Adjustable connecting rod driving device

Abstract

The utility model discloses an adjustable connecting rod driving device, and belongs to the technical field of mechanical production. The top of the bottom plate is fixedly provided with two first bearing seats through the second bolts, the top of each first bearing seat is provided with a bearing, the inner ring of each bearing is matched with a shaft body, one side of each shaft body is matched with a crank, the center of each shaft body is matched with a turbine, and each crank is hinged with a connecting rod through the corresponding bolt; the connecting rods are hinged to rockers through bolts. When the first bolt is not used as an adjusting piece, the degree of freedom is 1, self-locking of the worm gear and the worm is utilized, the structure is a common connecting rod fixing mechanism, and when the first bolt is used as the adjusting piece, the structure comprises a lifting mechanism and a rotating mechanism, operation is convenient, and a crank handle is manually operated; the rotating angle and fixation of the connecting rod are adjusted through the worm gear and the worm, and the problem that adjustment and fixation are inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical production, in particular to an adjustable connecting rod driving device. Background Art

[0002] The connecting rod mechanism is a motion conversion mechanism that uses the input rotational motion to output linear motion to convert linear motion into rotational motion. It has simple structure and good rigidity, which makes the motion transmission accuracy higher and can reduce transmission error. It has stable and reliable structure, flexible and diverse motion, strong load capacity, etc. It is now widely used in various industries.

[0003] When workers are working and repairing, they usually fix parts by hand or by tightening screws, which is inconvenient and easy to fatigue. The operation efficiency is low, especially in online cutting and other environments with motors. The operation is extremely unsafe and does not meet production needs. Ordinary connecting rod mechanisms have a single motion conversion method and lack adjustability. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable connecting rod driving device. When the first bolt is not used as an adjusting member, the degree of freedom is 1. By utilizing the self-locking of the worm gear, the structure is an ordinary connecting rod fixing mechanism. When the first bolt is used as an adjusting member, the structure specifically comprises two mechanisms, lifting and rotating. The connecting rod rotation angle and fixation are adjusted by the worm gear and the worm gear. A height adjuster and a worm gear are added to the hinge structure of the relative transmission connecting rod, so that the adjustment range and self-locking function of the connecting rod mechanism solve the problem of inconvenience in personnel adjustment and fixation.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model is an adjustable connecting rod driving device, comprising a base plate, a crank, a connecting rod and a hinge base, wherein two first bearing seats and two second bearing seats are installed on the base plate, a bearing is installed on each first bearing seat, a bearing is also installed in each second bearing seat, a worm is matched in the bearings in the two second bearing seats, a shaft is matched in the bearings in the two first bearing seats, a turbine is arranged on the shaft, and the turbine matches the worm.

[0007] One end of the crank is hinged to the shaft body, the other end of the crank is hinged to the connecting rod, the hinge base is installed on the base plate through a height adjuster, the end of the hinge base is hinged with a rocker, and the other end of the rocker is hinged to the non-end of the connecting rod.

[0008] Furthermore, the height adjuster is a first bolt, and screw holes are opened on the base plate. The hinge base is installed on the base plate through the first bolt. A pin hole is jointly opened at the bottom of the hinge base and the top of the first bolt. A pin shaft is matched in the pin hole. The hinge base is limited by the pin shaft and the step surface so that it is installed on the base plate following the first bolt.

[0009] Furthermore, the height adjuster is a pneumatic cylinder or a hydraulic cylinder, and the hinge base is installed on the base plate through the pneumatic cylinder or the hydraulic cylinder.

[0010] Furthermore, a first pin sleeve is provided at the end of the connecting rod, and shaft sleeves are provided at both ends of the crank, one of the shaft sleeves is matched with the shaft body, and the other shaft sleeve is connected to the first pin sleeve through a pin; a second pin sleeve is provided at the non-end of the connecting rod, and the end of the rocker is hinged to the second pin sleeve.

[0011] Furthermore, one end of the worm is connected to a handle or a motor.

[0012] The utility model has the following beneficial effects:

[0013] When the first bolt of the utility model is not used as an adjusting member, the degree of freedom is 1. By utilizing the self-locking of the worm gear, the structure is an ordinary connecting rod fixing mechanism. When the first bolt is used as an adjusting member, the structure specifically comprises two mechanisms, namely, lifting and rotating. The operation is convenient. The manual crank handle is used to adjust the connecting rod rotation angle and fixation through the worm gear and worm gear. Compared with the transmission connecting rod hinge structure, the thread height adjustment and the worm gear pair are added, so that the adjustment range and self-locking function of the connecting rod mechanism solve the problem of inconvenience in personnel adjustment and fixation.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an adjustable connecting rod fixing mechanism;

[0016] Figure 2 It is a structural schematic diagram of the left side of the adjustable connecting rod fixing mechanism;

[0017] Figure 3 It is a right side structural schematic diagram of the adjustable connecting rod fixing mechanism;

[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in FIG.

[0019] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0020] Figure 6 It is a structural schematic diagram of the right side of the adjustable connecting rod fixing mechanism;

[0021] Figure 7 It is a schematic diagram of the connection structure of the bottom plate, the latch, the rocker, the hinge base and the first bolt.

[0022] In the figure: 1, base plate; 2, first bearing seat; 3, handle; 4, shaft; 5, crank; 6, turbine; 7, latch; 8, connecting rod; 9, rocker; 10, hinge base; 11, first bolt; 12, worm; 13, second bearing seat; 14, bearing; 15, second bolt; 801, second pin sleeve; 802, first pin sleeve; 16, pin shaft. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: an adjustable connecting rod driving device,

[0025] It can be used as a tool to adjust and fix the machined parts in the production workshop.

[0026] Two first bearing seats 2 and two second bearing seats 13 are installed on the base plate 1 . Specifically, the first bearing seat 2 , the two second bearing seats 13 , the second bolt 15 and the base plate 1 are all provided with corresponding threaded holes and are fixed by the second bolt 15 .

[0027] Bearings 14 are installed on the two first bearing seats 2 and the two second bearing seats 13. The model of the bearing 14 is determined according to the model of the first bearing seat 2 or the second bearing seat 13. The bearings 14 in the two second bearing seats 13 are matched with a worm 12. The bearings 14 in the two first bearing seats 2 are matched with a shaft body 4. A turbine 6 is provided on the shaft body 4. The turbine 6 is matched with the worm 12. One end of the crank 5 is hinged to the shaft body 4, and the crank 5 is locked and driven through the movement of the turbine 6 and the worm 12.

[0028] In addition, one end of the worm 12 is connected to the handle 3 or the motor. When the handle 3 is connected, the drive of the adjustable connecting rod fixing mechanism can be manually controlled without repeated manual operation, such as wire cutting fixation. When the motor is connected, the drive of the adjustable connecting rod fixing mechanism is automatically controlled when repeated manual operation is required, such as the transportation of goods.

[0029] One end of the crank 5 is hinged to the shaft body 4, and the other end of the crank 5 is hinged to the connecting rod 8. Specifically, a first pin sleeve 802 is provided at the end of the connecting rod 8, and shaft sleeves are provided at both ends of the crank 5, one of the shaft sleeves is matched with the shaft body 4, and the other shaft sleeve is connected to the first pin sleeve 802 through a pin 7; a second pin sleeve 801 is provided at the non-end of the connecting rod 8.

[0030] The hinge base 10 is installed on the base plate 1 through a height adjuster. A groove is provided at the bottom of the hinge base 10. The top of the first bolt 11 is located in the groove. The end of the hinge base 10 is hinged with a rocker 9. The end of the hinge base 10 is hinged to the end of the rocker 9 through a latch 7. The other end of the rocker 9 is hinged to the non-end of the connecting rod 8. Figure 2 As described above, the end of the rocking arm 9 is hinged to the second pin sleeve 801 , the second pin sleeve 801 is arranged in the middle of the connecting rod 8 , and the second pin sleeve 801 is hinged to the end of the rocking arm 9 through the latch pin 7 .

[0031] Furthermore, the height adjuster is a first bolt 11, and screw holes are opened on the base plate 1. A pin hole is opened at the bottom of the hinge base 10 and the top of the first bolt 11, and a pin shaft 16 is matched in the pin hole. The hinge base 10 is limited by the pin shaft 16 on the first bolt 11 and the step surface, so that it is installed on the base plate 1 following the first bolt 11. When in use, the first bolt 11 is first engaged with the threaded hole of the base plate 1 to push the hinge base 10 to move to the specified height, and then the pin shaft 16 is inserted into the pin hole to realize the limiting work.

[0032] Furthermore, the height adjuster is a cylinder or a hydraulic cylinder, and the hinge base 10 is installed on the base plate 1 through the cylinder or the hydraulic cylinder.

[0033] A height adjuster is a mechanical device that can adjust the height of equipment or tools. It can quickly adjust the height of equipment and tools, simplify operating steps, save time, and improve work efficiency. By controlling the contact area between the adjusting thread and the tools and equipment, a more stable connection can be achieved to avoid shaking or loosening during work, thereby ensuring the safety of equipment and tools. The height of the equipment or tool can be precisely controlled by fine-tuning the slight changes in the thread to ensure that it meets the required accuracy requirements.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable connecting rod driving device, characterized in that: The invention comprises a base plate (1), wherein two first bearing seats (2) and two second bearing seats (13) are mounted on the base plate (1), a bearing (14) is mounted on each of the first bearing seats (2), a bearing (14) is also mounted in each of the second bearing seats (13), a worm (12) is fitted in the bearings (14) in the two second bearing seats (13), a shaft (4) is fitted in the bearings (14) in the two first bearing seats (2), a turbine (6) is arranged on the shaft (4), and the turbine (6) is fitted with the worm (12); It also comprises a crank (5), a connecting rod (8) and a hinge base (10), wherein one end of the crank (5) is hinged to the shaft (4), the other end of the crank (5) is hinged to the connecting rod (8), the hinge base (10) is mounted on the base plate (1) via a height adjuster, a rocker (9) is hinged to the end of the hinge base (10), and the other end of the rocker (9) is hinged to the non-end portion of the connecting rod (8).

2. The adjustable connecting rod driving device according to claim 1, characterized in that: The height adjuster is a first bolt (11), the base plate (1) is provided with screw holes, the bottom of the hinge base (10) and the top of the first bolt (11) are provided with pin holes, and a pin shaft (16) is fitted in the pin hole.

3. The adjustable connecting rod driving device according to claim 1, characterized in that: The height adjuster is a pneumatic cylinder or a hydraulic cylinder, and the hinge base (10) is mounted on the base plate (1) via the pneumatic cylinder or the hydraulic cylinder.

4. An adjustable connecting rod driving device according to any one of claims 1 to 3, characterized in that: A first pin sleeve (802) is provided at the end of the connecting rod (8), and shaft sleeves are provided at both ends of the crank (5), one shaft sleeve is fitted with the shaft body (4), and the other shaft sleeve is connected to the first pin sleeve (802) via a latch pin; a second pin sleeve (801) is provided at the non-end of the connecting rod (8), and the end of the rocker (9) is hinged to the second pin sleeve (801).

5. The adjustable connecting rod driving device according to claim 4, characterized in that: One end of the worm (12) is connected to a handle (3) or a motor.

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