Hob storing, transferring and transporting mechanism of shield tunneling machine

Abstract

The invention relates to the technical field of shield tunneling machine hobs, and discloses a shield tunneling machine hob storing, rotating and transporting mechanism which comprises two symmetrically-arranged clamping assemblies and a distance adjusting assembly used for connecting the two clamping assemblies. The clamping assembly comprises an annular fixing plate, the outer diameter of the fixing plate is larger than the maximum diameter of the hob, a plurality of first extending parts are arranged on the outer edge of the fixing plate in the circumferential direction, a supporting mechanism is arranged at each first extending part, and the supporting mechanisms can position the hob in the radial direction and the axial direction of the hob. The distance adjusting assembly is used for adjusting the distance between the two clamping assemblies so as to further fix the position of the hob. According to the clamping assembly, the hob can be rapidly positioned in the axial direction and the radial direction, after the two clamping assemblies are installed, the hob can be effectively fixed, the good protection effect is achieved, and therefore the hob can be conveniently stored, transferred, transported and used, and the applicability is wide.

Description

Technical Field

[0001] The present invention relates to the technical field of shield machine cutters, and particularly to a storage, rotation and transportation mechanism for shield machine cutters. Background Art

[0002] In modern tunnel construction, shield machines play a crucial role. As the key components that directly contact the rock and soil mass and perform the rock breaking function, the convenience of installation, maintenance and daily management of the cutters of shield machines has a significant impact on construction efficiency.

[0003] Currently, from the aspect of storing cutters, during the storage process of shield machine cutters, there is a problem that it is extremely inconvenient to fix them. The traditional positioning method is not only complex in operation, but also requires a large amount of manpower and time.

[0004] In addition, at the construction site of shield machines, cutters often need to be transferred within a small range for maintenance, replacement and other operations. However, the existing cutter structure design makes it extremely inconvenient to transfer them within a small range. This not only increases the labor intensity of construction workers, but also easily causes unnecessary damage to the cutters during the transfer process.

[0005] In summary, there is an urgent practical need to develop a storage, rotation and transportation mechanism for shield machine cutters, which can solve the problems of inconvenient axial and radial positioning of cutters, facilitate the small-range transfer and later transportation of cutters, and at the same time have a good protection effect for the storage, transfer and transportation of shield machines. Summary of the Invention

[0006] To solve the technical problems proposed in the background art, the present invention provides a storage, rotation and transportation mechanism for shield machine cutters.

[0007] The present invention is realized by the following technical solutions: a storage, rotation and transportation mechanism for shield machine cutters, comprising two groups of symmetrically arranged clamping components and a distance adjusting component for connecting the two groups of clamping components.

[0008] The clamping component includes an annular fixing plate, the outer diameter of the fixing plate is larger than the maximum diameter of the cutter, a plurality of first extending parts are arranged along the circumferential direction at the outer edge of the fixing plate, and a set of supporting mechanisms are arranged at each first extending part, and the supporting mechanisms can position the cutter in the radial and axial directions.

[0009] The distance adjusting component is used to adjust the distance between the two groups of clamping components to further fix the position of the cutter.

[0010] The present invention can quickly position the cutter through the above-mentioned clamping components and distance adjusting component, which is convenient for the storage, transfer and transportation of the cutter.

[0011] As a further improvement of the above scheme, the support mechanism includes a slide groove opened at an extension part, an inner sliding block slidably connected to the slide groove, a mounting hole is provided in the inner sliding block, a sealing mechanism is detachably connected to one side of the mounting hole, a buffer spring is also provided in the mounting hole, a support rod is connected to the other side of the mounting hole, an axial support plate is fixed to the end of the support rod, an outer sliding block is fixed to the middle of the support rod, and a radial positioning unit is installed on the outer sliding block.

[0012] The axial support plate is used to position the hob in the axial direction, and the radial positioning unit is used to further position the hob in the radial direction. The buffer spring is provided to make the device more operable.

[0013] As a further improvement of the above solution, the radial positioning unit includes a radial push rod movably penetrating the outer sliding block, a toggle rod fixed on the radial push rod, and a power unit driving the radial push rod to slide.

[0014] The radial positioning unit proposed in the above solution is combined with the axial support plate to form an integrated structure, which is easy to operate and compact in structure.

[0015] As a further improvement of the above scheme, the power unit includes a movable plate which is coaxially connected to the fixed plate for relative rotation. The movable plate is an annular plate. A plurality of arc grooves corresponding to the radial positioning units are opened on the movable plate. The toggle rod in the radial positioning unit can move through the arc groove corresponding to the radial positioning unit. A plurality of extension parts 2 are distributed circumferentially on the fixed plate. A micro motor is installed on the extension part 2. The output shaft of the micro motor is connected to a driving gear. A plurality of rolling edges are distributed circumferentially on the outer ring of the movable plate. A tooth plate meshing with the driving gear is provided on the inner side of the rolling edge.

[0016] Through the above scheme, the rotating movable plate is used to drive each radial push rod to slide, thereby clamping or loosening.

[0017] As a further improvement of the above scheme, a connecting groove coaxial with the fixed plate is provided on the second extension part, a connecting rod is fixed on the movable plate, and a sliding seat that slides with the connecting groove is provided at the end of the connecting rod. The sliding seat can slide along its length direction at the same depth in the connecting groove.

[0018] Through the connection relationship between the connection groove, the connection rod and the sliding seat, the connection structure between the movable plate and the fixed plate is stable, and the relative rotation between the two can be stably achieved.

[0019] As a further improvement of the above solution, the sealing mechanism includes a sealing column screwed together with the mounting hole and an end plate fixed to the end of the sealing column.

[0020] Since the plugging mechanism is convenient for installation and disassembly, it is convenient to replace the buffer spring in the installation hole.

[0021] As a further improvement of the above solution, a buffer head is fixed at the end of the radial ejector rod close to the hob, and the buffer head is a polyurethane block or a silicone block or a rubber block.

[0022] Utilizing the buffering characteristics of the above materials can avoid rigid contact during fixation, play a certain buffering and protective role, and the friction coefficient between the above materials and the hob is relatively high, which can provide a large static friction force.

[0023] As a further improvement of the above solution, the axial support plate is made of stainless steel, the axial support plate is circular plate-shaped, and a protective cushion layer with one-side rubber is provided on the support surface of the axial support plate.

[0024] Further improve the safety and comfort during use.

[0025] As a further improvement of the above solution, the distance adjustment component includes a movable collar, a fixed collar and a telescopic member. Among them, one end of the telescopic member is fixed on the fixed plate of one set of clamping components, the output end of the telescopic member movably penetrates the fixed plate of the other set of clamping components, the fixed collar is fixed on the output end of the telescopic member, and the movable collar is installed on the output end of the telescopic member in a helical connection direction.

[0026] As a further improvement of the above solution, the telescopic member can be a hydraulic cylinder or an electric push rod or a cylinder.

[0027] In this solution, through the distance adjustment component, after the clamping components on both sides of the hob are installed, a tightening operation can be performed, thereby stabilizing the position of the hob in the two sets of clamping components and facilitating the subsequent transfer and transportation of the hob.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] The storage, transfer and transportation mechanism for the hob of the shield machine proposed by the present invention includes two sets of symmetrically arranged clamping components and a distance adjustment component for connecting the two sets of clamping components. Through the above clamping components and distance adjustment component, the present invention can quickly position the hob, and the operation is simple and convenient.

[0030] The clamping component proposed by the present invention can quickly position the hob axially and radially. After the two sets of clamping components are installed, the hob can be effectively fixed and play a good protective role, thus facilitating the storage, transfer and transportation of the hob, and having a wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional view of the overall structure of the storage, transfer and transportation mechanism for the hob proposed by the present invention;

[0032] Figure 2 The overall structural front view of the hob storage, transfer and transportation mechanism proposed by the present invention;

[0033] Figure 3 A top view of the overall structure of the hob storage, transfer and transportation mechanism proposed by the present invention;

[0034] Figure 4 For the present invention Figure 1 A magnified image of point A;

[0035] Figure 5 This is a schematic diagram of the installation structure of the single-side clamping assembly of the hob storage, transfer and transportation mechanism proposed by the present invention;

[0036] Figure 6 A partial structural perspective view of a single clamping assembly proposed by the present invention.

[0037] Description of main symbols:

[0038] In the figure: hob 1, fixed plate 2, movable plate 3, piping 4, column 5, extension part 1 6, drive gear 7, support mechanism 8, tooth plate 9, arc groove 10, slide groove 11, radial push rod 12, extension part 2 13, end plate 15, sealing column 16, inner slider 17, outer slider 18, axial support plate 19, movable collar 20, fixed collar 21, telescopic member 22, toggle rod 23, buffer head 24, connecting groove 25. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0040] Embodiment 1:

[0041] Reference Figures 1 - 6 The present invention proposes a shield machine cutter storage, transfer and transportation mechanism, which includes two groups of symmetrically arranged clamping assemblies and a distance adjustment assembly for connecting the two groups of the clamping assemblies.

[0042] The clamping assembly includes an annular fixing plate 2, the outer diameter of which is larger than the maximum diameter of the hob, so as to effectively protect the hob. The outer edge of the fixing plate 2 is circumferentially provided with a plurality of extension portions 6, and each extension portion 6 is provided with a group of supporting mechanisms 8, which can position the hob in the radial and axial directions.

[0043] The distance adjustment assembly is used to adjust the distance between the two sets of clamping assemblies to further fix the position of the hob.

[0044] Through the above clamping assembly and distance adjustment assembly, the hob of the present invention can be quickly positioned, which is convenient for the storage, transfer and transportation of the hob.

[0045] In this solution, the support mechanism includes a chute 11 opened at the first extension part 6 and an inner slider 17 slidably connected to the chute 11. An installation hole (not marked) is provided in the inner slider 17. One side of the installation hole is detachably connected with a plugging mechanism. A buffer spring (a columnar spring made of cast iron can be used) is also arranged in the installation hole. The other side of the installation hole is connected with a support rod (not marked). An axial support plate 19 is fixed at the end of the support rod, and an outer slider 18 is fixed in the middle of the support rod. A radial positioning unit is installed on the outer slider 18. The position of the inner slider 17 in the chute 11 can be positioned by bolts.

[0046] The present invention positions the hob axially through the axial support plate 19, and further positions the hob radially in cooperation with the working of the radial positioning unit. And by setting the buffer spring, the device has better operability in use.

[0047] More specifically, the radial positioning unit includes a radial ejector rod 12 that movably penetrates the outer slider 18, a toggle rod 23 fixed to the radial ejector rod 12, and a power unit that drives the radial ejector rod 12 to slide.

[0048] The radial positioning unit proposed in this solution is combined with the axial support plate 19 into an integrated structure, which is convenient to operate and has a compact structure.

[0049] As an optional implementation manner of the present invention, the power unit includes a movable plate 3 rotatably and oppositely connected to the fixed plate 2 coaxially. The movable plate 3 is an annular plate. A plurality of arc-shaped grooves 10 corresponding to the radial positioning unit are opened on the movable plate 3. The toggle rod 23 in the radial positioning unit can movably pass through the arc-shaped groove 10 corresponding to it. A plurality of second extension parts 13 are circumferentially distributed on the fixed plate 2. A micro motor is installed on the second extension part 13. The output shaft of the micro motor is connected with a driving gear 7. A plurality of rolling edges 4 are circumferentially distributed at the outer circle of the movable plate 3. A toothed plate 9 meshing with the driving gear 7 is arranged inside the rolling edge 4.

[0050] When the rolling edges 4 provided by the present invention are used to transfer the hob in a small range, the two inspection assemblies with the hob fixed can also be vertically placed on the ground by using the characteristics of the rolling edges, so that the outer wall of the rolling edge contacts the ground to facilitate the movement of the whole device.

[0051] In this embodiment, the rotating movable plate 3 is used to drive each radial ejector rod 12 to slide, so as to clamp or loosen the hob 1.

[0052] It is worth mentioning that a connecting groove 25 coaxial with the fixed plate 2 is provided on the extension portion 2, a connecting rod (not marked) is fixed on the movable plate 3, and a sliding seat that slides with the connecting groove is provided at the end of the connecting rod, and the sliding seat can slide along its length direction at the same depth in the connecting groove.

[0053] In this solution, the connection relationship between the connecting groove, the connecting rod and the sliding seat is used to stabilize the connection structure between the movable plate and the fixed plate, and to stably realize the relative rotation between the two.

[0054] Specifically, a guide groove is provided on the inner wall of the connecting groove, and a sliding block cooperating with the guide groove is provided on the outer wall of the sliding seat, so that the sliding seat can slide along its length direction at the same depth in the connecting groove. At the same time, due to the clamping action of the guide groove and the guide block in another vertical direction, the fixed plate and the movable plate do not move relative to each other in the other directions, and the overall structure is more stable.

[0055] In this solution, the blocking mechanism includes a sealing column 16 screwed together with the mounting hole and an end plate 15 fixed to the end of the sealing column 16 .

[0056] The blocking mechanism designed in this solution is convenient for installation and disassembly, so as to facilitate replacement of the buffer spring in the installation hole.

[0057] A buffer head 24 is fixed to the end of the radial push rod 12 near the hob. The buffer head 24 is a polyurethane block, a silicone block or a rubber block.

[0058] In this solution, the buffering characteristics of the above-mentioned material can be used to avoid rigid contact during fixation, which plays a certain buffering and protective role. In addition, the friction coefficient between the above-mentioned material and the hob is relatively high, which can provide a large static friction force.

[0059] The axial support plate 19 is made of stainless steel and is in the shape of a circular plate. A rubber protective cushion layer is provided on one side of the support surface of the axial support plate 19, which can further improve the safety and comfort during use.

[0060] As an optional embodiment of the present invention, the distance adjustment assembly includes a movable collar 20, a fixed collar 21 and a telescopic member 22, wherein one end of the telescopic member 22 is fixed on a fixed plate 2 in one set of clamping assemblies, and the output end of the telescopic member 22 movably passes through the fixed plate 2 in another set of clamping assemblies (specifically, a perforation can be provided on the fixed plate 2), the fixed collar 21 is fixed on the output end of the telescopic member 22, and the movable collar 20 is installed on the output end of the telescopic member 22 in a spiral connection direction. The telescopic member 22 can be a hydraulic cylinder, an electric push rod or a cylinder.

[0061] Through the distance adjustment component, this solution can perform a tightening operation after the clamping components on both sides of the hob are installed, so as to stabilize the position of the hob in the two groups of clamping components, facilitating the subsequent transfer and transportation of the hob.

[0062] When the device is working, one group of clamping components can be placed horizontally, and then the hob is placed horizontally in this clamping component. In this way, the axial support plate can naturally support the cutting surface of the hob. By driving the movable plate in this clamping component, the radial ejector rod can be further driven to fix the hob. Then, the other group of clamping components is placed above the hob by using the hoisting mechanism, and the output end of the telescopic member is passed through the through hole on the fixing plate. Then, the movable collar 20 is installed, and this clamping component can perform radial positioning on the hob. Finally, when the telescopic member works, the hob can be effectively positioned.

[0063] The above-mentioned embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited by this. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. A storage, rotation and transportation mechanism for a cutter head of a shield machine, characterized in that, It comprises two groups of symmetrically arranged clamping assemblies and a distance adjustment assembly for connecting the two groups of the clamping assemblies; The clamping assembly comprises an annular fixing plate, the outer diameter of which is larger than the maximum diameter of the hob, the outer edge of which is provided with a plurality of extensions along the circumferential direction, each of which is provided with a group of supporting mechanisms, and the supporting mechanisms are capable of positioning the hob in the radial direction and the axial direction; The distance adjustment assembly is used to adjust the distance between the two sets of clamping assemblies to further fix the position of the hob.

2. The storage, rotation and transportation mechanism of a shield machine hob according to claim 1, characterized in that The supporting mechanism includes a slide groove opened at an extension part, an inner slider slidably connected to the slide groove, a mounting hole is provided in the inner slider, a sealing mechanism is detachably connected to one side of the mounting hole, a buffer spring is also provided in the mounting hole, a supporting rod is connected to the other side of the mounting hole, an axial supporting plate is fixed to the end of the supporting rod, an outer slider is fixed to the middle of the supporting rod, and a radial positioning unit is installed on the outer slider.

3. The storage, rotation and transportation mechanism of a shield machine hob according to claim 2, characterized in that The radial positioning unit comprises a radial push rod movably penetrating the outer sliding block, a toggle rod fixed on the radial push rod, and a power unit driving the radial push rod to slide.

4. The cutter storage, rotation and transportation mechanism of a shield machine according to claim 1, characterized in that The power unit includes a movable plate coaxially connected to a fixed plate for relative rotation. The movable plate is an annular plate. A plurality of arc grooves corresponding to the radial positioning units are provided on the movable plate. The toggle rod in the radial positioning unit can move through the arc grooves corresponding to the radial positioning unit. A plurality of extension parts 2 are circumferentially distributed on the fixed plate. A micro motor is installed on the extension part 2. The output shaft of the micro motor is connected to a driving gear. A plurality of rolling edges are circumferentially distributed on the outer ring of the movable plate. A tooth plate meshing with the driving gear is provided on the inner side of the rolling edge.

5. The storage, rotation and transportation mechanism of a shield machine hob according to claim 4, characterized in that, The second extension portion is provided with a connecting groove coaxial with the fixed plate, a connecting rod is fixed to the movable plate, and a sliding seat that slidably cooperates with the connecting groove is provided at the end of the connecting rod. The sliding seat can slide along its length direction at the same depth in the connecting groove.

6. The storage, rotation and transportation mechanism of a shield machine hob according to claim 1, characterized in that, The blocking mechanism comprises a sealing column which is screwed with the mounting hole and an end plate which is fixed at the end of the sealing column.

7. The storage, rotation and transportation mechanism of a shield machine hob according to claim 6, characterized in that, A buffer head is fixed to the end of one side of the radial push rod close to the hob, and the buffer head is a polyurethane block, a silicone block or a rubber block.

8. The storage, rotation and transportation mechanism of a shield machine hob according to claim 7, characterized in that The axial support plate is made of stainless steel and is in the shape of a circular plate. A rubber protective cushion layer is arranged on one side of the support surface of the axial support plate.

9. The cutter storage, rotation and transportation mechanism of a shield machine according to claim 1, characterized in that The distance adjustment assembly includes a movable collar, a fixed collar and a telescopic member, wherein one end of the telescopic member is fixed to a fixed plate in one group of clamping assemblies, the output end of the telescopic member movably passes through a fixed plate in another group of clamping assemblies, the fixed collar is fixed to the output end of the telescopic member, and the movable collar is installed at the output end of the telescopic member in a spiral connection direction.

10. A storage, rotation and transportation mechanism for a shield machine hob as described in claim 9, characterized in that, The telescopic member can be a hydraulic cylinder, an electric push rod or a pneumatic cylinder.

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