a conical inner hole 21 of the screw hub body 2, the end face of the A end 11 is fixed with the middle part of the hydraulic nut 3 through two long bolts 111, one end of the hydraulic nut 3 is provided with four grooves 31 around the circumference thereof, the hydraulic mechanisms 6 comprise a top block 61 and a first joint 62, the top block 61 is slidably arranged in the grooves 31, one end face of the top block 61 is abutted against one end face of the screw hub body 2, which is close to the small diameter end of the conical inner hole 21, the middle side wall of the top block 61 is in sealing fit with the middle inner wall of the groove 31 through a second sealing ring 611, one end of the first joint 62 is communicated with the inside of the groove 31, the other ends of the four first joints 62 are simultaneously communicated with oil outlets of the first pump 4, oil outlets of the second pump 5 are communicated with an oil duct 7 formed in the inner wall of the conical inner hole 21, the first pump 4 and the second pump 5 are hand pumps, a first pressure gauge 41 and a second pressure gauge 42 are respectively arranged on the first pump 4 and the second pump 5, a displacement detection mechanism 8 is arranged on the end face of one end, close to the large diameter end of the conical inner hole 21, of the propeller hub body 2, and the displacement detection mechanism 8 is a dial gauge;
the working process of the keyless hydraulic installation structure of the propeller is as follows:
firstly, inserting and matching the propeller shaft 1 and the conical inner hole 21 of the propeller hub body 2, and then injecting hydraulic oil into the oil duct 7 by utilizing the No. two pump 5 to expand the conical inner hole 21; after the conical inner hole 21 is inflated, hydraulic oil is injected into the groove 31 through the pump No. 4, the propeller hub body 2 is pushed by the jacking block 61 to axially jack from the A end 11 to the B end 12 of the propeller shaft 1, the distance of the propeller hub body 2 from the A end 11 to the B end 12 of the propeller shaft 1 is detected by the displacement detection mechanism 8 in the jacking process, and the jacking is repeated until the set jacking distance is reached.
Example 2:
referring to fig. 1 to 3, the inner walls of two ends of the conical inner hole 21 are respectively provided with a first sealing groove 211 and a second sealing groove 212, the first sealing groove 211 and the second sealing groove 212 are both used for installing an O-shaped sealing ring, and the oil duct 7 is positioned between the first sealing groove 211 and the second sealing groove 212;
preparation: firstly, coating lubricating grease on the outer surfaces of two O-shaped sealing rings, then, filling the two O-shaped sealing rings into a first sealing groove 211 and a second sealing groove 212, preventing the O-shaped sealing rings from falling out, filling an A end 11 of a propeller shaft 1 into a conical inner hole 21, enabling an inner conical surface of the conical inner hole 21 to be attached to an outer conical surface of the A end 11, then, installing a hydraulic nut 3 on the A end 11, connecting a first pump 4 and a second pump 5, connecting the first pump 5 to inject hydraulic oil into the shaped inner hole 21, and connecting the first pump 4 to operate the hydraulic nut to lift a propeller hub body 2 from the A end 11 to the B end 12 of the propeller shaft 1;
after the preparation work is finished, firstly, manually operating the first pump 4 to enable the propeller hub body 2 to be tightly attached to the outer conical surface of the propeller shaft 1, simultaneously compressing two O-shaped sealing rings, so that a sealing cavity is formed in the conical inner hole 21, stopping operating when the first pump 4 reaches a set pressure value, resetting the dial indicator to zero at the moment, starting the second pump 5 to inject hydraulic oil into the conical inner hole 21, expanding the conical inner hole 21 until a small amount of hydraulic oil seeps out from the bow and stern or the tail end of the propeller, stopping operating the second pump 5 at the moment, operating the first pump 4 instead, axially jacking the propeller hub body 2, observing the dial indicator at the same time, stopping operating the first pump 4 when the jacking distance reaches a design value, and releasing the pressure of the second pump 5, so that the propeller hub body 2 is tightly locked on the outer conical surface of the propeller shaft 1; after the propeller is installed, the first pump 4 and the second pump 5 are disassembled and the hydraulic nut 3 is locked;
through set up O type sealing washer on the both ends inner wall of toper hole 21, on the one hand, guarantee the leakproofness of hydraulic oil in the toper hole through O type sealing washer, avoid hydraulic oil to reveal, greatly reduced the control requirement to toper hole machining precision, on the other hand, because O type sealing washer has higher compressibility, when pouring into hydraulic oil to the screw hole, can make the screw hole keep great expansion value, when subsequently utilizing hydraulic nut to jack up, can guarantee that the screw realizes longer axial displacement distance, realize the disposable installation of screw and screw axle, simplified hydraulic installation operation.
Example 3:
referring to fig. 2, the oil duct 7 includes a longitudinal oil duct 71 and a plurality of annular oil ducts 72, the annular oil ducts 72 and the longitudinal oil duct 71 are respectively disposed along the radial direction and the axial direction of the tapered inner hole 21, two adjacent annular oil ducts 72 are all communicated through the longitudinal oil duct 71, an oil duct 22 is disposed inside the propeller hub 2, one end of the oil duct 22 is communicated with the oil outlet of the No. two pump 5 through a second joint 23, and the other end of the oil duct 22 is disposed on the inner wall of the tapered inner hole 21 at a position between the two adjacent annular oil ducts 72.
Example 4:
referring to fig. 1, the keyless hydraulic installation structure further comprises a protecting sleeve 9, the protecting sleeve 9 is sleeved outside the B end 12 of the propeller shaft 1, one end of the protecting sleeve 9 is fixed with an end face of the propeller hub 2, which is close to the large diameter end of the conical inner hole 21, through bolts, and a first sealing ring 91 is arranged between the inner wall of the protecting sleeve 9 and the outer wall of the B end 12 of the propeller shaft 1.
Claims (10)
1. The utility model provides a screw keyless hydraulic mounting structure, includes screw axle (1), screw hub body (2), hydraulic nut (3), no. one pump (4), no. two pump (5), screw axle (1) include A end (11), B end (12), the toper hole (21) of A end (11) and screw hub body (2) insert the cooperation, its characterized in that:
the end face of the end A (11) is fixedly connected with the middle part of the hydraulic nut (3), a plurality of grooves (31) are formed in one end of the hydraulic nut (3) around the circumference of the end, the keyless hydraulic installation structure further comprises a plurality of hydraulic mechanisms (6), each hydraulic mechanism (6) comprises a jacking block (61), the jacking blocks (61) are slidably arranged in the grooves (31), one end face of each jacking block (61) is abutted against one end face, close to the small diameter end of the conical inner hole (21), of the propeller hub body (2), the middle side wall of each jacking block (61) is in sealing fit with the middle inner wall of the corresponding groove (31), the inside of the corresponding groove (31) is communicated with an oil outlet of a first pump (4), and an oil outlet of a second pump (5) is communicated with an oil duct (7) formed in the inner wall of the conical inner hole (21);
the second pump (5) is used for injecting hydraulic oil into the oil duct (7) after the propeller shaft (1) is in insertion fit with the conical inner hole (21) of the propeller hub body (2) so as to expand the conical inner hole (21);
the first pump (4) is used for injecting hydraulic oil into the groove (31) after the conical inner hole (21) is swelled, and pushing the propeller hub body (2) to axially lift from the A end (11) to the B end (12) of the propeller shaft (1) through the jacking block (61).
2. The propeller keyless hydraulic mounting structure of claim 1, wherein: the two-end inner walls of the conical inner hole (21) are respectively provided with a first sealing groove (211) and a second sealing groove (212), the first sealing groove (211) and the second sealing groove (212) are respectively used for installing an O-shaped sealing ring, and the oil duct (7) is positioned between the first sealing groove (211) and the second sealing groove (212).
3. A propeller keyless hydraulic mounting structure according to claim 1 or 2, characterized in that: the oil duct (7) comprises a longitudinal oil duct (71) and a plurality of annular oil ducts (72), wherein the annular oil ducts (72) and the longitudinal oil ducts (71) are respectively arranged along the radial direction and the axial direction of the conical inner hole (21), and two adjacent annular oil ducts (72) are communicated through the longitudinal oil duct (71).
4. A propeller keyless hydraulic mounting structure according to claim 3, characterized in that: the propeller hub body (2) is internally provided with an oil way (22), one end of the oil way (22) is communicated with an oil outlet of a second pump (5) through a second connector (23), and the other end of the oil way (22) is arranged at a position between two adjacent annular oil channels (72) on the inner wall of the conical inner hole (21).
5. A propeller keyless hydraulic mounting structure according to claim 1 or 2, characterized in that: the first pump (4) and the second pump (5) are respectively provided with a first pressure gauge (41) and a second pressure gauge (42).
6. A propeller keyless hydraulic mounting structure according to claim 1 or 2, characterized in that: the propeller hub body (2) is provided with a displacement detection mechanism (8) on the end face of one end, which is close to the large-diameter end of the conical inner hole (21), the displacement detection mechanism (8) is used for detecting the moving distance of the propeller hub body (2) from the end A (11) to the end B (12) of the propeller shaft (1), and the displacement detection mechanism (8) is a dial indicator.
7. A propeller keyless hydraulic mounting structure according to claim 1 or 2, characterized in that: the end face of the end A (11) is fixed with the middle part of the hydraulic nut (3) through two long bolts (111).
8. A propeller keyless hydraulic mounting structure according to claim 1 or 2, characterized in that: the hydraulic mechanism (6) further comprises a first connector (62), and two ends of the first connector (62) are respectively communicated with the inside of the groove (31) and the oil outlet of the first pump (4).
9. A propeller keyless hydraulic mounting structure according to claim 1 or 2, characterized in that: the keyless hydraulic installation structure further comprises a protective sleeve (9), the protective sleeve (9) is sleeved outside the B end (12) of the propeller shaft (1), and one end of the protective sleeve (9) is fixed with one end face, close to the large-diameter end of the conical inner hole (21), of the propeller hub body (2) through a bolt.
10. The propeller keyless hydraulic mounting structure of claim 9, wherein: a first sealing ring (91) is arranged between the inner wall of the protective sleeve (9) and the outer wall of the B end (12) of the propeller shaft (1), and a second sealing ring (611) is arranged between the middle side wall of the top block (61) and the middle inner wall of the groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321915093.1U CN220330507U (en) | 2023-07-20 | 2023-07-20 | Propeller keyless hydraulic installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321915093.1U CN220330507U (en) | 2023-07-20 | 2023-07-20 | Propeller keyless hydraulic installation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220330507U true CN220330507U (en) | 2024-01-12 |
Family
ID=89457616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321915093.1U Active CN220330507U (en) | 2023-07-20 | 2023-07-20 | Propeller keyless hydraulic installation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220330507U (en) |
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2023
- 2023-07-20 CN CN202321915093.1U patent/CN220330507U/en active Active
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