Gear shaft with self-locking function

Abstract

A gear shaft with a self-locking function belongs to the technical field of self-locking gear shaft instruments and is characterized by comprising a gear main shaft and a transmission gear inserted in the side surface of the gear main shaft, and connecting devices are inserted in the circle centers of the left side surface and the right side surface of the gear main shaft respectively. A locking jackscrew is inserted in the middle of the front portion of the side surface of the connecting device in a penetrating mode, a locking device is inserted in the outer edge of the side surface of the connecting device, a connecting flange is fixedly inserted in the outer edge of the side surface of the locking device, and a plurality of connecting bolts are evenly distributed and inserted in the peripheral edge of the inner side surface of the connecting flange. The gear shaft can be locked at the moment of reverse rotation of the gear shaft, the situation that a gear on the gear shaft is damaged due to the fact that the reverse rotation time of the gear shaft is too long is prevented, and a worker can finish the gear shaft without manual operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of self-locking gear shaft devices, specifically relating to a gear shaft with a self-locking function. Background Technology

[0002] Existing gear shafts with self-locking functions require a long time to lock when the gear shaft reverses. Unlocking requires the use of auxiliary tools and takes a lot of time, making them inconvenient for operators. Utility Model Content

[0003] The purpose of this invention is to lock the gear shaft the instant it reverses, preventing damage to the gears on the shaft due to prolonged reversal. Furthermore, it allows for operation without manual intervention, simplifying operation and improving safety. The technical solution is as follows:

[0004] A gear shaft with a self-locking function, characterized in that: it includes a gear spindle 1 and a transmission gear 2 inserted into the side surface of the gear spindle 1; a connecting device 3 is inserted at the center of each of the left and right side surfaces of the gear spindle 1; a locking screw 4 is inserted through the center of the front of the side surface of the connecting device 3; a locking device 5 is inserted at the outer edge of the side surface of the connecting device 3; a connecting flange 6 is fixedly inserted at the outer edge of the side surface of the locking device 5; and a plurality of connecting bolts 7 are evenly distributed around the four edges of the inner surface of the connecting flange 6. The gear spindle 1 includes... The device includes a rotating shaft 1-1, a retaining strip 1-2, a retaining block 1-3, and a threaded opening 1-4. The retaining strip 1-2 is connected to the center of the upper part of the side surface of the rotating shaft 1-1. Retaining blocks 1-3 are symmetrically connected to the centers of the left and right side surfaces of the rotating shaft 1-1. Each retaining block 1-3 has a threaded opening 1-4 in the center of its front surface. The transmission gear 2 is inserted into the side surface of the rotating shaft 1-1, and the retaining strip 1-2 is engaged inside the transmission gear 2. The retaining blocks 1-3 are cubical. The connecting device 3 includes a sleeve 3-1, a turntable 3-2, a support block 3-3, and an outer disc 3-4. A turntable 3-2 is connected to the center of the outer surface of the sleeve 3-1. Several support blocks 3-3 are evenly distributed around the outer surface of the turntable 3-2. An outer disc 3-4 is connected to the center of the outer surface of the turntable 3-2. A slot is provided at the center of the inner surface of the sleeve 3-1. The locking block 1-3 is inserted into the slot. The locking screw 4 penetrates the sleeve 3-1 and contacts the front surface of the locking block 1-3. The size of the locking block 1-3 matches the size of the slot. The locking device 5 includes a chuck 5-1, a countersunk hole 5-2, and a locking block 5-4. -3 and spring piece 5-4, the inner surface of the chuck 5-1 is provided with a countersunk hole 5-2 at the center, and a number of locking blocks 5-3 are evenly distributed and inserted at the inner edge of the side surface of the countersunk hole 5-2. Each locking block 5-3 is connected to the chuck 5-1 by a spring piece 5-4. The turntable 3-2 and the outer plate 3-4 are inserted into the countersunk hole 5-2. The outer plate 3-4 and the countersunk hole 5-2 are connected to each other by a bearing. The locking block 5-3 and the support block 3-3 are fan-shaped, and the vertical surface of the locking block 5-3 is arranged opposite to the vertical surface of the support block 3-3.

[0005] The advantages of this utility model are: the gear shaft can be locked the instant it reverses, preventing damage to the gears on the gear shaft due to excessive reversal time, and the gear shaft can be operated without manual intervention, which is convenient for staff and improves safety. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the gear spindle 1 of this utility model;

[0008] Figure 3 This is a schematic diagram of the connecting device 3 of this utility model;

[0009] Figure 4 This is a schematic diagram of the locking device 5 of this utility model;

[0010] In the diagram: 1. Gear spindle, 2. Transmission gear, 3. Connecting device, 4. Locking screw, 5. Locking device, 6. Connecting flange, 7. Connecting bolt, 1-1. Rotating shaft, 1-2. Clamping strip, 1-3. Threaded end, 1-4. Sleeve, 3-1. Turntable, 3-2. Support block, 3-3. Outer disc, 3-4. Chuck, 5-1. Countersunk hole, 5-2. Locking block, 5-3. Spring piece, 5-4. Detailed Implementation

[0011] Reference Figures 1-4 The gear shaft with self-locking function is characterized in that: it includes a gear spindle 1 and a transmission gear 2 inserted on the side surface of the gear spindle 1; a connecting device 3 is inserted at the center of each of the left and right side surfaces of the gear spindle 1; a locking screw 4 is inserted through the middle of the front of the side surface of the connecting device 3; a locking device 5 is inserted at the outer edge of the side surface of the connecting device 3; a connecting flange 6 is fixedly inserted at the outer edge of the side surface of the locking device 5; and a plurality of connecting bolts 7 are evenly distributed around the four edges of the inner surface of the connecting flange 6.

[0012] In use, first insert the transmission gear 2 onto the side surface of the gear spindle 1, then insert the gear spindle 1 onto the side surface of the connecting device 3 and fix it with the locking screw 4. Then place the transmission gear 1 in the gearbox and make the connecting flange 6 contact the side surface of the gearbox. At the same time, the transmission gear 1 meshes with the rotating gear. Then, tighten the connecting bolt 7 through the connecting flange 6 onto the gearbox. Then start the rotating gear to rotate and drive the gear spindle 1 to rotate through the transmission gear 2. At the same time, the gear spindle 1 drives the connecting device 3 to rotate in the locking device 5.

[0013] Furthermore, the gear spindle 1 includes a rotating shaft 1-1, a retaining strip 1-2, a retaining block 1-3, and a threaded opening 1-4. The retaining strip 1-2 is connected to the middle of the upper part of the side surface of the rotating shaft 1-1. The retaining blocks 1-3 are symmetrically connected to the center of the left and right side surfaces of the rotating shaft 1-1. Each retaining block 1-3 has a threaded opening 1-4 in the middle of its front surface. The transmission gear 2 is inserted into the side surface of the rotating shaft 1-1, and the retaining strip 1-2 is locked inside the transmission gear 2. The retaining block 1-3 is cubic.

[0014] In use, insert the transmission gear 2 onto the rotating shaft 1-1, while simultaneously locking the clip 1-2 inside the transmission gear 2. Then, insert the clip 1-3 into the inner surface of the connecting device 3. Finally, tighten the locking screw 4 through the connecting device 3 into the threaded opening 1-4 to fix the rotating shaft 1-1 onto the connecting device 3.

[0015] Furthermore, the connecting device 3 includes a sleeve 3-1, a turntable 3-2, a support block 3-3, and an outer plate 3-4. The turntable 3-2 is connected to the center of the outer surface of the sleeve 3-1. Several support blocks 3-3 are evenly distributed around the outer surface of the turntable 3-2. The outer plate 3-4 is connected to the center of the outer surface of the turntable 3-2. A slot is provided at the center of the inner surface of the sleeve 3-1. The locking block 1-3 is inserted into the slot. The locking screw 4 penetrates the sleeve 3-1 and contacts the front surface of the locking block 1-3. The size of the locking block 1-3 matches the size of the slot.

[0016] In use, the rotating shaft 1-1 drives the turntable 3-2 and the outer disk 3-4 to rotate in the positive direction within the locking device 5 through the sleeve 3-1. When the rotating shaft 1-1 rotates in the reverse direction, the support block 3-3 is fan-shaped and gets stuck in the locking device 5. In this way, the locking block 3-3 is locked and stops the rotating shaft 1-1 from rotating at the moment the rotating shaft 1-1 rotates in the reverse direction.

[0017] Furthermore, the locking device 5 includes a chuck 5-1, a countersunk hole 5-2, a locking block 5-3, and a spring piece 5-4. The countersunk hole 5-2 is provided at the center of the inner surface of the chuck 5-1. Several locking blocks 5-3 are evenly distributed and inserted at the inner edge of the side surface of the countersunk hole 5-2. Each locking block 5-3 is connected to the chuck 5-1 by a spring piece 5-4. The turntable 3-2 and the outer disc 3-4 are inserted into the countersunk hole 5-2. The outer disc 3-4 and the countersunk hole 5-2 are connected to each other by a bearing. The locking block 5-3 and the support block 3-3 are fan-shaped, and the vertical surface of the locking block 5-3 is arranged opposite to the vertical surface of the support block 3-3.

[0018] In use, the turntable 3-2 and the outer plate 3-4 rotate within the countersunk hole 5-2. Simultaneously, since the locking block 5-3 and the latching block 3-3 have the same shape and are positioned opposite each other, when the turntable 3-2 rotates forward, the arc surfaces of the locking block 5-3 and the latching block 3-3 come into contact. At the same time, the latching block 3-3 pushes the locking block 5-3, inserting it into the inner surface of the countersunk hole 5-2. When the latching block 3-3 separates from the locking block 5-3, the spring piece 5-4 pushes the locking block 5-3 to extend it out, without affecting the forward rotation of the turntable 3-2. When the rotating shaft 1-1 rotates in the reverse direction, the surface of the locking block 5-3 comes into contact with the surface of the latching block 3-3, causing the locking block 5-3 to latch the latching block 3-3 and simultaneously locking the rotating shaft 1-1 to prevent it from rotating in the reverse direction.

[0019] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A gear shaft with self-locking function, characterized in that: The utility model provides a gear spindle (1) and transmission gear (2) are inserted on the side surface of gear spindle (1), the left and right side surface center of gear spindle (1) inserts the connecting device (3) respectively, the front middle part of connecting device (3) side surface penetrates and inserts locking jacks (4), the outer edge of connecting device (3) side surface inserts locking device (5), the outer edge of locking device (5) side surface fixedly inserts the connecting flange (6), the inner side surface four circumferential edges of connecting flange (6) evenly distributes and inserts a plurality of connecting bolts (7).

2. The gear shaft with self-locking function according to claim 1, characterized in that: The gear spindle (1) includes a rotating shaft (1-1), a clamping strip (1-2), a clamping block (1-3), and a threaded hole (1-4), the clamping strip (1-2) is connected to the upper middle part of the side surface of the rotating shaft (1-1), the clamping block (1-3) is symmetrically connected to the left and right side surfaces of the rotating shaft (1-1), each clamping block (1-3) is provided with a threaded hole (1-4) in the middle of the front surface, the transmission gear (2) is inserted into the side surface of the rotating shaft (1-1), and the clamping strip (1-2) is clamped inside the transmission gear (2), and the clamping block (1-3) is a cube.

3. The gear shaft with self-locking function according to claim 2, characterized in that: The connecting device (3) includes a sleeve (3-1), a rotating disc (3-2), a supporting block (3-3), and an outer disc (3-4), the rotating disc (3-2) is connected to the outer side surface center of the sleeve (3-1), a plurality of supporting blocks (3-3) are evenly distributed and connected to the outer side surface of the rotating disc (3-2), the outer disc (3-4) is connected to the outer side surface center of the rotating disc (3-2), a slot is provided in the inner side surface center of the sleeve (3-1), the clamping block (1-3) is inserted into the slot, the locking jacks (4) penetrate the sleeve (3-1) and contact the front surface of the clamping block (1-3), and the size of the clamping block (1-3) is matched with the size of the slot.

4. The gear shaft with self-locking function according to claim 3, characterized in that: The locking device (5) includes a chuck (5-1), a counterbore (5-2), a locking block (5-3), and a spring piece (5-4), the counterbore (5-2) is provided in the inner side surface center of the chuck (5-1), a plurality of locking blocks (5-3) are evenly inserted into the inner side edge of the side surface of the counterbore (5-2), each locking block (5-3) is connected with the spring piece (5-4) between the chuck (5-1), the rotating disc (3-2) and the outer disc (3-4) are inserted into the counterbore (5-2), the outer disc (3-4) and the counterbore (5-2) are connected by bearings, the locking block (5-3) and the supporting block (3-3) are in a fan shape, and the vertical surface of the locking block (5-3) is arranged opposite to the vertical surface of the supporting block (3-3).

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