CN216272745U - Special balance adjusting device for assembling marine crankshaft sleeve - Google Patents
Special balance adjusting device for assembling marine crankshaft sleeve Download PDFInfo
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- CN216272745U CN216272745U CN202122899559.0U CN202122899559U CN216272745U CN 216272745 U CN216272745 U CN 216272745U CN 202122899559 U CN202122899559 U CN 202122899559U CN 216272745 U CN216272745 U CN 216272745U
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- rod
- adjusting
- adjusting rod
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Abstract
The utility model provides a special balance adjusting device for assembling a marine crankshaft sleeve, which comprises an adjusting rod extending left and right, wherein the left end of the adjusting rod penetrates through a counterweight main body and is movably connected with the counterweight main body, and the right end of the adjusting rod is provided with a counterweight hoisting rod; a plurality of force arm adjusting holes for installing a hanging rod are formed in the right side of the adjusting rod, and a clamping gap for clamping a crank and shaft assembly is formed between the hanging rod and the adjusting rod; the left end of the adjusting rod is provided with a driving mechanism for driving the counterweight main body to move along the extension direction of the adjusting rod; the lateral wall processing of counter weight main part has the mounting groove that is used for connecting the balancing weight, rings are installed at the top of counter weight main part. The utility model fully utilizes the lever principle to eliminate the unstable factors of the crank and shaft combination body in the adjusting process before assembly, and simultaneously utilizes the screw rod and nut transmission principle to realize quick fine adjustment, accurately adjust the counterweight position, offset the eccentric moment after the combination body is lifted, and ensure the requirement of the axis perpendicularity.
Description
Technical Field
The utility model relates to the technical field of marine semi-combined crankshaft assembly, in particular to a special balance adjusting device for marine crankshaft red sleeve assembly.
Background
The marine semi-combined crankshaft components are assembled by utilizing the interference fit of the size of the shaft hole and adopting a shrink fit mode. Assembling, namely, performing separate packaging and self-packaging: the single-assembling is the assembling between the revolving shaft part and the crank, and the assembling can be completed only by hoisting the shaft part and ensuring the axis of the shaft part to coincide with the central line of the crank hot-assembling hole, thereby forming a crank and shaft combination. The self-assembly is an assembly process of sequentially assembling the assembled assemblies which are singly assembled and assembling the shaft of one assembly into the crank hot-assembling hole of the other assembly.
The assembly of the marine semi-combined crankshaft after being singly assembled is in a heavy state relative to the axis, the weight range is 9t-55t, the assembly depth is 220-. Under this prerequisite, need adjust the assembly axis of crane suspension state to within 0.05mm/m perpendicular to the horizontal plane, this process is very difficult to operate, will waste a large amount of time adjustment. Once adjust unqualifiedly or take place the drunkenness in the handling process, lead to the axis of assembly to be the tilt state, in the assembly process, axle slope side reason can block in the crank hole, can't descend to the assembly position, causes the assembly failure. Therefore, a balance adjusting device special for assembling the marine crankshaft sleeve needs to be designed.
SUMMERY OF THE UTILITY MODEL
According to the technical problem, the special balance adjusting device for assembling the marine crankshaft sleeve is provided.
The technical means adopted by the utility model are as follows:
a special balance adjusting device for assembling a marine crankshaft sleeve comprises an adjusting rod extending left and right, wherein a through hole matched with the adjusting rod is formed in the middle of a balance weight main body, the extending direction of the through hole is parallel to the extending direction of the adjusting rod, the left end of the adjusting rod penetrates through the through hole and is movably connected with the balance weight main body, a balance weight lifting rod is mounted at the right end of the adjusting rod, and the balance weight lifting rod extends forwards and backwards;
a plurality of force arm adjusting holes extending up and down are formed in the right side of the adjusting rod and used for installing a hanging rod, and a clamping gap for clamping a crank and shaft assembly is formed between the hanging rod and the adjusting rod;
the left end of the adjusting rod is provided with a driving mechanism for driving the counterweight main body to move along the extension direction of the adjusting rod;
the lateral wall processing of counter weight main part has the mounting groove that is used for connecting the balancing weight, rings are installed at the top of counter weight main part.
Further, the driving mechanism comprises a lead screw, a groove is formed in the lower surface of the left end of the adjusting rod, the lead screw of the lead screw is located in the groove, a lead screw nut fixing groove is formed in the bottom of the through hole, and a lead screw nut of the lead screw is fixedly connected with the lead screw nut fixing groove; the left end of the lead screw is connected with a lead screw driving mechanism which drives the lead screw of the lead screw to rotate.
Further, the screw rod driving mechanism is a hand wheel connected with a screw rod of the screw rod.
Furthermore, pulley block mounting grooves are respectively processed at two ends of the top of the through hole, a pulley block is mounted in each pulley block mounting groove, and the pulley block is in rolling connection with the upper surface of the adjusting rod.
Furthermore, the mounting grooves are respectively machined on two sides of the bottom of the peripheral side wall of the counterweight main body and are T-shaped, the horizontal section of each mounting groove is used for mounting the head end of a counterweight screw rod, and the vertical section of each mounting groove is used for mounting the rod part of the counterweight screw rod;
the lateral wall all around of balancing weight is processed have with mounting groove matched with cross groove, just the horizontal segment in cross groove be used for the installation with counter weight screw rod matched with nut, the vertical section in cross groove is used for installing the pole portion of counter weight screw rod.
Furthermore, the suspender is extended in the front-back direction, a threaded hole is processed in the middle of the suspender, the rod part of the vertically arranged suspender screw rod penetrates through the force arm adjusting hole and then penetrates into the threaded hole, the suspender screw rod is in threaded connection with the threaded hole, and the head part of the suspender screw rod is in contact connection with the adjusting rod.
Furthermore, a gasket is arranged between the head of the suspender screw rod and the adjusting rod.
Compared with the prior art, the utility model has the following advantages:
1. the utility model fully utilizes the lever principle to eliminate the unstable factors of the crank and shaft combination body in the adjusting process before assembly, and simultaneously utilizes the screw rod and nut transmission principle to realize quick fine adjustment, accurately adjust the counterweight position, offset the eccentric moment after the combination body is lifted, and ensure the requirement of the axis perpendicularity.
2. Rational in infrastructure, the suitability is strong, only makes one set of frock can satisfy the assembly adjustment demand of all models bent axles, avoids investing a large amount of manufacturing cost.
3. The method has strong operability, can quickly and stably and accurately complete the adjustment operation before the integral assembly of the crankshaft shrink fit, effectively reduces the difficulty of the adjustment operation, and ensures the assembly quality of the crankshaft.
Based on the reasons, the utility model can be widely popularized in the fields of assembling ship semi-combined crankshafts and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a special balance adjusting device for assembling a marine crankshaft sleeve in an embodiment of the utility model.
FIG. 2 is a front view of a weight body according to an embodiment of the present invention.
FIG. 3 is a side view of a weight body according to an embodiment of the present invention.
FIG. 4 is a front view of an adjustment rod in accordance with an embodiment of the present invention.
FIG. 5 is a top view of an adjustment rod in accordance with an embodiment of the present invention.
FIG. 6 is a top view of a hanger bar according to an embodiment of the present invention.
FIG. 7 is a side view of a hanger bar according to an embodiment of the present invention.
FIG. 8 is a front view of a weight in accordance with an embodiment of the present invention.
FIG. 9 is a top view of a weight member according to an embodiment of the present invention.
Fig. 10 is a front view of a special balance adjustment device for assembling a marine crankshaft sleeve in a use state according to an embodiment of the present invention.
Fig. 11 is a lower side view of a structure of a special balance adjustment device for assembling a marine crankshaft sleeve in a using state according to an embodiment of the present invention.
In the figure: 1. a counterweight main body; 101. a through hole; 102. a lead screw nut fixing groove; 103. a pulley block mounting groove; 104. a pulley block; 105. mounting grooves; 2. an adjusting lever; 201. a moment arm adjusting hole; 202. a groove; 3. a lead screw with a hand wheel; 4. a balancing weight; 401. a cross-shaped groove; 5. a hoisting ring; 6. a boom; 601. a threaded hole; 7. a boom screw; 8. a gasket; 9. a counterweight hoisting rod; 10. a nut; 11. a counterweight screw rod; 12. a crank and shaft assembly; 13. a level gauge.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 to 11, the special balance adjusting device for assembling the marine crankshaft red sleeve comprises an adjusting rod 2 extending left and right, wherein a through hole 101 matched with the adjusting rod 2 is formed in the middle of a counterweight main body 1, the extending direction of the through hole 101 is parallel to the extending direction of the adjusting rod 2, the left end of the adjusting rod 2 penetrates through the through hole 101 and is movably connected with the counterweight main body 1, a counterweight lifting rod 9 is installed at the right end of the adjusting rod 2, and the counterweight lifting rod 9 extends back and forth;
a plurality of force arm adjusting holes 201 extending up and down are formed in the right side of the adjusting rod 2 (in this embodiment, the force arm adjusting holes 201 are arranged at equal intervals), the force arm adjusting holes 201 are used for installing a suspender 6, and a clamping gap for clamping a crank and a shaft assembly 12 is formed between the suspender 6 and the adjusting rod 2; the suspender 6 extends in the front-back direction, a threaded hole 601 is formed in the middle of the suspender 6, the rod part of the suspender screw 7 which is vertically arranged penetrates through the force arm adjusting hole 201 and then penetrates into the threaded hole 601, the threaded hole 601 is in threaded connection, and a gasket 8 is arranged between the head part of the suspender screw 7 and the adjusting rod 2.
A lead screw 3 with a hand wheel for driving the counterweight main body to move along the extension direction of the adjusting rod is arranged at the left end of the adjusting rod 2; a groove 202 is formed in the lower surface of the left end of the adjusting rod 2, a lead screw with a hand wheel lead screw 3 is arranged in the groove 202, a lead screw nut fixing groove 102 is formed in the bottom of the through hole 101, and the lead screw nut with the hand wheel lead screw 3 is fixedly connected with the lead screw nut fixing groove 102; and the hand wheel of the screw rod 3 with the hand wheel for driving the screw rod to rotate is positioned at the left of the adjusting rod 2. Pulley block mounting grooves 103 are respectively processed at two ends of the top of the through hole 101, a pulley block 104 is mounted in the pulley block mounting groove 103, and the pulley block 104 is in rolling connection with the upper surface of the adjusting rod 2.
Mounting grooves 105 for connecting balancing weights 4 are respectively machined in two sides of the bottom of the peripheral side wall of the counterweight main body 1, the mounting grooves 105 are T-shaped, the horizontal section of each mounting groove 105 is used for mounting the head end of a counterweight screw rod 11, and the vertical section of each mounting groove 105 is used for mounting the rod part of the counterweight screw rod 11;
the lateral wall all around of balancing weight 4 is processed have with mounting groove 105 matched with cross groove 401, just the horizontal segment in cross groove 401 be used for the installation with counter weight screw 11 matched with nut 10, the vertical section in cross groove 401 is used for the installation the pole portion of counter weight screw 11. The balancing weight 4 is limited and fixed at the bottom of the balancing weight main body 1 through eight balancing weight screw rods 11. And a lifting ring 5 is installed at the top of the counterweight main body 1.
Taking the adjustment working condition of the single-assembly of the 6S70ME-C crankshaft as an example, the crank throw and the shaft assembly 12 need to be adjusted to be in a balanced state before the whole assembly of the crankshaft red sleeve, and the adjustment mode is as follows:
the singulated bell crank and shaft assembly 12 is transferred to a station with the assembled shaft side down and the unassembled side up. The suspension rod 6 is arranged at the center of a stop hole in the crank of the crank and shaft combination body 12 and is vertical to the stroke direction of the crank. The specification and the number of the balancing weights 4 are selected according to the eccentric condition of the crank and shaft combination body 12, and are fixedly installed with the counterweight main body 1, and meanwhile, the force arm adjusting holes used on the adjusting rods 2 are determined. The lifting lug 5 and the balance weight lifting rod 9 are hung and transferred to the upper part of the crank and shaft assembly 12 by a crane, a force arm adjusting hole 201 determined on the adjusting rod 2 is aligned with a threaded hole 601 of the lifting rod 6 (the aim is to complete assembly, and after the crane is loosened, the crank and shaft assembly 12 and the balance adjusting device bear a stable state in a natural state), and the adjusting rod 2, the lifting rod 6 and the crank and shaft assembly 12 are fixed by using a lifting rod screw 7 and a gasket 8. Two ends of a suspender 6 are hung by a crane, a level meter 13 is arranged on the upper surface of a shaft 12 of a crank and shaft assembly, and a counterweight main body 1 is driven to move left and right on an adjusting rod 2 by rotating a lead screw 3 with a hand wheel to complete micro-adjustment. The axis of the crank throw and shaft combination 12 is ensured to be within 0.05mm/m relative to the horizontal plane. And finishing the adjustment operation and entering a state to be assembled.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The special balance adjusting device for assembling the marine crankshaft sleeve is characterized by comprising an adjusting rod extending leftwards and rightwards, wherein a through hole matched with the adjusting rod is formed in the middle of a balance weight main body, the extending direction of the through hole is parallel to the extending direction of the adjusting rod, the left end of the adjusting rod penetrates through the through hole and is movably connected with the balance weight main body, a balance weight lifting rod is installed at the right end of the adjusting rod, and the balance weight lifting rod extends forwards and backwards;
a plurality of force arm adjusting holes extending up and down are formed in the right side of the adjusting rod and used for installing a hanging rod, and a clamping gap for clamping a crank and shaft assembly is formed between the hanging rod and the adjusting rod;
the left end of the adjusting rod is provided with a driving mechanism for driving the counterweight main body to move along the extension direction of the adjusting rod;
the lateral wall processing of counter weight main part has the mounting groove that is used for connecting the balancing weight, rings are installed at the top of counter weight main part.
2. The balance adjusting device special for assembling the marine crankshaft red sleeve is characterized in that the driving mechanism comprises a lead screw, a groove is formed in the lower surface of the left end of the adjusting rod, the lead screw of the lead screw is positioned in the groove, a lead screw nut fixing groove is formed in the bottom of the through hole, and the lead screw nut of the lead screw is fixedly connected with the lead screw nut fixing groove; the left end of the lead screw is connected with a lead screw driving mechanism which drives the lead screw of the lead screw to rotate.
3. The balance adjustment device special for assembling the marine crankshaft red sleeve as claimed in claim 2, wherein the screw rod driving mechanism is a hand wheel connected with a screw rod of the screw rod.
4. The balance adjusting device special for assembling the marine crankshaft sleeve is characterized in that pulley block mounting grooves are respectively formed in two ends of the top of the through hole, a pulley block is mounted in each pulley block mounting groove, and the pulley blocks are in rolling connection with the upper surfaces of the adjusting rods.
5. The special balance adjusting device for assembling the marine crankshaft red sleeve according to claim 1, wherein the mounting grooves are respectively machined on two sides of the bottom of the peripheral side wall of the counterweight main body and are T-shaped, the horizontal section of each mounting groove is used for mounting the head end of a counterweight screw rod, and the vertical section of each mounting groove is used for mounting the rod part of the counterweight screw rod;
the lateral wall all around of balancing weight is processed have with mounting groove matched with cross groove, just the horizontal segment in cross groove be used for the installation with counter weight screw rod matched with nut, the vertical section in cross groove is used for installing the pole portion of counter weight screw rod.
6. The special balance adjustment device for assembling the marine crankshaft red sleeve as claimed in claim 1, wherein the hanger rod extends in a front-rear direction, a threaded hole is formed in the middle of the hanger rod, a rod part of a vertically arranged hanger rod screw penetrates through the arm force adjustment hole and then penetrates into the threaded hole to be in threaded connection with the threaded hole, and a head part of the hanger rod screw is in contact connection with the adjustment rod.
7. The special balance adjusting device for assembling the marine crankshaft red sleeve as claimed in claim 6, wherein a washer is arranged between the head of the suspender screw and the adjusting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899559.0U CN216272745U (en) | 2021-11-24 | 2021-11-24 | Special balance adjusting device for assembling marine crankshaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122899559.0U CN216272745U (en) | 2021-11-24 | 2021-11-24 | Special balance adjusting device for assembling marine crankshaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216272745U true CN216272745U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122899559.0U Withdrawn - After Issue CN216272745U (en) | 2021-11-24 | 2021-11-24 | Special balance adjusting device for assembling marine crankshaft sleeve |
Country Status (1)
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| CN (1) | CN216272745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979308A (en) * | 2021-11-24 | 2022-01-28 | 大连华锐船用曲轴有限公司 | Special balance adjusting device for assembling marine crankshaft sleeve |
-
2021
- 2021-11-24 CN CN202122899559.0U patent/CN216272745U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979308A (en) * | 2021-11-24 | 2022-01-28 | 大连华锐船用曲轴有限公司 | Special balance adjusting device for assembling marine crankshaft sleeve |
| CN113979308B (en) * | 2021-11-24 | 2023-07-25 | 大连华锐船用曲轴有限公司 | Special balance adjustment device for marine crankshaft red sleeve assembly |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220412 Effective date of abandoning: 20230725 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20220412 Effective date of abandoning: 20230725 |