Motor transmission mechanism and drying oven

Abstract

The utility model provides a motor transmission mechanism and a drying oven. The motor transmission mechanism comprises a fixing flange, a motor module and a limiting pin, and the fixing flange is installed on the outer box wall of a box body; the motor module is located on the side, away from the box body, of the fixing flange, and a transition flange is installed on the motor module and used for allowing the transmission shaft to stretch into the motor module from the transition flange so that the motor module can be in dynamic coupling connection with the transmission shaft. The limiting pin extends in the axial direction of the transmission shaft, the two ends of the limiting pin are connected with the fixing flange and the transition flange respectively, and rotation of the motor module relative to the box body is limited through the limiting pin. The motor module and the box body are fixed through the fixing flange, the transition flange and the limiting pin, the motor module can be effectively prevented from rotating along with the transmission shaft, the motor module can be prevented from being blocked or pinned due to direct connection of the motor module and the box body, the motor module is prevented from being damaged, and the service life of the motor module is prolonged. And the installation precision and the operation stability of the motor module are improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of automated production equipment, and in particular to a motor transmission mechanism and an oven. Background Art

[0002] In automated production equipment, it is common to install a motor transmission structure at one end of the cantilever shaft. In the prior art, an I-shaped flange is used, one end of which is connected to the sheet metal box of the equipment, and the other end is connected to the reduction motor, so that the reduction motor and the box are connected as a whole. During the operation of the equipment, the reduction motor often rotates with the shaft; and the box is a sheet metal part, and the flatness and strength of the sheet metal part make it difficult to ensure the installation accuracy of the parts, which can easily cause the reduction motor to jam or freeze during operation, thereby causing an alarm and affecting the normal production of the equipment. Utility Model Content

[0003] The purpose of the embodiments of the utility model is to provide a motor transmission mechanism and an oven, aiming to solve the problem that the reduction motor of the existing motor transmission mechanism rotates with the shaft and is prone to jamming or freezing during operation.

[0004] In order to solve the above technical problems, the embodiment of the utility model provides a motor transmission mechanism, comprising:

[0005] A fixing flange, which is mounted on the outer wall of the box body and is used for allowing one end of the transmission shaft to extend from the fixing flange to the outside of the box body;

[0006] A motor module, the motor module is located on a side of the fixed flange away from the housing, a transition flange is installed on the motor module, the transition flange and the fixed flange are spaced apart and opposite to each other in the axial direction of the transmission shaft, and is used for allowing one end of the transmission shaft located outside the housing to extend from the transition flange into the motor module, so that the motor module is dynamically coupled to the one end of the transmission shaft located outside the housing;

[0007] A limit pin is provided to extend along the axial direction of the transmission shaft, and two ends of the limit pin are respectively connected to the fixing flange and the transition flange, so that the motor module is limited to rotate relative to the box body through the limit pin.

[0008] The motor module of the utility model is fixed to the housing by means of a fixing flange, a transition flange and a limit pin, which can not only effectively prevent the motor module from rotating along with the transmission shaft, but also prevent the motor module from being stuck or stuck due to direct connection with the housing, thereby avoiding damage to the motor module and improving the installation accuracy and operation stability of the motor module.

[0009] Preferably, a first limiting groove is arranged on the end surface of the fixing flange close to the transition flange, and one end of the limiting pin close to the fixing flange extends into the first limiting groove.

[0010] Preferably, the first limiting groove passes through the end surface of the fixing flange away from the transition flange.

[0011] Preferably, the first limiting groove passes through the peripheral side surface of the fixing flange.

[0012] Preferably, the first limit groove is extended in the up and down directions, the upper end of the first limit groove passes through the peripheral side surface of the fixing flange, the lower end of the first limit groove abuts the limit pin, and the lower end of the first limit groove is adapted to the shape of one end of the limit pin close to the fixing flange.

[0013] Preferably, a second limiting groove is arranged on the end surface of the transition flange close to the fixed flange, and one end of the limiting pin close to the transition flange extends into the second limiting groove.

[0014] Preferably, one end of the limiting pin close to the transition flange is adapted to the shape of the second limiting groove.

[0015] Preferably, the second limiting groove passes through the end surface of the transition flange away from the fixed flange.

[0016] Preferably, a box flange is provided on the outer box wall of the box, the fixing flange is butted against one end of the box flange close to the motor module, and the fixing flange and the box flange are detachably connected.

[0017] Preferably, the fixing flange is fixedly connected to the box flange via a first screw connection.

[0018] Preferably, the box flange is welded and fixed to the outer box wall of the box.

[0019] Preferably, the motor module includes a reducer, and one end of the transmission shaft located outside the housing is dynamically coupled to the reducer.

[0020] Preferably, a second screw connection member is installed on the motor module, and a tail portion of the second screw connection member extends into the motor module and is threadedly connected to an end surface of the transmission shaft away from the box body.

[0021] Preferably, a limit key is provided between the transmission shaft and the motor module so as to limit the transmission shaft and the motor module in the circumferential direction of the transmission shaft via the limit key.

[0022] In order to achieve the above object, the utility model also provides an oven, comprising the above motor transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 A schematic diagram of the structure of the motor transmission mechanism provided by an embodiment of the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the junction between the motor transmission mechanism and the transmission shaft;

[0026] Figure 3 for Figure 1 A cross-sectional view of the junction between the motor transmission mechanism and the transmission shaft;

[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the fixed flange;

[0028] Figure 5 for Figure 1 Schematic diagram of the structure of the middle transition flange.

[0029] Description of the figures of the utility model:

[0030] Motor transmission mechanism 100, fixing flange 1, first limiting groove 11, motor module 2, reducer 21, second screw connection 22, end cover 23, gasket 24, spring clip 25, transition flange 3, second limiting groove 31, limiting pin 4, limiting key 5, box body 200, box body flange 210, transmission shaft 300.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] The utility model provides a motor transmission mechanism, which can be used in automated production equipment such as ovens. The following will take the motor transmission mechanism used in a lifting gate device of an oven as an example for introduction. Figures 1 to 5 A preferred embodiment of the motor transmission mechanism provided by the utility model is shown.

[0036] See also Figures 1 to 3 In this embodiment, the motor transmission mechanism 100 includes a fixed flange 1, a motor module 2, a transition flange 3 and a limit pin 4. The fixed flange 1 is installed on the outer box wall of the box body 200, and is used for allowing one end of the transmission shaft 300 to extend from the fixed flange 1 to the outside of the box body 200; the motor module 2 is located on the side of the fixed flange 1 away from the box body 200, and a transition flange 3 is installed on the motor module 2. The transition flange 3 and the fixed flange 1 are spaced opposite to each other in the axial direction of the transmission shaft 300, and are used for allowing one end of the transmission shaft 300 located outside the box body 200 to extend from the transition flange 3 into the motor module 2, so that the motor module 2 and the end of the transmission shaft 300 located outside the box body 200 are dynamically coupled; the limit pin 4 is arranged to extend along the axial direction of the transmission shaft 300, and the two ends of the limit pin 4 are respectively connected to the fixed flange 1 and the transition flange 3, so as to limit the rotation of the motor module 2 relative to the box body 200 through the limit pin 4.

[0037] Specifically, the box body 200 is the box body of the oven, and the oven includes a lifting gate device, which includes a lifting gate (not shown in the figure) and a transmission shaft 300. The lifting gate is located in the box body 200, and the transmission shaft 300 is inserted in the box body 200. The part of the transmission shaft 300 located in the box body 200 is dynamically coupled with the lifting gate. One end of the transmission shaft 300 is located outside the box body 200 and is dynamically coupled with the motor module 2, so that the transmission shaft 300 is driven to rotate through the motor module 2, thereby driving the lifting gate to rise and fall in the box body 200 through the transmission shaft 300. The end of the transmission shaft 300 that is dynamically coupled with the motor module 2 is defined as the transmission end of the transmission shaft 300, and the transmission end of the transmission shaft 300 is located outside the box body 200.

[0038] A limiting structure is provided between the transmission end of the transmission shaft 300 and the motor module 2. The limiting structure can not only limit the transmission shaft 300 and the motor module 2 in the axial direction of the transmission shaft 300, but also limit the transmission shaft 300 and the motor module 2 in the circumferential direction of the transmission shaft 300, so that the motor module 2 is fixedly installed on the transmission end of the transmission shaft 300 through the limiting structure. The specific setting method of the limiting structure will be further described below.

[0039] The motor module 2 is located outside the box body 200, and the motor module 2 is connected to the box body 200 through a fixed flange 1, a transition flange 3 and a limit pin 4. This can not only effectively prevent the motor module 2 from rotating with the transmission shaft 300, but also prevent the motor module 2 from being directly connected to the box body 200, causing the motor module 2 to get stuck or stuck, thereby avoiding damage to the motor module 2 and improving the installation accuracy and operation stability of the motor module 2.

[0040] The motor module 2 of the utility model is fixed to the box body 200 by means of a fixing flange 1, a transition flange 3 and a limit pin 4, which can not only effectively prevent the motor module 2 from rotating along with the transmission shaft 300, but also prevent the motor module 2 from being directly connected to the box body 200, causing the motor module 2 to become stuck or stuck, thereby avoiding damage to the motor module 2 and improving the installation accuracy and operation stability of the motor module 2.

[0041] The fixing flange 1 is mounted on the outer wall of the box body 200. Figures 1 to 3 In this embodiment, a box flange 210 is provided on the outer box wall of the box 200, and the fixed flange 1 is butted with one end of the box flange 210 close to the motor module 2, and the fixed flange 1 and the box flange 210 are detachably connected.

[0042] Specifically, the box flange 210 can be fixed to the outer box wall of the box 200 by welding or other methods, the fixed flange 1 is connected to the box flange 210 on the box 200, the transmission end of the transmission shaft 300 can extend from the box flange 210 to the outside of the box 200, and the transmission end of the transmission shaft 300 can pass through the fixed flange 1. Among them, the box flange 210 can be a circular flange with a mounting circular hole, etc.

[0043] Since the fixed flange 1 and the box flange 210 are detachably connected, the fixed flange 1, the motor module 2, the transition flange 3, the limit pin 4, and the transmission shaft 300 can be assembled into a module first, and then passed through the box 200 from the box flange 210, and then the fixed flange 1 and the box flange 210 are fixed, which makes the disassembly and assembly of the motor transmission mechanism 100 more convenient.

[0044] The specific method of detachable connection between the fixed flange 1 and the box flange 210 can be set according to actual conditions. Figure 1 , Figure 2 and Figure 4 In this embodiment, the fixed flange 1 and the box flange 210 are fixedly connected via a first screw member (not shown in the figure).

[0045] Specifically, the fixing flange 1 and the box flange 210 are detachably connected via a first screw connection. Usually, a plurality of first screw connections are arranged at intervals along the circumference of the fixing flange 1. The first screw connection may be a screw or the like.

[0046] The transition flange 3 is mounted on the motor module 2, and the transmission end of the transmission shaft 300 extends into the motor module 2 from the transition flange 3. The transition flange 3 can be fixedly mounted on the motor module 2 by welding or screwing. Figure 2 , Figure 3 and Figure 5 In this embodiment, the transition flange 3 and the motor module 2 are fixedly connected via a third screw connection (not shown in the figure).

[0047] Specifically, the transition flange 3 and the motor module 2 are detachably connected via a third screw connection. Usually, a plurality of third screw connections are arranged at intervals along the circumference of the transition flange 3 . The third screw connection may be a screw or the like.

[0048] Motor module 2 is usually a geared motor, optionally, see Figures 1 to 3 In this embodiment, the motor module 2 includes a reducer 21, and one end of the transmission shaft 300 located outside the housing 200 is dynamically coupled to the reducer 21.

[0049] Specifically, the transition flange 3 is installed on the reducer 21, the transmission end of the transmission shaft 300 extends into the reducer 21 from the transition flange 3, a limiting structure is set between the transmission end of the transmission shaft 300 and the reducer 21, and a dynamic coupling connection is formed between the transmission end of the transmission shaft 300 and the reducer 21.

[0050] As described above, a limited position structure is provided between the transmission end of the transmission shaft 300 and the motor module 2. Figures 1 to 3 In this embodiment, a limit key 5 is provided between the transmission shaft 300 and the motor module 2 so as to limit the transmission shaft 300 and the motor module 2 in the circumferential direction of the transmission shaft 300 through the limit key 5 .

[0051] Specifically, keyways (not shown in the figure) are provided on the circumferential side surface of the transmission end of the transmission shaft 300 and the inner side surface of the reducer 21 corresponding to the limit key 5. The limiting structure includes the limit key 5, the keyway on the transmission shaft 300 and the keyway on the reducer 21. Through the cooperation of the keyway on the transmission shaft 300, the keyway on the reducer 21 and the limit key 5, the transmission shaft 300 and the motor module 2 can be limited in the circumferential direction of the transmission shaft 300.

[0052] Optionally, see Figures 1 to 3 In this embodiment, a second screw connector 22 is installed on the motor module 2 , and the tail of the second screw connector 22 extends into the motor module 2 and is threadedly connected to the end face of the transmission shaft 300 away from the box body 200 .

[0053] Specifically, the limiting structure includes a second screw connection 22, which is installed on the end face of the reducer 21 away from the transition flange 3, and the tail of the second screw connection 22 is threadedly connected with the end face of the transmission end of the transmission shaft 300. Through the cooperation between the second screw connection 22 and the threaded hole (not shown in the figure) on the transmission shaft 300, the transmission shaft 300 and the motor module 2 can be limited in the axial direction of the transmission shaft 300. Among them, the second screw connection 22 can be a screw or the like.

[0054] For further information, see Figures 1 to 3 In this embodiment, an end cover 23 is installed on the end face of the reducer 21 away from the transition flange 3, and the second screw member 22 is installed on the end cover 23, and the second screw member 22 is sequentially installed with a spring 25 and a gasket 24. The end cover 23 can be a flat cover, and a round hole for installing the second screw member 22 is provided on the end cover 23.

[0055] The inner diameters of the fixed flange 1, the transition flange 3 and the housing flange 210 are larger than the diameter of the transmission shaft 300. The transmission end of the transmission shaft 300 passes through the housing 200, the housing flange 210, the fixed flange 1 and the transition flange 3 and is connected to the reducer 21. The limit key 5 is used to limit the radial movement of the reducer 21, and the axial movement of the reducer 21 is limited by the shaft shoulder (not shown in the figure) on the transmission shaft 300, the end cover 23, the second screw connection 22, the gasket 24 and the spring 25.

[0056] The connecting fixing flange 1 and the transition flange 3 are connected by the limit pin 4 to limit the rotation of the transition flange 3 and the motor module 2. Optionally, refer to Figure 2 and Figure 5 In this embodiment, a second limiting groove 31 is provided on the end surface of the transition flange 3 close to the fixed flange 1 , and one end of the limiting pin 4 close to the transition flange 3 extends into the second limiting groove 31 .

[0057] Specifically, the shape of one end of the limit pin 4 close to the transition flange 3 is usually compatible with the shape of the second limit groove 31. By matching one end of the limit pin 4 with the second limit groove 31 on the transition flange 3, the limit pin 4 can be inserted and fixed on the transition flange 3.

[0058] Optionally, see Figure 5 In this embodiment, the second limiting groove 31 penetrates the end surface of the transition flange 3 away from the fixed flange 1. That is, the second limiting groove 31 penetrates the transition flange 3 in the axial direction of the transmission shaft 300.

[0059] The shapes of the limiting pin 4 and the second limiting groove 31 can be set according to actual conditions. For example, see Figure 2 and Figure 5 The limiting pin 4 is cylindrical, and the second limiting groove 31 is a circular hole. The transition flange 3 is a circular flange with a mounting circular hole, and a circular hole for mounting the limiting pin 4 is provided on the transition flange 3.

[0060] Optionally, see Figure 2 and Figure 4 In this embodiment, a first limiting groove 11 is provided on the end surface of the fixed flange 1 close to the transition flange 3 , and one end of the limiting pin 4 close to the fixed flange 1 extends into the first limiting groove 11 .

[0061] Specifically, after one end of the limit pin 4 is inserted and fixed in the second limit groove 31 on the transition flange 3, the other end of the limit pin 4 is inserted into the first limit groove 11 to complete the assembly between the fixed flange 1, the transition flange 3 and the limit pin 4.

[0062] Optionally, see Figure 4In this embodiment, the first limiting groove 11 passes through the end surface of the fixing flange 1 away from the transition flange 3. That is, the first limiting groove 11 passes through the fixing flange 1 in the axial direction of the transmission shaft 300.

[0063] Optionally, see Figure 2 and Figure 4 In this embodiment, the first limiting groove 11 passes through the circumferential side surface of the fixing flange 1 .

[0064] Specifically, the first limiting groove 11 is arranged in the form of a waist groove hole, and one end of the first limiting groove 11 in the extension direction passes through the peripheral side surface of the fixed flange 1, thereby forming an entrance of the first limiting groove 11 on the peripheral side surface of the fixed flange 1, so that one end of the limiting pin 4 can be inserted into the first limiting groove 11 from the entrance.

[0065] Likewise, see Figure 4 In this embodiment, the fixing flange 1 is a circular flange with a mounting circular hole, and a waist groove hole for engaging with the limiting pin 4 is opened on the fixing flange 1.

[0066] Optionally, see Figure 2 and Figure 4 In this embodiment, the first limiting groove 11 is extended in the up and down directions, the upper end of the first limiting groove 11 passes through the peripheral side surface of the fixing flange 1, the lower end of the first limiting groove 11 abuts the limiting pin 4, and the lower end of the first limiting groove 11 is adapted to the shape of the end of the limiting pin 4 close to the fixing flange 1.

[0067] Specifically, an entrance of a first limiting groove 11 facing upward is formed on the peripheral side of the fixing flange 1, and the shape of the lower end of the first limiting groove 11 is adapted to the shape of the limiting pin 4, and one end of the limiting pin 4 can be inserted into the first limiting groove 11 from top to bottom.

[0068] The motor transmission mechanism 100 can reduce the processing cost. When the transmission shaft 300 changes, it is only necessary to change the inner diameter of each flange according to the size and process of the transmission shaft 300, and other parts can be reused. In the actual working process, the reducer 21 drives the transmission shaft 300 to rotate under the connection of the limit key 5. Since the reducer 21 and the housing 200 are fixed by the fixing flange 1, the transition flange 3 and the limit pin 4, the reducer 21 as a whole will not be driven by the transmission shaft 300 to rotate and deviate, and will not be stuck due to the direct connection between the reducer 21 and the housing 200, thereby avoiding the loss of the reducer 21.

[0069] The motor transmission mechanism 100 is detachable and installed on the outer surface of the device. It is designed as a module and can be removed as a whole. When it is necessary to replace the transmission shaft 300 or replace the reducer 21, it is only necessary to remove the entire module from the shaft end, which is easy to operate.

[0070] The utility model also provides an oven, which may be a tunnel oven or the like. The oven includes a motor transmission mechanism. Since the motor transmission mechanism adopts the technical solution of the above embodiment, it has the beneficial effects brought by the technical solution of the above embodiment.

[0071] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A motor transmission mechanism, characterized in that: include: A fixing flange, which is mounted on the outer wall of the box body and is used for allowing one end of the transmission shaft to extend from the fixing flange to the outside of the box body; A motor module, the motor module is located on a side of the fixed flange away from the housing, a transition flange is installed on the motor module, the transition flange and the fixed flange are spaced apart and opposite to each other in the axial direction of the transmission shaft, and is used for allowing one end of the transmission shaft located outside the housing to extend from the transition flange into the motor module, so that the motor module is dynamically coupled to the one end of the transmission shaft located outside the housing; A limit pin is provided to extend along the axial direction of the transmission shaft, and two ends of the limit pin are respectively connected to the fixing flange and the transition flange, so that the motor module is limited to rotate relative to the box body through the limit pin.

2. The motor transmission mechanism according to claim 1, characterized in that: A first limiting groove is arranged on the end surface of the fixed flange close to the transition flange, and one end of the limiting pin close to the fixed flange extends into the first limiting groove.

3. The motor transmission mechanism according to claim 2, characterized in that: The first limiting groove passes through the end surface of the fixing flange away from the transition flange; and / or, The first limiting groove passes through the peripheral side surface of the fixing flange.

4. The motor transmission mechanism according to claim 3, characterized in that: The first limiting groove is extended in the up-down direction, the upper end of the first limiting groove passes through the peripheral side surface of the fixing flange, the lower end of the first limiting groove abuts against the limiting pin, and the lower end of the first limiting groove is adapted to the shape of one end of the limiting pin close to the fixing flange.

5. The motor transmission mechanism according to claim 1, characterized in that: A second limiting groove is arranged on the end surface of the transition flange close to the fixed flange, and one end of the limiting pin close to the transition flange extends into the second limiting groove.

6. The motor transmission mechanism according to claim 5, characterized in that: One end of the limiting pin close to the transition flange is adapted to the shape of the second limiting groove; and / or, The second limiting groove passes through the end surface of the transition flange away from the fixed flange.

7. The motor transmission mechanism according to any one of claims 1 to 6, characterized in that: A box flange is arranged on the outer box wall of the box body, and the fixing flange is butted against one end of the box flange close to the motor module, and the fixing flange and the box flange are detachably connected.

8. The motor transmission mechanism according to claim 7, characterized in that: The fixing flange is fixedly connected to the box flange via a first screw connection; and / or, The box flange is welded and fixed on the outer box wall of the box.

9. The motor transmission mechanism according to any one of claims 1 to 6, characterized in that: The motor module includes a reducer, and one end of the transmission shaft located outside the housing is dynamically coupled to the reducer; and / or, A second screw connection is installed on the motor module, the tail of the second screw connection extends into the motor module and is threadedly connected to the end face of the transmission shaft away from the box body; and / or, A limit key is arranged between the transmission shaft and the motor module so as to limit the transmission shaft and the motor module in the circumferential direction of the transmission shaft through the limit key.

10. An oven, characterized in that: It comprises a motor transmission mechanism as described in any one of claims 1 to 9.

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