Universal joint with oil injection structure
By designing a universal head with an oil spray structure, direct grease injection is achieved, solving the problem that grease is difficult to reach the inside of the universal head, reducing grease waste, and improving lubrication efficiency.
Patent Information
- Application Number
- CN202520009288.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-03
AI Technical Summary
When applying grease to existing universal joints, the grease is difficult to reach the inside of the joint directly, and the application area is large, resulting in waste.
Design a universal head with an oil spray structure to directly add grease through the oil filling groove and oil filling hole. The grease is then delivered to various components through the through hole to achieve lubrication of multiple components.
The grease is added directly into the universal joint, reducing grease waste and improving lubrication efficiency.
Smart Images
Figure CN223635897U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hardware fitting technical field, concretely is a universal joint with oil injection structure. BACKGROUND
[0002] Universal joint, also known as universal joint or universal joint, is a kind of mechanical connector device capable of realizing multidirectional rotation.Universal joint is composed of multiple spherical or cylindrical parts, these parts rotate in a closed shell, so that transmission shaft can rotate in each direction.Its design allows multidirectional rotation within a certain range, thereby meeting the connection needs under various complex working conditions.
[0003] Since universal joint needs to bear large friction and inertia force during working process, these forces can cause wear of internal parts, to prolong the service life of universal joint, it is necessary to apply lubricating grease to universal joint for lubrication, to reduce the friction coefficient between parts, thereby reducing wear and friction.
[0004] The existing universal joint is directly applied on the surface of universal joint when applying lubricating grease, lubricating grease is difficult to directly act on the inside of universal joint, and lubricating grease needs to be applied to each part, which is more complicated and more wasteful of lubricating grease. INVENTION CONTENTS
[0005] The technical problem to be solved by the utility model is that the existing universal joint is difficult to directly act on the inside of universal joint when applying lubricating grease, and the parts of lubricating grease are more and more wasteful.
[0006] In order to solve the above problems, the technical scheme of the utility model is as follows: a universal joint with oil injection structure, including cylinder, the upper part of the cylinder is provided with an upper mounting groove, a steel ball is rotatably installed in the upper mounting groove, a threaded column is connected to the top of the steel ball through a vertical rod, a clamping groove matched with the vertical rod is formed in the upper part of the side surface of the cylinder, an oil injection hole penetrating the bottom surface of the steel ball is formed in the inside of the steel ball, an oil filling groove is formed in the side surface of the steel ball and communicated with the oil injection hole, a lower mounting groove is formed in the lower part of the cylinder, and a connecting piece is rotatably installed in the lower mounting groove.
[0007] Further, a through hole is formed in the inside of the cylinder and communicated with the upper mounting groove and the lower mounting groove.
[0008] Further, the diameter of the through hole is 1 / 4-1 / 2 of the diameter of the oil injection hole.
[0009] Further, the connecting piece includes a circular plate, a connecting column is fixedly connected to the bottom of the circular plate, a fixed column is fixedly connected to the bottom of the connecting column, and a jack is formed in the bottom of the fixed column for connecting equipment.
[0010] Further, a positioning hole penetrating the jack is formed in the lower part of the side surface of the fixed column.
[0011] The utility model discloses compared with prior art has the advantages of: the utility model discloses through the oil groove to the steel ball is filled with the lubricating grease, and the lubricating grease is transported to the upper installation groove in the oil hole, realizes the lubrication between the steel ball and the column, and the lubricating grease is transported to the lower installation groove in the through -hole, realizes the lubrication between the connecting piece and the column, and through filling lubricating grease once can realize the lubrication of multiple components, and the lubricating grease is filled directly to the universal joint inside, effectively reduces the waste of lubricating grease. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the three -dimensional view of the utility model Figure 1 .
[0013] Figure 2 It is the three -dimensional view of the utility model Figure 2 .
[0014] Figure 3 It is the sectional view of the utility model.
[0015] As shown in the figure: 1, column, 1.1, upper installation groove, 1.2, lower installation groove, 1.3, through -hole, 1.4, card slot, 2, steel ball, 2.1, oil hole, 2.2, oil groove, 3, vertical rod, 4, threaded column, 5, round plate, 6, connecting column, 7, fixed column, 7.1, jack, 7.2, positioning hole. DETAILED DESCRIPTION
[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range of protection of the utility model.
[0017] As Figures 1 to 3 Shown, a universal joint with oil injection structure, including column 1, the upper portion of the column 1 is set up with upper installation groove 1.1, the steel ball 2 is rotatably installed in the upper installation groove 1.1, the threaded column 4 is connected to the vertical rod 3 on the top of the steel ball 2, the column 1 upper portion is set up with the card slot 1.4 matched with vertical rod 3 on the side, the oil hole 2.1 is set up in the steel ball 2 and passes through the bottom surface of steel ball 2, and the oil groove 2.2 is set up in the side of steel ball 2 and passes through the oil hole 2.1.
[0018] The threaded column 4 is convenient to connect the equipment which needs to be installed the universal joint, the threaded column 4 can drive the steel ball 2 to rotate through the vertical rod 3, the angle can be adjusted, when the vertical rod 3 is clamped in the clamping groove 1.4, the angle between the vertical rod 3 and the column body 1 is fixed, the angle between the equipment and the column body 1 is also fixed, through the setting of the oiling groove 2.2 and the oil injection hole 2.1, when the lubricating grease is filled, the lubricating grease can be conveyed to the inner bottom of the upper mounting groove 1.1 through the oil injection hole 2.1, the waste of the lubricating grease is effectively reduced.
[0019] The lower part of the column body 1 is provided with a lower mounting groove 1.2, a connecting piece is rotatably installed in the lower mounting groove 1.2, the inside of the column body 1 is provided with a through hole 1.3 which is communicated with the upper mounting groove 1.1 and the lower mounting groove 1.2, the diameter of the through hole 1.3 is 1 / 4 of the diameter of the oil injection hole 2.1, the connecting piece comprises a circular plate 5, the bottom of the circular plate 5 is fixedly connected with a connecting column 6, the bottom of the connecting column 6 is fixedly connected with a fixed column 7, the bottom of the fixed column 7 is provided with a jack 7.1 which is used for connecting equipment, the lower part of the side surface of the fixed column 7 is provided with a positioning hole 7.2 which penetrates the jack 7.1.
[0020] The connecting part of another equipment is inserted into the jack 7.1, so that the connecting hole on the connecting part is coincided with the center line of the positioning hole 7.2, a positioning pin is installed in the positioning hole 7.2, and the column body 1 is connected with another equipment. The circular plate 5 drives the fixed column 7 to rotate through the connecting column 6, and the angle of another equipment can be adjusted. The lubricating grease in the inside of the upper mounting groove 1.1 is conveyed into the lower mounting groove 1.2 under the action of gravity, and the lubrication between the connecting piece and the column body 1 is realized.
[0021] In specific use, the lubricating grease is filled into the steel ball 2 through the oiling groove 2.2, the lubricating grease is conveyed into the upper mounting groove 1.1 through the oil injection hole 2.1, the lubrication between the steel ball 2 and the column body 1 is realized, the lubricating grease is conveyed into the lower mounting groove 1.2 through the through hole 1.3, the lubrication between the connecting piece and the column body 1 is realized, and the lubrication of multiple components can be realized through one-time filling of the lubricating grease, and the waste of the lubricating grease is effectively reduced.
[0022] The non-disclosed parts in the utility model are prior art, and the specific structure and working principle will not be repeated.
[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.
[0025] The above description of the present application and its embodiments has been described, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the present application.
Claims
1. A universal joint with an oil injection structure, comprising a column body (1), an upper mounting groove (1.1) is formed in the upper part of the column body (1), a steel ball (2) is rotatably mounted in the upper mounting groove (1.1), and a threaded column (4) is connected to the top of the steel ball (2) through a vertical rod (3), characterized in that: The column (1) upper side is provided with a clamping groove (1.4) matched with the vertical rod (3), the steel ball (2) is internally provided with an oil injection hole (2.1) penetrating the bottom surface of the steel ball (2), the steel ball (2) is provided with an oil injection groove (2.2) penetrating the oil injection hole (2.1) on the side surface, the column (1) is provided with a lower mounting groove (1.2), and the lower mounting groove (1.2) is internally rotatably provided with a connecting piece.
2. The cardan joint with oil injection structure according to claim 1, characterized in that: The column (1) is internally provided with a through hole (1.3) communicating the upper mounting groove (1.1) and the lower mounting groove (1.2).
3. The cardan joint with oil injection according to claim 2, characterized in that: The diameter of the through hole (1.3) is 1 / 4-1 / 2 of the diameter of the oil injection hole (2.1).
4. The universal joint head with an oil injection structure according to claim 1, characterized in that: The connecting piece comprises a circular plate (5), the bottom of the circular plate (5) is fixedly connected with a connecting column (6), the bottom of the connecting column (6) is fixedly connected with a fixing column (7), and the bottom of the fixing column (7) is provided with a jack (7.1) for connecting equipment.
5. The cardan joint with oil injection according to claim 4, characterized in that: The fixing column (7) is provided with a positioning hole (7.2) penetrating the jack (7.1) on the lower side.