Copper bush of die-casting machine
By setting equally spaced oil inlets and oil troughs on the copper sleeve of the die-casting machine, combined with an oil pool structure, the problem of lubricating oil leakage was solved, achieving effective utilization of lubricating oil and stable operation of the equipment.
Patent Information
- Application Number
- CN202520612942.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In existing die-casting machines, lubricating oil tends to seep out from gaps during the oiling process, leading to oil waste and increased operating costs.
Multiple oil inlets are set on the copper body at equal intervals along the circumference, and oil grooves and transverse grooves are set on the inner wall. Combined with the oil pool structure, a continuous oil film is formed to prevent lubricating oil from seeping out.
It effectively reduces lubricant leakage and waste, ensures lubrication uniformity and sealing performance, reduces friction and noise, and improves equipment stability and service life.
Smart Images
Figure CN223726045U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of die casting machines, in particular to a die casting machine copper bushing. BACKGROUND
[0002] The main function of the die casting machine copper bushing is to reduce friction and wear, protect the mold and the normal operation of mechanical parts. The existing copper bushing is easy to seep out lubricating oil from the gap during oiling process, which will cause waste of oil and increase the cost of use.
[0003] Therefore, it is necessary to improve the existing die casting machine copper bushing. CONTENT OF THE INVENTION
[0004] The present application aims to provide a copper bushing which can solve at least one of the defects in the background art.
[0005] To achieve the above at least one purpose, the technical scheme adopted by the present application is: a die casting machine copper bushing, comprising a copper bushing main body; an oil groove and a plurality of oil inlets are arranged on the outer side wall of the copper bushing main body; a plurality of oil inlets penetrate the local part of the oil groove and are arranged along the circumferential direction of the copper bushing main body.
[0006] Preferably, a plurality of oil inlets are arranged at equal intervals along the circumferential direction of the copper bushing main body.
[0007] Preferably, the interval angle between adjacent oil inlets is 15°-20°.
[0008] Preferably, the number of oil inlets is three; three oil inlets are arranged at equal intervals along the circumferential direction of the copper bushing main body.
[0009] Preferably, along the axial direction of the copper bushing main body, a plurality of transverse grooves are arranged on the inner wall of the copper bushing main body; the transverse grooves and the oil groove are adapted to communicate through the oil inlets.
[0010] Preferably, the center of the transverse groove is coaxial with the axis of the oil inlet.
[0011] Preferably, along the axial direction of the copper bushing main body, the length of the transverse groove at both ends is 90%-95% of the length of the copper bushing main body at both ends.
[0012] Preferably, the inner wall of the copper bushing main body is provided with an oil pool at one end axially extending relative to the oil inlet.
[0013] Preferably, the two ends of the oil pool are spaced apart from the two ends of the copper bushing main body.
[0014] Compared with the prior art, the present application has the following advantages:
[0015] Compared with the existing die-casting machine copper, the application is concentrated by setting the oil inlet to avoid the waste of lubricating oil seepage; the oil pool is further arranged on the copper body, and part of the lubricating oil flowing down in the copper will be stored in the oil pool, and the oil in the oil pool will be brought above the oil pool during the operation of the machine, and the upper and lower sides are lubricated at the same time. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is an overall structure schematic diagram of prior art of the utility model
[0017] Figure 2 It is an overall structure schematic diagram of the utility model after improvement.
[0018] Figure 3 It is a cross-sectional structure schematic diagram of the utility model.
[0019] Figure 4 It is a structure schematic diagram of the horizontal groove in the utility model.
[0020] In the drawing: copper body 1, oil groove 2, oil inlet 3, horizontal groove 4, oil pool 5. DETAILED DESCRIPTION
[0021] In the following, the application will be further described in combination with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.
[0022] In the description of the application, it should be noted that for orientation words, such as terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship shown in the drawing, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the application.
[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.
[0024] The terms "comprise", "comprising", "have", "having", "include", "including", "contain", "containing", "provide", "providing", "offer", "offering", "specify", "specifying", "preserve", "preserving" and their conjugates, as used herein, are intended to be open-ended transitional phrases, terms, or words that do not preclude additional steps, structures, or elements.
[0025] One of the preferred embodiments of the present application is shown in Figure 2 and Figure 3 A die-casting machine copper sleeve includes a copper sleeve body 1; an oil groove 2 and a plurality of oil inlets 3 are arranged on the outer wall of the copper sleeve body 1; the plurality of oil inlets 3 penetrate the local oil groove 2 and are arranged along the circumferential direction of the copper sleeve body 1.
[0026] It should be known that in the prior art, the structure of the copper sleeve body 1 is provided with an oil inlet 3 at the top, which is opposite to the oil port of the distributor. During the oiling process, after the lubricating oil fills the oil inlet 3 at the top and the corresponding horizontal groove 4, the lubricating oil will flow from the oil groove 2 outside the copper sleeve body 1 to the remaining oil inlets 3. In this process, the lubricating oil is easy to seep out from the gap, causing waste of lubricating oil. After the lubricating oil flows to the bottom of the copper sleeve body 1 due to gravity, it cannot be stored and seeps out from the gap, also causing waste of lubricating oil.
[0027] Therefore, the advantage of the present scheme over the traditional scheme is that the present scheme avoids the waste of lubricating oil by concentrating the arrangement of the oil inlets 3; the copper sleeve body 1 is also provided with an oil pool 5, and a part of the lubricating oil flowing down the inner wall of the copper sleeve body 1 will be stored in the oil pool 5. During the operation of the machine, the oil in the oil pool 5 will be brought above the oil pool 5 as the copper sleeve body 1 rotates with the edge, forming simultaneous lubrication above and below.
[0028] As for the distribution of the oil inlets 3 on the copper sleeve body 1, if the plurality of oil inlets 3 are not arranged at equal intervals along the circumferential direction of the copper sleeve body 1, the following problems may occur:
[0029] 1. Uneven lubrication, including local friction intensification and discontinuous oil film; the reason for local friction intensification is that uneven distribution of oil quantity leads to insufficient lubrication in some areas of the copper sleeve body 1, increased friction, accelerated wear of parts, and even causes overheating or ablation. The reason for discontinuous oil film is that uneven thickness of the oil film may reduce the carrying capacity of the copper sleeve body 1, leading to direct contact of metals, increasing the risk of scratches or pitting.
[0030] 2. Imbalance of pressure distribution, because uneven lubricating oil pressure may cause local high-pressure or low-pressure areas in the copper sleeve body 1, affecting the sealing performance, causing leakage or oil pressure fluctuation, and reducing stability.
[0031] Thirdly, the vibration and noise increase, because the periodic change of friction force of the copper holder 1 may excite mechanical vibration, produce abnormal noise, and affect the stable operation and service life of the equipment.
[0032] Therefore, in the embodiment, as shown in Figure 2 and Figure 3 , a plurality of oil inlets 3 need to be arranged equidistantly along the circumferential direction of the copper holder 1.
[0033] In the embodiment, as shown in Figure 2 and Figure 3 , the number of oil inlets 3 is three; the three oil inlets 3 are arranged equidistantly along the circumferential direction of the copper holder 1.
[0034] In the prior art, as shown in Figure 1 , the three oil inlets 3 are arranged equidistantly by 120° along the circumferential direction of the copper holder 1, which is equivalent to that the three oil inlets 3 are dispersedly arranged on the outer side wall of the copper holder 1. In the embodiment, as shown in Figure 2 , the three oil inlets 3 are also arranged equidistantly along the circumferential direction of the copper holder 1, but the difference is that the three oil inlets 3 in the embodiment are centrally arranged on the outer side wall of the copper holder 1.
[0035] In order to facilitate the understanding of the difference between the dispersed arrangement and the central arrangement of the oil inlets 3 on the outer side wall of the copper holder 1, the structure and working process of the copper holder 1 in the prior art are described in detail below.
[0036] Structure description: The outer side wall and the inner side wall of the copper holder 1 are both provided with annular oil grooves 2, and the positions of the two oil grooves 2 correspond; the three oil inlets 3 are also arranged on the outer side of the copper holder 1, and the two oil grooves 2 arranged on the outer side wall and the inner side wall of the copper holder 1 are communicated through the oil inlets 3.
[0037] Working process: First, the copper holder 1 is installed horizontally along the axial direction; when the installation of the copper holder 1 is completed, one of the three oil inlets 3 needs to be located at the top to correspond to the oil port of the external distributor; the oil inlet 3 located at the top of the copper holder 1 is filled with oil through the external distributor.
[0038] When it is necessary to oil the copper holder 1, the oil inlet 3 located at the top of the copper holder 1 is filled with oil through the oil port of the external distributor until the oil inlet 3 located at the top of the copper holder 1 is full of oil; after the oil inlet 3 located at the top of the copper holder 1 is full of oil, the lubricating oil will overflow from the oil inlet 3 and flow along the circumferential direction of the copper holder 1 through the oil groove 2; when the lubricating oil flows through the oil groove 2 to the other two oil inlets 3, it will flow into the other two oil inlets 3, thereby filling the other two oil inlets 3 with oil.
[0039] As can be seen from the above, in the prior art, the three oil inlets 3 are set at equal intervals of 120° along the circumference of the copper body 1; after the oil inlet 3 located at the top of the copper body 1 is full of oil, the lubricating oil will overflow and flow through the oil groove 2 to fill the other two oil inlets 3; during the process of the lubricating oil flowing through the oil groove 2, the lubricating oil is very easy to seep out from the gaps and cannot completely fill the other two oil inlets 3; when all three oil inlets 3 are full of oil, a large amount of lubricating oil will be wasted.
[0040] In this embodiment, the three oil inlets 3 are equidistantly arranged along the circumference of the copper body 1, which reduces the angle between adjacent oil inlets 3. This eliminates the need for the lubricating oil to flow along a 120° path in the oil groove 2 along the circumference of the copper body 1 as in the prior art. In this embodiment, after the oil inlet 3 at the top of the copper body 1 is full, the lubricating oil only needs to flow slightly along the circumference of the copper body 1 through the oil groove 2 to quickly fill the other two oil inlets 3. At this time, the angle of the lubricating oil flowing in the oil groove 2 is smaller. By reducing the angle of the lubricating oil flowing in the oil groove 2, the leakage and waste of lubricating oil when filling the three oil inlets 3 can be effectively avoided.
[0041] Therefore, in this embodiment, the interval angle between adjacent oil inlets 3 is limited to 15° to 20°. Those skilled in the art can select the interval angle between adjacent oil inlets according to actual needs.
[0042] In this embodiment, as Figure 4 As shown, along the axial direction of the copper body 1, a plurality of transverse grooves 4 are provided on the inner wall of the copper body 1; the transverse grooves 4 and the oil groove 2 are adapted to communicate with each other through the oil inlet 3.
[0043] Understandably, the transverse groove 4 in this embodiment can serve as a lubricating oil channel, allowing the lubricating oil input from the oil inlet 3 to be evenly distributed along the circumference of the copper die-casting body 1 onto its inner wall, forming a continuous oil film. The transverse groove 4 effectively reduces contact wear on the sliding friction surfaces, ensuring the lubrication stability of the copper die-casting body 1 during high-speed die casting.
[0044] It is also understandable that the transverse groove 4 can also dampen the lubricating oil, slow down sudden changes in oil pressure, and avoid lubrication interruption or oil film rupture caused by pressure pulsation; the copper body 1 may undergo thermal expansion in a long-term high-temperature working environment, and the transverse groove 4 can also reduce abnormal changes in the fit clearance caused by material expansion by reserving deformation space, and prevent jamming or local stress concentration.
[0045] Therefore, in the embodiment, the number of the transverse grooves 4 corresponds to the number of the oil inlets 3; meanwhile, the center of the transverse groove 4 is coaxial with the axis of the oil inlet 3; along the axial direction of the copper body 1, the length of the two ends of the transverse groove 4 is 90% to 95% of the length of the two ends of the copper body 1.
[0046] In the embodiment, along the axial direction of the copper body 1, after the lubricating oil fills the oil inlets 3, the lubricating oil will flow to the bottom of the copper body 1 under the influence of gravity, and the bottom of the copper body 1 is smooth, so that the lubricating oil will seep out from the gap after flowing to the bottom, which will cause a certain degree of waste of the lubricating oil.
[0047] Therefore, in the embodiment, as shown in Figure 2 and Figure 3 , the inner wall of the copper body 1 is provided with an oil pool 5 at one end relative to the oil inlets 3.
[0048] Specifically, along the axial direction of the copper body 1, the three oil inlets 3 are concentrated at one end of the copper body 1, and at the opposite end of the oil inlets 3, the copper body 1 is provided with an oil pool 5 for storing the lubricating oil flowing to the bottom of the copper body 1 under the influence of gravity; if the oil pool 5 is arranged on the outer wall of the copper body 1, the oil pool 5 cannot realize the above function; therefore, in the embodiment, the oil pool 5 is arranged on the inner wall of the copper body 1 to realize the above function.
[0049] As can be seen from the above, the function of the oil pool 5 in the embodiment is to store the lubricating oil flowing to the bottom of the copper body 1 under the influence of gravity; along the axial direction of the copper body 1, if the distance between the two ends of the oil pool 5 and the two ends of the copper body 1 does not exist, it means that the oil pool 5 is in an open state, and the lubricating oil will still flow out from the gap after entering the oil pool 5, which cannot store the lubricating oil; therefore, as shown in Figure 2 , along the axial direction of the copper body 1, the two ends of the oil pool 5 are spaced apart from the two ends of the copper body 1, so that the oil pool 5 can store the lubricating oil to prevent the lubricating oil from seeping out from the gap to cause waste of the lubricating oil.
[0050] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A die-casting machine copper head comprising a copper head body, characterized in that, The copper holder body is provided with an oil groove and a plurality of oil inlets on the outer wall of the copper holder body; the plurality of oil inlets penetrate the local oil groove and are arranged along the circumferential direction of the copper holder body; The number of the oil inlets is three; along the circumferential direction of the copper holder body, the interval angle between adjacent oil inlets is 15-20°.
2. A die-casting machine copper bush as claimed in claim 1, characterised in that, Along the axial direction of the copper holder body, a plurality of transverse grooves are arranged on the inner wall of the copper holder body; the transverse grooves and the oil groove are adapted to communicate through the oil inlets.
3. A die-casting machine copper bush as claimed in claim 2, characterised in that, The center of the transverse groove is coaxial with the axis of the oil inlet.
4. A die-casting machine copper bush as claimed in claim 3, characterised in that, Along the axial direction of the copper holder body, the length of the transverse groove at both ends is 90-95% of the length of the copper holder body at both ends.
5. A die-casting machine copper bush as claimed in claim 1, wherein, The inner wall of the copper holder body is provided with an oil pool at one end axially extending relative to the oil inlet.
6. A die-casting machine as claimed in claim 5, characterized in that The two ends of the oil pool are spaced apart from the two ends of the copper holder body.