Coupling for tap switch

Abstract

The utility model relates to the technical field of couplings, in particular to a coupling for a tap switch, which comprises a first half coupling sleeve, a second half coupling sleeve, an inserting rod, a connecting sleeve and an electromagnetic group. The electromagnetic group is arranged for firmly adsorbing and fixing the inserting rod in the connecting sleeve to realize the connection of the connecting sleeve and the inserting rod, so that the first half coupling sleeve and the second half coupling sleeve are assembled into a complete coupling, and when the coupling is broken and damaged, a worker only needs to cut off the electromagnetic group and then pull out the inserting rod from the connecting sleeve, so that the coupling can be replaced. Compared with a traditional coupler fixed through bolts, the coupler is more convenient and quicker to replace and higher in practicability, and the problem that after an existing coupler is broken, screws need to be detached and replaced one by one with the help of tools, and the replacement efficiency is high is solved. And the operation is troublesome.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a coupling used for a tap switch. Background Art

[0002] The coupling is a mechanical part used to connect two shafts (driving shaft and driven shaft) in different mechanisms so that they rotate together to transmit torque. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, vibration reduction and improving the dynamic performance of the shaft system. The coupling consists of two halves, which are connected to the driving shaft and the driven shaft respectively. Generally, most power machines are connected to the working machine with the help of couplings.

[0003] In existing tap changers, the coupling and the ground-insulated shaft above the switching core are usually connected together by multiple bolts. When a mechanical failure occurs in the tap changer, causing the coupling to break, workers are required to use tools to remove the screws one by one, and the replacement operation is relatively troublesome. Utility Model Content

[0004] The utility model aims to provide a coupling for a tap switch, aiming to solve the problem that after the existing coupling is broken, the screws need to be removed and replaced one by one with the help of tools, which is a relatively troublesome operation.

[0005] To achieve the above-mentioned purpose, the utility model provides a coupling for a tap switch, comprising a first half coupling sleeve, a second half coupling sleeve, an insertion rod, a connecting sleeve and an electromagnetic group; the first half coupling sleeve is arranged on one side of the second half coupling sleeve, the connecting sleeve is fixedly connected to the first half coupling sleeve and is located on the outside of the first half coupling sleeve, the insertion rod is fixedly connected to the second half coupling sleeve, and is clamped with the connecting sleeve and is located on the outside of the second half coupling sleeve, and the electromagnetic group is arranged on one side of the first half coupling sleeve.

[0006] Wherein, the electromagnetic group includes an electromagnet and an electromagnetic switch, the electromagnet is fixedly connected to the connecting sleeve and is located inside the connecting sleeve, and the electromagnetic switch is arranged on the outside of the first half coupling sleeve and is electrically connected to the electromagnet.

[0007] Wherein, the coupling for the tap switch further comprises a sealing clamp ring, and the sealing clamp ring is arranged on the outside of the first half coupling sleeve and the second half coupling sleeve.

[0008] Wherein, the sealing clamp ring includes a fixed ring and a sliding ring, the fixed ring is fixedly connected to the first half coupling sleeve and is located outside the first half coupling sleeve, the sliding ring is slidably connected to the second half coupling sleeve, and is clamped with the fixed ring, and is located outside the second half coupling sleeve.

[0009] Wherein, the sliding ring includes a sliding ring and an elastic barb, the sliding ring is slidingly connected to the second half coupling sleeve and is located on the outside of the second half coupling sleeve, the elastic barb is fixedly connected to the sliding ring and is located on one side of the sliding ring, and the sliding ring has a groove, and the groove is located on the outside of the sliding ring.

[0010] The utility model discloses a coupling for a tap switch, comprising a first half coupling sleeve, a second half coupling sleeve, a plug rod, a connecting sleeve and an electromagnetic group; the first half coupling sleeve is arranged on one side of the second half coupling sleeve, the connecting sleeve is fixedly connected to the first half coupling sleeve and is located outside the first half coupling sleeve, the plug rod is fixedly connected to the second half coupling sleeve and is clamped with the connecting sleeve and is located outside the second half coupling sleeve, and the electromagnetic group is arranged on one side of the first half coupling sleeve;

[0011] The electromagnetic group is configured to firmly adsorb and fix the insertion rod in the connecting sleeve to achieve the connection between the connecting sleeve and the insertion rod, thereby assembling the first half coupling sleeve and the second half coupling sleeve into a complete coupling. When the coupling is broken or damaged, the worker only needs to cut off the electromagnetic group and then pull the insertion rod out of the connecting sleeve to separate the first half coupling sleeve and the second half coupling sleeve, and replace the parts at the broken part, thereby completing the replacement operation of the coupling. Compared with the traditional coupling fixed with bolts, the replacement operation of the coupling is more convenient, faster and more practical, and solves the problem that after the existing coupling is broken, the screws need to be removed and replaced one by one with the help of tools, which is a more troublesome operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of a coupling for a tap changer according to the first embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of a coupling for a tap changer according to the second embodiment of the utility model.

[0015] In the figure: 101-first half coupling sleeve, 102-second half coupling sleeve, 103-insertion rod, 104-connecting sleeve, 105-electromagnet, 106-electromagnetic switch, 201-fixing ring, 202-slip ring, 203-elastic barb, 204-groove. DETAILED DESCRIPTION

[0016] The first embodiment of the present application is:

[0017] See also Figure 1 , Figure 1 It is a schematic diagram of the utility model. The coupling for the tap switch in this embodiment includes a first half coupling sleeve 101, a second half coupling sleeve 102, an insert rod 103, a connecting sleeve 104 and an electromagnetic group; the electromagnetic group includes an electromagnet 105 and an electromagnetic switch 106. The above-mentioned solution solves the problem that after the existing coupling breaks, the screws need to be removed and replaced one by one with the help of tools, which is a relatively troublesome operation. It can be understood that the above-mentioned solution can be used in coupling application scenarios.

[0018] According to this specific embodiment, the first half coupling sleeve 101 is arranged on one side of the second half coupling sleeve 102, the connecting sleeve 104 is fixedly connected to the first half coupling sleeve 101 and is located outside the first half coupling sleeve 101, the plug rod 103 is fixedly connected to the second half coupling sleeve 102 and is engaged with the connecting sleeve 104 and is located outside the second half coupling sleeve 102, and the electromagnetic group is arranged on one side of the first half coupling sleeve 101; the electromagnetic group is arranged to firmly adsorb and fix the plug rod 103 in the connecting sleeve 104, so as to realize the connection between the connecting sleeve 104 and the plug rod 103. The first half coupling sleeve 101 and the second half coupling sleeve 102 are connected to form a complete coupling. When the coupling is broken or damaged, the worker only needs to cut off the electromagnetic group and then pull out the plug rod 103 from the connecting sleeve 104 to separate the first half coupling sleeve 101 and the second half coupling sleeve 102, and replace the parts at the broken part, thereby completing the replacement operation of the coupling. Compared with the traditional coupling fixed with bolts, the replacement operation of the coupling is more convenient, faster and more practical, and solves the problem that after the existing coupling is broken, the screws need to be removed and replaced one by one with the help of tools, which is a more troublesome operation.

[0019] Among them, the electromagnet 105 is fixedly connected to the connecting sleeve 104 and is located inside the connecting sleeve 104. The electromagnetic switch 106 is arranged on the outside of the first half coupling sleeve 101 and is electrically connected to the electromagnet 105. The electromagnetic switch 106 is used to control the operation of the electromagnet 105 so that the electromagnet 105 generates suction, thereby firmly adsorbing the insertion rod 103 inserted into the connecting sleeve 104 to achieve the connection between the first half coupling sleeve 101 and the second half coupling sleeve 102. For the specific structure and connection method of the electromagnet 105 and the electromagnetic switch 106, please refer to the patent of an elastic pin coupling that is easy to install (CN216618315U).

[0020] When the coupling is broken and damaged and needs to be replaced, the worker turns off the electromagnet 105 through the electromagnetic switch 106, so that the electromagnet 105 loses its suction force. At this time, the worker uses his hand to pull the second half coupling sleeve 102 away from the connecting sleeve 104, so that the insertion rod 103 is pulled out of the connecting sleeve 104, thereby separating the second half coupling sleeve 102 and the first half coupling sleeve 101. At this time, the broken parts (the second half coupling sleeve 102 or the first half coupling sleeve 101) are replaced, and finally the intact second half coupling sleeve 102 and the first half coupling sleeve 101 are connected, so that the insertion rod 103 is inserted into the connecting sleeve 104, and the electromagnet 105 is started again by the electromagnetic switch 106, so that the electromagnet 105 adsorbs and fixes the insertion rod 103 in the connecting sleeve 104, so that the second half coupling sleeve 102 and the first half coupling sleeve 101 are connected and assembled into a new coupling.

[0021] The second embodiment of the present application is:

[0022] Based on the first embodiment, please refer to Figure 2 , Figure 2 It is a schematic diagram of the utility model. The coupling for the tap switch in this embodiment also includes a sealing clamp ring. The sealing clamp ring includes a fixed ring 201 and a sliding ring. The sliding ring includes a sliding ring 202 and an elastic barb 203. The sliding ring 202 has a groove 204.

[0023] According to this specific embodiment, the sealing clamp is arranged on the outside of the first half coupling sleeve 101 and the second half coupling sleeve 102. The sealing clamp is used to shield the connection between the first half coupling sleeve 101 and the second half coupling sleeve 102 to prevent dust and oil from easily penetrating into the gap at the connection along the rotating shaft when the coupling is used, thereby affecting the smoothness of the coupling.

[0024] Among them, the fixed ring 201 is fixedly connected to the first half coupling sleeve 101 and is located on the outside of the first half coupling sleeve 101, the sliding ring is slidably connected to the second half coupling sleeve 102, and is clamped with the fixed ring 201, and is located on the outside of the second half coupling sleeve 102. After the first half coupling sleeve 101 and the second half coupling sleeve 102 are connected, the worker pushes the sliding ring with his hand to clamp the sliding ring and the fixed ring 201, thereby covering the connection between the half coupling sleeve and the second half coupling sleeve 102, preventing dust and oil from easily penetrating into the gap at the connection along the rotating shaft when the coupling is used, thereby affecting the smoothness of the coupling.

[0025] Secondly, the slip ring 202 is slidably connected to the second half coupling sleeve 102 and is located on the outside of the second half coupling sleeve 102. The elastic barb 203 is fixedly connected to the slip ring 202 and is located on one side of the slip ring 202. The groove 204 is located on the outside of the slip ring 202. The slip ring 202 slides toward the fixed ring 201, so that the elastic barb 203 enters the fixed ring 201 and hooks its slot, thereby realizing the clamping connection between the slip ring 202 and the fixed ring 201. The setting of the groove 204 makes it easy for workers to pull the slip ring 202 and separate the slip ring 202 and the fixed ring 201.

[0026] When the fixed clamping ring is in use, the worker pushes the slip ring 202 with his hands, and the slip ring 202 slides toward the fixed ring 201, so that the elastic barb 203 enters the fixed ring 201 and hooks its groove, so that the slip ring 202 and the fixed ring 201 are clamped, thereby covering the connection between the half coupling sleeve and the second half coupling sleeve 102, preventing dust and oil from easily penetrating into the gap at the connection along the rotating shaft when the coupling is in use, thereby affecting the smoothness of the coupling.

[0027] The above disclosure is only a preferred embodiment of a coupling for a tap changer of the present application, and cannot be used to limit the scope of rights of the present application. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A coupling for a tap changer, characterized in that: It includes a first half coupling sleeve, a second half coupling sleeve, an insert rod, a connecting sleeve and an electromagnetic group; The first half coupling sleeve is arranged on one side of the second half coupling sleeve, the connecting sleeve is fixedly connected to the first half coupling sleeve and is located outside the first half coupling sleeve, the insert rod is fixedly connected to the second half coupling sleeve and is clamped with the connecting sleeve and is located outside the second half coupling sleeve, and the electromagnetic group is arranged on one side of the first half coupling sleeve.

2. A coupling for a tap changer according to claim 1, characterized in that: The electromagnetic group includes an electromagnet and an electromagnetic switch. The electromagnet is fixedly connected to the connecting sleeve and is located inside the connecting sleeve. The electromagnetic switch is arranged outside the first half coupling sleeve and is electrically connected to the electromagnet.

3. A coupling for a tap changer according to claim 2, characterized in that: The coupling for the tap switch further comprises a sealing clamp ring, which is arranged on the outside of the first half coupling sleeve and the second half coupling sleeve.

4. A coupling for a tap changer according to claim 3, characterized in that: The sealing clamp ring includes a fixed ring and a sliding ring. The fixed ring is fixedly connected to the first half coupling sleeve and is located outside the first half coupling sleeve. The sliding ring is slidably connected to the second half coupling sleeve and is clamped with the fixed ring and is located outside the second half coupling sleeve.

5. A coupling for a tap changer according to claim 4, characterized in that: The sliding ring includes a sliding ring and an elastic barb. The sliding ring is slidingly connected to the second half coupling sleeve and is located outside the second half coupling sleeve. The elastic barb is fixedly connected to the sliding ring and is located on one side of the sliding ring. The sliding ring has a groove, and the groove is located outside the sliding ring.

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