Safety disc brake

Abstract

The utility model relates to the technical field of brakes, in particular to a safety disc brake which comprises a support, the side face of the inner wall of the support is rotationally connected with a pair of force arms through a rotating shaft, a front shell is arranged on the outer sides of the force arms, a double-layer sleeve is arranged on the outer side of the front shell, and a rear shell is arranged at the end, away from the front shell, of the double-layer sleeve. A fixing sleeve is arranged on the outer side of the front shell in a penetrating mode, a piston is slidably connected to the side face of the inner wall of the double-layer sleeve, an air cylinder ejector rod is slidably connected to the side face of the inner wall of the fixing sleeve, and the air cylinder ejector rod penetrates through the piston. According to the utility model, the fixed sleeve, the cylinder ejector rod, the rear shell, the double-layer sleeve, the threaded hole and the adjusting screw are arranged in a matched manner, the brake is opened through air pressure, and the brake realizes braking after the air pressure is cut off. Compared with ventilation braking and air-cut opening of a traditional brake, the safety disc brake can achieve braking under the condition of sudden power failure and air cut, and operation safety of workers is better guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake, especially relates to a safe disc brake. BACKGROUND

[0002] The air brake disc brake is also called safe disc brake, which can effectively realize braking and guarantee the safety of workers when power or gas is suddenly cut off.

[0003] According to the related technology in the above, the inventor considers that the conventional brake can only slow down or stop the machine by a certain air pressure, and when an emergency occurs, the brake will completely lose its function, which can easily threaten the life safety of the production operator and cause an accident. Therefore, the utility model provides a safe disc brake. UTILITY MODEL CONTENTS

[0004] The purpose of the present application is to provide a safe disc brake to solve the problem that the brake can only rely on air pressure to brake in the above background technology

[0005] To achieve the above purpose, the present application provides the following technical scheme: a safe disc brake, comprising a support, a pair of force arms are rotatably connected to the inner wall side of the support through a rotating shaft, a front shell is arranged on the outer side of the force arm, a double-layer sleeve is arranged on the outer side of the front shell, a rear shell is arranged at one end of the double-layer sleeve away from the front shell, a fixed sleeve pipe is arranged on the outer side of the front shell, a piston is slidably connected to the inner wall side of the double-layer sleeve, a pneumatic cylinder jack is slidably connected to the inner wall side of the fixed sleeve pipe, the pneumatic cylinder jack penetrates the piston, and an adjusting assembly is arranged on the outer side of the pneumatic cylinder jack.

[0006] Preferably, the outer side of the double-layer sleeve is provided with a gas inlet pipe in communication, the outer side of the fixed sleeve pipe is provided with an external thread, the outer side of the fixed sleeve pipe is threadedly connected with a fixed nut, and the fixed nut is attached to the force arm.

[0007] Preferably, a plurality of buffer shafts are fixedly connected to the side of the piston, and springs are arranged on the outer side of the buffer shafts.

[0008] Preferably, one end of the force arm is provided with a mounting seat, a friction plate is arranged on the side of the mounting seat, and a clasp spring is arranged between the mounting seat and the force arm.

[0009] Preferably, a pin shaft is fixedly connected to the outer side of the force arm, and the pin shaft is rotatably connected with the mounting seat.

[0010] Preferably, the outer side of the bracket is movably connected with a fixing sheet, and the fixing sheet is connected with the mounting seat through a pin shaft.

[0011] In conclusion, the technical effects and advantages of the present application are as follows:

[0012] 1. In the present application, the fixed sleeve, the cylinder rod, the rear shell, the double-layer sleeve, the threaded hole and the adjusting screw are cooperatively arranged, the distance between the cylinder rod and the end of the adjusting screw extending to the outside is shortened or lengthened by twisting the adjusting screw, different thicknesses of friction materials can be adapted, the friction materials can be used for a longer time, the adaptation range is wider, the brake is opened by air pressure, and the brake is braked after the air pressure is disconnected. Compared with the air braking of the traditional brake, the safety disc brake can brake in the case of sudden power failure and air stop to ensure the safety of the workers.

[0013] 2. In the present application, the fixing sheet, the mounting seat and the pin shaft are cooperatively arranged, the mounting seat is limited, the friction plate can be deflected by a certain angle when clamping the friction material, and the friction plate and the friction material plane are better in contact. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a first perspective view of the structure of the present application.

[0016] Figure 2 It is a second perspective view of the structure of the present application.

[0017] Figure 3 It is a structure diagram of the spring and the buffer shaft in the present application.

[0018] Figure 4 It is a structure diagram of the adjusting screw in the present application.

[0019] In the drawings: 1, bracket; 2, force arm; 3, double-layer sleeve; 4, rear shell; 5, adjusting screw; 6, fixed nut; 7, cylinder rod; 8, spring; 9, buffer shaft; 10, mounting seat; 11, friction plate; 12, clamping spring; 13, fixing sheet; 14, pin shaft; 15, fixed sleeve; 16, piston; 17, front shell. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense. For example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; or can be connected internally between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0022] Embodiment one: reference Figures 1-4The safe disc brake shown includes a support 1 which plays a role of supporting and fixing the whole braking system, ensures the stable position of each component during work, and is rotationally connected with a pair of force arms 2 on the inner wall side through a rotating shaft. The force arms 2 can transmit and amplify the external force, thereby pushing the subsequent components to realize the braking action. The outer side of the force arms 2 is provided with a front shell 17 which is used for protecting the internal piston 16 and other components, preventing them from being collided and damaged by the outside world. The outer side of the front shell 17 is provided with a double-layer sleeve 3 which not only provides a sliding track for the piston 16, but also can enhance the strength of the whole braking structure to a certain extent. The end of the double-layer sleeve 3 away from the front shell 17 is provided with a rear shell 4 which further closes the braking structure and cooperates with an adjusting screw 5 to realize the adjustment of the position of a cylinder jack 7. The outer side of the front shell 17 is provided with a fixed sleeve 15 which is used for guiding the movement direction of the cylinder jack 7, and ensures the linear movement thereof.The inner wall side of the double-layer sleeve 3 is slidably connected with a piston 16, the piston 16 slides in the double-layer sleeve 3, and the piston 16 pushes the friction plate 11 to realize braking by moving; the inner wall side of the fixed sleeve 15 is slidably connected with a cylinder jack 7, the cylinder jack 7 penetrates the piston 16, the cylinder jack 7 can transmit power from a gas source to the piston 16 to push the piston 16 to move, and the outer side of the cylinder jack 7 is provided with an adjusting assembly; the adjusting assembly comprises a threaded hole opened in the inner side of the cylinder jack 7, the threaded hole is threadedly connected with an adjusting screw 5 on the inner wall side, the adjusting screw 5 is threadedly connected with the rear shell 4, the extending length of the cylinder jack 7 can be adjusted by rotating the adjusting screw 5, so that the sensitivity and intensity of braking can be adjusted according to actual needs; the outer side of the double-layer sleeve 3 is provided with a communication gas inlet pipe, the gas inlet pipe is used for inputting compressed air and other power sources into the double-layer sleeve 3 to push the piston 16 to move, the outer side of the fixed sleeve 15 is provided with external threads, the outer side of the fixed sleeve 15 is threadedly connected with a fixed nut 6, the fixed nut 6 is attached to the force arm 2, and the fixed nut 6 is used for firmly fixing the fixed sleeve 15 on the force arm 2 to ensure the stability of the connection; the side of the piston 16 is fixedly connected with a plurality of buffer shafts 9, the outer side of the buffer shaft 9 is sleeved with a spring 8, the spring 8 and the buffer shaft 9 jointly act to buffer during braking, reduce the impact force during braking, make the braking process more stable, and prolong the service life of the components; one end of the force arm 2 is provided with a mounting seat 10, the mounting seat 10 is used for mounting the friction plate 11 to ensure that the friction plate 11 plays a braking role in the correct position, the side of the mounting seat 10 is provided with the friction plate 11, the friction plate 11 directly contacts with the friction material, the braking effect is realized through the friction force, a clamping spring 12 is arranged between the mounting seat 10 and the force arm 2, the clamping spring 12 is used for fixing the relative position of the mounting seat 10 and the force arm 2 to prevent the mounting seat 10 from moving on the force arm 2; the outer side of the force arm 2 is fixedly connected with a pin shaft 14, the pin shaft 14 is rotatably connected with the mounting seat 10, the pin shaft 14 enables the mounting seat 10 to rotate relative to the force arm 2, the mounting seat 10 can better fit the friction material during braking, and the braking effect is improved, the outer side of the bracket 1 is movably connected with a fixed sheet 13, the fixed sheet 13 is connected with the mounting seat 10 through a pin shaft, and the fixed sheet 13 further plays a limiting and fixing role on the mounting seat 10 to ensure the stability of the braking system during work.

[0023] In this embodiment, the fixed sleeve 15 is fixed by the fixed nut 6, the air pump controls the air inlet through the air inlet pipe, the air pressure of the double-layer sleeve 3 near the inner side of the fixed sleeve 15 increases, the piston 16 drives the cylinder jib 7 to move to the rear shell 4, the air pump controls the air inlet pipe to exhaust, the air pressure decreases, the piston 16 resets under the action of the spring 8, the piston 16 drives the cylinder jib 7 to reset, the cylinder jib 7 drives the force arm away from the front shell 17 to move, realizes the reciprocating motion of a pair of force arms 2, the force arm 2 drives the friction plate 11 to move through the mounting seat 10, and the machine is slowed down or stopped through the friction between the friction plate 11 and the external friction material, the adjusting screw 5 is twisted, the distance between the cylinder jib 7 and the end of the adjusting screw 5 extending to the outside is shortened, the adjusting screw 5 is twisted in the opposite direction, the distance between the cylinder jib 7 and the end of the adjusting screw 5 extending to the outside is lengthened, and different thicknesses of brake pads can be adapted.

[0024] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A safety disc brake comprising a carrier (1), characterized in that: The inner wall side of the support (1) is rotatably connected with a pair of force arms (2) through a rotating shaft, the outer side of the force arm (2) is provided with a front shell (17), the outer side of the front shell (17) is provided with a double-layer sleeve (3), the end of the double-layer sleeve (3) away from the front shell (17) is provided with a rear shell (4), the outer side of the front shell (17) is provided with a fixed sleeve (15), the inner wall side of the double-layer sleeve (3) is slidably connected with a piston (16), the inner wall side of the fixed sleeve (15) is slidably connected with a cylinder jack (7), the cylinder jack (7) penetrates the piston (16), the outer side of the cylinder jack (7) is provided with an adjusting assembly; the adjusting assembly comprises a threaded hole opened in the inner side of the cylinder jack (7), the inner wall side of the threaded hole is threadedly connected with an adjusting screw (5), and the adjusting screw (5) is threadedly connected with the rear shell (4).

2. A safety disc brake according to claim 1, characterized in that: The outer side of the double-layer sleeve (3) is provided with a communication gas inlet pipe, the outer side of the fixed sleeve (15) is provided with an external thread, the outer side of the fixed sleeve (15) is threadedly connected with a fixed nut (6), and the fixed nut (6) is attached to the force arm (2).

3. A safety disc brake according to claim 2, characterized in that: The side of the piston (16) is fixedly connected with a plurality of buffer shafts (9), and the outer side of the buffer shaft (9) is sleeved with a spring (8).

4. A safety disc brake according to claim 3, characterized in that: One end of the force arm (2) is provided with a mounting seat (10), the side of the mounting seat (10) is provided with a friction plate (11), and the mounting seat (10) and the force arm (2) are provided with a clamping spring (12) therebetween.

5. A safety disc brake according to claim 4, characterized in that: The outer side of the force arm (2) is fixedly connected with a pin shaft (14), and the pin shaft (14) is rotatably connected with the mounting seat (10).

6. A safety disc brake according to claim 4, characterized in that: The outer side of the support (1) is movably connected with a fixing piece (13), and the fixing piece (13) is connected with the mounting seat (10) through a pin shaft.

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