Plate chain bucket elevator adopting double motors

Abstract

The utility model discloses a plate chain bucket elevator adopting double motors. The plate chain bucket elevator comprises a metal plate shell and an elevating chain, the cross rod is arranged at the upper part of the metal plate shell; the number of the mounting rods is two, and the two mounting rods are located on the two sides of the metal plate shell correspondingly; the number of the motors is two, and the two motors are respectively mounted on the corresponding mounting rods; a support arm is arranged between the mounting rod and the cross rod; and the two ends of the support arm are rotationally connected with the cross rod and the mounting rod respectively. The support arms reduce the transmission effect of motor vibration to the main body structure, and stress concentration and metal fatigue are avoided; the locking screw can limit rotation during assembly; and the mounting seat can be fixed, so that the situation that the locking screw is forgotten to be dismounted is prevented. And the rib plates reinforce the structural strength of the support arm and prevent the mounting rod from rotating at a large angle to damage the main body structure, so that the safety is improved. The fine adjustment screw facilitates fine adjustment of the position of the motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and particularly relates to a plate chain bucket elevator with double motors. Background Art

[0002] A plate chain elevator is a device widely used for vertically lifting materials, especially suitable for medium-sized and large-sized materials with abrasiveness. It adopts self-flow feeding and gravity discharging, has high production capacity, low energy consumption, excellent sealing performance, less environmental pollution, and meets environmental protection requirements. It consists of parts such as a motor, a reducer, a chain, a plate chain, a hopper, and a frame. The working principle is that the motor drives the chain through the reducer, and the chain drives the plate chain and the hopper to move upward together to lift the material to the required height.

[0003] The Chinese patent document with the publication number CN212638800U discloses a plastic mixing elevator, which includes a feeding part. The left side of the feeding part is communicated with a conveying pipeline. A conveying mechanism is arranged inside the conveying pipeline. The top of the conveying pipeline is fixedly connected with a discharging part. The conveying mechanism includes two motor frames. Motors are fixedly installed on the motor frames. The top inside the conveying pipeline is rotatably installed with two driving drums through two bearings respectively. The bottom inside the conveying pipeline is fixedly connected with two driven drums through a driven shaft. A conveyor belt is sleeved outside the driving drums and the driven drums. A plurality of conveying hoppers are fixedly connected to the outside of the conveyor belt. In this plastic mixing elevator, by arranging the conveying mechanism, the simultaneous conveying of two materials can be realized. Compared with the traditional single-material conveying, for the materials that need to be mixed, the working process is simplified and the working efficiency is improved.

[0004] In the above patent solution, the motors are directly installed on the elevator in a fixed manner, and the vibration of the motors will be directly transmitted to the main body structure of the elevator, which is extremely easy to cause stress concentration and result in metal fatigue damage. Especially when two motors are provided, the vibration will intensify, and at the same time, the vibration frequencies of the two motors will be superimposed, and the phenomena and hazards of stress concentration and metal fatigue will be more obvious and serious. Content of the Utility Model

[0005] In order to overcome the technical problem that in the prior art, for the two motors fixedly arranged on the elevator, the vibration generated is transmitted to the main body structure, which will cause stress concentration and then cause metal fatigue and damage; an object of the present utility model is to provide a plate chain bucket elevator with double motors. By arranging a support arm between the mounting rod for mounting the motor and the main body structure, and adopting a rotational connection mode at both ends of the support arm, the transmission effect of vibration is reduced, thereby avoiding causing metal fatigue.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A plate chain bucket elevator with dual motors, including a sheet metal housing, wherein a lifting chain is rotatably connected inside the sheet metal housing; a cross bar, which is arranged at the upper part of the sheet metal housing; mounting rods, there are two mounting rods and they are respectively located on both sides of the sheet metal housing, and one end of each mounting rod is arranged on the cross bar; motors, there are two motors and they are respectively installed on the corresponding mounting rods, and the two motors are respectively in transmission connection with the lifting chain; wherein, a support arm is arranged between the mounting rod and the cross bar; both ends of the support arm are respectively rotatably connected with the cross bar and the mounting rod; the two rotating shafts of the support arm are parallel and non-coincident with the rotating shaft of the lifting chain.

[0007] The support arm fixes the mounting rod in a soft support manner, and the vibration generated by the motor is attenuated when passing through the support arm, thereby reducing the vibration transmission effect on the main structure; at the same time, the occurrence of stress concentration and metal fatigue phenomena is also avoided.

[0008] Further, mounting seats are respectively rotatably connected to both ends of the support arm; the mounting seats are installed on the mounting rod or the cross bar; a rectangular block is arranged at one end of the mounting seat facing the support arm; a locking screw for restricting the rotation of the rectangular block is detachably connected to the support arm.

[0009] Although the support arm can reduce the vibration transmission, during the assembly process of the elevator, due to the rotational connection relationship, it is not easy to position and adjust the position of the screw holes. Especially for heavy-duty motors, they are often hoisted, and the position is not easy to adjust. Therefore, during assembly, the locking screw restricts the rotation of the rectangular block, that is, restricts the degree of freedom of the support arm, which is convenient for the installation of the support arm. After the installation is completed, removing the locking screw will improve the installation convenience.

[0010] Specifically, rotating holes for rotatably connecting with the rectangular block are respectively arranged at both ends of the support arm; stop holes are respectively arranged on both sides of the rotating hole on the support arm; the connection line of the rotating hole and the two stop holes on its both sides is perpendicular to the length direction of the support arm; the locking screw can be selectively located in the corresponding stop hole and abuts against the outer wall of the rectangular block.

[0011] When the locking screw abuts against the outer wall of the rectangular block, the mounting seat can still rotate within a small angle range, which is convenient for aligning the upper mounting hole of the mounting seat with the cross bar or the mounting rod.

[0012] Specifically, the locking screw can be selectively used to install the mounting seat on the mounting rod or the cross bar.

[0013] When assembling, removing the locking screw for installing the mounting seat can avoid the situation of forgetting to remove the locking screw, improving safety.

[0014] Further, the support arm includes two connecting plates and at least one rib plate disposed in the middle between the two connecting plates; the rectangular block is located between the two connecting plates.

[0015] Specifically, there are three rib plates, namely a central plate disposed along the length direction of the support arm and two limiting plates respectively located on both sides of the central plate; the rectangular block can optionally abut against the limiting plate.

[0016] When the rotation angle of the mounting seat and the support arm is too large, the rectangular block abuts against the limiting plate, restricting further rotation and improving safety. For example, when the input shaft of the lifting chain is being debugged, installed or breaks due to an accident, the mounting rod will not rotate at a large angle, causing the motor or gearbox to be thrown out or fall off.

[0017] Preferably, at least two fine-tuning threaded plates are provided on the mounting rod; the motor is disposed between the two fine-tuning threaded plates; a fine-tuning screw is threadedly connected to the fine-tuning threaded plate; the end of the fine-tuning screw abuts against the base of the motor.

[0018] By rotating the fine-tuning screw, the position of the motor is adjusted, extending the adjustment torque, that is, playing a lever role, facilitating fine-tuning of the position of the motor.

[0019] Further, a lower sprocket is longitudinally slidably connected to the lower part of the sheet metal housing; the lifting chain is drivingly connected to the lower sprocket; a counterweight is longitudinally slidably connected to the lower part of the sheet metal housing; the counterweight is disposed above the lower sprocket.

[0020] Specifically, two swing arms are symmetrically provided at the lower part of the sheet metal housing; one end of the swing arm is rotatably connected to the sheet metal housing; a synchronous groove is provided along the length direction at the other end of the swing arm; synchronous rods are respectively provided at both ends of the counterweight and are slidably connected to the corresponding synchronous grooves.

[0021] Specifically, screws are respectively provided at both ends of the lower sprocket; adjusting nuts are respectively provided at the upper and lower ends of the synchronous rod on the counterweight; the adjusting nuts are threadedly connected to the screws.

[0022] The counterweight presses down on the lower sprocket under the action of gravity to play a tensioning role. The two swing arms balance and adjust the two ends of the counterweight, so that the counterweight acts on the two ends of the lower sprocket in a horizontal posture, preventing the lifting chain from running off track during operation. And for the unequal acting forces on the two ends of the lower sprocket, fine adjustment can be carried out through the adjusting nut.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. By providing a support arm rotatably connected to the motor base and the main structure at both ends, the transmission effect of the motor vibration to the main structure is reduced, avoiding stress concentration and metal fatigue; especially for a hoist with a dual-motor structure, the failure rate can be effectively reduced and the service life can be significantly improved.

[0025] 2. The locking screws provided between the support arm and the mounting seat can limit the rotation between the support arm and the mounting seat during assembly, facilitating assembly and fixing; and can also be used to fix the mounting seat after removing the locking screws, preventing the situation of forgetting to remove the locking screws.

[0026] 3. The rib plates provided on the support arm can strengthen the structural strength of the support arm while also limiting the rotation angle of the mounting seat, preventing the large-angle rotation of the mounting rod from damaging the main structure and improving safety.

[0027] 4. Multiple fine-adjustment screws are provided on the mounting rod, facilitating fine adjustment of the position of the motor, and the operation process is also more labor-saving.

[0028] 5. The counterweight provides a tensioning force for the lower sprocket and can finely adjust the pressing degree at both ends of the lower sprocket, preventing the lifting chain from running off track during long-term operation. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the present utility model;

[0030] Figure 2 is a schematic diagram of the upper motor mounting structure of the present utility model;

[0031] Figure 3 is a schematic structural diagram of the lower lower sprocket and counterweight of the present utility model;

[0032] Figure 4 is a schematic structural diagram of the cross bar and mounting rod of the present utility model;

[0033] Figure 5 is a schematic structural diagram of the support arm and mounting seat of the present utility model.

[0034] In the figure: 1. Sheet metal housing; 2. Lifting chain; 31. Cross bar; 32. Mounting rod; 321. Fine-tuning threaded plate; 41. Motor; 42. Reducer; 43. Housing; 51. Support arm; 511. Rotation hole; 512. Stopping hole; 513. Rib plate; 52. Mounting seat; 521. Rectangular block; 53. Pin shaft; 61. Lower sprocket; 62. Counterweight; 621. Synchronizing rod; 63. Swing arm; 631. Synchronizing groove; 64. Screw; 65. Adjusting nut. Detailed implementation manners

[0035] Next, in combination with the accompanying drawings and the detailed implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0036] In the description of the present utility model, it should be noted that for the orientation terms, if there are terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationships are based on the orientation or position relationships shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0037] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise specifically and clearly defined.

[0038] In the present utility model, unless otherwise clearly specified and limited, terms such as "set", "installed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediate medium, and can be internally connected and communicated between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] See Figures 1 - 5, A plate chain bucket elevator with a dual-motor structure, comprising a sheet metal housing 1, within which a lifting chain 2 is rotatably connected; a cross bar 31 disposed at the upper part of the sheet metal housing 1; mounting rods 32, with two of them respectively located on both sides of the sheet metal housing 1, and one end of each mounting rod 32 is set on the cross bar 31; motors 41, with two of them respectively mounted on the corresponding mounting rods 32; speed reducers 42, with two of them respectively mounted on the corresponding mounting rods 32, the input end of the speed reducer 42 is in transmission connection with the adjacent motor 41, and the output end of the speed reducer 42 is in transmission connection with the lifting chain 2; a housing 43 is detachably connected between the motor 41 and the speed reducer 42.

[0040] There is a support arm 51 between the mounting rod 32 and the cross bar 31; both ends of the support arm 51 are respectively rotatably connected with a mounting seat 52; among them, the upper mounting seat 52 is mounted on the mounting rod 32, and the lower mounting seat 52 is mounted on the cross bar 31; the two rotating shafts of the support arm 51 are parallel and non-coincident with the rotating shaft of the lifting chain 2.

[0041] One end of the mounting seat 52 facing the support arm 51 is provided with a rectangular block 521; both ends of the support arm 51 are respectively provided with a rotating hole 511 for rotatably connecting with the rectangular block 521; a pin shaft 53 for rotatably connecting with the rectangular block 521 is arranged in the rotating hole 511.

[0042] Stop holes 512 are respectively arranged on both sides of the rotating hole 511 on the support arm 51; the connection line of the rotating hole 511 and the two stop holes 512 on its both sides is perpendicular to the length direction of the support arm 51; a locking screw is detachably connected in the stop hole 512; the locking screw can be selectively located in the corresponding stop hole 512 and abuts against the outer wall of the rectangular block 521, thereby restricting the rotation of the mounting seat 52 relative to the support arm 51.

[0043] Four stop holes 512 are respectively arranged on the upper and lower parts of the support arm 51; the locking screw can be selectively used to mount the mounting seat 52 on the mounting rod 32 or the cross bar 31.

[0044] The support arm 51 includes two connecting plates and three rib plates 513 arranged between the middles of the two connecting plates; among them, the rib plates 513 are respectively a central plate arranged along the length direction of the support arm 51 and two limiting plates respectively located on both sides of the central plate; the rectangular block 521 is located between the two connecting plates and on both sides of the three rib plates 513 respectively; the rectangular block 521 can be selectively abutted against the limiting plate.

[0045] Four fine-tuning threaded plates 321 that face each other in pairs are provided on the installation rod 32; the motor 41 is arranged between the two fine-tuning threaded plates 321; fine-tuning screws are threadedly connected to the fine-tuning threaded plates 321; the end of the fine-tuning screw abuts against the base of the motor 41.

[0046] A lower sprocket 61 is longitudinally slidably connected to the lower part of the sheet metal housing 1; the lifting chain 2 is drivingly connected to the lower sprocket 61; a counterweight 62 is longitudinally slidably connected to the lower part of the sheet metal housing 1; the counterweight 62 is arranged above the lower sprocket 61; two swing arms 63 are symmetrically arranged at the lower part of the sheet metal housing 1; one end of the swing arm 63 is rotatably connected to the sheet metal housing 1; a synchronous groove 631 is arranged along the length direction at the other end of the swing arm 63; synchronous rods 621 that are slidably connected to the corresponding synchronous grooves 631 are respectively arranged at both ends of the counterweight 62; screws 64 are respectively arranged at both ends of the lower sprocket 61; adjusting nuts 65 are respectively arranged at the upper and lower ends of the synchronous rods 621 on the counterweight 62; the adjusting nuts 65 are threadedly connected to the screws 64.

[0047] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A plate chain bucket elevator using dual motors, characterized in that: It comprises a sheet metal shell, in which a lifting chain is rotatably connected; A cross bar, the cross bar being arranged on the upper part of the sheet metal shell; A mounting rod, wherein two mounting rods are provided and are respectively located on two sides of the sheet metal shell, and one end of the mounting rod is arranged on the cross bar; Motor, the motors are provided with two motors and are respectively mounted on the corresponding mounting rods, and the two motors are respectively connected to the lifting chain in a transmission manner; Wherein, a support arm is arranged between the installation rod and the cross rod; two ends of the support arm are rotatably connected to the cross rod and the installation rod respectively; and two rotation axes of the support arm are parallel to and do not overlap with the rotation axis of the lifting chain.

2. The lifting machine according to claim 1, characterized in that: The two ends of the support arm are rotatably connected with mounting seats respectively; the mounting seat is installed on the mounting rod or the cross bar; a rectangular block is arranged at one end of the mounting seat facing the support arm; and a locking screw for limiting the rotation of the rectangular block is detachably connected to the support arm.

3. The lifting machine according to claim 2, characterized in that: The two ends of the support arm are respectively provided with rotating holes rotatably connected to the rectangular block; the support arm is respectively provided with stop holes on both sides of the rotating hole; the connecting line of the rotating hole and the stop holes on both sides thereof is perpendicular to the length direction of the support arm; the locking screw can be optionally located in the corresponding stop hole and abutted against the outer wall of the rectangular block.

4. The lifting machine according to claim 2, characterized in that: The locking screw may be optionally used to mount the mount on the mounting bar or the cross bar.

5. The lifting machine according to claim 2, characterized in that: The support arm includes two connecting plates and at least one rib plate arranged in the middle between the two connecting plates; the rectangular block is located between the two connecting plates.

6. The lifting machine according to claim 5, characterized in that: The rib plates include three plates, namely a central plate arranged along the length direction of the support arm and two limit plates respectively located on both sides of the central plate; the rectangular block can be selectively abutted against the limit plates.

7. The lifting machine according to any one of claims 1 to 6, characterized in that: At least two fine-tuning threaded plates are arranged on the mounting rod; the motor is arranged between the two fine-tuning threaded plates; a fine-tuning screw is threadedly connected to the fine-tuning threaded plate; and the end of the fine-tuning screw abuts against the base of the motor.

8. The hoist according to any one of claims 1 to 6, characterized in that: The lower part of the sheet metal shell is longitudinally slidably connected to a lower sprocket; the lifting chain is drivingly connected to the lower sprocket; the lower part of the sheet metal shell is longitudinally slidably connected to a counterweight block; the counterweight block is arranged above the lower sprocket.

9. The lifting machine according to claim 8, characterized in that: Two swing arms are symmetrically arranged at the lower part of the sheet metal shell; one end of the swing arm is rotatably connected to the sheet metal shell; the other end of the swing arm is provided with a synchronization groove along the length direction; and synchronization rods slidably connected to the corresponding synchronization grooves are respectively arranged at both ends of the counterweight block.

10. The lifting machine according to claim 9, characterized in that: Screw rods are respectively arranged at the two ends of the lower sprocket; adjusting nuts are respectively arranged at the upper and lower ends of the synchronous rod on the counterweight; and the adjusting nuts are threadedly connected with the screw rod.

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