Box body structure for speed reducer of ship lift

Abstract

The utility model relates to the technical field of gear boxes, in particular to a box body structure for a speed reducer of a ship lift. The box comprises a box body, the box body comprises an upper box body and a lower box body which are detachably connected, the upper box body is provided with a mounting hole, and the mounting hole is used for mounting a first shunt shaft. A first flow dividing bearing seat is arranged in the box body and used for installing a first flow dividing shaft. The first shunting bearing seat comprises a first base and a first bearing cover, the first bearing cover is detachably connected with the first base, and the first base is fixedly connected with the upper box body. Due to the fact that the first base of the first shunting bearing seat is fixedly connected with the upper box body, and the first shunting bearing seat is located on the inner side of the upper box body, the upper box body can resist the axial force borne by the first shunting bearing seat, and therefore the influence of the axial force on the first shunting bearing seat is reduced. And the stability of the first shunting bearing seat is improved, so that the service life of the gear box is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a box structure for a ship lift reducer. Background Art

[0002] A ship lift is a mechanical device used to raise or lower ships to help them overcome the concentrated water level difference on the waterway and ensure that ships can pass through the dam smoothly. At present, the development trend of domestic ship lifts is to develop towards lifting weights of 1,000 tons and launching types, among which launching ship lifts can speed up the speed of passing through the dam and achieve the goal of fast passing through the dam. However, when the transmission torque of the launching ship lift system reaching 1,000 tons exceeds 10,000 kN.m, the transmission gears and diverter shafts need to bear greater loads, which puts higher requirements on the design and production of the reducer.

[0003] In order to solve the gear transmission problem of the reducer for ship lifts of 1,000 tons or more, a Chinese patent provides a gear transmission structure for a reducer for a ship lift (publication number CN105041982A), including a housing, in which various components related to the reducer are installed, and the housing is divided into an upper housing and a lower housing. The patented technology adopts a gear power diversion structure. During the transmission process, the reduction shaft is transmitted through the diversion shaft, and the power is transmitted to the output shaft through two diversion shafts, and the two diversion shafts are distributed vertically. The power is diverted by two diversion shafts, which effectively reduces the load of a single diversion shaft and a diversion gear, thereby meeting the transmission requirements.

[0004] However, this type of equipment also has some problems during use. First, the bearing seat used to install the diverter shaft located on the upper side is connected to the lower housing by bolts. Since the diverter shaft has a large axial force during the gear transmission process, this requires the bearing seat to bear a large axial force, which can easily lead to large deformation of the bearing seat, causing gear eccentric load damage, and thus reducing the service life of the gearbox. Secondly, in the existing gear transmission structure of the reducer for ship lifts, the reducer output shaft, coupling and drum shaft are all installed inside the housing. When installing the drum shaft and the output shaft coupling, the reducer needs to be unpacked and installed. After unpacking, the reduction transmission parts inside the reducer are exposed to the air. During the on-site installation of the drum shaft and the output shaft coupling, due to the high humidity at the site where the reducer is used, especially the long debugging time, long-term exposure can easily cause the internal parts of the reducer to rust, thereby affecting the life of the internal parts. Utility Model Content

[0005] In view of the above-mentioned defects, the technical problem to be solved by the utility model is to provide a housing structure for a ship lift reducer, wherein the reducer housing can improve the resistance of the bearing seat to the axial force, thereby increasing the service life of the gear box.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A box structure for a ship lift reducer includes a box body, the box body includes an upper box body and a lower box body that are detachably connected, the upper box body is provided with a mounting hole, the mounting hole is used to install a first diverter shaft, the upper box body is provided with a first diverter bearing seat, the first diverter bearing seat is used to install the first diverter shaft, the first diverter bearing seat includes a first base and a first bearing cover, the first bearing cover is detachably connected to the first base, and the first base is fixedly connected to the upper box body.

[0008] By adopting the above solution, since the first base of the first shunt bearing seat is fixedly connected to the upper housing, and the first shunt bearing seat is located on the inner side of the upper housing, the upper housing can resist the axial force exerted on the first shunt bearing seat, thereby reducing the influence of the axial force on the first shunt bearing seat. The first shunt bearing seat is prevented from being separated from the upper housing, the stability of the first shunt bearing seat is improved, and thus the service life of the gearbox is improved.

[0009] The utility model is further configured that the first base is welded to the upper box body. The first base and the upper box body are welded together, which makes the connection between the first base and the upper box body more firm and stable.

[0010] The utility model is further configured such that a mounting opening is provided at the top of the upper box body, and a sealing cover is detachably connected to the upper box body, and the sealing cover seals the mounting opening. By opening the sealing cover, it is convenient to install the reducer components into the interior of the upper box body, or to perform maintenance work on the interior, without disassembling the connection between the upper box body and the lower box body.

[0011] The utility model is further configured that a plurality of support plates are provided inside the upper box body, and the sealing cover is connected to the support plates by first bolts. Connecting the sealing cover by the support plates can avoid opening threaded holes on the upper box body, and can facilitate the connection of the sealing cover.

[0012] The utility model is further configured that at least one observation window is provided on the sealing cover, through which the meshing condition of the gears in the box body can be conveniently observed.

[0013] The utility model is further configured such that the housing body is provided with an output bearing hole and a plurality of reduction bearing holes, the lower housing is provided with a diverter bearing hole, all the reduction bearing holes are arranged side by side, the plane formed by the axes of all the reduction bearing holes is perpendicular to the plane formed by the axes of the mounting holes and the diverter bearing holes, and the mounting holes and the diverter bearing holes are both located between the output bearing hole and the reduction bearing hole. The bearing of the reduction shaft of the reducer is installed through the reduction bearing hole, the bearing of the first diverter shaft is installed through the first diverter bearing seat corresponding to the mounting hole, the bearing of the second diverter shaft is installed through the diverter bearing hole, the two diverter shafts are both driven with the same adjacent reduction shaft, and the output shaft is installed through the output bearing hole. Since the plane formed by the first diverter bearing seat corresponding to the mounting hole and the diverter bearing hole is perpendicular to the plane formed by all the reduction bearing holes, and the two diverter shafts are located between the output bearing hole and the reduction bearing hole, the spatial position between the two diverter shafts and each shaft is more reasonable, which is conducive to improving the stability of the transmission.

[0014] The utility model is further configured such that the upper housing is provided with an upper output bearing hole of a half-hole structure and a plurality of upper reduction bearing holes, the lower housing is provided with a lower output bearing hole of a half-hole structure corresponding to the upper output bearing hole, and a plurality of lower reduction bearing holes of a half-hole structure corresponding one to one to the upper reduction bearing hole, the upper output bearing hole and the lower output bearing hole together form the output bearing hole, and the upper reduction bearing hole and the corresponding lower reduction bearing hole together form the reduction bearing hole. The output bearing hole and the reduction bearing hole are formed by combining the bearing holes of the half-hole structure respectively located on the upper housing and the lower housing, which makes it easier to install the output bearing and the reduction bearing, without having to separately set up a bearing seat to install the corresponding bearings.

[0015] The utility model is further configured such that a mounting groove is provided on the outer side of the lower box body, a lower reel bearing hole with a half-hole structure is provided on the mounting groove, a cover body is provided on the outer side of the upper box body, an upper reel bearing hole with a half-hole structure is provided on the cover body, the upper reel bearing hole and the lower reel bearing hole are assembled together to form a reel bearing hole, the reel bearing hole is arranged concentrically with the output bearing hole, the mounting groove, the lower box body, the cover body and the upper box body are enclosed together to form a containing space, and the containing space is separated from the space enclosed by the upper box body and the lower box body. Since the reel shaft is connected to the output shaft through a coupling during on-site debugging and installation, the reel shaft and the coupling are both located in the containing space, and the containing space is separated from the space enclosed by the upper box body and the lower box body. This makes it unnecessary to disassemble the upper box body and the lower box body when debugging and installing the reel shaft and the coupling on-site, and only the cover body and the mounting groove need to be disassembled. This avoids the humid environment at the debugging site from causing rust and other effects on the reducer parts inside the box body, thereby ensuring the service life of the reducer.

[0016] The utility model is further configured that a maintenance hole is provided on the groove wall of the installation groove, through which the parts in the installation groove can be inspected and repaired without opening the cover body.

[0017] The utility model is further configured that the cover body is connected to the upper box body and the lower box body by second bolts, and the second bolts can facilitate the installation and removal of the cover body and the upper box body.

[0018] In summary, the box structure for a ship lift reducer provided by the utility model has at least the following

[0019] Beneficial effects:

[0020] 1. The resistance of the first shunt bearing seat to axial force is improved, thereby improving the stability of the first shunt bearing seat and further increasing the service life of the gearbox.

[0021] 2. There is no need to disassemble the upper and lower boxes when debugging and installing the reel shaft on site, which ensures the sealing of the upper and lower boxes, thereby avoiding the erosion of the reducer components inside the box body by environmental factors on site and extending the service life of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any novel labor.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is an exploded schematic diagram of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the lower box body in the utility model;

[0026] Figure 4 It is the front view of the utility model;

[0027] Figure 5 yes Figure 4 Cross-sectional view at AA in the middle.

[0028] Figure numerals: 1, upper box body, 2, lower box body, 3, mounting hole, 4, first diverter bearing seat, 401, first base, 402, first bearing cover, 5, second diverter bearing seat, 501, second base, 502, second bearing cover, 6, diverter bearing hole, 7, mounting port, 8, sealing cover, 9, support plate, 10, observation window, 11, output bearing hole, 1101, upper output bearing hole, 1102, lower output bearing hole, 12, reduction bearing hole, 1201, upper reduction bearing hole, 1202, lower reduction bearing hole, 13, mounting groove, 14, cover body, 15, upper drum bearing hole, 16, lower drum bearing hole, 17, maintenance hole. DETAILED DESCRIPTION

[0029] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-5 The utility model is further described in detail with specific implementation methods.

[0030] See also Figure 1-5 , a box structure for a ship lift reducer provided in this embodiment includes a box body, and the box body includes an upper box 1 and a lower box 2 that are detachably connected. The bottom of the upper box 1 has an opening, and the top of the lower box 2 has an opening, and the openings of the upper box 1 and the lower box 2 are interlocked to form a box body. The upper box 1 and the lower box 2 are preferably connected by bolts. A mounting hole 3 is provided on the upper box 1, and the mounting hole 3 runs through the left and right sides of the upper box 1. The mounting hole 3 is used to install the first diverter shaft, and the first diverter shaft is the first diverter shaft introduced in the background technology. A diverter bearing hole 6 is provided on the lower box 2, and the diverter bearing hole 6 is used to install the bearing of the second diverter shaft, and the second diverter shaft is the second diverter shaft in the background technology. A first diverter bearing seat 4 is provided in the upper box 1, and the first diverter bearing seat 4 is used to install the first diverter shaft. There are two first diverter bearing seats 4, which correspond to the left and right side walls of the upper box 1 respectively. The first shunt bearing seat 4 includes a first bearing cover 402 and a first base 401. The first bearing cover 402 is detachably connected to the first base 401. The first base 401 is fixedly connected to the upper box body 1. The first shunt bearing seat 4 is concentrically arranged with the mounting hole 3. In this embodiment, the connection method between the first base 401 and the upper box body 1 is preferably a welding connection. For the stability of the second shunt shaft, a second shunt bearing seat 5 is also provided in the lower box body 2. The second shunt bearing seat 5 includes a second base 501 and a second bearing cover 502. The second base 501 is fixedly connected to the bottom of the inner side of the lower box body 2. The second bearing cover 502 is connected to the second base 501 by bolts.

[0031] By adopting the above solution, since the first base 401 of the first shunt bearing seat 4 is fixedly connected to the upper housing 1, and the first shunt bearing seat 4 is located on the inner side of the upper housing 1, the upper housing 1 can resist the axial force exerted on the first shunt bearing seat 4, thereby reducing the influence of the axial force on the first shunt bearing seat 4. The first shunt bearing seat 4 is prevented from being separated from the upper housing 1, the stability of the first shunt bearing seat 4 is improved, thereby improving the service life of the gearbox.

[0032] In order to facilitate the installation of the reducer parts into the interior of the upper case 1 or the maintenance work on the interior without disassembling the connection between the upper case 1 and the lower case 2, a mounting opening 7 is further provided on the top of the upper case 1, and a sealing cover 8 is detachably connected to the upper case 1, and the sealing cover 8 closes the mounting opening 7. Specifically, a plurality of support plates 9 are provided on the inner side of the upper case 1, and the sealing cover 8 is connected to the support plate 9 by a first bolt. In this embodiment, the mounting opening 7 is preferably a rectangular opening, and a triangular support plate 9 is provided at each of the four corners of the mounting opening 7. The sealing cover 8 is rectangular, matching the shape and size of the mounting opening 7, and the four corners of the sealing cover 8 are respectively connected to the corresponding support plates 9 by bolts.

[0033] In order to facilitate the observation of the meshing condition of the gears in the box during operation, further, at least one observation window 10 is provided on the sealing cover 8. The observation window 10 can be an observation hole opened on the sealing cover 8, and the observation hole is closed by a transparent cover plate.

[0034] The box body is provided with an output bearing hole 11 and a plurality of reduction bearing holes 12, and the output bearing hole 11 and the reduction bearing hole 12 both run through the left and right sides of the box body. Among them, the output bearing hole 11 is used to install the bearing of the output shaft, and the reduction bearing hole 12 is used to install the bearing of the reduction shaft of the reducer. All the reduction bearing holes 12 are arranged side by side, and the plane formed by the axes of all the reduction bearing holes 12 is perpendicular to the plane formed by the axes of the mounting hole 3 and the diverter bearing hole 6, and the mounting hole 3 and the diverter bearing hole 6 are both located between the output bearing hole 11 and the reduction bearing hole 12. Specifically, the upper housing 1 is provided with an upper output bearing hole 1101 with a half-hole structure and a plurality of upper reduction bearing holes 1201, the lower housing 2 is provided with a lower output bearing hole 1102 with a half-hole structure corresponding to the upper output bearing hole 1101, and a plurality of lower reduction bearing holes 1202 with a half-hole structure corresponding one to one to the upper reduction bearing hole 1201, the upper output bearing hole 1101 and the lower output bearing hole 1102 together form an output bearing hole 11, and the upper reduction bearing hole 1201 and the corresponding lower reduction bearing hole 1202 together form a reduction bearing hole 12.

[0035] In order to prevent the damp environment at the debugging site from causing rust and other effects on the reducer parts inside the box, further, a mounting groove 13 is provided on the outer side of the lower box 2. In this embodiment, the mounting grooves 13 are preferably provided on the left and right sides of the lower box 2, corresponding to the output bearing holes 11 on the left and right sides of the lower box 2 respectively. The groove wall of the mounting groove 13 is provided with a lower drum bearing hole 16 with a semi-hole structure, and a cover body 14 is provided on the outer side of the upper box 1. The cover body 14 is connected to the upper box 1 and the lower box 2 by a second bolt. Specifically, the second bolt connecting the cover body 14 to the upper box 1 is arranged horizontally, and the second bolt connecting the cover body 14 to the lower box 2 is arranged vertically. The cover body 14 is provided with an upper drum bearing hole 15 with a semi-hole structure, and the upper drum bearing hole 15 and the lower drum bearing hole 16 are combined to form a drum bearing hole, and the drum bearing hole is arranged concentrically with the output bearing hole 11. The mounting groove 13, the lower case 2, the cover 14 and the upper case 1 together form a containing space, and the containing space is separated from the space enclosed by the upper case 1 and the lower case 2. Specifically, after the installation of the reel shaft and the reel middle bearing is completed, the containing space is separated from the space enclosed by the upper case 1 and the lower case 2. Since the reel shaft is connected to the output shaft through a coupling during on-site debugging and installation, the reel shaft and the coupling are both located in the containing space, and the containing space is separated from the space enclosed by the upper case 1 and the lower case 2. This makes it unnecessary to disassemble the upper case 1 and the lower case 2 when debugging and installing the reel shaft and the coupling on-site, and it is only necessary to disassemble the cover 14 and the mounting groove 13. This avoids the humid environment at the debugging site from causing rust and other effects on the reducer components inside the case, thereby ensuring the service life of the reducer.

[0036] In order to facilitate the inspection and repair of the components in the installation slot 13 without opening the cover 14, a maintenance hole 17 is further provided on the slot wall of the installation slot 13. In this embodiment, a maintenance hole 17 is preferably provided on both the front side and the rear side of the installation slot 13, and a gusset plate can be provided at the maintenance hole 17 to close it.

[0037] It should be noted that the words indicating direction in this article, such as up and down, are all based on Figure 1 The setting of the direction is only for the convenience of description and has no other specific meaning.

[0038] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0039] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A box structure for a ship lift reducer, comprising a box body, wherein the box body comprises an upper box (1) and a lower box (2) which are detachably connected, wherein a mounting hole (3) is provided on the upper box (1), wherein the mounting hole (3) is used to mount a first diverter shaft, and wherein: A first flow-dividing bearing seat (4) is provided in the upper housing (1), and the first flow-dividing bearing seat (4) is used for mounting the first flow-dividing shaft. The first flow-dividing bearing seat (4) comprises a first base (401) and a first bearing cover (402), and the first bearing cover (402) is detachably connected to the first base (401), and the first base (401) is fixedly connected to the upper housing (1).

2. A box structure for a ship lift reducer as claimed in claim 1, characterized in that: The first base (401) is connected to the upper box body (1) by welding.

3. A box structure for a ship lift reducer as claimed in claim 1 or 2, characterized in that: The top of the upper box body (1) is provided with an installation opening (7), and the upper box body (1) is detachably connected to a sealing cover (8), and the sealing cover (8) seals the installation opening (7).

4. A box structure for a ship lift reducer as claimed in claim 3, characterized in that: A plurality of support plates (9) are provided on the inner side of the upper box body (1), and the sealing cover (8) is connected to the support plates (9) via first bolts.

5. The box structure for a ship lift reducer as claimed in claim 3, characterized in that: At least one observation window (10) is provided on the sealing cover (8).

6. A box structure for a ship lift reducer as claimed in claim 1, characterized in that: The housing body is provided with an output bearing hole (11) and a plurality of speed reduction bearing holes (12); the lower housing (2) is provided with a flow diversion bearing hole (6); all the speed reduction bearing holes (12) are arranged side by side; the plane formed by the axes of all the speed reduction bearing holes (12) is perpendicular to the plane formed by the axes of the mounting hole (3) and the flow diversion bearing hole (6); the mounting hole (3) and the flow diversion bearing hole (6) are both located between the output bearing hole (11) and the speed reduction bearing hole (12).

7. A box structure for a ship lift reducer as claimed in claim 6, characterized in that: The upper housing (1) is provided with an upper output bearing hole (1101) of a half-hole structure and a plurality of upper reduction bearing holes (1201); the lower housing (2) is provided with a lower output bearing hole (1102) of a half-hole structure corresponding to the upper output bearing hole (1101), and a plurality of lower reduction bearing holes (1202) of a half-hole structure corresponding one-to-one to the upper reduction bearing hole (1201); the upper output bearing hole (1101) and the lower output bearing hole (1102) together form the output bearing hole (11); and the upper reduction bearing hole (1201) and the corresponding lower reduction bearing hole (1202) together form the reduction bearing hole (12).

8. A box structure for a ship lift reducer as claimed in claim 7, characterized in that: The lower box body (2) is provided with a mounting groove (13) on the outer side, and a lower drum bearing hole (16) with a semi-hole structure is provided on the mounting groove (13); the upper box body (1) is provided with a cover body (14) on the outer side, and an upper drum bearing hole (15) with a semi-hole structure is provided on the cover body (14); the upper drum bearing hole (15) and the lower drum bearing hole (16) are combined to form a drum bearing hole; the drum bearing hole is arranged concentrically with the output bearing hole (11); the mounting groove (13), the lower box body (2), the cover body (14) and the upper box body (1) are combined to form a containing space; the containing space is separated from the space enclosed by the upper box body (1) and the lower box body (2).

9. A box structure for a ship lift reducer as claimed in claim 8, characterized in that: A maintenance hole (17) is provided on the groove wall of the installation groove (13).

10. A box structure for a ship lift reducer as claimed in claim 8, characterized in that: The cover body (14) is connected to the upper box body (1) and the lower box body (2) via second bolts.

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