CN215830863U - Improved mud cylinder assembly of marine dredge pump - Google Patents
Improved mud cylinder assembly of marine dredge pump Download PDFInfo
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- CN215830863U CN215830863U CN202121884437.8U CN202121884437U CN215830863U CN 215830863 U CN215830863 U CN 215830863U CN 202121884437 U CN202121884437 U CN 202121884437U CN 215830863 U CN215830863 U CN 215830863U
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Abstract
The utility model relates to the technical field of river channel dredging equipment, in particular to a mud cylinder assembly of an improved marine dredge pump, which comprises a mud cylinder body, a piston arranged in the mud cylinder body, a mud cylinder cover plate connected to one end of the mud cylinder body and an oil cylinder part vertically connected to the outer end surface of the mud cylinder cover plate and used for driving the piston to axially move in the mud cylinder body, wherein the front end of a piston rod of the oil cylinder part is connected with the piston; an outer spigot is arranged at the position, far away from the mud cylinder cover plate, of the outer circle of the piston, an annular rubber sealing piece is mounted on the outer spigot, and the outer circle of the annular rubber sealing piece is in elastic contact with the inner hole of the mud cylinder body. The utility model improves the service performance, service life and maintainability of the mud cylinder component.
Description
Technical Field
The utility model relates to the technical field of river channel dredging equipment, in particular to a mud cylinder assembly of an improved marine dredge pump.
Background
The river channel dredging equipment is mechanical equipment for dredging river channel by removing bottom sludge in river channel.
The river sediment generally has the characteristics of small layer thickness, low density, high water content, easy diffusion under disturbance and the like. In addition, urban and rural river channels are narrow in water surface, tortuous, small in water depth, multiple in bridges and low in clearance, and particularly rural river channels are provided with various garbage and sundries. Due to the characteristics of urban and rural river channels, conventional dredging equipment such as a grab dredger and a cutter suction dredger has poor navigability and is easy to cause secondary pollution to water bodies.
In view of the above problems, the prior art has developed a dredging apparatus capable of preventing secondary pollution during dredging. The patent technology related to the environment-friendly dredging equipment comprises an ecological dredging ship (No. CN207749559U) and a mud cylinder component (No. CN207750227U) of a mud pump for a ship.
The patent technology is successfully applied to the environment-friendly hydraulic suction-discharge type dredging ship newly researched and manufactured by our company, and plays a good role in dredging river channels in many places in China.
In order to further improve the performance, the service life and the maintainability of the environment-friendly hydraulic suction and discharge type dredging ship, the patent technology is further improved on the basis.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an improved mud cylinder assembly of a mud pump for a ship, aiming at improving the prior mud cylinder assembly so as to improve the service performance, the service life and the maintainability of the mud cylinder assembly. The specific technical scheme is as follows:
the mud cylinder assembly of the improved mud pump for the ship comprises a mud cylinder body, a piston arranged in the mud cylinder body, a mud cylinder cover plate connected to one end of the mud cylinder body and an oil cylinder component which is vertically connected to the outer end face of the mud cylinder cover plate and is used for driving the piston to axially move in the mud cylinder body, wherein the front end of a piston rod of the oil cylinder component is connected with the piston; an outer spigot is arranged at the position, far away from the mud cylinder cover plate, of the outer circle of the piston, an annular rubber sealing piece is mounted on the outer spigot, and the outer circle of the annular rubber sealing piece is in elastic contact with the inner hole of the mud cylinder body.
In order to improve the maintainability of the mud cylinder assembly, the further improvement scheme is that: the mud cylinder body includes the mud cylinder shell and connects the mud cylinder section of thick bamboo in the mud cylinder shell hole, the mud cylinder section of thick bamboo with the connection between the mud cylinder shell is for dismantling the connection.
Preferably, the fixing mode of the annular rubber sealing element in the utility model is as follows: and an annular baffle is arranged on the end face of the piston far away from the mud cylinder cover plate, and the annular baffle axially presses the annular rubber sealing element against an external spigot of the piston through a compression screw.
In the utility model, the excircle part of the annular rubber sealing element comprises a section of excircle cone and a section of excircle cylinder connected with one end of a small head of the section of excircle cone, wherein the section of excircle cylinder is positioned on the excircle of the annular rubber sealing element at one side close to the direction of the mud cylinder cover plate, and the section of excircle cone is positioned on the excircle of the annular rubber sealing element at one side far away from the direction of the mud cylinder cover plate; two circumferential annular grooves which are arranged at intervals are arranged on the section of outer cylinder, and an arc transition groove is arranged between the section of outer cone and the section of outer cylinder.
Preferably, the outer diameter of the large end of the section of the outer cone is provided with an arc chamfer.
Preferably, an end face annular groove is formed in the end face, far away from the mud cylinder cover plate, of the annular rubber sealing element, and the cross section of the end face annular groove is in a V shape.
Preferably, the annular rubber seal is an annular urethane rubber seal.
As a further improvement of the utility model, an anti-rotation guide rod parallel to the piston rod is mounted on the piston, a mounting hole is formed in the mud cylinder cover plate, a guide seat is fixed at the mounting hole of the mud cylinder cover plate, an anti-rotation guide hole is formed in the guide seat, and the anti-rotation guide rod is inserted into the anti-rotation guide hole and is in clearance fit with the anti-rotation guide hole.
According to the utility model, the oil cylinder part comprises an oil cylinder body and the piston rod movably arranged in the oil cylinder body, the mud cylinder cover plate is provided with a central inner hole, and the excircle of one end of the oil cylinder body is connected in the central inner hole of the mud cylinder cover plate and is fixed with the mud cylinder cover plate through welding.
In the utility model, the piston rod is connected with the piston through a spherical kinematic pair, the spherical kinematic pair comprises an inner spherical hole arranged on the piston and an outer spherical surface arranged on the piston rod, and the inner spherical hole is connected with the outer spherical surface in a sliding fit manner.
In the utility model, a support sleeve for slidably positioning the piston rod is arranged at the inner hole position at the front end of the oil cylinder body of the oil cylinder component, an end socket is arranged at the inner hole position at the rear end of the oil cylinder body of the oil cylinder component, and the rear end of the piston rod is connected with a sliding sleeve in sliding fit with the inner hole of the oil cylinder body.
In the utility model, the front end part and the rear end part of the oil cylinder body of the oil cylinder component are respectively provided with a front end oil inlet and a rear end oil inlet.
According to the utility model, connecting flanges are arranged on the excircle of two ends of the mud cylinder shell, and a mounting foot plate is arranged at the lower part of the mud cylinder shell.
The utility model has the beneficial effects that:
first, according to the mud cylinder assembly of the improved marine dredge pump, the large annular rubber sealing element is arranged on the piston and is in elastic contact with the inner hole of the mud cylinder body, so that on one hand, the mud sucking and discharging performance of the mud cylinder assembly is improved, on the other hand, mud can be prevented from entering a gap between the piston and the mud cylinder body, the abrasion of the piston and the mud cylinder body is reduced, and the service life of the mud cylinder assembly is prolonged.
Secondly, the mud cylinder assembly of the improved mud pump for the ship comprises a mud cylinder shell and a mud cylinder barrel, and the mud cylinder barrel can be conveniently replaced after being worn, so that the maintainability of the mud cylinder assembly is improved.
Thirdly, the outer circle of the annular rubber sealing element is in a combined design shape of the outer cone, the outer cylinder and the circumferential annular groove, the sealing performance is good, and the resistance of the piston in moving is small, so that the mud suction and discharge performance of the piston on the mud cylinder assembly is further improved.
Fourthly, according to the mud cylinder assembly of the improved marine dredge pump, the guide seat is arranged on the mud cylinder cover plate, and the anti-rotation guide hole can be conveniently replaced after being abraded.
Drawings
FIG. 1 is a schematic structural view of a mud cylinder assembly of an improved dredge pump for ships according to the present invention;
fig. 2 is a schematic view of the structure of the annular rubber seal in fig. 1.
In the figure: 1. the mud cylinder comprises a mud cylinder body, 2, a piston, 3, a mud cylinder cover plate, 4, an oil cylinder component, 5, an outer spigot, 6, an annular rubber sealing element, 7, a mud cylinder shell, 8, a mud cylinder barrel, 9, an annular baffle, 10, a compression screw, 11, an outer cone, 12, an outer cylinder, 13, a circumferential annular groove, 14, an arc transition groove, 15, an arc chamfer, 16, an end surface annular groove, 17, an anti-rotation guide rod, 18, a mounting hole, 19, a guide seat, 20, an anti-rotation guide hole, 21, an oil cylinder body, 22, a piston rod, 23, a spherical kinematic pair, 24, a connecting flange, 25, a mounting foot plate, 26, a support sleeve, 27, a seal head, 28, a tail oil inlet, 29, a front oil inlet, 30 and a sliding sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of a mud cylinder assembly of an improved dredge pump for ships, which comprises a mud cylinder body 1, a piston 2 arranged in the mud cylinder body 1, a mud cylinder cover plate 3 connected to one end of the mud cylinder body 1, and a cylinder part 4 vertically connected to the outer end surface of the mud cylinder cover plate 3 and used for driving the piston 2 to move axially in the mud cylinder body 1, wherein the front end of a piston rod 22 of the cylinder part 4 is connected with the piston 2; keep away from on the piston 2 the excircle position of 3 directions of mud cylinder apron is provided with outer tang 5, install annular rubber seal 6 on the outer tang 5, the excircle of annular rubber seal 6 with the hole elastic contact of mud cylinder body 1.
In order to improve the maintainability of the mud cylinder assembly, the further improvement scheme is that: the mud cylinder body 1 comprises a mud cylinder shell 7 and a mud cylinder barrel 8 connected in an inner hole of the mud cylinder shell 7, and the mud cylinder barrel 8 is detachably connected with the mud cylinder shell 7.
Preferably, in this embodiment, the fixing manner of the annular rubber seal 6 is: an annular baffle 9 is arranged on the end face of the piston 2 far away from the mud cylinder cover plate 3, and the annular baffle 9 axially presses the annular rubber sealing piece 6 against the external spigot 5 of the piston 2 through a compression screw 10.
In this embodiment, the outer circle portion of the annular rubber sealing element 6 comprises a section of outer cone 11 and a section of outer cylinder 12 connected to the small end of the section of outer cone 11, the section of outer cylinder 12 is located on the outer circle of the annular rubber sealing element 6 on the side close to the direction of the mud cylinder cover plate 3, and the section of outer cone 11 is located on the outer circle of the annular rubber sealing element 6 on the side far from the direction of the mud cylinder cover plate 3; two circumferential annular grooves 13 which are arranged at intervals are arranged on the section of outer cylinder 12, and an arc transition groove 14 is arranged between the section of outer cone 11 and the section of outer cylinder 12.
Preferably, the outer diameter of the large end of the section of the outer cone 11 is provided with a circular arc chamfer 15.
Preferably, an end face annular groove 16 is formed in the end face of the annular rubber sealing element 6 far away from the direction of the mud cylinder cover plate 3, and the cross section of the end face annular groove 16 is in a V shape.
Preferably, the annular rubber seal 6 is an annular urethane rubber seal.
As a further improvement of this embodiment, an anti-rotation guide rod 17 parallel to the piston rod 22 is installed on the piston 2, a mounting hole is provided on the mud cylinder cover plate 3, a guide seat 19 is fixed at the mounting hole of the mud cylinder cover plate 3, an anti-rotation guide hole 20 is provided on the guide seat 19, and the anti-rotation guide rod 17 is inserted into the anti-rotation guide hole 20 and is in clearance fit with the anti-rotation guide hole 20.
In this embodiment, the cylinder part 4 includes a cylinder body 21 and a piston rod 22 movably disposed inside the cylinder body 21, the mud cylinder cover plate 3 is provided with a central inner hole, and an outer circle of one end of the cylinder body 21 is connected to the central inner hole of the mud cylinder cover plate 3 and fixed to the mud cylinder cover plate 3 by welding.
In this embodiment, the piston rod 22 is connected to the piston 2 through a spherical kinematic pair 23, the spherical kinematic pair 23 includes an inner spherical hole provided on the piston 2 and an outer spherical surface provided on the piston rod 22, and the inner spherical hole is connected to the outer spherical surface in a sliding fit manner.
In this embodiment, the inner hole position of the front end of the oil cylinder body 21 of the oil cylinder component 4 is provided with a supporting sleeve 26 for slidably positioning the piston rod 22, the inner hole position of the rear end of the oil cylinder body 21 of the oil cylinder component 4 is provided with a sealing head 27, and the rear end of the piston rod 22 is connected with a sliding sleeve 30 in sliding fit with the inner hole of the oil cylinder body 21.
In this embodiment, a front oil inlet 29 and a rear oil inlet 28 are respectively disposed at the front end and the rear end of the cylinder body 21 of the cylinder part 4.
In this embodiment, the excircle of the two ends of the mud cylinder shell 7 is provided with a connecting flange 24, and the lower part of the mud cylinder shell 7 is provided with a mounting foot plate 25.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The mud cylinder assembly of the improved mud pump for the ship is characterized by comprising a mud cylinder body, a piston arranged in the mud cylinder body, a mud cylinder cover plate connected to one end of the mud cylinder body and an oil cylinder component which is vertically connected to the outer end face of the mud cylinder cover plate and is used for driving the piston to axially move in the mud cylinder body, wherein the front end of a piston rod of the oil cylinder component is connected with the piston; an outer spigot is arranged at the position, far away from the mud cylinder cover plate, of the outer circle of the piston, an annular rubber sealing piece is mounted on the outer spigot, and the outer circle of the annular rubber sealing piece is in elastic contact with the inner hole of the mud cylinder body.
2. The improved dredge cylinder assembly of the marine dredge pump of claim 1, wherein the dredge cylinder body comprises a dredge cylinder shell and a dredge cylinder connected in an inner hole of the dredge cylinder shell, and the connection between the dredge cylinder and the dredge cylinder shell is a detachable connection.
3. The dredge cylinder assembly of the improved marine dredge pump of claim 1, characterized in that, the end surface of the piston far away from the dredge cylinder cover plate is provided with an annular baffle, the annular baffle presses the annular rubber sealing element axially against the external spigot of the piston through a compression screw.
4. The dredge cylinder assembly of the improved marine dredge pump of claim 1, characterized in that the outer circle portion of the annular rubber sealing member comprises a section of outer cone and a section of outer cylinder connected to one end of the small head of the section of outer cone, the section of outer cylinder is positioned on one side of the outer circle of the annular rubber sealing member close to the direction of the dredge cylinder cover plate, and the section of outer cone is positioned on one side of the outer circle of the annular rubber sealing member far away from the direction of the dredge cylinder cover plate; two circumferential annular grooves which are arranged at intervals are arranged on the section of outer cylinder, and an arc transition groove is arranged between the section of outer cone and the section of outer cylinder.
5. The improved dredge cylinder assembly of the marine dredge pump of claim 4, wherein the large end outer diameter of the section of outer cone is provided with a circular arc chamfer.
6. The improved dredge cylinder assembly of the marine dredge pump of claim 2, characterized in that the end face of the annular rubber sealing element far from the dredge cylinder cover plate is provided with an end face annular groove, and the cross section of the end face annular groove is V-shaped.
7. The dredge cylinder assembly of an improved dredge pump for ships according to claim 1, characterized in that the annular rubber seal is an annular urethane rubber seal.
8. The improved dredge cylinder assembly of the marine dredge pump of claim 1, characterized in that the piston is equipped with an anti-rotation guide rod parallel to the piston rod, the dredge cylinder cover plate is equipped with a mounting hole, the mounting hole of the dredge cylinder cover plate is fixed with a guide seat, the guide seat is equipped with an anti-rotation guide hole, the anti-rotation guide rod is inserted into the anti-rotation guide hole and is in clearance fit with the anti-rotation guide hole.
9. The improved dredge cylinder assembly of the marine dredge pump of claim 1, wherein the cylinder part comprises a cylinder body and the piston rod movably disposed inside the cylinder body, the dredge cylinder cover plate is provided with a central inner hole, and an outer circle of one end of the cylinder body is connected in the central inner hole of the dredge cylinder cover plate and fixed with the dredge cylinder cover plate by welding.
10. The improved dredge cylinder assembly of the marine dredge pump of claim 9, characterized in that the piston rod is connected with the piston through a spherical kinematic pair, the spherical kinematic pair comprises an inner spherical hole provided on the piston, and an outer spherical surface provided on the piston rod, and the inner spherical hole is connected with the outer spherical surface in a sliding fit manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121884437.8U CN215830863U (en) | 2021-08-12 | 2021-08-12 | Improved mud cylinder assembly of marine dredge pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121884437.8U CN215830863U (en) | 2021-08-12 | 2021-08-12 | Improved mud cylinder assembly of marine dredge pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215830863U true CN215830863U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121884437.8U Active CN215830863U (en) | 2021-08-12 | 2021-08-12 | Improved mud cylinder assembly of marine dredge pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215830863U (en) |
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2021
- 2021-08-12 CN CN202121884437.8U patent/CN215830863U/en active Active
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