CN212979749U - Heavy type maintainable universal wheel - Google Patents
Heavy type maintainable universal wheel Download PDFInfo
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- CN212979749U CN212979749U CN202021738119.6U CN202021738119U CN212979749U CN 212979749 U CN212979749 U CN 212979749U CN 202021738119 U CN202021738119 U CN 202021738119U CN 212979749 U CN212979749 U CN 212979749U
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- universal wheel
- deep groove
- groove ball
- ball bearing
- pin
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Abstract
The utility model discloses a heavy formula universal wheel that can maintain, include: the two sides of the walking part are fixed with eccentric brackets; the bottom of the rotating part is fixedly connected with the eccentric bracket; the walking part is internally provided with a first oil duct in the horizontal direction; a second oil duct in the vertical direction is arranged in the eccentric support; the first oil passage and the second oil passage are both of a cross-shaped structure. The cross-shaped oil ducts are arranged at the walking part and the rotating part simultaneously, and the transverse part of each oil duct is the same as the inner diameter of the corresponding pin shaft, so that lubricating oil can enter the bearing for lubrication; on the other hand, each oil passage has a certain capacity, and lubrication for a long time can be realized.
Description
Technical Field
The utility model relates to an universal wheel technical field, concretely relates to but heavy maintenance formula universal wheel.
Background
The universal wheel refers to a bracket which is arranged on a caster wheel and can horizontally rotate for 360 degrees in dynamic load or static load. The existing universal wheel is only small, cannot bear large load, cannot be maintained and lubricated, and is damaged quickly when being used in a high-humidity high-salt environment.
The prior patent CN208290844U discloses a universal wheel with excellent rotation performance, which includes a connecting disc and a universal wheel assembly, wherein the outer surface of the upper end of the connecting disc is provided with a moving magnet and an oil hole, the moving magnet is movably mounted at one side of the oil hole, the outer side of the upper end of the connecting disc is movably mounted with a spindle, and the outer side of the upper end of the spindle is fixedly mounted with a base; the oil holes of this patent are provided on the connecting disc and only lubricate the spindle. Current patent CN106394120A discloses a building handcart universal wheel structure, including universal spindle nose, connection external member, fixed pipe, fixation nut, screwed joint, oil filler point, notes oil pipe, spring collar, spherical axle, fixed axle, running roller, rubber child and connecting axle, only be equipped with a horizontal oil pipe in spindle nose department in this patent.
In summary, there is a need to design a heavy type maintenance-capable universal wheel to solve the problems of the prior art that the universal wheel is worn greatly and has large impact load in a high-humidity and high-salt environment.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned prior art problem, the utility model provides a heavy maintainable formula universal wheel has satisfied the needs of daily lubricated maintenance, can bear the high load simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heavy duty, serviceable caster comprising:
the two sides of the walking part are fixed with eccentric brackets;
the bottom of the rotating part is fixedly connected with the eccentric bracket;
the walking part is internally provided with a first oil duct in the horizontal direction; a second oil duct in the vertical direction is arranged in the rotary part; the first oil passage and the second oil passage are both of a cross-shaped structure.
In some embodiments of the present invention, the walking part comprises a first pin, a first deep groove ball bearing and a second deep groove ball bearing, wherein the first pin is connected in the middle of the first deep groove ball bearing and the second deep groove ball bearing.
In some embodiments of the present invention, an extension portion is disposed at the top of the first pin, wherein an oil nozzle is disposed at the top end of the first pin; the length of the transverse part of the first oil duct is the same as the inner diameter of the first pin shaft.
In some embodiments of the present invention, the first deep groove ball bearing and the second deep groove ball bearing are sequentially fixed with a rubber bracket and a rubber wheel on the outer side.
In some embodiments of the present invention, the eccentric bracket includes a first eccentric bracket and a second eccentric bracket, the first eccentric bracket and the second eccentric bracket are sleeved in the first pin; wherein the first eccentric bracket is located between the extension and the first deep groove ball bearing; the second eccentric bracket is located between the second deep groove ball bearing and the nut.
In some embodiments of the present invention, the bottom of the first pin and the nut are provided with corresponding pin holes; and a stop pin is inserted in the pin hole and used for further fixing a nut to prevent the walking part from being separated from the eccentric bracket.
In some embodiments of the present invention, a gasket is disposed between the first eccentric support and the first deep groove ball bearing and between the second eccentric support and the second deep groove ball bearing, for fixing the bearing, preventing the occurrence of axial movement and reducing wear of the eccentric support to the bearing.
In some embodiments of the present invention, the rotation portion includes a housing, a cover, and a rotation pin, the bottom of the rotation pin is provided with an extension portion, the extension portion is fixedly connected to the housing, and the cover is fixed to the housing by a bolt.
In some embodiments of the present invention, the length of the transverse portion of the second oil passage is the same as the inner diameter of the swivel pin; and a second oil injection nozzle is arranged at the top end of the rotary pin shaft.
In some embodiments of the present invention, the swivel pin shaft is threaded into the first conical roller bearing and the second conical roller bearing; and a blocking piece is arranged above the first conical roller bearing and is fixed on the rotary pin shaft through a nut.
In some embodiments of the present invention, the rotary pin shaft and the oil seal are disposed between the shells, so as to avoid leakage of the lubricating oil.
The technical scheme of the utility model prior art relatively has following technological effect:
the cross-shaped oil ducts are arranged at the walking part and the rotating part simultaneously, and the transverse part of each oil duct is the same as the inner diameter of the corresponding pin shaft, so that lubricating oil can enter the bearing for lubrication; on the other hand, each oil passage has a certain capacity, and lubrication for a long time can be realized. Because the rotary part adopts the form of a bearing, the rotary part has excellent rotary capability under large impact load.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a heavy maintenance-capable universal wheel.
FIG. 2 is a top view of a heavy duty maintenance-able caster.
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 1.
Fig. 4 is a schematic cross-sectional view taken along line B-B in fig. 2.
Reference numerals: 100-a walking part; 101-a first grease nipple; 102-a first pin; 103-a first oil passage; 104-a first eccentric mount; 105-a first deep groove ball bearing; 106-second deep groove ball bearing; 107-a first gasket; 108-a second gasket; 109-rubber support; 110-a rubber wheel; 111-a second eccentric mount; 112-a first nut; 113-pin holes; 114-an extension; 200-a turn section; 201-sealing cover; 202-a housing; 203-bolt; 204-a rotating pin shaft; 205-a second grease nipple; 206-a second oil passage; 207-second nut; 208-a baffle plate; 209-a first conical roller bearing; 210-a second conical roller bearing; 211-oil seal; 212-an extension; 300-stop pin.
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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1, a heavy maintenance-capable universal wheel includes: a walking part 100 and a turning part 200. Eccentric brackets are fixed on both sides of the walking part 100; the bottom of the revolving part 200 is fixedly connected with the eccentric bracket;
as shown in fig. 3 and 4, a first oil passage 103 in the horizontal direction is provided in the traveling part 100; a second oil passage 206 in the vertical direction is arranged in the revolving part 200; the first oil passage 103 and the second oil passage 206 are both of a cross-type structure.
In some embodiments of the present invention, as shown with reference to fig. 1 and 2, the eccentric bracket includes a first eccentric bracket 104 and a second eccentric bracket 111. Referring to fig. 3, the walking part 100 includes a first pin 102, a first deep groove ball bearing 105 and a second deep groove ball bearing 106, wherein the first pin 102 is inserted between the first deep groove ball bearing 105 and the second deep groove ball bearing 106; the first eccentric bracket 104 and the second eccentric bracket 111 are sleeved in the first pin shaft 102.
An extension part 114 is arranged at the top of the first pin shaft 102, and the first eccentric bracket 104 is positioned between the extension part 114 and the first deep groove ball bearing 105; the second eccentric bracket 111 is located between the second deep groove ball bearing 106 and the first nut 112. The outer side of the bottom of the first pin 102 is provided with a thread matching with a first nut, and the first nut 112 is used for fixing the first deep groove ball bearing 105, the second deep groove ball bearing 106, the first eccentric bracket 104 and the second eccentric bracket 111 on the first pin 102
Referring to fig. 3, a first oil nozzle 101 is arranged at the top end of the first pin shaft 102; the first oil passage 103 is cross-shaped, and the length of the transverse portion thereof is the same as the inner diameter of the first pin 102. Therefore, after the lubricating oil is injected into the first oil passage 103, the first deep groove ball bearing 105 and the second deep groove ball bearing 106 can be lubricated by their lateral portions.
In some embodiments of the present invention, the outer sides of the first deep groove ball bearing 105 and the second deep groove ball bearing 106 are sequentially fixed with a rubber bracket 109 and a rubber wheel 110, so far, a wheel of a universal wheel is formed.
In some embodiments of the present invention, corresponding pin holes are formed in the bottom of the first pin 102 and the first nut 112; the pin hole is inserted with a stop pin 300 for further fixing the first nut 112 and preventing the first eccentric bracket 104 and the second eccentric bracket 111 from falling off.
In some embodiments of the present invention, a first spacer 107 is disposed between the first eccentric bracket 104 and the first deep groove ball bearing 105; a second gasket 108 is arranged between the second eccentric bracket 111 and the second deep groove ball bearing 106, and the first gasket 107 and the second gasket 108 are used for fixing the bearing, preventing axial movement and reducing the abrasion of the eccentric bracket to the bearing.
In some embodiments of the present invention, referring to fig. 4, the revolving portion 200 includes a housing 202, a cover 201 and a revolving pin 204, the bottom of the revolving pin 204 is provided with an extension portion 212, the extension portion 212 is fixedly connected to the housing 202, and the cover 201 is fixed to the housing 202 by a bolt 203.
In some embodiments of the present invention, the illustrated slew bearing 204 has a built-in second oil passage 206 with a transverse portion having the same length as the inner diameter of the slew pin 204; the top end of the rotary pin shaft 204 is provided with a second oil nozzle 205.
In some embodiments of the present invention, the pivot pin 204 is inserted into a first conical roller bearing 209 and a second conical roller bearing 210; a blocking piece 208 is arranged above the first conical roller bearing 209, and the blocking piece 208 is fixed on the rotary pin shaft 204 through a second nut 207.
An oil seal 211 is arranged between the rotary pin shaft 204 and the shell 202, so that lubricating oil is prevented from leaking.
The utility model discloses a theory of operation:
sleeving bent parts of the first eccentric bracket 104 and the second eccentric bracket 111 on two sides of the first deep groove ball bearing 105 and the second deep groove ball bearing 106 respectively, tightening a first nut 112, and fixing the two eccentric brackets on the walking part 100; the vertical portion of the eccentric bracket is fixed to the bottom of the rotation pin 204 of the rotation portion 200. During lubrication maintenance, lubricating oil is poured into the traveling part 100 through the first oil nozzle 101, enters the first oil channel 103, and enters the first deep groove ball bearing 105 and the second deep groove ball bearing 106 through the transverse part lubricating oil of the first oil channel 103; after a proper amount of lubricating oil is injected into the first oil passage 103, the first oil injection nozzle 101 is sealed; longer lubrication times can be achieved. The maintenance of the revolving portion 200 is to pour lubricating oil through the second oil nozzle 205, the lubricating oil enters the second oil passage 206, then enters the first conical roller bearing 209 and the second conical roller bearing 210 through the lubricating oil of the transverse portion thereof for lubrication, and after a proper amount of lubricating oil is poured into the second oil passage 206, the second oil nozzle 205 is sealed; longer lubrication times can be achieved. Since the walking part 100 and the rotating part 200 are simultaneously provided with the cross-shaped oil passages, and the transverse part of each oil passage is the same as the inner diameter of the corresponding pin shaft, lubricating oil can enter the bearing for lubrication.
On the other hand, the oil seal 211 provided in the turn portion 200 can prevent the lubricating oil in the second oil passage 206 from flowing out; the turning part 200 has a tapered roller bearing used in a pair, can bear a large load, and has an excellent turning capability.
When the universal wheel is used, a fixing support with a rectangular outer periphery and a circular inner periphery is required to be welded on the shell 202 of the rotating portion 200, then a U-shaped fixing support is welded at a position where the universal wheel is required to be used, and the two fixing supports are connected through bolts, so that quick replacement can be realized.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A heavy type maintenance type universal wheel is characterized by comprising:
the two sides of the walking part are fixed with eccentric brackets;
the bottom of the rotating part is fixedly connected with the eccentric bracket;
the walking part is internally provided with a first oil duct in the horizontal direction; a second oil duct in the vertical direction is arranged in the rotary part; the first oil passage and the second oil passage are both of a cross-shaped structure.
2. The heavy duty maintenance-able universal wheel according to claim 1, wherein said traveling part comprises a first pin, a first deep groove ball bearing and a second deep groove ball bearing, wherein said first pin is inserted between said first deep groove ball bearing and said second deep groove ball bearing.
3. The heavy maintenance universal wheel according to claim 2, wherein the top of the first pin shaft is provided with an extension part, and the top end of the first pin shaft is provided with an oil nozzle; the length of the transverse part of the first oil duct is the same as the inner diameter of the first pin shaft.
4. The heavy maintenance-type universal wheel as claimed in claim 2, wherein a rubber support and a rubber wheel are sequentially fixed on the outer sides of the first deep groove ball bearing and the second deep groove ball bearing.
5. The heavy type maintenance universal wheel according to claim 3, wherein the eccentric bracket comprises a first eccentric bracket and a second eccentric bracket, and the first eccentric bracket and the second eccentric bracket are sleeved in the first pin shaft; wherein the first eccentric bracket is located between the extension and the first deep groove ball bearing; the second eccentric bracket is located between the second deep groove ball bearing and the nut.
6. The heavy maintenance-able universal wheel according to claim 5, wherein corresponding pin holes are formed in the bottom of the first pin shaft and the nut; a stop pin is inserted into the pin hole.
7. The heavy duty careable universal wheel of claim 5, characterized in that a spacer is provided between the first eccentric bracket and the first deep groove ball bearing and between the second eccentric bracket and the second deep groove ball bearing.
8. The heavy maintenance-capable universal wheel according to claim 1, wherein the rotating part comprises a housing, a cover and a rotating pin, the rotating pin is provided with an extension part at the bottom, the extension part is fixedly connected with the housing, and the cover is fixed with the housing through a bolt.
9. The heavy duty careable universal wheel of claim 8, wherein the length of the transverse portion of the second oil passage is the same as the inner diameter of the swivel pin; a second oil injection nozzle is arranged at the top end of the rotary pin shaft; an oil seal is arranged between the rotary pin shaft and the shell.
10. The heavy duty careable universal wheel of claim 8, wherein the pivot pin shaft is journalled in a first conical roller bearing and a second conical roller bearing; and a blocking piece is arranged above the first conical roller bearing and is fixed on the rotary pin shaft through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738119.6U CN212979749U (en) | 2020-08-19 | 2020-08-19 | Heavy type maintainable universal wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738119.6U CN212979749U (en) | 2020-08-19 | 2020-08-19 | Heavy type maintainable universal wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212979749U true CN212979749U (en) | 2021-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021738119.6U Active CN212979749U (en) | 2020-08-19 | 2020-08-19 | Heavy type maintainable universal wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212979749U (en) |
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2020
- 2020-08-19 CN CN202021738119.6U patent/CN212979749U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220217 Address after: No.12 Jingba Road, Huangdao District, Qingdao City, Shandong Province Patentee after: QINGDAO PORT INTERNATIONAL Co.,Ltd. Patentee after: Qingdao Port Equipment Manufacturing Co., Ltd Address before: No.12 Jingba Road, Huangdao District, Qingdao City, Shandong Province Patentee before: QINGDAO PORT INTERNATIONAL Co.,Ltd. Patentee before: Qingdao Port International Co., Ltd. port machinery branch |
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| TR01 | Transfer of patent right |