CN211231107U - Dustproof multistage telescopic hydraulic cylinder - Google Patents
Dustproof multistage telescopic hydraulic cylinder Download PDFInfo
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- CN211231107U CN211231107U CN201921894297.5U CN201921894297U CN211231107U CN 211231107 U CN211231107 U CN 211231107U CN 201921894297 U CN201921894297 U CN 201921894297U CN 211231107 U CN211231107 U CN 211231107U
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- end cover
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Abstract
The utility model relates to a telescopic cylinder is related to technical field, and discloses a multistage flexible pneumatic cylinder of dust type, including one-level cylinder, cylinder bottom, one-level direction sliding sleeve end cover, one-level piston rod, second grade cylinder, one-level piston, second grade piston rod, second grade piston, spacing ring, second grade direction sliding sleeve end cover, preceding connection and hydraulic fluid port, fixed mounting is in the port department of one-level cylinder at the cylinder bottom, and another port at the one-level cylinder is installed to one-level direction sliding sleeve end cover, and the one-level piston rod sets up the inboard at the one-level cylinder, and the one end of one-level piston rod is. This multistage flexible pneumatic cylinder of dust type for dust impurity can be collected in the dust collecting tank and pile up, thereby be convenient for relevant operating personnel to the maintenance cleaning process of equipment, avoid the dust to carry out contact wear with the dust ring in the cylinder body, reduce the wearing and tearing of one-level piston rod or second grade piston rod to corresponding one-level direction sliding sleeve end cover or second grade direction sliding sleeve end cover inboard.
Description
Technical Field
The utility model relates to a telescopic cylinder correlation technique field specifically is a multistage flexible pneumatic cylinder of dust-protection type.
Background
The pneumatic cylinder is the hydraulic energy that is changed into mechanical energy, the pneumatic cylinder is the hydraulic actuator who is linear reciprocating motion (or swing motion), and multistage flexible pneumatic cylinder carries out multistage flexible reciprocating motion when using, after multistage piston rod is derived, the piston rod exposes in the external environment, some dust particles of frequent can adhesion, reciprocating circular motion and the dust ring long-time friction of cylinder body port department of telescopic link can produce some wearing and tearing after, easily bring the dust into inside the cylinder body, easily lead to the inside fluid of cylinder body to cause the pollution, reduce the quality that equipment used, therefore the inventor has designed a multistage flexible pneumatic cylinder of dust protection type, reduce the influence of external dust to equipment use.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a multistage flexible pneumatic cylinder of dust-protection type has solved the hydro-cylinder and has easily got into the inside problem of cylinder body through multistage piston rod in external dust after long-time the use.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a dustproof multistage telescopic hydraulic cylinder comprises a primary cylinder barrel, a cylinder bottom, a primary guide sliding sleeve end cover, a primary piston rod, a secondary cylinder barrel, a primary piston, a secondary piston rod, a secondary piston, a limiting ring, a secondary guide sliding sleeve end cover, a front connection and an oil port, wherein the cylinder bottom is fixedly arranged at the port of the primary cylinder barrel, the primary guide sliding sleeve end cover is arranged at the other port of the primary cylinder barrel, the primary piston rod is arranged at the inner side of the primary cylinder barrel, one end of the primary piston rod is connected with the primary piston, the other end of the primary piston rod penetrates through the primary guide sliding sleeve end cover and extends to the outer side of the primary cylinder barrel, the secondary cylinder barrel is arranged at the inner side of the primary piston rod, the limiting ring is clamped between the secondary cylinder barrel and the primary piston rod, the secondary piston rod is arranged at the inner side of the secondary cylinder barrel, the, the other end of second grade cylinder is pegged graft in the inboard of one-level piston, and second grade piston fixed mounting is in the one end of second grade piston rod, and the other end of second grade piston rod runs through second grade direction sliding sleeve end cover and extends to the outside of one-level piston rod, and the other end of second grade piston rod is connected with preceding the connection, and fixed mounting has the flange board on the one-level cylinder, all is provided with the hydraulic fluid port on cylinder body and the one-level cylinder, has seted up the oil transportation.
The end openings of the first-stage guide sliding sleeve end cover and the second-stage guide sliding sleeve end cover are fixedly provided with adaptive mounting discs, the inner sides of the two mounting discs are respectively provided with an annular accommodating groove, the side surfaces of the two mounting discs far away from the corresponding first-stage guide sliding sleeve end cover and the second-stage guide sliding sleeve end cover are provided with oil filling holes, the two oil filling holes are communicated with the corresponding annular accommodating grooves, the end openings of the two oil filling holes are respectively provided with a sealing plug, the annular inner side walls of the two mounting discs are respectively and fixedly provided with a sealing steel ring, the annular inner side walls of the two sealing steel rings are respectively contacted with the surfaces of the corresponding second-stage guide sliding sleeve end cover and the second-stage piston rod, the side end surfaces of the two mounting discs are respectively provided with a mounting groove, the inner sides of the two mounting grooves are respectively and fixedly provided with adaptive, the side surfaces of the two dust collecting rings are provided with dust collecting grooves.
Preferably, the second grade direction sliding sleeve end cover links up for the parallel and level with linking department of one-level piston rod, and one-level piston rod is equipped with the steel wire retaining ring at the inboard cover of one-level cylinder, and steel wire retaining ring and spacing ring carry on spacingly to one-level piston rod, avoid one-level piston rod transition displacement to derive one-level cylinder.
Preferably, the fit relationship between the two sealing steel rings and the surfaces of the corresponding secondary guide sliding sleeve end cover and the secondary piston rod is clearance fit.
Preferably, two constitute the enclosure space between sealing steel ring, two mounting discs and the corresponding one-level direction sliding sleeve end cover or the second grade direction sliding sleeve end cover, the enclosure space is accomodate the groove with corresponding annular and is linked together, when equipment uses, accomodate the groove through oil filler point and annular and pour into lubricating oil into the enclosure space, reduce the cooperation wearing and tearing between the equipment structure.
Preferably, the dust collecting groove is formed at the inner side of the end face of the dust collecting ring, and the cross section of the dust collecting groove is in an inwards concave arc shape.
Preferably, the dust collecting ring can be a stainless steel metal ring, and the surfaces of the dust collecting ring and the sealing steel ring are smooth surfaces, so that the friction loss of the corresponding first-stage piston rod or second-stage piston rod during stretching is reduced, and the stable matching use between mechanisms is ensured.
(III) advantageous effects
The utility model provides a multistage flexible pneumatic cylinder of dust-protection type. The method has the following beneficial effects:
(1) this multistage flexible pneumatic cylinder of dust protection, mutually support through setting up mounting disc and dust ring, when equipment uses, corresponding one-level piston rod or second grade piston rod circulate and stretch out and draw back, when one-level piston rod or second grade piston rod shrink, the dust of the surface adhesion of one-level piston rod or second grade piston rod can be blockked by the port wall limit of dust ring, and the dust that dust ring blockked stirs to the dust collecting tank under the shrink of follow-up one-level piston rod or second grade piston rod promotes, make dust impurity can collect in the dust collecting tank and pile up, thereby be convenient for relevant operating personnel to the maintenance cleaning of equipment, avoid the dust to carry out contact wear with the dust ring in the cylinder body, the life of extension equipment.
(2) The dustproof multi-stage telescopic hydraulic cylinder is characterized in that the installation disc, the sealing steel ring and the annular accommodating groove are matched with each other, lubricating oil is injected into the annular containing groove through the oil injection hole, so that the lubricating oil is injected into a closed space formed between the sealing steel ring and the mounting disc, thereby the lubricating oil can contact and lubricate the surface of the corresponding first-stage piston rod or the second-stage piston rod, the abrasion of the first-stage piston rod or the second-stage piston rod to the inner side of the corresponding first-stage guide sliding sleeve end cover or the second-stage guide sliding sleeve end cover can be effectively reduced, thereby being beneficial to the mutual matching between the internal structures of the cylinder body, simultaneously achieving the purpose of blocking the dust introduced from the outside by the sealing steel ring, further ensuring the dustproof performance of the equipment, the sealing steel ring can also achieve the purpose of guiding and limiting the corresponding first-stage piston rod or the corresponding second-stage piston rod, so that the stability of the first-stage piston rod or the second-stage piston rod during leading-out or contraction is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic view of the dust collecting ring of the present invention.
In the figure: 1 one-level cylinder barrel, 2 cylinder bottoms, 3 one-level guide sliding sleeve end covers, 4 one-level piston rods, 5 one-level pistons, 6 two-level piston rods, 7 two-level pistons, 8 two-level guide sliding sleeve end covers, 9 front connections, 10 oil ports, 11 mounting discs, 12 annular accommodating grooves, 13 oil filler holes, 14 sealing steel rings, 15 dust collecting rings, 16 two-level cylinder barrels, 17 limiting rings and 18 dust collecting grooves.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a dustproof multistage telescopic hydraulic cylinder comprises a primary cylinder barrel 1, a cylinder bottom 2, a primary guide sliding sleeve end cover 3, a primary piston rod 4, a secondary cylinder barrel 16, a primary piston 5, a secondary piston rod 6, a secondary piston 7, a limiting ring 17, a secondary guide sliding sleeve end cover 8, a front connection 9 and an oil port 10, wherein the cylinder bottom 2 is fixedly arranged at the port of the primary cylinder barrel 1, the primary guide sliding sleeve end cover 3 is arranged at the other port of the primary cylinder barrel 1, the primary piston rod 4 is arranged at the inner side of the primary cylinder barrel 1, one end of the primary piston rod 4 is connected with the primary piston 5, the other end of the primary piston rod 4 penetrates through the primary guide sliding sleeve end cover 3 and extends to the outer side of the primary cylinder barrel 1, the secondary cylinder barrel 16 is arranged at the inner side of the primary piston rod 4, the limiting ring 17 is clamped between the secondary cylinder barrel 16 and the, the joint of the secondary guide sliding sleeve end cover 8 and the primary piston rod 4 is in parallel and level joint, the primary piston rod 4 is sleeved with a steel wire check ring at the inner side of the primary cylinder barrel 1, the steel wire check ring and a limit ring 17 limit the primary piston rod 4, the primary piston rod 4 is prevented from being guided out of the primary cylinder barrel 1 through transition displacement, the secondary guide sliding sleeve end cover 8 is installed at the other end of the primary piston rod 4, one end of the secondary cylinder barrel 16 is butted with the inner side of the secondary guide sliding sleeve end cover 8, the other end of the secondary cylinder barrel 16 is spliced at the inner side of the primary piston 5, the secondary piston 7 is fixedly installed at one end of the secondary piston rod 6, the other end of the secondary piston rod 6 penetrates through the secondary guide sliding sleeve end cover 8 and extends to the outer side of the primary piston rod 4, the other end of the secondary piston, the first-stage piston rod 4 is provided with an oil transmission hole.
Equal fixed mounting in port department of one-level direction sliding sleeve end cover 3 and second grade direction sliding sleeve end cover 8 has the mounting disc 11 of looks adaptation, the annular groove 12 of accomodating has all been seted up to the inboard of two mounting discs 11, oil filler point 13 has been seted up in the side of keeping away from corresponding one-level direction sliding sleeve end cover 3 and second grade direction sliding sleeve end cover 8 to two mounting discs 11, two oil filler point 13 are accomodate the groove 12 with corresponding annular and are linked together, the sealing plug is all installed to the port department of two oil filler point 13, the equal fixed mounting of annular inside wall of two mounting discs 11 has sealed steel ring 14, the annular inside wall of two sealed steel ring 14 contacts with the surface of corresponding second grade direction sliding sleeve end cover 8 and second grade piston rod 6 respectively, two the cooperation between the surface of sealed steel ring 14 and corresponding second grade direction sliding sleeve end cover 8 and second grade piston, Two installation discs 11 and the corresponding first-stage guide sliding sleeve end cover 3 or the second-stage guide sliding sleeve end cover 8 form a closed space, the closed space is communicated with the corresponding annular containing groove 12, when the device is used, lubricating oil is injected into the closed space through the oil injection hole 13 and the annular containing groove 12, the fit abrasion between device structures is reduced, the side end surfaces of the two installation discs 11 are respectively provided with an installation groove, the inner sides of the two installation grooves are respectively fixedly provided with a dust collecting ring 15 which is matched with each other through screws, the annular inner sides of the two dust collecting rings 15 are respectively contacted with the surfaces of the corresponding second-stage guide sliding sleeve end cover 8 and the second-stage piston rod 6, the side surfaces of the two dust collecting rings 15 are respectively provided with a dust collecting groove 18, the dust collecting grooves 18 are arranged at the inner side of the end surface of the dust collecting ring 15, the cross section of the dust collecting grooves 18 is in, the surfaces of the dust collecting ring 15 and the sealing steel ring 14 are smooth surfaces, so that the friction loss of the corresponding first-stage piston rod 4 or second-stage piston rod 6 during stretching is reduced, and the stable matching use between mechanisms is ensured.
The working principle is as follows: when the device is used, the two oil ports 10 are respectively connected with the oil tank to conduct oil guiding, when the primary piston rod 4 or the secondary piston rod 6 conducts telescopic operation, when the primary piston rod 4 or the secondary piston rod 6 contracts, dust adhered to the surface of the primary piston rod 4 or the secondary piston rod 6 can be blocked by the port wall edge of the dust collecting ring 15, the dust blocked by the dust collecting ring 15 can be stirred into the dust collecting groove 18 under the contraction pushing of the subsequent primary piston rod 4 or the secondary piston rod 6, so that dust and impurities can be collected and accumulated in the dust collecting groove 18, lubricating oil is injected into the annular accommodating groove 12 through the oil filling hole 13, so that the lubricating oil is injected into a closed space formed between the sealing steel ring 14 and the mounting disc 11, the lubricating oil is in contact lubrication with the surface of the corresponding primary piston rod 4 or the secondary piston rod 6, and the first-stage piston rod 4 or the second-stage piston rod 6 can be effectively reduced to conduct contact lubrication on Thereby facilitating the mutual cooperation between the internal structures of the cylinder bodies.
The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, and the supply also belongs to the common general knowledge in this field, and the utility model discloses mainly used protects mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a multistage flexible pneumatic cylinder of dust-protection, includes one-level cylinder, the cylinder bottom, one-level direction sliding sleeve end cover, one-level piston rod, second grade cylinder, one-level piston, second grade piston rod, second grade piston, spacing ring, second grade direction sliding sleeve end cover, preceding connection and hydraulic fluid port, its characterized in that: the cylinder bottom is fixedly arranged at the port of the first-stage cylinder barrel, the first-stage guide sliding sleeve end cover is arranged at the other port of the first-stage cylinder barrel, the first-stage piston rod is arranged at the inner side of the first-stage cylinder barrel, one end of the first-stage piston rod is connected with the first-stage piston, the other end of the first-stage piston rod penetrates through the first-stage guide sliding sleeve end cover and extends to the outer side of the first-stage cylinder barrel, the second-stage cylinder barrel is arranged at the inner side of the first-stage piston rod, the limiting ring is clamped between the second-stage cylinder barrel and the first-stage piston rod, the second-stage piston rod is arranged at the inner side of the second-stage cylinder barrel, the second-stage guide sliding sleeve end cover is arranged at the other end of the first-stage piston rod, one end, the other end of the second-stage piston rod is connected with the front connection, a flange plate is fixedly mounted on the first-stage cylinder barrel, oil ports are formed in the cylinder body and the first-stage cylinder barrel, and an oil delivery hole is formed in the first-stage piston rod;
the end openings of the first-stage guide sliding sleeve end cover and the second-stage guide sliding sleeve end cover are fixedly provided with adaptive mounting discs, the inner sides of the two mounting discs are respectively provided with an annular accommodating groove, the side surfaces of the two mounting discs far away from the corresponding first-stage guide sliding sleeve end cover and the second-stage guide sliding sleeve end cover are provided with oil filling holes, the two oil filling holes are communicated with the corresponding annular accommodating grooves, the end openings of the two oil filling holes are respectively provided with a sealing plug, the annular inner side walls of the two mounting discs are respectively and fixedly provided with a sealing steel ring, the annular inner side walls of the two sealing steel rings are respectively contacted with the surfaces of the corresponding second-stage guide sliding sleeve end cover and the second-stage piston rod, the side end surfaces of the two mounting discs are respectively provided with a mounting groove, the inner sides of the two mounting grooves are respectively and fixedly provided with adaptive, the side surfaces of the two dust collecting rings are provided with dust collecting grooves.
2. The dustproof multistage telescopic hydraulic cylinder according to claim 1, characterized in that: the second grade direction sliding sleeve end cover links up for the parallel and level with the linking department of one-level piston rod, and one-level piston rod is equipped with the steel wire retaining ring at the inboard cover of one-level cylinder.
3. The dustproof multistage telescopic hydraulic cylinder according to claim 1, characterized in that: the matching relationship between the two sealing steel rings and the surfaces of the corresponding secondary guide sliding sleeve end cover and the secondary piston rod is clearance fit.
4. The dustproof multistage telescopic hydraulic cylinder according to claim 1, characterized in that: and a closed space is formed between the two sealing steel rings, the two mounting discs and the corresponding first-stage guide sliding sleeve end cover or the second-stage guide sliding sleeve end cover, and the closed space is communicated with the corresponding annular accommodating groove.
5. The dustproof multistage telescopic hydraulic cylinder according to claim 1, characterized in that: the dust collecting groove is formed in the inner side of the end face of the dust collecting ring, and the cross section of the dust collecting groove is in an inwards concave arc shape.
6. The dustproof multistage telescopic hydraulic cylinder according to claim 1, characterized in that: the dust collecting ring can be a stainless steel metal ring, and the surfaces of the dust collecting ring and the sealing steel ring are smooth surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921894297.5U CN211231107U (en) | 2019-11-05 | 2019-11-05 | Dustproof multistage telescopic hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921894297.5U CN211231107U (en) | 2019-11-05 | 2019-11-05 | Dustproof multistage telescopic hydraulic cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN211231107U true CN211231107U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921894297.5U Active CN211231107U (en) | 2019-11-05 | 2019-11-05 | Dustproof multistage telescopic hydraulic cylinder |
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| CN (1) | CN211231107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856984A (en) * | 2022-02-23 | 2023-10-10 | 杨柯 | Extendable hydraulic support |
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2019
- 2019-11-05 CN CN201921894297.5U patent/CN211231107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856984A (en) * | 2022-02-23 | 2023-10-10 | 杨柯 | Extendable hydraulic support |
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