CN210661327U - Piston rod end joint - Google Patents
Piston rod end joint Download PDFInfo
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- CN210661327U CN210661327U CN201921575706.5U CN201921575706U CN210661327U CN 210661327 U CN210661327 U CN 210661327U CN 201921575706 U CN201921575706 U CN 201921575706U CN 210661327 U CN210661327 U CN 210661327U
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Abstract
The utility model discloses a piston rod end connector, include the piston rod and fix the cylinder piston rod cover at the piston rod tip, the one end inner wall that the piston rod was kept away from to the cylinder piston rod cover leaves the cavity, and the cavity inner wall is equipped with the ball headstock, the top end outer wall joint of ball headstock has the fixed disk, and the joint has same dustproof knot between the inner wall of fixed disk and the inner wall edge of cylinder piston rod cover, the inner wall of ball headstock leaves the ball-type cavity, and the inner wall rotation of ball-type cavity is connected with the bulb that floats. The utility model discloses the piston rod links to each other with the unsteady joint right-hand member, because unsteady joint is the sphere and connects, so allow the double-screw bolt to wave along X, Y, Z three directions in the slip ring, allow to shake the angle within 5, the double-screw bolt can do the eccentric sliding of trace with the slip ring in the vertical direction that connects the axis, and the dust cover plays dustproof effect to inside lubricating grease of protection is suitable for higher pulling force and compressive force load.
Description
Technical Field
The utility model relates to a cylinder technical field especially relates to a piston rod end connector.
Background
The piston rod is a connecting component for supporting the piston to do work, most of the piston rod is applied to an oil cylinder and an air cylinder movement executing component, and the piston rod is a movement component with frequent movement and high technical requirements. Taking a hydraulic oil cylinder as an example, the hydraulic oil cylinder comprises: the cylinder barrel, the piston rod (oil cylinder rod), the piston and the end cover. The quality of the processing quality directly influences the service life and the reliability of the whole product. The piston rod has high processing requirement, the surface roughness requirement of the piston rod is Ra0.4-0.8um, and the requirements on coaxiality and wear resistance are strict. The oil cylinder rod is basically characterized in that a slender shaft is machined, and the machining difficulty is high, so that the oil cylinder rod always troubles machining personnel.
The existing piston rod end joint is rigidly connected, and the axial connecting ends with different connecting angles and connecting positions can cause long-term impact and vibration through a connecting flange or a shaft sleeve, and meanwhile, the joint cannot be adjusted, so that the load is large, and the bearing cannot be carried.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a piston rod end joint.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a piston rod end connector, includes the piston rod and fixes the cylinder piston rod cover at the piston rod tip, the one end inner wall that the piston rod was kept away from to cylinder piston rod cover leaves the cavity, and the cavity inner wall is equipped with the ball headstock, the top end outer wall joint of ball headstock has the fixed disk, and the joint has same dustproof knot between the inner wall of fixed disk and the inner wall edge of cylinder piston rod cover, the inner wall of ball headstock leaves the ball-type cavity, and the inner wall of ball-type cavity rotates and is connected with unsteady bulb, unsteady bulb is kept away from piston rod one end outer wall and has been cup jointed and connect the swivel nut, and the one end outer wall of connecting the swivel nut that is close to unsteady bulb has gland nut through threaded connection, the integrative welding in outer wall middle part of connecting the swivel nut has fixed reel, and fixed reel.
Preferably, the outer wall of one end, far away from the piston rod, of the floating ball head is provided with three to four screw petals which are distributed annularly at equal intervals, and the outer wall of each screw petal is in threaded engagement with the inner wall of the connecting screw sleeve through threads.
Preferably, the dustproof buckle is provided with an arc-shaped groove at one end close to the connecting screw clack of the floating ball head, and the inner wall of the arc-shaped groove is clamped with a spring ring.
Preferably, fastening components are arranged between the inner walls of the two sides of the dustproof buckle and the outer wall of the fixed disc and comprise adjusting studs and press plugs, and the adjusting studs are connected to the inner walls of the press plugs through threads.
Preferably, a heat dissipation annular cavity is reserved on the inner wall of the ball head frame, and lubricating grease is filled in the inner wall of the heat dissipation annular cavity.
Preferably, a sliding ring is arranged at the joint of the screw valve and the floating ball head, and the outer wall of the sliding ring is connected to the inner wall of the dustproof buckle in a sliding manner.
The utility model has the advantages that:
1. the piston rod of the piston rod end joint is connected with the right end of the floating joint, and the floating joint is in spherical connection, so that the stud is allowed to swing in the sliding ring along X, Y, Z three directions, the swinging angle is allowed to be within +/-5 degrees, and the stud and the sliding ring can perform micro eccentric sliding in the direction vertical to the axis of the joint. The dustproof cover plays a dustproof role to protect the internal lubricating grease;
2. the end joint of the piston rod is made of stainless steel and used for resisting corrosion, the floating joint does not require the load to be consistent with the axis of the cylinder, so the machining precision of the mounting part is not required to be high, the mounting time is greatly shortened, and the service life is long due to the fact that the dustproof cover is arranged. The spherical surface shaking angle is within +/-5 degrees, the allowable eccentricity is 0.5mm, and the method is suitable for higher tension and compression force loads.
Drawings
Fig. 1 is a schematic side view of a cross-sectional structure of a piston rod end joint according to the present invention;
fig. 2 is a schematic view of a floating ball head of a piston rod end joint according to the present invention.
In the figure: the device comprises a cylinder piston rod sleeve 1, a piston rod 2, a floating ball head 3, a ball head frame 4, a dustproof buckle 5, a press plug 6, a gland nut 7, a fixed shaft disc 8, a connecting threaded sleeve 9, a spring ring 10, an adjusting stud 11, a screw valve 12, a sliding ring 13 and a sealing ring 14.
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.
Referring to fig. 1-2, a piston rod end joint comprises a piston rod 2 and a cylinder piston rod sleeve 1 fixed at the end of the piston rod 2, wherein a cavity is reserved on the inner wall of one end of the cylinder piston rod sleeve 1 far away from the piston rod 2, a ball head frame 4 is arranged on the inner wall of the cavity, a fixed disc is clamped on the outer wall of the top end of the ball head frame 4, a same dustproof buckle 5 is clamped between the inner wall of the fixed disc and the edge of the inner wall of the cylinder piston rod sleeve 1, a ball-shaped cavity is reserved on the inner wall of the ball head frame 4, a floating ball head 3 is rotatably connected to the inner wall of the ball-shaped cavity, a connecting screw sleeve 9 is sleeved on the outer wall of one end of the floating ball head 3 far away from the piston rod 2, a gland nut 7 is connected to the outer wall of one end of the connecting screw sleeve 9 through threads, a fixed shaft disc 8 is integrally, the outer wall of one end of the floating ball head 3, which is far away from the piston rod 2, is provided with three to four screw petals 12 which are distributed in an annular mode at equal intervals, the outer wall of each screw petal 12 is in threaded engagement with the inner wall of the connecting screw sleeve 9 through threads, the end, which is close to the connecting screw petal 12 of the floating ball head 3, of the dustproof buckle 5 is provided with an arc-shaped groove, the inner wall of each arc-shaped groove is connected with a spring ring 10 in a clamping mode, fastening assemblies are arranged between the inner walls of two sides of the dustproof buckle 5 and the outer wall of the fixed disc respectively, each fastening assembly comprises an adjusting stud 11 and a press plug 6, the adjusting stud 11 is connected onto the inner wall of the press plug 6 through threads, a heat dissipation annular cavity is reserved on the inner wall of the ball head frame 4, lubricating grease is filled in the inner wall of the heat dissipation.
The working principle is as follows: the piston rod 2 of the end joint of the piston rod is connected with the right end of the floating joint 3, the floating joint 3 is connected in a spherical manner, so that a stud is allowed to swing in three directions of X, Y, Z in a sliding ring, a swinging angle is allowed to be within +/-5 degrees, the stud flap 12 and the sliding ring 13 can slide slightly eccentrically in the vertical direction of the joint axis, the dustproof buckle 5 plays a dustproof role to protect internal lubricating grease, the stainless steel is adopted for corrosion-resistant environment, the floating joint 3 does not require the load to be consistent with the cylinder axis, so the processing precision of the mounting piece is not high, the mounting working hour is greatly shortened, and the dustproof cover is arranged, so that the service life is long, the spherical swinging angle is within +/-5 degrees, the eccentric distance is allowed to be 0.5mm, and the pneumatic connector is suitable for higher tensile and compressive load.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A piston rod end joint comprises a piston rod (2) and a cylinder piston rod sleeve (1) fixed at the end part of the piston rod (2), and is characterized in that a cavity is reserved on the inner wall of one end, far away from the piston rod (2), of the cylinder piston rod sleeve (1), a ball head frame (4) is arranged on the inner wall of the cavity, a fixed disc is clamped on the outer wall of the top end of the ball head frame (4), a same dustproof buckle (5) is clamped between the inner wall of the fixed disc and the edge of the inner wall of the cylinder piston rod sleeve (1), a spherical cavity is reserved on the inner wall of the ball head frame (4), the inner wall of the spherical cavity is rotatably connected with a floating ball head (3), a connecting threaded sleeve (9) is sleeved on the outer wall of one end, far away from the piston rod (2), of the floating ball head (3), and the outer wall of one end, close to the floating, a fixed shaft disc (8) is integrally welded in the middle of the outer wall of the connecting threaded sleeve (9), and a sealing ring (14) is sleeved on the outer wall of one side, close to the connecting threaded sleeve (9), of the fixed shaft disc (8).
2. A piston rod end fitting according to claim 1, characterized in that the outer wall of the end of the floating ball head (3) remote from the piston rod (2) is provided with three to four equally spaced screw flights (12) distributed annularly and the outer wall of the screw flights (12) form a screw thread engagement fit with the inner wall of the connecting screw sleeve (9) by means of screw threads.
3. The piston rod end joint according to claim 1, characterized in that the end of the dust-proof buckle (5) close to the connecting screw clack (12) of the floating ball head (3) is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is clamped with the spring ring (10).
4. A piston rod end fitting according to claim 3, characterized in that a fastening assembly is provided between the inner walls of both sides of the dust clip (5) and the outer wall of the stationary disc, and the fastening assembly comprises an adjusting stud (11) and a press plug (6), the adjusting stud (11) being screwed onto the inner wall of the press plug (6).
5. Piston rod end joint according to claim 1, wherein the inner wall of the ball head holder (4) leaves a heat dissipating annular cavity and the heat dissipating annular cavity inner wall is filled with grease.
6. Piston rod end joint according to claim 2, wherein the joint of the screw lobe (12) and the floating ball head (3) is provided with a sliding ring (13), and the outer wall of the sliding ring (13) is slidably connected to the inner wall of the dust button (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575706.5U CN210661327U (en) | 2019-09-22 | 2019-09-22 | Piston rod end joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575706.5U CN210661327U (en) | 2019-09-22 | 2019-09-22 | Piston rod end joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661327U true CN210661327U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921575706.5U Active CN210661327U (en) | 2019-09-22 | 2019-09-22 | Piston rod end joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210661327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014200A (en) * | 2021-11-11 | 2022-02-08 | 徐州徐工液压件有限公司 | Double-screw auxiliary guide post type oil cylinder assembly platform |
-
2019
- 2019-09-22 CN CN201921575706.5U patent/CN210661327U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014200A (en) * | 2021-11-11 | 2022-02-08 | 徐州徐工液压件有限公司 | Double-screw auxiliary guide post type oil cylinder assembly platform |
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