Oil-immersed guide wheel
By using liquid lubricating oil and sealing cover structure in the guide wheel of the crawler rice harvester, the problem of uneven lubrication caused by butter lubrication is solved, the service life and maintenance convenience of the bearing are improved, and the better lubrication effect is achieved.
Patent Information
- Application Number
- CN202421003089.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The guide wheels of existing crawler rice harvesters are lubricated with butter, resulting in uneven lubrication distribution, resulting in bearing wear and affecting service life.
Design an oil-immersed guide wheel, which uses liquid lubricating oil (such as engine oil or hydraulic oil). Through the sealing cover and lubricating oil cavity structure, ensures even distribution of lubricating oil, provides convenient lubricating oil injection methods, and reduces wear and failure.
It achieves uniform lubrication of liquid lubricating oil, reduces bearing wear and failure rates, improves service life, facilitates continuous maintenance, and maintains a good working condition.
Smart Images
Figure CN222157643U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of harvesters, and in particular relates to an oil-immersed guide wheel. Background Art
[0002] The bearings of the guide wheels of existing crawler rice harvesters are generally lubricated with butter (grease), which is injected into the bearings when the bearings are installed. Since butter is usually semi-solid or paste-like at room temperature, it is easy to cause uneven distribution of butter inside the bearings, and the bearings are prone to wear after long-term use, which reduces the service life. Utility Model Content
[0003] The purpose of the utility model is to provide an oil-immersed guide wheel to solve the above-mentioned problems existing in the background technology.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0005] An oil-immersed guide wheel comprises a wheel body, a sealing cover and a shaft sleeve; a step hole is provided in the middle of the wheel body, the shaft sleeve is fixed in the step hole, an annular boss for axially limiting the bearing is provided on the inner circumferential side wall of the shaft sleeve, a lubricating oil through hole for lubricating the bearing is provided on the side wall of the shaft sleeve, one end of the wheel body is sealed by a sealing cover, the sealing cover is detachably fixedly connected to the wheel body, two ends of the shaft sleeve respectively tightly pass through the wheel body and the sealing cover, an oil filling hole is provided on the sealing cover, a sealing cavity enclosed by the sealing cover, the step hole and the shaft sleeve is a lubricating oil cavity, and the oil filling hole is communicated with the lubricating oil through hole through the lubricating oil cavity.
[0006] Furthermore, a base is fixed on the bottom surface of the step hole of the wheel body, and the base is fixed on the outer circumferential side wall of the sleeve. The lubricating oil passes through the base and the side wall of the sleeve coaxially through the hole, and the sealing cover is detachably fixedly connected to the base of the wheel body.
[0007] Furthermore, a plurality of connecting ears are evenly distributed along the circumferential direction on the outer circumferential side wall of the base, a threaded hole is axially provided on each connecting ear, a plurality of through holes are provided on the sealing cover, and the plurality of through holes are coaxially arranged with the threaded holes of the plurality of connecting ears one by one, and the sealing cover is screwed and fixedly connected with the plurality of threaded holes on the base by means of screws inserted into the plurality of through holes.
[0008] Furthermore, the number of the plurality of threaded holes is 4-6.
[0009] Furthermore, the wheel body, the shaft sleeve and the base are made into one piece.
[0010] Furthermore, a sealing cover is arranged in the step hole of the wheel body, and the sealing cover includes an end cover and a sealing gasket. The sealing gasket is arranged on the step end surface of the step hole, and the end cover is arranged on the sealing gasket. A coaxial center hole is arranged in the middle of the end cover and the sealing gasket, and the shaft sleeve passes through the center hole tightly.
[0011] Furthermore, the liquid lubricating oil is engine oil or hydraulic oil.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The guide wheel of the utility model adopts liquid lubricating oil for lubrication of its bearing, which has uniform lubrication and good lubrication effect, reduces wear and failure rate, and increases the service life of the bearing.
[0014] 2. The guide wheel of the utility model can be injected with lubricating oil at any time, which is convenient for maintenance, and helps the bearing to continuously maintain a good working condition. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view of an oil-immersed guide wheel of the utility model, with the sealing cover not installed;
[0016] Figure 2 yes Figure 1 Rear view of
[0017] Figure 3 It is a cross-sectional view of an oil-immersed guide wheel of the utility model;
[0018] Figure 4 yes Figure 3 main view.
[0019] The names and reference numerals of the components involved in the above drawings are as follows:
[0020] Wheel body 1, sealing cover 2, shaft sleeve 3, annular boss 4, lubricating oil through hole 5, oil filling hole 6, lubricating oil chamber 7, base 8, connecting ear 9, threaded hole 10, stepped annular groove 11, screw 12, end cover 13, sealing gasket 14, annular groove 15. DETAILED DESCRIPTION
[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] Specific implementation method 1: Figure 1-Figure 4As shown, this embodiment records an oil-immersed guide wheel, including a wheel body 1, a sealing cover 2, and a sleeve 3; a step hole is provided in the middle of the wheel body 1, the sleeve 3 is fixed in the step hole, an annular boss 4 for axially limiting the bearing is provided on the inner circumferential side wall of the sleeve 3, and a lubricating oil through hole 5 for lubricating the bearing is provided on the side wall of the sleeve 3. One end of the wheel body 1 is sealed by the sealing cover 2, and the sealing cover 2 is detachably fixedly connected to the wheel body 1. The two ends of the sleeve 3 are respectively tightly passed through the wheel body 1 and the sealing cover 2, and an oil filling hole 6 is provided on the sealing cover 2. The sealed cavity surrounded by the sealing cover 2, the step hole and the sleeve 3 is a lubricating oil cavity 7, and the oil filling hole 6 is connected with the lubricating oil through hole 5 through the lubricating oil cavity 7. The liquid lubricating oil is injected into the lubricating oil cavity 7 through the oil filling hole 6, and the bearing is lubricated through the lubricating oil through hole 5.
[0023] Furthermore, a base 8 is fixed on the bottom surface of the step hole of the wheel body 1, and the base 8 is fixed on the outer circumferential side wall of the sleeve 3. The lubricating oil passes through the base 8 and the side wall of the sleeve 3 coaxially through the hole 5, and the sealing cover 2 is detachably fixedly connected to the base 8 of the wheel body 1.
[0024] Furthermore, a plurality of connecting ears 9 are evenly distributed along the circumferential direction on the outer circumferential side wall of the base 8, and a threaded hole 10 is axially provided on each connecting ear 9. A plurality of through holes are provided on the sealing cover 2, and the plurality of through holes are coaxially arranged with the threaded holes 10 of the plurality of connecting ears 9. The sealing cover 2 is fixedly connected to the plurality of threaded holes 10 on the base 8 by screws 12 inserted into the plurality of through holes.
[0025] Furthermore, the number of the plurality of threaded holes 10 is 4-6, which is selected according to needs.
[0026] Furthermore, the wheel body 1, the shaft sleeve 3 and the base 8 are made as one body, for example, by casting.
[0027] Furthermore, the sealing cover 2 is arranged in the step hole of the wheel body 1, and the sealing cover 2 includes an end cover 13 and a sealing gasket 14. The sealing gasket 14 is arranged on the step end face of the step hole, and the end cover 13 is arranged on the sealing gasket 14. A coaxial center hole is provided in the middle of the end cover 13 and the sealing gasket 14, and the shaft sleeve 3 passes tightly through the center hole.
[0028] Furthermore, an annular groove 15 is provided on the inner circumferential side wall of one end of the sleeve 3 that tightly passes through the sealing cover 2 for accommodating a sealing ring, and a stepped annular groove 11 is provided at the other end of the sleeve 3 for accommodating an oil seal, which is prior art.
[0029] Furthermore, the liquid lubricating oil is engine oil, such as gear oil; or hydraulic oil.
[0030] The guide wheel of the utility model is a guide wheel on the crawler of a crawler rice harvester. The wheel axle of the guide wheel is assembled with the shaft sleeve 3 through a bearing, and the sealing structure at both ends of the bearing is the same as the guide wheel structure on the crawler of the existing crawler rice harvester, which is the prior art and is not shown in the figure.
[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms of assembly without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalents of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An oil-immersed guide wheel, comprising a wheel body (1), a sealing cover (2), and a shaft sleeve (3); characterized in that: A step hole is provided in the middle of the wheel body (1), the shaft sleeve (3) is fixed in the step hole, an annular boss (4) for limiting the axial position of the bearing is provided on the inner circumferential side wall of the shaft sleeve (3), a lubricating oil through hole (5) for lubricating the bearing is provided on the side wall of the shaft sleeve (3), one end of the wheel body (1) is sealed by a sealing cover (2), the sealing cover (2) and the wheel body (1) are detachably fixedly connected, the two ends of the shaft sleeve (3) respectively pass through the wheel body (1) and the sealing cover (2), an oil injection hole (6) is provided on the sealing cover (2), a sealing cavity enclosed by the sealing cover (2), the step hole and the shaft sleeve (3) is a lubricating oil cavity (7), and the oil injection hole (6) is communicated with the lubricating oil through hole (5) through the lubricating oil cavity (7).
2. The oil-immersed guide wheel according to claim 1, characterized in that: A base (8) is fixed on the bottom surface of the step hole of the wheel body (1), and the base (8) is fixed on the outer circumferential side wall of the shaft sleeve (3). Lubricating oil passes through the base (8) and the side wall of the shaft sleeve (3) coaxially through the hole (5), and the sealing cover (2) is detachably fixedly connected to the base (8) of the wheel body (1).
3. The oil-immersed guide wheel according to claim 2, characterized in that: A plurality of connection ears (9) are evenly distributed along the circumferential direction on the outer circumferential side wall of the base (8), and a threaded hole (10) is axially provided on each connection ear (9). A plurality of through holes are provided on the sealing cover (2), and the plurality of through holes are coaxially arranged with the threaded holes (10) of the plurality of connection ears (9). The sealing cover (2) is screwed and fixedly connected with the plurality of threaded holes (10) on the base (8) by means of screws (12) inserted into the plurality of through holes.
4. The oil-immersed guide wheel according to claim 3, characterized in that: The number of the plurality of threaded holes (10) is 4-6.
5. The oil-immersed guide wheel according to claim 1, characterized in that: The wheel body (1), the shaft sleeve (3) and the base (8) are integrally formed.
6. The oil-immersed guide wheel according to claim 1, characterized in that: The sealing cover (2) is arranged in the step hole of the wheel body (1), and the sealing cover (2) comprises an end cover (13) and a sealing gasket (14). The sealing gasket (14) is arranged on the step end surface of the step hole, and the end cover (13) is arranged on the sealing gasket (14). A coaxial center hole is arranged in the middle of the end cover (13) and the sealing gasket (14), and the shaft sleeve (3) passes through the center hole tightly.
7. The oil-immersed guide wheel according to claim 1, characterized in that: Liquid lubricants are engine oil or hydraulic oil.