A rotary insertion tool mounting structure

Abstract

This utility model relates to the technical field of tunnel boring machine equipment, specifically to a rotary insertion type cutter mounting structure, including a cutter, a first cutter cylinder, and a second cutter cylinder. The first and second cutter cylinders are detachably connected. A connecting device is also included, comprising a cutter shaft and a boss. The second cutter cylinder has a cavity and a first slot communicating with the cavity. A second slot is also provided on the second cutter cylinder, penetrating through it and extending into the cavity. The cutter shaft slides in cooperation with the first and second cutter cylinders. The boss is fixedly mounted on the cutter shaft, located within the first slot. The cutter is detachably connected to the cutter shaft. Through the arrangement of the first slot, the second slot, and the cavity, the boss on the cutter shaft can quickly enter the first slot along the second slot and be fixed, and simultaneously quickly exit along the second slot, thereby enabling the cutter shaft to quickly assemble and disassemble the cutter.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine equipment technology, and in particular to a rotary insertion type cutter mounting structure. Background Technology

[0002] In tunnel construction, tunnel boring machines (TBMs) use cutters on their cutterheads to cut and break up rock and soil to excavate tunnels. As the core components that come into direct contact with the rock and soil, the cutters are prone to wear, cracking, and other damage during long-term high-load operation. Therefore, it is necessary to regularly inspect and replace the cutters to ensure the normal tunneling efficiency and construction safety of the TBM. The ease and stability of the installation and replacement of the cutters directly affect the overall construction efficiency of the TBM.

[0003] Currently, the cutters of tunnel boring machine cutterheads are mostly installed using traditional methods such as bolt connection and clamp fixation. This type of installation method has obvious drawbacks: when replacing cutters, multiple fasteners need to be disassembled, the operation steps are cumbersome, which not only consumes a lot of time, but also requires multiple workers to work together, seriously affecting the construction progress of the tunnel boring machine. Utility Model Content

[0004] The purpose of this utility model is to provide a rotary insertion type cutter mounting structure, which solves the problem that conventional shield machine cutterhead cutters are fastened with bolts and other fasteners, but disassembly and assembly are troublesome and the efficiency of cutter replacement is low.

[0005] To achieve the above objectives, this utility model provides a rotary insertion type tool mounting structure, including a tool, a first tool barrel, and a second tool barrel. The first tool barrel and the second tool barrel are detachably connected. It also includes a connecting device, which includes a tool shaft and a boss. The second tool barrel has a cavity and a first slot communicating with the cavity. The second tool barrel also has a second slot penetrating through the second tool barrel and extending into the cavity. The tool shaft is slidably engaged with the first and second tool barrels. The boss is fixedly mounted on the tool shaft and located within the first slot. The tool is detachably connected to the tool shaft.

[0006] The connecting device further includes an elastic element, which is sleeved on the cutter shaft and fixedly connected to the boss. The end of the elastic element away from the boss abuts against the first cutter cylinder.

[0007] The cutter shaft is also provided with a dedicated tool changing fixture interface, which is located at the end of the cutter shaft away from the tool.

[0008] This utility model discloses a rotary insertion-type tool mounting structure. In use, the tool is connected to the tool shaft, and then the end of the tool shaft carrying the tool is inserted into the first and second tool cylinders. Next, the boss on the tool shaft is aligned with the position of the second retaining groove. Then, the end of the tool shaft near the boss is pressed, causing the elastic element to be compressed, allowing the boss to slide along the second retaining groove into the cavity on the second tool cylinder. The tool shaft is then rotated 90°, aligning the boss with the position of the first retaining groove, and the tool shaft is released. This allows the elastic element to press the boss into the first retaining groove, thus fixing the tool shaft and the tool, completing the installation. When the tool needs to be replaced... The cutter shaft is pressed into the second cutter cylinder again, causing the boss to disengage from the first slot and releasing the first slot from locking the boss. Then, the cutter shaft is rotated 90° in the opposite direction, aligning the boss with the position of the second slot. At this time, under the pressure of the elastic element, the boss slides out along the second slot, and the cutter shaft and the cutter are removed, allowing the cutter to be replaced. Thus, through the arrangement of the first slot, the second slot, and the cavity, the boss on the cutter shaft can quickly enter the first slot along the second slot and be fixed, and at the same time, it can quickly exit along the second slot, thereby enabling the cutter shaft to quickly assemble and disassemble the cutter. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0010] Figure 1 This is a schematic diagram of the overall structure of a rotary insertion-type tool mounting structure according to this utility model.

[0011] Figure 2 This is a schematic diagram showing the connection between the second cutter barrel and the cutter shaft of this utility model.

[0012] In the diagram: 101-cutting tool, 102-first cutting tool barrel, 103-second cutting tool barrel, 104-cutting shaft, 105-bore, 106-cavity, 107-first slot, 108-second slot, 109-elastic element, 110-dedicated tool changing fixture interface. Detailed Implementation

[0013] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0014] The embodiment of this application is as follows: Please see Figure 1-2 , Figure 1 This is a schematic diagram of the overall structure of a rotary insertion-type tool mounting structure according to this utility model. Figure 2 This is a schematic diagram showing the connection between the second cutter barrel and the cutter shaft of this utility model.

[0015] This utility model provides a rotary insertion type cutter mounting structure, including a cutter 101, a first cutter cylinder 102 and a second cutter cylinder 103, and a connecting device. The connecting device includes a cutter shaft 104 and a boss 105. The connecting device also includes an elastic element 109. The cutter shaft 104 is also provided with a dedicated cutter replacement tooling interface 110. The above solution solves the problem that conventional shield machine cutterhead cutters are fastened with bolts and other fasteners, but disassembly and assembly are troublesome and the cutter replacement efficiency is low.

[0016] In this embodiment, the first slot 107, the second slot 108, and the cavity 106 are configured such that the boss 105 on the cutter shaft 104 can quickly enter the first slot 107 along the second slot 108 and be fixed, and at the same time can quickly exit along the second slot 108, thereby enabling the cutter shaft 104 to drive the cutter 101 to be quickly assembled and disassembled.

[0017] The second cutter barrel 103 is further provided with a first retaining groove 107, which communicates with the cavity 106. The second cutter barrel 103 is also provided with a second retaining groove 108, which penetrates the second cutter barrel 103 and extends into the cavity 106. The cutter shaft 104 is slidably engaged with the first cutter barrel 102 and the second cutter barrel 103. The boss 105 is fixedly mounted on the cutter shaft 104 and is located within the first retaining groove 107. The cutter 101 is detachably connected to the cutter shaft 104. The first cutter barrel 102 and the second cutter barrel 103 are detachably connected by bolts. The inner diameter of the first cutter barrel 102 is smaller than the inner diameter of the second cutter barrel 103. The boss 105 is disposed on the upper and lower sides of the end of the cutter shaft 104. The structure of the boss 105 is adapted to the structure of the first slot 107 and the second slot 108. The first slot 107 is arranged vertically, while the second slot 108 is arranged horizontally. The first slot 107 and the second slot 108 form a 90° angle. By connecting the cutter 101 to the cutter shaft 104, the boss 105 enters the cavity 106 along the second slot 108. By rotating the cutter shaft 104, the boss 105 is engaged in the first slot 107. The disassembly of the cutter shaft 104 can be performed by reversing the operation, thereby enabling the cutter shaft 104 to drive the cutter 101 to be quickly assembled and disassembled.

[0018] Secondly, the elastic element 109 is sleeved on the cutter shaft 104 and fixedly connected to the boss 105. The end of the elastic element 109 away from the boss 105 abuts against the first cutter cylinder 102. The elastic element 109 is a spring, and the end of the elastic element 109 is welded to the boss 105. Through the setting of the elastic element 109, the elastic element 109 can squeeze the boss 105 to ensure that the boss 105 is stable in the first slot 107.

[0019] Furthermore, the dedicated tool changing fixture interface 110 is located at the end of the tool shaft 104 away from the tool 101. The dedicated tool changing fixture interface 110 has a hexagonal structure. Through the setting of the dedicated tool changing fixture interface 110, an external tool changing fixture can be inserted into the tool shaft 104, which facilitates pressing and rotating the tool shaft 104.

[0020] In this embodiment, during use, the cutting tool 101 is connected to the cutting shaft 104. Then, the end of the cutting shaft 104 with the cutting tool 101 is inserted into the first cutting cylinder 102 and the second cutting cylinder 103. Next, the boss 105 on the cutting shaft 104 is aligned with the position of the second retaining groove 108. Then, the end of the cutting shaft 104 near the boss 105 is pressed, causing the elastic element 109 to be compressed, allowing the boss 105 to slide along the second retaining groove 108 into the cavity 106 on the second cutting cylinder 103. Then, the cutting shaft 104 is rotated 90°, aligning the boss 105 with the position of the first retaining groove 107, and the cutting shaft 104 is released, causing the elastic element 109 to press the boss 105 into the first retaining groove 107, thus fixing the cutting shaft 104 and the cutting tool 101, completing the installation. When the cutting tool 101 needs to be replaced, the end of the cutting shaft 104 with the boss 101 is repositioned. The cutting shaft 104 presses into the interior of the second cutting cylinder 103, causing the boss 105 to disengage from the first retaining groove 107, releasing the first retaining groove 107 from locking the boss 105. Then, the cutting shaft 104 rotates 90° in the opposite direction, aligning the boss 105 with the position of the second retaining groove 108. At this time, under the pressure of the elastic member 109, the boss 105 slides out along the second retaining groove 108, removing the cutting shaft 104 and the cutting tool 101, allowing the cutting tool 101 to be replaced. Thus, through the arrangement of the first retaining groove 107, the second retaining groove 108, and the cavity 106, the boss 105 on the cutting shaft 104 can quickly enter the first retaining groove 107 along the second retaining groove 108 and be fixed, while simultaneously being able to quickly exit along the second retaining groove 108. This allows the cutting shaft 104 to quickly assemble and disassemble the cutting tool 101.

[0021] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A rotary insert tool mounting structure comprising a tool, a first tool cylinder and a second tool cylinder, the first tool cylinder and the second tool cylinder being detachably connected, characterized in that, a connecting device is further included; the connecting device comprises a tool shaft and a boss, the second tool cylinder is provided with a recess cavity, the second tool cylinder is further provided with a first clamping groove, the first clamping groove is communicated with the recess cavity, the second tool cylinder is further provided with a second clamping groove, the second clamping groove penetrates through the second tool cylinder and extends into the recess cavity, the tool shaft is in sliding fit with the first tool cylinder and the second tool cylinder, the boss is fixedly installed on the tool shaft, the boss is located in the first clamping groove, and the tool is detachably connected with the tool shaft.

2. The rotary insert tool mounting structure according to claim 1, characterized in that, the connecting device further comprises an elastic member, the elastic member is sleeved on the tool shaft and fixedly connected with the boss, and an end of the elastic member away from the boss is in abutment with the first tool cylinder.

3. The rotary insert tool mounting structure according to claim 1, characterized in that, a special tool changing tool interface is further provided on the tool shaft, and the special tool changing tool interface is arranged at an end of the tool shaft away from the tool.

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