CN202607582U - Crank arm type dismounting device - Google Patents

Abstract

The utility model discloses a novel crank arm type disassembly device, which includes a screw positioning device 1, a load beam 2, a transmission device 3, a screw rod 9, a pull rod 10, and a hoop 11. The load beam 2 and the pull rod 10 are connected to form a frame, and the described load beam 2 is provided with a screw positioning device 1, and the screw 9 in the screw positioning device 1 is in transmission cooperation with the transmission device 3; the lower end of the pull rod 10 is connected with the hoop 11 Cooperate. The utility model adopts a modular design, which is easy to operate, saves labor and has strong practicability. The power input operation point can be turned vertically, and the bearings, sprockets, pulleys and Knee-arm dismounting device for various other components. The utility model adopts a worm gear and a worm drive device, which has the characteristics of power vertical steering and large transmission ratio, and can extend the disassembly operation to the outside of the box body and pipeline inspection door, saving time and labor for the disassembly operation of parts.

Description

A crank arm disassembly device

technical field

The utility model belongs to the technical field of maintenance tools, and further belongs to the technical field of component dismounting tools, and specifically relates to a crank arm type dismounting device with simple structure, easy operation, and the ability to conveniently and quickly disassemble workpieces in a narrow space. the

Background technique

In mechanical equipment, there are many parts installed on the shaft, such as bearings, sprockets, and pulleys. Some of these parts are inside the box and pipes, and are limited by the operating space. Only after the box and pipes are removed can ordinary pullers be used to remove such damaged parts, which is time-consuming and labor-intensive. There are also some parts with irregular shape and inclined surface, such as: UCP type bearing with seat. The uneven force in the middle will easily lead to the skew of the puller. It takes multiple adjustments of the puller to complete the disassembly of the parts, and the efficiency is relatively low. And when installing the above parts, due to the small operating space, only the traditional knocking method can be used, which is not only inefficient, but also easily causes damage to some parts with high precision requirements. the

Utility model content

The purpose of the utility model is to provide a crank arm type dismounting device which is simple in structure, easy to operate, and can conveniently and quickly disassemble the workpiece in the narrow space. the

The purpose of this utility model is achieved in this way, including a screw positioning device, a load beam, a transmission device, a screw, a pull rod, and a hoop. The load beam and the pull rod are connected to form a frame, and the load beam is provided with a wire Rod positioning device, the screw in the screw positioning device is in transmission cooperation with the transmission device; the lower end of the pull rod is matched with the hoop. the

The utility model adopts a modular design, which is easy to operate, labor-saving, and has strong practicability. The power input operation point can be turned vertically, and the bearings, sprockets, pulleys, and Knee-arm dismounting device for various other components. The utility model adopts a worm gear and a worm drive device, which has the characteristics of power vertical steering and large transmission ratio, and can extend the disassembly operation to the outside of the box body and pipeline inspection door, saving time and labor for the disassembly operation of parts. the

Description of drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

Fig. 2 is a partial sectional view of A-A of Fig. 1;

Fig. 3 is the B-B direction partial sectional view of Fig. 1;

In the figure, 1-screw positioning device, 2-loading beam, 3-transmission device, 4-worm gear, 5-thrust ball bearing, 6-worm, 7-thrust cylindrical roller bearing, 8-casing, 9-wire Rod, 10-pull rod, 11-clamp hoop, 12-location block, 13-press fitting sleeve, 14-workpiece, 15-lower end cover, 16-side end cover. the

Detailed ways

As shown in Figures 1-3, the utility model includes a screw positioning device 1, a load beam 2, a transmission device 3, a screw 9, a pull rod 10, and a hoop 11, and the load beam 2 and the pull rod 10 are connected to form a machine Frame, the said load beam 2 is provided with a screw positioning device 1, the screw 9 in the screw positioning device 1 is in transmission cooperation with the transmission device 3; the lower end of the pull rod 10 is matched with the hoop 11. the

The transmission device 3 is a worm gear transmission device, including a worm wheel 4 and a worm 6, the worm 6 is connected with the driving mechanism, and the worm wheel 4 is in dynamic cooperation with the lead screw 9. the

Said screw mandrel positioning device 1 is provided with a waist-shaped hole for easy assembly. the

Thrust ball bearings 5 are arranged at both ends of the worm wheel 4 . the

The two ends of the worm 6 are provided with thrust cylindrical roller bearings 7 . the

A lower end cover 15 and a side end cover 16 are arranged on the casing 8 respectively. the

The hoop 11 is a split structure. the

A positioning block 12 is arranged on the hoop 11 . the

The positioning block 12 is detachable. the

The lower end of the lead screw 9 is provided with a press-fit sleeve 13, and the press-fit sleeve 13 cooperates with the hoop 11 in work. the

Working principle and working process of the utility model:

When dismounting parts, hoop 11 is installed on the assembling shaft of dismantling 14 workpieces, load beam 2 is connected with hoop 11 with pull bar 10. Use an extension rod and a ratchet wrench to turn the worm 6 outside the maintenance door of the box body and pipeline to drive the worm gear 4, drive the screw 9 to withstand the shaft head and run in a straight line, and transmit the force to the hoop 11 through the load beam 2 and the pull rod 10. The hoop 11 pushes against the workpiece 14 and pulls it out. the

When installing 14 workpieces, install the positioning block 12 on the hoop 11 to keep the hoop 11 fixed, put the press-fit sleeve 13 against the 14 workpieces, use an extension rod and a ratchet wrench to turn the worm 6 to drive the worm gear 4, and drive the screw 9 withstand the press-fit sleeve 13 and press-fit the 14 workpiece into place. the

Features of this utility model:

1. Modular design is adopted, which is easy to operate, labor-saving and practical. the

2. With the characteristics of power vertical steering and large transmission ratio, the disassembly operation of bearings, sprockets, pulleys and other parts in the box and pipeline can be extended to the outside of the inspection door, so that the disassembly operation of parts can be saved. Save time and effort. the

3. In the process of dismantling parts, avoid the problems that ordinary pullers are easy to cause damage to the outer ring of the bearing with seat and difficult to pull the inner ring of the bearing. the

4. When installing parts, avoid using the knocking method to cause damage to high-precision parts such as bearings. the

5. The utility model has good versatility, and is easy to process and manufacture, and is very popular, such as: bearings, sprockets, pulleys and other types of parts can be disassembled and used. the

Claims (10)

1. bent-arm attaching/detaching apparatus; Comprise screw mandrel positioner (1), carrier bar (2), transmission device (3), screw mandrel (9), pull bar (10), anchor ear (11); (10 connect and compose frame to described carrier bar (2) with pull bar; Screw mandrel positioner (1) is set on the described carrier bar (2), and the leading screw (9) in the screw mandrel positioner (1) cooperates with transmission device (3) transmission; Described pull bar (10) lower end cooperates with anchor ear (11).

2. bent-arm attaching/detaching apparatus according to claim 1; It is characterized in that: (3 are worm gearing to described transmission device; Comprise worm gear (4), worm screw (6) and casing (8), worm screw (6) is connected with driving mechanism, and described worm gear (4) and leading screw (9) are movingly.

3. bent-arm attaching/detaching apparatus according to claim 1 is characterized in that: on the described screw mandrel positioner (1) the mounting hole groove is set.

4. bent-arm attaching/detaching apparatus according to claim 2 is characterized in that: described worm gear (4) two ends are provided with thrust ball bearing (5).

5. bent-arm attaching/detaching apparatus according to claim 2 is characterized in that: described worm screw (6) two ends are provided with cylindrical roller thrust bearing (7).

6. bent-arm attaching/detaching apparatus according to claim 2 is characterized in that: bottom end cover (15) and side end cap (16) are set respectively on the described casing (8).

7. bent-arm attaching/detaching apparatus according to claim 1 is characterized in that: described anchor ear (11) is a split-type structural.

8. according to claim 1 or 7 described bent-arm attaching/detaching apparatus, it is characterized in that: locating piece (12) is set on the described anchor ear (11).

9. bent-arm attaching/detaching apparatus according to claim 8 is characterized in that: described locating piece (12) is for detachable.

10. bent-arm attaching/detaching apparatus according to claim 1 is characterized in that: described leading screw (9) lower end is provided with and press-fits cover (13), describedly press-fits cover (13) and works with anchor ear (11) and cooperate.

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