Step-hole bucket elevator chain

Abstract

The utility model discloses a stepped hole formula bucket elevator chain, including hopper installation chain board, be equipped with the stepped hole on the hopper installation chain board, be equipped with the pin shaft in the stepped hole, the cross section of the big hole of stepped hole is non -circular shape, the pin head of pin shaft cooperates with the stepped hole, the pin head does not exceed the outside of stepped hole, compares with prior art, can reduce production cost, reduce raw material and energy consumption.

Description

Technical Field

[0001] This utility model relates to the technical field of bucket elevator chains, and in particular to the technical field of a stepped hole type bucket elevator chain. Background Technology

[0002] The current chain structure is mainly a T-pin structure, where the pin step is higher than the chain plate plane. During installation, a large gasket is welded onto the hopper to avoid the step position.

[0003] like Figure 3 As shown, a method using a flat chain plate with enlarged gaskets is adopted. The thickness of the large gaskets avoids the high step of the pin shaft, thus achieving installation. The disadvantages of this solution are: 1. The small spacing of the same chain leads to a reduction in the bucket width, thereby affecting the bucket capacity; 2. Eight large gaskets need to be welded to both sides of the hopper, increasing production costs and raw material consumption.

[0004] like Figure 4 As shown, a 16-type chain with a shaped concave plate is used. A concave step is formed by heating the flat connecting plate to avoid interference. The disadvantages of this solution are that heating the flat plate increases energy consumption and requires a custom mold. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the existing technology and to propose a stepped hole type bucket elevator chain that can reduce production costs and reduce the consumption of raw materials and energy.

[0006] To achieve the above objectives, this utility model proposes a stepped hole type bucket elevator chain, including a bucket mounting chain plate, wherein the bucket mounting chain plate is provided with a stepped hole, and a pin is inserted into the stepped hole. The cross-section of the larger hole of the stepped hole is non-circular, and the pin head of the pin is engaged with the stepped hole, and the pin head does not extend beyond the outer side of the stepped hole.

[0007] Preferably, the hopper mounting chain plate is provided with hopper mounting holes distributed in a rectangular pattern.

[0008] Preferably, the large hole of the stepped hole includes two planar hole walls and two arc-shaped hole walls, and the two ends of the two planar hole walls are respectively connected by the two arc-shaped hole walls.

[0009] Preferably, the lower end of the pin of the pin shaft is provided with a connecting part, and an outer chain plate is sleeved on the connecting part. The cross-section of the connecting part is D-shaped.

[0010] Preferably, the connecting part is provided with an elastic stop end to block the outside of the outer chain plate.

[0011] Preferably, a bushing is fitted on the pin between the outer chain plate and the hopper mounting chain plate, and two inner chain plates are provided on the bushing, with a roller fitted on the bushing between the two inner chain plates.

[0012] Preferably, the lower end of the connecting part is provided with a groove, the pin is provided with an axial oil passage whose lower end communicates with the groove, the circumferential surface of the pin is provided with an oil groove, the pin is provided with a radial oil passage for communication between the oil groove and the axial oil passage, and the lower end of the axial oil passage is provided with an oil injection nozzle.

[0013] Preferably, the groove has a frustum-shaped structure.

[0014] The beneficial effects of this utility model are as follows: By providing a stepped hole on the hopper mounting chain plate, and inserting a pin through the stepped hole, the cross-section of the larger hole of the stepped hole is non-circular, and the pin head of the pin is engaged with the stepped hole, the pin head does not extend beyond the outer side of the stepped hole. Compared with the prior art, this utility model can reduce production costs and reduce the consumption of raw materials and energy.

[0015] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural schematic diagram of a stepped hole type bucket elevator chain according to the present invention; Figure 2 This is a top view of a stepped hole type bucket elevator chain according to this utility model; Figure 3 This is a schematic diagram of the installation method of a traditional hopper using a flat chain plate with enlarged gaskets; Figure 4 This is a schematic diagram of the installation method of a traditional hopper using a formed plate chain.

[0017] In the diagram: 1-Hopper mounting chain plate, 2-Stepped hole, 3-Pin shaft, 4-Hopper mounting hole, 5-Outer chain plate, 6-Elastic stop end, 7-Shaft sleeve, 8-Inner chain plate, 9-Roller, 10-Groove, 11-Axial oil passage, 12-Oil groove, 13-Oil injection nozzle, 14-Radial oil passage, 15-Large gasket, 16-Concave plate, 21-Flat hole wall, 22-Arc-shaped hole wall, 31-Pin head, 32-Pin rod, 33-Connecting part. Detailed Implementation

[0018] See Figure 1 , Figure 2This utility model discloses a stepped hole type bucket elevator chain, including a bucket mounting chain plate 1, a stepped hole 2 on the bucket mounting chain plate 1, a pin 3 passing through the stepped hole 2, the cross-section of the large hole of the stepped hole 2 is non-circular, the pin head 31 of the pin 3 cooperates with the stepped hole 2, and the pin head 31 does not extend beyond the outside of the stepped hole 2.

[0019] The hopper mounting chain plate 1 is provided with hopper mounting holes 4 arranged in a rectangular pattern.

[0020] The large hole of the stepped hole 2 includes two planar hole walls 21 and two arc-shaped hole walls 22, and the two ends of the two planar hole walls 21 are respectively connected by the two arc-shaped hole walls 22.

[0021] The lower end of the pin 32 of the pin shaft 3 is provided with a connecting part 33, and an outer chain plate 5 is sleeved on the connecting part 33. The cross-section of the connecting part 33 is D-shaped.

[0022] The connecting part 33 is provided with an elastic stop end 6 to block the outside of the outer chain plate 5.

[0023] A bushing 7 is fitted on the pin 32 between the outer chain plate 5 and the hopper mounting chain plate 1. Two inner chain plates 8 are provided on the bushing 7, and a roller 9 is fitted on the bushing 7 between the two inner chain plates 8.

[0024] The lower end of the connecting part 33 is provided with a groove 10, the pin 32 is provided with an axial oil passage 11 whose lower end communicates with the groove 10, the circumferential surface of the pin 32 is provided with an oil groove 12, the pin 32 is provided with a radial oil passage 14 for communicating with the oil groove 12 and the axial oil passage 11, and the lower end of the axial oil passage 11 is provided with an oil injection nozzle 13.

[0025] The groove 10 has a frustum-shaped structure.

[0026] The working process of this utility model: This utility model discloses a stepped hole type bucket elevator chain. During operation, the bucket is mounted on the chain plate 1, which has a stepped hole 2. A pin 3 passes through the stepped hole 2. The cross-section of the large hole of the stepped hole 2 is non-circular. The pin head 31 of the pin 3 cooperates with the stepped hole 2. The pin head 31 does not extend beyond the outer side of the stepped hole 2. Compared with the prior art, this can reduce production costs and reduce the consumption of raw materials and energy.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A stepped-hole type bucket elevator chain, characterized in that: Includes a hopper mounting chain plate (1), the hopper mounting chain plate (1) is provided with a stepped hole (2), a pin (3) is inserted in the stepped hole (2), the cross-section of the large hole of the stepped hole (2) is non-circular, the pin head (31) of the pin (3) is engaged with the stepped hole (2), and the pin head (31) does not extend beyond the outside of the stepped hole (2).

2. The stepped hole type bucket elevator chain as described in claim 1, characterized in that: The hopper mounting chain plate (1) is provided with hopper mounting holes (4) arranged in a rectangular pattern.

3. The stepped hole type bucket elevator chain as described in claim 1, characterized in that: The large hole of the stepped hole (2) includes two planar hole walls (21) and two arc-shaped hole walls (22), and the two ends of the two planar hole walls (21) are connected by the two arc-shaped hole walls (22).

4. The stepped hole type bucket elevator chain as described in claim 1, characterized in that: The lower end of the pin (32) of the pin shaft (3) is provided with a connecting part (33), and an outer chain plate (5) is sleeved on the connecting part (33). The cross-section of the connecting part (33) is D-shaped.

5. The stepped hole type bucket elevator chain as described in claim 4, characterized in that: The connecting part (33) is provided with an elastic stop (6) to block the outside of the outer chain plate (5).

6. The stepped hole type bucket elevator chain as described in claim 4, characterized in that: A bushing (7) is fitted on the pin (32) between the outer chain plate (5) and the hopper mounting chain plate (1). Two inner chain plates (8) are provided on the bushing (7). A roller (9) is fitted on the bushing (7) between the two inner chain plates (8).

7. The stepped hole type bucket elevator chain as described in claim 4, characterized in that: The lower end of the connecting part (33) is provided with a groove (10), the pin (32) is provided with an axial oil passage (11) whose lower end communicates with the groove (10), the circumferential surface of the pin (32) is provided with an oil groove (12), the pin (32) is provided with a radial oil passage (14) for communicating with the oil groove (12) and the axial oil passage (11), and the lower end of the axial oil passage (11) is provided with an oil injection nozzle (13).

8. The stepped hole type bucket elevator chain as described in claim 7, characterized in that: The groove (10) has a frustum-shaped structure.

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