A material pushing mechanism with reduced stroke for use in vacuum environment

Abstract

The present invention discloses a travel-saving material pushing mechanism for a vacuum environment, comprising a spline shaft, a second screw shaft, a first screw shaft, a gear box, and a material pushing trolley; the spline shaft, the second screw shaft, and the first screw shaft are arranged in parallel, and the spline shaft, the second screw shaft, and the first screw shaft are sequentially connected through a gear box transmission; the material pushing trolley is sleeved on the first screw shaft. Compared with the prior art in which the material pushing mechanism and the material moving distance are equal, the present invention can decompose the material moving distance into the sum of the moving distances of the components on the two screw shafts through a two-stage transmission structure, thereby greatly reducing the length of the vacuum equipment for material movement by arranging the structure of the device in a three-dimensional space, thereby reducing the volume of the vacuum equipment, and because the two-stage transmission mechanism drives the moving components to move simultaneously, the material pushing speed is also greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of conveying devices, and in particular to a material pushing mechanism with a reduced stroke for use in a vacuum environment. Background Art

[0002] Vacuum equipment such as vacuum melting and vacuum heat treatment often need to transport materials over long distances in the vacuum chamber. The feeding mechanism commonly used at present has the same stroke as the material movement stroke, which makes the volume of the vacuum chamber very large. Moreover, since the feeding mechanism has the same stroke as the material, the feeding time only depends on the pushing speed of the feeding mechanism, resulting in a long feeding time. Summary of the invention

[0003] The main purpose of the present invention is to provide a material pushing mechanism with a reduced stroke for use in a vacuum environment, thereby solving the problem that the existing feeding device takes a long time and requires a large space when pushing materials in a vacuum environment.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] The embodiment of the present invention provides a material pushing mechanism with a reduced stroke for use in a vacuum environment, comprising a spline shaft, a second screw shaft, a first screw shaft, a gear box, and a material pushing trolley;

[0006] The spline shaft, the second screw shaft and the first screw shaft are arranged in parallel, and the spline shaft, the second screw shaft and the first screw shaft are sequentially connected through a gear box;

[0007] The pusher sleeve is sleeved on the first screw shaft.

[0008] In a possible implementation, a spline sleeve is further included, wherein the spline sleeve is sleeved on the spline shaft, and the spline sleeve is connected to the gear box.

[0009] In a possible implementation, the gearbox includes a first gear, a second gear, and a third gear;

[0010] The first gear, the second gear and the third gear are meshed in sequence, the first gear is fixedly sleeved on the spline sleeve, the second gear is sleeved on the second screw shaft, and the third gear is fixedly sleeved on the first screw shaft.

[0011] In a possible implementation, a nut is also included;

[0012] The nut is sleeved on the second screw shaft, and the nut is fixedly connected to the second gear.

[0013] In a possible implementation, it also includes a nut;

[0014] The nut is sleeved on the first screw shaft, and the nut is fixedly connected to the pusher sleeve.

[0015] In a possible implementation, the bottom of the pusher trolley is provided with moving wheels.

[0016] In a possible implementation, a bearing seat is further included, and the spline shaft, the first screw shaft, and the second screw shaft are all installed on the bearing seat.

[0017] In a possible implementation, it further includes a motor driver;

[0018] The motor driver is connected to the spline shaft.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a travel-saving material pushing mechanism for a vacuum environment, which includes a spline shaft and two screw shafts, a spline sleeve being provided on the spline shaft, and the spline shaft and the two screw shafts are sequentially driven by a two-stage gear transmission mechanism of a gear box. When the spline shaft rotates, the spline sleeve drives a nut on a screw shaft through a primary gear transmission structure to drive the gear box to move, and then drives another screw shaft to rotate through a secondary gear transmission structure, so that the nut on the screw shaft drives the material pushing trolley to move, thereby pushing the material. Compared with the prior art in which the material pushing mechanism and the material moving distance are equal, the present invention can decompose the material moving distance into the sum of the moving distances of the components on the two screw shafts through a two-stage transmission structure, thereby arranging the structure of the device in a three-dimensional space, greatly reducing the length of the vacuum equipment for material movement, thereby reducing the volume of the vacuum equipment, and because the two-stage transmission mechanism drives the moving components to move simultaneously, the material pushing speed is also greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the stroke-saving material pushing mechanism for a vacuum environment of the present invention.

[0022] In the figure: 1-spline shaft; 2-gear box; 3-first gear; 4-spline sleeve; 5-nut; 6-second gear; 7-first screw shaft; 8-feeder set car; 9-nut; 10-second screw shaft; 11-third gear; 12-bearing seat; 13-moving wheel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 This embodiment discloses a material pushing mechanism for saving stroke in a vacuum environment, comprising a spline shaft 1, a second screw shaft 10, a first screw shaft 7, a gear box 2, and a material pushing trolley 8;

[0025] The spline shaft 1, the second screw shaft 10, and the first screw shaft 7 are arranged parallel to each other, and the spline shaft 1, the second screw shaft 10, and the first screw shaft 7 are sequentially connected through the gear box 2;

[0026] The material pushing trolley 8 is sleeved on the first screw shaft 7 .

[0027] Furthermore, the present embodiment further comprises a spline sleeve 4 , which is sleeved on the spline shaft 1 and connected to the gear box 2 .

[0028] Furthermore, the present embodiment further comprises a motor driver (not shown) for driving the spline shaft 1 to rotate, and the motor driver is connected to the spline shaft 1. The motor driver drives the spline shaft 1 to rotate.

[0029] Furthermore, the gearbox 2 includes a first gear 3, a second gear 6, and a third gear 11; the first gear 3, the second gear 6, and the third gear 11 are meshed in sequence, the first gear 3 is fixedly sleeved on the spline sleeve 4, the second gear 6 is sleeved on the second screw shaft 10 but does not contact the second screw shaft 10, the second screw shaft 10 is sleeved with a nut 5, the second gear 6 and the nut 5 are fixedly connected, and the third gear 11 is fixedly sleeved on the first screw shaft 7.

[0030] Furthermore, in this embodiment, a nut 9 is sleeved on the first screw shaft 7, and the nut 9 is fixedly connected to the material pushing trolley 8. In this embodiment, the material pushing trolley 8 is sleeved on the first screw shaft 7 and can move axially along the first screw shaft 7.

[0031] Furthermore, in order to facilitate the movement of the material pushing trolley 8 and reduce the movement resistance, the bottom of the material pushing trolley 8 of this embodiment is provided with moving wheels 13.

[0032] In this embodiment, a bearing seat 12 is provided on one side wall inside the vacuum furnace body, and one end of the spline shaft 1, the first screw shaft 7, and the second screw shaft 10 on the same side are all installed on the bearing seat 12, and the other end of the spline shaft 1, the first screw shaft 7, and the second screw shaft 10 on the same side are installed on the flange of the other side wall of the vacuum furnace body.

[0033] When in use, the material is placed on the pusher trolley 8, and then the motor driver drives the spline shaft 1 to rotate, the spline sleeve 4 on the spline shaft 1 and the first gear 3 on the spline sleeve 4 rotate synchronously, the first gear 3 drives the second gear 6 meshing with it to rotate, the second gear 6 drives the fixed nut 5 to rotate, so that the nut 5 and the second screw shaft 10 undergo relative axial movement, the nut 5 drives the gear box 2 to move, and at the same time, the second gear 6 drives the third gear 11 meshing with it and the first screw shaft 7 fixedly connected to the third gear 11 to rotate, the rotation of the first screw shaft 7 causes the nut 9 sleeved thereon and the pusher trolley connected to the nut 9 to move, thereby realizing the pushing of the material.

[0034] Since the gear box 2 and other mechanisms connected to the nut 5 on the second screw shaft 10 move, and at the same time, the mechanism drives the nut 9 and the pusher trolley 8 on the first screw shaft 7 to move, that is, the distance the material moves is equal to the sum of the distances moved by the gear box 2 and the pusher trolley 8, thereby greatly reducing the stroke of the pusher mechanism, and the structure of the present invention reduces the length of the vacuum chamber through a three-dimensional arrangement, thereby greatly reducing the volume of the pusher mechanism of the present invention; and since the mechanisms on the second screw shaft 10 and the first screw shaft 7 move at the same time, the time taken to push the material is also greatly shortened.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a vacuum environment with a reduced stroke, characterized in that: It includes a spline shaft, a second screw shaft, a first screw shaft, a gear box, and a pusher; The spline shaft, the second screw shaft and the first screw shaft are arranged in parallel, and the spline shaft, the second screw shaft and the first screw shaft are sequentially connected through a gear box; The pusher sleeve is sleeved on the first screw shaft; It also includes a spline sleeve, which is sleeved on the spline shaft and connected to the gear box; The gearbox comprises a first gear, a second gear and a third gear; the first gear, the second gear and the third gear are meshed in sequence, the first gear is fixedly sleeved on the spline sleeve, the second gear is sleeved on the second screw shaft, and the third gear is fixedly sleeved on the first screw shaft; It also includes a nut; the nut is sleeved on the second screw shaft, and the nut is fixedly connected to the second gear; It also includes a nut; the nut is sleeved on the first screw shaft, and the nut is fixedly connected to the pusher trolley.

2. The vacuum environment-saving push material mechanism according to claim 1, characterized in that: The bottom of the material pushing trolley is provided with moving wheels.

3. The travel-saving feeding mechanism for vacuum environment according to claim 1, characterized in that: It also includes a bearing seat, and the spline shaft, the first screw shaft, and the second screw shaft are all installed on the bearing seat.

4. The stroke-saving feeding mechanism for vacuum environment according to claim 1, characterized in that: Also included is a motor driver; The motor driver is connected to the spline shaft.

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