Improved hydraulic wood chopping machine

Abstract

The utility model discloses an improved hydraulic wood chopping machine. The blade and the oil cylinder are arranged on the machine frame and located at the front end and the rear end of the workbench, the hydraulic reversing valve controls a piston rod of the oil cylinder to stretch out and draw back and is provided with a reversing control rod, the swing rod mechanism is arranged on the machine frame and movably connected with the reversing control rod, and the ejector block is arranged on the piston rod and slides relative to the blade along the workbench. A stroke control component is arranged between the swing rod mechanism and the ejector block, the ejector block can push the swing rod mechanism to drive the reversing control rod to conduct reversing action along with retraction of the piston rod, and the ejector block can pull the swing rod mechanism through the stroke control component to drive the reversing control rod to conduct reversing action along with extension of the piston rod. Automatic reversing movement of the piston rod can be achieved, original manual operation is changed into automatic work, labor is saved, and economic benefits are improved.

Description

Technical Field

[0001] This utility model pertains to wood splitting tools, specifically an improved hydraulic wood splitter. Background Technology

[0002] For those who use firewood as fuel for cooking and heating, wood-chopping tools are indispensable. Hydraulic wood splitters are currently a widely used type of wood-chopping tool, offering advantages such as simple structure and labor-saving operation. However, they also have some drawbacks: because this type of wood-chopping tool utilizes the extension of a piston rod in a hydraulic cylinder to push the blades to split the wood, before the next splitting action, the hydraulic cylinder must be manually or foot-operated to retract the piston rod. After the piston rod retracts, the cylinder must be retracted again using the reversing control lever. This operation is quite inconvenient. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing an improved hydraulic wood splitter that is easy to operate.

[0004] The technical solution of this utility model is implemented as follows:

[0005] The improved hydraulic wood splitter provided by this utility model includes a frame with a worktable, blades and a hydraulic cylinder located at the front and rear ends of the worktable on the frame, a hydraulic directional valve that controls the extension and retraction of the piston rod of the hydraulic cylinder and is equipped with a directional control rod, a rocker arm mechanism movably connected to the directional control rod on the frame, and a top block that slides relative to the blades along the worktable on the piston rod and can cooperate with the rocker arm mechanism, and a stroke control component between the rocker arm mechanism and the top block. When the top block retracts with the piston rod, it can push the rocker arm mechanism to drive the directional control rod to perform a directional action, and when the piston rod extends, the stroke control component can pull the rocker arm mechanism to drive the directional control rod to perform a directional action.

[0006] The rocker arm mechanism includes a rocker arm hinged to the frame. One end of the rocker arm is a working end that is movably connected to the reversing control lever, and the other end of the rocker arm is a force-bearing end. The stroke control component includes a control lever fixed to the top block and movably passing through the force-bearing end of the rocker arm. The control lever has spring assemblies at both ends, located before and after the force-bearing end of the rocker arm, which cooperate with the force-bearing end of the rocker arm. The top block pushes and pulls the force-bearing end of the rocker arm through the spring assemblies at both ends of the control lever, thereby driving the reversing control lever to perform a reversing action.

[0007] The rocker arm mechanism includes a rocker arm hinged to the frame. One end of the rocker arm is a working end that is movably connected to the reversing control rod, and the other end of the rocker arm is a force-bearing end. One end of the control rod is hinged to the force-bearing end of the rocker arm, while the other end movably passes through the top block. The control rod has spring assemblies that cooperate with the top block at both ends. The top block cooperates with the spring assemblies at both ends of the control rod to push and pull the force-bearing end of the rocker arm through the control rod, thereby driving the reversing control rod to perform a reversing action.

[0008] The rocker arm mechanism includes a rocker arm hinged to the frame. One end of the rocker arm is a working end that is movably connected to the reversing control lever, and the other end of the rocker arm is a force-bearing end. The stroke control component includes a steel wire rope disposed between the top block and the rocker arm. A top rod is fixed on the top block. One end of the steel wire rope is fixed to the force-bearing end of the rocker arm by a tension spring or a compression spring, and the other end of the steel wire rope is fixed to the top rod. The top block pulls the force-bearing end of the rocker arm 9 by the steel wire rope and pushes the top rod, thereby driving the reversing control lever to perform a reversing action.

[0009] The frame includes legs and brackets located at the front and rear ends of the bottom of the workbench. The brackets include a support plate fixed to the bottom of the workbench and a base plate fixed to the bottom of the support plate. Two rollers are provided at the bottom of the base plate via axles. A motor and an oil pump driven by the motor are provided on the base plate. The oil cylinder is fixed on the workbench via a support.

[0010] Beneficial effects of this utility model

[0011] This invention utilizes a top block and stroke control components in conjunction with a rocker arm mechanism to drive the automatic reversing action of the hydraulic reversing valve's reversing control rod, thereby realizing the reversing motion of the piston rod. The improved hydraulic wood splitter has been transformed from manual operation to automatic operation, saving labor and improving economic efficiency.

[0012] The technical solution of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0014] Figure 2 This is the left view of Embodiment 1.

[0015] Figure 3 This is a top view of Embodiment 1.

[0016] Figure 4 and Figure 5 These are schematic diagrams illustrating different usage states of Example 1.

[0017] Figure 6 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0018] Figure 7 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0019] Figure 8 This is a schematic diagram of the usage state of Example 3.

[0020] Figure 9 These are schematic diagrams of different structures in Example 3. Detailed Implementation

[0021] Example 1

[0022] See Figure 1 —— Figure 3 The improved hydraulic wood splitter provided by this utility model includes a frame with a worktable 26, blades 2 and a hydraulic cylinder 16 located at the front and rear ends of the worktable 26 on the frame, a hydraulic directional valve 24 that controls the extension and retraction of the piston rod 6 of the hydraulic cylinder 16 and is equipped with a directional control rod 11, a rocker arm mechanism movably connected to the directional control rod 11 on the frame, a top block 28 that slides along the worktable 26 relative to the blades 2 on the piston rod 6 and can cooperate with the rocker arm mechanism, and a stroke control component located between the rocker arm mechanism and the top block 28; when the top block 28 retracts with the piston rod 6, it can push the rocker arm mechanism to drive the directional control rod 11 to perform a directional action, and when the piston rod 6 extends, the stroke control component can pull the rocker arm mechanism to drive the directional control rod 11 to perform a directional action.

[0023] A further structural feature of this invention is as follows: the frame includes support legs 1 and a bracket located at the front and rear ends of the bottom of the workbench 26. The bracket includes a support plate 23 fixed to the bottom of the workbench 26 and a base plate 19 fixed to the bottom of the support plate 23. Two rollers 20 are provided on the bottom of the base plate 19 via axle 21. A motor 22 and an oil pump 18 driven by the motor 22 are provided on the base plate 19. The oil cylinder 16 is fixed on the workbench 26 via a support 8. The rocker arm mechanism includes a rocker arm 9 hinged to the frame. One end of the rocker arm 9 is the working end connected to the reversing control lever 11. The swing arm 9 is connected in a movable manner. The other end of the swing arm 9 is the force-bearing end. The middle part of the swing arm 9 is hinged to the support 8 via a pin 29. The working end of the swing arm 9 is sleeved onto the reversing control rod 11 of the hydraulic reversing valve 24 through a waist-shaped hole 30. The force-bearing end of the swing arm 9 is provided with a protrusion 10. The stroke control component includes a control rod 7 fixed to the top block 28 and movably passing through the protrusion 10 on the swing arm 9. Spring assemblies 5, cooperating with the protrusion 10, are respectively provided at both ends of the control rod 7, located before and after the protrusion 10. The top block 28 pushes and pulls the swing arm through the spring assemblies 5 at both ends of the control rod 7. The force-bearing end of 9 drives the reversing control lever 11 to perform a reversing action; the spring assembly 5 includes a positioning nut 501 threadedly connected to the front and rear ends of the control lever 7, a first stop plate 502 and a second stop plate 504 movably sleeved on the control lever 7 and limited by the positioning nut 501, and a spring 503 sleeved on the control lever 7 and located between the first stop plate 502 and the second stop plate 504; the threaded front end of the control lever 7 is fixed to the mounting block 4 on one side of the upper part of the top block 28 by a fastening nut 3 cooperating with the positioning nut 501; the oil pump 18 is connected via... Oil pipe 17 is connected to the oil inlet of hydraulic directional valve 24. Hydraulic directional valve 24 is fixed to one side of support 8 by mounting plate 25. Oil outlet of hydraulic directional valve 24 is connected to oil inlet 12 of retraction rod and oil inlet 15 of cylinder 16 by oil pipe 13 and oil pipe 14 respectively. Oil tank can be installed on top of oil pump or separately. Oil return port of directional valve is connected to oil tank return port, and oil pump inlet is connected to oil tank outlet (not shown in the figure). Guide rails 27 are provided on both sides of worktable 26. The bottom of top block 28 is provided with groove to slide with worktable 26 and guide rails 27.

[0024] When using this utility model, see Figure 4 When the top block 28 retracts along the worktable 26 towards the oil cylinder 16 as the piston rod 6 retracts, firewood a can be placed on the worktable 26. Then, when the top block 28 reaches its stroke limit position, it pushes the force-bearing end of the rocker arm 9 through the spring assembly 5 at one end of the control rod 7 in the stroke control component. The rocker arm 9 then drives the reversing control rod 11 on the hydraulic reversing valve 24 to reverse the piston rod 6, causing the piston rod 6 to extend, which in turn drives the top block 28 to push the firewood a relative to the blade 2. (See...) Figure 5When the top block 28 slides forward to the limit position of the stroke, the firewood a is split by the blade 2, and the spring assembly 5 at the other end of the control rod 7 in the stroke control component pulls the force-bearing end of the swing rod 9, and the swing rod 9 acts on the reversing control rod 11 to realize the reversing movement of the piston rod 6 again.

[0025] Example 2

[0026] See Figure 6 In this embodiment, the rocker arm mechanism includes a rocker arm 9 hinged to the side of the worktable 26. The working end of the rocker arm 9 is movably connected to the reversing control rod 11 via a connecting rod 31. In the stroke control component, one end of the control rod 7 is hinged to the force-bearing end of the rocker arm 9, while the other end movably passes through a protrusion 32 located on the side of the top block 28. The control rod 7 has spring assemblies 5 at both ends in front of and behind the protrusion 32, respectively, which cooperate with the protrusion 32. When the top block 28 retracts along the worktable 26 towards the cylinder 16 and slides to its limit position, The protrusion 32 of the top block 28 cooperates with the spring assembly 5 at one end of the control rod 7 to push the swing rod 9 to swing through the control rod 7. Then, the swing rod 9 drives the reversing control rod 11 to perform a reversing action, thereby realizing the reversing motion of the piston rod 6. When the top block 28 extends along the worktable 26 away from the oil cylinder 16 and slides forward to the limit position, the protrusion 32 of the top block 28 cooperates with the spring assembly 5 at the other end of the control rod 7 to pull the swing rod 9 to swing through the control rod 7. Then, the swing rod 9 drives the reversing control rod 11 to perform a reversing action, thereby realizing the reversing motion of the piston rod 6 again.

[0027] Example 3

[0028] See Figure 7 This embodiment is based on embodiment 1 and adopts a stroke control component with a different structure, including a wire rope 34 disposed between the top block 28 and the swing rod 9. A top rod 33 is fixed on the mounting block 4 of the top block 28. One end of the wire rope 34 is tied to the force-bearing end of the swing rod 9 through a tension spring 35, and the other end of the wire rope 34 is tied to the top rod 33.

[0029] The reversing motion of the piston rod 6 is achieved by the pusher block 28 pulling the rocker arm 9 via the steel wire rope 34 and the pusher rod 33 pushing the force-bearing end of the rocker arm 9, and then the swing of the rocker arm 9 drives the reversing control rod 11 to perform a reversing action. Figure 7 and Figure 8 As shown.

[0030] In this embodiment, one end of the wire rope 34 can also pass through the protrusion 10 on the force-bearing end of the swing rod 9 and then be connected to the protrusion 10 via the compression spring 36, such as... Figure 9 As shown.

Claims

1. An improved hydraulic wood splitter, comprising a frame with a worktable, blades and a hydraulic cylinder mounted on the frame at the front and rear ends of the worktable, and a hydraulic directional valve controlling the extension and retraction of the piston rod of the hydraulic cylinder and equipped with a directional control lever, characterized in that: The frame is provided with a swing arm mechanism movably connected to the reversing control lever and a top block that slides on the piston rod relative to the blade along the worktable and can cooperate with the swing arm mechanism. A stroke control component is provided between the swing arm mechanism and the top block. When the top block retracts with the piston rod, it can push the swing arm mechanism to drive the reversing control lever to perform a reversing action. When the top block extends with the piston rod, it can pull the swing arm mechanism to drive the reversing control lever to perform a reversing action through the stroke control component.

2. The improved hydraulic wood splitter according to claim 1, characterized in that: The rocker arm mechanism includes a rocker arm hinged to the frame. One end of the rocker arm is a working end that is movably connected to the reversing control lever, and the other end of the rocker arm is a force-bearing end. The stroke control component includes a control lever fixed to the top block and movably passing through the force-bearing end of the rocker arm. The control lever has spring assemblies at both ends, located before and after the force-bearing end of the rocker arm, which cooperate with the force-bearing end of the rocker arm. The top block pushes and pulls the force-bearing end of the rocker arm through the spring assemblies at both ends of the control lever, thereby driving the reversing control lever to perform a reversing action.

3. The improved hydraulic wood splitter according to claim 1, characterized in that: The rocker arm mechanism includes a rocker arm hinged to the frame. One end of the rocker arm is a working end that is movably connected to the reversing control rod, and the other end of the rocker arm is a force-bearing end. One end of the control rod is hinged to the force-bearing end of the rocker arm, while the other end movably passes through the top block. The control rod has spring assemblies that cooperate with the top block at both ends. The top block cooperates with the spring assemblies at both ends of the control rod to push and pull the force-bearing end of the rocker arm through the control rod, thereby driving the reversing control rod to perform a reversing action.

4. The improved hydraulic wood splitter according to claim 1, characterized in that: The rocker arm mechanism includes a rocker arm hinged to the frame. One end of the rocker arm is a working end that is movably connected to the reversing control lever, and the other end of the rocker arm is a force-bearing end. The stroke control component includes a steel wire rope disposed between the top block and the rocker arm. A top rod is fixed on the top block. One end of the steel wire rope is fixed to the force-bearing end of the rocker arm by a tension spring or a compression spring, and the other end of the steel wire rope is fixed to the top rod. The top block is pulled by the steel wire rope and pushed by the top rod to drive the force-bearing end of the rocker arm, thereby causing the reversing control lever to perform a reversing action.

5. The improved hydraulic wood splitter according to any one of claims 1 to 4, characterized in that: The frame includes legs and brackets located at the front and rear ends of the bottom of the workbench. The brackets include a support plate fixed to the bottom of the workbench and a base plate fixed to the bottom of the support plate. Two rollers are provided at the bottom of the base plate via axles. A motor and an oil pump driven by the motor are provided on the base plate. The oil cylinder is fixed on the workbench via a support.

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