CN106966301B - A kind of mechanical overspeed protective device - Google Patents
A kind of mechanical overspeed protective device Download PDFInfo
- Publication number
- CN106966301B CN106966301B CN201710319697.2A CN201710319697A CN106966301B CN 106966301 B CN106966301 B CN 106966301B CN 201710319697 A CN201710319697 A CN 201710319697A CN 106966301 B CN106966301 B CN 106966301B
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- CN
- China
- Prior art keywords
- wheel shaft
- spring
- shaft
- block
- brake valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/02—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of self-applying brakes
- B61H11/04—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of self-applying brakes with brake-applying force derived from rotation of axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
Abstract
A kind of mechanical overspeed protective device, including shell, wheel shaft and hydraulic brake valve, wheel shaft are arranged in shell, are set in an end section of wheel shaft and are movably set with left centrifugal-block and right centrifugal-block by pin shaft, and the other end fixing sleeve of wheel shaft is equipped with gear；Along the tripping spring that has been arranged radially of wheel shaft section between left and right centrifugal-block, the lower end of right centrifugal-block is equipped with light pin；Tripping spring one end is equipped with the adjusting nut for adjusting tripping spring position, and adjusting nut is fixed on wheel shaft, and the other end of the tripping spring is fixedly provided with spring shaft；Spring shaft is mutually clamped with the light pin, is installed with hydraulic brake valve by connecting plate with the corresponding position of spring shaft on shell, brake valve includes the short swing rod for controlling hydraulic brake valve；To guarantee speed limit effect, when spring shaft engaging with the light pin is detached from, spring natural length can ensure that spring shaft withstands short swing rod completely, then triggers hydraulic brake valve and opens, reaches starting brake fluid system.
Description
Technical field
The present invention relates to the manufacturing technology field of mechanical brake device, be applied particularly to crane walking roller with
And the braking equipment of the overspeed protection of mine vehicle, especially a kind of mechanical overspeed protective device.
Background technique
In the prior art, in terms of the braking of mechanical tracks crane and mine vehicle, be all made of brake fluid system into
The passive braking of row, however, rarely having relevant device and skill for the speed-limiting protective device of crane or mine car under emergency condition
Art research.Especially under the generally existing underground working of mine vehicle, for the overspeed protective device of general electronic type,
It plays a role because it needs to charge, does not meet requiring without stringent precondition electric, that open fire cannot be generated for underground working environment.
Based on the above-mentioned demand using under operating condition, the present invention is directed to study a kind of active overspeed protection dress of Purely mechanical
It sets, using novel centrifugal force excitation principle, brake fluid system can actively be started when hypervelocity by mechanical linkage structure,
Reach the technical goal of overspeed protection, and realize the controllability of the overspeed protection system based on adjustable springs structure, greatly
The failure probability of the mechanical overspeed protective device is reduced greatly, there is beneficial effect convenient for safeguarding, is worth large-scale application
It promotes.
Summary of the invention
The present invention is to realize the technical goal illustrated in above-mentioned background technique, studies a kind of mechanical overspeed protection dress
It sets, the wheel speed of crane or mine car is carried out to monitoring and the trigger mechanism of Purely mechanical, is realized without introducing electrification or electronics control
Under the premise of element processed, be completely secured mining equipment use without electricity, without fire stringent operating condition under, realize reliable and stable
Overspeed protection target a kind of mechanical overspeed protective device, triggering can start hydraulic system through the invention when monitoring hypervelocity
Dynamic system, realizes the timely braking of crane or mine car.
The technical scheme adopted by the invention is that: a kind of mechanical overspeed protective device includes shell, wheel shaft and liquid
Brake valve is pressed, the wheel shaft is arranged in the shell, it is characterised in that: set in an end section of the wheel shaft living by pin shaft
Dynamic to be provided with left centrifugal-block and right centrifugal-block, the other end fixing sleeve of the wheel shaft is equipped with gear；
It has been arranged radially tripping spring along the wheel shaft section between the left and right centrifugal-block, the right centrifugal-block
Lower end is equipped with light pin；
Described tripping spring one end is equipped with the adjusting nut for adjusting tripping spring position, and the adjusting nut is fixed in
On the wheel shaft, the other end of the tripping spring is fixedly provided with spring shaft；
The spring shaft and the light pin are mutually clamped setting, pass through on the shell with the corresponding position of the spring shaft
Connecting plate is installed with the hydraulic brake valve, and the brake valve includes the short swing rod for controlling the hydraulic brake valve；
To guarantee speed limit effect, when spring shaft engaging with the light pin is detached from, the spring natural length can
Ensure that spring shaft withstands short swing rod completely, then triggers hydraulic brake valve and open, reach the target of starting brake fluid system.
Further, the wheel shaft is connect by being sheathed on the bearing of wheel shaft medium position with the housing into rotation.
Further, the two sides of the bearing are equipped with elastic washer.
Further, the left and right centrifugal-block is semicircular arc structure, when wheel shaft high-speed rotation, left and right centrifugal-block
Under the influence of centrifugal force, it is separated from each other, right centrifugal-block drives light pins position to move, and ties so that spring shaft engaging with light pin be limited
Structure failure, under the action of tripping spring, spring shaft continues to extend downwardly, and the short swing rod on brake valve is withstood, to trigger liquid
It presses brake valve to open, reaches the technical purpose of mechanical detection wheel shaft revolving speed.
It further, is the linkage effect for guaranteeing gear and wheel shaft, side corresponding with the gear on the wheel shaft
Flat key outstanding is additionally provided on wall, the gear is realized and the wheel shaft unitary rotation by the flat key.It plays enough
Rotation transmission.
Further, it is cylinder shape groove structure that the wheel shaft, which is equipped with the end of the left and right centrifugal-block, described
Left and right centrifugal-block is accommodated in the cylinder shape groove, and the radius of the semicircular arc is less than the cylinder of the axle ends
The internal diameter of connected in star.So, it can be ensured that under centrifugal force effect, when left and right centrifugal-block is separated because of centrifugal force or so, be unlikely to open
Open-width is spent greatly, and security risk is brought.
A kind of mechanical overspeed protective device provided by the invention has the beneficial effect that
The present invention improves research for the braking system of existing crane and mining transportation vehicle, using mechanical
A kind of principle of centrifugal force, centrifugal force generated using wheel shaft rotation of researching and designing, realizes speed-limiting protection, when wheel shaft revolving speed reaches
One timing can realize the opening and closing of hydraulic vehicle brake system by mechanical structure, thoroughly evade the tradition of electric-controlled type actively
The brake structure design method of braking system, for underground special operation condition in use, with positive improvement meaning and significantly
It breaks through, is worth promoting and applying in underground on a large scale, meanwhile, the present apparatus can also be installed additional by being normally applied occasion: mechanical speed limit is protected
Protection unit realizes the speed-limitation structure of Purely mechanical, without passing through sensor or electrical type component underground speed acquisition and electricity
Control triggering braking system, security level are higher.
Detailed description of the invention
Attached drawing 1 is a kind of side, sectional structure diagram of mechanical overspeed protective device of the present invention；
Attached drawing 2 is a kind of Facad structure simplified schematic diagram of mechanical overspeed protective device of the present invention.
Description of symbols:
1, wheel shaft, 2, adjusting nut, 3, tripping spring, 4, spring shaft, 13, shell, 6, hydraulic brake valve, 7, light pin, 8,
Short swing rod, 9, elastic washer, 10, gear, 12, bearing, 15, left centrifugal-block, 14, right centrifugal-block, 16, connecting plate.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, a kind of mechanical overspeed protective device, includes shell 13, wheel shaft 1 and hydraulic brake valve 6, wheel
Axis 1 is arranged in shell 13；
Left centrifugal-block 15 and right centrifugal-block are movably set with by pin shaft as shown in Fig. 2, setting in an end section of wheel shaft 1
14, referring to figure 1, the other end fixing sleeve of wheel shaft 1 is equipped with gear 10；
As shown in Figs. 1-2, tripping spring 3, the right side have been arranged radially along 1 section of wheel shaft between left and right centrifugal-block (15,14)
The lower end of centrifugal-block 14 is equipped with light pin 7；
3 one end of tripping spring is equipped with the adjusting nut 2 for adjusting 3 position of tripping spring, and adjusting nut 2 is fixed in wheel shaft
On 1, the other end of tripping spring 3 is fixedly provided with spring shaft 4；
Spring shaft 4 and light pin 7 are mutually clamped setting, are consolidated with the corresponding position of spring shaft 4 by connecting plate 16 on shell 13
Equipped with hydraulic brake valve 6, brake valve 6 includes the short swing rod 8 for controlling hydraulic brake valve 6；
To guarantee speed limit effect, when the engaging with the light pin 7 of spring shaft 4 is detached from, 3 natural length of spring can ensure that bullet
Spring axis 4 withstands short swing rod 8 completely, then triggers hydraulic brake valve 6 and opens, reaches the target of starting brake fluid system.
Wheel shaft 1 is rotatablely connected by the bearing 12 and shell 13 for being sheathed on 1 medium position of wheel shaft.
The two sides of bearing 12 are equipped with elastic washer 9.
As shown in Fig. 2, left and right centrifugal-block (15,14) is semicircular arc structure, it is left and right when 1 high-speed rotation of wheel shaft
Centrifugal-block (15,14) under the influence of centrifugal force, is separated from each other, and right centrifugal-block 14 drives light pin 7 to be displaced, thus by spring shaft 4
It fails with the engaging position limiting structure of light pin 7, under the action of tripping spring 3, spring shaft 4 continues to extend downwardly, and withstands brake valve 6
On short swing rod 8, thus trigger hydraulic brake valve 6 unlatching, reach the technical purpose of 1 revolving speed of mechanical detection wheel shaft.
For the linkage effect for guaranteeing gear 10 and wheel shaft 1, also set up on side wall corresponding with the gear 10 on wheel shaft 1
There is flat key outstanding (marking in figure), gear 10 is realized by the flat key and 1 unitary rotation of wheel shaft, plays enough rotations
Transmission.
The end that wheel shaft 1 is equipped with the left and right centrifugal-block (15,14) is cylinder shape groove structure, the left and right centrifugation
Block (15,14) is accommodated in the cylinder shape groove, and the radius of the semicircular arc is less than the cylinder shape groove of 1 end of wheel shaft
Internal diameter.So, it can be ensured that under centrifugal force effect, when left and right centrifugal-block (15,14) separates because of centrifugal force or so, be unlikely to
Opening amplitude is excessive, brings security risk.
It is had the beneficial effect that brought by the present apparatus
The present invention improves research for the braking system of existing crane and mining transportation vehicle, using mechanical
A kind of principle of centrifugal force, centrifugal force generated using wheel shaft rotation of researching and designing, realizes speed-limiting protection, when wheel shaft revolving speed reaches
One timing can realize the opening and closing of hydraulic vehicle brake system by mechanical structure, thoroughly evade the tradition of electric-controlled type actively
The brake structure design method of braking system, for underground special operation condition in use, with positive improvement meaning and significantly
It breaks through, is worth promoting and applying in underground on a large scale, meanwhile, the present apparatus can also be installed additional by being normally applied occasion: mechanical speed limit is protected
Protection unit realizes the speed-limitation structure of Purely mechanical, without passing through sensor or electrical type component underground speed acquisition and electricity
Control triggering braking system, security level are higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of mechanical overspeed protective device, includes shell, wheel shaft and hydraulic brake valve, the wheel shaft is arranged in described
In shell, it is characterised in that: it is set in an end section of the wheel shaft and left centrifugal-block and right centrifugal-block is movably set with by pin shaft,
The other end fixing sleeve of the wheel shaft is equipped with gear；
Tripping spring, the lower end of the right centrifugal-block have been arranged radially along the wheel shaft section between the left and right centrifugal-block
Portion is equipped with light pin；
Described tripping spring one end is equipped with the adjusting nut for adjusting tripping spring position, and the adjusting nut is fixed in described
On wheel shaft, the other end of the tripping spring is fixedly provided with spring shaft；
The spring shaft and the light pin are mutually clamped setting, pass through on the shell with the corresponding position of the spring shaft and connect
Plate is installed with the hydraulic brake valve, and the hydraulic brake valve includes the short swing rod for controlling the hydraulic brake valve.
2. a kind of mechanical overspeed protective device according to claim 1, it is characterised in that: on the wheel shaft with the gear
Flat key outstanding is additionally provided on corresponding side wall, the gear is realized and the wheel shaft unitary rotation by the flat key.
3. a kind of mechanical overspeed protective device according to claim 1, it is characterised in that: the wheel shaft is by being sheathed on wheel
The bearing of axis medium position is connect with the housing into rotation.
4. a kind of mechanical overspeed protective device according to claim 3, it is characterised in that: the two sides of the bearing are all provided with
Flexible washer.
5. a kind of mechanical overspeed protective device according to claim 1, it is characterised in that: the wheel shaft is equipped with described
The end of left and right centrifugal-block is cylinder shape groove structure, and the left and right centrifugal-block is accommodated in the cylinder shape groove.
6. a kind of mechanical overspeed protective device according to claim 5, it is characterised in that: the left and right centrifugal-block is
Semicircular arc structure, the radius of the semicircular arc are less than the internal diameter of the cylinder shape groove of the axle ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319697.2A CN106966301B (en) | 2017-05-09 | 2017-05-09 | A kind of mechanical overspeed protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319697.2A CN106966301B (en) | 2017-05-09 | 2017-05-09 | A kind of mechanical overspeed protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106966301A CN106966301A (en) | 2017-07-21 |
| CN106966301B true CN106966301B (en) | 2019-05-07 |
Family
ID=59332054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710319697.2A Active CN106966301B (en) | 2017-05-09 | 2017-05-09 | A kind of mechanical overspeed protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106966301B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497890B (en) * | 2020-04-27 | 2021-02-19 | 河北煤炭科学研究院有限公司 | Endless rope tractor for mine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2036209U (en) * | 1988-04-14 | 1989-04-19 | 铁道部大连机车车辆工厂 | Overspeed protecting apparatus for diesel engine |
| US5513723A (en) * | 1994-07-01 | 1996-05-07 | Harnischfeger Corporation | Double-masted crane with improved brake arrangement |
| CN2876432Y (en) * | 2006-03-13 | 2007-03-07 | 程晋文 | Anti large sliding device of miner's truck |
| WO2008029418A2 (en) * | 2006-09-05 | 2008-03-13 | Ashok Kumar Tiwari | Power brake using wheel motion for generating an auxiliary brake force |
| CN202729746U (en) * | 2012-07-31 | 2013-02-13 | 苏州富士德物流设备有限公司 | Overspeed protective device of stacker cargo-carrying platform |
-
2017
- 2017-05-09 CN CN201710319697.2A patent/CN106966301B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2036209U (en) * | 1988-04-14 | 1989-04-19 | 铁道部大连机车车辆工厂 | Overspeed protecting apparatus for diesel engine |
| US5513723A (en) * | 1994-07-01 | 1996-05-07 | Harnischfeger Corporation | Double-masted crane with improved brake arrangement |
| CN2876432Y (en) * | 2006-03-13 | 2007-03-07 | 程晋文 | Anti large sliding device of miner's truck |
| WO2008029418A2 (en) * | 2006-09-05 | 2008-03-13 | Ashok Kumar Tiwari | Power brake using wheel motion for generating an auxiliary brake force |
| CN202729746U (en) * | 2012-07-31 | 2013-02-13 | 苏州富士德物流设备有限公司 | Overspeed protective device of stacker cargo-carrying platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106966301A (en) | 2017-07-21 |
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| GR01 | Patent grant |