CN216922656U - Inner pressurizing type thrust mechanism with variable thrust - Google Patents
Inner pressurizing type thrust mechanism with variable thrust Download PDFInfo
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- CN216922656U CN216922656U CN202220145629.5U CN202220145629U CN216922656U CN 216922656 U CN216922656 U CN 216922656U CN 202220145629 U CN202220145629 U CN 202220145629U CN 216922656 U CN216922656 U CN 216922656U
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Abstract
The utility model relates to the technical field of mechanical thrust mechanisms, in particular to an internal pressurization type thrust mechanism with variable thrust, which comprises a variable pressure cylinder barrel, a variable pressure front end cover and a variable pressure rear end cover, wherein a variable pressure piston rod is assembled in the variable pressure cylinder barrel, one end of the variable pressure piston rod, which is close to the variable pressure rear end cover, is provided with a variable pressure piston, and the other end of the variable pressure piston rod penetrates through the variable pressure front end cover and extends outwards; according to the utility model, the pressurization cylinder barrel is arranged in the pressure-changing piston rod, and the pressurization oil cavity is extruded by the pressurization piston rod, so that oil in the pressurization oil cavity enters the pressure-changing rodless cavity, and high-pressure extrusion of the pressure-changing piston and the pressure-changing piston rod is realized.
Description
Technical Field
The utility model relates to the technical field of mechanical thrust mechanisms, in particular to an internal pressurization type thrust mechanism with variable thrust.
Background
In the construction process, the engineering machinery often meets the operation conditions of breaking and dismantling various firm buildings, mining ores and the like, and requires different propelling speeds and thrusts under different working conditions. The existing thrust mechanism is large in size and weight, not beneficial to quick assembly, disassembly and transportation, and long in installation time during use, and low in efficiency, and the working state cannot be adjusted according to actual working conditions during working.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide an internal pressurizing type thrust mechanism with variable thrust, which effectively reduces the size and the weight of the conventional thrust mechanism, can adjust the working state of the thrust mechanism according to requirements so as to adapt to different working condition requirements, improve the working efficiency and save the working time.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an inner supercharged thrust mechanism with variable thrust comprises a transformation cylinder barrel, a transformation front end cover connected to one end of the transformation cylinder barrel and a transformation rear end cover connected to the other end of the transformation cylinder barrel, wherein a transformation piston rod is assembled in the transformation cylinder barrel, a transformation piston is arranged at one end, close to the transformation rear end cover, of the transformation piston rod, the other end of the transformation piston rod penetrates through the transformation front end cover and extends outwards, and the transformation piston divides the transformation cylinder barrel into a transformation rodless cavity close to the transformation rear end cover and a transformation rod cavity close to the transformation front end cover;
the transformation piston rod is provided with a rod cavity with an opening facing the transformation rear end cover, a pressurization cylinder barrel extending along the length direction of the rod cavity is fixed in the rod cavity, the inner end of the pressurization cylinder barrel is provided with a pressurization front end cover, a pressurization oil cavity is formed by enclosing the pressurization front end cover and the cavity bottom of the rod cavity and is communicated with the transformation rodless cavity,
a supercharging piston rod and a supercharging piston arranged at the end part of the supercharging piston rod are assembled in the supercharging cylinder, the inner end of the supercharging piston rod penetrates through the supercharging front end cover and extends into the supercharging oil cavity, and the supercharging piston divides the supercharging cylinder into a supercharging rodless cavity close to the transformation rear end cover and a supercharging rod cavity close to the transformation front end cover;
the oil is supplied to the variable-pressure rodless cavity, the variable-pressure piston rod is pushed to enable the variable-pressure piston rod to move towards external low thrust, or the oil is supplied to the pressurizing rodless cavity, the pressurizing piston rod is pushed to squeeze the pressurizing oil cavity, and the outward high thrust movement of the variable-pressure piston rod is achieved.
Preferably, a first pressure transformation oil port is arranged on the pressure transformation rear end cover and communicated with the pressure transformation rodless cavity, and a second pressure transformation oil port is arranged on the pressure transformation front end cover and communicated with the pressure transformation rod cavity.
Preferably, one end of the pressurizing cylinder barrel, which is far away from the pressurizing front end cover, is provided with a pressurizing rear end cover, the pressurizing rear end cover is provided with a first pressurizing oil port communicated with the pressurizing rodless cavity, and the pressurizing rear end cover is also provided with a second pressurizing oil port communicated with the pressurizing rod cavity.
Preferably, the pressure boost rear end cover is fastened to the pressure swing rear end cover via a bolt lock.
Compared with the prior art, the utility model has the following technical effects:
the variable-thrust internal pressurization type thrust mechanism provided by the utility model has the advantages that the pressurization cylinder barrel is arranged in the variable-pressure piston rod, so that two different thrusts can be realized under the condition that the system pressure is not changed.
Specific supercharging principles are exemplified as follows:
for example, when the system pressure is 25MPa, 25MPa hydraulic oil is pumped into the transformation rodless cavity to push the transformation piston, so that the transformation piston and the transformation piston rod output 25MPa pressure outwards;
when larger thrust needs to be obtained, the 25MPa hydraulic oil is pumped into the supercharging rodless cavity, and the thrust borne by the supercharging piston is F ═ P multiplied by S;
the booster piston and the booster piston rod are connected into a whole, and the same stress is F ═ F1；
At the moment, the thrust of a pressurizing piston rod existsF1＝P1×S1；
The sectional area of the supercharging piston is 4 times of that of the supercharging piston rod, namely S is 4S1(ii) a Substituting the formula to obtain P14P, i.e. 25MPa x 4 100MPa piston rod right end pressure P1Is 100 MPa; because the pressurizing oil cavity is communicated with the transformation rodless cavity, the pressure intensity of the transformation rodless cavity is also 100MPa according to the hydraulic pressure intensity principle, and the thrust of the transformation piston rod is increased.
That is, in the thrust mechanism provided by the utility model, by converting the oil path, when the pressurizing piston rod in the pressurizing cylinder barrel is used for extruding oil to the pressurizing oil cavity and further to the pressure-changing rodless cavity, larger thrust can be obtained, and the thrust requirements of the thrust mechanism provided by the utility model under different working conditions can be further realized.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic diagram illustrating a variable thrust internal booster thrust mechanism according to an embodiment of the present invention;
the reference numbers in the figures illustrate: 10. transforming a cylinder barrel; 101. a voltage transformation rodless cavity; 102. a voltage transformation rod cavity; 11. transforming the front end cover; 111. a second pressure changing oil port; 12. a rear end cover is used for transforming the voltage; 121. a first pressure changing oil port; 20. a variable-pressure piston rod; 21. a variable pressure piston; 22. a pressurized oil chamber; 30. a pressurizing cylinder barrel; 31. a pressurized front end cap; 32. a pressurized rear end cap; 321. a first pressure oil port; 322. a second oil pressurization port; 40. a booster piston rod; 41. a booster piston.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further clarified by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As described above, with reference to fig. 1, the present invention provides an internal booster-type thrust mechanism with variable thrust, which includes a transformation cylinder 10, a transformation front end cover 11 connected to one end of the transformation cylinder 10, and a transformation rear end cover 12 connected to the other end of the transformation cylinder 10;
a transformation piston rod 20 is assembled in the transformation cylinder barrel 10, one end of the transformation piston rod 20, which is close to the transformation rear end cover 12, is provided with a transformation piston 21, the other end of the transformation piston rod 20 penetrates through the transformation front end cover 11 and extends outwards, and the transformation piston 21 divides the transformation cylinder barrel 10 into a transformation rodless cavity 101 which is close to the transformation rear end cover 12 and a transformation rod cavity 102 which is close to the transformation front end cover 11;
when the variable-pressure rodless cavity is used specifically, the variable-pressure piston 21 can be pushed and the variable-pressure piston rod 20 is driven to move outwards by supplying oil into the variable-pressure rodless cavity 101, and the variable-pressure piston 21 can be pushed and the variable-pressure piston rod 20 is driven to move inwards to reset by supplying oil into the variable-pressure rodless cavity 102.
The transformation piston rod 20 is provided with a rod cavity with an opening facing the transformation rear end cover 12, a pressurization cylinder barrel 30 extending along the length direction of the rod cavity is fixed in the rod cavity, the inner end of the pressurization cylinder barrel 30 is provided with a pressurization front end cover 31, a pressurization oil cavity 22 is formed by enclosing the pressurization front end cover 31 and the cavity bottom of the rod cavity, the pressurization oil cavity 22 is communicated with the transformation rodless cavity 101,
a supercharging piston rod 40 and a supercharging piston 41 arranged at the end part of the supercharging piston rod 40 are assembled in the supercharging cylinder barrel 30, the inner end of the supercharging piston rod 40 penetrates through the supercharging front end cover 31 and extends into the supercharging oil cavity 22, and the supercharging cylinder barrel 30 is divided by the supercharging piston 41 to form a supercharging rodless cavity 301 close to the transformation rear end cover 12 and a supercharging rod cavity 302 close to the transformation front end cover 11;
oil is supplied to the pressure-changing rodless cavity 101, the pressure-changing piston rod 20 is pushed to move towards the outer low thrust, or oil is supplied to the pressure-increasing rodless cavity 301, the pressure-increasing piston rod 40 is pushed to extrude the pressure-increasing oil cavity 22, and the outward high thrust movement of the pressure-changing piston rod 20 is realized.
In the technical scheme provided by the utility model, the boosting cylinder barrel 30 is arranged in the pressure-changing piston rod 20, the boosting oil cavity 22 is extruded by the boosting piston rod 40, so that oil in the boosting oil cavity 22 enters the pressure-changing rodless cavity 101, and the high-pressure extrusion of the pressure-changing piston 21 and the pressure-changing piston rod 20 is realized.
According to the thrust mechanism provided by the utility model, two different thrusts can advance without changing the system pressure. In a low-resistance working state, the transformation rodless cavity 101 is filled with oil to work in a lower pressure state, in a specific embodiment of the utility model, the lower pressure is 25MPa, and the transformation piston rod 20 can be pushed forwards quickly; when a high-resistance working state is met, oil can be injected into the supercharging rodless cavity 301 through oil circuit conversion, so that the structure of the pressure varying system is pressurized to a high-pressure state; in addition, in the utility model, the pressurizing part is arranged in the pressure transformation part, namely, the internal pressurizing type, the occupied space is small, and the structure weight is reduced.
The thrust mechanism provided by the utility model can be widely applied to breaking and dismantling various firm buildings and ore mining machinery. The effects of improving efficiency and saving cost are achieved.
Further, in the present invention, a first pressure swing oil port 121 is disposed on the pressure swing rear end cover 12 and is communicated with the pressure swing rodless cavity 101, and a second pressure swing oil port 111 is disposed on the pressure swing front end cover 11 and is communicated with the pressure swing rod cavity 102.
Further, in the present invention, one end of the booster cylinder barrel 30, which is far away from the booster front end cover 31, is provided with a booster rear end cover 32, the booster rear end cover 32 is provided with a first booster oil port 321 communicated with the booster rodless cavity 301, and is further provided with a second booster oil port 322 communicated with the booster rod cavity 302.
During pressure change, oil is injected into the pressurization rodless cavity 301 through the first pressurization oil port 321, the pressurization piston 41 and the pressurization piston rod 40 are pushed to move towards the pressurization oil cavity 22, the extrusion oil enters the pressure change rodless cavity 101, and the pressure change piston 21 and the pressure change piston rod 20 are further pushed to move forwards; and oil is injected into the pressurizing rod cavity 302 through the second pressurizing oil port 322, so that the pressurizing piston 41 and the pressurizing piston rod 40 are pushed to retreat from the pressurizing oil cavity 22 to realize resetting.
Further, in the present invention, the supercharging end cap 32 is fastened to the transformation end cap 12 by bolt locking.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The inner booster type thrust mechanism with variable thrust is characterized by comprising a transformation cylinder barrel (10), a transformation front end cover (11) connected to one end of the transformation cylinder barrel and a transformation rear end cover (12) connected to the other end of the transformation cylinder barrel, wherein a transformation piston rod (20) is assembled in the transformation cylinder barrel (10), one end, close to the transformation rear end cover (12), of the transformation piston rod (20) is provided with a transformation piston (21), the other end of the transformation piston rod penetrates through the transformation front end cover (11) and extends outwards, and the transformation piston (21) divides the transformation cylinder barrel (10) into a transformation rodless cavity (101) close to the transformation rear end cover (12) and a transformation rod cavity (102) close to the transformation front end cover (11);
the transformation piston rod (20) is provided with a rod cavity with an opening facing the transformation rear end cover (12), a pressurization cylinder barrel (30) extending along the length direction of the rod cavity is fixed in the rod cavity, the inner end of the pressurization cylinder barrel (30) is provided with a pressurization front end cover (31), a pressurization oil cavity (22) is formed by enclosing the pressurization front end cover (31) and the cavity bottom of the rod cavity, the pressurization oil cavity (22) is communicated with the transformation rodless cavity (101),
a boosting piston rod (40) and a boosting piston (41) arranged at the end part of the boosting piston rod (40) are assembled in the boosting cylinder barrel (30), the inner end of the boosting piston rod (40) penetrates through the boosting front end cover (31) and extends into the boosting oil cavity (22), and the boosting piston (41) divides the boosting cylinder barrel (30) into a boosting rodless cavity (301) close to the variable-pressure rear end cover (12) and a boosting rod cavity (302) close to the variable-pressure front end cover (11);
the oil is supplied to the transformation rodless cavity (101), the transformation piston rod (20) is pushed to enable the transformation piston rod to move towards the outer low thrust, or the oil is supplied to the pressurization rodless cavity (301), the pressurization piston rod (40) is pushed to squeeze the pressurization oil cavity (22), and the transformation piston rod (20) moves towards the outer high thrust.
2. The variable-thrust internal-pressurization type thrust mechanism according to claim 1, wherein a first pressure-varying oil port (121) is arranged on the pressure-varying rear end cover (12) and communicated with the pressure-varying rodless cavity (101), and a second pressure-varying oil port (111) is arranged on the pressure-varying front end cover (11) and communicated with the pressure-varying rod cavity (102).
3. The inner booster type thrust mechanism with variable thrust according to claim 1, wherein one end of the booster cylinder barrel (30) far away from the booster front end cover (31) is provided with a booster rear end cover (32), the booster rear end cover (32) is provided with a first booster oil port (321) communicated with the booster rodless cavity (301), and a second booster oil port (322) communicated with the booster rod cavity (302).
4. The variable thrust internal booster thrust mechanism of claim 3, wherein the booster rear end cover (32) is bolted to the variable pressure rear end cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220145629.5U CN216922656U (en) | 2022-01-19 | 2022-01-19 | Inner pressurizing type thrust mechanism with variable thrust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220145629.5U CN216922656U (en) | 2022-01-19 | 2022-01-19 | Inner pressurizing type thrust mechanism with variable thrust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922656U true CN216922656U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220145629.5U Active CN216922656U (en) | 2022-01-19 | 2022-01-19 | Inner pressurizing type thrust mechanism with variable thrust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922656U (en) |
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2022
- 2022-01-19 CN CN202220145629.5U patent/CN216922656U/en active Active
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