Heavy-load impact-resistant bearing seat casting

Abstract

The heavy-load impact-resistant bearing seat casting comprises a bearing seat body and a base body, and fixing seat bodies are arranged on the two sides of the bearing seat body correspondingly; the bearing seat body is connected with the base body through two support bodies, and the two support bodies are symmetrically arranged on the two sides of the bearing seat body; the bearing seat body and the fixed seat body are both of a cylindrical structure, and a middle connecting lug is arranged on the outer circumferential surface of the bearing seat body; side edge connecting lugs are arranged on the outer circumferences of the fixing base bodies, pull rods penetrate through the middle connecting lugs and the two side edge connecting lugs corresponding to the middle connecting lugs, and the two ends of each pull rod are locked through nuts, so that the two fixing base bodies clamp and fix bearings on the inner sides of the bearing base bodies. The bearing seat body is supported through the support body, the base body can be used for fixing the bearing seat, after bearing parts are installed in the bearing seat body, the fixing seat bodies on the two sides can be locked through the pull rods, a bearing is fixed in the axial direction, it is guaranteed that the bearing has good stability and impact resistance, and the bearing seat can be suitable for the heavy load working condition.

Description

Technical Field

[0001] The present invention belongs to the technical field of casting production, and particularly relates to a bearing housing casting with heavy load resistance and impact resistance. Background Art

[0002] The bearing housing casting is an important mechanical component, which provides support and fixation between the main part of the machine and the shaft. Its design and manufacture involve multiple aspects, including material selection, casting process, structural design, and quality inspection, etc. For heavy-duty working conditions, during the operation of the equipment, the bearing housing bears a large weight and often has large vibrations, making the connection between the machine body and the rotating parts unstable, easily affecting the rotating parts, and even causing damage, and also accelerating the fatigue damage of the machine. When installing bearings on ordinary bearing housing castings, parts such as circlips are commonly used to limit the position of the bearings. Under heavy-duty conditions with vibration and impact, the parts used to limit the position of the bearings are prone to damage. In the prior art, for bearing housing castings used in heavy-duty working conditions, in order to improve the structural reliability, the operation is very inconvenient when installing, disassembling, or replacing bearings. Therefore, it is necessary to improve the existing bearing housing castings. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a bearing housing casting with heavy load resistance and impact resistance.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows:

[0005] A bearing housing casting with heavy load resistance and impact resistance includes a bearing housing body and a base body. Fixed seat bodies are respectively arranged on both sides of the bearing housing body; the bearing housing body and the base body are connected by two support bodies, and these two support bodies are symmetrically arranged on both sides of the bearing housing body; the bearing housing body and the fixed seat bodies are both in a cylindrical structure. Three intermediate connecting ears are evenly distributed on the outer circumferential surface of the bearing housing body, and one of the intermediate connecting ears is located between the two support bodies;

[0006] Three side connecting ears are evenly distributed on the outer circumference of the fixed seat body, and each side connecting ear on each fixed seat body is arranged corresponding to the intermediate connecting ear on the bearing housing body. A pull rod penetrates through the intermediate connecting ear and its corresponding two side connecting ears, and both ends of the pull rod are locked by nuts, so that the two fixed seat bodies clamp and fix the bearing inside the bearing housing body; on one side of each fixed seat body facing the bearing housing body, there is a bearing outer ring pressing part extending into the inner cavity of the bearing housing body; in the height direction, the upper edge of the intermediate connecting ear in the upper position is lower than the upper edge of the bearing housing body, and the upper edge of the side connecting ear in the upper position is lower than the upper edge of the fixed seat body.

[0007] Furthermore, several fixing holes are symmetrically arranged on the base body.

[0008] Further, 4 to 6 fixing holes are symmetrically arranged on the base body.

[0009] Further, the cross-section of the support body gradually increases from top to bottom.

[0010] Further, the bearing seat body, the base body and the support body therebetween are integrally cast.

[0011] Further, the bearing outer ring pressing part is annular.

[0012] Further, the bearing outer ring pressing part is in sliding fit with the inner wall of the bearing seat body.

[0013] Further, the outer diameter of the bearing seat body is the same as the outer diameter of the fixed seat body.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] In the present invention, the bearing seat body is supported by the support body, and the base body can be used for fixing the bearing seat. After installing the bearing parts in the bearing seat body, the fixed seat bodies on both sides can be locked by using the tie rod, so as to axially fix the bearing, ensure that the bearing has good stability and good impact resistance, and can be applied to heavy-duty working conditions. At the same time, it is very convenient for bearing installation and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic diagram of the present invention after removing the tie rod and the nut;

[0019] Figure 3 is a schematic diagram of the present invention in a disassembled state;

[0020] Figure 4 is a schematic diagram of the fixed seat body in the present invention;

[0021] Figure 5 is a schematic structural diagram of the integrally cast bearing seat body, support body and base body of the present invention;

[0022] Figure 6 is for this Figure 5 three-dimensional structural schematic diagram. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0026] The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] A heavy-duty impact-resistant bearing housing casting, as Figures 1 to 6 shown, includes a bearing housing body 1 and a base body 2. Fixed seat bodies 3 are respectively provided on both sides of the bearing housing body; the bearing housing body and the base body are connected by two support body 4, and the two support bodies are symmetrically arranged on both sides of the bearing housing body, and a hollow position 11 is formed between the two support bodies; the bearing housing body and the fixed seat body are both in a cylindrical structure, and three intermediate connecting ears 5 are evenly arranged on the outer circumferential surface of the bearing housing body, and one of the intermediate connecting ears is located at the hollow position between the two support bodies.

[0028] Three side connection ears 6 are evenly distributed on the outer circumference of the fixed seat body, and each side connection ear on each fixed seat body corresponds to the middle connection ear on the bearing seat body one by one. After installing a bearing in the bearing seat body, a pull rod 7 passes through between the middle connection ear and the corresponding two side connection ears on both sides, and nuts 8 are used to lock both ends of the pull rod, so that the two fixed seat bodies clamp and fix the bearing on the inner side of the bearing seat body; specifically, on one side of each fixed seat body facing the bearing seat body, there is a bearing outer ring pressing part 9 extending into the inner cavity of the bearing seat body. By using the bearing outer ring pressing part, the bearing outer ring is fixed, ensuring the axial stability of the bearing, having good impact resistance, and being applicable to heavy-duty working conditions.

[0029] In the height direction, the upper edge of the middle connection ear in the upper position is lower than the upper edge of the bearing seat body, and the upper edge of the side connection ear in the upper position is lower than the upper edge of the fixed seat body, ensuring that the middle connection ear does not protrude above the upper edge of the bearing seat body and the side connection ear is not at the upper edge of the fixed seat body, minimizing interference during the actual use of the bearing seat.

[0030] Generally, the cross-section of the support body gradually increases from top to bottom. The bearing seat body, the base body, and the support body between the two are integrally cast. Several fixing holes 10 are symmetrically arranged on the base body. As an example, 4 - 6 fixing holes are symmetrically arranged on the base body. The bearing outer ring pressing part is annular and is in sliding fit with the inner wall of the bearing seat body. The outer diameter of the bearing seat body is the same as the outer diameter of the fixed seat body. The bearing in the bearing seat body is fixed by the two fixed seat bodies, with a very reliable structure, and it is very convenient to install, disassemble, and replace the bearing.

[0031] The structure of the present invention is reasonably designed. The bearing seat body is supported by the support body, and the base body can be used to fix this bearing seat. After installing bearing parts in the bearing seat body, the two fixed seat bodies can be locked by using the pull rod to axially fix the bearing, ensuring good stability of the bearing, having good impact resistance, and being applicable to heavy-duty working conditions. At the same time, the pull rod is very convenient to disassemble. After the fixed seat body is removed, it is very convenient to install and replace the bearing. Moreover, there is no threaded structure on the bearing seat body, with good durability. If the thread pair of the pull rod is damaged, only the pull rod or the nut needs to be replaced.

[0032] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heavy-load and impact-resistant bearing seat casting, characterized in that: The cam body has two cam bodies, each of which is connected to the bearing seat body by a toothed connection, and the cam body has two cam bodies, each of which is connected to the bearing seat body by a toothed connection, and the cam body has two cam bodies, each of which is connected to the bearing seat body by a toothed connection.

2. A heavy-load and impact-resistant bearing seat casting according to claim 1, characterized in that: A plurality of fixing holes are symmetrically arranged on the base body.

3. A heavy-load and impact-resistant bearing seat casting according to claim 2, characterized in that: 4-6 fixing holes are symmetrically arranged on the base body.

4. A heavy-load and impact-resistant bearing seat casting according to claim 1, characterized in that: The cross section of the support body increases from top to bottom.

5. A heavy-load and impact-resistant bearing seat casting according to claim 1 or 4, characterized in that: The bearing seat body, the base body and the support body therebetween are integrally cast.

6. A heavy-load and impact-resistant bearing seat casting according to claim 1, characterized in that: The bearing outer ring pressing portion is annular.

7. A heavy-load and impact-resistant bearing seat casting according to claim 1, characterized in that: The pressing part of the bearing outer ring is slidably matched with the inner wall of the bearing seat body.

8. A heavy-load and impact-resistant bearing seat casting according to claim 1, characterized in that: The outer diameter of the bearing housing is the same as the outer diameter of the fixed housing.

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