CN104495675A - Crane and brake thereof - Google Patents
Crane and brake thereof Download PDFInfo
- Publication number
- CN104495675A CN104495675A CN201410790869.0A CN201410790869A CN104495675A CN 104495675 A CN104495675 A CN 104495675A CN 201410790869 A CN201410790869 A CN 201410790869A CN 104495675 A CN104495675 A CN 104495675A
- Authority
- CN
- China
- Prior art keywords
- drg
- pressure sensor
- pin type
- type pressure
- brake
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
Abstract
The invention discloses a crane and a brake thereof. The brake comprises pushers, lever systems, friction plate supports, friction plates, brake springs, bases and hinge pin type pressure sensors. The hinge pin type pressure sensors are connected with the friction plate supports and the lever systems, and brake force or brake torque of the brake is monitored by the hinge pin type pressure sensors. The crane and the brake have the advantages that the safety and the reliability of the crane can be improved.
Description
Technical field
The present invention relates to hoisting crane, particularly relate to a kind of drg for lifting mechanism, operating unit or swing type mechanism of hoisting crane.
Background technology
The hoisting crane of prior art, drg is not equipped with pressure sensor usually.
For plate disc brake, the drg of prior art hoisting crane, left and right two is overlapped friction lining and is fixed on friction disc support, and friction disc support is connected with leverage by bearing pin.During drg action, leverage promote friction disc support and move to brake disc, and then band movable friction plate is pressed on brake disc both sides, and keep certain thrust to produce enough friction brake force or lock torque, to guarantee the safety of its institution where he works or equipment.
Because the drg of prior art is not equipped with pressure sensor, cannot know for sure brake time the braking force acted on brake disc or brake wheel be how many, whether can only fit closely by estimating brake bush and brake disc or brake wheel, or the pressure of the holddown spring of range estimation drg, whether at setting range, judges the braking effect of drg with this.Because cannot accurate measurements braking force in real time in prior art, as run into drg safeguard not in place, braking force decline produce hidden danger time, cannot Timeliness coverage get rid of hidden danger.
Therefore, need a kind of can the drg for hoisting crane of Real-Time Monitoring braking force, to solve above technical matters, get rid of hidden danger in time, ensure safety.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of drg, can not the technical matters of Real-Time Monitoring brake braking force to solve drg in prior art.
Another object of the present invention is to provide a kind of hoisting crane with drg of the present invention.
The present invention is achieved through the following technical solutions:
A kind of drg, for hoisting crane, described drg comprises pusher, leverage, friction disc support, friction lining, retarding spring and base, described drg also comprises the pin type pressure sensor connecting described friction disc support and described leverage, by braking force or the lock torque of drg described in described pin type pressure sensor monitoring.
Hoisting crane of the present invention, has drg of the present invention.
Beneficial effect of the present invention is, drg of the present invention and other drg basic function, structure are roughly similar, just the bearing pin be wherein connected between friction disc support with leverage is replaced to pin type pressure sensor, act on the braking force on brake disc or brake wheel in order to Real-Time Monitoring drg.In addition, because the friction lining of nearly all drg is all fixed on friction disc support by bolt or alternate manner detouchable, like this can more renewal of facing renewal easily.
And, pin type pressure sensor can substitute the function of bearing pin in existing drg completely, for plate disc brake, when can ensure drg action, leverage promote friction disc support and move to brake disc, and then band movable friction plate is pressed on brake disc both sides, and keep certain thrust to produce enough friction brake force or lock torque, to guarantee the safety of its institution where he works or equipment.
Accompanying drawing explanation
Fig. 1 is the front view of the drg of the embodiment of the present invention.
Fig. 2 is the lateral plan of the drg of the embodiment of the present invention.
Fig. 3 is that the master of the drg of the embodiment of the present invention looks sketch.
Fig. 4 is the lateral plan of Fig. 3.
Fig. 5 is the force diagram in the drg of the embodiment of the present invention after the amplification of pin type pressure sensor.
Detailed description of the invention
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the present invention.
The drg of the embodiment of the present invention can be used in the hoisting crane of the embodiment of the present invention, goes for the multiple mechanisms on hoisting crane, such as lifting mechanism, operating unit or swing type mechanism.
Below the drg of the embodiment of the present invention is specifically introduced.
As depicted in figs. 1 and 2, the drg of the embodiment of the present invention, except the pusher 1 comprised in conventional brake, leverage, friction disc support 3, friction lining 4, retarding spring (not shown) and base 6, also comprise pin type pressure sensor 7.
Wherein, leverage comprise interconnective multiple lever, and the lever 2 shown in Fig. 1 is near friction disc support 3 and lever direct coupled with it.In addition, the effective object of the drg of the embodiment of the present invention is brake disc 8.
The drg of the embodiment of the present invention, it is the bearing pin will be connected between friction disc support 3 with lever 2, replace to pin type pressure sensor 7, both the effect carrying out between friction disc support 3 with lever 2 being connected had been played, also can in order to monitor the braking force of the drg of the embodiment of the present invention, and lock torque can be calculated by control system according to braking force, therefore, be equivalent to the lock torque of brake monitoring device.
In addition, the drg of the embodiment of the present invention, the position lever of friction disc support 3 and lever 2 being worn bearing pin is also needed to be changed, the one side of change is the specification allowing the pin-and-hole on friction disc support 3 and leverage 2 adapt to pin type pressure sensor 7, on the other hand, that bolt hole is set on lever 2, in order to pass through fixed dam 5, and pin type pressure sensor 7 is relatively fixing, facilitate pin type pressure sensor 7 after connection friction disc support 3 with leverage 2, truly can measure the positive pressure between friction disc support 3 and lever 2.
After above-mentioned change, by pin type pressure sensor 7 through the pin-and-hole connecting friction disc support 3 and leverage 2, and utilize baffle plate 5 to be fixed on lever 2, prevent pin type pressure sensor 7 and lever 2 from relatively rotating.Like this, when friction lining 4 is pressed on brake disc 8 under the drive of friction disc support 3, the thrust that friction lining 4 acts on brake disc 8 is delivered on lever 2 by friction disc support 3, pin type pressure sensor 7, and the electric signal that pin type pressure sensor 7 produces feeds back in the control system of equipment (hoisting crane of the such as embodiment of the present invention), also just can act on positive pressure on brake disc 8 by Real-Time Monitoring drg, braking force that this pressure produces or lock torque can be calculated whether within safe range.Facilitate control system Timeliness coverage problem, guarantee the hoisting crane of the embodiment of the present invention and the safe operation of drg thereof.
Pin type pressure sensor 7 can adopt common pin type LOAD CELLS, as shown in Figure 5, pin type pressure sensor 7 comprises bearing pin 70, strain regions 71, resistance strain gage 72 and transverse groove 73, strain regions 70 is for being arranged on bearing pin 70 annular groove circumferentially, and the degree of depth of groove is more shallow, at annular groove circumferentially, offer 1 radial blind holes, arrange one group of resistance strain gage 72 in blind hole after, blind hole sealed, the lead-in wire of each resistance strain gage 72 is drawn from the axle center of bearing pin 70.Transverse groove 73 is for positioning baffle 5, and baffle plate 5 and lever 2 are bolted to connection.After bearing pin 70 stress deformation, the size of the resistance of resistance strain gage 72 can change, thus measures the power suffered by bearing pin 70.
After brake guaranties, under pusher 1 promotes, after overcoming the tension force of retarding spring, by lever 2, friction disc support 3, friction lining 4 is separated with brake disc 8.During brake, drg dead electricity, pusher 1 loses propelling thrust, under the effect of retarding spring tension force, makes friction lining 4 be pressed on brake disc 8 by lever 2, friction disc support 3; Brake disc 8 (or brake wheel) is connected on mechanism driving chain, can be delivered on messenger chain by braking force (or lock torque);
It should be noted that, the present invention is only illustrated for plate disc brake and brake disc, for wheel brake and brake wheel, can by like manner arranging pressure sensor, and equally can Real-Time Monitoring braking force and lock torque; In like manner the present invention replaces to pin type pressure sensor with the friction disc support of the positive pressure of brake disc with the bearing pin be connected between lever 2 by directly embodying drg, also except lever 2, any lever can will arrange pressure sensor, as long as truly can reflect that drg acts on the positive pressure of brake disc within leverage (or claim transmission leverage).
Technical scheme of the present invention is disclosed as above by preferred embodiment.The change that those skilled in the art do when should recognize the scope and spirit of the present invention disclosed in the claim do not departed from appended by the present invention and retouching, within the protection domain all belonging to claim of the present invention.
Claims (9)
1. a drg, for hoisting crane, described drg comprises pusher, leverage, friction disc support, friction lining, retarding spring and base, it is characterized in that, described drg also comprises the pin type pressure sensor connecting described friction disc support and described leverage, by braking force or the lock torque of drg described in described pin type pressure sensor monitoring.
2. drg as claimed in claim 1, it is characterized in that, described pin type pressure sensor is pin type LOAD CELLS.
3. drg as claimed in claim 2, it is characterized in that, described pin type pressure sensor is arranged between the lever near described friction disc support in described friction disc support and described leverage, and described pin type pressure sensor is fixed on described lever.
4. drg as claimed in claim 3, is characterized in that, described pin type pressure sensor is fixed on described lever by baffle plate after passing the pin-and-hole connecting described friction disc support and described lever by described pin type pressure sensor.
5. drg as claimed in claim 4, it is characterized in that, described pin type pressure sensor comprises pin body, strain regions and resistance strain gage, described strain regions is be arranged on described bearing pin annular groove circumferentially, described annular groove circumferentially offer a radial blind holes, in described blind hole, arrange resistance strain gage described in a group.
6. drg as claimed in claim 5, it is characterized in that, described pin type pressure sensor is also provided with the transverse groove for locating described baffle plate.
7. drg as claimed in claim 1, it is characterized in that, described drg is wheel brake or plate disc brake.
8. a hoisting crane, is characterized in that, described crane tool is had the right the arbitrary described drg of requirement 1-7.
9. hoisting crane as claimed in claim 8, is characterized in that, the drg of the lifting mechanism of described hoisting crane, operating unit and swing type mechanism is the arbitrary described drg of described claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790869.0A CN104495675A (en) | 2014-12-17 | 2014-12-17 | Crane and brake thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790869.0A CN104495675A (en) | 2014-12-17 | 2014-12-17 | Crane and brake thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104495675A true CN104495675A (en) | 2015-04-08 |
Family
ID=52937157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410790869.0A Pending CN104495675A (en) | 2014-12-17 | 2014-12-17 | Crane and brake thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408589A (en) * | 2018-02-07 | 2018-08-17 | 中铁六局集团有限公司 | Loop wheel machine transports anti roll device |
| CN113495519A (en) * | 2021-07-06 | 2021-10-12 | 长江三峡通航管理局 | Device, system and method for detecting thrust of mechanical hoist |
-
2014
- 2014-12-17 CN CN201410790869.0A patent/CN104495675A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408589A (en) * | 2018-02-07 | 2018-08-17 | 中铁六局集团有限公司 | Loop wheel machine transports anti roll device |
| CN113495519A (en) * | 2021-07-06 | 2021-10-12 | 长江三峡通航管理局 | Device, system and method for detecting thrust of mechanical hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
|
| WD01 | Invention patent application deemed withdrawn after publication |