CN201326671Y

CN201326671Y - Locking mechanism

Info

Publication number: CN201326671Y
Application number: CNU2008202122499U
Authority: CN
Inventors: 高云峰; 付晓辉; 王光能; 刘步军; 李雷生; 汤杰; 谢俊杰; 梁正学; 刘名华
Original assignee: SHENZHEN HAN'S PRECISION MACARONIS CO Ltd
Current assignee: Shenzhen Hans Electric Motor Co., Ltd.
Priority date: 2008-09-26
Filing date: 2008-09-26
Publication date: 2009-10-14
Anticipated expiration: 2018-09-26

Abstract

The utility model relates to a locking mechanism for performing stop lock to moving elements, wherein a bearing seat and a piston rod are fixed on a moveless object while a hydraulic pump station and a clamping device are fixed on a moving object, when the moving object requires movement, the clamping device supplies oil to the clamping device through an oil supply pipe of the hydraulic pump station; and the piston of the clamping device moves and drives a taper sleeve to move, compresses an elastic device, stretches a friction taper sleeve and loosens the piston rod; when the moving object requires stopping because of inertia or requires instant stopping because of some states, the hydraulic pump station stops discharging the oil to the clamping device and resets the elastic device so as to move the taper sleeve, and tightens the friction taper sleeve so as to lock the piston rod to achieve the locking of the piston rod. The locking mechanism is suitable for moving systems of large-scale overloading linear motors and has a brake function.

Description

A kind of locking mechanism

[technical field]

The utility model relates to and applying in the linear electric motor moving platform system, is to stop a kind of locking mechanism of locking of its moving element.

[background technique]

At present, in the linear electric motor moving platform system of linear motor driving, the general locking slide block that adopts pins stop locking or adopt the locking of partly stopping of electromagnetic brake locking mover of guide rail, but these locking mechanisms can only apply to the plateform system of small-sized low load, are not suitable for the linear electric motor moving platform system of large-scale heavy duty lotus.

[model utility content]

The utility model provides a kind of novel locking mechanism, and this mechanism can not only be applicable in the large-scale overweight load linear electric motor moving system, and have brake function.

The technological scheme that the utility model adopted is: a kind of locking mechanism, comprise: a piston rod, at least one bearing support, one hydraulic power unit, one clamp device, an and fuel supply line that connects this hydraulic power unit and this clamp device, described bearing support fixed piston rod, piston rod passes clamp device, described clamp device comprises the shell that runs through this piston rod that passes, be positioned at the elastic device of enclosure, be connected to the taper bushing of elastic device one end, the piston that contacts with taper bushing, be positioned at the friction Taper Pipe that taper bushing is inner and contact with taper bushing, wherein, the conical surface direction of described friction Taper Pipe outer wall is consistent with the conical surface direction of taper bushing inwall.

The utility model is by being fixed on bearing support and piston rod on the static object, hydraulic power unit and clamp device are fixed on the object of motion, when the object of motion need move, fuel supply line by hydraulic power unit is given the clamp device fuel feeding, the piston motion of clamp device, and promote taper bushing motion, pressure elasticity device, friction taper sleeve opens, and unclamps piston rod; When the object of motion need stop because of inertia or some state need stop immediately the time, hydraulic power unit is controlled to the clamp device emptying, and elastic device resets, make the taper bushing motion, and with the friction taper sleeve deflation, thereby pin piston rod, reach the function of pinning piston rod with this.The utility model is applicable in the large-scale overweight load linear electric motor moving system, and has brake function.

[description of drawings]

Fig. 1 is the stereogram of the utility model locking mechanism;

Fig. 2 is fixed on stereogram on the linear electric motor for the utility model locking mechanism;

Fig. 3 is the stereogram of the utility model locking mechanism on stationary object;

Fig. 4 is the stereogram of the utility model locking mechanism in moving object;

Fig. 5 is the explosive view of clamp device shown in Figure 4;

Fig. 6 is the three-dimensional cutaway view of clamp device shown in Figure 4;

Fig. 7 is the section plan of clamp device shown in Figure 4;

Fig. 8 is the utility model hydraulic schematic diagram;

Fig. 9 is the utility model electrical schematic diagram.

[embodiment]

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Consult Fig. 1 and Fig. 2 simultaneously, structural representation for the utility model locking mechanism, the utility model locking mechanism 100 is applicable in the large-scale overweight load linear electric motor moving system, and has a brake function, it comprises: be fixed on the piston rod 8 on the stator 200 (that is: actionless object) of linear electric motor, fix this piston rod 8, be positioned at piston rod 8 two ends, and run through the clutch shaft bearing seat 1 and second bearing support 2 of piston rod 8, and be fixed on clamp device 14 on the linear motor rotor 300 (that is: the object of motion), piston rod 8 passes this clamp device 14, and this locking mechanism 100 also can be used in the general motion system certainly.

As Fig. 1 and Fig. 3, the two ends of described piston rod 8 are arranged with axle sleeve 6, and described

bearing support

1,2 is positioned at outside the axle sleeve 6, and by a plurality of jackscrews 16 bearing

support

1,2 is fixed on the axle sleeve 6; Described axle sleeve 6 outer pressing plate 3 and the nuts 5 of being provided with prevent that by pressing plate 6 and nut 5 piston rod 8 and axle sleeve 6 from relatively moving; Described bearing

support

1,2 top and bottom are fixed with gland 4 respectively and adjust cushion block 7.

As Fig. 1 and Fig. 4, this locking mechanism 100 also comprises the oil pump bracket 9 that is fixed on the linear motor rotor 300, be installed in hydraulic power unit 10 on the oil pump bracket 9, connect a fuel supply line 24, first flange 11 that is fixed on clamp device 14 two ends and second flange 15, flange shaft bearing 12 and the wear-resistant ring 13 of this hydraulic power unit 10 and clamp device 14.

Described oil pump bracket 9 is fixed on the object of motion, and promptly linear motor rotor 300; Hydraulic power unit 10 is installed on the oil pump bracket 9, again first,

second flange

11,15 is installed in the two ends of clamp device 14, and install together on the online electric mover 300, in the flange shaft bearing 12 of more wear-resistant ring 13 being packed into, flange shaft bearing 12 is assemblied in 11,15 liang of end flange of first, second flange.

As Fig. 5 to Fig. 7, described clamp device 14 comprises shell 18, these shell 18 inside are provided with first end cap 17, elastic device 18, taper bushing 20, piston 21, friction Taper Pipe 22 and second end cap 23 in regular turn, and piston rod 8 passes first end cap 17, elastic device 18, taper bushing 20, piston 21, friction Taper Pipe 22 and second end cap 23 in regular turn, wherein, described elastic device 18 is a spring, and these elastic device 18 1 ends are set on first end cap 17, and the other end contacts with taper bushing 20; Described taper bushing 20 inwalls are taper; Described piston 21 contacts with taper bushing 20; The outer wall of described friction Taper Pipe 22 is taper, the leading portion of piston rod 8 is resilient sheet-like, and piston rod 8 is pinned by this friction Taper Pipe 22, this friction Taper Pipe 22 is fixed on second end cap 23, and be installed with in the inside of taper bushing 20, the conical surface direction of described friction Taper Pipe 22 outer walls is consistent with the conical surface direction of taper bushing 20 inwalls.

During installation, at first in regular turn first end cap 17, elastic device 18, taper bushing 20, piston 21, friction Taper Pipe 22 and second end cap 23 are installed in the shell 18, install clamp device 14 with this; Then oil pump bracket 9 is fixed on the mover 300 of linear electric motor, hydraulic power unit 10 is installed on the oil pump bracket 9, again first,

second flange

11,15 is installed in the two ends of clamp device 14, and be installed in together on the object of motion, in the flange shaft bearing 12 of more wear-resistant ring 13 being packed into, flange shaft bearing 12 is assemblied in 11,15 liang of end flange of first, second flange; Then piston rod 8 is passed clamp device 14.The friction Taper Pipe 22 of clamp device 14 pins piston rod 8 simultaneously.

Then axle sleeve 6 is inserted at piston rod 8 two ends, first,

second bearing support

1,2 is installed on the stator 200 of linear electric motor, utilize and adjust cushion block 7 and jackscrew 16 adjustment piston rods 8 two ends, make piston rod 8 coaxial with clamp device 14; Cover gland 4 again, load onto pressing plate 3, piston rod 8 two ends are fixed with nut 5.

When linear electric motor need moving linearly, fuel supply line 24 by hydraulic power unit 10 is given clamp device 14 fuel feeding, piston 21 motions of clamp device 14, and promotion taper bushing 20 motions, pressure elasticity device 19, because friction taper sleeve 22 is installed with the inside at taper bushing 20, and the conical surface direction of friction Taper Pipe 22 outer walls is consistent with the conical surface direction of taper bushing 20 inwalls, when taper bushing 20 extruding elastic devices 19 travel forward, taper bushing 20 becomes big with the internal diameter of the surface of contact of friction taper sleeve 22, and that friction taper sleeve 22 is fixed on second end cap 23 is motionless, so friction taper sleeve 22 opens, and unclamp piston rod 8, this moment linear electric motor mover 300 moving linearly on the stator 200 of linear electric motor.

When the object of motion need stop because of inertia or some state need stop immediately the time, clamp device 14 emptyings are given in hydraulic power unit 10 controls, elastic device 19 resets, taper bushing 20 is moved to piston 21 directions, because the conical surface direction of friction Taper Pipe 22 outer walls is consistent with the conical surface direction of taper bushing 20 inwalls, thus the internal diameter of taper bushing 20 and friction taper sleeve 22 surface of contact diminish, thereby with friction taper sleeve 22 deflations, and then friction taper sleeve 22 pinning piston rods 8, reach the function of pinning piston rod 8 with this.

The utility model is applicable in the large-scale overweight load linear electric motor moving system, and has brake function.

Mainly be made up of hydraulic power unit 400, locking device 500 and pressure relay 600 as locking mechanism hydraulic system among Fig. 8, this schematic diagram has been realized the system pressure overload protection; Electric control reversing, pressurize; Movement velocity is adjustable; Pressure feedback signal; Characteristics such as working state feedback signal.

In Fig. 9 electrical principle, by safety fuse cutout (FU1～4), circuit breaker (QF1), contactor (KM1), transformer (TC), power panel 24V, push-button switch (SB1～3), auxiliary reclay (KA1～3), pressure relay (KP), form near switch (SP), tutorial light (HL1～3).In the control procedure, SB1 presses, electric motor starting, and oil pump work, tutorial light 3 is bright, and when tutorial light 2 was bright, clamp device unclamped piston rod, and motor stops, and when tutorial light 3 went out, motor started once more, and when tutorial light 2 was bright, motor stopped.Pressure is kept in the such periodic duty of oil pump, and clamp device unclamps piston rod always, and moving object is kept in motion; After moving object stops fully, press reset button SB3, coil YV1 gets electric, the beginning emptying, clamp device latching ram bar unclamps SB3 then, maintains the lock status.

Claims

1. locking mechanism, it is characterized in that, comprise: a piston rod, at least one bearing support, one hydraulic power unit, one clamp device, an and fuel supply line that connects this hydraulic power unit and this clamp device, described bearing support fixed piston rod, piston rod passes clamp device, described clamp device comprises the shell that runs through this piston rod that passes, be positioned at the elastic device of enclosure, be connected to the taper bushing of elastic device one end, the piston that contacts with taper bushing, be positioned at the friction Taper Pipe that taper bushing is inner and contact with taper bushing, wherein, the conical surface direction of described friction Taper Pipe outer wall is consistent with the conical surface direction of taper bushing inwall.

2. locking mechanism as claimed in claim 1 is characterized in that: described bearing support and piston rod are fixed on the stator of linear electric motor, and described clamp device is fixed on the mover of linear electric motor.

3. locking mechanism as claimed in claim 1 is characterized in that: described clamp device also is provided with first end cap and second end cap that is positioned at the shell two ends, and described elastic device is connected on first end cap, and described friction taper sleeve is fixed on second end cap.

4. locking mechanism as claimed in claim 1 is characterized in that: also comprise first flange and second flange that are fixed on the clamp device two ends.

5. locking mechanism as claimed in claim 1 is characterized in that: hydraulic power unit is fixed on the oil pump bracket.

6. locking mechanism as claimed in claim 1 is characterized in that: described bearing support comprises the clutch shaft bearing seat and second bearing support that is fixed on the piston rod two ends.

7. locking mechanism as claimed in claim 1 is characterized in that: described piston rod (8) be arranged with at least one axle sleeve, described bearing seat is outside axle sleeve.

8. locking mechanism as claimed in claim 1 is characterized in that: also comprise the adjustment cushion block and the jackscrew that are fixed on the bearing support.

9. locking mechanism as claimed in claim 1 is characterized in that: described elastic device is a spring.