Hydraulic mounting and dismounting tool and mounting and dismounting method

Abstract

The hydraulic mounting and dismounting tool comprises a seat plate, at least one first fastener and at least one second fastener, an embedding groove is formed in the side, facing a rotary drum, of the seat plate, a piston is movably arranged in the embedding groove, a containing groove is formed in the peripheral side of a main shaft, the main shaft defines a first flow channel, the seat plate defines a second flow channel, and the first flow channel is communicated with the second flow channel. The first flow channel is communicated with the containing groove, a cavity is formed between the piston and the caulking groove, the cavity is communicated with the second flow channel, the piston is in sealing contact with the groove wall of the caulking groove, and the base plate is detachably connected with the main shaft through the first fastener. And the seat plate is detachably connected with the rotary drum through the second fastener. The tool solves the problem that time and labor are consumed when the rotary drum and the main shaft are disassembled. The invention also aims at disclosing a mounting and dismounting method which is used for mounting and dismounting by using the tool. The method is simple in step and convenient to operate, improves the production efficiency, and saves time and labor.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuges, and in particular to a hydraulic installation and disassembly tool and an installation and disassembly method. Background Art

[0002] Centrifuge is a high-speed separation equipment widely used in chemical and pharmaceutical industries. The spindle and drum are usually installed with tapered holes. The drum is often disassembled and installed during maintenance. The fit between the spindle and the drum is usually tight. Bolts are usually used for installation, but the spindle and drum tapered holes are not easy to meet the installation requirements. Disassembly usually uses jacking screws or conventional jacks, but it takes a long time and is labor-intensive. Therefore, a new technical solution is urgently needed to solve at least one of the above technical problems. Summary of the invention

[0003] One object of the present invention is to provide a hydraulic installation and disassembly tool to solve the problem of time-consuming and labor-intensive disassembly of the drum and the main shaft. Another object of the present invention is to provide an installation and disassembly method with simple steps, convenient operation, improved production efficiency, and time and labor saving.

[0004] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the present invention is: a hydraulic installation and removal tool, characterized in that it includes a seat plate, at least one first fastener and at least one second fastener; The seat plate is provided with an embedding groove on the side facing the drum, a piston is movably provided in the embedding groove, an accommodating groove is provided on the outer peripheral side of the main shaft, the main shaft defines a first flow channel, the seat plate defines a second flow channel, the first flow channel is communicated with the accommodating groove, a cavity is formed between the piston and the embedding groove, the cavity is communicated with the second flow channel, the piston is in sealing contact with the groove wall of the embedding groove, the seat plate is detachably connected to the main shaft via the first fastener, and the seat plate is detachably connected to the drum via the second fastener.

[0005] As a preferred technical solution, the seat plate is provided with an avoidance hole penetrating the seat plate in a direction parallel to the axial direction.

[0006] As a preferred technical solution, the first flow channel includes a first oil inlet, a first oil inlet section and a first connecting section which are connected in sequence, the first connecting section is connected to the accommodating groove, the avoidance hole, the first oil inlet and the first oil inlet section are coaxially arranged and parallel to the axial direction, and the first connecting section is parallel to the radial direction.

[0007] As a preferred technical solution, the second flow channel includes a second oil inlet, a second oil inlet section and a second connecting section which are connected in sequence, the second oil inlet and the first oil inlet section are coaxially arranged and parallel to the radial direction, the second connecting section is parallel to the axial direction, and the second connecting section is connected to the cavity.

[0008] As a preferred technical solution, a sealing groove is circumferentially arranged on the outer peripheral side of the piston, and a sealing member is embedded in the sealing groove.

[0009] As a preferred technical solution, the tool further includes a first hydraulic gun and a second hydraulic gun, wherein the first hydraulic gun is connected to the first flow channel, and the second hydraulic gun is connected to the second flow channel.

[0010] As a preferred technical solution, the inner diameter of the first oil inlet is larger than the inner diameter of the first oil inlet section, and the second oil inlet is larger than the inner diameter of the second oil inlet section.

[0011] As a preferred technical solution, the first fastening member is a first fastening bolt, and the second fastening member is a second fastening bolt.

[0012] As a preferred technical solution, the sealing member is an O-ring.

[0013] The present invention also provides an installation and disassembly method, characterized in that the installation and disassembly are performed using the tool, comprising the following steps: Use the first fastener to install the seat plate to one end of the spindle, screw the second fastener to push the seat plate, and the seat plate will initially press the drum against the conical surface of the spindle; The second fastener is tightened and then loosened, and hydraulic oil is introduced into the first flow channel and the second flow channel respectively, and the piston presses against the drum and pushes the drum to move, thereby installing the drum on the main shaft; When the drum needs to be disassembled from the main shaft, the second fastener is removed, hydraulic oil is introduced into the first flow channel, and then the drum is disassembled.

[0014] The beneficial effects of the present invention are: 1) Compressed gas or hydraulic oil is introduced into the first flow channel to expand the drum, so that the drum can be initially put on the main shaft, and then compressed gas or hydraulic oil is introduced into the second flow channel to push the piston to move, and the piston pushes the drum toward the large diameter end of the main shaft, so that the drum is installed on the main shaft. When disassembly is required, compressed gas or hydraulic oil is not introduced into the second flow channel, and compressed gas or hydraulic oil is introduced into the first flow channel to expand the drum, and then the drum can be disassembled, which solves the problem of time-consuming and labor-intensive disassembly of the drum and the main shaft; 2) The avoidance hole facilitates the passage of a pipe or a pressure output device such as a hydraulic gun to connect to the first flow channel; 3) The first oil inlet and the second oil inlet can facilitate the installation of the joint, and the first oil inlet section, the second oil inlet section, the first connecting section and the second connecting section play a guiding role; 4) The sealing groove and the sealing element cooperate to improve the sealing performance; 5) The installation and disassembly steps are simple, easy to operate, improves production efficiency, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of a tool provided by an embodiment of the present invention; Figure 2 yes Figure 1 The structural diagram of the local A in the middle; Figure 3 yes Figure 1 Left view of exist Figure 1-Figure 3 1. seat plate; 101. embedding groove; 1011. cavity; 102. avoidance hole; 2. first fastener; 3. second fastener; 4. piston; 401. sealing groove; 5. drum; 6. main shaft; 601. accommodating groove; 7. first flow channel; 701. first oil inlet; 702. first oil inlet section; 703. first connecting section; 8. second flow channel; 801. second oil inlet; 802. second oil inlet section; 803. second connecting section; 9. sealing member. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings.

[0017] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "head", "tail", "top", "bottom", "left", "right", "front", "back", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0018] See also Figure 1-Figure 3 An embodiment of the present invention provides a hydraulic installation and disassembly tool, comprising a seat plate 1, at least one first fastener 2 and at least one second fastener 3, wherein the seat plate 1 is provided with an embedding groove 101 on the side facing the drum 5, a piston 4 is movably provided in the embedding groove 101, an accommodating groove 601 is provided on the outer peripheral side of the main shaft 6, the main shaft 6 defines a first flow channel 7, the seat plate 1 defines a second flow channel 8, the first flow channel 7 is communicated with the accommodating groove 601, a cavity 1011 is formed between the piston 4 and the embedding groove 101, the cavity 1011 is communicated with the second flow channel 8, the piston 4 is in sealing contact with the groove wall of the embedding groove 101, the seat plate 1 is detachably connected to the main shaft 6 through the first fastener 2, and the seat plate 1 is detachably connected to the drum 5 through the second fastener 3.

[0019] Compressed gas or hydraulic oil is introduced into the first flow channel 7 to expand the drum 5 so that the drum 5 can be initially put on the main shaft 6. Then, compressed gas or hydraulic oil is introduced into the second flow channel 8 to push the piston 4 to move. The piston 4 pushes the drum 5 toward the large diameter end of the main shaft 6, thereby installing the drum 5 on the main shaft 6. When disassembly is required, compressed gas or hydraulic oil is not introduced into the second flow channel 8, and compressed gas or hydraulic oil is introduced into the first flow channel 7. After the drum 5 is expanded, the drum 5 can be disassembled, thereby solving the problem of time-consuming and labor-intensive disassembly of the drum 5 and the main shaft 6.

[0020] like Figure 1-Figure 3 As shown, the seat plate 1 is provided with an avoidance hole 102 penetrating the seat plate 1 in a direction parallel to the axial direction. The avoidance hole 102 facilitates a pressure output device such as a pipeline or a hydraulic gun to pass through and connect to the first flow channel 7 .

[0021] like Figure 1-Figure 3 As shown, the first flow channel 7 includes a first oil inlet 701, a first oil inlet section 702 and a first connecting section 703 which are connected in sequence, the first connecting section 703 is connected to the receiving groove 601, the avoidance hole 102, the first oil inlet 701 and the first oil inlet section 702 are coaxially arranged and parallel to the axial direction, the first connecting section 703 is parallel to the radial direction, the inner diameter of the first oil inlet 701 is larger than the inner diameter of the first oil inlet section 702, the first oil inlet 701 is provided with threads, the first oil inlet 701 can facilitate the installation of the joint, the first oil inlet section 702 and the first connecting section 703 play a guiding role to guide the hydraulic oil or compressed gas to the receiving groove 601.

[0022] like Figure 1-Figure 3 As shown, the second flow channel 8 includes a second oil inlet 801, a second oil inlet section 802 and a second connecting section 803 which are connected in sequence, the second oil inlet 801 and the first oil inlet section 702 are coaxially arranged and parallel to the radial direction, the second connecting section 803 is parallel to the axial direction, the second connecting section 803 is connected to the cavity 1011, the second oil inlet 801 is larger than the inner diameter of the second oil inlet section 802, the second oil inlet 801 is provided with threads, the second oil inlet 801 can facilitate the installation of the joint, the second oil inlet section 802 and the second connecting section 803 play a guiding role to guide the hydraulic oil or compressed gas to the cavity 1011.

[0023] like Figure 1-Figure 3 As shown, a sealing groove 401 is circumferentially provided on the outer peripheral side of the piston 4, and a sealing member 9 is embedded in the sealing groove 401. Specifically, the sealing member 9 is an O-ring, and the sealing groove 401 cooperates with the sealing member 9 to improve the sealing performance.

[0024] like Figure 1-Figure 3As shown, the tool also includes a first hydraulic gun (not marked) and a second hydraulic gun (not marked), the first hydraulic gun is connected to the first flow channel 7, and the second hydraulic gun is connected to the second flow channel 8. The first hydraulic gun and the second hydraulic gun are easy to operate and can inject hydraulic oil into the first flow channel 7 and the second flow channel 8.

[0025] like Figure 1-Figure 3 As shown, the first fastener 2 is a first fastening bolt, and the second fastener 3 is a second fastening bolt, which is convenient for installation and disassembly and easy for selection.

[0026] See also Figure 1-Figure 3 The present invention also provides an installation and disassembly method, which uses the tool to install and disassemble, comprising the following steps: Use the first fastener 2 to install the seat plate 1 to one end of the main shaft 6, and screw the second fastener 3 to push the seat plate 1, so that the seat plate 1 initially presses the drum 5 onto the conical surface of the main shaft 6; The second fastener 3 is tightened and then loosened, that is, the second fastener 3 is reversed to expose 1 / 4-3 / 4 of the length of the second fastener 3, and hydraulic oil is respectively introduced into the first flow channel 7 and the second flow channel 8, and the piston 4 supports the drum 5 and pushes the drum 5 to move, so that the drum 5 is installed on the main shaft 6. Specifically, the first hydraulic gun is connected to the first oil inlet 701, and the second hydraulic gun is connected to the second oil inlet 801. The first hydraulic gun is turned on to introduce hydraulic oil into the first flow channel 7, and the hydraulic oil in the first flow channel 7 enters the receiving groove 601. The pressure generated by the hydraulic oil props up the drum 5, and the second hydraulic gun is turned on to introduce hydraulic oil into the second flow channel 8. The hydraulic oil enters the cavity 1011, pushing the piston 4 to resist the drum 5, and the piston 4 drives the drum 5 to continue to move toward the large diameter end of the main shaft 6, so that the drum 5 is completely installed on the main shaft 6; When the drum 5 needs to be disassembled from the main shaft 6, the second fastener 3 is removed, hydraulic oil is introduced into the first flow channel 7, the hydraulic oil enters the receiving groove 601 to open the drum 5, and then the drum 5 is suspended with a sling.

[0027] The above embodiments are merely descriptions for the purpose of clearly illustrating the present invention, and are not limitations on the implementation methods. For those skilled in the art, other different forms of changes or modifications may be made based on the above descriptions. It is not necessary and impossible to enumerate all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A hydraulic installation tool, characterized in that , comprising a seat plate, at least one first fastener and at least one second fastener; The seat plate is provided with an embedding groove on the side facing the rotating drum, a piston is movably provided in the embedding groove, a receiving groove is provided on the outer peripheral side of the main shaft, the main shaft defines a first flow channel, the seat plate defines a second flow channel, the first flow channel is communicated with the receiving groove, a cavity is formed between the piston and the embedding groove, the cavity is communicated with the second flow channel, the piston is in sealing contact with the groove wall of the embedding groove, the seat plate is detachably connected to the main shaft via the first fastener, and the seat plate is detachably connected to the rotating drum via the second fastener.

2. The hydraulic installation tool according to claim 1, characterized in that: The seat plate is provided with an avoidance hole penetrating the seat plate in a direction parallel to the axial direction.

3. The hydraulic installation and removal tool according to claim 2, characterized in that: The first flow channel includes a first oil inlet, a first oil inlet section and a first connecting section which are connected in sequence, the first connecting section is connected to the accommodating groove, the avoidance hole, the first oil inlet and the first oil inlet section are coaxially arranged and parallel to the axial direction, and the first connecting section is parallel to the radial direction.

4. The hydraulic installation tool according to claim 3, characterized in that: The second flow channel includes a second oil inlet, a second oil inlet section and a second connecting section which are connected in sequence. The second oil inlet and the first oil inlet section are coaxially arranged and parallel to the radial direction. The second connecting section is parallel to the axial direction. The second connecting section is connected to the cavity.

5. The hydraulic installation and removal tool according to claim 1, characterized in that: A sealing groove is arranged on the outer peripheral side of the piston along the circumferential direction, and a sealing member is embedded in the sealing groove.

6. The hydraulic installation and removal tool according to claim 1, characterized in that: The tool further includes a first hydraulic gun and a second hydraulic gun, wherein the first hydraulic gun is communicated with the first flow channel, and the second hydraulic gun is communicated with the second flow channel.

7. The hydraulic installation and removal tool according to claim 4, characterized in that: The inner diameter of the first oil inlet is larger than the inner diameter of the first oil inlet section, and the second oil inlet is larger than the inner diameter of the second oil inlet section.

8. The hydraulic installation tool according to claim 1, characterized in that: The first fastening member is a first fastening bolt, and the second fastening member is a second fastening bolt.

9. The hydraulic installation and removal tool according to claim 5, characterized in that: The sealing element is an O-ring.

10. A method for installation and disassembly, characterized in that: The installation and removal using the tool according to any one of claims 1 to 9 comprises the following steps: Use the first fastener to install the seat plate to one end of the spindle, screw the second fastener to push the seat plate, and the seat plate will initially press the drum against the conical surface of the spindle; The second fastener is tightened and then loosened, and hydraulic oil is introduced into the first flow channel and the second flow channel respectively, and the piston presses against the drum and pushes the drum to move, thereby installing the drum on the main shaft; When the drum needs to be disassembled from the main shaft, the second fastener is removed, hydraulic oil is introduced into the first flow channel, and then the drum is disassembled.

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