Limiting device for output shaft bearing of disconnecting switch of combined electric appliance

Abstract

The utility model relates to the field of limiting devices, in particular to a combined electric appliance disconnecting switch output shaft bearing limiting device. The fixing device comprises a fixing plate, a limiting rod and a fastening threaded sleeve. The fixing plate is provided with a cushion block which can abut against the end face of the inner side bearing, and the fixing plate is provided with a threaded hole a; the fastening threaded sleeve is provided with a threaded hole b; one end of the limiting rod is provided with a thread a in threaded connection with the threaded hole a, and the other end of the limiting rod is provided with a thread b in threaded connection with the threaded hole b. When the output shaft is disassembled, the inner side bearing does not need to be disassembled together, so that the disassembly and assembly time is saved, and the maintenance efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the field of limit devices, in particular to a limit device for the output shaft bearing of a combined electrical isolation switch. Background Art

[0002] With the development of the power industry, the number of combined electrical appliances in operation is increasing, and the inspection and maintenance of equipment is becoming more and more important. Combined electrical appliances that have been in operation for many years inevitably need regular inspection or unplanned repair. However, in order to ensure power supply reliability and reduce power outage losses, equipment inspection time is often very tight, which requires the inspection work to ensure high efficiency. At present, when disassembling the output shaft of the disconnector, the inner bearing needs to be removed at the same time, which is time-consuming. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes a bearing limit device for the output shaft of a combined electrical isolating switch, which can save disassembly and assembly time and ensure maintenance efficiency without removing the inner bearing when disassembling the output shaft.

[0004] The technical solution of the utility model is a combined electrical isolation switch output shaft bearing limit device, comprising a fixed plate, a limit rod and a fastening threaded sleeve; the fixed plate has a pad that can be tightly pressed against the inner side bearing end surface, and the fixed plate has a threaded hole a; the fastening threaded sleeve has a threaded hole b; one end of the limit rod has a thread a threadedly connected to the threaded hole a, and the other end of the limit rod has a thread b threadedly connected to the threaded hole b.

[0005] Preferably, the fixing plate is an L-shaped plate, comprising a horizontal plate portion and a vertical plate portion vertically connected to the bottom end of the horizontal plate portion.

[0006] Preferably, bolt holes are provided on the horizontal plate portion.

[0007] Preferably, a slot is provided at the bottom of the vertical plate portion, and two cushion blocks are symmetrically arranged about the slot.

[0008] Preferably, two threaded holes a are symmetrically arranged with respect to the slot, and two limit rods and two fastening threaded sleeves are arranged correspondingly.

[0009] Compared with the prior art, the utility model has the following beneficial technical effects:

[0010] The utility model can remove the output shaft without removing the inner bearing, thereby saving disassembly and assembly time and ensuring maintenance efficiency. By adjusting the positions of the limit rod, the fixing plate and the tightening threaded sleeve, the fixing plate is pressed against the outer ring of the inner bearing, and the tightening threaded sleeve is pressed against the bearing seat B. When removing the output shaft, because the inner bearing is tightened, the output shaft can be removed without removing the inner bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural front view of an embodiment of the utility model;

[0012] Figure 2 A top view of the structure of an embodiment of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the fixing plate in the embodiment of the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the limit rod in the embodiment of the utility model;

[0015] Figure 5 It is a structural sectional view of a fastening threaded sleeve in an embodiment of the utility model.

[0016] Figure numerals: 1, fixing plate; 101, slot; 102, threaded hole a; 103, cushion block; 2, limiting rod; 21, thread a; 22, thread b; 3, fastening threaded sleeve; 301, threaded hole b; 4, bearing seat a; 5, inner bearing; 6, insulating rod; 7, output shaft; 8, bearing seat b. DETAILED DESCRIPTION

[0017] Embodiment 1

[0018] like Figure 1-Figure 5 As shown, a bearing limit device for the output shaft of a combined electrical disconnector proposed in this embodiment can limit the inner bearing 5 in the disconnector, the inner bearing 5 is mounted on the bearing seat a4, the output shaft 7 is mounted on the inner bearing 5 and the bearing at the bearing seat b8, and the disconnector also has an insulating rod 6. The bearing limit device includes a fixing plate 1, a limit rod 2 and a fastening threaded sleeve 3, and is respectively tightened on the inner bearing 5 and the bearing seat b8 through the fixing plate 1 and the fastening threaded sleeve 3.

[0019] The fixing plate 1 has a cushion block 103 that can be pressed against the end surface of the inner bearing 5, and the fixing plate 1 has a threaded hole a102. The fastening threaded sleeve 3 has a threaded hole b301, and the threaded hole b301 is coaxial with the threaded hole a102. One end of the limiting rod 2 has a thread a21 threadedly connected to the threaded hole a102, and the other end of the limiting rod 2 has a thread b22 threadedly connected to the threaded hole b301, so that it can be threadedly connected to the fixing plate 1 and the fastening threaded sleeve 3 respectively.

[0020] This embodiment can remove the output shaft 7 without removing the inner bearing 5, thereby saving disassembly and assembly time and ensuring maintenance efficiency. When fixing the inner bearing 5, first place the pad 103 of the fixing plate 1 against the outer ring of the inner bearing 5, then screw one end of the limit rod 2 to the threaded hole a102 through the thread a21, then screw the fastening thread sleeve 3 to the thread b22 through the threaded hole b301, adjust the position of the threaded connection, press the fixing plate 1 against the outer ring of the inner bearing 5, press the fastening thread sleeve 3 against the bearing seat b8, and then fix the fixing plate 1. When removing the output shaft 7, because the inner bearing 5 is tightened, the output shaft 7 can be removed without removing the inner bearing 5.

[0021] Embodiment 2

[0022] like Figure 1-Figure 5 As shown, this embodiment proposes a combination electrical isolating switch output shaft bearing limit device. Compared with the first embodiment, in this embodiment, the fixed plate 1 is an L-shaped plate, including a horizontal plate portion and a vertical plate portion vertically connected to the bottom end of the horizontal plate portion.

[0023] like Figure 1 As shown, bolt holes are provided on the horizontal plate portion, so as to facilitate fixing the fixing plate 1 with bolts.

[0024] like Figure 3 As shown, a slot 101 is provided at the bottom of the vertical plate portion, and two cushion blocks 103 are symmetrically provided about the slot 101. The slot 101 is located at the periphery of the output shaft 7. The two cushion blocks 103 abut against two positions on the inner bearing 5, and the limiting effect is better.

[0025] Two threaded holes a102 are symmetrically arranged with respect to the slot 101, and two limiting rods 2 and two fastening threaded sleeves 3 are arranged correspondingly. The positions of the two fastening threaded sleeves 3 are adjusted by the two limiting rods 2, and the tightening and limiting effect of the two fastening threaded sleeves 3 is better.

[0026] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A bearing limit device for the output shaft of a combined electrical isolation switch, characterized in that: include: A fixing plate (1) having a spacer (103) capable of pressing against the end surface of the inner bearing (5) and having a threaded hole a (102); A fastening threaded sleeve (3) having a threaded hole b (301); The limiting rod (2) has a thread a (21) threadedly connected to the threaded hole a (102) at one end and a thread b (22) threadedly connected to the threaded hole b (301) at the other end.

2. The output shaft bearing limit device of the combined electrical appliance isolating switch according to claim 1 is characterized in that: The fixed plate (1) is an L-shaped plate, comprising a horizontal plate portion and a vertical plate portion vertically connected to the bottom end of the horizontal plate portion.

3. The output shaft bearing limit device of the combined electrical appliance isolating switch according to claim 2 is characterized in that: Bolt holes are arranged on the horizontal plate portion.

4. The output shaft bearing limit device of the combined electrical appliance isolating switch according to claim 2 is characterized in that: A slot (101) is provided at the bottom of the vertical plate portion, and two cushion blocks (103) are symmetrically arranged about the slot (101).

5. The output shaft bearing limit device of the combined electrical appliance isolating switch according to claim 4 is characterized in that: Two threaded holes a (102) are symmetrically arranged with respect to the clamping groove (101), and two limiting rods (2) and two fastening threaded sleeves (3) are correspondingly arranged.

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