Electric log splitter

Abstract

The utility model relates to the technical field of wood splitting machines, and discloses an electric wood splitting machine which comprises a control valve and a power head, the power head comprises a battery pack, a motor and a controller, the battery pack and the controller are respectively connected with the motor, a proximity switch is arranged on the control valve, an induction piece is arranged in the control valve, and the proximity switch is in signal connection with the induction piece and the controller. The battery is used as an energy source, pollution of fossil fuel is avoided, the device can be used in an environment without mains supply, more electric control technologies are used, and the device is simpler and more efficient to use and operate; the non-contact proximity switch is arranged on the self-resetting control valve, when the control valve is reset to the neutral position and no operation is carried out within the set time, the proximity switch informs the controller of closing the motor and closing the battery pack through signals, and therefore the purposes of saving energy and being safe are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wood splitters, in particular to an electric wood splitter. Background Art

[0002] A wood splitter is a kind of agricultural and forestry equipment used to split wood. It transmits the movement and energy of the power source to the working piece through a transmission mechanism or medium, and splits the wood by squeezing the working piece.

[0003] Most existing wood splitters use gasoline or city electricity as energy. Among them, wood splitters powered by gasoline have a negative impact on the environment due to exhaust emissions and fuel evaporation emissions. Wood splitters powered by city electricity have limited scope of use and cannot be used in places without city electricity. Existing wood splitters generally do not use electronic control and electric auxiliary technologies on a large scale. For example, wood splitters powered by gasoline engines need to be started manually during the startup process. This process requires human drive and has certain physical and technical requirements for the user. During use, the machine cannot recognize whether the operator has left. When the user is away for a long time, the machine cannot shut down by itself, which poses certain risks and wastes energy.

[0004] The wood splitter of the utility model patent with publication number CN213766287U and CN202399351U uses gasoline and city electricity as energy sources, and uses a gasoline engine and an electric motor as power sources, respectively. The motion and energy are transmitted to the cutter head through a hydraulic motor, a control valve, and an oil cylinder, and the cutter head reciprocates to split the wood.

[0005] The utility model patent wood splitter with the publication number CN220227910U discloses a reversing control valve and an electric wood splitter. The reversing control valve includes: a valve body, a start switch and a valve core slidably arranged in the valve body. A position switch is fixedly installed at the front end of the valve body, and a handle is connected to the rear end through a hinge. The start switch and the position switch are simultaneously connected to the control circuit of an external oil pump; the front end of the valve core extends out of the valve body to cooperate with the position switch, and the rear end extends out of the valve body and is hingedly connected to the middle part of the handle; when the valve core slides forward or backward relative to the valve body under the drive of the handle, the front end of the valve core triggers the start position switch to close the start switch and the control circuit of the external oil pump so that the oil pump supplies oil to the working oil port. The position switch used in the control valve in the above patent is a micro switch, which is a contact type. The front end of the valve core needs to trigger the start position switch, which makes the overall structure of the control valve complex and the manufacturing cost high. Utility Model Content

[0006] The utility model aims at the shortcomings of the prior art and provides an electric wood splitter.

[0007] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] An electric wood splitter comprises a control valve and a power head. The power head comprises a battery pack, a motor and a controller. The battery pack and the controller are respectively connected to the motor. A proximity switch is arranged on the control valve. A sensing element is arranged inside the control valve. The proximity switch is connected to the sensing element and the controller signal.

[0009] Preferably, a proximity switch mounting shell is provided at the rear end of the control valve, the proximity switch is installed on the proximity switch mounting shell, a valve core is provided at the front end of the control valve, the valve core is connected to the sensing element and drives the sensing element to move in the proximity switch mounting shell, and the valve core is connected to a control handle.

[0010] Preferably, the electric wood splitter also includes a coupling, a hydraulic motor, a cylinder and an oil tank, the motor is connected to the coupling, the coupling is connected to the hydraulic motor, the hydraulic motor is connected to the oil tank and a control valve through an oil pipe, and the control valve is connected to the oil tank and the oil cylinder through an oil pipe.

[0011] Preferably, the control valve is installed on the side of the oil cylinder, an oil inlet is provided at the bottom of the control valve, an oil outlet is provided at the top of the control valve, the oil inlet is connected to the hydraulic motor through an oil pipe, and the oil outlet is connected to the oil tank through an oil pipe. A front opening and a rear opening are provided on the side of the control valve close to the oil cylinder, the front opening is connected to the front end of the oil cylinder through an oil pipe, and the rear opening is connected to the tail of the oil cylinder through an oil pipe.

[0012] Preferably, the electric wood splitter also includes a frame and a main beam, the frame is installed on the main beam, the front end of the main beam is connected to the fuel tank, the rear end of the main beam is connected to a foot support, a baffle is provided at the front end of the frame, the cylinder is installed at the rear end of the frame, an axe is installed at the front end of the cylinder, wheels are connected to both ends of the fuel tank, a power head base is installed at the bottom of the fuel tank, and the power head is installed on the power head base.

[0013] Preferably, the control valve is installed on the upper side of the oil cylinder, an oil inlet is provided on one side of the control valve, and an oil outlet is provided on the other side of the control valve, the oil inlet is connected to the hydraulic motor through an oil pipe, and the oil outlet is connected to the oil tank through an oil pipe, and a front opening and a rear opening are provided at the bottom of the control valve, the front opening is connected to the front end of the oil cylinder through an oil pipe, and the rear opening is connected to the tail of the oil cylinder through an oil pipe.

[0014] Preferably, the electric wood splitter also includes a fixed frame, the power head and the fuel tank are installed on the fixed frame, the fuel cylinder is installed at the rear end of the fuel tank, a baffle is installed at the front end of the fuel cylinder, an axe is installed at the top of the front end of the fuel tank, a foot support is installed at the bottom of the front end of the fuel tank, and wheels are connected to both ends of the fixed frame.

[0015] Preferably, the power head also includes a shell, and the battery pack, motor and controller are all installed in the shell. A key switch for starting the battery pack is also provided in the shell, and a button switch for starting the motor is also provided in the shell.

[0016] Preferably, the housing is also provided with a snap assembly for fixing the battery pack.

[0017] The utility model has remarkable technical effects due to the adoption of the above technical scheme: the utility model uses batteries as energy, thus avoiding the pollution of fossil fuels and can be used in an environment without mains electricity, and more electronic control technology is used, which makes the operation simpler and more efficient; a non-contact proximity switch is arranged on the self-resetting control valve, and when the control valve is reset to the neutral position and there is no operation within the set time, the proximity switch signal informs the controller to turn off the motor and the battery pack, thereby achieving the purpose of energy saving and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the location of the sensor and proximity switch.

[0020] Figure 3 It is a schematic diagram of the connection relationship between the hydraulic motor, oil tank and control valve.

[0021] Figure 4 It is a schematic diagram of the installation structure of the power head and the power head base.

[0022] Figure 5 It is a structural diagram of the power head.

[0023] Figure 6 This is a schematic diagram of the location of the battery pack, key switch, and push button switch.

[0024] Figure 7 This is a schematic diagram of the location of the battery pack, motor and controller.

[0025] Figure 8 It is a structural schematic diagram of the second type of control valve.

[0026] Fig. 9 It is a schematic diagram of the positions of the oil inlet, oil outlet, front opening and rear opening on the second type of control valve.

[0027] Fig.10 It is a schematic diagram of the structure of the second type of wood splitter.

[0028] Fig.11 It is a schematic diagram of the structure of the power head and the fixing bracket.

[0029] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1-control valve, 101-sensing element, 102-oil inlet, 103-oil outlet, 104-front opening, 105-rear opening, 106-valve core, 107-control handle, 108-proximity switch mounting shell, 2-power head, 201-battery pack, 202-motor, 203-controller, 204-housing, 205-key switch, 206-button switch, 207-buckle assembly, 3-proximity switch, 4-coupling, 5-hydraulic motor, 6-oil cylinder, 7-oil tank, 8-frame, 9-main beam, 10-foot support, 11-baffle, 12-axe, 13-wheel, 14-power head base, 15-fixed frame. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-11 The utility model is further described in detail with examples.

[0031] Example 1

[0032] An electric wood splitter includes a control valve 1 and a power head 2. The power head 2 includes a battery pack 201, a motor 202 and a controller 203. The battery pack 201 and the controller 203 are respectively connected to the motor 202. A proximity switch 3 is provided on the control valve 1. In this embodiment, the proximity switch 3 is connected to the battery pack 201 through a wire. A sensing element 101 is provided in the control valve 1. The proximity switch 3 is connected to the sensing element 101 and the controller 203 by signal. In this embodiment, when the sensing element 101 is in neutral, it approaches the proximity switch 3 and enters the sensing range of the proximity switch 3. The proximity switch 3 senses that the controller 203 starts timing. When the set time is reached, the controller 203 turns off the motor 202; when the sensing element 101 leaves the sensing range of the proximity switch 3, the controller 203 restarts the motor 202.

[0033] A proximity switch mounting shell 108 is provided at the rear end of the control valve 1, and the proximity switch 3 is installed on the proximity switch mounting shell 108. In this embodiment, the proximity switch 3 is installed outside the proximity switch mounting shell 108. A valve core 106 is provided at the front end of the control valve 1. The valve core 106 is connected to the sensor 101 and drives the sensor 101 to move in the proximity switch mounting shell 108. The valve core 106 is connected to the control handle 107.

[0034] The electric wood splitter also includes a coupling 4, a hydraulic motor 5, a cylinder 6 and a fuel tank 7. The motor 202 is connected to the coupling 4, the coupling 4 is connected to the hydraulic motor 5, the hydraulic motor 5 is connected to the fuel tank 7 and the control valve 1 through an oil pipe, and the control valve 1 is connected to the fuel tank 7 and the fuel cylinder 6 through an oil pipe.

[0035] The control valve 1 is installed on the side of the oil cylinder 6, and an oil inlet 102 is provided at the bottom of the control valve 1, and an oil outlet 103 is provided at the top of the control valve 1. The oil inlet 102 is connected to the hydraulic motor 5 through an oil pipe. In this embodiment, the oil pipe connected between the oil inlet 102 and the hydraulic motor 5 is a high-pressure oil pipe, and the oil outlet 103 is connected to the oil tank 7 through an oil pipe. In this embodiment, the oil pipe connected between the oil outlet 103 and the oil tank 7 is a low-pressure oil pipe. A front opening 104 and a rear opening 105 are provided on the side of the control valve 1 close to the oil cylinder 6. The front opening 104 is connected to the front end of the oil cylinder 6 through an oil pipe, and the rear opening 105 is connected to the tail of the oil cylinder 6 through an oil pipe.

[0036] The electric wood splitter also includes a frame 8 and a main beam 9, the frame 8 is mounted on the main beam 9, the front end of the main beam 9 is connected to the oil tank 7, the rear end of the main beam 9 is connected to a foot support 10, the front end of the frame 8 is provided with a baffle 11, the oil cylinder 6 is mounted on the rear end of the frame 8, the front end of the oil cylinder 6 is equipped with an axe 12, the two ends of the oil tank 7 are connected to wheels 13, the bottom of the oil tank 7 is equipped with a power head base 14, and the power head 2 is installed on the power head base 14. In this embodiment, the main beam 9 and the wheels 13 are used for moving and transferring the wood splitter.

[0037] The power head 2 also includes a housing 204 , in which the battery pack 201 , the motor 202 and the controller 203 are all installed. A key switch 205 for starting the battery pack 201 and a button switch 206 for starting the motor 202 are also provided in the housing 204 .

[0038] Working principle: insert the key switch 205, press the button switch 206, the battery pack 201 and the motor 202 start, the control handle 107 moves to forward, neutral and reverse positions, the control handle 107 drives the valve core 106 to move and then drives the sensor 101 to move;

[0039] When the handle is in the forward position, the user will release the handle and the control valve 1 will automatically return to the neutral position after the axe 12 returns to its original position. When the handle is in the neutral position, the user will not operate it and the control valve 1 will automatically return to the neutral position after the axe 12 returns to its original position.

[0040] After the wood splitter is turned on, the hydraulic motor 5 is running regardless of whether it is splitting wood or not, and it consumes energy. In this embodiment, the energy consumed is the electric energy of the battery pack 201. The forward and backward movement of the axe 12 are necessary steps for splitting wood, and the axe 12 does not work when in neutral. In order to save energy, this embodiment sets a proximity switch 3 on the control valve 1; when the control valve 1 is in the neutral state for a long time, the specific setting is based on comprehensive consideration of usage habits and energy consumption; when in neutral, the sensor 101 in the control valve 1 is close to the proximity switch 3 and enters the sensing range of the proximity switch 3. The proximity switch 3 senses the controller 203 and starts timing. After the set time is reached, the controller 203 turns off the motor 202; when the sensor 101 leaves the sensing range of the proximity switch 3, the controller 203 restarts the motor 202.

[0041] Example 2

[0042] The difference between Example 2 and Example 1 is that: the control valve 1 is installed on the upper side of the cylinder 6, an oil inlet 102 is provided on one side of the control valve 1, and an oil outlet 103 is provided on the other side of the control valve 1, the oil inlet 102 is connected to the hydraulic motor 5 through an oil pipe, and the oil outlet 103 is connected to the oil tank 7 through an oil pipe, and a front opening 104 and a rear opening 105 are provided at the bottom of the control valve 1, the front opening 104 is connected to the front end of the cylinder 6 through an oil pipe, and the rear opening 105 is connected to the tail of the cylinder 6 through an oil pipe.

[0043] The electric wood splitter also includes a fixed frame 15, a power head 2 and a fuel tank 7 are mounted on the fixed frame 15, a fuel cylinder 6 is mounted at the rear end of the fuel tank 7, a baffle 11 is mounted at the front end of the fuel cylinder 6, an axe 12 is mounted on the top of the front end of the fuel tank 7, a foot support 10 is mounted at the bottom of the front end of the fuel tank 7, and wheels 13 are connected to both ends of the fixed frame 15.

[0044] Example 3

[0045] The difference between Example 3 and Example 1 is that a buckle assembly 207 for fixing the battery pack 201 is further provided on the housing 204 .

Claims

1. An electric wood splitter, comprising a control valve (1) and a power head (2), wherein the power head (2) comprises a battery pack (201), a motor (202) and a controller (203), wherein the battery pack (201) and the controller (203) are respectively connected to the motor (202), and characterized in that: A proximity switch (3) is provided on the control valve (1), a sensing element (101) is provided inside the control valve (1), and the proximity switch (3) is signal-connected to the sensing element (101) and the controller (203).

2. An electric wood splitter according to claim 1, characterized in that: A proximity switch mounting shell (108) is provided at the rear end of the control valve (1), and the proximity switch (3) is mounted on the proximity switch mounting shell (108). A valve core (106) is provided at the front end of the control valve (1), and the valve core (106) is connected to the sensing element (101) and drives the sensing element (101) to move in the proximity switch mounting shell (108). The valve core (106) is connected to a control handle (107).

3. An electric wood splitter according to claim 1, characterized in that: It also includes a coupling (4), a hydraulic motor (5), an oil cylinder (6) and an oil tank (7); the motor (202) is connected to the coupling (4); the coupling (4) is connected to the hydraulic motor (5); the hydraulic motor (5) is connected to the oil tank (7) and the control valve (1) through an oil pipe; and the control valve (1) is connected to the oil tank (7) and the oil cylinder (6) through an oil pipe.

4. An electric wood splitter according to claim 3, characterized in that: The control valve (1) is installed on the side of the oil cylinder (6); an oil inlet (102) is provided at the bottom of the control valve (1); an oil outlet (103) is provided at the top of the control valve (1); the oil inlet (102) is connected to the hydraulic motor (5) through an oil pipe; the oil outlet (103) is connected to the oil tank (7) through an oil pipe; a front opening (104) and a rear opening (105) are provided on one side of the control valve (1) close to the oil cylinder (6); the front opening (104) is connected to the front end of the oil cylinder (6) through an oil pipe; and the rear opening (105) is connected to the rear end of the oil cylinder (6) through an oil pipe.

5. An electric wood splitter according to claim 4, characterized in that: The invention also comprises a frame (8) and a main beam (9), wherein the frame (8) is mounted on the main beam (9), the front end of the main beam (9) is connected to the oil tank (7), the rear end of the main beam (9) is connected to a foot support (10), the front end of the frame (8) is provided with a baffle (11), the oil cylinder (6) is mounted on the rear end of the frame (8), the front end of the oil cylinder (6) is equipped with an axe (12), both ends of the oil tank (7) are connected to wheels (13), the bottom of the oil tank (7) is equipped with a power head base (14), and the power head (2) is mounted on the power head base (14).

6. An electric wood splitter according to claim 3, characterized in that: The control valve (1) is mounted on the upper side of the oil cylinder (6); an oil inlet (102) is provided on one side of the control valve (1); an oil outlet (103) is provided on the other side of the control valve (1); the oil inlet (102) is connected to the hydraulic motor (5) through an oil pipe; the oil outlet (103) is connected to the oil tank (7) through an oil pipe; a front opening (104) and a rear opening (105) are provided at the bottom of the control valve (1); the front opening (104) is connected to the front end of the oil cylinder (6) through an oil pipe; and the rear opening (105) is connected to the rear end of the oil cylinder (6) through an oil pipe.

7. An electric wood splitter according to claim 6, characterized in that: The invention also comprises a fixing frame (15), a power head (2) and a fuel tank (7) are mounted on the fixing frame (15), a fuel cylinder (6) is mounted at the rear end of the fuel tank (7), a baffle (11) is mounted at the front end of the fuel cylinder (6), an axe (12) is mounted at the top of the front end of the fuel tank (7), a foot support (10) is mounted at the bottom of the front end of the fuel tank (7), and wheels (13) are connected to both ends of the fixing frame (15).

8. An electric wood splitter according to claim 1, characterized in that: The power head (2) further comprises a housing (204), wherein the battery pack (201), the motor (202) and the controller (203) are all mounted in the housing (204), wherein a key switch (205) for starting the battery pack (201) is also arranged in the housing (204), and a button switch (206) for starting the motor (202) is also arranged in the housing (204).

9. An electric wood splitter according to claim 8, characterized in that: The housing (204) is also provided with a buckle assembly (207) for fixing the battery pack (201).

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