CN206347046U - A kind of friction stopping device - Google Patents

Abstract

The utility model discloses a friction braking device, which comprises a rotating shaft, and also includes a braking unit and a fixing unit. The braking unit is used for braking the rotating shaft, and the braking unit includes a friction plate, a pressing plate and a pressing mechanism; The pressing plate is fixedly connected with the rotating shaft, the friction plate is arranged between the pressing plate and the fixed unit, the pressing mechanism is arranged coaxially with the rotating shaft and acts on the pressing plate; when the pressing mechanism is in a relaxed state, the pressing plate and the rotating The shafts rotate synchronously; when the pressing mechanism is in the pressing state, the pressing mechanism presses the pressing plate, the friction plate and the surface of the fixing unit together to prevent the rotation of the rotating shaft. The device is simple in structure, low in cost, easy to assemble and maintain, and can quickly generate high braking torque to prevent the rotation of the rotating shaft by manual operation without using special tools, saving manpower and material resources while improving efficiency.

Description

A friction brake device

technical field

The utility model relates to the field of friction braking, in particular to a friction braking device suitable for a rotating shaft.

Background technique

At present, flexible bodies such as tapes or kinematic pairs that require rotational motion require constant torque braking, mainly using mechanical braking, hydraulic pressure, magnetic powder, hysteresis, etc., or motor drive control braking, but mechanical braking The dynamic structure is complicated, the assembly is difficult, and the maintenance and replacement are troublesome; the braking cost of hydraulic pressure, magnetic powder, hysteresis and other methods is high, and it needs the cooperation of external equipment to realize it, which needs to occupy a large space; the motor drive control braking has the disadvantages of high safety performance requirements. , so the existing braking device still needs further improvement.

Utility model content

The purpose of the utility model is to solve the problems in the prior art and provide a friction brake device with simple structure, low cost, easy assembly and maintenance, fast and simple adjustable braking torque.

In order to achieve the above object, the utility model adopts the following technical solutions:

A friction braking device, including a rotating shaft, and also includes a braking unit and a fixing unit,

The braking unit is used to brake the rotating shaft, and the braking unit includes a friction plate, a pressing plate and a pressing mechanism;

The pressing plate is fixedly connected to the rotating shaft, the friction plate is arranged between the pressing plate and the fixed unit, and the pressing mechanism is arranged coaxially with the rotating shaft and acts on the pressing plate;

When the pressing mechanism is in a relaxed state, the pressing plate rotates synchronously with the rotating shaft;

When the pressing mechanism is in the pressing state, the pressing mechanism presses the pressing plate, the friction plate and the surface of the fixing unit together to prevent the rotation of the rotating shaft.

Further, the pressing mechanism includes a spring and a knob, the knob is installed on the rotating shaft, and the spring is installed between the knob and the pressure plate; when the knob is displaced toward the pressure plate, the spring compresses and pushes against the pressure plate, The pressure plate drives the friction plate to act on the surface of the fixed unit to form a pressure resistance friction brake.

Further, the friction plate is fixed on the surface of the fixing unit.

Further, the pressing plate is fixedly connected to the rotating shaft in a detachable manner.

Further, the pressing plate is connected to the rotating shaft through a keyway.

Compared with the prior art, the technical solution described in the utility model has the beneficial effects of:

(1) A pressing plate that rotates synchronously with the rotating shaft is provided, a friction plate is set between the pressing plate and the fixed unit, and the pressure plate, the friction plate and the fixed unit are pressed against each other through the action of the pressing mechanism. The device has a simple structure, low cost, and is easy to Assembling and maintenance, manual operation can quickly generate high braking torque to prevent the rotation of the rotating shaft, without using special tools, saving manpower and material resources while improving efficiency.

(2) The pressing mechanism is set as a spring and a knob. Moving the knob can compress the spring and push against the pressure plate to drive the friction plate to act on the surface of the fixed unit to form a friction brake against the surface of the fixed unit, generating a braking torque and this braking torque It can be adjusted according to needs, and it can be applied to rotating shafts with different speeds, so it can be used more widely.

(3) The friction plate is fixed on the surface of the fixed unit, and the pressing mechanism only needs to push the pressure plate to realize the pressing of the pressure plate, the friction plate and the fixed unit, which reduces the force on the pressing mechanism, saves more labor and saves The physical strength of the operator.

(4) The detachable fixed connection between the pressing plate and the rotating shaft makes the maintenance of the pressing plate and the rotating shaft more convenient.

(5) The pressing plate and the rotating shaft are connected through a keyway, so the structure is simple and the cost is saved.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 is the schematic diagram of the utility model embodiment.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer and clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, the friction braking device includes a rotating shaft 1, a braking unit 2 and a fixing unit 3. The braking unit 2 includes a friction plate 21, a pressing plate 22, a spring 23 and a knob 24. The pressing plate 22 and the rotating shaft 1 pass through a keyway 4 connection, the friction plate 21 is fixed on the surface of the fixing unit 3 , the knob 24 is installed on the rotating shaft 1 , and the spring 23 is installed between the knob 24 and the pressure plate 22 . The spring 23 and the knob 24 act together on the pressure plate. When the knob 24 is displaced toward the pressure plate 22, the spring 23 compresses and pushes against the pressure plate 22, and the pressure plate 22 presses against the friction plate 21 to form a friction brake against the rotation shaft 1. rotation. When the spring 23 is in a relaxed state, the pressing plate 22 rotates synchronously with the rotating shaft 1 .

The utility model has the advantages of simple structure, low cost, easy assembly and maintenance, high braking torque can be quickly generated by manual operation to prevent the rotation of the rotating shaft, no special tools are needed, and the efficiency is improved while saving manpower and material resources. The torque can be adjusted according to the needs, and it can be applied to rotating shafts with different speeds, and the application is more extensive. Only need to push the pressure plate to realize the pressing of the pressure plate, the friction plate and the fixed unit, which is more labor-saving and saves the physical strength of the operator. It is a friction brake device worthy of popularization and application.

The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model is not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various Various other combinations, modifications and environments can be made within the scope of the utility model concept described herein, through the above teachings or the technology or knowledge in the related field. However, changes and changes made by those skilled in the art do not depart from the spirit and scope of the utility model, and should all be within the protection scope of the appended claims of the utility model.

Claims (5)

1. A friction braking device, comprising a rotating shaft, is characterized in that: it also includes a braking unit and a fixing unit, The braking unit is used to brake the rotating shaft, and the braking unit includes a friction plate, a pressing plate and a pressing mechanism; The pressing plate is fixedly connected to the rotating shaft, the friction plate is arranged between the pressing plate and the fixed unit, and the pressing mechanism is arranged coaxially with the rotating shaft and acts on the pressing plate; When the pressing mechanism is in a relaxed state, the pressing plate rotates synchronously with the rotating shaft; When the pressing mechanism is in the pressing state, the pressing mechanism presses the pressing plate, the friction plate and the surface of the fixing unit together to prevent the rotation of the rotating shaft. 2. A friction braking device as claimed in claim 1, characterized in that: the pressing mechanism comprises a spring and a knob, the knob is installed on the rotating shaft, and the spring is installed between the knob and the pressing plate ; When the knob is displaced toward the pressure plate, the spring compresses and pushes against the pressure plate, and the pressure plate drives the friction plate to act on the surface of the fixed unit to form a friction brake against the pressure plate. 3. A friction brake device according to claim 1 or 2, characterized in that the friction plate is fixed on the surface of the fixing unit. 4. A friction brake device according to claim 1 or 2, characterized in that: the pressure plate is fixedly connected to the rotating shaft in a detachable manner. 5. A kind of friction brake device as claimed in claim 4, is characterized in that: described pressing plate and rotating shaft are connected through keyway.