A wood splitter capable of preventing piston rod from deforming

Abstract

The utility model relates to the field of wood splitters, and in particular to a wood splitter capable of avoiding deformation of a piston rod, comprising a base, a hydraulic cylinder, a push head and a wedge block are arranged on the base, the output end of the hydraulic cylinder is fixedly connected to the push head, the push head can approach or move away from the wedge block, and slide grooves are also arranged on the two side surfaces of the base, a guide frame is fixedly arranged on the push head, the guide frame is "U" shaped, and a positioning pin is fixedly arranged on each side wall of the guide frame, and the positioning pin is slidably connected to the slide groove. The utility model limits the upward movement of the push by arranging the slide groove laterally and slidably connecting the guide frame with the slide groove, thereby avoiding wood chips from entering the slide groove, and does not need to use a "T" groove, so that the inner wall can be completely painted, and the anti-rust effect is good. The utility model reduces the friction between the push head and the base by arranging a limiting roller, thereby avoiding damage to the base and the positioning groove on the base.

Description

Technical Field

[0001] The utility model relates to the field of firewood splitters, in particular to a firewood splitter capable of preventing a piston rod from being deformed. Background Art

[0002] The common structure of existing wood splitters is to install a guide block at the top of the jack, which usually only constrains the three degrees of freedom of downward, left and right. In addition to the situation that the customer does not split the wood within a certain diameter range according to the operating manual, it is also necessary to consider the residue of hard wood tumors or concrete-filled tree holes, which causes the cutting head to be locally stressed, and the overall jack piston moves upward to form deformation, causing product failure.

[0003] Another way is to design a T-shaped sliding groove for the guide block to cooperate with the main bracket to play a limiting role, so that it cannot move up, down, left, or right. However, the problem is that the structure is complicated and it is easy to accumulate sawdust and cause the sliding groove to be blocked. At the same time, the manufacturing cost of the product is higher. Because the gap inside the sliding groove is too narrow, the paint cannot cover the entire metal surface, and it is easy to rust after long-term use.

[0004] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a wood splitter that can avoid deformation of the piston rod. The utility model is achieved through the following technical solutions:

[0006] A wood splitter capable of avoiding deformation of a piston rod comprises a base, on which a hydraulic cylinder, a push head and a wedge block are arranged, the output end of the hydraulic cylinder is fixedly connected to the push head, the push head can approach or move away from the wedge block, slide grooves are also arranged on both side surfaces of the base, a guide frame is fixedly arranged on the push head, the guide frame is "U"-shaped, and a positioning pin is fixedly arranged on each side wall of the guide frame, and the positioning pin is slidably connected to the slide groove.

[0007] In the above technical solution: the base is used to set up the remaining components; the hydraulic cylinder is used to provide power so that the push head can move; the push head is used to push the firewood to contact the wedge block and continue to apply force; the wedge block is used to reduce the contact area and increase the pressure, so that the firewood is split; the slide groove is used to cooperate with the positioning pin, so that the guide cannot move upward; the guide frame is used to limit the moving direction of the push head.

[0008] The utility model is further configured as follows: a limiting roller is rotatably provided on the guide frame, the limiting roller penetrates through the side walls of both sides of the guide frame, and the limiting roller is located above the positioning pin, and the limiting roller contacts the upper surface of the base.

[0009] In the above technical solution: the limiting roller is used to prevent the extrusion pressure between the push head and the base from being too large, thereby generating excessive friction and damaging the surface of the base.

[0010] The utility model is further configured as follows: an assembly block is fixedly provided on the guide frame, an assembly hole is provided on the assembly block, the output end of the hydraulic cylinder passes through the assembly hole, and the diameter of the output end of the hydraulic cylinder is consistent with the diameter of the assembly hole.

[0011] In the above technical solution: the assembly block is used to set the assembly hole; the assembly hole is used to set the output shaft of the hydraulic cylinder, so that the movement trend of the hydraulic cylinder output shaft is consistent with that of the guide frame; the diameter of the assembly hole is consistent with the diameter of the hydraulic cylinder output shaft, which is used to reduce the shaking of the hydraulic cylinder output shaft.

[0012] The utility model is further configured as follows: a positioning groove is further provided on the upper surface of the base, and the cross-sectional shape of the positioning groove is "V"-shaped.

[0013] In the above technical solution: the positioning groove is provided to reduce the horizontal deviation when the push head moves.

[0014] The utility model is further configured as follows: a positioning protrusion is provided on the bottom surface of the push head, and the positioning protrusion corresponds to the shape of the positioning groove.

[0015] In the above technical solution: the positioning protrusion is used to cooperate with the positioning groove.

[0016] The utility model is further configured as follows: the diameter of the positioning pin is consistent with the width of the sliding groove.

[0017] In the above technical solution: the diameter of the positioning pin is consistent with the width of the slide groove, which is used to reduce the up and down shaking of the positioning frame.

[0018] The utility model discloses a wood splitter capable of avoiding deformation of a piston rod. Compared with the prior art:

[0019] 1. The utility model sets a slide groove in the side and slides with the slide groove through a guide frame, thereby limiting the upward movement of the push, preventing wood chips from entering the slide groove, and does not need to use a "T" groove, so that the inner wall can be completely painted, and the anti-rust effect is good;

[0020] 2. The utility model provides a limiting roller, so that when the push head has a tendency to move downward, the sliding friction can be converted into rotational friction, thereby reducing friction and avoiding damage to the base and the positioning groove on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the utility model;

[0022] Figure 2 It is a top view of the utility model;

[0023] Figure 3 It is a cross-sectional view of the utility model;

[0024] Figure 4 It is a schematic diagram of the positioning frame of the utility model.

[0025] The corresponding component names represented by the numbers and letters in the figure are: 10-base; 101-slide; 102-positioning groove; 20-hydraulic cylinder; 30-push head; 301-positioning protrusion; 40-wedge block; 50-guide frame; 501-positioning pin; 502-limiting roller; 503-assembly block; 503a-assembly hole. DETAILED DESCRIPTION

[0026] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0027] like Figure 1-4 As shown, the utility model proposes a firewood splitter capable of avoiding deformation of the piston rod, comprising a base 10, on which a hydraulic cylinder 20, a push head 30 and a wedge block 40 are arranged, the output end of the hydraulic cylinder 20 is fixedly connected to the push head 30, the push head 30 can approach or move away from the wedge block 40, and a slide groove 101 is also arranged on both sides of the base 10, and a guide frame 50 is fixedly arranged on the push head 30, the guide frame 50 is "U" shaped, and a positioning pin 501 is fixedly arranged on each of the two side walls of the guide frame 50, and the positioning pin 501 is slidably connected with the slide groove 101. Among them, a supporting foot is also arranged on the bottom surface of the base 10; the output direction of the hydraulic cylinder 20 is consistent with the length direction of the base 10; the cross-sectional shape of the slide groove 101 is "rectangular"; and the sharp side of the wedge block 40 points to the push head 30.

[0028] like Figure 1-4 As shown, the utility model proposes a wood splitter that can avoid deformation of the piston rod. A limiting roller 502 is rotatably provided on the guide frame 50. The limiting roller 502 passes through the side walls of the guide frame 50, and the limiting roller 502 is located above the positioning pin 501. The limiting roller 502 contacts the upper surface of the base 10.

[0029] like Figure 1-4As shown, the utility model proposes a firewood splitter capable of avoiding deformation of the piston rod, wherein the guide frame 50 is further fixedly provided with an assembly block 503, the assembly block 503 is provided with an assembly hole 503a, the output end of the hydraulic cylinder 20 passes through the assembly hole 503a, and the diameter of the output end of the hydraulic cylinder 20 is consistent with the diameter of the assembly hole 503a. Preferably, the assembly block 503 and the guide frame 50 are integrally formed.

[0030] like Figure 1-4 As shown, the utility model proposes a firewood splitter capable of preventing deformation of the piston rod, wherein a positioning groove 102 is further provided on the upper surface of the base 10, and the cross-sectional shape of the positioning groove 102 is "V" shaped. The angle between the two side walls of the positioning groove 102 is an obtuse angle.

[0031] like Figure 1-4 As shown, the utility model provides a wood splitter capable of preventing deformation of the piston rod. The bottom surface of the pusher head 30 is provided with a positioning protrusion 301 , and the positioning protrusion 301 corresponds to the shape of the positioning groove 102 .

[0032] like Figure 1-4 As shown, the utility model provides a wood splitter capable of preventing the piston rod from being deformed, and the diameter of the positioning pin 501 is consistent with the width of the slide groove 101 .

[0033] The working principle of the utility model is:

[0034] a) Place the firewood into the positioning groove;

[0035] b) The output end of the hydraulic cylinder extends, and the pusher moves accordingly and contacts one end of the firewood;

[0036] c) The pusher pushes the firewood to move, and the other end of the firewood contacts the wedge block;

[0037] d) The sharp edge of the wedge splits the wood under the action of pressure;

[0038] e) When the pusher head tends to deflect upwards due to the presence of hard wood knots in the firewood or the remnants of concrete filling tree holes;

[0039] f) The output shaft of the hydraulic cylinder tends to deviate upward;

[0040] g) The guide frame then tends to deviate upward, and the positioning pin exerts an upward squeezing force on the slideway;

[0041] h) The downward support force of the slideway on the positioning pin counteracts the deflection tendency of the push head, preventing the push head from deviating upward and causing damage to the hydraulic shaft output shaft.

[0042] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A wood splitter capable of preventing deformation of a piston rod, characterized in that: The invention comprises a base (10), on which a hydraulic cylinder (20), a push head (30) and a wedge block (40) are arranged, the output end of the hydraulic cylinder (20) is fixedly connected to the push head (30), and the push head (30) can approach or move away from the wedge block (40), and slide grooves (101) are also arranged on both side surfaces of the base (10), and a guide frame (50) is fixedly arranged on the push head (30), and the guide frame (50) is in a "U" shape, and a positioning pin (501) is fixedly arranged on each side wall of the guide frame (50), and the positioning pin (501) is slidably connected to the slide groove (101).

2. A wood splitter capable of avoiding deformation of the piston rod according to claim 1, characterized in that: A limiting roller (502) is also rotatably provided on the guide frame (50), the limiting roller (502) passes through the side walls of the guide frame (50), and the limiting roller (502) is located above the positioning pin (501), and the limiting roller (502) is in contact with the upper surface of the base (10).

3. A wood splitter capable of avoiding deformation of the piston rod according to claim 1 or 2, characterized in that: The guide frame (50) is also fixedly provided with an assembly block (503), the assembly block (503) is provided with an assembly hole (503a), the output end of the hydraulic cylinder (20) passes through the assembly hole (503a), and the diameter of the output end of the hydraulic cylinder (20) is consistent with the diameter of the assembly hole (503a).

4. A wood splitter capable of avoiding deformation of the piston rod according to claim 3, characterized in that: A positioning groove (102) is also provided on the upper surface of the base (10), and the cross-sectional shape of the positioning groove (102) is "V"-shaped.

5. A wood splitter capable of preventing piston rod deformation according to claim 4, characterized in that: The bottom surface of the pusher head (30) is provided with a positioning protrusion (301), and the positioning protrusion (301) corresponds to the shape of the positioning groove (102).

6. A wood splitter capable of preventing piston rod deformation according to claim 5, characterized in that: The diameter of the positioning pin (501) is consistent with the width of the sliding groove (101).

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