Coupling for motor with positioning and locking mechanism and pulping machine

Abstract

The utility model discloses a motor coupling with a positioning and locking mechanism and a pulping machine. The motor coupling comprises a shaft sleeve, and the shaft sleeve is provided with a three-stage through shaft hole; the three-stage through shaft hole comprises a fixing hole, a threaded hole and a shaft hole of which the diameters are sequentially increased; a shaft hole key groove is formed in the shaft hole in the axial direction, and a flat key is arranged in the shaft hole key groove in a sliding fit mode in the axial direction. The pulping machine comprises a pulping machine body, a motor of the pulping machine body is sleeved with a shaft hole of the coupler, the shaft hole of the coupler is connected with the motor of the pulping machine body through a flat key, a main shaft of the motor abuts against the lower end face of the hollow screw, and a separation frame of the pulping machine body is installed on the flange and fixedly connected with the flange in the mode that the screw penetrates through the screw fixing hole. The utility model has the advantages of quick adjustment, accurate positioning, lubrication protection, tight connection, optimal adjustment and the like, and can improve the working efficiency and the stability of the pulping machine and prolong the service life of the pulping machine.

Description

Technical Field

[0001] The utility model relates to a coupling, in particular to a coupling for a motor with a positioning and locking mechanism and a pulping machine. Background Art

[0002] In various mechanical equipment, motors, as one of the commonly used power sources, often need to be connected to other mechanical parts. As one of the connecting parts, couplings play a vital role in connecting motors with other parts. Traditional couplings are usually used for interference fit with the motor main shaft to connect and transmit rotational motion, but in some specific cases, the coupling is required to have positioning and locking functions to achieve fast and accurate adjustment functions. For example, in some mechanical equipment that requires precise positioning and stable locking, such as refiner equipment, traditional couplings are unable to meet the requirements of quickly and accurately adjusting the separation frame stop and the top stop of the grinding head shell up and down, resulting in friction noise between the stops when the refiner is in use.

[0003] Therefore, it is urgent to develop a new type of coupling for motors, which has the function of self-positioning and locking mechanism to ensure stable and reliable connection between the motor and other mechanical components while realizing fast and accurate adjustment function, so as to better meet the requirements of specific mechanical equipment for couplings. Utility Model Content

[0004] In order to solve the deficiencies existing in the above-mentioned technologies, the utility model provides a coupling for a motor and a pulping machine with a self-contained positioning and locking mechanism.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is a motor coupling with a self-contained positioning and locking mechanism, including a shaft sleeve, on which a three-level through shaft hole is opened;

[0006] The three-level through-shaft hole includes a fixing hole, a threaded hole and a shaft hole with successively increasing diameters;

[0007] A hollow screw is matched with the inner thread of the threaded hole, an axial hole keyway is provided in the axial direction, and a flat key is matched with the axial hole keyway in an axial sliding manner.

[0008] Furthermore, a magnet is embedded in the middle of the shaft hole keyway, and the outer end surface of the magnet is flush with the bottom surface of the shaft hole keyway.

[0009] Furthermore, the shaft hole is sleeved on the main shaft of the motor, and the flat key is fixedly arranged in the main shaft keyway opened on the main shaft.

[0010] Furthermore, a plurality of oil passages along the horizontal direction are provided in the shaft hole.

[0011] Furthermore, the fixing hole is a circular through hole, and the hole of the hollow screw is a circular through hole and a hexagon socket countersunk hole that are interconnected.

[0012] Furthermore, the diameter of the fixing hole is larger than the diameter of the hexagonal counterbore of the hollow screw.

[0013] Furthermore, a flange is connected to the side wall of the shaft sleeve, and a screw fixing hole is provided on the flange.

[0014] A pulping machine using a coupling for a motor with a self-contained positioning and locking mechanism as claimed in the claim, comprising a pulping machine body, an axial hole of the coupling sleeved on the motor of the pulping machine body, the axial hole of the coupling connected to the motor of the pulping machine body through a flat key, the main shaft of the motor abuts against the lower end surface of the hollow screw, and the separation frame of the pulping machine body is mounted on a flange and fixedly connected by screws passing through the screw fixing holes.

[0015] Furthermore, a plurality of top screws are spirally connected to the flange end cover of the motor, and the ends of the top screws can be spirally adjusted and abut against the lower end surface of the grinding head housing.

[0016] The utility model discloses a coupling and a refiner for a motor with a built-in positioning and locking mechanism, which has the following advantages: through the design of the fixing hole and the hollow screw, the upper and lower height positions of the hollow screw in the threaded hole can be quickly adjusted, so as to realize the rapid adjustment of the position of the separation frame and improve the work efficiency. The flat key is designed in the keyway of the shaft hole, and is fixed with the assistance of a magnet, so that the flat key and the keyway of the shaft hole can be firmly matched, ensuring the precise positioning of the separation frame and improving the assembly and adjustment accuracy. Through the design of the flange and the screw fixing hole, a close connection between the refiner body and the coupling is achieved, ensuring the stability and reliability of the equipment. Through the top screw on the motor flange end cover, the position of the grinding head housing can be fine-tuned, thereby realizing the optimal match with the separation frame and further improving the equipment performance of the refiner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the coupling.

[0018] Figure 2 This is a schematic diagram of the partial structure of the refiner.

[0019] Figure 3 This is a schematic diagram of the structure of the motor's main shaft.

[0020] Figure 4 A side view of a hollow screw.

[0021] Figure 5 A top view of a hollow screw.

[0022] In the figure: 1. Bushing; 2. Fixing hole; 3. Threaded hole; 4. Shaft hole; 5. Hollow screw; 6. Shaft hole keyway; 7. Flat key; 8. Magnet; 9. Spindle keyway; 10. Oil channel; 11. Flange; 12. Motor; 13. Separation frame; 14. Flange end cover; 15. Grinding head housing; 16. Top screw; 17. Fastening bolt; 18. Fastening bolt mounting hole. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-3 The motor coupling with a positioning and locking mechanism shown in the figure comprises a shaft sleeve 1, on which a three-level through-shaft hole is formed; the three-level through-shaft hole comprises a fixing hole 2, a threaded hole 3 and a shaft hole 4, the diameters of which increase successively; the inner thread of the threaded hole 3 is matched with a hollow screw 5, the threaded hole 3 is an inner thread, and the hollow screw 5 is an outer thread; wherein the fixing hole 2 is a circular through hole, and the hole of the hollow screw 5 is as follows Figure 4 and Figure 5 The circular through hole and hexagon socket countersunk hole are interconnected as shown, wherein the circular through hole of the hollow screw 5 is close to one side of the shaft hole 4, and the hexagon socket countersunk hole is close to one side of the fixing hole 2. The diameter of the hexagon socket countersunk hole of the hollow screw 5 is not less than the diameter of its circular through hole. In other embodiments, the hexagon socket countersunk hole can be replaced with a square countersunk hole. The diameter of the fixing hole 2 is set to be larger than the diameter of the hexagon socket countersunk hole of the hollow screw 5. The purpose is to adjust the upper and lower height positions of the hollow screw 5 in the threaded hole 3 by extending the wrench of the hollow screw 5 through the fixing hole 2. The design of the shaft hole 4 enables the coupling to fit tightly with the main shaft of the motor. A shaft hole keyway 6 is opened in the shaft hole 4 along the axial direction, and a flat key 7 is slidably matched in the shaft hole keyway 6 along the axial direction. When the shaft hole 4 is sleeved on the main shaft of the motor, the flat key 7 is fixedly set in the main shaft keyway 9 opened in the main shaft at the same time, and the coupling and the main shaft of the motor are key-matched through the flat key 7. In order to improve the fit between the flat key 7 and the shaft hole keyway 6, in one embodiment, a magnet 8 is embedded in the middle of the shaft hole keyway 6, and the outer end surface of the magnet 8 is flush with the bottom surface of the shaft hole keyway 6. It should be understood that in this case, the flat key 7 should be made of iron or an iron-containing alloy; in other embodiments, such as Figure 3 As shown, the magnet 8 can also be installed in a spindle keyway 9 on the spindle of the motor.

[0025] A plurality of oil passages 10 are provided in the shaft hole 4 in the horizontal direction. The oil passages 10 contain lubricating oil or grease, which can lubricate the main shaft and coupling of the motor, reduce friction on the main shaft and coupling, and extend the service life of the components.

[0026] The side wall of the sleeve 1 is connected with a flange 11, and the flange is provided with screw fixing holes 8. The arrangement of the flange enables the separation frame to be accurately mounted on the refiner body. Through the fixing of the screws, the refiner body and the coupling are tightly connected.

[0027] like Figure 2 The refiner uses the motor coupling with a positioning and locking mechanism of the utility model, including a refiner body, a coupling shaft hole 4 is sleeved on the motor of the refiner body, and a fastening bolt 17 passes through the three-stage through-shaft hole of the coupling and is fastened to the main shaft of the motor 12. Figure 3 On the fastening bolt mounting hole 18 shown, it should be noted that the fastening bolt 17 passes through the hollow screw at the same time, and the outer diameter of the fastening bolt 17 must be smaller than the inner diameter of the circular through-hole of the hollow screw. The shaft hole 4 of the coupling is connected to the motor of the refiner body through the flat key 7, and the main shaft of the motor 12 abuts against the lower end surface of the hollow screw 5. The separation frame 13 of the refiner body is mounted on the flange 11 and fixedly connected by screws passing through the screw fixing holes 8. A plurality of top screws 16 are spirally connected to the flange end cover 14 of the motor, and the ends of the top screws 16 can be spirally adjusted and abut against the lower end surface of the grinding head housing 15. By loosening and tightening the top screws 16, the position of the grinding head housing 15 can be fine-tuned to achieve an optimal fit with the stop of the separation frame.

[0028] In order to achieve the requirements of the upper and lower matching of the stop of the separation frame and the stop at the top of the grinding head shell quickly and accurately, the design idea of ​​the utility model is to extend a wrench matching the hollow screw 5 through the fixing hole 2 (the fastening bolt 17 needs to be removed in advance), and quickly adjust the upper and lower height positions of the hollow screw 5 in the threaded hole 3 in the hexagonal countersunk hole through the wrench. Rotate the hollow screw 5 to move up or down, thereby driving the adjustment of the upper and lower matching height of the stop of the separation frame and the stop at the top of the grinding head shell. In the process of the hollow screw 5 moving up or down, the flat key 7 slides in the shaft hole keyway 6. Since the flat key 7 is installed in the shaft hole keyway 6 and forms a match with the groove in the shaft hole keyway 6, the flat key 7 can slide along the axial direction. The flat key 7 is installed in the shaft hole keyway 6, so the flat key 7 will move relative to the movement of the shaft hole keyway 6, ensuring that the flat key 7 and the shaft hole keyway 6 maintain correct matching and will not be separated or rotated. A magnet 8 is embedded in the shaft hole keyway 6. The position of the magnet can fix the flat key 7 through magnetic attraction, improve the fit between the flat key 7 and the shaft hole keyway 6, and this design can make the flat key 7 more firmly fixed in the shaft hole keyway 6, which helps to accurately adjust the position of the separation frame. Through the screw fixing holes 8 on the flange 11, the separation frame 13 of the refiner body can be installed on the flange 11, and then the body is fixed by screws to ensure that the separation frame is tightly connected to the coupling. After the adjustment is completed, reinstall the fastening bolts 17 to achieve the positioning of the coupling.

[0029] Through the above design and adjustment method, the matching requirements of the stop of the separation frame and the top stop of the grinding head shell can be adjusted up and down quickly and accurately, ensuring the stable operation and working efficiency of the pulping machine.

[0030] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A motor coupling with a self-contained positioning and locking mechanism, characterized in that: It comprises a shaft sleeve (1), on which a three-level through shaft hole is formed; The three-level through-axis hole comprises a fixing hole (2), a threaded hole (3) and an axis hole (4) with diameters increasing successively; The threaded hole (3) is internally threaded with a hollow screw (5), an axial hole keyway (6) is axially provided in the axial hole (4), and a flat key (7) is axially slidably provided in the axial hole keyway (6).

2. The motor coupling with a self-contained positioning and locking mechanism according to claim 1, characterized in that: A magnet (8) is embedded in the middle of the shaft hole keyway (6), and the outer end surface of the magnet (8) is flush with the bottom surface of the shaft hole keyway (6).

3. The motor coupling with a self-contained positioning and locking mechanism according to claim 1, characterized in that: The shaft hole (4) is sleeved on the main shaft of the motor, and the flat key (7) is fixedly arranged in a main shaft keyway (9) provided on the main shaft.

4. The motor coupling with a self-contained positioning and locking mechanism according to claim 1, characterized in that: A plurality of oil passages (10) extending in a horizontal direction are provided in the shaft hole (4).

5. The motor coupling with a self-contained positioning and locking mechanism according to claim 1, characterized in that: The fixing hole (2) is a circular through hole, and the hole of the hollow screw (5) is a circular through hole and a hexagonal countersunk hole that are interconnected.

6. The motor coupling with a self-contained positioning and locking mechanism according to claim 5, characterized in that: The diameter of the fixing hole (2) is larger than the diameter of the hexagonal countersunk hole of the hollow screw (5).

7. The motor coupling with a self-contained positioning and locking mechanism according to claim 3, characterized in that: A flange (11) is connected to the side wall of the shaft sleeve (1), and a screw fixing hole is provided on the flange (11).

8. A refiner using the motor coupling with self-positioning and locking mechanism according to claim 7, comprising a refiner body, characterized in that: The shaft hole (4) of the coupling is sleeved on the motor of the pulping machine body, and the shaft hole (4) of the coupling is connected to the motor (12) of the pulping machine body through a flat key (7). The main shaft of the motor abuts against the lower end surface of the hollow screw (5). The separation frame (13) of the pulping machine body is installed on the flange (11) and is fixedly connected by screws passing through the screw fixing holes.

9. The refiner of the motor coupling with its own positioning and locking mechanism according to claim 8, characterized in that: A plurality of top screws (16) are spirally connected to the flange end cover (14) of the motor (12), and the ends of the top screws (16) can be spirally adjusted and abut against the lower end surface of the grinding head housing (15).

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