CN211501402U

CN211501402U - Bag type braking mechanism

Info

Publication number: CN211501402U
Application number: CN202020078476.8U
Authority: CN
Inventors: 刘晓乐; 刘景伟; 刘云东; 高飞; 景国丰
Original assignee: Yantai Universal Machine Tool Accessory Group Co ltd; Yantai Global Cnc Technology Co ltd
Current assignee: Yantai Universal Machine Tool Accessory Group Co ltd; Yantai Global Cnc Technology Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-09-15
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a tight mechanism of bag formula of stopping, including fixed base member, the apparatus further comprises a rotating shaft, the tight piece of stopping, stop tight dish and stop tight seat, the pivot is rotatably installed on fixed base member, along the axial cover in proper order in the pivot be equipped with stop tight piece, stop tight dish and stop tight seat fixed connection, stop tight seat and fixed base member fixed connection, stop tight dish and stop and be provided with the leather cup between tight seat, the radial inside edge of leather cup is by stopping tight seat and stop tight dish gland seal, the radial outside edge of leather cup is by stopping tight seat and gland clamp, the opening of the depressed part of the tight seat of stopping makes the depressed part of leather cup form an inclosed appearance chamber, stop and be provided with the intercommunication on the tight seat the first runner that holds the chamber. The utility model has the advantages that: the brake mechanism is compact, and the space utilization rate is increased; the structure is simple, and the manufacturing cost is reduced. Under the same hydraulic or air pressure condition, the braking force is improved, and the braking effect is increased.

Description

Bag type braking mechanism

Technical Field

The utility model relates to a pivot braking technical field, especially a tight mechanism of bag formula brake.

Background

Nowadays, a braking mechanism is needed in the fields of automobiles, numerical control turntables, excavators, and the like. The problem that the maximum locking force is always realized by the simplest mode and the lowest pressure (hydraulic pressure or air pressure) is always searched, the existing braking mechanism on the market can meet part of requirements, but the braking structure is complex and occupies a large proportion of the overall structure, higher hydraulic pressure or air pressure is needed to be used to realize the required braking force, the fatigue damage of part of structural parts can be accelerated under the condition of higher hydraulic pressure or air pressure, and the service life of a product is difficult to improve. A braking mechanism with low cost, compact structure, high locking force and high reliability is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a tight mechanism of bag formula of stopping to make the tight mechanism of stopping compact, increase space utilization, reduce manufacturing cost, under same hydraulic pressure or atmospheric pressure condition, improve the tight power of stopping, increase the tight effect of stopping.

The purpose of the utility model is realized through the following technical scheme: a bag type tight braking mechanism comprises a fixed base body, a rotating shaft, a tight braking sheet, a tight braking disc and a tight braking seat, wherein the rotating shaft is rotatably arranged on the fixed base body, the tight braking sheet, the tight braking disc and the tight braking seat are sequentially sleeved on the rotating shaft along the axial direction, the tight braking sheet is fixedly connected with the rotating shaft, a radial gap is formed between the rotating shaft and the tight braking disc and between the tight braking sheet and the fixed base body, tight braking gaps are respectively formed between the tight braking sheet and the tight braking disc, the tight braking disc is fixedly connected with the tight braking seat through a connecting bolt, the tight braking seat is fixedly connected with the fixed base body through a connecting bolt, an annular pressing plate is arranged between the tight braking seat and the fixed base body, the pressing plate is positioned at the radial outer side of the tight braking sheet and the tight braking disc, a leather cup is arranged between the tight braking disc and the tight braking seat, the leather cup is provided with an annular part with a concave part, one end of the leather cup, which is axially close to, the edge of the inner side of the leather cup in the radial direction is compressed and sealed by a brake seat and a brake disc, the edge of the outer side of the leather cup in the radial direction is compressed and sealed by the brake seat and a compression plate, the opening of the concave part of the sealed leather cup of the brake seat enables the concave part of the leather cup to form a closed containing cavity, and the brake seat is provided with a communicating first flow channel for containing the cavity.

High-pressure liquid or high-pressure gas is injected through the first flow channel, so that the leather cup is subjected to high-pressure action to generate plastic deformation, the tight disc is pressed and braked, the tight disc is tightly pressed, the tight disc is attached to the fixed base body, friction force is generated, and locking is realized. After the hydraulic pressure or the air pressure is relieved, the braking sheet is separated from the fixed base body through the elasticity of the braking sheet; the elastic force of the brake disc enables the brake disc and the brake sheet to be separated, and loosening is achieved.

Further preferably, the pivot include connecting axle and main shaft, the main shaft rotation mounting has the boss on fixed base member, the tip of connecting axle has the boss, the one end that the connecting axle was connected to the main shaft is provided with and is used for the holding the cavity of boss, the boss on in proper order the cover be equipped with first adjustment pad, tight piece and the second adjustment pad of stopping, connecting bolt passes main shaft, first adjustment pad, tight piece, the second adjustment pad and the connecting epaxial screw hole of connecting in proper order and screws fixedly, realize main shaft, first adjustment pad, the tight piece of stopping, the fixed connection of second adjustment pad and connecting axle. The thickness of the first adjusting pad and the thickness of the pressing plate can be adjusted to adjust the gap between the brake sheet and the brake disc, and the thickness of the second adjusting pad can be adjusted to adjust the gap between the brake sheet and the fixed base body.

Preferably, the pressure strip is provided with a second flow channel communicated with the first flow channel, the fixed base body is provided with a third flow channel communicated with the second flow channel, and both ends of the second flow channel are provided with sealing rings. So that the first flow passage, the second flow passage and the third flow passage together constitute a flow passage for the pressure fluid.

Preferably, for the convenience of processing, first runner constitute by a plurality of hole sections that communicate in proper order, the middle part of first runner has the processing hole of intercommunication exterior space, installs the ball stopper of shutoff processing hole on the tight seat of stopping.

According to the working environment, the required locking torque of a place is calculated, a pressure regulating valve and a pressure relay are additionally arranged on an oil path or an air path of the system, and the pressure regulating valve regulates the pressure of a braking mechanism to obtain proper braking force. The electromagnetic relay detects whether the system pressure is removed or not, and the effect of protecting the system is achieved. And calculating hydraulic pressure or air pressure required by the system according to the locking torque, adjusting the pressure regulating valve to a reasonable calculation value, and adjusting the pressure relay to the system pressure allowed during loosening. When the electromagnetic valve is in a power-on state and a power-off state, the pressure relay gives a releasing signal, and the mechanism is in a releasing state.

The utility model has the advantages of it is following:

the utility model makes the brake mechanism compact and increases the space utilization rate; the structure is simple, and the manufacturing cost is reduced. Under the same hydraulic or air pressure condition, the braking force is improved, and the braking effect is increased.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a hydraulic or pneumatic system of the present invention in use.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in figure 1, a bag type brake mechanism comprises a fixed base body 1, a rotating shaft, a brake sheet 2, a brake disc 3 and a brake seat 4, wherein the rotating shaft is rotatably arranged on the fixed base body 1, the brake sheet 2, the brake disc 3 and the brake seat 4 are sequentially sleeved on the rotating shaft along the axial direction, the brake sheet 2 is fixedly connected with the rotating shaft, a radial gap is formed between the rotating shaft and the brake disc 3 and between the rotating shaft and the brake seat 4, a brake gap is respectively formed between the brake sheet 2 and the brake disc 3 and between the brake sheet 2 and the fixed base body 1, the brake disc 3 is fixedly connected with the brake seat 4 through a connecting bolt, the brake seat 4 is fixedly connected with the fixed base body 1 through a connecting bolt, an annular compression plate 5 is arranged between the brake seat 4 and the fixed base body 1, the compression plate 5 is positioned at the radial outer side of the brake sheet 2 and the brake disc 3, a leather cup 15 is arranged between the brake disc 3 and the brake seat 4, and the leather cup 15 is provided with a ring-shaped element with a depressed part, depressed part have the open-ended ring channel for the one end that is close to tight seat 4 of stopping at leather cup 15 axial, leather cup 15's radial inboard edge is by tight seat 4 of stopping and tight 3 gland seals of stopping, leather cup 15's radial outside edge is by tight seat 4 and the pressure strip 5 gland seal of stopping, the opening of tight seat 4 sealed leather cup 15's of stopping the depressed part makes leather cup 15's depressed part form an inclosed appearance chamber 6, is provided with the intercommunication on the tight seat 4 of stopping the first runner 7 that holds chamber 6.

High-pressure liquid or high-pressure gas are injected through the first flow channel 7, so that the leather cup 15 generates plastic deformation under the action of high pressure, the tight disc 3 is pressed and stopped, the tight disc 3 is pressed and the tight sheet 2 is attached to the fixed base body 1, friction force is generated, and locking is realized. After the hydraulic pressure or the air pressure is relieved, the braking sheet 2 is separated from the fixed base body 1 through the elasticity of the braking sheet 2; through the elasticity of the tight dish 3 of stopping, make the tight dish 3 of stopping separate with the tight piece 2 of stopping, realize unclamping.

Further preferably, the pivot include connecting axle 8 and main shaft 9, main shaft 9 is rotatory to be installed on fixed base member 1, and the tip of connecting axle 8 has the boss, and the one end that connecting axle 8 was connected to main shaft 9 is provided with and is used for the holding the cavity of boss, the boss on in proper order the cover be equipped with first adjustment pad 10, tight piece 2 and the second adjustment pad 11 of stopping, connecting bolt passes main shaft 9, first adjustment pad 10 in proper order, the tight piece 2 of stopping, the second adjustment pad 11 and the connecting axle 8 on the screw hole and screw fixedly, realize main shaft 9, first adjustment pad 10, the tight piece 2 of stopping, the second adjustment pad 11 and connecting axle 8's fixed connection. The thickness through adjusting first adjusting pad 10 and the thickness of pressure strip 5 can be adjusted and the tight piece 2 of stopping and the clearance between the tight dish 3 of stopping, and the thickness through adjusting second adjusting pad 11 can be adjusted and the clearance between tight piece 2 of stopping and fixed base member 1.

Preferably, the pressing plate 5 is provided with a second flow channel 12 communicated with the first flow channel 7, the fixed base 1 is provided with a third flow channel 13 communicated with the second flow channel 12, and both ends of the second flow channel 12 are provided with sealing rings. So that the first flow channel 7, the second flow channel 12 and the third flow channel 13 together constitute a flow channel for the pressure fluid.

Preferably, for convenience of processing, the first flow passage 7 is composed of a plurality of hole sections which are sequentially communicated, a processing hole communicated with an external space is formed in the middle of the first flow passage 7, and a ball plug 14 for plugging the processing hole is installed on the brake seat 4.

According to the working environment, the required locking torque of the part is calculated, a pressure regulating valve and a pressure relay are additionally arranged on a system oil path or an air path communicated with the first flow channel 7, and the pressure regulating valve regulates the pressure of the braking mechanism to obtain proper braking force. The electromagnetic relay detects whether the system pressure is removed or not, and the effect of protecting the system is achieved. And calculating hydraulic pressure or air pressure required by the system according to the locking torque, adjusting the pressure regulating valve to a reasonable calculation value, and adjusting the pressure relay to the system pressure allowed during loosening. When the electromagnetic valve is in a power-on state and a power-off state, the pressure relay gives a releasing signal, and the mechanism is in a releasing state.

Claims

1. The utility model provides a tight mechanism of bag formula brake which characterized in that: the brake device comprises a fixed base body, a rotating shaft, a brake sheet, a brake disc and a brake seat, wherein the rotating shaft is rotatably arranged on the fixed base body, the brake sheet, the brake disc and the brake seat are sequentially sleeved on the rotating shaft along the axial direction, the brake sheet is fixedly connected with the rotating shaft, a radial gap is formed between the rotating shaft and the brake disc and between the brake sheet and the fixed base body, the brake disc is fixedly connected with the brake seat through a connecting bolt, the brake seat is fixedly connected with the fixed base body through a connecting bolt, an annular pressure plate is arranged between the brake seat and the fixed base body, the pressure plate is positioned on the radial outer side of the brake sheet and the brake disc, a leather cup is arranged between the brake disc and the brake seat, the leather cup is provided with an annular part with a concave part, the concave part is an annular groove with an opening is formed at one end, close to the brake seat, in the axial direction of the leather cup, and the radial edge of the brake disc is tightly pressed and sealed by the brake disc, the radial outside edge of the leather cup is tightly sealed by the pressing of the brake seat and the pressing plate, the opening of the depressed part of the sealed leather cup of the brake seat enables the depressed part of the leather cup to form a closed containing cavity, and the brake seat is provided with a first flow channel communicated with the containing cavity.

2. The bladder type tightening mechanism according to claim 1, characterized in that: the pivot include connecting axle and main shaft, the main shaft rotation mounting has the boss on fixed base member, the tip of connecting axle, the one end that the connecting axle was connected to the main shaft is provided with and is used for the holding the cavity of boss, the boss on overlap in proper order and be equipped with first adjustment pad, tight piece and the second adjustment pad of stopping.

3. The bladder type tightening mechanism according to claim 2, characterized in that: the connecting bolt sequentially penetrates through threaded holes in the main shaft, the first adjusting pad, the tightening piece, the second adjusting pad and the connecting shaft and is screwed and fixed, and the main shaft, the first adjusting pad, the tightening piece, the second adjusting pad and the connecting shaft are fixedly connected.

4. The bladder type tightening mechanism according to claim 1, characterized in that: the pressing plate is provided with a second flow passage communicated with the first flow passage, and the fixed base body is provided with a third flow passage communicated with the second flow passage.

5. The bladder type tightening mechanism according to claim 4, characterized in that: and sealing rings are arranged at two ends of the second flow channel.

6. The bladder type tightening mechanism according to claim 1, characterized in that: the middle part of the first flow passage is provided with a processing hole communicated with the external space, and the braking seat is provided with a ball plug for plugging the processing hole.