Combined bearings for high-speed presses

Abstract

The present invention relates to the field of bearing technology, and in particular to a combination bearing for a rapid press. It is mainly aimed at the problem that a rapid press is subjected to large pressure shocks during operation, resulting in insufficient bearing strength during use, which may damage the ball bearing and reduce the safety of the press. The following technical solution is proposed: comprising a combination bearing, a crankshaft body and a connecting rod body, wherein the combination bearing is sleeved on the outer ring of the crankshaft body, the combination bearing comprising a second bearing component, and bearing components 1 are respectively provided on both sides of the second bearing component, the first bearing component comprising a bearing housing, and a through hole 1 is provided on one side of a group of the bearing housings. The present invention has a compact and novel structure and diverse functions. It can disperse the pressure on the bearing assembly, disperse the impact pressure, extend the service life of the bearing assembly, and has a lubrication and oil supply function to avoid excessive wear of the assembly. It is mainly used in combination bearings for rapid presses.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, in particular to a combined bearing for a rapid press. Background Art

[0002] Currently, high-speed presses often use sliding bearings, also known as sleeves or bushings, at the connection between the crankshaft and the connecting rod. To ensure good crankshaft rigidity, the design margin is generally larger than that of conventional presses, resulting in a significantly larger crankshaft diameter. If sliding bearings were still used, frictional resistance generated during high-speed operation would inevitably increase, resulting in poor lubrication of the sliding bearings. During high-speed operation, the bearings would frequently be subjected to impact loads, requiring further improvements in the material's fatigue resistance, seizure resistance, compliance, and embeddability. This would significantly increase manufacturing costs and reduce service life. Sliding bearings, in terms of process technology, require high coaxiality at the crankshaft support. Poor coaxiality can also cause abnormal temperature rise during machine operation, leading to excessive bearing wear and even "burning." Patent CN102825823B proposes a "combined bearing for high-speed presses." This solution utilizes an oil inlet, oil groove, and oil outlet to effectively lubricate the bearings through the oil inlet, reducing wear and heat generation, thereby extending the bearing's service life. Currently, the bearings used in rapid presses on forging machinery are all ball bearings. These bearings are subject to impact pressure during operation, which can often damage them. If they become stuck during operation, accidents can easily occur. In light of this, we propose a combination bearing for rapid presses. Summary of the Invention

[0003] The purpose of the present invention is to propose a combined bearing for a rapid press to address the problem in the background technology that a rapid press is subjected to large pressure shocks during operation, resulting in insufficient strength of the bearings in use, damage to the ball bearings, and low safety of the press.

[0004] The technical solution of the present invention is as follows: a combined bearing for a rapid press, comprising a combined bearing, a crankshaft body, and a connecting rod body, wherein the combined bearing is sleeved on the outer ring of the crankshaft body, the combined bearing comprising a second bearing component, and bearing components 1 are respectively provided on both sides of the second bearing component, the first bearing component comprising a bearing housing, a through hole 1 being opened on one side of the bearing housing of one group, a buffer washer being provided between the first bearing component and the second bearing component of one group, and a lubrication protection component being provided between the first bearing component and the second bearing component of another group, wherein the inner ring of the lubrication protection component is provided with a pushing component;

[0005] The pushing assembly includes a second metal ring mounted on the inner ring of the lubrication protection assembly, and a plurality of balls are mounted on the second metal ring along its circumferential array;

[0006] The second bearing component includes a bearing sleeve, a bearing inner sleeve and a roller component. The inner ring of the bearing inner sleeve is further provided with a first metal ring. A slot cavity is provided between the first metal ring and the bearing inner sleeve.

[0007] Preferably, a plurality of buffer grooves are provided on the first metal ring, the first metal ring is made of low-hardness metal, and the side of the second metal ring away from the bearing member is adapted to be installed with the inner wall of the slot cavity.

[0008] Preferably, the bearing inner sleeve is provided with oil inlet holes distributed in an array along its circumference, and the oil inlet holes are used to transport lubricating oil to the interior of the bearing sleeve and the bearing inner sleeve.

[0009] Preferably, the diameter of the ball is larger than the inner diameter of the slot cavity, and the outer diameter of one end of the second metal ring close to the bearing member is larger than the outer diameter of the other end.

[0010] Preferably, the lubrication protection component includes an inner ring movably sleeved with the outer ring of the crankshaft body, the outer ring of the inner ring is fixedly sleeved with a porous pad, and the outer ring of the porous pad is sleeved with a fixed ring.

[0011] Preferably, an oil delivery hole is provided on the fixing ring and is penetrated therethrough, and one end of the oil delivery hole is connected to a pipeline for delivering lubricating oil.

[0012] Preferably, the second metal ring passes through the inner ring of the inner ring, and the inner ring of the second metal ring is slidably arranged on the outer ring of the crankshaft body.

[0013] Preferably, the inner ring diameter of the buffer washer is larger than the maximum outer diameter of the crankshaft body.

[0014] Preferably, threaded holes are provided on the bearing housing and the connecting rod body, and bolts for fixing the bearing housing and the connecting rod body are threadedly connected in the threaded holes.

[0015] Preferably, the thickness of the porous pad is greater than the thickness of the fixed ring and the inner ring, and the porous pad is made of rubber.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] 1. The present invention provides a second bearing component and two groups of first bearing components. The two groups of first bearing components are fixedly sleeved on the outer ring of the crankshaft body. When the crankshaft body is under pressure, the first bearing component of the right group is subjected to impact pressure. At the same time, the pair of bearing components squeezes the pushing assembly, causing the pushing assembly to squeeze and impact the lubrication protection assembly, so that the pushing assembly enters the intermediate surface between the metal ring and the inner sleeve of the bearing. Combined with the squeezing effect of the balls, the metal ring is squeezed and fitted with the outer ring of the crankshaft body. The impact rotation of the outer ring of the crankshaft body is added by the second bearing component. At the same time, the first bearing component on the left side is also impacted and rotates synchronously, so that the two groups of first bearing components and the first group of second bearing components rotate simultaneously, so that the pressure on the individual bearings of the combined bearing is dispersed, thereby extending the service life of the bearing and ensuring safe production.

[0018] 2. The present invention also provides the lubrication protection component, the oil inlet hole, the buffer washer, and the through hole 1, so that the lubricating oil delivered from the oil delivery hole in the fixing ring is delivered to the entire bearing assembly through the oil inlet hole, the buffer washer, and the through hole 1, so that the entire combined bearing is lubricated and the wear of the components is reduced;

[0019] 3. In summary, the present invention has a compact and novel structure and diverse functions. It can disperse the pressure on the bearing assembly and disperse the impact pressure, thereby extending the service life of the bearing assembly and having the function of lubricating oil to avoid excessive wear of the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the main view of the combined bearing for the rapid press;

[0021] Figure 2 yes Figure 1 A schematic diagram of a partial cross-sectional structure;

[0022] Figure 3 yes Figure 2 A front view schematic diagram of

[0023] Figure 4 It is an exploded schematic diagram of the combined bearing;

[0024] Figure 5 yes Figure 4 Schematic diagram from another perspective;

[0025] Figure 6 It is a cross-sectional schematic diagram of the bearing component 2.

[0026] Reference numerals:

[0027] 1. Crankshaft body;

[0028] 2. Connecting rod body;

[0029] 3. Bearing part 1; 31. Bearing housing; 32. Bolt; 33. Through hole 1;

[0030] 4. Second bearing component; 41. Bearing sleeve; 42. Bearing inner sleeve; 43. Roller component; 44. First metal ring; 45. Oil inlet hole;

[0031] 5. Buffer washer;

[0032] 6. Lubrication protection assembly; 61. Retaining ring; 62. Pore pad; 63. Inner ring; 64. Oil delivery hole;

[0033] 7. Pushing assembly; 71. Second metal ring; 72. Ball bearing. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0035] like Figure 1-6 As shown, the combined bearing for a rapid press proposed by the present invention includes a combined bearing, a crankshaft body 1 and a connecting rod body 2. The combined bearing is sleeved on the outer ring of the crankshaft body 1. The combined bearing includes a bearing part 2 4. Bearing parts 1 3 are respectively provided on both sides of the bearing part 2 4. Figure 2 and Figure 3 As shown, bearing component 1 3 includes a bearing housing 31. One side of one set of bearing housings 31 has a through-hole 1 33. Both the bearing housing 31 and the connecting rod body 2 have threaded holes, threadedly connected to bolts 32 for securing the bearing housing 31 and the connecting rod body 2. A buffer washer 5 is disposed between one set of bearing components 1 3 and 2 4 . The inner diameter of the buffer washer 5 is larger than the maximum outer diameter of the crankshaft body 1 , providing a buffer between the bearing housing 31 and one side of the second bearing component 4 . A lubrication protection assembly 6 is disposed between the other set of bearing components 1 3 and 2 4 , the inner ring of which is provided with a push assembly 7 .

[0036] like Figure 4 As shown, the pushing assembly 7 includes a second metal ring 71 installed on the inner ring of the lubrication protection assembly 6, and a plurality of balls 72 are installed on the second metal ring 71 along its circumferential array; the diameter of the balls 72 is larger than the inner diameter of the slot cavity, and the outer diameter of one end of the second metal ring 71 close to the bearing member 3 is larger than the outer diameter of the other end. The end of the second metal ring 71 with a larger outer diameter is used to contact with the bearing member 3, and the end of the second metal ring 71 with a smaller outer diameter is installed in the slot cavity.

[0037] like Figure 5 and Figure 6As shown, bearing component 2 4 includes a bearing sleeve 41, a bearing inner sleeve 42, and a roller 43. The inner ring of bearing inner sleeve 42 is further provided with a first metal ring 44, with a retaining groove defined between the first metal ring 44 and the bearing inner sleeve 42. The first metal ring 44 is provided with multiple buffer grooves and is made of a low-hardness metal. The second metal ring 71 is adapted to fit within the inner wall of the retaining groove on the side away from bearing component 1 3.

[0038] In this embodiment, when the crankshaft body 1 is subjected to impact pressure, the crankshaft body 1 moves synchronously with the bearing part 3 on one side, so that the bearing part 3 squeezes the larger outer diameter of one end of the second metal ring 71, so that the bearing housing 31 pushes the pushing component 7 as a whole, and the second metal ring 71 moves along the inner ring of the lubricating protection component 6. The ball 72 passes through the inner ring of the lubricating protection component 6 and is installed against the inner wall of the slot cavity. Since the outer diameter of the ball 72 is larger than the slot cavity, the ball 72 squeezes the first metal ring 44, so that the inner wall of the first metal ring 44 is The ring fits with the outer ring of the crankshaft body 1, so that the impact pressure of a group of bearing parts 3 is dispersed, and the bearing part 2 4 fits with the outer ring of the crankshaft body 1 and rotates synchronously, so that the impact pressure is dispersed. When the bearing part 2 4 is pushed and squeezed by the bearing part 1 3, the bearing part 2 4 squeezes the buffer washer 5 on the other side. The buffer washer 5 is used to buffer the other bearing part 1 3, so that the entire combined bearing is buffered, avoiding damage to the bearing caused by excessive pressure of the press, dispersing the pressure, and extending the service life of the combined bearing. Example 2

[0039] like Figure 1-6 As shown, the combined bearing for a rapid press proposed in the present invention, compared with the first embodiment, this embodiment also includes a combined bearing, a crankshaft body 1 and a connecting rod body 2, the combined bearing is sleeved on the outer ring of the crankshaft body 1, the combined bearing includes a bearing component 2 4, and bearing components 1 3 are respectively provided on both sides of the bearing component 2 4, the bearing component 1 3 includes a bearing shell 31, a through hole 1 33 is opened on one side of a group of bearing shells 31, a buffer washer 5 is provided between one group of bearing components 1 3 and bearing components 2 4, and a lubrication protection component 6 is provided between the other group of bearing components 1 3 and bearing components 2 4.

[0040] like Figure 4 and Figure 5 As shown, the lubrication protection component 6 includes an inner ring 63 movably sleeved with the outer ring of the crankshaft body 1, the outer ring of the inner ring 63 is fixedly sleeved with a pore pad 62, the outer ring of the pore pad 62 is sleeved with a fixing ring 61, the thickness of the pore pad 62 is greater than the thickness of the fixing ring 61 and the inner ring 63, the pore pad 62 is made of rubber, and an oil delivery hole 64 is provided on the fixing ring 61, one end of the oil delivery hole 64 is connected to a pipeline for delivering lubricating oil, which is used to extend to the card slot cavity through the second metal ring 71, and then delivered to the roller member 43 through the oil inlet hole 45 to lubricate the ball.

[0041] like Figure 5 As shown, the inner ring of the lubrication protection component 6 is provided with a pushing component 7, which includes a second metal ring 71 installed on the inner ring of the lubrication protection component 6, and a plurality of balls 72 are installed on the second metal ring 71 along its circumferential array; the second metal ring 71 passes through the inner ring of the inner ring 63, and the inner ring of the second metal ring 71 is slidably arranged on the outer ring of the crankshaft body 1.

[0042] like Figure 6 As shown, the bearing component 2 4 includes a bearing sleeve 41, a bearing inner sleeve 42 and a roller component 43. The inner ring of the bearing inner sleeve 42 is also provided with a first metal ring 44, and a slot cavity is provided between the first metal ring 44 and the bearing inner sleeve 42; the bearing inner sleeve 42 is provided with oil inlet holes 45 distributed in an array along its circumference, and the oil inlet holes 45 are used to transport lubricating oil to the interior of the bearing sleeve 41 and the bearing inner sleeve 42.

[0043] In this embodiment, on the basis of the first embodiment, the lubrication protection component 6 is provided to provide a buffer between the push component 7 and the bearing component 2 4. At the same time, during the use of the combined bearing, lubricating oil is transported to the oil hole 64 through the oil pipe, and flows into the pore pad 62 through the oil hole 64, so that the pore pad 62 discharges oil when being squeezed, extends through the second metal ring 71 of the inner ring 63 and flows into the slot cavity, and enters the oil inlet hole 45 through the slot cavity, and flows into the roller component 43 for lubrication, and the through hole 33 opened on one side of a group of bearing components 1 3 is used to enter the oil, so that the bearing component 3 is lubricated, so that the combined bearing can be lubricated during use and the wear of the components can be reduced.

[0044] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A combined bearing for a rapid press, comprising a combined bearing, a crankshaft body (1) and a connecting rod body (2), characterized in that: The combined bearing sleeve is arranged on the outer ring of the crankshaft body (1), the combined bearing includes a second bearing component (4), a first bearing component (3) is respectively arranged on both sides of the second bearing component (4), the first bearing component (3) includes a bearing shell (31), a through hole (33) is opened on one side of the first bearing shell (31), a buffer washer (5) is arranged between the first bearing component (3) and the second bearing component (4) in one group, and a lubrication protection component (6) is arranged between the first bearing component (3) and the second bearing component (4) in another group, and a pushing component (7) is arranged on the inner ring of the lubrication protection component (6); The pushing assembly (7) comprises a second metal ring (71) mounted on the inner ring of the lubrication protection assembly (6), and a plurality of balls (72) are mounted on the second metal ring (71) in a circumferential array. The second bearing member (4) comprises a bearing sleeve (41), a bearing inner sleeve (42) and a roller member (43); the inner ring of the bearing inner sleeve (42) is further provided with a first metal ring (44); a slot cavity is provided between the first metal ring (44) and the bearing inner sleeve (42); The first metal ring (44) is provided with a plurality of buffer grooves. The first metal ring (44) is made of a metal with low hardness. The second metal ring (71) is adapted to be installed on the inner wall of the slot cavity on a side away from the bearing member (3). The bearing inner sleeve (42) is provided with oil inlet holes (45) distributed in a circumferential array, and the oil inlet holes (45) are used to transport lubricating oil to the interior of the bearing sleeve (41) and the bearing inner sleeve (42); The diameter of the ball (72) is larger than the inner diameter of the slot cavity, and the outer diameter of one end of the second metal ring (71) close to the bearing member (3) is larger than the outer diameter of the other end; The lubrication protection component (6) comprises an inner ring (63) movably sleeved with the outer ring of the crankshaft body (1); the outer ring of the inner ring (63) is fixedly sleeved with a pore pad (62); and the outer ring of the pore pad (62) is sleeved with a fixed ring (61).

2. The combined bearing for a rapid press according to claim 1, characterized in that: The fixing ring (61) is provided with an oil delivery hole (64) extending therethrough, and one end of the oil delivery hole (64) is connected to a pipeline for delivering lubricating oil.

3. The combined bearing for a rapid press according to claim 1, characterized in that: The second metal ring (71) passes through the inner ring of the inner ring (63), and the inner ring of the second metal ring (71) is slidably arranged on the outer ring of the crankshaft body (1).

4. The combined bearing for a rapid press according to claim 1, characterized in that: The inner ring diameter of the buffer washer (5) is larger than the maximum outer diameter of the crankshaft body (1).

5. The combined bearing for a rapid press according to claim 1, characterized in that: The bearing housing (31) and the connecting rod body (2) are both provided with threaded holes, and the threaded holes are internally threaded with bolts (32) for fixing the bearing housing (31) and the connecting rod body (2).

6. The combined bearing for a rapid press according to claim 1, characterized in that: The thickness of the pore pad (62) is greater than the thickness of the fixing ring (61) and the inner ring (63), and the pore pad (62) is made of rubber and has a plurality of pores.

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