Electric saw driving device

Abstract

The utility model provides an electric saw driving device, including a housing assembly, a motor, a control circuit board, and a driving shaft arranged in the housing assembly, wherein the driving shaft is connected to the output shaft of the motor through a gear transmission mechanism; an oil pump is arranged on the housing assembly, an oil inlet pipe and an oil outlet pipe are connected to the oil pump, an eccentric wheel is arranged on the driving shaft, one end of a driving rod on the oil pump is connected to a transmission ring, and the transmission ring is sleeved on the outer side of the eccentric wheel; when the driving shaft rotates, the eccentric wheel is driven to rotate, and when the eccentric wheel rotates, the piston in the oil pump is driven to reciprocate through the transmission ring and the driving rod. In the utility model, a set of driving devices can simultaneously drive the saw chain to rotate and the oil pump to operate, thereby reducing the number of power driving devices on the electric saw, thereby reducing the complexity of the electric saw structure and reducing the manufacturing cost of the electric saw; and the oil pump is integrated in the housing assembly of the driving device, and the overall structure is compact, which reduces the space required for installation and is conducive to the miniaturization of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of electric saws, in particular to an electric saw driving device. Background Art

[0002] Electric saw is a sawing tool powered by an electric motor, which is widely used in wood processing, forestry, construction, metal processing and other industries. It drives the saw chain to rotate through a driving device, and cuts the material through the saw chain. Compared with traditional manual saws, it has higher efficiency and cutting capacity.

[0003] The driving device in an electric saw is usually a combination of a motor and a reduction gearbox. The output power of the motor is transmitted to the gearbox, which reduces the speed to increase the output torque, and then outputs the power to the saw chain to drive the saw chain to rotate.

[0004] Existing electric saws usually need to be equipped with a lubrication system, which is used to supply lubricating oil to the saw chain to lubricate the saw chain, reduce the chance of the saw chain getting stuck during rotation, and reduce the wear of the saw chain to increase the service life of the saw chain. In order to lubricate the saw chain, in addition to the drive device, the saw chain also needs to be equipped with an additional oil pump to transport the lubricating oil. The oil pump is driven by a separate power device, which results in the need for at least two power drive devices (motors) on the electric saw, which increases the complexity of the overall structure and manufacturing cost of the electric saw. Summary of the invention

[0005] The utility model aims to solve the deficiencies in the prior art and provide an electric saw driving device.

[0006] The purpose of the utility model is achieved through the following technical solutions: an electric saw driving device, including a shell assembly, a motor, a control circuit board, and a driving shaft arranged in the shell assembly, the driving shaft and the output shaft of the motor are connected through a gear transmission mechanism; an oil pump is arranged on the shell assembly, an oil inlet pipe and an oil outlet pipe are connected to the oil pump, an eccentric wheel is arranged on the driving shaft, one end of a driving rod on the oil pump is connected to a transmission ring, and the transmission ring is sleeved on the outer side of the eccentric wheel; when the driving shaft rotates, the eccentric wheel is driven to rotate, and when the eccentric wheel rotates, the piston in the oil pump is driven to reciprocate through the transmission ring and the driving rod.

[0007] In the utility model, the output power of the motor is transmitted to the drive shaft through the gear transmission mechanism. The drive shaft is connected to the saw chain on the motor and drives the saw chain to rotate. At the same time, when the drive shaft rotates, it drives the eccentric wheel to rotate. When the eccentric wheel rotates, it drives the drive rod to move. The oil pump adopts a piston oil pump. The drive rod drives the piston in the oil pump to move back and forth, thereby driving the oil pump to operate. Lubricant enters the oil pump from the oil inlet pipe and is then discharged from the oil outlet pipe to realize the delivery of lubricating oil. In the utility model, a set of driving devices can simultaneously drive the saw chain to rotate and the oil pump to operate, which reduces the number of power driving devices (motors) on the electric saw, thereby reducing the complexity of the electric saw structure and reducing the manufacturing cost of the electric saw. In addition, the oil pump is integrated in the housing assembly of the driving device, and the overall structure is compact, which reduces the space required for installation and is conducive to the miniaturization of the product.

[0008] Preferably, a control circuit board is provided in the housing assembly, and the control circuit board is arranged on one side of the motor.

[0009] Preferably, the oil pump is a piston oil pump.

[0010] Preferably, the gear transmission mechanism comprises a first gear arranged on the motor output shaft and a second gear arranged on the drive shaft, and the first gear and the second gear are meshed.

[0011] Preferably, the housing assembly consists of a first half shell and a second half shell.

[0012] Preferably, the first half shell and the second half shell are connected by screws or buckles.

[0013] Preferably, the housing assembly is provided with a motor installation cavity for installing the motor, a drive shaft positioning hole for installing the drive shaft, and a control circuit board installation cavity for installing the control circuit board.

[0014] The beneficial effects of the utility model are as follows: in the utility model, a set of driving devices can simultaneously drive the saw chain to rotate and the oil pump to operate, thereby reducing the number of power driving devices (motors) on the electric saw, thereby reducing the complexity of the electric saw structure and reducing the manufacturing cost of the electric saw. In addition, the oil pump is integrated into the housing assembly of the driving device, and the overall structure is compact, which reduces the space required for installation and is conducive to the miniaturization of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] Figure 3 It is a schematic structural diagram of the second half shell.

[0018] In the figure: 1. housing assembly, 1-1. first half housing, 1-2. second half housing, 2. drive shaft, 3. oil pump, 4. oil inlet pipe, 5. oil outlet pipe, 6. motor, 7. control circuit board, 8. first gear, 9. second gear, 10. eccentric wheel, 11. transmission ring, 12. drive rod, 13. motor mounting cavity, 14. control circuit board mounting cavity, 15. drive shaft positioning hole, 16. oil pump positioning groove. DETAILED DESCRIPTION

[0019] 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 belong to the scope of protection of the utility model.

[0020] like Figures 1 to 3 As shown, an electric saw driving device includes a shell assembly 1, a motor 6, a control circuit board 7, and a driving shaft 2 are arranged in the shell assembly 1, and the driving shaft 2 is connected to the output shaft of the motor 6 through a gear transmission mechanism; an oil pump 3 is arranged on the shell assembly, and an oil inlet pipe 4 and an oil outlet pipe 5 are connected to the oil pump 3, an eccentric wheel 10 is arranged on the driving shaft 2, and one end of a driving rod 12 on the oil pump 3 is connected to a transmission ring 11, and the transmission ring 11 is sleeved on the outer side of the eccentric wheel 10, and the transmission ring 11 is in a circular ring shape. When the driving shaft 2 rotates, the eccentric wheel 10 is driven to rotate, and when the eccentric wheel 10 rotates, the piston in the oil pump 3 is driven to reciprocate through the transmission ring 11 and the driving rod 12.

[0021] The oil pump 3 is a piston oil pump. The piston oil pump 3 relies on the reciprocating movement of the internal piston to realize the suction and discharge of lubricating oil, thereby realizing the delivery of lubricating oil. The lubricating oil is sucked into the oil pump 3 through the oil inlet pipe 4 and discharged from the oil outlet pipe 5. Both the oil inlet pipe 4 and the oil outlet pipe 5 are provided with a one-way valve; when the oil pump 3 is inletting oil, the one-way valve on the oil inlet pipe 4 is turned on, and the one-way valve on the oil outlet pipe 5 is turned off; when the oil pump 3 is discharging oil, the one-way valve on the oil inlet pipe 4 is turned off, and the one-way valve on the oil outlet pipe 5 is turned on.

[0022] In the utility model, the output power of the motor 6 is transmitted to the drive shaft 2 through the gear transmission mechanism. The drive shaft 2 is connected to the saw chain on the motor 6 and drives the saw chain to rotate. At the same time, when the drive shaft 2 rotates, it drives the eccentric wheel 10 to rotate. When the eccentric wheel 10 rotates, it drives the drive rod 12 to move. The oil pump 3 adopts a piston oil pump 3. The drive rod 12 drives the piston in the oil pump 3 to move back and forth, thereby driving the oil pump 3 to operate. The lubricant enters the oil pump 3 from the oil inlet pipe 4 and is then discharged from the oil outlet pipe 5 to realize the delivery of the lubricating oil. In the utility model, a set of driving devices can simultaneously drive the saw chain to rotate and the oil pump 3 to operate, thereby reducing the number of power driving devices (motor 6) on the electric saw, thereby reducing the complexity of the electric saw structure and reducing the manufacturing cost of the electric saw. In addition, the oil pump 3 is integrated in the housing assembly of the driving device, and the overall structure is compact, which reduces the space required for installation and is conducive to the miniaturization of the product.

[0023] A control circuit board 7 is provided in the housing assembly, and the control circuit board 7 is arranged on one side of the motor 6. The control circuit board 7 is used to control the operation of the motor 6. The control circuit board 7 is arranged on one side of the motor 6, and a certain distance is spaced between the control circuit board 7 and the motor 6, thereby reducing the influence on the heat dissipation of the motor 6.

[0024] The housing assembly is composed of a first half housing 1-1 and a second half housing 1-2. The first half housing 1-1 and the second half housing 1-2 are connected by screws or buckles. The housing assembly is provided with a motor installation cavity 13 for installing the motor 6, a drive shaft positioning hole 15 for installing the drive shaft 2, and a control circuit board installation cavity 14 for installing the control circuit board 7. The motor 6 is embedded in the motor installation cavity 13, the drive shaft 2 is embedded in the drive shaft positioning hole 15, and the control circuit board 7 is embedded in the circuit board installation cavity. In addition, the housing assembly is also provided with an oil pump positioning groove 16 for installing the oil pump 3, and the oil pump 3 is embedded in the oil pump positioning groove 16, so that the oil pump 3 is integrated on the electric saw drive device.

[0025] The gear transmission mechanism includes a first gear 8 provided on the output shaft of the motor 6 and a second gear 9 provided on the drive shaft 2, and the first gear 8 and the second gear 9 are meshed. The number of teeth of the second gear 9 is greater than the number of teeth of the first gear 8. The output shaft of the motor 6 drives the first gear 8 to rotate, and when the first gear 8 rotates, it drives the second gear 9 to rotate, and the second gear 9 drives the drive shaft 2 to rotate, and the power output is realized through the drive shaft 2.

[0026] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A chainsaw driving device, characterized in that: It includes a shell assembly, a motor, a control circuit board and a drive shaft are arranged inside the shell assembly, and the drive shaft is connected to the output shaft of the motor through a gear transmission mechanism; there is an oil pump on the shell assembly, and an oil inlet pipe and an oil outlet pipe are connected to the oil pump, an eccentric wheel is arranged on the drive shaft, and one end of a drive rod on the oil pump is connected to a transmission ring, and the transmission ring is sleeved on the outer side of the eccentric wheel; when the drive shaft rotates, it drives the eccentric wheel to rotate, and when the eccentric wheel rotates, it drives the piston in the oil pump to reciprocate through the transmission ring and the drive rod.

2. The electric saw driving device according to claim 1, characterized in that: A control circuit board is arranged in the housing assembly, and the control circuit board is arranged on one side of the motor.

3. The electric saw driving device according to claim 1, characterized in that: The oil pump is a piston type oil pump.

4. The electric saw driving device according to claim 1, characterized in that: The gear transmission mechanism comprises a first gear arranged on the output shaft of the motor and a second gear arranged on the driving shaft, and the first gear is meshed with the second gear.

5. The electric saw driving device according to any one of claims 1 to 4, characterized in that: The housing assembly consists of a first half shell and a second half shell.

6. The electric saw driving device according to claim 5, characterized in that: The first half shell and the second half shell are connected by screws or buckles.

7. The electric saw driving device according to claim 5, characterized in that: The housing assembly is provided with a motor installation cavity for installing the motor, a drive shaft positioning hole for installing the drive shaft, and a control circuit board installation cavity for installing the control circuit board.

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