CN206218990U - For the spring-loaded tensioners of elevator governor - Google Patents

Abstract

A kind of spring-loaded tensioners for elevator governor, including tensioning wheel, rope sheave mounting seat, guidance set and compression spring, the tensioning wheel is arranged in rope sheave mounting seat, and the rope sheave mounting seat is arranged on guidance set and is slided up and down along guidance set, it is characterised in that：The shaft core position that the both sides of the guidance set and compression spring are close to tensioning wheel sentences the upright projection for avoiding safety tongs link gear, the upper-lower position of the rope sheave mounting seat is within the upper-lower position of tensioning wheel or maintains an equal level, and the compression spring is arranged in rope sheave mounting seat so that compression spring uses tensile force with the slow slinky spring of elongation decay.The height of the vertical interference part of the tensioning apparatus and pit depth requirement is reduced, compression spring can keep enough tensile forces during normal extension.

Description

For the spring-loaded tensioners of elevator governor

Technical field

The utility model is related to elevator technology field, and in particular to a kind of spring for elevator governor is tensioned dress Put.

Background technology

Authorization Notice No. is the Chinese utility model patent of CN204980705U, discloses a kind of for elevator governor Spring-loaded tensioners, its structure are as shown in figure 1, including tensioning wheel 3a, rope sheave mounting seat 2a and for supporting simultaneously strop Wheel mounting seat 2a does the guidance set of upper and lower displacement campaign, and the tensioning wheel 3a is arranged on rope sheave mounting seat 2a, the guiding Component includes base 1a and front and rear two groups of guide posts being symmetricly set on the upper surface of base, and the base 1a is fixed on On well pit, the rope sheave mounting seat 2a is movably set in two groups of middle parts of guide post, wherein every group of guide post is included symmetrically The guiding bar body 4a of the base 1a left and right sides is distributed in, each is oriented on bar body 4a and is also arranged with locking successively from top to bottom Nut 5a, compression piece 6a and compression spring 7a, locking nut 5a are fixed on the top for being oriented to bar body 4a, the two of compression spring 7a End is connected with the upper surface of rope sheave mounting seat 2a and compression piece 6a respectively, compresses piece 6a and is also in contact with locking nut 5a, bottom The upper surface left and right sides of seat 1a is also symmetrical to be provided with two support frame 8a, is oriented to that bar body 4a is corresponding respectively to be located in support On frame 8a, also including a support 9a and safety protection switch 10a, safety protection switch 10a is arranged on one end of support 9a, and position A upper surface of support frame 8a is fixed therein in the other end in the bottom of rope sheave mounting seat 2a, support 9a, in limiter of speed Steel wire rope be stretched over preseting length after, send early warning after safety protection switch 10a sensings, remind maintenance personal in time more Change steel rope.The tensioning apparatus of the elevator governor is connected to compression bullet by will be provided with the rope sheave mounting seat 2a of tensioning wheel 3a On spring 7a, the steel wire rope of limiter of speed is tensioned using the elastic force of compression spring 7a, it uses elastic tension mode to replace original weight Hammer tensioning mode, not only reduces cost, reduces the space hold to hoistway, and its mounting means is flexibly convenient.

But the existing spring-loaded tensioners for elevator governor are still present following technical problem：Due to tensioning Wheel 3a is the upright projection that can not avoid safety tongs link gear, and compression spring 7a is provided in the upper of rope sheave mounting seat 2a Face causes to be usually located at the top of compression spring 7a on the top of tensioning wheel 3a, and four of top view positioned at tensioning wheel 3a On angle, the upright projection of safety tongs link gear can not be avoided certainly；Therefore in order to avoid with safety tongs link gear Interference is, it is necessary to reduce the height of compression spring 7a to reduce the height of the peak of interference part in tensioning apparatus vertical direction as far as possible The height of the hereinafter referred to as vertical interference part of degree；And simultaneously in order to ensure the tensile force of compression spring 7a, it is necessary to select elastic system The larger compression spring 7a of number, from the appearance seeks to select not only thick but also short compression spring 7a；This not only thick but also short pressure Contracting spring 7a is very serious with the growth tensile force decay of elongation, therefore generally elongation can not set too big, otherwise Elongation is excessive will to cause tensile force inadequate, that is to say, that can only set very close to rope sheave by safety protection switch 10a The bottom of mounting seat 2a；But because speed limiter wire rope is shaken unavoidably in elevator starting-braking process, and by humidity etc. There is certain elongation percentage in factor influence, cause safety protection switch 10a that triggering letter can be also sent when there is above-mentioned situation Number, trigger signal at this moment is actually error signal, is caused because the switch distance of safety protection switch 10a is too small, Therefore the height of vertical interference part in tensioning apparatus, the switch distance of safety protection switch 10a and compression spring 7a's There is implacable contradiction between tensile force decay.

Utility model content

The technical problems to be solved in the utility model is：A kind of height of vertical interference part is provided and pit depth is wanted Ask reduce, compression spring can keep the spring for elevator governor of enough tensile force to open during normal extension Tight device.

Technical solution of the present utility model is：A kind of spring-loaded tensioners for elevator governor, including Bearing up pulley, rope sheave mounting seat, guidance set and compression spring, the tensioning wheel are arranged in rope sheave mounting seat, and the rope sheave is installed Seat is arranged on guidance set and is slided up and down along guidance set, it is characterised in that：The both sides of the guidance set and compression bullet The shaft core position that spring is close to tensioning wheel sentences the upright projection for avoiding safety tongs link gear, the rope sheave mounting seat it is upper and lower Position is located within the upper-lower position of tensioning wheel or maintains an equal level, and the compression spring is arranged in rope sheave mounting seat so that compression spring Using tensile force with the slow slinky spring of elongation decay.

The upper-lower position of above-mentioned rope sheave mounting seat is located within the upper-lower position of tensioning wheel or maintains an equal level, and refers to set rope sheave peace The top for filling seat is less than or maintained an equal level in the top of tensioning wheel, and the bottom of rope sheave mounting seat is higher than or maintains an equal level in the bottom of tensioning wheel, I.e. the upper-lower position of rope sheave mounting seat is without departing from the upper-lower position of tensioning wheel.

After said structure, the utility model has advantages below：

The utility model is used for the spring-loaded tensioners of elevator governor, sets the upper-lower position of rope sheave mounting seat not Beyond the upper-lower position of tensioning wheel, and compression spring is arranged in rope sheave mounting seat so that the height of compression spring and tensioning The whole height of device is unrelated, does not interfere with the height of vertical interference part, and highly sufficiently large due to tensioning wheel, therefore nothing Stumpy spring need to be used, but tensile force may be selected with the slow not only thin but also long slinky spring of elongation decay, so that Compression spring can keep enough tensile forces during normal extension；The upper-lower position of setting rope sheave mounting seat is located at and opens in addition Within the upper-lower position of bearing up pulley or maintain an equal level, and guidance set both sides and compression spring avoid the vertical of safety tongs link gear Projection, therefore the height of vertical interference part only considers the diameter of tensioning wheel plus the distance of rope sheave free settling, i.e., vertical interference The height reduction of part, so as to also cause that requirement of the tensioning apparatus to pit depth is reduced；In addition, made using spring For tensile force source is easier compared to re-mounting, because being originated when mounted, due to heavy as tensile force using counterweight The presence of amount, staff need to lift the tensioning apparatus of about 30KG and be kept for a period of time can just carry out the peace of speed limiter wire rope Dress and adjustment, and spring self-lock is significantly reduced the labour intensity and work difficulty of installer by spring-loaded tensioners.

Preferably, the guidance set include upper lower fixed seat and be arranged between lower fixed seat for drawing The guide post of sheave mounting seat upper and lower displacement campaign, the upper lower fixed seat is provided with for mutually fixed with cage guide Lower fixation kit.Be arranged on tensioning apparatus on cage guide by the setting, changes traditional beating swell fixture and fix to pit and opens The mode of tight device, water destruct electrical equipment is entered such that it is able to avoid waterproof layer from being punched.

Preferably, the upper and lower fixation kit also is located at outside the upright projection of safety tongs link gear.The setting can Avoiding upper and lower fixation kit increases the height of vertical interference part, reduces the requirement to pit depth.

Preferably, the middle part of the guide post is from top to bottom arranged with fastener and compresses piece, the compression bullet successively Spring is set in that guide post is outer and top offsets with piece is compressed, and bottom offsets with the bottom of rope sheave mounting seat, the fastener and presses Tight piece be connected for adjust and fixed compression spring tip position.The setting causes the fixation of compression spring simple and tensile force Regulation it is very flexible.

Preferably, the fastener is double nut.Setting double nut can conveniently be installed, and the clamp nut in double nut is used In the tip position of fixed compression spring, the limitation nut in double nut before steel wire rope tightens up tensioning wheel, pacify by limitation rope sheave Dress seat is oppositely oriented bar slide downward, the relative initial position of each part of tensioning apparatus is determined to install, and in steel wire rope Tighten up after tensioning wheel, limitation nut is threaded to and is offseted with clamp nut, so that rope sheave mounting seat can be oppositely oriented bar slip.

Preferably, also include the safety protection switch on lower fixed seat, and in rope sheave mounting seat For moving down when triggering safety protection switch action hit plate, the plate that hits is constant apart from D4 with the switch of safety protection switch And the distance between the bottom less than tensioning wheel and lower fixed seat D1.The plate that hits is apart from D4 with the switch of safety protection switch The distance that plate is reached triggering safety protection switch 18 action B by initial position A is hit, the setting can be super in the elongation of steel wire rope When going out early warning value, early warning signal is sent using plate triggering safety protection switch is hit, and plate will be hit be installed in rope sheave mounting seat, Safety protection switch is installed on lower fixed seat, the switch hit between plate and safety protection switch just can be made constant apart from D4, Need not adjust, it is to avoid due to the improper caused shielding failure of switch distance regulation.

Preferably, it is described hit plate support to safety protection switch lower limit position C when, the bottom of the tensioning wheel is with Fixed seat offsets.The setting can effectively protect safety protection switch, it is not damaged.

Preferably, it is described hit plate positioned at initial position A when, meeting 8 times of the disrumpent feelings safety coefficient of speed limiter wire rope Under the premise of, the initial tension of compression spring is adjusted to 1.5 times of tensile force F0 needed for theory, the plate that hits is opened with safeguard protection The switch of pass apart from D4 be 50mm-100mm, it is described hit plate reach triggering safety protection switch action at B when, the compression spring Tensile force still greater than or equal to tensile force F0 needed for theory.The slinky spring that the setting is used meets elongation up to 50-100mm Afterwards, tensile force decay is not more than tensile force F0 needed for 0.5 times of theory, so that the tensile force after decay still meets theoretical institute The requirement of tensile force F0 is needed, and is considerably increased apart from D4 with the switch of safety protection switch due to hitting plate, can be prevented effectively from Safety protection switch sends error signal.

Preferably, being provided with an intersegmental gap D5 between the top of the rope sheave mounting seat and upper fixed seat to suppress tensioning wheel Upper jump.This is arranged on that elevator starts or braking is when causing tensioning wheel to takeoff upwards, amount of spring compression increase, i.e. pretightning force increase and Make to be jumped on tensioning wheel and suppressed, apply a reverse cushion effect equivalent to tensioning wheel, so as to avoid rope sheave mounting seat Top and upper fixed seat hardness bump against the impact for bringing, the stability of operation can be better ensured that.

Brief description of the drawings：

Fig. 1 is the structural representation of the spring-loaded tensioners for being currently used for elevator governor；

Fig. 2 is the front view of the spring-loaded tensioners that the utility model is used for elevator governor；

Fig. 3 is the left view of the spring-loaded tensioners that the utility model is used for elevator governor；

Fig. 4 is the top view of the spring-loaded tensioners that the utility model is used for elevator governor；

Fig. 5 is the rear isometric view of the spring-loaded tensioners that the utility model is used for elevator governor；

Fig. 6 is the left and right directions position view of the utility model guidance set, fixation kit and safety tongs link gear；

Fig. 7 is the fore-and-aft direction position view of the utility model guidance set, fixation kit and safety tongs link gear；

The structural representation of Fig. 8 each parts before being dispatched from the factory for the utility model；

Fig. 9 dispatched from the factory for the utility model after installation steps figure；

In prior art diagram：1a- bases, 2a- rope sheave mounting seats, 3a- tensioning wheels, 4a- is oriented to bar body, 5a- locking screws Mother, 6a- compresses piece, 7a- compression springs, 8a- support frames, 9a- supports, 10a- safety protection switch；

In the utility model figure：1- tensioning wheels, 2- rope sheave mounting seats, 3- guidance sets, 4- fore-stocks, 5- after-poppets, 6- Entablature, 7- sills, 8- vertical beams, 9- upper fixed seats, 10- lower fixed seats, guidance set before 11-, guidance set after 12-, 13- Guide post, 14- compression springs, 15- top mounting subassemblies, 16- cage guides, 17- safety tongs link gears, 18- safeguard protections are opened Close, 19- hits plate, 20- trigger units, 21- connecting portions, 22- switch brackets, 23- double nuts, 24- compresses piece, the L-squares of 25- first, The L-squares of 26- second, the upper lower nuts of 27-, 28- clamp nuts, 29- limitation nuts, fixation kit under 30-, the upper constrictions of 31- Part, 32- tension parts, constraint component under 33-, A- hits the initial position of plate, at B- safety protection switch actions, C- safeguard protections The lower limit position of switch, the spacing between the bottom of D1- rope sheave mounting seats and lower fixed seat, D2- hits trigger unit and the company of plate The spacing of the spacing between socket part, D3- safety protection switch and lower fixed seat, the initial position A that D4- hits plate reaches triggering safety The distance of B at protection switch action, the spacing between the top of D5- rope sheave mounting seats and upper fixed seat.

Specific embodiment

Below in conjunction with the accompanying drawings, and in conjunction with the embodiments the utility model is described further.

Embodiment：

A kind of spring-loaded tensioners for elevator governor, including tensioning wheel 1, rope sheave mounting seat 2, guidance set 3 With compression spring 14, the rope sheave mounting seat 2 include be connected with each other fore-stock 4 and after-poppet 5, the front and back support 4,5 is equal Vertical beam 8 including entablature 6, sill 7 and for connecting lower and upper cross-member 6,7, the tensioning wheel 1 passes through the company of pivoting It is connected between two vertical beams 8 of rope sheave mounting seat 2, the rope sheave mounting seat 2 is arranged on guidance set 3 and along guidance set 3 Slide up and down, the shaft core position that the both sides of the guidance set 3 and compression spring 14 are close to tensioning wheel 1 is sentenced and avoids safety The upright projection of link gear 17 is clamped, the upper-lower position of the rope sheave mounting seat 2 is located within the upper-lower position of tensioning wheel 1 or holds Flat, the top and bottom that rope sheave mounting seat 2 is set in the present embodiment maintain an equal level in the top and bottom of tensioning wheel 1, the pressure respectively Contracting spring 14 is arranged in rope sheave mounting seat 2 so that compression spring 14 uses tensile force with the slow slinky spring of elongation decay.

The upper-lower position of above-mentioned rope sheave mounting seat 2 is located within the upper-lower position of tensioning wheel 1 or maintains an equal level, and refers to setting rope sheave The top of mounting seat 2 is less than or maintained an equal level in the top of tensioning wheel 1, and the bottom of rope sheave mounting seat 2 is higher than or maintains an equal level in tensioning wheel 1 Bottom, the i.e. upper-lower position of rope sheave mounting seat 2 are without departing from the upper-lower position of tensioning wheel 1.

The utility model is used for the spring-loaded tensioners of elevator governor, and the upper-lower position for setting rope sheave mounting seat 2 is equal Without departing from the upper-lower position of tensioning wheel 1, and compression spring 14 is arranged in rope sheave mounting seat 2 so that the height of compression spring 14 Degree is unrelated with the whole height of tensioning apparatus, does not interfere with the height of vertical interference part, and because the height of tensioning wheel 1 is enough Greatly, therefore without using stumpy spring, but tensile force may be selected with the slow not only thin but also long soft bullet of elongation decay Spring, so that compression spring 14 can keep enough tensile forces during normal extension；The upper of rope sheave mounting seat 2 is set in addition It is the next setting within the upper-lower position of tensioning wheel 1 or maintaining an equal level, and guidance set 3 both sides and compression spring 14 avoid safety The upright projection of link gear 17 is clamped, therefore the height of vertical interference part only considers that the diameter plus rope sheave of tensioning wheel 1 freely sink The distance of drop, i.e., the height reduction of vertical interference part, so as to also cause that requirement of the tensioning apparatus to pit depth is reduced； In addition, it is easier compared to re-mounting as tensile force source using spring, because being originated as tensile force using counterweight When mounted, due to the presence of balance weight, staff need to lift the tensioning apparatus of about 30KG and be kept for a period of time could The installation and adjustment of speed limiter wire rope are carried out, and spring self-lock is significantly reduced installer's by spring-loaded tensioners Labour intensity and work difficulty.

Preferably, the guidance set 3 includes upper lower fixed seat 9,10 and is arranged on lower fixed seat 9, between 10 The guide post 13 for guiding the upper and lower displacement campaign of rope sheave mounting seat 2, the height of the upper lower fixed seat 9,10 and tensioning wheel 1 Diameter and the free settling of tensioning wheel 1 needed for distance match, the front and back support 4,5 of the rope sheave mounting seat 2 it is horizontal up and down Beam 6,7 is slidably located on guide post 13, front and rear in the present embodiment to be provided with four guide posts 13, the two of the tensioning wheel 1 altogether Side be located at before and after between two groups of guide posts 13, the upper lower fixed seat 9,10 is provided with for mutually fixed with cage guide 16 Lower fixation kit 15,30, upper and lower fixation kit 15,30 includes that be connected with cage guide 16 respectively first is straight in the present embodiment Gusset 25 and the second L-square 26 being connected with upper lower fixed seat 9,10.Tensioning apparatus is arranged on cage guide 16 by the setting On, change traditional mode that swell fixture fixation tensioning apparatus is made to pit, enter such that it is able to avoid waterproof layer from being punched Water destruct electrical equipment.

Preferably, one end of each guide post 13 is through upper fixed seat 9 and is fixed on by upper lower nut 27 upper solid In reservation 9.The setting can make the fixation of each guide post 13 more facilitate firm.

Preferably, the upper and lower fixation kit 15,30 also is located at outside the upright projection of safety tongs link gear 17, should Setting can avoid the height of the fixation kit vertical interference part of increase, reduce the requirement to pit depth, can be seen by Fig. 6, Fig. 7 Arrive, the both sides of the guidance set 3 and compression spring 14 are close at the shaft core position of tensioning wheel 1 so that both are located at safety The right side of the upright projection of link gear 17 is clamped, so that upper lower fixed seat 9, the 10, top of each guide post 13 avoids safety The upright projection of link gear 17 is clamped, the first L-square 25 of the upper and lower fixation kit is located at hanging down for safety tongs link gear 17 The rear side of shadow is delivered directly, the second L-square 26 is located at the right side of the upright projection of safety tongs link gear 17, so that fixing up and down Component 15,30 also avoids the upright projection of safety tongs link gear 17, therefore guidance set 3, compression spring 14 and solid up and down Determine component 15,30 and avoid the upright projection of safety tongs link gear 17, therefore the height of vertical interference part, drop can be reduced The low requirement to pit depth.

Preferably, the middle part of the guide post 13 is from top to bottom arranged with fastener and compresses piece 24, the pressure successively Contracting spring 14 is set in outside guide post 13 and top offsets with piece 24 is compressed, and bottom offsets with the bottom of rope sheave mounting seat 2, described Fastener with compress piece 24 be connected for adjust and fixed compression spring 14 tip position.The setting causes compression spring 14 The regulation of fixed simple and tensile force is very flexible.

Preferably, the fastener is double nut 23.Setting double nut 23 can conveniently install, the fastening spiral shell in double nut Female 28 tip positions for being used to fix compression spring 14, the limitation nut 29 in double nut before steel wire rope tightens up tensioning wheel 1, Limitation rope sheave mounting seat 2 is oppositely oriented the slide downward of bar 13, the relative initial position of each part of tensioning apparatus is determined to pacify Dress, and after steel wire rope tightens up tensioning wheel 1, limitation nut 29 is threaded to and offseted with clamp nut 28, so that rope sheave is installed Seat 2 can be oppositely oriented bar 13 and slide.

Preferably, also including the safety protection switch 18 on lower fixed seat 10, and installed installed in rope sheave On seat 2 for moving down when the triggering action of safety protection switch 18 hit plate 19, the plate 19 that hits is with safety protection switch 18 Switch is constant apart from D4 and the distance between bottom less than tensioning wheel 1 and lower fixed seat 10 D1, and the plate 19 that hits is protected with safety The switch of shield switch 18 apart from D4, equal to hit plate 19 from initial position A reach B at the triggering action of safety protection switch 18 away from From, the initial position A refers to that tensioning apparatus is just loaded onto, when steel wire rope does not also produce elongation, the position where hitting plate 19, Safety protection switch 18 can be using the model QM-TV10H236-11z of Nantong Qimeng Electric Appliance Co., Ltd.'s production in the present embodiment Travel switch, hit plate 19 and be separated by an intersegmental trigger unit 20 and connecting portion 21 away from D2 up and down to be formed in middle part bending, it is described The connecting portion 21 and the bottom of rope sheave mounting seat 2 for hitting plate 19 are fixed, and trigger unit 20 is located on connecting portion 21 for being touched when moving down Hair safety protection switch 18, safety protection switch 18 is fixed on lower fixed seat 10 so that safeguard protection by a switch bracket 22 Space D 3 is formed between switch 18 and lower fixed seat 10, as long as the connecting portion 21 that will so hit plate 19 is installed to rope sheave mounting seat 2 Bottom on, safety protection switch 18 is installed on lower fixed seat 10 by switch bracket 22, just can make to hit plate 19 with safety Switch between protection switch 18 is constant apart from D4, without regulation, so that protection caused by switch distance regulation can be avoided improper Failure.

Preferably, it is described hit plate 19 support to safety protection switch 18 lower limit position C when, the bottom of the tensioning wheel 1 Portion offsets with lower fixed seat 10.The setting can effectively protect safety protection switch 18, it is not damaged.

Preferably, it is described hit plate 19 positioned at initial position A when, meeting 8 times of the disrumpent feelings safety coefficient of speed limiter wire rope On the premise of, the initial tension of compression spring 14 is adjusted to 1.5 times of tensile force F0 needed for theory, the plate 19 that hits is with peace The switch of full protection circuit-breaker 18 is 50mm-100mm apart from D4, and the plate 19 that hits reaches B at the triggering action of safety protection switch 18 When, the tensile force of the compression spring 14 is still greater than or equal to tensile force F0 needed for theory.The slinky spring that the setting is used is expired After sufficient elongation reaches 50-100mm, tensile force is decayed and is not more than tensile force F0 needed for 0.5 times of theory, so that opening after decaying Clamp force still meets the requirement of tensile force F0 needed for theory, and due to hitting plate 19 with the switch of safety protection switch 18 apart from D4 Considerably increase, safety protection switch 18 can be prevented effectively from and send error signal.

Preferably, being provided with an intersegmental gap D5 between the top of the rope sheave mounting seat 2 and upper fixed seat 9 to suppress tensioning Jumped on wheel 1.This is arranged on that elevator starts or braking causes tensioning wheel 1 upwards when takeofing, and amount of spring compression increase, i.e. pretightning force increase Plus and make on tensioning wheel 1 jump suppressed, equivalent to tensioning wheel 1 apply a reverse cushion effect, so as to avoid rope sheave The impact for bringing is bumped against at the top of mounting seat 2 with the hardness of upper fixed seat 9, can better ensure that the stability of operation.

In the present embodiment, theoretical required tensile force F0 is set to 30N, hits the switch distance of plate 19 and safety protection switch 18 D4 is set to 80mm, and the distance between the bottom of tensioning wheel 1 and lower fixed seat 10 D1 are set to 100mm, and D1 is protected according to safety The lower limit position C of shield switch 18 is obtained, and compression spring 14 uses carbon spring steel, a diameter of 1.5mm of compression spring 14, Coefficient of elasticity is 0.375N/mm, is highly 350mm under nature, after compression 240mm, is highly changed into 110mm, hits plate 19 When at initial position A, tensile force is set to 1.5F0, is acted when rope stretch 80mm reaches triggering safety protection switch 18 When at place B, tensile force is obtained still greater than F0.

This tensioning apparatus splits into three parts before dispatching from the factory：Top mounting subassembly 15 is arranged on upper fixed seat 9, is formed Upper constraint component 31；Lower fixation kit 30 and safety protection switch 18 are arranged on lower fixed seat 10, lower constraint component is formed 33；Remaining part is installed together to form tension part 32；In tension part 32, plate 19 is hit installed in rope sheave mounting seat 2 Sill 7 upper surface on, the clamp nut 28 in double nut 23 be fixed on compress piece 24 top so that compression spring 14 Just compressed in place by design requirement before dispatching from the factory, and the limitation nut 29 in double nut 23 is fixed on the upper horizontal stroke of rope sheave mounting seat 2 The bottom of beam 6, the slide downward of bar 13 is oppositely oriented to limit rope sheave mounting seat 2, enables the initial position of rope sheave mounting seat 2 solid It is fixed；

After dispatching from the factory, installer need to only follow the steps below：

A () fixes the lower fixation kit 30 of lower constraint component 33 and cage guide 16, and by lower fixed seat 10 and be tensioned The guide post 13 of part 32 is fixed；

B () fixes the guide post 13 of tension part 32 with the upper fixed seat 9 of upper constraint component 31, and by top mounting subassembly 15 are fixed on cage guide 16；

C () tightens up speed limiter wire rope, and the limitation nut 29 in double nut 23 is unclamped, and is threaded at clamp nut 28 .

Whole installation process is only needed to tighten in associated fasteners, a few minutes and can completed, and substantially reduces installation difficulty While improve installation effectiveness.

Claims (9)

1. a kind of spring-loaded tensioners for elevator governor, including tensioning wheel (1), rope sheave mounting seat (2), guidance set (3) and compression spring (14), in rope sheave mounting seat (2), the rope sheave mounting seat (2) is arranged on the tensioning wheel (1) Slided up and down on guidance set (3) and along guidance set (3), it is characterised in that：The both sides of the guidance set (3) and compression bullet The shaft core position that spring (14) is close to tensioning wheel (1) sentences the upright projection for avoiding safety tongs link gear (17), the rope sheave The upper-lower position of mounting seat (2) is located within the upper-lower position of tensioning wheel (1) or maintains an equal level, and the compression spring (14) is installed in rope So that compression spring (14) uses tensile force with the slow slinky spring of elongation decay in wheel mounting seat (2).

2. a kind of spring-loaded tensioners for elevator governor according to claim 1, it is characterised in that：It is described to lead To component (3) including upper lower fixed seat (9,10) and be arranged between lower fixed seat (9,10) for guiding rope sheave to pacify Fill seat (2) upper and lower displacement campaign guide post (13), the upper lower fixed seat (9,10) be provided with for cage guide (16) The fixation kit up and down (15,30) mutually fixed,

3. a kind of spring-loaded tensioners for elevator governor according to claim 2, it is characterised in that：On described Lower fixation kit (15,30) also is located at outside the upright projection of safety tongs link gear (17).

4. a kind of spring-loaded tensioners for elevator governor according to claim 2, it is characterised in that：It is described to lead Fastener is from top to bottom arranged with successively to the middle part of bar (13) and piece (24) is compressed, and the compression spring (14) is set in guiding Bar (13) outward and top with compress piece (24) offset, bottom offsets with the bottom of rope sheave mounting seat (2), the fastener with compression Piece (24) be connected for adjust and fixed compression spring (14) tip position.

5. a kind of spring-loaded tensioners for elevator governor according to claim 4, it is characterised in that：It is described tight Firmware is double nut (23).

6. a kind of spring-loaded tensioners for elevator governor according to claim 2, it is characterised in that：Also include Safety protection switch (18) on lower fixed seat (10), and in rope sheave mounting seat (2) for moving down when What triggering safety protection switch (18) was acted hits plate (19), described to hit plate (19) with the switch of safety protection switch (18) apart from D4 The distance between constant and bottom less than tensioning wheel (1) and lower fixed seat (10) D1.

7. a kind of spring-loaded tensioners for elevator governor according to claim 6, it is characterised in that：It is described to hit When plate (19) is to lower limit position C to safety protection switch (18), bottom and lower fixed seat (10) phase of the tensioning wheel (1) Support.

8. a kind of spring-loaded tensioners for elevator governor according to claim 6, it is characterised in that：It is described to hit When plate (19) is positioned at initial position A, on the premise of 8 times of the disrumpent feelings safety coefficient of speed limiter wire rope is met, by compression spring (14) initial tension is adjusted to 1.5 times of tensile force F0 needed for theory, and the plate (19) that hits is with safety protection switch (18) Switch apart from D4 be 50mm-100mm, it is described hit plate (19) reach triggering safety protection switch (18) action at B when, the compression The tensile force of spring (14) is still greater than or equal to tensile force F0 needed for theory.

9. a kind of spring-loaded tensioners for elevator governor according to claim 2, it is characterised in that：The rope An intersegmental gap D5 is provided between the top of wheel mounting seat (2) and upper fixed seat (9) to suppress to be jumped on tensioning wheel (1).