CN208330887U - Rotary cylinder with buffer structure - Google Patents
Rotary cylinder with buffer structure Download PDFInfo
- Publication number
- CN208330887U CN208330887U CN201820278800.3U CN201820278800U CN208330887U CN 208330887 U CN208330887 U CN 208330887U CN 201820278800 U CN201820278800 U CN 201820278800U CN 208330887 U CN208330887 U CN 208330887U
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- China
- Prior art keywords
- rod
- spring
- buffer stopper
- segment body
- cylinder
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Abstract
The utility model discloses a kind of rotary cylinders with buffer structure, including cylinder body, cylinder cap, piston rod, piston and air guide connector, piston rod includes the first segment body of rod, the second segment body of rod and the third section body of rod, it is connected between the first segment body of rod and the second segment body of rod by second spring, it is connected between the second segment body of rod and the third section body of rod by third spring, described first, the front end of two sections of bodies of rod is respectively equipped with first, two buffer stoppers, described first, the front end of two buffer stoppers is respectively equipped with first, two cushions, described second, the rear end of three sections of bodies of rod is respectively equipped with first, two grooves；It is additionally provided with limit casing, the periphery of limit casing is equipped with guide groove, and the inboard wall of cylinder block is equipped with spiral lamination, and the both ends of limit casing are respectively equipped with the first spring.The utility model provides a kind of rotary cylinder with buffer structure, and rationally, delicate structure, good buffer effect is conducive to extend the service life of rotary cylinder, to save cost for design.
Description
Technical field
The utility model belongs to the manufacturing technology field of valve driver cylinder, specifically a kind of returning with buffer structure
Rotaring cylinder.
Background technique
Rotary cylinder, that is, intake and exhaust conduit and guide head are all fixed and cylinder body can then be relatively rotated and be acted on
A kind of cylinder in machine tool fixture and wire coil device is to guide piston in the cylindrical shape gold for wherein carrying out straight reciprocating motion
Belong to parts.In order to improve working efficiency, currently, rotary cylinder is to high speed motor development.Rotary cylinder high speed is influenced to transport
Exactly when rotary cylinder moves to its terminal, piston caused by kinetic energy and pressure energy and end cap rush a dynamic principal element
It hits.This problem is difficult to satisfactorily be resolved always.The existing rotary cylinder with buffer unit is essentially all both at home and abroad
Reduce rotary cylinder movement velocity with the mode of exhaust throttle and reversed back pressure effect to reach the mesh for reducing or eliminating impact
's.The method has the following shortcomings: 1, buffering effect is poor: since the decrement of air is big, it is difficult to will row in short time stroke
The very low back pressure of air cavity is increased to pressure required for opposite with normal pressure and kinetic energy capable of resisting, therefore in shorter cushion stroke
In the case where the piston of cylinder can be made to collide with end cap；2, the movement velocity of bounce cylinder is not easy to improve: due to air
Decrement is big, needs the regular hour in advance, reduces capacity, increases the air pressure in discharge chamber, therefore which reduce
The average movement velocity of cylinder significantly extends the time of cylinder moving.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of rotary cylinder with buffer structure, design is closed
Reason, delicate structure, good buffer effect is conducive to extend the service life of rotary cylinder, to save cost.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of with buffering knot
The rotary cylinder of structure, including gray iron, piston rod, piston and air guide connector, before the side for being equipped with air guide connector is defined as
Side, the piston are set to the inside of the cylinder body, and the cylinder cap is set to the front of the cylinder body and the cylinder cap and the cylinder body
It is tightly connected, the front end of the piston rod is connect with the piston and outside, the cylinder cap across the rear portion of cylinder body are led in rear end
Front end face be equipped with air guide shaft, the air guide connector is set on air guide shaft, and the piston rod includes the first segment body of rod, second segment
The body of rod and the third section body of rod, one end of the third section body of rod is connect with the piston and the other end and the second segment body of rod
One end connection, the other end of the second segment body of rod connect with one end of the first segment body of rod, the first segment body of rod it is another
Outside is led at the rear portion that one end passes through cylinder body, is connected between the first segment body of rod and the second segment body of rod by second spring
It connects, is connected between the second segment body of rod and the third section body of rod by third spring, the front end of the first segment body of rod is set
There are the first buffer stopper, first buffer stopper and the first segment body of rod integrally connected, the front end of first buffer stopper is equipped with
First cushion, the rear end of the second segment body of rod are equipped with the first groove to match with the first buffer stopper, the second spring
Rear end be fixedly connected with first buffer stopper and front end is fixedly connected with the bottom of first groove；The second segment bar
The front end of body is equipped with the second buffer stopper, second buffer stopper and the second segment body of rod integrally connected, second buffer stopper
Front end be equipped with the second cushion, the rear end of the third section body of rod is equipped with the second groove to match with the second buffer stopper, institute
The rear end for stating third spring is fixedly connected with second buffer stopper and front end is fixedly connected with the bottom of second groove；
Preferably, the rotary cylinder with buffer structure is additionally provided with limit casing, and the limit casing is sheathed on institute
It states the periphery of piston rod and is fixedly connected by connector with the second segment body of rod of the piston rod, the periphery of the limit casing
Equipped with guide groove, the inboard wall of cylinder block is equipped with the spiral lamination that matches with screw thread, and the both ends of the limit casing are respectively equipped with the
One spring；First spring and the limit casing are all located at the inside of the cylinder body；
First buffer stopper and second buffer stopper are the identical buffer stopper of structure, and the section of the buffer stopper is circle
Shape；The diameter of first buffer stopper is less than the central diameter of the second spring, first buffer stopper be inserted into second spring and with
The second spring is fixedly connected；The diameter of second buffer stopper is less than the central diameter of the third spring, second buffering
Block is inserted into third spring and is fixedly connected with the third spring.
Preferably, first cushion is rubber pad, the rubber pad is hemispherical rubber pad.
Preferably, second cushion is rubber pad, the rubber pad is hemispherical rubber pad.
It further says, the total length of the limit casing and first spring is less than the length of the piston rod.
Further say, the length of the second spring be greater than the first buffer stopper length and the first groove depth it
With.
Further say, the length of the third spring be greater than the second buffer stopper length and the second groove depth it
With.
The beneficial effects of the utility model at least have the following:
(1) the utility model gray iron, piston rod, piston and air guide connector, piston rod include the first segment body of rod,
Two sections of bodies of rod and the third section body of rod are equipped with buffer structure, the second segment body of rod and third between the first segment body of rod and the second segment body of rod
Buffer structure is equipped between the section body of rod；When rotary cylinder operates, the utility model by the first segment body of rod and the second segment body of rod it
Between the buffer structure that is arranged between the buffer structure and the second segment body of rod and the third section body of rod that are arranged produced to reduce cylinder movement
Raw impact force, prevents cylinder from damaging, and extends the service life of cylinder, and buffering effect more preferably, and close by delicate structure, design
Reason；
(2) diameter of the first, second buffer stopper is smaller than the central diameter of second, third spring in the utility model, and first,
Two buffer stoppers are inserted into second, third spring respectively and are fixedly connected with second, third spring, piston rod of such design in cylinder
When movement, second, third spring has position-limiting action to piston rod, will not skew；
(3) periphery of the piston rod of the utility model is equipped with limit casing, the second segment body of rod of limit casing and piston rod
It is fixedly connected, the three pair rod body for piston rod limits, and keeps piston rod crooked to influence cylinder regular event, and limit
The both ends of casing are connected separately with the first spring, have buffer function, cylinder is avoided to damage, therefore, the buffering effect of the utility model
Fruit is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that the limit casing of the utility model is connect with piston rod.
Appended drawing reference:
1, cylinder body, 2, cylinder cap, 3, piston rod, 31, the first segment body of rod, the 311, first buffer stopper, the 312, first cushion,
32, the second segment body of rod, the 321, first groove, the 322, second buffer stopper, the 323, second cushion, 33, the third section body of rod, 331,
Two grooves, 34, second spring, 35, third spring, 36, limit casing, 37, connector, the 38, first spring, 4, piston, 5, lead
Gas connector, 6, air guide shaft.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.Without departing substantially from this
In the case where utility model spirit and essence, to modifications or substitutions made by the utility model method, step or condition, belong to
The protection scope of the utility model.
A kind of rotary cylinder with buffer structure according to an embodiment of the present invention, as Figure 1-Figure 2, including cylinder body 1,
The side for being equipped with air guide connector is defined as front by cylinder cap 2, piston rod 3, piston 4 and air guide connector 5, and the piston is set to institute
The inside of cylinder body is stated, the cylinder cap is set to the front of the cylinder body and the cylinder cap and the cylinder body are tightly connected, the piston
The front end of bar is connect with the piston and rear end passes through the rear portion of cylinder body and leads to outside, and the front end face of the cylinder cap is equipped with air guide
Axis, the air guide connector are set on air guide shaft 6, and the piston rod includes the first segment body of rod 31, the second segment body of rod 32 and third
The section body of rod 33, one end of the third section body of rod is connect with the piston and one end of the other end and the second segment body of rod connects
It connects, the other end of the second segment body of rod is connect with one end of the first segment body of rod, and the other end of the first segment body of rod is worn
Outside is led at the rear portion for crossing cylinder body, is connected between the first segment body of rod and the second segment body of rod by second spring 34, institute
It states and is connected between the second segment body of rod and the third section body of rod by third spring 35, the front end of the first segment body of rod is equipped with the
One buffer stopper 311, first buffer stopper and the first segment body of rod integrally connected, the front end of first buffer stopper are equipped with the
One cushion 312, the rear end of the second segment body of rod are equipped with the first groove 321 to match with the first buffer stopper, and described second
The rear end of spring is fixedly connected with first buffer stopper and front end is fixedly connected with the bottom of first groove；Described second
The front end of the section body of rod is equipped with the second buffer stopper 322, second buffer stopper and the second segment body of rod integrally connected, and described second
The front end of buffer stopper is equipped with the second cushion 323, and the rear end of the third section body of rod is equipped with the to match with the second buffer stopper
Two grooves 331, the rear end of the third spring is fixedly connected with second buffer stopper and the bottom of front end and second groove
Portion is fixedly connected；
It is additionally provided with limit casing 36, the limit casing is sheathed on the periphery of the piston rod and by connector 37 and institute
The second segment body of rod for stating piston rod is fixedly connected, and the periphery of the limit casing is equipped with guide groove (not shown), in the cylinder body
Wall is equipped with the spiral lamination (not shown) to match with screw thread, and the both ends of the limit casing are respectively equipped with the first spring 38；It is described
First spring and the limit casing are all located at the inside of the cylinder body；
First buffer stopper and second buffer stopper are the identical buffer stopper of structure, and the section of the buffer stopper is circle
Shape；The diameter of first buffer stopper is less than the central diameter of the second spring, first buffer stopper be inserted into second spring and with
The second spring is fixedly connected；The diameter of second buffer stopper is less than the central diameter of the third spring, second buffering
Block is inserted into third spring and is fixedly connected with the third spring.
First cushion is rubber pad, and the rubber pad is hemispherical rubber pad.
Second cushion is rubber pad, and the rubber pad is hemispherical rubber pad.
The total length of the limit casing and first spring is less than the length of the piston rod.
The length of the second spring is greater than the length of the first buffer stopper and the sum of the depth of the first groove.
The length of the third spring is greater than the length of the second buffer stopper and the sum of the depth of the second groove.
The working principle or workflow of the utility model are as follows:
The utility model gray iron, piston rod, piston and air guide connector, piston rod include the first segment body of rod, second segment
The body of rod and the third section body of rod are equipped with buffer structure, the second segment body of rod and third section bar between the first segment body of rod and the second segment body of rod
Buffer structure is equipped between body；When rotary cylinder operates, the utility model between the first segment body of rod and the second segment body of rod by setting
What the buffer structure being arranged between the buffer structure and the second segment body of rod set and the third section body of rod generated to reduce cylinder movement
Impact force prevents cylinder from damaging, and extends the service life of cylinder, and more preferably, and delicate structure, design are reasonable for buffering effect.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those skilled in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.Here without exhaustion.And the guarantor that obvious changes or variations extended from this are created still in the utility model
It protects among range.
Claims (6)
1. a kind of rotary cylinder with buffer structure, it is characterised in that: including cylinder body (1), cylinder cap (2), piston rod (3), live
(4) and air guide connector (5) to be filled in, the side for being equipped with air guide connector is defined as front, the piston is set to the inside of the cylinder body,
The cylinder cap is set to the front of the cylinder body and the cylinder cap and the cylinder body are tightly connected, the front end of the piston rod with it is described
Outside is led at the rear portion that piston connection and rear end pass through cylinder body, and the front end face of the cylinder cap is equipped with air guide shaft, the air guide connector
It is set on air guide shaft (6), the piston rod includes the first segment body of rod (31), the second segment body of rod (32) and the third section body of rod
(33), one end of the third section body of rod is connect with the piston and the other end is connect with one end of the second segment body of rod, institute
The other end for stating the second segment body of rod is connect with one end of the first segment body of rod, and the other end of the first segment body of rod passes through cylinder body
Rear portion lead to outside, connected between the first segment body of rod and the second segment body of rod by second spring (34), described the
It is connected between two sections of bodies of rod and the third section body of rod by third spring (35), the front end of the first segment body of rod is equipped with first
Buffer stopper (311), first buffer stopper and the first segment body of rod integrally connected, the front end of first buffer stopper are equipped with the
One cushion (312), the rear end of the second segment body of rod is equipped with the first groove (321) to match with the first buffer stopper, described
The rear end of second spring is fixedly connected with first buffer stopper and front end is fixedly connected with the bottom of first groove；It is described
The front end of the second segment body of rod is equipped with the second buffer stopper (322), second buffer stopper and the second segment body of rod integrally connected, institute
The front end for stating the second buffer stopper is equipped with the second cushion (323), and the rear end of the third section body of rod is equipped with and the second buffer stopper phase
Matched second groove (331), the rear end of the third spring is fixedly connected with second buffer stopper and front end and described the
The bottom of two grooves is fixedly connected；
The rotary cylinder with buffer structure, is additionally provided with limit casing (36), and the limit casing is sheathed on the piston
It the periphery of bar and is fixedly connected by connector (37) with the second segment body of rod of the piston rod, the periphery of the limit casing is set
There is guide groove, the inboard wall of cylinder block is equipped with the spiral lamination to match with screw thread, and the both ends of the limit casing are respectively equipped with first
Spring (38)；First spring and the limit casing are all located at the inside of the cylinder body；
First buffer stopper and second buffer stopper are the identical buffer stopper of structure, and the section of the buffer stopper is circle；
The diameter of first buffer stopper is less than the central diameter of the second spring, first buffer stopper be inserted into second spring and with it is described
Second spring is fixedly connected；The diameter of second buffer stopper is less than the central diameter of the third spring, and second buffer stopper is inserted
Enter third spring and is fixedly connected with the third spring.
2. the rotary cylinder according to claim 1 with buffer structure, it is characterised in that: first cushion is rubber
Rubber mat, the rubber pad are hemispherical rubber pad.
3. the rotary cylinder according to claim 1 with buffer structure, it is characterised in that: second cushion is rubber
Rubber mat, the rubber pad are hemispherical rubber pad.
4. the rotary cylinder according to claim 1 with buffer structure, it is characterised in that: the limit casing and described
The total length of first spring is less than the length of the piston rod.
5. the rotary cylinder according to claim 1 with buffer structure, it is characterised in that: the length of the second spring
Greater than the length of the first buffer stopper and the sum of the depth of the first groove.
6. the rotary cylinder according to claim 1 with buffer structure, it is characterised in that: the length of the third spring
Greater than the length of the second buffer stopper and the sum of the depth of the second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820278800.3U CN208330887U (en) | 2018-02-27 | 2018-02-27 | Rotary cylinder with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820278800.3U CN208330887U (en) | 2018-02-27 | 2018-02-27 | Rotary cylinder with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330887U true CN208330887U (en) | 2019-01-04 |
Family
ID=64782679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820278800.3U Expired - Fee Related CN208330887U (en) | 2018-02-27 | 2018-02-27 | Rotary cylinder with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330887U (en) |
-
2018
- 2018-02-27 CN CN201820278800.3U patent/CN208330887U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20210227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |