CN201027847Y

CN201027847Y - Large-torque moment limiter

Info

Publication number: CN201027847Y
Application number: CNU2007201039644U
Authority: CN
Inventors: 杨建国; 姚军战; 封顺利
Original assignee: Juli Sling Co Ltd
Current assignee: Juli Sling Co Ltd
Priority date: 2007-03-26
Filing date: 2007-03-26
Publication date: 2008-02-27
Anticipated expiration: 2017-03-26

Abstract

The utility model relates to a big torque load moment limiter, comprising a shaft housing, a main toothed chain wheel, an upper friction plate, a lower friction plate, a sleeve, a throw-out collar, a chuck ring, a limit ring and a saucer washer, wherein, the upper end and the lower end of the main toothed chain wheel is respectively provided with the upper friction plate and the lower friction plate; the inner side of the main toothed chain wheel is provided with the sleeve; the main toothed chain wheel, the upper friction plate, the lower friction plate and the sleeve are fixed covered on the outer annulus of the shaft housing; the lower end of the lower friction plate is in turn provided with the throw-out collar, the chuck ring and the limit ring from the top down, and the throw-out collar, the chuck ring and the limit ring are all fixedly covered on the outer annulus of the shaft housing; the saucer washer is arranged between the throw-out collar and the chuck ring; the lower end of the limit ring is provided with at least two bolts; one end of the bolt passes through the limit ring to prop up the throw-out collar, when load is beyond the maximal bearing capacity designed by the main toothed chain wheel, and the pressure the lower friction plate transmits to the main toothed chain wheel is not enough to drive the rotation of the main toothed chain wheel; therefore, the main toothed chain wheel skids and can not transmit power, a retarder device and the whole apparatus are protected from being damaged.

Description

Big torque limiter of moment

Technical field

The utility model has related to a kind of limiter of moment, has particularly related to a kind of big torque limiter of moment.

Background technique

Existing big torque limiter of moment uses the mode of single sleeve-barrel roollr chain-driven usually; the torque transmitted scope is less; in order to transmit bigger torque; satisfy the needs of large-tonnage suspender transmitting torque; this suspender is two pincers legs that weigh more than 12 tons that driven by retarder; just must when solving transmitting torque, solve the problem of suspender overload protection.

Summary of the invention

Goal of the invention of the present utility model is the problem that solves the overload protection of large-tonnage suspender, and a kind of big torque limiter of moment is provided

In order to finish goal of the invention of the present utility model, a kind of big torque limiter of moment of the present utility model comprises: axle sleeve and main tooth sprocket, wherein: it also comprises: upper friction plate, following friction plate, sleeve, throw-out collar, pressure ring, baffle ring and belleville spring, main tooth sprocket top and bottom are equipped with upper friction plate and following friction plate respectively, sleeve is equipped with in main tooth sprocket inboard, above-mentioned main tooth sprocket, upper friction plate, following friction plate and sleeve securely are sleeved on the excircle of axle sleeve, the lower end of following friction plate is equipped with pressure ring from top to bottom successively, throw-out collar and baffle ring, they all securely are sleeved on the excircle of axle sleeve, belleville spring is contained between pressure ring and the throw-out collar, its lower end is contained in the boss outside of baffle ring, the excircle of pressure ring lower end is withstood in the upper end, two bolts are housed on the circumference of baffle ring lower end at least, and an end of this bolt passes baffle ring and withstands throw-out collar;

A kind of big torque limiter of moment of the present utility model, wherein: the lower end of described baffle ring is welded with or is stained with at least two nuts, and screw bolt passes nut and baffle ring withstand throw-out collar;

A kind of big torque limiter of moment of the present utility model, wherein: 4 or 6 screw bolt and nut are housed on the described baffle ring circumference;

A kind of big torque limiter of moment of the present utility model, wherein: described main tooth sprocket is a duplex chain wheel;

A kind of big torque limiter of moment of the present utility model, wherein: described sleeve is a copper sheathing;

A kind of big torque limiter of moment of the present utility model, wherein: described upper friction plate and following friction plate are asbestos friction sheets.

Big torque limiter of moment of the present utility model is compared with moment transmitting device; when the load of being born when large-tonnage suspender driving mechanism surpasses the maximum bearing capacity of its design; following friction plate passes to the underpressure of main tooth sprocket and rotates to drive main tooth sprocket; therefore main tooth sprocket skids; can not transferring power; protected reducer arrangement and integral device thereof, this self-protection mechanism has more its superiority for external force.

Description of drawings

Fig. 1 is the forward generalized section that big torque limiter of moment of the present utility model amplifies;

Fig. 2 is the forward generalized section of the position relation of big torque limiter of moment of the present utility model in the rotating mechanism of large-tonnage suspender;

Fig. 3 is bowing to generalized section of Fig. 2, has deleted the part of sprocket wheel tension device for simplicity.

Embodiment

Fig. 1 is the schematic representation of the big torque limiter of moment of the utility model forward, as shown in Figure 1, big torque limiter of moment of the present utility model comprises: axle sleeve 2, main tooth sprocket 1, upper friction plate 5, following friction plate 18, sleeve 6, throw-out collar 7, pressure ring 15, baffle ring 8 and belleville spring 14, main tooth sprocket 1 is a duplex chain wheel, its top and bottom are equipped with upper friction plate 5 and following friction plate 18 respectively, sleeve 6 is equipped with in main tooth sprocket 1 inboard, above-mentioned main tooth sprocket 1, upper friction plate 5, following friction plate 18 and sleeve 6 securely are sleeved on the excircle of axle sleeve 2, sleeve 6 is copper sheathings, and upper friction plate 5 and following friction plate 18 are asbestos friction sheets.The lower end of following friction plate 18 is equipped with pressure ring 15, throw-out collar 7 and baffle ring 8 from top to bottom successively, they all securely are sleeved on the excircle of axle sleeve 2, belleville spring 14 is contained between pressure ring 15 and the throw-out collar 7, its lower end is contained on the boss 19 of baffle ring 8, the excircle of pressure ring 15 lower ends is withstood in the upper end, the lower end of baffle ring 8 is welded with or is stained with that 10, four bolts 9 of four nuts pass four nuts 10 successively and baffle ring 8 withstands throw-out collar 7.

One end of axle sleeve 2 inside links to each other with main shaft 4 by key 3, and the other end of axle sleeve 2 is equipped with end cap 12, has screw hole on the end cap 12, and screw 11 passes end cap 12, and end cap 12 is fastened on the main shaft 4.

Fig. 2 and Fig. 3 are the forwards of the position relation of the big torque limiter of moment of the utility model in the rotating mechanism of large-tonnage suspender and bow to generalized section, as can be seen from the figure, main shaft 1 is given axle sleeve 2 with transmission of torque, upper friction plate 5, following friction plate 18, sleeve 6, pressure ring 15, baffle ring 8 and throw-out collar 7, main tooth sprocket 1 is at pressure ring 15, baffle ring 8, belleville spring 14, under the pressurization of throw-out collar 7 and bolt 9, main tooth sprocket 1 and upper friction plate 5, following friction plate 18 and sleeve 6 are combined into one along with main shaft 4 rotations, main tooth sprocket 1 drives from tooth sprocket 17 by double-stranded bar 16 and rotates, in order to prevent the lax of chain 16, sprocket wheel tension device 13 is housed in the centre of chain.

Working principle:

When needing main tooth sprocket 1 torque transmitted in main tooth sprocket 1 carrying scope from tooth sprocket 17; main tooth sprocket 1 is at pressure ring 15; baffle ring 8; belleville spring 14; under the pressurization of throw-out collar 7 and bolt 9; main tooth sprocket 1 and upper friction plate 5; following friction plate 18 and sleeve 6 are combined into one along with main axis rotation; when needing main tooth sprocket 1 torque transmitted to surpass in the main tooth sprocket carrying scope from tooth sprocket 17; pressure ring 15; baffle ring 8; belleville spring 14; the underpressure of friction plate 18 was to overcome the torque that needs from tooth sprocket 17 under throw-out collar 7 and bolt 9 were given; main tooth sprocket 1 is at upper friction plate 5; skid in following friction plate 18 and the sleeve 6; can not transferring power, protected reducer arrangement and integral device thereof.

More than describing is to explanation of the present utility model, it or not qualification to model utility, though the utility model is drawn from being used for large-tonnage suspender transmitting torque, but it also is applicable to a cutting device that transmits little torque, the utility model institute restricted portion is referring to claim, under the situation of spirit of the present utility model, the utility model can be done any type of modification.

Claims

1. one kind big torque limiter of moment, it comprises: axle sleeve (2) and main tooth sprocket (1), it is characterized in that: it also comprises: upper friction plate (5), following friction plate (18), sleeve (6), throw-out collar (7), pressure ring (15), baffle ring (8) and belleville spring (14), wherein: main tooth sprocket (1) top and bottom are equipped with upper friction plate (5) and following friction plate (18) respectively, sleeve (6) is equipped with in main tooth sprocket (1) inboard, above-mentioned main tooth sprocket (1), upper friction plate (5), following friction plate (18) and sleeve (6) securely are sleeved on the excircle of axle sleeve (2), the lower end of following friction plate (18) is equipped with pressure ring (15) from top to bottom successively, throw-out collar (7) and baffle ring (8), they all securely are sleeved on the excircle of axle sleeve (2), belleville spring (14) is contained between pressure ring (15) and the throw-out collar (7), its lower end is contained in boss (19) outside of baffle ring (8), the excircle of pressure ring (15) lower end is withstood in the upper end, on the circumference of baffle ring (8) lower end two bolts (9) are housed at least, an end of this bolt (9) passes baffle ring (8) and withstands throw-out collar (7).

2. big according to claim 1 torque limiter of moment is characterized in that: the lower end of described baffle ring (8) is welded with or is stained with at least two nuts (10), and bolt (9) passes nut (10) successively and baffle ring (8) withstands throw-out collar (7).

3. big as claimed in claim 1 or 2 torque limiter of moment is characterized in that: 4 or 6 bolts (9) and nut (10) are housed on described baffle ring (8) circumference.

4. as big torque limiter of moment as described in the claim 3, it is characterized in that: described main tooth sprocket (1) is a duplex chain wheel.

5. as big torque limiter of moment as described in the claim 4, it is characterized in that: described sleeve (6) is a copper sheathing.

6. as big torque limiter of moment as described in the claim 5, it is characterized in that: described upper friction plate (5) and following friction plate (18) are asbestos friction sheets.