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Hydraulic system for hydraulic rock drill testing

A hydraulic rock drill and hydraulic system technology, which is applied in the direction of mechanical equipment, fluid pressure actuators, servo motors, etc., can solve problems such as lack of performance testing of rock drills, avoid damage to the hydraulic system of the drilling rig, and simplify the circuit of the hydraulic system. Difficult Effects of Performance Testing

Inactive Publication Date: 2017-09-08
HUNAN UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rock drills produced by manufacturers seldom perform performance tests, and are generally installed directly on the rock drilling rig for operation.

Method used

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  • Hydraulic system for hydraulic rock drill testing
  • Hydraulic system for hydraulic rock drill testing
  • Hydraulic system for hydraulic rock drill testing

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Embodiment Construction

[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0013] See Figure 1-2 , The present invention provides a hydraulic system for testing a hydraulic rock drill, including a hydraulic oil tank 1, a stop valve C2, a hydraulic pump 3, an overflow valve 4, a reversing valve 5, a hydraulic control check valve 6, a hydraulic cylinder 7, a single Direction valve 8, shut-off valve D9, pressure sensor 10, pressure gauge 11, gravity accumulator 12, hydraulic pump 3 sucks low-pressure oil from hyd...

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Abstract

The invention discloses a hydraulic system for hydraulic rock drill testing. The hydraulic system comprises a hydraulic oil tank, a check valve C, a hydraulic pump, an overflow valve, a reversing valve, a liquid control one-way valve, an impacted oil cylinder, a one-way valve, a check valve D, a pressure sensor, a pressure gauge and a gravity energy accumulator. When the system is used for testing a hydraulic rock drill, an impacted piston is subjected to rock drill impacts, a balance weight block in the gravity energy accumulator ascends by a certain height under the action of hydraulic oil, and the impact energy of the hydraulic rock drill is measured according to the ascending height of the balance weight block. Energy equivalent to the ascending height of the balance weight block can be calibrated and converted according to a heavy hammer with the fixed height. The check valve D in a system loop can be opened, and the durable running test of the rock drill can be conducted. The system is applicable to testing of performance of various hydraulic rock drills different in power, operation is simple, and calculation is convenient.

Description

Technical field [0001] The invention belongs to the technical field of engineering machinery, and specifically relates to a hydraulic system for testing a hydraulic rock drill. Background technique [0002] Hydraulic rock drills have been widely used in construction, tunnels, and mines. Hydraulic rock drills are precision equipment. Test operation and running-in tests are required before use to test their impact performance. Currently, rock drills produced by manufacturers rarely perform performance tests, and are generally installed directly on the rock drill rigs for operation. The test system can conveniently test the performance and durability of the rock drill before the rock drill is installed on the drill rig, run-in the new factory rock drill, solve the safety detection problem of the hydraulic rock drill before installing the drill rig, improve work efficiency, and avoid the problem of rock drill Damage to the hydraulic system of the drill rig caused by its own problems...

Claims

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Application Information

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IPC IPC(8): F15B1/02F15B11/08F15B13/04
CPCF15B1/02F15B11/08F15B13/04F15B2211/205F15B2211/212
Inventor 李叶林周志鸿罗佑新吴晓耿晓光
Owner HUNAN UNIV OF ARTS & SCI
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