Road building machinery insert bearing convenient to disassemble and assemble

Abstract

The utility model provides a road building machinery insert bearing convenient to disassemble and assemble, and relates to the technical field of insert bearings. Penetrating bolt holes are formed in the two ends of the bearing seat respectively; and three through threaded holes are formed in the middle of the bearing seat. Lubricating oil is injected from the oil inlet hole through the needle tube, the lubricating oil can be adhered to the rotating surface of the steel ball, friction is reduced, the service life of the bearing is prolonged, the lubricating oil can be injected into the steel ball without dismounting the bearing, the time for dismounting the bearing is saved, the working efficiency is improved, the threaded rod, the fastener and the screw are all taken down in a rotating mode, and the service life of the bearing is prolonged. Therefore, the bearing can be completely detached so as to replace parts, and the problems that the steel balls in the insert bearing can rotate and frequently rub when the insert bearing is used, so that the steel balls need to be sealed, lubricating oil needs to be conveniently injected to reduce the friction force of the steel balls, otherwise, the friction force of the steel balls in the bearing is increased, and the service life of the bearing is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of outer spherical bearings, in particular to an outer spherical bearing for road construction machinery which can be easily disassembled and assembled. Background Art

[0002] With the continuous advancement of transportation infrastructure construction, road construction machinery plays an important role in the road construction process. Road construction machinery is mainly used for paving, compacting and maintaining roads. Among them, outer spherical bearings, as one of the key components in mechanical equipment, bear the function of supporting and transmitting loads during vehicle driving and construction, and play a vital role. Traditional outer spherical bearings have some inconveniences in the installation and disassembly process, which requires professional tools and complex operations to complete, restricting the use efficiency and maintenance cost of road construction machinery. In order to solve the problems of traditional outer spherical bearings, researchers have proposed a road construction machinery outer spherical bearing that is easy to disassemble and assemble. This bearing adopts a new structural design, which makes it more convenient and faster to disassemble and assemble, and improves the use efficiency and maintenance convenience of road construction machinery.

[0003] During the use of the outer spherical bearings on road construction machinery, the steel balls inside the outer spherical bearings will rotate and rub frequently. Therefore, the steel balls need to be sealed, and lubricating oil needs to be injected to reduce the friction of the steel balls. Otherwise, the friction of the steel balls in the bearings will increase, resulting in a shortened service life of the bearings. The bearings must be installed on the bearing seats for easy disassembly and assembly, otherwise it will waste time disassembling and assembling the bearings. Utility Model Content

[0004] The disclosed embodiment relates to an external spherical bearing for road construction machinery which is convenient to disassemble and assemble. The steel ball in the bearing will rotate and frequently rub against the inner and outer rings of the bearing. At this time, the steel ball will be sealed by the sealing ring and the sealing disk, so that external dust will not enter the steel ball, thereby ensuring the normal use of the bearing. The lubricating oil is injected from the oil inlet hole using a needle tube, and the lubricating oil will adhere to the rotating surface of the steel ball to reduce friction and extend the service life of the bearing. The lubricating oil can be injected into the steel ball without disassembling the bearing, which not only saves the time of disassembling the bearing but also improves the work efficiency. The threaded rod, fasteners and screws are all rotated and removed, so that the bearing can be completely disassembled for replacement of parts.

[0005] In a first aspect of the present disclosure, a road construction machinery outer spherical bearing that is convenient to disassemble and assemble is provided, specifically comprising: a bearing seat; two ends of the bearing seat are respectively provided with through bolt holes; the middle of the bearing seat is provided with three through threaded holes; a butt-jointed limiting plate is installed at the upper end of the bearing seat, and three through circular holes are respectively opened at the two ends of the limiting plate; limiting rings are respectively fixedly installed at the outer ends of the inner annular side walls of the two limiting plates;

[0006] The three circular holes on the upper ends of the two limiting disks are respectively inserted with penetrating fasteners; the inner concave surfaces of the two limiting disks are fixedly fastened with outer rings; a sealing disk is fixedly installed at the rear end of the outer ring, a retainer is fixedly installed on the front side wall of the sealing disk, and a threaded groove is opened on the retainer, and steel balls are evenly installed on the retainer;

[0007] An inner ring is rotatably mounted at the front end of the sealing disk, and an extension ring is fixedly mounted at the front end of the inner ring. A penetrating oil inlet hole is opened at the left end of the sealing disk, a sealing member is rotatably inserted at the oil inlet hole, and a sealing plug is fixedly mounted at the front end of the sealing member.

[0008] In at least some embodiments, a stabilizing groove is provided in the middle of the top end of the bearing seat, and threaded rods penetrating therethrough are rotatably inserted into the three threaded holes of the bearing seat.

[0009] In at least some embodiments, a rotation groove is provided at the front end of the inner annular side wall of the outer ring, a sealing ring is installed at the front end of the outer ring, and two penetrating circular holes are respectively provided at both ends of the sealing ring.

[0010] In at least some embodiments, a sealing ring is fixedly mounted on the outer annular side wall of the sealing ring, and penetrating screws are respectively inserted into the circular holes at both ends of the sealing ring.

[0011] The utility model provides a road construction machinery outer spherical bearing that is convenient to disassemble and assemble, and has the following beneficial effects:

[0012] When the foreign spherical bearing of the utility model is in use, the steel ball in the bearing will rotate and frequently rub against the inner and outer rings of the bearing. At this time, the steel ball will be sealed by the sealing ring and the sealing disk, so that dust from the outside will not enter the steel ball, thereby ensuring the normal use of the bearing. The lubricating oil is injected from the oil inlet hole using a needle tube, and the lubricating oil will adhere to the rotating surface of the steel ball to reduce friction and extend the service life of the bearing. The lubricating oil can be injected into the steel ball without disassembling the bearing, which not only saves the time for disassembling the bearing but also improves the work efficiency. The threaded rod, fasteners and screws are all rotated and removed, so that the bearing can be completely disassembled for replacing parts.

[0013] The threaded rod is rotated and inserted into the threaded hole of the bearing seat, and at the same time penetrates the three round holes at the lower end of the limiting plate. The lower ends of the two limiting plates are fixed together with the threaded rod, and the upper ends of the two limiting plates are fixed together with fasteners. The lower ends of the limiting plates are then fixedly installed in the stable groove to prevent the limiting plates from being touched and tilted. The threaded rod is rotated and removed, and the two limiting plates can be pulled out of the stable groove for easy disassembly. The screws are then removed to facilitate disassembly of the entire bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached picture:

[0017] Figure 1 The schematic diagram of the upper left front axial structure of the present application is shown;

[0018] Figure 2 A schematic diagram of the disassembled structure of the limiting disk and the outer ring of the present application is shown;

[0019] Figure 3 A schematic diagram of the partially disassembled structure of the outer ring and the sealing disc of the present application is shown;

[0020] Figure 4 A partial cross-sectional structural schematic diagram of the sealing disk of the present application is shown;

[0021] Figure 5 A schematic diagram of the explosion structure of the present application is shown.

[0022] Reference numerals list

[0023] Bearing seat; 101, stabilizing groove; 102, threaded rod; 2, limiting plate; 201, limiting ring; 202, fastener; 3, outer ring; 301, rotating groove; 302, sealing ring; 303, sealing ring; 304, screw; 4, sealing plate; 401, retainer; 402, steel ball; 403, inner ring; 404, extension ring; 405, oil inlet hole; 406, seal. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figures 1 to 5 :

[0026] The utility model proposes an external spherical bearing for road construction machinery that is convenient to disassemble and assemble, comprising: a bearing seat 1; two ends of the bearing seat 1 are respectively provided with penetrating bolt holes; the bolts are inserted through the bolt holes of the bearing seat 1 and rotated to be installed on the road construction machinery to fix and restrict the bearing seat 1, so that the bearing seat 1 will not fall off the road construction machinery, and three penetrating threaded holes are opened in the middle of the bearing seat 1; a stabilizing groove 101 is opened in the middle of the top of the bearing seat 1, and penetrating threaded rods 102 are respectively inserted through the three threaded holes of the bearing seat 1, and the threaded rods 102 are rotatably inserted in the threaded holes of the bearing seat 1 and penetrate the three circular holes at the lower end of the limiting disk 2 at the same time, and the lower ends of the two limiting disks 2 are fixed together by the threaded rods 102, and the lower ends of the limiting disks 2 are fixedly installed in the stabilizing groove 101 to prevent the limiting disks 2 from falling off. The disk 2 is tilted by being touched, and the threaded rod 102 is rotated and removed, and the two limiting disks 2 can be pulled out of the stabilizing groove 101 for easy disassembly. A docking limiting disk 2 is installed at the upper end of the bearing seat 1, and three through circular holes are respectively opened at both ends of the limiting disk 2; limiting rings 201 are fixedly installed at the outer ends of the inner annular side walls of the two limiting disks 2; the limiting rings 201 at both ends are attached to the side walls of the outer ring 3, and limit the edges at the front and rear ends of the outer ring 3 to prevent the outer ring 3 from slipping out of the inner annular side walls of the two limiting disks 2, and through fasteners 202 are respectively inserted in the three circular holes at the upper ends of the two limiting disks 2; the upper ends of the two limiting disks 2 are fixed together by the fasteners 202, and the inner concave surfaces of the two limiting disks 2 are fixedly fastened with the outer ring 3; a sealing disk 4 is fixedly installed at the rear end of the outer ring 3.

[0027] The sealing ring 302 is provided with a screw thread 304 at the bottom of the seal ring 301, and the sealing ring 303 is provided with a screw thread 304 at the bottom of the seal ring 301. The sealing ring 303 is provided with a screw thread 304 at the bottom of the seal ring 302, and the sealing ring 303 is provided with a screw thread 304 at the bottom of the seal ring 301. The sealing ring 302 and the sealing disk 4 are fixedly connected together, and the sealing ring 302 and the sealing disk 4 are used to seal the outer ring 3 and the inner ring 403, so that the retainer 401 and the steel ball 402 will not be exposed to the outside, and the sealing ring 302 and the sealing disk 4 seal the retainer 401, so that dust from the outside will not enter, and the lubricating oil at the retainer 401 and the steel ball 402 will not leak, thereby ensuring the normal use of the outer spherical bearing and extending the service life of the outer spherical bearing.

[0028] Among them, a retainer 401 is fixedly installed on the front side wall of the sealing disk 4, and a thread groove is opened on the retainer 401, and steel balls 402 are evenly installed on the retainer 401. The inner and outer ends of the steel balls 402 are respectively rolled against the side walls of the outer ring 3 and the inner ring 403. The inner ring 403 is rotatably installed at the front end of the sealing disk 4, and an extension ring 404 is fixedly installed at the front end of the inner ring 403. The road construction machinery is fixedly connected to the extension ring 404. A penetrating oil inlet hole 405 is opened at the left end of the sealing disk 4. The oil inlet hole 405 is rotatably inserted. There is a seal 406, and a sealing plug is fixedly installed at the front end of the seal 406. The sealing plug seals the oil inlet hole 405 to prevent the lubricating oil in the bearing from flowing out from the oil inlet hole 405. The seal 406 is rotated and removed, and then the lubricating oil is injected from the oil inlet hole 405 with a needle, and then the seal 406 is rotated and installed to the oil inlet hole 405 for sealing. In this way, the lubricating oil can be injected into the steel ball 402 without disassembling the entire bearing. The lubricating oil adheres to the surface of the steel ball 402 to reduce friction and extend the service life of the bearing.

[0029] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 5 As shown, an inner ring 403 is rotatably installed at the front end of the sealing disk 4, and an extension ring 404 is fixedly installed at the front end of the inner ring 403. A thread is provided on the annular side wall at the outer end of the extension ring 404 to facilitate the fixed connection between the road construction machinery and the extension ring 404. In this way, the road construction machinery and the extension ring 404 are convenient for disassembly and assembly, thereby improving work efficiency.

[0030] The working principle of this embodiment is as follows: when in use, the bolt is inserted through the bolt hole of the bearing seat 1 and rotated to be inserted on the road construction machinery to fix and restrict the bearing seat 1. The threaded rod 102 is rotated and inserted into the threaded hole of the bearing seat 1 and penetrates the three circular holes at the lower end of the limiting plate 2. The lower ends of the two limiting plates 2 are fixed together with the threaded rod 102, and the upper ends of the two limiting plates 2 are fixed together with the fastener 202. Then, the lower ends of the limiting plates 2 are fixedly installed in the stabilizing groove 101 to prevent the limiting plates 2 from being touched and tilted. The threaded rod 102 is rotated and removed, and the two limiting plates 2 can be pulled out of the stabilizing groove 101 for easy disassembly. The rear end of the screw 304 is rotated and inserted into the threaded groove of the retainer 401 to fix the sealing ring 3 02 and sealing disk 4 are fixedly connected together, and the outer ring 3 and inner ring 403 are sealed with sealing ring 302 and sealing disk 4, so that retainer 401 and steel ball 402 will not be exposed to the outside, and sealing ring 302 and sealing disk 4 seal retainer 401, and external dust will not enter. At the same time, the lubricating oil at retainer 401 and steel ball 402 will not leak. Rotate and remove seal 406, and then use a needle to inject lubricating oil from oil inlet 405, and then rotate seal 406 to install it to oil inlet 405 for sealing. In this way, the lubricating oil can be injected into steel ball 402 without disassembling the entire bearing. The lubricating oil adheres to the surface of steel ball 402 to reduce friction and extend the service life of the bearing.

[0031] In this article, there are a few points to note:

[0032] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0033] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0034] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An external spherical bearing for road construction machinery that is convenient to disassemble and assemble, comprising: A bearing seat (1); bolt holes are respectively provided at both ends of the bearing seat (1); three threaded holes are provided in the middle of the bearing seat (1); the bearing seat (1) is characterized in that a butt-jointed limiting plate (2) is installed at the upper end of the bearing seat (1), and three circular holes are respectively provided at both ends of the limiting plate (2); limiting rings (201) are respectively fixedly installed at the outer ends of the inner annular side walls of the two limiting plates (2); fasteners (202) are respectively inserted into the three circular holes at the upper ends of the two limiting plates (2); the inner concave surfaces of the two limiting plates (2) are fixedly fastened with an outer ring (3); and a sealing plate (4) is fixedly installed at the rear end of the outer ring (3).

2. The conveniently disassembled outer spherical bearing for road construction machinery according to claim 1, characterized in that: A stabilizing groove (101) is provided in the middle of the top end of the bearing seat (1), and threaded rods (102) are rotatably inserted through the three threaded holes of the bearing seat (1).

3. The conveniently disassembled outer spherical bearing for road construction machinery according to claim 1, characterized in that: A rotation groove (301) is provided at the front end of the inner annular side wall of the outer ring (3), a sealing ring (302) is installed at the front end of the outer ring (3), and two through-going circular holes are respectively provided at both ends of the sealing ring (302).

4. The conveniently disassembled outer spherical bearing for road construction machinery according to claim 3, characterized in that: A sealing ring (303) is fixedly mounted on the outer annular side wall of the sealing ring (302), and screws (304) are respectively inserted through the circular holes at both ends of the sealing ring (302).

5. The conveniently disassembled outer spherical bearing for road construction machinery according to claim 1, characterized in that: A retainer (401) is fixedly mounted on the front side wall of the sealing disk (4), a threaded groove is provided on the retainer (401), and steel balls (402) are evenly mounted on the retainer (401).

6. The conveniently disassembled outer spherical bearing for road construction machinery according to claim 1, characterized in that: An inner ring (403) is rotatably mounted at the front end of the sealing disk (4), while an extension ring (404) is fixedly mounted at the front end of the inner ring (403).

7. The conveniently disassembled outer spherical bearing for road construction machinery according to claim 1, characterized in that: The left end of the sealing disk (4) is provided with a penetrating oil inlet hole (405), a sealing member (406) is rotatably inserted in the oil inlet hole (405), and a sealing plug is fixedly installed at the front end of the sealing member (406).

Images