Vacuum circuit breaker contact grinding device

Abstract

The utility model discloses a vacuum circuit breaker contact polishing device, which belongs to the technical field of circuit breaker contacts, and comprises a polishing unit, a positioning unit and an adjusting unit, the adjusting unit comprises a cross rod, an adjusting valve and a stand column, the cross rod is vertically arranged on a bottom plate in a T shape, and the adjusting valve is arranged on the cross rod. The adjusting valve is arranged on an extending rod at the extending position of the transverse rod and the driving mechanism, the object bearing block is connected with the bottom plate through the stand column, a movable rod is installed at an opening in one side of the transverse rod, and the angle of the movable rod on the transverse rod is adjusted through an arc-shaped valve. According to the utility model, a plurality of contacts are placed and fixed through the positioning unit, then the contacts are polished through abrasive paper in the polishing unit, and the heights and angles of all parts are further adjusted to be different through an adjusting assembly in the adjusting unit, so that the angles at which the abrasive paper is located and the contacts are polished are adjusted; and the grinding operation can be conveniently carried out on the contact.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker contacts, in particular to a vacuum circuit breaker contact grinding device. Background Art

[0002] The contact is one of the key components of the switch electrical appliance. According to the structure and working characteristics, it can be divided into three categories: breakable contacts, sliding contacts and fixed contacts. The contact head is the key part of the circuit breaker contact. It is mainly composed of contact electrodes, contact surfaces, conductive plates, etc. The contact electrodes are generally made of high-quality steel and the surface is plated with a silver layer to improve conductivity.

[0003] Among them, the vacuum circuit breaker contacts need to be polished before and after use in order to improve performance or reduce the impact on electrical conduction and other effects.

[0004] However, conventional structures mostly use handheld methods to grind contacts, which is convenient and effective for grinding contacts.

[0005] Based on this, it is necessary to propose a device that can achieve a better polishing effect on the contact. Utility Model Content

[0006] The purpose of the utility model is to provide a vacuum circuit breaker contact grinding device to solve the above technical problems at least to a certain extent.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a bottom plate, the bottom plate is used to carry various components;

[0008] A grinding unit, the grinding unit comprising a transmission wheel, sandpaper, and a driving mechanism, the outer wall of the transmission wheel is connected to the sandpaper, and the driving mechanism is in transmission connection with the transmission wheel;

[0009] A positioning unit, the positioning unit comprising a support block, a positioning groove, and a positioning hole, the support block is a rectangular recessed arrangement installed on the side of the sandpaper, the positioning groove is a cylindrical arrangement opened in the recess of the support block, and the positioning hole and the positioning groove are longitudinally arranged to pass through the support block;

[0010] The adjusting unit includes a cross bar, a regulating valve and a column. The cross bar is vertically installed in a T-shape on the base plate. The regulating valve is arranged on the extending rod at the extension of the cross bar and the driving mechanism. The supporting block is connected to the base plate through the column. A movable rod is installed at the opening on one side of the cross bar. The angle of the movable rod on the cross bar is adjusted by an arc valve.

[0011] Preferably, the sandpaper can be directly sleeved on the transmission wheel after being cut.

[0012] Preferably, the driving mechanism is a power output end that drives the transmission wheel to rotate.

[0013] Preferably, the recess of the receiving block is arranged to facilitate placing the contact into and taking it out of the positioning groove, and the receiving block does not contact the sandpaper.

[0014] Preferably, the positioning groove is a special positioning arrangement for contacts, and the size of the receiving block is available in multiple categories for selection.

[0015] Preferably, the positioning hole is opened at the cylindrical forming position of the positioning groove, and a bolt is arranged in the positioning hole to enter the receiving block and contact the contact.

[0016] Preferably, the cross bar and the extending rod on the driving mechanism are sleeved, and the block on the extending rod and the buckle on the cross bar form the regulating valve.

[0017] Preferably, the column is vertically disposed on the base plate, and the column is arranged as an adjustable telescopic rod.

[0018] Preferably, when the arc path of the arc valve is pulled toward the cross bar, the sandpaper between the transmission wheel at the upper end and the transmission wheel at the lower end of the movable rod is arranged at an angle.

[0019] Preferably, the contact must be in contact with the sandpaper when in the positioning groove.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] When the utility model is used, a plurality of contacts are placed and fixed by a positioning unit, and then the contacts are polished by sandpaper in the polishing unit, and further the height and angle of each part are adjusted by an adjustment component in the adjustment unit to adjust the angle at which the sandpaper is polished with the contacts, so that the contacts can be polished conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0023] Figure 1 It is a schematic diagram of one side of the overall structure of this embodiment;

[0024] Figure 2 It is a schematic diagram of the other side of the overall structure of this embodiment.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 100, bottom plate;

[0027] 200, transmission wheel; 210, sandpaper; 220, driving mechanism;

[0028] 300, bearing block; 310, positioning groove; 311, positioning hole;

[0029] 400, cross bar; 410, regulating valve; 420, extension rod; 430, movable rod; 440, column; 450, arc valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-2 The utility model provides a technical solution: a vacuum circuit breaker contact grinding device, including a base plate 100, the base plate 100 is a support mechanism for carrying various components; the base plate 100 is a support mechanism for placing the containing part so that the various components thereon form an integrated and stable operation.

[0032] The grinding unit includes a transmission wheel 200, sandpaper 210, and a driving mechanism 220. The outer wall of the transmission wheel 200 is connected to the sandpaper 210, and the driving mechanism 220 is transmission-connected to the transmission wheel 200; the driving mechanism 220 is a power output end that drives the transmission wheel 200 to rotate, and the sandpaper 210 can be directly sleeved on the transmission wheel 200 after cutting.

[0033] The driving mechanism 220 can drive the transmission wheel 200 to transmit, and further drive the sandpaper 210 sleeved on the outside thereof to rotate continuously, and play a grinding role when it contacts with the contact.

[0034] The positioning unit includes a supporting block 300, a positioning groove 310, and a positioning hole 311. The supporting block 300 is a rectangular recessed setting installed on the side of the sandpaper 210. The positioning groove 310 is a cylindrical setting opened in the recess of the supporting block 300. The positioning hole 311 and the positioning groove 310 are longitudinally arranged to pass through the supporting block 300. The recessed setting of the supporting block 300 facilitates the placement and removal of the contact into and out of the positioning groove 310. The supporting block 300 does not contact the sandpaper 210. The positioning groove 310 is a special positioning setting for the contact. There are multiple sizes of the supporting block 300 to choose from. The positioning hole 311 is opened at the cylindrical molding position of the positioning groove 310. A bolt is arranged in the positioning hole 311 to enter the supporting block 300 and contact the contact.

[0035] The contact can be placed in the positioning groove 310. When the contact is stably placed, the bolt is passed through the supporting block 300 to contact the contact in the positioning groove 310, so as to further maintain the stable installation of the contact and enable better force to be generated by the sandpaper 210 to be polished. When the contact needs to be replaced, it is only necessary to unscrew the bolt until it is no longer in contact with the contact.

[0036] The regulating unit includes a crossbar 400, a regulating valve 410, and a column 440. The crossbar 400 is vertically installed on the bottom plate 100 in a T-shape. The regulating valve 410 is arranged on the extension rod 420 at the extension of the crossbar 400 and the driving mechanism 220. The support block 300 is connected to the bottom plate 100 through the column 440. A movable rod 430 is installed at the opening on one side of the crossbar 400. The angle of the movable rod 430 on the crossbar 400 is adjusted by the arc valve 450. The crossbar 400 and the extension rod 420 on the driving mechanism 220 are sleeved, and the block on the extension rod 420 and the buckle on the crossbar 400 form the regulating valve 410; when the arc of the arc valve 450 is pulled toward the crossbar 400, the sandpaper 210 between the transmission wheel 200 at the upper end of the movable rod 430 and the transmission wheel 200 at the lower end is inclined.

[0037] By setting the regulating valve 410, the distance between the sandpaper 210 and the supporting block 300 between the upper and lower transmission wheels 200 at the cross bar 400 can be adjusted. The distance between the sandpaper 210 and the contact can be adjusted according to contacts of different sizes to achieve a better grinding effect. When the arc valve 450 drives the sandpaper 210 between the transmission wheel 200 at the upper end and the transmission wheel 200 at the lower end of the movable rod 430 to be inclined, it can maintain the bottom of the contact for grinding, and the contact can also be grinded in all directions according to the angle adjustment controlled by the arc valve 450.

[0038] Preferably, the column 440 is vertically disposed on the base plate 100 , and the column 440 is an adjustable telescopic rod.

[0039] The support block 300 and the contacts therein can be adjusted in height as required through the column 440, so that they can be adjusted as required during use to achieve a better grinding effect.

[0040] Preferably, the contact must be in contact with the sandpaper 210 when in the positioning groove 310 .

[0041] Keeping the contact tip in contact with the sandpaper 210 enables sufficient sanding.

[0042] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum circuit breaker contact grinding device, characterized in that: include: A bottom plate (100), the bottom plate (100) being a mechanism for carrying various components; A polishing unit, the polishing unit comprising a transmission wheel (200), sandpaper (210), and a driving mechanism (220), wherein an outer wall of the transmission wheel (200) is connected to the sandpaper (210), and the driving mechanism (220) is drivingly connected to the transmission wheel (200); a positioning unit, the positioning unit comprising a support block (300), a positioning groove (310), and a positioning hole (311); the support block (300) is a rectangular recessed arrangement installed on the side of the sandpaper (210); the positioning groove (310) is a cylindrical arrangement opened in the recess of the support block (300); the positioning hole (311) and the positioning groove (310) are arranged longitudinally and pass through the support block (300); An adjustment unit, the adjustment unit comprising a cross bar (400), a regulating valve (410), and a column (440); the cross bar (400) is vertically mounted on the base plate (100) in a T-shape; the regulating valve (410) is arranged on a protruding rod (420) at an extension of the cross bar (400) and the driving mechanism (220); the support block (300) is connected to the base plate (100) via the column (440); a movable rod (430) is installed at an opening on one side of the cross bar (400); and the angle of the movable rod (430) on the cross bar (400) is adjusted via an arc valve (450).

2. A vacuum circuit breaker contact grinding device according to claim 1, characterized in that: The sandpaper (210) can be directly sleeved onto the transmission wheel (200) after being cut.

3. A vacuum circuit breaker contact grinding device according to claim 1, characterized in that: The driving mechanism (220) is a power output end that drives the transmission wheel (200) to rotate.

4. A vacuum circuit breaker contact grinding device according to claim 1, characterized in that: The notch of the support block (300) is arranged to facilitate placing the contact into and taking it out of the positioning groove (310), and the support block (300) does not contact the sandpaper (210).

5. A vacuum circuit breaker contact grinding device according to claim 4, characterized in that: The positioning groove (310) is a special positioning arrangement for contacts, and the size of the receiving block (300) is selectable in a variety of sizes.

6. A vacuum circuit breaker contact grinding device according to claim 1, characterized in that: The positioning hole (311) is opened at a cylindrical forming position of the positioning groove (310), and a bolt is arranged in the positioning hole (311) to enter the receiving block (300) and contact the contact.

7. A vacuum circuit breaker contact grinding device according to claim 1, characterized in that: The cross bar (400) and the extension rod (420) on the driving mechanism (220) are sleeved, and the clamping block on the extension rod (420) and the buckle on the cross bar (400) form the regulating valve (410).

8. A vacuum circuit breaker contact grinding device according to claim 1, characterized in that: The upright post (440) is vertically arranged on the bottom plate (100), and the upright post (440) is arranged as an adjustable telescopic rod.

9. A vacuum circuit breaker contact grinding device according to claim 7, characterized in that: When the arc path of the arc valve (450) is pulled in the direction of the crossbar (400), the sandpaper (210) between the transmission wheel (200) at the upper end and the transmission wheel (200) at the lower end of the movable rod (430) is arranged in an inclined manner.

10. A vacuum circuit breaker contact grinding device according to claim 5, characterized in that: When the contact is in the positioning groove (310), it is bound to be in contact with the sandpaper (210).

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