Combined transmission gear shaft

Abstract

The utility model discloses a combined transmission gear shaft, which relates to the field of gear shafts and comprises a shaft rod, a gear and a locking component are arranged at one end of the shaft rod, and the locking component comprises a positioning groove arranged at one end of the shaft rod. Through the arrangement of the locking assembly, when a gear is installed, a positioning block on one side of the gear can be inserted into a positioning groove so that the positioning block can be positioned firstly, then two pressing rods are pressed, the pressing rods move at the same time and drive the locking block to move into the locking groove, meanwhile, a spring can be stretched, and the positioning block can be locked and limited; then the baffle ring is rotated to move, the baffle ring is not rotated any more after the inner wall of the baffle ring is attached to the end of the pressing rod, at the moment, the baffle ring can limit the pressing rod so that the locking block can be stably inserted into the locking groove, the gear can be installed, and in this way, the gear can be rapidly disassembled, assembled and replaced; and the shaft rod does not need to be replaced simultaneously, so that the replacement cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of gear shafts, specifically a combined transmission gear shaft. Background Technology

[0002] Gear transmission is a mechanical transmission method that uses the meshing of the teeth of two or more gears to transmit power and motion. The gears are mounted on a gear shaft for transmission.

[0003] According to Chinese Patent No. CN221525486U, a combined transmission gear shaft is disclosed. The front bearing and the rear bearing of this utility model are directly installed in the front annular step and the rear annular step formed at both ends of the shaft, respectively, so that the shaft on the bracket extends into the shaft for rotational engagement. In this way, the overall length of the shaft can be reduced in actual design, thereby reducing the processing difficulty and improving the transmission accuracy.

[0004] Regarding the aforementioned patent content, after a gear meshes and rotates with other gears for a long time, its surface will wear down. If the gear wears down severely, it needs to be replaced to avoid affecting the transmission efficiency between gears. However, since the gear and shaft are fixedly connected, it is difficult to replace the gear alone. The entire shaft needs to be replaced, which increases the replacement cost and reduces the effectiveness of the gear replacement. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a combined transmission gear shaft to solve the technical problem of difficulty in replacing severely worn gears individually.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined transmission gear shaft, including a shaft rod, one end of which is provided with a gear and a locking assembly. The locking assembly includes a positioning groove formed at one end of the shaft rod, a positioning block installed on one side of the gear, two grooves formed inside the shaft rod, and a retaining ring sleeved on the outer wall of the shaft rod. Locking grooves are formed on the outer surface and back of the positioning block. A spring is installed inside the groove, and the end of the spring is connected to a locking block extending into the locking groove. A pressure rod extending through to the outside of the shaft rod is installed on the locking block.

[0007] By adopting the above technical solution, when installing gears, the positioning block on one side of the gear can be inserted into the positioning groove so that the positioning block can be positioned first.

[0008] Furthermore, the gear is provided with multiple weight-reducing holes.

[0009] By adopting the above technical solution, the overall weight of the gear can be reduced.

[0010] Furthermore, the gear is detachably connected to the shaft.

[0011] By adopting the above technical solution, it is convenient to disassemble and assemble gears, and thus, severely worn gears can be replaced.

[0012] Furthermore, the outer wall of the retaining ring is provided with multiple anti-slip protrusions, and the surface of the anti-slip protrusions is rough.

[0013] By adopting the above technical solution, the anti-slip protrusions can play an anti-slip role, making it easier for users to rotate the retaining ring.

[0014] Furthermore, both the outer wall of the shaft and the inner wall of the retaining ring are threaded, and the retaining ring is threadedly connected to the shaft.

[0015] By adopting the above technical solution, the retaining ring can be moved when the staff rotates it, so as to adjust the position of the retaining ring.

[0016] Furthermore, the inner wall of the retaining ring is fitted to the end of the pressure rod.

[0017] By adopting the above technical solution, the retaining ring can limit the pressure rod and prevent it from moving arbitrarily.

[0018] Furthermore, the locking block is adapted to the locking groove, and the locking block is slidably connected to the groove.

[0019] By adopting the above technical solution, after the locking block moves into the locking groove, it can lock and limit the positioning block, improve the stability of the positioning block, and prevent the positioning block from moving out of the positioning groove at will.

[0020] Furthermore, the positioning block is adapted to the positioning groove.

[0021] By adopting the above technical solution, the gear can be positioned after the positioning block is inserted into the positioning groove.

[0022] Furthermore, both the pressure rod and the spring are made of stainless steel.

[0023] By adopting the above technical solutions, rust on the pressure rod and spring can be prevented, thereby improving the service life of the pressure rod and spring.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model, by incorporating a locking assembly, allows for the insertion of a positioning block on one side of the gear into the positioning groove during gear installation. This first positions the positioning block, then presses down on the two pressure rods, causing them to move simultaneously and move the locking block into the locking groove. Simultaneously, the spring is stretched, locking and limiting the positioning block. Next, the retaining ring is rotated, causing it to move. Once the inner wall of the retaining ring is in contact with the end of the pressure rod, the ring stops rotating, thus limiting the pressure rod and ensuring the locking block is securely inserted into the locking groove. The gear can be installed in this way. When disassembling, simply reverse the retaining ring so that it moves and no longer blocks the pressure rod. The spring contracts and drives the locking block to move back to its original position, so that the locking block moves into the groove and no longer limits the positioning block. At this time, the gear can be removed. This method allows for quick disassembly and replacement of gears without the need for multiple bolts, simplifying the disassembly and assembly steps and improving the efficiency of gear disassembly and assembly. Moreover, only the gear needs to be replaced, without replacing the shaft at the same time, thus saving replacement costs.

[0026] 2. This utility model is equipped with anti-slip protrusions to prevent slipping and facilitate the user to rotate the retaining ring, allowing for quick adjustment of the retaining ring's position. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the gear structure of this utility model;

[0029] Figure 3 This is a partial top-section structural diagram of the shaft of this utility model;

[0030] Figure 4 This is a schematic diagram of the positioning block structure of this utility model.

[0031] In the diagram: 1. Shaft; 2. Gear; 3. Weight reduction hole; 4. Locking assembly; 401. Positioning groove; 402. Positioning block; 403. Locking groove; 404. Locking block; 405. Groove; 406. Spring; 407. Pressure rod; 408. Retaining ring; 409. Anti-slip protrusion. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of this utility model will be described below based on its overall structure.

[0034] Example 1:

[0035] A combined transmission gear shaft, such as Figures 1-4 As shown, the assembly includes a shaft 1, with a gear 2 and a locking assembly 4 at one end. The shaft 1 is a worm shaft, which is combined with the gear 2. The gear 2 is detachably connected to the shaft 1, facilitating disassembly and assembly of the gear 2. This allows for the replacement of the gear 2 if it is severely worn. The gear 2 has multiple weight-reducing holes 3, which can reduce the overall weight of the gear 2. The locking assembly 4 includes a positioning groove 401 at one end of the shaft 1, a positioning block 402 installed on one side of the gear 2, two grooves 405 inside the shaft 1, and a retaining ring 408 sleeved on the outer wall of the shaft 1. The outer surface and back of the positioning block 402 are provided with locking grooves 403. A spring 406 is installed inside the groove 405, and the end of the spring 406 is connected to a locking block 404 extending into the locking groove 403.

[0036] Specifically, a pressure rod 407 extending through the shaft 1 is installed on the locking block 404. When installing the gear 2, the positioning block 402 on one side of the gear 2 can be inserted into the positioning groove 401 to position the positioning block 402 first. The outer wall of the shaft 1 and the inner wall of the retaining ring 408 are both threaded. The retaining ring 408 is threaded to the shaft 1, so that when the operator rotates the retaining ring 408, the retaining ring 408 can move to adjust its position. The inner wall of the retaining ring 408 fits against the end of the pressure rod 407, and the retaining ring 408 can limit the pressure rod 407 to prevent it from moving arbitrarily.

[0037] Specifically, the locking block 404 is adapted to the locking groove 403, and the locking block 404 is slidably connected to the groove 405. After the locking block 404 moves into the locking groove 403, it can lock and limit the positioning block 402, improve the stability of the positioning block 402, and prevent the positioning block 402 from moving out of the positioning groove 401 at will. The positioning block 402 is adapted to the positioning groove 401. When the positioning block 402 is inserted into the positioning groove 401, it can position the gear 2. The pressure rod 407 and the spring 406 are both made of stainless steel to prevent the pressure rod 407 and the spring 406 from rusting, thereby improving the service life of the pressure rod 407 and the spring 406.

[0038] Example 2:

[0039] Based on the above embodiment 1, the following structure will be set to facilitate rapid rotation of the retaining ring 408.

[0040] See Figures 1-4 The outer wall of the retaining ring 408 is provided with multiple anti-slip protrusions 409. The surface of the anti-slip protrusions 409 is rough. The anti-slip protrusions 409 can play an anti-slip role, making it easy for the user to rotate the retaining ring 408, thereby quickly adjusting the position of the retaining ring 408.

[0041] The working principle of this utility model is as follows: First, when installing gear 2, the positioning block 402 on one side of gear 2 can be inserted into the positioning groove 401 to position the positioning block 402. Then, press the two pressure rods 407, causing the pressure rods 407 to move simultaneously and drive the locking block 404 into the locking groove 403. At the same time, the spring 406 will be stretched, and the positioning block 402 can be locked and limited. Next, rotate the retaining ring 408 to move the retaining ring 408. When the inner wall of the retaining ring 408 is in contact with the end of the pressure rod 407, the retaining ring 408 will no longer be rotated. At this time, the retaining ring 408 will be locked and limited. Ring 408 can limit the pressure rod 407 so that the locking block 404 can be firmly inserted into the locking groove 403, thus completing the installation of gear 2. When disassembling, simply reverse the retaining ring 408 so that the retaining ring 408 moves and no longer blocks the pressure rod 407. The spring 406 contracts and drives the locking block 404 to reset and move, so that the locking block 404 moves into the groove 405 and no longer limits the positioning block 402. At this time, gear 2 can be removed. In this way, gear 2 can be quickly disassembled and replaced. The weight reduction hole 3 can reduce the overall weight of gear 2.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A combined transmission gear shaft, comprising a shaft (1), characterized in that: One end of the shaft (1) is provided with a gear (2) and a locking assembly (4). The locking assembly (4) includes a positioning groove (401) opened at one end of the shaft (1), a positioning block (402) installed on one side of the gear (2), two grooves (405) opened inside the shaft (1) and a retaining ring (408) sleeved on the outer wall of the shaft (1). The outer surface and back of the positioning block (402) are provided with locking grooves (403). A spring (406) is installed inside the groove (405), and the end of the spring (406) is connected to a locking block (404) extending into the locking groove (403). A pressure rod (407) is installed on the locking block (404) extending through to the outside of the shaft (1).

2. The combined transmission gear shaft according to claim 1, characterized in that: The gear (2) has multiple weight-reducing holes (3).

3. The combined transmission gear shaft according to claim 1, characterized in that: The gear (2) is detached from the shaft (1).

4. The combined transmission gear shaft according to claim 1, characterized in that: The outer wall of the retaining ring (408) is provided with a plurality of anti-slip protrusions (409), and the surface of the anti-slip protrusions (409) is rough.

5. A combined transmission gear shaft according to claim 1, characterized in that: The outer wall of the shaft (1) and the inner wall of the retaining ring (408) are both threaded, and the retaining ring (408) is threadedly connected to the shaft (1).

6. A combined transmission gear shaft according to claim 1, characterized in that: The inner wall of the retaining ring (408) is in contact with the end of the pressure rod (407).

7. A combined transmission gear shaft according to claim 1, characterized in that: The locking block (404) is adapted to the locking groove (403), and the locking block (404) is slidably connected to the groove (405).

8. A combined transmission gear shaft according to claim 1, characterized in that: The positioning block (402) is adapted to the positioning groove (401).

9. A combined transmission gear shaft according to claim 1, characterized in that: Both the pressure bar (407) and the spring (406) are made of stainless steel.

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