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Special casting mold for double-floating ring blank of floating oil seal

A floating oil seal, casting mold technology, applied in the field of casting molds, can solve the problems of poor quality and low qualification rate

Pending Publication Date: 2018-08-03
铁岭桦林浮动油封有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The floating ring billet centrifugally cast by the casting mold in the above prior art is a cylindrical billet, and there are relatively serious shrinkage porosity and blisters inside, and the floating ring for floating oil seals processed further with the above floating ring billet is of poor quality. , the pass rate is low

Method used

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  • Special casting mold for double-floating ring blank of floating oil seal
  • Special casting mold for double-floating ring blank of floating oil seal
  • Special casting mold for double-floating ring blank of floating oil seal

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Embodiment Construction

[0012] see figure 1 , figure 2 , the special casting mold for floating oil seal double floating ring billet of the present invention comprises matching left and right disc-shaped half-molds 1, 2, the left disc-shaped half-mold 1 has a casting material inlet 3, and the right side The disc-shaped half-mold 2 has a transmission shaft installation positioning groove 4. When the disc-shaped half-molds 1 and 2 on the left and right sides are opposed to each other, a cross-section communicating with the casting material inlet 3 is formed inside. Circular mold cavity 5 along the axial direction of the disc-shaped half molds on both sides of the left and right sides. The radial dimension d of the mold chamber 51 1 Greater than the radial dimension d of the mold chambers 52 on both sides 2 .

[0013] see you again image 3 , Figure 4 , image 3 It is a schematic diagram of the front view of the floating oil seal double floating ring blank 100 cast by the casting mold of the pre...

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Abstract

The invention discloses a special casting mold for a double-floating ring blank of a floating oil seal. The special casting mold comprises a left disc-shaped half mold and a right disc-shaped half mold which are matched with each other, a casting material inlet is formed in the left disc-shaped half mold, and a transmission shaft mounting and positioning groove is formed in the right disc-shaped half mold; when the left disc-shaped half mold and the right disc-shaped half mold cooperate oppositely, a mold cavity communicating with the casting material inlet is formed inside the left disc-shaped half mold and the right disc-shaped half mold, the mold cavity is composed of a middle mold chamber and two side mold chambers which are positioned on the two sides of the middle mold chamber, and the radial dimension d1 of the middle mold chamber is larger than the radial dimension d2 of the two side mold chambers. The double-floating ring blank for centrifugal casting is composed of a middle ring and floating rings with the reduced diameters of the left side and the right side, so that the floating rings with the reduced diameters of the left side and the right side are machined into the floating rings used for two floating oil seals, the quality is good, and the product percent of pass is high.

Description

technical field [0001] The invention relates to a casting mold, in particular to a special casting mold for floating oil seal double floating ring blanks. Background technique [0002] Floating oil seal is a kind of dynamic seal. It has super sealing performance in harsh working environments with many coal powders, sediments, and water vapor. It is a compact mechanical seal and is mainly used in low-speed and heavy-duty occasions. It has the advantages of wear resistance, automatic compensation after end face wear, reliable operation, simple structure, etc., and is widely used in coal mine machinery. Generally, it is composed of a floating ring of iron alloy material and a matching rubber O-ring. The floating ring is used in pairs, one rotates with the rotating part, and the other is relatively stationary. The sealing principle of the floating oil seal is: the two floating rings are deformed by the axial compression of the O-shaped sealing ring, which produces a pressing fo...

Claims

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Application Information

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IPC IPC(8): B22C9/22
CPCB22C9/22
Inventor 张永杰
Owner 铁岭桦林浮动油封有限公司
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