Self-moving tailstock drawbar structure
By designing a foldable self-propelled tail pull rod structure, the problem of inconvenience in using self-propelled tail pullers in coal mine roadways was solved, enabling smooth passage in narrow spaces and improving equipment operating efficiency.
Patent Information
- Application Number
- CN202521380435.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-02
AI Technical Summary
The existing self-propelled tail puller haul rod is a single piece, which is inconvenient to operate in the narrow coal mine environment.
A self-moving tail pull rod structure was designed, including short rods, long rods and a bending mechanism. The bending mechanism allows the short rods and long rods to be folded to adapt to the narrow space of coal mine tunnels.
It enables the self-moving tail section to pass smoothly in narrow coal mine roadways, improving ease of use and equipment operating efficiency.
Smart Images
Figure CN224677133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of self-moving tail section technology, and in particular to a self-moving tail section mud-pulling rod structure. Background Technology
[0002] Self-moving tail section is a mobile device used in conjunction with belt conveyors and transfer machines in fully mechanized mining and tunneling faces of coal mines. It is suitable for high-yield and high-efficiency working faces in coal mines. It enables the belt to advance quickly and has functions such as height adjustment, deviation adjustment and self-movement. The self-moving tail section is mainly composed of head end frame, trolley, tail end frame, intermediate base frame, floating idler roller group, drum lubrication device, tail end frame, hydraulic control system, etc.
[0003] Considering the special working environment of coal mines, mud-pulling rods are components used to clean or handle mud, slag, and other debris near the tail of the machine. They are usually installed at the front of the head or tail end frame to keep the belt and rollers clean and prevent mud and other debris from damaging the equipment or affecting its operating efficiency. The original self-moving tail mud-pulling rods were single-piece mud-pulling rods, which were very inconvenient for mine operators to use due to the narrow roadways. Therefore, this utility model proposes a self-moving tail mud-pulling rod structure to solve the above problems. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a self-moving tail mud-pulling rod structure to solve the problem that in the prior art, the self-moving tail mud-pulling rod is a single mud-pulling rod, which is very inconvenient for mine operators to use due to the narrowness of the roadway.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a self-moving tail mud-pulling rod structure, including a short rod, a long rod and a stop bar, one end of the short rod is provided with a long rod, one end of the long rod is welded with a stop bar, a bending mechanism is provided between the short rod and the long rod, and the other end of the short rod is provided with a fixing seat.
[0006] A further improvement is made in that: the bending mechanism includes a socket, a plug, a connecting bolt, and a nut; one end of the short rod is fixedly connected to the socket; one end of the long rod is fixedly connected to the plug; the socket is fixedly connected to the inside; one end of the connecting bolt passes through the interior of the plug and is hinged thereto; and the outer side of the connecting bolt is threaded with a nut.
[0007] A further improvement is that: the top and bottom of the socket are symmetrically provided with circular grooves, the nut is located inside the circular grooves, and the height of the nut is less than the height of the circular grooves.
[0008] A further improvement is that: one end of both the short rod and the long rod is provided with a groove, the outer wall of the plug and the socket are respectively engaged with the inner wall of the two grooves, and the inside of the plug is provided with a strip groove.
[0009] A further improvement is that: the top and bottom ends of the connecting bolt are symmetrically fixed with stop blocks, the width of the stop blocks is greater than the width of the strip groove, and the bottom end of the connecting bolt extends through the interior of the strip groove.
[0010] A further improvement is that: the short rod and the long rod are each provided with a threaded surface at one end; the short rod is provided with a threaded sleeve on its outer side; and the inner wall of the threaded sleeve is threadedly connected to the adjacent ends of the short rod and the long rod respectively through the threaded surface.
[0011] Further improvements include: the fixing base includes a fixing plate, screw holes and reinforcing plates; the end of the short rod away from the socket is fixedly connected to the fixing plate; multiple reinforcing plates are provided between one end of the short rod and the fixing plate; multiple screw holes are provided at equal intervals on the outer side of the fixing plate; screws are provided inside the screw holes; and the fixing plate is detachably connected to the tail of the self-propelled machine by screws.
[0012] The beneficial effects of this utility model are as follows: the threaded sleeve between the rotating short rod and the long rod moves to the short rod, which pulls the short rod and the long rod to move in different directions, so that the short rod and the long rod separate from each other. The insert can rotate around the connecting bolt, and the connecting bolt and the insert are connected to the short rod and the long rod respectively, causing the short rod and the long rod to be perpendicular to each other. Finally, the nut is turned down to move to the locking position, which is used to bend the entire mud-pulling rod to reduce its length, so that the self-moving tail can pass through the narrow part of the coal mine tunnel. Attached Figure Description
[0013] Figure 1 This is the front view of the present invention;
[0014] Figure 2 This is a schematic diagram of the bending state of this utility model;
[0015] Figure 3 This utility model Figure 2 A magnified view of part A;
[0016] Figure 4 This is a schematic diagram of the short rod structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the long rod structure of this utility model;
[0018] Figure 6 This is a schematic diagram of the connecting bolt structure of this utility model.
[0019] Among them: 1. Short rod; 2. Long rod; 3. Stop bar; 4. Socket; 5. Insert block; 6. Connecting bolt; 7. Nut; 8. Strip groove; 9. Threaded surface; 10. Threaded sleeve; 11. Fixing plate; 12. Screw hole; 13. Reinforcing plate; 14. Stop block; 15. Groove. Detailed Implementation
[0020] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0021] according to Figure 1-6 As shown in the figure, this embodiment proposes a self-propelled tail jacking rod structure, including a short rod 1, a long rod 2, and a stop bar 3. One end of the short rod 1 is provided with the long rod 2, and one end of the long rod 2 is welded with the stop bar 3. A bending mechanism is provided between the short rod 1 and the long rod 2. The other end of the short rod 1 is provided with a fixed seat. When in use, the jacking rod is installed on the self-propelled tail jack via a fixed plate to clean or handle mud, slag, and other debris near the tail jack through the long rod 2 and the stop bar 3. When the self-propelled tail jack moves to a narrow part of the coal mine tunnel, the bending mechanism can drive the long rod 2 to rotate 90° around one end of the short rod 1, so that the entire jacking rod bends to reduce its length, allowing the self-propelled tail jack to pass through the narrow part of the coal mine tunnel.
[0022] Both the short rod 1 and the long rod 2 have a threaded surface 9 at their adjacent ends. The short rod 1 has a threaded sleeve 10 on its outer side. The inner wall of the threaded sleeve 10 is threadedly connected to the adjacent ends of the short rod 1 and the long rod 2 through the threaded surface 9. Rotating the threaded sleeve 10 between the short rod 1 and the long rod 2 moves it onto the short rod 1, which pulls the short rod 1 and the long rod 2 to move in different directions, causing the short rod 1 and the long rod 2 to separate from each other.
[0023] The bending mechanism includes a socket 4, a plug 5, a connecting bolt 6, and a nut 7. One end of the short rod 1 is fixedly connected to the socket 4, and one end of the long rod 2 is fixedly connected to the plug 5. The connecting bolt 6 is fixedly connected inside the socket 4. One end of the connecting bolt 6 passes through the interior of the plug 5 and is hinged to it. The nut 7 is threadedly connected to the outside of the connecting bolt 6. The plug 5 can rotate around the connecting bolt 6. The connecting bolt 6 and the plug 5 are respectively connected to the short rod 1 and the long rod 2, causing the short rod 1 and the long rod 2 to be perpendicular to each other. Finally, the nut 7 is turned down to move to the locking position, so as to bend the entire mud-pulling rod to reduce its length, so that the self-moving tail can pass through the narrow part of the coal mine tunnel.
[0024] The socket 4 has symmetrical circular grooves at its top and bottom, and the nut 7 is located inside the circular grooves. The height of the nut 7 is less than the height of the circular grooves.
[0025] Both the short rod 1 and the long rod 2 have a groove 15 at one end, and the outer walls of the plug 5 and the socket 4 are respectively engaged with the inner walls of the two grooves 15.
[0026] Tighten the nut 7 on the outside of the connecting bolt 6 and move it upward so that the nut 7 no longer clamps the plug 5. Rotate the short rod 1 and the long rod 2 to make them parallel to each other. Move the short rod 1 and the long rod 2 together and insert the socket 4 and the plug 5 into the groove 15 inside the short rod 1 or the long rod 2 respectively. Because the plug 5 has a strip groove 8 inside, the connecting bolt 6 will not obstruct the movement of the socket 4 and the plug 5. Rotate the threaded sleeve 10 on the outside of the short rod 1 and move it towards the long rod 2. Move one end of the threaded sleeve 10 onto the long rod 2. At this time, the short rod 1 and the long rod 2 are completely connected together and their positions are parallel to each other and restored to their original length.
[0027] The insert 5 has a strip groove 8 inside. The top and bottom ends of the connecting bolt 6 are symmetrically fixed with a stop block 14. The width of the stop block 14 is greater than the width of the strip groove 8. The bottom end of the connecting bolt 6 passes through the inside of the strip groove 8. The stop block 14 can block the path of the connecting bolt 6 moving up and down in the strip groove 8, so as to prevent the connecting bolt 6 from suddenly falling off the socket 4.
[0028] The mounting base includes a mounting plate 11, screw holes 12, and reinforcing plates 13. The end of the short rod 1 furthest from the socket 4 is fixedly connected to the mounting plate 11. Multiple reinforcing plates 13 are provided between one end of the short rod 1 and the mounting plate 11. Multiple screw holes 12 are provided at equal intervals on the outer side of the mounting plate 11. Screws are provided inside the screw holes 12. The mounting plate 11 is detachably connected to the tail of the self-propelled machine by screws. The screw holes 12 are aligned with the mounting holes on the tail of the self-propelled machine, and the screws are screwed into the screw holes 12. The screws pass through the interior of the mounting plate 11 and the tail of the self-propelled machine to fix the mud-pulling rod to the tail of the self-propelled machine. The reinforcing plates 13 can increase the connection between the mounting plate 11 and the short rod 1 and improve the support capacity of the mounting plate 11 for the short rod 1.
[0029] The mud-pulling rod, when the threaded sleeve 10 between the short rod 1 and the long rod 2 is rotated, moves onto the short rod 1, pulling the short rod 1 and the long rod 2 in different directions, causing the short rod 1 and the long rod 2 to separate from each other. The insert 5 can rotate around the connecting bolt 6, and the connecting bolt 6 and the insert 5 are connected to the short rod 1 and the long rod 2 respectively, causing the short rod 1 and the long rod 2 to be perpendicular to each other. Finally, the nut 7 is turned down to lock the position, which is used to bend the entire mud-pulling rod to reduce its length, so that the self-moving tail can pass through the narrow parts of the coal mine tunnel.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A self-propelled tail mud-pulling rod structure, comprising a short rod (1), a long rod (2), and a stop rod (3), characterized in that: One end of the short rod (1) is provided with a long rod (2), one end of the long rod (2) is welded with a stop bar (3), a bending mechanism is provided between the short rod (1) and the long rod (2), and a fixed seat is provided at the other end of the short rod (1); The bending mechanism includes a socket (4), a plug (5), a connecting bolt (6), and a nut (7). One end of the short rod (1) is fixedly connected to the socket (4), and one end of the long rod (2) is fixedly connected to the plug (5). The socket (4) is fixedly connected to the inside of the socket (4). One end of the connecting bolt (6) passes through the inside of the plug (5) and is hinged to it. The connecting bolt (6) is threaded with a nut (7) on the outside.
2. The self-propelled tail mud-pulling rod structure according to claim 1, characterized in that: The socket (4) has symmetrical circular grooves at the top and bottom, and the nut (7) is located inside the circular groove. The height of the nut (7) is less than the height of the circular groove.
3. The self-propelled tail mud-pulling rod structure according to claim 1, characterized in that: Both the short rod (1) and the long rod (2) have a groove (15) at one end. The outer walls of the plug (5) and the socket (4) are respectively engaged with the inner walls of the two grooves (15). The plug (5) has a strip groove (8) inside.
4. The self-moving tail mud-pulling rod structure according to claim 3, characterized in that: The top and bottom ends of the connecting bolt (6) are symmetrically fixed with stop blocks (14), the width of the stop block (14) is greater than the width of the strip groove (8), and the bottom end of the connecting bolt (6) extends through the interior of the strip groove (8).
5. The self-propelled tail mud-pulling rod structure according to claim 1, characterized in that: The short rod (1) and the long rod (2) are each provided with a threaded surface (9) at one end. The short rod (1) is provided with a threaded sleeve (10) on the outside. The inner wall of the threaded sleeve (10) is threadedly connected to the adjacent ends of the short rod (1) and the long rod (2) through the threaded surface (9).
6. The self-propelled tail mud-pulling rod structure according to claim 1, characterized in that: The fixed base includes a fixed plate (11), screw holes (12) and reinforcing plates (13). The end of the short rod (1) away from the socket (4) is fixedly connected to the fixed plate (11). Multiple reinforcing plates (13) are provided between one end of the short rod (1) and the fixed plate (11). Multiple screw holes (12) are provided at equal intervals on the outer side of the fixed plate (11). Screws are provided inside the screw holes (12). The fixed plate (11) is detachably connected to the tail of the self-moving machine by screws.