CN202851511U

CN202851511U - Rodless power cylinder

Info

Publication number: CN202851511U
Application number: CN 201220519104
Authority: CN
Inventors: 吴载兆
Original assignee: CHANGTUO AIR HYDRAULICS Co Ltd
Current assignee: CHANGTUO AIR HYDRAULICS Co Ltd
Priority date: 2012-10-11
Filing date: 2012-10-11
Publication date: 2013-04-03
Anticipated expiration: 2022-10-11

Abstract

The utility model discloses a rodless power cylinder which mainly comprises a cylinder body. A piston is arranged in the cylinder body and moves back and forth. Magnets are arranged at two ends of the piston. Two valve devices are respectively arranged at two ends of the cylinder body and discharge compressed fluid into the cylinder body to enable the piston to move back and forth. Sensor installation grooves are respectively arranged in two ends of the cylinder body and is used for placing of magnetic sensors. The magnetic sensors are used for sensing the positions of the magnets on the piston. A moving part is arranged on the outer periphery of the cylinder body. The moving part and magnetism of the piston are combined mutually to enable the moving part to move back and forth as well.

Description

Rodless power cylinder

Technical field

The utility model relates to a kind of Rodless power cylinder.

Background technique

Known, the moving part of this Rodless power cylinder places the outer circumferential face of this cylinder body and depends on this moving part for installations, when this piston moves back and forth in this cylinder body, the magnetic coupling of this moving part is combined mutually between the magnetic coupling of this piston is because of magnetic force also makes this moving part move back and forth, the piston of this Rodless power cylinder is in moving back and forth, but because the initial basis on location with finishing of the installations start of depending on this moving part and a kind of piston being provided supply with in moving back and forth and the discharge compressed fluid makes to the cylinder body foundation that piston moves and a kind of this magnetite of the effective sensing of this sensor that provides make this piston have the foundation of slowing down with accurate correction in moving without any device effective supply is a kind of.

Again, existing operation people solves the aforesaid drawbacks all to adopt plug-in or a kind of device of additional configuration for example adds touch switch or laser optical shutter switch for moving part contact in the both sides of this cylinder body, be used for that compressed fluid is supplied with or discharged to this valving of control to cylinder body and this valving depends on the mutual start of installations of this moving part with this, because of artificial operation easily the many error rates of generation piston can't effectively be gone round and begun again move back and forth and causes reduction usefulness; Take a broad view of above-mentioned shortcoming, the real space with improvement of this known Rodless power cylinder.

In view of this, how to develop a kind of wound elder generation structure that has more this valving of desirable effective supply and the mutual start of this moving part and accurately correction, the ardent hope of real use Consumer institute, through the creator this in manufacturing development and the design experiences of being engaged in for many years Related product, for above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicability.

The model utility content

Main purpose of the present utility model is to provide a kind of Rodless power cylinder, this Rodless power cylinder has an installation of sensors groove for placing this magnetic quantity transducer, this magnetic quantity transducer is the position for this piston of sensing, for the foundation of this valving and the mutual start of this moving part.

For reaching above-mentioned purpose, the utility model provides a kind of Rodless power cylinder, it is characterized in that, this Rodless power cylinder includes:

One cylinder body;

One piston comprises a central shaft, a plurality of magnetic coupling, two piston components, and the axial two ends of this central shaft respectively have a magnet, and this piston places in this cylinder body and moves back and forth;

Two valvings lay respectively at this cylinder body two ends, comprise pore supply and discharge compressed fluid to cylinder body, and this valving also has an installation of sensors groove, in this installation of sensors groove a magnetic quantity transducer is set;

One moving part comprises a magnetic coupling, and this moving part places the outer circumferential face of this cylinder body, and the magnetic coupling of this moving part is combined mutually between the magnetic coupling of this piston is because of magnetic force also makes this moving part move with this piston reciprocating.

The groove inwardly established along an outside thread face to the second buffer cell outer surface by valving one body end face center line of this installation of sensors groove wherein.

This installation of sensors groove and extend to this body end face wherein.

Wherein these piston middle spindle two ends respectively have a magnet fixing rod, have this magnet on each fixing rod.

Wherein this each valving has a bonnet, and this bonnet places this cylinder body port outer rim place, and this bonnet comprises this second buffer cell.

When wherein the magnet of this piston enters the second buffer cell of valving, make this magnetic quantity transducer can sense this magnet.

Wherein this Rodless power cylinder is pneumatic cylinder.

Wherein this Rodless power cylinder is oil hydraulic cylinder.

The above as can be known; the utility model is a kind of creation that quite has practicability and progressive in fact; and quite be worth industrial circle to be promoted; and make society know; for making the auditor and haveing the knack of the technique personage effect of the present utility model is understood fully; please cooperate accompanying drawing with regard to structure of the present utility model; form and state in rear; the following stated only for being used for explaining embodiment of the present utility model only; be not that attempt is done any pro forma restriction to the utility model according to this; be with every under spirit of the present utility model, any modification change of doing all must belong to protection domain of the present utility model.

Description of drawings

In order to describe structure of the present utility model, feature and effect place in detail, below in conjunction with preferred embodiment and cooperate description of drawings such as rear, wherein:

Fig. 1 is the stereogram of the utility model one preferred embodiment.

Fig. 2 is the sectional view of the utility model one preferred embodiment.

Fig. 3 is the other end sectional view of the utility model one preferred embodiment.

Embodiment

See also Fig. 1 to Fig. 3, the Rodless power cylinder that the utility model one preferred embodiment provides, this Rodless power cylinder includes:

One cylinder body 10.

One piston 20, this piston 20 places this cylinder body 10 interior moving back and forth, wherein this piston 20 is to comprise a central shaft 21, these a plurality of magnetic couplings 22 are to place this central shaft 21 sides, this each magnetic coupling 22 has a yoke 221 and a magnetite 222 and is arranged alternately with each other, two piston components 23 are to place in the form of a ring and respectively this each central shaft 21 two ends, two cushion collars 24 are to place this each central shaft 21 two ends, and this cushion collar 24 is adjacent these piston components 23, these central shaft two ends respectively have a magnet fixing rod 25, have a magnet 26 on each fixing rod; Wherein this piston component 23 is adjacent with this magnetic coupling 22 and this two cushion collar 24; Wherein a plurality of magnetic couplings 22 of this piston 20 also are comprised of a plurality of yokes 221 of circular plate type and a plurality of magnetites 222 of being positioned at the circular plate type of 221 of each yokes.

Two valvings 30 respectively comprise a buffer area 31, a bonnet 33, buffering adjustment screw hole 35, a buffer loop 36, an installation of sensors groove 37, a blind nut 38, and this each valving 30 is to be arranged at respectively this place, cylinder body 10 axial two ends; Wherein this each valving 30 has a buffer area 31, this buffer area 31 places this cylinder body 10 port inner edge places, respectively this buffer area 31 is to comprise a buffering fixed cover 311, a buffering oil sealing 312, one first buffer cell 313, this buffering fixed cover 311 is to coat this buffering oil sealing 312, and this buffering fixed cover 311 is interior one first buffer cells 313 that also form around these cylinder body 10 ports; This each valving 30 has a bonnet 33, this bonnet 33 places this cylinder body 10 port outer rim places, this bonnet 33 is to comprise a body 331, a pore 332, one second buffer cell 333, a body end face 334, an outside thread face 335, this body 331 places the two ends of this cylinder body 10 and outer circumferential face to have outside thread face 335, this body 331 has a pore 332 and is communicated with this second buffer cell 333, this second buffer cell 333 and be close to this first buffer cell 313 and be communicated with, this pore 332 is to supply with and discharge compressed fluid to cylinder body 10 piston 20 to be moved back and forth; This each valving 30 has a buffering and adjusts screw hole 35 and place the adjacent side of this pore 332, this buffering is adjusted screw hole 35 and is connected with a buffer loop 36, and it is to reach the second buffer cell 333 for piston 20 to coordinate the compressed fluid that this pore 332 is supplied with and discharged that this buffering is adjusted screw hole 35; Respectively there is an installation of sensors groove 37 at the two ends of this cylinder body, and this installation of sensors groove 37 is grooves of inwardly being established along outside thread face 335 to second buffer cell outer rim places by body end face 334 center lines, and this groove also extends to this body end and looks like Figure 1 and Figure 2.This installation of sensors groove 37 is for placing a magnetic quantity transducer, and this magnetic quantity transducer is the second buffer cell 333 the positions whether magnet 26 of this piston 20 of sensing reaches this each valving 30; It is that screw lock is on the outside thread face 335 of this body 331 that this each valving 30 has a blind nut 38.

One moving part 50, to comprise a magnetic coupling 51, this moving part 50 places the outer circumferential face of this cylinder body 10 and depends on this moving part 50 for installations, the magnetic coupling 51 of this moving part 50 and the magnetic coupling of this piston 20 22 are combined mutually between because of magnetic force also makes this moving part 50 move back and forth, and wherein a plurality of magnetic couplings 51 of this moving part 50 also are comprised of a plurality of yokes 221 of circular plate type and a plurality of magnetites 222 of being positioned at the circular plate type of 221 of each yokes.

In addition, the using method of the installation of sensors groove 37 of the present embodiment, the present embodiment the second sectional view of can arranging in pairs or groups explains orally as follows in more detail:

Wherein, when the magnet 26 of this piston 20 enters second buffer cell 333 of valving 30 in this graphic direction left side, make this magnetic quantity transducer sense this magnet 26, and assign the pore 332 that instruction to electrical equipment valve makes the valving 30 on this accompanying drawing direction right side and stop to supply with compressed fluid to cylinder body 10, secondly, this electrical equipment valve and assign instruction to this sensor after the installations start of depending on this moving part 50 is finished, make the pore 332 of the valving 30 in this accompanying drawing direction left side supply with compressed fluid to cylinder body 10, otherwise, the pore 332 on this accompanying drawing direction right side is just discharged compressed fluid, make this piston 20 move to the second buffer cell 333 in this cylinder body 10 is interior to this accompanying drawing direction right side, vice versa.

In sum, after previous embodiment and every explanation, can understand Rodless power cylinder of the present utility model and have above-mentioned characteristics, and meet this new patent condition, at last, must again illustrate, the utility model is taken off disclosed composed component among the embodiment in front, only for illustrating, it is not the scope for restriction this case, substituting or variation of other equivalence elements, the claim scope that also should be this case contains, therefore mention patent application in accordance with the law.

Claims

1. a Rodless power cylinder is characterized in that, this Rodless power cylinder includes:

One cylinder body;

2. according to Rodless power cylinder claimed in claim 1, the groove inwardly established along an outside thread face to the second buffer cell outer surface by valving one body end face center line of this installation of sensors groove wherein.

3. according to Rodless power cylinder claimed in claim 2, this installation of sensors groove and extend to this body end face wherein.

4. according to Rodless power cylinder claimed in claim 2, wherein these piston middle spindle two ends respectively have a magnet fixing rod, have this magnet on each fixing rod.

5. according to Rodless power cylinder claimed in claim 2, wherein this each valving has a bonnet, and this bonnet places this cylinder body port outer rim place, and this bonnet comprises this second buffer cell.

6. according to Rodless power cylinder claimed in claim 5, when wherein the magnet of this piston enters the second buffer cell of valving, make this magnetic quantity transducer can sense this magnet.

7. according to Rodless power cylinder claimed in claim 1, wherein this Rodless power cylinder is pneumatic cylinder.

8. according to Rodless power cylinder claimed in claim 1, wherein this Rodless power cylinder is oil hydraulic cylinder.