Impeller, manufacturing technology thereof and hydraulic torque converter
A technology of impellers and blades, which is applied in the direction of belts/chains/gears, fluid transmission devices, mechanical equipment, etc., can solve the problems of low production efficiency, waste of sand binder and electric energy, and high production costs, and achieve the effect of improving casting efficiency
Pending Publication Date: 2018-08-17
SHANTUI CONSTR MASCH CO LTD
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Problems solved by technology
[0007] An object of the present invention is to provide a kind of impeller and its manufacturing process to solve the problem that the impeller of the hydraulic torque converter used in the construction machinery in the prior art is cast through sand cores, which wastes sand, binder and electric energy, and Low production efficiency and high production cost
[0008] Another object of the present invention is to provide a hydraulic torque converter to solve the problem that the hydraulic torque converter used in construction machinery in the prior art adopts sand core casting, which wastes sand, binder and electric energy, and reduces the production efficiency. Low, high production costs
Method used
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[0033] The technical solutions of the present invention will be further described below in conjunction with the drawings and specific implementations.
[0034] Such as Figure 4~7 As shown, this embodiment provides an impeller. The impeller includes an impeller body and an inner shell 3. The impeller body includes an integrally arranged outer shell 1 and at least three blades 2. The outer shell 1 is bowl-shaped, and the two ends are transparent. The blades 2 are arranged at equal angles along the central axis of the casing 1. The blade 2 includes an inner ring surface 21, an outer ring surface, and a peripheral surface 22 connecting the inner ring surface 21 and the outer ring surface. The inner ring surface 21, the outer ring surface, and the peripheral surface 22 are all three-dimensional curved surfaces, and the outer ring surface is attached to the housing 1 Closely, the inner ring surface 21 is far away from the outer shell 1 and fits and abuts against the outer surface of ...
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The invention relates to the technical field of impellers and particularly discloses an impeller, a manufacturing technology thereof and a hydraulic torque converter. The impeller comprises an impeller body and an inner shell; the impeller body comprises an outer shell and blades which are integrally formed; at least three blades are arranged along a center axis of the outer shell at an equal angle and each comprise an outer ring surface adhered to the outer shell, an inner ring surface far away from the outer shell and a peripheral surface used for connecting the inner ring surface with the outer ring surface,; a projection of each inner ring surface in a direction of the center axis is located in a range of a projection of the corresponding outer ring surface in the direction of the center axis; and the inner shell is adhered to the inner peripheral surfaces of the blades. For the impeller, by enabling the projection of each inner ring surface of each blade in the direction of the center axis of the shell to be located in the range of the projection of the corresponding outer ring surface in the direction of the center axis, during mold opening and closing, a mold structure cannot generate interference with a blade structure, so that the impeller body can be in integral formation by adopting a pressure casting technology, sand core casting is avoided from being adopted, the casting efficiency is improved without wasting sands, an adhesive and an electric power, and the impeller is more environmentally friendly.
Description
Technical field [0001] The invention relates to the field of impellers, in particular to an impeller and its manufacturing process and a hydraulic torque converter. Background technique [0002] Construction machinery generally works in the field, mainly using internal combustion engines as the power source. There are four main types of power transmission: mechanical transmission, hydraulic transmission, hydraulic transmission and electric transmission. [0003] Hydraulic transmission is to use the kinetic energy of the liquid to transfer energy. Hydraulic transmission has the following advantages, such as low-speed torque increase, good starting performance, automatic adaptation to external loads, flexible liquid transmission cushioning and shock isolation, preventing overload and flameout, etc., can adapt to harsh conditions, complex and variable loads, and is widely used Applied to construction machinery. [0004] The hydraulic torque converter is the main component of hydraulic...
Claims
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Login to View More IPC IPC(8): F16H47/08
CPCF16H47/08
Inventor 孙玲玲雷福斗
Owner SHANTUI CONSTR MASCH CO LTD