Hydraulic wood splitter oil tank assembly
By adopting flange structure and short bolt connection methods in the fuel tank assembly of the hydraulic diesel splitter, the problems of insufficient rigidity and poor sealing of the end cap connection are solved, and higher connection strength and sealing are achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- PCT/CN2024/072944
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-14
- Filing Date
- 2024-01-18
- Publication Date
- 2025-06-19
AI Technical Summary
The end cap connection method of existing hydraulic diesel choppers is not rigid enough, oil leakage is prone to occur, and sealing is poor.
The flange structure and short bolt connection method are adopted to fix and seal the end cover through the steel plate flange and sealing ring.
It improves the connection strength and sealing of the hydraulic diesel engine oil tank assembly, extends the service life and reduces maintenance and maintenance costs.
Smart Images

Figure CN2024072944_19062025_PF_FP_ABST
Abstract
Description
A hydraulic wood splitter oil tank assembly Technical Field
[0001] The utility model relates to a hydraulic firewood splitter, in particular to an oil tank assembly of the hydraulic firewood splitter. Background Art
[0002] The wood splitter is an important auxiliary equipment in the processing industry. It uses hydraulic principles to split logs and harder wood to meet the feed size requirements of the crusher, or split the wood into small pieces for making charcoal, burning firewood, crushing, or chipping, greatly reducing the time and speed of manual chopping and saving labor.
[0003] In an existing hydraulic wood splitter, the end covers at both ends of the main body are directly connected by four long bolts (800 mm). During installation, the long bolts pass through the two end covers in sequence and are tightened by nuts to form a clamping force between the two end covers to achieve fixed installation. However, the rigidity of the long bolts is poor, and oil leakage is very likely to occur during use. At the same time, room temperature vulcanized silicone gasket-free sealant is used to seal the end covers and the oil tank body. Frequent stress is applied during use, which makes the rigidity of the long bolts insufficient, thereby damaging the seal and causing oil leakage.
[0004] Utility Model Content
[0005] [1] Technical issues to be solved
[0006] The technical problem to be solved by the utility model is to provide a hydraulic wood splitter oil tank assembly which is provided with flanges at the ends and connected by short bolts and has high connection strength, good sealing and long service life.
[0007] 【2】Technical solutions to solve the problem
[0008] The utility model provides a hydraulic firewood splitter oil tank assembly, which includes:
[0009] The main body 1 serves as a support and mounting carrier. The main body 1 is a cylindrical structure with through holes at both ends thereof forming mounting cavities. The first flange 2 and the second flange 4 are provided at both ends of the main body 1 respectively.
[0010] A front end cover 3 is fixed to the first flange 2 by bolts. A first sealing ring is provided between the front end cover 3 and the first flange 2. The end surface of the front end cover 3 is provided with a cylindrical protrusion 31 facing the mounting cavity and used for mounting the cylinder barrel;
[0011] The rear end cover 5 is fixed to the second flange 4 by bolts. A second sealing ring is provided between the rear end cover 5 and the second flange 4. The rear end cover 5 is provided with an axial hole 51 coaxial with the cylindrical protrusion 31 and for accommodating the piston rod to pass through.
[0012] The front end cover 3 and the rear end cover 5 form the installation cavity into a sealed cavity and serve as an oil storage tank.
[0013] Furthermore, a first end plate is fixed to the front end of the main body 1 by welding, a connecting hole 21 is provided on the first end plate and the first flange 2 is formed, and a first hole body 20 for accommodating the cylindrical protrusion 31 to pass through and an oil hole for oil in and out are provided on the first flange 2, and the oil hole is located at the lower end of the first hole body 20.
[0014] Furthermore, a second end plate is fixed to the rear end of the main body 1 by welding. The second end plate is provided with a connecting hole 41 to form the second flange 4. The second flange 4 is provided with a second hole 40 for accommodating the piston rod to pass through.
[0015] Furthermore, an oil dipstick insertion hole 42 for allowing an oil dipstick to pass through is defined on the second flange 42 , and the oil dipstick insertion hole 42 is located at the lower end of the second hole body 40 .
[0016] Furthermore, a leg mounting seat 12 for mounting a leg is provided below the rear end of the main body 1 .
[0017] Furthermore, a cutter 6 is provided above the rear end of the main body 1 .
[0018] Furthermore, a plane is provided on the upper end of the main body 1 and serves as a placement surface for placing wood.
[0019] Furthermore, the center of the placement surface is concave downward to form a strip-shaped groove, and the length direction of the strip-shaped groove is parallel to the length direction of the main body.
[0020] Furthermore, mounting portions 11 for mounting guide plates are symmetrically provided on both sides of the main body 1 , and mounting screw holes are provided on the mounting portions.
[0021] Furthermore, the cross section of the main body 1 is rectangular. 【3】Beneficial effects
[0022] The oil tank assembly of the hydraulic wood splitter of the utility model is provided with flange structures at both ends of the main body, and the installation of the end covers can be achieved by short bolts, which is easy to install, saves labor, is convenient for maintenance and servicing, and has high strength, good rigidity and good reliability in use; the steel plate flange structure is adopted, which has high strength, good rigidity and strong load capacity, can avoid deformation that affects the seal, thereby improving the overall sealing of the oil tank, and is stable and reliable in use; the sealing ring is adopted for sealing, which has good sealing effect, and is easy to install and unload, saves labor, has low maintenance and servicing costs and a long service life; the oil tank assembly of the hydraulic wood splitter of the utility model has high structural strength, good sealing, reliable and stable use and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a schematic structural diagram of the oil tank assembly of the hydraulic firewood splitter of the present invention;
[0024] FIG2 is a schematic diagram of the exploded structure of the oil tank assembly of the hydraulic wood splitter of the present invention;
[0025] FIG3 is a schematic structural diagram of the first flange of the oil tank assembly of the hydraulic wood splitter of the present invention;
[0026] Figure 4 is a schematic structural diagram of the second flange of the oil tank assembly of the hydraulic wood splitter of the present invention;
[0027] Figure 5 is a schematic structural diagram of the front end cover of the hydraulic firewood splitter oil tank assembly of the present invention;
[0028] FIG6 is a schematic structural diagram of the rear end cover of the oil tank assembly of the hydraulic wood splitter of the present invention. DETAILED DESCRIPTION
[0029] The following describes the embodiments of the present utility model in detail with reference to the accompanying drawings.
[0030] 1 to 6 , the present invention provides a hydraulic firewood splitter oil tank assembly, comprising a main body 1 , a front end cover 3 and a rear end cover 5 .
[0031] The main body 1 is used as a support and mounting carrier for installing other components. The main body 1 is a cylindrical structure and is arranged horizontally. In this embodiment, the cross section of the main body 1 is rectangular. Through holes are passed through at both ends of the main body 1 to form a mounting cavity. A first flange 2 and a second flange 4 are provided at both ends of the main body 1 respectively; the front end cover 3 is fixed to the first flange 2 by bolts, and a first sealing ring is provided between the front end cover 3 and the first flange 2. At the same time, a cylindrical protrusion 31 is provided on the end face of the front end cover 3. The cylindrical protrusion 31 is a cylindrical structure, which faces the mounting cavity and is used to install the cylinder. An oil port is provided at the end of the cylindrical protrusion for The oil is fed into the cylinder to push the piston to slide; the rear end cover 5 is fixed to the second flange 4 by bolts, and a second sealing ring is provided between the rear end cover 5 and the second flange 4. At the same time, an axial hole 51 is provided on the rear end cover 5, and the axial hole 51 is coaxial with the cylindrical protrusion 31, which is used to allow the piston rod to pass through; the above-mentioned front end cover 3 and the rear end cover 5 are sealed and fixed to the two ends of the main body 1, so that the mounting cavity forms a sealed cavity, which serves as an oil tank for storing oil. At the same time, an oil cylinder is provided in the oil tank, which is located at the upper end of the oil tank and is parallel to the main body 1. Its output shaft extends to the outside of the main body after passing through the axial hole and serves as the power output end for chopping wood.
[0032] Referring to FIG3 , in this embodiment, a first end plate is fixed to the front end of the main body 1. The first end plate is a steel plate with a thickness of 3 mm or more and high strength. The shape of the first end plate is the same as that of the main body, both being rectangular, and the edge of the outline is slightly larger than the cross-sectional outline of the main body 1. The first end plate is fixed to the front end of the main body 1 by welding. A connecting hole 21 is opened on the first end plate to form a first flange 2. There are multiple connecting holes 21 for connecting to the front end cover. At the same time, a first hole body 20 and an oil hole 221 are opened on the first flange 2 (first end plate). The first hole body is set at the upper end to accommodate the cylindrical protrusion 31 passing through, that is, for installing the cylinder body (oil cylinder). The oil hole 221 is arranged at the lower end position. There are two oil holes 221, which are used for oil inlet and oil outlet respectively; the end face of the first end plate is flat, which can accommodate the front end cover 3 to be installed in a close fit. At the same time, the contour shape and length and width of the first end plate are the same as those of the front end cover, with a compact structure and beautiful appearance. There is no convex edge after assembly, and it is safe and reliable to use; the front end cover is provided with another connecting hole 30 corresponding to the connecting hole on the first flange, and is fixed to the first end plate by a bolt assembly (bolts, gaskets, nuts); an annular groove is opened on the end face of the front end cover, and the first sealing ring is arranged in the annular groove, and fits with the end face of the first flange 2 to achieve sealing.
[0033] Referring to Figure 4, a second end plate is fixed to the rear end of the main body 1. The second end plate is made of steel and has a thickness of 3 mm or more and high strength. The shape of the second end plate is the same as that of the main body, both of which are rectangular, and the outline edge is slightly larger than the cross-sectional outline of the main body 1. It is fixed to the rear end of the main body 1 by welding. A connecting hole 41 is provided on the second end plate to form a second flange 4. There are multiple connecting holes 41 for connecting to the rear end cover; at the same time, a second hole body 40 and an oil dipstick insertion hole 42 are provided on the second flange 4 (second end plate), and the second hole body 40 is provided at the upper end. The second hole body 40 is used to allow the piston rod to pass through, and the oil dipstick insertion hole 42 is provided near the lower end. The oil dipstick insertion hole 42 is used to allow the oil dipstick The socket 42 passes through to realize the oil condition monitoring of the internal oil tank; the end face of the second end plate is flat, which can accommodate the rear end cover 5 to be installed in a close fit. At the same time, the contour shape and length and width of the second end plate are the same as those of the rear end cover, with a compact structure and beautiful appearance. After assembly, there is no convex edge, and it is safe and reliable to use; the rear end cover is provided with another connecting hole 50 corresponding to the connecting hole on the second flange, and is fixed to the second end plate by a bolt assembly (bolts, gaskets, nuts); an annular groove is provided on the end face of the rear end cover, and a second sealing ring is arranged in the annular groove, and is in fit with the end face of the second flange to achieve sealing, and an oil dipstick mounting hole 52 coaxial with the oil dipstick socket 42 is provided on the rear end cover for mounting the oil dipstick.
[0034] The above-mentioned main body is arranged horizontally to form a tubular structure with a cavity inside. The main body serves as a support and installation carrier, and the cylinder is installed in the upper position inside the main body to achieve hidden installation with beautiful and compact appearance. At the same time, it serves as an oil tank for storing hydraulic oil, which can have a certain cooling effect on the cylinder.
[0035] A leg mounting seat 12 is provided at the lower rear end of the main body 1, and the leg mounting seat 12 is used to mount the legs; a tool 6 is provided above the rear end of the main body 1, and the tool 6 is V-shaped, with its blade facing the front end of the main body, and is used for chopping wood; mounting portions 11 are symmetrically provided on both sides of the main body 1, and the mounting portions 11 are used to mount guide plates, and mounting screw holes are provided on the mounting portions; at the same time, a plane is provided at the upper end of the main body 1, which serves as a placement surface for placing wood. In order to improve the accuracy of wood placement, even if the wood and the tool tend to be coaxial, in this embodiment, the center of the placement surface is concave downward and forms a strip groove. The length direction of the strip groove is parallel to the length direction of the main body, which can prevent the wood from rolling during the pushing process and ensure the reliability and stability of chopping. The strip groove is a V-shaped groove or a U-shaped groove, which is used for centering the wood.
[0036] The oil tank assembly of the hydraulic wood splitter of the utility model is provided with flange structures at both ends of the main body, and the installation of the end covers can be achieved by short bolts, which is easy to install, saves labor, is convenient for maintenance and servicing, and has high strength, good rigidity and good reliability in use; the steel plate flange structure is adopted, which has high strength, good rigidity and strong load capacity, can avoid deformation that affects the seal, thereby improving the overall sealing of the oil tank, and is stable and reliable in use; the sealing ring is adopted for sealing, which has good sealing effect, and is easy to install and unload, saves labor, has low maintenance and servicing costs and a long service life; the oil tank assembly of the hydraulic wood splitter of the utility model has high structural strength, good sealing, reliable and stable use and a long service life.
[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A hydraulic wood splitter oil tank assembly, characterized in that: include: The main body is a support and mounting carrier, the main body is a cylindrical structure, through holes are passed through at both ends of the main body to form a mounting cavity, and a first flange and a second flange are respectively provided at both ends of the main body; A front end cover is fixed to the first flange by bolts, a first sealing ring is provided between the front end cover and the first flange, and an end surface of the front end cover is provided with a cylindrical protrusion facing the mounting cavity and used for mounting the cylinder barrel; A rear end cover is fixed to the second flange by bolts, a second sealing ring is arranged between the rear end cover and the second flange, and an axial hole is opened on the rear end cover, which is coaxial with the cylindrical protrusion and is used for the piston rod to pass through; The front end cover and the rear end cover enable the installation cavity to form a sealed cavity and serve as an oil storage tank.
2. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: A first end plate is fixed to the front end of the main body by welding, a connecting hole is formed on the first end plate to form the first flange, a first hole body for accommodating the cylindrical protrusion to pass through and an oil hole for oil in and out are formed on the first flange, and the oil hole is located at the lower end of the first hole body.
3. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: A second end plate is fixed to the rear end of the main body by welding, a connecting hole is formed on the second end plate to form the second flange, and a second hole body for accommodating the piston rod to pass through is formed on the second flange.
4. The hydraulic wood splitter oil tank assembly according to claim 3, characterized in that: The second flange is provided with an oil dipstick insertion hole for allowing the oil dipstick to pass through, and the oil dipstick insertion hole is located at the lower end of the second hole body.
5. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: A leg mounting seat for mounting the legs is provided below the rear end of the main body.
6. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: A cutter is arranged above the rear end of the main body.
7. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: The upper end of the main body is provided with a plane which serves as a placement surface for placing wood.
8. The hydraulic wood splitter oil tank assembly according to claim 7, characterized in that: The center of the placement surface is concave downward to form a strip-shaped groove, and the length direction of the strip-shaped groove is parallel to the length direction of the main body.
9. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: Mounting parts for mounting the guide plates are symmetrically arranged on both sides of the main body, and mounting screw holes are provided on the mounting parts.
10. The hydraulic wood splitter oil tank assembly according to claim 1, characterized in that: The cross section of the main body is rectangular.
Citation Information
Patent Citations
Log cutter
CN201808117U
Sealing structure of hydraulic oil tank of log splitter
CN218377663U
Fuel tank end cover sealing mechanism for firewood chopping machine
CN2869454Y