Motor induction device with grating structure

Abstract

The utility model relates to a motor induction device with a grating structure. The technical problem that an existing grating structure is high in cost is solved. Comprising a grating shell arranged at one end of a motor, a grating base connected with an output assembly of the motor is rotationally arranged in the grating shell, the grating base is columnar or cylindrical, an annular grating ring is arranged on the outer side of the circumferential direction of the grating base, and the grating ring is provided with a plurality of first grating strips and second grating strips which are different in color. The first grating strips and the second grating strips incline towards the same direction and are distributed in a one-to-one staggered mode in the circumferential direction, a circuit board with a grating signal receiving module is arranged on the outer side of the grating shell, and the grating signal receiving module corresponds to the grating ring. The device has the advantages that the grating seat transmits grating signals to the grating signal receiving module through the first grating strip and the second grating strip, so that the grating cost can be reduced while the measurement precision is ensured. The transmission stability of the output seat to the grating seat can be ensured through the stabilizing shaft and the stabilizing bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of grating motors, and particularly relates to a grating structure motor induction device. Background Art

[0002] A motor is a power device widely used in modern industrial production, and accurate measurement of its rotational speed is the key to ensuring its stable operation; currently, the existing methods for measuring the rotational speed of a motor are: grating method, Hall switch detection method, magnetoelectric method, photoelectric reflection method, etc. Among them, most of the existing motor measurement methods use the grating method to measure the rotational speed of the motor, and the grating method has the advantages of high-precision positioning, real-time feedback control, and strong anti-interference ability; however, the cost of the existing grating structure is relatively high, and the installation is too complex, resulting in low installation efficiency, which affects the user experience. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems and provide a grating structure motor induction device.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a grating structure motor induction device, including a grating housing arranged at one end of the motor, a grating seat rotatably arranged in the grating housing and connected to the output component of the motor, the grating seat is columnar or cylindrical, and an annular grating ring is arranged on the outer circumference of the grating seat, and the grating ring has a plurality of first grating bars and second grating bars with different colors, the first grating bars and the second grating bars are both inclined in the same direction and are arranged in a circumferential staggered manner one by one, a circuit board with a grating signal receiving module is arranged outside the grating housing, and the grating signal receiving module corresponds to the grating ring. Through the grating signal receiving module, the grating signals of the first grating bars and the second grating bars can be received to ensure the speed measurement accuracy of the motor, and through the grating signal receiving module, the motor can be quickly controlled, and the motor can be measured and controlled in real time.

[0005] In the above-mentioned grating structure motor induction device, the grating ring is formed by connecting the head and tail of a flexible strip-shaped body, and the first grating bars and the second grating bars are respectively grating layers arranged on the outer side of the flexible strip-shaped body by printing or pasting methods. The grating layer composed of the strip-shaped body, the first grating bars and the second grating bars can effectively reduce the production cost while ensuring the measurement accuracy, and can facilitate the installation and improve the installation efficiency.

[0006] In the above-mentioned grating structure motor induction device, the strip-shaped body is a grating sticker, and the strip-shaped body is connected to the outer side of the grating seat by an adhesive method.

[0007] In the above-mentioned grating structure motor induction device, the first grating strip and the second grating strip are both strip-shaped patches, and the first grating strip and the second grating strip are respectively pasted circumferentially and staggered one by one on the outer side of the grating seat to form the above-mentioned grating ring.

[0008] In the above-mentioned grating structure motor induction device, the first grating strip is a strip-shaped patch, and the first grating strips are arranged at intervals circumferentially and pasted on the outer side of the grating seat, and a second grating strip located on the outer side of the grating seat is formed between two adjacent first grating strips; or, the second grating strip is a strip-shaped patch, and the second grating strips are arranged at intervals circumferentially and pasted on the outer side of the grating seat, and a first grating strip located on the outer side of the grating seat is formed between two adjacent second grating strips.

[0009] In the above-mentioned grating structure motor induction device, the grating housing includes a grating base sleeved and fixed at one end of the motor, a cylindrical housing is detachably arranged on the grating base, and one end of the cylindrical housing is open and the other end is closed. The open end of the cylindrical housing is closed by the grating base, and the grating seat is rotatably arranged in the cylindrical housing. The cylindrical housing can protect the grating seat, improve the service life of the grating seat, and ensure the measurement accuracy.

[0010] In the above-mentioned grating structure motor induction device, the output assembly includes an output seat connected to the gear transmission group in the motor, and the output seat passes through the grating base and is connected to the grating seat. The output seat is inserted on the gear transmission group and can rotate synchronously with the gear transmission group, so as to drive the grating seat to rotate synchronously with the gear transmission group, and can measure the rotational speed of the motor.

[0011] In the above-mentioned grating structure motor induction device, the grating seat includes an outer cylinder body and an inner cylinder body arranged coaxially. The grating ring is arranged on the circumferential outer side of the outer cylinder body, and the outer cylinder body and the inner cylinder body are connected by a plurality of connecting plates distributed circumferentially. The outer circumferential side of the upper end of the output seat has card slots corresponding to the connecting plates respectively, and the connecting plates and the card slots are connected by clamping. A stabilizing shaft is provided at the center of the upper end of the output seat, and the stabilizing shaft passes through the inner cylinder body, and a stabilizing bearing is provided between the stabilizing shaft and the inner cylinder body. The connection stability between the grating seat and the output seat can be ensured by the clamping connection between the connecting plates and the card slots. The output seat can drive the grating seat to rotate through the stabilizing shaft, and the rotational stability can be ensured by the stabilizing bearing.

[0012] In the above-mentioned grating structure motor induction device, the circuit board is arranged on the outer side of the cylindrical shell through mounting screws, and the cylindrical shell is provided with through holes corresponding to the grating signal receiving module and the outer side of the grating ring. The mounting screws can ensure that the circuit board is fixedly arranged on the cylindrical shell, and facilitate the loading and unloading of the circuit board, improving the loading and unloading efficiency. Moreover, through the through holes, the grating signal receiving module can receive the grating signals of the grating ring.

[0013] In the above-mentioned grating structure motor induction device, the closed end of the cylindrical shell is provided with an output hole, and an output shaft extending to the outside of the cylindrical shell is inserted into the output hole. One end of the output shaft is connected to the center of the grating seat through a connecting seat, and an output bearing is arranged between the connecting seat and the closed end of the cylindrical shell. The output hole facilitates the arrangement of the output shaft in the cylindrical shell, and the connecting seat enables the output shaft to rotate and output synchronously with the grating seat.

[0014] Compared with the existing technology, the advantages of the present utility model are as follows:

[0015] 1. The grating seat transmits grating signals to the grating signal receiving module through the first grating bar and the second grating bar, which can ensure the measurement accuracy while reducing the grating cost.

[0016] 2. The output seat can be fixedly connected to the grating seat through the card slot and the connecting plate, facilitating the installation of the grating seat. Moreover, through the stabilizing shaft and the stabilizing bearing, the driving stability of the output seat to the grating seat can be ensured.

[0017] 3. The connecting plate can connect the outer cylinder and the inner cylinder, improving the structural strength of the grating seat and extending the service life. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model.

[0019] Figure 2 It is a structural sectional view of Embodiment 1 of the present utility model.

[0020] Figure 3 It is an exploded view of the structure of the grating shell in Embodiment 1 of the present utility model.

[0021] Figure 4 It is an exploded view of the structure of the output component in Embodiment 1 of the present utility model.

[0022] Figure 5 It is an exploded view of the structure of the output component from another perspective in Embodiment 1 of the present utility model.

[0023] Figure 6 It is a schematic structural diagram of the circuit board in Embodiment 1 of the present utility model.

[0024] Figure 7 It is a schematic structural diagram of the second embodiment of the present utility model.

[0025] Figure 8 It is a schematic structural diagram of the third embodiment of the present utility model.

[0026] Figure 9 It is a schematic structural diagram of the fourth embodiment of the present utility model.

[0027] Figure 10 It is a schematic structural diagram of the second grating bar in the fourth embodiment of the present utility model.

[0028] In the figure: motor 1, gear transmission group 11, grating housing 2, grating base 21, cylindrical housing 22, open end 221, through hole 222, closed end 223, output hole 224, output shaft 225, output assembly 3, output seat 31, card slot 32, stabilizing shaft 33, stabilizing bearing 34, grating seat 4, grating ring 41, first grating bar 411, second grating bar 412, outer cylinder 42, inner cylinder 43, connecting plate 44, circuit board 5, grating signal receiving module 51, strip 6, connecting seat 7, output bearing 8. Specific embodiments

[0029] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 shown, a grating structure motor induction device includes a grating housing 2 provided at one end of a motor 1. A grating seat 4 connected to the output assembly 3 of the motor 1 is rotatably provided inside the grating housing 2. The grating housing 2 can protect the grating seat 4. The grating seat 4 is columnar or cylindrical, and an annular grating ring 41 is provided on the circumferential outer side of the grating seat 4. The grating ring 41 has a plurality of first grating bars 411 and second grating bars 412 with different colors. The first grating bars 411 and the second grating bars 412 are all inclined in the same direction and are arranged in a circumferential staggered manner one by one. A circuit board 5 with a grating signal receiving module 51 is provided outside the grating housing 2, and the grating signal receiving module 51 corresponds to the grating ring 41. The grating signal receiving module 51 can receive the grating signals of the first grating bars 411 and the second grating bars 412, ensuring the speed measurement accuracy of the motor. And the motor 1 can be quickly controlled through the grating signal receiving module 51, and the motor 1 can be measured and controlled in real time.

[0032] Specifically, the grating ring 41 is composed of a flexible strip 6 connected end to end, and the first grating bar 411 and the second grating bar 412 are grating layers arranged on the outside of the flexible strip 6 by printing or pasting. The grating layer composed of the strip 6 and the first grating bar 411 and the second grating bar 412 can effectively reduce the production cost while ensuring the measurement accuracy, and can be easy to install and improve the installation efficiency.

[0033] Among them, the grating housing 2 includes a grating base 21 which is fixedly mounted on one end of the motor 1, and a cylindrical housing 22 is detachably provided on the grating base 21. The cylindrical housing 22 can be easily installed and disassembled through the grating base 21, and one end of the cylindrical housing 22 is open and the other end is closed. The open end 221 of the cylindrical housing 22 is closed by the grating base 21 and the grating seat 4 is rotatably arranged in the cylindrical housing 22. The cylindrical housing 22 can protect the grating seat 4, thereby improving the service life of the grating seat 4 and ensuring the measurement accuracy.

[0034] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the output assembly 3 includes an output seat 31 connected to the gear transmission group 11 in the motor 1, and the output seat 31 passes through the grating base 21 and is connected to the grating seat 4. The output seat 31 is plugged into the gear transmission group 11 and can rotate synchronously with the gear transmission group 11, thereby driving the grating seat 4 to rotate synchronously with the gear transmission group 11, and the rotational speed of the motor 1 can be measured.

[0035] Furthermore, the grating seat 4 includes an outer cylinder 42 and an inner cylinder 43 which are coaxially arranged, the grating ring 41 is arranged on the circumferential outer side of the outer cylinder 42, and the outer cylinder 42 and the inner cylinder 43 are connected by a plurality of circumferentially distributed connecting plates 44, and the circumferential outer side of the upper end of the output seat 31 has a card slot 32 corresponding to the connecting plate 44 respectively, the connecting plate 44 and the card slot 32 are connected to each other by carding, a stabilizing shaft 33 is provided at the center of the upper end of the output seat 31, and the stabilizing shaft 33 is passed through the inner cylinder 43 and a stabilizing bearing 34 is provided between the stabilizing shaft 33 and the inner cylinder 43, the connection stability between the grating seat 4 and the output seat 31 can be ensured by the carding connection between the connecting plate 44 and the card slot 32, and the output seat 31 can drive the grating seat 4 to rotate through the stabilizing shaft 33, and the rotation stability can be ensured by the stabilizing bearing 34.

[0036] Among them, the circuit board 5 is arranged outside the cylindrical shell 22 through mounting screws. The cylindrical shell 22 has through holes 222 corresponding to the outside of the grating signal receiving module 51 and the grating ring 41. By means of the mounting screws 5, it can be ensured that the circuit board 5 is fixedly arranged on the cylindrical shell 22, and it is convenient to load and unload the circuit board 5, improving the loading and unloading efficiency. And through the through holes 222, the grating signal receiving module 51 can receive the grating signal of the grating ring 41.

[0037] Combined with Figure 1 、 Figure 5 As shown, the closed end 223 of the cylindrical shell 22 has an output hole 224. An output shaft 225 extending to the outside of the cylindrical shell 22 is inserted into the output hole 224. One end of the output shaft 225 is connected to the center of the grating seat 4 through a connecting seat 7. An output bearing 8 is arranged between the connecting seat 7 and the closed end 223 of the cylindrical shell 22. Through the output hole 224, it is convenient to arrange the output shaft 225 in the cylindrical shell 22. And through the connecting seat 7, the output shaft 225 can rotate synchronously with the grating seat 4 for output.

[0038] The principle of this embodiment is that one end of the output seat 31 is inserted on the gear transmission group 11, so that the output seat 31 rotates synchronously with the gear transmission component 11. And the other end of the output seat 31 is connected to the grating seat 4 through a clamping connection between the clamping groove 32 and the connecting plate 44 on the circumferential outer side, which can drive the grating seat 4 to rotate. And the middle part of the output seat 31 is inserted into the grating seat 4 through a stable shaft 33 and a stable bearing 34, which can ensure the rotation stability, ensure that the output seat 31 can rotate synchronously with the gear transmission component 11, ensure the measurement accuracy. The grating ring 41 of the grating seat 4 can transmit the grating signal to the grating signal receiving module 51 through the through holes 222 during the rotation process, ensuring the measurement accuracy of the rotation speed of the motor 1.

[0039] Embodiment Two

[0040] The structure and working principle of this embodiment are basically the same as those of Embodiment One. The difference is that, as Figure 7 shown, the strip 6 is a grating sticker and the strip 6 is connected to the outside of the grating seat 4 by an adhesive bonding method. The strip 6 being a grating sticker can further reduce the grating cost and improve the installation efficiency.

[0041] Embodiment Three

[0042] The structure and working principle of this embodiment are basically the same as those of Embodiment One. The difference is that, as Figure 8As shown, both the first grating strip 411 and the second grating strip 412 are strip-shaped patches, and the first grating strip 411 and the second grating strip 412 are respectively circumferentially and alternately pasted on the outside of the grating seat 4 to form the above-mentioned grating ring 41. The first grating strip 411 and the second grating strip 412 are strip-shaped patches and are directly alternately pasted on the outside of the grating seat 4, which can ensure the measurement effect while reducing the cost of the strip 6 and improving the installation efficiency.

[0043] Embodiment 4

[0044] The structure and working principle of this embodiment are basically the same as those of Embodiment 1, and the difference lies in that, as Figure 9 , Figure 10 shown, the first grating strip 411 is a strip-shaped patch, the first grating strips 411 are circumferentially spaced and pasted on the outside of the grating seat 4, and a second grating strip 412 located on the outside of the grating seat 4 is formed between two adjacent first grating strips 411; or, the second grating strip 412 is a strip-shaped patch, the second grating strips 412 are circumferentially spaced and pasted on the outside of the grating seat 4, and a first grating strip 411 located on the outside of the grating seat 4 is formed between two adjacent second grating strips 412. Only the first grating strip 411 or the second grating strip 412 needs to be pasted, which can further reduce the grating cost and improve the installation efficiency.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0046] Although terms such as motor 1, gear transmission group 11, grating housing 2, grating base 21, cylindrical housing 22, open end 221, through hole 222, closed end 223, output hole 224, output shaft 225, output assembly 3, output seat 31, card slot 32, stabilizing shaft 33, stabilizing bearing 34, grating seat 4, grating ring 41, first grating strip 411, second grating strip 412, outer cylinder 42, inner cylinder 43, connecting plate 44, circuit board 5, grating signal receiving module 51, strip 6, connecting seat 7, output bearing 8 are used more in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A grating structure motor induction device, comprising a grating housing (2) arranged at one end of a motor (1), characterized in that, A grating base (4) connected to an output component (3) of a motor (1) is rotatably arranged inside the described grating housing (2). The grating base (4) is columnar or tubular, and an annular grating ring (41) is arranged on the outer circumference of the grating base (4). The grating ring (41) has a number of first grating strips (411) and second grating strips (412) of different colors. The first grating strips (411) and the second grating strips (412) are both inclined in the same direction and are arranged in a circumferential and staggered manner one by one. A circuit board (5) with a grating signal receiving module (51) is arranged outside the grating housing (2), and the grating signal receiving module (51) corresponds to the grating ring (41).

2. The motor induction device with a grating structure according to claim 1, characterized in that The described grating ring (41) is formed by connecting the head and tail of a flexible strip (6). The first grating strips (411) and the second grating strips (412) are respectively grating layers arranged on the outer side of the flexible strip (6) by printing or pasting methods.

3. A grating structure motor induction device according to claim 2, characterized in that, The strip (6) is a grating sticker, and the strip (6) is connected to the outer side of the grating base (4) by an adhesive method.

4. A grating structure motor induction device according to claim 1, characterized in that, The first grating strips (411) and the second grating strips (412) are both strip-shaped patches, and the first grating strips (411) and the second grating strips (412) are respectively pasted on the outer side of the grating base (4) in a circumferential and staggered manner one by one to form the above-mentioned grating ring (41).

5. The motor induction device with a grating structure according to claim 1, characterized in that, The first grating strips (411) are strip-shaped patches. The first grating strips (411) are arranged at intervals in the circumferential direction and are pasted on the outer side of the grating base (4). Second grating strips (412) located on the outer side of the grating base (4) are formed between two adjacent first grating strips (411); or, the second grating strips (412) are strip-shaped patches. The second grating strips (412) are arranged at intervals in the circumferential direction and are pasted on the outer side of the grating base (4). First grating strips (411) located on the outer side of the grating base (4) are formed between two adjacent second grating strips (412).

6. A grating structure motor induction device according to any one of claims 1-5, characterized in that, The described grating housing (2) includes a grating base (21) sleeved and fixed at one end of the motor (1). A tubular housing (22) is detachably arranged on the grating base (21). One end of the tubular housing (22) is open and the other end is closed. The open end (221) of the tubular housing (22) is closed by the grating base (21), and the grating base (4) is rotatably arranged inside the tubular housing (22).

7. The motor induction device with a grating structure according to claim 6, characterized in that, The output component (3) includes an output seat (31) connected to a gear transmission group (11) inside the motor (1). The output seat (31) passes through the grating base (21) and is connected to the grating base (4).

8. A grating structure motor induction device according to claim 7, characterized in that, The described grating base (4) includes an outer cylinder (42) and an inner cylinder (43) arranged coaxially. The grating ring (41) is arranged on the circumferential outer side of the outer cylinder (42). The outer cylinder (42) and the inner cylinder (43) are connected by a plurality of circumferentially distributed connecting plates (44). The upper end of the output base (31) has clamping grooves (32) corresponding to the connecting plates (44) respectively on the circumferential outer side. The connecting plates (44) and the clamping grooves (32) are clamped and connected to each other. A stabilizing shaft (33) is provided at the center of the upper end of the output base (31). The stabilizing shaft (33) passes through the inner cylinder (43), and a stabilizing bearing (34) is provided between the stabilizing shaft (33) and the inner cylinder (43).

9. The motor induction device with a grating structure according to claim 6, characterized in that, The described circuit board (5) is arranged on the outer side of the cylindrical housing (22) by mounting screws. The cylindrical housing (22) has through holes (222) corresponding to the grating signal receiving module (51) and the outer side of the grating ring (41).

10. A grating structure motor induction device according to claim 6, characterized in that, The closed end (223) of the cylindrical housing (22) has an output hole (224). An output shaft (225) extending to the outer side of the cylindrical housing (22) is inserted into the output hole (224). One end of the output shaft (225) is connected to the center of the grating base (4) through a connecting seat (7). An output bearing (8) is provided between the connecting seat (7) and the closed end (223) of the cylindrical housing (22).

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