Lubricating device of pushing rod
By designing an oil guide groove and an oil inlet hole on the inner wall of the push rod bushing, the problems of lubricating oil waste and pollution are solved, achieving efficient utilization of lubricating oil and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, lubricating oil is added from the outside of the push rod, which can easily cause it to flow, resulting in waste and environmental pollution.
An oil guide groove is provided on the inner wall of the push rod bushing. Lubricating oil is introduced into the oil guide groove through the oil inlet hole. The lubricating oil is stored and lubricated between the inner wall of the push rod bushing and the push rod, preventing the lubricating oil from slipping directly.
It reduces lubricant waste and pollution, improves lubrication effect, and avoids environmental pollution caused by lubricant flowing along the outer wall of the push rod.
Smart Images
Figure CN224058665U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of push rod technology, and specifically relates to a lubrication device for a push rod. Background Technology
[0002] When die-casting products, the push rod needs to be lubricated to ensure its service life. The existing method of lubricating is to apply lubricating oil to the outside of the push rod.
[0003] However, after the lubricating oil is added from the outside of the push rod, it flows freely along the push rod and the outer wall of the component due to gravity and the movement of the push rod. Therefore, in order to ensure the lubrication effect, the amount of lubricating oil added from the outside of the push rod is much more than the amount of lubricating oil used by the push rod itself, which obviously leads to the waste of lubricating oil.
[0004] In addition, because the lubricating oil will flow freely along the push rod and the outer wall of the parts, it will drip down along the gaps and corners of the die-casting machine housing, contaminating the parts along the way. A large amount of dripping lubricating oil will also accumulate on the ground around the die-casting machine, forming oil stains and oil films. This not only makes the ground slippery and prone to causing people to slip and fall, increasing safety risks, but also makes it difficult to clean after being contaminated with impurities, consuming cleaning agents and manpower, and may also pollute the drainage system. Utility Model Content
[0005] This utility model provides a lubrication device for a push rod, which solves the problems of lubricant waste and environmental pollution caused by adding lubricating oil to the outside of the push rod in the prior art.
[0006] To solve the above-mentioned technical problems, this utility model provides a lubrication device for a push rod, including a push rod bushing. An oil guide groove is provided on the inner wall of the push rod bushing. There is a preset distance between the groove opening of the oil guide groove and the port of the push rod bushing. An oil inlet hole is provided on the push rod bushing. The outlet of the oil inlet hole overlaps with the bottom of the oil guide groove.
[0007] Optionally, the oil guide groove is arranged around the inner wall of the push rod bushing.
[0008] Optionally, multiple oil guide grooves are provided along the axial direction of the push rod bushing.
[0009] Optionally, three oil guide grooves are provided along the axial direction of the push rod bushing.
[0010] Optionally, the outlet of the oil inlet spans between the first and second oil guide grooves, which are furthest apart, and the outlet of the oil inlet overlaps with the bottom of both the first and second oil guide grooves.
[0011] Optionally, the length of the overlapping portion of the outlet of the oil inlet and the bottom of the first oil guide groove in the axial direction of the push rod bushing is less than the length of the bottom of the first oil guide groove in the axial direction of the push rod bushing.
[0012] Optionally, the push rod bushing has a through hole, and the through hole and the oil guide groove are located at different positions on the push rod bushing.
[0013] Optionally, the length of the push rod in the axial direction of the push rod bushing is less than the length of the push rod bushing in the axial direction of the push rod bushing.
[0014] Optionally, the push rod bushing is cylindrical.
[0015] Optionally, the lubrication device for the push rod also includes a lubricating oil pipe, one end of which is disposed in the oil inlet hole, so that the oil inlet channel formed inside the lubricating oil pipe communicates with the oil inlet hole.
[0016] Compared with the prior art, the lubrication device for the push rod provided by this utility model has the following beneficial effects:
[0017] Because the oil guide groove is located on the inner wall of the push rod bushing, when oil is injected into the oil guide groove, most of the lubricating oil remains on the inner wall of the push rod bushing and between the push rod. Compared to injecting oil directly from the outside of the push rod, this obviously avoids the problem of lubricating oil sliding directly off the push rod under the influence of gravity, thus preventing lubricating oil waste and environmental pollution. Furthermore, because the oil guide groove is groove-shaped, the lubricating oil is stored in the groove when injected. Only when the push rod passes through the groove does the lubricating oil in the groove adhere to the push rod, providing lubrication. It is understandable that, compared to not setting an oil guide groove on the inner wall of the push rod bushing, but only opening an oil inlet hole on the push rod bushing, this can prevent the lubricating oil entering through the oil inlet hole from flowing between the push rod bushing and the push rod, and flowing outside the push rod bushing. Therefore, setting an oil guide groove on the inner wall of the push rod bushing can obviously further avoid the waste of lubricating oil. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, not all embodiments. For those skilled in the art, other drawings obtained from these drawings without creative effort are all within the protection scope of this utility model.
[0019] Figures 1-3This is a three-dimensional structural diagram of a lubrication device for a push rod provided in an embodiment of this utility model, in different directions;
[0020] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;
[0021] Figure 5 This is a diagram showing the lubrication device and the push rod of the push rod provided in this embodiment of the utility model.
[0022] Drawing number explanation: 100-Push rod bushing, 110-Oil guide groove, 111-First oil guide groove, 112-Second oil guide groove, 120-Oil inlet hole, 130-Through hole, 200-Push rod, 300-Lubricating oil pipe. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0024] To make the description of this disclosure more detailed and complete, illustrative descriptions of the implementation methods and specific embodiments of this utility model are provided below; however, this is not the only form of implementing or applying the specific embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.
[0026] In addition, in the description of the embodiments of this utility model, "multiple" refers to two or more, and other quantifiers are similarly understood. The preferred embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model. Furthermore, in the absence of conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other.
[0027] like Figures 1-3 The image shown is a perspective view of a lubrication device for a push rod according to an embodiment of the present invention, viewed from different directions. The lubrication device for a push rod provided by the present invention includes a push rod bushing 100, as shown... Figure 4 As shown Figure 3 In a cross-sectional view along the AA direction, an oil guide groove 110 is provided on the inner wall of the push rod bushing 100. There is a preset distance between the groove opening of the oil guide groove 110 and the port of the push rod bushing 100. An oil inlet hole 120 is provided on the push rod bushing 100. The outlet of the oil inlet hole 120 overlaps with the bottom of the oil guide groove 110.
[0028] Specifically, such as Figure 5 The diagram shows the overall fit between the lubrication device and the push rod 200 provided in this embodiment of the present invention. The push rod sleeve 100 in this embodiment can be any structure capable of fitting the push rod 200 and moving relative to it. For example, if the push rod 200 is cylindrical, the push rod sleeve 100 can be a hollow cylinder, and the diameter of the hollow portion of the push rod sleeve 100 matches the diameter of the push rod 200. Since the push rod sleeve 100 fits and fits the push rod 200, it has a hollow portion, and the side of the push rod sleeve 100 closest to the hollow portion is the inner wall of the push rod sleeve 100.
[0029] An oil guide groove 110 can be formed on the inner wall of the push rod bushing 100. The oil guide groove 110 can be located at any position on the inner wall of the push rod bushing 100. Optionally, in order to ensure that the push rod 200 can be lubricated as a whole, any part of the push rod 200 can coincide with the oil guide groove 110 when it moves within the push rod bushing 100 to push material. For this purpose, the oil guide groove 110 can be set at the port on the inner wall of the push rod bushing 100, and this port is the first port that the push rod 200 passes through during its movement. The groove area and groove depth of the oil guide groove 110 can be set according to the specific needs of the application, and are not limited in detail here. In addition, in order to ensure that the lubricating oil in the oil guide groove 110 does not flow out of the oil guide groove 110, the oil guide groove 110 can be set to not be connected to the outside. That is, the groove opening of the oil guide groove 110 and the port of the push rod bushing 100 can be set at a preset distance. The preset distance can be set according to the specific needs of the application, and is not limited in detail here.
[0030] Furthermore, in order to ensure that lubricating oil can flow in the oil guide groove 110 and to ensure the lubrication of the push rod 200, an oil inlet hole 120 can be opened on the push rod bushing 100. The inlet of the oil inlet hole 120 is used to enter lubricating oil, and the outlet of the oil inlet hole 120 is used to output lubricating oil into the oil guide groove 110. For this purpose, the outlet of the oil inlet hole 120 can overlap with the bottom of the oil guide groove 110.
[0031] Understandably, since the oil guide groove 110 is located on the inner wall of the push rod bushing 100, when oil is injected into the oil guide groove 110, most of the lubricating oil is concentrated on the inner wall of the push rod bushing 100 and between the push rod 200. Compared to injecting oil directly from the outside of the push rod 200, this obviously avoids more lubricating oil sliding directly off the push rod 200 under the influence of gravity, thus preventing lubricating oil waste and environmental pollution. Furthermore, because the oil guide groove 110 is groove-shaped, when lubricating oil is injected into it, it is stored within the groove. Only when the push rod 200 passes through the oil guide groove 110 does the lubricating oil in the groove adhere to the push rod 200, thus providing lubrication. It is understandable that, compared to not providing an oil guide groove 110 on the inner wall of the push rod bushing 100, but only providing an oil inlet hole 120 on the push rod bushing 100, this can prevent the lubricating oil entering through the oil inlet hole 120 from flowing between the push rod bushing 100 and the push rod 200 and flowing outside the push rod bushing 100. Therefore, providing an oil guide groove 110 on the inner wall of the push rod bushing 100 can obviously further prevent the waste of lubricating oil.
[0032] Optional, such as Figures 1-4 As shown, the oil guide groove 110 can be arranged around the inner wall of the push rod bushing 100. In this way, when the push rod 200 passes through the oil guide groove 110, the lubricating oil in the oil guide groove 110 can lubricate any part of the push rod 200 in the circumferential direction. After the push rod 200 moves along the axial direction of the push rod bushing 100 by the axial length of the push rod 200, all positions of the push rod 200 in the axial direction and all positions in the circumferential direction can be lubricated, that is, all parts of the push rod 200 can be lubricated.
[0033] Optional, such as Figure 4As shown, multiple oil guide grooves 110 can be provided along the axial direction of the push rod bushing 100. Compared to providing only one oil guide groove 110 along the axial direction of the push rod bushing 100, this avoids the problem that one oil guide groove 110 cannot adequately lubricate the push rod 200 when the push rod 200 moves too fast. Further optionally, multiple oil guide grooves 110 can be arranged adjacent to each other, meaning the axial distance between each oil guide groove 110 can be less than a preset threshold value. This preset threshold value can be set to a small value. Thus, when the push rod 200 passes through the oil guide grooves 110 quickly, even if one oil guide groove 110 cannot adequately lubricate the push rod 200 due to the excessive speed of the push rod 200, the other oil guide grooves 110 can still provide supplementary lubrication, thereby achieving adequate lubrication of the push rod 200. In addition, although the opening of the oil guide groove 110 can be made larger to accommodate enough lubricating oil, thereby achieving sufficient lubrication of the push rod 200 when it quickly passes through the oil guide groove 110, making the opening of the oil guide groove 110 too large will cause the lubricating oil in the oil guide groove 110 to flow out between the push rod 200 and the push rod bushing 100, resulting in waste of lubricating oil. However, by setting multiple oil guide grooves 110 in the axial direction of the push rod bushing 100, the opening of each oil guide groove 110 can be set to be smaller, thereby ensuring sufficient lubrication of the push rod 200 while avoiding waste of lubricating oil.
[0034] Optional, such as Figure 4 As shown, three oil guide grooves 110 can be provided along the axial direction of the push rod bushing 100. It is understandable that if too many oil guide grooves 110 are provided, the cost of setting up the oil guide grooves 110 will be too high. Moreover, while increasing the cost, if the number of oil guide grooves 110 exceeds a certain value, it will not further improve the adequacy of lubrication of the push rod 200. Therefore, setting the number of oil guide grooves 110 to three can ensure adequate lubrication of the push rod 200 while ensuring that the cost of setting up the oil guide grooves 110 is not too high.
[0035] Optional, such as Figure 4As shown, the outlet of the oil inlet 120 can span between the farthest first oil guide groove 111 and the second oil guide groove 112. This ensures that all other oil guide grooves 110 between the first and second oil guide grooves 111 and 112 are connected to the oil inlet 120, allowing lubricating oil to flow into all oil guide grooves 110 between the first and second oil guide grooves 111 and 112. The outlet of the oil inlet 120 can overlap with the bottom of both the first and second oil guide grooves 111 and 112. This ensures that the first and second oil guide grooves 111 and 112 are also connected to the oil inlet 120, allowing lubricating oil to enter the first and second oil guide grooves 111 and 112. Ultimately, the lubricating oil in the oil inlet 120 can enter all the oil guide grooves 110.
[0036] Optional, such as Figure 4 As shown, the length of the overlapping portion of the outlet of the oil inlet 120 and the bottom of the first oil guide groove 111 in the axial direction of the push rod bushing 100 can be less than the length of the bottom of the first oil guide groove 111 in the axial direction of the push rod bushing 100.
[0037] Understandably, the overlap between the outlet of the oil inlet hole 120 and the bottom of the first oil guide groove 111 ensures that the oil inlet hole 120 communicates with the first oil guide groove 111, thus allowing lubricating oil to enter the first oil guide groove 111. The shorter the length of the overlap between the outlet of the oil inlet hole 120 and the bottom of the first oil guide groove 111 along the axial direction of the push rod bushing 100, and the smaller the area of the overlap between the outlet of the oil inlet hole 120 and the bottom of the first oil guide groove 111, the smaller the diameter of the oil inlet hole 120 can be reduced while ensuring that all oil guide grooves 110 can receive oil. This reduces the cost of opening the oil inlet hole 120 and avoids the problem of impurities easily entering the oil guide groove 110 through the oil inlet hole 120 if it is too large. Optionally, to ensure the diameter of the oil inlet 120 is small enough, the overlap between the bottom of the first oil guide groove 111 and the outlet of the oil inlet 120 can be minimized, as long as the first oil guide groove 111 and the oil inlet 120 are connected. Similarly, when setting the length of the overlap between the bottom of the second oil guide groove 112 and the outlet of the oil inlet 120, the length of the overlap between the bottom of the first oil guide groove 111 and the outlet of the oil inlet 120 can be referenced.
[0038] Optional, such as Figure 1 and Figure 5As shown, a through hole 130 can be provided on the push rod bushing 100 to ensure that the air pressure inside the push rod bushing 100 is not too high when the push rod 200 moves relative to the push rod bushing 100, thus preventing the push rod bushing 100 from exploding due to excessive air pressure caused by its sealed interior. Furthermore, the through hole 130 and the oil guide groove 110 are located at different positions on the push rod bushing 100, preventing lubricating oil in the oil guide groove 110 from leaking out through the through hole 130. Specifically, the size of the through hole 130 can be set according to the specific needs of the application, and is not limited in detail here.
[0039] Optionally, the length of the push rod 200 in the axial direction of the push rod bushing 100 can be less than the length of the push rod bushing 100 in the axial direction of the push rod bushing 100.
[0040] Understandably, since the oil guide groove 110 is located on the inner wall of the push rod bushing 100, the axial length of the push rod 200 in the push rod bushing 100 can be less than the axial length of the push rod bushing 100. This ensures that all parts of the push rod 200 in the axial direction of the push rod bushing 100 can pass through the oil guide groove 110 during movement, thus achieving sufficient lubrication. Optionally, to ensure sufficient lubrication while reducing the material used in the push rod bushing 100, the axial length of the push rod 200 in the push rod bushing 100 can be matched with the axial length of the push rod bushing 100.
[0041] Optional, such as Figures 1-5 As shown, the push rod bushing 100 can be cylindrical. It is understandable that if the push rod bushing 100 is cylindrical, the oil guide groove 110 can also be annular. Obviously, creating an annular oil guide groove 110 is easier than other shapes. Furthermore, if the push rod bushing 100 is cubical, the cube shape would create sharp edges, causing oil to accumulate in the oil guide groove 110 at the edges. However, if the oil guide groove 110 is annular, oil will not accumulate, allowing the lubricating oil to adhere to the push rod 200.
[0042] Optional, such as Figure 5 As shown, the lubrication device may also include a lubricating oil pipe 300, one end of which may be disposed in the oil inlet hole 120 so that the oil inlet channel formed inside the lubricating oil pipe 300 communicates with the oil inlet hole 120.
[0043] Understandably, the lubricating oil pipe 300 can be used to introduce lubricating oil into the oil inlet 120, and using the lubricating oil pipe 300 can prevent lubricating oil from spilling out compared to pouring oil directly into the oil inlet 120. In addition, to ensure that the lubricating oil does not spill out, the diameter of the lubricating oil pipe 300 can be adapted to the oil inlet 120.
[0044] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the structure and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
[0045] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A lubricating device for a pusher rod, characterized in that The pusher rod sleeve has an inner wall with an oil guide groove, the distance between the groove opening of the oil guide groove and the port of the pusher rod sleeve is preset, an oil inlet hole is formed on the pusher rod sleeve, and the outlet of the oil inlet hole overlaps with the groove bottom of the oil guide groove; The oil guide groove is arranged around the inner wall of the pusher rod sleeve; The oil guide groove is arranged along the axial direction of the pusher rod sleeve; The oil guide groove is arranged along the axial direction of the pusher rod sleeve; The outlet of the oil inlet hole is across the first and second oil guide grooves with the farthest distance, and the outlet of the oil inlet hole overlaps with the groove bottom of the first and second oil guide grooves.
2. The lubricating device of a pusher rod according to claim 1, characterized in that, The length of the overlapping part between the outlet of the oil inlet hole and the groove bottom of the first oil guide groove in the axial direction of the pusher rod sleeve is less than the length of the groove bottom of the first oil guide groove in the axial direction of the pusher rod sleeve.
3. The lubricating device of a pusher rod according to claim 1, characterized in that, A through hole is formed on the pusher rod sleeve, and the through hole and the oil guide groove are located at different positions on the pusher rod sleeve.
4. The lubricating device of a pusher rod according to claim 1, characterized in that, The length of the pusher rod in the axial direction of the pusher rod sleeve is less than the length of the pusher rod sleeve in the axial direction of the pusher rod sleeve.
5. The lubricating device of a pusher rod according to claim 1, wherein The pusher rod sleeve is cylindrical.
6. The lubricating device of a pusher rod according to claim 1, wherein A lubricating oil pipe is arranged in the oil inlet hole, so that the oil inlet channel formed in the lubricating oil pipe is connected with the oil inlet hole.