Dragging mechanism for bottom supporting plate of coal mining machine
By setting a stop sleeve and a clamp on the connecting pin of the coal mining machine drag mechanism, the problem of easy wear and difficult adjustment of the stress position of the drag mechanism in the prior art is solved, and the wear reduction of the wire rope and flexible adjustment of the drag position are achieved, and the drag effect is improved.
Patent Information
- Application Number
- CN202421584739.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The drag mechanism of the existing coal miner is prone to wear and is not easy to adjust the drag stress position.
By setting a stop sleeve and a squeezing sleeve on the connecting pin, the wire rope is put on the stop sleeve, and the wear reduction of the wire rope and the adjustment of the drag position are achieved.
Reduces wear of the wire rope, adjusts the drag position, and improves the drag effect.
Smart Images
Figure CN222668184U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a dragging mechanism for a bottom support plate of a coal mining machine, belonging to the technical field of cable dragging of coal mining machines. Background Art
[0002] Coal mining machine is a large and complex system integrating mechanical, electrical and hydraulic systems. The floor climbing coal mining machine is used on the gently inclined long wall mining face. The coal loading part and the coal baffle of this coal mining machine have good coal loading effect. The original fixing method of this coal mining machine on the coal mining face is to use a perforated plate with a steel wire rope to achieve dragging, but this method is easy to wear and difficult to adjust the dragging force position. Utility Model Content
[0003] In order to solve the problems existing in the prior art, the utility model can selectively set a stopper sleeve and a clamping sleeve on the connecting pin shaft, and the wire rope is sleeved on the stopper sleeve, which can reduce the wear of the wire rope and adjust the dragging position of the wire rope.
[0004] The technical solution adopted by the utility model is a dragging mechanism for a bottom support plate of a coal mining machine, comprising a connecting pin, a stopper sleeve, a clamping sleeve and ear plates arranged at intervals on the bottom support plate, the ear plates are provided with pin holes, the connecting pin passes through the pin holes, the stopper sleeve and the clamping sleeve are sleeved on the outer wall of the connecting pin, and the stopper sleeve and the clamping sleeve can be selectively arranged between any two adjacent ear plates.
[0005] Furthermore, an end cover is buckled on the ear plate at the top, and the end cover is used to prevent the connecting pin shaft from separating from the ear plate.
[0006] Furthermore, the end cover is fixed to the ear plate by screws.
[0007] Furthermore, the baffle sleeve includes a cylinder and a baffle, the baffle is radially arranged at both ends of the cylinder and protrudes from the outer wall of the cylinder, and the cylinder and the baffle are integrally formed.
[0008] Furthermore, the stop sleeve is located above the clamping sleeve and fits tightly.
[0009] Furthermore, the material of the stopper sleeve and the clamping sleeve is 40Cr.
[0010] The utility model discloses a dragging mechanism for a bottom support plate of a coal mining machine, which has the beneficial effect that a stop sleeve and a clamping sleeve can be selectively arranged on a connecting pin shaft, and a steel wire rope is sleeved on the stop sleeve, so that the wear of the steel wire rope can be reduced and the dragging position of the steel wire rope can be adjusted. Different dragging positions result in different forces and different dragging effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 The figure shows a partial enlarged schematic diagram of a dragging mechanism structure for a bottom support plate of a coal mining machine from a top view;
[0013] Figure 2 Shown is a schematic diagram of the bottom support plate structure of the coal mining machine.
[0014] As shown in the figure: 1. bottom support plate; 2. ear plate; 3. connecting pin; 4. stopper sleeve; 5. ferrule; 6. end cover; 7. screw; 8. bottom plate climbing coal mining machine; 41. cylinder; 42. baffle. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0016] In order to further understand the content of the utility model, this technical solution is further explained below in conjunction with specific implementation methods.
[0017] Example 1: Figures 1-2 As shown, this embodiment provides a dragging mechanism for a bottom support plate of a coal mining machine. The bottom support plate 1 is used to carry a bottom climbing coal mining machine 8. It should be noted that the bottom climbing coal mining machine 8 is an existing product available on the market, and its specific structure diagram is not shown in FIG. Figure 1The dragging mechanism includes a connecting pin 3, a stopper sleeve 4, a clamping sleeve 5, and an ear plate 2 arranged at intervals on the bottom support plate 1. The ear plate 2 is provided with a pin hole, and the connecting pin 3 passes through the pin hole. The stopper sleeve 4 and the clamping sleeve 5 are sleeved on the outer wall of the connecting pin 3, and the stopper sleeve 4 and the clamping sleeve 5 can be selectively arranged between any two adjacent ear plates 2. The stopper sleeve 4 is located above the clamping sleeve 5 and fits tightly. The material of the stopper sleeve 4 and the clamping sleeve 5 is 40Cr, which has good mechanical properties and toughness. The ear plate 2 at the top is buckled with an end cover 6, which is used to prevent the connecting pin 3 from detaching from the ear plate 2. Specifically, the end cover 6 is fixed to the ear plate 2 by screws 7.
[0018] Specifically, the stopper sleeve 4 includes a cylinder 41 and a baffle 42. The baffle 42 is radially arranged at both ends of the cylinder 41 and protrudes from the outer wall of the cylinder 41. The cylinder 41 and the baffle 42 are integrally formed. The steel wire rope is wound between the baffles 42, that is, wound around the outer wall of the cylinder 41, so that the steel wire rope is locked and fixed without being disengaged. In addition, the positions of the stopper sleeve 4 and the clamping sleeve 5 can be adjusted according to actual conditions, such as Figure 1 As shown, the stopper sleeve 4 and the clamping sleeve 5 are arranged between the topmost ear plate 2 and the second topmost ear plate 2, and the stopper sleeve 4 and the clamping sleeve 5 are just stuck between two adjacent ear plates without displacement along the direction of the connecting pin shaft 3, and dragging is most convenient and labor-saving at this time.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A dragging mechanism for a bottom support plate of a coal mining machine, characterized in that: The invention comprises a connecting pin shaft (3), a stopper sleeve (4), a clamping sleeve (5) and an ear plate (2) arranged at intervals on a bottom support plate (1); the ear plate (2) is provided with a pin hole, the connecting pin shaft (3) passes through the pin hole, the stopper sleeve (4) and the clamping sleeve (5) are sleeved on the outer wall of the connecting pin shaft (3), and the stopper sleeve (4) and the clamping sleeve (5) can be selectively arranged between any two adjacent ear plates (2).
2. A dragging mechanism for a bottom support plate of a coal mining machine according to claim 1, characterized in that: The baffle sleeve (4) comprises a cylinder (41) and a baffle (42); the baffle (42) is radially arranged at both ends of the cylinder (41) and protrudes from the outer wall of the cylinder (41); the cylinder (41) and the baffle (42) are integrally formed.
3. A dragging mechanism for a bottom support plate of a coal mining machine according to claim 1, characterized in that: The stopper sleeve (4) is located above the clamping sleeve (5) and fits tightly.
4. A dragging mechanism for a bottom support plate of a coal mining machine according to claim 1, characterized in that: The material of the stopper sleeve (4) and the clamping sleeve (5) is 40Cr.
5. A dragging mechanism for a bottom support plate of a coal mining machine according to claim 1 or 2, characterized in that: An end cover (6) is buckled on the ear plate (2) at the top end, and the end cover (6) is used to prevent the connecting pin shaft (3) from being separated from the ear plate (2).
6. A dragging mechanism for a bottom support plate of a coal mining machine according to claim 5, characterized in that: The end cover (6) is fixed on the ear plate (2) by means of screws (7).