Electric brush structure and profile cutting machine

Abstract

The utility model provides an electric brush structure and a profile cutting machine. The electric brush structure comprises a pressure sensor, an elastic element, a brush cover and an electric brush, wherein the pressure sensor abuts between the brush cover and the first end of the elastic element, the second end of the elastic element is arranged on the elastic element installation position of the electric brush, the pressure sensor is used for sensing the pressure of the elastic element on the pressure sensor, and the electric brush abuts against a commutator of an armature shaft in the profile cutting machine. The brush braid of the electric brush is used for being connected with the stator of the motor, so that a user can judge whether the type of the electric brush installed in the profile cutting machine is the preset type or not according to the pressure signal collected by the pressure sensor, and the user can replace the electric brush in time when the type of the electric brush is not the preset type. The situation that a user starts the profile cutting machine to cause faults of the profile cutting machine when the model of the electric brush is assembled wrongly is avoided, and the reliability of the profile cutting machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of brush equipment, and in particular to a brush structure and a profile cutting machine. Background Art

[0002] When operating existing profile cutting machines, users must install brushes of the corresponding model to enable the profile cutting machine to operate. However, if the model of the brush installed by the user is different from the model of the brush that matches the profile cutting machine, the profile cutting machine may malfunction when the user starts the machine, reducing the reliability of the profile cutting machine. Utility Model Content

[0003] In view of the above, the present application provides a brush structure and a profile cutting machine, which are used to solve the problem of low reliability of the profile cutting machine.

[0004] The first aspect of the present application provides a brush structure, which is used for a profile cutting machine. The brush structure includes: a pressure sensor, an elastic element, a brush cover and a brush; wherein the pressure sensor is abutted between the brush cover and the first end of the elastic element, the second end of the elastic element is arranged on the elastic element mounting position of the brush, and the pressure sensor is used to sense the pressure of the elastic element on the pressure sensor; the brush is abutted on the commutator of the armature shaft in the profile cutting machine, and the brush braid of the brush is used to connect to the stator of the motor.

[0005] As an optional implementation, the brush structure further includes: a pressure conducting element; the pressure conducting element is arranged between the pressure sensor and the second end of the elastic element.

[0006] As an optional implementation, the brush structure also includes: a brush holder; the pressure-conducting element includes a supporting portion, a first connecting portion and a second connecting portion; the supporting portion is arranged between the pressure sensor and the first end of the elastic element, the first end of the first connecting portion is connected to the first end of the supporting portion, and the first connecting portion is arranged in the first track of the brush holder, the first end of the second connecting portion is connected to the second end of the supporting portion, and the second connecting portion is arranged in the second track of the brush holder, and the brush is arranged in the brush mounting groove of the brush holder; the first track and the second track are arranged on both sides of the elastic element relative to each other, and the first track and the second track are both arranged parallel to the elastic element.

[0007] As an optional implementation method, the materials of the brush holder and the pressure conduction element are both conductive materials, and a brush braid fixing terminal is provided on the supporting part of the pressure conduction element; the first end of the brush braid is connected to the brush, the second end of the brush braid is connected to the brush braid fixing terminal, and a stator connection terminal is provided on the brush holder.

[0008] As an optional implementation, the brush structure further includes: a brush box; a brush cover is arranged at a brush cover mounting position of the brush box, and a brush holder is arranged at a brush holder mounting position of the brush box.

[0009] As an optional implementation, the brush structure also includes: a controller and an alarm device; the input end of the controller is connected to the output end of the pressure sensor, and the output end of the controller is connected to an external device; the controller is configured to control the working state of the motor and the alarm device in response to the pressure sensed by the pressure sensor.

[0010] As an optional implementation, after the user installs the brush, the controller is configured to control the alarm device to be in an alarm state when the pressure collected by the pressure sensor is within a first preset range.

[0011] As an optional implementation, during the operation of the profile cutting machine, the controller is configured to control the alarm device to be in an alarm state when the pressure collected by the pressure sensor is within a second preset range.

[0012] As an optional implementation, during the operation of the profile cutting machine, the controller is configured to control the alarm device to be in an alarm state and control the motor to stop when the pressure collected by the pressure sensor is within a third preset range.

[0013] The second aspect of the present application can also provide a profile cutting machine, which includes: a workbench, a cantilever, a motor, a saw blade and a brush structure as described in any one of the above items; the cantilever is arranged on the workbench, the motor is installed in the cantilever, the saw blade is connected to the output end of the motor, and the brush structure is arranged in the motor.

[0014] The brush structure of the present application can solve the problem in the prior art that when the model of the brush of the profile cutting machine is assembled incorrectly, the profile cutting machine will malfunction and the reliability of the profile cutting machine will be reduced. The brush structure in the present application includes a pressure sensor, an elastic element, a brush cover and a brush; wherein the pressure sensor is abutted between the brush cover and the first end of the elastic element, the second end of the elastic element is set on the elastic element mounting position of the brush, the pressure sensor is used to sense the pressure of the elastic element on the pressure sensor, the brush is abutted on the commutator of the armature shaft in the profile cutting machine, and the brush braid of the brush is used to connect to the stator of the motor, so that the user can judge whether the model of the brush installed in the profile cutting machine is the preset model based on the pressure signal collected by the pressure sensor, so that when the model of the brush is not the preset model, the user can replace the brush in time, avoiding the user starting the profile cutting machine when the brush model is assembled incorrectly, causing the profile cutting machine to malfunction, thereby improving the reliability of the profile cutting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of a brush structure provided in an embodiment of the present application.

[0016] Figure 2 This is another specific structural diagram of a brush structure provided in an embodiment of the present application.

[0017] Figure 3 This is a schematic diagram of the specific structure of a brush holder provided in an embodiment of the present application.

[0018] Figure 4 This is another specific structural diagram of a brush structure provided in an embodiment of the present application.

[0019] Figure 5 This is a structural diagram of a brush box provided in an embodiment of the present application.

[0020] Figure 6 This is another specific structural diagram of a brush structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The technical solution of the present application is further described in detail below through the accompanying drawings and examples.

[0022] In the embodiments of this application, terms such as "first" and "second" are used solely to distinguish between different objects and should not be construed as indicating or implying relative importance or order. For example, terms such as "first application" and "second application" are used to distinguish between different applications, not to describe a specific order of applications. Features defined as "first" or "second" may explicitly or implicitly include one or more of these features.

[0023] See also Figure 1 An embodiment of the present application provides a brush structure, which is applied to a profile cutting machine. Specifically, the brush structure can be as follows: Figure 1 The device shown includes: a pressure sensor 10, an elastic element 20, a brush cover 30 and a brush 40; wherein:

[0024] The pressure sensor 10 is abutted between the brush cover 30 and the first end of the elastic element 20, the second end of the elastic element 20 is arranged on the elastic element 20 mounting position of the brush 40, and the pressure sensor 10 is used to sense the pressure of the elastic element 20 on the pressure sensor 10; the brush 40 is abutted on the commutator of the armature shaft in the profile cutting machine, and the brush braid 41 of the brush 40 is used to connect to the stator of the motor.

[0025] Optionally, the elastic element 20 is a spring, but is not limited thereto in practical applications and may be determined based on the specific application environment, all of which fall within the scope of protection of this application.

[0026] The working process of the above-mentioned charging brush structure is as follows: after the brush 40 is installed in the profile cutting machine, the pressure sensor 10 collects the pressure between the brush cover 30 and the elastic element 20, and outputs the pressure signal to the external device, so that the user can judge whether the model of the brush 40 installed in the profile cutting machine is the preset model based on the pressure signal collected by the pressure sensor 10, and when the model of the brush 40 is not the preset model, replace the brush 40 of the corresponding model in time.

[0027] In actual applications, the user can determine whether the brush 40 currently installed in the profile cutting machine is of the preset model by determining whether the pressure signal collected by the pressure sensor 10 is within the first preset pressure range. The value of the first preset pressure range is not specifically limited herein and can be determined based on the actual application environment, all of which are within the scope of protection of this application.

[0028] The brush structure provided in this embodiment sets a pressure sensor 10 between the brush cover 30 and the elastic element 20, so that after the brush 40 is installed in the profile cutting machine, the user can judge whether the model of the brush 40 installed in the profile cutting machine is the preset model based on the pressure signal collected by the pressure sensor 10, and when the model of the brush 40 is not the preset model, the user can replace the brush 40 in time, avoiding the user starting the profile cutting machine when the model of the brush 40 is assembled incorrectly, causing the profile cutting machine to malfunction, thereby improving the reliability of the profile cutting machine.

[0029] Based on the previous embodiment, please refer to Figure 2 , another embodiment of the present application provides a brush structure, such as Figure 2 As shown, the brush structure further includes a pressure conducting element 50 . The pressure conducting element 50 is disposed between the pressure sensor 10 and the second end of the elastic element 20 .

[0030] In actual applications, the brush 40 compresses the elastic element 20 to generate pressure on the pressure transmission element 50 , and the pressure generated by the brush 40 compressing the elastic element 20 is transmitted to the pressure sensor 10 through the pressure transmission element 50 .

[0031] The brush structure provided in this embodiment provides a pressure conducting element 50 between the elastic element 20 and the pressure sensor 10, so that the pressure sensor 10 can accurately collect the pressure value between the brush cover 30 and the elastic element 20 through the pressure conducting element 50, thereby improving the collection accuracy of the pressure sensor 10 and further improving the safety and reliability of the profile cutting machine.

[0032] Based on the previous embodiment, please refer to Figure 3 Another embodiment of the present application provides a brush structure, such as Figure 3 As shown, the brush structure further includes: a brush holder 60; specifically, as Figure 4As shown, the pressure conducting element 50 includes a supporting portion 51, a first connecting portion 52 and a second connecting portion 53; wherein:

[0033] The supporting portion 51 is arranged between the pressure sensor 10 and the first end of the elastic element 20, the first end of the first connecting portion 52 is connected to the first end of the supporting portion 51, and the first connecting portion 52 is arranged in the first track 61 of the brush holder 60, the first end of the second connecting portion 53 is connected to the second end of the supporting portion 51, and the second connecting portion 53 is arranged in the second track 62 of the brush holder 60, and the brush 40 is arranged in the brush mounting groove of the brush holder 60; the first track 61 and the second track 62 are arranged on both sides of the elastic element 20 opposite to each other, and the first track 61 and the second track 62 are both arranged parallel to the elastic element 20.

[0034] Specifically, under the action of the elastic element 20, the first connecting portion 52 of the pressure conducting element 50 can move along the first track 61, and the second connecting portion 53 can be displaced along the second track 62, so as to drive the supporting portion 51 of the pressure conducting element 50 to displace, squeeze the pressure sensor 10, and then collect the pressure between the brush cover 30 and the pressure conducting element 50 through the pressure sensor 10.

[0035] In practical applications, the brush holder 60 and the pressure conducting element 50 can be made of conductive materials, such as copper brush holder 60 and copper pressure conducting element 50; Figure 2 As shown, a brush braid fixing terminal 70 is provided on the supporting portion 51 of the pressure conducting element 50 ; wherein the first end of the brush braid 41 is connected to the brush 40 , the second end of the brush braid 41 is connected to the brush braid fixing terminal 70 , and a stator connection terminal is provided on the brush holder 60 .

[0036] Specifically, Figure 2 For example, when the brush structure is in operation, the brush 40 abuts against the commutator of the armature shaft in the profile cutting machine, and the brush braid 41 of the brush 40 connects to the brush braid fixing terminal 70 on the copper pressure-conducting element 50. The stator in the profile cutting machine is connected via the copper pressure-conducting element 50 and the stator connection terminal provided on the copper brush holder 60, thereby achieving an electrical connection between the commutator and the stator in the profile cutting machine. Practical applications are not limited to this and are all within the scope of protection of this application.

[0037] Optionally, the brush structure can also be as follows Figure 5 As shown, a brush box 80 is also included. In actual applications, the brush cover 30 can be mounted on the brush cover mounting position 81 of the brush box 80 using a threaded knob, and the brush holder 60 can be mounted on the brush holder mounting position 82 of the brush box 80. The brush cover 30 and the brush holder 60 are thus fixed together via the brush box 80. Practical applications are not limited to these and are all within the scope of protection of this application.

[0038] The pressure conducting element 50 in the brush structure provided in this embodiment includes a supporting portion 51, a first connecting portion 52, and a second connecting portion 53. By arranging the first connecting portion 52 of the pressure conducting element 50 in the first track 61 of the brush holder 60, and arranging the second connecting portion 53 of the pressure conducting element 50 in the second track 62 of the brush holder 60, the rotation of the pressure conducting element 50 is prevented from affecting the acquisition accuracy of the pressure sensor 10, thereby improving the acquisition accuracy of the pressure sensor 10 and further improving the safety and reliability of the profile cutting machine.

[0039] Based on the previous embodiment, please refer to Figure 6 Another embodiment of the present application further provides a brush structure, which also includes: a controller 90 and an alarm device 91; wherein the input end of the controller 90 is connected to the output end of the pressure sensor 10, and the output end of the controller 90 is connected to an external device; the controller 90 is configured to control the working state of the motor and the alarm device 91 in response to the pressure sensed by the pressure sensor 10.

[0040] Optionally, in actual applications, an LED (Light Emitting Diode) lamp can be used as the alarm device 91, so that the controller 90 can alarm by controlling the on and off of the LED lamp, and a speaker can be used as the alarm device 91, so that the controller 90 can alarm by controlling the speaker. The actual application is not limited to this, and it depends on the specific application environment, and all are within the scope of protection of this application.

[0041] In actual applications, after the user installs the brush 40 and the pressure collected by the pressure sensor 10 is within the first preset range, the controller 90 controls the alarm device 91 to be in an alarm state to remind the user that the model of the brush 40 is incorrect; during the operation of the profile cutting machine, if the pressure collected by the pressure sensor 10 is within the second preset range, the controller 90 controls the alarm device 91 to be in an alarm state to remind the user that the brush 40 is about to be over-worn and the carbon brush needs to be replaced; during the operation of the profile cutting machine, if the pressure collected by the pressure sensor 10 is within the third preset range, the controller 90 controls the alarm device 91 to be in an alarm state and controls the motor to stop to prevent the brush 40 from over-worn and damaging the equipment. Specifically, the values ​​of the first preset range, the second preset range, and the third preset range can be determined according to their actual application environment and are not specifically limited here. They are all within the scope of protection of this application.

[0042] The brush structure provided in this embodiment uses a controller 90 to control the alarm device 91 to sound an alarm based on the pressure sensed by the pressure sensor 10, so as to remind the user of the current state of the brush 40, so that the user can control the state of the motor based on the current state of the brush 40, thereby avoiding damage to the equipment due to over-wear of the brush 40, or the user starting the profile cutting machine when the model of the brush 40 is assembled incorrectly, causing the profile cutting machine to malfunction, thereby improving the reliability of the profile cutting machine.

[0043] Based on the above embodiments, another embodiment of the present application further provides a profile cutting machine, which includes: a workbench, a cantilever, a motor, a saw blade and a brush structure as in any of the above embodiments; wherein the cantilever is arranged on the workbench, the motor is installed in the cantilever, the saw blade is connected to the output end of the motor, and the brush structure is arranged in the motor.

[0044] The profile cutting machine provided in this embodiment adopts a brush structure as in any of the above embodiments, so that after the brush 40 is installed in the profile cutting machine, the user can determine whether the model of the brush 40 installed in the profile cutting machine is the preset model based on the pressure signal collected by the pressure sensor 10, and when the model of the brush 40 is not the preset model, the user can replace the brush 40 in time, thereby avoiding the user starting the profile cutting machine when the model of the brush 40 is assembled incorrectly, causing the profile cutting machine to malfunction, thereby improving the reliability of the profile cutting machine.

[0045] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, as long as they are within the scope of the essence of the present application, appropriate changes and modifications made to the above embodiments should fall within the scope of protection claimed in the present application.

Claims

1. A brush structure, used in a profile cutting machine, characterized in that: The brush structure includes: a pressure sensor, an elastic element, a brush cover and a brush; wherein, The pressure sensor is in contact between the brush cover and the first end of the elastic element, the second end of the elastic element is arranged on the elastic element mounting position of the brush, and the pressure sensor is used to sense the pressure of the elastic element on the pressure sensor; The brush abuts against the commutator of the armature shaft in the profile cutting machine, and the brush braid of the brush is used to connect to the stator of the motor.

2. The brush structure according to claim 1, characterized in that: The brush structure further comprises: a pressure conducting element; The pressure conducting element is disposed between the pressure sensor and the second end of the elastic element.

3. The brush structure according to claim 2, characterized in that: The brush structure further includes: a brush holder; The pressure conducting element comprises a supporting portion, a first connecting portion and a second connecting portion; The abutting portion is disposed between the pressure sensor and the first end of the elastic element, the first end of the first connecting portion is connected to the first end of the abutting portion, and the first connecting portion is disposed in the first track of the brush holder, the first end of the second connecting portion is connected to the second end of the abutting portion, and the second connecting portion is disposed in the second track of the brush holder, and the brush is disposed in the brush mounting slot of the brush holder; The first track and the second track are arranged on two sides of the elastic element opposite to each other, and both the first track and the second track are arranged parallel to the elastic element.

4. The brush structure according to claim 3, characterized in that: The brush holder and the pressure conducting element are both made of conductive materials, and a brush braid fixing terminal is provided on the abutting portion of the pressure conducting element; The first end of the brush braid is connected to the brush, the second end of the brush braid is connected to the brush braid fixing terminal, and the brush holder is provided with a stator connecting terminal.

5. The brush structure according to claim 4, characterized in that: The brush structure further includes: a brush box; The brush cover is arranged at the brush cover installation position of the brush box, and the brush holder is arranged at the brush holder installation position of the brush box.

6. The brush structure according to claim 1, characterized in that: The brush structure also includes: a controller and an alarm device; The input end of the controller is connected to the output end of the pressure sensor, and the output end of the controller is connected to an external device; The controller is configured to control operating states of the motor and the alarm device in response to the pressure sensed by the pressure sensor.

7. The brush structure according to claim 6, characterized in that: After the user installs the brush, the controller is configured to control the alarm device to be in an alarm state when the pressure collected by the pressure sensor is within a first preset range.

8. The brush structure according to claim 6, characterized in that: During the operation of the profile cutting machine, the controller is configured to control the alarm device to be in an alarm state when the pressure collected by the pressure sensor is within a second preset range.

9. The brush structure according to claim 6, characterized in that: During operation of the profile cutting machine, the controller is configured to control the alarm device to be in an alarm state and control the motor to stop when the pressure collected by the pressure sensor is within a third preset range.

10. A profile cutting machine, characterized in that: The profile cutting machine comprises: a workbench, a cantilever, a motor, a saw blade and a brush structure according to any one of claims 1 to 9; The cantilever is arranged on the workbench, the motor is installed in the cantilever, the saw blade is connected to the output end of the motor, and the brush structure is arranged in the motor.

Images