CN203308967U

CN203308967U - Ratchet wheel backstop

Info

Publication number: CN203308967U
Application number: CN2013202357692U
Authority: CN
Inventors: 陶建波
Original assignee: Shengzhou Jing Da Electric Machine Co Ltd
Current assignee: Shengzhou Jing Da Electric Machine Co Ltd
Priority date: 2013-05-03
Filing date: 2013-05-03
Publication date: 2013-11-27
Anticipated expiration: 2023-05-03

Abstract

The utility model discloses a ratchet wheel backstop which comprises a first electromagnet, a second electromagnet, a pawl, a reverse pawl, a ratchet wheel and a base. The first electromagnet is fixedly arranged inside a first mounting base at the upper end of the base, and a movable first iron block is further arranged inside the first mounting base. The lower end of the first iron block is connected with one end of a first movable piece through a second hinge pin, the other end of the first movable piece is connected with the middle end of the pawl through a third hinge pin, and the bottom end of the pawl is movably connected with the base through a first hinge pin. The ratchet wheel comprises a primary ratchet wheel and a secondary ratchet wheel, the primary ratchet wheel is provided with forward teeth which are matched with the pawl, and the secondary ratchet wheel is provided with reverse teeth which are matched with the reverse pawl. The bottom end of the reverse pawl is movably connected with the base through a fourth hinge pin. The second electromagnet is fixedly arranged inside a second mounting base at the lower end of the base, a movable second iron block is arranged inside the second mounting base, and the second iron block is movably connected with the middle end of the reverse pawl through a second movably piece. The ratchet wheel backstop has the advantage that the bidirectional backstop function can be achieved.

Description

The ratchet non-return device

Technical field

The utility model relates to non-return device, relates in particular to a kind of ratchet non-return device.

Background technique

Body at all kinds of speed reducer drive roller high speed input ends or high speed shaft tail end, on the casing end face, generally all need to be equipped with non-return device, guarantee to shut down or equipment and people's life safety while meeting unexpected power outage, common non-return device has the belt non-return device, roller type brake, carve piece formula check bearing, click non-return device with the tension and compression spring, in long period of time, really their due effects have been played aborning, not enough is, and that these check settings all exist noise to some extent is large, wear block, temperature is high, life-span is short, keep in repair problem frequently, and in the click non-return device that tradition is used, generally all can only guarantee the check of single direction, and can't accomplish two-way check in the situation that protection touches.

The model utility content

The technical problems to be solved in the utility model be to provide a kind of can two-way check, and noiseless, wearing and tearing are little, the ratchet non-return device of easy accessibility.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of ratchet non-return device, comprise the first electromagnet, the second electromagnet, ratchet, anti-ratchet, ratchet and pedestal, described the first electromagnet is fixedly installed in the first fitting seat of pedestal upper end, in described the first fitting seat, also be provided with the first iron block of an activity, the first iron block lower end is connected with the first movable plate one end by the second bearing pin, the described first movable plate the other end connects the ratchet middle-end by the 3rd bearing pin, described ratchet bottom is flexibly connected by the first bearing pin and pedestal, described ratchet comprises main ratchet and from ratchet, on main ratchet, be provided with the forward tooth be complementary with ratchet, the described reverse tooth be complementary with anti-ratchet that is provided with from ratchet, described anti-ratchet bottom is flexibly connected by the 4th bearing pin and pedestal, described the second electromagnet is fixedly installed in the second fitting seat of pedestal lower end, in described the second fitting seat, be provided with the second movable iron block, described the second iron block is flexibly connected by the second movable plate and anti-ratchet middle-end, described anti-ratchet middle-end is connected with pedestal by spring.

After the utility model adopts said structure, because ratchet, anti-ratchet in operation can not contact with ratchet, therefore have wear and tear little, do not generate heat, muting advantage, and check is effective, easy to assemble, can realize two-way check.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Schematic diagram when Fig. 2 is the utility model energising;

Fig. 3 is the structural representation of ratchet;

Fig. 4 is the sectional view of ratchet;

Fig. 5 is that the A of Fig. 1 is to view.

Marginal data: 1, the first electromagnet; 2, pedestal; 3, ratchet; 4, the first bearing pin; 5, ratchet; 51, main ratchet; 52, from ratchet; 53, tooth forward; 54, reverse tooth; 6, the first iron block; 7, the second bearing pin; 8, the first movable plate; 9, the first fitting seat; 10, the second electromagnet; 11, the 3rd bearing pin; 12, the second fitting seat; 13, the second iron block; 14, the 4th bearing pin; 15, the second movable plate; 16, anti-ratchet; 18, spring.

Embodiment

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

As shown in Figures 1 to 5, the ratchet non-return device of the present embodiment, comprise the first electromagnet 1, the second electromagnet 10, ratchet 3, anti-ratchet 16, ratchet 5 and pedestal 2, the first electromagnet 1 is fixedly installed in the first fitting seat 9 of pedestal 2 upper ends, in the first fitting seat 9, also be provided with the first iron block 6 of an activity, the first iron block 6 lower ends are connected with the first movable plate 8 one ends by the second bearing pin 7, first movable plate 8 the other ends connect ratchet 3 middle-ends by the 3rd bearing pin 11, ratchet 3 bottoms are flexibly connected by the first bearing pin 4 and pedestal 2, ratchet 5 comprises main ratchet 51 and from ratchet 52, on main ratchet 51, be provided with the forward tooth 53 be complementary with ratchet 3, from ratchet 52, be provided with the reverse tooth 54 be complementary with anti-ratchet 16, anti-ratchet 16 bottoms are flexibly connected by the 4th bearing pin 14 and pedestal 2, the second electromagnet 10 is fixedly installed in the second fitting seat 12 of pedestal 2 lower ends, the second fitting seat 12 in be provided with the second movable iron block 13, the second iron block 13 is flexibly connected by the second movable plate 15 and anti-ratchet 16 middle-ends, anti-ratchet 16 middle-ends are connected with pedestal 2 by spring 18.

The utility model is when work, power connection, after the first electromagnet 1 and the second electromagnet 10 energisings, produce magnetic force, the first iron block 6 is attracted on the first electromagnet 1, the second iron block 13 is attracted on the second electromagnet 10, now, the first iron block 6 is by the first movable plate 8 pull-up ratchets 3, ratchet 3 separates with ratchet 5, the second iron block 13 is by the anti-ratchet 16 of the second movable plate 15 pull-up, when equipment failure, power supply is cut off, now, the first electromagnet 1 and the second electromagnet 10 lose magnetic force, the first iron block 6 falls, the second iron block 10 is upspring under the pulling force of spring 18, now, ratchet 3 withstands the forward tooth 53 on main ratchet 51, and withstood by anti-ratchet 16 from the reverse tooth 54 on ratchet 52, realize two-way check.

Claims

1. ratchet non-return device, comprise the first electromagnet (1), the second electromagnet (10), ratchet (3), anti-ratchet (16), ratchet (5) and pedestal (2), it is characterized in that: described the first electromagnet (1) is fixedly installed in first fitting seat (9) of pedestal (2) upper end, in described the first fitting seat (9), also be provided with first iron block (6) of an activity, the first iron block (6) lower end is connected with the first movable plate (8) one ends by the second bearing pin (7), described the first movable plate (8) the other end connects ratchet (3) middle-end by the 3rd bearing pin (11), described ratchet (3) bottom is flexibly connected by the first bearing pin (4) and pedestal (2), described ratchet (5) comprises main ratchet (51) and from ratchet (52), on main ratchet (51), be provided with the forward tooth (53) be complementary with ratchet (3), the described reverse tooth (54) be complementary with anti-ratchet (16) that is provided with from ratchet (52), described anti-ratchet (16) bottom is flexibly connected by the 4th bearing pin (14) and pedestal (2), described the second electromagnet (10) is fixedly installed in second fitting seat (12) of pedestal (2) lower end, in described the second fitting seat (12), be provided with movable the second iron block (13), described the second iron block (13) is flexibly connected by the second movable plate (15) and anti-ratchet (16) middle-end, described anti-ratchet (16) middle-end is connected with pedestal (2) by spring (18).