Withstand voltage detection equipment for commutator segment shaft

Abstract

A commutator segment shaft pressure resistance detection device comprises a rack, a supporting table and a detection table are arranged on the rack, and a transverse transmission unit which is driven by a power source and used for driving a commutator to move in the width direction of the supporting table is arranged on the supporting table. The detection table is provided with a detection unit for performing sheet shaft pressure resistance detection and a vertical transmission unit for conveying a commutator into the detection unit and moving along the height direction of the detection table, the detection unit comprises a pedestal, a driving part and a detection part, the pedestal is arranged on the detection table, the driving part is arranged on the pedestal, and the detection part is arranged on the driving part. And the detection part is wound on the commutator and is driven by the driving part to be tightened when the commutator is detected or loosened when the detection is completed. The commutator detection structure has the beneficial effects that the detection structure is arranged on the commutator in a winding manner, so that the detection structure not only can be contacted with each shaft of the commutator, but also can adapt to commutators with different sizes, thereby increasing the adaptability of the detection structure and reducing the use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of commutator detection, in particular to a commutator shaft withstand voltage detection device. Background Art

[0002] The commutator is a component on a DC permanent magnet series-excited motor that allows the motor to continue rotating. The commutator is composed of several contact plates arranged in a circle, which are connected to each contact on the motor rotor. The two electrodes connected on the outside are called brushes.

[0003] Publication No. CN110736907A discloses a commutator withstand voltage fully automatic detection device, including a sheet shaft withstand voltage detection mechanism and / or an inter-sheet withstand voltage detection mechanism..., a second drive module drives two measuring needles to contact two adjacent commutator contact sheets respectively, and the measuring needles drive the commutator to rotate circumferentially through a third drive module to perform inter-sheet withstand voltage detection on the commutator. This commutator withstand voltage detection device contacts each contact sheet of the commutator in a rotating manner through two measuring needles, thereby achieving the correspondence between the measuring needles and the commutator contact sheets, thereby ensuring the accuracy of the detection, but there is a defect, that is, the commutator has different sizes, but the setting position of the measuring needle of the reference document is fixed, resulting in the use of the measuring needle method to detect only a single size of commutator, if it is necessary to adapt to commutators of different sizes, it is necessary to replace the size of the detection head, which is not only more troublesome to switch, but also leads to high manufacturing costs. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a commutator shaft withstand voltage detection device to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve its technical problems: the commutator shaft pressure resistance detection equipment comprises a frame, a support platform and a detection platform are arranged on the frame, a horizontal transmission unit driven by a power source and used to drive the commutator to move along the width direction of the support platform is arranged on the support platform, a detection unit for shaft pressure resistance detection and a vertical transmission unit for conveying the commutator into the detection unit and moving along the height direction of the detection platform are arranged on the detection platform, the detection unit comprises a base, a driving part and a detection part, the base is arranged on the detection platform, the driving part is arranged on the base, the detection part is wound around the commutator and driven by the driving part so that it is tightened when the commutator is detected or loosened when the detection is completed.

[0006] To be further improved, the transverse transmission unit includes a moving plate, and pneumatic clamps arranged on the moving plate and equidistantly distributed along the width direction of the moving plate, a slide rail and slider structure connected to the moving plate, and a first cylinder for driving the moving plate to move are arranged on the support platform, and a connecting block connected to the moving plate is arranged on the piston rod of the first cylinder.

[0007] For further improvement, the detection part is arranged as an elastic strip-shaped member, the strip-shaped member is wound to form an insertion cavity for the commutator to be inserted into, and obtains two connection ends which are simultaneously connected to the driving part.

[0008] For further improvement, the driving part is configured as a second cylinder, a first mounting groove is provided at the output end of the second cylinder, swing arms symmetrically distributed on both sides of the piston rod are provided in the first mounting groove, a connecting protrusion is provided on the inner side surface of the swing arm, and an extension arm is provided on the outer side surface, and a second mounting groove is provided at the end of the piston rod of the second cylinder for the connecting protrusion to be placed therein and rotatably connected, and the two connecting protrusions located in the second mounting groove are stacked up and down, and the extension arm is connected to the connecting end of the strip-shaped component.

[0009] For further improvement, a first opening matching the pneumatic clamp is provided on the detection platform, and a second opening matching the first opening is provided on the base. The vertical transmission unit can pass through the first opening and the second opening at the same time, so as to receive the commutator delivered by the pneumatic clamp when located in the first opening, and insert the commutator into the insertion cavity of the detection part when located in the second opening.

[0010] Further improvement, the vertical transmission unit includes a bracket, a connecting plate, a bearing seat, a movable shaft, a support block, a cylinder frame, and a third cylinder. The bracket is arranged below the detection table, the connecting plate is arranged on the upper part of the bracket, the bearing seat is arranged on the connecting plate, the movable shaft moves in the bearing seat, the support block is arranged on the upper end of the movable shaft, the cylinder frame is arranged on the lower part of the bracket, and the third cylinder is arranged on the cylinder frame and is used to drive the movable shaft to move.

[0011] For further improvement, a bracket is arranged on the pedestal and is located at an oblique side of the driving part, a connecting rod is connected to the bracket, a fourth cylinder is connected to the lower end of the connecting rod, and a pressure block is arranged on the piston rod of the fourth cylinder.

[0012] For further improvement, a stabilizing block is provided on the pedestal for the connecting rod to pass through.

[0013] The beneficial effects of the utility model are:

[0014] The detection structure of the utility model is arranged on the commutator in a winding manner, so that it can not only contact with each shaft of the commutator, but also adapt to commutators of different sizes, thereby increasing the adaptability of the detection structure and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the detection unit of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0018] Figure 4 It is a partial structural schematic diagram of the utility model, used to show the vertical transmission unit. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Referring to the accompanying drawings: This commutator shaft pressure resistance testing equipment includes a frame 1, on which a support platform 2 and a testing platform 3 are arranged, the support platform 2 is provided with a horizontal transmission unit 4 driven by a power source and used to drive the commutator to move along the width direction of the support platform 2, the testing platform 3 is provided with a testing unit 5 for shaft pressure resistance testing, and a vertical transmission unit 6 for transporting the commutator into the testing unit 5 and moving along the height direction of the testing platform 3, the testing unit 5 includes a base 51, a driving part 52, and a testing part 53, the base 51 is arranged on the testing platform 3, the driving part 52 is arranged on the base 51, the testing part 53 is wound around the commutator and driven by the driving part 52 so that it can be tightened when the commutator is tested or loosened when the test is completed. The principle of the utility model is that the commutator is placed on the detection table 3, and then the commutator is transported to the bottom of the detection unit 5 through the horizontal transmission unit 4, and then the commutator is further transported through the vertical transmission unit 6, so that the commutator is combined with the detection part 53, and the detection part 53 is arranged on the commutator in a winding manner, so that it can not only contact with each shaft of the commutator, but also adapt to commutators of different sizes, and the tightness during the winding is driven by the driving part 52, so as to maintain a stable connection between the detection part 53 and the commutator during detection.

[0021] The transverse transmission unit 4 includes a moving plate 41 and pneumatic clamps 42 arranged on the moving plate 41 and equidistantly distributed along the width direction of the moving plate 41. The support platform 2 is provided with a slide rail slider structure connected to the moving plate 41 and a first cylinder 43 for driving the moving plate 41 to move. A connecting block 43-a connected to the moving plate 41 is provided on the piston rod of the first cylinder 43. The moving plate 41 is moved by the slide rail slider structure. The slide rail slider structure has good moving smoothness and guidance, and can meet the movement requirements of the moving plate 41. The power is provided by the first cylinder 43. The first cylinder 43 uses the connecting block 43-a to connect with the moving plate 41, so as to transmit its own moving driving force to the moving plate 41. The pneumatic clamps 42 are used to clamp the commutator.

[0022] The detection part 53 is configured as an elastic strip-shaped component, which is wound to form an insertion cavity 53-a for the commutator to be inserted into, and obtains two connection ends that are simultaneously connected to the driving part 52. Such a configuration can realize that the detection part 53 is wound around the commutator in a winding manner, and in order to avoid the need to perform a winding action every time it is combined with the commutator, the detection part 53 always maintains a wound state, that is, a insertion cavity 53-a for the commutator to be inserted therein is formed, and the size of the insertion cavity 53-a is determined according to the winding amplitude, and the strip-shaped component is a metal part (it can be a tension spring or other metal wire), so that the current can be conducted to the commutator.

[0023] The driving part 52 is configured as a second cylinder, and a first mounting groove 52-a is provided at the output end of the second cylinder, and swing arms 7 symmetrically distributed on both sides of the piston rod are provided in the first mounting groove 52-a, and a connecting protrusion 71 is provided on the inner side surface of the swing arm 7, and an extension arm 72 is provided on the outer side surface, and a second mounting groove 52-b is provided at the end of the piston rod of the second cylinder for the connecting protrusion 71 to be placed therein and rotatably connected, and the two connecting protrusions 71 located in the second mounting groove 52-b are stacked up and down, and the extension arm 72 is connected to the connecting end of the strip-shaped component, and the driving part 52 is used to adjust the tightness of the detection part 53, that is, the swing arm 7 is connected to the piston rod of the second cylinder, and the swing arm 7 has There are two rotating connection points, one of which is the swing arm 7 itself rotatingly connected to the first mounting groove 52-a of the second cylinder, and the other is the swing arm 7 rotatingly connected to the second mounting groove 52-b of the piston rod of the second cylinder through the connecting protrusion 71, so that the two swing arms 7 can be driven by the second cylinder, that is, they swing synchronously and in the same direction under the drive of the second cylinder, and the extension arm 72 is used to increase the use length of the swing arm 7 so that the extension arm 72 can cooperate with the vertical transmission unit 6, and the two ends of the detection part 53 are respectively connected to the corresponding extension arms 72, so as to adjust the use size of the insertion cavity 53-a of the detection part 53, that is, the loose or tight state, under the drive of the second cylinder.

[0024] A first opening 31 matching the pneumatic clamp 42 is provided on the detection table 3, and a second opening 51-a matching the first opening 31 is provided on the base 51. The vertical transmission unit 6 can pass through the first opening 31 and the second opening 51-a at the same time, so as to receive the commutator delivered by the pneumatic clamp 42 when located in the first opening 31, and insert the commutator into the insertion cavity 53-a of the detection part 53 when located in the second opening 51-a. The first opening 31 and the second opening 51-a are both used for the vertical transmission unit 6 to pass through. The purpose of passing through is to meet two usage requirements, namely, when the vertical transmission unit 6 is located in the first opening 31, it receives the commutator delivered by the pneumatic clamp 42, and when it is located in the second opening 51-a, it inserts the commutator into the insertion cavity 53-a of the detection part 53. In this way, the entire detection process does not require manual intervention, and automatic operation is realized.

[0025] The vertical transmission unit 6 includes a connecting frame 61, a connecting plate 62, a bearing seat 63, a movable shaft 64, a support block 65, a cylinder frame 66, and a third cylinder 67. The connecting frame 61 is arranged below the detection table 3, the connecting plate 62 is arranged on the upper part of the connecting frame 61, the bearing seat 63 is arranged on the connecting plate 62, the movable shaft 64 moves in the bearing seat 63, the support block 65 is arranged on the upper end of the movable shaft 64, the cylinder frame 66 is arranged on the lower part of the connecting frame 61, and the third cylinder 67 is arranged on the cylinder frame 66 and is used to drive the movable shaft 64 to move. The connecting frame 61 provides a connecting support, that is, it is connected with the connecting plate 62 and the cylinder frame 66, and also enables the movable shaft 64 and the third cylinder 67 to be located near the first opening 31, thereby reducing the volume of the third cylinder 67 (that is, there is no need to equip a cylinder with an overly long body), and the support block 65 is used for placing the commutator, so as to facilitate the vertical transmission unit 6 to transport the commutator.

[0026] A bracket 8 is provided on the base 51 and is located at the oblique side of the driving part 52. A connecting rod 81 is connected to the bracket 8. The lower end of the connecting rod 81 is connected to the fourth cylinder 82. A pressure block 82-a is provided on the piston rod of the fourth cylinder 82. This setting has two functions. One purpose is that during detection, that is, when the commutator is sent into the insertion cavity 53-a, the pressure block 82-a is used in conjunction with the support block 65 to facilitate the commutator to enter the insertion cavity 53-a. The other function is that after the detection is completed, the commutator is quickly separated from the insertion cavity 53-a through the bottom push of the pressure block 82-a.

[0027] The pedestal 51 is provided with a stabilizing block 9 for the connecting rod 81 to pass through. Such a configuration can prevent the connecting rod 81 from shaking when moving, thereby increasing the stability of the connecting rod 81 in use.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A commutator shaft withstand voltage testing device, comprising a frame (1), characterized in that: The frame (1) is provided with a support platform (2) and a detection platform (3); the support platform (2) is provided with a transverse transmission unit (4) driven by a power source and used to drive the commutator to move along the width direction of the support platform (2); the detection platform (3) is provided with a detection unit (5) for performing a sheet shaft pressure resistance detection, and a vertical transmission unit (6) for conveying the commutator into the detection unit (5) and moving along the height direction of the detection platform (3); the detection unit (5) comprises a base (51), a driving part (52), and a detection part (53); the base (51) is provided on the detection platform (3); the driving part (52) is provided on the base (51); the detection part (53) is wound around the commutator and driven by the driving part (52) so as to be tightened when the commutator is detected or loosened when the detection is completed.

2. The commutator shaft withstand voltage detection device according to claim 1, characterized in that: The transverse transmission unit (4) comprises a moving plate (41) and pneumatic clamps (42) arranged on the moving plate (41) and equidistantly distributed along the width direction of the moving plate (41); the support platform (2) is provided with a slide rail and slider structure connected to the moving plate (41) and a first cylinder (43) for driving the moving plate (41) to move; a connecting block (43-a) connected to the moving plate (41) is provided on the piston rod of the first cylinder (43).

3. The commutator shaft withstand voltage detection device according to claim 2, characterized in that: The detection part (53) is configured as an elastic strip-shaped member, which is wound to form an insertion cavity (53-a) for the commutator to be inserted into, and has two connection ends that are simultaneously connected to the driving part (52).

4. The commutator shaft withstand voltage detection device according to claim 3, characterized in that: The driving part (52) is configured as a second cylinder, and a first mounting groove (52-a) is provided at the output end of the second cylinder, and a swing arm (7) symmetrically distributed on both sides of the piston rod is provided in the first mounting groove (52-a), and a connecting protrusion (71) is provided on the inner side surface of the swing arm (7), and an extension arm (72) is provided on the outer side surface, and a second mounting groove (52-b) is provided at the end of the piston rod of the second cylinder for the connecting protrusion (71) to be placed therein and rotatably connected, and the two connecting protrusions (71) located in the second mounting groove (52-b) are arranged to be stacked up and down, and the extension arm (72) is connected to the connecting end of the strip-shaped component.

5. The commutator shaft withstand voltage detection device according to claim 3, characterized in that: The detection table (3) is provided with a first opening (31) matching the pneumatic clamp (42), and the base (51) is provided with a second opening (51-a) matching the first opening (31). The vertical transmission unit (6) can pass through the first opening (31) and the second opening (51-a) at the same time, so as to receive the commutator delivered by the pneumatic clamp (42) when located in the first opening (31), and insert the commutator into the insertion cavity (53-a) of the detection part (53) when located in the second opening (51-a).

6. The commutator shaft withstand voltage testing device according to claim 1, characterized in that: The vertical transmission unit (6) comprises a connecting frame (61), a connecting plate (62), a bearing seat (63), a movable shaft (64), a support block (65), a cylinder frame (66), and a third cylinder (67); the connecting frame (61) is arranged below the detection platform (3); the connecting plate (62) is arranged at the upper section of the connecting frame (61); the bearing seat (63) is arranged on the connecting plate (62); the movable shaft (64) moves in the bearing seat (63); the support block (65) is arranged at the upper end of the movable shaft (64); the cylinder frame (66) is arranged at the lower section of the connecting frame (61); and the third cylinder (67) is arranged on the cylinder frame (66) and is used to drive the movable shaft (64) to move.

7. The commutator shaft withstand voltage testing device according to claim 1, characterized in that: The pedestal (51) is provided with a bracket (8) located obliquely to the side of the driving part (52); the bracket (8) is connected to a connecting rod (81); the lower end of the connecting rod (81) is connected to a fourth cylinder (82); and a pressure block (82-a) is provided on the piston rod of the fourth cylinder (82).

8. The commutator shaft withstand voltage detection device according to claim 7, characterized in that: The pedestal (51) is provided with a stabilizing block (9) through which the connecting rod (81) passes.

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