Grinding wheel transmission assembly for grinding machine

Abstract

The utility model discloses a grinding wheel transmission assembly for grinding machine, including grinding wheel transmission mechanism, grinding wheel main shaft and install to the grinding wheel on the grinding wheel main shaft grinding wheel, grinding wheel transmission mechanism is connected with the drive of grinding wheel main shaft, be provided with the conical portion on the grinding wheel main shaft, the conical portion is sleeved with the grinding wheel positioning sleeve, the grinding wheel main shaft is sleeved in the grinding wheel positioning sleeve outside, the one end of grinding wheel main shaft near the conical portion is provided with the outer thread portion, and the outer thread portion is threadedly connected with the compression ring, and the compression ring includes the presss from both sides and the tablet, and the presss from both sides and the tablet between pass through more than one set screw and lock and fix, and the one end surface of the tablet is with the one end surface of the grinding wheel positioning sleeve and abuts, and one side of the grinding wheel is provided with the inner recess platform, is provided with a gland in the inner recess platform, and the gland one end surface is provided with the limit platform that abuts with the one end surface of the grinding wheel positioning sleeve, and the limit platform and the grinding wheel positioning sleeve between pass through more than one locking screw and lock and fix.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding wheel transmission components for grinding machines, specifically a grinding wheel transmission component for grinding machines. Background Technology

[0002] Grinding wheels are generally used on grinding machines. When a grinding wheel is installed on a grinding machine, it is usually installed on the grinding wheel spindle. Then, the grinding wheel spindle is driven to rotate by a motor, which in turn drives the grinding wheel to rotate.

[0003] The existing method of installing grinding wheels usually involves mounting the grinding wheel on the grinding wheel spindle and then tightening it with a fixing nut. However, after long-term use, the contact surface between the fixing nut and the grinding wheel is prone to wear. Wear of the fixing nut can easily lead to instability of the grinding wheel, but directly replacing the fixing nut is costly. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding wheel transmission assembly for a grinding machine, so as to solve the problem mentioned in the background art that the contact surface between the existing grinding wheel fixing nut and the grinding wheel is prone to wear, the wear of the fixing nut can easily lead to the instability of the grinding wheel, but directly replacing the fixing nut is costly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding wheel transmission assembly for a grinding machine, comprising a grinding wheel transmission mechanism, a grinding wheel spindle, and a grinding wheel mounted on the grinding wheel spindle. The grinding wheel transmission mechanism is connected to the grinding wheel spindle in a transmission manner. The grinding wheel spindle is provided with a tapered portion, and a grinding wheel positioning sleeve is sleeved on the tapered portion. The grinding wheel spindle is sleeved outside the grinding wheel positioning sleeve. An external threaded portion is provided at one end of the grinding wheel spindle near the tapered portion. A pressure ring is threadedly connected to the external threaded portion. The pressure ring includes a pressure sleeve and a pressure plate. The pressure sleeve and the pressure plate are locked and fixed by one or more set screws. One end face of the pressure plate abuts against one end face of the grinding wheel positioning sleeve. An inner recess is provided on one side of the grinding wheel. A pressure cover is provided inside the inner recess, and a limiting platform is provided on one end face of the pressure cover, which abuts against one end face of the grinding wheel positioning sleeve. The limiting platform and the grinding wheel positioning sleeve are locked and fixed by one or more locking screws.

[0006] Furthermore, to facilitate subsequent assembly, the grinding wheel transmission mechanism includes a spindle support, a transmission motor, a main transmission wheel, an auxiliary transmission wheel, and a timing belt. The grinding wheel spindle is rotatably inserted into the spindle support, and the auxiliary transmission wheel is connected to the portion of the grinding wheel spindle that extends out of the spindle support. The transmission motor is fixed on a motor base, and the motor base is fixed above the spindle support. The output shaft of the transmission motor is connected to the main transmission wheel, and a timing belt is provided between the main transmission wheel and the auxiliary transmission wheel.

[0007] Furthermore, to enhance safety, the drive motor is fitted with a motor protective cover, and the back of the motor protective cover is provided with heat dissipation holes.

[0008] Furthermore, to improve safety, a belt protective cover is fitted between the main drive wheel and the auxiliary drive wheel.

[0009] Furthermore, to improve heat dissipation, a heat dissipation groove is provided above the spindle support and above the grinding wheel, and a grinding wheel avoidance notch is provided on the side of the spindle support to facilitate the extension of the grinding wheel.

[0010] Furthermore, a dust cover is provided on the end face of the pressure ring away from the grinding wheel positioning sleeve, which is fitted around the grinding wheel spindle, and a sealing ring is provided between the dust cover and the grinding wheel spindle.

[0011] Furthermore, to facilitate the replacement of the pressure plate later, the spindle support includes a connecting sleeve and an end cover. An opening is provided on one side of the connecting sleeve, and the end cover is fixed to the opening by one or more fixing screws. The end cover is close to the dust cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this structure, the end face of the grinding wheel is fitted with the pressure cap. After the pressure cap wears out, it can be directly replaced, which is lower in cost than the grinding wheel fixing nut. In order to improve the locking effect, the pressure ring is used to lock with the external thread on the grinding wheel spindle, which further improves the locking effect on the grinding wheel. At the same time, the pressure ring adopts a split structure. The pressure plate that abuts against one end face of the grinding wheel positioning sleeve is made of soft material, while the pressure sleeve is made of rigid material. If the pressure plate wears out, the pressure ring can be removed directly and the set screw can be removed to replace the pressure plate, which is convenient for users and has lower cost and better connection strength. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the combined structure of the grinding wheel spindle, grinding wheel, pressure ring, dust cover and pressure cap in this embodiment 1;

[0014] Figure 2 This is a schematic diagram of the separation structure of the grinding wheel spindle, grinding wheel, pressure ring, dust cover, and pressure cap in Example 1;

[0015] Figure 3 for Figure 2 Enlarged view of the combined structure of the intermediate pressure ring, dust cover, and pressure cap;

[0016] Figure 4 This is a schematic diagram of the structure of a grinding wheel drive assembly for a grinding machine in Example 1. Figure 1 ;

[0017] Figure 5 This is a schematic diagram of the structure of a grinding wheel drive assembly for a grinding machine in Example 1. Figure 2 ;

[0018] Figure 6 This is a schematic diagram of the structure of a grinding wheel transmission assembly for a grinding machine in Example 1 when the motor guard and belt guard are separated from other components.

[0019] In the diagram: 1. Grinding wheel drive mechanism; 2. Grinding wheel spindle; 3. Grinding wheel; 201. Tapered part; 11. Grinding wheel positioning sleeve; 4. External thread part; 5. Pressure ring; 501. Pressure sleeve; 502. Set screw; 503. Inner recess; 6. Pressure cover; 7. Locking screw; 8. Limiting platform; 9. Spindle support; 101. Drive motor; 102. Main drive wheel; 103. Auxiliary drive wheel; 104. Synchronous belt; 105. Motor base; 106. Motor protective cover; 107. Heat dissipation hole; 108. Belt protective cover; 109. Heat dissipation groove; 110. Grinding wheel clearance notch; 10. Dust cover; 12. Sealing ring; 13. Connecting sleeve; 1011. End cover; 1012. Fixing screw; 1013. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Example 1

[0023] Please see Figure 1-6 For ease of understanding, Figures 1-3The pressure ring, dust cover, and pressure cap are only shown in half-section view in the original diagram. In actual installation, the pressure ring, dust cover, and pressure cap are circular in shape. This utility model provides a grinding wheel transmission assembly for a grinding machine, including a grinding wheel transmission mechanism 1, a grinding wheel spindle 2, and a grinding wheel 3 mounted on the grinding wheel spindle 2. The grinding wheel transmission mechanism 1 is connected to the grinding wheel spindle 2. The grinding wheel spindle 2 is provided with a tapered part 201, and a grinding wheel positioning sleeve 11 is sleeved on the tapered part 201. The grinding wheel spindle 2 is sleeved outside the grinding wheel positioning sleeve 11. An external thread is provided on one end of the grinding wheel spindle 2 near the tapered part. The threaded part 4 is threadedly connected to a pressure ring 5. The pressure ring 5 includes a pressure sleeve 501 and a pressure plate 502. The pressure sleeve 501 and the pressure plate 502 are locked and fixed by one or more set screws 503. One end face of the pressure plate 502 abuts against one end face of the grinding wheel positioning sleeve 11. A concave platform 6 is provided on one side of the grinding wheel 3. A pressure cover 7 is provided in the concave platform 6. A limiting platform 9 is provided on one end face of the pressure cover 7, which abuts against one end face of the grinding wheel positioning sleeve 11. The limiting platform 9 and the grinding wheel positioning sleeve 11 are locked and fixed by one or more locking screws 8.

[0024] Furthermore, to facilitate subsequent assembly, the grinding wheel transmission mechanism 1 includes a spindle support 101, a transmission motor 102, a main transmission wheel 103, an auxiliary transmission wheel 104, and a synchronous belt 105. To further improve heat dissipation, a heat dissipation groove 110 is provided above the spindle support 101, located above the grinding wheel 3. A grinding wheel clearance notch 10 is provided on the side of the spindle support 101 to facilitate the extension of the grinding wheel 3. The grinding wheel spindle 2 is rotatably inserted into the spindle support 101, and the auxiliary transmission wheel 104 is connected to the portion of the grinding wheel spindle 2 extending out of the spindle support 101. The transmission motor 102 is fixed on a motor base 106. To improve safety... The transmission motor 102 is fitted with a motor protective cover 107. The back of the motor protective cover 107 is provided with heat dissipation holes 108. The addition of heat dissipation holes 108 improves heat dissipation and the motor protective cover 107 protects the transmission motor 102, further improving safety. The motor base 106 is fixed above the main shaft support 101, and the output shaft of the transmission motor 102 is connected to the main transmission wheel 103. A synchronous belt 105 is provided between the main transmission wheel 103 and the auxiliary transmission wheel 104, which also improves safety. A belt protective cover 109 is fitted between the main transmission wheel 103 and the auxiliary transmission wheel 104.

[0025] Furthermore, a dustproof sleeve 12 is provided on the end face of the pressure ring 5 away from the grinding wheel positioning sleeve 11, which is fitted outside the grinding wheel spindle 2. A sealing ring 13 is provided between the dustproof sleeve 12 and the grinding wheel spindle 2. The dustproof effect is improved by adding the dustproof sleeve 12.

[0026] Furthermore, to facilitate the replacement of the pressure plate 502 later, the main shaft support 101 includes a connecting sleeve 1011 and an end cover 1012. An opening is provided on one side of the connecting sleeve 1011, and the end cover 1012 is fixed to the opening by one or more fixing screws 1013. The end cover 1012 is close to the dust cover 12. Later, by removing the fixing screws 1013, the end cover 1012 can be removed from the side of the connecting sleeve 1011 to expose the dust cover 12. After removing the dust cover 12, the pressure sleeve 501 and the pressure plate 502 can be removed by loosening the pressure ring 5 and unscrewing all the set screws 503, so that the pressure plate 502 can be replaced.

[0027] In this structure, the grinding wheel positioning sleeve 11 is first fitted onto the tapered portion 201 to center the grinding wheel positioning sleeve 11. Then, the grinding wheel 3 is first fitted onto the grinding wheel positioning sleeve 11 to center the grinding wheel 3 and the grinding wheel spindle 2. A pressure cap 7 is then fitted over the grinding wheel spindle 2. One end face of the pressure cap 7 abuts against the inner recess 6 inside the grinding wheel spindle 2, and the limiting platform 9 on one end face of the pressure cap 7 abuts against the end face of the grinding wheel positioning sleeve 11. Finally, the pressure cap 7 and the grinding wheel positioning sleeve 11 are locked together using locking screws 8, thus fixing the grinding wheel 3. Therefore, in this structure, the end face of the grinding wheel 3 is fitted with the pressure cap 7. Later, when the pressure cap wears down... The pressure cap can be replaced directly, which is cheaper than the grinding wheel fixing nut. In order to improve the locking effect, the pressure ring 5 is locked with the external thread 4 on the grinding wheel spindle 2, which further improves the locking effect on the grinding wheel 3. At the same time, the pressure ring 5 adopts a split structure, with a pressure plate 502 that abuts against one end face of the grinding wheel positioning sleeve 11. The pressure plate 502 has a rigid internal skeleton and a soft wear-resistant material layer on the outside. The pressure sleeve 501 is made of rigid material. If the pressure plate 502 is worn, the pressure ring 5 can be removed directly and the set screw 503 can be removed to replace the pressure plate 502. This is convenient for users, and the cost is lower and the connection strength is better.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding wheel drive assembly for a grinding machine, comprising a grinding wheel drive mechanism (1), a grinding wheel spindle (2), and a grinding wheel (3) mounted on the grinding wheel spindle (2), wherein the grinding wheel drive mechanism (1) is drively connected to the grinding wheel spindle (2), characterized in that: The grinding wheel spindle (2) is provided with a tapered part (201), and a grinding wheel positioning sleeve (11) is sleeved on the tapered part (201). The grinding wheel spindle (2) is sleeved outside the grinding wheel positioning sleeve (11). An external thread part (4) is provided on one end of the grinding wheel spindle (2) near the tapered part. A pressure ring (5) is threadedly connected to the external thread part (4). The pressure ring (5) includes a pressure sleeve (501) and a pressure plate (502). The pressure sleeve (501) and the pressure plate (502) are connected by a... The above-mentioned set screws (503) are used for locking and fixing. One end face of the pressure plate (502) abuts against one end face of the grinding wheel positioning sleeve (11). A concave platform (6) is provided on one side of the grinding wheel (3). A pressure cover (7) is provided in the concave platform (6). A limiting platform (9) is provided on one end face of the pressure cover (7) and abuts against one end face of the grinding wheel positioning sleeve (11). The limiting platform (9) and the grinding wheel positioning sleeve (11) are locked and fixed by one or more locking screws (8).

2. The grinding wheel drive assembly for a grinding machine according to claim 1, characterized in that: The grinding wheel transmission mechanism (1) includes a spindle support (101), a transmission motor (102), a main transmission wheel (103), an auxiliary transmission wheel (104), and a synchronous belt (105). The grinding wheel spindle (2) is rotatably inserted into the spindle support (101), and the auxiliary transmission wheel (104) is connected after the grinding wheel spindle (2) extends out of the spindle support (101). The transmission motor (102) is fixed on the motor base (106), and the motor base (106) is fixed above the spindle support (101). The output shaft of the transmission motor (102) is connected to the main transmission wheel (103), and a synchronous belt (105) is provided between the main transmission wheel (103) and the auxiliary transmission wheel (104).

3. The grinding wheel drive assembly for a grinding machine according to claim 2, characterized in that: The drive motor (102) is covered with a motor protective cover (107), and the back of the motor protective cover (107) is provided with heat dissipation holes (108).

4. The grinding wheel drive assembly for a grinding machine according to claim 2, characterized in that: A belt guard (109) is fitted between the main drive wheel (103) and the auxiliary drive wheel (104).

5. The grinding wheel drive assembly for a grinding machine according to claim 2, characterized in that: The spindle support (101) is provided with a heat dissipation groove (110) located above the grinding wheel (3), and the side of the spindle support (101) is provided with a grinding wheel avoidance notch (10) to facilitate the extension of the grinding wheel (3).

6. The grinding wheel drive assembly for a grinding machine according to claim 2, characterized in that: The end face of the pressure ring (5) away from the grinding wheel positioning sleeve (11) is also provided with a dust cover (12) that is fitted outside the grinding wheel spindle (2), and a sealing ring (13) is provided between the dust cover (12) and the grinding wheel spindle (2).

7. The grinding wheel drive assembly for a grinding machine according to claim 6, characterized in that: The spindle support (101) includes a connecting sleeve (1011) and an end cap (1012). The connecting sleeve (1011) has an opening on one side, and the end cap (1012) is fixed to the opening by one or more fixing screws (1013). The end cap (1012) is close to the dust cover (12).

Images