Annealing furnace for producing and forging bearing sleeve

Abstract

The utility model discloses an annealing furnace for producing and forging a bearing bush, which relates to the field of bearing bush production and comprises a base, a furnace body is mounted on the base, one end of the furnace body is provided with an opening, the other end of the furnace body is rotatably connected with a driving shaft, the driving shaft extends into the furnace body and is connected with an insertion opening, and the opening is of a rectangular structure. A round notch is formed in the middle of the furnace body, two oppositely-arranged frames are connected into the furnace body in a sliding mode, the two ends of the two frames are spliced to form a cylindrical structure, the cylindrical structure at one end of each frame is in a bell mouth shape matched with an insertion opening, and the cylindrical structure at the other end of each frame is fixedly connected with a pull ring. The cylindrical structures at the two ends of the frame are sleeved with fixing rings, and a driving structure enabling the driving shaft to rotate is arranged on the base. According to the utility model, the frame structure is in a rotating state in the annealing process of the bearing sleeves, so that all the bearing sleeves in the frame structure can be heated and cooled more uniformly in the annealing process.

Description

Technical Field

[0001] The utility model relates to the field of bearing sleeve production, in particular to an annealing furnace for forging bearing sleeve production. Background Art

[0002] The bearing sleeve is an annular part of a radial rolling bearing with one or more raceways. During the production process of the bearing ring, it needs to undergo an annealing process, so an annealing furnace is required.

[0003] The existing annealing furnace for bearing sleeve production is generally provided with a support frame for supporting the bearing sleeve. After the bearing sleeve to be annealed is placed on the support frame, the support frame is pushed into the annealing furnace for annealing. After the bearing sleeve is heated to a preset temperature, in order to ensure uniform heating of the bearing sleeve, it is generally necessary to turn the bearing sleeve on the support frame over and then send it into the annealing furnace for heating. After heating to the preset temperature, it is cooled at a set cooling rate.

[0004] With respect to the above-mentioned related technologies, when the existing annealing furnace processes the bearing sleeve, the bearing sleeve is placed on a support frame in the annealing furnace. If the bearing sleeve is to be turned over, it needs to be taken out of the annealing furnace, which seriously affects the heat treatment efficiency of the annealing furnace on the bearing sleeve and is prone to unnecessary risks in the turning process. In addition, during the cooling process of the annealing furnace, the cooling gas is not easy to diffuse evenly into the furnace body of the annealing furnace, which is easy to cause uneven temperature reduction in the annealing furnace, thereby causing uneven annealing treatment of the same batch of bearing sleeves. In summary, it is difficult for the existing annealing furnace for bearing sleeve production and forging to perform a uniform annealing process on the bearing sleeve. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an annealing furnace for forging a bearing sleeve production, so as to solve the technical problem that the existing annealing furnace for forging a bearing sleeve production is difficult to perform a uniform annealing process on the bearing sleeve.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an annealing furnace for forging bearing sleeves, comprising a base, a furnace body is installed on the base, an opening is provided at one end of the furnace body, and a drive shaft is rotatably connected to the other end, the drive shaft extends into the interior of the furnace body and is connected to a socket, the opening is a rectangular structure, and a circular notch is provided in the middle, two relatively arranged frames are slidably connected in the furnace body, the two ends of the two frames are spliced ​​to form a cylindrical structure, the cylindrical structure at one end of the frame is in the shape of a socket that matches the socket, and the cylindrical structure at the other end is fixedly connected with a pull ring, the cylindrical structures at both ends of the frame are both sleeved with fixing rings, and a driving structure for rotating the drive shaft is provided on the base.

[0007] By adopting the above technical solution, the bearing sleeves are evenly distributed in the frame structure, and a receiving socket structure that matches the frame structure is provided inside the furnace body. During the annealing process of the bearing sleeves, the frame structure is kept in a rotating state, thereby enabling all the bearing sleeves in the frame structure to be heated and cooled more evenly during the annealing process.

[0008] The utility model is further configured that the inner wall of the furnace body is fixedly connected with mutually parallel fixing bars, the fixing bars are slidably connected with guide bars along the diameter direction of the furnace body, and the top surface of the guide bar can contact the bottom surface of the horizontal state frame.

[0009] By adopting the above technical solution, the frame can be inserted into the furnace body more stably.

[0010] The utility model is further configured that both ends of the guide bar pass through the furnace body, and a slide groove is provided at one end of the furnace body close to the opening, and the part of the guide bar passing through the furnace body is slidably connected in the slide groove.

[0011] By adopting the above technical solution, it can slide more easily along the diameter direction of the furnace body.

[0012] The utility model is further configured such that after the guide bar slides toward the inner wall of the furnace body, the frame does not contact the guide bar.

[0013] By adopting the above technical solution, it is prevented that the guide bar affects the normal rotation of the frame.

[0014] The utility model is further configured that the frame is provided with placement tables for carrying the bearing sleeves, the depth of the placement tables on the frame is less than half of the height of the bearing sleeves, and two opposite placement tables will not contact each other.

[0015] By adopting the above technical solution, the stable placement of the bearing sleeve in the rotating state of the frame is effectively guaranteed.

[0016] The utility model is further configured that a plurality of bosses higher than the bottom surface of the placement table are arranged inside the placement table.

[0017] By adopting the above technical solution, the uniformity of heating of the bearing sleeve is further improved.

[0018] The utility model is further configured that the base is provided with a driving motor below the driving shaft, and a transmission belt is connected between the output shaft of the driving motor and the driving shaft.

[0019] By adopting the above technical solution, the bearing sleeves stored on the frame can be evenly heated and cooled during the annealing process.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model evenly distributes the bearing sleeves in the frame structure by arranging a closed frame structure facing each other, and arranges a receiving socket structure matching the frame structure inside the furnace body. After the frame structure is inserted into the furnace body, a driving motor and a transmission belt are used to realize uniform rotation of the frame structure, and the frame structure is kept in a rotating state during the annealing process of the bearing sleeves, so that all the bearing sleeves in the frame structure can be heated and cooled more evenly during the annealing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 For the utility model Figure 1 A magnified view of middle;

[0024] Figure 3 It is another perspective stereogram of the utility model;

[0025] Figure 4 This is a three-dimensional diagram of the internal structure of the furnace body of the utility model;

[0026] Figure 5 It is an exploded view of the framework structure of the utility model;

[0027] Figure 6 For the utility model Figure 5 Enlarged view of middle B;

[0028] Figure 7 This is an exploded view of the framework structure of the utility model from another perspective.

[0029] In the figure: 1. base; 2. furnace body; 3. frame; 4. opening; 5. socket; 6. socket; 7. pull ring; 8. fixing ring; 9. placement table; 10. boss; 11. fixing bar; 12. guide bar; 13. slide groove; 14. drive shaft; 15. drive motor; 16. air interface. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0031] The following describes an embodiment of the utility model based on its overall structure.

[0032] Embodiment 1

[0033] An annealing furnace for forging bearing sleeves, such as Figure 1-7As shown, it includes a base 1, on which a furnace body 2 is installed. Specifically, a heating pipe is arranged inside the furnace body 2, and an air interface 16 is arranged at the top, wherein the heating pipe is used to increase the temperature inside the furnace body 2, and an air source connected to the air interface 16 can blow air into the furnace body 2 to reduce the temperature inside the furnace body 2. An opening 4 is arranged at one end of the furnace body 2, and a driving shaft 14 is rotatably connected at the other end. The driving shaft 14 extends into the interior of the furnace body 2 and is connected to a socket 5. The opening 4 is a rectangular structure, and a circular notch is arranged in the middle. One end of the frame structure can be rotatably connected to the circular notch, and the furnace body 2 slides inside. The dynamic connection has two relatively arranged frames 3, and the two ends of the two frames 3 are spliced ​​to form a cylindrical structure. The cylindrical structure at one end of the frame 3 is in the shape of a socket 6 that matches the socket 5. Specifically, the socket 5 and the socket 6 can transmit torque after being plugged into and matched with each other, and the cylindrical structure at the other end is fixedly connected with a pull ring 7, which can facilitate the pulling out of the frame structure. The cylindrical structures at both ends of the frame 3 are both sleeved with fixed rings 8. Specifically, the fixed rings 8 are sleeved on the two ends of the two frames 3, which can prevent the two frames 3 from being separated. A driving structure for rotating the driving shaft 14 is provided on the base 1.

[0034] See also Figure 4-7 , the frame 3 is arranged with placement tables 9 for carrying the bearing sleeve. The depth of the placement tables 9 on the frame 3 is less than half of the height of the bearing sleeve. The two opposite placement tables 9 will not contact each other. The bearing sleeve can be stored in two oppositely arranged placement tables 9, which effectively ensures the stable placement of the bearing sleeve when the frame 3 is rotating. The bearing sleeve can be stored in two oppositely arranged placement tables 9, which effectively ensures the stable placement of the bearing sleeve when the frame 3 is rotating. The boss 10 can effectively reduce the contact area between the bearing sleeve and the inner wall of the placement table 9, further improving the uniformity of heat rise of the bearing sleeve.

[0035] See also Figure 1-3 The base 1 is provided with a driving motor 15 below the driving shaft 14, and a transmission belt is connected between the output shaft of the driving motor 15 and the driving shaft 14. The driving motor 15 cooperates with the transmission belt to realize the transmission of the driving shaft 14. When the driving motor 15 is working, the frame 3 can be rotated, so that the bearing sleeve stored on the frame 3 can be evenly heated and cooled during the annealing process.

[0036] Embodiment 2

[0037] An annealing furnace for forging bearing sleeves, such as Figure 1-7As shown, on the basis of embodiment one, the difference from embodiment one lies in that the inner wall of the furnace body 2 is fixedly connected with mutually parallel fixing bars 11, and the fixing bars 11 are slidably connected with guide bars 12 along the diameter direction of the furnace body 2, and the top surface of the guide bar 12 can contact the bottom surface of the horizontal state frame 3. The inner wall of the furnace body 2 is fixedly connected with mutually parallel fixing bars 11, and the fixing bars 11 are slidably connected with guide bars 12 along the diameter direction of the furnace body 2, and the top surface of the guide bar 12 can contact the bottom surface of the horizontal state frame 3.

[0038] See also Figure 1-4 Both ends of the guide bar 12 pass through the furnace body 2. A slide groove 13 is provided at one end of the furnace body 2 close to the opening 4. The part of the guide bar 12 that passes through the furnace body 2 is slidably connected in the slide groove 13. The slide groove 13 structure guides the sliding of the guide bar 12, so that it can slide more easily along the diameter direction of the furnace body 2. After the guide bar 12 slides toward the inner wall of the furnace body 2, the frame 3 does not contact the guide bar 12, so as to prevent the guide bar 12 from affecting the normal rotation of the frame 3.

[0039] The working principle of the utility model is as follows: the bearing sleeves to be annealed are placed one by one on the placement table 9 of one of the frames 3, and then another frame 3 is covered and fixing rings 8 are sleeved on both ends of the two frames 3, and the end of the frame 3 with the socket 6 is inserted into the furnace body 2, and the guide strip 12 in the furnace body 2 supports the two sides of the frame 3, and the socket 6 at one end of the frame 3 is stably connected with the socket 5 in the furnace body 2. At this time, the end of the frame 3 away from the socket 6 is rotatably connected to the inner wall of the furnace body 2, and then the guide strip 12 is slid to both sides to make the guide strip 12 leave the rotation path of the frame 3, and the driving motor 15 works through the transmission belt to realize the uniform rotation of the frame 3, and with the cooperation of the heating component and the cooling component in the furnace body 2, the heating and cooling of the bearing sleeve in the frame 3 are evenly and stably realized.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An annealing furnace for forging a bearing sleeve, comprising a base (1), a furnace body (2) being mounted on the base (1), characterized in that: An opening (4) is provided at one end of the furnace body (2), and a driving shaft (14) is rotatably connected to the other end. The driving shaft (14) extends into the interior of the furnace body (2) and is connected to a socket (5). The opening (4) is a rectangular structure, and a circular notch is provided in the middle. Two frames (3) arranged opposite to each other are slidably connected inside the furnace body (2). The two ends of the two frames (3) are spliced ​​to form a cylindrical structure. The cylindrical structure at one end of the frame (3) is in the shape of a socket (6) matching the socket (5), while the cylindrical structure at the other end is fixedly connected to a pull ring (7). The cylindrical structures at both ends of the frame (3) are both sleeved with fixing rings (8). A driving structure for rotating the driving shaft (14) is provided on the base (1).

2. The annealing furnace for forging bearing sleeves according to claim 1, characterized in that: The inner wall of the furnace body (2) is fixedly connected with mutually parallel fixing bars (11), and the fixing bars (11) are slidably connected with guide bars (12) along the diameter direction of the furnace body (2), and the top surface of the guide bar (12) can contact the bottom surface of the horizontal state frame (3).

3. The annealing furnace for forging bearing sleeves according to claim 2, characterized in that: Both ends of the guide bar (12) pass through the furnace body (2); a slide groove (13) is provided at one end of the furnace body (2) close to the opening (4); and the portion of the guide bar (12) that passes through the furnace body (2) is slidably connected in the slide groove (13).

4. The annealing furnace for forging bearing sleeves according to claim 2, characterized in that: After the guide bar (12) slides toward the inner wall of the furnace body (2), the frame (3) and the guide bar (12) do not come into contact.

5. The annealing furnace for forging bearing sleeves according to claim 1, characterized in that: The frame (3) is provided with placement tables (9) for carrying the bearing sleeves, the depth of the placement tables (9) on the frame (3) is less than half the height of the bearing sleeves, and two opposite placement tables (9) will not contact each other.

6. The annealing furnace for forging bearing sleeves according to claim 5, characterized in that: The placement platform (9) is provided with a plurality of bosses (10) which are higher than the bottom surface of the placement platform.

7. The annealing furnace for forging bearing sleeves according to claim 1, characterized in that: The base (1) is provided with a driving motor (15) below the driving shaft (14), and a transmission belt is connected between the output shaft of the driving motor (15) and the driving shaft (14).

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