Deburring device for contact piece of static contact
By designing a deburring device with a motor, the friction between sand and gravel and contact sheets is used to remove burrs and separate burrs from sand and gravel, the problem of low efficiency of roller grinders is solved, and the efficiency of deburring and contact sheets is improved. production efficiency.
Patent Information
- Application Number
- CN202421095252.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-16
AI Technical Summary
After deburring, the drum grinder needs to filter out the sand and gravel before it can be used again, resulting in a reduced efficiency of use and thus reducing the efficiency of deburring of the contact sheet.
A device including a support frame, a filter cartridge and an outer cylinder is designed. The filter cartridge is driven to rotate by a motor, and the burrs are removed by friction between the sand and gravel and the contact sheet, and the burrs and gravels are realized by the design of the filter cartridge and the outer cylinder. to avoid repeated filtration.
It improves the efficiency of the use and cleaning efficiency of the deburring device, simplifies the production process of contact sheets, and reduces the motor running load and noise.
Smart Images
Figure CN222308458U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stationary contact processing, in particular to a contact piece deburring device for a stationary contact. Background Art
[0002] The contact piece in the static contact is the core conductive contact component of the static contact. It is directly responsible for the current conduction path with the moving contact or circuit to ensure the normal operation of the electrical equipment. The contact piece is often made of highly conductive metals, such as copper alloy, brass, copper, silver, silver plating, and silver alloy, to improve conductivity, reduce contact resistance, and be heat-resistant and corrosion-resistant. The contact piece is mostly in the shape of a sheet, and its processing process is mostly made into a basic shape by die-casting or stamping. However, there are burrs on the edges of the contact pieces processed in this way. If the burrs are not processed, the contact pieces may have poor contact due to the burrs. At the same time, the burrs may cause heat and corrosion when current passes through. Therefore, removing burrs can effectively improve the conductivity of the contact surface of the contact piece and reduce contact resistance. Deburring can also reduce failure points and extend the service life of the contact. The use of a drum grinder for deburring can achieve the advantages of fast deburring and large deburring volume. However, after deburring, the sand and gravel in the drum are mixed with burrs. The sand and gravel need to be taken out and the burrs need to be filtered out before being put back into the drum before it can be used again. This reduces the efficiency of the drum grinder. The reduced efficiency of the drum grinder will lead to a reduced efficiency in deburring the contact piece. Utility Model Content
[0003] The utility model aims to provide a contact piece deburring device for a stationary contact, so as to solve the problem of reducing the use efficiency of a drum polishing machine when sand and stone filter burrs.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a contact piece deburring device for a static contact, comprising a support frame, a filter cylinder and an outer cylinder transversely fixed on the support frame, the filter cylinder is rotatably connected in the outer cylinder, and the filter cylinder is coaxial with the central axis of the outer cylinder, the filter cylinder is used to allow burrs to pass through while retaining the contact piece and sand and gravel; an avoidance port is provided on the cylinder wall of the outer cylinder, and a cylinder cover is rotatably connected to the avoidance port; a taking port is provided on the filter cylinder, and a box cover for closing the taking port is rotatably connected to the taking port; a motor is fixedly connected to the outer cylinder, the output shaft of the motor passes through the outer cylinder and is fixedly connected to the filter cylinder, and the output shaft of the motor is coaxial with the central axis of the filter cylinder.
[0005] The working principle of the utility model is as follows: when in use, add a proper amount of quartz sand and gravel into the filter cylinder through the avoidance port and the material taking port, then put the contact piece that needs to be deburred into the filter cylinder, close the cylinder cover and the box cover, and then start the motor. Since the motor is fixedly connected to the outer cylinder, the output shaft of the motor passes through the outer cylinder and is fixedly connected to the filter cylinder, so when the motor is running, the filter cylinder will be driven to rotate through the output shaft, and the rotation of the filter cylinder drives the sand and gravel in the cylinder and the contact piece to roll. When the sand and gravel and the contact piece roll, the burrs and oxide layers on the surface of the contact piece are removed through the continuous rolling and friction between the sand and gravel and the contact piece. When the burrs fall off the contact piece, the burrs gradually sink to the bottom of the filter cylinder during the continuous rolling of the filter cylinder, and then fall into the outer cylinder through the filter holes on the filter cylinder. After the burr removal is completed, stop the motor, then open the box cover and the cylinder cover, screen the contact piece from the sand and gravel, and then carry out the second round of contact piece burr cleaning.
[0006] Beneficial effects of the utility model: This solution drives the sand and gravel and the contact sheet to deburr by rolling the filter cylinder. While deburring, the burrs dropped from the contact sheet are filtered into the outer cylinder by the filter cylinder. In this way, the burrs and sand and gravel are separated during the deburring process. There is no need to filter the sand and gravel again after the burr cleaning is completed. It is only necessary to take out the deburred contact sheet and then put in a new contact sheet to be deburred. The use efficiency of the deburring device is greatly improved, and the burr cleaning efficiency is also improved simultaneously, which speeds up the production efficiency of the contact sheet.
[0007] Furthermore, a constricted slag discharge hole is provided at the bottom of the outer cylinder, and a slag discharge pipe is fixedly connected to the slag discharge hole. The purpose is that by providing the constricted slag discharge hole at the bottom of the outer cylinder, after the burrs fall into the outer cylinder, they slide along the inclined surface to the slag discharge hole under the action of gravity, and the burrs are discharged from the outer cylinder through the slag discharge hole and the slag discharge pipe, thereby preventing the burrs from accumulating in the outer cylinder.
[0008] Furthermore, the inner wall of the filter cartridge is detachably connected with two quarter-circular arc-shaped filter plates, which are closely attached to the inner wall of the filter cartridge and are used to filter the contact sheet to separate the sand and gravel from the contact sheet. The two filter plates are mutually engaged through an "n"-shaped buckle. The purpose is to place the detachably connected filter plate at the bottom of the filter cartridge when it is necessary to remove the contact sheet after the burrs are removed, and then remove the filter plate so that the sand and gravel leak out of the filter holes of the filter plate, leaving the contact sheet on the filter plate, and then remove the filter plate from the filter cartridge to remove the contact sheet after the burrs are removed. At the same time, setting two filter plates can reduce the size of the filter plate and facilitate the removal of the filter plate.
[0009] Furthermore, a rotating shaft fixedly connected to the filter cartridge is provided at both ends of the central axis of the filter cartridge, the rotating shaft is rotatably connected to the outer cartridge, and a ball bearing is installed at the rotation connection between the rotating shaft and the outer cartridge. The purpose is to reduce the friction between the rotating shaft and the outer cartridge through the ball bearing, thereby reducing the load when the motor is running and extending the service life of the motor; at the same time, the friction between the rotating shaft and the outer cartridge is reduced through the ball bearing, thereby reducing the noise generated when the filter cartridge rotates. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of a contact piece deburring device of a stationary contact of the utility model;
[0011] Figure 2 for Figure 1 Schematic diagram of the filter plate structure. DETAILED DESCRIPTION
[0012] The following is further described in detail through specific implementation methods:
[0013] The reference numerals in the drawings of the specification include: outer cylinder 1, filter cylinder 2, support frame 3, ball bearing 4, rotating shaft 5, filter plate 6, slag discharge pipe 7, motor 8, buckle 9.
[0014] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2 As shown:
[0015] A contact piece deburring device for a static contact, comprising a support frame 3, a filter cartridge 2 and an outer cylinder 1 transversely fixed to the support frame 3, the bottom of the outer cylinder 1 being provided with a constricted slag discharge hole, in which a slag discharge pipe 7 is fixedly connected. The filter cartridge 2 is rotatably connected to the outer cylinder 1 via a rotating shaft 5 fixedly connected at both ends, a ball bearing 4 is installed at the rotating connection between the rotating shaft 5 and the outer cylinder 1, and the filter cartridge 2 is coaxial with the central axis of the outer cylinder 1, a plurality of first filter holes are evenly distributed on the body of the filter cartridge 2, the first filter holes are used for burrs to pass through while retaining the contact piece and sand and gravel, the inner wall of the filter cartridge 2 is detachably connected to two quarter-circular filter plates 6, the filter plates 6 are tightly attached to the inner wall of the filter cartridge 2, and a plurality of second filter holes are evenly distributed on the filter plates 6, the second filter holes are used for filtering the contact piece, so that The sand and gravel are separated from the contact plate, and the left and right ends of the filter plate 6 are fixedly connected with fan-shaped plates perpendicular to the filter plate 6, and the fan-shaped plates of the two filter plates 6 that are in contact with each other are clamped together by an "n"-shaped buckle 9; an avoidance port is provided on the wall of the outer cylinder 1, and a cylinder cover is rotatably connected to the avoidance port; a taking port is provided on the filter cylinder 2, and a box cover for closing the taking port is rotatably connected to the taking port; a motor 8 is fixedly connected to the outer cylinder 1, and the output shaft of the motor 8 passes through the outer cylinder 1 and is fixedly connected to the filter cylinder 2, and the output shaft of the motor 8 is coaxial with the central axis of the filter cylinder 2.
[0016] The specific implementation process is as follows:
[0017] When in use, add an appropriate amount of quartz sand and gravel into the filter cylinder 2 through the avoidance port and the material taking port, then put the contact piece that needs to be deburred into the filter cylinder 2, close the cylinder cover and the box cover, and then start the motor 8. Since the motor 8 is fixedly connected to the outer cylinder 1, the output shaft of the motor 8 passes through the outer cylinder 1 and is fixedly connected to the filter cylinder 2, so when the motor 8 is running, the filter cylinder 2 will be driven to rotate through the output shaft, and the rotation of the filter cylinder 2 drives the sand and gravel and the contact piece in the cylinder to roll. When the sand and gravel and the contact piece roll, the burrs and oxide layers on the surface of the contact piece are removed through the continuous rolling and friction between the sand and gravel and the contact piece. When the burrs fall from the contact piece, the burrs gradually sink to the bottom of the filter cylinder 2 during the continuous rolling of the filter cylinder 2, and then fall into the outer cylinder 1 through the filter holes on the filter cylinder 2. After the burrs fall into the outer cylinder 1, they slide along the inclined surface to the slag discharge hole under the action of gravity, and the burrs are discharged from the outer cylinder 1 through the slag discharge hole and the slag discharge pipe 7 to avoid the accumulation of burrs in the outer cylinder 1. After the burr removal is completed, stop the motor 8, then open the box cover and the cylinder cover, and when taking out the contact piece after the burr is removed, let the detachably connected filter plate 6 be located at the bottom of the filter cylinder 2, remove the buckle 9 between the two filter plates 6, and then remove the filter plate 6 and shake it to make the sand and gravel leak out from the filter holes of the filter plate 6, so that the contact piece remains on the filter plate 6, and then take the filter plate 6 out of the filter cylinder 2, and the contact piece after the burr is removed can be taken out, and the second round of contact piece burr cleaning work can be carried out.
Claims
1. A contact piece deburring device for a stationary contact, characterized in that: It includes a support frame, a filter cartridge and an outer cylinder transversely fixed on the support frame, the filter cartridge is rotatably connected in the outer cylinder, and the filter cartridge is coaxial with the central axis of the outer cylinder, and the filter cartridge is used for burrs to pass through while retaining contact sheets and sand and gravel; an avoidance port is provided on the cylinder wall of the outer cylinder, and a cylinder cover is rotatably connected to the avoidance port; a taking port is provided on the filter cartridge, and a box cover for closing the taking port is rotatably connected to the taking port; a motor is fixedly connected to the outer cylinder, and the output shaft of the motor passes through the outer cylinder and is fixedly connected to the filter cartridge, and the output shaft of the motor is coaxial with the central axis of the filter cartridge.
2. The contact piece deburring device of a stationary contact according to claim 1, characterized in that: The bottom of the outer cylinder is provided with a constricted slag discharge hole, and a slag discharge pipe is fixedly connected to the slag discharge hole.
3. The contact piece deburring device of a stationary contact according to claim 2, characterized in that: The inner wall of the filter cartridge is detachably connected to two quarter-circular arc filter plates, which are tightly attached to the inner wall of the filter cartridge and are used to filter the contact sheet to separate sand and gravel from the contact sheet. The two filter plates are mutually clamped by an "n"-shaped buckle.
4. The contact piece deburring device of a stationary contact according to claim 3, characterized in that: Both ends of the central axis of the filter cartridge are provided with rotating shafts fixedly connected to the filter cartridge, the rotating shaft is rotatably connected to the outer cartridge, and a ball bearing is installed at the rotating connection between the rotating shaft and the outer cartridge.