Outer ring dismounting die for back-to-back experiment of tapered roller bearing
By designing a telescopic locking mechanism and a disassembly mold for the rotary adjustment part, the problem of difficult disassembly of the outer ring of the tapered roller bearing in the experiment was solved, and efficient and low-cost outer ring disassembly was achieved.
Patent Information
- Application Number
- CN202422939893.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In the starting friction torque test of tapered roller bearings installed back-to-back, the existing disassembly mold is difficult to disassemble due to the interference fit between the bearing outer ring and the experimental tooling and the internal space structure limitations. Conventional devices cannot effectively remove the outer ring.
A disassembly mold including a telescopic locking mechanism and a rotary adjustment part is designed. By utilizing the coordinated cooperation of the telescopic locking mechanism and the rotary adjustment part, the mold can be put into the experimental tooling and clamped to the outer ring of the bearing by holding the handle or pressing the disassembly panel, and then the outer ring can be peeled off and removed.
The simple and efficient disassembly of the bearing outer ring in the experimental tooling is realized, which reduces the processing cost. It has wide applicability, flexible operation and can meet the disassembly needs of outer rings of different sizes.
Smart Images
Figure CN223449490U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing dismounting device technical field, especially to a kind of outer ring dismounting mould for conical roller bearing back-to-back experiment. BACKGROUND
[0002] In order to evaluate the quality and reliability of bearing and further improve optimization product, the experiment of conical roller bearing has the important role that cannot be ignored for guaranteeing the normal operation of mechanical equipment of each industry, improving product quality and reducing cost. With the improvement of production practice to the performance requirement of bearing, the starting friction torque life experiment of conical roller bearing has been indispensable in bearing experiment. But in the starting friction torque experiment of two outer rings back-to-back installation, its outer ring and experimental tooling belong to interference fit, and there is a narrow inner step in the inner cylindrical surface of experimental tooling matched with outer ring, leading to the outer ring installation of this kind of experimental bearing is easy, and outer ring dismounting is difficult, the current dismounting mould has two kinds, one is composed of many parts, and the processing cost is high, even because the gap between the big end faces of two outer rings is too small, so the dismounting claw cannot be put into dismounting surface to dismount, the other is dismounting ring, but the distance between the end faces of two outer rings is small in this kind of experimental work, the thickness of dismounting ring is too thin, leading to insufficient rigidity, and the experimental tooling is also installed bearing inner ring assembly, which may appear the phenomenon that there is not enough space to install dismounting ring. Therefore, a set of dismounting mould with low processing cost, simple operation and improving the dismounting efficiency of bearing outer ring is needed in the practical process. SUMMARY
[0003] The utility model aims at providing a kind of outer ring dismounting mould for conical roller bearing back-to-back experiment, to solve the problem that the bearing outer ring is difficult to be taken out from experimental tooling in the starting friction torque life experiment of conical roller bearing in prior art due to the interference fit of bearing outer ring and experimental tooling and the limitation of internal space structure of experimental tooling.
[0004] To solve the above problems, the technical scheme adopted by the utility model is:
[0005] A kind of outer ring dismounting mould for conical roller bearing back-to-back experiment, including cylindrical mould body, characterized by further including telescopic clamping mechanism and rotary adjusting piece;The telescopic clamping mechanism includes cross-shaped cross guide rail arranged at the bottom of mould body, the telescopic clamping mechanism further includes telescopic block arranged in cross-shaped cross guide rail and slidably matched with cross-shaped cross guide rail, extrusion block fixedly connected on one side of telescopic block, limiting protrusion fixedly connected at the top of telescopic block, rotary disc arranged above cross-shaped cross guide rail and slidably matched with limiting protrusion, recess is embedded with rotary disc, and the rotary adjusting piece is rotationally matched with mould body and acts on rotary disc.
[0006] Further, the rotating disc is provided with arc-shaped limiting holes equal in number to the telescopic blocks, and the limiting protrusions are inserted into the arc-shaped limiting holes and can move along the tracks of the arc-shaped limiting holes.
[0007] Further, a through hole is formed downward along the axial line direction at the top center of the mold body.
[0008] Further, the rotating adjusting member comprises a rotating shaft inserted into the through hole, a dismounting panel fixedly connected to the top of the rotating shaft and located above the mold body, and a holding handle fixedly connected to the top of the dismounting panel, and the rotating shaft is fixedly connected to the rotating disc.
[0009] The utility model discloses the beneficial effects are:
[0010] 1. In the process of stripping the bearing outer ring from the experimental tooling, the telescopic clamping mechanism and the rotating adjusting member are cooperated to make the dismounting mold enter the inside of the experimental tooling smoothly, and be clamped in the gap between the two back-to-back tapered roller bearing outer rings in the experimental tooling. After clamping, the dismounting mold can be pressed by the holding handle or the dismounting panel, so that the pressure is transmitted to the end face of the dismounted bearing outer ring, and then the bearing outer ring is stripped from the experimental tooling and the remaining bearing outer ring is taken out, so that the dismounting mold has a simpler structure, a more efficient way and a lower processing cost, and the related staff can dismount the bearing outer ring in the experimental tooling more easily.
[0011] 2. The dismounting mold can control the radial displacement of the extrusion block within a certain range, so as to adapt to the dismounting operation of the bearing outer ring of different sizes within a certain range, and the applicability is wider and the operation is more flexible compared with the conventional bearing dismounting mold. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a structural schematic view of the utility model clamped in the experimental tooling.
[0013] Fig. 2 It is a top view of the telescopic clamping mechanism of the utility model.
[0014] Fig. 3 It is a structural schematic view of the mold body and the telescopic clamping mechanism of the utility model.
[0015] The reference signs in the drawings are as follows: 1, mold body; 2, cross-shaped guide rail; 3, telescopic block; 4, extrusion block; 5, limiting protrusion; 6, rotating disc; 7, arc-shaped limiting hole; 8, through hole; 9, rotating shaft; 10, dismounting panel; 11, holding handle; 12, experimental tooling; 13, bearing outer ring. DETAILED DESCRIPTION
[0016] The utility model will be described in detail in combination with the drawings and specific embodiments.
[0017] See also Figs. 1-3 , a tapered roller bearing back-to-back test outer ring disassembly mold, comprising a cylindrical mold body 1, a telescopic positioning mechanism and a rotary adjustment member; the telescopic positioning mechanism comprises a cross guide rail 2 provided at the bottom of the mold body 1, the cross guide rail 2 is formed by two guide rails vertically crossing, and the guide rails are connected to each other, the cross guide rail 2 can carry a telescopic block 3 and enable the telescopic block 3 to move within the cross guide rail 2; the telescopic positioning mechanism also comprises a telescopic block 3 provided in the cross guide rail 2 and slidingly matched with the cross guide rail 2, an extrusion block 4 fixedly connected to one side of the telescopic block 3, and a telescopic The expansion and contraction of the shrinking block 3 will drive the extrusion block 4 to move and get stuck in the gap between the two back-to-back bearing outer rings 13; the limiting protrusion 5 fixedly connected to the top of the telescopic block 3, the rotating disk 6 provided above the cross guide rail 2 and slidingly matched with the limiting protrusion 5, the bottom of the mold body 1 is provided with a groove engaged with the rotating disk 6, the rotating adjustment part rotates with the mold body 1 and acts on the rotating disk 6, driving the rotating disk 6 will drive the limiting protrusion 5 to move in the arc-shaped limiting hole 7 in the rotating disk 6, thereby making the telescopic locking mechanism expand and contract so that the disassembled mold can be smoothly placed into the experimental tooling 12 and stuck in the end face of the bearing outer ring 13.
[0018] The rotating disk 6 is provided with an equal number of arc-shaped limiting holes 7 as the number of telescopic blocks 3. The limiting protrusions 5 are inserted into these arc-shaped limiting holes 7 and can move along the trajectory of these arc-shaped limiting holes 7. As the limiting protrusions 5 move within these arc-shaped limiting holes 7, they simultaneously control the horizontal extension and contraction of the telescopic blocks 3. Furthermore, the top portion of the cross-guide rail 2, near the center of the cross, has an opening of a certain width, allowing the limiting protrusions 5 to extend and enter the arc-shaped limiting holes 7, thereby driving the movement of the telescopic blocks 3 and the extrusion block 4 as the rotating disk 6 rotates.
[0019] A through hole 8 is opened downward along the axial direction at the center of the top of the mold body 1; the rotary adjustment part includes a rotary shaft 9 inserted into the through hole 8, and the rotary shaft 9 connects the telescopic locking mechanism and the rotary adjustment part to carry out the rotation function; a disassembly panel 10 is fixedly connected to the top of the rotary shaft 9 and located above the mold body 1, and squeezing the disassembly panel 10 can transmit pressure to the end face of the bearing outer ring 13 to remove the bearing outer ring 13; a gripping handle 11 is fixedly connected to the top of the disassembly panel 10, and the operator holds the gripping handle 11 to drive the telescopic locking mechanism to rotate to control the extension and retraction of the telescopic block 3 and the extrusion block 4; the rotary shaft 9 is fixedly connected to the rotating disk 6.
[0020] The usage and working principle of this utility model are as follows:
[0021] After the start-up friction torque life test of the tapered roller bearing, the bearing outer ring 13, which is interference-fitted with the test fixture 12, needs to be removed. First, the operator rotates the retractable locking mechanism of the removal mold by holding the handle 11, causing the extrusion block 4 to retract into the removal mold, facilitating its placement into the test fixture 12. After placement, the extrusion block 4 of the mold is aligned with the gap between the end faces of the two back-to-back bearing outer rings 13. While holding the removal mold and stabilizing it, the operator rotates the handle 11, driving the rotating disk 6. The retractable block 3, engaged with the rotating disk 6 by the stop protrusion 5, undergoes horizontal displacement within the cross guide 2 due to the rotation of the rotating disk 6, causing the extrusion block 4, connected to the retractable block 3, to engage the gap between the end faces of the two back-to-back bearing outer rings 13 and press against the inner step. Once locked, the operator can press the handle 11 or directly press the removal panel 10 to transmit pressure to the end face of the bearing outer ring 13 being removed, thereby peeling the bearing outer ring 13 from the test fixture 12. After peeling off one of the bearing outer rings 13 , the above operation can be repeated to remove the remaining bearing outer rings 13 , thereby peeling off the tapered roller bearing outer ring 13 from the experimental tooling 12 .
[0022] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A mold for disassembling the outer ring of a tapered roller bearing in a back-to-back test, comprising a cylindrical mold body (1), characterized in that: The invention also includes a telescopic positioning mechanism and a rotary adjustment member; the telescopic positioning mechanism includes a cross guide rail (2) provided at the bottom of the mold body (1); the telescopic positioning mechanism also includes a telescopic block (3) provided in the cross guide rail (2) and slidingly engaged with the cross guide rail (2); an extrusion block (4) fixedly connected to one side of the telescopic block (3); a limiting protrusion (5) fixedly connected to the top of the telescopic block (3); and a rotary disk (6) provided above the cross guide rail (2) and slidingly engaged with the limiting protrusion (5); a groove engaged with the rotary disk (6) is provided at the bottom of the mold body (1); and the rotary adjustment member is rotationally engaged with the mold body (1) and acts on the rotary disk (6).
2. The outer ring removal mold for back-to-back testing of tapered roller bearings according to claim 1, characterized in that: The rotating disk (6) is provided with arc-shaped limiting holes (7) having the same number as the telescopic blocks (3), and the limiting protrusions (5) are inserted into the arc-shaped limiting holes (7) and can move along the tracks of the arc-shaped limiting holes (7).
3. The outer ring removal mold for back-to-back testing of tapered roller bearings according to claim 1, characterized in that: A through hole (8) is provided at the center of the top of the mold body (1) downwardly along the axis.
4. The outer ring removal die for back-to-back testing of tapered roller bearings according to claim 3, characterized in that: The rotary adjustment member comprises a rotary shaft (9) inserted into the through hole (8), a disassembly panel (10) fixedly connected to the top of the rotary shaft (9) and located above the mold body (1), and a gripping handle (11) fixedly connected to the top of the disassembly panel (10). The rotary shaft (9) is fixedly connected to the rotary disk (6).