CN202575622U - Progressive type safety gear - Google Patents
Progressive type safety gear Download PDFInfo
- Publication number
- CN202575622U CN202575622U CN 201220211497 CN201220211497U CN202575622U CN 202575622 U CN202575622 U CN 202575622U CN 201220211497 CN201220211497 CN 201220211497 CN 201220211497 U CN201220211497 U CN 201220211497U CN 202575622 U CN202575622 U CN 202575622U
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- China
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- pincers
- guide rail
- gear
- piece
- pincers piece
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- Expired - Fee Related
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Abstract
The utility model discloses a progressive type safety gear for overspeed and fall-preventing protection of a lifting body of a lifting device. The progressive type safety gear comprises a gear base, a left gear block, a right gear block, an elastic member, a regulating member and a self-regulating member, wherein the regulating member and the self-regulating member can be used for automatically regulating the rising of the left gear block and the right gear block, the elastic member can be matched with the left rising gear block and the right rising gear block for gradually increasing the brake force to a guide rail, so that the overspeed and drop lifting body is progressively braked on a guide rail. The progressive type safety gear has the advantages of scientific and reasonable structure, safety and reliability in action, and convenience for installation and use, is a novel safety gear in the traditional safety gear series, and can be widely applied to a guide rail type goods lift (material lift), a guide rail people and cargo lift and a guide rail type mine lifting device.
Description
Technical field
The lifting body that the utility model belongs to a kind of building operation, industrial and mining enterprises and interior of building lifting means exceeds the speed limit, falls, stops the safety tongs of protection, particularly a kind of progressive safety gear.
Background technology
In the prior art, like the AQ1-A safety tongs that HebeiI Dongfang Fuda Machinery Co., Ltd. produces, its structure be on the pincers seat, be provided with left and right cooresponding be trapezoidal inclined-plane and with the fixing respectively abreast left slide rail in inclined-plane, right slide rail.Parallel respectively inclined-plane separately is provided with chute hole on the left and right pincers piece, and pincers piece inclined-plane, a left side corresponding pincers seat left tilted surface is slidingly arranged on the left slide rail through chute hole, and right pincers piece inclined-plane corresponding pincers seat right tilted surface is slidingly arranged on the right slide rail through chute hole.Left and right pincers piece is separately positioned on the both sides of guide rail and keeps the gap respectively, and the pincers seat is arranged on the lifting body.When lifting body rise or fall in servicely exceed the speed limit suddenly, when falling; Binary pair promote left and right pincers piece on each self-corresponding pincers seat the inclined-plane and rise; Eliminate at first apace and guide rail between the gap; The both sides that contact, rub and compress guide rail form Clamping force, with hypervelocity, instantaneous ground of the lifting body stop of falling on guide rail.Instantaneous ground of lifting body stop causes bigger damage to whole jacking equipment structure and guide rail, does not meet the requirement of industry standard JGJ88-2010 " portal frame and derrick material elevator technical specification of security ".Should not be used in especially on the lifting body of middle and high speed lifting.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned prior art weak point, and a kind of progressive safety gear scientific and reasonable for structure, safe and reliable, easy for installation is provided.
The technical scheme of the utility model is: on the pincers seat of pincers seat and left side pincers piece, the right pincers safety tongs that piece constituted; Be provided with the left and right sides cooresponding be trapezoidal inclined-plane and with fixing respectively abreast left slide rail in inclined-plane and right slide rail; Left chute hole is established on parallel inclined-plane on the pincers piece of a left side, and the right rail hole is established on parallel inclined-plane on the right pincers piece; Right pincers piece is contained on the right slide rail through the right rail hole loosely; Between the right tilted surface of the inclined-plane of right pincers piece and pincers seat bullet spare is set; Under the effect of bullet spare; The keep right right side of slide rail of the right trough rim of right rail, the distance between the left trough rim of right rail and the left side of right slide rail be greater than the thickness of bullet spare, left side pincers piece through left chute hole bearing fit be contained on the left slide rail; Left side pincers piece, right pincers piece connect the self-regulated part respectively, and self-regulated part and adjustment part are equipped with, and left side pincers piece, right pincers piece are separately positioned on the both sides of guide rail; In braking procedure, promote left side pincers piece and right pincers piece, jointly guide rail is increased braking force gradually with a left side pincers piece when right pincers piece gradually reduces bullet spare.
Description of drawings
Accompanying drawing is the example structure scheme drawing of the utility model.
The specific embodiment
Embodiment: pincers seat 2 is installed on lifting body 14; About being provided with on the pincers seat 2 corresponding be trapezoidal inclined-plane and with the fixing respectively abreast left slide rail in inclined-plane 13, right slide rail 5; Parallel inclined-plane is provided with left chute 12 holes on the pincers piece 11 of a left side, and parallel inclined-plane is provided with right rail 4 holes on the right pincers piece 3.Right pincers piece 3 is contained on the right slide rail 5 through right rail 4 holes loosely; Between the right tilted surface of the inclined-plane of right pincers piece 3 and pincers seat 2 bullet spare 6 is set; The right trough rim of right rail 4 is near the right side of right slide rail 5 under the effect of bullet spare 6; Distance between the left trough rim of right rail 4 and the left side of right slide rail 5 is greater than the thickness of bullet spare 6, left side pincers piece 11 through left chute 12 hole bearing fits be contained on the left slide rail 13.Left side pincers piece 11, right pincers piece 3 connect self-regulated part 7 respectively, and self-regulated part 7 is equipped with adjustment part 8.Left side pincers piece 11, right pincers piece 3 are separately positioned on the both sides of guide rail 9, and corresponding guide rail 9 both sides are respectively at the upper and lower roller 15 that is provided with of lifting body 14.Under the driving of power, lifting body 14 through roller 15 along guide rail 9 do to rise or fall in service, guide rail 9 can not rub right side pincers piece 3 that receives right spring 1 effect and the left side pincers piece 11 that receives left spring 10 effects and keep the gap respectively.Promote left side pincers piece 11 and right pincers piece 3, jointly guide rail 9 is increased braking force gradually with left side pincers piece 11 when right pincers piece 3 gradually reduces bullet spare 6.Its process was when the utility model used in reality: under the driving of power; Lifting body 14 through roller 15 along guide rail 9 do to rise or fall in service, guide rail 9 can not rub right side pincers piece 3 that receives right spring 1 effect and the left side pincers piece 11 that receives left spring 10 effects and keep the gap respectively.Exceed the speed limit when lifting body 14 is in operation suddenly, when falling; Binary pair 16 upwards promotes adjustment part 8 and drives self-regulated parts 7 and promote the left sides pincers pieces 11 that connect self-regulated parts 7 synchronously and overcome left spring 10 power and rise along left tilted surface and left slide rail 13 on the pincers seat 2 in braking procedure, promotes right pincers piece 3 simultaneously and overcomes right spring 1 power and rise along bullet spare 6 and right slide rail 5.If this moment left side pincers piece 11 is little with guide rail 9 gaps, the left side pincers piece 11 of rising at first contacts guide rail 9 one sides and produces frictional force, is forced to stop to rise and self-regulated part 7 one ends of control connection on it rise.If this moment, right pincers piece 3 was big with guide rail 9 gaps; Though having risen with left side pincers piece 11 synchronously, right pincers piece 3 eliminated the part gap; But also there is certain clearance with guide rail 9; Continue to promote under the effect of adjustment part 8 at binary pair 16, self-regulated part 7 other ends continue to promote the right side pincers piece 3 that connects on it, and right pincers piece 3 contacts guide rail 9 again after eliminating whole gaps opposite side produces friction force.When left side pincers piece 11,3 pairs of guide rail 9 both sides of right pincers piece all produced friction force, the hypervelocity of lifting body 14, the speed of falling began to slow down.Binary pair 16 promotes adjustment part 8 drive left side pincers pieces 11 continuously and promotes; Left side pincers piece 11 more presses against track 9 a side and strengthen friction force; Driven the elastic force that right side pincers piece 3 beginnings that promote little by little overcome bullet spare 6 this moment; Also be to increase friction force simultaneously gradually to guide rail 9; Behind the elastic force that overcomes bullet spare 6 fully, right pincers piece 3 more presses against track 9 opposite side and more strengthen friction force and little by little guide rail 9 formed Clamping forces jointly with left side pincers piece 11, realize that gradual ground stop to hypervelocity, the lifting body 14 that falls is on guide rail.
The utility model has characteristics such as scientific and reasonable for structure, safe, reliable and convenient compared with prior art, is a kind of progressive safety gear.
Claims (2)
1. progressive safety gear; Comprise pincers seat, left side pincers piece, right pincers piece and spring; It is characterized in that pincers seat (2) and left side pincers piece (11), the right pincers on the safety tongs that pieces (3) are constituted; Between the right tilted surface of the inclined-plane of right pincers pieces (3) and pincers seats (2) bullet spare (6) is set, in braking procedure, promotes left side pincers piece (11) and right pincers piece (3), jointly guide rail (9) is increased braking force gradually with left side pincers pieces (11) when right pincers pieces (3) gradually reduce bullet spare (6).
2. according to the described progressive safety gear of claim (1), it is characterized in that left side pincers piece (11), right pincers pieces (3) connect self-regulated part (7) respectively, self-regulated part (7) is equipped with adjustment part (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220211497 CN202575622U (en) | 2012-05-11 | 2012-05-11 | Progressive type safety gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220211497 CN202575622U (en) | 2012-05-11 | 2012-05-11 | Progressive type safety gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202575622U true CN202575622U (en) | 2012-12-05 |
Family
ID=47245059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220211497 Expired - Fee Related CN202575622U (en) | 2012-05-11 | 2012-05-11 | Progressive type safety gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202575622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114955779A (en) * | 2022-05-17 | 2022-08-30 | 江苏省特种设备安全监督检验研究院 | Elevator first aid communication device |
-
2012
- 2012-05-11 CN CN 201220211497 patent/CN202575622U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114955779A (en) * | 2022-05-17 | 2022-08-30 | 江苏省特种设备安全监督检验研究院 | Elevator first aid communication device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140511 |