CN204224013U - Anti-falling safety device for construction lift - Google Patents
Anti-falling safety device for construction lift Download PDFInfo
- Publication number
- CN204224013U CN204224013U CN201420564279.1U CN201420564279U CN204224013U CN 204224013 U CN204224013 U CN 204224013U CN 201420564279 U CN201420564279 U CN 201420564279U CN 204224013 U CN204224013 U CN 204224013U
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- Prior art keywords
- pawl assembly
- brake pawl
- clump weight
- safety device
- wheel shaft
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Abstract
The utility model discloses a kind of stable, the Anti-falling safety device for construction lift of abnormal sound and unexpecred braking can not be sent, comprise inner casing, brake pawl assembly and gear wheel shaft; Described brake pawl assembly is arranged on gear wheel shaft, and is positioned at the inside of inner casing; The centrifugal seat of described brake pawl assembly is provided with clump weight and/or groove, and described clump weight and/or groove can make the center of gravity of brake pawl assembly be on the axle center of gear wheel shaft.By arranging in centrifugal seat after on axle center that clump weight and/or groove make the center of gravity of brake pawl assembly be in gear wheel shaft, brake pawl assembly can not produce shake, send abnormal sound, it also avoid brake pawl assembly to shake the application force causing centrifugal-block to overcome spring and outwards throw away the unexpecred braking caused simultaneously, achieve Anti-falling safety device for construction lift and safely and steadily run.
Description
Technical field
The utility model relates to a kind of safety, is specifically related to a kind of Anti-falling safety device for construction lift.
Background technology
Anti-falling safety device for construction lift is widely used in the realm of building construction, and it is the important guarantee that building hoist carries out keeping the safety in production.Anti-falling safety device for construction lift can be braked when elevator craning cage running velocity exceedes command speed, avoids elevator craning cage to fall.
Existing Anti-falling safety device for construction lift running state is usually unstable, and when elevator craning cage normally runs, Anti-falling safety device for construction lift often can send abnormal sound, and time have the situation of unexpecred braking to occur; Cause noise puzzlement not only to staff and neighbouring resident, and bring unnecessary trouble to construction production.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of stable, can not send the Anti-falling safety device for construction lift of abnormal sound and unexpecred braking.
The technical solution adopted for the present invention to solve the technical problems is: Anti-falling safety device for construction lift, comprises inner casing, brake pawl assembly and gear wheel shaft; Described brake pawl assembly is arranged on gear wheel shaft, and is positioned at the inside of inner casing; The centrifugal seat of described brake pawl assembly is provided with clump weight and/or groove, and described clump weight and/or groove can make the center of gravity of brake pawl assembly be on the axle center of gear wheel shaft.
Further, described clump weight is at least two pieces, and the quality of every block clump weight is equal.
Further, the quality of described clump weight is five grams.
The beneficial effects of the utility model are: by arranging in centrifugal seat after on axle center that clump weight and/or groove make the center of gravity of brake pawl assembly be in gear wheel shaft, brake pawl assembly would not produce shake when rotating, send abnormal sound, it also avoid brake pawl assembly to shake the application force causing centrifugal-block to overcome spring and outwards throw away the unexpecred braking caused simultaneously, achieve Anti-falling safety device for construction lift and safely and steadily run.The clump weight that multiple quality is equal, so that the adjustment of brake pawl assembly center of gravity, can improve regulated efficiency.
Accompanying drawing explanation
Fig. 1 is enforcement structural representation of the present utility model;
Fig. 2 is cross-sectional view of the present utility model;
Fig. 3 is the front elevation that static balance mode of operation surveyed by brake pawl assembly;
Fig. 4 is the left view that static balance mode of operation surveyed by brake pawl assembly;
Be labeled as in figure: inner casing 1, brake pawl assembly 2, centrifugal seat 21, clump weight 211, groove 212, centrifugal-block 22, spring 23, adjust bar 24, jam nut 25, straight pin 26, gear wheel shaft 3, gear 31, conical shell body 4, disk spring 5, nut 6, tail-hood 7, end cap 8, Horizontal balancing device 9, axle 91.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, Anti-falling safety device for construction lift, comprises inner casing 1, brake pawl assembly 2 and gear wheel shaft 3; Described brake pawl assembly 2 is arranged on gear wheel shaft 3, and is positioned at the inside of inner casing 1; Described brake pawl assembly 2 comprises centrifugal seat 21, centrifugal-block 22, spring 23, adjust bar 24, jam nut 25 and straight pin 26; Installation between each parts of brake pawl assembly 2 connects and belongs to prior art, and this does not repeat; Described centrifugal seat 21 is provided with clump weight 211 and/or groove 212, described clump weight 211 and/or groove 212 can make the center of gravity of brake pawl assembly 2 be on the axle center of gear wheel shaft 3.
For the ease of the adjustment of brake pawl assembly 2 center of gravity, improve regulated efficiency, described clump weight 211 is at least two pieces, and the quality of every block clump weight 211 is equal.Concrete, the quality of described clump weight 211 is five grams.
The principle of work of Anti-falling safety device for construction lift: when elevator craning cage normally runs, the gear 31 be arranged on gear wheel shaft 3 engages with the tooth bar on building hoist, and gear wheel shaft 3 rotates along with the rising of elevator craning cage or decline; When elevator craning cage runs in command speed, the centrifugal-block 22 in brake pawl assembly 2 sticks together with centrifugal seat 21 under the effect of spring 23.When the running velocity of elevator craning cage exceeds command speed, the application force that centrifugal-block 22 overcomes spring 23 outwards throws away, the tip of centrifugal-block 22 embeds in the groove structure of inner casing 1 inside face, brake pawl assembly 2 drives inner casing 1 to rotate together, and the nut 6 being contained in inner casing 1 axle head axially moves thereupon and compresses disk spring 5; Under the antagonistic force of disk spring 5, inner casing 1 is squeezed on the cone-shaped inner surface of conical shell body 4, and along with the thrust of friction face increases gradually, lock torque also strengthens gradually simultaneously, until elevator craning cage is out of service, thus reaches the object of gradual braking; While braking, safety switch opens the electrical source of power cutting off elevator craning cage actuating device automatically.
Contriver tests discovery, existing Anti-falling safety device for construction lift running state is usually unstable, send abnormal sound, and time have the reason of unexpecred braking to be: because brake pawl assembly 2 is by centrifugal seat 21, centrifugal-block 22, spring 23, adjust bar 24, multiple parts such as jam nut 25 and straight pin 26 assemble, due to the assembly problem in the accuracy of manufacture problem of parts and installation process, its actual center gravity of non-uniform mass of brake pawl assembly 2 entirety is not in the axis hole center in centrifugal seat 21, axis hole center after installing gear wheel shaft 3 in centrifugal seat 21 is in the axle center of gear wheel shaft 3, after Anti-falling safety device for construction lift has installed eccentric brake pawl assembly 2, the brake pawl assembly 2 rotated along with the rising of elevator craning cage or decline can produce shake, Anti-falling safety device for construction lift is run unstable, and sends abnormal sound, the application force that the shake of brake pawl assembly 2 often causes centrifugal-block 22 to overcome spring 23 outwards throws away, and the tip of centrifugal-block 22 is embedded in the groove structure of inner casing 1 inside face, makes Anti-falling safety device for construction lift unexpecred braking.By arranging in centrifugal seat 21 after on axle center that clump weight 211 and/or groove 212 make the center of gravity of brake pawl assembly 2 be in gear wheel shaft 3, shake would not be produced when brake pawl assembly 2 rotates, send abnormal sound, it also avoid the unexpecred braking of anti-falling safety device simultaneously, achieve Anti-falling safety device for construction lift and safely and steadily run.
Embodiment 1
A, measure the brake pawl assembly 2 assembled actual center gravity and mark;
B, in centrifugal seat 21, make a straight line L through the actual center gravity of brake pawl assembly 2 and the axis hole center of centrifugal seat 21, the axis hole center of centrifugal seat 21 is divided into linear portion L the line segment L1 of the actual center gravity comprising brake pawl assembly 2 and does not comprise the line segment L2 of actual center gravity of brake pawl assembly 2;
C, in the centrifugal seat 21 at line segment L2 place, paste one or more standard magnet block, until the axis hole center superposition of the actual center gravity of brake pawl assembly 2 and centrifugal seat 21;
D, the clump weight 211 of equal quality is set pasting magnet piece place; In like manner, the position that also can be pasted with magnet piece place symmetry on line segment L1 with line segment L2 arranges groove 212, makes the quality of removal material equal to paste the weight of magnet piece; Can also groove 212 be set at line segment L1, clump weight 211 is set on line segment L2 simultaneously, make the center of gravity of brake pawl assembly 2 be in the axis hole center of centrifugal seat 21; Certainly, in centrifugal seat 21, other positions arrange clump weight 211 and/or groove 212 also can make the center of gravity of brake pawl assembly 2 be in the axis hole center of centrifugal seat 21;
E, the brake pawl assembly 2 center of gravity being in centrifugal seat 21 axis hole center are installed on this Anti-falling safety device for construction lift.
Embodiment 2
As shown in Figure 3 and Figure 4:
A, the brake pawl assembly 2 assembled is installed on static balancing apparatus; Wherein, axle 91 is through the axis hole in centrifugal seat 21;
B, brake pawl assembly 2 is respectively rotated several times to left and right both direction, to determine overbalance direction;
C, on brake pawl assembly 2, paste standard magnet piece, until rolling brake pawl assembly 2 to optional position all balances;
D, the clump weight 211 of equal quality is set or groove 212 is set being pasted with on symmetrical position, the axis hole center in magnet piece place and centrifugal seat 21 pasting magnet piece place; Wherein, arrange groove 212 remove material quality equal to paste the weight of magnet piece; Can also clump weight 211 and groove 212 be set in centrifugal seat 21 simultaneously, all balance as long as make brake pawl assembly 2 turn to optional position;
E, the brake pawl assembly 2 setting clump weight 211 and/or groove 212 is installed on this Anti-falling safety device for construction lift;
Wherein, several times are generally 5 ~ 8 times; The quality of standard magnet block is generally five grams.
Claims (3)
1. Anti-falling safety device for construction lift, comprises inner casing (1), brake pawl assembly (2) and gear wheel shaft (3); Described brake pawl assembly (2) is arranged on gear wheel shaft (3), and is positioned at the inside of inner casing (1); It is characterized in that: the centrifugal seat (21) of described brake pawl assembly (2) is provided with clump weight (211) and/or groove (212), described clump weight (211) and/or groove (212) can make the center of gravity of brake pawl assembly (2) be on the axle center of gear wheel shaft (3).
2. Anti-falling safety device for construction lift as claimed in claim 1, is characterized in that: described clump weight (211) is at least two pieces, and the quality of every block clump weight (211) is equal.
3. Anti-falling safety device for construction lift as claimed in claim 2, is characterized in that: the quality of described clump weight (211) is five grams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564279.1U CN204224013U (en) | 2014-09-28 | 2014-09-28 | Anti-falling safety device for construction lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564279.1U CN204224013U (en) | 2014-09-28 | 2014-09-28 | Anti-falling safety device for construction lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204224013U true CN204224013U (en) | 2015-03-25 |
Family
ID=52922131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420564279.1U Active CN204224013U (en) | 2014-09-28 | 2014-09-28 | Anti-falling safety device for construction lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204224013U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128770A (en) * | 2017-05-11 | 2017-09-05 | 合肥工业大学 | One kind is used for vertical-lift elevator anti-falling self-locking device |
| CN110093476A (en) * | 2019-06-18 | 2019-08-06 | 潍坊峻林冶金工程技术有限公司 | A kind of converter oxygen gun lift cart falling-proof safety device |
| CN111559683A (en) * | 2020-05-18 | 2020-08-21 | 黄松檀 | Elevator with power-off braking friction type brake with compact structure |
-
2014
- 2014-09-28 CN CN201420564279.1U patent/CN204224013U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128770A (en) * | 2017-05-11 | 2017-09-05 | 合肥工业大学 | One kind is used for vertical-lift elevator anti-falling self-locking device |
| CN110093476A (en) * | 2019-06-18 | 2019-08-06 | 潍坊峻林冶金工程技术有限公司 | A kind of converter oxygen gun lift cart falling-proof safety device |
| CN111559683A (en) * | 2020-05-18 | 2020-08-21 | 黄松檀 | Elevator with power-off braking friction type brake with compact structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |