Bearing ring processing heat treatment device based on atmosphere protection

Abstract

The present invention discloses a bearing ring processing heat treatment device based on atmosphere protection, and specifically relates to the field of bearing heat treatment equipment, including a heating furnace, wherein the bottom inner wall of the heating furnace is provided with a push plate, and the top of the push plate is provided with a dislocation support mechanism; the present invention is to provide a structure capable of up and down dislocation on a placement rack for placing the bearing ring, that is, a plurality of trays corresponding to each other in pairs are pushed by the two sides of the gear respectively, and the gear rotates so that the trays on both sides are respectively displaced in an up and down direction, so that the positions of the bearing rings are synchronously displaced, so that the atmosphere can quickly pass through the bearing rings for protection and avoid affecting the overall heating effect of the bearing rings. At the same time, the placed bearing rings are moved downward by squeezing the pad plate to drive the internal clamping plate to clamp the bearing rings, so that the bearing rings can maintain a stable state.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing heat treatment equipment, and more specifically, to a bearing ring processing heat treatment device based on atmosphere protection. Background Art

[0002] At present, most bearing ring materials are made of high-carbon chromium bearing steel GCr15, and the heat treatment process is carbonitriding + free quenching + tempering. After the carbonitriding treatment process, the comprehensive performance of the bearing ring is good. On the premise of ensuring the high toughness inside the workpiece, the surface hardness, wear resistance and fatigue strength are improved, and the service life of the bearing is effectively improved. At the same time, nitrogen reduces the formation temperature of austenite, so the workpiece can be co-infiltrated at a lower temperature. After co-infiltrating, the workpiece can be directly quenched, overheating is not easy to occur, and the deformation of the workpiece is small.

[0003] Utility model patent CN219195098U discloses a multi-layer loading rack for heat treatment of thin-walled bearing rings, which is provided with a plurality of vertically upward rack supports on the rack base, a multi-layer partition rack is provided above the rack base, a positioning hole is provided on the edge of the partition rack, and a loading tray is placed on each partition rack. The partition rack is a rectangular flat steel frame, and the number of partition racks on each layer can be multiple; that is, it can play the role of layering, dispersion, and quantitative for the workpiece, reduce the extrusion plastic deformation of the workpiece during the heat treatment process, and the temperature uniformity and atmosphere stability around the workpiece are better;

[0004] However, although the above-mentioned patent document has the function of separating the bearing rings from each other, since it only separates the multiple bearing rings by a distance, but does not provide a structure for staggering the multiple bearing rings, a horizontal obstruction will be formed between the multiple adjacent bearing rings, resulting in that in a heating furnace with atmosphere protection, the atmosphere is blocked by the outermost bearing ring and cannot reach the bearing ring located inside in a timely and fast manner, affecting the overall heating effect of the bearing ring. At the same time, there is also a lack of a structure that can stabilize the bearing ring. When the bearing ring is pushed into the heating furnace, it is easy to have a position deviation due to shaking, and the distance between the bearing rings is too close.

[0005] In view of the above technical defects, a solution is now provided. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing ring processing heat treatment device based on atmosphere protection.

[0007] To achieve the above object, the present invention provides the following technical solution: a bearing ring processing heat treatment device based on atmosphere protection, comprising a heating furnace, a push plate is provided on the bottom inner wall of the heating furnace, and a dislocation support mechanism is provided on the top of the push plate;

[0008] The dislocation support mechanism includes a bottom pad slidably mounted on the top of the push plate, the bottom pad is arranged in a horizontal state, a plurality of support columns are fixedly mounted on the top of the bottom pad, the plurality of support columns are arranged in a vertical state, a plurality of placement racks are arranged on the outer walls of the plurality of support columns, the plurality of placement racks are arranged in a horizontal state, and the plurality of placement racks are arranged parallel to each other.

[0009] In a preferred embodiment, a plurality of trays are disposed on the top of the plurality of placement racks, the plurality of trays are disposed in a horizontal state, and the plurality of trays are disposed in pairs corresponding to each other.

[0010] In a preferred embodiment, slides are fixedly installed on both sides of the plurality of trays, two of the slides are slidably installed on the outer wall of the placement rack, the two slides are arranged in a vertical state, support springs are fixedly installed on the outer walls of the two slides, and the support springs are fixedly installed on the outer wall of the placement rack.

[0011] In a preferred embodiment, tooth plates are fixedly mounted on opposite sides of the two trays, the two tooth plates are arranged corresponding to each other, one side of the two tooth plates is commonly meshed with a gear, and the gear is arranged in a horizontal state.

[0012] In a preferred embodiment, a rotating rod is fixedly mounted on the inner wall of the gear, the rotating rod is rotatably mounted on the top of the placement rack, the rotating rod is arranged in a horizontal state, and the rotating rod is located in the middle of the two trays.

[0013] In a preferred embodiment, a lever is fixedly installed on one side of the rotating rod, the width of the lever is greater than the width of the rotating rod, the lever and the rotating rod are arranged perpendicular to each other, a limiting sleeve is provided on one side of the lever, the limiting sleeve is fixedly installed on the inner wall of the heating furnace, a sliding groove is opened on one side of the limiting sleeve, the sliding groove and the lever are arranged corresponding to each other, and the sliding groove is arranged in a spiral state.

[0014] In a preferred embodiment, a clamping mechanism is provided on the top of the two trays, and the clamping mechanism includes a pad slidably installed on the top of the two trays, the pad is arranged in a horizontal state, the pad is arranged in a circular ring shape, and clamps are slidably installed on both sides of the top of the pad, the two clamps are arranged in a vertical state, and the two clamps are arranged symmetrically with each other.

[0015] In a preferred embodiment, a push plate is hinged on one side opposite to the other of the two clamps, and the two push plates are rotatably installed on the top of the pallet. The two push plates are arranged in an inclined state, and the outer walls of the two push plates are in contact with the inner wall of the pad, and a limiting spring is fixedly installed on the outer walls of the two push plates.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention is to set a structure capable of up and down displacement on a placement rack for placing bearing rings, and a plurality of trays corresponding to each other are pushed by the two sides of the gear respectively, that is, the gears rotate so that the trays on both sides are respectively displaced in an up and down direction, so that the positions of the bearing rings are synchronously displaced, so that the atmosphere can quickly pass through the bearing rings for protection, and avoid affecting the overall heating effect of the bearing rings.

[0018] 2. The present invention also drives the internal clamping plate to clamp the bearing ring by squeezing the pad set on the tray downward through the placed bearing ring, so that the bearing ring can maintain a stable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a front view of the present invention.

[0021] Figure 3 It is the internal top view of the present invention.

[0022] Figure 4 It is a partial cross-sectional view of the present invention.

[0023] Figure 5 It is a partial cross-sectional view of the dislocation support mechanism in the present invention.

[0024] Figure 6 It is a structural schematic diagram of the clamping mechanism in the present invention.

[0025] Figure 7 It is a partial vertical cross-sectional view of the clamping mechanism in the present invention.

[0026] The accompanying drawings are marked as follows: 1. Heating furnace; 2. Sliding plate; 3. Offset supporting mechanism; 31. Bottom pad; 32. Support column; 33. Placement rack; 34. Tray; 35. Slide plate; 36. Support spring; 37. Tooth plate; 38. Gear; 39. Turn bar; 310. Push rod; 311. Limit sleeve; 312. Sliding groove; 4. Pressing and clamping mechanism; 41. Pad; 42. Clamp; 43. Pressing and pushing plate; 44. Limiting spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: In view of the fact that there is no structure for staggering the plurality of bearing rings in the prior art, a horizontal shielding will be formed between the plurality of adjacent bearing rings, resulting in that in a heating furnace with atmosphere protection, the atmosphere cannot reach the inner bearing rings in a timely and fast manner due to being shielded by the outermost bearing rings, thus affecting the overall heating effect of the bearing rings. To solve this problem, the following technical solution is proposed:

[0029] Refer to the instruction manual Figure 1-Figure 7 , bearing ring processing heat treatment device based on atmosphere protection, such as Figure 1 and Figure 2 As shown, it comprises a heating furnace 1, a push plate 2 is arranged on the bottom inner wall of the heating furnace 1, and a dislocation support mechanism 3 is arranged on the top of the push plate 2;

[0030] like Figure 2 and Figure 3 As shown, the staggered support mechanism 3 includes a bottom pad 31 slidably mounted on the top of the push plate 2, the bottom pad 31 is arranged in a horizontal state, a plurality of support columns 32 are fixedly mounted on the top of the bottom pad 31, the plurality of support columns 32 are arranged in a vertical state, a plurality of placement racks 33 are arranged on the outer walls of the plurality of support columns 32, the plurality of placement racks 33 are arranged in a horizontal state, and the plurality of placement racks 33 are arranged parallel to each other, and the plurality of placement racks 33 are driven into the heating furnace 1 by moving the bottom pad 31.

[0031] like Figure 2 and Figure 4 As shown, a plurality of trays 34 are disposed on the top of the plurality of racks 33 , the plurality of trays 34 are disposed in a horizontal state, the plurality of trays 34 are disposed in pairs corresponding to each other, and the plurality of trays 34 on the top of the plurality of racks 33 are driven synchronously.

[0032] like Figure 3 and Figure 4 As shown, slide plates 35 are fixedly installed on both sides of the multiple trays 34, and the two slide plates 35 are slidably installed on the outer wall of the placement rack 33. The two slide plates 35 are arranged in a vertical state, and support springs 36 are fixedly installed on the outer walls of the two slide plates 35. The support springs 36 are fixedly installed on the outer wall of the placement rack 33. The multiple trays 34 are supported by the slide plates 35 and the support springs 36 in a manner of corresponding to each other in pairs on the placement rack 33.

[0033] like Figure 3 and Figure 4 As shown, tooth plates 37 are fixedly installed on opposite sides of the two trays 34, and the two tooth plates 37 are arranged corresponding to each other. A gear 38 is meshed with one side of the two tooth plates 37, and the gear 38 is arranged in a horizontal state. The rotation of the gear 38 drives the tooth plates 37 on both sides to move in the upward and downward directions respectively, that is, the tooth plates 37 on both sides drive the corresponding two trays 34 to move in the upward and downward directions respectively and staggered.

[0034] like Figure 3 and Figure 4 As shown, a rotating rod 39 is fixedly installed on the inner wall of the gear 38, and the rotating rod 39 is rotatably installed on the top of the placement rack 33. The rotating rod 39 is set in a horizontal state and is located in the middle of the two trays 34. The rotating rod 39 drives the gear 38 to rotate synchronously.

[0035] like Figure 3 and Figure 4 As shown, a lever 310 is fixedly installed on one side of the rotating rod 39, the width of the lever 310 is greater than the width of the rotating rod 39, the lever 310 and the rotating rod 39 are arranged perpendicular to each other, a limiting sleeve 311 is provided on one side of the lever 310, the limiting sleeve 311 is fixedly installed on the inner wall of the heating furnace 1, a sliding groove 312 is opened on one side of the limiting sleeve 311, the sliding groove 312 and the lever 310 are arranged corresponding to each other, and the sliding groove 312 is arranged in a spiral state, then the rotating rod 39 drives the lever 310 to approach and insert into the sliding groove 312 on one side of the limiting sleeve 311, and then the lever 310 is flipped through the spiral extrusion of the sliding groove 312, that is, the lever 310 drives the rotating rod 39 to rotate.

[0036] In a specific implementation, the bottom plate 31 is moved to drive the multiple placement racks 33 into the heating furnace 1, and the rotating rods 39 on the multiple placement racks 33 are synchronously close to the limiting sleeve 311, and the rotating rod 39 drives the lever 310 to approach and insert into the sliding groove 312 on one side of the limiting sleeve 311, and then the lever 310 is turned over by the spiral squeezing of the sliding groove 312;

[0037] That is, the lever 310 drives the rotating rod 39 to rotate and makes the gear 38 rotate synchronously, and the rotation of the gear 38 drives the toothed plates 37 on both sides to move in the upward and downward directions respectively, that is, the toothed plates 37 on both sides drive the corresponding two trays 34 to move in the upward and downward directions respectively through the support of the slide plate 35 and staggered, and compress the support spring 36, so that the position of the bearing ring is synchronously staggered, so that the atmosphere can quickly pass through the bearing ring for protection, avoiding affecting the overall heating effect of the bearing ring.

[0038] Embodiment 2: In view of the fact that there is still a lack of a structure capable of stabilizing the bearing rings in the prior art, when the bearing rings are pushed into the heating furnace, the position deviation occurs due to shaking, and the distance between the bearing rings is too close. To solve this problem, the following technical solution is proposed:

[0039] like Figure 6 and Figure 7 As shown, a clamping mechanism 4 is provided on the top of the two trays 34, and the clamping mechanism 4 includes a pad 41 slidably installed on the top of the two trays 34, the pad 41 is arranged in a horizontal state, the pad 41 is arranged in a circular ring shape, and clamping plates 42 are slidably installed on both sides of the top of the pad 41, and the two clamping plates 42 are arranged in a vertical state, and the two clamping plates 42 are arranged symmetrically with each other, by placing the bearing ring on the pad 41 on the top of the two trays 34, that is, the bearing ring is pressed downward by its own weight, and at this time, the two clamping plates 42 are respectively located on both sides of the inner ring of the bearing ring.

[0040] like Figure 6 and Figure 7 As shown, the two opposite sides of the two clamps 42 are respectively hinged with push plates 43, and the two push plates 43 are rotatably installed on the top of the tray 34. The two push plates 43 are arranged in an inclined state, and the outer walls of the two push plates 43 fit together with the inner wall of the pad 41. The outer walls of the two push plates 43 are jointly fixed with limiting springs 44, and the two push plates 43 are squeezed to extend to both sides by the limiting springs 44, and then the two push plates 43 drive the clamps 42 on both sides to push to both sides respectively, so that the clamps 42 on both sides squeeze and support the two sides of the inner ring of the bearing ring so that the bearing ring maintains a stable state.

[0041] During the specific implementation, the bearing ring is placed on the pads 41 on the top of the two trays 34, that is, the bearing ring's own weight presses the pads 41 downward, and the two clamping plates 42 are respectively located on both sides of the inner ring of the bearing ring. The limit spring 44 squeezes the two push plates 43 to extend to both sides and drives the clamping plates 42 on both sides to push to both sides respectively. The clamping plates 42 on both sides squeeze and support the two sides of the inner ring of the bearing ring, so that the bearing ring maintains a stable state.

[0042] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0043] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0044] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing ring processing heat treatment device based on atmosphere protection, comprising a heating furnace (1), characterized in that: The bottom inner wall of the heating furnace (1) is provided with a push plate (2), and the top of the push plate (2) is provided with a dislocation support mechanism (3); The dislocation support mechanism (3) comprises a bottom pad (31) slidably mounted on the top of the push plate (2), the bottom pad (31) being arranged in a horizontal state, a plurality of support columns (32) being fixedly mounted on the top of the bottom pad (31), the plurality of support columns (32) being arranged in a vertical state, a plurality of placement racks (33) being arranged on the outer walls of the plurality of support columns (32), the plurality of placement racks (33) being arranged in a horizontal state, and the plurality of placement racks (33) being arranged parallel to each other; A plurality of trays (34) are provided on the top of the plurality of placement racks (33), the plurality of trays (34) are arranged in a horizontal state, and the plurality of trays (34) are arranged in pairs corresponding to each other; Slide plates (35) are fixedly mounted on both sides of the plurality of trays (34); two of the slide plates (35) are slidably mounted on the outer wall of the placement rack (33); the two slide plates (35) are arranged in a vertical state; support springs (36) are fixedly mounted on the outer walls of the two slide plates (35); and the support springs (36) are fixedly mounted on the outer wall of the placement rack (33); A toothed plate (37) is fixedly mounted on opposite sides of the two trays (34), the two toothed plates (37) are arranged corresponding to each other, a gear (38) is meshed together on one side of the two toothed plates (37), and the gear (38) is arranged in a horizontal state; A rotating rod (39) is fixedly mounted on the inner wall of the gear (38), and the rotating rod (39) is rotatably mounted on the top of the placement rack (33). The rotating rod (39) is arranged in a horizontal state, and the rotating rod (39) is located between the two trays (34); A lever (310) is fixedly mounted on one side of the rotating rod (39); the width of the lever (310) is greater than the width of the rotating rod (39); the lever (310) and the rotating rod (39) are arranged perpendicular to each other; a limiting sleeve (311) is provided on one side of the lever (310); the limiting sleeve (311) is fixedly mounted on the inner wall of the heating furnace (1); a sliding groove (312) is provided on one side of the limiting sleeve (311); the sliding groove (312) and the lever (310) are arranged corresponding to each other; and the sliding groove (312) is arranged in a spiral state; A clamping mechanism (4) is arranged on the top of the two trays (34), and the clamping mechanism (4) comprises a pad (41) slidably mounted on the top of the two trays (34), the pad (41) being arranged in a horizontal state, the pad (41) being arranged in a circular ring shape, and clamping plates (42) being slidably mounted on both sides of the top of the pad (41), the two clamping plates (42) being arranged in a vertical state, and the two clamping plates (42) being arranged symmetrically with each other; A push plate (43) is hingedly connected to one side opposite to the two clamping plates (42). The two push plates (43) are rotatably mounted on the top of the tray (34). The two push plates (43) are arranged in an inclined state. The outer walls of the two push plates (43) are in contact with the inner wall of the pad (41). A limit spring (44) is fixedly mounted on the outer walls of the two push plates (43).

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