A lifting transmission device for shaft parts

Abstract

The present invention belongs to the field of transmission of shaft parts, and relates to a lifting transmission device for shaft parts, including a first bearing seat, a driving module, and a first lever module; the first bearing seat is used to support shaft parts; the driving module is used to drive shaft parts to rotate, including a driving motor, a driving wheel driven to rotate directly by the driving motor, a driven wheel coaxially arranged with the bearing seat, and a transmission belt for connecting the driving wheel and the driven wheel; the first lever module includes a lever arm, an electro-hydraulic direct drive cylinder, and a hinge support; the hinge support is fixedly arranged, one end of the lever arm is hinged on the hinge support, and the other end drives the lever arm to swing around the hinge point through the electro-hydraulic direct drive cylinder. The present invention has a novel and simple structure, is easy to implement, operates smoothly and reliably, has high synchronization, and can simultaneously realize the transmission and lifting of shaft parts.

Description

Technical Field

[0001] The invention belongs to the field of shaft component transmission, and relates to a lifting transmission device for shaft components. Background Art

[0002] Transmission lifting devices are widely used in metallurgy, mining, coal, building materials, light industry, electric power, chemical industry and other industries. Their function is to realize the rotation and lifting of shaft parts at the same time under special working conditions.

[0003] In order to achieve this function, there are two structural forms of existing transmission lifting devices. One is that the drive and the shaft are rigidly directly connected, and the motor reducer and the like must move with it during lifting; the other is that in order to avoid the movement of transmission components such as the motor reducer, a flexible transmission such as a chain drive is adopted. The total length of the chain is much larger than the center distance between the master and slave sprockets, and a tensioning device is used to tension the chain. When the shaft needs to be lifted, the tensioning device must be disassembled, resulting in the inability to lift and lower the shaft synchronously with the transmission.

[0004] The above two structural forms use traditional air cylinders or hydraulic cylinders to drive the shaft to lift and lower. If an air cylinder is used, a pneumatic system must be configured for the cylinder separately, and the lifting action is rigid and has poor synchronization, and it is impossible to stop at any position during the lifting process. If a traditional hydraulic cylinder is used, a hydraulic station, valves, valve blocks and other hydraulic system components must be configured.

[0005] In summary, the existing transmission lifting devices have poor synchronization and coordination, the mechanism system is too complicated, there are many failure points, poor stability, and a large workload for inspection and maintenance, which brings great difficulties to production operations. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a lifting transmission device for shaft parts, so as to solve and overcome the problems of poor synchronization and inability to synchronize lifting and rotating in existing transmission lifting devices.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A lifting transmission device for shaft components, comprising a first bearing seat, a drive module, and a first lever module; the first bearing seat is used to support shaft components; the drive module is used to drive the shaft components to rotate, and comprises a drive motor, a driving wheel directly rotated by the drive motor, a driven wheel coaxially arranged with the bearing seat, and a transmission belt for connecting the driving wheel and the driven wheel; the first lever module comprises a lever arm, an electro-hydraulic direct-drive cylinder, and a hinge support; the hinge support is fixedly arranged, one end of the lever arm is hinged on the hinge support, and the other end drives the lever arm to swing around a hinge point through the electro-hydraulic direct-drive cylinder.

[0009] Optionally, the driving wheel and the driven wheel are both arranged on the lever arm.

[0010] Optionally, the lever arm is hinged to a hinge support via a fulcrum hinge, and the hinge point is located on the axis of the driven wheel.

[0011] Optionally, it also includes a second bearing seat and a second lever module that are arranged in a mirror image with the first bearing seat and the first lever module.

[0012] Optionally, the line connecting the connection point between the electro-hydraulic direct-drive cylinder and the lever arm in the first lever module and the connection point between the electro-hydraulic direct-drive cylinder and the lever arm in the second lever module is parallel to the axis of the shaft component and are in the same horizontal plane; the line connecting the hinge point of the lever arm in the first lever module and the hinge point of the lever arm in the second lever module is parallel to the axis of the shaft component and are in the same horizontal plane.

[0013] Optionally, a reducer is provided between the driving motor and the driving wheel.

[0014] Optionally, the drive motor and the driving wheel are fixedly arranged, and their positions do not change as the shaft components are driven by the electro-hydraulic direct drive cylinder.

[0015] Optionally, a fixed support is also included, and the hinge seat support is arranged on the fixed support.

[0016] Optionally, a lifting mechanical stop for fixing the position of the lever arm is provided on the fixed support.

[0017] Optionally, a through hole is provided on the lever arm, and the lifting mechanical stopper matches the arrangement position of the through hole.

[0018] The beneficial effects of the present invention are:

[0019] The two bearing seats of the present invention are installed on two lever arms with exactly the same length and swing fulcrum. The lever arm swings up and down around its fulcrum to realize the lifting and lowering of shaft parts. The fulcrum of the lever arm and the axis of the rotating driving wheel are on the same axis, so that when the lever arm drives the shaft parts to lift, the center distance between the driving wheel and the driven wheel remains unchanged, and there is no constraint on the shaft parts that affects their lifting and lowering.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a front view of the present invention;

[0024] Figure 3 for Figure 2 AA section view;

[0025] Figure 4 for Figure 2 BB cross-sectional view. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figure 1-Figure 4The component numbers in the accompanying drawings respectively represent: driving motor 1, reducer 2, driven wheel 3, lever arm 4, electro-hydraulic direct drive cylinder 5, shaft parts 6, fixed support 7, lifting mechanical stop 8, bearing seat 9, transmission chain 10 (transmission belt), driving wheel 11, fulcrum hinge seat 12, hinge seat support 13.

[0030] During use of the present invention, the left and right ends of the shaft-type components 6 that need to be driven to rotate and lift at the same time are supported by the bearing seats 9 for rotation, and the driven wheel 3 is installed on the outer side of the first bearing seat, which is the driving end. The first bearing seat and the second bearing seat are respectively installed on two left and right lever arms 4 with the same length and fulcrum, the driving motor 1 is directly connected to the input shaft of the reducer 2, the driving wheel 11 is directly connected to the output shaft of the reducer 2, and the driving wheel 11 and the driven wheel 3 are transmitted through the transmission chain 10 to drive the driving force of the shaft-type components 6 to rotate. The driving motor 1, the reducer, the driving wheel 11, the transmission chain 10, and the driven wheel 3 constitute a transmission device for driving the shaft-type components 6 to rotate, wherein the driving motor 1 and the reducer are fixed in position and do not move with the lifting and lowering of the shaft-type components 6.

[0031] The output shaft of the reducer, the driving wheel 11, and the fulcrum hinge seat 12 are arranged on the same horizontal axis, and the fulcrum hinge seat 12 is installed on the fixed support 7 by the hinge seat support 13. The lever arm 4 is driven by the electro-hydraulic direct-drive cylinder 5 to swing up and down around the axis of the fulcrum hinge seat 12. The piston rod of the electro-hydraulic direct-drive cylinder 5 extends, the lever arm swings up, and the position of the corresponding shaft component 6 rises; the piston rod of the electro-hydraulic direct-drive cylinder 5 retracts, the lever arm 4 swings down, and the position of the corresponding shaft component 6 drops. Since the axis of the fulcrum hinge seat 12 and the axis of the driving wheel 11 are in the same straight line, the axial distance between the driving wheel 11 and the driven wheel 3 does not change when the lever arm 4 swings up and down (the shaft component 6 rises and falls), that is, the radius of the swing is equal at any position, and the transmission of the shaft component 6 does not restrict the lifting and lowering, so that the shaft component 6 can still rotate while being lifted and lowered.

[0032] The electro-hydraulic direct drive has no hydraulic station and intermediate piping, and does not require civil construction. The entire transmission mechanism system is simple, with few fault points and less maintenance work. The rigid lever arm swing structure and the electro-hydraulic direct drive lifting drive form make the lifting synchronization, coordination and stability of the shaft parts 6 very good; the lever arm 4 is provided with a lifting mechanical stopper 8. When the shaft parts 6 need to stay at any position during the lifting process, the adjusting bolt of the lifting mechanical stopper 8 is unscrewed and rigidly contacted with the fixed support 7, so that the shaft parts 6 can be suspended at any position during the lifting and overweight. At this time, the electro-hydraulic direct drive cylinder 5 does not need to exert force.

[0033] The present invention adopts the electro-hydraulic direct-drive cylinder 5 as the lifting power source. Since the electro-hydraulic direct-drive cylinder 5 is a highly integrated mechatronic product, it has the characteristics of heavy load and large output, high precision, high response, intelligence, system simplification, and maintenance-free. It solves the problems of poor synchronization, coordination, and stability of the lifting drive of the shaft of the existing transmission lifting device, overly complex mechanism system, high energy consumption, multiple fault points, and large workload of inspection and maintenance.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A lifting transmission device for shaft parts, characterized in that: It includes a first bearing seat, a driving module, and a first lever module; The first bearing seat is used to support shaft components; The driving module is used to drive the shaft components to rotate, including a driving motor, a driving wheel driven to rotate directly by the driving motor, a driven wheel coaxially arranged with the bearing seat, and a transmission belt for connecting the driving wheel and the driven wheel; The first lever module includes a lever arm, an electro-hydraulic direct-drive cylinder, and a hinge support; the hinge support is fixedly arranged, one end of the lever arm is hinged on the hinge support, and the other end drives the lever arm to swing around the hinge point through the electro-hydraulic direct-drive cylinder; the driving wheel and the driven wheel are both arranged on the lever arm; the lever arm is hinged to the hinge support through a fulcrum hinge, and its hinge point is located on the axis of the driven wheel; it also includes a second bearing seat and a second lever module that are arranged in a mirror image with the first bearing seat and the first lever module; the line connecting the connection point of the electro-hydraulic direct-drive cylinder and the lever arm in the first lever module and the connection point of the electro-hydraulic direct-drive cylinder and the lever arm in the second lever module is parallel to the axis of the shaft components and is in the same horizontal plane; the line connecting the hinge point of the lever arm in the first lever module and the hinge point of the lever arm in the second lever module is parallel to the axis of the shaft components and is in the same horizontal plane.

2. The lifting transmission device for shaft parts as claimed in claim 1, characterized in that: A speed reducer is provided between the driving motor and the driving wheel.

3. The lifting transmission device for shaft parts as claimed in claim 1 or 2, characterized in that: The driving motor and the driving wheel are fixedly arranged, and their positions do not change as the shaft components are driven by the electro-hydraulic direct drive cylinder.

4. The lifting transmission device for shaft parts as claimed in claim 1, characterized in that: It also includes a fixed support, and the hinge seat support is arranged on the fixed support.

5. The lifting transmission device for shaft parts as claimed in claim 4, characterized in that: The fixed support is provided with a lifting mechanical stopper for fixing the position of the lever arm.

6. The lifting transmission device for shaft parts as claimed in claim 5, characterized in that: The lever arm is provided with a through hole, and the lifting mechanical stopper matches the arrangement position of the through hole.

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