CN210908852U - Press mounting device for coupler - Google Patents
Press mounting device for coupler Download PDFInfo
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- CN210908852U CN210908852U CN201921190625.3U CN201921190625U CN210908852U CN 210908852 U CN210908852 U CN 210908852U CN 201921190625 U CN201921190625 U CN 201921190625U CN 210908852 U CN210908852 U CN 210908852U
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Abstract
The utility model provides a shaft coupling pressure equipment device, the device includes: a thrust follower member, one end of which abuts against an end face of the coupling; one end of the pushing rod component is fixed on the power transmission shaft, and the other end of the pushing rod component is fixed at the other end of the pushing force output device component; and the output end of the expander is directly communicated with the central hole of the power transmission shaft and is fixed with the power transmission shaft, and the expander is used for injecting hydraulic oil into the central hole of the power transmission shaft so that the hydraulic oil flows into a space between the power transmission shaft and the coupler through the central hole, and the expansion of the distance between the outer wall of the power transmission shaft and the inner wall of the coupler is realized. Therefore, the press fitting operation of the traction motor or the gear box with a smaller central hole of the power transmission shaft and the coupler can be realized, and the quality and safety risks caused by the fact that the threaded rod is broken due to small diameter and insufficient strength are avoided.
Description
Technical Field
The utility model relates to a rail transit vehicle drive arrangement equipment field, in particular to shaft coupling pressure equipment device.
Background
The rail transit coupling is used as a mechanical transmission connecting part between the traction motor and the gear box and is used for transmitting the torque of the traction motor to the gear box. The coupling consists of two half couplings, and the two half couplings are respectively connected with the traction motor and the gear box, and the common mode is shaft hole taper interference connection. In addition, the assembly mode of shaft coupling and traction motor or shaft coupling and gear box is generally the oiling pressure equipment, promptly: and expanding the inner hole of the coupler by using one hydraulic expansion pump, and pushing the coupler onto a small shaft of the traction motor or a small shaft of the gear box by using another hydraulic thrust pump until the small shaft is matched with the coupler in place, thereby completing the press fitting process of the coupler.
In addition, a half coupling press-fitting tool is used in the press-fitting process of the coupling. Fig. 1 is a schematic working diagram of a press-fitting tool for a half coupling, specifically, according to fig. 1, the tool comprises a hollow screw 402, a lock nut 404, a press-fitting base plate 401 and a hydraulic pusher 403; the half-coupling 1 is sleeved on a small shaft 2 of a traction motor or a small shaft 2 of a gear box, a hollow screw 402 is screwed into a central threaded hole of the small shaft 2 of the traction motor or the small shaft 2 of the gear box, then a press-fitting base plate 401 is sleeved, a hydraulic pusher 403 is sleeved on the hollow screw 402 through the central hole, and the whole tool system is locked by a locking nut 404. And connecting the hydraulic thrust pump and the hydraulic expansion pump. And then, pressurizing the hydraulic thrust pump to a certain pressure, simultaneously pressurizing the hydraulic expansion pump to a certain pressure, slightly reducing the pressure of the hydraulic thrust pump, increasing the pressure of the hydraulic thrust pump, simultaneously increasing the pressure of the hydraulic expansion pump, and repeatedly increasing the pressures of the hydraulic thrust expansion pump and the hydraulic expansion pump in such a way, wherein the whole operation process is continuous and uniform until the coupler is pressed in place.
However, there are various central threaded holes (hollow screws for connecting tools) on the small shaft of the motor or the small shaft of the gear box, such as: two sizes are included: m16 or M20, and the hollow screw rod in operation bears the pulling force of hydraulic thrust pump, bears the radial extension force of hydraulic expansion pump again, so it is higher to its intensity requirement. The press fitting tool with the structure is used for a motor or a gear box with a G1/4 thread hole in the center of a small shaft, and the strength of the hollow screw cannot meet the requirement. Because the pressure of the hydraulic expansion pump can reach about 200MPa and the pressure of the hydraulic thrust pump can reach about 40MPa in the whole press fitting process of the half coupling, for the motor and the gear box with the G1/4 threaded hole in the center of the small shaft, the hollow screw 402 can not bear the acting force applied by the hydraulic expansion pump and the hydraulic thrust pump in the press fitting process due to the small diameter, the fracture condition can occur, and the safety risk in the operation process is increased.
Therefore, the middle control screw rod with the smaller diameter in the half-coupling press-fitting tool in the prior art is easy to break, and the safety risk in the operation process is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a shaft coupling pressure equipment device, it has overcome above technical problem.
In order to achieve the above object, a first aspect of the present application provides a coupling press-fitting device for press-fitting a coupling into a power transmission shaft, the device comprising: one end of the thrust follower component is abutted against the end surface of the coupler and is used for outputting a driving force facing the coupler; a push rod member having one end fixed to the power transmission shaft and the other end fixed to the other end of the push force follower member; the expander, the output with power transmission shaft's centre bore directly communicate and with power transmission shaft is fixed, be used for to power transmission shaft's centre bore injection hydraulic oil, so that hydraulic oil passes through the centre bore flows in to power transmission shaft with between the shaft coupling, the realization is right power transmission shaft's outer wall with distance between the inner wall of shaft coupling expands.
Optionally, the thrust follower component comprises: one end of the propelling cylinder is abutted against the end face of the coupler; the power output end of the pusher is abutted against the other end of the pushing cylinder; the limiting hole is formed in the thrust follower part, and the radial surface of the limiting hole is perpendicular to the pushing force output by the pusher.
Optionally, the pusher comprises: a hydraulic jack; and the hydraulic jack is communicated with a hydraulic oil supply device.
Optionally, the push rod assembly includes: the locking cylinder is sleeved in the propelling cylinder, one end of the locking cylinder is fixed on the power transmission shaft, and the length direction of the locking cylinder is parallel to the moving direction of the propelling cylinder; the locking threaded hole is formed in the other end of the locking barrel, and the radial surface of the locking threaded hole is perpendicular to the moving direction of the pushing barrel; one end of the threaded rod sequentially penetrates through the pusher and the limiting hole and then is in threaded connection with the locking threaded hole, and the other end of the threaded rod is fixed on the pusher.
Optionally, the threaded rod and the pusher form a threaded connection, and/or the other end of the threaded rod is fixed to the pusher through a nut.
Optionally, the method further includes: the fixing threaded holes are uniformly distributed on the radial surface of the locking cylinder along the circumferential direction of the locking cylinder and penetrate through the locking cylinder along the length direction of the locking cylinder; the number of the locking screw rods corresponds to that of the fixing threaded holes one by one; and the locking screw rod penetrates through the fixing threaded hole and then forms threaded connection with a threaded fixing hole formed in the power transmission shaft so as to fix the locking cylinder with the power transmission shaft.
Optionally, the dilator comprises: and one end of the hydraulic oil guide pipe is connected to the hydraulic oil supply device, and the other end of the hydraulic oil guide pipe is directly communicated with the central hole of the power transmission shaft and is fixed with the power transmission shaft and used for injecting hydraulic oil into the central hole of the power transmission shaft.
Optionally, the method further includes: and the catheter arrangement holes are respectively formed in the pushing cylinder and the locking cylinder, are positioned on the pushing cylinder and partially and/or completely coincide with the catheter arrangement holes on the locking cylinder, and are used for the catheter to pass through so as to be communicated with the central hole of the power transmission shaft and be fixed with the power transmission shaft.
Optionally, a gap exists between the outer circumferential surface of the locking cylinder and the inner wall of the pushing cylinder.
Through the utility model discloses a shaft coupling pressure equipment device can realize the less traction motor of power transmission shaft's centre bore or the pressure equipment operation of gear box and shaft coupling, thereby has avoided quality, the safety risk of being broken and bringing because of threaded rod diameter is little, intensity is not enough. The assembling method of the coupler of the driving device of the rail transit vehicle is perfected, the assembling quality of the coupler of the driving device of the rail transit vehicle is enhanced, and certain help is brought to the development of the rail transit vehicle.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic working diagram of a press-fitting tool for a half coupling;
fig. 2 is a schematic working diagram of the coupling press-fitting device of the present invention;
FIG. 3 is a schematic structural view of a propulsion cylinder according to the present invention;
FIG. 4 is a schematic structural view of a lock cylinder of the present invention;
fig. 5 is a schematic structural view of a power transmission shaft according to the present invention.
Wherein, 1, a half coupling; 2. a small shaft; 401. pressing a base plate; 402. a hollow screw; 403. hydraulic jack, 404, lock nut; 10. a thrust follower component; 11. a pusher; 12. a pusher barrel; 121. a limiting hole; 13. a coupling; 14. a power transmission shaft; 141. a threaded fixing hole; 142. a central bore; 20. a push lever member; 21. a threaded rod; 22. a locking cylinder; 23. a large lock nut; 24. locking the threaded hole; 3. a hydraulic jack; 31. a hydraulic oil conduit; 32. a pipe joint; 41. a small lock nut; 42. locking the screw rod; 43. fixing the threaded hole; 51. the conduit is provided with a hole.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to facilitate understanding of the embodiments of the present invention, the structure of the present invention is explained in detail by several specific embodiments.
As shown in fig. 2-5, the present embodiment provides a coupling press-fitting device for press-fitting a coupling 13 into a power transmission shaft 14, and the power transmission shaft 14 includes, but is not limited to: a small shaft of a traction motor or a small shaft of a gear box, wherein the device comprises: a thrust follower member 10 having one end abutting against an end surface of the coupling 13 and configured to output a thrust toward the coupling 13; a push rod part 20 having one end fixed to the power transmission shaft 14 and the other end fixed to the other end of the push force follower part 10; the expander, the output with power transmission shaft 14's centre bore 142 directly communicates and with power transmission shaft 14 is fixed, be used for to power transmission shaft 14's centre bore 142 pours into hydraulic oil into, so that hydraulic oil passes through centre bore 142 flows into power transmission shaft 14 with between the shaft coupling 13, the realization is right power transmission shaft 14's outer wall with the distance between the inner wall of shaft coupling 13 expands.
Specifically, the device includes: the push rod expander comprises a push follower component 10, a push rod component 20 and an expander, wherein one end of the push follower component 10 is abutted against the end face of the coupler 13 so as to output a pushing force towards the coupler 13; one end of a push rod part 20 is fixed on the power transmission shaft 14, and the other end of the push rod part 20 is fixed on the other end of the push force follower part 10; as for the expander, an output end of the expander is directly communicated with the central hole 142 of the power transmission shaft 14 and is fixed to the power transmission shaft 14, and the expander is used for injecting hydraulic oil into the central hole 142 of the power transmission shaft 14 so that the hydraulic oil flows into a space between the power transmission shaft 14 and the coupler 13 through the central hole 142, thereby expanding a distance between an outer wall of the power transmission shaft 14 and an inner wall of the coupler 13.
Therefore, the acting force of the thrust follower part 10 and the acting force of the expander can be separated, so that the situation that the push rod part 20 is broken due to small diameter and insufficient strength in the press fitting process of the coupler 13 is avoided, and quality and safety risks caused by breakage are overcome.
In another embodiment, as shown in fig. 2 and 3, the thrust follower member 10 comprises: a pusher barrel 12, and a pusher 11. Wherein, one end of the propelling cylinder 12 is abutted against the end surface of the coupling 13; the limit hole 121 is formed in the thrust follower part 10, and a radial surface of the limit hole 121 is perpendicular to the pushing force output by the pusher 11; and the power output end of the pusher 11 abuts the other end of the pusher barrel 11. Wherein, the propelling cylinder 12 can be arranged in a cylinder shape.
In another embodiment, the pusher 11 includes, but is not limited to: a hydraulic jack 3; the hydraulic jack 3 is connected with a hydraulic oil supply device. Also, the hydraulic oil supply device includes, but is not limited to: a hydraulic thrust pump. The hydraulic inference pump is fixed with the hydraulic jack 3 through a hydraulic oil conduit 31, and the hydraulic oil conduit 31 is fixed with a hydraulic oil inlet of the hydraulic jack 3 through a pipe joint 32.
In another embodiment, as shown in fig. 2, 4 and 5, the push rod assembly 20 includes: a locking cylinder 22, a locking threaded hole 24 and a threaded rod 21. The locking cylinder 22 is sleeved in the propelling cylinder 12, one end of the locking cylinder 22 is fixed to the power transmission shaft 14, and the length direction of the locking cylinder 22 is parallel to the moving direction of the propelling cylinder 12; the locking threaded hole 24 is arranged at the other end of the locking cylinder 22, and the radial surface of the locking threaded hole 24 is perpendicular to the moving direction of the pushing cylinder 12; one end of the threaded rod 21 penetrates through the pusher 11 and the limiting hole 121 in sequence and then is in threaded connection with the locking threaded hole 24, and the other end of the threaded rod is fixed on the pusher 11. Wherein, the locking cylinder 22 can be arranged in a cylinder shape.
Therefore, the acting force of the thrust follower part 10 and the acting force of the expander can be separated, so that the situation that the threaded rod 21 is broken due to small diameter and insufficient strength in the press fitting process of the coupler 13 is avoided, and quality and safety risks caused by breakage are overcome.
In another embodiment, the threaded rod 21 is screwed to the pusher 11, and/or the other end of the threaded rod 21 is fixed to the pusher 11 by a nut.
In another embodiment, as shown in fig. 2, 4 and 5, the apparatus further comprises: at least two fixing threaded holes 43 uniformly distributed on the radial surface of the locking cylinder 22 along the circumferential direction of the locking cylinder 22 and penetrating through the locking cylinder 22 along the length direction of the locking cylinder 22; preferably, three fixing threaded holes 43 are formed on the radial surface of the locking cylinder 22; the number of the locking screws 42 corresponds to the number of the fixing threaded holes 43 one by one;
wherein, the power transmission shaft 14 is provided with threaded fixing holes 141, and the number and positions of the threaded fixing holes 141 correspond to the fixing threaded holes 43 one by one; the locking screw 42 passes through the fixing threaded hole 43 and then is in threaded connection with the threaded fixing hole 141, so as to fix the locking cylinder 22 and the power transmission shaft 14.
In another embodiment, the dilator comprises: one end of the hydraulic oil conduit 31 is connected to a hydraulic oil supply device, and the other end is directly communicated with the central hole 142 of the power transmission shaft 14 and fixed to the power transmission shaft 14, and is used for injecting hydraulic oil into the central hole 142 of the power transmission shaft 14. Specifically, the hydraulic oil conduit 31 is directly communicated with the central hole 142 of the power transmission shaft 14 through the pipe joint 32 and is fixed with the power transmission shaft 14.
Wherein, the hydraulic oil supply device may also include but is not limited to: a hydraulic expansion pump.
In another embodiment, further comprising: and the catheter arrangement holes 51 are respectively formed in the pushing cylinder 12 and the locking cylinder 22, and the catheter arrangement holes 51 in the pushing cylinder 12 and the catheter arrangement holes 51 in the locking cylinder 22 are partially overlapped and/or completely overlapped, so that the catheters can pass through the catheter arrangement holes, are communicated with the central hole 142 of the power transmission shaft 14 and are fixed with the power transmission shaft 14.
In another embodiment, a gap exists between the outer peripheral surface of the locking barrel 22 and the inner wall of the pusher barrel 12.
Specifically, the specific structure of the present embodiment will be described in detail by taking the pusher 11 as the hydraulic jack 3 as an example.
In this embodiment, the threaded rod 21 is subjected to only the pulling force applied by the hydraulic thrust pump and the hydraulic jack 33, and the threaded rod 21 is solid.
The hydraulic expansion pump is directly connected to the central hole 142 of the power transmission shaft 14 and fixed to the power transmission shaft 14 through a hydraulic oil conduit 31 (including but not limited to a hose) and a pipe joint 32 (e.g., G1/4 pipe joint 32). Such as: the hydraulic oil conduit 31 communicates with the center hole 142 of the power transmission shaft 14 through the pipe joint 32 and constitutes a screw connection.
The lock cylinder 22 is mounted to the end face of the power transmission shaft 14 by three lock screws 42 and 6 small lock nuts 41. The locking cylinder 22 is hollow, and a groove (provided with a conduit installation hole 51) is formed in the side surface so as to facilitate the hydraulic oil conduit 31 and the pipe joint 32 (which can be a threaded joint) to extend into the groove to form threaded connection with the central hole 142 of the power transmission shaft 14; furthermore, one end face of the locking cylinder 22 is closely attached to the end face of the power transmission shaft 14, and the other end face is provided with a locking threaded hole 24 (such as an M20 threaded hole). The hydraulic jack 3 is sleeved on the threaded rod 21, the threaded rod 21 and the locking threaded hole 24 on the locking cylinder 22 form threaded connection, and the locking is realized through a large locking nut 23(M20 locking nut).
The propelling barrel 12 is hollow, and a groove (provided with a conduit installation hole 51) is formed in the side surface so as to facilitate the hydraulic oil conduit 31 and the pipe joint 32 (which can be a threaded joint) to extend into the groove to form threaded connection with the central hole 142 of the power transmission shaft 14; the pushing cylinder 12 is sleeved on the threaded rod 21 and the locking cylinder 22, one end surface of the pushing cylinder 12 is abutted against the hydraulic jack 3, and the other end surface is contacted with the end surface of the coupler 13; the inner diameter surface of the propelling cylinder 12 and the outer diameter surface of the locking cylinder 22 are provided with a certain distance of clearance, such as: a gap of 3-5 mm.
When the hydraulic expansion pump and the hydraulic thrust pump apply pressure, the inner hole of the coupler 13 is expanded, the piston of the hydraulic jack 3 extends out, the pushing cylinder 12 is pushed to move forwards, and the pushing cylinder 12 can push the half coupler 13 to move forwards until the half coupler 13 is pressed in place.
Of course, in this embodiment, the installation process of the coupling press-fitting device is as follows:
1. the coupling 13 is fitted on the power transmission shaft 14, and the hydraulic oil conduit 31 of the hydraulic expansion pump is communicated with the central hole 142 of the power transmission shaft 14 by using the pipe joint 32 and fixed with the power transmission shaft 14.
2. The three locking screws 42 are screwed into the fixing threaded holes 43 on the end surface of the power transmission shaft 14, then the locking cylinder 22 is sleeved on the three locking screws 42, and the small locking nut 41 is screwed so that the locking cylinder 22 is tightly attached to the power transmission shaft 14.
3. The push cylinder 12 is fitted onto the lock cylinder 22.
4. The threaded rod 21 is threaded into the locking threaded hole 24 on the locking barrel 22 after passing through the limiting hole 121 of the pushing barrel 12.
5. The center hole 142 of the hydraulic jack 3 is inserted through the threaded rod 21, and the end face of the jack is brought into close contact with the thrust cylinder 12. The large lock nut 23 is then tightened.
6. When the hydraulic expansion pump and the hydraulic thrust pump apply pressure, the inner hole of the coupler 13 is expanded, the piston of the hydraulic jack 3 extends out, the pushing cylinder 12 is pushed to move forwards, and the pushing cylinder 12 pushes the half coupler 13 to move forwards until the half coupler 13 is pressed in place.
In addition, when the thread size of the central hole 142 of the power transmission shaft 14 is smaller than that of the traction motor or the gear box M16, and three threaded holes not smaller than M8 are uniformly distributed on the circumference of the traction motor or the gear box, the coupler press-fitting device and the installation process can be used for press-fitting the coupler 13, and the sizes of partial components of the device can be slightly changed if necessary.
The utility model discloses an application can realize the less traction motor of centre bore 142 of power transmission shaft 14 or the pressure equipment operation with shaft coupling 13 of gear box, thereby avoided quality, the safety risk that is brought because of threaded rod 21 diameter is little, intensity is not enough to be broken. The assembling method of the driving device coupler 13 of the rail transit vehicle is perfected, the assembling quality of the driving device coupler 13 of the rail transit vehicle is enhanced, and certain help is brought to the development of the rail transit vehicle.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A coupling press-fitting device, comprising:
a thrust follower member (10) having one end abutting against the end surface of the coupling (13) and configured to output a thrust toward the coupling (13);
a push rod member (20) having one end fixed to the power transmission shaft (14) and the other end fixed to the other end of the thrust follower member (10);
the expander, the output with centre bore (142) direct intercommunication of power transmission shaft (14) and with power transmission shaft (14) are fixed, be used for to the centre bore (142) of power transmission shaft (14) pour into hydraulic oil into, so that hydraulic oil passes through centre bore (142) flow into to power transmission shaft (14) with between shaft coupling (13), the realization is right the outer wall of power transmission shaft (14) with the distance between the inner wall of shaft coupling (13) expands.
2. A coupling press-fitting device according to claim 1, characterised in that said thrust follower member (10) comprises:
a pushing cylinder (12) with one end abutting against the end surface of the coupling (13);
the power output end of the pusher (11) is abutted against the other end of the pushing cylinder (12);
and the limiting hole (121) is formed in the thrust follower part (10), and the radial surface of the limiting hole (121) is perpendicular to the pushing force output by the pusher (11).
3. A coupling press-fitting device according to claim 2, characterised in that said pusher (11) comprises: a hydraulic jack (3);
and the hydraulic jack (3) is communicated with a hydraulic oil supply device.
4. The coupling press-fitting device according to claim 2, wherein said push rod member (20) includes:
the locking cylinder (22) is sleeved in the propelling cylinder (12), one end of the locking cylinder (22) is fixed on the power transmission shaft (14), and the length direction of the locking cylinder (22) is parallel to the moving direction of the propelling cylinder (12);
the locking threaded hole (24) is formed in the other end of the locking barrel (22), and the radial surface of the locking threaded hole (24) is perpendicular to the moving direction of the pushing barrel (12);
one end of the threaded rod (21) sequentially penetrates through the pusher (11) and the limiting hole (121) and then is in threaded connection with the locking threaded hole (24), and the other end of the threaded rod is fixed on the pusher (11).
5. A shaft coupling press-fitting device according to claim 4, characterised in that the threaded rod (21) is in threaded connection with the pusher (11) and/or that the other end of the threaded rod (21) is fixed to the pusher (11) by means of a nut.
6. The coupling press-fitting device according to claim 4, further comprising:
the fixing threaded holes (43) are uniformly distributed on the radial surface of the locking cylinder (22) along the circumferential direction of the locking cylinder (22) and penetrate through the locking cylinder (22) along the length direction of the locking cylinder (22);
the number of the locking screw rods (42) corresponds to that of the fixing threaded holes (43) one by one;
the locking screw rod (42) penetrates through the fixing threaded hole (43) and then forms threaded connection with a threaded fixing hole (141) formed in the power transmission shaft (14), so that the locking cylinder (22) is fixed with the power transmission shaft (14).
7. The coupling press-fitting device according to claim 4, wherein said expander comprises:
and one end of the hydraulic oil guide pipe (31) is connected to a hydraulic oil supply device, and the other end of the hydraulic oil guide pipe is directly communicated with the central hole (142) of the power transmission shaft (14), is fixed with the power transmission shaft (14) and is used for injecting hydraulic oil into the central hole (142) of the power transmission shaft (14).
8. A coupling press-fitting device according to claim 7, further comprising:
the pipe arrangement holes (51) are respectively formed in the pushing cylinder (12) and the locking cylinder (22), are located in partial coincidence and/or complete coincidence of the pipe arrangement holes (51) in the pushing cylinder (12) and the pipe arrangement holes (51) in the locking cylinder (22), and are used for allowing the hydraulic oil pipes (31) to penetrate through so as to be communicated with the center hole (142) of the power transmission shaft (14) and be fixed with the power transmission shaft (14).
9. A coupling press-fitting device according to claim 4, characterized in that a gap is present between the outer peripheral surface of said locking cylinder (22) and the inner wall of said pushing cylinder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921190625.3U CN210908852U (en) | 2019-07-26 | 2019-07-26 | Press mounting device for coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921190625.3U CN210908852U (en) | 2019-07-26 | 2019-07-26 | Press mounting device for coupler |
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| Publication Number | Publication Date |
|---|---|
| CN210908852U true CN210908852U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921190625.3U Active CN210908852U (en) | 2019-07-26 | 2019-07-26 | Press mounting device for coupler |
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| CN (1) | CN210908852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193367A (en) * | 2021-10-22 | 2022-03-18 | 扬州恒德工业科技有限公司 | Assembling die |
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2019
- 2019-07-26 CN CN201921190625.3U patent/CN210908852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193367A (en) * | 2021-10-22 | 2022-03-18 | 扬州恒德工业科技有限公司 | Assembling die |
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