Disassembling tool for oil seal in rocker of cigarette making machine

Abstract

The utility model discloses a disassembling tool for an oil seal in a rocker of a cigarette making machine, a crank rocker mechanism comprises a crank and a rocker, a mounting shaft of the crank is rotatably mounted in a mounting cavity of the rocker, the oil seal is arranged in the mounting cavity of the rocker, and the oil seal and the mounting shaft of the crank are in sealed running fit. The disassembling tool comprises a sliding rod and a sliding weight which are in sliding fit, limiting blocks for limiting the sliding stroke of the sliding weight are arranged at the upper end and the lower end of the sliding rod respectively, a coaxial screw is arranged at the lower end of the sliding rod and sleeved with a supporting frame in a threaded mode, at least two claws are evenly distributed on the periphery of the supporting frame in the circumferential direction, and the upper ends of the claws are hinged to the supporting frame. A hook tip protruding outwards is arranged at the lower end of the hook claw, and the bottom of the oil seal is hooked through the hook tip of the hook claw. Compared with the prior art, the oil seal dismounting device has the advantages that the oil seal in the rocker can be dismounted conveniently, and the rocker cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, in particular to a disassembly tool for an oil seal in a rocker arm of a cigarette making machine. Background Art

[0002] At present, the bell-mouth mechanism of the ZJ116A cigarette making machine is mainly used to provide necessary support for cigarette cutting. When in the cutting position, the maximum speed of the bell-mouth mechanism's forward motion should be consistent with the speed of the cigarette rod. The bell-mouth mechanism is mainly driven by a crank rocker mechanism to drive the bell-mouth seat to do reciprocating motion. The vibrating plate is fixed together with the left end of the rocker to play a supporting role.

[0003] The crank-rocker mechanism includes a crank and a rocker. An eccentric mounting shaft is provided at one end of the crank. The mounting shaft of the crank is rotatably supported on a bearing in a mounting cavity at one end of the rocker. The crank-rocker mechanism is forcibly lubricated by the centralized lubrication system of the cigarette making machine. Lubricating oil is injected into the mounting cavity of the rocker. An oil seal is provided between the mounting shaft of the crank and the inner wall of the mounting cavity of the rocker to prevent the lubricating oil from leaking out. After a long period of high-speed operation of the crank, the lip of the oil seal at the mating surface often wears out and leaks, resulting in oil leakage. As the oil seal in the rocker rotates, the lubricating oil splashes outward and contaminates the cigarette, causing oil fume quality defects. Therefore, once oil leakage is found, the leaking point must be repaired or the oil seal replaced in time, but there are many difficulties in the repair process. In the actual maintenance process, since the oil seal is embedded in the rocker mounting cavity, at present, because there is no special oil seal removal tool, the oil seal is generally removed by using a screwdriver or a screwdriver to pry the oil seal. This method is time-consuming and labor-intensive and can easily damage the inner wall of the rocker mounting cavity, seriously affecting the accuracy of the crank rocker mechanism and the sealing performance after replacing the oil seal. After repair, the crank rocker mechanism is prone to oil leakage again. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a disassembly tool for an oil seal in a rocker arm of a cigarette making machine, so as to realize convenient disassembly of the oil seal in the rocker arm without damaging the rocker arm.

[0005] The utility model is realized by the following technical solutions:

[0006] A disassembly tool for an oil seal in a rocker arm of a cigarette making machine, wherein the crank rocker mechanism comprises a crank and a rocker, wherein the mounting shaft of the crank is rotatably mounted in the mounting cavity of the rocker, wherein an oil seal is arranged in the mounting cavity of the rocker, and the oil seal and the mounting shaft of the crank are in sealed rotational cooperation, wherein the disassembly tool comprises a sliding rod and a sliding hammer that are slidably matched, wherein upper and lower ends of the sliding rod are respectively provided with limit blocks for limiting the sliding stroke of the sliding hammer, wherein the lower end of the sliding rod is provided with a coaxial screw rod, wherein a support frame is threadedly mounted on the screw rod, wherein at least two hook claws are evenly distributed along the circumferential direction on the periphery of the support frame, wherein the upper end of the hook claw is hinged on the support frame, and the lower end of the hook claw is provided with a hook tip protruding outward, and the bottom of the oil seal is hooked by the hook tip of the hook claw.

[0007] As a preferred solution for the above-mentioned disassembly tooling, at least two support blocks are evenly distributed circumferentially on the periphery of the support frame, and the upper ends of the hook claws are respectively hinged on the support blocks. Each support block is provided with a mounting groove, and the upper ends of the hook claws are embedded in the mounting grooves of the corresponding support blocks. Bolts are simultaneously passed through the support blocks and the upper ends of the hook claws and nuts are screwed on to achieve hinged connection between the upper ends of the hook claws and the support blocks.

[0008] As a preferred solution for the above-mentioned disassembly tooling, the middle section of the hook claw is bent toward the axis of the screw to form a bent portion, and the lower end of the screw is a conical end that is larger at the top and smaller at the bottom. As the screw moves downward, it can contact the bent portions of each hook claw and gradually push each hook claw outward.

[0009] As a preferred solution of the above-mentioned disassembly tool, the limit block at the lower end of the slide rod is an external hexagonal limit block.

[0010] As a preferred solution of the above-mentioned disassembly tool, three hook claws are evenly distributed along the circumferential direction on the periphery of the support frame.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model provides a disassembly tool for the oil seal in the rocker arm of a cigarette making machine, which utilizes the thread cooperation of the screw rod and the support frame, and can realize the linear movement of the screw rod in the axial direction by fixing the support frame and rotating the screw rod, thereby realizing the opening action of each hook claw in contact with the screw rod, so that the hook claw hooks the bottom of the oil seal through the hook tip; then the sliding hammer is slid up and down, and the sliding hammer repeatedly hits the limit block at the upper end of the sliding rod, and the limit block transmits the impact force to the hook claw, so that the hook claw and the oil seal can be separated from the installation cavity of the rocker arm, so that the oil seal is taken out. The whole operation process is convenient, fast, time-saving and labor-saving, and the work efficiency of oil seal disassembly is improved, and the inner side wall of the rocker arm installation cavity is not damaged, the accuracy of the crank rocker mechanism is improved, and the sealing of the crank rocker mechanism after the new oil seal is replaced is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional assembly diagram of the utility model.

[0014] Figure 2 It is a stereogram of the utility model in use state.

[0015] Figure 3 It is a cross-sectional view of the rocker of the utility model.

[0016] Figure 4 It is a three-dimensional support frame of the utility model.

[0017] Figure 5 It is a three-dimensional diagram of the hook claw of the utility model.

[0018] Numbers in the figure: 1 rocker; 2 mounting cavity; 3 oil seal; 4 slide rod; 5 slide hammer; 6 upper limit block; 7 lower limit block; 8 screw rod; 9 support frame; 10 hook claw; 11 hook tip; 12 support block; 13 mounting groove; 14 bolt; 15 nut; 16 bending part; 17 internal retaining spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1 to 5 The present embodiment discloses a disassembly tool for the oil seal in the rocker of a cigarette making machine. The crank rocker mechanism comprises a crank and a rocker 1. The mounting shaft of the crank is rotatably mounted in the mounting cavity 2 of the rocker 1. An oil seal 3 is arranged in the mounting cavity 2 of the rocker 1. The oil seal 3 and the mounting shaft of the crank are in sealed rotational cooperation. The disassembly tool comprises a sliding rod 4 and a sliding hammer 5 that are slidably matched. Limit blocks for limiting the sliding stroke of the sliding hammer 5 are respectively arranged at the upper and lower ends of the sliding rod 4. The upper and lower limit blocks are respectively an upper limit block 6 and a lower limit block 7. The lower limit block 7 at the lower end of the sliding rod 4 is an outer hexagonal limit block, which is convenient for use with a wrench to drive the sliding rod 4 to rotate. A coaxial screw rod 8 is provided at the lower end of the slide rod 4, a support frame 9 is threadedly sleeved on the screw rod 8, at least two hook claws 10 are evenly distributed along the circumferential direction on the outer periphery of the support frame 9, the upper end of the hook claw 10 is hinged on the support frame 9, and the lower end of the hook claw 10 is provided with a hook tip 11 protruding outward, and the bottom of the oil seal 3 is hooked by the hook tip 11 of the hook claw 10.

[0021] At least two support blocks 12 are evenly distributed along the circumferential direction on the periphery of the support frame 9, and the upper ends of the hook claws 10 are respectively hinged on the support blocks 12. Each support block 12 is provided with a mounting groove 13, and the upper ends of the hook claws 10 are embedded in the mounting grooves 13 of the corresponding support blocks 12. Bolts 14 pass through the support blocks 12 and the upper ends of the hook claws 10 at the same time, and the nuts 15 are screwed on to realize the hinge connection between the upper ends of the hook claws 10 and the support blocks 12.

[0022] In this embodiment, three support blocks 12 are evenly distributed along the circumferential direction on the periphery of the support frame 9, and three hooks 10 are evenly distributed along the circumferential direction on the periphery of the support frame 9. The middle section of the hook 10 is bent toward the axis of the screw 8 to form a bent portion 16, and the lower end of the screw 8 is a tapered end with a larger upper portion and a smaller lower portion. As the screw 8 moves downward, it can contact the bent portion 16 of each hook 10 and gradually push each hook 10 outward.

[0023] When the oil seal 3 needs to be removed, the rocker 1 is placed on a clamping mechanism such as a vise to clamp and fix it, and then the inner retaining spring 17 on the top of the oil seal 3 is removed. The screw rod 8 of the disassembly tool is rotated counterclockwise to move the screw rod 8 upward relative to the support frame 9 and gradually disengage from the bent portion 16 of the three hooks 10, so that the three hooks 10 are retracted inward, and then the three retracted hooks 10 are placed in the installation cavity 2 of the rocker 1, and the support frame 9 is kept stationary. Then, the screw rod 8 is driven to rotate clockwise by using a wrench and the lower limit block 7, so that the screw rod 8 rotates and moves downward, so that the screw rod 8 gradually contacts the bent portion 16 of the three hooks 10, and then the three hooks 10 are gradually pushed outward to make them gradually open, until the hooks at the bottom of the three hooks 10 are The tip 11 hooks the bottom of the oil seal 3, and the hand-held slide hammer 5 slides upward and hits the upper limit block 6. The upper limit block 6 transmits the impact force to the support frame 9 threadedly connected to the screw rod 8, and then transmits it to the three hook claws 10 connected to the support frame 9. The three hook claws 10 drive the oil seal 3 to move outward along the axial direction through the hook tip 11, and the rocker 1 is fixed in position due to the clamping effect of the bench vise. After repeated collisions, the oil seal 3 in the installation cavity 2 of the rocker 1 gradually separates from the rocker 1 upward, thereby realizing the removal of the oil seal 3, and then the new oil seal 3 is installed, thereby realizing the replacement of the oil seal 3. The entire operation process is convenient, fast, time-saving and labor-saving, which improves the work efficiency of disassembling the oil seal 3 in the rocker 1, and does not cause damage to the inner side wall of the installation cavity 2 of the rocker 1, improves the accuracy of the crank rocker 1 mechanism, and ensures the sealing of the crank rocker 1 mechanism after replacing the new oil seal 3.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for removing the oil seal in the rocker of a cigarette making machine, wherein the crank rocker mechanism comprises a crank and a rocker, wherein the mounting shaft of the crank is rotatably mounted in the mounting cavity of the rocker, wherein an oil seal is arranged in the mounting cavity of the rocker, and the oil seal and the mounting shaft of the crank are in sealed rotational cooperation, wherein the tool is characterized in that: The disassembly tooling includes a sliding rod and a sliding hammer that slide together. The upper and lower ends of the sliding rod are respectively provided with limit blocks for limiting the sliding stroke of the sliding hammer. The lower end of the sliding rod is provided with a coaxial screw rod. A support frame is threadedly mounted on the screw rod. At least two hook claws are evenly distributed along the circumferential direction on the periphery of the support frame. The upper end of the hook claw is hinged on the support frame. The lower end of the hook claw is provided with a hook tip protruding outward, and the bottom of the oil seal is hooked by the hook tip of the hook claw.

2. A disassembly tool for the oil seal inside the rocker arm of a cigarette making machine as claimed in claim 1, characterized in that: At least two support blocks are evenly distributed along the circumferential direction on the periphery of the support frame, and the upper ends of the hook claws are respectively hinged on the support blocks. Each support block is provided with a mounting groove, and the upper ends of the hook claws are embedded in the mounting grooves of the corresponding support blocks. Bolts are simultaneously passed through the support blocks and the upper ends of the hook claws and nuts are screwed on to realize the hinge connection between the upper ends of the hook claws and the support blocks.

3. A disassembly tool for the oil seal inside the rocker arm of a cigarette making machine as claimed in claim 1, characterized in that: The middle section of the hook is bent toward the axis of the screw to form a bent portion, and the lower end of the screw is a tapered end that is larger at the top and smaller at the bottom. As the screw moves downward, it can contact the bent portions of each hook and gradually push each hook outward.

4. A disassembly tool for the oil seal in the rocker arm of a cigarette making machine as claimed in claim 1, characterized in that: The limit block at the lower end of the slide rod is an outer hexagonal limit block.

5. The tool for disassembling the oil seal in the rocker arm of a cigarette making machine according to claim 1, characterized in that: The outer periphery of the support frame is evenly distributed with three hook claws along the circumferential direction.

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