A kind of suspension roller grinding roller convenient for oil release
By designing a one-way valve oil discharge device on the suspension roller grinding roller, the combination of spring and top rod is used to achieve oil sealing and leak-free discharge, solving the problems of oil leakage and operation difficulties in the prior art, and improving the Oil drainage efficiency and safety.
Patent Information
- Application Number
- CN201711439083.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2017-12-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2037-12-27
AI Technical Summary
The existing suspended roll grinding rollers have oil leakage and operation difficulties during oil discharge, especially when the space inside the mill is small and the wrench is required, which leads to time-consuming and labor-intensive and contaminated.
A one-way valve type oil discharge device is designed, including a spring, sealing head, joint and oil discharge pipeline assembly. The spring compression head is closely in contact with the joint to ensure that the oil is sealed in the grinding roller, and the pinch rod is pushed during rotation. Opening head enables oil leakage without leakage and no wrench tool operation.
It achieves no oil leakage during oil discharge, is simple and convenient to operate, improves work efficiency, and avoids lubricating oil contamination materials.
Smart Images
Figure CN107890914B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a suspension roller grinding device, in particular to a suspension roller grinding roller with a simple structure and convenient oil discharge without oil leakage during the oil discharge process. Background Art
[0002] When the rollers on the suspension roller mill are lubricated with thin oil, the rollers need to be lubricated regularly, and the oil change cycle is not long. At present, there are two common methods for draining the rollers of suspension roller mills: one is to remove the rollers from the mill and disassemble them before draining the oil, which is very time-consuming and labor-intensive; the other is to drain the oil through the drain hole at the bottom of the roller, remove the drain hole bolts, and let the lubricating oil flow out from the oil discharge port.
[0003] This simple method of draining oil through the oil drain hole also has great disadvantages: First, the space inside the mill is small and the bolts are located low, making it difficult for a wrench to be used under such conditions; second, after the bolts are removed, the discharged oil cannot be collected in time and leaks, causing contamination to the material. Summary of the invention
[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a suspension roller grinding roller which has a simple structure, does not require tools such as wrenches, does not leak oil during the oil discharge process, and is convenient for oil discharge.
[0005] The technical solution of the present invention is achieved in this way:
[0006] A grinding roller of a suspended roller mill for convenient oil discharge comprises a grinding roller shaft sleeved in the grinding roller, a copper sleeve, a grinding roller core and a grinding roller sleeve are sleeved on the outside of the grinding roller shaft in sequence, an oil filling hole is arranged at the axis of the grinding roller shaft, a bottom cover is arranged at the bottom of the grinding roller shaft, a radially extending oil discharge hole is arranged on the side wall of the bottom cover, the inner diameter of the outer section of the oil discharge hole is greater than the inner diameter of the inner section, the oil discharge hole is connected with the oil filling hole, a one-way valve type oil discharge device is arranged at the oil discharge hole, and the one-way valve type oil discharge device comprises a spring, a sealing head, and a spring arranged on the outer section of the oil discharge hole from the inside to the outside, and a spring located outside the oil discharge hole. A joint detachably connected to the oil drain hole and an oil drain pipeline assembly detachably connected to the joint, the spring is in a compressed state, the head is in close contact with the inner end of the joint, the interior of the joint has a through-length cavity, the oil drain pipeline assembly is a tubular structure with a cavity inside, a radial baffle is arranged inside the oil drain pipeline assembly, an oil outlet is arranged on the circumference of the baffle, a push rod is arranged on the baffle, the push rod is axially arranged and extends toward the head, and when the oil drain pipeline assembly and the joint are fully installed, the push rod can push the head open and separate from the inner end surface of the joint.
[0007] The oil drain pipeline assembly is threadedly connected to the joint.
[0008] The oil drain pipeline assembly is connected to the joint by snap-fit.
[0009] The sealing head is a steel ball, and the inner end of the joint has an arc surface matching the circumference of the steel ball.
[0010] The sealing head is a conical valve core matched with the joint.
[0011] The outer contour of the oil drain pipeline assembly is in a polygonal shape.
[0012] The free end of the mandrel has a concave surface matching the sealing head.
[0013] The positive effect of the present invention is that the head seals the oil in the grinding roller without oil leakage under the action of spring pressure, one end of the joint is threadedly connected to the oil drain hole, and the other end of the joint is threadedly connected or snap-fitted to the oil drain pipeline assembly, such a structural design is convenient for manual disassembly and assembly; when the joint is installed to the oil drain hole, the head seal is squeezed at the inner end of the joint by the spring pressure, and the oil is sealed in the grinding roller without flowing out; when the oil needs to be drained, the oil drain pipeline assembly is connected, and there is a push rod in the oil drain pipeline assembly. When the oil drain pipeline assembly and the joint are just started to be screwed together, the push rod and the head seal are not in contact, and during the continuous screwing process of the threads, the push rod slowly pushes the head seal open, so that the head seal and the inner end of the joint are completely separated, and at this time, the oil in the grinding roller can flow to the outside of the grinding mill along the oil drain pipeline assembly; when the oil drain pipeline assembly is snap-fitted to the joint, the snap-fit connection of the oil drain pipeline assembly and the joint is completed, and the push rod pushes the head seal open, and the oil in the grinding roller flows out. The oil discharge device of the present invention will not leak lubricating oil during the oil discharge process, and the oil discharge process is operated by hand without the need for tools such as wrenches, which is simple and convenient and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present invention.
[0015] Figure 2 yes Figure 1 Schematic diagram of the AA section structure.
[0016] Figure 3 yes Figure 2 An enlarged view of the structure when the head at point B is a steel ball.
[0017] Figure 4 yes Figure 2 The structure enlarged diagram of the head at B when it is a conical valve core
[0018] Figure 5 It is a structural schematic diagram of the oil drain pipeline assembly of the present invention.
[0019] Figure 6 yes Figure 5 Schematic diagram of the end cross-section structure.
[0020] Figure 7 It is a schematic diagram of the installation state of the one-way valve type oil discharge device of the present invention. DETAILED DESCRIPTION
[0021] like Figures 1 to 7 As shown, a suspended roller grinding roller for convenient oil drainage comprises a grinding roller shaft 2 sleeved in a grinding roller 1, a copper sleeve 3, a grinding roller core 4 and a grinding roller sleeve 5 are sleeved on the outside of the grinding roller shaft 2 in sequence, an oil filling hole 6 is provided on the axis of the grinding roller shaft 2, a bottom cover 7 is provided at the bottom of the grinding roller shaft 2, and a radially extending oil drain hole 8 is provided on the side wall of the bottom cover 7, the inner diameter of the outer section of the oil drain hole is larger than the inner diameter of the inner section, the oil drain hole 8 is communicated with the oil filling hole 6, and a one-way valve type oil drain device is connected to the oil drain hole 8, and the one-way valve type oil drain device comprises a spring 9, a head 10, a joint 11 located outside the oil drain hole and threadedly connected to the oil drain hole, and an oil drain pipeline assembly 12 threadedly or snap-connected to the joint, the spring 9 is in a compressed state, the head 10 is in close contact with the inner end of the joint 11, and when the head 10 is a steel ball, the joint 11 The inner end portion has an arc surface that matches the circumference of the head 10, and the sealing effect is good. When the head 10 is a conical valve core, the head has a conical structure that matches the joint. The joint 11 has a through-length cavity inside. The oil drain line assembly 12 is a tubular structure with a cavity inside. The outer contour of the oil drain line assembly 12 is polygonal. A radial baffle 13 is fixedly connected to the inside of the oil drain line assembly 12. An oil outlet 14 is reserved on the circumference of the baffle 13. A push rod 15 is fixedly installed on the baffle 13. The push rod 15 is axially arranged and extends toward the head. When the head 10 is a steel ball, the free end of the push rod 15 has a concave surface that matches the steel ball. When the head 10 is a conical valve core, the free end of the push rod 15 has a plane that matches the conical valve core. When the oil drain line assembly 12 and the joint 11 are fully installed, the push rod can push the head open and separate from the inner end surface of the joint.
Claims
1. A roller of a suspended roller mill for convenient oil discharge, comprising a roller shaft sleeved in the roller, a copper sleeve, a roller core and a roller sleeve sleeve sleeved in sequence on the outside of the roller shaft, an oil filling hole is arranged at the axis of the roller shaft, a bottom cover is arranged at the bottom of the roller shaft, a radially extending oil discharge hole is arranged on the side wall of the bottom cover, the inner diameter of the outer section of the oil discharge hole is larger than the inner diameter of the inner section, the oil discharge hole is connected with the oil filling hole, and the characteristics are: The oil drain hole is provided with a one-way valve type oil drain device, and the one-way valve type oil drain device comprises a spring, a sealing head, a joint located outside the oil drain hole and detachably connected to the oil drain hole, and an oil drain pipeline assembly detachably connected to the joint, which are sequentially arranged at the outer section of the oil drain hole from the inside to the outside. The spring is in a compressed state, the sealing head is in close contact with the inner end of the joint, the interior of the joint has a through-length cavity, the oil drain pipeline assembly is a tubular structure with a cavity inside, a radial baffle is arranged inside the oil drain pipeline assembly, an oil outlet is arranged on the circumference of the baffle, a push rod is arranged on the baffle, the push rod is axially arranged and extends toward the sealing head, and when the oil drain pipeline assembly and the joint are fully installed, the push rod can push the sealing head away from the inner end surface of the joint; The oil drain pipeline assembly is threadedly connected to the joint; The sealing head is a steel ball, and the inner end of the joint has an arc surface matching the circumference of the steel ball.
2. The suspension roller grinding roller for convenient oil discharge according to claim 1 is characterized in that: The sealing head is a conical valve core matched with the joint.
3. The suspension roller grinding roller for convenient oil discharge according to claim 1 is characterized in that: The outer contour of the oil drain pipeline assembly is in a polygonal shape.
4. The suspension roller grinding roller for convenient oil discharge according to claim 1 is characterized in that: The free end of the mandrel has a concave surface matching the sealing head.