A kind of be used to test power head type drill rig feed power, pulling force proving installation
Technical field
The utility model relate to a kind of be used to test power head type drill rig feed power, pulling force proving installation.
Background technology
When being tested, the power head type drill rig ability can test the ability of pulling out that feeds, rises of power head type drill rig usually; The feeding of current driving force hair style rig, work that to pull out the aptitude tests device mainly be to be fixed on the special-purpose rig testboard bay; The design feature of this proving installation is the tailpiece of the piston rod connection pull pressure sensor at the single pole two-way cylinder; The power that feeds of power head type drill rig, pulling force are applied on the pull pressure sensor through drilling rod and drilling rod catcher, and the oil inlet and outlet of the oil cylinder throttling valve of respectively connecting is through regulating the openings of sizes of throttling valve; To regulate return pressure, realize the resistance of the feeding of artificial increase and decrease rig, pulling action.This device in use needs firm reliably rig, and will guarantee that the unit head of rig and proving installation keep concentric, but often is difficult to accomplish that cause when feeding the power test, drilling rod arches upward easily, influences measuring accuracy.
Summary of the invention
The technical matters that the utility model solved provides the existing rig of a kind of solution firm loaded down with trivial details and rig and proving installation eccentricity issues, can play effectively simplify the firm program of rig, assurance drill power head and concentric being used to of proving installation test power head type drill rig feed power, pulling force proving installation.
For solving above-mentioned technical matters, the technical scheme that the utility model adopts:
A kind of be used to test power head type drill rig feed power, pulling force proving installation; Its special character is: comprise oil cylinder, power transmission core bar, rocker bar bearing, backing plate; Oil cylinder is arranged on the rocker bar bearing and the rocker bar bearing bottom is provided with backing plate; The piston rod of oil cylinder is a hollow structure, and the power transmission core bar is located in the piston rod, and the end of power transmission core bar is provided with pull pressure sensor; The bottom of the backing plate of described proving installation is arranged on the rig fuselage guide rail through the clamper seat, and drill power head adds the test drilling rod of holding and is connected with pull pressure sensor through the drilling rod catcher.
Above-mentioned proving installation is concentric with drill power head.
Above-mentioned oil cylinder is two bar two-way cylinders.
Pass through auxiliary pipe fitting series connection ratio pressure adjustment relief valve between two hydraulic fluid ports of above-mentioned oil cylinder.
The above-mentioned power transmission core bar and the piston rod two ends of oil cylinder are provided with thrust button respectively.
Compared with prior art, the beneficial effect of the utility model:
The utility model is connected with the pull pressure sensor of proving installation the test drilling rod of drill power head clamping through the drilling rod catcher; Rig is carried out and has been fed, stirred when doing; The oil cylinder piston bar plays the load effect, and this moment, pull pressure sensor reading and hydraulic pressure sensor reading can reflect that power head type drill rig feeds, the test value of pulling force.
The utility model does not need firm rig, and device is good to neutrality with drill power head, reduces test error.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Scheme of installation when Fig. 2 is the utility model use;
1-drilling rod catcher, 2-pull pressure sensor, 3-power transmission core bar, 4-oil cylinder, 5-ratio pressure adjustment relief valve, 6-rocker bar bearing, 7-auxiliary pipe fitting, 8-backing plate, 9-clamper seat, 10-rig fuselage guide rail, 11-drill power head, 12-test drilling rod.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
Referring to Fig. 1,2; The utility model comprises oil cylinder 4, power transmission core bar 3, rocker bar bearing 6, backing plate 8; Oil cylinder 4 is arranged on the rocker bar bearing 6 and rocker bar bearing 6 bottoms are provided with backing plate 8; The piston rod of oil cylinder 4 is a hollow structure, and power transmission core bar 3 is located in the piston rod, and the end of power transmission core bar 3 is provided with pull pressure sensor 2; The bottom of the backing plate 8 of described proving installation is arranged on the rig fuselage guide rail 10 through clamper seat 9, and drill power head adds the test drilling rod held 12 and is connected with pull pressure sensor 2 through drilling rod catcher 1.
Above-mentioned proving installation is concentric with drill power head, can on the rig of different model, use through the backing plate 8 on the adjustment clamper seat 9, guarantees that drill power head is concentric with proving installation.
Above-mentioned oil cylinder 4 is two bar two-way cylinders.
Through auxiliary pipe fitting 7 series connection ratio pressure adjustment relief valves 5, regulate the opening of ratio pressure adjustment relief valve and can control the resistance in the oil cylinder motion, and do not need to establish fuel tank in addition between two hydraulic fluid ports of above-mentioned oil cylinder 4, simple in structure.
Above-mentioned power transmission core bar 3 is provided with thrust button respectively with the piston rod two ends of oil cylinder 4, guarantee rig carry out feed/piston rod moves with drilling rod during pulling action, and has guide effect.
The principle of work of the utility model is:
The test drilling rod 12 of drill power head 8 is carried out and is fed pulling action; Test drilling rod 12 drives pull pressure sensor 2, power transmission core bar 3 and two bar two-way cylinder 4 piston rods action through drilling rod catcher 1; Because the throttling action of the ratio pressure adjustment relief valve 5 of 4 two hydraulic fluid port series connection of two bar two-way cylinders; Two bar two-way cylinders 4 become the load that rig feeds pulling action, through regulating the opening degree of ratio pressure adjustment relief valve 5, regulate the speed that feeds pulling action; In the process of two bar two-way cylinder 4 piston rod movements, the reading of pull pressure sensor 2 is the test value that institute's survey rig has fed the ability of pulling out.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used the drilling rod catcher morely, pull pressure sensor, power transmission core bar; Oil cylinder, ratio pressure adjustment relief valve, clamper seat; Rig fuselage guide rail, drill power head, terms such as test drilling rod; But do not get rid of the possibility of using other term, using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.