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CN-115629002-B - Grinding device for aging test of forged steel balls

CN115629002BCN 115629002 BCN115629002 BCN 115629002BCN-115629002-B

Abstract

The invention discloses a grinding device for aging test of forged steel balls, which comprises a dynamic constant-pressure pre-tightening belt driving mechanism, a flexible rotating speed difference feedback mechanism, a steel ball limiting pre-tightening mechanism and a simulated impact mechanism. The invention belongs to the technical field of steel ball aging tests, and particularly relates to a grinding device for a forged steel ball aging test; the invention provides a flexible rotating speed difference feedback mechanism and a steel ball limiting pre-tightening mechanism, which feed back the slip condition between a steel ball and a belt through the rotating speed difference between a direct linkage idler wheel and a multi-stage transmission idler wheel which are coaxially arranged, so as to judge the surface roughness change of the steel ball, not only facilitate observation, but also realize the technical effect of real-time feedback in the process of simulating impact.

Inventors

  • YU TAO
  • TAO RUNXIANG
  • ZHANG YINGJIAN
  • LIN HUAGANG

Assignees

  • 山东泰金精锻股份有限公司

Dates

Publication Date
20260512
Application Date
20221024

Claims (8)

  1. 1. The grinding device for the aging test of the forged steel balls is characterized by comprising a dynamic constant-pressure pre-tightening belt driving mechanism (1), a flexible rotating speed difference feedback mechanism (2), a steel ball limiting pre-tightening mechanism (3) and a simulated impact mechanism (4), wherein the dynamic constant-pressure pre-tightening belt driving mechanism (1) is arranged on the steel ball limiting pre-tightening mechanism (3), the flexible rotating speed difference feedback mechanism (2) is arranged on the steel ball limiting pre-tightening mechanism (3), the simulated impact mechanism (4) is arranged on the steel ball limiting pre-tightening mechanism (3), the dynamic constant-pressure pre-tightening belt driving mechanism (1) comprises a fixed main driving reference component (5), a thermal driving pressure maintaining component (6), a guiding type heat conveying component (7) and a driving belt elastic pre-tightening component (8), the fixed main driving reference component (5) is arranged on the steel ball limiting pre-tightening mechanism (3), the guiding type heat conveying component (7) is symmetrically and fixedly arranged between the main driving reference component (5) and the thermal driving pressure maintaining component (6), and the driving belt elastic pre-tightening component (8) is symmetrically arranged between the main driving reference component (5) and the main driving reference component (6); The fixed main driving reference assembly (5) comprises a rotary belt driving motor (9), a hidden bearing (10) and a symmetrical cantilever connecting rod (11), wherein the rotary belt driving motor (9) is arranged on a steel ball limiting pre-tightening mechanism (3), the hidden bearing (10) is arranged on the rotary belt driving motor (9) through inner ring clamping, one end of the symmetrical cantilever connecting rod (11) is provided with a cantilever connecting rod end lantern ring (20), the symmetrical cantilever connecting rod (11) is rotationally arranged on an outer ring of the hidden bearing (10) through the cantilever connecting rod end lantern ring (20), the other end of the symmetrical cantilever connecting rod (11) is provided with a cantilever connecting rod end protruding shaft (21), a cantilever connecting rod middle groove (22) is further arranged on the symmetrical cantilever connecting rod (11), and the symmetrical cantilever connecting rod (11) is provided with a cantilever connecting rod middle hinging part (23) at the cantilever connecting rod middle groove (22); The flexible rotating speed difference feedback mechanism (2) comprises a main driving assembly (31) and a rotating speed difference feedback assembly (32), wherein the main driving assembly (31) is arranged on the dynamic constant-pressure pre-tightening belt driving mechanism (1), the rotating speed difference feedback assembly (32) is arranged on the steel ball limiting pre-tightening mechanism (3), the main driving assembly (31) comprises a main driving toothed belt wheel (33), a main driving toothed belt wheel (34) and a main driving toothed belt body (35), the main driving assembly (31) is clamped on an output shaft of a rotary belt driving motor (9), the main driving toothed belt wheel (34) is rotationally arranged on a cantilever connecting rod end convex shaft (21), and the main driving toothed belt wheel (33) and the main driving toothed belt wheel (34) are in transmission connection through the main driving toothed belt body (35).
  2. 2. The grinding device for the aging test of the forged steel balls is characterized in that the heat-driven pressure maintaining assembly (6) comprises a heat-driven assembly mounting frame (12), a heat-driven box body (13) and a heat-driven piston connecting rod (14), the heat-driven assembly mounting frame (12) is arranged on a steel ball limiting pre-tightening mechanism (3), the heat-driven box body (13) is fixedly connected to the heat-driven assembly mounting frame (12), a cavity tail ventilation hole (24) for carrying out gas exchange with the outside is formed in the tail of the heat-driven box body (13), a cavity front end guide part (25) is formed in the end of the heat-driven box body (13), the heat-driven piston connecting rod (14) is clamped and slidingly arranged in the cavity front end guide part (25), a piston of the heat-driven piston connecting rod (14) is in sliding and sealing contact with the inside of the heat-driven box body (13), a sealing cavity (26) is formed between the heat-driven box body (13) and the heat-driven piston connecting rod (14), a boss (27) is arranged at the end part of the heat-driven piston connecting rod (14), and a boss (27) is symmetrically arranged at the end part of the connecting rod (27).
  3. 3. The grinding device for aging test of forged steel balls is characterized in that the guiding type heat conveying component (7) comprises a friction block (15) and an outer wrapping type heat conducting rod (16), the friction block (15) is fixedly connected to the side face of a symmetrical cantilever connecting rod (11), one end of the outer wrapping type heat conducting rod (16) is fixedly connected to a heat driving box body (13), the other end of the outer wrapping type heat conducting rod (16) is in sliding contact with the friction block (15), the driving belt elastic pre-tightening component (8) comprises a telescopic sleeve (17), a telescopic rod body (18) and a telescopic rod pre-tightening spring (19), a sleeve end protruding shaft (29) is arranged on the telescopic sleeve (17), the telescopic sleeve (17) is rotationally arranged in a connecting rod boss hinge hole (28) through the sleeve end protruding shaft (29), a telescopic rod end protruding shaft (30) is arranged on the telescopic rod body (18) in a clamping sliding mode, and the telescopic rod end protruding shaft (30) is arranged in the telescopic sleeve body (18) in a sliding mode, and the telescopic rod pre-tightening spring (19) is arranged between the telescopic rod body and the telescopic rod (17).
  4. 4. The grinding device for the aging test of the forged steel balls, as set forth in claim 3, wherein the rotational speed difference feedback assembly (32) comprises a feedback idler spindle (36), a direct linkage idler (37) and a multi-stage transmission idler (38), the feedback idler spindle (36) is arranged on the steel ball limiting pre-tightening mechanism (3), the direct linkage idler (37) is rotatably arranged on the feedback idler spindle (36), and the multi-stage transmission idler (38) is rotatably arranged on the feedback idler spindle (36).
  5. 5. The grinding device for the aging test of the forged steel ball of claim 4, wherein the steel ball limiting and pre-tightening mechanism (3) comprises a steel ball fixing assembly (39) and a feedback belt pre-tightening assembly (40), the feedback belt pre-tightening assembly (40) is arranged on the steel ball fixing assembly (39), the steel ball fixing assembly (39) comprises a main body bottom plate (41), a steel ball seat (42), a steel ball body (43) and a steel ball elastic thimble (44), the rotary belt driving motor (9) is arranged on the main body bottom plate (41), the thermal driving assembly mounting frame (12) is arranged on the main body bottom plate (41), the feedback idler main shaft (36) is arranged on the main body bottom plate (41), the steel ball seat (42) is arranged on the main body bottom plate (41) in a rotating mode, and the steel ball elastic thimble (44) is arranged on the feedback belt pre-tightening assembly (40).
  6. 6. The grinding device for aging test of forged steel balls according to claim 5, wherein the feedback belt pre-tightening assembly (40) comprises a pre-tightening sliding seat (45), a sliding pre-tightening frame (46), a spring mounting seat (47), a mounting frame pre-tightening spring (48), a feedback toothed belt gear (49) and a feedback toothed belt body (50), the pre-tightening sliding seat (45) is arranged on a main body bottom plate (41), the sliding pre-tightening frame (46) is arranged on the pre-tightening sliding seat (45) in a sliding manner, pre-tightening frame top shafts (51) are symmetrically arranged on the sliding pre-tightening frame (46), the feedback toothed belt gear (49) is rotationally arranged on the pre-tightening frame top shafts (51), the feedback toothed belt gear (49), the steel ball body (43) and the multistage transmission idler (38) are transmitted through the feedback toothed belt body (50), the spring mounting seat (47) is arranged on the pre-tightening sliding seat (45), and the mounting frame pre-tightening spring (48) is arranged between the spring mounting seat (47) and the sliding pre-tightening frame (46).
  7. 7. The grinding device for the aging test of the forged steel balls, as set forth in claim 6, wherein the simulated striking mechanism (4) comprises a motor mounting table (52), a striking simulation motor (53), a striking plate mounting frame (54), a striking plate body (55) and suspension type simulated steel balls (56), the motor mounting table (52) is arranged on the main body bottom plate (41), the striking simulation motor (53) is arranged on the motor mounting table (52), the striking plate mounting frame (54) is clamped on an output shaft of the striking simulation motor (53), the striking plate body (55) is arranged on the striking plate mounting frame (54), and the suspension type simulated steel balls (56) are uniformly distributed below the striking plate body (55) in a ring shape.
  8. 8. The polishing apparatus for aging test of forged steel balls as set forth in claim 7, wherein the surface roughness of said feedback toothed belt body (50) is smaller than the surface roughness of said main driving toothed belt body (35).

Description

Grinding device for aging test of forged steel balls Technical Field The invention belongs to the technical field of steel ball aging tests, and particularly relates to a grinding device for a forged steel ball aging test. Background In the process of precise grinding, special steel balls are often used as grinding bodies to be mixed with materials for crushing and grinding the materials. The steel ball is required to be frequently impacted with materials in the working process, so that the materials are crushed into smaller particles, but the materials to be ground are harder, so that the steel ball is smaller (worn), the surface of the steel ball is required to be kept with certain roughness in the grinding process to have good grinding crushing effect, the impact force (deflection direction) is easily removed when the material is impacted by the excessively smooth surface, the surface roughness of the steel ball in the initial state is well ensured, and whether the steel ball can still keep the roughness in the diameter reduction process is an important factor for verifying the quality of the steel ball. The conventional verification mode at present is that the working environment of the steel ball is simulated by the simulation device, the steel ball is taken out to detect the lower surface at intervals in the process, the mode is time-consuming and labor-consuming, and because individual characteristic points are taken for monitoring, accurate, continuous and complete measurement values are not easy to obtain, and the condition of missing the characteristic points is easy to occur. The complete detection data should be continuous, so the invention is based on the defects, and the invention mainly provides a grinding device for the aging test of the forged steel ball, which can continuously measure and feed back in real time. Disclosure of Invention According to the invention, the flexible rotating speed difference feedback mechanism and the steel ball limiting pre-tightening mechanism are creatively provided based on the closed loop feedback principle, and the slip condition between the steel ball and the belt is fed back through the rotating speed difference between the directly linked idler wheel and the multi-stage transmission idler wheel which are coaxially arranged, so that the change of the surface roughness of the steel ball is judged, the observation is facilitated, and the technical effect of real-time feedback in the impact simulation process is realized. Because the diameter of the steel ball can be gradually reduced in the process of simulating impact, how to maintain the pretightening force of the driving belt is a relatively complex technical problem, and therefore, the invention provides a dynamic constant-pressure pretightening belt driving mechanism, and the heat generated by friction between the belt and a hot driving piston connecting rod drives a hot driving type pressure maintaining component to continuously and slowly move, so that the pretightening force of the driving belt elastic pretightening component is maintained in the process of reducing the diameter of the steel ball, and the condition that the elastic force of a spring is attenuated due to the reduction of deformation is avoided. The invention provides a grinding device for a forging steel ball aging test, which comprises a dynamic constant-pressure pre-tightening belt driving mechanism, a flexible rotating speed difference feedback mechanism, a steel ball limiting pre-tightening mechanism and a simulated striking mechanism, wherein the steel ball limiting pre-tightening mechanism can limit a steel ball body and can keep the tensioning degree of a feedback toothed belt body, the dynamic constant-pressure pre-tightening belt driving mechanism is arranged on the steel ball limiting pre-tightening mechanism, the flexible rotating speed difference feedback mechanism can pre-tighten the steel ball body through the dynamic constant-pressure pre-tightening belt driving mechanism, the laminating pressure of the flexible rotating speed difference feedback mechanism to the steel ball body is kept, the pre-tightening force is prevented from being attenuated in the process of reducing the diameter of the steel ball body, the flexible rotating speed difference feedback mechanism is arranged on the steel ball limiting pre-tightening mechanism, the friction force change of the surface of a steel ball seat can be fed back through the flexible rotating speed difference feedback mechanism, so that the roughness condition of the surface of the steel ball body is known, the simulated striking mechanism is arranged on the steel ball limiting pre-tightening mechanism, the simulated striking mechanism can simulate the mutual striking between materials and the steel ball body, and the force applied to the steel ball body to drive the steel ball body to rotate longitudinally. Further, the dynamic constant-pressure pre-tightening type belt driv