CN209427912U - Large-tonnage elevator safety gear - Google Patents

Abstract

The utility model discloses a kind of large-tonnage elevator safety gears, belong to elevator technology field, including caliper, control-rod and cage guide, the composed structure of each safety tongs of the utility model is identical, it is distributed on the carriage side where cage guide, caliper inner wall is equipped with quiet pincers block about the symmetrical position of cage guide, the position that the quiet pincers block of caliper inner wall is corresponded on control-rod is equipped with dynamic pincers block, dynamic pincers block and quiet clamp are provided with guiding ball between the nearest forward surface of block, nearest forward surface is inclined in vertical plane, dynamic pincers block is provided with damping layer in face of cage guide on one side.The safety tongs of four the utility model is installed in an elevator; it is distributed in top edge and the lower edge of carriage side; after elevator car speed is out of control; when speed reaches more than 1.15 times of setting speed; the dynamic pincers block of four safety tongs vises cage guide simultaneously; it realizes the protection to carriage, improves the safety guarantee performance of the cargo lift of 15 tons of gross mass (P+Q) (P refers to that carriage is self-possessed, and Q refers to payload ratings) or more.

Description

Large-tonnage elevator safety gear

Technical field

The utility model relates to elevator safety gear technical fields, more particularly to a kind of large-tonnage elevator safety gear.

Background technique

Elevator safety gear is widely used in different elevators as one of barrier for ensureing elevator safety.Elevator occurs Failure, the uplink that exceeds the speed limit or when unexpected dramatic decrease, when speed reaches the movement speed of limiter of speed setting, limiter of speed handling safety Pincers clamping guide-rail brakes lift car, so that elevator car speed slows to halted state, prevents the hair of contingency It is raw.At present the gross mass (P+Q) (P refers to that carriage is self-possessed, and Q refers to payload ratings) of country's cargo lift generally at 15 tons hereinafter, Reach 15 tons or more of large-tonnage load-carrying elevator for (P+Q) value, because technical requirements are higher, and safety guarantee is stringenter, For this field of large-tonnage elevator safety gear, also compare shortcoming at this stage.

Utility model content

The technical issues of the utility model solves is to provide a kind of large-tonnage elevator safety gear of twin-stage braking.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of large-tonnage elevator safety gear, including Caliper, control-rod and cage guide, the caliper upper inside wall are equipped with the first quiet pincers block, institute about cage guide symmetric position It states caliper inner wall lower and the second quiet pincers block is installed about cage guide symmetric position, the control-rod top corresponds to caliper inner wall The position of first quiet pincers block is equipped with the first dynamic pincers block, and the control-rod lower part corresponds to the position peace of the quiet pincers block of caliper inner wall second Equipped with the second dynamic pincers block, the described first dynamic pincers block and the first quiet clamp are provided with guiding ball between the nearest forward surface of block, described Second dynamic pincers block and the second quiet clamp are provided with guiding ball between the nearest forward surface of block, the described first dynamic pincers block and the second dynamic pincers Block is provided with damping layer in face of cage guide on one side.Two groups be arranged inside caliper amount to four brake caliper blocks, in two groups of controls Bar processed acts on lower two groups of brake caliper blocks and vises cage guide simultaneously, increases the frictional force of braking, enables lift car out of control It smoothly stops in a short time.

Further, the cross section of the described first dynamic pincers block and the first quiet pincers block is right-angled trapezium, right-angled trapezium Oblique waist is the first dynamic pincers block and the nearest forward surface of the first quiet pincers block, the described first dynamic pincers block and nearest opposite of the first quiet pincers block Face is parallel to each other；The cross section of described second dynamic pincers block and the second quiet pincers block is right-angled trapezium, and the oblique waist of right-angled trapezium is the Two dynamic pincers blocks and the nearest forward surface of the second quiet pincers block, the described second dynamic pincers block and the second quiet pincers block it is nearest forward surface it is mutually flat Row.

Further, the described first dynamic pincers block and the second dynamic pincers block are in same vertical direction.

Further, the caliper is separately mounted to the top edge of lift car side cage guide position under Edge.

The beneficial effects of the utility model are: a kind of large-tonnage elevator safety gear of the utility model, moves pincers block and quiet pincers Guiding ball is installed between block, becomes sliding friction and makes dynamic pincers block steadily convenient when moving into rolling friction；Dynamic pincers block contact Cage guide side is provided with damping layer, improves wearability, while damping；Two groups of brake caliper blocks are installed inside caliper, two Group brake caliper block can control-rod drive it is next react on cage guide, realize Two-level Control, increase safety tongs can Control weight, enhance the reliability and stability of braking, for (P+Q) > 15000KG or more load-carrying elevator (P refer to carriage from Weight, Q refers to payload ratings) or nominal load capacity 8000KG or more load-carrying elevator, the safety tongs of the utility model has Good braking effect.

Detailed description of the invention

Fig. 1 is a kind of large-tonnage elevator safety gear cross section structure schematic diagram of the utility model；

Fig. 2 is a kind of large-tonnage elevator schematic view of the mounting position of the utility model；

In the figure, it is marked as the dynamic pincers of the dynamic pincers block 301, second of the 100, first quiet pincers block 202, first of quiet pincers block 201, second of caliper Block 302, control-rod 400, guiding ball 500, cage guide 600, damping layer 700.

Specific embodiment

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

A kind of large-tonnage elevator safety gear as depicted in figs. 1 and 2, including caliper 100, control-rod 400 and cage guide 600,100 upper inside wall of caliper is equipped with the first quiet pincers block 201, the caliper 100 about 600 symmetric position of cage guide Inner wall lower is equipped with the second quiet pincers block 202 about 600 symmetric position of cage guide, and 400 top of control-rod corresponds to caliper The position of 100 the first quiet pincers blocks 201 of inner wall is equipped with the first dynamic pincers block 301, and 400 lower part of control-rod corresponds in caliper 100 The position of the quiet pincers block 202 of wall second is equipped with the second dynamic pincers block 302, and the described first dynamic pincers block 301 and the first quiet pincers block 201 are recently Forward surface between be provided with guiding ball 500, the described second dynamic pincers block 302 and the nearest forward surface of the second quiet pincers block 202 it Between be provided with guiding ball 500, the described first dynamic pincers block 301 and the second dynamic pincers block 302 being provided on one side in face of cage guide Damping layer 700.The elevator safety gear is separately mounted to top edge and the lower edge of lift car side, two sides of lift car Face has same safety tongs to arrange, twin-stage braking, stability is more preferable when lift car can be made to brake, and very for load Big carriage also can be coped with easily, and carriage range ability is shorter after braking；Dynamic pincers block and 600 contact surface of cage guide are installed There is damping layer 700, frictional force increases, while mitigating noise when friction and vibration, and the material of damping layer is not unique, can be according to reality Border demand is changed to wear-resisting, damping, the moderate other materials of hardness, such as rubber.For for (P+Q) > 15000KG's or more The load-carrying elevator of load-carrying elevator (P refers to that carriage is self-possessed, and Q refers to payload ratings) or nominal load capacity 8000KG or more, when The carriage speed of service is when demarcating 1.15 times of the speed of service, and triggering limiter of speed manipulation and control bar moves up pincers block, into And safety tongs vises cage guide, realization stops to lift car.

On the basis of the above, as shown in Figure 1, the cross section of the described first dynamic pincers block 301 and the first quiet pincers block 201 is straight Angle is trapezoidal, and the oblique waist of right-angled trapezium is the first dynamic pincers block 301 and the nearest forward surface of the first quiet pincers block 201, the described first dynamic pincers Block 301 and the first quiet nearest forward surface of block 201 that clamps are parallel to each other；The cross of described second dynamic pincers block 302 and the second quiet pincers block 202 Section is right-angled trapezium, and the oblique waist of right-angled trapezium is the second dynamic pincers block 302 and the nearest forward surface of the second quiet pincers block 202, institute It states the second dynamic pincers block 302 and the second quiet nearest forward surface of block 202 that clamps is parallel to each other.Dynamic pincers block and the nearest forward surface of quiet pincers block Inclined direction can also be symmetrical in perpendicular with current inclined direction, i.e., vertical direction is tilted to the right, this time control Bar 400 processed moves downward, and can also reach identical braking effect.

On the basis of the above, as shown in Figure 1, the described first dynamic pincers block 301 and the second dynamic pincers block 302 are in same vertical side To.Two groups of control-rods 400 connect two groups and amount to four calipers 100, realize the movement simultaneously to dynamic pincers block, control-rod 400 is rigid Property connecting rod, guarantees the reliability and stability of safe clamp brake.

On the basis of the above, as shown in Fig. 2, the caliper 100 is separately mounted to 600 institute of lift car side cage guide Top edge and lower edge in position.Common safety tongs is all mounted in the interposition of the carriage side where control-rod 400 It sets, this large-tonnage elevator safety gear installation site is compared with traditional installation site, to the controlling and security guarantee of carriage There is very big promotion.

Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap Containing being within the protection scope of the utility model.

Claims (4)

1. a kind of large-tonnage elevator safety gear, including caliper, control-rod and cage guide, it is characterised in that: the caliper inner wall Top is equipped with the first quiet pincers block about cage guide symmetric position, and the caliper inner wall lower is about cage guide symmetric position Second quiet pincers block is installed, the position that the control-rod top corresponds to the quiet pincers block of caliper inner wall first is equipped with the first dynamic pincers block, The position that the control-rod lower part corresponds to the quiet pincers block of caliper inner wall second is equipped with the second dynamic pincers block, the described first dynamic pincers block and the It is provided with guiding ball between the one nearest forward surface of quiet pincers block, the described second dynamic pincers block and the nearest forward surface of the second quiet pincers block Between be provided with guiding ball, the described first dynamic pincers block and the second dynamic pincers block are provided with damping layer in face of cage guide on one side.

2. a kind of large-tonnage elevator safety gear as described in claim 1, it is characterised in that: the described first dynamic pincers block and first quiet The cross section of pincers block is right-angled trapezium, and the oblique waist of right-angled trapezium is the first dynamic pincers block and the nearest forward surface of the first quiet pincers block, Described first dynamic pincers block and the first quiet nearest forward surface of block that clamps are parallel to each other；The cross of described second dynamic pincers block and the second quiet pincers block Section is right-angled trapezium, and the oblique waist of right-angled trapezium is the second dynamic pincers block and the nearest forward surface of the second quiet pincers block, and described second Dynamic pincers block and the second quiet nearest forward surface of block that clamps are parallel to each other.

3. a kind of large-tonnage elevator safety gear as described in claim 1, it is characterised in that: the described first dynamic pincers block and second moves Pincers block is in same vertical direction.

4. a kind of large-tonnage elevator safety gear as described in claim 1, it is characterised in that: the caliper is separately mounted to elevator The top edge of carriage side cage guide position and lower edge.