CN201103628Y - Gear coupling anti-gearing device - Google Patents

Abstract

The utility model discloses a tooth-like shaft coupling anticreep tooth device that uses on steel rolling equipment has the effectual characteristics of anticreep tooth, has solved among the prior art behind the shaft coupling safety pin fracture, and the technical problem of two halves shaft coupling ring gear emergence mousing. The driving end and the driven end of a coupler of the device are respectively provided with a flange which is matched with each other, and a backstop piece is arranged on the flange of the coupler. When the torque exceeds the safe transmission torque of the motor or the equipment such as the gear box, the speed reducer and the like, the safety pin is broken, and after the safety pin is broken, due to the limiting effect of the retaining piece, the flange separation of the two half couplers is prevented from being overlarge, so that the gear disengagement of the inner gear ring is effectively prevented, and the longer halt processing time is avoided. The anti-disengaging device of the large-scale gear coupling has good stopping effect; the volume is small, the weight is light, and the replacement is easy and convenient; the retaining plate is made of A3 steel which is softer than the material of the coupler, so that the coupler cannot be damaged.

Description

Gear coupling anti-gearing device

technical field

The utility model relates to a device used on mechanical equipment, in particular to a tooth-type shaft coupling anti-gearing device used on steel rolling equipment.

Background technique

In steel rolling production, in order to prevent abnormal transmission torque during the rolling process, damage to mechanical and electrical equipment. Usually, gear safety pin couplings are used to connect the output end of the motor with the input end of the gearbox or reducer. When the torque exceeds the safe transmission torque of the motor, gearbox, reducer and other equipment, the safety pin breaks, and the motor is separated from the mechanical transmission part, thereby protecting the safety of related equipment. But when the safety pin is broken, due to the inertia, the half-couplings at both ends will keep running separately in a short time.

At present, due to the inner ring gear of the gear-type safety pin coupling, there is no other device for fixing in the axial de-gearing direction except that it is connected and fixed by the safety pin under normal circumstances. Therefore, when the safety pin breaks, the inner ring gears of the two halves of the coupling will lose their teeth. Due to the large gear couplings used in general steel rolling, when the internal and external teeth of the couplings are detached, it will bring great difficulties to the recovery and seriously affect the production.

Utility model content

The technical problem to be solved by the utility model is to provide a tooth-type shaft coupling anti-loosening device with good anti-loosening effect.

In order to solve the above-mentioned problems, the utility model adopts the following technical scheme, the tooth-type coupling anti-gearing device includes a coupling, and the driving end and the driven end of the coupling are respectively provided with matching flanges. In that: a backstop is arranged on the flange of the shaft coupling.

The backstop includes a fixed end, a connecting section and a backstop end, the fixed end and the backstop end are respectively connected to two ends of the connection section to form a concave structure, and the concave structure is matched with the circumferential surface and the two end surfaces of the flange respectively.

The fixed end of the backstop is fixed on one end of the coupling flange.

Further, there is a gap between the backstopping end of the backstopping member and the end surface of the flange.

Further, there is a gap between the connecting section of the backstop and the peripheral surface of the flange.

The backstop is a weldment.

The material of the backstop is A3 steel.

With the above scheme, when the torque exceeds the safe transmission torque of the motor, gearbox, reducer and other equipment, the safety pin breaks to protect the related equipment. After the safety pin is broken, due to inertia, the half-couplings at both ends will Keep running separately in a short period of time, due to the limit function of the stopper, the flanges of the two half couplings are prevented from being separated too much, thereby effectively preventing the toothing of the inner ring gear and avoiding longer shutdown processing time. This kind of large gear coupling has a good anti-retraction effect; it is small in size, light in weight, easy and convenient to replace; since the anti-retraction plate is made of A3 steel which is softer than the material of the coupling, it is not necessary Will damage the coupling.

Description of drawings

Figure 1 is a schematic diagram of the installation of the gear coupling preventing device of the present invention.

Figure 2 is the front view of the return item.

Parts, part names and corresponding marks in the figure: coupling (6), flange (8, 9), backstop (2), fixed end (3), backstop (5), connecting section (4), driving end (6) and driven end (7).

Detailed ways

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

As shown in Fig. 1 and Fig. 2, the anti-off gear device of the gear coupling includes a coupling, and the driving end 6 and the driven end 7 of the coupling are respectively provided with matching flanges 8 and 9. Backstops 2 are provided on the flanges 8 and 9 of the hub 6 . When the torque exceeds the safe transmission torque of the motor, gearbox, reducer and other equipment, the safety pin breaks, and after the safety pin breaks, due to inertia, the driving end 6 and the driven end 7 of the coupling will break in a short time To keep running separately, due to the limit function of the stopper 2, the flanges 8, 9 of the driving end 6 and the driven end 7 of the coupling are prevented from being separated too much, thereby effectively preventing the toothing of the inner ring gear.

The backstop 2 includes a fixed end 3, a connecting section 4 and a backstop 5. The fixed end 3 and the backstop 5 are respectively connected to the two ends of the connecting section 4 to form a concave structure. The concave structure is connected to the flanges 8 and 9 respectively The circumferential surface matches the two end surfaces. This concave structure can just limit the flange 1 of the shaft coupling 6 .

The fixed end 3 of the stop member 2 is fixed on one end of the flanges 8 and 9 of the shaft coupling 6 . The fixed end 3 of the backstop 2 can be fixed on the flange of the driving end 6 of the shaft coupling, and can also be fixed on the flange of the driven end 7 .

There is a gap between the backstop end 5 of the backstop 2 and the end surface of the flange; there is a gap between the connecting section 4 of the backstop 2 and the circumferential surfaces of the flanges 8 and 9 . The function of this gap is that when the safety pin is reinstalled after the safety pin is broken, the flange on the side of the stop end 5 of the coupling can be rotated conveniently, and the positional relationship between the flanges 8 and 9 can be adjusted to facilitate the installation. safety pin.

The fixing plate 3, the connecting section 4 and the backstopping end 5 of the backstopping member 2 are fixed by welding. Since the precision requirement of this backstop 2 is not high, if the positive block material is used for processing to form an integral part, the waste of material is relatively large. If the fixed plate 3, the connecting section 4 and the backstop 5 are processed separately , and then welded and formed, which can effectively save materials.

The material of the backstop 2 is A3 steel. This kind of material is relatively cheap and can effectively save costs. Since the backstop 2 is made of A3 steel which is softer than the material of the coupling 6, when the equipment fails, the backstop 2 will be destroyed first without damaging the coupling. Shaft device 6.

Claims (7)

1. gear coupling anticreep tooth device comprises coupling, and drive end of coupling (6) and driven end (7) are respectively arranged with the flange (8,9) that matches, and it is characterized in that: the flange of coupling (6) (8,9) is provided with retaining spare (2).

2. gear coupling anticreep tooth device as claimed in claim 1, it is characterized in that: retaining spare (2) comprises fixed end (3), linkage section (4) and retaining end (5), fixed end (3) is connected with the two ends of linkage section (4) respectively with retaining end (5), form concave structure, concave structure matches with the circumferential surface and the both ends of the surface of flange (8,9) respectively.

3. gear coupling anticreep tooth device as claimed in claim 2 is characterized in that: the fixed end (3) of retaining spare (2) is fixed on an end of coupling (6) flange (8,9).

4. gear coupling anticreep tooth device as claimed in claim 3 is characterized in that: the retaining end (5) of retaining spare (2) leaves the gap with the end face of flange (8,9).

5. gear coupling anticreep tooth device as claimed in claim 3 is characterized in that: the linkage section (4) of retaining spare (2) leaves the gap with the circumferential surface of flange (8,9).

6. as the described gear coupling anticreep of each claim of claim 1～5 tooth device, it is characterized in that: described retaining spare (2) is a weldment.

7. as the described gear coupling anticreep of each claim of claim 1～5 tooth device, it is characterized in that: the material of retaining spare (2) is the A3 steel.

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