CN207387186U - Shaft brake gear - Google Patents

Abstract

The utility model provides a kind of shaft brake gear, including：One body, two power brakes and a limiting device, body, which rotates, is equipped with a shaft, one end of shaft is equipped with a disc, two power brakes are installed on body interior, and for being arranged in shaft, two power brakes include a fixed part and a piston portion respectively, two fixed parts be combined with each other with two piston portions, and each fixed part is arranged on body, mutually towards disc, disc is located between two power cylinders two piston portions；Whereby, carry out clamping brake when, two power brakes by the setting of limiting device can make disc reach immediately brake stop, and then lathe process or milling machine processing on will not generate offset error, accurate accurate machining can be reached the effect of.

Description

Shaft brake gear

Technical field

The utility model is related to a kind of brake gear, espespecially a kind of turn for being used for corresponding to lathe process and milling machine processing brake Axle braking device.

Background technology

General lathe bench is the collet that workpiece is clamped in lathe in running, and by lathe tool tool needle to height The workpiece of fast axial rotation carries out turning operation, and the function mode of milling machine processing machine is that workpiece is fixed on processing on the contrary On ride, by the cutter of high-speed rotation, the workpiece processed on ride is subjected to Milling Process.

And traditional lathe bench or milling machine machine table is all processed vehicle pin using high-speed rotation mode or milling adds Work, but two power brakes of traditional lathe bench or milling machine machine table do not have limit function, along with two The piston portion of power brake for annular shape, thus piston portion carry out clamping brake when can with the disc of high-speed rotation and Inertia rotates, and then the workpiece rotated on lathe bench and the cutter rotated on milling machine machine table can not be made to brake stop immediately Only, cause lathe bench or milling machine processing machine that can generate pivot offset angle in processing, and then processing is generated not in processing The problem of accurate.

Also, complex milling machine or milling vehicle compounding machine can be carried out at the same time turning operation and milling operation for workpiece, be Ensure the precision in processing operation, therefore complex milling machine more requires accurately to brake and stop positioning vehicle immediately.

Utility model content

In order to solve the problem of that existing lathe or milling machine board can be generated and can not accurately braked in brake, especially in vehicle The accurate positionin demand of milling compounding machine or milling vehicle compounding machine, the utility model provide a kind of shaft brake gear, in brake The effect of disc of high-speed rotation can be made accurately to brake stopping, reaching accurate turning or Milling Process.

One embodiment of the utility model provides a kind of shaft brake gear, including：One body rotates and is equipped with one Shaft, one end of shaft are equipped with a disc；Two power brakes, are installed on body interior, for being arranged in shaft On, two power brakes include a fixed part and a piston portion respectively, and two fixed parts be combined with each other with two piston portions, And each fixed part is arranged on body, mutually towards disc, disc is located between two power brakes two piston portions；And One limiting device is arranged between body and two power brakes, each piston portion is made not rotate.

Preferably, two piston portions are respectively equipped with an at least storage tank, limiting device includes two locating parts, two /Vs Correspondence is placed in an at least storage tank for two piston portions part respectively.

Preferably, the quantity of an at least storage tank for each piston portion is three, three storage tanks are radially extended towards shaft, and Three storage tanks are located on the outside of each piston portion, the quantity of limiting device and the quantity of an at least storage tank for each piston portion It is identical.

Preferably, two locating parts are mounted side by side on body, and disc is located between two locating parts.

Preferably, the depth of each storage tank is more than the thickness of each locating part.

Preferably, the shaft brake gear of the utility model further includes an inlet duct, two power brake dresses are provided Put the power clamped respectively toward disc direction.

Preferably, being respectively provided with a driving space between each piston portion and each fixed part, inlet duct has an air inlet pipe Road, air inlet pipeline are installed in each fixed part and are communicated in each driving space.

Preferably, each driving space is equipped with a stripper loop, each driving space is separated to form one first driving sky by stripper loop Between and one second driving space, each stripper loop have multiple tap holes, first driving space with second driving space by shunting Hole is interconnected, and air inlet pipeline is communicated in the first driving space.

Preferably, each piston portion is respectively provided with a room and a flexible fastening piece, each flexible fastening piece is placed in each room In, and each flexible fastening piece fixes each piston portion and each fixed part screw lock.

Preferably, each flexible fastening piece includes an elastic portion and a screw part, each screw part is for being arranged elastic portion, each bullet Property portion be resisted against in each room, each elastic portion be spring.

Whereby, since limiting device makes two power brakes carry out clamping brake in dynamic state is maintained static When two power brakes disc can be made to reach brake immediately stop, and then will not being generated when lathe process or milling machine are processed Offset error, the effect of can effectively reaching accurate drilling and milling.

Description of the drawings

Fig. 1 is the position view of the utility model and body；

Fig. 2 is the structure sectional view of the utility model；

Fig. 3 is the stereoscopic schematic diagram of the power brake of the utility model；

Fig. 4 is two power brakes of the utility model and the partial sectional view of limiting device；

Fig. 5 is the use state sectional view (one) of the utility model, and expression drives two power brakes toward disc side To clamping, and two power brakes are fixed in limiting device /V；

Fig. 6 is two power brakes of the utility model and the partial sectional view of flexible fastening piece；

Fig. 7 is the use state sectional view (two) of the utility model, represents inlet duct toward driving inflated spatial；

Fig. 8 is the use state sectional view (three) of the utility model, represents driving space gassy, drives two power Brake gear is clamped toward disc direction.

Reference sign

10 bodies

11 shafts

12 discs

20 power brakes

21 fixed parts

22 piston portions

23 brake linings

24 perforation

25 storage tanks

26 rooms

27 flexible fastening pieces

271 screw parts

272 elastic portions

28 driving spaces

281 first driving spaces

282 second driving spaces

29 stripper loops

291 tap holes

30 limiting devices

31 protecting covers

32 locating parts

40 locking parts

50 air inlet pipelines.

Specific embodiment

For ease of illustration the utility model central idea represented in above-mentioned one column of utility model content, now with specific Embodiment is expressed.Various difference objects are given in the ratio suitable for enumerating explanation rather than in the ratio of actual component in embodiment To draw, it is hereby stated that.

It please referring to Fig.1 to shown in Fig. 8, the utility model provides a kind of shaft brake gear, including：

One body 10 can be the shell for the high speed rotating shaft that lathe process uses or the rotation ride of milling machine processing, at this In utility model embodiment, the shell for the high speed rotating shaft that body 10 uses for lathe process, the inside of body 10 is rotated along axis Equipped with a shaft 11, one end of shaft 11 is equipped with a discoid disc 12.

Two power brakes 20, whole in annular shape or probably in annular shape, two power brakes 20 are pacified Inside loaded on body 10, so that the axis of shaft 11 along body 10 wears two power brakes 20, two power brakes Device 20 includes a fixed part 21 and a piston portion 22 respectively, and two fixed parts 21 are fixed on inside the body 10 of 12 both sides of disc Place, each piston portion 22 are arranged at towards 12 direction of disc on each fixed part 21, and can be along the axial direction of shaft 11 in fixed part Toward polyslip on 21, wherein, the one side in each piston portion 22 towards 12 direction of disc is respectively provided with a brake lining 23, disc 12 Between two power brakes 20.

Two power brakes 20 are respectively equipped at least one perforation 24 and at least one storage tank 25, wherein, each power is stopped 24 quantity of perforation of vehicle device 20 is preferably three, and three perforation 24 are equidistantly located on each power brake 20, and are worn If each brake lining 23 and each piston portion 22, three perforation 24 provide a locking part 40 cooperation and wear respectively, and each brake is come Piece 23 is made with each piston portion 22 to lock to combine, the quantity of the storage tank 25 of each power brake 20 is three, three storage tanks 25 are equidistantly located on the outside of each brake lining 23 or each piston portion 22, and three storage tanks 25 are radially extended towards shaft 11 It sets.

The piston portion 22 of two power brakes 20 is respectively provided with a room 26 and a flexible fastening piece 27, and each elasticity is solid Determine the correspondence of part 27 to be placed in each room 26, each piston portion 22 is tied by each flexible fastening piece 27 and the mutually locking of each fixed part 21 It closes, in the utility model embodiment, each flexible fastening piece 27 includes a screw part 271 and an elastic portion 272, each screw part 271 can be that screw, bolt screw togather instrument, and the body portion of screw part 271 is for being arranged elastic portion 272, and then screw lock is fixed for end In each elastic portion 272 on fixed part 21, is made to be resisted against in each room 26, wherein, elastic portion 272 is spring, therefore each elasticity is solid The strength resetted can be resilient in each room 26 offer piston portion 22 by determining part 27.

In addition, a driving space 28 is respectively provided between the piston portion 22 of two power brakes 20 and fixed part 21, A stripper loop 29 is equipped in each driving space 28, each driving space 28 is separated to form one first driving space by stripper loop 29 281 and one second driving space 282, each stripper loop 29 have multiple tap holes 291, first driving space 281 and second driving Space 282 is interconnected by tap hole 291.

One limiting device 30, be arranged between body 10 and two power brakes 20, the quantity of limiting device 30 with The quantity of the storage tank 25 of each power brake 20 is identical, and in the utility model embodiment, the quantity of limiting device 30 is Three, as shown in Figures 2 to 4, each limiting device 30 includes a protecting cover 31 and two locating parts 32, protecting cover 31 and two /Vs Part 32 is installed on the inner edge of body 10 and close to disc 12, and the end of each locating part 32 is arc-shaped, and two locating parts 32 are simultaneously Row wears protecting cover 31, disc 12 is made to be located between two locating parts 32, two locating parts 32 radially block respectively towards shaft 11 at this time It is placed in a wherein storage tank 25 for two power brakes 20, wherein, the depth of each storage tank 25 is more than each locating part 32 Thickness so that each piston portion 22 can be moved back and forth smoothly along the axial direction of shaft 11.

One inlet duct provides the power that two power brakes 20 are clamped toward 12 direction of disc, new in this practicality In type embodiment, inlet duct has an air inlet pipeline 50 of connection pneumatic cylinder, and air inlet pipeline 50 is arranged in each fixed part 21, and And distinctly connection first drives space 281 by the stomata on two fixed parts 21.

It refers to shown in Fig. 4 to Fig. 8, when the utility model carries out braking state, starts pneumatic cylinder first, make pneumatic cylinder Gas drives space 281 by air inlet pipeline 50 into first, as shown in fig. 6, since the pressure in the first driving space 281 is more than Tap hole 291, therefore gas first can drive space 281 full of first, and after the first driving 281 gassy of space, such as Fig. 7 Shown, gas can be driven even into second in space 282 by tap hole 291 at this time, in the utility model embodiment, often One power brake 20 by stripper loop 29 setting, can avoid gas by air inlet pipeline 50 into fashionable gas thrust excessively The problem of concentrating, 22 offset activity of piston portion is caused to have some setbacks, gas saturation state is presented in the second driving space 282, and then drives Two 22 opposing bodies 10 of piston portion is made to promote along the axis of body 10 toward 12 direction of disc to clamp, at this time each power brake 20 flexible fastening piece 27 is in compression shape.

As shown in Figures 4 and 5, when two piston portions 22 clamp brake toward 12 direction of disc of high-speed rotation, due to limit Position device 30 makes two piston portions 22 and two brake linings 23 in /V not rotary state, thus two power brakes 20 piston portion 22 will not be rotated with the inertial rotation of disc 12, therefore two power brakes 20 can reach disc 12 Stop to brake immediately, and then offset error angle will not be generated in lathe process, the work(of accurate accurate machining can be reached Effect.

In addition, after braking state, air inlet pipeline 50 starts removal air pressure, the elasticity of two power brakes 20 27 gradual elastic reset of fixing piece so that two power brakes 20 are away from disc 12, and returns back to initial position.

Also, the utility model energy various aspects are used in lathe process board, milling machine machine table, complex milling machine and milling In vehicle compounding machine, and then effectively promote the multi-faceted practicability of the utility model.

Embodiment provided above is only to illustrate the utility model, not limiting the scope of the utility model. Such as various modifications or the variation that the utility model spirit is engaged in are not disobeyed, all belong to the scope that the utility model is intended to protection.

Claims (10)

1. a kind of shaft brake gear, which is characterized in that it includes：

One body rotates and is equipped with a shaft, and one end of the shaft is equipped with a disc；

Two power brakes are installed on the inside of the body, for being arranged in the shaft, two power brake dresses Put includes a fixed part and a piston portion respectively, and two piston portions of two fixed parts and this be combined with each other, and each fixed part is set In on the body, mutually towards the disc, which is located between two power brakes two piston portions；And

One limiting device is arranged between the body and two power brakes, each piston portion is made not rotate.

2. shaft brake gear as described in claim 1, which is characterized in that it is accommodating that two piston portions are respectively equipped at least one Slot, the limiting device include two locating parts, which corresponds at least one appearance for being placed in two piston portions respectively It puts in slot.

3. shaft brake gear as claimed in claim 2, which is characterized in that the quantity of an at least storage tank for each piston portion is Three, which radially extends towards the shaft, and three storage tanks are located on the outside of each piston portion, the /V The quantity of device is identical with the quantity of an at least storage tank for each piston portion.

4. shaft brake gear as claimed in claim 2, which is characterized in that two locating parts are mounted side by side in the body On, and the disc is located between two locating parts.

5. shaft brake gear as claimed in claim 2, which is characterized in that the depth of each storage tank is more than the thickness of each locating part Degree.

6. shaft brake gear as described in claim 1, which is characterized in that further include an inlet duct, provide this two The power that power brake clamps respectively toward the disc direction.

7. shaft brake gear as claimed in claim 6, which is characterized in that be respectively provided between each piston portion and each fixed part One driving space, the inlet duct have an air inlet pipeline, which is installed in each fixed part and is communicated in each driving Space.

8. shaft brake gear as claimed in claim 7, which is characterized in that each driving space is equipped with a stripper loop, the separation Each driving space is separated to form one first driving space and one second driving space, each stripper loop by ring has multiple tap holes, The first driving space is interconnected with the second driving space by these tap holes, which is communicated in first drive Dynamic space.

9. shaft brake gear as described in claim 1, which is characterized in that each piston portion is respectively provided with a room and an elasticity Fixing piece, each flexible fastening piece are placed in each room, and each flexible fastening piece fixes each piston portion and each fixed part screw lock.

10. shaft brake gear as claimed in claim 9, which is characterized in that each flexible fastening piece includes an elastic portion and one Screw part, for being arranged the elastic portion, each elastic portion is resisted against in each room each screw part, wherein, each elastic portion is spring.