Tail sliding plate device of plate chain elevator

Abstract

The utility model discloses a plate chain elevator tail sliding plate device which comprises a bearing seat, a tail wheel, a sliding plate, a shell and a sliding plate tensioning part, the sliding plate tensioning part comprises a second nut arranged on the shell above the bearing seat, a second lead screw is installed on the second nut, a connecting rod is installed on the second lead screw, and a rotating shaft is arranged on the side, close to the shell, of the connecting rod. A bearing is mounted on the rotating shaft and rolls on the sliding plate; a spring and a third nut are installed on the other side of the second lead screw, the spring is sleeved outside the second lead screw, and the third nut is in threaded connection with the second lead screw. Compared with the prior art, different functions of the sliding plate are achieved through the sliding plate tensioning part and the positioning ring, and sealing of the sliding plate and a shell and positioning of the sliding plate and a tail wheel can be guaranteed. And meanwhile, the sliding plate is tensioned by rolling friction instead of sliding friction, so that the sliding plate can move up and down more easily. And the tensioning force is achieved through the spring, buffering can be achieved while the tensioning force is guaranteed, and the tensioning effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate chain elevators, in particular to a tail slide device of a plate chain elevator. Background Art

[0002] Plate chain elevator is a relatively advanced lifting equipment in China. It can be widely used to lift various materials. Plate chain elevator is also commonly used in cement production and processing. The plate chain elevator consists of moving parts wrapped around the upper drive sprocket and the lower redirecting sprocket. Under the action of the drive device, the drive sprocket drives the chain plate to perform a rotary circular motion, and the material is lifted from the bottom to the top.

[0003] In the prior art, the slide structure of the plate chain hoist relies on the tensioning screw installed on the bearing seat to adjust the tightness of the slide and the shell to achieve the sealing effect; at the same time, it also relies on the four screws to drive the slide and the tail wheel of the bearing seat to position and move synchronously, see the attached Figure 1 During use, problems often occur, such as loose screws causing the slide seal to fail and leak, the slide not moving synchronously with the tail wheel, and the screw being too tight causing the slide and tail wheel not to move. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a plate chain hoist tail slide device, which realizes the tensioning of the plate chain hoist tail slide and the shell to achieve the purpose of sealing, and the synchronous movement of the tail slide and the tail wheel.

[0005] In order to achieve this technical purpose, the utility model adopts the following scheme:

[0006] A slide device at the tail of a plate chain hoist includes a bearing seat, a tail wheel, a slide, a shell and a slide tensioning part. The slide tensioning part includes a fixing assembly arranged on the shell. The fixing assembly consists of two second nuts located at the same horizontal position. A second screw is installed on the second nut. A connecting rod is installed on the second screw. A rotating shaft is provided on the side of the connecting rod close to the shell. A bearing is installed on the rotating shaft. The bearing rolls on the slide; a spring and a third nut are installed on the side of the connecting rod away from the shell. The spring is sleeved on the outside of the second screw. The third nut is threadedly connected to the second screw.

[0007] Furthermore, an annular boss is provided at the seal between the slide and the tail wheel, and a positioning ring is installed on the side of the bearing seat close to the slide. The inner diameter of the positioning ring is larger than the outer diameter of the boss, and the positioning ring is clamped with the boss.

[0008] Furthermore, a support assembly is provided on the side of the connecting rod close to the shell, and the rotating shaft is installed on the support assembly; one end of the rotating shaft is T-shaped, and the other end is provided with an opening, and a T-pin is provided in the opening; the bearing is installed on the rotating shaft, and retaining rings are provided on both sides of the bearing.

[0009] Furthermore, two groups of fixing components are provided, which are respectively located on the upper and lower sides of the bearing seat.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] This utility model utilizes a slide assembly at the tail end of a chain hoist, utilizing a slide tensioning element and a positioning ring to achieve different functions. This ensures a seal between the slide and the housing, as well as positioning between the slide and the tail wheel. Furthermore, the slide is tensioned using rolling friction instead of sliding friction, facilitating its upward and downward movement. The tensioning force is achieved through a spring, ensuring both tension and buffering, achieving a perfect tensioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the tail slide device of the plate chain hoist in the prior art;

[0013] Figure 2 This is a schematic structural diagram of the tail slide device of the plate chain elevator according to an embodiment of the present utility model;

[0014] Figure 3 for Figure 2 Left view of;

[0015] Figure 4 for Figure 3 Top view of the tensioning part of the middle slide;

[0016] The markings in the figure are: 1. Bearing seat; 2. Tail wheel; 3. Slide plate; 4. Housing; 5. First screw; 6. First nut; 7. Top seat; 8. Second nut; 9. Second screw; 10. Bearing; 101. Snap ring; 11. Rotating shaft; 111. T-pin; 12. Connecting rod; 121. Support assembly; 13. Spring; 14. Third nut; 15. Boss; 16. Positioning ring. DETAILED DESCRIPTION

[0017] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0018] See also Figures 1 to 4The present invention provides a technical solution: a tail slide device for a chain hoist, comprising a bearing seat 1, a tail wheel 2, a slide 3, a housing 4, and a slide tensioning portion. The slide tensioning portion includes a fixing assembly mounted on the housing 4. The fixing assembly comprises two second nuts 8 positioned at the same horizontal position. Two sets of fixing assemblies are provided, one on the upper and lower sides of the bearing seat 1. A second screw 9 is mounted on the second nut 8, and a connecting rod 12 is mounted on the second screw 9. The second screw 9 is located at both ends of the connecting rod 12. In this embodiment, the connecting rod 12 is made of square steel. Two groups of support components 121 are provided on the side of the connecting rod 12 close to the shell 4, and a rotating shaft 11 is installed on the support component 121. One end of the rotating shaft 11 is T-shaped, and the other end is provided with an opening. A T-shaped pin 111 is provided in the opening to prevent the rotating shaft 11 from running out. A bearing 10 is installed on the rotating shaft 11, and a retaining ring 101 is provided on both sides of the bearing 10. After installation, the bearing 10 can roll on the skateboard 3; a spring 13 and a third nut 14 are installed on the side of the connecting rod 12 away from the shell 4. The spring 13 is sleeved on the outside of the second screw 9, and the third nut 14 is threadedly connected to the second screw 9.

[0019] An annular boss 15 is provided at the sealing position between the slide plate 3 and the tail wheel 2 , and a positioning ring 16 is welded and installed at the corresponding position on the side of the bearing seat 1 close to the slide plate 3 . The inner diameter of the positioning ring 16 is slightly larger than the outer diameter of the boss 15 , and the positioning ring 16 is snap-fitted with the boss 15 .

[0020] The present invention utilizes a two-part structure, the slide tensioning portion and the positioning ring 16, to achieve distinct functions for the slide 3, ensuring a seal between the slide 3 and the housing 4 and positioning between the slide 3 and the tail wheel 2. Furthermore, the tensioning of the slide 3 utilizes rolling friction instead of sliding friction, facilitating the upward and downward movement of the slide 3. Furthermore, the tensioning force is applied by the spring 13, ensuring both tension and buffering, achieving a perfect tensioning effect.

[0021] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A plate chain hoist tail slide device, comprising a bearing seat (1), a tail wheel (2), a slide plate (3), a housing (4) and a slide plate tensioning part, characterized in that: The slide tensioning part includes a fixed assembly arranged on the housing (4), the fixed assembly consists of two second nuts (8) located at the same horizontal position, a second screw (9) is installed on the second nut (8), a connecting rod (12) is installed on the second screw (9), a rotating shaft (11) is provided on the side of the connecting rod (12) close to the housing (4), a bearing (10) is installed on the rotating shaft (11), and the bearing (10) rolls on the slide (3); a spring (13) and a third nut (14) are installed on the side of the connecting rod (12) away from the housing (4), the spring (13) is sleeved on the outside of the second screw (9), and the third nut (14) is threadedly connected to the second screw (9).

2. The tail slide device of the plate chain hoist according to claim 1, characterized in that: An annular boss (15) is provided at the sealing portion between the slide plate (3) and the tail wheel (2), and a positioning ring (16) is installed on the side of the bearing seat (1) close to the slide plate (3). The inner diameter of the positioning ring (16) is larger than the outer diameter of the boss (15), and the positioning ring (16) is engaged with the boss (15).

3. The tail slide device of the plate chain hoist according to claim 1, characterized in that: A support assembly (121) is provided on a side of the connecting rod (12) close to the housing (4), and the rotary shaft (11) is mounted on the support assembly (121); one end of the rotary shaft (11) is T-shaped, and the other end is provided with an opening, and a T-shaped pin (111) is provided in the opening; the bearing (10) is mounted on the rotary shaft (11), and retaining rings (101) are provided on both sides of the bearing (10).

4. The tail slide device of the plate chain hoist according to claim 1, characterized in that: Two groups of fixing components are provided, which are respectively located on the upper and lower sides of the bearing seat (1).

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