CN218882652U - Plunger type cylinder with pressurizing function - Google Patents
Plunger type cylinder with pressurizing function Download PDFInfo
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- CN218882652U CN218882652U CN202222714249.1U CN202222714249U CN218882652U CN 218882652 U CN218882652 U CN 218882652U CN 202222714249 U CN202222714249 U CN 202222714249U CN 218882652 U CN218882652 U CN 218882652U
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Abstract
The utility model relates to a plunger type cylinder with a supercharging function, which comprises a cylinder barrel; one end of the plunger rod is inserted into the plunger cavity and forms sliding sealing fit with the cylinder barrel, and the other end of the plunger rod is provided with a cylinder bottom cover; the second oil inlet hole is communicated with a rodless cavity in the pressurizing cavity; the plunger rod is provided with an oil outlet; one end of the pressurizing rod is positioned in the rod cavity, and the other end of the pressurizing rod is positioned in the pressurizing cavity and is connected with the piston in the pressurizing cavity; the first oil inlet hole and the second oil inlet hole are connected with an oil inlet main pipe; the oil liquid contact area of the piston in the rodless cavity is larger than the sectional area of the booster rod. The raw material cost can be greatly saved without increasing an oil cylinder, the booster rod is arranged in the plunger, the appearance of the original plunger cylinder is basically not changed, and the whole structure is very compact. The displacement of the hydraulic pump with unchanged cylinder diameter of the oil cylinder is only the same as that of the prior hydraulic pump, and an external supercharger and an external pipeline are not required to be added, so that the safety and the stability are higher.
Description
Technical Field
The utility model relates to a take plunger type jar of pressure boost function.
Background
At present, the hydraulic press can only output larger thrust by the following three means for realizing oil cylinder output.
Firstly, the method comprises the following steps: the output pressure of the hydraulic pump is limited to the upper limit, and the plunger diameter of the plunger cylinder can be only increased; the problems with this approach are: the plunger diameter of the plunger cylinder is increased, the overall dimension of the oil cylinder is increased, the cost of raw materials is increased, the displacement of the hydraulic pump is increased to ensure the movement speed of the oil cylinder, and the cost is increased.
Secondly, the method comprises the following steps: the external pressure cylinder of hydro-cylinder increases the operating pressure of hydro-cylinder, and the problem that this means exists is: the external booster cylinder needs to be additionally provided with a high-pressure-resistant pipeline, the high-pressure pipeline is exposed outside during working, construction safety risks can be increased, due to the fact that the booster is arranged in the oil cylinder, the safety risks of the conventional pipeline connected with the oil cylinder are the same as those of the conventional pipeline, and the risk of bursting of the ultrahigh-pressure pipeline is avoided.
Thirdly, the method comprises the following steps: the method for adding the ultra-high pressure pump in the hydraulic system has the following problems: the ultrahigh pressure pump needs to be additionally provided with an ultrahigh pressure pipeline, the high pressure pipeline is exposed outside to increase construction safety risk during working, and due to the fact that a supercharger is arranged in the oil cylinder, the safety risk of the conventional pipeline before the oil cylinder is the same as that before, and the risk of explosion of the ultrahigh pressure pipeline is avoided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a take plunger case of pressure boost function, solve the plunger case and export bigger thrust for realizing, have the problem that raw materials cost increases and hydro-cylinder risk increases.
The utility model provides a technical scheme that its technical problem adopted is:
a plunger cylinder with a pressurizing function is provided, which comprises
A cylinder barrel, a plunger cavity is formed in the cylinder barrel, a first oil inlet hole is formed at the left end of the cylinder barrel, the first oil inlet hole is communicated with the plunger cavity;
one end of the plunger rod is inserted into the plunger cavity and forms sliding sealing fit with the cylinder barrel, and the other end of the plunger rod is provided with a cylinder bottom cover; a rod cavity and a pressurization cavity are formed in the plunger rod, the rod cavity is communicated with the plunger cavity, a second oil inlet hole is formed in the cylinder bottom cover, and the second oil inlet hole is communicated with a rodless cavity in the pressurization cavity; the plunger rod is provided with an oil outlet, one end of the oil outlet is communicated with a rod cavity in the pressurizing cavity, and the other end of the oil outlet is arranged on the bottom cover of the cylinder;
one end of the pressurizing rod is positioned in the rod cavity, and the other end of the pressurizing rod is positioned in the pressurizing cavity and is connected with the piston in the pressurizing cavity;
the first oil inlet hole and the second oil inlet hole are connected with an oil inlet main pipe;
the oil liquid contact area of the piston in the rodless cavity is larger than the sectional area of the booster rod.
Specifically, as an optional implementation manner in this embodiment, the sliding sealing structure between the plunger rod and the cylinder barrel is:
the inner guide sleeve is arranged in a plunger cavity of the cylinder barrel, the outer wall of the inner guide sleeve is in step fit with the inner wall of the plunger cavity to limit the inner guide sleeve to move inwards, and the inner wall of the inner guide sleeve is in sliding fit with the plunger rod;
the inner end of the outer guide sleeve is positioned in the plunger cavity and is suitable for abutting against the combined sealing piece; the outer end of the cylinder barrel extends out of the cylinder barrel and is suitable for abutting against the gland;
and the combined sealing piece is positioned between the inner guide sleeve and the outer guide sleeve.
The pressurizing rod is guided through the inner guide sleeve and the outer guide sleeve, the guide contact area is increased, the pressurizing rod moves more stably, and the combined sealing element is arranged between the two guide sleeves, so that the mounting structure of the combined sealing element can be more stable and reliable.
Specifically, as an optional implementation manner in this embodiment, the combination sealing member includes
One end of the elastic body is abutted with the end face of the inner guide sleeve, and the other end of the elastic body forms a conical convex surface and is suitable for abutting with the V-shaped sealing ring;
one end of the support ring is abutted with the outer guide sleeve, and the other end of the support ring forms a conical concave surface and is suitable for abutting with the V-shaped sealing ring;
and the V-shaped sealing rings are arranged between the elastic body and the support ring and are stacked together.
Specifically, as an optional implementation manner in this embodiment, the pressing cover is sleeved outside the outer guide sleeve, and forms a step fit with the outer guide sleeve;
a plurality of locking bolts penetrate through the pressing cover and then are connected with the cylinder barrel, so that the pressing cover is locked on the cylinder barrel.
Furthermore, the oil liquid contact area of the piston in the rodless cavity is N times of the sectional area of the booster rod;
and N is more than or equal to 2.
The utility model has the advantages that:
the utility model discloses a take plunger cylinder of pressure boost function need not to increase the hydro-cylinder and can save raw and other materials cost greatly, and inside the plunger was arranged in to the pressure boost pole, did not change former plunger cylinder appearance basically, overall structure is very compact. The displacement of the hydraulic pump with unchanged cylinder diameter of the oil cylinder is only the same as that of the prior hydraulic pump, and an external supercharger and an external pipeline are not required to be added, so that the safety and the stability are higher.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a sectional view of the plunger cylinder with a pressurizing function according to the present invention;
FIG. 2 is a view of the sliding seal between the plunger rod and the cylinder;
FIG. 3 is a schematic view of a composite seal;
wherein, 1, cylinder barrel, 2, plunger rod, 21, rod cavity, 22, pressure increasing cavity;
3. a booster rod 31, a piston;
4. the combined sealing element 41, the elastic body 42, the V-shaped sealing ring 43 and the support ring;
51. an inner guide sleeve 52, an outer guide sleeve;
61. first inlet port, 62, second inlet port, 63, oil outlet.
7. A cylinder bottom cover 8 and a gland.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in FIGS. 1 to 3, a plunger cylinder with a pressurizing function comprises
The cylinder barrel 1 is provided with a plunger cavity formed in the cylinder barrel 1, the left end of the cylinder barrel 1 is provided with a first oil inlet 61, and the first oil inlet 61 is communicated with the plunger cavity;
one end of the plunger rod 2 is inserted into the plunger cavity and forms sliding sealing fit with the cylinder barrel 1, and the other end of the plunger rod is provided with a cylinder bottom cover; a rod cavity 21 and a pressurizing cavity 22 are formed in the plunger rod 2, the rod cavity 21 is communicated with the plunger cavity, a second oil inlet hole 62 is formed in the cylinder bottom cover 7, and the second oil inlet hole 62 is communicated with a rodless cavity in the pressurizing cavity 22; the plunger rod is provided with an oil outlet 63, one end of the oil outlet 63 is communicated with a rod cavity in the pressurization cavity 22, and the other end of the oil outlet 63 is arranged on the cylinder bottom cover 7;
a pressurizing rod 3 having one end positioned in the rod chamber 21 and the other end positioned in the pressurizing chamber 22 and connected to the piston 31 in the pressurizing chamber 22;
the first oil inlet 61 and the second oil inlet 62 are connected with an oil inlet header pipe;
the oil contact area of the piston 31 in the rodless cavity is larger than the sectional area of the booster rod 3.
In this embodiment, a first valve is disposed at an inlet of the first oil inlet 61, and a second valve is disposed at an inlet of the second oil inlet 62.
Specifically, as an alternative embodiment in this embodiment, as shown in fig. 2, the sliding sealing structure between the plunger rod 2 and the cylinder 1 is:
the inner guide sleeve 51 is arranged in a plunger cavity of the cylinder barrel 1, the outer wall of the inner guide sleeve 51 is in step fit with the inner wall of the plunger cavity to limit the inner guide sleeve 51 to move inwards, and the inner wall of the inner guide sleeve 51 is in sliding fit with the plunger rod 2;
an outer guide sleeve 52, the inner end of which is located in the plunger cavity and is adapted to abut against the composite seal 4; the outer end of the cylinder barrel extends out of the cylinder barrel 1 and is suitable for abutting against the gland 8;
and a combined sealing member 4 positioned between the inner guide sleeve 51 and the outer guide sleeve 52.
Specifically, as an alternative embodiment in this embodiment, as shown in fig. 3, the combination sealing member 4 includes
One end of the elastic body 41 is abutted with the end face of the inner guide sleeve 51, and the other end of the elastic body forms a conical convex surface and is suitable for being abutted with the V-shaped sealing ring 42;
a support ring 43, one end of which abuts against the outer guide sleeve 52 and the other end of which forms a conical concave surface and is adapted to abut against the V-shaped seal ring 42;
and a plurality of V-shaped sealing rings 42 arranged between the elastic body 41 and the supporting ring 43, wherein the V-shaped sealing rings 42 are stacked together.
Specifically, as an optional implementation manner in this embodiment, as shown in fig. 2, the pressing cover 8 is sleeved outside the outer guide sleeve 52, and forms a step fit with the outer guide sleeve 52;
a plurality of locking bolts pass through the gland 8 and then are connected with the cylinder barrel 1, so that the gland 8 is locked on the cylinder barrel 1.
In this embodiment, the number of the V-shaped sealing rings 42 is four, and the V-shaped sealing rings are stacked together and clamped between the elastic body 41 and the support ring 43, and the combined sealing member 4 is stacked together in the axial direction, so that the inner Zhu Sai cavity is convenient to install, the installation process includes sequentially installing the inner guide sleeve 51, the elastic member, each V-shaped sealing ring 42, the support ring 43 and the outer guide sleeve 52, and finally installing the upper gland 8 and locking the upper gland by the locking bolt.
Specifically, as an optional implementation manner in this embodiment, the oil-contacting area of the piston 31 in the rodless cavity is N times the sectional area of the booster rod 3;
and N is more than or equal to 2.
In this embodiment, N is 4, i.e., a quadruple relationship.
The utility model discloses take plunger cylinder theory of operation of pressure boost function:
the first valve is opened, hydraulic oil is input into the first oil inlet hole 61, the hydraulic oil enters the plunger cavity, the hydraulic oil drives the plunger rod 2 to extend out, when the plunger rod 2 extends out to reach the position and contacts with a load, the first valve is closed, then the second valve is opened, the hydraulic oil starts to be input into the second oil inlet hole 62, the hydraulic oil enters the pressurization intensity-increasing rodless cavity, as the oil contact area of the piston 31 in the rodless cavity is larger than the sectional area of the pressurization rod 3, the pressurization rod 3 can be driven to extend out towards the plunger cavity, the hydraulic oil in the rod cavity is discharged through the oil outlet hole 63, the pressure inside the plunger cavity is greatly pressurized compared with the pressure (the pressurization ratio of the pressurization cylinder), and the pressurization of the plunger cylinder is realized.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A plunger cylinder with a supercharging function is characterized by comprising
The plunger pump comprises a cylinder barrel, a plunger cavity, a first oil inlet, a second oil inlet and a plunger, wherein the plunger cavity is formed in the cylinder barrel;
one end of the plunger rod is inserted into the plunger cavity and forms sliding sealing fit with the cylinder barrel, and the other end of the plunger rod is provided with a cylinder bottom cover; a rod cavity and a pressurization cavity are formed in the plunger rod, the rod cavity is communicated with the plunger cavity, a second oil inlet hole is formed in the cylinder bottom cover, and the second oil inlet hole is communicated with a rodless cavity in the pressurization cavity; the plunger rod is provided with an oil outlet, one end of the oil outlet is communicated with a rod cavity in the pressurizing cavity, and the other end of the oil outlet is arranged on the bottom cover of the cylinder;
one end of the pressurizing rod is positioned in the rod cavity, and the other end of the pressurizing rod is positioned in the pressurizing cavity and is connected with the piston in the pressurizing cavity;
the first oil inlet hole and the second oil inlet hole are connected with an oil inlet main pipe;
the oil liquid contact area of the piston in the rodless cavity is larger than the sectional area of the booster rod.
2. The plunger cylinder with supercharging function according to claim 1,
the sliding sealing structure between the plunger rod and the cylinder barrel is as follows:
the inner guide sleeve is arranged in a plunger cavity of the cylinder barrel, the outer wall of the inner guide sleeve is in step fit with the inner wall of the plunger cavity to limit the inner guide sleeve to move inwards, and the inner wall of the inner guide sleeve is in sliding fit with the plunger rod;
the inner end of the outer guide sleeve is positioned in the plunger cavity and is suitable for abutting against the combined sealing piece; the outer end of the cylinder barrel extends out of the cylinder barrel and is suitable for abutting against the gland;
and the combined sealing element is positioned between the inner guide sleeve and the outer guide sleeve.
3. The plunger cylinder with supercharging function according to claim 2,
the combined sealing member comprises
One end of the elastic body is abutted with the end face of the inner guide sleeve, and the other end of the elastic body forms a conical convex surface and is suitable for being abutted with the V-shaped sealing ring;
one end of the support ring is abutted with the outer guide sleeve, and the other end of the support ring forms a conical concave surface and is suitable for abutting with the V-shaped sealing ring;
and the V-shaped sealing rings are arranged between the elastic body and the support ring and are stacked together.
4. The plunger cylinder with supercharging function according to claim 2,
the gland is sleeved outside the outer guide sleeve and forms step fit with the outer guide sleeve;
a plurality of locking bolts penetrate through the pressing cover and then are connected with the cylinder barrel, so that the pressing cover is locked on the cylinder barrel.
5. The plunger cylinder with supercharging function according to claim 1,
the oil liquid contact area of the piston in the rodless cavity is N times of the sectional area of the booster rod;
and N is more than or equal to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222714249.1U CN218882652U (en) | 2022-10-14 | 2022-10-14 | Plunger type cylinder with pressurizing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222714249.1U CN218882652U (en) | 2022-10-14 | 2022-10-14 | Plunger type cylinder with pressurizing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218882652U true CN218882652U (en) | 2023-04-18 |
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ID=85947153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222714249.1U Active CN218882652U (en) | 2022-10-14 | 2022-10-14 | Plunger type cylinder with pressurizing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218882652U (en) |
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2022
- 2022-10-14 CN CN202222714249.1U patent/CN218882652U/en active Active
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