Absolute value encoder suitable for DP interface signal

Abstract

The utility model relates to an absolute value encoder suitable for DP interface signals. The absolute value encoder comprises an encoder body. The end part of the encoder body is fixedly connected with a cover plate; a plurality of groups of heat dissipation holes are formed in the side wall of the cover plate; the inner side wall of the cover plate is fixedly connected with a first supporting frame. The side wall of the first supporting frame is fixedly connected with a driving motor. The output end of the driving motor penetrates through the first supporting frame and is fixedly connected with fan blades, during working, external air enters the cover plate through the dustproof net plate, continuous circulation is achieved, the air can drive heat generated by the encoder body in the air flowing process, the heat generated by the encoder body is brought to the outside to be dissipated, and therefore the heat generated by the encoder body is effectively dissipated. The heat of the encoder body is reduced, the heat dissipation effect on the encoder body is achieved, the protection effect on the encoder body is achieved by reducing the heat and temperature of the encoder body during working, and the encoder body is more stable and safer during working.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, in particular to an absolute value encoder suitable for DP interface signals. Background Art

[0002] As we all know, the position of objects needs to be accurately measured and controlled in many fields, but traditional encoders can only provide relative position information, not absolute position information. Under the new situation, benefiting from the development of digital signal processing and microelectronics technology, absolute DP encoders have emerged. The system can directly read the absolute position of objects through the internal integrated sensors and encoder disks, and output them in the form of digital signals.

[0003] The absolute value DP encoder uses the 1511CUP+CP1542 produced by Siemens as the DP master module, the imported encoder equipped with the protocol stack as the DP slave, and reduces the baud rate from the original value to 9600BPS. The USB to 485 line is processed in parallel through the DP interface to ensure that the communication data between the USB to 485 lines is always in a monitored state. On this basis, a series of operations are completed relying on the master station, focusing on analyzing the logic of the slave station's reply command and the product action process, and then sorting out and deeply analyzing the collected data. Through reverse deduction, the DP protocol content is determined to complete the interaction.

[0004] When the working environment temperature of the encoder is too high, because the encoder itself needs to consume a certain amount of energy, and in a high temperature environment, this energy will be directly converted into heat energy, which will cause the temperature of the encoder to rise, making the encoder prone to damage after long-term use. Utility Model Content

[0005] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that when the working environment temperature of the encoder is too high, the encoder itself needs to consume a certain amount of energy, and in a high temperature environment, this energy will be directly converted into heat energy, thereby causing the temperature of the encoder to rise, making the encoder prone to damage after long-term use.

[0006] In order to solve the above technical problems, the utility model provides an absolute value encoder suitable for DP interface signals, including an encoder body; a cover plate is fixedly connected to the end of the encoder body; a plurality of heat dissipation holes are opened on the side wall of the cover plate; a first support frame is fixedly connected to the inner side wall of the cover plate; a drive motor is fixedly connected to the side wall of the first support frame; the output end of the drive motor passes through the first support frame and is fixedly connected to fan blades; the fan blades are arranged between the first support frame and the heat dissipation holes; a pair of dustproof mesh plates are fixedly connected to the side wall of the cover plate. The above structure reduces the heat and temperature of the encoder body during operation, thereby achieving the protection effect of the encoder body, making the encoder body more stable and safe when working.

[0007] In one embodiment of the utility model, the driving motor is a bidirectional motor; the other output end of the driving motor is provided with a first bevel gear; a pair of second support frames are fixedly connected to the inner wall of the cover plate; a connecting rod is rotatably connected to the middle of the second support frame; a second bevel gear is fixedly connected to the end of the connecting rod; the second bevel gear is meshingly connected to the first bevel gear; a pair of scrapers are fixedly connected to the other end of the connecting rod; the connecting rod passes through the side wall of the dustproof mesh plate and is rotatably connected to the dustproof mesh plate; the side wall of the scraper plate is arranged in contact with the side wall of the dustproof mesh plate, and the above structure increases the heat dissipation effect of the encoder body and improves the protection of the encoder body.

[0008] In one embodiment of the utility model, a protective plate is fixedly connected to the surface of the encoder body; multiple groups of first elastic plates are fixedly connected to the surface of the encoder body; multiple groups of second elastic plates are fixedly connected to the surface of the encoder body; the first elastic plates and the second elastic plates are symmetrically arranged; the first elastic plates and the second elastic plates are both curved; the ends of the first elastic plates and the second elastic plates are fixedly connected to the inner wall of the protective plate. The above structure reduces the impact force generated by the collision, thereby achieving a protective effect on the encoder body and reducing the possibility of damage to the encoder body caused by external collisions.

[0009] In one embodiment of the utility model, a pair of buffer springs are fixedly connected to the side walls of the first support frame; the buffer springs are symmetrically arranged; the ends of the buffer springs are fixedly connected to the side walls of the cover plate; buffer damping is installed at the connection of the buffer springs. The above structure reduces the possibility of breakage of the first support frame caused by vibration, thereby improving the stability of the drive motor during operation.

[0010] In one embodiment of the utility model, a paraffin block is fixedly connected to the side wall of the second support frame; the paraffin block is sleeved on the connecting rod and is arranged in contact with the connecting rod. The above structure improves the stability of the connecting rod during operation.

[0011] In one embodiment of the utility model, a heat conducting sheet is fixedly connected to the end of the encoder body; the heat conducting sheets are provided in multiple groups and arranged in an array, and a better heat dissipation effect is achieved through the above structure.

[0012] In one embodiment of the utility model, the surface of the protective plate is provided with anti-skid grooves; the anti-skid grooves are provided in multiple groups and are arranged in a circular array, and the above structure improves the protection effect of the encoder body.

[0013] In one embodiment of the present invention, the protective plate is made of elastic material, and the above structure improves the protection of the encoder body during operation.

[0014] The above technical solution of the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses an absolute value encoder suitable for DP interface signals, which dissipates the heat generated by the encoder body to the outside, thereby reducing the heat of the encoder body itself, thereby achieving a heat dissipation effect on the encoder body, and reducing the heat and temperature of the encoder body when it is working, thereby achieving a protective effect on the encoder body, making the encoder body more stable and safe when working. The dustproof mesh plate can block external dust and impurities when air circulates, reduce the corrosion of internal components caused by external dust and impurities entering the cover plate, and improve the service life of the components.

[0016] The utility model discloses an absolute value encoder suitable for DP interface signals. A scraper is used to clean the surface of the dustproof mesh plate. When the driving motor is working, the scraper can clean the impurities accumulated on the surface of the dustproof mesh plate, thereby reducing the blockage of the dustproof mesh plate caused by long-term use, improving the smoothness of the dustproof mesh plate, increasing the heat dissipation effect of the encoder body, and improving the protection of the encoder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the protective plate in the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the heat conducting sheet in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the cover plate in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the dustproof screen plate in the utility model;

[0023] Explanation of the reference numerals in the specification: 1. Encoder body; 11. Cover plate; 111. Heat dissipation holes; 12. First support frame; 13. Drive motor; 14. Fan blades; 15. Dustproof mesh plate; 2. First bevel gear; 21. Second support frame; 22. Connecting rod; 23. Second bevel gear; 24. Scraper; 3. Protective plate; 31. First elastic plate; 32. Second elastic plate; 4. Buffer spring; 41. Buffer damping; 5. Paraffin block; 6. Heat conducting plate; 7. Anti-slip pattern. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] Reference Figures 1 to 5 As shown, the utility model includes an encoder body 1; a cover plate 11 is fixedly connected to the end of the encoder body 1; a plurality of heat dissipation holes 111 are provided on the side wall of the cover plate 11; a first support frame 12 is fixedly connected to the inner side wall of the cover plate 11; a drive motor 13 is fixedly connected to the side wall of the first support frame 12; the output end of the drive motor 13 passes through the first support frame 12 and is fixedly connected to a fan blade 14; the fan blade 14 is arranged between the first support frame 12 and the heat dissipation holes 111; a pair of dustproof mesh plates 15 are fixedly connected to the side wall of the cover plate 11. When working, the cover plate 11 is provided at the end of the encoder body 1. When the encoder body 1 generates a large amount of heat that is difficult to dissipate during operation, the switch of the drive motor 13 is turned on when a high-temperature working environment is detected through a pre-set sensor, so as to drive the fan blade 14 to rotate, thereby The fan blades 14 generate negative pressure to discharge the air inside the cover 11 from the heat dissipation holes 111, and then allow the outside air to enter the cover 11 through the dustproof mesh plate 15, so as to continuously circulate. During the air flow, the air will drive the heat generated by the encoder body 1, and bring the heat generated by the encoder body 1 to the outside to dissipate, thereby reducing the heat of the encoder body 1 itself, thereby achieving the heat dissipation effect of the encoder body 1, and by reducing the heat and temperature of the encoder body 1 when it is working, thereby achieving the protection effect of the encoder body 1, making the encoder body 1 more stable and safe when working, and the dustproof mesh plate 15 can block external dust and impurities when the air circulates, reduce the external dust and impurities entering the cover 11 and causing corrosion to internal components, thereby increasing the service life of components.

[0026] Reference Figures 3 to 5As shown, the driving motor 13 is a bidirectional motor setting; the other output end of the driving motor 13 is fixedly connected to the first bevel gear 2; the inner side wall of the cover plate 11 is fixedly connected to a pair of second support frames 21; the middle part of the second support frame 21 is rotatably connected to a connecting rod 22; the end of the connecting rod 22 is fixedly connected to a second bevel gear 23; the second bevel gear 23 is meshingly connected with the first bevel gear 2; the other end of the connecting rod 22 is fixedly connected to a pair of scrapers 24; the connecting rod 22 passes through the side wall of the dustproof mesh plate 15, and is rotatably connected to the dustproof mesh plate 15; the side wall of the scraper 24 is arranged in contact with the side wall of the dustproof mesh plate 15. When working, after a long period of use, external dust and impurities will be accumulated on the surface of the dustproof mesh plate 15 driven by the air flow, which is easy to guide This causes the mesh holes of the dustproof mesh plate 15 to be clogged, resulting in poor heat dissipation effect. At this time, a scraper 24 is provided on the surface of the dustproof mesh plate 15. When the output end of the drive motor 13 rotates, the drive motor 13 drives the connecting rod 22 to rotate under the connection of the first bevel gear 2 and the second bevel gear 23. When the connecting rod 22 rotates, it will drive the scraper 24 at the end of the connecting rod 22 to rotate, so that the scraper 24 cleans the surface of the dustproof mesh plate 15. When the drive motor 13 is working, the scraper 24 can clean the impurities accumulated on the surface of the dustproof mesh plate 15, thereby reducing the blockage caused by the long-term use of the dustproof mesh plate 15, improving the smoothness of the dustproof mesh plate 15, increasing the heat dissipation effect of the encoder body 1, and improving the protection of the encoder body 1.

[0027] Reference Figure 1 and Figure 2As shown, the driving motor 13 is a bidirectional motor setting; the other output end of the driving motor 13 is fixedly connected to the first bevel gear 2; the inner side wall of the cover plate 11 is fixedly connected to a pair of second support frames 21; the middle part of the second support frame 21 is rotatably connected to a connecting rod 22; the end of the connecting rod 22 is fixedly connected to a second bevel gear 23; the second bevel gear 23 is meshingly connected with the first bevel gear 2; the other end of the connecting rod 22 is fixedly connected to a pair of scrapers 24; the connecting rod 22 passes through the side wall of the dustproof mesh plate 15, and is rotatably connected to the dustproof mesh plate 15; the side wall of the scraper 24 is arranged in contact with the side wall of the dustproof mesh plate 15. When working, after a long period of use, external dust and impurities will be accumulated on the surface of the dustproof mesh plate 15 driven by the air flow, which is easy to guide This causes the mesh holes of the dustproof mesh plate 15 to be clogged, resulting in poor heat dissipation effect. At this time, a scraper 24 is provided on the surface of the dustproof mesh plate 15. When the output end of the drive motor 13 rotates, the drive motor 13 drives the connecting rod 22 to rotate under the connection of the first bevel gear 2 and the second bevel gear 23. When the connecting rod 22 rotates, it will drive the scraper 24 at the end of the connecting rod 22 to rotate, so that the scraper 24 cleans the surface of the dustproof mesh plate 15. When the drive motor 13 is working, the scraper 24 can clean the impurities accumulated on the surface of the dustproof mesh plate 15, thereby reducing the blockage caused by the long-term use of the dustproof mesh plate 15, improving the smoothness of the dustproof mesh plate 15, increasing the heat dissipation effect of the encoder body 1, and improving the protection of the encoder body 1.

[0028] Reference Figure 4 As shown, a pair of buffer springs 4 are fixedly connected to the side walls of the first support frame 12; the buffer springs 4 are symmetrically arranged; the ends of the buffer springs 4 are fixedly connected to the side walls of the cover plate 11; the connection of the buffer springs 4 is installed with a buffer damper 41. During operation, by arranging the buffer springs 4 on the first support frame 12, when the drive motor 13 is working, the motor itself will generate a certain vibration, and the first support frame 12 may break after being vibrated for a long time. At this time, by arranging the buffer springs 4 between the first support frame 12 and the cover plate 11, the vibration generated when the drive motor 13 is working can be volatilized, thereby reducing the possibility of breaking the first support frame 12 caused by the vibration and improving the stability of the drive motor 13 when working.

[0029] Reference Figure 4 and Figure 5 As shown, a paraffin block 5 is fixedly connected to the side wall of the second support frame 21; the paraffin block 5 is sleeved on the connecting rod 22 and is arranged in contact with the connecting rod 22. During operation, the connecting rod 22 is lubricated by using the paraffin block 5, thereby reducing the possibility of the connecting rod 22 getting stuck after working for a long time, thereby improving the stability of the connecting rod 22 during operation.

[0030] Reference Figure 3As shown, a heat conducting sheet 6 is fixedly connected to the end of the encoder body 1; the heat conducting sheet 6 is provided in multiple groups and arranged in an array. When working, by providing the heat conducting sheet 6 between the encoder body 1 and the cover plate 11, the heat generated by the encoder body 1 can be better transferred to the inside of the cover plate 11, and then the heat is taken out through the action of the fan blades 14, thereby achieving a better heat dissipation effect.

[0031] Reference Figure 2 As shown, the surface of the protective plate 3 is provided with anti-slip grooves 7; the anti-slip grooves 7 are provided in multiple groups and are arranged in a circular array. During operation, by providing the anti-slip grooves 7 on the surface of the protective plate 3, the friction between the hands of the staff and the encoder body 1 can be increased when the encoder body 1 is installed and disassembled, thereby reducing the possibility of slipping and improving the protection effect of the encoder body 1.

[0032] Reference Figure 2 As shown, the protective plate 3 is made of elastic material. When working, the protective plate 3 is elastically set, which can provide a better buffering effect when the encoder body 1 is hit by external impact, thereby improving the protection of the encoder body 1 during operation.

[0033] Working principle: A cover plate 11 is provided at the end of the encoder body 1. When the encoder body 1 generates a large amount of heat that is difficult to dissipate during operation, the pre-set sensor detects a high-temperature working environment and turns on the switch of the drive motor 13 to drive the fan blades 14 to rotate, thereby generating negative pressure through the fan blades 14 to discharge the air inside the cover plate 11 from the heat dissipation holes 111, and then allow the outside air to enter the cover plate 11 through the dustproof mesh plate 15, so as to continuously circulate. During the air flow, the air will drive the heat generated by the encoder body 1, and bring the heat generated by the encoder body 1 to the outside to dissipate, thereby reducing the heat of the encoder body 1 itself, achieving the heat dissipation effect of the encoder body 1, and by reducing the heat and temperature of the encoder body 1 during operation, thereby achieving the protection effect of the encoder body 1, making the encoder body 1 more stable and safe when working, and the dustproof mesh plate 15 can block external dust and impurities when the air circulates, reduce the external dust and impurities entering the cover plate 11 to cause corrosion to internal components, and improve the service life of components.

[0034] After long-term use, external dust and impurities will accumulate on the surface of the dustproof mesh plate 15 driven by air flow, which may easily cause the mesh holes of the dustproof mesh plate 15 to become clogged, resulting in poor heat dissipation effect. At this time, a scraper 24 is provided on the surface of the dustproof mesh plate 15. When the output end of the drive motor 13 rotates, the drive motor 13 drives the connecting rod 22 to rotate under the connection of the first bevel gear 2 and the second bevel gear 23. When the connecting rod 22 rotates, it will drive the scraper 24 at the end of the connecting rod 22 to rotate, so that the scraper 24 cleans the surface of the dustproof mesh plate 15. When the drive motor 13 is working, the scraper 24 can clean the impurities accumulated on the surface of the dustproof mesh plate 15, thereby reducing the blockage caused by the long-term use of the dustproof mesh plate 15, improving the smoothness of the dustproof mesh plate 15, increasing the heat dissipation effect of the encoder body 1, and improving the protection of the encoder body 1.

[0035] By providing a protective plate 3 on the surface of the encoder body 1, when the encoder body 1 is subjected to external collision, the first elastic plate 31 and the second elastic plate 32 provided between the protective plate 3 and the encoder body 1 can bend when subjected to impact force, and the impact force can be buffered and offset by their own elasticity, thereby reducing the impact force generated by the collision, thereby achieving a protective effect on the encoder body 1 and reducing the possibility of damage to the encoder body 1 caused by external collision.

[0036] By providing a buffer spring 4 on the first support frame 12, when the driving motor 13 is working, the motor itself will generate a certain vibration, and the first support frame 12 may break after being vibrated for a long time. At this time, by providing a buffer spring 4 between the first support frame 12 and the cover plate 11, the vibration generated when the driving motor 13 is working can be volatilized, the possibility of the first support frame 12 breaking due to the vibration is reduced, and the stability of the driving motor 13 when working is improved.

[0037] By using the paraffin block 5 to lubricate the connecting rod 22, the possibility of the connecting rod 22 getting stuck after working for a long time is reduced, thereby improving the stability of the connecting rod 22 during operation.

[0038] By providing a heat conducting sheet 6 between the encoder body 1 and the cover plate 11, the heat generated by the encoder body 1 can be better transferred to the inside of the cover plate 11, and then the heat is taken out through the action of the fan blades 14, thereby achieving a better heat dissipation effect.

[0039] By providing anti-slip grooves 7 on the surface of the protective plate 3, the friction between the worker's hand and the encoder body 1 can be increased when installing and disassembling the encoder body 1, thereby reducing the possibility of slipping and improving the protection effect of the encoder body 1.

[0040] By making the protective plate 3 elastic, it is possible to achieve a better buffering effect when the encoder body 1 is impacted by the outside world, thereby improving the protection of the encoder body 1 during operation.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An absolute value encoder suitable for DP interface signals, comprising an encoder body (1); characterized in that: A cover plate (11) is fixedly connected to the end of the encoder body (1); a plurality of heat dissipation holes (111) are provided on the side wall of the cover plate (11); a first support frame (12) is fixedly connected to the inner side wall of the cover plate (11); a drive motor (13) is fixedly connected to the side wall of the first support frame (12); an output end of the drive motor (13) passes through the first support frame (12) and is fixedly connected to a fan blade (14); the fan blade (14) is arranged between the first support frame (12) and the heat dissipation holes (111); and a pair of dustproof screens (15) are fixedly connected to the side wall of the cover plate (11).

2. The absolute value encoder suitable for DP interface signal according to claim 1, characterized in that: The driving motor (13) is a bidirectional motor; the other output end of the driving motor (13) is fixedly connected to a first bevel gear (2); the inner wall of the cover plate (11) is fixedly connected to a pair of second support frames (21); the middle part of the second support frame (21) is rotatably connected to a connecting rod (22); the end of the connecting rod (22) is fixedly connected to a second bevel gear (23); the second bevel gear (23) is meshingly connected to the first bevel gear (2); the other end of the connecting rod (22) is fixedly connected to a pair of scrapers (24); the connecting rod (22) passes through the side wall of the dustproof mesh plate (15) and is rotatably connected to the dustproof mesh plate (15); the side wall of the scraper (24) is arranged in contact with the side wall of the dustproof mesh plate (15).

3. The absolute value encoder suitable for DP interface signal according to claim 2, characterized in that: A protective plate (3) is fixedly connected to the surface of the encoder body (1); multiple groups of first elastic plates (31) are fixedly connected to the surface of the encoder body (1); multiple groups of second elastic plates (32) are fixedly connected to the surface of the encoder body (1); the first elastic plates (31) and the second elastic plates (32) are symmetrically arranged; the first elastic plates (31) and the second elastic plates (32) are both bent; and the ends of the first elastic plates (31) and the second elastic plates (32) are fixedly connected to the inner wall of the protective plate (3).

4. The absolute value encoder suitable for DP interface signal according to claim 3, characterized in that: A pair of buffer springs (4) are fixedly connected to the side walls of the first support frame (12); the buffer springs (4) are symmetrically arranged; the ends of the buffer springs (4) are fixedly connected to the side walls of the cover plate (11); and buffer dampers (41) are installed at the connection points of the buffer springs (4).

5. The absolute value encoder suitable for DP interface signal according to claim 4, characterized in that: A paraffin block (5) is fixedly connected to the side wall of the second support frame (21); the paraffin block (5) is sleeved on the connecting rod (22) and is arranged in contact with the connecting rod (22).

6. The absolute value encoder suitable for DP interface signal according to claim 5, characterized in that: A heat conducting sheet (6) is fixedly connected to the end of the encoder body (1); the heat conducting sheets (6) are provided in multiple groups and arranged in an array.

7. The absolute value encoder suitable for DP interface signal according to claim 6, characterized in that: The surface of the protection plate (3) is provided with anti-skid patterns (7); the anti-skid patterns (7) are provided in multiple groups and are arranged in a circular array.

8. The absolute value encoder suitable for DP interface signals according to claim 7, characterized in that: The protective plate (3) is made of elastic material.

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