CN211992757U - Chain pin shaft dismounting tool - Google Patents
Chain pin shaft dismounting tool Download PDFInfo
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- CN211992757U CN211992757U CN202020601929.0U CN202020601929U CN211992757U CN 211992757 U CN211992757 U CN 211992757U CN 202020601929 U CN202020601929 U CN 202020601929U CN 211992757 U CN211992757 U CN 211992757U
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Abstract
The utility model relates to a chain round pin axle extracting tool, this instrument include supporting piece, flange spare, regulation pole and hydraulic means. The bearing piece and the flange piece are arranged at intervals, the flange piece is provided with a first through hole, and the first through hole is used for penetrating through the pin shaft. One end of the adjusting rod is connected with the supporting piece, the other end of the adjusting rod is connected with the flange piece, and the adjusting rod is used for adjusting the distance from the flange piece to the supporting piece. The hydraulic device is arranged on the supporting piece and comprises a force application end, the force application end faces the first through hole and is used for ejecting the pin shaft out of the first through hole. The disassembling tool is simple in operation steps, the maintenance efficiency of the chain structure is improved, the force applied to the pin shaft is uniform, the disassembling process is stable and convenient, and the damage to the pin shaft and the chain plate is reduced. In addition, the tool has simple structure, low processing precision and low manufacturing cost.
Description
Technical Field
The utility model relates to a machine part dismantles technical field, especially relates to a chain pin axle extracting tool.
Background
Currently, many mechanical devices use a chain structure. The chain structure comprises a plurality of chain plates and pin shafts for connecting the chain plates. In the long-term use process of the chain, the chain plates and the pin shafts are worn and need to be maintained or replaced. In the process of maintaining the chain, because the adjacent chain plates are connected together through the pin shaft, the pin shaft needs to be disassembled firstly, and then the chain plates need to be replaced.
The traditional disassembling method is to knock the pin shaft to enable the pin shaft to be separated from the pin hole, and then the chain plate is disassembled. However, the long-time use leads to the tensile deformation of round pin axle and link joint, and then leads to dismantling the process and expend longer time, and has great damage to chain structure, and the chain maintenance is inefficient.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a chain round pin axle extracting tool to above-mentioned technical problem, is favorable to improving the dismantlement efficiency of round pin axle and link joint, and then improves the maintenance efficiency of chain structure, reduces the damage to chain structure.
A chain pin removal tool, comprising:
the bearing piece and the flange piece are arranged at intervals, the flange piece is provided with a first through hole, and the first through hole is used for penetrating through a pin shaft;
one end of the adjusting rod is connected to the supporting piece, the other end of the adjusting rod is connected to the flange piece, and the adjusting rod is used for adjusting the distance from the flange piece to the supporting piece; and
the hydraulic device is arranged on the supporting piece and comprises a force application end, the force application end faces the first through hole, and the force application end is used for ejecting the pin shaft out of the first through hole. Wherein, the hydraulic device is a jack.
The technical solution is further explained below:
in one embodiment, the adjusting rod is a telescopic rod, one end of the telescopic rod is mounted on the supporting member, and the other end of the telescopic rod is mounted on the flange member. The telescopic link is equipped with a plurality of screens including two sections metal pole that dock mutually on one of them metal pole, and is a plurality of the screens are arranged along the length direction interval of metal pole, be equipped with on another metal pole with the screens is corresponding the draw-in groove, the screens card is gone into the draw-in groove can realize the connection of two sections metal pole. When the length of the telescopic rod needs to be adjusted, the clamping positions with different heights are clamped in the clamping grooves.
In one embodiment, the adjustment rod comprises a first end and a second end arranged opposite to each other, the first end is provided with a threaded portion and the first end is screwed to the flange member, and/or the second end is provided with the threaded portion and the second end is screwed to the support member.
In one embodiment, the number of the adjusting rods is at least two, and the adjusting rods are symmetrically arranged on two sides of the hydraulic device.
In one embodiment, the flange member and the support member are arranged in parallel, and the adjusting rod is perpendicular to the flange member and the support member respectively.
In one embodiment, the flange member is provided with a plurality of first through holes, and the first through holes have unequal apertures. The first through holes with different apertures can be matched with the pin shafts with different diameters, the flange piece can be suitable for the pin shafts with more models, and the chain pin shaft dismounting tool can be used for dismounting chains with various models, so that the universality of the chain pin shaft dismounting tool is improved.
In one embodiment, the hydraulic device comprises a first connector, and the hydraulic device is movably arranged on the supporting member through the first connector and is used for enabling the hydraulic device to move to a position aligned with the first through hole.
In one embodiment, the first connecting piece is a sliding strip, the sliding strip is arranged at the end part, far away from the force application end, of the hydraulic device, a sliding groove is formed in the supporting piece, and the sliding strip is arranged in the sliding groove in a sliding mode. The sliding groove is arranged corresponding to the first through hole on the flange piece, and when the hydraulic device slides on the sliding groove, the force application end of the hydraulic device can be aligned to any one of the first through holes.
In one embodiment, the first connecting piece is a bolt fixed at the end of the hydraulic device far away from the force application end; the supporting piece is provided with a screw hole corresponding to the first through hole, and the bolt is used for being connected with the screw hole. The bolt is arranged at one end, far away from the force application end, of the hydraulic device, the bolt is screwed with the screw hole in the bearing piece and then fixed by the nut, and then the hydraulic device can be fixed on the bearing piece.
In one embodiment, the chain pin removal tool further comprises a spacer for resting on the force application end. When the force application end of the hydraulic device extends to the maximum length, but the pin shaft is not detached yet, the hydraulic device can be firstly decompressed, then the gasket is arranged between the force application end and the pin shaft, and the hydraulic device is continuously started until the pin shaft is detached.
Above-mentioned chain round pin axle extracting tool has following beneficial effect at least:
the chain round pin axle extracting tool that this embodiment provided includes supporting piece, flange spare and hydraulic means. When the chain pin shaft dismounting tool is used, a flange part is firstly used for sleeving a chain structure to be dismounted, namely the chain structure is plugged between the flange part and a force application end of a hydraulic device, then a pin shaft is aligned to a first through hole of the flange part, the force application end of the hydraulic device is aligned to the pin shaft and the hydraulic device is started, and the force application end abuts against the pin shaft to move towards the direction of the first through hole. However, the link plate and other structures are blocked by the flange member toward the bearing member and cannot move, and finally the pin shaft falls off from the chain structure. When the force application end of the hydraulic device extends to the maximum length, but the pin shaft is not detached yet, the hydraulic device can be decompressed firstly, then the distance from the flange piece to the supporting piece is changed by the adjusting rod, so that the distance from the hydraulic device to the flange piece can be reduced, and then the hydraulic device is continuously started until the pin shaft is detached. The chain pin shaft dismounting tool is simple in operation steps, beneficial to improving the maintenance efficiency of a chain structure, uniform in force application to the pin shaft, stable and convenient in dismounting process, and beneficial to reducing damage to the pin shaft and the chain plate. In addition, the chain pin shaft dismounting tool is simple in structure, low in machining precision and low in manufacturing cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a chain pin dismounting tool according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the chain pin removal tool of FIG. 1.
Description of reference numerals: 100. a chain pin shaft dismounting tool; 110. a support member; 120. a flange member; 121. a first through hole; 130. adjusting a rod; 131. a first end; 132. a second end; 133. a threaded portion; 140. a hydraulic device; 141. and a force application end.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The present embodiment provides a chain pin dismounting tool 100, which has the advantages of improving the dismounting efficiency of the pin shaft and the chain plate, further improving the maintenance efficiency of the chain structure, and reducing the damage to the chain structure, and will be described in detail with reference to the attached drawings.
In one embodiment, referring to fig. 1 and 2, a chain pin dismounting tool 100 includes a support member 110, a flange member 120, an adjustment lever 130, and a hydraulic device 140. The supporting member 110 and the flange member 120 are disposed at an interval, the flange member 120 is provided with a first through hole 121, and the first through hole 121 is used for penetrating a pin shaft (not shown). One end of the adjusting rod 130 is connected to the supporting member 110, the other end of the adjusting rod 130 is connected to the flange member 120, and the adjusting rod 130 is used for adjusting the distance from the flange member 120 to the supporting member 110. The hydraulic device 140 is disposed on the supporting member 110, the hydraulic device 140 includes a force applying end 141, the force applying end 141 is disposed toward the first through hole 121, and the force applying end 141 is configured to eject the pin out of the first through hole 121. Wherein the hydraulic device 140 may be a jack. The support member 110 is a metal plate structure, and the flange member 120 is a box structure formed by welding a plurality of metal plates together. It is understood that the support member 110 and the flange member 120 may have other shapes, such as a disk shape, a cube shape, etc., and are not limited thereto.
Specifically, referring to fig. 1 to 2, the chain pin dismounting tool provided in this embodiment includes a supporting member 110, a flange member 120, and a hydraulic device 140. When the chain pin shaft dismounting tool 100 is used, the flange piece 120 is firstly used for sheathing the chain structure to be dismounted, namely, the chain structure is plugged between the flange piece 120 and the force application end 141 of the hydraulic device 140, then, the pin shaft is aligned with the first through hole 121 of the flange piece 120, then, the force application end 141 of the hydraulic device 140 is aligned with the pin shaft and the hydraulic device 140 is started, and the force application end 141 props against the pin shaft to move towards the direction of the first through hole 121. However, the link plate is blocked by the flange 120 toward the support member 110 and cannot move, and the pin is finally released from the chain structure. When the force application end 141 of the hydraulic device 140 has been extended to the maximum length, but the pin is not detached yet, the hydraulic device 140 may be first decompressed, and then the distance from the flange member 120 to the support member 110 is changed by the adjustment lever 130, so that the distance from the hydraulic device 140 to the flange member 120 may be reduced, and then the hydraulic device 140 may be continuously started until the pin is detached. This chain round pin axle extracting tool 100's operating procedure is simple, is favorable to improving the maintenance efficiency of chain structure, and the application of force to the round pin axle is comparatively even, and the dismantlement process is steady convenient, is favorable to reducing the damage to round pin axle and link joint. In addition, the chain pin shaft dismounting tool 100 is simple in structure, low in machining precision and low in manufacturing cost.
As an alternative embodiment, referring to fig. 1 and 2, the adjusting rod 130 may be a telescopic rod, one end of the telescopic rod is mounted on the supporting member 110, and the other end of the telescopic rod is mounted on the flange member 120. When the force application end 141 of the hydraulic device 140 has been extended to the maximum length, but the pin shaft has not been removed, the hydraulic device 140 may be decompressed first, and then the length of the telescopic rod is shortened to reduce the distance from the flange member 120 to the support member 110, so that the distance from the hydraulic device 140 to the flange member 120 may be reduced, and then the hydraulic device 140 may be continuously started until the pin shaft is removed. Wherein, the telescopic link can be in the same place for two sections metal pole butt joints, is equipped with a plurality of screens on one of them metal pole, and a plurality of screens are arranged along the length direction interval of metal pole, is equipped with the draw-in groove corresponding with the screens on another metal pole, and the connection of two sections metal pole can be realized to the screens card income draw-in groove. When the length of the telescopic rod needs to be adjusted, the clamping positions with different heights are clamped in the clamping grooves.
As another alternative, referring to fig. 1 and 2, the adjustment rod 130 includes a first end 131 and a second end 132 that are oppositely disposed, the first end 131 is provided with a threaded portion 133, the first end 131 is screwed to the flange member 120, and/or the second end 132 is provided with the threaded portion 133, and the second end 132 is screwed to the support member 110. Specifically, when only the first end 131 is provided with the threaded portion 133, the first end 131 is threadedly coupled to the flange member 120, and the second end 132 is fixed to the support member 110, the distance between the flange member 120 and the support member 110 can be changed by changing the length of the first end 131 screwed into the flange member 120. When only the second end 132 is provided with the threaded portion 133, the second end 132 is threadedly coupled to the support member 110, and the first end 131 is fixed to the flange member 120, the distance between the flange member 120 and the support member 110 can be changed by changing the length of the second end 132 that is threaded into the support member 110. When the first end 131 is provided with a threaded portion 133, the second end 132 is provided with a threaded portion 133, the first end 131 is threadedly coupled to the flange member 120, and the second end 132 is threadedly coupled to the support member 110, the distance between the flange member 120 and the support member 110 can be varied by varying the length of the second end 132 that is threadedly coupled to the support member 110, and varying the length of the first end 131 that is threadedly coupled to the flange member 120.
In one embodiment, referring to fig. 1 to 2, the flange member 120 and the supporting member 110 are disposed in parallel, and the adjusting rod 130 is perpendicular to the flange member 120 and the supporting member 110, respectively. At least two adjusting rods 130 are provided, and the adjusting rods 130 are symmetrically arranged on both sides of the hydraulic device 140. Thus, after the hydraulic device 140 is started, the force application end 141 applies force to the pin shaft uniformly, the dismounting process is stable and convenient, and the damage to the pin shaft and the chain plate is reduced.
In one embodiment, referring to fig. 1 to 2, the flange 120 is provided with a plurality of first through holes 121, and the first through holes 121 have different apertures. Specifically, the first through holes 121 with different apertures can be matched with pins with different diameters, so that the flange member 120 can be suitable for more types of pins, and the chain pin dismounting tool 100 can be used for dismounting chains with various models, thereby improving the universality of the chain pin dismounting tool 100.
In one embodiment, referring to fig. 1 to 2, the hydraulic device 140 includes a first connector (not shown), and the hydraulic device 140 is movably disposed on the supporting member 110 through the first connector, so that the hydraulic device 140 can be moved to a position aligned with the first through hole 121.
As an alternative embodiment, referring to fig. 1 to 2, the first connecting element is a sliding strip (not shown), the sliding strip is disposed at an end of the hydraulic device 140 away from the force application end 141, a sliding slot (not shown) is disposed on the supporting element 110, and the sliding strip is slidably disposed in the sliding slot. Specifically, a slide bar is fixedly disposed at an end portion of the hydraulic device 140 away from the force application end 141, and a slide groove is disposed in the support member 110 corresponding to the slide bar. The sliding groove is disposed corresponding to the first through hole 121 of the flange member 120, and the force application end 141 of the hydraulic device 140 can be aligned with any one of the first through holes 121 when the hydraulic device 140 slides on the sliding groove. It is understood that the slide bar may also be disposed on the supporting member 110, and the end of the hydraulic device 140 is provided with a sliding slot, so as to adjust the position of the hydraulic device 140, thereby ensuring that the force application end 141 of the hydraulic device 140 can be aligned with any one of the first through holes 121.
As another alternative, referring to fig. 1 to 2, the first connecting element is a bolt fixed to an end of the hydraulic device 140 away from the force application end 141. The supporting member 110 is provided with a screw hole corresponding to the first through hole 121, and the bolt is used for connecting with the screw hole. Specifically, the end of the hydraulic device 140 away from the force application end 141 is provided with a bolt, which is screwed with a screw hole on the support member 110, and then is fixed by a nut, so that the hydraulic device 140 can be fixed. When the position of the hydraulic device 140 needs to be changed to align the hydraulic device 140 with other first through holes 121, the nut only needs to be screwed off, the hydraulic device 140 is moved into other screw holes, and the action of fixing the bolt by the nut is repeated, so that the position of the hydraulic device 140 can be changed.
In one embodiment, referring to fig. 1-2, the chain pin removal tool 100 further comprises a spacer for resting on the force application end 141. When the force application end 141 of the hydraulic device 140 has been extended to the maximum length, but the pin is not detached yet, the hydraulic device 140 may be first depressurized, and then a gasket is placed between the force application end 141 and the pin, and the hydraulic device 140 may be continuously started until the pin is detached. The operation steps of disassembling the pin shaft by the chain pin shaft disassembling tool 100 are simple, the force application to the pin shaft is uniform, the disassembling process is stable and convenient, and the damage to the pin shaft is reduced. In addition, the chain pin shaft dismounting tool 100 is simple in structure, low in machining precision and low in manufacturing cost.
The chain pin removal tool 100 of the present embodiment includes a support member 110, a flange member 120, and a hydraulic device 140. When the chain pin shaft dismounting tool 100 is used, the flange piece 120 is firstly used for sheathing the chain structure to be dismounted, namely, the chain structure is plugged between the flange piece 120 and the force application end 141 of the hydraulic device 140, then, the pin shaft is aligned with the first through hole 121 of the flange piece 120, then, the force application end 141 of the hydraulic device 140 is aligned with the pin shaft and the hydraulic device 140 is started, and the force application end 141 props against the pin shaft to move towards the direction of the first through hole 121. However, the link plate is blocked by the flange 120 toward the support member 110 and cannot move, and the pin is finally released from the chain structure. When the force application end 141 of the hydraulic device 140 has been extended to the maximum length, but the pin is not detached yet, the hydraulic device 140 may be first decompressed, and then the distance from the flange member 120 to the support member 110 is changed by the adjustment lever 130, so that the distance from the hydraulic device 140 to the flange member 120 may be reduced, and then the hydraulic device 140 may be continuously started until the pin is detached. This chain round pin axle extracting tool 100's operating procedure is simple, is favorable to improving the maintenance efficiency of chain structure, and the application of force to the round pin axle is comparatively even, and the dismantlement process is steady convenient, is favorable to reducing the damage to round pin axle and link joint. In addition, the chain pin shaft dismounting tool 100 is simple in structure, low in machining precision and low in manufacturing cost.
In addition, the flange member 120 is provided with first through holes 121 with different sizes, and the hydraulic device 140 is movably arranged on the supporting member 110. Thus, the flange member 120 can be suitable for pins of more types, and the chain pin dismounting tool 100 can dismount chain structures of various types, so that the universality of the chain pin dismounting tool 100 is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a chain round pin axle extracting tool which characterized in that includes:
the bearing piece and the flange piece are arranged at intervals, the flange piece is provided with a first through hole, and the first through hole is used for penetrating through a pin shaft;
one end of the adjusting rod is connected to the supporting piece, the other end of the adjusting rod is connected to the flange piece, and the adjusting rod is used for adjusting the distance from the flange piece to the supporting piece; and
the hydraulic device is arranged on the supporting piece and comprises a force application end, the force application end faces the first through hole, and the force application end is used for ejecting the pin shaft out of the first through hole.
2. The chain pin removal tool of claim 1, wherein the adjustment rod is a telescoping rod, one end of the telescoping rod is mounted to the support member, and the other end of the telescoping rod is mounted to the flange member.
3. The chain pin removal tool of claim 1, wherein the adjustment bar includes first and second opposing ends, the first end having a threaded portion, the first end being threadably coupled to the flange member, and/or the second end having the threaded portion, the second end being threadably coupled to the support member.
4. The chain pin dismounting tool according to claim 1, wherein there are at least two said adjusting levers symmetrically disposed on both sides of said hydraulic device.
5. The chain pin removal tool of claim 1, wherein the flange member and the support member are arranged in parallel, and the adjustment bar is perpendicular to the flange member and the support member, respectively.
6. The chain pin dismounting tool according to claim 1, wherein said flange member is provided with a plurality of said first through holes, and the diameters of said first through holes are not equal.
7. The chain pin removal tool of claim 6, wherein the hydraulic device includes a first connector by which the hydraulic device is movably disposed on the support member for enabling the hydraulic device to move to a position aligned with the first through hole.
8. The chain pin dismounting tool of claim 7, wherein said first connector is a slide bar, said slide bar is disposed at an end of said hydraulic device distal from said force application end, said support member is provided with a slide groove, and said slide bar is slidably disposed in said slide groove.
9. The chain pin removal tool of claim 7, wherein the first attachment member is a bolt secured to an end of the hydraulic device distal from the force application end; the supporting piece is provided with a screw hole corresponding to the first through hole, and the bolt is used for being connected with the screw hole.
10. The chain pin removal tool of any one of claims 1-9, further comprising a spacer for resting on the force application end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020601929.0U CN211992757U (en) | 2020-04-21 | 2020-04-21 | Chain pin shaft dismounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020601929.0U CN211992757U (en) | 2020-04-21 | 2020-04-21 | Chain pin shaft dismounting tool |
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| CN211992757U true CN211992757U (en) | 2020-11-24 |
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| CN202020601929.0U Active CN211992757U (en) | 2020-04-21 | 2020-04-21 | Chain pin shaft dismounting tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114800371A (en) * | 2021-01-18 | 2022-07-29 | 北京福田康明斯发动机有限公司 | Ejection tool |
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2020
- 2020-04-21 CN CN202020601929.0U patent/CN211992757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114800371A (en) * | 2021-01-18 | 2022-07-29 | 北京福田康明斯发动机有限公司 | Ejection tool |
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Address after: No. 1075, Lingang East Road, gaolangang Economic Zone, Zhuhai, Guangdong 519050 Patentee after: Guoneng Zhuhai Port Co.,Ltd. Address before: 1075 Lingang East Road, Gaolan Port Economic Zone, Zhuhai City, Guangdong Province Patentee before: SHENHUA YUEDIAN ZHUHAI PORT COAL TERMINAL Co.,Ltd. |