CN220306156U - Transmission shaft mounting structure on mechanism box - Google Patents
Transmission shaft mounting structure on mechanism box Download PDFInfo
- Publication number
- CN220306156U CN220306156U CN202322355961.1U CN202322355961U CN220306156U CN 220306156 U CN220306156 U CN 220306156U CN 202322355961 U CN202322355961 U CN 202322355961U CN 220306156 U CN220306156 U CN 220306156U
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- transmission shaft
- sleeve
- mechanism box
- positioning
- mounting structure
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model discloses a mechanism box upper transmission shaft mounting structure which comprises a flange shaft sleeve, a transmission shaft and a limiting piece, wherein a positioning through hole is formed in the side wall of a mechanism box; the flange shaft sleeve comprises a circular tube-shaped sleeve and a flange plate fixed on the periphery of the sleeve, one end of the sleeve is provided with a positioning tube part which is in plug-in fit with the positioning through hole, the flange plate is annular, the side end face of the flange plate is attached to the outer wall of the mechanism box and is welded and fixed, and the transmission shaft is arranged in the sleeve in a penetrating manner; the transmission shaft is provided with a stop step propped against the inner end of the sleeve, the limiting piece is fixed on the transmission shaft and is matched with the outer end of the sleeve in a propping way, and a sealing part is arranged between the transmission shaft and the sleeve. The structure of the utility model is designed in an optimized way, so that the transmission shaft is more convenient to install, the number of parts required by the installation of the transmission shaft is less, the manufacturing cost is lower, and the utility model has good practicability.
Description
Technical Field
The utility model belongs to the field of structural design of outdoor vacuum circuit breakers, and particularly relates to a transmission shaft mounting structure on a mechanism box.
Background
The ZW32 outdoor high-voltage vacuum circuit breaker (also called as an outdoor column vacuum switch) is suitable for a power system with three-phase alternating current of 50Hz and rated voltage of 12kV, and can break and close circuit load current, overload current and short-circuit current. The method is widely applied to line segmentation, protection and control of power distribution systems of substations, urban and rural power grids and industrial and mining enterprises, and is more suitable for rural power grids and places with frequent operation. The existing ZW32 outdoor high-voltage vacuum circuit breaker mainly comprises a mechanism box and three solid-sealed polar poles fixed at the upper end of the mechanism box, and a moving contact of a vacuum arc-extinguishing chamber in the solid-sealed polar poles is driven to act by an operating mechanism in the operating mechanism box when opening and closing. The outside of the mechanism box is usually provided with a switching-on/off handle, a state indication board, an energy storage handle and other components which are linked with the inside of the mechanism box, and the components are in transmission connection with the operating mechanism through a transmission shaft.
Patent document CN211238085U discloses a switching indicating device for an outdoor permanent magnet vacuum circuit breaker, in which a shaft (corresponding to a transmission shaft in the application) is installed by using a plurality of components such as a bearing seat, a flange bearing, a bearing end cover, an inner hexagonal screw and the like, so that the structure is complex, the assembly is complicated, the manufacturing cost is high, and therefore, the structure can be further optimized.
Disclosure of Invention
In this regard, the utility model aims to provide a transmission shaft mounting structure on a mechanism box, which has a reasonable structure, is simple in mounting structure and convenient to mount, and can reduce the manufacturing cost.
The technical scheme for realizing the aim of the utility model is as follows:
the utility model provides a mechanism box upper transmission shaft mounting structure which comprises a flange shaft sleeve, a transmission shaft and a limiting piece, wherein a positioning through hole is formed in the side wall of a mechanism box;
the flange shaft sleeve comprises a circular tube-shaped sleeve and a flange plate fixed on the periphery of the sleeve, one end of the sleeve is provided with a positioning tube part which is in plug-in fit with the positioning through hole, the flange plate is annular, the side end face of the flange plate is attached to the outer wall of the mechanism box and is fixed in a welding manner, and the transmission shaft penetrates through the sleeve;
the transmission shaft is provided with a stop step propped against the inner end of the sleeve, the limiting piece is fixed on the transmission shaft and is matched with the outer end of the sleeve in a propping way, and a sealing part is arranged between the transmission shaft and the sleeve.
Preferably, the limiting part is a clamp spring, and the transmission shaft is provided with a clamping groove which is clamped with the clamp spring.
Preferably, an annular caulking groove is formed in the outer peripheral wall of the inner part of the sleeve on the transmission shaft, and the sealing component is a rubber ring embedded in the annular caulking groove.
Preferably, the number of the sealing parts is at least two, and at least two sealing parts are axially arranged at intervals along the transmission shaft.
Preferably, the outer diameter of the inner end of the transmission shaft is smaller than the aperture of the positioning through hole.
The utility model has the positive effects that: the structure of the transmission shaft mounting structure on the mechanism box is optimally designed, the structure is simple, the number of used parts is obviously reduced, the assembly is convenient, the production cost can be effectively reduced, and the production efficiency is improved; specifically, when the device is assembled, the transmission shaft and the flange shaft sleeve are assembled together, then the flange shaft sleeve is positioned through the cooperation of the positioning pipe part and the positioning through hole, and then the flange plate and the mechanism box are welded and fixed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a mechanism box according to the present utility model;
FIG. 2 is a top view of the mechanism housing of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a partially enlarged view at B in fig. 3.
The reference numerals shown in the figures are: 1-a flange shaft sleeve; 11-a sleeve; 12-a flange plate; 13-positioning the tube part; 2-a transmission shaft; 20-stop steps; 21-an annular caulking groove; 3-limiting parts; 4-a mechanism box; 41-positioning through holes; 42-top wall panel; 43-side wall panels; 44-bottom wall plate; 45-reinforcing the lining plate; 451-reinforcing the hem; 46-reinforcing steel bars; 5-a sealing member; 6-opening and closing a handle; 7-an energy storage handle; 8-a status indicator; 9-an operating mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model.
In this embodiment, as shown in fig. 1 to 4, the transmission shaft mounting structure on the mechanism box may be used for transmission connection between the opening and closing handle 6 and the operating mechanism 9, and may also be used for transmission connection between the components such as the status indication board 8 and the energy storage handle 7 and the operating mechanism 9.
The device comprises a flange shaft sleeve 1, a transmission shaft 2 and a limiting piece 3, wherein a positioning through hole 41 is formed in the side wall of a mechanism box 4; the flange shaft sleeve 1 comprises a circular tube-shaped sleeve 11 and a flange plate 12 fixed on the periphery of the sleeve 11, one end of the sleeve 11 is provided with a positioning tube part 13 which is in plug-in fit with the positioning through hole 41, the flange plate 12 is annular, the side end face of the flange plate is attached to the outer wall of the mechanism box 4 and is welded and fixed, the sealing between the flange plate 12 and the mechanism box 4 can be realized by welding the periphery of the flange plate 12 and the mechanism box 4, an O-shaped rubber ring can be tightly pressed between the flange plate 4 and the mechanism box 4 for increasing the sealing performance in actual operation, and the transmission shaft 2 is arranged in the sleeve 11 in a penetrating manner; the transmission shaft 2 is provided with a stop step 20 propped against the inner end of the sleeve 11, the limiting piece 3 is fixed on the transmission shaft 2 and is matched with the outer end of the sleeve 11 in a blocking way, so that the transmission shaft 2 is axially limited through the matching of the limiting piece 3 and the stop step 20, namely, the transmission shaft 2 is prevented from axially moving relative to the flange shaft sleeve 1, the transmission shaft 2 and the flange shaft sleeve 1 are assembled together during assembly, then the flange shaft sleeve 1 is fixedly connected with the mechanism box 4, and the flange shaft sleeve 1 is positioned through the matching of the positioning pipe part 13 and the positioning through hole 41.
The flange 12 and the sleeve 11 are integrally formed or welded together.
In this embodiment, the outer diameter of the inner end of the transmission shaft 2 is smaller than the aperture of the positioning through hole 41, so as to adapt to the situation that the inner end of the transmission shaft 2 passes through the positioning through hole 41 and stretches into the mechanism box 4 during assembly.
As shown in fig. 4, a sealing member 5 is provided between the transmission shaft 2 and the sleeve 11, and a gap between the transmission shaft 2 and the sleeve 11 is sealed by the sealing member 5, so that rainwater and dust are prevented from entering the mechanism box 4 through the gap between the transmission shaft 2 and the sleeve 11.
Further, in this embodiment, an annular caulking groove 21 is provided on the outer peripheral wall of the inner portion of the sleeve 11 on the transmission shaft 2, and the sealing member 5 is a rubber ring embedded in the annular caulking groove 21, that is, positioned in the annular caulking groove 21 by the rubber ring, and sealed between the transmission shaft 2 and the sleeve 11 by pressing the rubber ring; in order to ensure tightness, the number of the sealing elements is two in the embodiment, the two sealing elements 5 are axially arranged at intervals along the transmission shaft 2, and the number of the sealing elements can be three or four in actual operation.
For convenient equipment, locating part 3 in this embodiment adopts the jump ring, be equipped with on the transmission shaft 2 with the draw-in groove of jump ring joint realizes reliably locating the jump ring through jump ring and draw-in groove joint.
The mechanism box 4 in the embodiment comprises a top wall plate 42, peripheral side wall plates 43 and a bottom wall plate 44, wherein a reinforcing lining plate 45 is fixed on the inner side wall of the top wall plate 42, the top end of the side wall plate 43 is fixedly connected with the top wall plate 42, the edge of the reinforcing lining plate 45 is provided with a reinforcing folded edge 451 fixedly connected with the side wall plate 43, a reinforcing steel bar 46 is fixed on the inner side of the bottom of the side wall plate 43, and the bottom wall plate 44 is fixedly connected with the reinforcing steel bar 46 through screws; the provision of the reinforcing lining plates 45 and the reinforcing steel bars 46 can effectively enhance the overall strength of the mechanism case 4.
It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the utility model remain within the scope of the utility model.
Claims (5)
1. The transmission shaft mounting structure on the mechanism box is characterized by comprising a flange shaft sleeve (1), a transmission shaft (2) and a limiting piece (3), wherein a positioning through hole (41) is formed in the side wall of the mechanism box (4);
the flange shaft sleeve (1) comprises a circular tube-shaped sleeve (11) and a flange plate (12) fixed on the periphery of the sleeve (11), one end of the sleeve (11) is provided with a positioning tube part (13) which is in plug-in fit with the positioning through hole (41), the flange plate (12) is annular, the side end face of the flange plate is attached to the outer wall of the mechanism box (4) and is welded and fixed, and the transmission shaft (2) is arranged in the sleeve (11) in a penetrating manner;
the transmission shaft (2) is provided with a stop step (20) propped against the inner end of the sleeve (11), the limiting piece (3) is fixed on the transmission shaft (2) and is matched with the outer end of the sleeve (11) in a propping way, and a sealing part (5) is arranged between the transmission shaft (2) and the sleeve (11).
2. The mechanism box upper transmission shaft mounting structure according to claim 1, wherein the limiting piece (3) is a clamp spring, and the transmission shaft (2) is provided with a clamping groove clamped with the clamp spring.
3. The mechanism box upper transmission shaft mounting structure according to claim 1, wherein an annular caulking groove (21) is provided on an outer peripheral wall of an inner portion of the sleeve (11) on the transmission shaft (2), and the sealing member (5) is a rubber ring fitted in the annular caulking groove (21).
4. A mechanism box propeller shaft mounting structure according to claim 3, wherein the number of the seal members (5) is at least two, and at least two seal members (5) are arranged at intervals along the propeller shaft (2) in the axial direction.
5. The mechanism box upper transmission shaft mounting structure according to claim 1, wherein the outer diameter of the inner end of the transmission shaft (2) is smaller than the aperture of the positioning through hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322355961.1U CN220306156U (en) | 2023-08-30 | 2023-08-30 | Transmission shaft mounting structure on mechanism box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322355961.1U CN220306156U (en) | 2023-08-30 | 2023-08-30 | Transmission shaft mounting structure on mechanism box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220306156U true CN220306156U (en) | 2024-01-05 |
Family
ID=89376101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322355961.1U Active CN220306156U (en) | 2023-08-30 | 2023-08-30 | Transmission shaft mounting structure on mechanism box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220306156U (en) |
-
2023
- 2023-08-30 CN CN202322355961.1U patent/CN220306156U/en active Active
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