Lifting device for extending middle part of belt conveyor

Abstract

The utility model relates to a lifting device for extending the middle part of a belt conveyor, which comprises a cross beam and a lifting carrier roller frame, the first end of the cross beam is hinged with a belt conveyor bearing section rack, the second end of the cross beam is fixedly connected with the lifting carrier roller frame, and a telescopic element is further arranged between the cross beam and the belt conveyor bearing section rack; in the initial state, an upper-layer belt and a lower-layer belt of the belt conveyor reach the belt conveyor bearing section carrier roller frame through the lifting carrier roller frame, and the upper-layer belt and the lower-layer belt extend in the horizontal state. When the middle part of the belt conveyor is extended, the telescopic element carries out extension operation to drive the lifting carrier roller frame and the cross beam to rotate around the hinged position of the cross beam and the belt conveyor bearing section rack so as to lift the upper-layer belt and the lower-layer belt. The labor intensity is high, and workers are squeezed by falling of the belt.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine equipment, in particular to a lifting device for extending the middle part of a belt conveyor. Background Art

[0002] The belt conveyor is one of the main transportation equipment for comprehensive coal mining. It has many advantages, such as low cost, low maintenance cost, and large conveying capacity. As the comprehensive excavation working face continues to advance, the middle part of the belt conveyor needs to be extended in a timely manner. During the extension of the middle part, the upper and lower belts sag, affecting the installation space. It is necessary to manually lift the upper and lower belts separately to insert the middle legs of the belt conveyor and then install the bottom rollers. After lowering the lower belt, lift the upper belt again and install the upper rollers. The single extension length often reaches 30-50m. It is necessary to lift the upper and lower belts multiple times, which is time-consuming and labor-intensive. There is a safety risk of falling belts and injuring workers. Utility Model Content

[0003] In view of the various shortcomings of the existing technology, a lifting device for extending the middle part of the belt conveyor is proposed to solve the technical problems of manually lifting the upper and lower belts when extending the middle part of the belt conveyor in the existing technology, which has high labor intensity and the belt falling and injuring the staff.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A lifting device for extending the middle section of a belt conveyor, comprising a crossbeam and a lifting roller frame, wherein a first end of the crossbeam is hingedly connected to a frame of a belt conveyor bearing section, a second end of the crossbeam is fixedly connected to the lifting roller frame, and a telescopic element is further provided between the crossbeam and the frame of the belt conveyor bearing section;

[0006] In the initial state, the upper belt and the lower belt of the belt conveyor pass through the lifting roller frame to reach the belt conveyor bearing section roller frame, and the upper belt and the lower belt extend in a horizontal state; when the middle part of the belt conveyor is extended, the telescopic element extends, driving the lifting roller frame and the crossbeam to rotate around the hinge between the crossbeam and the belt conveyor bearing section frame, causing the lifting roller frame to be higher than the belt conveyor bearing section roller frame to lift the upper belt and the lower belt.

[0007] The technical solution is further configured such that two cross beams are provided, and the two cross beams are respectively located on different sides of the lifting roller frame.

[0008] This technical solution is further configured such that a first mounting hole is provided at the first end of the crossbeam, a second mounting hole is provided at the top of the belt conveyor bearing section frame, a pin is provided between the first mounting hole and the second mounting hole, and the second end of the crossbeam is connected to the lifting roller frame by bolts.

[0009] The technical solution is further configured such that a connecting seat is provided at the bottom of the belt conveyor bearing section frame, the connecting seat is connected to the fixed end of the telescopic element, and a fixing seat is provided on the crossbeam, the fixing seat is connected to the telescopic end of the telescopic element.

[0010] The technical solution is further configured such that a first mounting groove for accommodating the crossbeam is provided on the top of the fixing seat, the crossbeam is connected to the first mounting groove by bolts, and a first ear seat connected to the telescopic end of the telescopic element is provided on the bottom of the fixing seat.

[0011] The present technical solution is further configured such that a connecting plate is provided at the bottom of the belt conveyor bearing section frame, a second mounting groove for accommodating the connecting plate is provided at the first end of the connecting seat, the connecting plate and the second mounting groove are connected by bolts, and a second ear seat connected to the fixed end of the telescopic element is provided at the second end of the connecting seat.

[0012] The technical solution is further configured such that the lifting roller frame is provided with a lifting upper roller for lifting the upper belt and a lifting lower roller for lifting the lower belt, and the lifting upper roller and the lifting lower roller have the same structure as the upper roller and the lower roller on the belt conveyor bearing section roller frame.

[0013] The technical solution is further configured as follows: the lower lifting roller is a straight roller, three upper lifting rollers are provided, and the three upper lifting rollers form a trough roller.

[0014] The beneficial effects of the utility model are:

[0015] The lifting roller frame is driven to rise through the telescopic elements and crossbeams to raise the upper belt and the lower belt, leaving sufficient space for the installation of the middle part of the belt conveyor. There is no need to manually lift the upper belt and the lower belt, which reduces labor intensity and prevents the belt from falling and injuring the workers. The lifting roller frame can play a role in belt transition. Telescopic elements are set on both sides of the lifting roller frame. By adjusting the telescopic length of the two telescopic elements, the belt deviation is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a lifting device for extending the middle portion of a belt conveyor in an embodiment of the present invention;

[0017] Figure 2This is a schematic diagram of the assembly of the lifting device for extending the middle portion of the belt conveyor and the bearing section of the belt conveyor in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the lifting device for extending the middle part of the belt conveyor in the initial state;

[0019] Figure 4 This is a schematic diagram of a lifting device used to extend the middle section of a belt conveyor when the middle section of the belt conveyor is extended.

[0020] In the attached figure: 1. crossbeam; 2. telescopic element; 3. fixed seat; 4. connecting seat; 5. lifting roller frame; 6. lifting upper roller; 7. lifting lower roller; 8. belt conveyor bearing section frame; 9. upper belt; 10. lower belt. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following is a clear and complete description of the technical solution of the present invention in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional terms used are used to illustrate rather than limit the invention.

[0022] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0023] According to an embodiment of the present invention, a lifting device for extending the middle part of a belt conveyor is provided. Figure 1 and Figure 2 , comprising a crossbeam 1 and a lifting roller frame 5, wherein the first end of the crossbeam 1 is hinged to the belt conveyor load-bearing section frame 8, the second end of the crossbeam 1 is fixedly connected to the lifting roller frame 5, and a telescopic element 2 is further provided between the crossbeam 1 and the belt conveyor load-bearing section frame 8;

[0024] See also Figure 3 In the initial state, the upper belt 9 and the lower belt 10 of the belt conveyor pass through the lifting roller frame 5 to reach the belt conveyor bearing section roller frame, and the upper belt 9 and the lower belt 10 extend in a horizontal state; please refer to Figure 4 When the middle part of the belt conveyor is extended, the telescopic element 2 is extended, driving the lifting roller frame 5 and the crossbeam 1 to rotate around the hinge between the crossbeam 1 and the belt conveyor bearing section frame 8, causing the lifting roller frame 5 to be higher than the belt conveyor bearing section roller frame to lift the upper belt 9 and the lower belt 10.

[0025] It should be noted that the telescopic element 2 and the crossbeam 1 drive the roller frame 5 to rise, so as to raise the upper belt 9 and the lower belt 10, leaving sufficient space for the installation of the middle part of the belt conveyor. There is no need to manually raise the upper belt 9 and the lower belt 10, which reduces labor intensity and avoids the belt falling and injuring the staff; raising the roller frame 5 can play the role of belt transition.

[0026] In the lifting device for the middle part of the extended belt conveyor of this embodiment, please refer to Figure 1 and Figure 2 There are two cross beams 1, and the two cross beams 1 are respectively located on different sides of the lifting roller frame 5. Correspondingly, there are also two telescopic elements 2.

[0027] It should be noted that telescopic elements 2 are provided on both sides of the lifting roller frame 5 to improve the stability of the lifting roller frame 5. At the same time, by adjusting the telescopic length of the two telescopic elements 2, the belt deviation is adjusted.

[0028] Specifically, the telescopic element 2 is set at an angle. In this embodiment, the telescopic element 2 adopts a jack, and the oil pressure adopts a belt conveyor bearing section pump station, which is controlled by a manual operating valve or a solenoid valve. After a two-way lock, it is connected to the upper and lower chambers of the jack to realize remote control of the jack.

[0029] In the lifting device for the middle part of the extended belt conveyor of this embodiment, please refer to Figure 1 and Figure 2 A first mounting hole is provided at the first end of the crossbeam 1, a second mounting hole is provided at the top of the belt conveyor bearing section frame 8, a pin is provided between the first mounting hole and the second mounting hole, and the second end of the crossbeam 1 is connected to the lifting roller frame 5 by bolts.

[0030] It should be noted that the lifting roller frame 5 is connected to the belt conveyor bearing section frame 8 through the crossbeam 1. At the same time, the lifting roller frame 5 and the crossbeam 1 can rotate synchronously around the hinge between the crossbeam 1 and the belt conveyor bearing section frame 8. The crossbeam 1 is made of steel plate, which is locally sourced to save material costs.

[0031] In the lifting device for the middle part of the extended belt conveyor of this embodiment, please refer to Figure 1 and Figure 2 A connecting seat 4 is provided at the bottom of the belt conveyor bearing section frame 8, and the connecting seat 4 is connected to the fixed end of the telescopic element 2. A fixing seat 3 is provided on the beam 1, and the fixing seat 3 is connected to the telescopic end of the telescopic element 2.

[0032] Specifically, a first mounting groove for accommodating the beam 1 is provided on the top of the fixing seat 3 , and the beam 1 is connected to the first mounting groove by bolts. A first ear seat connected to the telescopic end of the telescopic element 2 is provided on the bottom of the fixing seat 3 .

[0033] Similarly, a connecting plate is provided at the bottom of the belt conveyor bearing section frame 8, and a second mounting groove for accommodating the connecting plate is opened at the first end of the connecting seat 4. The connecting plate and the second mounting groove are connected by bolts, and the second end of the connecting seat 4 is provided with a second ear seat connected to the fixed end of the telescopic element 2.

[0034] In the lifting device for the middle part of the extended belt conveyor of this embodiment, please refer to Figures 1 to 4 The lifting roller frame 5 is provided with a lifting upper roller 6 for lifting the upper belt 9 and a lifting lower roller 7 for lifting the lower belt 10. The lifting upper roller 6 and the lifting lower roller 7 have the same structure as the upper roller and lower roller on the belt conveyor bearing section roller frame.

[0035] Specifically, the lower lifting roller 7 is a straight roller, and three upper lifting rollers 6 are provided, and the three upper lifting rollers 6 form a trough roller.

[0036] It should be noted that the raised upper roller 6 and the raised lower roller 7 have the same structure as the upper roller and lower roller on the belt conveyor's load-bearing section roller frame, which helps the upper belt 9 and the lower belt 10 to smoothly transition from the raised roller frame 5 to the belt conveyor's load-bearing section roller frame.

[0037] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A lifting device for extending the middle part of a belt conveyor, characterized in that: It includes a crossbeam and a lifting roller frame, wherein the first end of the crossbeam is hinged to the belt conveyor bearing section frame, the second end of the crossbeam is fixedly connected to the lifting roller frame, and a telescopic element is further provided between the crossbeam and the belt conveyor bearing section frame; In the initial state, the upper belt and the lower belt of the belt conveyor pass through the lifting roller frame to reach the belt conveyor bearing section roller frame, and the upper belt and the lower belt extend in a horizontal state; when the middle part of the belt conveyor is extended, the telescopic element extends, driving the lifting roller frame and the crossbeam to rotate around the hinge between the crossbeam and the belt conveyor bearing section frame, causing the lifting roller frame to be higher than the belt conveyor bearing section roller frame to lift the upper belt and the lower belt.

2. The device for raising the middle portion of the extended belt conveyor according to claim 1, characterized in that: There are two cross beams, and the two cross beams are respectively located on different sides of the lifting roller frame.

3. The device for raising the middle portion of the extended belt conveyor according to claim 2, characterized in that: A first mounting hole is provided at the first end of the crossbeam, a second mounting hole is provided at the top of the belt conveyor bearing section frame, a pin is provided between the first mounting hole and the second mounting hole, and the second end of the crossbeam is connected to the lifting roller frame by bolts.

4. The device for raising the middle portion of an extended belt conveyor according to claim 1, wherein: A connecting seat is provided at the bottom of the belt conveyor bearing section frame, and the connecting seat is connected to the fixed end of the telescopic element. A fixing seat is provided on the beam, and the fixing seat is connected to the telescopic end of the telescopic element.

5. The device for raising the middle portion of the extended belt conveyor according to claim 4, characterized in that: The top of the fixing seat is provided with a first mounting groove for accommodating the crossbeam, the crossbeam is connected to the first mounting groove by bolts, and the bottom of the fixing seat is provided with a first ear seat connected to the telescopic end of the telescopic element.

6. The device for raising the middle portion of the extended belt conveyor according to claim 4, characterized in that: A connecting plate is provided at the bottom of the belt conveyor bearing section frame, a first end of the connecting seat is provided with a second mounting groove for accommodating the connecting plate, the connecting plate and the second mounting groove are connected by bolts, and a second end of the connecting seat is provided with a second ear seat connected to the fixed end of the telescopic element.

7. The device for raising the middle portion of an extended belt conveyor according to claim 1, wherein: The lifting roller frame is provided with a lifting upper roller for lifting the upper belt and a lifting lower roller for lifting the lower belt. The lifting upper roller and the lifting lower roller have the same structure as the upper roller and lower roller on the belt conveyor bearing section roller frame.

8. The device for raising the middle portion of the extended belt conveyor according to claim 7, characterized in that: The lower lifting roller is a straight roller, and three upper lifting rollers are provided, and the three upper lifting rollers form a trough roller.

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