CN216342878U - Double-part hydraulic dismounting structure on main shaft - Google Patents
Double-part hydraulic dismounting structure on main shaft Download PDFInfo
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- CN216342878U CN216342878U CN202122052993.5U CN202122052993U CN216342878U CN 216342878 U CN216342878 U CN 216342878U CN 202122052993 U CN202122052993 U CN 202122052993U CN 216342878 U CN216342878 U CN 216342878U
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Abstract
The utility model discloses a double-part hydraulic dismounting structure on a main shaft, relates to the technical field of compressors, and mainly aims to ensure the hydraulic assembling quality of a coupler and a thrust disc. The structure includes: the spindle comprises a spindle head, a first oil filling hole, a second oil filling hole, a first oil filling hole and a second oil filling hole, wherein the first oil filling hole extends along the axial direction of the spindle head and penetrates through the end face of the spindle head; the first oil filling pin is internally provided with a second oil filling hole which extends along the axial direction of the first oil filling pin and penetrates through the end surface of the first oil filling pin, the outer wall of the first oil filling pin is sleeved with a first sealing ring, and the outer wall of the first oil filling pin is provided with a first external thread; the second oiling pin is internally provided with a third oiling hole which extends along the axial direction of the second oiling pin and penetrates through the end surface of the second oiling pin and a fourth oiling hole which is communicated with the third oiling hole and penetrates through the second oiling pin and the two sides of the second oiling pin, a second sealing ring is sleeved on the outer wall of the second oiling pin, and second external threads are arranged on the outer wall of the second oiling pin. The hydraulic assembling device is mainly used for hydraulic assembling of parts.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a double-part hydraulic dismounting structure on a main shaft.
Background
The centrifugal compressor is the core equipment of key devices in multiple fields of petrochemical industry, metallurgy, natural gas transportation, power and the like, the operation condition of the centrifugal compressor is directly related to the production benefits of the whole device and the whole industry, and the centrifugal compressor plays an important role in national economic development.
The traditional compressor rotor thrust disc and the main shaft adopt key connection and hot disassembly and assembly modes, but as the compressor medium is usually toxic, harmful, inflammable and explosive, explosion-proof occasions are arranged around the compressor factory building, so that the hot disassembly and assembly mode cannot be adopted in the compressor factory building, and therefore, the hydraulic assembly mode needs to be adopted for the thrust disc. When the large-scale compressor unit is in multi-cylinder linkage, the middle part of the compressor adopts double-output shaft heads, and the coupler and the thrust disc are required to be assembled and disassembled in a hydraulic mode. However, because the assembly requirements of the thrust disc and the coupling are different, if the coupling and the thrust disc are hydraulically disassembled and assembled on the same side of the main shaft, mutual interference is inevitably caused, and the assembly of the coupling and the thrust disc is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a two-part hydraulic dismounting structure on a main shaft, and mainly aims to avoid mutual interference when a coupler and a thrust disc are dismounted hydraulically on the same side of the main shaft, so as to ensure the hydraulic assembly quality of the coupler and the thrust disc.
In order to achieve the purpose, the utility model mainly provides the following technical scheme:
the embodiment of the utility model provides a double-part hydraulic dismounting structure on a main shaft, which comprises:
the spindle comprises a spindle head, wherein a first oil filling hole which extends along the axial direction of the spindle head and penetrates through the end face of the spindle head is arranged in the spindle head of the spindle, internal threads are arranged on the inner wall of the first oil filling hole, and a first through hole and a second through hole which penetrate through two sides of the spindle head and are communicated with the first oil filling hole are respectively arranged at two ends of the spindle head of the spindle;
the first oil filling pin is internally provided with a second oil filling hole which extends along the axial direction of the first oil filling pin and penetrates through the end surface of the first oil filling pin, the outer wall of the first oil filling pin is sleeved with a first sealing ring, the outer wall of the first oil filling pin is provided with a first external thread matched with the internal thread, and the first oil filling pin is used for being inserted into the first oil filling hole and in threaded connection with the first oil filling hole, so that the second oil filling hole is communicated with a part only through the first through hole; and
the second oiling pin is provided with a third oiling hole which extends along the axial direction of the second oiling pin and penetrates through the end face of the third oiling pin, and a fourth oiling hole which is communicated with the third oiling hole and penetrates through the end face of the third oiling pin and two sides of the second oiling pin, a second sealing ring is sleeved on the outer wall of the second oiling pin, second external threads matched with the internal threads are arranged on the outer wall of the second oiling pin, the second oiling pin is used for being inserted into the first oiling hole and is in threaded connection with the first oiling hole, and therefore the third oiling pin only passes through the fourth oiling hole and the second through hole is communicated with another part.
Furthermore, the number of the first sealing rings is two, and the two first sealing rings are sleeved on the outer wall of the first oil injection pin at intervals;
the number of the second sealing rings is two, and the two second sealing rings are sleeved on the outer wall of the first oil filling pin at intervals.
Further, the first oil injection pin is used for being in clearance fit with the first oil injection hole and has a first preset fit tolerance;
the second oil injection pin is used for being in clearance fit with the first oil injection hole and has a second preset fit tolerance;
the first preset fit tolerance is equal to the second preset fit tolerance and both are
And D is the inner diameter of the first oil filling hole and the outer diameters of the first oil filling pin and the second oil filling pin.
Further, the internal thread, the first external thread and the second external thread are all tapered threads.
Further, the outer wall of the second oil injection pin is provided with an oil passing groove arranged around the periphery of the second oil injection pin, and the oil passing groove is communicated with two ends of the fourth oil injection hole.
Further, the opposite side wall surfaces of the oil passing groove are inclined surfaces which are obliquely arranged towards two sides deviated from each other respectively.
Further, the first oil injection pin and the second oil injection pin are provided with mounting ends, and the cross-sectional shapes of the mounting ends are hexagons.
Further, the first oil filling hole comprises a first hole section and a second hole section which are connected, the inner diameter of the first hole section is larger than that of the second hole section, an annular step surface is formed at the joint of the first hole section and the second hole section, and the annular step surface is a circular truncated cone surface;
the end parts of the first oil injection pin and the second oil injection pin are respectively provided with a circular truncated cone-shaped surface matched with the contour shape of the annular step surface;
when the first oil injection pin and the second oil injection pin are inserted into the first oil injection hole, the circular truncated cone surfaces of the first oil injection pin and the second oil injection pin are in matched abutting joint with the annular step surface.
Furthermore, one end of the spindle head of the spindle is used for being connected with the thrust disc in an interference fit mode, and the other end of the spindle head of the spindle is used for being connected with the coupler in an interference fit mode.
By means of the technical scheme, the utility model at least has the following beneficial effects:
according to the double-part hydraulic dismounting structure provided by the embodiment of the utility model, when one part is mounted, the first oil filling pin can be inserted into the first oil filling hole of the spindle head and is in threaded connection, so that the second oil filling hole of the first oil filling pin is communicated with the first through hole of the spindle head, and the second oil filling hole is disconnected from the second through hole of the spindle head through the first sealing ring, so that hydraulic oil introduced into the second oil filling hole of the first oil filling pin can only flow into the part through the first through hole and cannot flow into the other part, the mounting of the part is realized, and the dismounting process of the part is opposite to the above process; when another part is installed, the second oil filling pin can be inserted into the first oil filling hole of the spindle head and is in threaded connection with the first oil filling hole, the third oil filling hole of the second oil filling pin is communicated with the second through hole of the spindle head through the fourth oil filling hole of the second oil filling pin, the third oil filling hole is disconnected with the first through hole of the spindle head through the first sealing ring, hydraulic oil which is introduced into the third oil filling hole of the second oil filling pin can only flow into the another part through the second through hole and cannot flow into the part, the installation of the another part is realized, the dismounting process of the another part is opposite to the dismounting process, the hydraulic dismounting of the two parts in the same side of the spindle head without mutual interference is realized, and the assembling quality of each part is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a two-part hydraulic dismounting structure on a spindle, which is connected with a thrust disc and a coupling according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a two-part hydraulic dismounting structure on the spindle of FIG. 1;
FIG. 3 is a schematic view of a first oil injection pin for insertion into the first oil injection hole of FIG. 2;
fig. 4 is a schematic structural view of a second oil filling pin inserted into the first oil filling hole in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the utility model. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present embodiment, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present embodiment.
As shown in fig. 1 to 4, an embodiment of the present invention provides a hydraulic dual-part dismounting structure on a main shaft, including a main shaft 1, a first oil filler hole 2 extending along an axial direction of the main shaft 1 and penetrating through an end surface of the main shaft, an internal thread 211 provided on an inner wall of the first oil filler hole 2, a first through hole 3 and a second through hole 4 penetrating through two sides of the main shaft 1 and both communicating with the first oil filler hole 2, respectively provided at two ends of the main shaft 1; the first oil filling pin 5 is internally provided with a second oil filling hole 51 which extends along the axial direction of the first oil filling pin and penetrates through the end face of the first oil filling pin, the outer wall of the first oil filling pin 5 is sleeved with a first sealing ring 52, the outer wall of the first oil filling pin 5 is provided with a first external thread 53 matched with the internal thread 211, the first oil filling pin 5 is used for being inserted into the first oil filling hole 2 and is in threaded connection with the first oil filling hole 2, and the second oil filling hole 51 is communicated with a part only through the first through hole 3; and the second oil injection pin 6 is internally provided with a third oil injection hole 61 which extends along the axial direction of the second oil injection pin 6 and penetrates through the end surface of the second oil injection pin, and a fourth oil injection hole 62 which is communicated with the third oil injection hole 61 and penetrates through the two sides of the second oil injection pin 6, the outer wall of the second oil injection pin 6 is sleeved with a second sealing ring 63, the outer wall of the second oil injection pin is provided with a second external thread 64 matched with the internal thread 211, the second oil injection pin 6 is used for being inserted into the first oil injection hole 2 and is in threaded connection with the first oil injection hole 2, and the third oil injection hole 61 is communicated with another part only through the fourth oil injection hole 62 and the second through hole 4.
Wherein, bipiece hydraulic pressure dismouting structure on this main shaft 1 can be used for thrust dish 20 and shaft coupling 30 that are connected with 1 interference fit of main shaft in the compressor unit to carry out the hydraulic pressure dismouting of mutual noninterference with one side at 1 spindle nose of main shaft, and first oiling round pin 5 can be used for the hydraulic pressure dismouting of thrust dish, and second oiling round pin 6 can be used for the hydraulic pressure dismouting of shaft coupling. Moreover, the first oil filling pin 5 and the second oil filling pin 6 are arranged to be in threaded connection with the first oil filling hole 2 of the spindle head of the main shaft 1 instead of interference fit, so that the first oil filling pin 5 and the second oil filling pin 6 can be conveniently detached from the spindle head of the main shaft 1 after use.
The working process of the double-part hydraulic dismounting structure can be as follows: when the thrust disc 20 and the coupler 30 are assembled, the first oil injection pin 5 can be inserted into the first oil injection hole 2 of the spindle head of the main shaft 1 and is in threaded connection with the first oil injection hole 2 through threads, at the moment, the second oil injection hole 51 of the first oil injection pin 5 can be communicated with the first through hole 3 of the spindle head, the second oil injection hole 51 is in sealed disconnection with the second through hole 4 of the spindle head through the first sealing ring 52, the high-pressure oil joint is connected with the first oil injection pin 5, and high-pressure oil flows into a hollow part of the inner wall surface of the thrust disc 20 along the second oil injection hole 51 through the second through hole 4, so that the hydraulic installation of the thrust disc 20 is realized; after the thrust disc 20 is installed, the first oil filling pin 5 is screwed to be separated from the shaft head, the second oil filling pin 6 is inserted and is in threaded connection with the first oil filling hole 2, at the moment, the third oil filling hole 61 of the second oil filling pin 6 is communicated with the second through hole 4 of the shaft head through the fourth oil filling hole 62, the third oil filling hole 61 is in sealed disconnection with the first through hole 3 of the shaft head through the second sealing ring 63, the high-pressure oil joint is connected with the second oil filling pin 6, and high-pressure oil flows into the shaft coupler 30 along the third oil filling hole 61 through the fourth oil filling hole 62 and the second through hole 4, so that hydraulic installation of the shaft coupler 30 is achieved. When the thrust disc and the coupling are disassembled, the operation process is opposite to the process described above, and the details are not described here.
According to the hydraulic dismounting structure for the double parts on the main shaft provided by the embodiment of the utility model, when one part is mounted, the first oil injection pin can be inserted into the first oil injection hole of the shaft head of the main shaft and is in threaded connection, so that the second oil injection hole of the first oil injection pin is communicated with the first through hole of the shaft head, and the second oil injection hole is disconnected from the second through hole of the shaft head through the first sealing ring, so that hydraulic oil introduced into the second oil injection hole of the first oil injection pin can only flow into the part through the first through hole and cannot flow into the other part, the mounting of the part is realized, and the dismounting process of the part is opposite to the process; when another part is installed, the second oil filling pin can be inserted into the first oil filling hole of the spindle head and is in threaded connection with the first oil filling hole, the third oil filling hole of the second oil filling pin is communicated with the second through hole 4 of the spindle head through the fourth oil filling hole, the third oil filling hole is disconnected with the first through hole of the spindle head through the first sealing ring, hydraulic oil introduced into the third oil filling hole of the second oil filling pin can only flow into the another part through the second through hole and cannot flow into the parts, the installation of the another part is realized, the dismounting process of the another part is opposite to the dismounting process, the hydraulic dismounting of the two parts in the same side of the spindle head without mutual interference is realized, and the assembling quality of each part is guaranteed.
In order to improve the sealing effect between the first oil injection pin 5 and the second oil injection pin 6 and the first oil injection hole 2 of the spindle head of the main shaft 1, in an alternative embodiment, referring to fig. 2, the number of the first sealing rings 52 can be two, and the two first sealing rings 52 are sleeved on the outer wall of the first oil injection pin 5 at intervals; the number of the second sealing rings 63 can also be two, and the two second sealing rings 63 are sleeved on the outer wall of the first oil injection pin 5 at intervals. Realize jointly sealed between corresponding oil filler pin and the first oil filler point 2 through two sealing washer, effectively improved sealed effect between the two, realized when 5 threaded connection of first oil filler pin are in first oil filler point 2, effectively blocked the route between second oil filler point 51 and second through-hole 4, when 6 threaded connection of second oil filler pin are in first oil filler point 2, effectively blocked the route between third oil filler point 61 and first through-hole 3, thereby produce mutual interference when further having avoided thrust dish and shaft coupling hydraulic assembly, and then further guaranteed the assembly quality of the two. Wherein, can set up two annular grooves at the outer wall of corresponding oiling round pin, two sealing washers set up respectively in annular groove.
In an alternative embodiment, the first filler pin 5 is adapted to be clearance fitted with the first filler hole 2 and has a first preset fitting tolerance; the second oil injection pin 6 is used for being in clearance fit with the first oil injection hole 2 and has a second preset fit tolerance; wherein the first predetermined fit tolerance may be equal to the second predetermined fit tolerance, and both are
Wherein D is the inner diameter of the first oil filler hole 2, the outer diameters of the first oil filler pin 5 and the second oil filler pin 6. Through setting up first oiling round pin 5 and second oiling round pin 6 to be clearance fit with first oiling hole 2, the dismantlement of corresponding oiling round pin of being convenient for, and set up corresponding cooperation tolerance of predetermineeing into the tolerance makes it can mutually support with the sealing washer, further guarantees the sealed effect between corresponding oiling round pin and first oiling hole 2 to block the route between second oiling hole 51 and second through-hole 4 more effectively, perhaps the route between third oiling hole 61 and the first through-hole 3, thereby produce mutual interference when further avoiding thrust disc and shaft coupling hydraulic assembly, and then further guaranteed the assembly quality of the two.
In an alternative embodiment, referring to fig. 2, 3 and 4, the internal threads 211 of the inner wall of the first oil filler hole 2, the first external threads 53 and the second external threads 64 of the outer walls of the first oil filler pin 5 and the second oil filler pin 6 may each be adapted tapered threads. Because the taper thread has good sealing effect, the first oil filling pin 5, the second oil filling pin 6 and the first oil filling hole 2 are in threaded connection through the taper thread, high-pressure oil is prevented from leaking outwards when the shaft coupling is disassembled and assembled, and the disassembling and assembling effects of the thrust disc and the shaft coupling are further guaranteed.
It should be noted that, because the inner wall of the opening side of the first oil filling hole 2 is provided with the taper thread for performing threaded connection with the first oil filling pin 5 and the second oil filling pin 6, in order to avoid the overlong length of the spindle head of the main shaft 1, the second through hole 4 may be obliquely arranged, that is, two sections of holes located on two sides of the first oil filling hole 2 are obliquely arranged respectively, so that it is ensured that high-pressure oil can flow into the coupler through the second through hole 4, and further the hydraulic disassembly and assembly of the coupler are ensured.
Because the second oil injection pin 6 is in threaded connection with the first oil injection hole 2 of the spindle head of the main spindle 1, after the second oil injection pin 6 is screwed and installed, it is not necessarily ensured that the fourth oil injection hole 62 of the second oil injection pin 6 is communicated with the second through hole 4 of the spindle head of the main spindle 1 correspondingly, so that high-pressure oil cannot flow into the coupler. Through setting up the annular oil groove 65 of crossing, and should cross oil groove 65 and fourth oil filler point 62 intercommunication, realized when revolving wrong second oiling pin 6, no matter which position it finally stops, the homoenergetic guarantees that oil groove 65 is linked together with the second through-hole 4 of main shaft 1 spindle nose to guarantee the intercommunication of fourth oil filler point 62 and second through-hole 4, and then guaranteed that high-pressure oil can flow into the shaft coupling, realize the dismouting of shaft coupling.
Specifically, in an alternative embodiment, referring to fig. 4, the opposite side wall surfaces of the oil passing groove 65 are inclined surfaces which are obliquely arranged towards the two sides which are away from each other, i.e. the interface shape of the oil passing groove 65 may be trapezoidal, and the width of the oil passing groove 65 may be larger than the inner diameter of the fourth oil filling hole 62, so as to be communicated with the second through hole 4 of the spindle head of the spindle 1.
In order to facilitate the mounting of the first and second oil pins 5, 6 to the first oil hole 2 in the head of the main shaft 1, in an alternative embodiment, see fig. 3 and 4, the first and second oil pins 5, 6 may each have a mounting end (54, 66) and the mounting end may each have a hexagonal cross-sectional shape, facilitating the mounting of the first and second oil pins 5, 6 with a corresponding mounting tool, such as a wrench.
In an alternative embodiment, referring to fig. 2, 3 and 4, the first oil filler hole 2 may include a first hole section 21 and a second hole section 22 connected, an inner diameter of the first hole section 21 may be larger than an inner diameter of the second hole section 22, an annular step surface 23 is formed at a connection of the first hole section 21 and the second hole section 22, and the annular step surface 23 is a circular truncated cone surface; the end parts of the first oil injection pin 5 and the second oil injection pin 6 are both provided with a circular truncated cone-shaped surface 231 matched with the contour shape of the annular step surface 23; the first oil injection pin 5 and the second oil injection pin 6 are inserted into the first oil injection hole 2, namely when the first hole section 21 is inserted, the circular truncated cone-shaped surfaces 231 of the first oil injection pin 5 and the second oil injection pin 6 are in matched butt joint with the annular stepped surface 23, so that the first oil injection pin 5 and the second oil injection pin 6 can be conveniently installed with the first oil injection hole 2 in the spindle head of the spindle 1.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a bi-parts hydraulic pressure dismouting structure on main shaft which characterized in that includes:
the spindle comprises a spindle head, wherein a first oil filling hole which extends along the axial direction of the spindle head and penetrates through the end face of the spindle head is arranged in the spindle head of the spindle, internal threads are arranged on the inner wall of the first oil filling hole, and a first through hole and a second through hole which penetrate through two sides of the spindle head and are communicated with the first oil filling hole are respectively arranged at two ends of the spindle head of the spindle;
the first oil filling pin is internally provided with a second oil filling hole which extends along the axial direction of the first oil filling pin and penetrates through the end surface of the first oil filling pin, the outer wall of the first oil filling pin is sleeved with a first sealing ring, the outer wall of the first oil filling pin is provided with a first external thread matched with the internal thread, and the first oil filling pin is used for being inserted into the first oil filling hole and in threaded connection with the first oil filling hole, so that the second oil filling hole is communicated with a part only through the first through hole; and
the second oiling pin is provided with a third oiling hole which extends along the axial direction of the second oiling pin and penetrates through the end face of the third oiling pin, and a fourth oiling hole which is communicated with the third oiling hole and penetrates through the end face of the third oiling pin and two sides of the second oiling pin, a second sealing ring is sleeved on the outer wall of the second oiling pin, second external threads matched with the internal threads are arranged on the outer wall of the second oiling pin, the second oiling pin is used for being inserted into the first oiling hole and is in threaded connection with the first oiling hole, and therefore the third oiling pin only passes through the fourth oiling hole and the second through hole is communicated with another part.
2. The hydraulic two-part disassembly and assembly structure of claim 1,
the number of the first sealing rings is two, and the two first sealing rings are sleeved on the outer wall of the first oil injection pin at intervals;
the number of the second sealing rings is two, and the two second sealing rings are sleeved on the outer wall of the first oil filling pin at intervals.
3. The hydraulic two-part disassembly and assembly structure of claim 1,
the first oil injection pin is used for being in clearance fit with the first oil injection hole and has a first preset fit tolerance;
the second oil injection pin is used for being in clearance fit with the first oil injection hole and has a second preset fit tolerance;
the first preset fit tolerance is equal to the second preset fit tolerance and both are
And D is the inner diameter of the first oil filling hole and the outer diameters of the first oil filling pin and the second oil filling pin.
4. The hydraulic two-part disassembly and assembly structure of claim 1,
the internal thread, the first external thread and the second external thread are all tapered threads.
5. The hydraulic two-part disassembly and assembly structure of claim 1,
and an oil passing groove arranged around the second oil injection pin in a circle is formed in the outer wall of the second oil injection pin, and the oil passing groove is communicated with the two ends of the fourth oil injection hole.
6. The hydraulic two-part disassembly and assembly structure of claim 5,
the opposite side wall surfaces of the oil passing grooves are inclined surfaces which are obliquely arranged towards two sides deviated from each other respectively.
7. The hydraulic two-part disassembly and assembly structure of claim 1,
the first oil injection pin and the second oil injection pin are both provided with mounting ends, and the cross sections of the mounting ends are hexagonal.
8. The hydraulic two-part disassembly and assembly structure of claim 1,
the first oil filling hole comprises a first hole section and a second hole section which are connected, the inner diameter of the first hole section is larger than that of the second hole section, an annular step surface is formed at the joint of the first hole section and the second hole section, and the annular step surface is a circular truncated cone surface;
the end parts of the first oil injection pin and the second oil injection pin are respectively provided with a circular truncated cone-shaped surface matched with the contour shape of the annular step surface;
when the first oil injection pin and the second oil injection pin are inserted into the first oil injection hole, the circular truncated cone surfaces of the first oil injection pin and the second oil injection pin are in matched abutting joint with the annular step surface.
9. The hydraulic two-part disassembly and assembly structure of claim 1,
one end of a shaft head of the main shaft is used for being connected with the thrust disc in an interference fit mode, and the other end of the shaft head of the main shaft is used for being connected with the coupler in an interference fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122052993.5U CN216342878U (en) | 2021-08-27 | 2021-08-27 | Double-part hydraulic dismounting structure on main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122052993.5U CN216342878U (en) | 2021-08-27 | 2021-08-27 | Double-part hydraulic dismounting structure on main shaft |
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| Publication Number | Publication Date |
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| CN216342878U true CN216342878U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122052993.5U Active CN216342878U (en) | 2021-08-27 | 2021-08-27 | Double-part hydraulic dismounting structure on main shaft |
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| CN (1) | CN216342878U (en) |
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2021
- 2021-08-27 CN CN202122052993.5U patent/CN216342878U/en active Active
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