CN202846483U - Bearing extractor - Google Patents

Abstract

A bearing removal tool, comprising a puller bottom plate and a puller, a puller screw, positioning pins, and a locking screw, a bearing hole with a diameter larger than the outer diameter of the bearing is opened in the center of the puller bottom plate, A step is arranged in the bearing hole, and the outer diameter of the step is equal to the outer diameter of the connecting rod. A locking screw hole with an outer diameter larger than the locking screw is opened in the center of the puller, four symmetrical positioning pin holes are opened around the locking screw hole, and a lock is opened at the position of the puller near the outer diameter. The tight screw holes are four lifting screw holes at the center of symmetry. The design of the bearing removal tool of the utility model uses the basic characteristics of the screw rod rotation, which greatly improves the maintenance efficiency and reduces the labor intensity. At the same time, maintenance costs are also greatly reduced because there is no need to replace the connecting rod.

Description

A kind of bearing extractor

Technical field

The utility model relates to a kind of extracting tool of tobacco equipment parts, relates in particular to a kind of bearing extractor.

Background technology

According to connecting rod installation structure, fast pull down bearing, need to by the end cap of connecting rod inside, use screw that bearing is pulled out in connecting rod.But when the dismounting bearing, often run into two difficult points, the one, the connecting rod lip is thinner, and connecting rod is difficult to locate at vice during dismounting; The 2nd, when pulling shaft holds, can can't pull out bearing because end cap rotates together with screw.These two difficult points have increased labour intensity to the maintenance personal to a certain extent, have had a strong impact on the efficient of maintenance.

The utility model content

The purpose of this utility model is to provide a kind of bearing extractor, to overcome two large difficult points of prior art.

Concrete scheme of the present utility model is as follows:

A kind of bearing extractor, comprise a driver-extractor base plate and a driver-extractor, rise and pull out screw rod, and alignment pin, a tie down screw, a diameter has been established greater than the dead eye of bearing outside diameter in described driver-extractor base plate center, is provided with a step in the dead eye, and the external diameter of described step equals the external diameter of connecting rod.

An external diameter has been opened greater than the tie down screw hole of tie down screw in the center of described driver-extractor, opened the dowel hole of four symmetries around the tie down screw hole, four that have opened take the tie down screw hole as symmetrical centre in the position of the close external diameter of driver-extractor are pulled out screw hole.

The bearing extractor that the utility model provides, wherein base plate is firmly fixing with connecting rod, has solved that connecting rod is difficult in the fixing problem of vice in the unloading process.Wherein utilize alignment pin that end cap is fixed, solved in the process of locking end cap, end cap is along with the problem of tie down screw rotation.The basic characteristics of screw rod rotation have been used in the design of the utility model bearing extractor, have greatly improved maintenance efficiency, have reduced labour intensity.Owing to no longer need to change connecting rod, maintenance cost is also greatly reduced simultaneously.

Description of drawings

Fig. 1 is the utility model bearing pulling tool duty generalized section;

Fig. 2 is the driver-extractor base plate generalized section of the utility model bearing pulling tool;

Fig. 3 is the driver-extractor top view of the utility model bearing pulling tool.

The specific embodiment

As depicted in figs. 1 and 2, a kind of bearing extractor, comprise a driver-extractor base plate 4 and a driver-extractor 5, rise and pull out screw rod 6, with 7, one tie down screws 8 of alignment pin, a diameter has been opened greater than the dead eye 9 of bearing outside diameter in described driver-extractor base plate 4 centers, be provided with a step 91 in the dead eye 9, the external diameter of described step 91 equals the external diameter of connecting rod 1.

As shown in Figure 3, an external diameter has been opened greater than the tie down screw hole 51 of tie down screw 8 in the center of described driver-extractor 5, opened the dowel hole 52 of four symmetries around tie down screw hole 51, four that have opened take tie down screw hole 51 as symmetrical centre in the position of driver-extractor 5 close external diameters are pulled out screw hole 53.As shown in Figure 1, the using method of bearing extractor: at first driver-extractor base plate 4 is positioned on the connecting rod 1, the step 91 of driver-extractor base plate dead eye 9 cooperates with connecting rod 1, so that stationary links 1 easily.Again driver-extractor 5 is placed on the driver-extractor base plate 4, penetrate dowel hole 52 with alignment pin 7 and insert in the fixing hole of bearing (ball) cover 2.Tie down screw 8 penetrates tie down screw hole 7 and is locked in end cap 2.Rotated at last and pulled out screw rod 6 bearing 3 is pulled out.

Claims (2)

1. A bearing removal tool, characterized in that it includes: a puller base plate (4), a puller (5), a puller screw (6), a positioning pin (7) and a locking screw (8), the A bearing hole (9) with a diameter larger than the outer diameter of the bearing is provided in the center of the puller bottom plate (4), and a step (91) is arranged in the bearing hole (9), and the outer diameter of the step (91) is equal to that of the connecting rod (1) the outer diameter. 2. A bearing removal tool according to claim 1, characterized in that the center of the puller (5) is provided with a locking screw hole (51) whose outer diameter is larger than that of the locking screw (8), A positioning pin hole (52) is arranged around the locking screw hole (51), and a pulling screw hole (53) is arranged near the outer diameter side of the puller (5).

Images