CN114001067B - Hexagonal nut locking device for adjustable hydraulic cylinder - Google Patents
Hexagonal nut locking device for adjustable hydraulic cylinder Download PDFInfo
- Publication number
- CN114001067B CN114001067B CN202111373268.6A CN202111373268A CN114001067B CN 114001067 B CN114001067 B CN 114001067B CN 202111373268 A CN202111373268 A CN 202111373268A CN 114001067 B CN114001067 B CN 114001067B
- Authority
- CN
- China
- Prior art keywords
- sliding
- connecting seat
- main board
- sliding block
- pin shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0894—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with other than axial keys, e.g. diametral pins, cotter pins and no other radial clamping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a hexagonal nut locking device for an adjustable hydraulic cylinder, and belongs to the hydraulic cylinder assembly technology. Comprises a connecting seat and two V-shaped moment heads; the pin shaft is fixed at the rear side of the connecting seat, and the sliding groove is formed in the rear side surface of the connecting seat; the V-shaped moment head comprises a main board with a V-shaped bayonet, and sliding holes I are formed in two ends of the main board; a sliding block is fixed in the middle of the main board, and a sliding hole II is formed in the middle of the sliding block; the sliding block is slidably arranged in the connecting seat sliding groove, and the sliding hole II is slidably arranged on the connecting seat pin shaft; the pin shaft is provided with threads and is provided with an anti-drop nut I; a bolt is arranged between the two main board sliding holes I, and an anti-drop nut II is arranged at the end part of the bolt; the pin shaft is sleeved with a supporting spring. The invention adopts two split V-shaped moment heads, and can change the clamping space to adapt to hexagonal nuts with different sizes; the pin shaft and chute double-guide structure and the spring elastic supporting structure are adopted, so that the application stability of the device is ensured; the connecting seat adopts a clearance fit connection and anti-drop structure, so that the torque transmission is reliable and the universality is good.
Description
Technical Field
The invention relates to a hydraulic cylinder assembly technology, in particular to a hexagonal nut locking device for an adjustable hydraulic cylinder.
Background
The piston of the hydraulic cylinder is anti-loose by adopting a hexagonal nut, because the specifications of the hydraulic cylinder are different, the sizes of the hexagonal nuts are also different to ensure the anti-loose reliability, so the assembly of the piston rod of the hydraulic cylinder is required to be matched with a special tool, and if the nuts adopt forgings and non-machined parts, the external dimension errors are larger, so that the assembly is greatly troublesome no matter how many tools are and the rationality of the hexagonal dimension design in the special tool for assembly is brought to the assembly, so the problem is solved, and the problem is the key of the assembly of the piston rod of the hydraulic cylinder
Disclosure of Invention
In order to solve the technical problems, the invention provides a hexagonal nut locking device for an adjustable hydraulic cylinder.
The invention is realized by the following technical scheme: the hexagonal nut locking device for the adjustable hydraulic cylinder comprises a connecting seat and two symmetrically arranged V-shaped moment heads;
Two symmetrically arranged pin shafts are fixed on the rear side of the connecting seat, and sliding grooves which are in one-to-one correspondence with the pin shafts are formed in the rear side surface of the connecting seat;
The V-shaped moment head comprises a main board with a V-shaped bayonet, and sliding holes I are formed in two ends of the main board; a sliding block is fixedly connected in the middle of the main board, and a sliding hole II is formed in the middle of the sliding block;
The sliding block of the V-shaped moment head is slidably arranged in the sliding groove on the rear side surface of the connecting seat, and the sliding hole II on the sliding block is slidably arranged on the pin shaft on the rear side of the connecting seat; the pin shaft is provided with threads, and the pin shaft is provided with an anti-drop nut I for limiting a sliding block of the V-shaped moment head through threaded connection;
a bolt is arranged between the sliding holes I of the two opposite main boards, and the end part of the bolt is provided with a drop-proof nut II for limiting the main board of the V-shaped moment head; the bolts are sleeved with supporting springs, and two ends of each supporting spring are supported at the end parts of the main plate of the V-shaped moment head;
the sliding hole II of the sliding block is in clearance fit with the pin shaft, and the clearance is a; the sliding block is in clearance fit with the sliding groove of the connecting seat, and the clearance is b; the sliding hole I of the main board is in clearance fit with the bolt, and the clearance is c; the gap c is larger than the gap b, which is larger than the gap a.
It is further: and a counter bore is formed in one end, close to the supporting spring, of the main board sliding hole I, and the end part of the supporting spring is positioned in the counter bore at one end of the sliding hole I.
The front shaft center of the connecting seat is fixedly provided with a sleeve, the end face of the sleeve is provided with stress teeth, and the circumferential surface of the sleeve is provided with a pin hole.
The output end of the moment machine is matched and inserted into the sleeve and matched with the stressed teeth, and the anti-falling screw is inserted into the pin hole and the output end of the moment machine; the fit clearance between the anti-drop screw and the pin hole is larger than the fit clearance between the output end of the moment machine and the stressed tooth.
Compared with the prior art, the invention has the beneficial effects that:
1. The two split V-shaped moment heads are adopted, and the clamping space can be changed to adapt to hexagonal nuts with different sizes through sliding thread transmission, so that the universal nut has good universality and self-adaptability;
2. parts can be quickly disassembled, and the use and maintenance performance are good;
3. the pin shaft and chute double-guide structure and the spring elastic supporting structure are adopted, so that the application stability of the device is ensured; the connecting seat adopts clearance fit connection and anti-drop structure, and transmission moment is reliable, connects the anti-drop reliably, and anti-drop screw receives the high shear force to destroy inefficacy when avoiding the operation, can directly adorn ordinary moment machine, has good commonality.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic perspective view of a connector;
FIG. 4 is a schematic view of a V-shaped torque head configuration;
in the figure: 1. a V-shaped torque head; 1-1, a V-shaped bayonet; 1-2, a main board; 1-3, a sliding hole I; 1-4, a sliding block; 1-5, sliding hole II; 2. a bolt; 3. a support spring; 4. a connecting seat; 4-1, a pin shaft; 4-2, sliding grooves; 4-3, sleeve; 4-4, stress teeth; 4-5, pin holes; 5. a drop-proof nut I; 6. and a drop-proof nut II.
Detailed Description
The following is a specific embodiment of the present invention, which is further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, a hexagonal nut locking device for an adjustable hydraulic cylinder includes a connecting seat 4, and two symmetrically arranged V-shaped moment heads 1.
Two symmetrically arranged pin shafts 4-1 are fixed on the rear side of the connecting seat 4, sliding grooves 4-2 which are in one-to-one correspondence with the pin shafts 4-1 are formed in the rear side face of the connecting seat 4, and the pin shafts 4-1 of the sliding grooves 4-2 are axially opposite. The front side shaft center of the connecting seat 4 is fixedly provided with a sleeve 4-3, two symmetrical stress teeth 4-4 are arranged on the end face of the sleeve 4-3, and a through pin hole 4-5 is arranged on the circumferential surface of the sleeve 4-3.
The V-shaped moment head 1 comprises a main board 1-2 with a V-shaped bayonet 1-1, and sliding holes I1-3 are formed in two ends of the main board 1-2. The middle of the main board 1-2 is fixedly connected with a sliding block 1-4, and a sliding hole II 1-5 is formed in the middle of the sliding block 1-4. The sliding block 1-4 of the V-shaped moment head 1 is slidably arranged in the sliding groove 4-2 on the rear side surface of the connecting seat 4, and the sliding hole II 1-5 on the sliding block 1-4 is slidably arranged on the pin shaft 4-1 on the rear side of the connecting seat 4. The pin shaft 4-1 is provided with threads, the pin shaft 4-1 is provided with an anti-drop nut I5 through threaded connection, and the anti-drop nut I5 is used for limiting the sliding block 1-4 of the V-shaped moment head 1 so as to adapt to hexagonal nuts with different sizes.
The main boards 1-2 of the two V-shaped moment heads 1 are opposite, a bolt 2 is arranged between the sliding holes I1-3 of the opposite main boards 1-2, an anti-drop nut II 6 is arranged at the end part of the bolt 2, and the bolt 2 and the anti-drop nut II 6 are matched to pull the two opposite V-shaped moment heads 1. The bolt 2 is sleeved with a supporting spring 3, a counter bore is formed in one end, close to the supporting spring 3, of the sliding hole I1-3 of the main board 1-2, and the end of the supporting spring 3 is located in the counter bore at one end of the sliding hole I1-3. The V-shaped moment heads 1 on two sides are supported by the supporting springs 3, so that the V-shaped moment heads are convenient to be matched with the hexagonal nuts.
When the locking device is used, the output end of the moment machine is matched and inserted into the sleeve 4-3 and matched with the stressed teeth 4-4, and the stressed teeth 4-4 are pushed by the rotation of the output end of the moment machine, so that the whole locking device is driven to rotate. The anti-drop screw is inserted into the pin hole 4-5 and the output end of the moment machine. The fit clearance between the anti-drop screw and the pin hole 4-5 is larger than the fit clearance between the output end of the moment machine and the stressed tooth 4-4. When the moment machine drives the connecting seat 4, no stress is applied between the anti-falling screw and the pin hole 4-5, so that the phenomenon that a large shearing force is generated when working moment is transmitted to the anti-falling screw to damage the structure is avoided.
Working principle:
the connecting seat 4 is connected with a moment machine, the output end of the moment machine is in an embedded clearance fit structure with the sleeve 4-3 of the connecting seat 4, and after the connection, the connecting seat 4 is prevented from axially falling off by inserting an anti-falling screw into the pin hole 4-5 of the sleeve 4-3;
the supporting springs 3 are used for supporting the V-shaped moment heads 1 on two sides, and the two V-shaped moment heads 1 are matched with the side surfaces of the hexagonal nut;
The sliding hole II 1-5 of the sliding block 1-4 is in clearance fit with the pin shaft 4-1, and the clearance is a; the sliding block 1-4 is in clearance fit with the sliding groove 4-2 of the connecting seat 4, and the clearance is b; the sliding hole I1-3 of the main board 1-2 is in clearance fit with the bolt 2, and the clearance is c; gap c is greater than gap b, which is greater than gap a; during operation, the connecting seat 4 transmits torque, the pin shaft 4-1 of the connecting seat 4 mainly overcomes bending moment, and the bolt 2 mainly overcomes tensile force.
The locking device for the hexagonal nut solves the problems of poor universality and poor self-applicability of the locking device for connecting the piston rod and the piston by the hydraulic cylinder, and the clamping space is adjustable by the split V-shaped moment head clamping mechanism so as to adapt to the hexagonal nuts with different sizes and meet the functions of guiding, positioning and force transmission.
Claims (4)
1. The utility model provides an adjustable hexagonal nut locking device for pneumatic cylinder, includes connecting seat (4), its characterized in that: the device also comprises two symmetrically arranged V-shaped moment heads (1);
Two symmetrically arranged pin shafts (4-1) are fixed on the rear side of the connecting seat (4), and sliding grooves (4-2) which are in one-to-one correspondence with the pin shafts (4-1) are formed in the rear side surface of the connecting seat (4);
The V-shaped moment head (1) comprises a main board (1-2) with a V-shaped bayonet (1-1), and sliding holes I (1-3) are formed in two ends of the main board (1-2); a sliding block (1-4) is fixedly connected to the middle of the main board (1-2), and a sliding hole II (1-5) is formed in the middle of the sliding block (1-4);
The sliding block (1-4) of the V-shaped moment head (1) is slidably arranged in the sliding groove (4-2) on the rear side surface of the connecting seat (4), and the sliding hole II (1-5) on the sliding block (1-4) is slidably arranged on the pin shaft (4-1) on the rear side of the connecting seat (4); threads are formed on the pin shaft (4-1), and the pin shaft (4-1) is provided with an anti-drop nut I (5) used for limiting a sliding block (1-4) of the V-shaped moment head (1) through threaded connection;
A bolt (2) is arranged between the sliding holes I (1-3) of the two opposite main boards (1-2), and the end part of the bolt (2) is provided with an anti-drop nut II (6) for limiting the main board (1-2) of the V-shaped moment head (1); a supporting spring (3) is sleeved on the bolt (2), and two ends of the supporting spring (3) are supported at the end parts of the main plate (1-2) of the V-shaped moment head (1);
the sliding hole II (1-5) of the sliding block (1-4) is in clearance fit with the pin shaft (4-1), and the clearance is a; the sliding block (1-4) is in clearance fit with the sliding groove (4-2) of the connecting seat (4), and the clearance is b; the sliding hole I (1-3) of the main board (1-2) is in clearance fit with the bolt (2), and the clearance is c; the gap c is larger than the gap b, which is larger than the gap a.
2. The hexagonal nut lock for an adjustable hydraulic cylinder according to claim 1, wherein: a counter bore is formed in one end, close to the supporting spring (3), of the sliding hole I (1-3) of the main board (1-2), and the end portion of the supporting spring (3) is located in the counter bore in one end of the sliding hole I (1-3).
3. The hexagonal nut lock for an adjustable hydraulic cylinder according to claim 1, wherein: the front axle center of the connecting seat (4) is fixedly provided with a sleeve (4-3), the end face of the sleeve (4-3) is provided with stress teeth (4-4), and the circumferential surface of the sleeve (4-3) is provided with a pin hole (4-5).
4. A hexagonal nut lock for an adjustable hydraulic cylinder according to claim 3, characterized in that: the output end of the moment machine is matched and inserted into the sleeve (4-3) and matched with the stressed teeth (4-4), and the anti-drop screw is inserted into the pin hole (4-5) and the output end of the moment machine; the fit clearance between the anti-drop screw and the pin hole (4-5) is larger than the fit clearance between the output end of the moment machine and the stressed tooth (4-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373268.6A CN114001067B (en) | 2021-11-19 | 2021-11-19 | Hexagonal nut locking device for adjustable hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373268.6A CN114001067B (en) | 2021-11-19 | 2021-11-19 | Hexagonal nut locking device for adjustable hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114001067A CN114001067A (en) | 2022-02-01 |
| CN114001067B true CN114001067B (en) | 2024-05-14 |
Family
ID=79929635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111373268.6A Active CN114001067B (en) | 2021-11-19 | 2021-11-19 | Hexagonal nut locking device for adjustable hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001067B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1037681A (en) * | 1996-07-22 | 1998-02-10 | Komatsu Ltd | Screw conveyor screw connection device |
| DE20212656U1 (en) * | 2002-06-13 | 2003-03-13 | Fairchild Fasteners Europe - Camloc GmbH, 65779 Kelkheim | Unit of threaded bolt and nut, comprising securing device with return spring and several locking elements |
| CN2677428Y (en) * | 2003-06-03 | 2005-02-09 | 上海铁路局工务处 | Large-drag non-porous clamp device for rail joint |
| CN2921414Y (en) * | 2006-06-05 | 2007-07-11 | 吴健 | Locking bolt |
| CN205423477U (en) * | 2016-03-18 | 2016-08-03 | 中铁建电气化局集团轨道交通器材有限公司 | Auto -lock locknut |
| CN209477658U (en) * | 2019-01-22 | 2019-10-11 | 湖北神电汽车电机有限公司 | A kind of six square toes adjustment cage guiding press-loading apparatus |
| CN209838829U (en) * | 2019-05-08 | 2019-12-24 | 徐州徐工液压件有限公司 | Set screw offset type nut anti-loose structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210324899A1 (en) * | 2019-12-09 | 2021-10-21 | Albert Aguilar | Self-actuating fastener assemblies |
-
2021
- 2021-11-19 CN CN202111373268.6A patent/CN114001067B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1037681A (en) * | 1996-07-22 | 1998-02-10 | Komatsu Ltd | Screw conveyor screw connection device |
| DE20212656U1 (en) * | 2002-06-13 | 2003-03-13 | Fairchild Fasteners Europe - Camloc GmbH, 65779 Kelkheim | Unit of threaded bolt and nut, comprising securing device with return spring and several locking elements |
| CN2677428Y (en) * | 2003-06-03 | 2005-02-09 | 上海铁路局工务处 | Large-drag non-porous clamp device for rail joint |
| CN2921414Y (en) * | 2006-06-05 | 2007-07-11 | 吴健 | Locking bolt |
| CN205423477U (en) * | 2016-03-18 | 2016-08-03 | 中铁建电气化局集团轨道交通器材有限公司 | Auto -lock locknut |
| CN209477658U (en) * | 2019-01-22 | 2019-10-11 | 湖北神电汽车电机有限公司 | A kind of six square toes adjustment cage guiding press-loading apparatus |
| CN209838829U (en) * | 2019-05-08 | 2019-12-24 | 徐州徐工液压件有限公司 | Set screw offset type nut anti-loose structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114001067A (en) | 2022-02-01 |
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