CN205367378U - Wear -resisting offset -type safety tongs - Google Patents
Wear -resisting offset -type safety tongs Download PDFInfo
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- CN205367378U CN205367378U CN201620179176.2U CN201620179176U CN205367378U CN 205367378 U CN205367378 U CN 205367378U CN 201620179176 U CN201620179176 U CN 201620179176U CN 205367378 U CN205367378 U CN 205367378U
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- caliper
- storage tank
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- oil storage
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Abstract
The utility model discloses a wear -resisting offset -type safety tongs, including support, first oil storage tank, second oil storage tank and oil pipe intercommunication, be equipped with first hydraulic pump, first valve and second hydraulic pump on the oil pipe, being connected with the cavity on the first oil storage tank, being equipped with the piston in the cavity, be equipped with the piston rod on the piston, be equipped with the first pincers body on the piston rod, the first pincers body upward is connected with the second pincers body through a plurality of elastic components, is equipped with the recess on the second pincers body, is equipped with friction cylinder in the recess, second oil storage tank warp the 3rd oil pipe be connected with the no pole chamber of cavity, is equipped with the second valve on the 3rd oil pipe, has the pole chamber through fourth oil pipe and the 3rd oil pipe intercommunication, the support coparallel is equipped with two dead levers, and the first pincers body and the second pincers body slide and set up on two dead levers. The utility model has the characteristics of the impact force is less, and the coefficient of friction of clamping face is great, prevents elevator car speed reduction safe and stable, the security is higher, the travelling comfort is better and prevents efficiency higher.
Description
Technical field
This utility model relates to safety protection apparatus for elevator technical field, particularly a kind of wear-resisting offset-type safety tongs.
Background technology
Safety tongs is a kind of mechanical safety member making car or counterweight stop motion, and when elevator appearance accident during overspeed, limiter of speed triggers safety tongs action.Current elevator safety gear is generally adopted instantaneous safety mode, when elevator breaks down, safety tongs moment locking steel wire rope or guide rail, especially to large-tonnage elevator, the frictional force that moment produces is very big, and guide rail, steel wire rope or car moment are severely affected power and are easily damaged；The coefficient of friction of simultaneously current elevator safety gear clamping face is less, and the chucking power that clamping face provides cannot meet the car that some deadweights are bigger with load-carrying, it is impossible to the effective misoperation preventing lift car, there is very big potential safety hazard.Therefore, current elevator safety gear exists, and makes the problem that relatively big and clamping face the coefficient of friction of guide rail, steel wire rope or car impact force is less.
Utility model content
The purpose of this utility model is in that, a kind of wear-resisting offset-type safety tongs is provided, it has makes guide rail, steel wire rope or car impact force less, and the coefficient of friction of clamping face is relatively big, prevents lift car deceleration safety and steady, safety is higher, comfortableness is better and prevents the feature that efficiency is higher.
The technical solution of the utility model: a kind of wear-resisting offset-type safety tongs, including support, support is provided with the first oil storage tank and the second oil storage tank, through two first oil pipe connections between first oil storage tank and the second oil storage tank, two first oil pipes are all sequentially provided with the first hydraulic pump, the first valve and the second hydraulic pump, first hydraulic pump is positioned at the first oil storage tank side, the first valve and the second hydraulic pump and is positioned at the second oil storage tank side；Two, the both sides of the first oil storage tank the second oil pipe is connected to cavity respectively, piston it is provided with in cavity, piston is provided with piston rod, piston rod is provided with the first caliper, first caliper is connected to the second caliper through multiple elastic components, the end face of the second caliper is provided with multiple groove, is provided with friction column in groove, and friction column protrudes the end face of the second caliper；Described piston rod is positioned at the rod chamber of cavity, two second oil pipes are connected with the rodless cavity of cavity, two, the both sides of the second oil storage tank the 3rd oil pipe is also connected with rodless cavity, the one end being positioned at rodless cavity on two the 3rd oil pipes is equipped with the second valve, and said two rod chamber is through two the 4th oil pipes and corresponding two the 3rd oil pipe connections；Parallel on described support it is provided with two fixing bars, parallel between two fixing bars being provided with two montants, montant is provided with through hole, and described piston rod is located in through hole, the first described caliper and the second caliper are between two montants, and are slidably arranged on two fixing bars.
In aforesaid wear-resisting offset-type safety tongs, described two first oil pipes, two second oil pipes, two the 3rd oil pipes, two the 4th oil pipes, two cavitys, two the first calipers and two the second calipers are arranged relative to the intermediate symmetry of safety tongs respectively.
In aforesaid wear-resisting offset-type safety tongs, between described first caliper and the second caliper, the cross section of connection is triangle, first caliper and the second caliper are all correspondingly arranged on and organize mounting groove more, contiguous block it is provided with in mounting groove, described elastic component is spring, between two contiguous blocks that spring is corresponding on the first caliper and the second caliper.
In aforesaid wear-resisting offset-type safety tongs, described friction column is made up of aluminium alloy, and it is 0.1～0.4mm that friction column protrudes the length of the second caliper end face.
Compared with prior art, this utility model, by arranging the first oil storage tank and the second oil storage tank on the support of safety tongs, adopts the mode of hydraulic pressure, by the control to hydraulic pump, controls the movement of piston, and then controls the degree of tightness between safety tongs clamping face；Retained part in this utility model is mainly made up of the first caliper and the second caliper, elastic component is adopted to connect between first caliper and the second caliper, slide between two fixing bars and arrange, so when safety tongs works, it is with the dual progressive form gripping elevator guide rails gradually of hydraulic pressure and elastic component, avoid the impulsive force that instantaneous safety is excessive, to guide rail, the damage that steel wire rope or car produce, the mode of this dual progressive stop elevator car, make the deceleration safety and steady of lift car, avoid instantaneous formula stop, to the damage of article and injury to passenger in lift car, safety is higher, comfortableness is better.This utility model is provided with multiple groove on the clamping end face of the second caliper, friction column it is provided with in groove, and friction column protrudes the end face of the second caliper, the coefficient of friction of safety tongs clamping face is increased with this, together with hydraulic system, can effectively prevent the misoperation of lift car, it is possible to meet the lift car of bigger deadweight and load-carrying, have the advantages that stop efficiency is higher.Therefore, this utility model has makes guide rail, steel wire rope or car impact force less, and the coefficient of friction of clamping face is relatively big, prevents lift car deceleration safety and steady, safety is higher, comfortableness is better and prevents the feature that efficiency is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the attachment structure schematic diagram of the first caliper and the second caliper；
Fig. 3 is the structural representation of the second caliper clamping face.
Being labeled as in accompanying drawing: 1-support, 2-the first oil storage tank, 3-the second oil storage tank, 4-the first oil pipe, 5-the first hydraulic pump, 6-the first valve, 7-the second hydraulic pump, 8-the second oil pipe, 9-cavity, 10-piston, 11-piston rod, 12-the first caliper, 13-elastic component, 14-the second caliper, 15-groove, 16-friction column, 17-rodless cavity, 18-rod chamber, 19-the 3rd oil pipe, 20-the second valve, 21-the 4th oil pipe, 22-fixes bar, 23-montant, 24-through hole, 25-mounting groove, 26-contiguous block, 27-guide rail.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further described, but is not intended as the foundation to this utility model restriction.
Embodiment.A kind of wear-resisting offset-type safety tongs, constitute as shown in Figure 1, Figure 2 and Figure 3, including support 1, support 1 is provided with the first oil storage tank 2 and the second oil storage tank 3, connect through two first oil pipes 4 between first oil storage tank 2 and the second oil storage tank 3, all being sequentially provided with the first hydraulic pump the 5, first valve 6 and the second hydraulic pump 7 on two first oil pipes 4, the first hydraulic pump 5 is positioned at the first oil storage tank 2 side, and the first valve 6 and the second hydraulic pump 7 are positioned at the second oil storage tank 3 side；Two, the both sides of the first oil storage tank 2, second oil pipe 8 is connected to cavity 9 respectively, piston 10 it is provided with in cavity 9, piston 10 is provided with piston rod 11, piston rod 11 is provided with the first caliper 12, first caliper 12 is connected to the second caliper 14 through multiple elastic components 13, the end face of the second caliper 14 is provided with multiple groove 15, is provided with friction column 16 in groove 15, and friction column 16 protrudes the end face of the second caliper 14；Cavity 9 is divided into rodless cavity 17 and rod chamber 18 by described piston 10, piston rod 11 is positioned at rod chamber 18, two second oil pipes 8 are connected with rodless cavity 17, two, the both sides of the second oil storage tank 3 the 3rd oil pipe 19 is also connected with rodless cavity 17, the one end being positioned at rodless cavity 17 on two the 3rd oil pipes 19 is equipped with the second valve 20, and said two rod chamber 18 connects with corresponding two the 3rd oil pipes 19 through two the 4th oil pipes 21；Parallel on described support 1 it is provided with two fixing bars 22, parallel between two fixing bars 22 it is provided with two montants 23, montant 23 is provided with through hole 24, described piston rod 11 is located in through hole 24, the first described caliper 12 and the second caliper 14 are between two montants 23, and are slidably arranged on two fixing bars 22.
4, two second oil pipe, 19, two the 4th oil pipes of 8, two the 3rd oil pipes, 9, two the first calipers 12 of 21, two cavitys of described two first oil pipes and two the second calipers 14 are arranged relative to the intermediate symmetry of safety tongs respectively.Between described first caliper 12 and the second caliper 14, the cross section of connection is triangle, first caliper 12 and the second caliper 14 are all correspondingly arranged on many group mounting grooves 25, contiguous block 26 it is provided with in mounting groove 25, described elastic component 13 is spring, between two contiguous blocks 26 that spring is corresponding on the first caliper 12 and the second caliper 14.Described friction column 16 is made up of aluminium alloy, and it is 0.1～0.4mm that friction column 16 protrudes the length of the second caliper 14 end face.The power that first hydraulic pump 5 and the second hydraulic pump 7 provide is fully able to meet and makes hydraulic system stop elevator car.
Operation principle of the present utility model is:
nullElevator is under normal operating conditions，Guide rail 27 moves freely in the gap between two the second calipers 14，When elevator occurs abnormal，Limiter of speed action，The first hydraulic pump 5 controlled on two the first oil pipes 4 by electrical equipment control mechanism is started，Now two the first valves 6 and two the second valves 20 are in closed mode，Two the second hydraulic pumps 7 are also at halted state，Oil in first oil storage tank 2 is pressed into rodless cavity 17，Piston 10 moves，Piston rod 11 drives the first caliper 12 direction guiding rail 27 gradual close，Under the effect of multiple springs，First caliper 12 promotes the second caliper 14 direction guiding rail 27 close，Until the friction column 16 on two the second calipers 14 contacts with guide rail 27，Piston 10 continues direction guiding rail 27 direction and moves，The active force of spring is gradually increased，The active force of guide rail 27 is also gradually increased by safety tongs，Powerful hydraulic system active force strengthens gradually，Until safety and steady by complete for lift car stop on guide rail 27.After elevator faults is removed by maintainer, controlling electrical equipment control mechanism again makes two the first hydraulic pumps 5 fail, control two the second hydraulic pumps 7 again to work, oil in second oil storage tank 3 is pressed into rod chamber 18, piston 10 moves, until safety tongs returns to original state, control two the second hydraulic pumps 7 and stop, completing a cycle of operation.
This utility model, by arranging the first oil storage tank 2 and the second oil storage tank 3 on the support 1 of safety tongs, adopts the mode of hydraulic pressure, by the control to hydraulic pump, controls the movement of piston 10, and then controls the degree of tightness between safety tongs clamping face；Retained part in this utility model is mainly made up of the first caliper 12 and the second caliper 14, elastic component 13 is adopted to connect between first caliper 12 and the second caliper 14, slide between two fixing bars 22 and arrange, so when safety tongs works, it is with dual progressive form gripping elevator guide rails 27 gradually of hydraulic pressure and elastic component 13, avoid the impulsive force that instantaneous safety is excessive, to guide rail 27, the damage that steel wire rope or car produce, the mode of this dual progressive stop elevator car, make the deceleration safety and steady of lift car, avoid instantaneous formula stop, to the damage of article and injury to passenger in lift car, safety is higher, comfortableness is better.This utility model is provided with multiple groove 15 on the clamping end face of the second caliper 14, friction column 16 it is provided with in groove 15, and friction column 16 protrudes the end face of the second caliper 14, the coefficient of friction of safety tongs clamping face is increased with this, together with hydraulic system, can effectively prevent the misoperation of lift car, it is possible to meet the lift car of bigger deadweight and load-carrying, have the advantages that stop efficiency is higher.Therefore, this utility model has makes guide rail 27, steel wire rope or car impact force less, and the coefficient of friction of clamping face is relatively big, prevents lift car deceleration safety and steady, safety is higher, comfortableness is better and prevents the feature that efficiency is higher.
Claims (4)
1. a wear-resisting offset-type safety tongs, it is characterized in that: include support (1), support (1) is provided with the first oil storage tank (2) and the second oil storage tank (3), connect through two first oil pipes (4) between first oil storage tank (2) and the second oil storage tank (3), two first oil pipes (4) are all sequentially provided with the first hydraulic pump (5), the first valve (6) and the second hydraulic pump (7), first hydraulic pump (5) is positioned at the first oil storage tank (2) side, the first valve (6) and the second hydraulic pump (7) and is positioned at the second oil storage tank (3) side；Two, the both sides of the first oil storage tank (2) the second oil pipe (8) is connected to cavity (9), piston (10) it is provided with in cavity (9), piston (10) is provided with piston rod (11), piston rod (11) is provided with the first caliper (12), first caliper (12) is connected to the second caliper (14) through multiple elastic components (13), the end face of the second caliper (14) is provided with multiple groove (15), being provided with friction column (16) in groove (15), friction column (16) protrudes the end face of the second caliper (14)；Described piston rod (11) is positioned at the rod chamber (18) of cavity (9), two second oil pipes (8) are connected with the rodless cavity (17) of cavity (9), two, the both sides of the second oil storage tank (3) the 3rd oil pipe (19) is also connected with rodless cavity (17), the one end being positioned at rodless cavity (17) on two the 3rd oil pipes (19) is equipped with the second valve (20), and said two rod chamber (18) is through two the 4th oil pipes (21) and corresponding two the 3rd oil pipe (19) connections；Described support (1) is above parallel is provided with two fixing bars (22), parallel between two fixing bars (22) it is provided with two montants (23), montant (23) is provided with through hole (24), described piston rod (11) is located in through hole (24), described the first caliper (12) and the second caliper (14) are positioned between two montants (23), and are slidably arranged on two fixing bars (22).
2. wear-resisting offset-type safety tongs according to claim 1, it is characterised in that: described two first oil pipes (4), two second oil pipes (8), two the 3rd oil pipes (19), two the 4th oil pipes (21), two cavitys (9), two the first calipers (12) and two the second calipers (14) are arranged relative to the intermediate symmetry of safety tongs respectively.
3. wear-resisting offset-type safety tongs according to claim 1, it is characterized in that: between described first caliper (12) and the second caliper (14), the cross section of connection is triangle, first caliper (12) and the second caliper (14) are all correspondingly arranged on and organize mounting groove (25) more, contiguous block (26) it is provided with in mounting groove (25), described elastic component (13) is spring, and spring is positioned between the first caliper (12) and upper two the corresponding contiguous blocks (26) of the second caliper (14).
4. wear-resisting offset-type safety tongs according to claim 1, it is characterised in that: described friction column (16) is made up of aluminium alloy, and it is 0.1～0.4mm that friction column (16) protrudes the length of the second caliper (14) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179176.2U CN205367378U (en) | 2016-03-09 | 2016-03-09 | Wear -resisting offset -type safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179176.2U CN205367378U (en) | 2016-03-09 | 2016-03-09 | Wear -resisting offset -type safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205367378U true CN205367378U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620179176.2U Active CN205367378U (en) | 2016-03-09 | 2016-03-09 | Wear -resisting offset -type safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205367378U (en) |
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2016
- 2016-03-09 CN CN201620179176.2U patent/CN205367378U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |