Speed reducer for electric power engineering
By designing a reducer structure for power engineering including brackets, bracket components and worm gear reducers, the existing reducers are easily susceptible to water and high cost of transmission shafts, and the reduction of water and liquid infringement and cost reduction are achieved. effect.
Patent Information
- Application Number
- CN202421503486.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing reducers for power engineering are easily immersed by water and liquid due to their low position, and require a longer drive shaft, resulting in high costs.
A reducer structure including a bracket, a bracket assembly and a worm gear reducer is designed. The worm gear reducer consists of an upper shell and a lower shell, and is fixed by a detachable connection between bolts and nuts, and the bracket assembly is passed through the first frame. , the second frame and the slot set the worm gear reducer in a higher position on the bracket.
By setting the worm gear reducer in a higher position, water immersion is avoided, and the length of the drive shaft is reduced, cost is reduced, and installation and maintenance are facilitated.
Smart Images
Figure CN222502601U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of speed reducers for electric power engineering, in particular to a speed reducer for electric power engineering. Background Art
[0002] Special reducers are used in power engineering. For example, the reducer used to drive the knife switch in the substation generally adopts a worm gear reducer. The worm gear reducers are connected in series and then driven by a motor. The worm gear reducer can drive the knife switch to rotate, thereby realizing the function of opening and closing the switch, and controlling the power on and off of the high-voltage line. The disadvantage of the existing reducer for power engineering is that, because it is set at a relatively low position, an extended transmission shaft needs to be connected to the knife switch. On the one hand, the relatively low position is prone to water immersion, and on the other hand, the longer transmission shaft is more expensive. People have conducted a lot of research on this. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a speed reducer for electric power engineering, which can solve the above-mentioned problems in the prior art.
[0004] The utility model is realized through the following technical scheme: a reducer for electric power engineering of the utility model is characterized in that it includes a bracket, a bracket assembly is arranged on the bracket, a worm gear reducer is installed on one side of the bracket assembly, the bracket assembly is arranged on the upper side of the bracket, the worm gear reducer includes an upper shell and a lower shell, the upper shell and the lower shell are detachably connected and fixed, and a worm gear transmission assembly and a limiting assembly for installing the worm gear transmission assembly are arranged in the upper shell and the lower shell.
[0005] According to a further technical solution, the bracket assembly includes a first frame, a card slot is provided in the first frame, the card slot is connected to the outer surface of the bracket, a second frame is installed on one side of the first frame, and the second frame is connected and fixed to the lower shell.
[0006] A further technical solution is that the worm gear transmission assembly includes a rotating shaft, a worm is provided on the outer surface of the rotating shaft, a worm wheel is meshingly provided on one side of the worm, an intermediate rotating shaft is provided inside the worm wheel, the intermediate rotating shaft is rotatably arranged in the lower shell and the upper shell, the intermediate rotating shaft extends out of the upper shell, and the rotating shaft is rotatably connected with the upper shell and the lower shell.
[0007] A further technical solution is that the limit assembly includes an installation groove arranged on the upper shell body and the worm gear, a first bearing is clamped in the installation groove, the first bearing is rotatably connected with the rotating shaft, a top end cover is arranged in the upper shell body, a bottom end cover is arranged in the lower shell body, a second bearing is arranged in the top end cover and the bottom end cover, the intermediate rotating shaft is rotatably connected with the second bearing, and the intermediate rotating shaft passes through the top end cover.
[0008] According to a further technical solution, the mounting grooves located in the upper housing and the worm gear abut against each other to form a full-circle structure.
[0009] According to a further technical solution, an end cover is arranged on the outside of the installation groove, and the end cover is connected and fixed to the lower shell and the upper shell.
[0010] According to a further technical solution, connecting shafts are arranged on both sides of the rotating shaft.
[0011] According to a further technical solution, a connecting disk is provided on the top of the intermediate rotating shaft.
[0012] The beneficial effects of the utility model are:
[0013] 1. The worm gear reducer is arranged at a higher position on the bracket by using the first frame, the second frame and the slot, so that the connecting plate can be better connected to the input end of the knife switch and avoid using a longer transmission shaft.
[0014] Second, by separating the upper shell and the lower shell, it is convenient to install bearings and other parts, and also convenient for personnel to perform maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.
[0016] Figure 1 This is a schematic diagram of the structure of a reducer for electric power engineering installed on a bracket according to the utility model;
[0017] Figure 2 for Figure 1 Schematic diagram of the reducer from another perspective;
[0018] Figure 3 for Figure 2 Schematic diagram of the internal structure of the medium reducer;
[0019] Figure 4 for Figure 3 Schematic diagram of the structure of the middle reducer viewed from above;
[0020] In the figure, the bracket 11, the first frame 12, the second frame 13, the slot 14, the lower shell 21, the worm gear 22, the upper shell 23, the second bearing 24, the top end cover 25, the connecting plate 26, the intermediate shaft 27, the worm 28, the shaft 29, the first bearing 31, the connecting shaft 32, the mounting slot 33, and the bottom end cover 41. DETAILED DESCRIPTION
[0021] like Figure 1-Figure 4 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship are consistent. The utility model is a reducer for electric power engineering, including a bracket 11, a bracket assembly is arranged on the bracket 11, a worm gear reducer is installed on one side of the bracket assembly, the bracket assembly is arranged on the upper side of the bracket 11, the worm gear reducer includes an upper shell 23 and a lower shell 21, the upper shell 23 and the lower shell 21 are detachably connected and fixed by bolts and nuts, and a worm gear transmission assembly and a limit assembly for installing the worm gear transmission assembly are arranged in the upper shell 23 and the lower shell 21.
[0022] Advantageously, the bracket assembly includes a first frame 12, a slot 14 is provided in the first frame 12, the slot 14 is snapped onto the outer surface of the bracket 11, a bolt is provided in the slot 14, and the bolt is threadedly connected and fixed to the bracket 11, a second frame 13 is installed on one side of the first frame 12, and the second frame 13 is connected and fixed to the lower shell 21.
[0023] Advantageously, the worm gear transmission assembly includes a rotating shaft 29, a worm 28 is provided on the outer surface of the rotating shaft 29, a worm wheel 22 is meshed with one side of the worm 28, an intermediate rotating shaft 27 is provided in the worm wheel 22, the intermediate rotating shaft 27 is rotatably arranged in the lower shell 21 and the upper shell 23, the intermediate rotating shaft 27 extends out of the upper shell 23, and the rotating shaft 29 is rotatably connected with the upper shell 23 and the lower shell 21.
[0024] Advantageously, the limiting assembly includes a mounting groove 33 disposed at the contact point between the upper housing 23 and the worm gear 22. The mounting grooves 33 located in the upper housing 23 and the worm gear 22 abut against each other to form a full circular structure. A first bearing 31 is clamped in the mounting groove 33. The first bearing 31 is rotatably connected to the rotating shaft 29. A top end cover 25 is disposed in the upper housing 23. A bottom end cover 41 is disposed in the lower housing 21. A second bearing 24 is disposed in the top end cover 25 and the bottom end cover 41. The intermediate rotating shaft 27 is rotatably connected to the second bearing 24. The intermediate rotating shaft 27 passes through the top end cover 25.
[0025] Advantageously, an end cover is disposed outside the mounting groove 33 , and the end cover is connected and fixed to the lower shell 21 and the upper shell 23 .
[0026] Advantageously, connecting shafts 32 are provided on both sides of the rotating shaft 29, and the connecting shafts 32 are used to connect to the transmission shaft or the motor input shaft.
[0027] Advantageously, a connection plate 26 is provided on the top of the intermediate rotating shaft 27, and the connection plate 26 is used to connect to the input end of a knife switch used in electric power engineering to activate the knife switch.
[0028] In the power engineering, multiple brackets 11 are provided, and a knife switch is installed on the bracket 11. The worm gear reducer is stably arranged by using the card slot 14, the first frame 12 and the second frame 13, and the connecting shaft 32 and the rotating shaft 29 are located on the same axis. The transmission shaft and the coupling are connected between adjacent worm gear reducers, that is, the coupling is provided on one side of the connecting shaft 32 to connect the transmission shaft or the motor output shaft, so as to realize the function of simultaneous rotation and operation of the worm gear reducer; and then the worm 28 is used to drive the worm wheel 22 and the intermediate rotating shaft 27 to rotate, and the input end of the knife switch is connected to one side of the connecting disk 26, so that the rotation of the intermediate rotating shaft 27 can be used to drive the knife switch to control the power on and off.
[0029] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A speed reducer for electric power engineering, comprising a bracket (11), a bracket assembly being arranged on the bracket (11), a worm gear speed reducer being installed on one side of the bracket assembly, characterized in that: The bracket assembly is arranged at an upper position of the bracket (11); the worm gear reducer comprises an upper housing (23) and a lower housing (21); the upper housing (23) and the lower housing (21) are detachably connected and fixed; a worm gear transmission assembly and a limit assembly for mounting the worm gear transmission assembly are arranged in the upper housing (23) and the lower housing (21).
2. A reducer for electric power engineering according to claim 1, characterized in that: The bracket assembly comprises a first frame (12), a card slot (14) is arranged in the first frame (12), the card slot (14) is card-connected to the outer surface of the bracket (11), a second frame (13) is installed on one side of the first frame (12), and the second frame (13) is connected and fixed to the lower shell (21).
3. A reducer for electric power engineering according to claim 1, characterized in that: The worm gear transmission assembly comprises a rotating shaft (29), a worm (28) is arranged on the outer surface of the rotating shaft (29), a worm wheel (22) is meshedly arranged on one side of the worm (28), an intermediate rotating shaft (27) is arranged inside the worm wheel (22), the intermediate rotating shaft (27) is rotatably arranged inside the lower shell (21) and the upper shell (23), the intermediate rotating shaft (27) extends out of the upper shell (23), and the rotating shaft (29) is rotatably connected with the upper shell (23) and the lower shell (21).
4. A reducer for electric power engineering according to claim 3, characterized in that: The limiting assembly comprises a mounting groove (33) arranged on the upper housing (23) and the worm gear (22); a first bearing (31) is clamped in the mounting groove (33); the first bearing (31) is rotatably connected to the rotating shaft (29); a top end cover (25) is arranged in the upper housing (23); a bottom end cover (41) is arranged in the lower housing (21); a second bearing (24) is arranged in the top end cover (25) and the bottom end cover (41); the intermediate rotating shaft (27) is rotatably connected to the second bearing (24); and the intermediate rotating shaft (27) passes through the top end cover (25).
5. A reducer for electric power engineering according to claim 4, characterized in that: The mounting grooves (33) located in the upper housing (23) and the worm gear (22) abut against each other to form a full-circle structure.
6. A reducer for electric power engineering according to claim 4, characterized in that: An end cover is arranged outside the installation groove (33), and the end cover is connected and fixed to the lower shell (21) and the upper shell (23).
7. A reducer for electric power engineering according to claim 3, characterized in that: Connecting shafts (32) are arranged on both sides of the rotating shaft (29).
8. A reducer for electric power engineering according to any one of claims 3 to 7, characterized in that: A connecting disk (26) is arranged on the top of the intermediate rotating shaft (27).