High-temperature vacuum resistance furnace for machining bearing outer ring

Abstract

The utility model relates to the technical field of bearing outer ring machining, in particular to a high-temperature vacuum resistance furnace for bearing outer ring machining, which comprises a furnace body, a furnace support arranged at the lower end of the furnace body, a control box arranged on the furnace support, a heating plate and a temperature control probe arranged on the furnace body, a sliding rail seat arranged on the inner wall of the furnace body, a sliding rail groove arranged on the sliding rail seat, and a sliding rail groove arranged on the sliding rail groove. The furnace body is provided with a vacuum suction device, the vacuum suction device is connected with a three-way pipe, the three-way pipe is connected with a main air suction pipe, the main air suction pipe is connected with an auxiliary air suction pipe, the auxiliary air suction pipe is provided with an air suction plate, the furnace body is provided with a furnace door, and the furnace door is provided with a magnetic suction sealing strip. And a blocking frame and an object placing block are arranged on the placing tray. The vacuumizing efficiency of the high-temperature vacuum resistance furnace for machining the bearing outer ring is improved, and the flexible usability of the placing disc in the high-temperature vacuum resistance furnace for machining the bearing outer ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing outer ring processing, in particular to a high-temperature vacuum resistance furnace for processing bearing outer rings. Background Art

[0002] The outer ring of the bearing is a component of the rolling bearing. It usually refers to the annular component located outside the rolling element. The function of the outer ring of the bearing is to support the rolling element and, together with the inner ring of the bearing, determine the radial and axial load-bearing capacity of the bearing.

[0003] The outer ring of the bearing generally needs to be heat treated after processing and forming. Heat treatment can change the metallographic structure of the outer ring of the bearing, thereby improving its surface hardness and wear resistance. The outer ring of the bearing is generally heat treated in a high-temperature vacuum resistance furnace.

[0004] The specific usage is to first place the outer ring of the bearing in the furnace body, then close the furnace door, then evacuate the furnace body, and finally heat it to the required high temperature and keep the outer ring of the bearing in the constant temperature and high temperature environment for a period of time to achieve heat treatment.

[0005] At present, the existing high-temperature vacuum resistance furnace for processing bearing outer rings generally uses a single suction pipe to perform the vacuum operation when evacuating the furnace body. This method is relatively slow and greatly reduces the efficiency of vacuuming the high-temperature vacuum resistance furnace for processing bearing outer rings.

[0006] In addition, after the heat treatment is completed and cooling is completed, the staff will take the placement tray out of the furnace body. However, in the existing high-temperature vacuum resistance furnace for processing bearing outer rings, the placement tray is mostly inconvenient to take out from the furnace body and move to the required position later, which greatly reduces the flexibility of the placement tray in the high-temperature vacuum resistance furnace for processing bearing outer rings.

[0007] The above problems are widespread and urgently need improvement. Utility Model Content

[0008] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a high-temperature vacuum resistance furnace for machining bearing outer rings.

[0009] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0010] A high-temperature vacuum resistance furnace for processing bearing outer rings is designed, comprising a furnace body, a furnace bracket being provided at the lower end of the furnace body, a control box being provided on the furnace bracket, a heating plate and a temperature control probe being provided on the furnace body, a slide rail seat being provided on the inner wall of the furnace body, a slide rail groove being provided on the slide rail seat, a placement plate being slidably connected in the slide rail groove, a gripping handle and a moving guide wheel being provided on the placement plate, a vacuum suction device being provided on the furnace body, a three-way pipe being connected to the vacuum suction device, a main suction pipe being connected to the three-way pipe, an auxiliary suction pipe being connected to the main suction pipe, an suction plate being provided on the auxiliary suction pipe, a furnace door being provided on the furnace body, a magnetic seal being provided on the furnace door, and a baffle frame and a placement block being provided on the placement plate.

[0011] Furthermore, there are two main air intake pipes that are symmetrical on the left and right, and each of the main air intake pipes is connected to two auxiliary air intake pipes, and the auxiliary air intake pipes pass through the furnace body horizontally.

[0012] Furthermore, the air intake plate has a hollow cavity therein and is communicated with the inner cavity of the auxiliary air intake pipe, and the air intake plate as a whole is a long rectangular structure.

[0013] Furthermore, the slide rail seats are two symmetrical ones, the movable guide wheels are two symmetrical ones, each group has two longitudinally arranged ones, and the slide rail seats are longitudinally slidably connected with the movable guide wheels through the slide rail grooves.

[0014] Furthermore, there are two handles, which are symmetrically arranged at the front end of the placement tray, and the top-view cross-section of the baffle is a square frame structure.

[0015] Furthermore, the storage block is a disc-shaped structure as a whole, and the storage blocks are arranged in three groups in a transverse direction, with three storage blocks in each group arranged in a longitudinal direction. The top surface of the storage block is provided with a damping and anti-slip layer.

[0016] Furthermore, a protective net is provided on the air suction plate. The protective net is a stainless steel mesh structure and is arranged at the inner opening of the air suction plate.

[0017] The utility model proposes a high-temperature vacuum resistance furnace for machining bearing outer rings, which has the following beneficial effects:

[0018] 1. The utility model arranges a vacuum aspirator with a three-way pipe at the top of the furnace body, connects a main suction pipe to the three-way pipe, and then arranges a secondary suction pipe structure with a suction plate on the main suction pipe, so as to realize simultaneous vacuum suction of two groups of left and right symmetrical groups on the furnace body, thereby improving the vacuuming efficiency of the high-temperature vacuum resistance furnace for bearing outer ring processing as a whole.

[0019] 2. The utility model provides a gripping handle and a movable guide wheel structure on the placement tray, and provides a slide rail seat with a matching slide rail groove on the furnace body. After the heat treatment is completed and the cooling is completed, the staff can wear high-temperature resistant gloves and hold the gripping handle to conveniently slide the placement tray out of the furnace body and then move the placement tray to the required position by the movable guide wheel, which greatly improves the flexibility of the placement tray in the high-temperature vacuum resistance furnace for bearing outer ring processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of the placement tray of the present invention in a state where it is not slidably inserted into the furnace body;

[0021] Figure 2 This is a three-dimensional schematic diagram of the state where the placement tray of the present invention has been slidably inserted into the furnace body;

[0022] Figure 3 For the utility model Figure 2 A partial enlarged view of the M in the middle;

[0023] Figure 4 For the utility model Figure 1 A three-dimensional schematic diagram of a placement tray with a handle and a movable guide wheel structure;

[0024] Figure 5 It is a front view cross-sectional view of the overall structure of the utility model.

[0025] In the figure: 1 furnace body; 11 heating plate; 12 temperature control probe; 2 furnace bracket; 21 control box; 3 vacuum aspirator; 31 three-way pipe; 32 main suction pipe; 33 auxiliary suction pipe; 34 suction plate; 35 protective net; 4 furnace door; 41 magnetic seal; 5 placement plate; 51 grip handle; 52 moving guide wheel; 53 stop frame; 6 storage block; 61 damping and anti-slip layer; 7 slide rail seat; 71 slide rail groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-5A high-temperature vacuum resistance furnace for processing bearing outer rings includes a furnace body 1, a furnace bracket 2 is provided at the lower end of the furnace body 1, a control box 21 is provided on the furnace bracket 2, a heating plate 11 and a temperature control probe 12 are provided on the furnace body 1, a slide rail seat 7 is provided on the inner wall of the furnace body 1, a slide rail groove 71 is provided on the slide rail seat 7, a placement plate 5 is slidably connected in the slide rail groove 71, a grip handle 51 and a movable guide wheel 52 are provided on the placement plate 5, a vacuum suction device 3 is provided on the furnace body 1, and three vacuum suction devices are connected to the vacuum suction device 3. The through pipe 31, the three-way pipe 31 is connected to the main suction pipe 32, the main suction pipe 32 is connected to the auxiliary suction pipe 33, the auxiliary suction pipe 33 is provided with an suction plate 34, the furnace body 1 is provided with a furnace door 4, the furnace door 4 is provided with a magnetic seal 41, the placement plate 5 is provided with a baffle 53 and a placement block 6, the heating plate 11, the temperature control probe 12, the control box 21, and the vacuum aspirator 3 are the relevant structures of the high-temperature vacuum resistance furnace, which are existing technologies. Some existing structures are not drawn and marked, and there is no need to repeat them.

[0028] The furnace body 1 is a high-temperature vacuum resistance furnace for processing the bearing outer ring. It is a prior art. Some existing structures are not drawn and marked and need not be described in detail.

[0029] After closing the oven door 4, the magnetic seal 41 is a refrigerator-type magnetic seal structure, which is a prior art and can stably block the placement tray 5 to prevent the placement tray 5 from sliding out, while ensuring the sealing of the oven body 1 to avoid air leakage.

[0030] There are two main suction pipes 32 symmetrical on the left and right. Each main suction pipe 32 is connected to two auxiliary suction pipes 33. The auxiliary suction pipes 33 pass through the furnace body 1 horizontally, realizing symmetrical vacuum suction inside the furnace body 1 at the same time, with high efficiency.

[0031] The air suction plate 34 has a hollow cavity therein and is connected to the inner cavity of the auxiliary air suction pipe 33 . The air suction plate 34 is a long rectangular structure as a whole, which further increases the effective range of vacuum suction.

[0032] There are two symmetrical slide rail seats 7, and two symmetrical groups of movable guide wheels 52, each group of which is two arranged longitudinally. The slide rail seats 7 are longitudinally slidably connected with the movable guide wheels 52 through the slide rail grooves 71. The movable guide wheels 52 are directional movable wheels, which can realize the stable guidance and rotation of the placement tray 5 into the slide rail grooves 71 through the symmetrical movable guide wheels 52.

[0033] At the same time, the movable guide wheel 52 can also realize the convenient movement effect of the placement tray 5.

[0034] There are two handles 51 symmetrically arranged at the front end of the placement tray 5 . The top cross-section of the retaining frame 53 is a square frame structure, which can prevent foreign objects from the side from colliding with the outer ring of the bearing on the placement block 6 when the placement tray 5 is moved.

[0035] The baffle 53 and the placement plate 5 are both made of aluminum alloy, which can quickly conduct heat to the high temperature in the furnace body 1, thereby ensuring the heat treatment effect on the bearing outer ring.

[0036] The storage block 6 is a disc-shaped structure as a whole. The storage block 6 is divided into three groups arranged horizontally, and each group consists of three blocks arranged vertically. The outer ring of the bearing can be directly and stably placed on the storage block 6, and nine outer rings of the bearing can be heat treated at the same time, further improving efficiency.

[0037] The top surface of the storage block 6 is provided with a damping and anti-slip layer 61. The damping and anti-slip layer 61 is a PTFE polytetrafluoroethylene coating with excellent damping and anti-slip properties, which improves the anti-slip properties of the outer ring of the bearing placed on the top of the storage block 6. At the same time, the PTFE polytetrafluoroethylene coating also has excellent high temperature resistance, and adding thermal conductive fillers to the PTFE polytetrafluoroethylene coating can improve its thermal conductivity, thereby ensuring the heat treatment effect.

[0038] A protective net 35 is provided on the air intake plate 34 . The protective net 35 is a stainless steel mesh structure and is arranged at the inner opening of the air intake plate 34 . When not in use, the protective net 35 with the stainless steel mesh structure can prevent insects and rodents from entering the air intake plate 34 .

[0039] Working method: First, place the nine bearing outer rings that need heat treatment on the placement block 6, then guide the placement plate 5 to slide into the furnace body 1, then close the furnace door 4, and use the magnetic seal 41 to achieve the magnetic sealing effect of the furnace body 1, then start the vacuum suction device 3, and use two symmetrical sets of auxiliary suction pipes 33 and suction plates 34 to simultaneously vacuum the furnace body 1, thereby improving the overall efficiency of vacuuming in the high-temperature vacuum resistance furnace for bearing outer ring processing.

[0040] After the above operations are completed, the vacuum extractor 3 is stopped and the heating plate 11 is started after the vacuuming is completed. The temperature control probe 12 can monitor the temperature of the furnace body 1 in real time and transmit the temperature signal to the control box 21 in real time. When the high temperature of the furnace body 1 is constant and reaches the heat treatment temperature of the bearing outer ring, the PLC in the control box 21 will control to turn off the heating plate 11.

[0041] In addition, when the heat treatment is completed and cooling is completed, the furnace door 4 is rotated to open, and then the staff wears high-temperature resistant gloves and holds the handle 51, and then pulls it to the side, driving the movable guide wheel 52 to roll along the slide groove 71, and the placement tray 5 can be conveniently slid and guided out of the furnace body 1, and then the placement tray 5 can be conveniently moved to the required position through the movable guide wheel 52, which greatly improves the flexibility of the placement tray 5 in the high-temperature vacuum resistance furnace for bearing outer ring processing.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-temperature vacuum resistance furnace for machining bearing outer rings, comprising a furnace body (1), characterized in that: The lower end of the furnace body (1) is provided with a furnace support (2), the furnace support (2) is provided with a control box (21), the furnace body (1) is provided with a heating plate (11) and a temperature control probe (12), the inner wall of the furnace body (1) is provided with a slide rail seat (7), the slide rail seat (7) is provided with a slide rail groove (71), a placement plate (5) is slidably connected in the slide rail groove (71), the placement plate (5) is provided with a handle (51) and a movable guide wheel (52), the furnace body (1) A vacuum suction device (3) is provided on the furnace body (1), the vacuum suction device (3) is connected to a three-way pipe (31), the three-way pipe (31) is connected to a main suction pipe (32), the main suction pipe (32) is connected to an auxiliary suction pipe (33), and the auxiliary suction pipe (33) is provided with an suction plate (34). The furnace body (1) is provided with a furnace door (4), the furnace door (4) is provided with a magnetic sealing strip (41), and the placement plate (5) is provided with a blocking frame (53) and a placement block (6).

2. The high-temperature vacuum resistance furnace for machining a bearing outer ring according to claim 1, characterized in that: There are two main air intake pipes (32) symmetrically arranged on the left and right. Each main air intake pipe (32) is connected to two auxiliary air intake pipes (33), and the auxiliary air intake pipes (33) pass through the furnace body (1) transversely.

3. The high-temperature vacuum resistance furnace for machining a bearing outer ring according to claim 1, characterized in that: The air suction plate (34) has a hollow cavity inside and is communicated with the inner cavity of the auxiliary air suction pipe (33). The air suction plate (34) is a long rectangular structure as a whole.

4. The high-temperature vacuum resistance furnace for machining a bearing outer ring according to claim 1, characterized in that: The two slide rail seats (7) are symmetrical on the left and right, and the two movable guide wheels (52) are symmetrical on the left and right, with each group consisting of two longitudinally arranged ones. The slide rail seats (7) are longitudinally slidably connected to the movable guide wheels (52) through the slide rail grooves (71).

5. The high-temperature vacuum resistance furnace for machining a bearing outer ring according to claim 1, characterized in that: There are two gripping handles (51) symmetrically arranged at the front end of the placement tray (5); the top view cross section of the blocking frame (53) is a square frame structure.

6. The high-temperature vacuum resistance furnace for machining a bearing outer ring according to claim 1, characterized in that: The storage block (6) is a disc-shaped structure as a whole. The storage blocks (6) are arranged in three groups in a transverse direction, with each group consisting of three blocks arranged in a longitudinal direction. The top surface of the storage block (6) is provided with a damping anti-slip layer (61).

7. The high-temperature vacuum resistance furnace for machining a bearing outer ring according to claim 1, characterized in that: A protective net (35) is provided on the air suction plate (34). The protective net (35) is a stainless steel mesh structure and is arranged at the inner opening of the air suction plate (34).

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