CN205826426U - Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device - Google Patents
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device Download PDFInfo
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- CN205826426U CN205826426U CN201620734008.5U CN201620734008U CN205826426U CN 205826426 U CN205826426 U CN 205826426U CN 201620734008 U CN201620734008 U CN 201620734008U CN 205826426 U CN205826426 U CN 205826426U
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Abstract
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device, belongs to mine disaster Prevention Technique field.This utility model includes framework, impulsive force loading system, dead load loading system, load control system and high speed data signal acquiring system；Impulsive force loading system includes the 3rd hydraulic jack, flexible spacing collar, dropping hammer discharges device, sleeve and drop hammer；Flexible spacing collar is fixed on the framework above the release device that drops hammer, and the piston rod of the 3rd hydraulic jack is fixing with positioning sleeve after passing flexible spacing collar to be connected；Dead load loading system includes counter-force casing, is provided with seaming chuck, push-down head, left pressure head and right pressure head in reaction box body；Left pressure head and the first static load piston are connected, and right pressure head and the second static load piston are connected, and seaming chuck is connected with dynamic load piston, and dynamic load piston is arranged on the lower section dropped hammer；Load control system includes that hydraulic power unit, hydraulic power unit are connected with each hydraulic jack；Shock sensors is arranged on the top of dynamic load piston, and it is connected with computer.
Description
Technical field
This utility model belongs to mine disaster Prevention Technique field, relates to a kind of dynamic rock mechanics assay device, especially
Relate to a kind of study deep rock mass power mechanical characteristics and coal petrography Mechanics of Rockburst research under large scale, condition of high ground stress
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device.
Background technology
Rich coal resources in China, along with being continuously increased of the mining degree of depth, most of mine entrance deep mining, one
A little pit mining degree of depth are close to 1500m.Deep mining, rock mass is in " three-hypers one disturbance " (high-ground stress, High-geotemperature, high karst
Hydraulic pressure and the energetic disturbance such as explosion, impact) complicated mechanical environment in, have significant difference with the loading characteristic of superficial part rock.
Deep rock is under high-stress state, simultaneously by dynamic effects such as Blasting Excavation disturbance or impulse machine disturbances.Deep rock
The mechanics that body is showed mainly breeds development shape with engineering characteristics under high stress and excavation disturbance coupling
Become, there is the dynamic evolution feature of complexity.At present, research for deep rock mass dynamics problem both at home and abroad mainly utilizes
Hopkinson bar experimental provision conducts a research work, and the specimen size that this device uses is less, and this device is normal triaxial
Experimental provision, it is impossible to reflection deep big test specimen rock mass is excavation disturbance and the stress state of dynamic load impact additive process and destruction
Rule.Therefore, heavily stressed, large scale, true triaxial coupled static-dynamic loadingi assay device are developed dynamic for research deep rock mass impact
Mechanics problem is significant.
Utility model content
The problem existed for prior art, this utility model provides a kind of accumulation of energy drop hammer type coupled static-dynamic loadingi test dress
Putting, this apparatus structure is reasonable in design, and process of the test is simple to operate, it is possible to analyze deep rock mass destruction under coupled static-dynamic loadingi
Feature and coal petrography bump genesis mechanism.
To achieve these goals, this utility model adopts the following technical scheme that a kind of accumulation of energy drop hammer type sound combination adds
Carry assay device, including framework, impulsive force loading system, dead load loading system, load control system and high-speed data signal
Acquisition system:
Described impulsive force loading system includes the 3rd hydraulic jack, flexible spacing collar, drop hammer release device, pull bar, set
Cylinder, spring and dropping hammer；The described release device that drops hammer includes that center has the positioning sleeve in hole, location, is provided with in the bottom of positioning sleeve
Groove, is provided with gland in the bottom of groove, and the inner of described groove is connected with hole, location；Claw it is provided with in groove,
It is provided with back-moving spring in groove between claw and positioning sleeve, the middle part of claw is provided with locating groove, positioning body
Bottom is arranged in described locating groove, and the lateral surface of described positioning body bottom has inclined-plane；One end of described sleeve is closed, separately
Open at one end, is provided with through hole in the center of sleeve blind end, described in drop hammer and be arranged in sleeve；The upper end of pull bar is through set
After the through hole of cylinder, it is arranged in the hole, location of the release device that drops hammer, is provided with draw-in groove, the inner of described claw in the upper end of pull bar
It is arranged in the draw-in groove of pull bar, the lower end of pull bar and fixing connection of dropping hammer, in the sleeve above dropping hammer, is provided with spring；Described
Flexible spacing collar is fixed on the framework above the release device positioning sleeve that drops hammer, and the 3rd hydraulic jack is fixed on frame roof
Center, the piston rod of the 3rd hydraulic jack is fixing with the positioning sleeve of the release device that drops hammer after passing flexible spacing collar to be connected；
Described sleeve is fixed on the center of frame mid portion；
Described dead load loading system includes counter-force casing, is respectively arranged with seaming chuck, push-down head, a left side in reaction box body
Pressure head and right pressure head；First static load piston of described left pressure head and the first hydraulic jack is connected, described right pressure head and the second liquid
Second static load piston of compressing cylinder is connected, and the dynamic load piston of described seaming chuck and the 4th hydraulic jack is connected, described dynamic load
Piston is arranged on the lower section dropped hammer, and described push-down head is fixed on the bottom of counter-force casing, is oppositely arranged with seaming chuck；
Described load control system includes hydraulic power unit, and described hydraulic power unit is respectively by high-pressure oil pipe and the first hydraulic oil
Cylinder, the second hydraulic jack, the 3rd hydraulic jack and the 4th hydraulic jack are connected；
Described high speed data signal acquiring system includes shock sensors and computer, and described shock sensors is arranged
At the top of dynamic load piston, it is connected with computer.
Groove bottom the positioning sleeve of the described release device that drops hammer is provided with three, and three grooves are circumferentially uniformly distributed.
The upper end of described pull bar is taper, and it is connected with dropping hammer to be threadably secured, the piston rod of the 3rd hydraulic jack with
Drop hammer release device positioning sleeve be threadably secured connection.
Described framework includes base plate, column, crossbeam and top board beam, is followed successively by base plate, crossbeam and top board beam, institute from the bottom to top
State base plate, crossbeam is connected by column with top board beam.
The beneficial effects of the utility model:
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device reasonable in design of the present utility model, process of the test operation letter
Single, it is possible to analyze deep rock mass deformation-failure character under the conditions of coupled static-dynamic loadingi and coal petrography bump genesis mechanism.
Accompanying drawing explanation
Fig. 1 is the structural representation of accumulation of energy drop hammer type coupled static-dynamic loadingi assay device of the present utility model；
Fig. 2 is the structural representation of impulsive force loading system in Fig. 1；
Fig. 3 is the structural representation dropping hammer in Fig. 2 and discharging device；
Fig. 4 is the upward view after Fig. 3 removes gland；
Fig. 5 is the structural representation of dead load loading system in Fig. 1；
In figure: 1-the 3rd hydraulic jack, 2-piston rod, 3-drops hammer release device, and 4-spring, 5-sleeve, 6-pull bar, 7-falls
Hammer, 8-positioning body, 9-positioning sleeve, 10-back-moving spring, 11-claw, 12-gland, 13-positions hole, 14-groove, 15-locator card
Groove, 16-draw-in groove, 17-top board beam, 18-column, 19-crossbeam, 20-the 4th hydraulic jack, 21-nut, 22-end cap, the upper pressure of 23-
Head, 24-the first hydraulic jack, 25-test specimen, the left pressure head of 26-, 27-counter-force casing, 28-the second hydraulic jack, the right pressure head of 29-,
30-push-down head, 31-lower bolster, 32-computer, 33-high-pressure oil pipe, 34-hydraulic power unit, 35-base plate, 36-impulsive force senses
Device, 37-dynamic load piston, 38-the second static load piston, 39-the first static load piston, 40-stretches spacing collar.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 1～Fig. 5, a kind of accumulation of energy drop hammer type coupled static-dynamic loadingi assay device, load including framework, impulsive force
System, dead load loading system, load control system and high speed data signal acquiring system.
Described framework includes base plate 35, column 18, crossbeam 19 and top board beam 17, is followed successively by base plate 35, crossbeam from the bottom to top
19 and top board beam 17, described base plate 35, crossbeam 19 are connected by column 18 with top board beam 17.
Described impulsive force loading system includes the 3rd hydraulic jack 1, flexible spacing collar 40, drop hammer release device 3, pull bar
6, sleeve 5, spring 4 and drop hammer 7；The described release device 3 that drops hammer includes that center has the positioning sleeve 9 in hole 13, location, at positioning sleeve 9
Bottom be provided with groove 14, be provided with gland 12 in the bottom of groove 14, the inner of described groove 14 is connected with hole 13, location
Logical；In groove 14, it is provided with claw 11, in the groove 14 between claw 11 and positioning sleeve 9, is provided with back-moving spring 10,
The middle part of claw 11 is provided with locating groove 15, and the bottom of positioning body 8 is arranged in described locating groove 15, described positioning body 8
The lateral surface of bottom has inclined-plane；One end of described sleeve 5 is closed, and the other end opens wide, and arranges in the center of sleeve 5 blind end
Have through hole, described in drop hammer and 7 be arranged in sleeve 5；The upper end of described pull bar 6 is taper, the upper end of pull bar 6 leading to through sleeve 5
Kong Hou, is arranged in the hole, location 13 of the release device 3 that drops hammer, is provided with draw-in groove 16 in the upper end of pull bar 6, described claw 11 interior
End is arranged in the draw-in groove 16 of pull bar 6, and the lower end of pull bar 67 is threadably secured with dropping hammer and is connected, at the sleeve 5 above 7 that drops hammer
Inside it is provided with spring 4；Described flexible spacing collar 40 is fixed on the top board beam 17 above release device 3 positioning sleeve 9 that drops hammer, the
Three hydraulic jacks 1 are fixed on the center of top board beam 17, after the piston rod 2 of the 3rd hydraulic jack 1 passes flexible spacing collar 40
It is threadably secured with the positioning sleeve 9 of the release device 3 that drops hammer and is connected.Groove bottom the positioning sleeve 9 of the described release device 3 that drops hammer
14 are provided with three, and three grooves 14 are circumferentially uniformly distributed.Described sleeve 5 is fixed on the center of crossbeam 19.
Described dead load loading system includes that counter-force casing 27, described counter-force casing 27 are arranged on base plate 35, under press
Between 30 and base plate 35, it is provided with lower bolster 31；Seaming chuck 23, push-down head 30, left pressure it is respectively arranged with in counter-force casing 27
26 and right pressure head 29；Described left pressure head 26 is connected with the first static load piston 39 of the first hydraulic jack 24, described right pressure head
29 are connected with the second static load piston 38 of the second hydraulic jack 28, and the dynamic load of described seaming chuck 23 and the 4th hydraulic jack 20 is lived
Plug 37 is connected, described dynamic load piston 37 be arranged on drop hammer 7 lower section, described push-down head 30 is fixed on the end of counter-force casing 27
Portion, is oppositely arranged with seaming chuck 23, and described 4th hydraulic jack 20 is axial compression hydraulic jack, the first hydraulic jack 24 and the second liquid
Compressing cylinder 28 is side pressure hydraulic jack；Described 4th hydraulic jack 20 is fixed on counter-force casing 27, the 4th by end cap 22
The outer surface of hydraulic jack 20 is provided with screw thread, is set with nut 21, described nut 21 and the 4th outside the 4th hydraulic jack 20
Hydraulic jack 20 is threaded；Described end cap 22 is connected by screw bolt and nut is fixing with counter-force casing 27.
Described load control system includes hydraulic power unit 34, and described hydraulic power unit 34 is respectively by high-pressure oil pipe 33 and first
Hydraulic jack the 24, second hydraulic jack the 28, the 3rd hydraulic jack 1 and the 4th hydraulic jack 20 are connected.Described hydraulic power unit 34
It is made up of motor, solenoid directional control valve, Pressure gauge and controller etc., utilizes controller to control the switch of solenoid directional control valve, come with this
Realize controlling the first hydraulic jack the 24, second hydraulic jack the 28, the 3rd hydraulic jack 1 and the 4th hydraulic jack 20 simultaneously, thus
First hydraulic jack the 24, second hydraulic jack the 28, the 3rd hydraulic jack 1 and the 4th hydraulic jack 20 is made to realize permanent displacement, dead load
Lotus, permanent rate of displacement, constant loading rate control to load, and gather pressure data by the Pressure gauge of hydraulic power unit 34, logical
Cross controller regulation magnitude of load.
Described high speed data signal acquiring system includes shock sensors 36 and computer 32, described shock sensors
36 tops being arranged on dynamic load piston 37, it is connected with computer 32.High speed data signal acquiring system is passed by impulsive force
Sensor 36 can realize the collection to collision force of the breath value, and utilizes computer 32 to analyze impact process power-strain curve
And force value.
Explanation application this utility model carries out the single test process of rock sound state impact test below in conjunction with the accompanying drawings, presses
Following steps perform:
Step one: apply dead load,
Test specimen 25 is put into the counter-force casing 27 of dead load loading system, opens hydraulic power unit 34, open control side pressure
The valve of hydraulic jack, applies side pressure by the first hydraulic jack 24 and the second hydraulic jack 28 to test specimen 25, observes pressure simultaneously
Power meter reading, is loaded into closedown valve when requiring pressure and makes pressure keep constant；Open the valve controlling axial compression hydraulic jack again
Door, applies axial compression by the 4th hydraulic jack 20 to test specimen 25, observes pressure gauge reading simultaneously, is loaded into when requiring pressure and closes
Valve closing door makes pressure keep constant；
Step 2: apply shock loading,
Open the valve of the 3rd hydraulic jack 1 controlling impulsive force loading system, pull pull bar 6 to rise, rise to requirement
Time highly, pressing is dropped hammer and is discharged the positioning body 8 of device 3, makes 7 releases of dropping hammer, and hits shock sensors 36, applies to test specimen 25
Shock loading；
Step 3: record data, analyzes experimental result,
Impact process force value size is recorded by shock sensors 36 by computer 32, and by 32 points of computer
The analysis test specimen 25 mechanical characteristic under coupled static-dynamic loadingi.
As the spring energy-storage of impulsive force loading system need to be regulated, the length of flexible spacing collar 40 only need to be regulated.
Claims (4)
1. an accumulation of energy drop hammer type coupled static-dynamic loadingi assay device, it is characterised in that include framework, impulsive force loading system, quiet
Load loading system, load control system and high speed data signal acquiring system；
Described impulsive force loading system includes the 3rd hydraulic jack, flexible spacing collar, drop hammer release device, pull bar, sleeve, bullet
Spring and dropping hammer；The described release device that drops hammer includes that center has the positioning sleeve in hole, location, and the bottom of positioning sleeve is provided with groove,
Be provided with gland in the bottom of groove, the inner of described groove is connected with hole, location；Claw it is provided with, at claw in groove
And being provided with back-moving spring in the groove between positioning sleeve, the middle part of claw is provided with locating groove, the bottom of positioning body sets
Putting in described locating groove, the lateral surface of described positioning body bottom has inclined-plane；One end of described sleeve is closed, and the other end opens
Open, the center of sleeve blind end be provided with through hole, described in drop hammer and be arranged in sleeve；The upper end of pull bar leading to through sleeve
Kong Hou, is arranged in the hole, location of the release device that drops hammer, is provided with draw-in groove in the upper end of pull bar, and the inner of described claw is arranged on
In the draw-in groove of pull bar, the lower end of pull bar and fixing connection of dropping hammer, in the sleeve above dropping hammer, it is provided with spring；Described flexible limit
Position sleeve is fixed on the framework above the release device positioning sleeve that drops hammer, and the 3rd hydraulic jack is fixed on the center of frame roof
Place, the piston rod of the 3rd hydraulic jack is fixing with the positioning sleeve of the release device that drops hammer after passing flexible spacing collar to be connected；Described
Sleeve is fixed on the center of frame mid portion；
Described dead load loading system includes counter-force casing, is respectively arranged with seaming chuck, push-down head, left pressure head in reaction box body
With right pressure head；First static load piston of described left pressure head and the first hydraulic jack is connected, described right pressure head and the second hydraulic oil
Second static load piston of cylinder is connected, and the dynamic load piston of described seaming chuck and the 4th hydraulic jack is connected, described dynamic load piston
Being arranged on the lower section dropped hammer, described push-down head is fixed on the bottom of counter-force casing, is oppositely arranged with seaming chuck；
Described load control system includes hydraulic power unit, described hydraulic power unit respectively by high-pressure oil pipe and the first hydraulic jack,
Second hydraulic jack, the 3rd hydraulic jack and the 4th hydraulic jack are connected；
Described high speed data signal acquiring system includes that shock sensors and computer, described shock sensors are arranged on dynamic
Carrying the top of piston, it is connected with computer.
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device the most according to claim 1, it is characterised in that described in drop hammer and release
Putting the groove bottom the positioning sleeve of device and be provided with three, three grooves are circumferentially uniformly distributed.
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device the most according to claim 1, it is characterised in that described pull bar
Upper end is taper, and it is connected with dropping hammer to be threadably secured, and the piston rod of the 3rd hydraulic jack discharges the location of device with dropping hammer
Set is threadably secured connection.
Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device the most according to claim 1, it is characterised in that described framework bag
Include base plate, column, crossbeam and top board beam, be followed successively by base plate, crossbeam and top board beam, described base plate, crossbeam and top board from the bottom to top
Beam is connected by column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620734008.5U CN205826426U (en) | 2016-07-12 | 2016-07-12 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620734008.5U CN205826426U (en) | 2016-07-12 | 2016-07-12 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
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| Publication Number | Publication Date |
|---|---|
| CN205826426U true CN205826426U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620734008.5U Withdrawn - After Issue CN205826426U (en) | 2016-07-12 | 2016-07-12 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198227A (en) * | 2016-07-12 | 2016-12-07 | 辽宁工程技术大学 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
| CN107860660A (en) * | 2017-11-15 | 2018-03-30 | 扬州市江都永坚有限公司 | A kind of rock mass engineering project dynamic disaster simulation experiment system of large-tonnage |
| CN110031321A (en) * | 2019-04-12 | 2019-07-19 | 山东科技大学 | A kind of sound carries superposing type rock mechanics experiment machine and test method |
| CN113188919A (en) * | 2021-04-20 | 2021-07-30 | 山东大学 | Single-power-source high-low pressure self-adaptive high-precision dynamic and static loading test system |
-
2016
- 2016-07-12 CN CN201620734008.5U patent/CN205826426U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198227A (en) * | 2016-07-12 | 2016-12-07 | 辽宁工程技术大学 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
| CN106198227B (en) * | 2016-07-12 | 2023-01-24 | 辽宁工程技术大学 | Energy storage drop hammer type dynamic and static combined loading test device |
| CN107860660A (en) * | 2017-11-15 | 2018-03-30 | 扬州市江都永坚有限公司 | A kind of rock mass engineering project dynamic disaster simulation experiment system of large-tonnage |
| CN110031321A (en) * | 2019-04-12 | 2019-07-19 | 山东科技大学 | A kind of sound carries superposing type rock mechanics experiment machine and test method |
| CN110031321B (en) * | 2019-04-12 | 2020-07-07 | 山东科技大学 | Dynamic and static load superposition type rock mechanics testing machine and testing method |
| CN113188919A (en) * | 2021-04-20 | 2021-07-30 | 山东大学 | Single-power-source high-low pressure self-adaptive high-precision dynamic and static loading test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161221 Effective date of abandoning: 20230124 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161221 Effective date of abandoning: 20230124 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |