CN211901271U

CN211901271U - Three-row ball roller swing rod bearing

Info

Publication number: CN211901271U
Application number: CN202020410075.8U
Authority: CN
Inventors: 陈海波; 李建波; 殷忠路
Original assignee: Wuxi Haoran Precision Machinery Manufacturing Co Ltd
Current assignee: Wuxi Haoran Precision Machinery Manufacturing Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-10
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a three rows of ball roller swing rod bearings, concretely relates to swing rod bearing technical field, including the bearing dabber, the middle part fixed mounting of bearing dabber has oval bearing housing, the pendulum rod base has been cup jointed in the outside activity of oval bearing housing, the spout has been seted up on the inner circle surface of pendulum rod base, the inside movable mounting of spout has ball roller, the left and right sides face of pendulum rod base installs mount pad one through welded fastening respectively. The utility model discloses a set up the oil storage chamber, in the device course of operation, utilize spout cooperation slide to provide the atress fulcrum for three ball rollers of group for the inside atress of swing rod bearing is even, has prolonged the life of device, utilizes the oil feeding hole cooperation screw thread jam simultaneously, is convenient for add lubricating grease to the oil storage chamber, is utilizing the adsorptivity of the oil storage sponge that the oil storage intracavity portion set up, makes a large amount of lubricating oil of disposable interpolation can not all get into slide and spout.

Description

Three-row ball roller swing rod bearing

Technical Field

The utility model relates to a swing rod bearing technical field, more specifically say, the utility model relates to a three rows ball roller swing rod bearing.

Background

The swing rod bearing is a power transmission bearing, is widely applied to control and link mechanisms in machine tools, textile machinery and packaging machinery, is a common part, and comprises a bearing core, a bearing shell and a steel ball clamped between the bearing core and the bearing shell, wherein the steel ball is kept by a retainer; the single-row ball roller structure in the existing swing rod bearing is not uniform enough in overall bearing force, and the overall bearing force is not enough in the using process, so that the service life is short.

In order to solve the above problems, a three-row ball roller rocker bearing is disclosed in patent application publication No. CN206555282U, referring to fig. 5 of the specification, in which 3 raceways are formed on the outer wall of the bearing core, and the inner wall of the bearing shell is provided with rolling grooves matching with the 3 raceways; the steel ball bearing is characterized by also comprising 3 retainers, wherein steel balls are arranged in the retainers; the arrangement of 3 rows of steel balls is adopted, so that the bearing force in the use process is improved, the bearing force is uniformly distributed, and the service life of the whole body is prolonged.

However, the above technical solutions still have many disadvantages in practical use:

one, be equipped with the dovetail that sets up along the raceway diapire through the bottom at the raceway in this comparison file, utilize the dovetail can increase the persistence of lubricating oil, improve inside storage capacity, though the device is provided with dust seal, utilize dust seal to set up the loss that is located the outside reduction lubricating oil of outside holder, prolong lubricated time, nevertheless long-time the use can lead to the gap grow between bearing housing and the pendulum rod, lead to lubricating oil to leak the drippage, the inside lubricating oil memory space of device has been reduced, need frequent interpolation of maintainer, maintainer's work load has been increased.

And secondly, in the working process of the swing rod bearing, the swing rod can swing left and right along with the rolling groove and the rolling way of the bearing, but the device provided in the comparison document lacks a necessary balance structure, and when the swing rod amplitude is too large, the swing rod can collide with two ends of a swing rod core to cause accidental damage, so that the service life of the device is shortened.

Therefore, it is highly desirable to provide a three-row ball roller swing rod bearing with large oil storage capacity and strong balance.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a three rows ball roller swing rod bearing, through setting up the oil storage chamber, in the device working process, utilize spout cooperation slide to provide the atress fulcrum for three ball rollers of group, make the inside atress of swing rod bearing even, the life of device has been prolonged, utilize oil filling hole cooperation screw thread jam simultaneously, be convenient for add lubricating grease to the oil storage chamber, the adsorptivity of the oil storage sponge that utilizes the inside setting of oil storage chamber, make a large amount of lubricating oil of disposable interpolation can not all get into slide and spout, the time interval that lubricating oil added has been prolonged, in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a three-row ball roller swing rod bearing comprises a bearing mandrel, wherein an elliptical bearing shell is fixedly arranged in the middle of the bearing mandrel, the outer part of the oval bearing shell is movably sleeved with a swing rod base, the surface of the inner ring of the swing rod base is provided with a chute, the ball rollers are movably arranged in the sliding groove, the left side surface and the right side surface of the oscillating bar base are respectively fixedly provided with a first mounting seat through welding, the swing rod base is respectively and movably connected with an elastic push rod and an elastic pull rod through the mounting seat, the tail ends of the elastic push rod and the elastic pull rod are movably connected with a second mounting seat, the second mounting seats are fixedly mounted on the outer surfaces of the two ends of the bearing mandrel through welding, the outer surface of the swing rod base is provided with an oil adding hole communicated with the sliding groove, the middle of the oil adding hole is provided with an oil storage cavity, and the top end of the oil adding hole is detachably provided with a thread clamping plug through clamping grooves.

In a preferred embodiment, three slide ways matched with the ball rollers are formed on the surface of the oval bearing shell, and the inner walls of the slide ways are smooth mirror surfaces.

In a preferred embodiment, the number of the sliding grooves is three, the three sliding grooves are communicated through the sliding ways, and a sealing rubber ring is arranged at the joint of the sliding grooves and the oval bearing shell.

In a preferred embodiment, the oil storage cavity is a spherical cavity, a high-compression oil storage sponge is arranged inside the oil storage cavity, and the sliding groove is communicated with the oil storage cavity through the oil adding hole.

In a preferred embodiment, the number of the first installation bases is two, one of the first installation bases is fixedly installed above the left side of the swing rod base and movably connected with the elastic push rod, and the other installation base is fixedly installed below the right side of the swing rod base and movably connected with the elastic pull rod.

In a preferred embodiment, the elastic push rod comprises a push rod sleeve, a thrust spring is movably sleeved inside the push rod sleeve, and the top end of the thrust spring is fixedly connected with the push rod sleeve which is movably sleeved.

In a preferred embodiment, the elastic pull rod comprises a pull rod sleeve, a tension spring is movably sleeved in the pull rod sleeve, and the top end of the tension spring is fixedly connected with a pull rod which is movably sleeved with the pull rod sleeve through welding.

In a preferred embodiment, the elastic push rod and the elastic pull rod are arranged in parallel through the first mounting seat and the second mounting seat.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up the oil storage chamber, in the device course of operation, utilize spout cooperation slide to provide the atress fulcrum for three ball rollers of group, make the inside atress of swing rod bearing even, the life of device has been prolonged, utilize the oil feeding hole cooperation screw thread jam simultaneously, be convenient for add lubricating grease to the oil storage chamber, the adsorptivity at the oil storage sponge that utilizes the inside setting of oil storage chamber, make a large amount of lubricating oil of disposable interpolation can not all get into slide and spout, the time interval that lubricating oil added has been prolonged, maintainer's the amount of labour has been reduced, the practicality of device has been improved.

2. The utility model discloses a set up elasticity push rod and elasticity pull rod, in the device working process, utilize push rod sleeve cooperation thrust spring to provide directional thrust for the push rod, recycle pull rod sleeve cooperation tension spring and provide directional pulling force for the pull rod, let the pendulum rod base bear a set of balanced steady force all the time, avoid the too big both ends damage dabber that collides the bearing dabber of pendulum rod horizontal hunting's deflection angle, prolonged the life of device, increased the practicality of device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the cross-sectional structure of the oval bearing shell of the present invention.

Fig. 3 is a schematic view of the structure of the elastic pushing rod of the present invention.

Fig. 4 is a schematic view of the structure of the elastic pull rod of the present invention.

Fig. 5 is a schematic view of the overall structure of the comparison document.

The reference signs are: 1. a bearing mandrel; 2. an elliptical bearing housing; 3. a swing rod base; 4. a chute; 5. a ball roller; 6. a first mounting seat; 7. an elastic push rod; 8. an elastic pull rod; 9. a second mounting seat; 10. an oil adding hole; 11. an oil storage chamber; 12. a threaded plug; 13. a slideway; 71. a push rod sleeve; 72. a thrust spring; 73. a push rod; 81. a pull rod sleeve; 82. a tension spring; 83. a pull rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The three-row ball roller swing rod bearing shown in the attached figures 1-4 comprises a bearing mandrel 1, an oval bearing shell 2 is fixedly installed in the middle of the bearing mandrel 1, a swing rod base 3 is movably sleeved outside the oval bearing shell 2, a sliding groove 4 is formed in the surface of an inner ring of the swing rod base 3, ball rollers 5 are movably installed inside the sliding groove 4, mounting seats 6 are fixedly installed on the left side surface and the right side surface of the swing rod base 3 through welding respectively, the swing rod base 3 is movably connected with an elastic push rod 7 and an elastic pull rod 8 through the mounting seats 6 respectively, mounting seats 9 are movably connected with the tail ends of the elastic push rod 7 and the elastic pull rod 8 respectively, the mounting seats 9 are fixedly installed on the outer surfaces of the two ends of the bearing mandrel 1 through welding, an oil adding hole 10 communicated with the sliding groove 4 is formed in the outer surface of the swing rod base 3, an, the top end of the oil adding hole 10 is detachably provided with a thread clamping plug 12 through clamping grooves.

Referring to the attached drawing 2 of the specification specifically, three slide ways 13 matched with the ball rollers 5 are formed on the surface of the oval bearing shell 2, and the inner walls of the slide ways 13 are smooth mirror surfaces.

The number of the sliding grooves 4 is three, the three sliding grooves 4 are communicated through a sliding way 13, and sealing rubber rings are arranged at the connecting positions of the sliding grooves 4 and the oval bearing shell 2.

The oil storage cavity 11 is a spherical cavity, the high-compression oil storage sponge is arranged inside the oil storage cavity 11, and the sliding groove 4 is communicated with the oil storage cavity 11 through the oil adding hole 10.

The implementation mode is specifically as follows: through setting up oil storage chamber 11, in the device course of operation, utilize 4 cooperation slides 13 of spout to provide the atress fulcrum for three ball rollers 5 of group, make the inside atress of swing rod bearing even, the life of device has been prolonged, utilize oil filler hole 10 cooperation screw thread jam 12 simultaneously, be convenient for add lubricating grease to oil storage chamber 11, the adsorptivity at the inside oil storage sponge that sets up of utilizing oil storage chamber 11, make a large amount of lubricating oil of disposable interpolation can not all get into slide 13 and spout 4, the time interval that lubricating oil adds has been prolonged, maintainer's the amount of labour has been reduced, the practicality of device has been improved.

Referring to the attached drawing 3 of the specification specifically, the number of the first installation seats 6 is two, one of the first installation seats 6 is fixedly installed above the left side of the swing rod base 3 and movably connected with the elastic push rod 7, and the other installation seat 6 is fixedly installed below the right side of the swing rod base 3 and movably connected with the elastic pull rod 8.

The elastic push rod 7 comprises a push rod sleeve 71, a thrust spring 72 is movably sleeved inside the push rod sleeve 71, and a push rod 73 movably sleeved with the push rod sleeve 71 is fixedly connected to the top end of the thrust spring 72.

The elastic pull rod 8 comprises a pull rod sleeve 81, a tension spring 82 is movably sleeved inside the pull rod sleeve 81, and the top end of the tension spring 82 is fixedly connected with a pull rod 83 which is movably sleeved with the pull rod sleeve 81 through welding.

The elastic push rod 7 and the elastic pull rod 8 are arranged in parallel through the first mounting seat 6 and the second mounting seat 9.

The implementation mode is specifically as follows: through setting up elasticity push rod 7 and elasticity pull rod 8, in the device working process, utilize push rod sleeve 71 cooperation thrust spring 72 to provide directional thrust for push rod 73, recycle pull rod sleeve 81 cooperation tension spring 82 and provide directional pulling force for pull rod 83, let pendulum rod base 3 bear a set of balanced steady force all the time, avoid the too big both ends damage dabber that collides bearing dabber 1 of pendulum rod horizontal hunting deflection angle, prolonged the life of device, increased the practicality of device.

The utility model discloses the theory of operation: firstly, each component is installed and the normal operation of the device is kept, then, through the arrangement of the oil storage cavity 11, in the working process of the device, the sliding groove 4 is matched with the sliding rail 13 to provide stress supporting points for three groups of ball rollers 5, so that the internal stress of the swing rod bearing is uniform, the service life of the device is prolonged, meanwhile, the oil adding hole 10 is matched with the thread clamping plug 12 to facilitate the addition of lubricating grease into the oil storage cavity 11, the adsorbability of oil storage sponge arranged in the oil storage cavity 11 is utilized to prevent a large amount of lubricating oil added at one time from completely entering the sliding rail 13 and the sliding groove 4, the time interval of the addition of the lubricating oil is prolonged, then, through the arrangement of the elastic push rod 7 and the elastic pull rod 8, in the working process of the device, the push rod sleeve 71 is matched with the thrust spring 72 to provide directional thrust for the push rod 73, and, the swing rod base 3 is enabled to bear a group of balance stabilizing force all the time, the phenomenon that the swing rod swings left and right with too large deflection angle and collides with two ends of the bearing mandrel 1 to damage the mandrel is avoided, and the service life of the device is prolonged.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a three rows of ball roller pendulum rod bearings, includes bearing dabber (1), the middle part fixed mounting of bearing dabber (1) has oval bearing shell (2), pendulum rod base (3), its characterized in that have been cup jointed in the outside activity of oval bearing shell (2): the surface of the inner ring of the swing rod base (3) is provided with a chute (4), a ball roller (5) is movably arranged in the chute (4), the left side surface and the right side surface of the swing rod base (3) are respectively fixedly provided with a first mounting seat (6) through welding, the swing rod base (3) is respectively and movably connected with an elastic push rod (7) and an elastic pull rod (8) through the first mounting seat (6), the tail ends of the elastic push rod (7) and the elastic pull rod (8) are movably connected with a second mounting seat (9), the second mounting seat (9) is fixedly mounted on the outer surfaces of the two ends of the bearing mandrel (1) through welding, the outer surface of the swing rod base (3) is provided with an oil adding hole (10) communicated with the sliding chute (4), an oil storage cavity (11) is formed in the middle of the oil adding hole (10), and a thread clamping plug (12) is detachably mounted at the top end of the oil adding hole (10) through clamping grooves.

2. A three row ball roller wobble shaft bearing according to claim 1, wherein: the surface of the oval bearing shell (2) is provided with three slide ways (13) matched with the ball rollers (5), and the inner wall of each slide way (13) is a smooth mirror surface.

3. A three row ball roller wobble shaft bearing according to claim 2, wherein: the quantity of spout (4) is three, and three spout (4) pass through slide (13) are linked together, just spout (4) with the junction of oval bearing shell (2) is equipped with the rubber seal.

4. A three row ball roller wobble shaft bearing according to claim 3, wherein: the oil storage cavity (11) is a spherical cavity, the inside of the oil storage cavity (11) is provided with a high-compression oil storage sponge, and the sliding groove (4) is communicated with the oil storage cavity (11) through the oil adding hole (10).

5. A three row ball roller wobble shaft bearing according to claim 1, wherein: the quantity of mount pad (6) is two, and one of them mount pad (6) fixed mounting be in the left top of pendulum rod base (3) with elasticity push rod (7) are swing joint, another mount pad (6) fixed mounting be in the below on pendulum rod base (3) right side with elasticity pull rod (8) are swing joint.

6. The three row ball roller wobble shaft bearing of claim 5, wherein: elasticity push rod (7) are including push rod sleeve (71), thrust spring (72) have been cup jointed in the inside activity of push rod sleeve (71), the top fixedly connected with of thrust spring (72) push rod sleeve (71) are push rod (73) that the activity cup jointed.

7. The three row ball roller wobble shaft bearing of claim 5, wherein: the elastic pull rod (8) comprises a pull rod sleeve (81), a tension spring (82) is movably sleeved in the pull rod sleeve (81), and the top end of the tension spring (82) is fixedly connected with a pull rod (83) which is movably sleeved with the pull rod sleeve (81) through welding.

8. The three row ball roller wobble shaft bearing of claim 5, wherein: the elastic push rod (7) and the elastic pull rod (8) are arranged in parallel through the first mounting seat (6) and the second mounting seat (9).