CN112145499A - Hydraulic cylinder guide sleeve locking mechanism - Google Patents
Hydraulic cylinder guide sleeve locking mechanism Download PDFInfo
- Publication number
- CN112145499A CN112145499A CN202011076261.3A CN202011076261A CN112145499A CN 112145499 A CN112145499 A CN 112145499A CN 202011076261 A CN202011076261 A CN 202011076261A CN 112145499 A CN112145499 A CN 112145499A
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- circlip
- cylinder body
- locking mechanism
- opening
- 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.)
- Pending
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Classifications
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
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- 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
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- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention provides a guide sleeve locking mechanism of a hydraulic cylinder, wherein a circle of elastic retainer ring groove is arranged on the outer diameter of a cylinder body matched with a guide sleeve, and a counter bore is arranged in the elastic retainer ring groove; the uide bushing has a loudspeaker form opening with cylinder body complex lateral wall through, and loudspeaker form opening outside opening width is greater than inside opening width, installs a circlip in the circlip slot, and circlip's shape is for having the open-ended ring form, and circlip one end is equipped with the first bending foot of inside extension, and the other end is equipped with the second bending foot of outside extension, and first bending foot embedding counter bore, second bending foot inlays in the opening. The invention replaces the traditional threaded connection mode with the elastic retainer ring, not only greatly shortens the transverse structural size, but also reduces the size of the excircle of the guide sleeve compared with the oil cylinder with the same specification, simultaneously, the structure is simple, no additional auxiliary tool is needed during installation, and the maintenance convenience is greatly improved.
Description
Technical Field
The invention relates to the field of hydraulic cylinder manufacturing, in particular to a hydraulic cylinder guide sleeve locking mode.
Background
The hydraulic cylinder is an actuating element in a hydraulic transmission system, is an energy conversion device for converting hydraulic energy into mechanical energy, realizes reciprocating motion, and is widely applied to various mechanical equipment. The conventional hydraulic cylinder guide sleeve and the cylinder body are connected mainly in a thread or screw mode, and in some occasions with the characteristics, the conventional oil cylinder cannot be installed due to limited installation space.
Disclosure of Invention
The invention aims to provide a hydraulic cylinder guide sleeve locking mode aiming at the defects in the prior art so as to solve the problem that a conventional oil cylinder cannot meet the requirements.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a hydraulic cylinder guide sleeve locking mechanism is provided with a cylinder body, a guide sleeve and a piston rod, one end of the cylinder body is provided with a cover plate, the other end of the cylinder body is slidably arranged in a central sliding hole of the guide sleeve, the piston rod which axially slides is arranged in the cylinder body,
a circle of elastic retainer ring groove is arranged on the outer diameter of the cylinder body matched with the guide sleeve, and at least one counter bore which does not penetrate through the cylinder body is arranged in the elastic retainer ring groove;
a horn-shaped opening penetrates through the side wall of the guide sleeve matched with the cylinder body, the width of an external opening of the horn-shaped opening is larger than that of an internal opening,
install a circlip in the circlip slot, circlip's shape is for having the open-ended ring form, circlip one end is equipped with the first bending foot of inside extension, and the other end is equipped with the second bending foot of outside extension, the first foot embedding of buckling in the cylinder body counter bore, the second foot of buckling inlays in the opening and hug closely on one side of the open-ended lateral wall.
Furthermore, set screws are installed on the guide sleeve and the cylinder body, and the set screws penetrate through the side wall of the guide sleeve and are fixedly connected with the outer wall of the cylinder body.
Furthermore, the vertical section of the elastic retainer ring is rectangular.
Furthermore, the material of the elastic check ring is 65Mn spring steel.
Furthermore, the shape and the size of the opening of the counter bore are equivalent to those of the vertical section of the elastic retainer ring.
The invention adopts a simple design mode, replaces the traditional threaded connection mode with the elastic retainer ring, not only greatly shortens the transverse structural size, but also reduces the size of the excircle of the guide sleeve compared with the oil cylinder with the same specification, simultaneously has simple structure, does not need additional auxiliary tools during installation, and greatly improves the maintenance convenience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a side cross-sectional view of a hydraulic cylinder of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 shows a flared opening on one side of the guide sleeve;
FIG. 4 shows a side cross-sectional view of a portion of the guide sleeve;
FIG. 5 is a schematic view of a guide sleeve with a trumpet-shaped opening formed therethrough;
FIG. 6 is a schematic view of a ring of circlip grooves formed in the outer wall of the cylinder body and a counterbore formed in the circlip grooves;
FIG. 7 is a schematic view of a circlip with an open circular shape installed in a groove of the circlip;
fig. 8 is an expanded view of the circlip.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.
As shown in the figure, the invention provides a hydraulic cylinder guide sleeve locking mechanism, as shown in figure 1, a hydraulic cylinder is provided with a cylinder body 1, a guide sleeve 2 and a piston rod 4, one end of the cylinder body 1 is provided with a cover plate, the other end of the cylinder body is slidably arranged in a central sliding hole of the guide sleeve 2, and the cylinder body 1 is internally provided with the piston rod 4 which axially slides.
A circle of elastic retainer ring groove 6 is arranged on the outer diameter of the cylinder body 1 matched with the guide sleeve 2, and at least one sunk hole 10 which is concave and does not penetrate through the cylinder body 1 is arranged in the elastic retainer ring groove 6; the lateral wall of uide bushing 2 and 1 complex of cylinder body runs through and has a trumpet-shaped opening 7, the outside opening width of trumpet-shaped opening is greater than inside opening width, install a circlip 3 in circlip slot 6, circlip 3's shape is for having the open-ended ring form, 3 one end of circlip is equipped with the first bending foot 31 of inside extension, the other end is equipped with the second bending foot 32 of outside extension, first bending foot 31 imbeds in the cylinder body counter bore 10, second bending foot 32 inlays in opening 7 and hugs closely on one side lateral wall of opening 7.
In an alternative embodiment, a set screw 5 is installed on the guide sleeve 2 and the cylinder body 1, and the set screw 5 penetrates through the side wall of the guide sleeve 2 and is fixedly connected with the outer wall of the cylinder body 1.
In an alternative embodiment, the circlip 3 has a rectangular vertical cross-section, thereby increasing the contact area between the inner and outer rings of the circlip 3 and the circlip groove 6, so that the circlip 3 is not easy to be disengaged from the circlip groove 6. Further preferably, the shape and size of the opening of the counterbore 10 are equivalent to the shape and size of the vertical section of the elastic check ring 3, so that the first bending leg 31 of the elastic check ring 3 can be tightly clamped in the counterbore 10 and is not easy to fall off.
In an alternative embodiment, the material of the circlip 3 is 65Mn spring steel.
The principle of the invention is as follows: according to the invention, the elastic check ring groove 6 is arranged on the excircle of the cylinder body 1, the counter bore 10 is arranged in the elastic check ring groove 6, the penetrating arc-shaped opening 7 is arranged on the guide sleeve, one end of the elastic check ring 3 is fixed in the counter bore 10 on the outer diameter of the cylinder body 1 by rotating the guide sleeve during installation, then the elastic check ring 3 is installed in the elastic check ring groove 6 by rotating the guide sleeve 2, and after the installation is in place, the guide sleeve 2 and the cylinder body 1 are locked by the set screw 5, so that the elastic check ring is prevented from being separated due to the rotation of the guide sleeve in the use process of the hydraulic cylinder.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (5)
1. A hydraulic cylinder guide sleeve locking mechanism is provided with a cylinder body (1), a guide sleeve (2) and a piston rod (4), one end of the cylinder body (1) is provided with a cover plate, the other end of the cylinder body is slidably installed in a central sliding hole of the guide sleeve (2), the cylinder body (1) is internally provided with the piston rod (4) which axially slides, and the hydraulic cylinder guide sleeve locking mechanism is characterized in that,
a circle of elastic retainer ring grooves (6) are formed in the outer diameter of the cylinder body (1) matched with the guide sleeve (2), and at least one counter bore (10) which does not penetrate through the side wall of the cylinder body (1) is formed in each elastic retainer ring groove (6);
a horn-shaped opening (7) penetrates through the side wall of the guide sleeve (2) matched with the cylinder body (1), the width of an external opening of the horn-shaped opening is larger than that of an internal opening,
install a circlip (3) in circlip slot (6), the shape of circlip (3) is for having the open-ended ring form, circlip (3) one end is equipped with first bending foot (31) of inside extension, and the other end is equipped with second bending foot (32) of outside extension, first bending foot (31) embedding in counter bore (10), second bending foot (32) card is in opening (7).
2. A guide sleeve locking mechanism of a hydraulic cylinder as claimed in claim 1, characterized in that a set screw (5) is installed on the guide sleeve (2) and the cylinder body (1), and the set screw (5) passes through the side wall of the guide sleeve (2) and is fixedly connected with the outer wall of the cylinder body (1).
3. A cylinder guide sleeve locking mechanism according to claim 1, characterized in that the circlip (3) has a rectangular vertical cross-sectional shape.
4. A cylinder guide sleeve locking mechanism according to claim 3, characterized in that the circlip (3) is 65Mn spring steel.
5. A cylinder guide sleeve locking mechanism according to claim 3, characterized in that the shape and size of the opening of the counterbore (10) are comparable to the shape and size of the vertical cross-section of the circlip (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076261.3A CN112145499A (en) | 2020-10-10 | 2020-10-10 | Hydraulic cylinder guide sleeve locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076261.3A CN112145499A (en) | 2020-10-10 | 2020-10-10 | Hydraulic cylinder guide sleeve locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145499A true CN112145499A (en) | 2020-12-29 |
Family
ID=73952790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011076261.3A Pending CN112145499A (en) | 2020-10-10 | 2020-10-10 | Hydraulic cylinder guide sleeve locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112145499A (en) |
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2020
- 2020-10-10 CN CN202011076261.3A patent/CN112145499A/en active Pending
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