Transmission gear of point mill

Abstract

The utility model relates to the technical field of point mills, and discloses a transmission gear of a point mill, which comprises a transmission shaft, an auxiliary oblique bevel gear is sleeved outside the transmission shaft, a main oblique bevel gear is meshed and connected onto the auxiliary oblique bevel gear, a fixing component comprises a cavity arranged inside the transmission shaft, a movable plate is movably connected inside the cavity, and the main oblique bevel gear is meshed with the movable plate. The top of the movable plate is rotationally connected with a lead screw, the top end of the lead screw extends to the outside of the transmission shaft and is in threaded connection with the transmission shaft, clamping blocks are symmetrically and movably arranged at the bottom of an inner cavity of the cavity, and connecting rods are hinged between the clamping blocks and the movable plate through hinge pieces. According to the transmission shaft, the problem that the normal transmission between the gears is affected due to the fact that the gears are difficult to fix and the gears are easy to move upwards outside the transmission shaft is effectively avoided, the stable transmission between the gears is ensured, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of point grinders, in particular to a transmission gear of a point grinder. Background Technique

[0002] A point grinder is a high-precision equipment that can perform precision grinding on various materials and is widely used in fields such as mechanical manufacturing, electronic component processing, metal materials, and new material processing. When a point grinder operates, it usually needs to use a special transmission gear for transmission.

[0003] The existing transmission gears of point grinders are generally directly sleeved outside the transmission shaft. Due to the lack of an integrated structure that can fix the transmission gear, the transmission gear is prone to upward movement outside the transmission shaft, thus affecting the normal transmission between gears. Therefore, we provide a transmission gear for a point grinder. Summary of the Utility Model

[0004] To solve the problem in the above background technique that it is difficult to fix the gear, resulting in the gear being prone to upward movement outside the transmission shaft, thus affecting the normal transmission between gears, the utility model provides a transmission gear for a point grinder.

[0005] The utility model is implemented by the following technical solutions: A transmission gear for a point grinder, comprising:

[0006] A transmission shaft, a secondary bevel gear is sleeved outside the transmission shaft, and a primary bevel gear is meshed with the secondary bevel gear;

[0007] A fixing component, the fixing component includes a cavity opened inside the transmission shaft, a movable plate is movably connected inside the cavity, a lead screw is rotatably connected to the top of the movable plate and the top end of the lead screw extends outside the transmission shaft and is threadedly connected to the transmission shaft, clamping blocks are symmetrically and movably arranged at the bottom of the inner cavity of the cavity, a connecting rod is hinged between the clamping block and the movable plate through a hinge member, and a clamping groove is opened at the position corresponding to the clamping block on the inner side surface of the secondary bevel gear.

[0008] As a further improvement of the above solution, positioning strips are fixedly connected to the outside of the transmission shaft at equal intervals in the circumferential direction, positioning grooves are opened at the positions corresponding to the positioning strips on the inner side surface of the secondary bevel gear and are slidably connected with the positioning strips.

[0009] As a further improvement of the above solution, guide blocks one are fixedly connected to both sides of the movable plate, and guide grooves one are opened at the positions corresponding to the guide blocks one on the inner wall of the cavity and are slidably connected with the guide blocks one.

[0010] As a further improvement of the above solution, a second guiding block is fixedly connected to the bottom of the clamping block, and second guiding grooves are symmetrically formed at the bottom of the inner cavity of the cavity. The second guiding grooves are slidably connected to the second guiding blocks on the same side.

[0011] As a further improvement of the above solution, moving grooves are formed on both sides of the transmission shaft, and the moving grooves communicate with the cavity.

[0012] As a further improvement of the above solution, the cross-sectional area of the clamping block matches the cross-sectional area of the clamping groove.

[0013] As a further improvement of the above solution, a knob is coaxially and fixedly connected to the top end of the lead screw, and the diameter of the knob is smaller than the diameter of the transmission shaft.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] After the secondary bevel gear is sleeved outside the transmission shaft in the present utility model, by rotating the lead screw, the movable plate is driven to vertically move downward. Under the hinge action between the movable plate, the clamping block and the connecting rod, and the sliding fit between the second guiding block and the second guiding groove, the two clamping blocks can be respectively pushed to move towards both sides. When the clamping block moves out of the moving groove and enters the clamping groove, the fixation of the secondary bevel gear can be achieved. The operation is simple, convenient and fast, effectively avoiding the problem that the gear is difficult to be fixed, resulting in the gear being prone to upward movement outside the transmission shaft, thus affecting the normal transmission between the gears, ensuring the stable transmission between the gears, and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of the transmission shaft of the present utility model;

[0018] Figure 3 is a longitudinal-sectional three-dimensional structural schematic diagram of the transmission shaft of the present utility model;

[0019] Figure 4 is a three-dimensional structural schematic diagram of the secondary bevel gear of the present utility model.

[0020] MAIN SYMBOL DESCRIPTION:

[0021] 1. Transmission shaft; 2. Secondary bevel gear; 3. Main bevel gear; 4. Positioning strip; 5. Positioning groove; 101. Movable plate; 102. Lead screw; 103. Clamping block; 104. Connecting rod; 105. Clamping groove; 106. First guiding block; 107. Knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of non-conflict, any combination can be formed between the following-described embodiments or between the technical features to form a new embodiment. Embodiment 1

[0023] Please refer to Figures 1-4 , a transmission gear of a point grinding machine in this embodiment includes:

[0024] A transmission shaft 1, an auxiliary bevel gear 2 is sleeved outside the transmission shaft 1, a main bevel gear 3 is meshed and connected to the auxiliary bevel gear 2, positioning strips 4 are fixedly connected to the outside of the transmission shaft 1 at equal intervals in the circumferential direction, positioning grooves 5 are opened at positions corresponding to the positioning strips 4 on the inner side surface of the auxiliary bevel gear 2 and are slidably connected with the positioning strips 4, which is not only convenient for positioning when installing the auxiliary bevel gear 2, but also can ensure the normal transmission of the auxiliary bevel gear 2;

[0025] A fixing component, the fixing component includes a cavity opened inside the transmission shaft 1, a movable plate 101 is movably connected inside the cavity, a lead screw 102 is rotatably connected to the top of the movable plate 101 and the top end of the lead screw 102 extends outside the transmission shaft 1 and is threadedly connected with the transmission shaft 1, clamping blocks 103 are symmetrically and movably arranged at the bottom of the inner cavity of the cavity, a connecting rod 104 is hinged between the clamping blocks 103 and the movable plate 101 through a hinge, a clamping groove 105 is opened at a position corresponding to the clamping block 103 on the inner side surface of the auxiliary bevel gear 2, guide blocks one 106 are fixedly connected to both sides of the movable plate 101, and guide grooves one are opened at positions corresponding to the guide blocks one 106 on the inner wall of the cavity and are slidably connected with the guide blocks one 106, which can play a certain guiding role in the vertical movement of the movable plate 101, a guide block two is fixedly connected to the bottom of the clamping block 103, and guide grooves two are symmetrically opened at the bottom of the inner cavity of the cavity and are slidably connected with the guide block two on the same side, which can play a certain guiding role in the horizontal movement of the clamping block 103, moving grooves are opened on both sides of the transmission shaft 1 and the moving grooves are communicated with the cavity, which is convenient for pushing the clamping block 103 into the clamping groove 105, and the cross-sectional area of the clamping block 103 matches the cross-sectional area of the clamping groove 105.

[0026] The implementation principle of a point grinding machine drive gear in the embodiment of the present application is as follows: First, keep the card slot 105 on the secondary bevel gear 2 on the same side as the moving slot on the drive shaft 1. Then, sleeved the secondary bevel gear 2 outside the drive shaft 1. After the card slot 105 and the moving slot are aligned, rotate the lead screw 102. Through the sliding fit between the guide block 106 and the first guide slot, it can be pushed to vertically move down the movable plate 101. And under the hinge action between the movable plate 101, the clamping block 103 and the connecting rod 104, and the sliding fit between the second guide block and the second guide slot, it can be pushed to move the two clamping blocks 103 to both sides respectively. When the clamping block 103 moves out of the moving slot and into the card slot 105, the fixation of the secondary bevel gear 2 can be achieved, effectively avoiding the problem that the gear is easily displaced upward outside the drive shaft 1 due to the difficulty of fixing the gear, thus affecting the normal transmission between the gears, and ensuring the stable transmission between the gears. When it is necessary to disassemble the secondary bevel gear 2, just reverse the rotation of the lead screw 102 to drive the two clamping blocks 103 to safely move back into the moving slot. Embodiment 2

[0027] Based on Embodiment 1, a further improvement in this embodiment is that: the top end of the lead screw 102 is coaxially fixedly connected with a knob 107, and the diameter of the knob 107 is smaller than the diameter of the drive shaft 1, so as to avoid affecting the normal sleeving of the secondary bevel gear 2.

[0028] The above-mentioned implementation manners are only the preferred implementation manners of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A drive gear for a point grinder, characterized in that, Comprising: A transmission shaft (1), an auxiliary bevel gear (2) is sleeved outside the transmission shaft (1), and a main bevel gear (3) is meshed and connected to the auxiliary bevel gear (2); A fixing component, the fixing component includes a cavity opened inside the transmission shaft (1), a movable plate (101) is movably connected inside the cavity, a lead screw (102) is rotatably connected to the top of the movable plate (101), and the top end of the lead screw (102) extends outside the transmission shaft (1) and is threadedly connected to the transmission shaft (1), clamping blocks (103) are symmetrically and movably arranged at the bottom of the inner cavity of the cavity, a connecting rod (104) is hinged between the clamping block (103) and the movable plate (101) through a hinge member, and a clamping groove (105) is opened on the inner side surface of the auxiliary bevel gear (2) corresponding to the position of the clamping block (103).

2. The transmission gear of a point grinder according to claim 1, characterized in that, Positioning strips (4) are fixedly connected to the outside of the transmission shaft (1) at equal intervals in the circumferential direction, a positioning groove (5) is opened on the inner side surface of the auxiliary bevel gear (2) corresponding to the position of the positioning strip (4), and the positioning strip (4) is slidably connected therewith.

3. A drive gear of a point grinder according to claim 1, characterized in that, Guide blocks one (106) are fixedly connected to both sides of the movable plate (101), and a guide groove one is opened on the inner wall of the cavity corresponding to the position of the guide block one (106) and is slidably connected to the guide block one (106).

4. A drive gear of a point grinder as described in claim 1, characterized in that, A guide block two is fixedly connected to the bottom of the clamping block (103), and guide grooves two are symmetrically opened at the bottom of the inner cavity of the cavity, and the guide grooves two are slidably connected to the guide block two on the same side.

5. A drive gear of a point grinder according to claim 1, characterized in that, Moving grooves are opened on both sides of the transmission shaft (1), and the moving grooves are communicated with the cavity.

6. A driving gear of a point grinder as described in claim 1, characterized in that, The cross-sectional area of the clamping block (103) is matched with the cross-sectional area of the clamping groove (105).

7. A transmission gear of a point grinder according to claim 1, characterized in that, A knob (107) is coaxially fixedly connected to the top end of the lead screw (102), and the diameter of the knob (107) is smaller than the diameter of the transmission shaft (1).

Images