Motor mounting structure and belt conveyor for screening machine

Abstract

The utility model discloses a motor mounting structure and a belt conveyor for a screening machine, the motor mounting structure comprises a mounting bottom plate, a connecting plate is arranged on the mounting bottom plate, the connecting plate is rotatably connected with a connecting rod assembly, the other end of the connecting rod assembly is rotatably connected with a floating mounting plate, and the floating mounting plate is arranged on the mounting bottom plate. The floating mounting plate is movably arranged on the mounting bottom plate; the floating mounting plate is used for connecting and mounting a motor, and a first through hole for an output shaft of the motor to penetrate through is further formed in the floating mounting plate. According to the motor mounting structure, the motor can be mounted on the mounting bottom plate in a floating and non-rigid manner, and the floating mounting plate is not in a rigid connecting and fixing state, so that vibration generated in the starting and stopping process of the motor can be consumed; and the hard connection part and / or the output shaft of the motor are / is prevented from being broken due to vibration generated during starting and stopping of the motor, so that the service life of the motor is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motor installation, in particular to a motor installation structure and a belt conveyor for a screening machine. Background Art

[0002] Ballast is laid beneath the rails and sleepers as the foundation of the railway trackbed. After long-term use, soil and broken ballast can cause the entire ballast foundation to become compacted, affecting the foundation's elasticity, seismic resistance, and drainage performance. Therefore, the railway foundation requires regular cleaning of the ballast. Currently, a railway cleaning machine is commonly used to remove ballast from under the sleepers to the side of the railway. Then, a railway screening machine is used to sieve the ballast, allowing the appropriate ballast to continue to be filled under the rails and sleepers. The waste soil is collected and transported off-line via a belt conveyor or collected and discarded.

[0003] The railway screening machine moves on the track. In the past, the common practice in the industry was to set the belt conveyor on the side of the railway screening machine. However, in recent years, more and more local railway bureaus have stipulated that the operating status of railway operating vehicles is not allowed to exceed the railway boundaries. Therefore, setting the belt conveyor within the width range of the railway screening machine has become the optimal solution. The current solution is to set the belt conveyor on the railway screening machine. When not in use, the belt conveyor is located above the crawler belt. When in use, one end of the belt conveyor can be rotated to turn the far end of the belt conveyor outside the crawler belt to achieve the transportation of waste soil.

[0004] However, the problem that arises is where the belt conveyor motor should be installed. Because the motor will produce violent vibrations during the start-up and shutdown processes, if the motor is rigidly mounted on the base, the connection and / or the output shaft of the motor will be easily damaged and broken. Therefore, how to fix the motor using a non-rigid connection method in a limited space has become a problem that troubles technical personnel in this field. Summary of the Invention

[0005] The purpose of the utility model is to provide a motor installation structure and a belt conveyor for a screening machine in order to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] On the one hand, a motor mounting structure is provided, including a mounting base plate, a connecting plate is provided on the mounting base plate, a connecting rod assembly is rotatably connected to the connecting plate, the other end of the connecting rod assembly is rotatably connected to a floating mounting plate, and the floating mounting plate is movably arranged on the mounting base plate; the floating mounting plate is used to connect and mount the motor, and a first through hole is also provided on the floating mounting plate for the output shaft of the motor to pass through.

[0008] This motor mounting structure, through the arrangement of the connecting plate, the connecting rod assembly, and the floating mounting plate, enables the motor to be mounted on the mounting base in a floating, non-rigid manner, allowing the motor to move relative to the mounting base. This dissipates vibration generated during motor startup and shutdown, preventing vibration from causing breakage in hard connections and / or the motor's output shaft, significantly extending the motor's service life. Furthermore, it has the advantages of a simple structure and ease of installation and removal, reducing maintenance costs and difficulty.

[0009] The mounting base serves, on the one hand, to connect and mount the connecting plate and position the motor, and on the other hand, to facilitate installation of the entire structure on a device, allowing the motor to function as a driver. Under normal circumstances, the floating mounting plate does not directly contact the mounting base, but it does limit its range of motion (floating range), preventing it from leaving the mounting base's area.

[0010] Furthermore, the connecting plate and the floating mounting plate are arranged in parallel and spaced apart from each other, and the connecting rod assembly is connected above the connecting plate and the floating mounting plate.

[0011] Furthermore, the mounting base is provided with a clearance groove, in which the lower end of the floating mounting plate is disposed. The clearance groove can accommodate the lower end of the floating mounting plate, allowing it to float within the vertical plane where the clearance groove is located, without departing from the range of the clearance groove.

[0012] Furthermore, a sunken surface is provided on one side of the floating mounting plate, and the sunken surface is used to connect the motor, and the first through hole is provided in the middle of the sunken surface; a first connecting ear plate is provided on the upper part of the floating mounting plate, and the first connecting ear plate is connected to the connecting rod assembly through a bearing and a pin.

[0013] Furthermore, the connecting plate is directly arranged on the mounting base plate, or is installed on the mounting base plate through a connecting seat; a second connecting ear plate is provided on the upper part of the connecting plate, and the second connecting ear plate is connected to the connecting rod assembly through a bearing and a pin.

[0014] Furthermore, the connecting rod assembly includes a pair of connecting rods arranged in parallel, the pair of connecting rods are fixedly connected by a steel plate, and installation spaces are formed at both ends, and pin holes are provided at both ends of the pair of connecting rods.

[0015] On the other hand, a belt conveyor for a screening machine is provided, comprising a frame arranged on the screening machine, an active roller being provided at one end of the frame, the active roller being used to connect to and drive the conveyor belt of the belt conveyor, bearing seats being connected to both ends of the active roller, respectively, the bearing seats being connected to the frame through a support plate and / or a mounting base; the mounting base being arranged on one side of the frame, and the output shaft of the motor being connected to one end of the active roller after passing through the first through hole.

[0016] Furthermore, one end of the roller shaft of the active roller is provided with an inner countersunk hole, and the output end of the motor is inserted into the inner countersunk hole and connected.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The motor mounting structure can float and non-rigidly mount the motor on the mounting base through the arrangement of the connecting plate, the connecting rod assembly and the floating mounting plate. The motor mounting structure itself is movable relative to the mounting base. This floating mounting arrangement can consume the vibration generated by the motor during the start and stop process, and prevent the vibration generated by the motor during the start and stop from causing the hard connection and / or the output shaft of the motor to break, thereby greatly improving the service life of the motor. In particular, for large and high-torque motors, this self-protection effect is more obvious; 2. The clearance groove can accommodate the lower end of the floating mounting plate, allowing it to float in the vertical plane where the clearance groove is located, and it will not separate from the clearance groove. The range where the slot is located; at the same time, the vibration range of the mounting plate is also limited in other directions to prevent the vibration range of the motor from being too large, which will cause the output end connected to the motor and the active roller to be broken; 3. The motor mounting structure also has the advantages of simple structure and easy installation and disassembly, which can reduce maintenance costs and maintenance difficulty; 4. The floating mounting plate and the connecting plate are connected by the connecting rod assembly, so that the floating mounting plate is also limited by the connecting rod assembly, and can float appropriately under the action of the connecting rod assembly to offset some unbalanced forces and vibrations; 5. Compared with the prior art through the connection of transmission belts, transmission chains and other structures, the direct drive connection method of the motor can not only reduce the axial size, but also make the entire mounting structure more compact, reducing space occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall schematic diagram of a motor mounting structure of the present utility model;

[0019] Figure 2 This is a front view of a motor mounting structure of the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the middle AA section;

[0021] Figure 4This is a schematic diagram of the structure of the installation base plate of the utility model;

[0022] Figure 5 This is a structural diagram of the floating mounting plate of the utility model;

[0023] Figure 6 This is a structural diagram of the connecting plate of the utility model;

[0024] Figure 7 This is a schematic structural diagram of the connecting rod assembly of the utility model;

[0025] Figure 8 This is a partial structural diagram of a belt conveyor for a screening machine of the present invention (the conveyor belt is not shown in the figure);

[0026] Figure 9 for Figure 8 The structural front view in ;

[0027] Figure 10 for Figure 9 Schematic diagram of the middle BB section;

[0028] In the figure: 1. Mounting base plate; 2. Connecting plate; 201. Second connecting ear plate; 3. Connecting rod assembly; 301. Connecting rod; 302. Steel plate; 303. Pin hole; 4. Floating mounting plate; 401. First through hole; 402. Sinking surface; 403. First connecting ear plate; 5. Motor; 6. Clearance slot; 7. Connecting seat; 8. Pin; 9. Fisheye bearing; 10. Frame; 11. Active roller; 12. Bearing seat; 13. Countersunk hole. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0031] like Figures 1 to 3 As shown, this embodiment provides a motor mounting structure, including a mounting base plate 1, a connecting plate 2 is provided on the mounting base plate 1, a connecting rod assembly 3 is rotatably connected to the connecting plate 2, the other end of the connecting rod assembly 3 is rotatably connected to a floating mounting plate 4, and the floating mounting plate 4 is movably arranged on the mounting base plate 1; the floating mounting plate 4 is used to connect and mount the motor 5, and the floating mounting plate 4 is also provided with a first through hole 401 for the output shaft of the motor 5 to pass through.

[0032] The motor mounting structure can float and non-rigidly mount the motor 5 on the mounting base through the arrangement of the connecting plate 2, the connecting rod assembly 3 and the floating mounting plate 4. The floating mounting plate 4 is not in a rigidly connected and fixed state, but is movable relative to the mounting base 1, so that the motor 5 can also move relative to the mounting base 1. This floating mounting arrangement can consume the vibration generated by the motor 5 during the start-stop process, and prevent the vibration generated by the motor during start-stop from causing the hard connection and / or the output shaft of the motor to break, thereby greatly improving the service life of the motor. In particular, for large and high-torque motors, this self-protection effect is more obvious.

[0033] This motor mounting structure also has the advantages of being simple in structure and easy to install and remove, which can reduce maintenance costs and difficulty. The installation base plate 1 is provided for connecting and installing the connecting plate 2 and limiting the position of the motor. It also facilitates the installation of the entire structure on a certain device so that the motor can play its role as a driving component.

[0034] Under normal conditions, the floating mounting plate 4 does not directly contact the mounting base plate 1, but the mounting base plate 1 will limit the range of movement (floating range) of the floating mounting plate 4 and will not allow it to leave the range of the mounting base plate 1; the floating mounting plate 4 is connected to the connecting plate 2 via the connecting rod assembly 3, so that the floating mounting plate 4 is also restricted by the connecting rod assembly 3 and can float appropriately under the action of the connecting rod assembly 3, especially under conditions of sudden changes in the stress state such as starting and stopping, the floating mounting plate will float or fluctuate appropriately to offset some unbalanced forces and vibrations.

[0035] Furthermore, the connecting plate 2 and the floating mounting plate 4 are arranged parallel to each other and spaced apart, and the connecting rod assembly 3 is connected above the connecting plate 2 and the floating mounting plate 4. This arrangement allows the floating mounting plate to float appropriately in the vertical plane and does not fluctuate in the direction of the motor output axis.

[0036] Further, combined Figure 4As shown, the mounting base plate 1 is provided with a clearance groove 6, and the lower end of the floating mounting plate 4 is disposed in the clearance groove 6. The clearance groove 6 can accommodate the lower end of the floating mounting plate 4, allowing it to float within the vertical plane where the clearance groove 6 is located, without departing from the range of the clearance groove 6. At the same time, the vibration range of the mounting plate is also limited in other directions, preventing excessive vibration of the motor from causing fracture of the output terminal connecting the motor to the active roller.

[0037] Further, combined Figure 5 As shown, a sunken surface 402 is provided on one side of the floating mounting plate 4, and the sunken surface 402 is used to connect to the motor 5. The first through hole 401 is provided in the middle of the sunken surface 402; a first connecting ear plate 403 is provided on the upper part of the floating mounting plate 4, and the first connecting ear plate 403 is connected to the connecting rod assembly 3 through a bearing (such as a fisheye bearing 9) and a pin 8.

[0038] The setting of the sunken surface 402 has a certain limiting effect, and can better connect with the end face of the motor 5 so as to stably connect and install the motor 5; the first connecting ear plate 403 is integrated with the main body, and it is a triangular structure similar to an arc, which can be easily connected to the connecting rod assembly and can move relative to it.

[0039] Similarly, if Figure 6 As shown, a second connecting ear plate 201 is provided on the upper part of the connecting plate 2 to facilitate connection with the connecting rod assembly 3. The second connecting ear plate 201 is connected to the connecting rod assembly 3 through a bearing (such as a fisheye bearing) and a pin 8.

[0040] The spherical sliding surface of the fisheye bearing allows it to function even when the pin and bearing hole are not concentric. This design allows the fisheye bearing to excel in oscillating (angular) motion. This design further reduces the rigid connection and reduces the risk of fracture in the hard connection caused by vibration during motor startup and shutdown.

[0041] The connecting plate 2 can be directly arranged on the mounting base 1, or can be indirectly installed on the mounting base 1 through a connecting seat 7 as needed.

[0042] Further, combined Figure 7 As shown, the connecting rod assembly 3 includes a pair of connecting rods 301 arranged in parallel, and the pair of connecting rods 301 are fixedly connected by a steel plate 302. The steel plate 302 can be one piece or multiple pieces, which are connected to form an H-shaped structure, with installation spaces formed at both ends. Pin shaft holes 303 are provided at both ends of the pair of connecting rods.

[0043] Through such an arrangement, the two connecting ear plates are clamped in the installation space through the cooperation of the pin 8, the fisheye bearing and the pin hole 303, which facilitates the clamping of the plate-like structure. Such a design also allows the connecting rod to have a certain range of movement relative to the floating mounting plate and the connecting plate. Example 2

[0044] like Figures 8-10 As shown, this embodiment provides a belt conveyor for a screening machine, which contains the motor mounting structure in Example 1; it includes a frame 10 arranged on the screening machine, and an active roller 11 is provided at one end of the frame 10. The active roller 11 is used to connect and drive the conveyor belt of the belt conveyor, and the two ends of the active roller 11 are respectively connected to bearing seats 12, and the bearing seats 12 are connected to the frame 10 through a support plate and / or a mounting base 1; the mounting base 1 is arranged on one side of the frame 10, and the output shaft of the motor 5 is connected to one end of the active roller 11 after passing through the first through hole.

[0045] The frame 10 is a component on the screening machine and can be used to connect and install a belt conveyor. The belt conveyor mainly includes at least one active roller, several driven rollers, and a conveyor belt arranged around the active roller and the driven rollers. The active roller is driven to rotate by a motor to drive the conveyor belt to operate.

[0046] The two ends of the active roller 11 are respectively connected to the bearings in the bearing seat 12, and the bearing seat 12 is connected and fixed to the frame. In practice, there can be a variety of connection and installation methods. One is that the mounting base is installed on one side of the frame, and the bearing seat on this side can be directly installed on the mounting base, sharing a plate, which saves more space and materials. A support plate (or a mounting base without a motor mounting structure) can be separately provided on the other side of the frame to support the bearing seat on the other side; the other is that the bearing seats on both sides are connected to the frame with a support plate respectively, and then the mounting base is provided on the outside.

[0047] When the mounting base is used to jointly support the motor and the bearing seat, the connecting plate can be set on the connecting seat and connected to the frame using the connecting seat. The connecting seat is a structure welded with multiple steel plates, which has high stability and is convenient for fixed connection with the frame.

[0048] Furthermore, an inner countersunk hole 13 is provided at one end of the roller shaft of the active roller 11, and the output shaft of the motor 5 is inserted into the inner countersunk hole 13 and connected. Compared with the connection through transmission belts, transmission chains and other structures in the prior art, this direct drive connection method can not only reduce the axial size, but also make the entire installation structure more compact and reduce space occupancy.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor mounting structure, characterized in that: It includes a mounting base plate, a connecting plate is provided on the mounting base plate, a connecting rod assembly is rotatably connected to the connecting plate, the other end of the connecting rod assembly is rotatably connected to a floating mounting plate, and the floating mounting plate is movably arranged on the mounting base plate; the floating mounting plate is used to connect and install the motor, and a first through hole is also provided on the floating mounting plate for the output shaft of the motor to pass through.

2. The motor mounting structure according to claim 1, wherein: The connecting plate and the floating mounting plate are arranged in parallel and spaced apart from each other, and the connecting rod assembly is connected above the connecting plate and the floating mounting plate.

3. The motor mounting structure according to claim 1, wherein: The installation base plate is provided with a clearance groove, and the lower end of the floating installation plate is arranged in the clearance groove.

4. The motor mounting structure according to claim 1, wherein: A sunken surface is provided on one side of the floating mounting plate, and the sunken surface is used to connect the motor. The first through hole is provided in the middle of the sunken surface; a first connecting ear plate is provided on the upper part of the floating mounting plate, and the first connecting ear plate is connected to the connecting rod assembly through a bearing and a pin.

5. The motor mounting structure according to claim 1, wherein: The connecting plate is directly arranged on the mounting base plate, or is installed on the mounting base plate through a connecting seat; a second connecting ear plate is provided on the upper part of the connecting plate, and the second connecting ear plate is connected to the connecting rod assembly through a bearing and a pin.

6. The motor mounting structure according to claim 1, wherein: The connecting rod assembly includes a pair of connecting rods arranged in parallel. The pair of connecting rods are fixedly connected by a steel plate, and installation spaces are formed at both ends. Pin holes are provided at both ends of the pair of connecting rods.

7. A belt conveyor for a screening machine having the motor mounting structure according to any one of claims 1 to 6, characterized in that: It includes a frame arranged on a screening machine, a driving roller is provided at one end of the frame, the driving roller is used to connect to and drive the conveyor belt of the belt conveyor, the two ends of the driving roller are respectively connected to bearing seats, the bearing seats are connected to the frame through a support plate and / or a mounting base; the mounting base is arranged on one side of the frame, and the output shaft of the motor is connected to one end of the driving roller after passing through the first through hole.

8. The belt conveyor for screening machine with a motor mounting structure according to claim 7, characterized in that: An inner countersunk hole is provided at one end of the roller shaft of the active roller, and the output shaft of the motor is inserted into the inner countersunk hole and connected.

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