CN202594560U - Safety falling protector for industrial elevator - Google Patents
Safety falling protector for industrial elevator Download PDFInfo
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- CN202594560U CN202594560U CN201220225523.2U CN201220225523U CN202594560U CN 202594560 U CN202594560 U CN 202594560U CN 201220225523 U CN201220225523 U CN 201220225523U CN 202594560 U CN202594560 U CN 202594560U
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- threaded shaft
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- brake
- axle
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- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000001141 propulsive effect Effects 0.000 description 1
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Abstract
The utility model discloses a safe falling protector for industrial elevator, including box and the positive and negative screw thread axle that runs through the box, be equipped with brake equipment and axle rotation drive arrangement on the positive and negative screw thread axle, positive and negative screw thread axle one end is equipped with the rotation of axle rotation positioner for controlling positive and negative screw thread axle, the axle rotation drive arrangement drives positive and negative screw thread axle rotation when axle rotation positioner releases positive and negative screw thread axle; the surface of positive and negative screw shaft is provided with forward screw thread and reverse screw thread respectively, brake equipment includes two brake components, adopts threaded connection between brake component and the positive and negative screw shaft, and when positive and negative screw shaft rotated under the drive of axle rotary drive device, two brake components were close to gradually. The utility model discloses a gradual braking, the braking is steady, to the lift guide rail not damaged, the good reliability, sensitivity is high, fully guarantees personnel and property safety in the lift.
Description
Technical field
The utility model relates to a kind of safety device of elevator machinery, more specifically, relates to a kind of industrial elevator and uses safety anti-falling device.
Background technology
Building hoist is a kind of employing rack-and-gear engagement system or rope hoisting mode; Make cage make vertical or banking motion; Machinery in order to conveying personnel and material; Be mainly used in the construction and the finishing of skyscraper, can also be as the vertical transportation machinery of the long-term use of warehouse, harbour, dock, high tower, chimney stack.The steel wire rope type building hoist is a kind of employing rope hoisting mode, makes cage make the machinery of perpendicular movement up and down along guide rail, in order to conveying personnel or material.
Disconnected rope anti-dropping safety device is a kind of safety device because of the instantaneous braking of hoist ropes break, is the very important safety facilities of building hoist.This device must be swift in motion flexibly, accurately and reliably, and reset and keep in repair easily, can not reset automatically or electronic.Whether this device technique is advanced, reliable, is directly connected to user's security production, directly influences the safety of personnel, goods, elevator itself.For prevent that elevator from occurring like wire cable rupture, winch brake failure or the unexpected generation of former thereby the cage falling accident that causes such as have a power failure in operational process, it is most important to design a kind of safe and reliable rope broken protector.
At present, the disconnected rope of building hoist anti-dropping safety device press brake portion structure difference, roughly is divided into 3 types of sliding wedge type, eccentric wheel (piece) formula and clamp (pin) formulas.The more employing velocity limiter of the safety guard of these type building hoists promptly meets or exceeds the action of velocity limiter specified action speed when speed drg when the overspeed momentary velocity value of elevator, and cage is stopped on guide rail bracket or made the cage slip.Because the braking force size is uncontrollable, exist stopping distance short, action is fierce, impacts very greatly, and intensity and durability aspect are not ideal, and braking has error, maintenance inconvenience, shortcomings such as maintenance cost height.
The utility model content
The utility model purpose: the utility model technical matters to be solved is the deficiency to prior art, provides a kind of industrial elevator to use safety anti-falling device.
In order to solve the problems of the technologies described above; The utility model discloses a kind of industrial elevator and use safety anti-falling device; The positive and negative threaded shaft that comprises casing and run through casing; Said positive and negative threaded shaft is provided with brake gear and axle rotating driving device, and said positive and negative threaded shaft one end is provided with the rotation that a rotary positioning apparatus is used to control positive and negative threaded shaft, and said axle rotating driving device drives positive and negative threaded shaft rotation when the axle rotary positioning apparatus discharges positive and negative threaded shaft.
The surface of said positive and negative threaded shaft is respectively arranged with forward screw thread and reverse thread; Said brake gear comprises two brake members; Adopt between brake member and the positive and negative threaded shaft to be threaded, when positive and negative threaded shaft rotates under the drive of axle rotating driving device, two brake member gradually near.
In the utility model, said brake member is provided with spoke hole, is provided with brake shoes in the spoke hole, and said spoke hole both sides are provided with oblique chute, and said brake shoes both sides and said oblique chute are adaptive.Owing to adopt oblique chute design, in the process of brake shoes upward movement, the spacing between two brake shoes can be more and more littler, and said spoke hole can be designed as through hole, also can be designed as the groove that caves in.
In the utility model, be threaded with positive and negative threaded shaft thereby said brake member is provided with the circular nut of movable band knock hole, said brake member is provided with through hole and the tightening screw adaptive with the knock hole of circular nut; The two ends up and down that said brake member is provided with spoke hole part are connected through guide rail with described casing, and the positive and negative threaded shaft in member edge that brakes remains on the guide rail when moving and slides.The body of described brake member and the circular nut free-running fit of being with knock hole; Be that circular nut is rotatable; And through the knock hole location; Can regulate gap length between brake member and the said guide rail through regulating tightening screw in the degree of depth between the knock hole of circular nut thus, and make things convenient for screwing of clockwork spring.For the ease of regulating, described knock hole can be designed as more than one, is preferably three.
In the utility model, said axle rotary positioning apparatus comprises spring perch, is arranged on the pawl component in the spring perch and is arranged on positive and negative threaded shaft one end and the adaptive rectangle ratchet of said pawl component; Said pawl component comprises the location dop, connects the radius stay of location dop and is nested in spring, clump weight and the setting nut on the radius stay; Be provided with block in the said spring perch, said spring, clump weight and setting nut are successively set on the block top from the bottom to top, and it is adaptive with said rectangle ratchet that said location dop is positioned at the block below.Spring in the axle rotary positioning apparatus is a compression spring.A side of location dop can be made as smooth bevel, guarantees thus that the rectangle ratchet does not rotate or only according to desired direction rotation.
In the utility model, said axle rotating driving device is for connecting the clockwork spring of positive and negative threaded shaft.
Working process: the said industrial elevator of the utility model is installed in the bottom of elevator with safety anti-falling device, and elevator guide rails passes the positions between two brake members of brake gear.When the elevator normal operation, the location dop of said pawl component blocks the rectangle ratchet of positive and negative threaded shaft one end, and a rotating driving device is not worked, and the brake member does not contact with the guide rail of elevator.When elevator falls, the axle rotary positioning apparatus is worked immediately, and pawl component is under state of weightlessness; The location dop breaks away from from the rectangle ratchet; The axle rotating driving device drives positive and negative threaded shaft rotation, and two brake members will be simultaneously to intermediary movements, the guide rail of extruding elevator.In brake member and the guide rail generation slide relative process, drive the oblique chute upward movement of brake shoes along spoke hole, two brake shoes continue the extruding guide rail, and drag friction power is increasing, till cage stops to fall.
Beneficial effect: the described industrial elevator of the utility model is used safety anti-falling device, is not only applicable to disconnected rope situation, also is applicable to other cages situation of falling suddenly; And gradual braking; Braking is steady, column steel pipe zero damage, good reliability; Highly sensitive, fully guarantee personnel and property safety in the elevator.
Description of drawings
Below in conjunction with accompanying drawing and the specific embodiment the utility model is done specifying further, the above-mentioned and/or otherwise advantage of the utility model will become apparent.
Fig. 1 removes the part sectional view of Box Cover for the utility model.
Fig. 2 is the whole schematic side view of the utility model.
Fig. 3 is the utility model scheme of installation.
Fig. 4 is the structural representation of the utility model brake gear when the elevator normal operation.
Fig. 5 is the structural representation of the utility model brake gear when elevator falls.
Fig. 6 is the work scheme drawing of the utility model when elevator falls.
Fig. 7 is the exploded perspective view of the utility model axle rotary positioning apparatus.
Fig. 8 is the utility model axle rotating driving device cutaway view.
Fig. 9 is the positive and negative threaded shaft structural representation of the utility model.
The specific embodiment
As depicted in figs. 1 and 2; The utility model discloses a kind of industrial elevator and use safety anti-falling device; The positive and negative threaded shaft 3 that comprises casing and run through casing; Said positive and negative threaded shaft 3 is provided with brake gear 5 and axle rotating driving device, and said positive and negative threaded shaft one end is provided with the rotation that a rotary positioning apparatus is used to control positive and negative threaded shaft, and said axle rotating driving device drives positive and negative threaded shaft rotation when the axle rotary positioning apparatus discharges positive and negative threaded shaft; The surface of said positive and negative threaded shaft 3 is respectively arranged with forward screw thread and reverse thread; Said brake gear comprises two brake members 17; Adopt between brake member 17 and the positive and negative threaded shaft and be threaded; When positive and negative threaded shaft rotates under the drive of axle rotating driving device, two the brake member gradually near.
Like Fig. 4 and shown in Figure 5, said brake member 17 is provided with spoke hole 22, is provided with brake shoes 21 in the spoke hole, and said spoke hole both sides are provided with oblique chute 17a, and said brake shoes 21 both sides and said oblique chute are adaptive.Thereby said brake member 17 is provided with the circular nut 18 of movable band knock hole and is threaded with positive and negative threaded shaft, and said brake member is provided with through hole and the tightening screw 19 adaptive with the knock hole of circular nut; The two ends up and down that said brake member 17 is provided with spoke hole part are connected through guide rail with described casing, and the positive and negative threaded shaft in member edge that brakes remains on the guide rail when moving and slides.Can spoke hole two ends up and down partly be set at brake member 17 and be provided with protruding guide rail 20, casing is provided with adaptive with it guide rail groove 1a.Be connected through antifriction-bearing box between positive and negative threaded shaft and the said casing, be preferably angular contact ball bearing.
Like Fig. 1 and shown in Figure 7, said axle rotary positioning apparatus comprises spring perch 6, is arranged on the pawl component in the spring perch and is arranged on positive and negative threaded shaft one end and the adaptive rectangle ratchet 11 of said pawl component; Said pawl component comprises location dop 14, connects the radius stay 12 of location dop and is nested in spring 16, clump weight 15 and the setting nut 13 on the radius stay; Be provided with block 6a in the said spring perch, said spring, clump weight and setting nut are successively set on the block top from the bottom to top, and it is adaptive with said rectangle ratchet that said location dop is positioned at the block below.A side of location dop can be made as smooth bevel, guarantees thus that the rectangle ratchet does not rotate or only according to desired direction rotation.
Like Fig. 8 and shown in Figure 9, said axle rotating driving device is for connecting the clockwork spring 4 of positive and negative threaded shaft 3, and going barrel 2 can be assembled in clockwork spring 4 outsides.Right-hand screw thread 3a and minus thread 3b that positive and negative threaded shaft 3 is got on the bus two sections and had latching characteristics are connected with cooresponding said outside circular nut 18 with holes respectively, and two nuts with respect to positive and negative threaded shaft axially in opposite directions or reverse motions.
As shown in Figure 3, the safety anti-falling device of the utility model is installed in the bottom of the cage 8 of industrial elevator, and as shown in Figure 6, and the guide rail 10 of industrial elevator passes between two of the brake gear 5 brake members 17 of safety anti-falling device.
Embodiment
As shown in Figure 3, the described safety anti-falling device 9 of present embodiment is installed in building hoist cage 8 bottoms through bolt, matches with elevator guide rails 10.As shown in Figure 9, positive and negative threaded shaft 3 surperficial cars have two sections left and right sides winding stair shape screw threads that pitch is identical.As depicted in figs. 1 and 2; Casing comprises the Box Cover 7 of housing seat 1 and top; Positive and negative threaded shaft 3 is fixed on Box Cover 7 and the housing seat 1 through antifriction-bearing box, on it respectively symmetry brake gear 5 is housed, there is going barrel 2 brake gear 5 both sides symmetric arrangement respectively; Going barrel 2 is fixed in the housing seat 1, and clockwork spring 4 is housed in the going barrel 2.Positive and negative threaded shaft 3 is provided with a rotary positioning apparatus 6 with housing seat 1 an outer end.
Shown in Fig. 4 ~ 5, said brake gear 5 comprises: two brake members 17, outside circular nut 18 with holes are installed in through tightening screw 19 in the cylindrical bore of brake member 17, and protruding guide rail 20 is installed on the brake member respectively, and about in the of 17 two ends.Said brake member 17 is provided with spoke hole 22, is provided with brake shoes 21 in the spoke hole, and said spoke hole both sides are provided with oblique chute 17a, and said brake shoes 21 both sides and said oblique chute are adaptive.
Like Fig. 1,2 and shown in Figure 7, said axle rotary positioning apparatus comprises the spring perch 6 that is fixed on the Box Cover 1, is arranged on the pawl component in the spring perch and is arranged on positive and negative threaded shaft one end and the adaptive rectangle ratchet 11 of said pawl component; Said pawl component comprises location dop 14, connects the radius stay 12 of location dop and is nested in spring 16, clump weight 15 and the setting nut 13 on the radius stay; Be provided with block 6a in the said spring perch, said spring, clump weight and setting nut are successively set on the block top from the bottom to top, and it is adaptive with said rectangle ratchet that said location dop is positioned at the block below.Radius stay 12 upper ends have and setting nut 13 cooresponding screw threads, and setting nut is pressed on cylindrically coiled spring 16 in the spring perch 6.
Shown in Fig. 8 ~ 9, clockwork spring 4 outer ends adopt the liner fixed sturcture to be connected with going barrel 2, and the inner V-slot fixed sturcture that adopts is connected with positive and negative threaded shaft 3.When elevator normally moved, clockwork spring 4 kept tightening state in going barrel 2.
The principle of work of present embodiment is following:
Shown in Fig. 1 ~ 4; When elevator normally moves, under clump weight 15 actions of gravity, compress cylindrically coiled spring 16 through setting nut 13, location dop 14 is stuck in rectangle ratchet 11 backlash; Then positive and negative threaded shaft 3 can only or not rotate to a direction rotation; Clockwork spring 4 is in the state of tightening in going barrel 2, this moment, brake shoes 21 was in the bottom of spoke hole 22 because the positive and negative threaded shaft 3 of detent mechanism effect can not rotate; Between the guide rail of brake member 17 and safety anti-falling device certain interval is arranged, along guide rail parallel direction up-and-down movement.
Shown in Fig. 5 ~ 7, when the elevator something unexpected happened fell, clump weight 15 was in state of weightlessness with location dop 14; Cylindrically coiled spring 16 will be located dop 14 and upspring and make it break away from rectangle ratchet 11, positive and negative threaded shaft 3 under clockwork spring 4 propulsive effort effects to the lax direction rotation of clockwork spring, the positive minus thread winder 3 two sections left and right sides winding stair shape screw threads that pitch is identical of getting on the bus; Two brake members 17 will be along sliding-rail groove 1a simultaneously to intermediary movements; Extruding building hoist guide rail 10 has latching characteristics owing to the positive minus thread ascending angle on the bar axle is less, when brake member 17 and guide rail generation slide relative, will drive the oblique chute 17a upward movement of brake shoes 21 along spoke hole 22; Two brake shoes 21 continue the extruding guide rail; Drag friction power is increasing, till cage stops to fall, thereby plays the safety guard-safeguard effect.
The utility model provides thinking and the method for a kind of industrial elevator with safety anti-falling device; The method and the approach of concrete this technical scheme of realization are a lot, and the above only is the preferred implementation of the utility model, should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.The all available prior art of each component part not clear and definite in the present embodiment realizes.
Claims (5)
1. an industrial elevator is used safety anti-falling device; It is characterized in that; The positive and negative threaded shaft (3) that comprises casing and run through casing; Said positive and negative threaded shaft (3) is provided with brake gear (5) and axle rotating driving device, and said positive and negative threaded shaft one end is provided with the rotation that a rotary positioning apparatus is used to control positive and negative threaded shaft, and said axle rotating driving device drives positive and negative threaded shaft rotation when the axle rotary positioning apparatus discharges positive and negative threaded shaft;
The surface of said positive and negative threaded shaft (3) is respectively arranged with forward screw thread and reverse thread; Said brake gear comprises two brake members (17); Adopt and be threaded between brake member (17) and the positive and negative threaded shaft; When positive and negative threaded shaft rotates under the drive of axle rotating driving device, two the brake member gradually near.
2. a kind of industrial elevator according to claim 1 is used safety anti-falling device; It is characterized in that; Said brake member (17) is provided with spoke hole (22); Be provided with brake shoes (21) in the spoke hole, said spoke hole both sides are provided with oblique chute (17a), and said brake shoes (21) both sides and said oblique chute are adaptive.
3. a kind of industrial elevator according to claim 2 is used safety anti-falling device; It is characterized in that; Thereby said brake member (17) is provided with the circular nut (18) of movable band knock hole is threaded with positive and negative threaded shaft, and said brake member is provided with through hole and the tightening screw (19) adaptive with the knock hole of circular nut; The two ends up and down that said brake member is provided with spoke hole part are connected through guide rail with described casing, and the positive and negative threaded shaft in member edge that brakes remains on the guide rail when moving and slides.
4. a kind of industrial elevator according to claim 1 and 2 is used safety anti-falling device; It is characterized in that the rectangle ratchet (11) that said axle rotary positioning apparatus comprises spring perch (6), is arranged on the pawl component in the spring perch and is arranged on positive and negative threaded shaft one end and said pawl component is adaptive; Said pawl component comprises location dop (14), connects the radius stay (12) of location dop and is nested in spring (16), clump weight (15) and the setting nut (13) on the radius stay; Be provided with block (6a) in the said spring perch, said spring, clump weight and setting nut are successively set on the block top from the bottom to top, and it is adaptive with said rectangle ratchet that said location dop is positioned at the block below.
5. a kind of industrial elevator according to claim 4 is used safety anti-falling device, it is characterized in that, said axle rotating driving device is for connecting the clockwork spring (4) of positive and negative threaded shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220225523.2U CN202594560U (en) | 2012-05-19 | 2012-05-19 | Safety falling protector for industrial elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220225523.2U CN202594560U (en) | 2012-05-19 | 2012-05-19 | Safety falling protector for industrial elevator |
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| Publication Number | Publication Date |
|---|---|
| CN202594560U true CN202594560U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220225523.2U Expired - Fee Related CN202594560U (en) | 2012-05-19 | 2012-05-19 | Safety falling protector for industrial elevator |
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| Country | Link |
|---|---|
| CN (1) | CN202594560U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659008A (en) * | 2012-05-19 | 2012-09-12 | 南京工业大学 | Safety falling protector for industrial elevator |
| CN107500076A (en) * | 2017-09-12 | 2017-12-22 | 中山市鑫海精密制造科技有限公司 | A kind of auxiliary clamping device of elevator |
| CN110439885A (en) * | 2019-07-03 | 2019-11-12 | 安徽长青建筑制品有限公司 | A kind of high altitude operation safe locking device |
| CN113998557A (en) * | 2022-01-05 | 2022-02-01 | 心力电梯科技有限公司 | Elevator safety brake |
-
2012
- 2012-05-19 CN CN201220225523.2U patent/CN202594560U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659008A (en) * | 2012-05-19 | 2012-09-12 | 南京工业大学 | Safety falling protector for industrial elevator |
| CN107500076A (en) * | 2017-09-12 | 2017-12-22 | 中山市鑫海精密制造科技有限公司 | A kind of auxiliary clamping device of elevator |
| CN110439885A (en) * | 2019-07-03 | 2019-11-12 | 安徽长青建筑制品有限公司 | A kind of high altitude operation safe locking device |
| CN113998557A (en) * | 2022-01-05 | 2022-02-01 | 心力电梯科技有限公司 | Elevator safety brake |
| CN113998557B (en) * | 2022-01-05 | 2022-03-04 | 心力电梯科技有限公司 | Elevator safety brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20170519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |