Rotary telescopic transmission structure

Abstract

The utility model provides a rotary telescopic transmission structure, which comprises a first motor, a second motor, a first telescopic rod and a second telescopic rod, the two sides of the first support are each provided with a first sliding rod, and the first support is installed on the two first sliding rods; the first bevel gear is installed on an output shaft of the first motor, and a first sliding block is further installed on the first bevel gear; the second bevel gear is rotatably mounted on the first bracket and is meshed with the first bevel gear; the first sliding block is installed in the limiting groove, and the arrangement direction of the limiting groove is perpendicular to the first sliding rod. Through innovative design and optimization, the rotary telescopic transmission structure provided by the utility model effectively solves the problems of high complexity, large size, poor reliability, inconvenience in electric signal transmission and the like in the prior art, and has remarkable technical progress and wide application prospect; the performance and the reliability of the system are improved, the cost and the maintenance difficulty are reduced, and the system is suitable for various industrial and civil fields.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, concretely relates to a rotary telescopic transmission structure. BACKGROUND

[0002] Rotary telescopic transmission structure is widely used in various mechanical equipment, such as automated production line, robot joint, medical equipment etc.;This kind of structure usually needs to realize two basic functions: rotary motion and linear telescopic motion. Existing rotary telescopic transmission structure usually realizes the combination of the two kinds of motions through complex mechanical design, for example uses gear set, slider guide rail, screw nut etc.

[0003] In prior art, common rotary telescopic transmission structure mainly includes following several forms:

[0004] Gear and screw combination: through motor drive gear system, then through screw converts rotary motion into linear motion.

[0005] Belt and slider combination: utilizes belt transmission rotary motion, realizes telescopic motion through the movement of slider on guide rail.

[0006] Hydraulic or pneumatic cylinder: through hydraulic or pneumatic drive piston rod telescopic motion, and realizes rotary motion through gear or other ways.

[0007] Although the above technical scheme can realize the combination of rotary and telescopic two motions, but in actual application still has some deficiencies:

[0008] 1. Complexity and high cost:

[0009] Traditional gear and screw combination design is complex, and the manufacturing cost is high. Especially in the case of needing accurate control, often needs high-precision machining process, leading to the rise of overall cost.

[0010] Although hydraulic or pneumatic system can provide larger thrust, but its maintenance requirement is higher, and is easy to appear leakage etc. problem, increases the cost of long-term operation.

[0011] 2. Large volume, heavy weight:

[0012] Because needing multiple components to work together, traditional design usually occupies larger space, and this is a significant disadvantage for some application scenarios (such as portable device, compact robot) that have strict requirements on volume and weight.

[0013] 3. Reliability problem:

[0014] Complex mechanical structure is prone to failure points, especially for long continuous operation of the equipment, its reliability and stability is an important factor. For example, the belt is easy to wear, the seal of the hydraulic system is easy to age failure.

[0015] 4. The electrical connection is inconvenient:

[0016] In the case of rotation and extension movement, how to ensure the stable transmission of electrical signal is also a challenge. The traditional method is usually through the slip ring or cable drag chain to achieve, but these two ways have their own limitations, such as slip ring is easy to wear, cable drag chain may limit the range of motion.

[0017] Therefore, the prior art has shortcomings, and needs further improvement. Practical new type content

[0018] In view of the problems existing in the prior art, the utility model provides a rotary extension transmission structure.

[0019] In order to realize the above-mentioned purpose, the specific scheme of the utility model is as follows:

[0020] The utility model provides a rotary extension transmission structure, comprising:

[0021] The first motor is installed on a first support;

[0022] The first support is provided with a first sliding rod on both sides, and the first support is installed on the two first sliding rods;

[0023] The first bevel gear is installed on the output shaft of the first motor, and a first sliding block is further installed thereon;

[0024] The second bevel gear is rotatably installed on the first support and is in mesh with the first bevel gear;

[0025] The first sliding block is installed in the limiting groove, and the setting direction of the limiting groove is perpendicular to the first sliding rod;

[0026] The first motor drives the first bevel gear to rotate, and the first bevel gear drives the second bevel gear to rotate, realizing the rotary motion;

[0027] The first sliding block installed on the first bevel gear is arranged in the limiting groove, and the first bevel gear drives the first support to reciprocate on the two first sliding rods during the rotation process, thereby realizing the extension motion.

[0028] Further, a first gear box is further arranged on the output shaft of the first motor;

[0029] The first bevel gear is installed on the output shaft of the first gear box.

[0030] Further, the axis of the first bevel gear and the axis of the second bevel gear are arranged perpendicular to each other.

[0031] Further, the transmission structure further comprises an electric signal transmission assembly.

[0032] The electric signal transmission assembly comprises a first conductive ring, a second conductive ring, a third conductive ring, a first conductive column, a second conductive column and a third conductive column.

[0033] The first support is provided with a first mounting column, and the first conductive ring, the second conductive ring and the third conductive ring are arranged on the outer side of the first mounting column.

[0034] The first conductive column, the second conductive column and the third conductive column are respectively in abutment with the first conductive ring, the second conductive ring and the third conductive ring, so as to realize rotary conduction.

[0035] Further, the second bevel gear is sleeved on the first mounting column, and a first bolt is further arranged on the first mounting column, for limiting the second bevel gear from falling off the first mounting column.

[0036] The first conductive column, the second conductive column and the third conductive column are mounted on the second bevel gear.

[0037] Further, the second bevel gear is further provided with an inner ring, and the inner ring is sleeved on the first mounting column.

[0038] The inner ring is provided with a mounting groove, and a mounting block is arranged in the mounting groove.

[0039] The first conductive column, the second conductive column and the third conductive column are mounted on the mounting block.

[0040] Further, the limiting groove is arranged on the inner wall of a shell.

[0041] The technical scheme of the utility model has the following beneficial effects:

[0042] 1. Efficient combination of rotary and telescopic movement:

[0043] The first motor drives the first bevel gear, and the first bevel gear drives the second bevel gear to realize rotary movement, and at the same time, the first slider mounted on the first bevel gear moves in the limiting groove, realizing the reciprocating movement of the first support on the two first slide rods, thereby realizing telescopic movement. This design simplifies the traditional complex mechanical structure, making the whole system more compact and efficient.

[0044] 2. Improve the reliability and durability of the system:

[0045] The first bevel gear directly drives the second bevel gear, reducing intermediate links and improving the reliability of the system. The design of the limiting groove ensures stable movement of the first slider therein, avoiding the instability or jamming phenomenon that may occur in traditional designs. In addition, the introduction of the first gear box further enhances the transmission efficiency and stability.

[0046] 3. Optimizing space utilization, reducing volume and weight:

[0047] Due to the adoption of a compact design, the overall structure is more compact and lightweight, making it suitable for application in devices with limited volume and weight. For example, in medical devices, robot joints, and other application scenarios, this compact design can significantly reduce the occupied space, improving the flexibility and portability of the device.

[0048] 4. Enhancing the stability and reliability of electrical signal transmission:

[0049] Through the specially designed electrical signal transmission components (including the first, second, and third conductive rings and the corresponding conductive columns), stable transmission of electrical signals during rotation is ensured. Compared to traditional slip rings or cable drag chains, this design not only improves the stability and service life of signal transmission but also reduces maintenance costs. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a perspective view of the utility model;

[0051] Figure 2 is an exploded view of the utility model;

[0052] Figure 3 is a perspective view of the shell provided with a limiting groove of the utility model;

[0053] Figure 4 is a perspective view of the second bevel gear of the utility model;

[0054] Figure 5 is a perspective view of the second bevel gear from another angle of the utility model.

[0055] LIST OF DRAWINGS

[0056] 1, the first motor; 2, the first support; 3, the first sliding rod; 4, the first bevel gear; 5, the first slider; 6, the second bevel gear; 7, the limiting groove; 8, the first gear box; 9, the first conductive ring; 10, the second conductive ring; 11, the third conductive ring; 12, the first conductive column; 13, the second conductive column; 14, the third conductive column; 15, the first mounting column; 16, the first bolt; 17, the inner ring; 18, the mounting groove; 19, the mounting block; 20, the shell. DETAILED DESCRIPTION

[0057] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0058] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0059] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the embodiment, the terms "upper", "lower", "front", "rear", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0061] In combination with Figures 1-5 As shown in the utility model provides a kind of rotary telescopic transmission structure, comprising:

[0062] First motor 1, it is installed on a first support 2;

[0063] First support 2, one first slide rod 3 is respectively arranged in its two sides, and first support 2 is installed on two first slide rods 3;

[0064] First bevel gear 4, it is installed on the output shaft of first motor 1, and a first sliding block 5 is further installed on it;

[0065] A second bevel gear 6 is rotatably mounted on the first support 2 and is in meshing engagement with the first bevel gear 4;

[0066] A limiting groove 7 is provided, in which the first sliding block 5 is mounted, and the setting direction of the limiting groove 7 is perpendicular to the first sliding rod 3;

[0067] The first motor 1 drives the first bevel gear 4 to rotate, and the first bevel gear 4 drives the second bevel gear 6 to rotate, so as to realize the rotary motion;

[0068] The first sliding block 5 mounted on the first bevel gear 4 is arranged in the limiting groove 7, and the first bevel gear 4 drives the first support 2 to reciprocate on the two first sliding rods 3 during the rotation process, so as to realize the telescopic motion.

[0069] The output shaft of the first motor 1 is further provided with a first gear box 8;

[0070] The first bevel gear 4 is mounted on the output shaft of the first gear box 8.

[0071] The axis of the first bevel gear 4 is arranged perpendicular to the axis of the second bevel gear 6.

[0072] The transmission structure further comprises an electric signal transmission assembly;

[0073] The electric signal transmission assembly comprises a first conductive ring 9, a second conductive ring 10, a third conductive ring 11, a first conductive column 12, a second conductive column 13, and a third conductive column 14;

[0074] The first support 2 is provided with a first mounting column 15, and the first conductive ring 9, the second conductive ring 10, and the third conductive ring 11 are arranged on the outer side of the first mounting column 15;

[0075] The first conductive column 12, the second conductive column 13, and the third conductive column 14 are respectively in abutment with the first conductive ring 9, the second conductive ring 10, and the third conductive ring 11, for realizing the rotary conduction.

[0076] The second bevel gear 6 is sleeved on the first mounting column 15, and the first mounting column 15 is further provided with a first bolt 16 for limiting the second bevel gear 6 from falling off the first mounting column 15;

[0077] The first conductive column 12, the second conductive column 13, and the third conductive column 14 are mounted on the second bevel gear 6.

[0078] The second bevel gear 6 is further provided with an inner ring 17, which is sleeved on the first mounting column 15;

[0079] The inner ring 17 is provided with a mounting groove 18, and a mounting block 19 is arranged in the mounting groove 18.

[0080] The first conductive column 12, the second conductive column 13 and the third conductive column 14 are mounted on the mounting block 19.

[0081] The limiting groove 7 is arranged on the inner wall of a shell 20.

[0082] The utility model principle is as follows:

[0083] The rotary telescopic transmission structure is designed skillfully, and realizes efficient combination of rotary motion and linear telescopic motion.

[0084] 1. Basic components and their functions

[0085] The first motor 1 is mounted on the first support 2 and serves as a power source of the whole transmission structure.

[0086] The first support 2 is provided with a first slide rod 3 on each side, and the first support 2 is supported by the two slide rods and can reciprocate on the slide rods.

[0087] The first bevel gear 4 is mounted on the output shaft of the first motor 1 (or connected through the first gear box 8), and a first sliding block 5 is further mounted on the first bevel gear 4.

[0088] The second bevel gear 6 is rotatably mounted on the first support 2 and is in mesh with the first bevel gear 4.

[0089] The limiting groove 7 is arranged on the inner wall of the shell 20 in a direction perpendicular to the first slide rod 3 and is used for guiding the movement of the first sliding block 5.

[0090] 2. Working process

[0091] Rotary motion part:

[0092] Start the first motor 1: when the first motor 1 starts, the output shaft starts to rotate.

[0093] Drive the first bevel gear 4 to rotate: since the first bevel gear 4 is mounted on the output shaft of the first motor 1 (or connected through the first gear box 8), the first bevel gear 4 also starts to rotate with the rotation of the motor.

[0094] The first bevel gear 4 drives the second bevel gear 6 to rotate: the first bevel gear 4 and the second bevel gear 6 are in mesh with each other, and their axes are perpendicular to each other. Therefore, the rotation of the first bevel gear 4 drives the second bevel gear 6 to rotate, realizing rotary motion.

[0095] Telescopic motion part:

[0096] Movement of the first slider 5 in the limiting groove 7: The first slider 5 mounted on the first bevel gear 4 is arranged in the limiting groove 7, which is perpendicular to the first slide rod 3. When the first bevel gear 4 rotates, the first slider 5 moves in the limiting groove 7 along a direction perpendicular to the slide rod.

[0097] Reciprocal movement of the first bracket 2 on the two first slide rods 3: Since the first slider 5 is limited to move in the limiting groove 7, and the first slider 5 is fixed on the first bevel gear 4, the rotation of the first bevel gear 4 will cause the first slider 5 to move in the limiting groove 7. This movement further drives the first bracket 2 to reciprocate on the two first slide rods 3, thereby realizing the telescopic movement.

[0098] 3. Action of the electrical signal transmission assembly

[0099] Conductive rings and conductive columns: The transmission structure also includes an electrical signal transmission assembly, including a first conductive ring 9, a second conductive ring 10, a third conductive ring 11, and corresponding first conductive column 12, second conductive column 13, third conductive column 14.

[0100] Installation method: These conductive rings are arranged on the outer side of the first mounting column 15, and the conductive columns are respectively in abutment with the conductive rings for realizing rotational conduction. Specifically, the conductive columns can be mounted on the second bevel gear 6, or through the inner ring 17 and mounting block 19 of the second bevel gear 6.

[0101] 4. Detailed workflow example

[0102] Starting the motor: After the first motor 1 starts, its output shaft begins to rotate.

[0103] Driving the bevel gear: The first bevel gear 4 rotates with the motor output shaft and drives the second bevel gear 6 engaged with it to rotate.

[0104] Realizing rotational movement: The rotation of the second bevel gear 6 provides rotational movement for the entire device.

[0105] Moving the slider in the limiting groove 7: The first slider 5 on the first bevel gear 4 moves in the limiting groove 7, which is perpendicular to the first slide rod 3, ensuring that the slider can only move in the vertical direction.

[0106] Moving the bracket on the slide rod: The movement of the first slider 5 drives the first bracket 2 to reciprocate on the two first slide rods 3, realizing telescopic movement.

[0107] Electrical signal transmission: Throughout the process, the electrical signal transmission assembly ensures stable transmission of electrical signals through the conductive rings and conductive columns, maintaining good electrical connection even during rotation.

[0108] SUMMARY

[0109] The rotary telescopic transmission structure drives the first bevel gear 4 to rotate through the first motor 1, and then drives the second bevel gear 6 to rotate, realizing rotary motion; at the same time, the first slider 5 on the first bevel gear 4 moves in the limiting groove 7, drives the first support 2 to reciprocate on the two first sliding rods 3, realizing telescopic motion. In addition, through the specially designed electric signal transmission assembly, the stable transmission of the electric signal in the rotating process is ensured. This design not only simplifies the traditional complex mechanical structure, but also improves the reliability and compactness of the system, and is suitable for various application scenarios.

[0110] The above is only the preferred embodiment of the utility model, and does not limit the utility model range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawing contents, or direct / indirect application in other related technical fields is included in the protection range of the utility model.

Claims

1. A rotary telescoping drive structure, characterized by, The utility model relates to a rotating telescopic transmission structure, which comprises the following parts: a first motor is installed on a first support; the first support is provided with a first slide rod on each side, and the first support is installed on the two first slide rods; a first bevel gear is installed on the output shaft of the first motor, and a first sliding block is further installed on the first bevel gear; a second bevel gear is rotatably installed on the first support and is in mesh with the first bevel gear; a limiting groove is arranged, and the first sliding block is installed in the limiting groove, and the arrangement direction of the limiting groove is perpendicular to the first slide rod; the first motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the rotating motion is realized; the first sliding block installed on the first bevel gear is arranged in the limiting groove, and the first bevel gear drives the first support to reciprocate on the two first slide rods during the rotating process, so that the telescopic motion is realized.

2. The rotating telescopic transmission structure according to claim 1, wherein a first gear box is further arranged on the output shaft of the first motor; the first bevel gear is installed on the output shaft of the first gear box.

3. The rotating telescopic transmission structure according to claim 1, wherein the axis of the first bevel gear and the axis of the second bevel gear are arranged perpendicularly to each other.

4. The rotating telescopic transmission structure according to claim 1, wherein the transmission structure further comprises an electric signal transmission assembly; the electric signal transmission assembly comprises a first conductive ring, a second conductive ring, a third conductive ring, a first conductive column, a second conductive column and a third conductive column; a first mounting column is arranged on the first support, and the first conductive ring, the second conductive ring and the third conductive ring are arranged on the outer side of the first mounting column; the first conductive column, the second conductive column and the third conductive column are in abutment with the first conductive ring, the second conductive ring and the third conductive ring respectively, so as to realize the rotating conduction.

5. The rotating telescopic transmission structure according to claim 4, wherein the second bevel gear is sleeved on the first mounting column, and a first bolt is further arranged on the first mounting column, so as to limit the second bevel gear from falling off the first mounting column; the first conductive column, the second conductive column and the third conductive column are installed on the second bevel gear.

6. The rotating telescopic transmission structure according to claim 4, wherein the second bevel gear is further provided with an inner ring, and the inner ring is sleeved on the first mounting column; an installation groove is arranged on the inner ring, and an installation block is arranged in the installation groove; the first conductive column, the second conductive column and the third conductive column are installed on the installation block.

7. The rotating telescopic transmission structure according to claim 1, wherein the limiting groove is arranged on the inner wall of a shell. ​ ​ ​ ​ ​ ​

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