Transmission shaft convenient to use

Abstract

The utility model relates to the technical field of transmission shafts, in particular to a transmission shaft convenient to use. According to the technical scheme, the device comprises an outer shaft sleeve, the interior of the outer shaft sleeve is hollow, limiting nuts are spirally connected to the outer walls of the two ends of the outer shaft sleeve in a sleeving mode, elastic clamping pieces are fixedly arranged at the two ends of the outer shaft sleeve, and threads are arranged on the outer walls of the elastic clamping pieces; one end of the transmission shaft head is fixedly connected with an inner shaft rod, the inner shaft rod is connected with the outer shaft sleeve in a sliding mode, and a clamping groove is formed in the outer wall of the transmission shaft head. According to the utility model, the length of the transmission shaft can be conveniently adjusted, rapid disassembly, replacement or adjustment is realized, and the connection stability and transmission efficiency are improved, so that the performance and the energy utilization rate of the motor are improved, and meanwhile, a connecting part can be placed in the transmission shaft without additionally adding a bolt or a fixing clip, and stable clamping can be directly performed; and the connection stability and the replacement efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a transmission shaft that is convenient to use. Background Art

[0002] The motor drive shaft is a key component that transmits the power of the motor to other mechanical equipment. It is usually composed of shafts, gears, couplings, etc. In the motor drive shaft, the shaft plays the role of load-bearing capacity and torque, while gears and couplings are used to connect different mechanical equipment and change the transmission ratio to meet the working requirements under different working conditions.

[0003] However, the existing motor drive shaft has a complex structure and is inconvenient to process. It is also not easy to disassemble, replace and adjust, so it cannot be used according to actual needs, resulting in unstable connection and low transmission efficiency, which affects the performance and energy utilization of the motor. Utility Model Content

[0004] The purpose of the utility model is to propose a convenient-to-use transmission shaft to address the problem that the existing motor transmission shaft in the background technology has a complex structure, is inconvenient to process, and is not easy to disassemble, replace and adjust, so it cannot be used according to actual needs, resulting in unstable connection and thus low transmission efficiency, thereby affecting the performance and energy utilization of the motor.

[0005] The technical solution of the utility model: a convenient-to-use transmission shaft, including an outer sleeve, and the interior of the outer sleeve is hollow, and also includes: the outer walls at both ends of the outer sleeve are spirally sleeved with limiting nuts, both ends of the outer sleeve are fixedly provided with elastic cards, and the outer walls of the elastic cards are provided with threads; a transmission shaft head, one end of the transmission shaft head is fixedly connected with an inner shaft rod, the inner shaft rod is slidably connected to the outer sleeve, and the outer wall of the transmission shaft head is provided with a card groove.

[0006] Optionally, the inner wall of the outer sleeve is fixedly provided with key grooves which are symmetrical to each other, and the outer wall of the inner shaft rod is provided with key blocks which are matched with the key grooves.

[0007] Optionally, a rubber anti-slip pad is fixedly provided on the inner wall of the elastic card.

[0008] Optionally, a limiting ring is fixedly sleeved on the outer wall of one end of the transmission shaft head.

[0009] Optionally, the card slot is configured as a "V"-shaped structure, and the bottom is inclined and gradually increases.

[0010] Optionally, an anti-slip groove is provided on the outer wall of the limiting nut.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] 1. The utility model makes the outer shaft sleeve and the inner shaft rod tightly slidingly connected through the keyway and the key block, thereby reducing the vibration during transmission and limiting the position at the same time, which is convenient for adjusting the length. The limiting nut is rotated and sleeved on the outer wall of the elastic card to limit the inner shaft rod, so as to achieve rapid disassembly, replacement or adjustment, improve the stability of the connection and the transmission efficiency, thereby improving the performance and energy utilization of the motor;

[0013] 2. The utility model provides a card slot on the outer wall of the transmission shaft head, thereby solving the problem that the connecting component does not need to be placed in the transmission shaft without adding additional pins or fixing clips, and can directly perform stable card connection, thereby improving the stability of the connection and the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a transmission shaft structure that is convenient to use is provided in the utility model;

[0015] Figure 2 Provide the utility model Figure 1 A schematic diagram of a front cross-sectional structure;

[0016] Figure 3 A schematic diagram of the split structure of the utility model 1 is given.

[0017] Reference numerals:

[0018] 1. Outer sleeve; 2. Limit nut; 3. Elastic card; 4. Transmission shaft head; 5. Inner shaft; 6. Slot; 7. Keyway; 8. Key block; 9. Rubber anti-slip pad; 10. Limit ring. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example

[0025] like Figures 1 to 3 As shown, the utility model proposes a convenient-to-use transmission shaft, including an outer sleeve 1, the outer walls at both ends of the outer sleeve 1 are provided with threads, and the interior of the outer sleeve 1 is hollow, and also includes: the outer walls at both ends of the outer sleeve 1 are spirally sleeved with limiting nuts 2, and the limiting nuts 2 and the threads of the outer walls at both ends of the outer sleeve 1 are mutually adapted, both ends of the outer sleeve 1 are fixedly provided with elastic cards 3, and the outer walls of the elastic cards 3 are provided with threads, which improves the strength of the connection and facilitates the limiting of the elastic cards 3; a transmission shaft head 4 for transmission connection, and one end of the transmission shaft head 4 is rounded, which is convenient for the insertion of the connecting parts and avoids damage to the connecting parts caused by inaccurate insertion, one end of the transmission shaft head 4 is fixedly connected with an inner shaft rod 5, the inner shaft rod 5 is slidably connected to the outer sleeve 1, and the inner shaft rod 5 and the outer sleeve 1 are adapted to each other, can be tightly clamped, reduce the vibration generated during transmission, thereby reducing the generation of heat and improving the service life, and the outer wall of the transmission shaft head 4 is provided with a card slot 6, which is convenient for the disassembly and assembly of the connecting parts.

[0026] like Figure 2 and Figure 3 As shown, the inner wall of the outer sleeve 1 is fixedly provided with mutually symmetrical keyways 7, and the outer wall of the inner shaft rod 5 is provided with a key block 8 adapted to the keyway 7, and the keyway 7 and the key block 8 are adapted to each other, which can reduce the friction generated during sliding, reduce wear, make the outer sleeve 1 and the inner shaft rod 5 tightly fitted, reduce the vibration generated during transmission, and guide the transmission shaft head 4 at the same time, improve the stability of movement, and increase the service life.

[0027] like Figures 1 to 3 As shown, a rubber anti-skid pad 9 is fixedly provided on the inner wall of the elastic card 3 , and an anti-skid pattern is provided on the inner ring surface of the rubber anti-skid pad 9 , which can increase the friction force between the contact with the inner shaft rod 5 and improve the limiting stability of the inner shaft rod 5 .

[0028] like Figures 1 to 3 As shown, a limit ring 10 is fixedly sleeved on the outer wall of one end of the transmission shaft head 4, which can play a sealing role to prevent impurities such as dust and moisture from invading the connection, and can effectively prevent the lubricating oil in the connection from deteriorating, thereby extending the service life.

[0029] Furthermore, the card slot 6 is set to a "V"-shaped structure, and the bottom is set to be inclined and gradually increased, so that the contact surface of the connecting component can be more stably connected as the depth decreases, which is convenient for disassembly, assembly and replacement.

[0030] Furthermore, the outer wall of the limiting nut 2 is provided with an anti-slip groove, which can increase the friction during rotation and prevent the nut from accidentally rotating due to hand slipping during operation, so that the hand can better grasp the nut during operation, thereby avoiding accidental rotation of the nut in the axial direction of the thread, ensuring the safety and stability of the operation.

[0031] The working principle of this embodiment is as follows: when adjusting the length of the transmission shaft, first rotate the limit nut 2 out from the outer wall of the elastic card 3, and expand it to the surroundings through the elastic force of the elastic card 3 itself, and then pull the transmission shaft head 4 horizontally according to actual use. During the horizontal movement, the transmission shaft head 4 drives the key slot 7 and the key block 8 to slide horizontally, guides the transmission shaft head 4, and increases the stability of the movement.

[0032] When the transmission shaft head 4 is pulled to the appropriate position, the limit nut 2 is rotated in the opposite direction. The limit nut 2 tightens the elastic card 3 during the movement of the outer wall of the outer sleeve 1. The elastic card 3 drives the rubber anti-slip pad 9 on the inner wall to be tightly clamped on the outer wall of the inner shaft rod 5 to fix it and limit its position, thereby realizing rapid adjustment of the transmission rod for easy use.

[0033] Finally, the parts to be connected are sleeved on the outer wall of the transmission shaft head 4. Through the slot 6 on the transmission shaft head 4, when the connecting parts are pushed inward, they are tightly clamped on the outer wall of the transmission shaft head 4, so as to realize quick connection of the transmission rod and improve the efficiency of disassembly and assembly.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A transmission shaft that is convenient to use, comprising an outer sleeve (1), wherein the interior of the outer sleeve (1) is hollow, characterized in that: Also includes: The outer walls of both ends of the outer sleeve (1) are both screw-sleeved with limit nuts (2), and elastic clips (3) are fixedly arranged at both ends of the outer sleeve (1), and the outer walls of the elastic clips (3) are provided with threads; A transmission shaft head (4), one end of which is fixedly connected to an inner shaft rod (5), the inner shaft rod (5) is slidably connected to an outer shaft sleeve (1), and a clamping groove (6) is provided on the outer wall of the transmission shaft head (4).

2. A convenient-to-use transmission shaft according to claim 1, characterized in that: The inner wall of the outer sleeve (1) is fixedly provided with key grooves (7) which are symmetrical to each other, and the outer wall of the inner shaft rod (5) is provided with a key block (8) which is matched with the key grooves (7).

3. A convenient-to-use transmission shaft according to claim 1, characterized in that: A rubber anti-slip pad (9) is fixedly arranged on the inner wall of the elastic card (3).

4. A convenient-to-use transmission shaft according to claim 1, characterized in that: A limiting ring (10) is fixedly sleeved on the outer wall of one end of the transmission shaft head (4).

5. The convenient-to-use transmission shaft according to claim 1, characterized in that: The card slot (6) is arranged in a "V"-shaped structure, and the bottom is arranged in an inclined manner.

6. The convenient-to-use transmission shaft according to claim 1, characterized in that: The outer wall of the limiting nut (2) is provided with an anti-slip groove.

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