Tool arm height adjusting unit and chain arm saw

Abstract

The utility model relates to the technical field of chain arm saws, in particular to a tool arm height adjusting unit and a chain arm saw. The guide fixing rod is connected with the mounting base, the outer side of the guide fixing rod penetrates through and is slidably connected with a shell, a sliding cavity is formed in the shell, and a gap is reserved between the guide fixing rod and the cavity wall of the sliding cavity; the protruding separation part is located in the sliding cavity and divides the sliding cavity into two adjusting cavities, and the protruding separation part is connected with the guide fixing rod; the liquid supply assembly is connected with the mounting base, and the liquid supply assembly is connected with one end of the guide fixing rod; the chain arm saw has the advantages that the guiding structure and the driving structure of the tool arm body are centralized, and the structure of the chain arm saw can be more compact while the height of the tool arm is adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of chain arm saws, and in particular to an arm height adjustment unit and a chain arm saw. Background Art

[0002] A chain arm saw is a robotic arm device equipped with a chain saw blade, which is usually used in infrastructure construction such as foundation pit excavation, tunnel excavation, and mine exploitation. The chain arm saw combines the flexibility of the robotic arm and the high-efficiency cutting ability of the chain saw, making the operation more convenient and safe. It is an efficient stone processing machine.

[0003] In order to cut rocks at different heights, it is necessary to adjust the height of the arm in the chain arm saw. In the prior art, the adjustment component for the arm height includes a driving rod and two guiding rods. The driving rod is located between the two guiding rods, and the driving rod is fixedly connected to the box body for installing the arm. When it is necessary to adjust the height of the arm, the oil cylinder drives the driving rod to move, and the driving rod drives the arm to move. The driving rod is located at the middle position between the two guiding rods, and under the guidance of the guiding rods, the movement of the installation box for installing the arm is smoother.

[0004] Regarding the above related technology, by arranging the driving rod and the two guiding rods at a certain distance, although the smooth movement of the arm can be ensured, it will result in a large space occupation and affect the structural compactness of the chain arm saw. Summary of the Invention

[0005] In order to make the structure of the chain arm saw more compact while realizing the adjustment of the arm height, the present application provides an arm height adjustment unit and a chain arm saw.

[0006] An arm height adjustment unit and a chain arm saw provided by the present application adopt the following technical solutions:

[0007] In a first aspect, the present application provides an arm height adjustment unit.

[0008] An arm height adjustment unit includes:

[0009] An installation base;

[0010] At least one guiding and fixing rod, the guiding and fixing rod is connected to the installation base, and a housing is sleeved and slidably connected to the outside of the guiding and fixing rod. A sliding cavity is formed in the housing, and a gap is left between the guiding and fixing rod and the cavity wall of the sliding cavity;

[0011] A protruding partition part, the protruding partition part is located in the sliding cavity and divides the sliding cavity into two adjustment chambers, and the protruding partition part is connected to the guiding and fixing rod;

[0012] A liquid supply assembly for changing the amount of liquid in the adjustment chamber, the liquid supply assembly being connected to the mounting base, and the liquid supply assembly being connected to one end of the guiding fixed rod.

[0013] By adopting the above technical solution, hydraulic oil is input into one of the two adjustment chambers through the liquid supply assembly. As the hydraulic oil continues to be input, the hydraulic oil in the adjustment chamber exerts a force on the housing, causing the housing to slide axially along the guiding fixed rod relative to the protruding partition, resulting in displacement of the housing. Since the tool arm body is mounted on the housing, the height adjustment of the tool arm body can be achieved. The designed tool arm height adjustment unit can fix the guiding fixed rod through the mounting base. Through the cooperation of the guiding fixed rod, the housing, and the protruding partition, two non-communicating adjustment chambers can be formed. The liquid supply assembly can input hydraulic oil into the two adjustment chambers, and then by changing the pressure in the adjustment chambers, the housing can slide axially along the guiding fixed rod, ultimately achieving the height adjustment of the tool arm body. Moreover, this structure can centralize the guiding structure and the driving structure of the tool arm body, making the structure of the chain saw more compact while realizing the height adjustment of the tool arm.

[0014] In a specific feasible embodiment, a guiding track plate is connected to the mounting base. The guiding track plate has at least one sliding track, and the housing extends into the sliding track and is slidably connected to the guiding track plate.

[0015] By adopting the above technical solution, the designed guiding track plate can limit the sliding direction of the housing, thereby reducing the requirements for the cross-sectional shape of the guiding fixed rod and further improving the stability of the sliding direction of the housing.

[0016] In a specific feasible embodiment, at least one mounting ring groove is formed on the protruding partition. A sealing ring is embedded in the mounting ring groove, and the mounting ring groove is coaxially arranged with the protruding partition.

[0017] By adopting the above technical solution, the protruding partition designed with a mounting ring groove and a sealing ring embedded in the mounting ring groove can improve the partitioning performance of the sliding chamber.

[0018] In a specific feasible embodiment, the liquid supply assembly includes:

[0019] A hydraulic pump, the hydraulic pump being connected to the mounting base;

[0020] Two infusion tubes, one end of the infusion tube being connected to the hydraulic pump, and the other end being connected to the guiding fixed rod. Two infusion holes are provided on the guiding fixed rod, and the two infusion holes are respectively communicated with the two adjustment chambers, and the two infusion tubes are respectively communicated with the two infusion holes.

[0021] By adopting the above technical solution, the designed liquid supply component can pump hydraulic oil into or backflow it into two adjustment chambers respectively through the hydraulic pump and two infusion tubes, so as to facilitate the sliding of the housing.

[0022] In a specific feasible embodiment, the housing includes:

[0023] A body part, which is hollow and has openings at both ends;

[0024] Two sliding seal parts, which are respectively arranged near the opposite ends of the body part, and the sliding seal parts are detachably and fixedly connected to the body part, and the body part and the two sliding seal parts form a sliding cavity.

[0025] By adopting the above technical solution, the designed housing including the body part and two sliding seal parts can facilitate the replacement of the sliding seal parts on the basis of realizing the sliding function, and reduce the replacement cost after the sliding seal parts are worn.

[0026] In a second aspect, the present application provides a chain saw.

[0027] A chain saw, comprising:

[0028] A chain saw body;

[0029] An arm height adjustment unit, which is installed on the chain saw body;

[0030] An arm body, which is installed on the housing.

[0031] By adopting the above technical solution, in the designed chain saw, by integrating the guiding structure and the driving structure in the height adjustment unit, the structure of the chain saw can be made more compact while realizing the height adjustment of the arm.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The designed arm height adjustment unit can fix the guiding fixed rod through the mounting base. By the cooperation of the guiding fixed rod, the housing and the protruding partition part, two non-communicating adjustment chambers can be formed. The liquid supply component can input hydraulic oil into the two adjustment chambers, and then by changing the pressure in the adjustment chambers, the housing can slide along the axial direction of the guiding fixed rod, and finally the height adjustment of the arm body is realized. And this structure can centralize the guiding structure and the driving structure of the arm body, and can make the structure of the chain saw more compact while realizing the height adjustment of the arm.

[0034] 2. The designed tool arm height adjustment unit can limit the sliding direction of the housing through the guiding track plate, thereby reducing the requirements for the cross-sectional shape of the guiding fixed rod and further improving the stability of the sliding direction of the housing.

[0035] 3. The designed tool arm height adjustment unit includes a housing with a body part and two sliding sealing parts. On the basis of realizing the sliding function, it is convenient to replace the sliding sealing parts and reduce the replacement cost after the sliding sealing parts are worn. Description of the Drawings

[0036] Figure 1 is a schematic structural diagram of the tool arm height adjustment unit according to an embodiment of the present application.

[0037] Figure 2 is Figure 1 a cross-sectional view of the guiding fixed rod and the housing in

[0038] Figure 3 is in Figure 1 a three-dimensional structural diagram after adding a guiding track plate and a liquid supply assembly on the basis of

[0039] Figure 4 is a schematic overall structure diagram of the chain arm saw in an embodiment of the present application.

[0040] Description of the reference numerals: 1, mounting base; 2, guiding fixed rod; 21, liquid infusion channel; 3, housing; 31, body part; 32, sliding sealing part; 33, sliding cavity; 34, adjustment chamber; 4, protruding partition part; 41, mounting ring groove; 5, liquid supply assembly; 51, hydraulic pump; 52, liquid infusion pipe; 6, guiding track plate; 7, sealing ring; 8, chain arm saw body; 9, tool arm body. Detailed Embodiment

[0041] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings.

[0042] An embodiment of the present application discloses a tool arm height adjustment unit and a chain arm saw.

[0043] In the first aspect, an embodiment of the present application discloses a tool arm height adjustment unit.

[0044] Referring to Figure 1 and Figure 2 , a tool arm height adjustment unit includes a mounting base 1, a guiding fixed rod 2, a housing 3 and a protruding partition part 4; the number of guiding fixed rods 2 is at least one. In the present application, the number of guiding fixed rods 2 can be one or multiple. When there are multiple guiding fixed rods 2, the axial directions of the multiple guiding fixed rods 2 are the same. In this embodiment, the number of guiding fixed rods 2 is two, and both ends of the guiding fixed rod 2 are clamped and fixed to the mounting base 1.

[0045] Refer to Figure 1 and Figure 2 , the number of the shells 3 is the same as that of the guiding fixing rods 2. The shells 3 are sleeved on the outer sides of the guiding fixing rods 2, and the shells 3 are slidably connected with the guiding fixing rods 2. A sliding cavity 33 is formed in each shell 3, and a gap is left between the outer peripheral side of the guiding fixing rod 2 and the cavity wall of the sliding cavity 33; the protruding partition part 4 is located in the sliding cavity 33, and the protruding partition part 4 divides the sliding cavity 33 into two partitioned adjusting chambers 34. The protruding partition part 4 is integrally formed with the guiding fixing rod 2 and coaxially arranged; and two liquid infusion channels 21 are formed in the guiding fixing rod 2, and the two liquid infusion channels 21 are respectively communicated with the two adjusting chambers 34.

[0046] Refer to Figure 2 , in order to ensure the effect of partitioning the sliding cavity 33 while realizing the sliding of the shell 3, at least one mounting ring groove 41 is formed on the protruding partition part 4. A sealing ring 7 is embedded in the mounting ring groove 41, and the mounting ring groove 41 is coaxially arranged with the guiding fixing rod 2. In this application, the number of the guiding ring grooves on the protruding partition part 4 can be one, can be two, or can also be three. In this embodiment, the number of the guiding ring grooves on the protruding partition part 4 is three.

[0047] Refer to Figure 2 , since relative sliding occurs between the shell 3 and the guiding fixing rod 2 after the shell 3 bears weight, the sliding contact part between the shell 3 and the guiding fixing rod 2 wears more seriously, and the overall replacement cost of the shell 3 is relatively high. Therefore, the shell 3 includes a body part 31 and two sliding sealing parts 32. The body part 31 is hollow and open at both ends. The body part 31 is used for connecting with the tool arm body 9. The two sliding sealing parts 32 are respectively arranged near the opposite ends of the body part 31, and the sliding sealing parts 32 and the body part 31 are detachably and fixedly connected by bolts. The body part 31 and the two sliding sealing parts 32 cooperate to form a sealed sliding cavity 33.

[0048] Refer to Figure 2 and Figure 3 , in order to further ensure the stability of the sliding direction of the shell 3, a guiding track plate 6 is bolted to the mounting base 1. The guiding track plate 6 has at least one sliding track, and the track direction of the sliding track is the same as the axial direction of the guiding fixing rod 2. The shell 3 extends into the sliding track and is slidably connected with the guiding track plate 6.

[0049] Refer to Figure 3 , in order to be able to drive the shell 3 to slide relative to the guiding fixing rod 2, the tool arm height adjusting unit further includes a liquid supply assembly 5 for changing the liquid amount in the adjusting chamber 34. The liquid supply assembly 5 is connected with the mounting base 1 and is connected with one end of the guiding fixing rod 2.

[0050] Refer to Figure 2 andFigure 3 The liquid supply assembly 5 includes a hydraulic pump 51 and two infusion tubes 52. The hydraulic pump 51 is bolted to the mounting base 1. One end of the infusion tube 52 is flange-connected to the hydraulic pump 51, and the other end is flange-connected to the guiding fixed rod 2. The inner cavities of the two infusion tubes 52 are respectively communicated with the two adjustment chambers 34 through the infusion channels 21 to control the liquid volume in different adjustment chambers 34, and thereby drive the housing 3 to slide.

[0051] The implementation principle of the knife arm height adjustment unit in the embodiment of the present application is as follows: Hydraulic oil is input into one of the two adjustment chambers 34 through the liquid supply assembly 5. As the hydraulic oil continues to be input, the hydraulic oil in the adjustment chamber 34 exerts a force on the housing 3, causing the housing 3 to slide axially along the guiding fixed rod 2 relative to the protruding partition 4, resulting in a displacement of the housing 3. Since the knife arm body 9 is mounted on the housing 3, the height adjustment of the knife arm body 9 can be achieved.

[0052] In a second aspect, the embodiment of the present application discloses a chain saw.

[0053] Refer to Figure 4 , a chain saw, comprising:

[0054] A chain saw body 8;

[0055] The knife arm height adjustment unit disclosed in the first aspect of the embodiment of the present application, the mounting base 1 is mounted on the chain saw body 8;

[0056] A knife arm body 9, the knife arm body 9 is mounted on the housing 3.

[0057] By integrating the guiding structure and the driving structure in the height adjustment unit, the structure of the chain saw can be made more compact while realizing the height adjustment of the knife arm.

[0058] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A knife arm height adjustment unit, characterized in that: include: Mounting base (1); at least one guide fixing rod (2), the guide fixing rod (2) being connected to the mounting base (1), and a shell (3) being provided on the outside of the guide fixing rod (2) and being slidably connected thereto, a sliding cavity (33) being provided in the shell (3), and a gap being left between the guide fixing rod (2) and the cavity wall of the sliding cavity (33); a protruding partition (4), the protruding partition (4) being located in the sliding cavity (33) and dividing the sliding cavity (33) into two adjustment chambers (34), and the protruding partition (4) being connected to the guide fixing rod (2); A liquid supply assembly (5) for changing the amount of liquid in the regulating chamber (34), wherein the liquid supply assembly (5) is connected to the mounting base (1), and the liquid supply assembly (5) is connected to one end of the guide fixing rod (2).

2. The knife arm height adjustment unit according to claim 1, characterized in that: The mounting base (1) is connected to a guide track plate (6), the guide track plate (6) having at least one sliding track, and the housing (3) extends into the sliding track and is slidably connected to the guide track plate (6).

3. The knife arm height adjustment unit according to claim 1, characterized in that: At least one mounting annular groove (41) is formed on the protruding partition portion (4), a sealing ring (7) is embedded in the mounting annular groove (41), and the mounting annular groove (41) is coaxially arranged with the protruding partition portion (4).

4. The knife arm height adjustment unit according to claim 1, characterized in that: The liquid supply component (5) comprises: A hydraulic pump (51), the hydraulic pump (51) being connected to the mounting base (1); Two infusion tubes (52), one end of the infusion tube (52) is connected to the hydraulic pump (51), and the other end is connected to the guide fixing rod (2), the guide fixing rod (2) is provided with two infusion channels (21), the two infusion channels (21) are respectively connected to the two regulating chambers (34), and the two infusion tubes (52) are respectively connected to the two infusion channels (21).

5. The knife arm height adjustment unit according to claim 1, characterized in that: The housing (3) comprises: A main body (31), wherein the main body (31) is hollow and has openings at both ends; Two sliding sealing parts (32), the two sliding sealing parts (32) are respectively arranged near the opposite ends of the main body (31), and the sliding sealing parts (32) are detachably fixedly connected to the main body (31), and the main body (31) and the two sliding sealing parts (32) form a sliding cavity (33).

6. A chain arm saw, characterized in that: include: Chain arm saw body (8); The blade arm height adjustment unit according to any one of claims 1 to 5, wherein the blade arm height adjustment unit is mounted on the chain arm saw body (8); A knife arm body (9), wherein the knife arm body (9) is mounted on the shell (3).

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