CN212985674U - Variable-amplitude telescopic oil cylinder with replaceable earrings - Google Patents
Variable-amplitude telescopic oil cylinder with replaceable earrings Download PDFInfo
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- CN212985674U CN212985674U CN202021995517.6U CN202021995517U CN212985674U CN 212985674 U CN212985674 U CN 212985674U CN 202021995517 U CN202021995517 U CN 202021995517U CN 212985674 U CN212985674 U CN 212985674U
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Abstract
The utility model relates to a removable flexible hydro-cylinder that becomes of earrings relates to hydraulic cylinder's field, has solved earrings and piston rod and has passed through welded fastening usually, changes after the earrings damages and need take the piston rod together to replace together, and the cost is higher, the problem of wasting time and energy, and it includes cylinder body, piston rod and earrings, one side an organic whole that the earrings is close to the piston rod is equipped with the cylinder cover, the cylinder cover is located on the piston rod, the inside wall butt of piston rod and cylinder cover, it is protruding to have on the inside wall of cylinder cover, be equipped with the groove of sliding on the piston rod, the arch is inlayed and is established and slide in the inslot that slides, be equipped with on the inside wall in the groove of sliding. When this application has the earrings and damages, only need to change the earrings can, need not whole piston rod and change, practiced thrift cost and simple structure, labour saving and time saving's effect.
Description
Technical Field
The application relates to the field of hydraulic oil cylinders, in particular to a variable-amplitude telescopic oil cylinder with replaceable earrings.
Background
The amplitude-variable oil cylinder realizes the amplitude-variable action of the crane. The amplitude-variable oil cylinder is provided with two oil ports, one is communicated with the rodless cavity, and the other is communicated with the rod cavity. The rodless cavity is communicated with pressure oil to push the piston rod to extend out, so that the amplitude variation starting action is realized. The rodless cavity is opened (the amplitude-variable balance valve is opened), and the piston rod is retracted by the power generated by the dead weight of the hoisting weight, so that the amplitude-variable falling action is realized.
In the related art, referring to fig. 8, a variable-amplitude telescopic oil cylinder comprises a cylinder body 1, two piston rods 2 and two earrings 3, wherein the two piston rods 2 are respectively arranged at two ends of the cylinder body 1 in a penetrating manner and slide on the two ends of the cylinder body 1, and the earrings 3 are fixedly connected to one ends of the piston rods 2 far away from the cylinder body 1.
In order to lift the crane boom, the inventor thinks that earrings at two ends of the piston rod are often fixed on the crane boom and the crane base body respectively on the crane in order to lift the crane boom, the earrings are easy to wear after long-term rotation, the earrings and the piston rod are usually fixed by welding, and replacement of the earrings after damage needs to be carried out together with the piston rod, so that the cost is high, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve earrings and piston rod and pass through welded fastening usually, change after earrings damage and need be taken the piston rod together to replace, the cost is higher, the problem that wastes time and energy, this application provides a removable flexible hydro-cylinder that becomes of earrings.
The application provides a removable flexible hydro-cylinder that becomes of earrings adopts following technical scheme:
the utility model provides a removable flexible hydro-cylinder that becomes of earrings, includes cylinder body, piston rod and earrings, one side an organic whole that the earrings are close to the piston rod is equipped with the cylinder cover, the cylinder cover is located on the piston rod, the inside wall butt of piston rod and cylinder cover, it is protruding to have on the inside wall of cylinder cover, be equipped with the groove of sliding on the piston rod, the arch is inlayed and is established and slide in the groove of sliding, be equipped with on the inside wall in groove of sliding and supply the protruding locking groove of inlaying and establishing.
Through adopting above-mentioned technical scheme, the earrings is close to one side of piston rod and has the cylinder cover, the cylinder covers and has the arch, the protruding one end that is close to the cylinder cover from the piston rod slides in the inslot that slides, then when the arch is located the position that the locking groove corresponds, rotatory cylinder cover, make the protruding embedding locking inslot of cylinder cover, thereby make the earrings be difficult for breaking away from the piston rod under the non-human effect, and when the earrings need to be changed, the arch breaks away from the locking inslot, can break away from the inslot that slides from the direction that perpendicular piston rod can be followed, thereby make the earrings break away from on the piston rod, when the earrings damage, only need to change the earrings can, need not whole piston rod change, the cost is practiced thrift and simple structure, time.
Optionally, an organic whole is equipped with the card post on the piston rod, the card post is concentric setting with the piston rod, the drum cover is located on the card post, the inside wall and the card post butt of drum cover, one side butt that the drum cover is close to the piston rod is on the piston rod, the lateral wall of drum cover flushes with the lateral wall of piston rod, the groove that slides is located on the card post, the locking groove is located on the card post.
Through adopting above-mentioned technical scheme, on the card post was located to the drum cover, the lateral wall diameter of drum cover was unanimous with the diameter of piston rod lateral wall, and when the piston rod slided on the cylinder body, the drum cover was difficult for taking place to interfere with the inside wall of cylinder body, and the drum cover is difficult for damaging, has improved the life-span of drum cover.
Optionally, a locking assembly for fixing the cylinder cover on the clamping column is further arranged on the cylinder cover.
Through adopting above-mentioned technical scheme, the setting of locking Assembly locks the drum cover for the drum cover is difficult for breaking away from the card post, has improved the stability of earring installation.
Optionally, the locking subassembly includes the projection, the cylinder cover has been seted up on being close to the end wall of piston rod and has been inlayed and establish the groove, inlay the opening of establishing the groove and set up towards the piston rod, the projection inlays to be established and slides and connects in inlaying and establish the inslot, one side that the piston rod is close to the cylinder cover is equipped with and supplies projection male recess, it is equipped with the hole of stirring on establishing the inside wall in groove to inlay, one side that the projection is close to the hole of stirring is equipped with dials the movable block, dial the movable block and inlay and establish and slide in stirring downtheholely.
Through adopting above-mentioned technical scheme, the projection is from inlaying in establishing the recess in the groove for the cylinder cover is difficult for rotating around the card post, thereby locks the arch in locking the inslot, makes the cylinder cover be difficult for breaking away from the card post, has improved the stability of earrings installation.
Optionally, a compression spring is further arranged in the embedding groove, one end of the compression spring is fixedly connected to the groove bottom of the embedding groove, and the other end of the compression spring is fixedly connected to the convex column.
Through adopting above-mentioned technical scheme, compression spring's setting for the projection need not artificially to promote and can insert locking inslot under compression spring's effort, has practiced thrift manpower resources, has improved the locking efficiency of locking subassembly to the cylinder cover.
Optionally, the locking assembly comprises a locking piece and a locking bolt, the locking piece is hinged to the outer side wall, close to the piston rod, of the cylinder cover, an embedding groove for the locking piece to be embedded is formed in the piston rod, a penetrating hole for the locking bolt to penetrate is formed in the locking piece, and a thread groove for the locking bolt to be in threaded connection is formed in the bottom of the embedding groove.
Through adopting above-mentioned technical scheme, locking bolt passes threaded connection in the thread groove behind the wear to establish the hole, locks the locking plate in the inlay card inslot to make the cylinder casing be difficult for rotating around the card post, improved the stability of earrings installation.
Optionally, a notch is arranged on the inner side wall of the clamping and embedding groove.
Through adopting above-mentioned technical scheme, the area of gripping of locking plate has been increased in the setting of breach, and convenience of customers breaks away from the locking plate from the inlay card inslot in following the breach, has improved the dismantlement efficiency of locking plate.
Optionally, one side of the piston rod close to the cylinder cover is fixedly connected with a rubber pad, and the other end of the rubber pad abuts against one end of the cylinder cover close to the piston rod.
Through adopting above-mentioned technical scheme, the setting of rubber pad for when cylinder cover and piston rod butt, difficult emergence rigidity collision has increased the life of cylinder cover between cylinder cover and the piston rod.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the earrings are damaged, only the earrings need to be replaced, and the whole piston rod does not need to be replaced, so that the cost is saved, the structure is simple, and the time and the labor are saved;
2. the locking assembly is arranged to lock the cylinder cover, so that the cylinder cover is not easy to separate from the clamping column, and the mounting stability of the earrings is improved;
3. the rubber pad is arranged, so that when the cylinder cover is abutted to the piston rod, rigid collision is not easy to occur between the cylinder cover and the piston rod, and the service life of the cylinder cover is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a luffing cylinder with replaceable earrings in embodiment 1 of the present application.
Fig. 2 is a partial exploded view of a luffing cylinder with an ear ring replaceable according to embodiment 1 of the present application.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic structural view of an earring and a cylinder cap in embodiment 1 of the present application.
Fig. 5 is a partial exploded view of a luffing cylinder with an ear ring replaceable according to embodiment 2 of the present application.
Fig. 6 is an enlarged schematic view of a portion B in fig. 5.
Fig. 7 is an enlarged schematic view of the portion C in fig. 5.
Fig. 8 is a schematic structural view of a luffing cylinder with replaceable earrings in the related art.
Description of reference numerals: 1. a cylinder body; 2. a piston rod; 21. clamping the column; 211. a sliding groove; 212. a locking groove; 22. a groove; 23. a clamping groove; 231. a thread groove; 24. a notch; 25. a rubber pad; 3. an ear ring; 31. a cylindrical cover; 311. embedding a groove; 312. a toggle hole; 313. a protrusion; 4. a locking assembly; 41. a convex column; 411. a shifting block; 42. a compression spring; 43. a locking piece; 431. perforating holes; 44. and locking the bolt.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses a changeable range expansion cylinder of earrings.
Example 1
Referring to fig. 1, a luffing cylinder body 1 with replaceable earrings 3, a piston rod 2 and earrings 3.
Referring to fig. 1, 2, the quantity of piston rod 2 is two, two piston rods 2 wear to establish respectively and slide in the both ends of cylinder body 1, one side that 3 holes in earrings were kept away from to earrings 3 has cylinder cover 31, the opening of cylinder cover 31 sets up towards piston rod 2, piston rod 2 is close to the integrative card post 21 that is equipped with of one end of cylinder cover 31, card post 21 is concentric with piston rod 2 and sets up, cylinder cover 31 overlaps locates on calorie post 21, the inside wall butt of cylinder cover 31 is on the lateral wall of card post 21, be difficult for rocking when making cylinder cover 31 overlap locate on calorie post 21.
With reference to fig. 4, the inner side wall of the cylindrical cover 31 has a protrusion 313, the outer side wall of the clamping column 21 is provided with a sliding groove 211, the sliding groove 211 is arranged along the length direction of the clamping column 21, the sliding groove 211 penetrates through one end of the clamping column 21 far away from the piston rod 2, and the protrusion 313 is conveniently inserted into the sliding groove 211 from one end of the clamping column 21 far away from the piston rod 2; the locking groove 212 has been seted up on the inside wall of groove 211 that slides, and locking groove 212 is located the one side that groove 211 that slides is close to piston rod 2, and locking groove 212 is perpendicular setting with groove 211 that slides, and protruding 313 slides when the position that groove 211 corresponds locking groove 212 that slides, rotates cylinder cover 31 for protruding 313 slides in locking groove 212, thereby cylinder cover 31 is difficult to break away from on calorie post 21.
The rubber pad 25 is bonded on one side of the piston rod 2 close to the cylinder cover 31, and the other end of the rubber pad 25 abuts against one end of the cylinder cover 31 close to the piston rod 2, so that the cylinder cover 31 and the piston rod 2 are not easy to rigidly collide.
Referring to fig. 2, a locking assembly 4 is further provided on the cylinder cover 31 to further fix the cylinder cover 31 to the latch 21.
Combine fig. 3, 4, locking Assembly 4 includes projection 41, has seted up on the lateral wall that cylinder cover 31 is close to piston rod 2 and has inlayed groove 311, inlays the opening of establishing groove 311 and sets up towards piston rod 2, and projection 41 inlays to establish and slide and connect in inlaying groove 311, and piston rod 2 has seted up inlay groove 23 near the one end of cylinder cover 31, and when cylinder cover 31 butt on piston rod 2, projection 41 inserts in locking groove 212 for cylinder cover 31 is difficult for rotating.
Set up on the inside wall of inlaying the groove 311 and seted up toggle hole 312, toggle hole 312 communicates with each other with the outside of drum cover 31, and one side that is close to toggle hole 312 on the projection 41 has a toggle block 411, and toggle block 411 inlays and establishes and slides in toggle hole 312, and toggle block 411 flushes with the lateral wall of drum cover 31 for toggle block 411 is difficult for taking place to interfere with cylinder body 1.
The embedded groove 311 is embedded with a compression spring 42, one end of the compression spring 42 is adhered to the bottom of the embedded groove 311, the other end of the compression spring 42 is adhered to the convex column 41, and the convex column 41 can be inserted into the locking groove 212 without being manually held.
The implementation principle of the embodiment 1 is as follows: when the cylinder cover 31 is installed, the cylinder cover 31 is placed on the clamping column 21, the protrusion 313 is embedded in the sliding groove 211, when the protrusion 313 slides to the bottom of the sliding groove 211, the cylinder cover 31 is rotated, the protrusion 313 is embedded in the locking groove 212, and the convex column 41 is inserted into the groove 22 under the action of the compression spring 42 to lock the cylinder cover 31; when the earring 3 is damaged, the dial block 411 is held to make the convex column 41 disengage from the concave groove 22, the cylinder cover 31 is rotated to make the protrusion 313 disengage from the locking groove 212, the protrusion 313 slides to the side far away from the piston rod 2 along the sliding groove 211, and the cylinder cover 31 disengages from the clamping column 21.
Example 2
Referring to fig. 6 and 7, the difference between the embodiment and embodiment 1 is that the locking assembly 4 includes a locking piece 43 and a locking bolt 44, the locking piece 43 is hinged on the outer side wall of the cylinder cover 31 close to the piston rod 2, the piston rod 2 is provided with an embedding groove 23, one side of the locking piece 43 away from the hinge is embedded in the embedding groove 23, the locking piece 43 is provided with a through hole 431, the bottom of the embedding groove 23 is provided with a thread groove 231, and the locking bolt 44 passes through the through hole 431 and then is in threaded connection with the thread groove 231, so that the cylinder cover 31 is not easily separated from the clamping column 21.
The inner side wall of the clamping and embedding groove 23 is provided with a notch 24, so that a user can hold the locking piece 43 from the notch 24 conveniently and peel the locking piece 43 from the clamping and embedding groove 23.
The implementation principle of the embodiment 2 is as follows: when the cylinder cover is installed, the cylinder cover 31 is placed on the clamping column 21, the protrusion 313 is embedded in the sliding groove 211, when the protrusion 313 slides to the bottom of the sliding groove 211, the cylinder cover 31 is rotated, the protrusion 313 is embedded in the locking groove 212, the locking piece 43 is embedded in the embedding groove 23, and the locking bolt 44 passes through the through hole 431 and then is in threaded connection with the threaded groove 231 to lock the cylinder cover 31; when the earring 3 is damaged, the locking bolt 44 is screwed out of the thread groove 231, the locking piece 43 is separated from the snap groove 23 from the notch 24, so that the convex column 41 is separated from the snap groove 23, the cylinder cover 31 is rotated, the protrusion 313 is separated from the locking groove 212, the protrusion 313 slides to the side far away from the piston rod 2 along the sliding groove 211, and the cylinder cover 31 is separated from the snap groove 21.
The notch is formed in the inner side wall of the clamping and embedding groove, so that a user can hold the locking piece from the notch conveniently and peel the locking piece from the clamping and embedding groove.
The implementation principle of the embodiment 2 is as follows: during installation, the cylinder cover is placed on the clamping column, the protrusion is embedded in the sliding groove, when the protrusion slides to the bottom of the sliding groove, the cylinder cover is rotated, the protrusion is embedded in the locking groove, the locking piece is embedded in the embedding groove, and the locking bolt penetrates through the penetrating groove and then is in threaded connection with the threaded groove so as to lock the cylinder cover; when the earrings damage, in screwing out the thread groove with the locking bolt, break away from the inlay card groove with the locking plate from breach department for the projection breaks away from in the inlay card groove, rotates the cylinder cover, makes protruding follow locking inslot break away from, slides the arch to the one side of keeping away from the piston rod along the groove of sliding, and the cylinder cover breaks away from on the inlay card post.
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 (8)
1. The utility model provides a removable change width of cloth flexible hydro-cylinder of earrings, includes cylinder body (1), piston rod (2) and earrings (3), its characterized in that: earring (3) are close to one side an organic whole of piston rod (2) and are equipped with cylinder cover (31), cylinder cover (31) cover is located on piston rod (2), piston rod (2) and the inside wall butt of cylinder cover (31), have protruding (313) on the inside wall of cylinder cover (31), be equipped with groove (211) that slides on piston rod (2), protruding (313) are inlayed and are established and slide in groove (211) that slides, be equipped with on the inside wall of groove (211) that slides and supply protruding (313) to inlay locking groove (212) of establishing.
2. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 1, wherein: the utility model discloses a cylinder cover, including piston rod (2), integrative card post (21) that is equipped with on piston rod (2), card post (21) and piston rod (2) are concentric setting, cylinder cover (31) cover is located on card post (21), the inside wall and the card post (21) butt of cylinder cover (31), one side butt that cylinder cover (31) are close to piston rod (2) is on piston rod (2), the lateral wall of cylinder cover (31) flushes with the lateral wall of piston rod (2), it locates on card post (21) to slide groove (211), locking groove (212) are located on card post (21).
3. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 1, wherein: the cylinder cover (31) is also provided with a locking component (4) for fixing the cylinder cover (31) on the clamping column (21).
4. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 3, wherein: locking Assembly (4) include projection (41), seted up on the end wall that cylinder cover (31) are close to piston rod (2) and inlayed and establish groove (311), the opening of inlaying establishing groove (311) sets up towards piston rod (2), projection (41) are inlayed and are established and slide and connect in inlaying and establish groove (311), one side that piston rod (2) are close to cylinder cover (31) is equipped with and supplies projection (41) male recess (22), it is equipped with stir hole (312) on the inside wall of establishing groove (311) to inlay, one side that projection (41) are close to stir hole (312) is equipped with dials movable block (411), dial movable block (411) and inlay and establish and slide in stirring hole (312).
5. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 4, wherein: still be equipped with compression spring (42) in groove (311) is established in the embedding, the one end fixed connection of compression spring (42) establishes the tank bottom of groove (311) in the embedding, the other end fixed connection of compression spring (42) is on projection (41).
6. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 3, wherein: locking subassembly (4) are including locking plate (43) and locking bolt (44), locking plate (43) articulate on cylinder cover (31) are close to the lateral wall of piston rod (2), be equipped with on piston rod (2) and supply locking plate (43) to inlay card caulking groove (23) of establishing, be equipped with on locking plate (43) and supply wearing to establish hole (431) that locking bolt (44) wore to establish, thread groove (231) that supply locking bolt (44) threaded connection are seted up to the tank bottom of card caulking groove (23).
7. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 6, wherein: and a notch (24) is arranged on the inner side wall of the clamping and embedding groove (23).
8. The luffing telescopic cylinder with the replaceable earrings as claimed in claim 2, wherein: one side of the piston rod (2) close to the cylinder cover (31) is fixedly connected with a rubber pad (25), and the other end of the rubber pad (25) is abutted to one end of the cylinder cover (31) close to the piston rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021995517.6U CN212985674U (en) | 2020-09-12 | 2020-09-12 | Variable-amplitude telescopic oil cylinder with replaceable earrings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021995517.6U CN212985674U (en) | 2020-09-12 | 2020-09-12 | Variable-amplitude telescopic oil cylinder with replaceable earrings |
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| Publication Number | Publication Date |
|---|---|
| CN212985674U true CN212985674U (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021995517.6U Active CN212985674U (en) | 2020-09-12 | 2020-09-12 | Variable-amplitude telescopic oil cylinder with replaceable earrings |
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| Country | Link |
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| CN (1) | CN212985674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017419A (en) * | 2021-11-24 | 2022-02-08 | 张家口市宣化正远钻采机械有限公司 | Novel connecting structure for piston rod end of oil cylinder |
-
2020
- 2020-09-12 CN CN202021995517.6U patent/CN212985674U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017419A (en) * | 2021-11-24 | 2022-02-08 | 张家口市宣化正远钻采机械有限公司 | Novel connecting structure for piston rod end of oil cylinder |
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