Carbon brush assembly capable of being rapidly replaced

Abstract

A carbon brush assembly capable of being rapidly replaced comprises a base part, a fixing part and a clamping part. The clamping part is arranged on the fixing part, and the fixing part is arranged on the base part; the base part comprises a bottom plate and a pressing mechanism; a square hole is formed in the upper end face of the bottom plate, and the depth of the square hole of the bottom plate is smaller than the thickness of the bottom plate. The number of the pressing mechanisms is two, and the pressing mechanisms are symmetrically arranged on the two sides of the bottom plate. According to the utility model, the replacement efficiency of the carbon brush and the corresponding assembly thereof is improved.

Description

Technical Field

[0001] The utility model relates to a carbon brush assembly, in particular to an assembly capable of quickly replacing carbon brushes, and belongs to the technical field of motor carbon brush equipment. Background Art

[0002] A carbon brush is a sliding contact part, which is a current signal transmission component between a fixed component and a rotating component. Carbon brushes are widely used in electrical equipment. Carbon brushes are mainly composed of graphite. When in use, the carbon brush needs to be fixed in position with a carbon brush holder to facilitate its use. At present, most carbon brushes are set on a fixed seat, and the fixed seat is fixed to the carbon brush holder by bolts or welding. When the fixed seat is damaged, the fixed seat needs to be removed and a new fixed seat needs to be installed on the carbon brush holder. This process is time-consuming, labor-intensive and inefficient. Moreover, the carbon brush needs to be replaced after being used for a period of time due to wear. The original structure makes the replacement steps of the carbon brush more cumbersome, which is not convenient for the staff to replace the carbon brush, resulting in low replacement efficiency of the carbon brush, affecting the production progress. Therefore, a carbon brush assembly that can quickly replace the carbon brush and the carbon brush holder is needed to improve the efficiency of carbon brush replacement. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a quickly replaceable carbon brush assembly, which can not only reduce the labor intensity of the staff, but also improve the replacement efficiency of the carbon brush and its corresponding fixing seat.

[0004] The problem described in the utility model is solved by the following technical solutions:

[0005] A quickly replaceable carbon brush assembly comprises a base portion, a fixing portion and a clamping portion; the clamping portion is arranged on the fixing portion, and the fixing portion is arranged on the base portion; the base portion comprises a bottom plate and a pressing mechanism; a square hole is arranged on the upper end surface of the bottom plate, and the depth of the square hole of the bottom plate is less than the thickness of the bottom plate; the pressing mechanisms are two in number, and are symmetrically arranged on both sides of the bottom plate.

[0006] The above-mentioned quickly replaceable carbon brush assembly, the pressing mechanism includes a guide rod, a pressure plate, a first spring and a top block; the number of the guide rods is two, and they are symmetrically arranged at the two ends of the side wall of the bottom plate; both ends of the pressure plate are provided with guide holes, and each guide hole is penetrated by a guide rod; the first spring is arranged between the pressure plate and the bottom plate; both ends of the side wall of the bottom plate are provided with square through holes, and the square through holes connect the outer wall of the bottom plate with the inner wall of the square hole; top blocks are arranged at both ends of the end surface of the pressure plate close to the bottom plate, and the top blocks penetrate the square through holes on the side wall of the bottom plate, and the outer wall of the top block and the inner wall of the square through holes on the side wall of the bottom plate coincide with each other.

[0007] The above-mentioned quickly replaceable carbon brush assembly, the fixed part includes a fixed plate, a second spring, a slider and a triangular block; the size of the fixed plate is consistent with the size of the square hole on the upper end face of the base plate, and the fixed plate is inserted in the square hole of the base plate; holes are provided at both ends of the side wall of the fixed plate, and the spacing between the two holes is equal to the spacing between the two square through-holes on the side wall of the base plate; the second spring is provided in the hole on the side wall of the fixed plate, the slider is inserted in the hole on the side wall of the fixed plate, and the slider is connected to the second spring; the right-angled surface of the triangular block is connected to the end face of the slider away from the second spring, and the inclined surface of the triangular block faces downward; triangular blocks are penetrated in each square through-hole of the base plate, and the triangular blocks are in contact with the top block.

[0008] The above-mentioned quickly replaceable carbon brush assembly, the clamping part includes a square tube, a back plate and a limit plate; the square tube is composed of an upper plate, a lower plate and two side plates; the lower plate is arranged on the upper end face of the fixed plate; a limit strip is arranged at the end of the side plate, the two ends of the back plate end face are respectively in contact with different side plate ends, and the back plate is located between the two limit strips; a rotating shaft is arranged on the limit strip, and a limit plate is arranged on the rotating shaft, and the limit plate contacts and presses on the end face of the back plate away from the side plate; a circular hole is arranged in the center of the back plate, the carbon brush is arranged in the square tube, and the spring of the carbon brush contacts and presses on the end face of the back plate close to the side plate.

[0009] The utility model replaces the original carbon brush holder with a base part; through the cooperation of the fixing part and the base part, the fixing part can be quickly disassembled from the base part, and then the carbon brush or the fixing part can be quickly replaced, and there is no need to remove the bolts or dismantle the welding part, which greatly improves the replacement efficiency of the carbon brush and its corresponding components. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the elevation angle stereoscopic structure of the combination of the fixing part and the clamping part of the utility model;

[0012] Figure 3 It is a schematic diagram of the internal structure of the clamping part of the utility model.

[0013] The list of numbers in the figure is: 1. bottom plate, 2. guide rod, 3. pressure plate, 4. first spring, 5. top block, 6. fixing plate, 7. triangular block, 8. square tube, 9. back plate, 10. limit plate. DETAILED DESCRIPTION

[0014] See also Figure 1 , 2 and Figure 3The utility model includes a base part, a fixing part and a clamping part; the clamping part is arranged on the fixing part, and the fixing part is arranged on the base part; the base part replaces the position of the original carbon brush holder; the base part includes a base plate 1 and a pressing mechanism; the position restriction of the fixing part can be released by the pressing mechanism; a square hole is arranged on the upper end surface of the base plate 1, and the depth of the square hole of the base plate 1 is less than the thickness of the base plate 1; the number of the pressing mechanisms is two, and they are symmetrically arranged on both sides of the base plate 1.

[0015] The pressing mechanism includes a guide rod 2, a pressure plate 3, a first spring 4 and a top block 5; there are two guide rods 2, which are symmetrically arranged at the two ends of the side wall of the bottom plate 1; guide holes are arranged at both ends of the pressure plate 3, and a guide rod 2 is inserted into each guide hole; the guide rod 2 provides a guide for the displacement of the pressure plate 3 close to and away from the bottom plate 1; the first spring 4 is arranged between the pressure plate 3 and the bottom plate 1; the first spring 4 provides a force for the pressure plate 3 to move away from the bottom plate 1; the side wall of the bottom plate 1 Square perforations are provided at both ends, and the square perforations connect the outer wall of the bottom plate 1 and the inner wall of the square hole; top blocks 5 are provided at both ends of the end surface of the pressing plate 3 close to the bottom plate 1, and the top blocks 5 penetrate the square perforations on the side wall of the bottom plate 1, and the outer wall of the top block 5 and the inner wall of the square perforations on the side wall of the bottom plate 1 coincide with each other; when the pressing plate 3 is pressed, the pressing plate 3 will be pushed close to the bottom plate 1, so that the top block 5 pushes the triangular block 7 in the square perforations on the side wall of the bottom plate 1 out of the square perforations, and finally the fixing plate 6 is separated from the bottom plate 1.

[0016] The fixing part includes a fixing plate 6, a second spring, a slider and a triangular block 7; the size of the fixing plate 6 is consistent with the size of the square hole on the upper end face of the bottom plate 1, which ensures that the fixing plate 6 can fill the square hole of the bottom plate 1 perfectly; the fixing plate 6 is inserted into the square hole of the bottom plate 1; holes are provided at both ends of the side wall of the fixing plate 6, and the spacing between the two holes is equal to the spacing between the two square perforations on the side wall of the bottom plate 1; a second spring is provided in the hole on the side wall of the fixing plate 6, and the slider is inserted in the hole on the side wall of the fixing plate 6, and the slider is connected to the second spring; the second spring provides an outward force for the slider, thereby driving the triangular block 7 to move outward, ensuring that the triangular block 7 is reliably clamped in the square perforation of the bottom plate 1; the straight The angle surface is connected to the end surface of the slider away from the second spring, and the inclined surface of the triangular block 7 faces downward. The inclined surface of the triangular block 7 faces downward, which ensures that when the fixed plate 6 enters the square hole of the bottom plate 1, the inclined surface of the triangular block 7 is squeezed by the upper end surface of the bottom plate 1, and then retracted into the hole of the fixed plate 6 until the triangular block 7 penetrates the square hole of the bottom plate 1. At this time, the triangular block 7 enters the square hole of the bottom plate 1 under the action of the second spring to limit the position; each square hole of the bottom plate 1 is penetrated by a triangular block 7, and the triangular block 7 is in contact with the top block 5; the top block 5 can be pushed out of the triangular block 7 from the square hole of the bottom plate, thereby canceling the relative fixed state between the fixed plate and the bottom plate, thereby removing the fixed plate from the bottom plate.

[0017] The clamping part includes a square tube 8, a back plate 9 and a limit plate 10; the square tube 8 is composed of an upper plate, a lower plate and two side plates; the lower plate is arranged on the upper end surface of the fixed plate 6; a limit strip is arranged at the end of the side plate, and the two ends of the end surface of the back plate 9 are respectively in contact with different end surfaces of the side plate, and the back plate 9 is located between the two limit strips; the back plate 9 is clamped by the combination of the side plate and the limit strip; a rotating shaft is arranged on the limit strip, and a limit plate 10 is arranged on the rotating shaft, and the limit plate 10 contacts and presses on the end surface of the back plate 9 away from the side plate; the position of the back plate 9 can be limited by rotating the rotating shaft to press the two limit plates 10 on the back plate 9; a circular hole is arranged in the center of the back plate 9, and the circular hole is used for the wire connecting the carbon brush to pass through; the carbon brush is arranged in the square tube 8, and the spring of the carbon brush contacts and presses on the end surface of the back plate 9 close to the side plate.

[0018] Actual use process: When the carbon brush or the fixed part needs to be replaced, it is only necessary to press down the pressure plates 3 on both sides so that the top block 5 pushes the triangular clamping block 7 on the fixing plate 6 out of the square through-hole of the bottom plate 1, and then pull out the fixing part and the clamping part, and finally install the new combination of the fixing part and the clamping part on the bottom plate 1; during installation, it is only necessary to press the fixing plate 6 into the square hole of the bottom plate 1, and the triangular clamping block 7 is received in the hole of the fixing plate 6 when passing through the square hole of the bottom plate 1, until the triangular clamping block 7 is aligned with the square through-hole of the bottom plate 1, and then The rear triangular block 7 enters the square through-hole of the base plate 1 under the action of the second spring, thereby relatively fixing the positions of the fixing plate 6 and the base plate 1; for the combination of the fixed part and the clamping part that is pulled out, if the fixed part is damaged, it will be eliminated; if only a new carbon brush needs to be replaced, the limit plate 10 is rotated and the back plate 9 is removed, the old carbon brush is taken out, and then the new carbon brush is installed, and then the back plate 9 is installed back, and the limit plate 10 is reset. At this point, the combination of the fixed part and the clamping part can wait for the next replacement of the carbon brush for replacement and use.

Claims

1. A quickly replaceable carbon brush assembly, characterized in that: The invention comprises a base portion, a fixing portion and a clamping portion; the clamping portion is arranged on the fixing portion, and the fixing portion is arranged on the base portion; the base portion comprises a bottom plate (1) and a pressing mechanism; the upper end surface of the bottom plate (1) is provided with a square hole, and the depth of the square hole of the bottom plate (1) is less than the thickness of the bottom plate (1); the number of the pressing mechanisms is two, and they are symmetrically arranged on both sides of the bottom plate (1).

2. The quickly replaceable carbon brush assembly according to claim 1, characterized in that: The pressing mechanism comprises a guide rod (2), a pressing plate (3), a first spring (4) and a top block (5); the number of the guide rods (2) is two, and they are symmetrically arranged at the two ends of the side wall of the bottom plate (1); the two ends of the pressing plate (3) are provided with guide holes, and each guide hole is penetrated by a guide rod (2); the first spring (4) is arranged between the pressing plate (3) and the bottom plate (1); the two ends of the side wall of the bottom plate (1) are provided with square through holes, and the square through holes connect the outer wall of the bottom plate (1) and the inner wall of the square hole; the two ends of the end surface of the pressing plate (3) close to the bottom plate (1) are provided with top blocks (5), and the top blocks (5) penetrate the square through holes on the side wall of the bottom plate (1), and the outer wall of the top block (5) and the inner wall of the square through holes on the side wall of the bottom plate (1) are mutually matched.

3. The quickly replaceable carbon brush assembly according to claim 2, characterized in that: The fixing part comprises a fixing plate (6), a second spring, a slider and a triangular clamping block (7); the size of the fixing plate (6) is consistent with the size of the square hole on the upper end surface of the bottom plate (1), and the fixing plate (6) is inserted into the square hole of the bottom plate (1); holes are provided at both ends of the side wall of the fixing plate (6), and the spacing between the two holes is equal to the spacing between two square through-holes on the side wall of the bottom plate (1); the second spring is provided in the hole on the side wall of the fixing plate (6), the slider is inserted into the hole on the side wall of the fixing plate (6), and the slider is connected to the second spring; the right-angled surface of the triangular clamping block (7) is connected to the end surface of the slider away from the second spring, and the inclined surface of the triangular clamping block (7) faces downward; the triangular clamping block (7) is inserted into each square through-hole of the bottom plate (1), and the triangular clamping block (7) is in contact with the top block (5).

4. The quickly replaceable carbon brush assembly according to claim 3, characterized in that: The clamping part comprises a square tube (8), a back plate (9) and a limit plate (10); the square tube (8) is composed of an upper plate, a lower plate and two side plates; the lower plate is arranged on the upper end surface of the fixed plate (6); a limit strip is arranged at the end of the side plate, and the two ends of the end surface of the back plate (9) are respectively in contact with different end surfaces of the side plate, and the back plate (9) is located between the two limit strips; a rotating shaft is arranged on the limit strip, and a limit plate (10) is arranged on the rotating shaft, and the limit plate (10) contacts and presses on the end surface of the back plate (9) away from the side plate; a circular hole is arranged at the center of the back plate (9), and a carbon brush is arranged in the square tube (8), and a spring of the carbon brush contacts and presses on the end surface of the back plate (9) close to the side plate.

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