CN207002047U - A kind of mechanical overspeed protective device - Google Patents
A kind of mechanical overspeed protective device Download PDFInfo
- Publication number
- CN207002047U CN207002047U CN201720504541.7U CN201720504541U CN207002047U CN 207002047 U CN207002047 U CN 207002047U CN 201720504541 U CN201720504541 U CN 201720504541U CN 207002047 U CN207002047 U CN 207002047U
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- CN
- China
- Prior art keywords
- wheel shaft
- spring
- block
- shaft
- 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.)
- Withdrawn - After Issue
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Abstract
A kind of mechanical overspeed protective device, including housing, wheel shaft and hydraulic brake valve, wheel shaft are arranged in housing, are set in an end section of wheel shaft and are movably set with left centrifugal-block and right centrifugal-block by bearing pin, and the other end fixed cover of wheel shaft is provided with gear；Tripping spring is radially arranged along wheel shaft section between left and right centrifugal-block, the bottom of right centrifugal-block is provided with light pin；Tripping spring one end is provided with the adjusting nut for being used 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, and the correspondence position on housing with spring shaft is installed with hydraulic brake valve by connecting plate, and brake valve includes the short swing rod for controlling hydraulic brake valve；To ensure speed limit effect, when spring shaft engaging with the light pin departs from, spring natural length can ensure that spring shaft withstands short swing rod completely, then triggers hydraulic brake valve and opens, reaches startup brake fluid system.
Description
Technical field
The manufacturing technology field of mechanical brake device is the utility model is related to, is applied particularly to crane walking rolling
The braking equipment of the overspeed protection of wheel and mine vehicle, especially a kind of mechanical overspeed protective device.
Background technology
In the prior art, in terms of the braking of mechanical tracks crane and mine vehicle, entered using brake fluid system
The passive braking of row, however, for crane or the speed-limiting protective device of mine car under emergency condition, rarely has related device and skill
Art research.Particularly under the underground working of mine vehicle generally existing, for the overspeed protective device of general electronic type,
Because its need it is powered play a role, do not meet underground working environment without electricity, can not produce naked light strict precondition requirement.
Based on the above-mentioned demand using under operating mode, the utility model is intended to study a kind of active overspeed protection of Purely mechanical
Device, using new centrifugal force excitation principle, by mechanical linkage structure, when hypervelocity, it can actively start Hydraulic braking system
System, reach the technical goal of overspeed protection, and the controllability of the overspeed protection system realized based on adjustable springs structure,
Greatly reduce the failure probability of the mechanical overspeed protective device, there is the beneficial effect for being easy to safeguard, on a large scale should be worth
With popularization.
Utility model content
The utility model is to realize the technical goal illustrated in above-mentioned background technology, studies a kind of mechanical overspeed protection
Device, the wheel speed of crane or mine car is carried out to monitoring and the trigger mechanism of Purely mechanical, powered or electronics need not introduced by realizing
On the premise of control element, be completely secured mining equipment use without electricity, without fire strict operating mode under, realize reliable and stable
Overspeed protection target, when monitor hypervelocity when, can by a kind of mechanical overspeed protective device of the utility model, trigger start
Brake fluid system, realize the timely braking of crane or mine car.
Technical scheme is used by the utility model：A kind of mechanical overspeed protective device, include housing, wheel shaft with
And hydraulic brake valve, the wheel shaft are arranged in the housing, it is characterised in that：Set in one end section of the wheel shaft and pass through pin
Axle is movably set with left centrifugal-block and right centrifugal-block, and the other end fixed cover of the wheel shaft is provided with gear；
Tripping spring has been radially arranged along the wheel shaft section between the left and right centrifugal-block, the right centrifugal-block
Bottom is provided with light pin；
Described tripping spring one end is provided with the adjusting nut for being used 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, and the correspondence position on the housing with the spring shaft passes through
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 ensure speed limit effect, when spring shaft engaging with the light pin departs from, the spring natural length can
Ensure that spring shaft withstands short swing rod completely, then trigger hydraulic brake valve and open, reach the target for starting brake fluid system.
Further, the wheel shaft is connected 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 for 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, so as to by the spacing knot of spring shaft engaging with light pin
Structure fails, and in the presence of tripping spring, spring shaft continues to extend downwardly, and the short swing rod on brake valve is withstood, so as to trigger liquid
Press brake valve to open, reach the technical purpose of mechanical detection wheel rotating speed.
Further, it is the linkage effect of guarantee gear and wheel shaft, the side corresponding with the gear on the wheel shaft
Prominent flat key is additionally provided with wall, the gear is realized and the wheel shaft unitary rotation by the flat key.Play enough
Rotate transmission.
Further, the end that the wheel shaft is provided with the left and right centrifugal-block is cylinder shape groove structure, described
Left and right centrifugal-block is contained 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 when under centrifugal action, left and right centrifugal-block because centrifugal force or so separate when, be unlikely to
Open-width is spent greatly, brings potential safety hazard.
A kind of mechanical overspeed protective device provided by the utility model has the beneficial effect that：
The utility model is improved research for the brakes of existing crane and mining transportation vehicle, utilizes machine
The principle of tool formula centrifugal force, research and design is a kind of using centrifugal force caused by wheel shaft rotation, speed-limiting protection is realized, when wheel rotating speed
Reach a timing, you can the keying of hydraulic vehicle brake system is realized by mechanical structure, has thoroughly evaded the tradition of electric-controlled type
The brake structure design method of active brake system, for underground special operation condition in use, with positive improvement meaning and bright
Aobvious breakthrough, it is worth on a large scale in underground popularization and application, meanwhile, the present apparatus can also be installed additional by being normally applied occasion：Mechanical limit
Fast protection device, realize the speed-limitation structure of Purely mechanical, without by sensor or electrical type component underground speed acquisition with
And automatically controlled triggering brakes, level of security are higher.
Brief description of the drawings
Accompanying drawing 1 is a kind of side, sectional structure diagram of mechanical overspeed protective device described in the utility model；
Accompanying drawing 2 is a kind of Facad structure simplified schematic diagram of mechanical overspeed protective device described in the utility model.
Description of symbols：
1st, wheel shaft, 2, adjusting nut, 3, tripping spring, 4, spring shaft, 13, housing, 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.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, a kind of mechanical overspeed protective device, includes housing 13, wheel shaft 1 and hydraulic brake valve 6, wheel
Axle 1 is arranged in housing 13；
Left centrifugal-block 15 and right centrifugal-block are movably set with by bearing pin as shown in Fig. 2 being set in an end section of wheel shaft 1
14, referring to shown in accompanying drawing 1, the other end fixed cover of wheel shaft 1 is provided with gear 10；
As shown in Figure 1-2, tripping spring 3, the right side have been radially arranged along the section of wheel shaft 1 between left and right centrifugal-block (15,14)
The bottom of centrifugal-block 14 is provided with light pin 7；
The one end of tripping spring 3 is provided with the adjusting nut 2 for being used for adjusting the position of tripping spring 3, 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 settings, and the correspondence position on housing 13 with spring shaft 4 is consolidated by connecting plate 16
Provided with hydraulic brake valve 6, brake valve 6 includes the short swing rod 8 for controlling hydraulic brake valve 6；
To ensure speed limit effect, when the engaging with the light pin 7 of spring shaft 4 departs from, the natural length of spring 3 can ensure that bullet
Spring axle 4 withstands short swing rod 8 completely, then triggers hydraulic brake valve 6 and opens, reaches the target for starting brake fluid system.
Wheel shaft 1 is rotatablely connected by being sheathed on the bearing 12 of the medium position of wheel shaft 1 with housing 13.
The two sides of bearing 12 are equipped with elastic washer 9.
As shown in Fig. 2 left and right centrifugal-block (15,14) for 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 the displacement of light pin 7, so as to by spring shaft 4
Failed with the engaging position limiting structure of light pin 7, in the presence of tripping spring 3, spring shaft 4 continues to extend downwardly, and withstands brake valve 6
On short swing rod 8, opened so as to trigger hydraulic brake valve 6, reach the technical purpose of the rotating speed of mechanical detection wheel shaft 1.
To ensure the linkage effect of gear 10 and wheel shaft 1, also set up on wheel shaft 1 in the side wall corresponding with the gear 10
There is prominent flat key (being to mark in figure), gear 10 is realized by the flat key and the unitary rotation of wheel shaft 1, plays enough rotations
Transmission.
The end that wheel shaft 1 is provided with the left and right centrifugal-block (15,14) is cylinder shape groove structure, the left and right centrifugation
Block (15,14) is contained in the cylinder shape groove, and the radius of the semicircular arc is less than the cylinder shape groove of the end of wheel shaft 1
Internal diameter.So, it can be ensured that when under centrifugal action, left and right centrifugal-block (15,14) because centrifugal force or so separate when, be unlikely to
Opening amplitude is excessive, brings potential safety hazard.
Had the beneficial effect that caused by the present apparatus：
The utility model is improved research for the brakes of existing crane and mining transportation vehicle, utilizes machine
The principle of tool formula centrifugal force, research and design is a kind of using centrifugal force caused by wheel shaft rotation, speed-limiting protection is realized, when wheel rotating speed
Reach a timing, you can the keying of hydraulic vehicle brake system is realized by mechanical structure, has thoroughly evaded the tradition of electric-controlled type
The brake structure design method of active brake system, for underground special operation condition in use, with positive improvement meaning and bright
Aobvious breakthrough, it is worth on a large scale in underground popularization and application, meanwhile, the present apparatus can also be installed additional by being normally applied occasion：Mechanical limit
Fast protection device, realize the speed-limitation structure of Purely mechanical, without by sensor or electrical type component underground speed acquisition with
And automatically controlled triggering brakes, level of security are higher.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (6)
1. a kind of mechanical overspeed protective device, includes housing, wheel shaft and hydraulic brake valve, the wheel shaft is arranged in described
In housing, it is characterised in that：Set in one end section of the wheel shaft and left centrifugal-block and right centrifugal-block be movably set with by bearing pin,
The other end fixed cover of the wheel shaft is provided with gear；
Between the left and right centrifugal-block tripping spring, the lower end of the right centrifugal-block have been radially arranged along the wheel shaft section
Portion is provided with light pin；
Described tripping spring one end is provided with the adjusting nut for being used 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 is mutually clamped setting with the light pin, passes through on the housing with the correspondence position of the spring shaft and is connected
Plate is installed with the hydraulic brake valve, and the hydraulic brake valve includes the short swing rod for controlling the hydraulic brake valve.
A kind of 2. mechanical overspeed protective device according to claim 1, it is characterised in that：On the wheel shaft with the gear
Prominent flat key is additionally provided with corresponding side wall, the gear is realized and the wheel shaft unitary rotation by the flat key.
A kind of 3. 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 axle medium position is connected with the housing into rotation.
A kind of 4. mechanical overspeed protective device according to claim 3, it is characterised in that：The two sides of the bearing are all provided with
Flexible packing ring.
A kind of 5. mechanical overspeed protective device according to claim 1, it is characterised in that：The wheel shaft is provided with described
The end of left and right centrifugal-block is cylinder shape groove structure, and the left and right centrifugal-block is contained in the cylinder shape groove.
A kind of 6. 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 |
|---|---|---|---|
| CN201720504541.7U CN207002047U (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 |
|---|---|---|---|
| CN201720504541.7U CN207002047U (en) | 2017-05-09 | 2017-05-09 | A kind of mechanical overspeed protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207002047U true CN207002047U (en) | 2018-02-13 |
Family
ID=61443394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720504541.7U Withdrawn - After Issue CN207002047U (en) | 2017-05-09 | 2017-05-09 | A kind of mechanical overspeed protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207002047U (en) |
-
2017
- 2017-05-09 CN CN201720504541.7U patent/CN207002047U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180213 Effective date of abandoning: 20190507 |
|
| AV01 | Patent right actively abandoned |