CN218285369U - Small motor bearing puller - Google Patents

Abstract

The utility model relates to a dismantlement field of bearing and special axle, concretely relates to small electric machine bearing draws horse. Comprises a T-shaped main shaft, an ellipsoidal slide hammer, a pull claw shaft and a pair of L-shaped pull claws; the top end of the main shaft is provided with a circular baffle, the middle part of the main shaft is provided with an O-shaped baffle I, and a circular through hole is formed near the bottom end of the main shaft; the sliding hammer is of a through structure, can be freely sleeved on the main shaft in a sliding mode, and is arranged between the circular baffle and the O-shaped baffle I; the pull claw shaft is a double-end screw rod and penetrates through the circular through hole; the two pull claws are slidably arranged at two ends of the pull claw shaft respectively, two pull claw shaft nuts are arranged on threads at two ends of the pull claw shaft respectively, and the two pull claw shaft nuts clamp the two pull claws in the middle. The utility model discloses a smooth hammer design uses in a flexible way simply, has avoided loaded down with trivial details step, improves work efficiency.

Description

Small motor bearing puller

Technical Field

The utility model relates to a bearing and special axle's dismantlement field, concretely relates to small motor bearing draws horse.

Background

The puller is a general bench tool for detaching parts such as a bearing or a disc on a shaft, and is generally used for detaching fasteners such as various discs, bearings, flanges, flywheels and the like at present.

The outer clamping type bearing disassembling tools applied to the market mainly have two types: one is a split type hydraulic puller, and in the mode, because the hydraulic puller is heavy, two persons are needed to operate in most cases, and the process is complicated; secondly, utilize and draw the claw to pull bearing outer ring bottom, rotatory ejector pin that has the screw thread withstands motor shaft tip position and slowly pulls out a horse of drawing of bearing, this kind of mode is also loaded down with trivial details and need use the spanner to twist the ejector pin, and it is not high to dismantle motor bearing efficiency when maintaining many small motors.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small motor bearing draws horse, its aim at solve present draw horse self heavier, complex operation is unfavorable for the problem of maintenance small motor.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a small motor bearing puller, which comprises a T-shaped main shaft, an ellipsoidal slide hammer, a pull claw shaft and a pair of L-shaped pull claws; the novel spindle is characterized in that a circular baffle is arranged at the top end of the spindle, an O-shaped baffle I is arranged in the middle of the spindle, and a circular through hole is formed in the position close to the bottom end of the spindle. The sliding hammer is of a through structure, the sliding hammer can be freely sleeved on the main shaft in a sliding mode, and the sliding hammer is arranged between the circular baffle and the O-shaped baffle I. The pull claw shaft is a double-end screw rod and penetrates through the circular through hole. The two pull claws are arranged at two ends of the pull claw shaft in a sliding mode respectively, two pull claw shaft nuts are arranged on threads at two ends of the pull claw shaft respectively, and the two pull claw shaft nuts clamp the two pull claws in the middle.

Furthermore, an O-shaped baffle plate II is arranged near the bottom end of the main shaft and arranged on the upper side of the circular through hole.

Further, the upper end and the lower end of the sliding hammer are respectively provided with a hand guard.

Furthermore, the surface of the sliding hammer is provided with anti-skid grains.

Further, the round baffle, the O-shaped baffle I and the O-shaped baffle II are all subjected to rounding treatment.

The utility model discloses the beneficial effect who reaches does:

1. the sliding hammer is flexible and simple to use, so that complicated steps are avoided, and the working efficiency is improved;

2. the disc baffle at the top of the main shaft and the long shaft body of the main shaft are designed into a whole, so that the hidden danger that the baffle is stressed to fall off due to the knocking of a sliding hammer is solved, the stress area of the sliding hammer is enlarged due to the disc type design, the working efficiency of constructors is improved, and personal injury is avoided;

3. the lower half part of the main shaft is provided with a supporting area, so that a worker can conveniently hold the utility model, and the stress direction of the bearing is drawn by the guide belt;

4. an O-shaped baffle is added at the bottom of the long shaft body of the main shaft, so that personal injury caused by the ejection of the bearing when the bearing is pulled is avoided;

5. the structure is simple, the production cost is low, and the large-scale mass production can be realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a sectional view of the present invention.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a usage state diagram of the present invention.

Fig. 5 is an enlarged view of a portion a in fig. 4.

In the figure, 1, main shaft; 11. a circular baffle plate; 12. a sliding hammer active area; 13. a holding area; 2. a slide hammer; 21. protecting hands; 3a, an O-shaped baffle plate I; 3b, an O-shaped baffle plate II; 4. a claw shaft nut; 5. a claw shaft; 6. and pulling the claw.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, the following description is given with reference to the accompanying drawings.

As shown in fig. 1-5, the utility model provides a small motor bearing puller, which comprises a T-shaped main shaft 1, an ellipsoidal sliding hammer 2, a pulling claw shaft 5 and a pair of L-shaped pulling claws 6.

The main shaft 1 is T-shaped, a circular baffle 11 is arranged at the top end of the main shaft 1, and the circular baffle 11 is used for bearing the knocking stress of the sliding hammer 2 when the bearing is pulled. The main shaft 1 and the circular baffle are of an integrated structure so as to enhance the integral structural strength. The middle part of the main shaft 1 is provided with an O-shaped baffle plate I3 a, the part of the main shaft 1 between the circular baffle plate 11 and the O-shaped baffle plate I3 a is a sliding hammer active area 12, and the length of the sliding hammer active area 12 ensures that the sliding hammer 2 has enough active space so that the sliding hammer 2 can accumulate enough kinetic energy. A circular through hole is arranged near the bottom end of the main shaft 1, and the diameter of the through hole is equal to or slightly larger than that of the pull claw shaft 5 so as to allow the pull claw shaft 5 to penetrate through the through hole. An O-shaped baffle plate II 3b is arranged near the bottom end of the main shaft 1, the O-shaped baffle plate II 3b is arranged on the upper side of the circular through hole, the part of the main shaft 1 between the O-shaped baffle plate I3 a and the O-shaped baffle plate II 3b is a supporting area 13, and the length of the supporting area 13 is greater than the width of the palm part of a common constructor; and the O-shaped baffle II 3b is used for preventing the damage to constructors caused by accidental popping of the bearing when the bearing is pulled.

The sliding hammer 2 is of a through structure, hand guards 21 are arranged at the upper end and the lower end of the sliding hammer 2 respectively, and therefore the phenomenon that when a worker pulls the bearing, the worker breaks off the hands and smashes the circular baffle 11 to be injured is prevented. In addition, the surface of the slide hammer 2 is provided with anti-skid lines so as to increase friction force and further reduce the risk of injury. The sliding hammer 2 is freely and slidably sleeved on the main shaft 1, and specifically, the sliding hammer 2 is arranged in the sliding hammer moving area 12.

The pull claw shaft 5 is a double-thread screw, and two ends of the pull claw shaft are respectively provided with a section of thread for penetrating through the pull claw 6 and then being meshed with the pull claw shaft nut 4 in a thread manner. The pull claw shaft 5 penetrates through the circular through hole, and the lengths of two sides of the main shaft 1 are ensured to be approximately equal. Two draw claw 6 slidable respectively to set up draw the both ends of claw axle 5, be provided with one on the both ends screw thread of drawing claw axle 5 respectively and draw claw axle nut 4, two draw claw axle nut 4 with two draw claw 6 to press from both sides in the middle of.

Further, round baffle 11, O type plate washer I3 a and O type plate washer II 3b all carry out the radius angle and handle, prevent that workman's hand is by the fish tail when using.

When in specific use, the adhesive tape is used,

the two pull claw shaft nuts 4 are screwed outwards respectively to separate the two pull claws 6 by a certain distance.

The heads of the two pulling claws 6 are further arranged at the bottom of the outer ring of the bearing to be pulled.

And further screwing the two pull claw shaft nuts 4 inwards respectively to adjust the opening distance of the two pull claws 6 so that the claw heads of the two pull claws 6 can tightly pull the bottom of the outer ring of the bearing to be pulled.

Further depending on the direction of removal of the bearing to be pulled, the holding area 13 is gripped by one hand, and then an outward force is applied to the puller in the direction of pulling the bearing, so that the head of the pull claw 6 tightly pulls the bottom of the outer ring of the bearing to be pulled.

And further, the other hand holds the sliding hammer 2 to continuously slide along the direction of the main shaft 1 to knock the circular baffle 11 at the top of the main shaft 1, an outward acting force is applied to the bearing by using the inertia effect, and the bearing can be easily taken out.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (5)

1. The utility model provides a small motor bearing draws horse which characterized in that: comprises a T-shaped main shaft (1), an ellipsoidal sliding hammer (2), a pull claw shaft (5) and a pair of L-shaped pull claws (6); a circular baffle (11) is arranged at the top end of the main shaft (1), an O-shaped baffle I (3 a) is arranged in the middle of the main shaft (1), and a circular through hole is formed near the bottom end of the main shaft (1); the sliding hammer (2) is of a through structure, the sliding hammer (2) is sleeved on the main shaft (1) in a free sliding mode, and the sliding hammer (2) is arranged between the circular baffle (11) and the O-shaped baffle I (3 a); the pull claw shaft (5) is a double-end screw, and the pull claw shaft (5) penetrates through the circular through hole; two draw claw (6) slidable respectively to set up draw the both ends of claw axle (5), be provided with one on the both ends screw thread of drawing claw axle (5) respectively and draw claw axle nut (4), two draw claw axle nut (4) with two draw claw (6) to press from both sides in the centre.

2. The small motor bearing puller according to claim 1, wherein: and an O-shaped baffle plate II (3 b) is arranged near the bottom end of the main shaft (1), and the O-shaped baffle plate II (3 b) is arranged on the upper side of the circular through hole.

3. The small motor bearing puller according to claim 1, wherein: the upper end and the lower end of the sliding hammer (2) are respectively provided with a hand guard (21).

4. The small motor bearing puller according to claim 3, wherein: and anti-skid grains are arranged on the surface of the sliding hammer (2).

5. The small motor bearing puller according to any one of claims 1 to 4, wherein: round baffle (11), O type plate washer I (3 a) and O type plate washer II (3 b) all carry out the radius angle and handle.

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