Transmission device

Abstract

The utility model relates to a transmission device which comprises a transmission mechanism and a driven mechanism, the transmission mechanism comprises a lifting seat, a motor installed on the lifting seat and a taper sleeve connected with an output shaft of the motor; the driven mechanism comprises a lead screw and a conical head arranged on the lead screw in a sliding mode. The conical sleeve is connected with or away from the conical head in a sleeved mode under the action of the lifting base, and the lead screw moves linearly under the rotation action of the conical head. The device is suitable for different working conditions in which the distance between the motor and the nut is variable.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, specifically to a transmission device. Background Technology

[0002] As a crucial component in transmission devices, the lead screw currently features a common industry structure where the nut on the lead screw is fixedly connected to the motor's output end. The motor's rotation drives the lead screw, converting rotational motion into linear motion. While this design achieves linear motion, the nut and motor output end must remain fixedly connected. If the connection is broken, the motor, lacking displacement capability, can no longer drive the nut. In other words, the current solution is only suitable for applications where the motor and nut are fixedly connected, and not for applications where the distance between them is variable.

[0003] The prior art CN202158157U discloses a lead screw transmission device, which includes a motor device that outputs driving force and a lead screw driven by the motor device. A lead screw nut is sleeved on the lead screw. When the lead screw nut is driven by the motor device, it moves along the direction of the lead screw. The motor device and the lead screw are connected by gears. The gear driven by the motor device meshes with the gear on the lead screw.

[0004] The existing screw drive devices are also unsuitable for working conditions where the distance between the motor and the nut is variable. Utility Model Content

[0005] The technical problem solved by this utility model is to overcome the problems existing in the prior art, so that this device is applicable to a transmission device in which the distance between the motor and the nut is variable.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A transmission device includes a transmission mechanism and a driven mechanism. The transmission mechanism includes a lifting seat, a motor mounted on the lifting seat, and a tapered sleeve connected to the output shaft of the motor. The driven mechanism includes a lead screw and a tapered head slidably disposed on the lead screw. The tapered sleeve engages with or moves away from the tapered head under the action of the lifting seat, and the lead screw moves linearly under the rotation of the tapered head.

[0008] Preferably, the lifting seat includes a fixed frame, a retractable cylinder mounted on the fixed frame, and a base connected to the output end of the retractable cylinder; the motor is mounted on the base.

[0009] Preferably, the fixed frame is connected to the elevator.

[0010] Preferably, the output shaft of the motor is connected to a universal joint coupling, and the universal joint coupling is also provided with a connecting flange for mounting a tapered sleeve.

[0011] Preferably, a first spring is also provided between the universal joint coupling and the connecting flange.

[0012] Preferably, the conical sleeve includes a circular body and a groove disposed on the circular body.

[0013] Preferably, the cone head includes a cylindrical body and a prism disposed at one end of the cylindrical body and adapted to the groove.

[0014] Preferably, the driven mechanism further includes a mounting plate for mounting the lead screw.

[0015] Preferably, a second spring is also provided between the cone head and the mounting plate.

[0016] Preferably, the mounting plate is provided with three lead screws.

[0017] It has the following beneficial effects:

[0018] 1) The motor is mounted on a lifting platform. A tapered sleeve, adapted to the cone head on the lead screw, is installed at the motor's output end. The lifting platform drives the motor to move, thereby moving the tapered sleeve connected to the motor. Ultimately, this allows the tapered sleeve to engage or disengage with the cone head. When the tapered sleeve and cone head are engaged, the rotation of the motor drives the lead screw to achieve linear motion. The lifting function of the lifting platform allows for adjustment of the distance between the cone head and the tapered sleeve, making this device suitable for different working conditions.

[0019] 2) Install a first spring to enhance the self-resetting and self-adaptive properties of the universal joint coupling.

[0020] 3) Install a second spring to buffer the downward impact force of the cone sleeve.

[0021] 4) Grooves are provided on the conical sleeve and prisms are provided on the conical head to improve the stability of the connection between the two. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a transmission device according to the present invention;

[0023] Figure 2 This is a diagram showing the fit between the cone sleeve and the cone head in a transmission device according to this utility model.

[0024] Figure 3 This is a diagram of a cone sleeve structure for a transmission device according to the present invention;

[0025] Figure 4 This is a diagram of the cone head structure of a transmission device according to the present invention. Detailed Implementation

[0026] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0028] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0031] Example 1

[0032] like Figures 1-3 As shown, a transmission device is disclosed, including a transmission mechanism and a driven mechanism. The transmission mechanism includes a lifting seat, a motor 3 mounted on the lifting seat, and a tapered sleeve 8 connected to the output shaft of the motor 3. The driven mechanism includes a lead screw 11 and a cone 9 slidably disposed on the lead screw 11. The tapered sleeve 8 engages with or moves away from the cone 9 under the action of the lifting seat, and the lead screw 11 moves linearly under the rotation of the cone 9.

[0033] In this embodiment, the transmission mechanism serves as the driving component for moving the lead screw 11. Specifically, the transmission mechanism includes a lifting seat, which serves two purposes: fixing the motor 3 and driving the motor 3 to move. The output end of the motor 3 is connected to the tapered sleeve 8, and the motor 3 drives the tapered sleeve 8 to rotate.

[0034] The driven mechanism includes a lead screw 11 and a cone head 9 mounted on the lead screw 11. The lifting function of the lifting seat drives the cone sleeve 8 to move towards the cone head 9, ultimately connecting the cone sleeve 8 and the cone head 9 together. At this time, the lifting seat remains in a fixed position, and the motor 3 starts. Since the cone sleeve 8 and the cone head 9 are now connected, the motor drives the cone head 9 to rotate following the cone sleeve 8, ultimately achieving linear motion of the lead screw 11. In this embodiment, the lifting function of the lifting seat is used to adjust the distance between the cone head 9 and the cone sleeve 8, making the device suitable for different working conditions.

[0035] Example 2

[0036] A transmission device is disclosed, including a transmission mechanism and a driven mechanism. The transmission mechanism includes a lifting seat, a motor 3 mounted on the lifting seat, and a tapered sleeve 8 connected to the output shaft of the motor 3. The driven mechanism includes a lead screw 11 and a cone 9 slidably disposed on the lead screw 11. The tapered sleeve 8 engages with or moves away from the cone 9 under the action of the lifting seat, and the lead screw 11 moves linearly under the rotation of the cone 9.

[0037] The difference between this embodiment and Embodiment 1 is that the lifting seat specifically includes a fixed frame 1, on which a telescopic cylinder 2 is mounted. The output end of the telescopic cylinder 2 is connected to the base 4, and the motor 3 is mounted on the base 4. By controlling the displacement of the base 4 through the telescopic cylinder 2, the motor 3 connected to the base 4 is moved, thereby causing the motor 3 to move. Ultimately, the distance between the cone sleeve 8 and the cone head 9 is adjusted.

[0038] In this embodiment, since the telescopic cylinder 2 has a limited extension stroke, in order to further improve the adjustment of the gap between the cone sleeve 8 and the cone head 9, the fixed frame 1 can be connected to an upgrading machine with lifting function, such as connecting the fixed frame 1 to a crane, and controlling the lifting of the fixed frame 1 through the crane.

[0039] Example 3

[0040] A transmission device is disclosed, including a transmission mechanism and a driven mechanism. The transmission mechanism includes a lifting seat, a motor 3 mounted on the lifting seat, and a tapered sleeve 8 connected to the output shaft of the motor 3. The driven mechanism includes a lead screw 11 and a cone 9 slidably disposed on the lead screw 11. The tapered sleeve 8 engages with or moves away from the cone 9 under the action of the lifting seat, and the lead screw 11 moves linearly under the rotation of the cone 9.

[0041] The difference between this embodiment and Embodiment 1 is that, to facilitate the installation of the motor 3 and the tapered sleeve 8, a universal joint coupling 6 can be installed on the output shaft of the motor, and a connecting flange 7 can be installed on the universal joint coupling 6. The tapered sleeve 8 is fixedly connected to the connecting flange 7, specifically by means of bolts or other methods.

[0042] By setting the universal joint coupling 6, the motor 3 can reliably transmit torque to drive the tapered sleeve 8 to rotate.

[0043] In this embodiment, a first spring 5 may be provided between the universal joint coupling 6 and the connecting flange 7. By providing the first spring 5, the self-resetting and self-adaptive properties of the universal joint coupling 6 are enhanced.

[0044] Example 4

[0045] A transmission device is disclosed, including a transmission mechanism and a driven mechanism. The transmission mechanism includes a lifting seat, a motor 3 mounted on the lifting seat, and a tapered sleeve 8 connected to the output shaft of the motor 3. The driven mechanism includes a lead screw 11 and a cone 9 slidably disposed on the lead screw 11. The tapered sleeve 8 engages with or moves away from the cone 9 under the action of the lifting seat, and the lead screw 11 moves linearly under the rotation of the cone 9.

[0046] The difference between this embodiment and embodiment 1 is that the conical sleeve 8 specifically includes a circular body and a groove provided on the circular body.

[0047] The cone 9 includes a cylindrical body and a prism disposed at one end of the cylindrical body and adapted to the groove.

[0048] When the cone sleeve 8 and the cone head 9 are fitted together, the prism on the cone head 9 fits perfectly into the groove on the cone sleeve 8, so that the two can rotate synchronously under the drive of the motor.

[0049] Example 5

[0050] A transmission device is disclosed, including a transmission mechanism and a driven mechanism. The transmission mechanism includes a lifting seat, a motor 3 mounted on the lifting seat, and a tapered sleeve 8 connected to the output shaft of the motor 3. The driven mechanism includes a lead screw 11 and a cone 9 slidably disposed on the lead screw 11. The tapered sleeve 8 engages with or moves away from the cone 9 under the action of the lifting seat, and the lead screw 11 moves linearly under the rotation of the cone 9.

[0051] The difference between this embodiment and the previous embodiment is that the driven mechanism further includes a mounting plate 12 for mounting the lead screw 11. The mounting plate 12 is connected to other fixed brackets.

[0052] In this embodiment, three lead screws 11 can be installed on the mounting plate 12. The transmission mechanism is driven to move left and right by other driving devices, so that the tapered sleeve 8 is aligned with different lead screws 11, and finally the different lead screws 11 are driven.

[0053] Specifically, a second spring 10 is also provided between the cone head 9 and the mounting plate 12. The second spring 10 is provided to buffer the downward impact force of the cone sleeve 8.

[0054] Obviously, the above embodiments are merely examples to clearly illustrate the technical solution of this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A transmission, characterized in that The transmission mechanism comprises a lifting seat, a motor installed on the lifting seat, and a taper sleeve connected with an output shaft of the motor; the driven mechanism comprises a lead screw and a taper head slidingly arranged on the lead screw; the taper sleeve is sleeved with or away from the taper head under the action of the lifting seat, and the lead screw moves linearly under the rotation action of the taper head.

2. A transmission according to claim 1, characterised in that The lifting seat comprises a fixed frame, a lifting cylinder arranged on the fixed frame, and a machine base connected with an output end of the lifting cylinder; the motor is installed on the machine base.

3. A transmission according to claim 2, wherein The fixed frame is connected with the elevator.

4. A transmission according to claim 1, wherein The output shaft of the motor is connected with a universal joint coupling, and a connecting flange for installing the taper sleeve is further arranged on the universal joint coupling.

5. A transmission according to claim 4, wherein A first spring is further arranged between the universal joint coupling and the connecting flange.

6. A transmission according to claim 1, wherein, The taper sleeve comprises a circular ring body and a groove arranged on the circular ring body.

7. A transmission according to claim 6, wherein The taper head comprises a cylindrical body and a prism arranged on one end of the cylindrical body and matched with the groove.

8. A transmission according to claim 1, wherein, The driven mechanism further comprises a mounting plate for mounting the lead screw.

9. A transmission according to claim 8, wherein A second spring is further arranged between the taper head and the mounting plate.

10. A transmission according to claim 8, wherein, Three lead screws are arranged on the mounting plate.

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