Simple conveying device for drill bit of raise boring machine in narrow space
By setting multiple sets of support frames and rollers that clamp the drill bit cutter on the handcart, the inconvenience of transporting drill bits in narrow spaces is solved, and stable transport of drill bits is achieved.
Patent Information
- Application Number
- CN202423252618.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The cutter head of the riser drill bit is difficult to transport in confined spaces, cannot be placed vertically, and is prone to rolling, resulting in transportation inconvenience.
Design a transport device that includes a handcart and multiple sets of support frames. The support frames and tie rods clamp the rollers of the drill bit cutter, limiting their radial and axial displacement and ensuring stability during transport.
It enables stable transport of drill bit cutters in narrow spaces, preventing them from falling or rolling, thus improving transport efficiency.
Smart Images
Figure CN223523776U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of the raise -boring machine, concretely relates to a simple transport device of raise -boring machine drill bit in narrow space. BACKGROUND
[0002] The raise -boring machine construction is mainly used in underground shaft construction.For example, the raise -boring machine is used to carry out hole expansion construction.The hole expansion principle is that the guide hole drill bit is removed from the lower tunnel, the hole expansion cutter head is connected, the rolling cutter on the cutter head cuts the rock, and the raise -boring machine starts to pull the hole expansion from bottom to top.The rock debris broken during the hole expansion drilling falls to the lower tunnel by gravity and is transported out by the loader or other loading equipment.In the actual construction process, the rock breaking rolling cutter on the cutter head needs to be replaced when the wear is too large.Due to the narrow space in the tunnel, only a small handcart can be used to transport the drill bit rolling cutter, but the drill bit rolling cutter of the raise -boring machine is generally cylindrical in structure, and the end is provided with an extended roller, which cannot be placed vertically, and is easy to roll horizontally, so the transportation is difficult. SUMMARY
[0003] In view of the problems in the prior art, the simple transport device of raise -boring machine drill bit in narrow space is provided, which can effectively support and limit the drill bit rolling cutter.
[0004] The utility model provides a simple transport device of raise -boring machine drill bit in narrow space, the raise -boring machine drill bit includes the rolling cutter and the roller arranged at both ends of the rolling cutter, the transport device includes the handcart and multiple sets of support frames, the handcart includes the bottom plate, the wheel arranged at the bottom of the bottom plate, the handrail articulated with one end of the bottom plate, multiple sets of support frames are distributed on the bottom plate, each set of support frame includes at least two support seats arranged on the bottom plate in the opposite direction of the roller, each support seat includes the cutter seat, the pressing block and the puller, the bottom of the cutter seat is located on the bottom plate, the pressing block is arranged on the cutter seat, the puller is connected with the cutter seat and the pressing block, the opposite ends of the cutter seat and the pressing block are respectively provided with V-shaped notches for clamping the roller, and the rolling cutter is located between two support seats of each set of support frame.
[0005] Further, the V-shaped notches of the pressing block are provided with ear plates on both sides, the V-shaped notches of the cutter seat are provided with platforms below the ear plates correspondingly, the ear plates are provided with vertical through holes, the puller includes a threaded screw rod and a pressing nut, the screw rod passes through the through hole, the bottom of the screw rod is anchored into the platform, and the pressing nut is located above the ear plate.
[0006] Further, a guide rail is arranged on the bottom plate, and a sliding seat is arranged on the guide rail and slidably connected to the guide rail.
[0007] Further, a locking member is arranged on the sliding seat and connected to the guide rail.
[0008] Further, the locking member comprises a locking bolt, and a plurality of threaded holes are arranged on the guide rail and spaced apart along the length direction of the guide rail, and the locking bolt is connected to the threaded holes through the sliding seat.
[0009] Further, a horizontal through slot is arranged on the bottom of the sliding seat, and the guide rail is embedded in the through slot.
[0010] Further, a limiting member is arranged at the end of the guide rail.
[0011] Further, a plurality of guide rails are arranged, and the plurality of guide rails are arranged in the axial direction of the roller and spaced apart, and a plurality of support seats are slidably arranged on each guide rail.
[0012] The utility model discloses a handcart for the transportation of drill bits in narrow space. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the simple drill bit transportation device for the raise-boring machine in narrow space.
[0014] Figure 2 It is a side view structural schematic diagram. Figure 1
[0015] Figure 3 It is a partial three-dimensional structural schematic diagram of one guide rail and sliding seat. Figure 2
[0016] In the figure, 1 is a bottom plate, 2 is a wheel, 3 is a handcart handle, 4 is a guide rail, 5 is a sliding seat, 6 is a cutter holder, 7 is a pressing block, 8 is a screw rod, 9 is a pressing nut, 10 is a locking member, 11 is a locking bolt, 12 is a threaded hole, 13 is a limiting member, 14 is a hob, and 15 is a roller. DETAILED DESCRIPTION
[0017] The utility model will be described in further detail below in combination with the drawings and specific embodiments.
[0018] AsFigures 1-3 The illustrated simple transport device for a raise boring machine bit in a narrow space includes a cutter head 14 and rollers 15 disposed at both ends of the cutter head 14.
[0019] The transport equipment includes a handcart and multiple sets of support frames.
[0020] The handcart includes a base plate 1, wheels 2 mounted on the bottom of the base plate 1, and a push rod 3 hinged to one end of the base plate 1. The bracket connecting the wheels 2 to the base plate 1 can be equipped with shock-absorbing springs to improve the handcart's shock absorption capability.
[0021] In this embodiment, six sets of support frames are provided on the base plate 1, and the six sets of support frames are arranged in a 3-row, 2-column configuration. That is, the support frames are arranged in 3 rows along the length of the base plate 1 and in 2 columns along the width of the base plate 1.
[0022] Each set of support frames includes two support seats that are spaced apart from each other along the axial direction of the roller 15 on the base plate 1.
[0023] Four guide rails 4 are mounted on the base plate 1, with their lengths aligned with the length of the base plate 1. The four guide rails 4 are spaced apart along the width of the base plate 1. Each guide rail 4 has three support seats slidably connected to it via sliding seats 5. The support seats on two opposite guide rails 4 form a support frame. Because the sliding seats 5 can slide on the guide rails 4, the opposite support seats are not necessarily on adjacent guide rails 4; for example, ... Figure 1 As shown, from left to right, the support seats on the first guide rail 4 and the third guide rail 4 can be arranged opposite each other to form a support frame, or the support seats on the second guide rail 4 and the fourth guide rail 4 can be arranged opposite each other to form a support frame. In this embodiment, the support seats on the third guide rail 4 and the fourth guide rail 4 are arranged opposite each other to form a support frame. By using the cooperation of the opposite support seats on different guide rails 4 to form support frames with different distances, drill bits of different lengths can be supported.
[0024] Each support base includes a cutter holder 6, a pressure block 7, and a tie rod. The bottom of the cutter holder 6 rests on the base plate 1, the pressure block 7 is placed on the cutter holder 6, and the tie rod connects the cutter holder 6 and the pressure block 7. V-shaped notches are provided at the opposite ends of the cutter holder 6 and the pressure block 7 for clamping the roller 15. The hob 14 is located between the two support bases of each support frame. Ear plates are provided on both sides of the V-shaped notch of the pressure block 7. Platforms are provided on both sides of the V-shaped notch of the cutter holder 6 below the ear plates. Vertical through holes are provided on the ear plates. The tie rod includes a threaded screw 8 and a clamping nut 9. The screw 8 passes through the through hole, and the bottom of the screw 8 is anchored to the platform. The clamping nut 9 is located on the ear plates.
[0025] When the roller 15 at both ends of the roller cutter 14 of the drill bit is respectively located on the V-shaped cutout of the cutter seat 6 of the two support seats, the removed pressing block 7 is installed on the corresponding cutter seat 6, the threaded rod 8 penetrates through the lug plate of the pressing block 7 and then penetrates out of the lug plate, the pressing nut 9 is screwed on the threaded rod 8, and the pressing nut 9 is above the lug plate, until the end surface of the V-shaped cutout of the pressing block 7 abuts against the roller 15. Thus, the radial displacement of the drill bit is limited.
[0026] Since the diameter of the roller cutter 14 of the drill bit is greater than the diameter of the roller 15, after the two support seats support the roller 15, the roller cutter 14 is located between the two support seats, and the axial displacement of the roller cutter 14 is also limited. Thus, during the transportation of the drill bit, the drill bit is not worried about falling or rolling.
[0027] As shown in Figure 3 , the sliding seat 5 is provided with a locking piece 10, and the locking piece 10 is connected with the guide rail 4. The locking piece 10 comprises a locking bolt 11, and a plurality of threaded holes 12 are arranged on the guide rail 4 along the length direction of the guide rail 4. The locking bolt 11 penetrates through the sliding seat 5 and is connected with the threaded hole 12. By unscrewing the locking bolt 11, the locking bolt 11 is away from the threaded hole 12, so that the sliding seat 5 is facilitated to slide on the guide rail 4, so as to adjust the position of the support seat. When the support seat reaches the target position, the locking bolt 11 is tightened, so that the bottom of the locking bolt 11 is matched with the threaded hole 12 of the guide rail 4, and the sliding seat 5 is fixed on the guide rail 4.
[0028] As shown in Figure 3 , the bottom of the sliding seat 5 is provided with a horizontal through slot, and the guide rail 4 is embedded in the through slot. This structure ensures that the sliding seat 5 does not deviate laterally when sliding on the guide rail 4.
[0029] As shown in Figure 2 , the end of the guide rail 4 is provided with a limiting piece 13. The limiting piece 13 limits the displacement amount of the sliding seat 5 on the guide rail 4, so as to avoid the sliding seat 5 from falling off the guide rail 4.
[0030] The preferred embodiments of the present application are described above, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application shall also be considered as the protection scope of the present application.
Claims
1. A simple transport device for a down-the-hole hammer drill bit in a narrow space, characterized in that, The reverse drilling machine drill bit comprises a roller cutter and rollers arranged at both ends of the roller cutter; the transport device comprises a handcart and multiple groups of support frames; the handcart comprises a bottom plate, wheels arranged at the bottom of the bottom plate, and a handcart handle hingedly connected to one end of the bottom plate; multiple groups of the support frames are distributed on the bottom plate; each group of the support frames comprises at least two support seats arranged on the bottom plate in opposite directions along the axial direction of the roller; each support seat comprises a cutter seat, a pressing block, and a tensioning piece; the bottom of the cutter seat is seated on the bottom plate, the pressing block is arranged on the cutter seat, and the tensioning piece is connected to the cutter seat and the pressing block in tension; opposite ends of the cutter seat and the pressing block are respectively provided with V-shaped notches for clamping the roller; and the roller cutter is located between the two support seats of each group of the support frames.
2. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 1, characterized in that, Both sides of the V-shaped notch of the pressing block are provided with an ear plate; both sides of the V-shaped notch of the cutter seat are provided with a platform below the ear plate; the ear plate is provided with a vertical through hole; the tensioning piece comprises a threaded screw rod and a pressing nut; the screw rod passes through the through hole, and the bottom of the screw rod is anchored into the platform; and the pressing nut is located above the ear plate.
3. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 1, characterized in that, A guide rail is further arranged on the bottom plate; the guide rail is provided with a sliding seat slidingly fitted along the length direction of the guide rail; and the sliding seat is connected to the cutter seat.
4. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 3, characterized in that, A locking piece is arranged on the sliding seat, and the locking piece is connected to the guide rail.
5. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 4, characterized in that, The locking piece comprises a locking bolt, multiple threaded holes are arranged on the guide rail along the length direction of the guide rail, and the locking bolt passes through the sliding seat and is connected to the threaded holes.
6. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 3, characterized in that, The bottom of the sliding seat is provided with a horizontal through slot, and the guide rail is embedded into the through slot.
7. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 3, characterized in that, The end of the guide rail is provided with a limiting piece.
8. The simple transporting device of the under-raise boring machine drill bit in narrow space according to claim 3, characterized in that, There are multiple guide rails, and multiple groups of the guide rails are arranged in opposite directions along the axial direction of the roller; and multiple support seats are slidingly fitted on each guide rail.