CN204025216U - A kind of little stroke can automatically reset oil hydraulic cylinder - Google Patents
A kind of little stroke can automatically reset oil hydraulic cylinder Download PDFInfo
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- CN204025216U CN204025216U CN201420451637.8U CN201420451637U CN204025216U CN 204025216 U CN204025216 U CN 204025216U CN 201420451637 U CN201420451637 U CN 201420451637U CN 204025216 U CN204025216 U CN 204025216U
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- cylinder body
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- round hole
- oil
- blind round
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Abstract
The utility model relates to a kind of little stroke can automatically reset oil hydraulic cylinder, comprise cylinder body and piston, it is characterized in that: described cylinder body is installed to attachment face by bolt, Returnning spring is provided with between described cylinder body and bolt head, described Returnning spring one end contacts with cylinder body, and the other end contacts with bolt head; Described cylinder body offers blind round hole near the side of attachment face, and described piston is arranged in described blind round hole, is provided with sealing dust-proof device between described blind round hole and described piston; Described blind round hole end face offers oil inlet passage, and described oil inlet passage is connected with single oil circuit; Described single oil circuit is at least connected with a hydraulic fluid port, the logical oil of one of them hydraulic fluid port; The length of described piston is greater than the maximum compressibility of described Returnning spring.The utility model has following beneficial effect: structure is simple, and installing space is little, can effectively be applied in roller mill and other field of mechanical technique; Adopt single oil circuit, energy consumption is little.
Description
Technical field
The utility model relates to oil hydraulic cylinder equipment technical field, and particularly relating to a kind of little stroke can automatically reset oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder changes hydraulic energy into mechanical energy, makes machinery realize reciprocal straight line motion or swing, is widely used in field of mechanical technique, and in roller mill technical field, application is a lot of especially, and the motion of a lot of component completes by Hydraulic Cylinder.In roller mill, some only needs the place of little stroke motion, and spatial structure is limited, and the oil hydraulic cylinder of common form is difficult to install.And the two oil circuit of the many employings of oil hydraulic cylinder, two-way oil-feed realizes to-and-fro motion, can not realize automatically reseting.
Therefore be necessary that a kind of little stroke of design can automatically reset oil hydraulic cylinder, to overcome the problems referred to above.
Model utility content
The purpose of this utility model is the defect overcoming prior art, provides a kind of little stroke can automatically reset oil hydraulic cylinder, and its structure is simple, and installing space is little, and power consumption is few.
The little stroke of the one that the utility model provides can automatically reset oil hydraulic cylinder, comprise cylinder body and piston, described cylinder body is installed to attachment face by bolt, is provided with Returnning spring between described cylinder body and bolt head, described Returnning spring one end contacts with cylinder body, and the other end contacts with bolt head; Described cylinder body offers blind round hole near the side of attachment face, and described piston is arranged in described blind round hole, is provided with sealing dust-proof device between described blind round hole and described piston; Described blind round hole end face offers oil inlet passage, and described oil inlet passage is connected with single oil circuit; Described single oil circuit is at least connected with a hydraulic fluid port, the logical oil of one of them hydraulic fluid port; The length of described piston is greater than the maximum compressibility of described Returnning spring.
Further, described single oil circuit is connected with 2 hydraulic fluid ports, and one of them hydraulic fluid port is closed by plug screw.
Further, when the stroke of described oil hydraulic cylinder is less, at the embedded central ring of described blind round hole, described central ring is fixed on described cylinder body, and described piston is arranged in described central ring; Be provided with sealing dust-proof device between described cylinder body and central ring, between described central ring and piston, be provided with sealing dust-proof device.
Further, described central ring is fixed by screws on described cylinder body.
The utility model has following beneficial effect: the utility model adopts single oil circuit and Returnning spring to realize work and the reset of oil hydraulic cylinder, and structure is simple, and installing space is little, can effectively be applied in roller mill and other field of mechanical technique; Adopt single oil circuit to automatically reset, energy consumption is little.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 adopts the little stroke of blind hole embedded central ring mode can the plan view of automatically reset oil hydraulic cylinder;
Fig. 2 is the phase diagram of A-A section when the obstructed oil of single oil circuit of Fig. 1;
Fig. 3 is the phase diagram of A-A section when single oil circuit leads to oil of Fig. 1;
Fig. 4 is the phase diagram of B-B section when the obstructed oil of single oil circuit of Fig. 1;
Fig. 5 is the phase diagram of B-B section when single oil circuit leads to oil of Fig. 1;
Wherein: 1, cylinder body; 2, central ring; 3, screw; 4, piston; 5, bolt; 6, Returnning spring; 7, single oil circuit; 8, hydraulic fluid port.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, belong to the scope of the utility model protection.
As shown in Figures 1 to 5, the little stroke of the one that the utility model provides can automatically reset oil hydraulic cylinder, comprise cylinder body 1 and piston 4, described cylinder body 1 is installed to attachment face by bolt 5, Returnning spring 6 is provided with between described cylinder body 1 and bolt 5 head, described Returnning spring 6 one end contacts with cylinder body 1, the other end and bolt 5 head contact.Sealing dust-proof device is provided with between described cylinder body 1 and described attachment face.Described cylinder body 1 offers blind round hole near the side of attachment face, and described piston 4 is arranged in described blind round hole, is provided with sealing dust-proof device between described blind round hole and described piston 4; Described piston 4 can to-and-fro motion in described blind round hole, and its one end can contact with described attachment face in movement process.
In the present embodiment, described blind round hole end face offers oil inlet passage, described oil inlet passage is connected with single oil circuit 7; This oil inlet passage can be the shape such as circular hole or looping pit, and the area of this oil inlet passage should be less than the area of described blind round hole end face.In actual job process, the logical oil of described single oil circuit 7, after oil pressure actuated piston 4 moves to attachment face, oil pressure remakes for described blind round hole end face, and cylinder body 1 is stressed leaves attachment face, and Returnning spring 6 is compressed; During described single oil circuit 7 draining, the power acted on blind round hole end face disappears, and Returnning spring 6 resets, its elastic force drives cylinder body 1 to move until contact with attachment face, piston 4 still contacts with attachment face, and when next time leads to oil, oil pressure can directly act on described blind round hole end face.Described blind hole end face is also provided with air vent, to get rid of the air between described blind round hole and piston 4.
In the present embodiment, described single oil circuit 7 is at least connected with a hydraulic fluid port 8, the logical oil of one of them hydraulic fluid port.Only have the logical oil of a hydraulic fluid port in all hydraulic fluid ports 8, remaining hydraulic fluid port is all closed, multi-direction logical oil when being convenient to actual use like this, and oil hydraulic cylinder also can realize multi-direction installation.The length of described piston 4 is greater than the maximum compressibility of described Returnning spring 6, and to avoid oil hydraulic cylinder in the process of motion because stroke is excessive, piston 4 leaves blind round hole and draining.
As shown in Figures 1 to 5, preferably, described single oil circuit 7 is connected with 2 hydraulic fluid ports, and one of them hydraulic fluid port is closed by plug screw.
As shown in Figures 1 to 5, when the stroke of described oil hydraulic cylinder is less, at the embedded central ring 2 of described blind round hole, described central ring 2 is fixed on described cylinder body 1, and described piston 4 is arranged in described central ring 2; Be provided with sealing dust-proof device between described cylinder body 1 and central ring 2, between described central ring 2 and piston 4, be provided with sealing dust-proof device.
In the present embodiment, described central ring 2 comprises chamber portion and is fixed on the standing part on described cylinder body 1, and described piston 4 is arranged in described chamber portion.Between described cylinder body 1 and attachment face, between described cylinder body 1 and described central ring 2, between described central ring 2 and described piston 4, be equipped with sealing dust-proof device.The structure of embedded central ring 2 is taked to be consider when the stroke of oil hydraulic cylinder is less, the length of piston 4 also can be less accordingly, like this may the inadequate situation of Existential Space when installing the sealing dust-proof device between cylinder body 1 and attachment face, between cylinder body 1 and piston 4, this situation can well solve by adopting embedded central ring 2.
In the present embodiment, further, described central ring is fixed on described cylinder body 1 by screw 3.
Below for the oil hydraulic cylinder of the embedded central ring of blind round hole, by reference to the accompanying drawings the present embodiment is described further.
Shown in Fig. 2 is that one end face of piston 4 contacts with attachment face, forms clearance cavity between other end and blind round hole end face when the obstructed oil of single oil circuit 7.
Shown in Fig. 3: when single oil circuit 7 logical oil, oil pressure heads on the end face of blind round hole, and cylinder body 1 is separated with attachment face under the effect of oil pressure, and the distance that cylinder body 1 is separated with attachment face is the stroke preset.
Shown in Fig. 4 is that Returnning spring 6 is in its pre-compressed state, and cylinder body 1 contacts with attachment face when single oil circuit 7 obstructed oil.
Shown in Fig. 5: when single oil circuit 7 logical oil, cylinder body 1 is separated with attachment face, and Returnning spring 6 is compressed, and decrement is the stroke preset.
When single oil circuit 7 emptying, Returnning spring 6 resets, and cylinder body 1 resets under its elastic force effect, contacts with attachment face.
The little stroke that the utility model embodiment provides can automatically reset oil hydraulic cylinder, single oil circuit and Returnning spring is adopted to realize work and the reset of oil hydraulic cylinder, structure is simple, installing space is little, meet little stroke motion space to the requirement of hydraulic cylinder structure, can effectively be applied in roller mill and other field of mechanical technique; Adopt single oil circuit to automatically reset, energy consumption is little.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a little stroke can automatically reset oil hydraulic cylinder, comprise cylinder body and piston, it is characterized in that: described cylinder body is installed to attachment face by bolt, between described cylinder body and bolt head, be provided with Returnning spring, described Returnning spring one end contacts with cylinder body, and the other end contacts with bolt head; Described cylinder body offers blind round hole near the side of attachment face, and described piston is arranged in described blind round hole, is provided with sealing dust-proof device between described blind round hole and described piston; Described blind round hole end face offers oil inlet passage, and described oil inlet passage is connected with single oil circuit; Described single oil circuit is at least connected with a hydraulic fluid port, the logical oil of one of them hydraulic fluid port; The length of described piston is greater than the maximum compressibility of described Returnning spring.
2. little stroke according to claim 1 can automatically reset oil hydraulic cylinder, it is characterized in that: described single oil circuit is connected with 2 hydraulic fluid ports, and one of them hydraulic fluid port is closed by plug screw.
3. little stroke according to claim 1 and 2 can automatically reset oil hydraulic cylinder, and it is characterized in that: the embedded central ring of described blind round hole, described central ring is fixed on described cylinder body, and described piston is arranged in described central ring; Be provided with sealing dust-proof device between described cylinder body and central ring, between described central ring and piston, be provided with sealing dust-proof device.
4. little stroke according to claim 3 can automatically reset oil hydraulic cylinder, it is characterized in that: described central ring is fixed by screws on described cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451637.8U CN204025216U (en) | 2014-08-12 | 2014-08-12 | A kind of little stroke can automatically reset oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451637.8U CN204025216U (en) | 2014-08-12 | 2014-08-12 | A kind of little stroke can automatically reset oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025216U true CN204025216U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420451637.8U Active CN204025216U (en) | 2014-08-12 | 2014-08-12 | A kind of little stroke can automatically reset oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025216U (en) |
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2014
- 2014-08-12 CN CN201420451637.8U patent/CN204025216U/en active Active
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