Reciprocating type lifting goods elevator

Abstract

The utility model discloses a reciprocating type lifting goods elevator which comprises a machine room bearing steel frame, a beam at the end of the machine room bearing steel frame is provided with a lift car lifting driving motor, and the output end of the lift car lifting driving motor is in transmission connection with a driven chain wheel A and a driven chain wheel B which are installed on a longitudinal steel beam on one side of the machine room bearing steel frame through a reduction gear box. The lifting supporting plate is in driving connection with a plurality of driving connection points of the driving chain wheel group A, the driving chain wheel group B, the driving chain wheel group C and the driving chain wheel group D, so that the lift car main body generates more uniform lifting tension in the lifting process of the lifting bracket, and the lifting bracket is stressed at multiple points, so that the lift car main body is kept in a horizontal lifting state; meanwhile, the span spacing of all stress points of the lifting bracket is shortened, the horizontal stability of reciprocating lifting of the lift car body is kept, the vibration phenomenon caused by friction collision between the lift car body and the inner wall of an elevator shaft is avoided, and the load capacity and the lifting safety of the reciprocating type lifting goods elevator are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting equipment, and in particular relates to a reciprocating lifting freight elevator. Background Art

[0002] A reciprocating elevator is a type of lifting equipment that transports goods up and down. It is often used to lift or lower materials when transporting on conveyor belts at different heights in current logistics sorting lines. The reciprocating elevator performs vertical reciprocating in and out of the warehouse to achieve the purpose of large-scale production of automated logistics transportation. It is one of the important conveying equipment in the automated logistics transportation system. The existing chain-type reciprocating elevator has a complex structure and is prone to tilting or falling when transporting goods. It has low stability, is not conducive to the transportation of goods, leads to low safety, and is inconvenient to maintain and repair.

[0003] To this end, a chain-type reciprocating elevator with the announcement number "CN216836671U" includes a driving mechanism and a support frame, wherein the driving mechanism includes a driving motor, a first chain and a first sprocket, a lifting bracket is provided inside the support frame, the other end of the first chain is fixedly connected to a first counterweight, a transmission assembly is provided on one side of the lifting bracket, the transmission assembly includes a second chain and a second sprocket, the other end of the second chain is fixedly connected to a second counterweight, auxiliary assemblies are also provided on the left and right sides of the support frame, a carrying device is provided on the top of the lifting bracket, and a ladder is also provided on one side of the support frame. The invention effectively improves the stability of cargo transportation, prevents cargo from tilting or falling during transportation, and is beneficial to ensuring the safety of staff. At the same time, a ladder is provided on one side of the support frame to facilitate maintenance and overhaul.

[0004] However, for the above-mentioned chain-type reciprocating elevator, although the stability of the movement of the lifting bracket is effectively improved by setting a transmission component, the lifting bracket drives the second chain connected to it to move when it moves up and down, and the second chain engages with the second sprocket to achieve that when the lifting bracket moves upward, the second counterweight moves downward, or when the lifting bracket moves downward, the second counterweight moves upward, there are still the following more obvious defects during use: the above-mentioned drive structure for lifting and lowering the car only uses the chain to lift the four corner points of the lifting bracket when lifting and lowering the car. Since the span distance between the chain lifting points is large, it is easy for the car to swing unsteadily during rapid lifting due to the large span of the lifting points, thereby causing collision, friction and shaking between the car and the inner wall of the elevator shaft. Utility Model Content

[0005] The purpose of this utility model is to provide a reciprocating freight elevator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reciprocating freight elevator, comprising:

[0007] The machine room bearing steel frame, the cross beam at the end of the machine room bearing steel frame is provided with a car lifting drive motor for driving the freight elevator to lift and lower, the output end of the car lifting drive motor is connected to the driven sprocket A and the driven sprocket B installed on the longitudinal steel beam on one side of the machine room bearing steel frame through a reduction gear box, one end of the transmission rod of the driven sprocket A and the driven sprocket B is connected to the driving sprocket group A for driving and lifting the car, and the transmission rod at one end of the driving sprocket group A is connected to the driving sprocket group B for enhancing the lifting strength of the freight elevator, the longitudinal steel beam on the other side of the machine room bearing steel frame is respectively provided with a driving sprocket group C and a driving sprocket group D for lifting and driving one side of the car, and the bottom side of the machine room bearing steel frame is provided with a car body through the car rail steel frame.

[0008] Preferably, the car lifting drive motor is connected to the reduction gearbox, and a driving sprocket is provided on the output shaft at both ends of the reduction gearbox, and a transmission chain is provided on each driving sprocket, and one section of the transmission chain is connected to the driven sprocket A and the driven sprocket B. Multiple lifting points can be added to the lifting bracket on the car body to enhance the stability of the car lifting.

[0009] Preferably, a buffer is provided on one side of the bottom end of the car body, which slides on the car track steel frame, and a speed limiter is provided on one side of the buffer, which controls the speed of the car body lifting and lowering, so that the car reaches a uniform speed during lifting and lowering, making the lifting of the car body more stable and increasing the load capacity.

[0010] Preferably, a ground-bearing steel plate is provided at the bottom of the car track steel frame, and the buffer is installed on one side of the ground-bearing steel plate, so that the buffer can be used to stop vibration and cushion the car when it descends to the bottom.

[0011] Preferably, the drive sprocket group A, the drive sprocket group B and the drive sprocket group C, and the drive sprocket group D each include two drive sprockets, thereby enhancing the stability of the elevator car.

[0012] Preferably, a lifting bracket is provided at the bottom of the car body, and the lifting bracket is connected to the drive sprocket group A, drive sprocket group B and drive sprocket group C, drive sprocket group D through a chain to achieve reciprocating lifting of the car freight elevator and improve the stability of its own lifting.

[0013] Compared with the existing technology, the technical effects and advantages of the utility model are as follows: the reciprocating freight elevator, through the reciprocating lifting between the car lifting drive motor, reduction gearbox, driven sprocket A, driven sprocket B and driving sprocket group A, driving sprocket group B and driving sprocket group C, driving sprocket group D on the machine room load-bearing steel frame, each with two driving sprockets, and the lifting bracket at the bottom of the car body, makes the lifting support plate and the driving sprocket group A, driving sprocket group B and driving sprocket group C, driving sprocket group D have multiple driving connection points, so that the lifting pulling force generated by the car body during lifting by the lifting bracket is more uniform, and the lifting bracket is subjected to side force at multiple points to keep the car body in a horizontal lifting state, while shortening the span spacing of each force point of the lifting bracket, so that the car body can maintain horizontal stability during reciprocating lifting, and there will be no vibration caused by friction and collision between the car body and the inner wall of the elevator shaft, and the load capacity and lifting safety of the reciprocating freight elevator are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0016] In the figure: 1. Machine room bearing steel frame; 2. Car lifting drive motor; 3. Reduction gearbox; 4. Driven sprocket A; 5. Drive sprocket group A; 6. Drive sprocket group B; 7. Drive sprocket group C; 8. Drive sprocket group D; 9. Car track steel frame; 10. Car body; 11. Driving sprocket; 12. Transmission chain; 13. Driven sprocket B; 14. Buffer; 15. Speed ​​limiter; 16. Ground bearing steel plate; 17. Lifting bracket. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-2 The utility model provides a technical solution: a reciprocating freight elevator, comprising:

[0019] The machine room bearing steel frame 1, the crossbeam at the end of the machine room bearing steel frame 1 is provided with a car lifting drive motor 2 for driving the lifting freight elevator to lift and lower, driving the reduction gearbox 3 to rotate, the output end of the car lifting drive motor 2 is connected to the driven sprocket A4 and the driven sprocket B13 installed on the longitudinal steel beam on one side of the machine room bearing steel frame 1 through the reduction gearbox 3, the driven sprocket A4 and the driven sprocket B13 can drive each drive sprocket group to rotate, the driven sprocket A4 and the driven sprocket B13 are both connected to the drive sprocket group A5 for driving and lifting the car, driving the drive sprocket group B6 to lift and rotate,

[0020] The transmission rod at one end of the driving sprocket group A5 is connected to the driving sprocket group B6 for enhancing the lifting strength of the freight elevator, driving two driving ends of the lifting bracket 17 to perform lifting and lowering. The longitudinal steel beams on the other side of the machine room bearing steel frame 1 are respectively provided with a driving sprocket group C7 and a driving sprocket group D8 for lifting and driving one side of the car, driving the other four driving points of the lifting bracket 17 to perform lifting actions. The bottom side of the machine room bearing steel frame 1 is provided with a car body 10 through the car rail steel frame 9, so that the reciprocating lifting of the car body 10 is realized to lift and lower the goods.

[0021] The car lift drive motor 2 is connected to a reduction gearbox 3. Drive sprockets 11 are mounted on the output shafts at both ends of the reduction gearbox 3. Drive sprockets 11 are each equipped with a transmission chain 12. A section of the transmission chain 12 is connected to driven sprockets A4 and B13. A buffer 14 is mounted on one side of the bottom end of the car body 10, sliding on the car rail steel frame 9. This buffer 14 reduces sudden impacts during operation, helping to reduce wear on elevator components and extending the life of the elevator. Frequent impacts can damage components such as the guide rails, car, and control system, and the buffer 14 mitigates this wear. A speed limiter 15 is mounted on one side of the buffer 14 to control the speed of the car body 10. The speed limiter 15 is typically connected to the elevator control system. It can send a signal to the control system to inform it of the current speed. When the speed approaches the overspeed threshold, the control system can make adjustments in advance, such as reducing the output power of the traction motor, to attempt to smoothly reduce the car speed.

[0022] A ground-bearing steel plate 16 is provided at the bottom of the car track steel frame 9, and the buffer 14 is installed on one side of the ground-bearing steel plate 16. The drive sprocket group A5, the drive sprocket group B6, the drive sprocket group C7, and the drive sprocket group D8 all include two drive sprockets, which can be connected to multiple drive points of the lifting bracket 17 to enhance the lifting stability and load weight. A lifting bracket 17 is provided at the bottom of the car body 10, and the lifting bracket 17 is connected to the drive sprocket group A5, the drive sprocket group B6, the drive sprocket group C7, and the drive sprocket group D8 by a chain.

[0023] Specifically, when in use, the cargo to be transported is placed on the car body 10 on the lifting bracket 17, and the car lifting drive motor 2 is started to drive the reduction gearbox 3 to rotate, and the reduction gearbox 3 drives the driving sprocket 11 to rotate, and the rotation of the driving sprocket 11 drives the driven sprocket A4 and the driven sprocket B13 to rotate via the transmission chain 12, so that the driving sprocket group A5, the driving sprocket group B6 and the driving sprocket group C7 and the driving sprocket group D8 rotate synchronously, and the driving sprocket group A5, the driving sprocket group B6 and the driving sprocket group C7 and the driving sprocket group D8 are driven and connected to each driving point at the bottom of the car body 10 through the chain, so that the lifting bracket 17 drives the car body The body 10 is raised and lowered, thereby realizing the reciprocating lifting of the goods, and the driving connection between the lifting bracket 17 and the driving connection points of the drive sprocket group A5, the drive sprocket group B6, the drive sprocket group C7, and the drive sprocket group D8 makes the lifting pulling force generated by the car body 10 more uniform when it is lifted and lowered by the lifting bracket 17, and the lifting bracket 17 is subjected to force at multiple points to keep the car body 10 in a horizontal lifting state, and at the same time shortens the span spacing of each force point of the lifting bracket 17, so that the car body 10 can maintain horizontal stability when it is lifted and lowered reciprocatingly, and there will be no vibration caused by friction and collision between the car body 10 and the inner wall of the elevator shaft, and the load capacity and lifting safety of the reciprocating freight elevator are improved.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reciprocating freight elevator, characterized in that: include: A machine room bearing steel frame (1) is provided with a car lifting drive motor (2) for lifting and lowering a freight elevator, and an output end of the car lifting drive motor (2) is connected to a driven sprocket A (4) and a driven sprocket B (13) installed on a longitudinal steel beam on one side of the machine room bearing steel frame (1) through a reduction gear box (3). One end of the transmission rod of the driven sprocket A (4) and the driven sprocket B (13) is connected to a driving sprocket group A (5) for lifting and lowering the car, and the transmission rod at one end of the driving sprocket group A (5) is connected to a driving sprocket group B (6) for enhancing the lifting strength of the freight elevator. A driving sprocket group C (7) and a driving sprocket group D (8) for lifting and driving one side of the car are respectively provided on the longitudinal steel beam on the other side of the machine room bearing steel frame (1). A car body (10) is provided on the bottom side of the machine room bearing steel frame (1) through a car track steel frame (9).

2. A reciprocating freight elevator according to claim 1, characterized in that: The car lifting drive motor (2) is connected to the reduction gear box (3) in a transmission manner, and the output shafts at both ends of the reduction gear box (3) are provided with driving sprockets (11), and the driving sprockets (11) are both provided with transmission chains (12), and one section of the transmission chain (12) is connected to a driven sprocket A (4) and a driven sprocket B (13).

3. The reciprocating freight elevator according to claim 1, characterized in that: A buffer (14) is provided on one side of the bottom end of the car body (10) and slides on the car track steel frame (9), and a speed limiter (15) is provided on one side of the buffer (14) for controlling the speed of the car body (10) when it is raised or lowered.

4. A reciprocating freight elevator according to claim 3, characterized in that: A ground bearing steel plate (16) is provided at the bottom of the car track steel frame (9), and the buffer (14) is installed on one side of the ground bearing steel plate (16).

5. The reciprocating freight elevator according to claim 1, characterized in that: Each of the drive sprocket set A (5), the drive sprocket set B (6), the drive sprocket set C (7), and the drive sprocket set D (8) includes two drive sprockets.

6. The reciprocating freight elevator according to claim 1, characterized in that: A lifting bracket (17) is provided at the bottom of the car body (10), and the lifting bracket (17) is connected to the driving sprocket group A (5), the driving sprocket group B (6), the driving sprocket group C (7), and the driving sprocket group D (8) through a chain.

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