CN101703381B

CN101703381B - Mechanical overspeed braking device

Info

Publication number: CN101703381B
Application number: CN2009102336529A
Authority: CN
Inventors: 高智鹏
Original assignee: Boyu (wuxi) Technology Co Ltd
Current assignee: Boyu (wuxi) Technology Co Ltd
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2011-11-02
Anticipated expiration: 2029-09-30
Also published as: CN101703381A

Abstract

The invention relates to a window cleaning machine, in particular to a mechanical overspeed braking device. In the technical scheme, the mechanical overspeed braking device has a structure that a bottom board is hinged with a first connection block and a second connection block by a second pin roll, and the middle part of the connection blocks is hinged with a brake block by a first pin roll; the end part of the first connection block is hinged with a connection board by a fourth pin roll, the first end of the connection board is hinged with a first end of a brace rod by a sixth pin roll, and the second end of the connection board is hinged with a first end of a pull rod by a fifth pin roll; the second end of the brace rod is hinged with the end part of the second connection block by a third pin roll; the second end of the pull rod is hinged with the second end of the brace rod and a slide block, and a locking mechanism is arranged between the slide block and the second end of the brace rod. The mechanical overspeed braking device is characterized in that the third pin roll is provided with a deflector rod, the first end of which is provided with a roller wheel and the second end is connected with the locking mechanism. By using the device, a winding drum can be automatically braked when abnormally rotating.

Description

Mechanical overspeed braking device

Technical field

The present invention relates to a kind of window cleaning equipment, specifically a kind of mechanical overspeed braking device.

Background technology

The drum brake device uses electromagnetic type brake (band-type brake) form at present mostly, directly brakes in the time of itself can not being controlled at cylinder linear velocity hypervelocity.

Summary of the invention

The formula overspeed braking device that the objective of the invention is to design a mechanism, utilize this device after, can when unusual the rotation appears in reel, realize Braking mode.

According to technical scheme provided by the invention, described mechanical overspeed braking device comprises base plate and utilizes second bearing pin to be articulated in first contiguous block and second contiguous block at base plate two ends, utilizes the hinged brake shoes of first bearing pin in the inboard, middle part of every contiguous block; Utilize the middle part of the 4th bearing pin and connecting plate hinged in the end of first contiguous block, first end of connecting plate utilizes first end of the 6th bearing pin and strut hinged, and second end of connecting plate utilizes first end of the 5th bearing pin and pull bar hinged; Second end of strut utilizes the end of the 3rd bearing pin and second contiguous block hinged; Extension spring is set on pull bar, and second end of pull bar and second end and the slide block of strut are hinged, between second end of slide block and strut locking mechanism are set; It is characterized in that: on the 3rd bearing pin driving lever is set, first end of described driving lever is provided with roller, and second end of driving lever is connected with described locking mechanism; And described the 3rd bearing pin is near second end of described driving lever.

In described locking mechanism, first end of L shaped gag lever post and second end of described driving lever are hinged, and second end of L shaped gag lever post has hook; On described slide block pin is set, when described locking mechanism was in the lock state, described hook colluded on described pin.On described slide block cushion block is set, described pin is positioned at the end of cushion block.

Elasticity contiguous block and elastic press are set on pull bar, first flexible block and second flexible block are arranged on the pull bar of elastic press side, described extension spring is positioned on the pull bar between described first flexible block and second flexible block.Form the space that can hold reel in the space that base plate, first contiguous block, strut and second contiguous block surround, impeller is arranged on reel, described roller is attached to the edge of described impeller.Second end at described driving lever is provided with balancing weight.

Second end at strut is provided with the extension that extends to a side of pull bar, second end of described pull bar utilizes the 7th bearing pin and extension hinged, described slide block is articulated on described the 7th bearing pin, is provided for stirring the spanner that slide block rotates around the 7th bearing pin on described slide block.

Whether this mechanism comes the linear velocity of comparison cylinder too fast by the fricting movement of the profile of tooth ring on balancing weight device and cylinder limit; If surpass setting range, mechanism breaks off relations position-limit mechanism friction plate is tightened up, and simultaneously travel switch is placed off-state, and reducing motor is out of service, makes drum braking with working along both lines.

Advantage of the present invention is: 1, whether this device comes the linear velocity of comparison cylinder too fast by the fricting movement of the profile of tooth ring on balancing weight and cylinder limit; If surpass setting range, mechanism breaks off relations position-limit mechanism friction plate is tightened up, and simultaneously travel switch is placed off-state, and reducing motor is out of service, makes drum braking with working along both lines.The structure of mechanism is compact, uniqueness, and actual motion is reliably steady.

Description of drawings

Fig. 1 is a structure chart of the present invention.

Fig. 2 is the A-A view of Fig. 3.

Fig. 3 is the vertical view of Fig. 1.

Fig. 4 is a work schematic diagram of the present invention.

Fig. 5 is that the K of Fig. 2 is to view.

Fig. 6 is that the H of Fig. 5 is to view.

Fig. 7 is the B-B view of Fig. 3.

The specific embodiment

Among the figure, 1, base plate, 2, first bearing pin, 3, second bearing pin, 4, the 3rd bearing pin, 5, driving lever, 6, first contiguous block, 7, brake shoes, 8, connecting plate, 9, the 4th bearing pin, 10, the 5th bearing pin, 11, the 8th bearing pin, 15, the 6th bearing pin, 16, strut, 17, the elasticity contiguous block, 18, elastic press, 19, first flexible block, 20, spring, 21, second flexible block, 22, pull bar, 23, slide block, 24, cushion block, 25, bolt, 26, pin, 27, hook, 28, gag lever post, 32, back-up ring, 34, the 7th bearing pin, 35, shaft block ring, 36, bolt, 37, packing ring, 38, branch sleeve, 40, balancing weight, 41, circlip for shaft, 42, spanner, 50, roller, 51, impeller, 52, reel, 55, extension, 61, second contiguous block.

As shown in the figure: described mechanical overspeed braking device, comprise base plate 1 and utilize second bearing pin 3 to be articulated in first contiguous block 6 and second contiguous block 61 at base plate 1 two ends, utilize first bearing pin, 2 hinged brake shoes 7 in the inboard, middle part of every contiguous block; Utilize the 4th bearing pin 9 hinged with the middle part of connecting plate 8 in the end of first contiguous block 6, first end of connecting plate 8 utilizes the 6th bearing pin 15 hinged with first end of strut 16, and second end of connecting plate 8 utilizes the 5th bearing pin 10 hinged with first end of pull bar 22; Second end of strut 16 utilizes the end of the 3rd bearing pin 4 and second contiguous block 61 hinged; Extension spring 20 is set on pull bar 22, and second end of pull bar 22 and second end of strut 16 and slide block 23 are hinged, between second end of slide block 23 and strut 16 locking mechanism are set; It is characterized in that: on the 3rd bearing pin 4 driving lever 5 is set, first end of described driving lever 5 is provided with roller 50, and second end of driving lever 5 is connected with described locking mechanism; And described the 3rd bearing pin 4 is near second end of described driving lever 5.

In described locking mechanism, first end of L shaped gag lever post 28 and second end of described driving lever 5 are hinged, and second end of L shaped gag lever post 28 has hook 26; On described slide block 23 pin 27 is set, when described locking mechanism was in the lock state, described hook 26 colluded on described pin 27.

On described slide block 23 cushion block 24 is set, described pin 27 is positioned at the end of cushion block 24.

Elasticity contiguous block 17 and elastic press 18 are set on pull bar 22, first flexible block 19 and second flexible block 21 are arranged on the pull bar 22 of elastic press 18 sides, and described extension spring 20 is positioned on the pull bar 22 of 21 of described first flexible block 19 and second flexible blocks.

Form the space that can hold reel 52 in the space that base plate 1, first contiguous block 6, strut 16 and second contiguous block 61 surround, impeller 51 is arranged on reel 52, described roller 50 is attached to the edge of described impeller 51.

Second end at described driving lever 5 is provided with balancing weight 40.

Second end at strut 16 is provided with the extension 55 that extends to a side of pull bar 22, second end of described pull bar 22 utilizes the 7th bearing pin 34 hinged with extension 55, described slide block 23 is articulated on described the 7th bearing pin 34, is provided for stirring the spanner 42 that slide block 23 rotates around the 7th bearing pin 34 on described slide block 23.

Fig. 7 is the structure chart of balancing weight device, and it carries out specialized designs according to the designed pulling force of spring and the mechanics principle of connecting rod thereof to balancing weight, makes it that position-limit mechanism can be broken off relations.

When reel 52 during because of high speed rotating out of control, the impeller 51 that rotates with reel 52 can hold up the roller 51 that is attached to wave 51 surfaces, driving lever 5 is clockwise rotated around the 3rd bearing pin 4, the L shaped gag lever post 28 that drive is positioned at driving lever (5) second ends rotates counterclockwise around its 8th bearing pin 11, makes that the hook 27 on L shaped gag lever post 28 second ends breaks away from pin 27; After breaking away from pin 27, extension spring 20 is just tightened up, driving connecting plate 8 by pull bar 22 clockwise rotates around the 6th bearing pin 15, driving first contiguous block 6 by connecting plate 8 clockwise rotates around its second bearing pin 3, second contiguous block 61 is also rotated counterclockwise around its second bearing pin 3, first contiguous block 6 and second contiguous block 61 are closed up, finally be with two brake shoes 7 to be pressed on the reel 52, reel 52 is braked, seen state shown in Fig. 1,2.When normal operating conditions, catch spanner 42 to pressing down with hand earlier, drive cushion block 24 and slide block 23 and pin 27 and move down, pin 27 is buckled on the hook 26; In the process of pressing, under the effect of pull bar 22, contiguous block 8 drives first contiguous blocks 6 and second contiguous block 61 to counter-rotation, makes brake shoes 7 disengaging reels 52, reel 52 pull rope of can reeling smoothly.

Claims

1. mechanical overspeed braking device that is used for window cleaning equipment, comprise base plate (1) and utilize second bearing pin (3) to be articulated in first contiguous block (6) and second contiguous block (61) at base plate (1) two ends, utilize the hinged brake shoes of first bearing pin (2) (7) in the inboard, middle part of every contiguous block; Utilize the 4th bearing pin (9) hinged with the middle part of connecting plate (8) in the end of first contiguous block (6), first end of connecting plate (8) utilizes the 6th bearing pin (15) hinged with first end of strut (16), and second end of connecting plate (8) utilizes the 5th bearing pin (10) hinged with first end of pull bar (22); Second end of strut (16) utilizes the 3rd bearing pin (4) hinged with the end of second contiguous block (61); Extension spring (20) is set on pull bar (22), and second end and the slide block (23) of second end of pull bar (22) and strut (16) are hinged, between second end of slide block (23) and strut (16) locking mechanism are set; It is characterized in that: driving lever (5) is set on the 3rd bearing pin (4), and first end of described driving lever (5) is provided with roller (50), and second end of driving lever (5) is connected with described locking mechanism; And described the 3rd bearing pin (4) is near second end of described driving lever (5).

2. be used for the mechanical overspeed braking device of window cleaning equipment according to claim 1, it is characterized in that: in described locking mechanism, second end of first end of L shaped gag lever post (28) and described driving lever (5) is hinged, and second end of L shaped gag lever post (28) has hook (26); Pin (27) is set on described slide block (23), and when described locking mechanism was in the lock state, described hook (26) colluded on described pin (27).

3. as being used for the mechanical overspeed braking device of window cleaning equipment as described in the claim 2, it is characterized in that: cushion block (24) is set on described slide block (23), and described pin (27) is positioned at the end of cushion block (24).

4. the mechanical overspeed braking device that is used for window cleaning equipment according to claim 1, it is characterized in that: elasticity contiguous block (17) and elastic press (18) are set on pull bar (22), on the pull bar (22) of elastic press (18) side, there are first flexible block (19) and second flexible block (21), described extension spring (20) to be positioned on the pull bar (22) between described first flexible block (19) and second flexible block (21).

5. the mechanical overspeed braking device that is used for window cleaning equipment according to claim 1, it is characterized in that: in the space that base plate (1), first contiguous block (6), strut (16) and second contiguous block (61) surround, form the space that can hold reel (52), impeller (51) is arranged on reel (52), and described roller (50) is attached to the edge of described impeller (51).

6. be used for the mechanical overspeed braking device of window cleaning equipment according to claim 1, it is characterized in that: second end at described driving lever (5) is provided with balancing weight (40).

7. the mechanical overspeed braking device that is used for window cleaning equipment according to claim 1, it is characterized in that: second end at strut (16) is provided with the extension (55) that extends to a side of pull bar (22), second end of described pull bar (22) utilizes the 7th bearing pin (34) and extension (55) hinged, described slide block (23) is articulated on described the 7th bearing pin (34), is provided for stirring the spanner (42) that slide block (23) rotates around the 7th bearing pin (34) on described slide block (23).