CN216519319U - Brake with safety protection device - Google Patents

Abstract

The application relates to a brake with a safety protection device, belonging to the field of brakes, comprising a brake seat, an annular cylinder and an annular piston; a plurality of pin shafts are uniformly arranged along the circumferential direction of the pressure plate at intervals, one end of each pin shaft penetrates through the pressure plate and is connected with the brake seat, the other end of each pin shaft is screwed with a first nut, a spring is sleeved on the pin shaft between the pressure plate and the first nut, a plurality of adjusting screws are arranged at intervals along the circumferential direction of the pressure plate, and one end of each adjusting screw penetrates through the pressure plate and abuts against the annular piston; the protection plates are used for connecting the pin shafts to form a plurality of connection groups, each connection group comprises one protection plate and at least two pin shafts simultaneously connected with the protection plates, and the protection plates and the springs are respectively positioned on two sides of the first nut; through setting up the guard plate and connecting the guard plate between at least two round pin axles even a plurality of round pin axles, when one of them round pin axle breaks, the mutual stumbling effect of guard plate for the nut of round pin axle fracture part and connection can not the departure, plays safety protection's effect.

Description

Brake with safety protection device

Technical Field

The utility model relates to the field of brakes, in particular to a brake with a safety protection device.

Background

At present, a press machine on the market generally adopts a friction block type brake, and the brake controls the on-off action of the brake through the cooperation of air pressure and a spring so as to realize the connection and the action of the whole transmission system. It is known that, during pressure operation, a braking action occurs in each working cycle, and a pin shaft penetrating through a pressure plate and arranged on a brake seat experiences a corresponding impact load, which includes a long-term tension force of a spring on the pin shaft when the brake is braked and a pressing force of the pressure plate on the pin shaft when the brake is not braked. Under above-mentioned dual effort, long-time accumulation repeatedly or occasional overload operation can make round pin axle fatigue strength reduce, leads to the round pin axle fracture, in case the round pin axle fracture, the nut of twisting on the round pin axle can fly out under the dual function of braking impact force and spring tension, takes place the incident. Although the accident probability of the brake of the press during working is low, enterprises must do not make the accident and strictly execute safe and careless quality management procedures.

SUMMERY OF THE UTILITY MODEL

This application is in order to solve round pin axle on the stopper of current press under the dual effort that receives braking impact force and spring tension force, long-time accumulation repeatedly and occasional overload are transported, can cause the cracked problem of round pin axle, in case the fracture, the nut of round pin axle one end can fly out under the effort, takes place the incident, this application design one kind has safety device's stopper, and the technical scheme of its concrete adoption is:

a brake with safety guard comprising:

the brake device comprises a brake seat, a brake device and a brake device, wherein the brake seat is provided with an annular cylinder, and an annular piston is arranged in the annular cylinder in a sliding manner;

a platen;

the brake device comprises a pressure plate, a plurality of pin shafts, a plurality of spring, a plurality of adjusting screws and a plurality of brake pads, wherein the pin shafts are uniformly arranged along the circumferential direction of the pressure plate at intervals;

a plurality of guard plates, a plurality of guard plates are with a plurality of round pin hub connection and form a plurality of connection group, and each connection group includes a guard plate and two at least round pin axles of being connected simultaneously with the guard plate, and guard plate and spring are located the both sides of first nut respectively.

Preferably, the protection plate is provided with at least two connecting holes, each connecting hole penetrates through each pin shaft, a second nut is screwed on each pin shaft, and the protection plate is located between the second nut and the first nut.

Preferably, the guard plate is straight, and two connecting holes correspond and set up in the position that the guard plate is close to its both ends, and two adjacent round pin axles are connected to the guard plate.

Preferably, the guard plate is the V-arrangement, and the connecting hole sets up threely, and wherein two connecting holes set up in the position that the guard plate is close to its both ends, and another connecting hole sets up in the middle corner of guard plate, and three adjacent round pin axle is connected to the guard plate.

Preferably, the guard plate has a plurality of pinion racks, and a plurality of pinion racks link together in respective one end, and the other end is sprocket form to scattering all around, and the number of pinion rack is the same with the number of round pin axle, and the connecting hole sets up a plurality ofly, and a plurality of connecting holes correspond and set up in a plurality of pinion racks and keep away from the one end of link.

Preferably, the protection plate is a high manganese steel plate.

According to the utility model, the protection plate is arranged and connected between at least two pin shafts or even a plurality of pin shafts, when one pin shaft is broken, the protection plate has the function of mutual stumbling, so that the broken part of the pin shaft and the connected nut cannot fly out, and the safety protection effect is achieved; however, even under extreme conditions, a plurality of round pin axles fracture simultaneously, also can be because of the effect of stumbling each other of ejection force inequality and guard plate for launch powerless, fall in the small scale, also reduced the damage degree that the incident caused to a certain extent.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the protective plate in a V-shape;

FIG. 4 is a schematic chain-like structure of the guard plate;

fig. 5 is a schematic structural diagram of the brake adopting various shape matching connections.

In the figure, the brake device comprises a brake seat 1, a brake seat 2, an annular piston 3, a pressure plate 4, an adjusting screw 5, a friction block 6, a pin shaft 7, a spring 8 and a protection plate.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1-2, the present application is a brake with a safety device, which includes a brake base 1, a pressure plate 3, a plurality of pins 6 and a plurality of protection plates 8. The brake device comprises a brake seat 1 and a brake pad, wherein the brake seat 1 is provided with an annular cylinder, an annular piston 2 is arranged in the annular cylinder in a sliding mode, a plurality of adjusting screws 4 are arranged on a pressure plate 3 at intervals in the circumferential direction, one end of each adjusting screw 4 penetrates through the pressure plate 3 to be abutted to the annular piston 2, the adjusting screws are used for adjusting the stroke of the annular piston 2 and adjusting and controlling the gap between friction surfaces of the brake seat 1 and the pressure plate 3, and the brake seat 1 is also provided with a vent hole which is connected with a cavity at the left end of the annular cylinder. During normal braking, no gas is filled in the vent hole, the pressure plate 3 presses the brake seat 1 under the pressure of the spring 7 of the pin shaft 6, the brake seat 1 and the pressure plate 3 compress the friction plate arranged in the brake seat 1, and the brake brakes. On the contrary, the air is inflated into the vent hole through the externally connected inflating device, the air enters the cavity at the left end of the annular cylinder, the annular cylinder is pushed rightwards by the acting force of the air, the annular cylinder drives the pressure plate 3 to move rightwards under the action of the adjusting screw 4, the pressure plate 3 is separated from the friction block 5 on the brake seat 1 at the moment, and then the brake is in a non-braking state.

Besides being connected with the annular cylinder, the pressure plate 3 is also provided with a plurality of pin shafts 6 on the brake base 1, the pin shafts 6 are uniformly arranged at intervals along the circumference of the brake base 1, specifically, the left end of each pin shaft 6 is fixed on the brake base 1, the right end of each pin shaft 6 penetrates through the thread of the pressure plate 3, and a nut is screwed on the screw thread, so that when the pressure plate 3 moves along with the annular cylinder, the pressure plate 3 slides relative to the pin shafts 6, meanwhile, the spring 7 is also sleeved on the periphery of the pin shaft 6 between the nut and the pressure plate 3, and when the brake is applied, the spring 7 is in a compression state and has a certain pre-tightening force.

The plurality of protection plates 8 connect the plurality of pin shafts 6 to form a plurality of connection groups, each connection group comprises one protection plate 8 and at least two pin shafts 6 simultaneously connected with the protection plate 8, in the embodiment, one protection plate 8 is connected between two adjacent pin shafts 6, each protection plate 8 and the spring 7 are respectively positioned at two sides of the first nut, the protection plate 8 is provided with a plurality of pin shafts 6 on the brake seat 1 which are all divided into a plurality of groups to be connected, wherein the protection plates 8 are different in shape and the number of the pin shafts 6 simultaneously connected is also different, on one brake, the protection plate 8 can be simultaneously connected with two pin shafts 6 and also simultaneously connected with three, four, five and the like pin shafts 6, the two connection forms can be mutually matched for use, the number of the protection plates 8 is determined according to the number of the pin shafts 6 as required, and the number of the pin shafts 6 is set, but at a minimum, not less than two. Set up the guard plate 8 back, when taking place the 6 circumstances of splitting of singleton round pin axle, can be because the existence of guard plate 8 stumbles each other, be unlikely to take place 6 cracked parts of round pin axle and coupling nut departure, even when taking place the 6 simultaneous fracture of round pin axle of the same group under extreme condition, also can fall in the minizone because the uneven direction of ejection force is different, reduce safety damage's degree.

Further, to how guard plate 8 is connected with round pin axle 6, it is concrete, set up two connecting holes at least on guard plate 8, every connecting hole corresponds and passes every round pin axle 6, every round pin axle 6 top spin has twisted the second nut, guard plate 8 is located between second nut and the first nut, guard plate 8 can dismantle the connection on round pin axle 6, can be convenient for change guard plate 8, in case one of them round pin axle 6 fracture leads to guard plate 8 to produce when serious plastic deformation needs to be changed, this kind of connected mode can be convenient more smooth.

In one embodiment, as shown in fig. 2, the protection plate 8 is a straight plate, two connection holes are provided, two connection holes are correspondingly provided at positions of the protection plate 8 near two ends of the protection plate, the protection plate 8 is connected with two adjacent pins 6, and the number of the protection plate 8 is 1/2 of the number of the pins 6.

In one embodiment, as shown in fig. 3, the protection plate 8 is V-shaped, and three connection holes are provided, two of the connection holes are provided near two ends of the protection plate 8, another connection hole is provided at a middle corner of the protection plate 8, the protection plate 8 is connected to three adjacent pins 6, and the number of the protection plate 8 is 1/3 of the number of the pins 6.

In one embodiment, as shown in fig. 4, the protection plate 8 has a plurality of toothed plates, the toothed plates are connected together at respective one ends, the other ends are scattered to the periphery to form a chain wheel, the number of the toothed plates is the same as that of the pin shafts 6, the connecting holes are arranged in a plurality of numbers, the number of the connecting holes is the same as that of the toothed plates, and the connecting holes are correspondingly arranged at one ends of the toothed plates far away from the connecting ends.

It should be noted that, on one brake, the V-shaped protection plate 8 and the straight plate can be used together, or the V-shaped protection plate 8 and the support plate can be used together, as shown in fig. 5, specifically, several of them are respectively provided, and the brake can be specifically configured according to the number of the pin shafts 6.

Furthermore, the protection plate 8 is a high manganese steel plate, the high manganese steel plate is good in toughness and high in wear resistance, and is suitable for being used at the position, the high manganese steel plate is good in toughness and can absorb more energy when the pin shaft 6 is broken, the broken part of the pin shaft 6 and the flying-out range of the nut can be further reduced, and the degree of safety damage is reduced.

The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.

Claims (6)

1. A brake with safety device, comprising:

the brake device comprises a brake seat, a brake device and a brake device, wherein the brake seat is provided with an annular cylinder, and an annular piston is arranged in the annular cylinder in a sliding manner;

a platen;

the pin shafts are uniformly arranged along the circumferential direction of the pressure plate at intervals, one end of each pin shaft penetrates through the pressure plate and is connected with the brake seat, a first nut is screwed at the other end of each pin shaft, a spring is sleeved on each pin shaft between the pressure plate and the first nut, a plurality of adjusting screws are arranged at intervals in the circumferential direction of the pressure plate, and one ends of the adjusting screws penetrate through the pressure plate and abut against the annular piston;

the protection plate is multiple, and a plurality of the protection plate is with a plurality of round pin hub connection forms a plurality of connection group, and each connection group includes one the protection plate with at least two that the protection plate is connected simultaneously the round pin axle, the protection plate with the spring is located respectively the both sides of first nut.

2. The brake with the safety protection device as claimed in claim 1, wherein the protection plate has at least two connection holes, each connection hole passes through each pin, a second nut is screwed on the pin, and the protection plate is located between the second nut and the first nut.

3. The brake with the safety protection device as claimed in claim 2, wherein the protection plate is a straight plate, two of the connection holes are correspondingly arranged at positions of the protection plate close to two ends of the protection plate, and the protection plate is connected with two adjacent pin shafts.

4. The brake with the safety protection device as claimed in claim 2, wherein the protection plate is V-shaped, and there are three connection holes, two of the connection holes are disposed near two ends of the protection plate, another connection hole is disposed at a middle corner of the protection plate, and the protection plate is connected to three adjacent pins.

5. The brake with the safety protection device according to claim 2, wherein the protection plate is provided with a plurality of toothed plates, the toothed plates are connected together at respective one ends, the other ends of the toothed plates are scattered to the periphery to form a chain wheel shape, the number of the toothed plates is the same as that of the pin shafts, the connecting holes are arranged in a plurality, and the connecting holes are correspondingly arranged at one ends, far away from the connecting ends, of the toothed plates.

6. A brake with a safety device according to claim 3, 4 or 5, wherein the protection plate is a high manganese steel plate.

Images