CN109114138A - Tunneling machine cutting pars contractilis band brake apparatus - Google Patents
Tunneling machine cutting pars contractilis band brake apparatus Download PDFInfo
- Publication number
- CN109114138A CN109114138A CN201811330957.7A CN201811330957A CN109114138A CN 109114138 A CN109114138 A CN 109114138A CN 201811330957 A CN201811330957 A CN 201811330957A CN 109114138 A CN109114138 A CN 109114138A
- Authority
- CN
- China
- Prior art keywords
- band
- valve
- type brake
- oil cylinder
- pars contractilis
- 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.)
- Granted
Links
- 230000005641 tunneling Effects 0.000 title claims abstract description 33
- 239000003921 oil Substances 0.000 claims abstract description 71
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/008—Brakes acting on a linearly moving member
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Braking Arrangements (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of tunneling machine cutting pars contractilis band brake apparatus of the present invention, belongs to development machine field.A kind of tunneling machine cutting pars contractilis band brake apparatus, including band-type brake valve group and at least one band-type brake oil cylinder；The band-type brake valve group is connected between hydraulic oil source and the band-type brake oil cylinder, and the band-type brake valve group is acted by the pars contractilis that the pressure oil of the hydraulic oil source controls the band-type brake oil cylinder；The piston rod of the band-type brake oil cylinder is connect with sliding rack；In tunneling machine cutting pars contractilis stopping movement, the band-type brake oil cylinder stretches out the piston rod under the control of the band-type brake valve group and the sliding rack is pushed to be adjacent to fixed frame.The present invention eliminates the gap of sliding rack and fixed frame friction pair using band-type brake oil cylinder, and power oil sources is taken from telescopic oil cylinder working connection, has both been able to achieve passive braking brake (being not required to subsidiary extra power, such as motor), can also brake；Structure is simple, sensitive reliable.
Description
Technical field
The present invention relates to development machine field, in particular to a kind of tunneling machine cutting pars contractilis band brake apparatus.
Background technique
Boom-type roadheader be it is a kind of can be realized cutting, load transport, from walking and spray for dust suppression Unit erriger.It is outstanding
The cutting mechanism of road headers mainly has flexible and two types of not stretching, and telescopic is structurally characterized in that sliding rack in fixation
Sliding in frame, there are certain gaps between sliding rack and fixed frame.In practical work process, due to the presence in gap, cut
The portion of cutting can have the case where vibration and unbalance stress.
Summary of the invention
It is an object of the invention in view of the above-mentioned problems, provide a kind of tunneling machine cutting pars contractilis band brake apparatus, to prevent
There is the case where vibration and unbalance stress in cutting units.
The object of the present invention is achieved like this:
A kind of tunneling machine cutting pars contractilis band brake apparatus, including band-type brake valve group and at least one band-type brake oil cylinder；
The band-type brake valve group is connected between hydraulic oil source and the band-type brake oil cylinder, and the band-type brake valve group passes through described hydraulic
The pars contractilis that the pressure oil of oil sources controls the band-type brake oil cylinder is acted；
The piston rod of the band-type brake oil cylinder is connect with sliding rack；In tunneling machine cutting pars contractilis stopping movement, institute
It states band-type brake oil cylinder and stretches out the piston rod under the control of the band-type brake valve group and the sliding rack is pushed to be adjacent to fixed frame.
Preferably, the band-type brake valve group includes normally open logic valve, normally closed logical valve, the first check valve, second one-way valve, overflows
Flow valve and accumulator；
The control port of the normally open logic valve and the control port of the normally closed logical valve connect the hydraulic oil source；Institute
One hydraulic fluid port of a hydraulic fluid port and the normally closed logical valve for stating normally open logic valve connects the band-type brake oil cylinder；The normally open logic valve
Another hydraulic fluid port connects the accumulator；The oil return opening of the normally open logic valve is followed by the normally closed logical valve through the first check valve respectively
Another hydraulic fluid port and be followed by the band-type brake oil cylinder through overflow valve；
The oil return opening of the normally closed logical valve takes back its another hydraulic fluid port；
The accumulator is also followed by the hydraulic oil source through second one-way valve.
Preferably, the normally open logic valve, the normally closed logical valve, first check valve, the second one-way valve, institute
It states overflow valve and the accumulator and the band-type brake valve group is integrated by valve block.
Preferably, the band-type brake valve group device is in the gap on the cutting motor top of the development machine.
Preferably, the hydraulic oil source is the telescopic oil cylinder for driving the tunneling machine cutting pars contractilis to be acted.
Preferably, it is connected between the band-type brake valve group and the telescopic oil cylinder by three-way shuttle valve, the three-way shuttle valve
Two input ports are connect with the stretching working connection of the telescopic oil cylinder and retraction working connection respectively, the delivery outlet of the three-way shuttle valve
Then it is connect with the input terminal of the band-type brake valve group.
The invention has the benefit that eliminating the gap of sliding rack and fixed frame friction pair, power using band-type brake oil cylinder
Oil sources is taken from telescopic oil cylinder working connection, has both been able to achieve passive braking brake (being not required to subsidiary extra power, such as motor), can also
Braking；Structure is simple, sensitive reliable.
Detailed description of the invention
Fig. 1 shows the structure chart of one embodiment of tunneling machine cutting pars contractilis band brake apparatus of the present invention；
Fig. 2 shows the Section A-A figures of Fig. 1；
Fig. 3 shows the schematic enlarged-scale view of region B in Fig. 2；
Fig. 4 shows the structure chart of one embodiment of band-type brake valve group in tunneling machine cutting pars contractilis band brake apparatus of the present invention.
Description of symbols:
1: band-type brake valve group
2: telescopic oil cylinder
3: band-type brake oil cylinder
4: cutting motor
5: guide plate
6: sliding rack
7: accumulator
8: three-way shuttle valve
9: normally open logic valve
10: normally closed logical valve
11: overflow valve
12: the first check valves
13: valve block
14: second one-way valve
Specific embodiment
Various embodiments of the present invention will be described with reference to the drawings.In specification and attached drawing, have similar structures or
The element of function will be indicated with identical component symbol.It is appreciated that attached drawing is only to provide reference and description to use, not it is used to
The present invention is limited.The size shown in attached drawing is only to be convenient for clearly describing, and does not limit proportionate relationship or right
The present invention carries out exhaustive explanation, nor limiting the scope of the present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
The invention proposes a kind of tunneling machine cutting pars contractilis band brake apparatus.
In one embodiment, as shown in Figure 1-3, the tunneling machine cutting pars contractilis band brake apparatus includes 1 He of band-type brake valve group
At least one band-type brake oil cylinder 3.Depending on the particular number of band-type brake oil cylinder 3 is by actual conditions, usually balances cost and band-type brake effect is come
Consider, to realize that the stabilization of band-type brake effect is limited.
Band-type brake valve group 1 is connected between hydraulic oil source and band-type brake oil cylinder 3, the pressure oil that band-type brake valve group 1 passes through hydraulic oil source
The pars contractilis of control band-type brake oil cylinder 3 is acted.
In the present embodiment, hydraulic oil source uses original component of development machine, stretches particularly for driving tunneling machine cutting
The telescopic oil cylinder 2 that contracting portion is acted.
It in the present embodiment, further include a three-way shuttle valve 8, the three-way shuttle valve 8 is for realizing band-type brake valve group 1 and flexible oil
Connection between cylinder 2.The connection structure of the three-way shuttle valve 8 specifically: two input ports of three-way shuttle valve 8 respectively with telescopic oil cylinder
2 stretch out working connection and retract working connection connection, and the delivery outlet of three-way shuttle valve 8 is then connected to the input terminal of band-type brake valve group 1.
Effect in this present embodiment of three-way shuttle valve 8 is " selection ", and no matter telescopic oil cylinder 2, which stretches out working connection, provides pressure also
It is that telescopic oil cylinder 2 retracts working connection offer pressure, can guarantees that pressure oil enters in band-type brake valve group 1.
To reduce the change to existing development machine structure as far as possible, 1 preferred embodiment of band-type brake valve group in the present embodiment is in institute
It states in the gap on 4 top of cutting motor of development machine (see Fig. 1).Here cutting motor 4 be drive development machine cutterhead into
The powered drive element of row cutting work.
The piston rod of band-type brake oil cylinder 3 is connect with sliding rack 6.In the movement of tunneling machine cutting pars contractilis, band-type brake oil cylinder 3 is not produced
Raw thrust, and in tunneling machine cutting pars contractilis stopping movement, band-type brake oil cylinder 3 stretches out piston rod under the control of band-type brake valve group 1
It pushes sliding rack 6 to be adjacent to fixed frame, the gap of sliding rack 6 and fixed frame friction pair is eliminated with this.Sliding rack 6 described here is
When tunneling machine cutting pars contractilis internal slide, the component of the tunneling machine cutting pars contractilis expanding-contracting action is realized.
In another embodiment, it based on the basis of previous embodiment, stretches as shown in figure 4, disclosing tunneling machine cutting
A kind of specific structure of band-type brake valve group 1 in portion's band brake apparatus.
Band-type brake valve group 1 specifically include normally open logic valve 9, normally closed logical valve 10, the first check valve 12, second one-way valve 14,
Overflow valve 11 and several components of accumulator 7, these components can specifically be integrated into the band-type brake valve group 1 by valve block 13.
The connection structure of each component is as follows in the band-type brake valve group 1:
The control port of normally open logic valve 9 and the control port of normally closed logical valve 10 connect hydraulic oil source.Normally open logic valve 9
A hydraulic fluid port and a hydraulic fluid port of normally closed logical valve 10 connect band-type brake oil cylinder 3, another hydraulic fluid port of normally open logic valve 9 connects accumulator 7.Often
The oil return opening for opening logical valve 9 is followed by another hydraulic fluid port of normally closed logical valve 10 through the first check valve 12 respectively and is followed by through overflow valve 11
Band-type brake oil cylinder 3.The oil return opening of normally closed logical valve 10 takes back its another hydraulic fluid port.Accumulator 7 is also followed by through second one-way valve 14 hydraulic
Oil sources.
In the present embodiment, accumulator 7 carries out filling liquid during tunneling machine cutting pars contractilis carries out expanding-contracting action, works as pick
Then to 3 input pressure of band-type brake oil cylinder when being acted into machine cutting pars contractilis stopping.
The initial position of normally open logic valve 9 is normally open, and when tunneling machine cutting pars contractilis carries out expanding-contracting action, which is closed
It closes, pressure oil is after three-way shuttle valve 8 and second one-way valve 14 to 7 filling liquid of accumulator；When tunneling machine cutting pars contractilis stopping acts
When, which resets, and accumulator 7 is after normally opened logical valve 9 to 3 filling liquid of band-type brake oil cylinder.
The initial position of normally closed logical valve 10 is normally off, it is ensured that when tunneling machine cutting pars contractilis stopping acts, pressure
Power oil can also be to 7 filling liquid of accumulator；When tunneling machine cutting pars contractilis carries out expanding-contracting action, the valve events, oil circuit is opened, band-type brake
3 rodless cavity off-load of oil cylinder makes pressure oil pass through the valve off-load.
Overflow valve 11 is for guaranteeing that whole system (system includes embracing casket valve group, band-type brake oil cylinder 3 and telescopic oil cylinder 2) is no more than
Specified value plays protection system safety.
Two check valves have been used in the present embodiment, flow to pumping source for preventing accumulator 7 from exporting oil liquid, or return for system
Oil provides certain back pressure.
Two check valves have been used in the present embodiment, flow to pumping source for preventing accumulator from exporting oil liquid, or be that system is returned
Oil provides certain back pressure.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (6)
1. a kind of tunneling machine cutting pars contractilis band brake apparatus, which is characterized in that including band-type brake valve group and at least one band-type brake oil cylinder；
The band-type brake valve group is connected between hydraulic oil source and the band-type brake oil cylinder, and the band-type brake valve group passes through the hydraulic oil source
Pressure oil control the pars contractilis of the band-type brake oil cylinder and acted；
The piston rod of the band-type brake oil cylinder is connect with sliding rack；In tunneling machine cutting pars contractilis stopping movement, described armful
Lock oil cylinder stretches out the piston rod under the control of the band-type brake valve group and the sliding rack is pushed to be adjacent to fixed frame.
2. tunneling machine cutting pars contractilis band brake apparatus according to claim 1, which is characterized in that the band-type brake valve group includes
Normally open logic valve, normally closed logical valve, the first check valve, second one-way valve, overflow valve and accumulator；
The control port of the normally open logic valve and the control port of the normally closed logical valve connect the hydraulic oil source；It is described normal
One hydraulic fluid port of a hydraulic fluid port and the normally closed logical valve for opening logical valve connects the band-type brake oil cylinder；The normally open logic valve it is another
Hydraulic fluid port connects the accumulator；The oil return opening of the normally open logic valve is followed by the another of the normally closed logical valve through the first check valve respectively
One hydraulic fluid port and the band-type brake oil cylinder is followed by through overflow valve；
The oil return opening of the normally closed logical valve takes back its another hydraulic fluid port；
The accumulator is also followed by the hydraulic oil source through second one-way valve.
3. tunneling machine cutting pars contractilis band brake apparatus according to claim 2, which is characterized in that the normally open logic valve,
The normally closed logical valve, first check valve, the second one-way valve, the overflow valve and the accumulator pass through valve block collection
As the band-type brake valve group.
4. tunneling machine cutting pars contractilis band brake apparatus according to claim 1, which is characterized in that the band-type brake valve group device
In the gap on the cutting motor top of the development machine.
5. tunneling machine cutting pars contractilis band brake apparatus described in any one of -4 according to claim 1, which is characterized in that the liquid
Pressure oil source is the telescopic oil cylinder for driving the tunneling machine cutting pars contractilis to be acted.
6. tunneling machine cutting pars contractilis band brake apparatus according to claim 5, which is characterized in that the band-type brake valve group and
Between the telescopic oil cylinder by three-way shuttle valve connect, two input ports of the three-way shuttle valve respectively with the telescopic oil cylinder
It stretches out working connection and retracts working connection connection, the delivery outlet of the three-way shuttle valve is then connect with the input terminal of the band-type brake valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330957.7A CN109114138B (en) | 2018-11-09 | 2018-11-09 | Band-type brake device for cutting telescopic part of heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330957.7A CN109114138B (en) | 2018-11-09 | 2018-11-09 | Band-type brake device for cutting telescopic part of heading machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114138A true CN109114138A (en) | 2019-01-01 |
| CN109114138B CN109114138B (en) | 2024-09-03 |
Family
ID=64853836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330957.7A Active CN109114138B (en) | 2018-11-09 | 2018-11-09 | Band-type brake device for cutting telescopic part of heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114138B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374587A (en) * | 2019-08-19 | 2019-10-25 | 天地科技股份有限公司上海分公司 | The telescopic cutting mechanism of development machine |
| CN110410074A (en) * | 2019-08-19 | 2019-11-05 | 天地科技股份有限公司上海分公司 | Cohesion device and development machine telescoping mechanism |
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| CN104736875A (en) * | 2012-12-21 | 2015-06-24 | Chr.迈尔有限公司及两合公司 | Linear brake operated by means of external energy |
| CN202991026U (en) * | 2013-01-08 | 2013-06-12 | 湘煤立达矿山装备股份有限公司 | Telescopic cutting arm for heading machine |
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| CN110374587A (en) * | 2019-08-19 | 2019-10-25 | 天地科技股份有限公司上海分公司 | The telescopic cutting mechanism of development machine |
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| CN110410074B (en) * | 2019-08-19 | 2024-05-03 | 天地科技股份有限公司上海分公司 | Enclasping device and heading machine telescopic mechanism |
| CN110374587B (en) * | 2019-08-19 | 2024-09-03 | 天地科技股份有限公司上海分公司 | Telescopic cutting mechanism of heading machine |
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