Multi-section type universal joint

Abstract

The utility model relates to the technical field of multi-section type universal joints, and discloses a multi-section type universal joint which comprises an input block, a buffer input section is arranged in the input block, a sliding groove is formed in the middle of the buffer input section, a plurality of positioning blocks are arranged in one end of the buffer input section, a plurality of springs are arranged in the positioning blocks, and the springs are arranged in the sliding groove. One end of the spring tightly presses the pressing plate, a positioning pin is arranged on the inner side of the spring, a limiting block is arranged in the middle of the buffering input joint and tightly presses the limiting cover, one end of the buffering input joint is matched with the input cross joint in an inserted mode, and one end of the input cross joint is matched with one end of the connecting block in an inserted mode. The other side of the connecting block is in plug-in fit with an output cross joint, one end of the output cross joint is in plug-in fit with one end of an output joint, and the other end of the output joint is provided with an output block; the problems that when one end of the universal joint suddenly receives large torque, the joint is fractured, and equipment stops running are effectively solved, and meanwhile the universal joint is kept stable and does not deviate from the preset position.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-section universal joints, in particular to a multi-section universal joint. Background Art

[0002] Universal joints are a key connecting component commonly used in mechanical transmission systems. Their core principle is to utilize a ball joint or a cross-axis joint to allow two shafts to rotate freely within a certain angle range while maintaining continuous power transmission. During operation, the universal joint is required to rotate the mechanical energy at one end to drive the equipment at the other end. However, if one end of the universal joint is suddenly subjected to a large torque, it may cause the universal joint connection to break, causing the equipment to stop operating.

[0003] To this end, we propose a multi-section universal joint. Utility Model Content

[0004] The purpose of the present invention is to provide a multi-section universal joint to solve the problem in the background art that one end of the universal joint is suddenly subjected to a large torque, which may cause the universal joint connection to break and the equipment to stop operating.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-section universal joint, comprising an input block, a buffer input section is provided inside the input block, a sliding groove is provided in the middle of the buffer input section, a plurality of positioning blocks are provided inside one end of the buffer input section, a plurality of springs are provided inside the positioning block, one end of the spring is tightly pressed into the pressure plate, a positioning pin is provided on the inside of the spring, a limit block is provided in the middle of the buffer input section, the limit block is tightly pressed into the limit cover, one end of the buffer input section is plugged into and matched with the input cross byte, one end of the input cross byte is plugged into and matched with one end of the connecting block, the other side of the connecting block is plugged into and matched with the output cross byte, one end of the output cross byte is plugged into and matched with one end of the output section, and the other end of the output section is provided with an output block.

[0006] Preferably, an input shaft is provided inside the input block, a limiting slot is provided in the input block, a limiting block is provided inside the limiting slot, and the limiting block is rotatably connected to the buffer input section.

[0007] Preferably, the positioning pin is slidably connected to the pressure plate, and a spring is provided on the outside of the positioning pin.

[0008] Preferably, the input block is threadedly connected to a limiting cover, and the inner wall of the limiting cover tightly presses the limiting block.

[0009] Preferably, the output joint includes a cross rod and a ball head, the ball head is provided with a limiting groove, and the limiting groove is slidably connected to the inside of the output block.

[0010] Preferably, the positioning blocks are distributed in a ring shape, and the positioning blocks are fixedly connected to the inside of the buffer input section.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model is connected with a buffer input joint through the internal input block, and one end of the buffer input joint is equipped with multiple positioning blocks, and multiple springs are embedded in the positioning block. One end of the spring is tightly pressed against the pressure plate, and a positioning pin is also provided on the inside of the spring. A limit block is provided in the middle of the buffer input joint, and the limit block is tightly pressed against the limit cover. One end of the buffer input joint is connected to the input cross byte by plugging, and the other end of the input cross byte is connected to the connecting block, and the connecting block is plugged with the output cross byte. The output cross byte is connected with an output joint and an output block at the other end of the output joint. When the torque increases, the spring will be compressed to absorb part of the impact force and reduce the force directly acting on the universal joint connection, ensuring the buffering effect, effectively solving the problem of connection breakage and equipment shutdown caused by one end of the universal joint suddenly receiving a large torque, while maintaining stability and not deviating from the predetermined position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the overall decomposition structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the buffer input section structure of the present utility model;

[0016] Figure 4 This is a schematic diagram of the overall front structure of the utility model;

[0017] In the figure: 1. Input block; 2. Buffer input section; 3. Limit block; 4. Limit cover; 5. Input cross byte; 6. Connecting block; 7. Output cross byte; 8. Output section; 9. Output block; 101. Input shaft; 201. Positioning block; 202. Spring; 203. Pressure plate; 204. Positioning pin; 801. Cross rod; 802. Ball head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example

[0020] See also Figures 1-4 The multi-section universal joint shown in the figure includes an input block 1, a buffer input section 2 is provided inside the input block 1, a sliding groove is opened in the middle of the buffer input section 2, a plurality of positioning blocks 201 are provided inside one end of the buffer input section 2, a plurality of springs 202 are provided inside the positioning block, one end of the spring 202 is tightly pressed into the pressure plate 203, a positioning pin 204 is provided on the inside of the spring 202, a limit block 3 is provided in the middle of the buffer input section 2, the limit block 3 is tightly pressed into the limit cover 4, one end of the buffer input section 2 is plugged into the input cross byte 5, one end of the input cross byte 5 is plugged into one end of the connecting block 6, the other side of the connecting block 6 is plugged into the output cross byte 7, one end of the output cross byte 7 is plugged into one end of the output section 8, and the other end of the output section 8 is provided with an output block 9.

[0021] Furthermore, an input shaft 101 is provided inside the input block 1, a limit slot is provided in the input block 1, a limit block 3 is provided inside the limit slot, the limit block 3 is rotatably connected to the buffer input section 2, an input shaft is provided inside the input block, and a limit slot is carefully provided on the input block, and the limit block is accommodated inside the limit slot. The limit block serves as a key component connecting the input block and the buffer input section, realizing a rotational connection between the two, providing a stable support and torque transmission basis, and ensuring the stability of rotation.

[0022] Furthermore, the positioning pin 204 is slidably connected to the pressure plate 203, and a spring 202 is provided on the outside of the positioning pin 204. The positioning pin and the pressure plate are slidably connected, so that the pressure plate can perform slight displacement adjustments inside the positioning block according to actual needs. The displacement adjustment capability is crucial for absorbing and dispersing torque and reducing the impact force directly acting on the universal joint connection. It effectively avoids problems such as fracture of the connection due to excessive torque and also extends its service life.

[0023] Furthermore, the input block 1 is threadedly connected to the limit cover 4, and the inner wall of the limit cover 4 is tightly pressed against the limit block 3. The input block is tightly connected to the limit cover through threaded connection, which ensures a firm connection between the two and provides a convenient installation and disassembly process, which is beneficial to the operational convenience of the universal joint during maintenance and replacement. At the same time, the inner wall of the limit cover is tightly pressed against the limit block, and the stability of the limit block effectively prevents its buffer input joint from separating from the input block to ensure the overall stability.

[0024] Furthermore, the output joint 8 includes a cross rod 801 and a ball head 802. The ball head 802 has a limit groove, which is slidably connected to the inside of the output block 9. The output joint is composed of two major parts, the cross rod and the ball head. A limit groove is cleverly provided on the surface of the ball head. The limit groove plays an important role in connection and guidance. The limit groove is slidably connected to the internal structure of the output block within a certain range, thereby realizing rotation and driving the output block to rotate, thereby improving the adaptability of the universal joint.

[0025] Furthermore, the positioning blocks 201 are distributed in a ring shape, and the positioning blocks 201 are fixedly connected to the inside of the buffer input joint 2. The positioning blocks are distributed in a ring shape, and they are firmly combined with the inside of the buffer input joint through a fixed connection. The positioning blocks are arranged in a ring shape, which not only provides uniform support force for the buffer input joint, ensuring that it can remain stable when subjected to torque, but also helps to disperse and absorb torque, reduce stress concentration, and thus enhance the load-bearing capacity and durability of the universal joint.

[0026] In this solution, the workflow begins with assembly of the input block 1. Inside this block 1, a buffer input section 2 is designed to provide initial torque buffering for the universal joint. A sliding groove is defined in the center of this section to facilitate sliding engagement with other components. Inside one end of this section, multiple positioning blocks 201 are positioned in a circular pattern and fixedly attached to the interior of the buffer input section, providing stable support for subsequent component installation.

[0027] Next, we installed multiple springs 202 inside the positioning block 201. One end of these springs tightly presses against the pressure plate 203, providing continuous elastic support for the universal joint. Furthermore, positioning pins 204 are located inside the springs 202. A sliding connection between the positioning pins 204 and the pressure plate 203 ensures that the pressure plate 203 can slightly move relative to the positioning pins 204 under torque, further absorbing and dissipating the torque.

[0028] A stopper block 3 is installed in the middle of the buffer input section 2. This design not only limits the range of motion of the buffer input section 2 but also enhances structural stability by tightly pressing against the inner wall of the stopper cover 4. It's worth noting that the input block 1 and the stopper cover 4 are connected by a threaded connection, which is both secure and easy to disassemble, facilitating maintenance and replacement of the universal joint.

[0029] Next, we plug one end of the buffer input section 2 into the input crossbar 5. The design of the input crossbar 5 allows for smooth torque transfer to the next component. Next, one end of the input crossbar 5 plugs into the connecting block 6, which acts as an intermediate transition component, transferring torque to the output crossbar 7.

[0030] One end of the output crossbar 7 plugs into the output joint 8. This joint, consisting of a crossbar 801 and a ball joint 802, ensures stable torque transmission while providing flexible movement. A retaining groove is provided on the ball joint 802, which slides into the interior of the output block 9, ensuring a tight fit and smooth transmission between the output joint 8 and the output block 9.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-section universal joint, characterized in that: The invention comprises an input block (1), wherein a buffer input section (2) is provided inside the input block (1), a sliding groove is provided in the middle of the buffer input section (2), a plurality of positioning blocks (201) are provided inside one end of the buffer input section (2), a plurality of springs (202) are provided inside the positioning block, one end of the spring (202) is tightly pressed against a pressure plate (203), a positioning pin (204) is provided inside the spring (202), a limiting block (3) is provided in the middle of the buffer input section (2), the limiting block (3) is tightly pressed against a limiting cover (4), one end of the buffer input section (2) is plugged into and matched with an input ten-byte (5), one end of the input ten-byte (5) is plugged into and matched with one end of a connecting block (6), the other side of the connecting block (6) is plugged into and matched with an output ten-byte (7), one end of the output ten-byte (7) is plugged into and matched with one end of an output section (8), and the other end of the output section (8) is provided with an output block (9).

2. The multi-section universal joint according to claim 1, characterized in that: An input shaft (101) is provided inside the input block (1), a limiting slot is provided in the input block (1), a limiting block (3) is provided inside the limiting slot, and the limiting block (3) is rotatably connected to the buffer input section (2).

3. The multi-section universal joint according to claim 1, characterized in that: The positioning pin (204) is slidably connected to the pressure plate (203), and a spring (202) is provided on the outside of the positioning pin (204).

4. The multi-section universal joint according to claim 1, characterized in that: The input block (1) is threadedly connected to the limiting cover (4), and the inner wall of the limiting cover (4) is tightly pressed against the limiting block (3).

5. The multi-section universal joint according to claim 1, characterized in that: The output section (8) comprises a cross rod (801) and a ball head (802), wherein the ball head (802) is provided with a limiting groove, and the limiting groove is slidably connected to the interior of the output block (9).

6. The multi-section universal joint according to claim 1, characterized in that: The positioning blocks (201) are distributed in a ring shape, and the positioning blocks (201) are fixedly connected to the interior of the buffer input section (2).

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