Heating device of synchronizer gear sleeve

Abstract

The utility model discloses a synchronizer gear sleeve heating device which comprises a lower supporting assembly, an induction heating assembly and a gear sleeve heating supporting assembly, the induction heating assembly is located on one side of the lower supporting assembly, and the gear sleeve heating supporting assembly is matched with the lower supporting assembly. The gear sleeve lifting and supporting assembly enables the gear sleeve and the gear sleeve heating and supporting assembly to be combined or separated, and the gear sleeve lifting and supporting assembly is matched with the lower supporting assembly and the gear sleeve heating and supporting assembly; the lifting pressure applying assembly is matched with the upper end face of the gear sleeve to apply pressure to the gear sleeve, and the lifting pressure applying assembly is located above the gear sleeve heating and supporting assembly; the core mold is matched with an inner hole of the gear sleeve, and a receding hole for the core mold to penetrate through is formed in the lifting pressure applying assembly. The utility model has the advantages of simple structure and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronizers, in particular to a heating device for a synchronizer gear sleeve. Background Art

[0002] Synchronizer sleeves have the characteristics of high strength, high wear resistance and high toughness. To ensure the high strength of synchronizer sleeves, they are usually press-quenched. Before press-quenching, the synchronizer sleeves are heated.

[0003] The heating device currently used is a rotary heating device, which includes a cylindrical furnace body with a cavity in the middle, the furnace body is set on the ground through a base, a circular material tray is provided in the furnace body, and a number of fan-shaped areas for placing synchronizer gear sleeves are evenly distributed on the material tray in a circle, the material tray is driven to rotate by a rotating support assembly arranged in the base, a furnace cover is provided above the furnace body, and a number of electric heating components located in the furnace body are installed under the furnace cover, the electric heating component is partially arranged on the inner side of the material tray, and the rest is arranged on the outer side of the material tray, a notch connected to the cavity is provided on the furnace body, a furnace door is provided on the notch, and an opening structure for opening the furnace door is provided on the furnace cover.

[0004] The heating device of the above structure is not only complex in structure, but also occupies a large area and is costly. Utility Model Content

[0005] The utility model provides a heating device for a synchronizer gear sleeve. The utility model has a simple structure and low cost.

[0006] The heating device of the synchronizer gear sleeve includes a lower support assembly and an induction heating assembly. The induction heating assembly is located on one side of the lower support assembly and also includes:

[0007] The gear sleeve heating support assembly cooperates with the lower support assembly;

[0008] A gear sleeve lifting support assembly that enables the gear sleeve to be combined with or separated from the gear sleeve heating support assembly, the gear sleeve lifting support assembly cooperates with the lower support assembly and the gear sleeve heating support assembly;

[0009] A lifting and pressing assembly cooperates with the upper end surface of the gear sleeve to apply pressure to the gear sleeve, and the lifting and pressing assembly is located above the gear sleeve heating support assembly;

[0010] A core mold cooperates with the inner hole of the gear sleeve, and the lifting and pressing component is provided with a clearance hole for the core mold to pass through.

[0011] In this utility model, the lower end face of the gear sleeve is supported by the sleeve heating support assembly, while the upper end face of the sleeve is supported by the lifting and pressing assembly. This clamps the sleeve between the sleeve heating support assembly and the lifting and pressing assembly, thus preventing warping of the upper and lower end faces of the sleeve during heating. Furthermore, the core mold cooperates with the inner hole of the sleeve to prevent deformation of the inner hole. This utility model consists of several simple components, resulting in a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a cross-sectional view of the heating device for the synchronizer sleeve.

[0013] Figure 2 A perspective view of a portion of a heating device for a synchronizer sleeve.

[0014] Figure 3 A perspective view of the support and positioning components.

[0015] Symbols in the accompanying drawings:

[0016] Bottom plate 1, first through hole 1a, fixing seat 2, induction heating coil 3, first lifting drive unit 4, first lifting driver 4a, guide rail 4b, mounting seat 5, support block 6, make way groove 7, second lifting drive unit 8, support 9, connecting seat 9a, connecting block 10, positioning block 11, positioning pin 12, lifting seat 13, upper pressure seat 14, lifting drive component 15, core mold body 16, heat dissipation hole 16a, gear sleeve A. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0020] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0022] like Figures 1 to 3 As shown, the heating device of the synchronizer gear sleeve of the present invention includes a lower support assembly, an induction heating assembly, a gear sleeve heating support assembly, a gear sleeve lifting support assembly, a lifting pressure assembly, and a core mold. Each part is described in detail below.

[0023] The lower support assembly includes a base plate 1 and a fixing seat 2. One end of the fixing seat 2 is fixed to the base plate 1. Both the base plate 1 and the fixing seat 2 have a first through hole 1a for the gear sleeve lifting support assembly to pass through.

[0024] The induction heating assembly is located on one side of the lower support assembly and includes an induction heating coil 3 and a first lift drive unit 4. The induction heating coil 3 is connected to the first lift drive unit 4. The first lift drive unit 4 includes a first lift actuator 4a and a guide rail 4b. One end of the first lift actuator 4a is fixed to the induction heating coil 3, and the other end of the first lift actuator 4a slides in engagement with the guide rail 4b. The first lift actuator 4a consists of a slide and a lift drive component, which can be a pneumatic or hydraulic cylinder.

[0025] The gear sleeve heating support assembly cooperates with the lower support assembly and includes a mounting base 5 having a through hole and a plurality of support blocks 6. One end of the mounting base 5 cooperates with the lower support assembly. The mounting base 5 and the fixed base 2 can be fixedly connected or rotatably matched, that is, the mounting base 5 can rotate relative to the fixed base 2. For example, the mounting base 5 is connected to the fixed base 2 via a bearing, so that the mounting base 5 can rotate relative to the fixed base 2. The support blocks 6 are located at the other end of the mounting base 5. These support blocks 6 are arranged at intervals around the through hole on the mounting base 5, and a clearance groove 7 is formed between two adjacent support blocks 6.

[0026] The gear sleeve lifting support assembly enables the gear sleeve A to be combined with or separated from the gear sleeve heating support assembly, and the gear sleeve lifting support assembly cooperates with the lower support assembly and the gear sleeve heating support assembly.

[0027] The gear sleeve lifting support assembly includes a second lifting drive unit 8, a support 9, and a positioning assembly. The output end of the second lifting drive unit 8 cooperates with the support 9. There are multiple positioning assemblies, which surround and are fixed to the support 9. In the present invention, a connecting seat 9a extending radially along the circumference of the support 9 is provided on the circumference of the support 9, and the positioning assembly is connected to the connecting seat 9a.

[0028] The positioning assembly includes a connecting block 10, a positioning block 11, and a positioning pin 12. The connecting block 10 is connected to the support 9; an opening is provided on the connecting seat 9a, and the connecting block 10 is inserted into the opening on the connecting seat 9a and a connecting piece is used to fix the connecting block 1 and the connecting seat 9a into one. The connecting piece can be a shaft or a screw, etc.

[0029] The positioning block 11 extends axially along the support 9. It is used to mate with the inner hole of the gear sleeve A and is fixed to the connecting block 10. Since there are multiple positioning assemblies, there are multiple positioning blocks 11. In this embodiment, there are three positioning blocks 11. The positioning pin 12 mates with the lower end surface of the gear sleeve A. One end of the positioning pin 12 mates with the connecting block 10, and the other end of the positioning pin 12 is a free end that mates with the lower end surface of the gear sleeve A. After the gear sleeve A is mounted on these positioning blocks 11, the inner hole wall of the gear sleeve A forms a clearance fit with the outer circumference of the positioning blocks 11, and the gear sleeve A falls onto the positioning pin 12 under the action of its own weight.

[0030] The lifting and pressure assembly cooperates with the upper end surface of the gear sleeve A to apply pressure to the gear sleeve A. It is located above the gear sleeve heating support assembly. The lifting and pressure assembly includes a lifting seat 13 and an upper pressure seat 14. The upper pressure seat 14 is fixed to the lifting seat 13. Both the lifting seat 13 and the upper pressure seat 14 are provided with clearance holes for the core mold to pass through. The outer diameter of at least a portion of the upper pressure seat 14 is smaller than the inner diameter of the inner hole of the heating coil 3.

[0031] During the heating process, the core mold engages with the inner circumference of the gear sleeve A. The lifting and pressure assembly is provided with a clearance hole for the core mold to pass through. The core mold includes a lifting drive component 15 and a core mold body 16 that engages with the inner hole of the gear sleeve A. The lifting drive component 15 can be a pneumatic or hydraulic cylinder. The core mold body 16 is fixed to the lifting drive component 15 and has heat dissipation holes 16a on its circumference.

[0032] The present invention further includes a rotary drive assembly (not shown in the figure), which is connected to the gear sleeve lifting support assembly. During the heating process, the rotary drive assembly drives the gear sleeve lifting support assembly to rotate, and the gear sleeve lifting support assembly drives the support block 6 and the mounting seat 5 to rotate, so that the gear sleeve A is evenly heated.

[0033] The working process of this utility model is:

[0034] The second lift drive unit 8 drives the support 9 upward, exposing it and the positioning assembly above the upper end of the support block 6. The gear sleeve A is then positioned on the positioning block 11. Under the action of gravity, the gear sleeve A falls onto the positioning pins 12, providing support for the gear sleeve A. The second lift drive unit 8 drives the support 9 downward. Once the gear sleeve A is supported by the support block 6, the second lift drive unit 8 drives the support 9 further downward, at which point the positioning assembly separates from the gear sleeve A. The lift 13 lowers the upper press seat 14, which passes through the induction heating coil 3 and presses against the upper end surface of the gear sleeve A. The lift drive assembly 15 lowers the core mold body 16. The core mold body 16 passes through the lift 13 and upper press seat 14, then extends into the inner bore of the gear sleeve A, creating a clearance fit within the sleeve A. The first lift drive unit 4 lowers the induction heating coil 3, encircling the sleeve A. Current is applied to the induction heating coil 3, heating the sleeve A.

[0035] After heating is completed, the lifting drive component 15 drives the core mold body 16 to rise. At this time, since the upper pressure seat 14 is pressed on the gear sleeve A, even if the core mold body 16 and the gear sleeve A have an interference fit, the core mold body 16 can be smoothly pulled out of the gear sleeve A. The lifting seat 13 drives the upper pressure seat 14 to rise, and the upper pressure seat 14 is separated from the gear sleeve A. The first lifting drive unit 4 drives the induction heating coil 3 to rise, releasing the induction heating coil 3 from surrounding the gear sleeve A. The second lifting drive unit 8 drives the support 9 to rise, so that the support 9 and the positioning assembly are exposed outside the upper end of the support block 6, and at the same time, the heated gear sleeve A is pushed out. After the heated gear sleeve A is removed, it is replaced with an unheated gear sleeve A, and the above process is repeated for production.

Claims

1. The heating device of the synchronizer gear sleeve includes a lower support assembly and an induction heating assembly. The induction heating assembly is located on one side of the lower support assembly and is characterized in that: Also includes: The gear sleeve heating support assembly cooperates with the lower support assembly; a gear sleeve lifting support assembly for connecting or separating the gear sleeve (A) and the gear sleeve heating support assembly, the gear sleeve lifting support assembly cooperating with the lower support assembly and the gear sleeve heating support assembly; A lifting and pressing assembly cooperates with the upper end surface of the gear sleeve (A) to apply pressure to the gear sleeve (A), and the lifting and pressing assembly is located above the gear sleeve heating support assembly; A core mold cooperates with the inner hole of the gear sleeve (A), and the lifting and pressing component is provided with a clearance hole for the core mold to pass through.

2. The synchronizer sleeve heating device according to claim 1, characterized in that: The lower support assembly comprises a base plate (1) and a fixing seat (2), one end of the fixing seat (2) is fixed to the base plate (1), and both the base plate (1) and the fixing seat (2) have a first through hole (1a) for the gear sleeve lifting support assembly to pass through.

3. The synchronizer sleeve heating device according to claim 1, characterized in that: The induction heating assembly comprises an induction heating coil (3) and a first lifting drive unit (4), and the induction heating coil (3) is connected to the first lifting drive unit (4).

4. The synchronizer sleeve heating device according to claim 1, characterized in that: The gear sleeve heating support assembly comprises a mounting seat (5) having a through hole and a plurality of support blocks (6). One end of the mounting seat (5) cooperates with the lower support assembly, and the support block (6) is located at the other end of the mounting seat (5). The support blocks (6) are arranged at intervals around the through hole on the mounting seat (5), and a clearance groove (7) is formed between two adjacent support blocks (6).

5. The synchronizer sleeve heating device according to claim 1, characterized in that: The gear sleeve lifting support assembly comprises a second lifting drive unit (8), a support (9), and a positioning assembly. The output end of the second lifting drive unit (8) cooperates with the support (9). There are multiple positioning assemblies, which surround the support (9) and are fixed to the support (9).

6. The synchronizer sleeve heating device according to claim 5, characterized in that: A connecting seat (9a) extending radially along the support (9) is provided on the peripheral surface of the support (9), and the positioning assembly is connected to the connecting seat (9a).

7. The synchronizer sleeve heating device according to claim 5, characterized in that: Positioning components include: A connecting block (10), the connecting block (10) is connected to the support (9); A positioning block (11) matched with the inner hole of the gear sleeve (A), the positioning block (11) is fixed to the connecting block (10); A positioning pin (12) is matched with the lower end surface of the gear sleeve (A), one end of the positioning pin (12) is matched with the connecting block (10), and the other end of the positioning pin (12) is a free end matched with the lower end surface of the gear sleeve (A).

8. The synchronizer sleeve heating device according to claim 1, characterized in that: The lifting and pressing components include: Lifting seat (13); An upper pressing seat (14) is fixed to the lifting seat (13). Both the lifting seat (13) and the upper pressing seat (14) are provided with a clearance hole for the core mold to pass through.

9. The synchronizer sleeve heating device according to claim 1, characterized in that: The core mold comprises a lifting drive component (15) and a core mold body (16) matched with the inner hole of the gear sleeve (A). The core mold body (16) is fixed to the lifting drive component (15), and a heat dissipation hole (16a) is provided on the peripheral surface of the core mold body (16).

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