Reversible transmission mechanism

Abstract

The utility model discloses a reversible transmission mechanism which comprises an electric push rod, a driving gear, a driver, a forward rotation gear, a first transmission shaft and a reverse rotation gear, the driving gear is arranged on a second transmission shaft in a rotating mode, and the second transmission shaft is connected with a guide sleeve on the inner side of a fixing frame. A lug frame and a driver are arranged at the two ends of the fixing frame respectively, a first transmission shaft is arranged on the lug frame through a first connecting shaft, a transmission gear is arranged in the middle of the first transmission shaft, and a forward rotation gear and a reverse rotation gear are arranged at the two ends of the first transmission shaft respectively. The fixing frame is provided with the driving gear, the driving gear is rotationally connected with the second transmission shaft, the lug frame is arranged at the end of the fixing frame, the lug frame is rotationally connected with the first transmission shaft through the first connecting shaft, and the first transmission shaft is provided with the forward rotation gear and the reverse rotation gear. The transmission mechanism can be used in a forward and reverse rotation switching mode according to transmission requirements, and the universality of the transmission mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the field of transmission mechanisms, and specifically relates to a reversible transmission mechanism. Background Technique

[0002] The transmission mechanism is used for double-sided grinding transmission control to facilitate automatic grinding control. A grinding machine is a grinding machine that grinds the surface of a workpiece with a grinding tool coated or embedded with abrasive. It is mainly used for grinding high-precision planes, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, thread surfaces and other profiles in workpieces. The main types of grinding machines include disk grinding machines, shaft-type grinding machines and various special grinding machines;

[0003] For example, the authorized patent with the publication number CN210335532U (grinding machine transmission mechanism with separated rotation and revolution): It includes a motor, the output shaft of the motor is arranged vertically downward, and an output shaft first gear and an output shaft second gear are respectively arranged on the output shaft from top to bottom. The output shaft realizes transmission through two meshing forward revolution transition gears and three reverse revolution transition gears. A clutch mechanism is connected to the upper ends of the forward revolution second transition gear and the reverse revolution third transition gear through flanges. All the above transition gears and the output shaft first gear are wrapped by a first gear box; the output shaft second gear realizes the rotation of the planetary grinding wheel output assembly through four symmetric planetary grinding wheel transition gears on the left and right sides. All the above planetary grinding wheel transition gears and the output shaft second gear are wrapped by a second gear box. The grinding machine transmission mechanism with separated rotation and revolution has a simple and reasonable structure, and is convenient and efficient;

[0004] In the above prior art, the transmission process cannot be bidirectionally controlled, and a kind of reversible transmission control cannot be carried out, so that the grinding process cannot be calibrated for forward and reverse rotation, and the position of the driving gear cannot be adjusted during control, the use is not flexible enough, the adjustment process is not intelligent enough, and automatic forward and reverse control cannot be carried out. Content of the Utility Model

[0005] The purpose of the utility model is to provide a reversible transmission mechanism to solve the problems in the above background technique that the transmission process cannot be bidirectionally controlled, a kind of reversible transmission control cannot be carried out, so that the grinding process cannot be calibrated for forward and reverse rotation, and the position of the driving gear cannot be adjusted during control, the use is not flexible enough, the adjustment process is not intelligent enough, and automatic forward and reverse control cannot be carried out.

[0006] To achieve the above object, the present utility model provides the following technical solution: A reversible transmission mechanism, comprising an electric push rod, a driving gear, a driver, a forward rotation gear, a first transmission shaft and a reverse rotation gear. The driving gear is arranged on the second transmission shaft in a rotatable manner. The second transmission shaft is connected to a guide sleeve inside the fixed frame. The two ends of the fixed frame are respectively provided with an ear frame and a driver. The first transmission shaft is provided on the ear frame through a first connecting shaft. A transmission gear is arranged in the middle of the first transmission shaft. The forward rotation gear and the reverse rotation gear are respectively arranged at the two ends of the first transmission shaft.

[0007] In a further embodiment, an electric push rod is arranged on one side of the fixed frame. A telescopic rod is arranged inside the electric push rod. The end of the telescopic rod is connected to the second transmission shaft.

[0008] In a further embodiment, a guide head is arranged at the end of the second transmission shaft. The guide head is in guiding connection with the guide sleeve.

[0009] In a further embodiment, a motor is arranged on the other side of the fixed frame. The output shaft of the motor is connected to the middle of the driving gear through a transmission rod. The transmission rod passes through the second transmission shaft.

[0010] In a further embodiment, first connecting shafts are arranged at both ends of the first transmission shaft. The first connecting shafts are rotatably connected to the ear frame. The two ends of the first connecting shaft are respectively provided with a first transmission head and a second transmission head.

[0011] In a further embodiment, the output end of the driver is electrically connected to the input end of the motor. The driving gear is in gear transmission connection with the forward rotation gear and the reverse rotation gear.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In this utility model, the driving gear is arranged on the fixed frame and is rotatably connected to the second transmission shaft. An ear frame is arranged at the end of the fixed frame. The ear frame is rotatably connected to the first transmission shaft through a first connecting shaft. The forward rotation gear and the reverse rotation gear are arranged on the first transmission shaft, enabling it to be switched between forward and reverse rotations according to the transmission requirements, thus increasing the versatility of the transmission mechanism.

[0014] The driving gear of this utility model is arranged on the second transmission shaft, and the second transmission shaft is connected to the end of the telescopic rod inside the electric push rod, enabling it to control the lateral movement of the driving gear, so that the driving gear can be switched between the forward rotation gear and the reverse rotation gear. Automatic control is convenient. A transmission gear is arranged in the middle of the first transmission shaft, enabling it to drive the transmission gear to rotate. Moreover, multi-directional transmission control can be carried out through the first transmission head and the second transmission head, and the use is relatively flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Structural schematic diagram of a reversible transmission mechanism of the present utility model;

[0016] Figure 2 Structural schematic diagram of the first transmission shaft of the present utility model;

[0017] Figure 3 Front view of the driving gear of the present utility model;

[0018] Figure 4 Structural schematic diagram of part A of the present utility model.

[0019] In the figure: 1, ear bracket; 2, first driving head; 3, first connecting shaft; 4, electric push rod; 5, driving gear; 6, fixing bracket; 7, driver; 8, forward rotation gear; 9, transmission gear; 10, first transmission shaft; 11, motor; 12, reverse rotation gear; 13, second driving head; 14, second transmission shaft; 15, guide head; 16, telescopic rod; 17, guide sleeve. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a reversible transmission mechanism, including an electric push rod 4, a driving gear 5, a driver 7, a forward rotation gear 8, a first transmission shaft 10, and a reverse rotation gear 12. The driving gear 5 is arranged on the second transmission shaft 14 in a rotating manner. The second transmission shaft 14 is connected to the guide sleeve 17 inside the fixing bracket 6. Ear brackets 1 and drivers 7 are respectively arranged at both ends of the fixing bracket 6. A first transmission shaft 10 is arranged on the ear bracket 1 through a first connecting shaft 3. A transmission gear 9 is arranged in the middle of the first transmission shaft 10. Forward rotation gears 8 and reverse rotation gears 12 are respectively arranged at both ends of the first transmission shaft 10; the lateral adjustment of the driving gear 5 can be driven through the second transmission shaft 14. The installation of the second transmission shaft 14 is facilitated through the guide sleeve 17. The installation of the first transmission shaft 10 is facilitated through the ear bracket 1. The motor 11 can be intelligently controlled through the driver 7. The forward and reverse rotation of the grinding disc can be controlled through the forward rotation gear 8 and the reverse rotation gear 12.

[0022] One side of the fixing frame 6 is provided with an electric push rod 4. An expansion rod 16 is arranged inside the electric push rod 4. The end of the expansion rod 16 is connected to the second transmission shaft 14. The electric push rod 4 is used to control the expansion and contraction of the expansion rod 16. A guide head 15 is arranged at the end of the second transmission shaft 14. The guide head 15 is in guiding connection with the guide sleeve 17. The guide head 15 facilitates the guiding connection between the second transmission shaft 14 and the guide sleeve 17. The other side of the fixing frame 6 is provided with a motor 11. The output shaft of the motor 11 is connected to the middle of the driving gear 5 through a transmission rod. The transmission rod is arranged through the second transmission shaft 14. The motor 11 drives the transmission rod to rotate, and the transmission rod drives the driving gear 5 to rotate.

[0023] Both ends of the first transmission shaft 10 are provided with first connecting shafts 3. The first connecting shafts 3 are rotationally connected to the ear frame 1. The two ends of the first connecting shaft 3 are respectively provided with a first transmission head 2 and a second transmission head 13. The first connecting shaft 3 can be rotationally connected to the ear frame 1.

[0024] The output end of the driver 7 is electrically connected to the input end of the motor 11. The driving gear 5 is in gear transmission connection with the forward rotation gear 8 and the reverse rotation gear 12.

[0025] Working principle: During use, the motor 11 drives the driving gear 5 to rotate. The electric push rod 4 controls the expansion and contraction of the expansion rod 16, so that the expansion rod 16 pulls the second transmission shaft 14 to expand and contract in the guide sleeve 17, enabling the driving gear 5 to be in gear transmission with the forward rotation gear 8, driving the first transmission shaft 10 to rotate forward. When the driving gear 5 is in gear transmission with the reverse rotation gear 12, it drives the first transmission shaft 10 to rotate in reverse. The first transmission head 2 and the second transmission head 13 are used for transmission. The driver 7 can automatically control the operation of the motor 11. The grinding disc of the grinding machine can be driven to rotate through the transmission gear 9. The first connecting shaft 3 facilitates the rotational connection with the ear frame 1.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A reversible transmission mechanism, comprising an electric push rod (4), a driving gear (5), a driver (7), a forward gear (8), a first transmission shaft (10) and a reverse gear (12), characterized in that: The driving gear (5) is rotatably mounted on a second transmission shaft (14); the second transmission shaft (14) is connected to a guide sleeve (17) on the inner side of a fixed frame (6); an ear frame (1) and a driver (7) are respectively provided at two ends of the fixed frame (6); a first transmission shaft (10) is provided on the ear frame (1) via a first connecting shaft (3); a transmission gear (9) is provided in the middle of the first transmission shaft (10); and a forward gear (8) and a reverse gear (12) are respectively provided at two ends of the first transmission shaft (10).

2. A reversible transmission mechanism according to claim 1, characterized in that: An electric push rod (4) is provided on one side of the fixing frame (6), a telescopic rod (16) is provided inside the electric push rod (4), and an end of the telescopic rod (16) is connected to the second transmission shaft (14).

3. A reversible transmission mechanism according to claim 1, characterized in that: A guide head (15) is provided at the end of the second transmission shaft (14), and the guide head (15) is connected to the guide sleeve (17) in a guiding manner.

4. A reversible transmission mechanism according to claim 1, characterized in that: A motor (11) is provided on the other side of the fixing frame (6), and an output shaft of the motor (11) is connected to the middle of the driving gear (5) via a transmission rod, and the transmission rod is arranged through the second transmission shaft (14).

5. A reversible transmission mechanism according to claim 1, characterized in that: Both ends of the first transmission shaft (10) are provided with a first connecting shaft (3), the first connecting shaft (3) is rotatably connected to the ear frame (1), and the two ends of the first connecting shaft (3) are respectively provided with a first transmission head (2) and a second transmission head (13).

6. A reversible transmission mechanism according to claim 1, characterized in that: The output end of the driver (7) is electrically connected to the input end of the motor (11), and the driving gear (5) is gear-drivenly connected to the forward gear (8) and the reverse gear (12).

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