CN204186692U - The tight hydraulic jack of a kind of rotary self-locking - Google Patents
The tight hydraulic jack of a kind of rotary self-locking Download PDFInfo
- Publication number
- CN204186692U CN204186692U CN201420639167.8U CN201420639167U CN204186692U CN 204186692 U CN204186692 U CN 204186692U CN 201420639167 U CN201420639167 U CN 201420639167U CN 204186692 U CN204186692 U CN 204186692U
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- locking
- piston rod
- cylinder barrel
- piston
- end cap
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Abstract
The utility model belongs to technical field of hydraulic pressure, specifically disclose the tight hydraulic jack of a kind of rotary self-locking, it comprise be tightly connected successively transducing portion, tight lock part, execute the portion of revolving, transducing portion is built-in with first piston, first piston bar, the first cylinder barrel and the first hydraulic fluid port, tight lock part is built-in with locking device, the second piston rod, the second cylinder barrel and the second hydraulic fluid port and the 3rd hydraulic fluid port, executes the portion of revolving and is built-in with and executes cyclone, the 3rd piston rod and the 3rd cylinder barrel.The oil-feed of the utility model first hydraulic fluid port, piston rod stretches out oil cylinder, executes cyclone and forces piston rod to rotate in moving process, at oil cylinder stroke terminal, the 3rd hydraulic fluid port oil-feed, drives locking device latching ram bar, second hydraulic fluid port oil-feed, drives locking device to carry out solution locking operation.Structure of the present utility model simply, is easily processed, and cost is low.
Description
Technical field
The present invention relates to a kind of hydraulic pressure installation, particularly relate to a kind of piston rotatable tight hydraulic jack of a kind of rotary self-locking keeping its stroke state at the whole auto lock of stroke in telescopic process, belong to technical field of hydraulic pressure.
Background technique
Hydraulic jack is, in hydraulic pressure installation, hydraulic energy is converted to mechanical energy, realizes the actuator of straight reciprocating motion.In equipment application, usually require that oil lacks and reliably lock in any output services position, and long-time fixed position, and existing locking mode ensures with various descaling locking circuit.The locking mode of descaling locking circuit also exists leakage unavoidably, can not ensure the reliability of locking like this; And in some special applications, usually require that oil cylinder piston carries out small angle rotation at telescopic process and performs specific operation, and existing dovetail groove rotating machinery parts are many, structure is too complicated, be difficult to processing, application cost is high.For addressing this problem, the present invention designs the tight hydraulic jack of a kind of rotary self-locking keeping its stroke state at the whole auto lock of stroke that a kind of piston can carry out small angle rotation in telescopic process.
Summary of the invention
The object of the invention is for prior art Problems existing, provide a kind of piston can carry out the tight hydraulic jack of rotary self-locking keeping the simple cost of the structure of its stroke state low at the whole auto lock of stroke of small angle rotation in telescopic process.
Technological scheme of the present invention is to provide the tight hydraulic jack of a kind of rotary self-locking, and its designing points is, comprising:
Transducing portion 1, export for hydraulic energy being converted to to-and-fro motion, comprise the first oil cylinder body, first oil cylinder body is built-in with first piston 12 and first piston bar 13, described first piston bar 13 and first piston 12 are fixed and are placed in the first oil cylinder body, and the first oil cylinder body exterior is stretched out in one end of first piston bar 13;
Tight lock part 2, itself and transducing portion are tightly connected and keep its stroke state for locking cylinder, comprise the second oil cylinder body, second oil cylinder body is built-in with locking device 22, second piston rod 23, locking device 22 to be assemblied on the second piston rod 23 and to be positioned at the second oil cylinder body, and one end of the second piston rod 23 is fixedly connected with the other end of first piston bar 13;
Execute the portion of revolving 3, it is connected with tight lock part 2 and is used for piston rod rotation, comprise executing and revolve mechanism body, execute and revolve mechanism body and be built-in with and execute cyclone 32, the 3rd piston rod 33, executing cyclone 32 is assemblied on the 3rd piston rod 33, and one end of the 3rd piston rod 33 and the other end of the second piston rod 23 fix;
Described first piston bar 13, second piston rod 23 and the 3rd piston rod 33 are coaxially fixed.
The present invention also has the following technological scheme improved further.
Further, described first oil cylinder body also comprises one end that the first cylinder barrel 11 and the first end cap 14, first end cap 14 are arranged on the first cylinder barrel 11; Described first piston bar 13 and first piston 12 are fixed and are placed in the first cylinder barrel 11 inside, and the other end of first piston bar 13 is also connected with the first end cap 14 slipper seal through the first end cap 14 middle through-hole;
Further, described first cylinder barrel 11 and the first end cap 14 one-body molded, the first end cap 14 is provided with the first hydraulic fluid port 41.
Further, the inwall that described second oil cylinder body also comprises one end of the second cylinder barrel 21 and the second end cap 24, second cylinder barrel 21 is provided with the ring shaped step 211 matched with the second piston rod 23; The other end of described first cylinder barrel 11 and one end of the second cylinder barrel 21 adopt bolt to fix, and the other end of the second cylinder barrel 21 fixes the second end cap 24; One end of second piston rod 23 is fixedly connected with the other end of first piston bar 13, and the other end of the second piston rod 23 is also connected with the second end cap 24 slipper seal through the second end cap 24 middle through-hole; Locking device 22 to be enclosed within the second piston rod 23 and to be placed in the second cylinder barrel 21.
Further, described locking device 22 wraps spacing jacket casing 221, flap locking block 222 and latching ram 223, one end of described spacing jacket casing 221 and the ring shaped step 211 of the second cylinder barrel 21 adopt bolt to fix, one end of flap locking block 222 is inlaid in the positioning groove of spacing jacket casing 221 the other end, and latching ram 223 to be enclosed within the second piston rod 23 and to be positioned at the second cylinder barrel 21; One end of latching ram 223 and the second cylinder barrel 21 and the second piston rod 23 respectively slipper seal coordinate, the other end of latching ram 223 is provided with the locking post holes 2231 can holding flap locking block 222 that internal diameter is greater than the second piston rod 23 external diameter, and the tip inside of described locking cylindrical hole is provided with the locking wedge surface 2232 be made up of chamfering; Second piston rod 23 is provided with ring-like locking slot 231, and the end of ring-like locking slot 231 is provided with the locking slot wedge surface 232 be made up of chamfering; The other end of flap locking block 222 is provided with wedge surface 2222 in locking that the outer wedge surface 2221 of the locking that is made up of chamfering outside end face and inner side chamfering form, the locking wedge surface 2232 of locking outer wedge surface 2221 and latching ram 223 is slidably matched, and in locking, the conical surface of wedge surface 2222 and ring-like locking slot is slidably matched.
Further, described in execute and revolve one end that mechanism body also comprises the 3rd cylinder barrel 31 and the 3rd end cap the 34, three cylinder barrel 31 and adopt the other end of bolt and the second cylinder barrel 21 to fix, one end of the 3rd end cap 34 and the 3rd cylinder barrel 31 is fixed; Execute cyclone 32 to comprise being arranged on spiral chute 35 on the 3rd piston rod 33 surface and being fixed on by the 3rd end cap 34 and revolve protruding pin 36 with executing of matching of spiral chute 35 in the 3rd cylinder barrel 31.
Further, two described spiral chutes 35 are symmetrically distributed on the surface of the 3rd piston rod 33, and symmetric mode is Rotational Symmetry, and symmetric angle is 180 degree; Execute described in two and revolve protruding pin 36 and be symmetrically distributed in the 3rd cylinder barrel 31, described in execute and revolve protruding pin 36 and described spiral chute 35 matches respectively.
Further, the pitch of described spiral chute 35 is 110mm, and spiral angle is 90 degree.
Further, execute and revolve the middle part that protruding pin 36 is fixed on semicircular ring, and the convex shaft axis to semicircular ring described in.
Further, described first piston bar 13, second piston rod 23 and the 3rd piston rod 33 one-body molded.
Further, the two ends of the second cylinder barrel 21 are respectively equipped with the second hydraulic fluid port 42 and the 3rd hydraulic fluid port 43.
Beneficial effect
Rotate in oil cylinder stroke, by being revolved the Shi Xuan mechanism of protruding pin by executing in the helical groove arranged on the piston rod and cylinder barrel, make piston automatic rotation in moving process, the structure of this Shi Xuan mechanism is simple, and easily process, cost is low.
Auto lock, by the suit locking device be made up of position jacket casing, flap locking block and latching ram on the piston rod arranged, at oil cylinder stroke terminal auto lock oil cylinder, keeps oil cylinder stroke.
Accompanying drawing explanation
Fig. 1 cross-sectional schematic of the present invention.
Oil cylinder stroke in Fig. 2 Fig. 1 rotates schematic diagram.
In Fig. 3 Fig. 1, schematic diagram is looked on the flap locking block right side.
In Fig. 4 Fig. 2, A-A is to cross-sectional schematic.
In figure, 1-transducing portion, 12-first piston, 13-first piston bar, 14-first end cap, 2-tight lock part, 22-locking device, 23-second piston rod, 24-second end cap, 3-executes the portion of revolving, and 32-executes cyclone, 33-the 3rd piston rod, 34-the 3rd end cap, 35-spiral chute, 36-executes and revolves protruding pin, 37-half winding, 41-first hydraulic fluid port, 221-position jacket casing, 222-flap locking block, 223-latching ram, 2231-locks post holes, 2232-locks wedge surface, and 2221-locks outer wedge surface, wedge surface in 2222-locking.
Embodiment
In order to illustrate technological scheme of the present invention and technical purpose, below in conjunction with the drawings and the specific embodiments, the present invention is described further.
As shown in Figure 1-Figure 3, the tight hydraulic jack of a kind of rotary self-locking of the present invention, is characterized in that, comprise be tightly connected successively transducing portion 1, tight lock part 2, execute the portion of revolving 3.
Transducing portion 1, export for hydraulic energy being converted to to-and-fro motion, transducing portion 1 comprises the first oil cylinder body, and the first oil cylinder body is built-in with first piston 12, first piston bar 13, first cylinder barrel 11 and the first end cap 14.Described first piston bar 13 and first piston 12 sealing are fixed and are placed in the first cylinder barrel 11 inside, the other end of first piston bar 13 is also connected with the first end cap 14 slipper seal through the first end cap 14 middle through-hole, adopt the sealing of multistage dense seal ring, the first oil cylinder body exterior is stretched out in one end of first piston bar 13.First cylinder barrel 11 and the first end cap 14 one-body molded, the first end cap 14 is provided with the first hydraulic fluid port 41.
Tight lock part 2, itself and transducing portion 1 are tightly connected and keep its stroke state for locking cylinder, comprise the second oil cylinder body, second oil cylinder body is built-in with locking device 22, second piston rod 23, second cylinder barrel 21 and the second end cap 24, second cylinder barrel 21 on the inwall of the one end be connected with the first cylinder barrel, be provided with the ring shaped step 211 matched with the second piston rod 23, fit system is Spielpassung.The other end of described first cylinder barrel 11 and one end of the second cylinder barrel 21 adopt bolt to fix, and the other end of the second cylinder barrel 21 adopts bolt to fix the second end cap 24; One end of second piston rod 23 is fixedly connected with the other end of first piston bar 13, and the other end of the second piston rod 23 is also connected with the second end cap 24 slipper seal through the second end cap 24 middle through-hole, adopts the sealing of multistage dense seal ring; Locking device 22 to be enclosed within the second piston rod 23 and to be placed in the second cylinder barrel 21.Second cylinder barrel 21 is respectively equipped with the second hydraulic fluid port 42 for unlocking locking device 22 and lock and the 3rd hydraulic fluid port 43.
Execute the portion of revolving 3, it is connected with tight lock part 2 and is used for piston rod and rotates, and comprises executing and revolves mechanism body, executes to revolve mechanism body and be built-in with and execute cyclone 32, the 3rd piston rod 33, the 3rd cylinder barrel 31 and the 3rd end cap 34.One end of 3rd cylinder barrel 31 adopts the other end of bolt and the second cylinder barrel 21 to fix, and one end of the 3rd end cap 34 and the 3rd cylinder barrel 31 adopts bolt to fix.Execute cyclone 32 to comprise being arranged on spiral chute 35 on the 3rd piston rod 33 surface and being fixed on by the 3rd end cap 34 and revolve protruding pin 36 with executing of matching of spiral chute 35 in the 3rd cylinder barrel 31, further, two spiral chutes 35 are distributed on the outer surface of the 3rd piston rod 33 symmetrically, symmetric mode is Rotational Symmetry, and symmetric angle is 180 degree; In this example preferentially, the pitch of spiral chute 35 is 110mm, and spiral angle is 90 degree.Execute and revolve the middle part that protruding pin 36 is fixed on semicircular ring, the convex shaft axis to semicircular ring of protruding pin, two are fixed on executing of the middle part of semicircular ring and revolve protruding pin 36 and be symmetrically distributed in the 3rd cylinder barrel 31, and are fixed by the 3rd end cap 34.
Described first piston bar 13, second piston rod 23 and the 3rd piston rod 33 are coaxially fixed, and first piston bar 13, second piston rod 23 and the 3rd piston rod 33 are formed in one, and may also be to be separated.
Wherein, described locking device 22 wraps spacing jacket casing 221, flap locking block 222 and latching ram 223, one end of described spacing jacket casing 221 and the ring shaped step 211 of the second cylinder barrel 21 adopt bolt to fix, flap locking block 222 is made up of the locking block of four (also can two, three, more than the five) separation that shape is identical, one end of flap locking block 222 is inlaid in the positioning groove of spacing jacket casing 221 the other end, and latching ram 223 to be sleeved on the second piston rod 23 and to be positioned at the second cylinder barrel 21; One end of latching ram 223 and the second cylinder barrel 21 and the second piston rod 23 respectively slipper seal coordinate, adopt the sealing of multistage dense seal ring, the other end of latching ram 223 is provided with the locking post holes 2231 can holding (during locking state) flap locking block 222 that internal diameter is greater than the second piston rod 23 external diameter, and the tip inside of described locking post holes 2231 is provided with the locking wedge surface 2232 be made up of chamfering; Second piston rod 23 is provided with ring-like locking slot 231, and the end of ring-like locking slot 231 is provided with the locking slot wedge surface 232 be made up of chamfering.The other end of flap locking block 222 is provided with wedge surface 2222 in locking that inside the outer wedge surface 2221 of the locking that is made up of chamfering outside end face and end face, chamfering is formed, the locking wedge surface 2232 of locking outer wedge surface 2221 and latching ram 223 is slidably matched, and in locking, the locking slot wedge surface 232 of wedge surface 2222 and ring-like locking slot 231 is slidably matched.
The present invention, in use, the first hydraulic fluid port oil-feed, oil cylinder piston carries out stroke operation, and its piston rod stretches out oil cylinder, is fixed on executing in the 3rd cylinder barrel and revolves protruding pin and arrange spiral chute on the piston rod and act on mutually, form the torsional moment acted on piston rod, force piston rod to rotate.At oil cylinder stroke terminal, the 3rd hydraulic fluid port oil-feed, the motion of compressing latching ram, latching ram is pressed into flap locking block in the ring-like locking slot on piston rod by wedge surface extruding, and now the 3rd hydraulic fluid port stops oiling, locks oil cylinder.Second hydraulic fluid port oil-feed, latching ram reversing motion, piston rod reversing motion, the locking slot wedge surface extruding flap locking block on piston rod, carries out solution locking operation.
Relative to prior art, have and bright there is following progressive:
Rotate in oil cylinder stroke, by being revolved the Shi Xuan mechanism of protruding pin by executing in the helical groove arranged on the piston rod and cylinder barrel, make piston automatic rotation in moving process, the structure of this Shi Xuan mechanism is simple, and easily process, cost is low.
Auto lock, by the suit locking device be made up of position jacket casing, flap locking block and latching ram on the piston rod arranged, at oil cylinder stroke terminal auto lock oil cylinder, keeps oil cylinder stroke.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and application claims protection domain is defined by appending claims, specification and equivalent thereof.
Claims (10)
1. the tight hydraulic jack of rotary self-locking, is characterized in that, comprising:
Transducing portion (1), export for hydraulic energy being converted to to-and-fro motion, comprise the first oil cylinder body, first oil cylinder body is built-in with first piston (12) and first piston bar (13), described first piston bar (13) and first piston (12) are fixed and are placed in the first oil cylinder body, and the first oil cylinder body exterior is stretched out in one end of first piston bar (13);
Tight lock part (2), itself and transducing portion are tightly connected and keep its stroke state for locking cylinder, comprise the second oil cylinder body, second oil cylinder body is built-in with locking device (22), the second piston rod (23), locking device (22) is assemblied in the second piston rod (23) and goes up and be positioned at the second oil cylinder body, and one end of the second piston rod (23) is fixedly connected with the other end of first piston bar (13);
Execute the portion of revolving (3), it is connected with tight lock part (2) and is used for piston rod rotation, comprise executing and revolve mechanism body, execute and revolve mechanism body and be built-in with and execute cyclone (32), the 3rd piston rod (33), executing cyclone (32) is assemblied on the 3rd piston rod (33), and one end of the 3rd piston rod (33) and the other end of the second piston rod (23) fix;
Described first piston bar (13), the second piston rod (23) and the 3rd piston rod (33) are coaxially fixed.
2. the tight hydraulic jack of a kind of rotary self-locking according to claim 1, is characterized in that: described first oil cylinder body also comprises the first cylinder barrel (11) and the first end cap (14), and the first end cap (14) is arranged on one end of the first cylinder barrel (11); Described first piston bar (13) and first piston (12) are fixed and are placed in the first cylinder barrel (11) inside, and the other end of first piston bar (13) is also connected with the first end cap (14) slipper seal through the first end cap (14) middle through-hole.
3. the tight hydraulic jack of a kind of rotary self-locking according to claim 2, is characterized in that: described first cylinder barrel (11) and the first end cap (14) one-body molded, the first end cap (14) is provided with the first hydraulic fluid port (41).
4. the tight hydraulic jack of a kind of rotary self-locking according to claim 3, is characterized in that: described second oil cylinder body also comprises the second cylinder barrel (21) and the second end cap (24), the inwall of one end of the second cylinder barrel (21) is provided with the ring shaped step (211) matched with the second piston rod (23); The other end of described first cylinder barrel (11) and one end of the second cylinder barrel (21) adopt bolt to fix, and the other end of the second cylinder barrel (21) fixes the second end cap (24); One end of second piston rod (23) is fixedly connected with the other end of first piston bar (13), and the other end of the second piston rod (23) is also connected with the second end cap (24) slipper seal through the second end cap (24) middle through-hole; Locking device (22) is enclosed within the second piston rod (23) and goes up and be placed in the second cylinder barrel (21), and the two ends of the second cylinder barrel (21) are respectively equipped with the second hydraulic fluid port (42) and the 3rd hydraulic fluid port (43).
5. the tight hydraulic jack of a kind of rotary self-locking according to claim 4, it is characterized in that: described locking device (22) wraps spacing jacket casing (221), flap locking block (222) and latching ram (223), one end of described spacing jacket casing (221) and the ring shaped step (211) of the second cylinder barrel (21) adopt bolt to fix, one end of flap locking block (222) is inlaid in the positioning groove of spacing jacket casing (221) the other end, and latching ram (223) is enclosed within the second piston rod (23) and goes up and be positioned at the second cylinder barrel (21); One end of latching ram (223) coordinates with the second cylinder barrel (21) and the slipper seal of the second piston rod (23) difference, the other end of latching ram (223) is provided with the locking post holes (2231) can holding flap locking block (222) that internal diameter is greater than the second piston rod (23) external diameter, and the tip inside of described locking cylindrical hole is provided with the locking wedge surface (2232) be made up of chamfering; Second piston rod (23) is provided with ring-like locking slot (231), and one end of ring-like locking slot (231) is provided with the locking slot wedge surface (232) be made up of chamfering; Wedge surface (2222) in the locking that the other end of flap locking block (222) is provided with the outer wedge surface (2221) of the locking that is made up of chamfering outside end face and inner side chamfering formation, the locking wedge surface (2232) of locking outer wedge surface (2221) and latching ram (223) is slidably matched, and in locking, the locking slot wedge surface (232) of wedge surface (2222) and ring-like locking slot (231) is slidably matched.
6. the tight hydraulic jack of a kind of rotary self-locking according to claim 4, it is characterized in that: described in execute and revolve mechanism body and also comprise the 3rd cylinder barrel (31) and the 3rd end cap (34), one end of 3rd cylinder barrel (31) adopts the other end of bolt and the second cylinder barrel (21) to fix, and one end of the 3rd end cap (34) and the 3rd cylinder barrel (31) is fixed; Execute cyclone (32) to comprise being arranged on spiral chute (35) on the 3rd piston rod (33) surface and being fixed on by the 3rd end cap (34) and revolve protruding pin (36) with executing of matching of spiral chute (35) in the 3rd cylinder barrel (31).
7. the tight hydraulic jack of a kind of rotary self-locking according to claim 6, it is characterized in that: two described spiral chutes (35) are symmetrically distributed on the surface of the 3rd piston rod (33), execute described in two and revolve protruding pin (36) and be symmetrically distributed in the 3rd cylinder barrel (31).
8. the tight hydraulic jack of a kind of rotary self-locking according to claim 7, is characterized in that: the pitch of described spiral chute (35) is 110mm, and spiral angle is 90 degree.
9. the tight hydraulic jack of a kind of rotary self-locking according to claim 7, is characterized in that: described in execute and revolve the middle part that protruding pin (36) is fixed on semicircular ring (37).
10. the tight hydraulic jack of a kind of rotary self-locking according to the arbitrary claim of claim 1-9, is characterized in that: described first piston bar (13), the second piston rod (23) and the 3rd piston rod (33) are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639167.8U CN204186692U (en) | 2014-10-31 | 2014-10-31 | The tight hydraulic jack of a kind of rotary self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639167.8U CN204186692U (en) | 2014-10-31 | 2014-10-31 | The tight hydraulic jack of a kind of rotary self-locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186692U true CN204186692U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420639167.8U Expired - Fee Related CN204186692U (en) | 2014-10-31 | 2014-10-31 | The tight hydraulic jack of a kind of rotary self-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358743A (en) * | 2014-10-31 | 2015-02-18 | 常州市腾田液压机械有限公司 | Rotation type self-locking hydraulic oil cylinder |
| CN106015160A (en) * | 2016-07-18 | 2016-10-12 | 天津优瑞纳斯液压机械有限公司 | Novel hydraulic cylinder with rotatable and lockable piston rod |
-
2014
- 2014-10-31 CN CN201420639167.8U patent/CN204186692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358743A (en) * | 2014-10-31 | 2015-02-18 | 常州市腾田液压机械有限公司 | Rotation type self-locking hydraulic oil cylinder |
| CN106015160A (en) * | 2016-07-18 | 2016-10-12 | 天津优瑞纳斯液压机械有限公司 | Novel hydraulic cylinder with rotatable and lockable piston rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20151031 |
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| EXPY | Termination of patent right or utility model |