CN207223853U - A kind of outside framework oil seal stripping attachment - Google Patents

Abstract

The utility model discloses a skeleton oil seal remover, which comprises a cylindrical arm rod. One end of the arm rod is open, and the other end is provided with a push rod. The push rod passes through the end surface of the arm rod and is threadedly connected with the end face of the arm rod. , the side wall of the arm is provided with an opening slot, and an expansion ring is sleeved outside the arm, and the expansion ring is connected with the arm through an adjusting screw, and the adjusting screw passes through the side wall of the expansion ring and the arm in sequence along the radial direction of the expansion ring The side wall, the adjusting screw rod are all threadedly connected with the expansion ring and the arm rod. The frame oil seal remover with this structure improves the removal efficiency of the frame oil seal, thereby improving the overall efficiency of maintenance operations.

Description

A skeleton oil seal remover

technical field

The utility model relates to the field of mechanical tools, in particular to a skeleton oil seal remover.

Background technique

As shown in Figure 1, the cigarette conveying mechanism (i.e. manipulator) of the ZJ17 crimping unit is the one with the best effect of conveying cigarettes among the high-speed cigarette machines imported in China, and it is also the most complicated part in the ZJ17 unit. Using 6-8 (according to the length of the cigarette) transfer arms, using negative pressure air to absorb the cigarettes, and smoothly and gently transfer the double-length cigarettes to the receiving drum groove of the machine, the equipment of the manipulator has greatly improved Productivity. A small-diameter skeleton oil seal is installed on the gear shaft around which the manipulator (hereinafter referred to as the spider hand) transfer arm rotates.

As shown in Figure 2, the steel shell of the outer ring of the skeleton oil seal matches the inner hole of the cavity, and the inner ring is tightly hugged on the gear shaft under the action of the compression spring. The outer surface of the oil seal is 4mm deep from the outer plane of the cavity mouth, and the difference between the inner and outer diameters of the oil seal is only 8mm , that is, the gap between the mouth and the gear shaft is only 4mm, and it is difficult to disassemble directly on the equipment. If the gear shaft or cavity is damaged during improper disassembly, oil leakage will occur during operation and cause accidents. After the spider hand is completely disassembled, it takes time and effort to remove the skeleton oil seal, which seriously restricts the work efficiency of the maintenance personnel.

Utility model content

In view of this, the purpose of this utility model is to provide a frame oil seal remover, so as to improve the removal efficiency of the frame oil seal, and further improve the overall efficiency of maintenance operations.

The utility model solves the above problems through the following technical means: a skeleton oil seal remover, including a cylindrical arm, one end of the arm is open, and the other end is provided with a push rod, the push rod passes through the end surface of the arm and It is threadedly connected with the end face of the arm, the side wall of the arm is provided with an opening groove, and an expansion ring is sleeved outside the arm, and the expansion ring is connected with the arm through an adjusting screw, and the adjusting screw passes through the expansion ring in sequence The side wall of the ring and the side wall of the arm rod, and the adjusting screw rod are threadedly connected with the expansion ring and the arm rod, and there is an expansion gap between the expansion ring and the outer wall of the arm rod.

Further, the open slot extends axially from the open end of the arm rod.

Further, the expansion ring is connected to the arm rod through two adjusting screw rods arranged symmetrically with respect to the center of the expansion ring.

Further, the open end of the arm is connected to the main body of the arm through a cone.

Further, the open end of the arm is provided with barbs.

Beneficial effects of the utility model: the skeleton oil seal remover of the utility model includes a cylindrical arm rod, one end of the arm rod is open, and the other end is provided with a push rod, and the push rod passes through the end surface of the arm rod and is connected to the arm The end face of the rod is threaded, the side wall of the arm is provided with an opening groove, and the outer part of the arm is provided with an expansion ring, and the expansion ring is connected with the arm through an adjusting screw, and the adjusting screw passes through the side of the expansion ring in sequence along the radial direction of the expansion ring The wall and the side wall of the arm rod, the adjusting screw rod, the expansion ring and the arm rod are all threaded, and there is an expansion gap between the expansion ring and the outer wall of the arm rod. The skeleton oil seal remover with this structure, on the one hand, does not need to completely remove the spider hand and the gear shaft during the disassembly process, and can realize the one-time overall removal of the oil seal, which improves the removal efficiency of the oil seal, thereby improving the overall efficiency of maintenance operations , On the other hand, during the disassembly process, the forces in all directions are relatively uniform, which can not only ensure that the oil seal is evenly stressed, but also avoid damage to the gear shaft or the cavity.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is a schematic diagram of a cigarette transmission mechanism in the prior art;

Figure 2 is a schematic diagram of the assembly of the skeleton oil seal;

Fig. 3 is the structural representation of the utility model;

Figure 4 is a cross-sectional view of the arm;

Figure 5 is a cross-sectional view of the expansion ring.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings, as shown in Figures 1-5: the utility model provides a skeleton oil seal remover, including a cylindrical arm 1, one end of the arm is open, and the other end is An ejector rod 2 is provided, and the ejector rod passes through the end face of the arm rod and is threadedly connected with the end face of the arm rod. The side wall of the arm rod is provided with an opening groove 3, and an expansion ring 4 is set on the outside of the arm rod. 5. It is connected with the arm, and the adjusting screw passes through the side wall of the expansion ring and the side wall of the arm in sequence along the radial direction of the expansion ring. The adjusting screw is threadedly connected with the expansion ring and the arm, and there is expansion gap. Specifically, the opening groove extends axially from the opening end of the arm rod; the expansion ring is connected to the arm rod through two adjusting screws arranged symmetrically with respect to the center of the expansion ring; the opening end of the arm rod passes through a cone 6. It is connected with the body of the boom, and the size of the boom and the expansion ring can be designed according to the needs, which is not limited here. In specific use, the opening end of the arm rod extends into the inner ring of the skeleton oil seal, the arm rod is outside the gear shaft, the end of the ejector rod inside the arm rod is in contact with the end of the gear shaft, and the cap body of the adjusting screw is in contact with the outer wall of the expansion ring. In this way, the adjustment screw is axially positioned, the expansion ring is fixed, and the adjustment screw is screwed in. Since the expansion ring is fixed and the adjustment screw has been positioned in the axial direction, the adjustment screw will pull the arm side in the opposite direction during the process of screwing in the adjustment screw. The wall, and the side wall of the arm is provided with an opening slot, so the side wall of the arm will expand outwards to a suitable size, so that the oil seal is clamped on the opening end of the arm, and finally the ejector rod is rotated. Similarly, one end of the ejector rod is The gear shaft is limited. During the process of rotating the ejector rod, the arm rod will move in the opposite direction, thereby removing the oil seal. Through the analysis of the specific structure and disassembly process of the above-mentioned remover, it is not difficult to conclude that the skeleton oil seal remover with this structure, on the one hand, does not need to completely remove the spider hand and the gear shaft during the disassembly process, and can realize the one-time integration of the oil seal Removal improves the removal efficiency of the oil seal, thereby improving the overall efficiency of maintenance operations. On the other hand, the force in all directions is relatively uniform during the disassembly process, which can not only ensure that the oil seal is evenly stressed, but also avoid damage to the gear shaft or cavity.

As a further improvement of the above technical solution, barbs 7 are provided at the open end of the arm. When the oil seal snaps into the open end of the arm, the barbs prevent the oil seal from slipping off.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (5)

1. A kind of 1. outside framework oil seal stripping attachment, it is characterised in that：Including cylindric armed lever, the armed lever one end open, the other end Mandril is provided with, the mandril is connected through armed lever end face and with armed lever end-face helical, and armed lever side wall offers open slot, armed lever Outer cover is equipped with tensioner ring, and the tensioner ring is connected by adjusting screw rod with armed lever, the adjusting screw rod along tensioner ring radially according to It is secondary to be threadedly coupled with tensioner ring and armed lever through expansion ring-side wall and armed lever side wall, adjusting screw rod, outside tensioner ring and armed lever There is expansion gap between wall.
2. 2. outside framework oil seal stripping attachment according to claim 1, it is characterised in that：The open slot by armed lever openend edge Armed lever is axially extending.
3. 3. outside framework oil seal stripping attachment according to claim 1, it is characterised in that：The tensioner ring passes through in tensioner ring Two adjusting screw rods that the heart is arranged symmetrically are connected with armed lever.
4. 4. outside framework oil seal stripping attachment according to claim 1, it is characterised in that：The openend of armed lever passes through cone and arm The body connection of bar.
5. 5. outside framework oil seal stripping attachment according to claim 1, it is characterised in that：The openend of armed lever is provided with hangnail.