Single-row crossed roller type slewing bearing

Abstract

The utility model relates to the technical field of slewing bearings, in particular to a single-row crossed roller type slewing bearing. Comprising an inner ring seat and an oil injection hole, the inner ring seat is sleeved with an outer ring seat, a rotating pin roller and an isolation block are installed between the outer ring seat and the inner ring seat, the oil injection hole is formed in one side of the outer ring seat, an oil discharge outlet is formed in the other side of the outer ring seat, and small flow dividing holes are formed in the inner side of the oil injection hole. A diversion cone is arranged at the position, close to the oil injection hole and the diversion small hole, of the outer ring seat, an oil discharge hole is formed in the front end of the oil discharge port, and oil hole threaded plugs are connected to the inner sides of the oil injection hole and the oil discharge port in a threaded mode. Cleaning machine oil is injected from the position of the oil injection hole to the position of the rotating pin roller, the cleaning machine oil can be shunted through cooperation of the shunting small hole and the shunting cone, the cleaning machine oil makes full contact with the rotating pin roller and the isolation block, and then old lubricating oil is comprehensively discharged; and lubricating oil can be comprehensively replaced, and follow-up work of the device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to slewing ring technical field, concretely to a single row cross roller slewing ring. BACKGROUND

[0002] Single row cross roller slewing ring is an important mechanical component, is widely used in hoisting and transportation, engineering machinery and military products etc. field, when external load acts on slewing support, roller rolls on the track between inner and outer rings, thereby realizing relative rotation of inner and outer rings. Cross arrangement design of roller makes load can be evenly distributed, improves bearing capacity.

[0003] The patent with patent announcement number CN215370638U proposes a single row cross roller slewing ring, which mainly includes inner ring seat, upper outer ring seat, lower outer ring seat, roller, first pin hole, oil injection hole, silk hole, threaded shaft and pin head, can satisfy the operation precision, and the roller is convenient to install or replace, and it is convenient to add lubricating oil, the surface lubricating oil consumption of roller is small when rotating, the slewing ring is not damaged due to the increase of surface friction coefficient of roller, and the service life of slewing ring is improved.

[0004] When replacing lubricating oil, the remaining lubricating oil on the roller is flushed out by using a cleaning machine oil, and then new lubricating oil is filled, so as to ensure the quality of lubrication, but the oil injection hole of the above-mentioned patent is a single hole, which can not fully replace the lubricating oil, affect the subsequent work of the device, and further affect the service life of the device. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims at providing a single row cross roller slewing ring, which solves the problem that the oil injection hole is a single hole, which can not fully replace the lubricating oil, affects the subsequent work of the device, and further affects the service life of the device.

[0006] To achieve the above purpose, the utility model adopts the technical scheme of a single row cross roller slewing ring, which comprises an inner ring seat and an oil injection hole, an upper sealing gasket is clamped and installed above the inner ring seat, a roller installation plug is installed on the inner side of the upper sealing gasket, an outer ring seat is sleeved on the outer side of the inner ring seat, a lower sealing gasket is clamped and installed below the outer ring seat, a rotating roller is installed at the middle part of the outer ring seat and the inner ring seat, a separation block is filled between the rotating roller and the rotating roller, an oil injection hole is formed on one side of the outer ring seat, an oil discharge port is formed on the other side of the outer ring seat, a shunt small hole is formed on the inner side of the oil injection hole, a shunt cone is arranged at the position close to the oil injection hole and the shunt small hole of the outer ring seat, an oil discharge hole is formed at the front end of the oil discharge port, and an oil hole threaded plug is screwed on the inner side of the oil injection hole and the oil discharge port.

[0007] The utility model discloses beneficial effect is: from the position of oil injection hole to the position of rotating roller injection cleaning machine oil, can be shunted to cleaning machine oil through the shunt little hole cooperation shunt cone, and cleaning machine oil is fully contacted with rotating roller and isolation block, and then old lubricating oil is discharged comprehensively, and the lubricating oil can be replaced comprehensively by injecting lubricating oil into the inner ring seat inside through the oil injection hole, guarantee the follow -up work of device.

[0008] In order to facilitate the shunting of cleaning machine oil:

[0009] As the further improvement of the above technical scheme: the shunt cone is set up in conical shape.

[0010] As the further improvement of the above technical scheme: the shunt little hole is communicated with the position of rotating roller after penetrating the outer ring seat with the oil injection hole.

[0011] As the further improvement of the above technical scheme: the shunt little hole is distributed in the front end of the oil injection hole along the axis of the oil injection hole.

[0012] The beneficial effect of the improvement is: the shunt cone set up in conical shape cooperates with the circumferentially distributed shunt little hole, which can contact cleaning machine oil with rotating roller from multiple positions at the same time, clean old lubricating oil on rotating roller and isolation block comprehensively, and guarantee the replacement efficiency and effect of lubricating oil.

[0013] In order to facilitate the discharge of old lubricating oil:

[0014] As the further improvement of the above technical scheme: the oil discharge hole is distributed in the front end of the oil injection hole along the axis of the oil discharge port.

[0015] The beneficial effect of the improvement is: the circumferentially distributed oil discharge hole can facilitate the discharge of old lubricating oil under the driving of cleaning machine oil.

[0016] In order to facilitate the unscrewing of oil hole threaded plug:

[0017] As the further improvement of the above technical scheme: a slot is arranged at the end of the oil hole threaded plug.

[0018] The beneficial effect of the improvement is: the slot can facilitate workers to use screwdriver to unscrew and screw the oil hole threaded plug from the oil injection hole and the oil discharge port.

[0019] In order to facilitate the installation of inner ring seat:

[0020] As the further improvement of the above technical scheme: the through hole is arranged on the inner ring seat and the outer ring seat.

[0021] The beneficial effect of the improvement is: the inner ring seat and the outer ring seat can be installed on the equipment through the through hole, and the position of the inner ring seat and the outer ring seat is fixed.

[0022] In order to ensure the sealing:

[0023] As a further improvement of the above technical solution: the upper sealing gasket and the inner ring seat are coaxially arranged.

[0024] The beneficial effects of the improvement are: the coaxial arrangement can make the upper sealing gasket seal the connection between the outer ring seat and the inner ring seat comprehensively and reliably. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall axial structure.

[0026] Figure 2 It is a schematic diagram of the overall cross-sectional axial structure.

[0027] Figure 3 It is a schematic diagram of the overall front cross-sectional structure.

[0028] Figure 4 It is Figure 3 It is a schematic diagram of the enlarged structure at A in the middle.

[0029] Figure 5 It is Figure 3 It is a schematic diagram of the enlarged structure at B in the middle.

[0030] In the figure: 1, inner ring seat; 11, upper sealing gasket; 12, lower sealing gasket; 13, roller mounting plug; 2, outer ring seat; 3, rotating roller; 31, isolation block; 4, oil injection hole; 41, shunt small hole; 42, shunt cone; 5, oil discharge port; 51, oil discharge hole; 6, oil hole threaded plug. DETAILED DESCRIPTION

[0031] In order to make the skilled in the art better understand the technical solution of the present application, the present application will be described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0032] As Figures 1-5As shown, a single row cross roller slewing bearing, including inner ring seat 1 and oil injection hole 4, the upper side of the inner ring seat 1 is clamped and installed with upper sealing pad 11, and the inner side of the upper sealing pad 11 is installed with roller mounting plug 13, the outer side of the inner ring seat 1 is sleeved with outer ring seat 2, and the lower side of the outer ring seat 2 is clamped and installed with lower sealing pad 12, the middle part of the outer ring seat 2 and the inner ring seat 1 is installed with rotating roller 3, and the rotating roller 3 is filled with isolation block 31 between the rotating roller 3 and the rotating roller 3, one side of the outer ring seat 2 is provided with oil injection hole 4, and the other side of the outer ring seat 2 is provided with oil discharge port 5, the inner side of the oil injection hole 4 is provided with shunt small hole 41, the position of the outer ring seat 2 close to the oil injection hole 4 and the shunt small hole 41 is provided with shunt taper 42, the front end of the oil discharge port 5 is provided with oil discharge hole 51, the inner side of the oil injection hole 4 and the oil discharge port 5 is screwed with oil hole threaded plug 6, the cleaning machine oil is injected from the position of the oil injection hole 4 to the position of the rotating roller 3, the cleaning machine oil can be shunted through the cooperation of the shunt small hole 41 and the shunt taper 42, the cleaning machine oil fully contacts with the rotating roller 3 and the isolation block 31, and then the old lubricating oil is fully discharged, the lubricating oil can be fully replaced by injecting the lubricating oil into the inner ring seat 1, which ensures the subsequent work of the device, the shunt taper 42 is provided in a conical shape, the shunt small hole 41 cooperates with the oil injection hole 4 to penetrate the outer ring seat 2 and communicate with the position of the rotating roller 3, the shunt small hole 41 is circumferentially distributed at the front end of the oil injection hole 4 along the axis of the oil injection hole 4, the cleaning machine oil can be contacted with the rotating roller 3 from multiple positions at the same time through the cooperation of the conical shunt taper 42 and the circumferentially distributed shunt small hole 41, which can fully clean the old lubricating oil on the rotating roller 3 and the isolation block 31, and ensure the efficiency and effect of lubricating oil replacement, the oil discharge hole 51 is circumferentially distributed at the front end of the oil injection hole 4 along the axis of the oil discharge port 5, the circumferentially distributed oil discharge hole 51 can facilitate the old lubricating oil to be discharged under the driving of the cleaning machine oil, a slot is formed at the end of the oil hole threaded plug 6, the slot can facilitate workers to use screwdriver to rotate the oil hole threaded plug 6 out of and into the oil injection hole 4 and the oil discharge port 5, a through hole is formed in the inner ring seat 1 and the outer ring seat 2, the inner ring seat 1 and the outer ring seat 2 can be installed on the equipment through the through hole, the position of the inner ring seat 1 and the outer ring seat 2 is fixed, the upper sealing pad 11 and the inner ring seat 1 are coaxially arranged, the coaxial arrangement can make the upper sealing pad 11 fully and reliably seal the connection between the outer ring seat 2 and the inner ring seat 1.

[0033] The working principle of the utility model is as follows: when the device is used, the oil hole threaded plug 6 on the oil injection hole 4 and the oil discharge port 5 is unscrewed, the cleaning machine oil is injected from the position of the oil injection hole 4 to the position of the rotating roller 3, the inner ring seat 1 is rotated during the cleaning process, the machine oil reaches the rotating roller 3 and the isolation block 31 after passing through the shunt small hole 41, the shunt small hole 41 cooperates with the shunt cone 42 to shunt the cleaning machine oil, the cleaning machine oil fully contacts the rotating roller 3 and the isolation block 31, and then the old lubricating oil is fully discharged, the oil hole threaded plug 6 on the oil discharge port 5 is screwed in after the discharge is completed, the lubricating oil is injected into the inner ring seat 1 through the oil injection hole 4, the lubricating oil fully contacts the rotating roller 3 and the isolation block 31 by rotating the inner ring seat 1 during the injection process, the lubricating oil is fully replaced, and the subsequent work of the device is ensured.

[0034] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, such that processes, methods, articles, or devices that comprise a list of elements do not only include those elements, but also other elements not explicitly listed, or other elements inherent to such processes, methods, articles, or devices.

[0035] The principles and implementation modes of the utility model are described by specific examples in this document, and the above examples are only used to help understand the method and core idea of the utility model. The above description is only the preferred implementation mode of the utility model, and it should be pointed out that due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary technical personnel in this technical field, without departing from the principles of the utility model, some improvements, decorations or changes can be made, or the above technical features can be combined in an appropriate way; these improvements, decorations, changes or combinations, or the direct application of the utility model concept and technical scheme to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A single-row cross-roller type slewing bearing comprising an inner ring seat (1) and an oil injection hole (4), characterized in that: The upper sealing gasket (11) is clamped and installed above the inner ring seat (1), and the inner side of the upper sealing gasket (11) is provided with a roller mounting plug (13); the outer side of the inner ring seat (1) is sleeved with an outer ring seat (2), and the lower side of the outer ring seat (2) is clamped and installed with a lower sealing gasket (12); the middle part of the outer ring seat (2) and the inner ring seat (1) is provided with a rotating roller (3), and the rotating roller (3) is filled with a separation block (31) between the rotating rollers (3); one side of the outer ring seat (2) is provided with an oil injection hole (4), and the other side of the outer ring seat (2) is provided with an oil discharge port (5); the inner side of the oil injection hole (4) is provided with a shunt small hole (41); the outer ring seat (2) is provided with a shunt cone (42) near the position of the oil injection hole (4) and the shunt small hole (41); the front end of the oil discharge port (5) is provided with an oil discharge hole (51); the inner side of the oil injection hole (4) and the oil discharge port (5) is screwed with an oil hole threaded plug (6).

2. A single-row cross-roller slewing bearing according to claim 1, characterized in that: The shunt cone (42) is conical.

3. A cross roller type slewing bearing according to claim 1, characterized in that: The shunt small hole (41) is communicated with the position of the rotating roller (3) after penetrating the outer ring seat (2) in cooperation with the oil injection hole (4).

4. A cross roller type slewing bearing according to claim 1, characterized in that: The shunt small hole (41) is circumferentially distributed at the front end of the oil injection hole (4) along the axis of the oil injection hole (4).

5. A cross roller type slewing bearing according to claim 1, characterized in that: The oil discharge hole (51) is circumferentially distributed at the front end of the oil injection hole (4) along the axis of the oil discharge port (5).

6. A cross roller type slewing bearing according to claim 1, characterized in that: The oil hole threaded plug (6) is provided with a one-way slot at the end.

7. A cross roller type rotary support according to claim 1, characterized in that: The inner ring seat (1) and the outer ring seat (2) are both provided with through holes.

8. A cross roller type rotary support according to claim 1, characterized in that: The upper sealing gasket (11) and the inner ring seat (1) are coaxially arranged.

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