A hydraulic system for testing a hydraulic rock drill

A hydraulic rock drill and hydraulic system technology, which is applied to 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, improve work efficiency, and solve qualified problems. Detect the effect of the problem

Inactive Publication Date: 2018-07-06
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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  • A hydraulic system for testing a hydraulic rock drill
  • A hydraulic system for testing a hydraulic rock drill
  • A hydraulic system for testing a hydraulic rock drill

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0013] see Figure 1-2 , a hydraulic system for testing a hydraulic rock drill provided by the present invention includes a hydraulic oil tank 1, a shut-off valve C2, a hydraulic pump 3, an overflow valve 4, a reversing valve 5, a hydraulic control check valve 6, a flushed cylinder 7, a single Directional valve 8, cut-off valve D9, pressure sensor 10, pressure gauge 11, gravity accumulator 12, hydraulic pump 3 sucks low-pressure oil from hydraulic oil tank 1 t...

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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 in particular 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 mining. Hydraulic rock drills are precision equipment. Before use, they need to be tested for test operation and running-in to test their impact performance. The rock drills produced by current manufacturers seldom perform performance tests, and are generally directly installed on the rock drilling rig for operation. The test system can conveniently detect the performance and durability of the rock drill before installing the drilling rig, run-in the new factory rock drill, solve the problem of safety inspection before the hydraulic rock drill is installed on the drilling rig, improve work efficiency, and avoid the failure of the The hydraulic system of the drilling rig is damaged due to its own p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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