CN214063436U

CN214063436U - High-stability hollow rotary oil cylinder

Info

Publication number: CN214063436U
Application number: CN202023342675.4U
Authority: CN
Inventors: 陈兵; 孙强
Original assignee: Changzhou Kepute Jiashun Machinery Industry Co ltd
Current assignee: Changzhou Kepute Jiashun Machinery Industry Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-27
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a cavity rotary cylinder that stability is high relates to cavity rotary cylinder's field, and it includes the hydro-cylinder body, the inlet port has been seted up on the hydro-cylinder body, the inlet port interpolation is equipped with into oil pipe, the spout has been seted up on advancing oil pipe's the lateral wall, sliding connection has the slider in the spout, be equipped with on the inner wall of inlet port and be used for supplying slider male draw-in groove, be equipped with compression spring in the spout, compression spring's one end and the tank bottom butt of spout, the other end and slider butt. This application has and reduces to advance to be connected unreliable probable effect between oil pipe and the hydro-cylinder body.

Description

High-stability hollow rotary oil cylinder

Technical Field

The application relates to the field of hollow rotary oil cylinders, in particular to a hollow rotary oil cylinder with high stability.

Background

The rotary hydraulic cylinder can be divided into two structures, one structure is that the rotary hydraulic cylinder can be a through hole, namely a workpiece can pass through the middle of an oil cylinder, the hydraulic cylinder can be matched with a hollow hydraulic chuck for installation and use, longer bars can be machined, an automatic feeding machine can be matched for automatic feeding machining, automatic feeding and automatic machining are achieved, an operator can simultaneously operate multiple lathes, and labor cost is reduced.

Chinese patent No. CN204755454U discloses a hollow rotary oil hydraulic cylinder, which comprises a rotary cylinder, a rotary valve fixed to the rotary cylinder, a non-rotatable housing sleeved outside the rotary valve, and at least one bearing disposed between the rotary valve and the housing, and two oil seals disposed outside the rotary valve and located at two sides of the bearing; each oil seal has a width in the axial direction, and the ratio of the width to the inner diameter of the oil seal is less than or equal to 0.24; the ratio of the outer diameter to the inner diameter of each oil seal is less than or equal to 1.7.

The rotary oil cylinder generally realizes oil inlet and oil outlet by connecting an oil pipe, but the inventor finds that the oil pipe is easily popped out of the rotary oil cylinder due to overlarge pressure because the pressure in the rotary oil cylinder is overhigh, so that the rotary oil cylinder stops working suddenly.

SUMMERY OF THE UTILITY MODEL

In order to improve the unreliable problem of oil pipe and cavity gyration hydro-cylinder connection, this application provides a cavity gyration hydro-cylinder that stability is high.

The application provides a high cavity gyration hydro-cylinder of stability adopts following technical scheme:

the utility model provides a cavity rotary cylinder that stability is high, includes the hydro-cylinder body, the inlet port has been seted up on the hydro-cylinder body, the inlet port interpolation is equipped with the oil inlet pipe, the spout has been seted up on the lateral wall of oil inlet pipe, sliding connection has the slider in the spout, be equipped with on the inner wall of inlet port and be used for supplying slider male draw-in groove, be equipped with compression spring in the spout, compression spring's one end and the tank bottom butt of spout, the other end and slider butt.

Through adopting above-mentioned technical scheme, when advancing oil pipe and inserting the inlet port, press the spout with the slider earlier, then insert the inlet port with advancing oil pipe, when spout and draw-in groove are aimed at, insert the draw-in groove under compression spring's the effect is pounded to the slider, with advancing oil pipe and being fixed in the inlet port, reduce and advance oil pipe and the unreliable possibility of being connected between the hydro-cylinder body.

Optionally, an inclined plane is arranged at one end, facing the clamping groove, of the sliding block, the inclined plane is arranged towards the insertion direction of the oil inlet pipe, and when the oil inlet pipe is inserted into the oil inlet hole, the inclined plane is abutted to the side wall of the oil inlet hole.

Through adopting above-mentioned technical scheme, when advancing oil pipe and inserting the inlet port, the inclined plane earlier with the lateral wall butt of inlet port, returns the spout with the slider pressure, when spout and draw-in groove alignment, the draw-in groove is inserted under compression spring's effect to the slider, is fixed in the inlet port with advancing oil pipe, need not manual press down the slider, promotes the convenience of advancing oil pipe installation.

Optionally, an arc surface is arranged at one end of the clamping groove along the circumferential direction of the oil inlet, and one end, far away from the clamping groove, of the arc surface is connected with the inner wall of the oil inlet.

Through adopting above-mentioned technical scheme, when needs pull down the inlet tube, rotate the inlet tube, make the slider rotate towards the arc surface, rotate along the arc surface, until the lateral wall butt of slider and inlet port, the slider is pressed back the spout this moment, can directly extract the inlet tube, and is comparatively convenient.

Optionally, be equipped with the step face with advance oil pipe terminal surface butt in the inlet port, advance oil pipe and be equipped with first sealing strip towards the terminal surface of step face, be equipped with on the step face and supply first sealing strip male first seal groove.

Through adopting above-mentioned technical scheme, first sealing strip increases the leakproofness between step face and the oil inlet pipe, reduces the possibility that fluid was revealed.

Optionally, the cross section of the first sealing groove is in an isosceles trapezoid shape, the small end faces the oil inlet pipe, the width of the small end of the cross section of the first sealing groove is consistent with that of the first sealing strip, and the thickness of the first sealing strip is larger than the depth of the first sealing groove.

Through adopting above-mentioned technical scheme, after the step face with advance the terminal surface butt of oil pipe, first sealing strip is extrudeed, fills up first seal groove, has increased the area of contact of first sealing strip and first seal groove, has also increased seal area.

Optionally, a second sealing groove is formed in the junction of the step surface and the side wall of the oil inlet hole, a second sealing strip is arranged in the second sealing groove, and when the step surface abuts against the end surface of the oil inlet pipe, the end surface of the oil inlet pipe abuts against the second sealing strip.

Through adopting above-mentioned technical scheme, the leakproofness between second sealing strip can further increase the step face and advance oil pipe terminal surface reduces the possibility that fluid was revealed.

Optionally, the cross section of the second sealing strip is circular.

Through adopting above-mentioned technical scheme, the cross-section is circular shape second sealing strip when advancing oil pipe and step face butt, forms two deformation faces, and one deformation face and the terminal surface butt of advancing oil pipe, another and the lateral wall butt of advancing oil pipe further increase the leakproofness.

Optionally, advance the oil pipe and go up the cover and be equipped with the adapter sleeve, the hydro-cylinder body is equipped with the bulge loop towards the adapter sleeve, the inner wall threaded connection of bulge loop and adapter sleeve, the adapter sleeve advances oil pipe towards and is equipped with the go-between, advance fixedly connected with fender ring on the oil pipe, it is located between step face and the go-between to keep off the ring, the external diameter that keeps off the ring is greater than the internal diameter of go-between, during the step face with advance the terminal surface butt of oil pipe, the go-between with keep off the ring butt.

Through adopting above-mentioned technical scheme, rotate the adapter sleeve, make adapter sleeve and bulge loop threaded connection, when keeping off ring and go-between butt, the step face also just with advance the terminal surface butt of oil pipe, the adapter sleeve is fixed once more to advancing oil pipe, reduces the hydro-cylinder body during operation advance oil pipe and drop the possibility.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the oil inlet hole, the sliding groove, the sliding block, the clamping groove and the compression spring, the possible effect of reducing unreliable connection between the oil inlet pipe and the oil cylinder body is achieved;

2. through the arrangement of the connecting sleeve, the connecting ring, the baffle ring and the convex ring, the oil inlet pipe is fixed again, and the possibility that the oil inlet pipe falls off when the oil cylinder body works is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the whole in the embodiment of the present application.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

Fig. 3 is a partially enlarged view of a portion B in fig. 2.

Fig. 4 is a schematic sectional view of C-C in fig. 2.

Fig. 5 is a partially enlarged view of a portion D in fig. 4.

Description of reference numerals: 1. an oil cylinder body; 11. an oil inlet hole; 111. a card slot; 112. a circular arc surface; 12. a step surface; 121. a first seal groove; 122. a second seal groove; 123. a second seal strip; 2. an oil inlet pipe; 21. a chute; 211. a limiting groove; 22. a first seal strip; 3. a first fixing device; 31. a slider; 311. a bevel; 32. a limiting block; 33. a compression spring; 4. a second fixing device; 41. connecting sleeves; 42. a connecting ring; 43. a convex ring; 44. and (4) a baffle ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses high cavity gyration hydro-cylinder of stability.

Referring to fig. 1, a hollow rotary cylinder with high stability comprises a cylinder body 1, wherein an oil inlet hole 11 is formed in the cylinder body 1, and an oil inlet pipe 2 is inserted into the oil inlet hole 11. A first fixing device 3 is arranged between the oil inlet hole 11 and the oil inlet pipe 2 and used for fixing the oil inlet pipe 2 in the oil inlet hole 11. The oil inlet pipe 2 is also provided with a second fixing device 4 for fixing the oil inlet pipe 2 on the oil cylinder body 1.

Referring to fig. 1 and 2, a stepped surface 12 is formed in the oil inlet hole 11 to abut against the end surface of the oil inlet pipe 2. The second fixing device 4 comprises a connecting sleeve 41, a connecting ring 42, a baffle ring 44 and a convex ring 43, the connecting sleeve 41 is sleeved on the oil inlet pipe 2, the connecting ring 42 is integrally formed on the inner wall of the connecting sleeve 41, the convex ring 43 is fixedly connected to the side wall of the oil cylinder body 1 facing the connecting sleeve 41, and the outer wall of the convex ring 43 is in threaded connection with the inner wall of the connecting sleeve 41. The baffle ring 44 is fixedly connected to the side wall of the oil inlet pipe 2, the baffle ring 44 is located between the connecting ring 42 and the step surface 12, and the outer diameter of the baffle ring 44 is larger than the inner diameter of the connecting ring 42. When the end of the connecting ring 42 facing the oil inlet hole 11 abuts against the end of the stopper ring 44 away from the oil inlet hole 11, the step surface 12 also abuts against the end surface of the oil inlet pipe 2, and the oil inlet pipe 2 is fixed to the cylinder body 1.

Referring to fig. 2 and 3, the first fixing device 3 may be arranged in a plurality of circumferential arrays along the oil inlet pipe 2, the first fixing device 3 includes a sliding block 31 and a compression spring 33, the sliding groove 21 is radially formed on the side wall of the oil inlet pipe 2, the sliding block 31 is slidably connected in the sliding groove 21, the compression spring 33 is located in the sliding groove 21, one end of the compression spring 33 is abutted to the bottom of the sliding groove 21, and the other end is abutted to the sliding block 31. The sidewall of the oil inlet 11 is provided with a slot 111 for inserting the sliding block 31, the oil inlet 2 is inserted into the oil inlet 11, and when the sliding slot 21 is aligned with the slot 111, the sliding block 31 is inserted into the slot 111 under the action of the compression spring 33, so as to fix the oil inlet 2 into the oil inlet 11. When the step surface 12 abuts against the end surface of the oil inlet pipe 2, the positions of the slide groove 21 and the clamping groove 111 in the axial direction of the oil inlet hole 11 are the same. The side wall of the sliding block 31 is fixedly connected with a limiting block 32, and the side wall of the sliding chute 21 is provided with a limiting groove 211 for the limiting block 32 to slide, so that the possibility that the sliding block 31 directly pops out of the sliding chute 21 outside the oil inlet 11 is reduced.

Referring to fig. 2 and 4, an inclined surface 311 is formed at one end of the slider 31 facing the locking groove 111, the inclined surface 311 is disposed facing the step surface 12, by controlling the shape and position of the limiting groove 211, a part of the inclined surface 311 is located inside the sliding groove 21 and a part of the inclined surface 311 is located outside the sliding groove 21, when the oil inlet pipe 2 is inserted into the oil inlet hole 11, the inclined surface 311 is firstly abutted against the side wall of the oil inlet hole 11 to press the slider 31 back to the sliding groove 21, and when the sliding groove 21 is aligned with the locking groove 111, the slider 31 is then inserted into the locking groove 111 under the action of the compression spring 33. An arc surface 112 is integrally formed at one end of the clamping groove 111 along the circumferential direction of the oil inlet 11, and one end of the arc surface 112, which is far away from the clamping groove 111, is combined with the inner wall of the oil inlet 11. When the oil inlet pipe 2 is disassembled, the oil inlet pipe 2 is rotated, the sliding block 31 rotates towards the arc surface 112 in the clamping groove 111 and rotates to the inner wall of the oil inlet hole 11 along the arc surface 112, so that the sliding block 31 is pressed back to the sliding groove 21, and the oil inlet pipe 2 can be pulled out at the moment. One end of the sliding block 31 facing the clamping groove 111 can be provided with a round angle, so that the sliding block 31 can be conveniently pushed back to the sliding groove 21 by the arc surface 112.

Referring to fig. 2, a first sealing strip 22 is bonded to an end surface of the oil inlet pipe 2 facing the step surface 12, the cross-sectional shape of the first sealing strip 22 is rectangular, a first sealing groove 121 into which the first sealing strip 22 is inserted is formed in the step surface 12, and the thickness of the first sealing strip 22 is greater than the depth of the first sealing groove 121. The cross section of the first sealing groove 121 is isosceles trapezoid, the small end faces the oil inlet pipe 2, and the width of the small end of the cross section of the first sealing groove 121 is the same as that of the first sealing strip 22. When the step surface 12 abuts against the end surface of the oil inlet pipe 2, the first sealing strip 22 is extruded and deformed, so that the first sealing groove 121 is filled, the contact area between the first sealing strip 22 and the first sealing groove 121 is increased, and the sealing performance is improved.

Referring to fig. 2, a second sealing groove 122 is formed at the junction of the step surface 12 and the side wall of the oil inlet hole 11, a second sealing strip 123 is bonded in the second sealing groove 122, the cross section of the second sealing strip 123 is circular, and the second sealing strip 123 is partially located outside the second sealing groove 122, so that when the step surface 12 abuts against the end surface of the oil inlet pipe 2, the end surface of the oil inlet pipe 2 abuts against the second sealing strip 123, the second sealing strip 123 is extruded and deformed to form two deformation surfaces, one deformation surface abuts against the end surface of the oil inlet pipe 2, and the other surface abuts against the side wall of the oil inlet pipe 2, thereby improving the sealing performance. One end of the second seal groove 122 extends to the step surface 12, so that the first seal strip 22 can be conveniently extruded into the step surface 12, and the step surface 12 can be abutted against the end surface of the oil inlet pipe 2.

The implementation process of the hollow rotary oil cylinder with high stability in the embodiment of the application is as follows: when the oil inlet pipe 2 is installed, the oil inlet pipe 2 is inserted into the oil inlet hole 11, the inclined surface 311 is firstly abutted against the side wall of the oil inlet hole 11, the slider 31 is pressed back to the sliding groove 21, then the oil pipe 2 is continuously inserted until the step surface 12 is abutted against the end surface of the oil inlet pipe 2, at this time, the sliding groove 21 and the clamping groove 111 are at the same axial position of the oil inlet hole 11, and if the circumferential position is the same, the slider 31 is inserted into the clamping groove 111 under the action of the compression spring 33; if the circumferential position is different, the oil inlet pipe 2 is rotated to align the locking groove 111 with the sliding groove 21, and the sliding block 31 is inserted into the locking groove 111 to fix the oil inlet pipe 2 in the oil inlet hole 11. After the oil inlet pipe 2 is fixed in the oil inlet hole 11, the connecting sleeve 41 is rotated to connect the connecting sleeve 41 to the convex ring 43 in a threaded manner, and the connecting ring 42 is abutted against the baffle ring 44, so that the oil inlet pipe 2 is reinforced, and the possibility that the oil inlet pipe 2 is separated from the oil inlet hole 11 is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high cavity gyration hydro-cylinder of stability, includes hydro-cylinder body (1), its characterized in that: oil feed port (11) have been seted up on hydro-cylinder body (1), oil feed port (11) interpolation is equipped with inlet tube (2), spout (21) have been seted up on the lateral wall of inlet tube (2), sliding connection has slider (31) in spout (21), be equipped with on the inner wall of inlet tube (11) and be used for supplying slider (31) male draw-in groove (111), be equipped with compression spring (33) in spout (21), the one end of compression spring (33) and the tank bottom butt of spout (21), the other end and slider (31) butt.

2. The high-stability hollow rotary oil cylinder according to claim 1, characterized in that: the one end of slider (31) orientation draw-in groove (111) is equipped with inclined plane (311), inclined plane (311) set up towards the direction of insertion of advancing oil pipe (2), when advancing oil pipe (2) and inserting inlet port (11), inclined plane (311) and the lateral wall butt of inlet port (11).

3. The high-stability hollow rotary oil cylinder according to claim 1, characterized in that: the oil inlet is characterized in that an arc surface (112) is arranged at one end of the clamping groove (111) along the circumferential direction of the oil inlet (11), and one end, far away from the clamping groove (111), of the arc surface (112) is connected with the inner wall of the oil inlet (11).

4. The high-stability hollow rotary oil cylinder according to claim 1, characterized in that: be equipped with in inlet port (11) step face (12) with inlet tube (2) terminal surface butt, inlet tube (2) are equipped with first sealing strip (22) towards the terminal surface of step face (12), be equipped with on step face (12) and supply first sealing groove (121) of first sealing strip (22) male.

5. The high-stability hollow rotary oil cylinder according to claim 4, characterized in that: the cross section of the first sealing groove (121) is isosceles trapezoid, the width of the small end of the cross section of the first sealing groove (121) is consistent with the width of the first sealing strip (22), and the thickness of the first sealing strip (22) is larger than the depth of the first sealing groove (121).

6. The high-stability hollow rotary oil cylinder according to claim 5, characterized in that: step face (12) and the juncture of inlet port (11) lateral wall are equipped with second seal groove (122), be equipped with second sealing strip (123) in second seal groove (122), during step face (12) and the terminal surface butt of advancing oil pipe (2), advance the terminal surface and the butt of second sealing strip (123) of oil pipe (2).

7. The high-stability hollow rotary oil cylinder according to claim 6, characterized in that: the cross section of the second sealing strip (123) is circular.

8. The high-stability hollow rotary oil cylinder according to claim 4, characterized in that: advance oil pipe (2) and go up the cover and be equipped with adapter sleeve (41), hydro-cylinder body (1) is equipped with bulge loop (43) towards adapter sleeve (41), the inner wall threaded connection of bulge loop (43) and adapter sleeve (41), adapter sleeve (41) are equipped with go-between (42) towards advancing oil pipe (2), advance oil pipe (2) and go up fixedly connected with fender ring (44), keep off ring (44) and be located between step face (12) and go-between (42), the external diameter that keeps off ring (44) is greater than the internal diameter of go-between (42), during the terminal surface butt of step face (12) and oil pipe (2), go-between (42) and fender ring (44) butt.