Hydraulic expander
A cracking and hydraulic technology, applied in grain processing, etc., can solve the problems of limited working energy, long decomposition time, and poor decomposition ability of hydraulic cylinders, and achieve the effects of guaranteed service life, shortened decomposition time, and improved decomposition ability
Active Publication Date: 2016-06-01
昌乐县永固机械厂
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Problems solved by technology
If a hydraulic cylinder is used, the working energy of the single-cylinder hydraulic cylinder is limited, the decomposition ability is poor, and the decomposition time is long, resulting in low work efficiency; Oil cylinders cause damage and reduce the service life of hydraulic cylinders; if explosives are used, the risk factor is high and it will pollute the environment
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] Such as Figure 1 to Figure 5 Commonly shown, a hydraulic expander includes a cylinder 1, a plurality of annular grooves 11 are arranged in the radial direction of the cylinder 1, a piston 2 is arranged in each annular groove 11, and the cylinder below the piston 2 1 is provided with an oil passage, and each annular groove 11 is connected with the oil passage; in the axial direction of the cylinder 1, there is a long groove 13 that passes through both ends of the cylinder 1 and passes through all the annular grooves 11. The long groove 13 is located at The top of the piston 2 passes through...
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The invention discloses a hydraulic expander. The hydraulic expander comprises cylinder bodies, wherein a plurality of ring-shaped slots are formed in the radial direction of each cylinder body; a piston is arranged in each ring-shaped slot; oil paths are arranged on the cylinder bodies below the pistons; the ring-shaped slots communicate with the oil paths; a long slot which penetrates through the two ends of each cylinder body is formed in the axial direction of the corresponding cylinder body; the long slots are positioned above the pistons; jacking bars which abut against the pistons are restrained in the long slots; cylinder bodies positioned at the two ends of each jacking bar are provided with fixed blocks which are restrained in the long slots; the two ends of each jacking bar are provided with inclined parts; and the inclined parts extend towards the fixed blocks in an inclined mode from one side, far from the pistons, of the corresponding jacking bar. The hydraulic expander is high in safety, and does not damage the environment. During work, the plurality of the pistons act together to generate great working energy, so that capacity of decomposition is greatly improved. Compared with the conventional hydraulic expander, the decomposition time is greatly shortened, so that the working efficiency is effectively improved.
Description
technical field [0001] The invention belongs to the technical field of rock crushing, in particular to a hydraulic expander. Background technique [0002] At this stage, crushing is generally used for small rocks. There are various types of crushing equipment, and the crushing technology is relatively mature. But for large-volume rocks, it needs to be decomposed into small-sized rocks first, and then crushed to ensure the crushing efficiency. [0003] At present, the decomposition of large rocks mostly adopts a single-cylinder hydraulic cylinder to expand and split large-volume rocks, or blasts them with explosives. If a hydraulic cylinder is used, the working energy of the single-cylinder hydraulic cylinder is limited, the decomposition ability is poor, and the decomposition time is long, resulting in low work efficiency; Oil cylinders cause damage and reduce the service life of hydraulic cylinders; if explosives are used, the risk factor is high and the environment will ...
Claims
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IPC IPC(8): B02C19/00
CPCB02C19/00
Inventor 李凤亭李元凯
Owner 昌乐县永固机械厂