CN208518999U - A kind of rotary cylinder with worm and gear driving - Google Patents
A kind of rotary cylinder with worm and gear driving Download PDFInfo
- Publication number
- CN208518999U CN208518999U CN201820859915.1U CN201820859915U CN208518999U CN 208518999 U CN208518999 U CN 208518999U CN 201820859915 U CN201820859915 U CN 201820859915U CN 208518999 U CN208518999 U CN 208518999U
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- China
- Prior art keywords
- worm
- piston
- piston rod
- cylinder
- rotary cylinder
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Abstract
The utility model relates to a kind of rotary cylinders with worm and gear driving, including cylinder and the driving device being arranged on cylinder, cylinder includes cylinder body, piston and piston rod assembly, piston rod assembly includes outer piston bar, inner piston rod and limit sleeve, the upper end outer wall of outer piston bar is provided with connection screw thread, intermediate position is provided with column interconnecting piece, and the top of inner piston rod is provided with and inner piston rod can be rotated to the stop collar for being limited in outer piston bar inner cavity convenient for limit sleeve, lower end is provided with the external splines being connected with driving device.The purpose of this utility model, inner piston rod is rotatably set in inner cavity by the way that outer piston rod is arranged in, and inner piston rod rotation is driven by driving device, the rotation of outer piston bar is avoided, the service life sealed between sealing and the outer piston bar between piston and cylinder inner wall and end cap is influenced.
Description
Technical field
The utility model belongs to cylinder technical field, is related to a kind of rotary cylinder with worm and gear driving.
Background technique
Currently, the use scope of cylinder is more and more wider, and the higher lathe of the degree of automation need to control fixture with cylinder
Folding, it usually needs the angle for keeping cylinder rotation certain, with clamping workpiece, during the cylinder rotation of the prior art, piston rod
Or the sealing structure on piston is prone to wear in rotation process, to influence the service life of cylinder.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of rotary cylinders with worm and gear driving, by setting
It sets and inner piston rod is rotatably set in the inner cavity of outer piston rod, and inner piston rod rotation is driven by driving device, avoid
The rotation of outer piston bar, influences the service life sealed between sealing and the outer piston bar between piston and cylinder inner wall and end cap.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of rotary cylinder with worm and gear driving, including cylinder and the driving device being arranged on cylinder, the gas
Cylinder includes cylinder body, piston and piston rod assembly, the piston rod assembly include for fixed piston outer piston bar, rotatably set
Set the limit of the inner piston rod in the inner cavity of outer piston rod and the inner cavity for inner piston rod to be rotatably limited in outer piston bar
Position set, the upper end outer wall of the outer piston bar is provided with connection screw thread for connecting limit sleeve, intermediate position is provided with and is used for
The column interconnecting piece of the fixed piston, the top of the inner piston rod, which is provided with, can be rotated limit for inner piston rod convenient for limit sleeve
System is provided with the external splines being connected with driving device in the stop collar of outer piston rod cavity, lower end.
Further, the inner cavity setting of the upper end of the outer piston bar is easily installed the annular groove of bearing, and the column connects
The upper end of socket part is provided with annular protrusion for limiting piston, lower end is provided with the fixation spiral shell convenient for fixture nut fixed piston
Line.
Further, the lower end on the inner piston rod close to stop collar is additionally provided with the shaft block ring ring for being easily installed bearing
Slot.
Further, the upper end of the cylinder body is provided with the working chamber for accommodating piston, lower end is provided with accommodating chamber, intermediate setting
There is partition, the partition and the cylinder body are integrated setting.
Further, the partition is provided with convenient for accommodating groove, the other end of fixture nut and being provided with just close to piston end
In the through-hole that outer piston bar passes through, the side wall of the groove is provided with the first stomata being in communication with the outside, the inner wall of the through-hole
It is provided with the first closure gasket groove.
Further, the top of the working chamber is provided with end cap, and the cylinder body is provided at proximal cover and is in communication with the outside
The second stomata, the outer wall of the cylinder and first stomata and the second stomata corresponding position are provided with ventilating joint.
Further, the outer end of the accommodating chamber is provided with the connecting flange for connecting driving device, the driving device
Driving motor including worm gear mechanism and for driving worm gear mechanism.
Further, the worm gear mechanism includes spiral case, worm gear, worm gear shaft and worm screw, the shell of the driving motor
On the spiral case being fixed on, output shaft be connected with worm screw, the internal spline matched with external splines is provided on the worm gear shaft.
Further, the outer diameter of the worm gear shaft insertion outer piston rod end is 0.1- smaller than the internal diameter of the inner cavity of outer piston bar
0.2mm。
Further, the outer wall of the piston is provided with the support annular groove for being easily installed support ring and setting in support annular groove two
The third closure gasket groove of side, the piston are provided centrally with the connecting hole matched with column interconnecting piece, the connecting hole
Inner wall is provided with the 4th closure gasket groove.
The utility model has the beneficial effects that:
The first, inner piston rod is rotatably set in the inner cavity by the way that outer piston rod is arranged in, and is driven by driving device
Inner piston rod rotation avoids the rotation of outer piston bar, influences between the sealing between piston and cylinder inner wall and outer piston bar and end cap
The service life of sealing.
The second, by the way that bearing is arranged between outer piston rod and inner piston rod, convenient for driving device driving inner piston rod rotation.
Third, by the way that internal spline is arranged on the worm gear shaft, convenient for connect with inner piston rod, worm gear shaft insertion outer piston rod end
Outer diameter it is 0.1-0.2mm smaller than the internal diameter of the inner cavity of outer piston bar, rotated in outer piston rod cavity convenient for worm gear shaft, made simultaneously
The section of worm gear shaft is larger, avoids the excessive intensity for influencing internal spline position in gap.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
Fig. 1 is a kind of structural schematic diagram of the rotary cylinder with worm and gear driving of the utility model；
Fig. 2 is the structural schematic diagram of the cylinder of the utility model；
Fig. 3 is the structural schematic diagram of the piston rod assembly of the utility model.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Figure 1-3, a kind of rotary cylinder with worm and gear driving, including cylinder 1 and the drive being arranged on cylinder 1
Dynamic device 2, the cylinder 1 include cylinder body 11, piston 12 and piston rod assembly 13, and the piston rod assembly 13 includes for fixing
The outer piston bar 131 of piston 12, be rotatably provided in outer piston bar 131 inner cavity inner piston rod 132 and for by inner piston
Bar 132 is rotatably limited in the limit sleeve 133 of the inner cavity of outer piston bar 131, the upper end outer wall setting of the outer piston bar 131
There are the connection screw thread for connecting limit sleeve 133, intermediate position to be provided with the column interconnecting piece for fixing the piston 12, institute
The top for stating inner piston rod 132, which is provided with, is rotatably limited in inner piston rod 133 in outer piston bar 131 convenient for limit sleeve 133
The stop collar of chamber, lower end are provided with the external splines being connected with driving device 2；It can be rotated in inner cavity by the way that outer piston rod is arranged in
Inner piston rod is set, and inner piston rod rotation is driven by driving device, avoids the rotation of outer piston bar, influences piston and cylinder
The service life sealed between sealing between inner wall and outer piston bar and end cap.
In the present embodiment, the inner cavity setting of the upper end of outer piston bar 131 is easily installed the annular groove of bearing 134, column
The upper end of interconnecting piece is provided with annular protrusion for limiting piston 12, lower end is provided with convenient for fixture nut fixed piston 12
Piston is fixed on outer piston bar by the way that double nut is arranged at fixed thread, and has the function of to loosen by fixed thread.
In the present embodiment, the lower end on inner piston rod 132 close to stop collar is additionally provided with the axis use for being easily installed bearing 134
The inner ring of bearing is fixed on inner piston rod by retaining ring annular groove by placing shaft block ring 135 in shaft block ring annular groove.
In the present embodiment, the upper end of cylinder body 11 is provided with the working chamber 111 for accommodating piston 12, lower end is provided with accommodating chamber
112, centre is provided with partition 113, by be arranged accommodating chamber, convenient for outer piston bar lower end stretch out when, not with driving device phase
Collision, partition 113 and cylinder body 11 are integrated setting；Partition 113 is provided with to accommodate the recessed of fixture nut close to 12 end of piston
Slot, the other end are provided with the through-hole passed through convenient for outer piston bar 131, are fixed on piston using with thick, thin two nuts
Outer piston bar, connection is reliable and has locking functions；The side wall of groove is provided with the first stomata being in communication with the outside, through-hole it is interior
Wall is provided with the first closure gasket groove for being easily installed the first sealing ring, and gas is avoided to leak into accommodating chamber, influences the normal of cylinder
Operation.
In the present embodiment, the top of working chamber 111 is provided with end cap 14, and cylinder body 11 is provided with and the external world at proximal cover 14
Second stomata of connection is provided with the cap bore passed through convenient for outer piston bar on end cap, and the inner wall of cap bore is set gradually from outside to inside
There is the dustband annular groove for being easily installed dustband and is easily installed the 5th closure gasket groove of the 5th sealing ring, the outer wall setting of end cap
Have the external screw thread for being connected with cylinder inner wall and be easily installed the 6th closure gasket groove of the 6th sealing ring, the outer wall of cylinder 11 with
First stomata and the second stomata corresponding position are provided with ventilating joint 15, by setting ventilating joint convenient for be connected to extraneous gas source or
Exhaust.
In the present embodiment, the outer end of accommodating chamber 112 is provided with the connecting flange 16 for connecting driving device 2, driving dress
Setting 2 includes worm gear mechanism 21 and the driving motor 22 for driving worm gear mechanism 21；Worm gear mechanism 21 includes
Spiral case 211, worm gear, worm gear shaft 212 and worm screw, on the spiral case that the shell of driving motor 22 is fixed on, output shaft be connected with worm screw,
It is provided with the internal spline matched with external splines on worm gear shaft 212, by the way that internal spline is arranged on the worm gear shaft, is convenient for and inner piston
Bar connection.
In the present embodiment, worm gear shaft 212 be inserted into 131 end of outer piston bar outer diameter than outer piston bar 131 inner cavity internal diameter
Small 0.1-0.2mm is rotated in outer piston rod cavity convenient for worm gear shaft, while being made the section of worm gear shaft larger, avoids gap mistake
The big intensity for influencing internal spline position.
In the present embodiment, the outer wall of piston 12 is provided with the support annular groove for being easily installed support ring 121 and setting is supporting
The third closure gasket groove for being easily installed third sealing ring 122 of annular groove two sides, piston 12 are provided centrally with and column interconnecting piece
The connecting hole matched, the inner wall of connecting hole are provided with the 4th closure gasket groove for being easily installed the 4th sealing ring 123.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (10)
1. a kind of rotary cylinder with worm and gear driving, it is characterised in that: including cylinder and the driving being arranged on cylinder dress
It sets, the cylinder includes cylinder body, piston and piston rod assembly, and the piston rod assembly includes the outer piston for fixed piston
Bar, be rotatably provided in outer piston bar inner cavity inner piston rod and for inner piston rod to be rotatably limited in outer piston bar
Inner cavity limit sleeve, the upper end outer wall of the outer piston bar is provided with connection screw thread for connecting limit sleeve, intermediate position
It is provided with the column interconnecting piece for fixing the piston, the top of the inner piston rod is provided with inner piston convenient for limit sleeve
Bar is rotatably limited in the stop collar of outer piston bar inner cavity, lower end is provided with the external splines being connected with driving device.
2. a kind of rotary cylinder with worm and gear driving according to claim 1, it is characterised in that: the outer piston bar
The inner cavity setting of upper end be easily installed the annular groove of bearing, the upper end of the column interconnecting piece is provided with for limiting piston
Annular protrusion, lower end is provided with convenient for the fixed thread of fixture nut fixed piston.
3. a kind of rotary cylinder with worm and gear driving according to claim 2, it is characterised in that: the inner piston rod
The upper lower end close to stop collar is additionally provided with the shaft block ring annular groove for being easily installed bearing.
4. it is according to claim 1 it is a kind of with worm and gear driving rotary cylinder, it is characterised in that: the cylinder body it is upper
End be provided with accommodate piston working chamber, lower end is provided with accommodating chamber, centre is provided with partition, the partition is with the cylinder body
It is wholely set.
5. a kind of rotary cylinder with worm and gear driving according to claim 4, it is characterised in that: the partition is close
Piston end is provided with convenient for accommodating groove, the other end of fixture nut and being provided with the through-hole passed through convenient for outer piston bar, described recessed
The side wall of slot is provided with the first stomata being in communication with the outside, and the inner wall of the through-hole is provided with the first closure gasket groove.
6. a kind of rotary cylinder with worm and gear driving according to claim 5, it is characterised in that: the working chamber
Top is provided with end cap, and the cylinder body is provided with the second stomata being in communication with the outside at proximal cover, the outer wall of the cylinder with
First stomata and the second stomata corresponding position are provided with ventilating joint.
7. a kind of rotary cylinder with worm and gear driving according to claim 4, it is characterised in that: the accommodating chamber
Outer end is provided with the connecting flange for connecting driving device, and the driving device includes worm gear mechanism and for driving snail
The driving motor of worm and gear mechanism.
8. a kind of rotary cylinder with worm and gear driving according to claim 7, it is characterised in that: the worm and gear
Mechanism includes spiral case, worm gear, worm gear shaft and worm screw, on the spiral case that the shell of the driving motor is fixed on, output shaft and worm screw
It is connected, the internal spline matched with external splines is provided on the worm gear shaft.
9. a kind of rotary cylinder with worm and gear driving according to claim 7, it is characterised in that: the worm gear shaft is inserted
The outer diameter for entering outer piston rod end is 0.1-0.2mm smaller than the internal diameter of the inner cavity of outer piston bar.
10. -9 any a kind of rotary cylinder with worm and gear driving according to claim 1, it is characterised in that: described
The outer wall of piston is provided with the support annular groove for being easily installed support ring and the third closure gasket groove of support annular groove two sides, institute is arranged in
The connecting hole matched with column interconnecting piece that is provided centrally with of piston is stated, the inner wall of the connecting hole is provided with the 4th sealing ring
Slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820859915.1U CN208518999U (en) | 2018-06-01 | 2018-06-01 | A kind of rotary cylinder with worm and gear driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820859915.1U CN208518999U (en) | 2018-06-01 | 2018-06-01 | A kind of rotary cylinder with worm and gear driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518999U true CN208518999U (en) | 2019-02-19 |
Family
ID=65324741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820859915.1U Expired - Fee Related CN208518999U (en) | 2018-06-01 | 2018-06-01 | A kind of rotary cylinder with worm and gear driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208518999U (en) |
-
2018
- 2018-06-01 CN CN201820859915.1U patent/CN208518999U/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: 20190219 Termination date: 20200601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |