A drum motor speed measuring encoder mounting structure

Abstract

The utility model provides a kind of drum motor speed encoder mounting structure, the drum motor speed encoder mounting structure includes main shaft, drum rotor, outer end cover fixed plate and encoder.The utility model drum motor includes main shaft and the drum rotor of rotation being set on main shaft, outer end cover is detachably installed at both ends of drum rotor, outer end cover will rotate along with drum rotor in the drum rotor rotation process.In main shaft detachably installed with fixed plate.Fixed plate is located the outside of one of outer end cover, and encoder is installed on fixed plate, and the speed measuring shaft of encoder is connected with outer end cover transmission, to calculate the rotating speed and the number of rotations of drum rotor can be obtained.And encoder is located the outside of outer end cover, and it is installed on main shaft by fixed plate.In later maintenance, maintenance, only need to disassemble end cover and fixed plate to maintain encoder and transmission component, convenient disassembly, installation and later operation and maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of motor monitoring technology, specifically relating to an installation structure for a speed encoder of a drum motor. Background Technology

[0002] Permanent magnet electric rollers, with their simple transmission structure, are widely used in conveyor systems. They are also gradually expanding into areas such as elevators and oil pumping units. In applications requiring reciprocating motion, such as elevators and oil pumping units, real-time monitoring of the roller's speed and rotation count is necessary. Therefore, a speed encoder needs to be added to the permanent magnet electric roller to calculate the roller's speed and rotation count. Encoders on conventional motors are typically connected to the motor shaft, calculating the motor's speed and rotation count by detecting the shaft's movement. However, in permanent magnet electric rollers, the motor shaft is fixed while the roller rotates. Encoders need to monitor the roller's rotational speed, and the large size of the roller makes encoder installation complex and inconvenient for later operation and maintenance. Utility Model Content

[0003] This utility model provides a roller motor speed encoder mounting structure, which aims to solve the problem that the mounting structure of the existing permanent magnet electric roller speed encoder is complex and inconvenient for later operation and maintenance.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a roller motor speed encoder mounting structure, comprising: spindle; A drum rotor is rotatably mounted on the main shaft; The outer end cover is detachably installed at the end of the drum rotor; A fixed plate is detachably mounted on the main shaft. An encoder is mounted on the fixed plate, and the speed measuring shaft of the encoder is connected to the outer end cover in a driving connection.

[0005] In one possible implementation, a toothed ring is fixedly mounted on the outer side of the outer end cover, the toothed ring is coaxially arranged with the roller rotor, and a gear that meshes with the toothed ring is drivenly connected to the speed measuring shaft of the encoder.

[0006] In one possible implementation, the end face of the outer end cap is recessed with a groove for avoiding the fixing plate, and the fixing plate is provided with a cavity for avoiding the toothed ring.

[0007] In one possible implementation, a mounting base is detachably mounted on the fixed plate, and a drive shaft is rotatably mounted on the mounting base. One end of the drive shaft is connected to the speed measuring shaft of the encoder, and the gear is fixedly mounted on the other end of the drive shaft.

[0008] In one possible implementation, an inner end cover is also fixedly installed on the drum rotor, and a bearing is provided between the main shaft and the drum rotor, with the outer ring of the bearing fixedly installed between the inner end cover and the outer end cover.

[0009] In one possible implementation, sealing rings connected to the spindle are installed on the inner walls of the inner end cover and the outer end cover.

[0010] In one possible implementation, the main shaft is provided with a limiting platform for limiting the movement of the fixing plate toward the outer end cover, and the main shaft is also equipped with a limiting member for pressing the outer end cover onto the limiting platform.

[0011] In one possible implementation, the drum rotor includes a cylinder and an end plate detachably mounted on the end of the cylinder, the end plate being rotatably disposed on the main shaft, and the outer end cover being detachably mounted on the end plate.

[0012] The solution shown in this application embodiment, compared with the prior art, includes a drum motor comprising a main shaft and a drum rotor rotatably mounted on the main shaft. Outer end covers are detachably mounted at both ends of the drum rotor, and these end covers rotate with the drum rotor during rotation. A fixing plate is detachably mounted on the main shaft and is fixedly connected to the main shaft when installed. The fixing plate is located outside one of the outer end covers, and an encoder is mounted on the fixing plate. The encoder's speed measuring shaft is drivenly connected to the outer end cover to monitor its rotational speed, thereby allowing the calculation of the drum rotor's rotational speed and number of revolutions. Furthermore, the encoder is located outside the outer end cover and is mounted on the main shaft via the fixing plate. During later maintenance and repair, only the end covers and fixing plate need to be disassembled for maintenance of the encoder and transmission components, facilitating disassembly, installation, and subsequent operation and maintenance. Attached Figure Description

[0013] Figure 1 A schematic diagram of the mounting structure of the roller motor speed encoder provided in this embodiment of the utility model; Figure 2 for Figure 1 A magnified view of part A in the middle.

[0014] Explanation of reference numerals in the attached figures: 1. Main shaft; 11. Limiting component; 2. Drum rotor; 21. Cylinder body; 22. End plate; 3. Outer end cover; 4. Fixing plate; 5. Encoder; 6. Gear ring; 7. Gear; 8. Mounting base; 81. Drive shaft; 9. Inner end cover; 10. Sealing ring. Detailed Implementation

[0015] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] Please refer to the following: Figure 1 and Figure 2 The installation structure of the roller motor speed encoder provided by this utility model is described below. The roller motor speed encoder installation structure includes a main shaft 1, a roller rotor 2, an outer end cover 3, and a fixing plate 4. The roller rotor 2 is rotatably mounted on the main shaft 1; the outer end cover 3 is detachably mounted on the end of the roller rotor 2; the fixing plate 4 is detachably mounted on the main shaft 1, and an encoder 5 is mounted on the fixing plate 4. The speed measuring shaft of the encoder 5 is connected to the outer end cover 3 in a driving connection.

[0017] The roller motor speed encoder mounting structure provided in this embodiment, compared with the prior art, includes a roller motor comprising a main shaft 1 and a roller rotor 2 rotatably mounted on the main shaft 1. Outer end covers 3 are detachably mounted on both ends of the roller rotor 2, and the outer end covers 3 rotate with the roller rotor 2 during rotation. A fixing plate 4 is detachably mounted on the main shaft 1, and is fixedly connected to the main shaft 1 when installed. The fixing plate 4 is located outside one of the outer end covers 3, and an encoder 5 is mounted on the fixing plate 4. The speed measuring shaft of the encoder 5 is connected to the outer end cover 3 for transmission, used to monitor the rotational speed of the outer end cover 3, thereby calculating the rotational speed and number of revolutions of the roller rotor 2. Furthermore, the encoder 5 is located outside the outer end cover 3 and is mounted on the main shaft 1 via the fixing plate 4. During later maintenance and repair, only the end covers and fixing plate 4 need to be removed to maintain the encoder 5 and transmission components, facilitating disassembly, installation, and subsequent operation and maintenance.

[0018] Specifically, in this application, an encoder 5 is installed on the outside of the outer end cover 3 of the drum motor. The speed of the drum rotor 2 is monitored by monitoring the rotation speed of the outer end cover 3, and the number of rotations of the drum rotor 2 can be calculated.

[0019] In some embodiments, the outer end cap 3 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2A gear ring 6 is fixedly installed on the outer side of the outer end cover 3. The gear ring 6 is coaxially arranged with the drum rotor 2. A gear 7, which meshes with the gear ring 6, is connected to the speed measuring shaft of the encoder 5. A protrusion for mounting the gear ring 6 is provided at the end of the outer end cover 3. The gear ring 6 is fitted onto the protrusion and fixed to the outer end cover 3 with bolts. The gear 7 is fixedly installed on the speed measuring shaft of the encoder 5 and meshes with the gear ring 6. When the outer end cover 3 rotates with the drum rotor 2, it can drive the gear ring 6 to rotate together. Through the meshing of the gear ring 6 and the gear 7, the encoder 5 can detect the speed and number of rotations of the drum rotor 2. In later maintenance, the fixing plate 4 can be removed separately to disassemble the encoder 5 for maintenance, or the outer end cover 3 and the fixing plate 4 can be removed together to maintain the entire monitoring system.

[0020] In some embodiments, the outer end cap 3 and the fixing plate 4 can be adopted as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2 The outer end cap 3 has a recessed groove on its end face to avoid the fixing plate 4, and the fixing plate 4 has a cavity to avoid the gear ring 6. The outer side of the fixing plate 4 is slidably disposed on the inner wall of the groove, and the gear ring 6 and the gear 7 are located between the groove and the cavity. This seals the gear ring 6 and the gear 7 between the fixing plate 4 and the outer end cap 3, thereby reducing dust and improving the service life of the gear ring 6 and the gear 7.

[0021] In some embodiments, the fixing plate 4 described above can be as follows: Figure 2 The structure shown. See also Figure 2 A mounting base 8 is detachably mounted on the fixing plate 4. A drive shaft 81 is rotatably mounted on the mounting base 8. One end of the drive shaft 81 is connected to the speed measuring shaft of the encoder 5, and the gear 7 is fixedly mounted on the other end of the drive shaft 81. The mounting base 8 is fixedly mounted on the fixing plate 4 by bolts, and the drive shaft 81 is rotatably mounted inside the mounting base 8 via bearings. Furthermore, the fixing plate 4 is provided with clearance to allow for the removal and installation of the gear 7. When it is necessary to replace or maintain the encoder 5, the mounting base 8 can be removed separately from the fixing plate 4 for maintenance, making the operation more convenient and efficient.

[0022] Specifically, in this embodiment, when removing the mounting base 8, the gear 7 can also be removed. This allows for the addition of lubricating oil during later maintenance by removing the mounting base 8 and applying it to the gear ring 6 and gear 7. The operation is more convenient and efficient.

[0023] In some embodiments, the roller rotor 2 described above may also employ, for example... Figure 1 The structure shown. See also Figure 1 An inner end cover 9 is fixedly installed on the roller rotor 2. A bearing is provided between the main shaft 1 and the roller rotor 2, and the outer ring of the bearing is fixedly installed between the inner end cover 9 and the outer end cover 3. The inner end cover 9 is located on the inner side of the roller rotor 2, and the outer end cover 3 is located on the outer side of the roller rotor 2. The inner end cover 9 and the outer end cover 3 are fixedly connected by bolts. A threaded hole for installing bolts is provided on the inner end cover 9. The bolts pass through the outer end cover 3 and the end side wall of the roller rotor 2, so that the outer ring of the bearing can be tightened between the inner end cover 9 and the outer end cover 3.

[0024] Specifically, in this embodiment, both the inner end cover 9 and the outer end cover 3 are provided with protruding rings for pressing against the outer ring of the bearing. The protruding rings press against the end face of the outer ring of the bearing to achieve the fixation between the outer ring of the bearing and the drum rotor 2.

[0025] In some embodiments, the inner end cap 9 and the outer end cap 3 can be connected by a method such as Figure 1 The structure shown. See also Figure 1 A sealing ring 10, which is connected to the main shaft 1, is installed on the inner wall of the inner end cover 9 and the outer end cover 3. Both the inner end cover 9 and the outer end cover 3 have mounting grooves for installing the sealing ring 10. The sealing ring 10 is installed inside the mounting groove, and the inner ring of the sealing ring 10 abuts against the outer wall of the main shaft 1, achieving a seal between the bearing and the outside environment, preventing dust from damaging the bearing and affecting its service life.

[0026] In some embodiments, the spindle 1 described above can be as follows: Figure 1 The structure shown. See also Figure 1 The main shaft 1 is provided with a limiting platform for limiting the movement of the fixing plate 4 toward the outer end cover 3. The main shaft 1 is also equipped with a limiting member 11 for pressing the outer end cover 3 onto the limiting platform. The fixing plate 4 is provided with a guide hole that slides with the main shaft 1, so that the fixing plate 4 can be installed onto the main shaft 1 from one end, and the fixing plate 4 is pressed onto the limiting platform by the limiting member 11, thereby fixing the fixing plate 4.

[0027] Specifically, in this embodiment, anti-rotation keyways are provided on both the fixing plate 4 and the limiting member 11, and corresponding anti-rotation keyways are provided on the spindle 1, so that anti-rotation keys can be installed to prevent the fixing plate 4 and the limiting member 11 from rotating relative to the spindle 1.

[0028] Specifically, in this embodiment, the limiting platform is a support leg used to fix the spindle 1. When fixing the spindle 1, the fixing plate 4 can be fixed to the spindle 1.

[0029] Specifically, in this embodiment, the spindle 1 and the limiting member 11 are interference fit, which can ensure the stability of the position of the limiting member 11 after it is installed on the spindle 1.

[0030] In some embodiments, the roller rotor 2 described above may employ, as follows: Figure 1 The structure shown. See also Figure 1 The drum rotor 2 includes a cylinder 21 and an end plate 22 detachably mounted on the end of the cylinder 21. The end plate 22 is rotatably mounted on the main shaft 1, and the outer end cover 3 is detachably mounted on the end plate 22. The end plate 22 is bolted to both ends of the cylinder 21. Positioning grooves for mounting the cylinder 21 are provided on the end plate 22, thereby positioning the relative position of the end plate 22 and the cylinder 21. The end plate 22 is rotatably mounted on the main shaft 1 via bearings. The outer end cover 3 and the inner end cover 9 are detachably mounted on the end plate 22 via bolts. The detachable connection between the end plate 22 and the cylinder 21 facilitates subsequent maintenance of the bearings and the interior of the drum rotor 2.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting structure for a roller motor speed encoder, characterized in that, include: Main spindle (1); The drum rotor (2) is rotatably mounted on the main shaft (1); The outer end cover (3) is detachably installed at the end of the drum rotor (2); A fixed plate (4) is detachably mounted on the main shaft (1). An encoder (5) is mounted on the fixed plate (4). The speed measuring shaft of the encoder (5) is connected to the outer end cover (3) in a transmission connection.

2. The roller motor speed encoder mounting structure as described in claim 1, characterized in that, A toothed ring (6) is fixedly installed on the outer side of the outer end cover (3). The toothed ring (6) is coaxially arranged with the roller rotor (2). A gear (7) that meshes with the toothed ring (6) is connected to the speed measuring shaft of the encoder (5).

3. The roller motor speed encoder mounting structure as described in claim 2, characterized in that, The end face of the outer end cap (3) is recessed with a groove for avoiding the fixing plate (4), and the fixing plate (4) is provided with a cavity for avoiding the toothed ring (6).

4. The roller motor speed encoder mounting structure as described in claim 2, characterized in that, A mounting base (8) is detachably mounted on the fixed plate (4). A transmission shaft (81) is rotatably mounted on the mounting base (8). One end of the transmission shaft (81) is connected to the speed measuring shaft of the encoder (5). The gear (7) is fixedly mounted on the other end of the transmission shaft (81).

5. The roller motor speed encoder mounting structure as described in claim 1, characterized in that, An inner end cover (9) is also fixedly installed on the drum rotor (2). A bearing is provided between the main shaft (1) and the drum rotor (2). The outer ring of the bearing is fixedly installed between the inner end cover (9) and the outer end cover (3).

6. The roller motor speed encoder mounting structure as described in claim 5, characterized in that, A sealing ring (10) connected to the main shaft (1) is installed on the inner wall of the inner end cover (9) and the outer end cover (3).

7. The roller motor speed encoder mounting structure as described in claim 1, characterized in that, The main shaft (1) is provided with a limiting platform for limiting the movement of the fixing plate (4) toward the outer end cover (3), and the main shaft (1) is also provided with a limiting member (11) for pressing the outer end cover (3) onto the limiting platform.

8. The roller motor speed encoder mounting structure as described in claim 1, characterized in that, The drum rotor (2) includes a cylinder (21) and an end plate (22) detachably mounted on the end of the cylinder (21). The end plate (22) is rotatably mounted on the main shaft (1), and the outer end cover (3) is detachably mounted on the end plate (22).

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