CN216811692U - Quick cutter replacing device based on double-cam structure - Google Patents

Abstract

The utility model discloses a quick cutter replacing device based on a double-cam structure, which relates to the technical field of shield construction and comprises a cutter holder, wherein a cutter bin which penetrates through the cutter holder from top to bottom is arranged in the middle of the cutter holder, rotatable inner rotating blocks are arranged in the middle of the front side and the back side of the cutter bin, the inner rotating blocks are circular in shape, clamping grooves are formed in the inner rotating blocks, sliding grooves are formed in the upper portions of the inner rotating blocks, the width sizes of the clamping grooves are equal to that of the sliding grooves, pressing blocks are arranged below the inner rotating blocks, the pressing blocks are fixedly connected with fixing bolts of the cutter holder, and fixing holes are formed in the positions, corresponding to the fixing bolts, of the pressing blocks and the cutter holder; a hob is arranged in the middle of the tool bin; the beneficial effects are that: the utility model has simple structure and convenient operation, reduces the disassembly and assembly processes and improves the operation efficiency; the utility model simplifies the whole structure of the shield cutter holder, is convenient for the disassembly and the assembly of the cutter and realizes the high-efficiency cutter changing operation.

Description

Quick cutter replacing device based on double-cam structure

Technical Field

The utility model relates to the technical field of shield construction, in particular to a quick cutter replacing device based on a double-cam structure.

Background

With the rapid development of the infrastructure industry in China, the shield is widely applied to the engineering fields of highways, water conservancy, subways, railways and the like, and it is estimated that in 2022 years, the total length of tunnels such as the subways, the highways, the railways and the like in China will exceed 10000 kilometers, wherein medium and extra long tunnels account for about 2/3, the cutter is used as a core component for shield excavation, the function of lifting weight is played in the excavation process of the tunnels, the cutter is consumed greatly and is replaced frequently in the shield construction process, the cutter detection and cutter replacement operation time accounts for more than 10% of the tunnel construction period, the existing cutter replacement operation mainly depends on manual operation, a plurality of parts which are distributed dispersedly exist on a cutter holder structure, the cutter replacement time and the labor cost are increased, and how to realize efficient and safe cutter replacement is always a puzzled problem in the industry.

Aiming at the characteristic that the conventional tool apron device has more fasteners, the utility model designs the quick tool changing device based on the double-cam structure, and the device can meet the requirement of quick tool changing under the complex working condition of a shield/TBM (tunnel boring machine).

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above problems, and an object of the present invention is to provide a quick tool changer based on a double cam structure.

The utility model realizes the purpose through the following technical scheme:

a quick cutter replacing device based on a double-cam structure comprises a cutter holder, wherein a cutter bin which penetrates through the cutter holder up and down is arranged in the middle of the cutter holder, a rotatable inner rotating block is arranged in the middle of the front side and the rear side of the cutter bin, the inner rotating block is circular, a clamping groove is formed in the inner rotating block, a sliding groove is formed in the upper portion of the inner rotating block, the width of the clamping groove is equal to that of the sliding groove, a pressing block is arranged below the inner rotating block, the pressing block is fixedly connected with a cutter holder fixing bolt, and fixing holes are formed in the positions, corresponding to the fixing bolt, of the pressing block and the cutter holder; the cutter comprises a cutter bin and is characterized in that a hob is arranged in the middle of the cutter bin, cutter shafts at the front end and the rear end of the hob are clamped in the clamping grooves, and the cross section of each cutter shaft is square matched with the clamping groove in shape.

Preferably, the following components: the left side and the right side of the sliding chute are respectively provided with an adjusting hole, an adjusting rod is arranged in the adjusting hole through a bearing and comprises a rotating rod and a cam disc, the upper end of the rotating rod is provided with an inner hexagonal clamping hole, and the lower end of the rotating rod is fixedly provided with the cam disc; the improved sliding door is characterized in that a sliding chamber is arranged below the adjusting hole, the inner rotating block corresponds to the sliding chamber, a limiting groove is formed in the position of the sliding chamber, a clamping block is movably arranged in the sliding chamber, wedge-shaped grooves meshed with the side walls of the sliding chamber are formed in the side faces of the front side and the rear side of the clamping block, the clamping block is close to one end of the inner rotating block, a clamping head with a trapezoidal cross section is fixedly arranged at one end of the inner rotating block, the clamping head is clamped in the limiting groove, a top groove is formed in the upper surface of the clamping block, a top block is fixedly arranged on the side wall of the inner rotating block in the top groove, the clamping block is far away from one end of the inner rotating block, a supporting spring is fixedly arranged at one end of the inner rotating block, and the supporting spring is far away from one end of the clamping block and is fixedly connected to the side wall of the sliding chamber.

Compared with the prior art, the utility model has the beneficial effects that:

1. the quick cutter replacing device based on the double-cam structure can reduce the disassembling and assembling processes and improve the working efficiency;

2. the quick cutter replacing device based on the double-cam structure realizes the overall structure simplification of the shield cutter holder, is convenient for the disassembly and the installation of the cutter, and realizes the efficient cutter changing operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first perspective view of a quick tool changer based on a double cam structure according to the present invention.

Fig. 2 is a top view of a quick tool changer based on a double cam structure according to the present invention.

Fig. 3 is a second perspective view of the quick tool changer based on the dual cam structure according to the present invention.

Fig. 4 is a schematic diagram of the internal structure of a quick tool changer based on a double cam structure according to the present invention.

Fig. 5 is a schematic structural diagram of a fixture block of the rapid tool changer based on the dual-cam structure.

Fig. 6 is a front view of an adjusting lever of the quick tool changer based on the double cam structure according to the present invention.

Fig. 7 is a plan view of an adjusting lever of a rapid tool changer based on a double cam structure according to the present invention.

The reference numerals are explained below:

1. a tool apron; 2. a fixing hole; 3. an adjustment hole; 4. a chute; 5. an inner rotating block; 6. hobbing cutters; 7. a knife bin; 8. fixing the bolt; 9. adjusting a rod; 10. briquetting; 11. a clamping block; 12. a wedge-shaped groove; 13. a support spring; 14. clamping a head; 15. a top groove; 16. a top block; 17. a rotating rod; 18. a cam plate; 19. a limiting groove; 20. a clamping groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model, and further, the terms "first", "second", etc., are used only for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more of such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.

The utility model will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-7, a fast tool changer based on a double cam structure, includes a tool post 1, a tool magazine 7 penetrating up and down is arranged in the middle of the tool post 1, rotatable inner rotating blocks 5 are arranged in the middle of the front and back sides of the tool magazine 7, the inner rotating blocks 5 are used for supporting and fixing, the inner rotating blocks 5 are circular, a clamping groove 20 is arranged on the inner rotating blocks 5, a sliding groove 4 is arranged above the inner rotating blocks 5, the width of the clamping groove 20 is equal to that of the sliding groove 4, a pressing block 10 is arranged below the inner rotating blocks 5, the pressing block 10 is used for fixing, the pressing block 10 is fixedly connected with a fixing bolt 8 of the tool post 1, and a fixing hole 2 is arranged on the pressing block 10 and the tool post 1 corresponding to the fixing bolt 8; a hob 6 is arranged in the middle of the hob bin 7, the cutter shafts at the front end and the rear end of the hob 6 are clamped in the clamping grooves 20, and the cross section of each cutter shaft is square matched with the clamping grooves 20 in shape; the left side and the right side of the chute 4 are respectively provided with an adjusting hole 3, an adjusting rod 9 is arranged in the adjusting hole 3 through a bearing, the adjusting rod 9 is used for adjusting, the adjusting rod 9 comprises a rotating rod 17 and a cam disc 18, the upper end of the rotating rod 17 is provided with an inner hexagonal clamping hole, the lower end of the rotating rod 17 is fixedly provided with the cam disc 18, and the cam disc 18 is used for jacking; the adjusting hole 3 below is provided with the sliding chamber, the internal rotation piece 5 corresponds the sliding chamber position and is provided with spacing groove 19, spacing groove 19 is used for spacing, the activity is provided with fixture block 11 in the sliding chamber, fixture block 11 is used for blocking solid, be provided with the wedge groove 12 with the lateral wall looks interlock of sliding chamber on the both sides side around the fixture block 11, fixture block 11 is close to internal rotation piece 5 one end fixed mounting has cross sectional shape and is trapezoidal dop 14, dop 14 card is in spacing groove 19, the fixture block 11 upper surface is provided with top groove 15, one side fixed mounting who keeps away from internal rotation piece 5 on the inside lateral wall of top groove 15 has kicking block 16, kicking block 16 is used for the atress to support, fixture block 11 keeps away from internal rotation piece 5 one end fixed mounting has supporting spring 13, supporting spring 13 is used for the elastic support, supporting spring 13 keeps away from fixture block 11 one end fixed connection on the side wall of sliding chamber.

The working principle is as follows: when the tool rest is used, the pressing block 10 and the tool rest 1 are fixed by the fixing bolt 8 through the bolt hole, the cam disc 18 pushes the ejector block 16 by rotating the rotating rod 17, the supporting spring 13 is compressed, the clamping block 11 slides out of the limiting groove 19, the ejector block 16 is clamped at the protruding position of the cam disc 18 due to the fact that the protruding position of the cam disc 18 is provided with the crescent notch, the inner rotating block 5 is rotated, the clamping groove 20 is rotated to the position of the sliding groove 4, the cutter shaft of the hob 6 slides into the clamping groove 20, installation of the hob 6 is achieved, then the cutter shaft is rotated to the corresponding installation position through 180-degree rotation of the inner rotating block 5, butt joint of the notch is achieved, the cam disc 18 loosens the ejector block 16 by rotating the rotating rod 17, the supporting spring 13 supports and resets, and the clamping block 11 is clamped into the limiting groove 19, and rotation of the inner rotating block 5 is limited.

While there have been shown and described what are at present considered to be the fundamental principles of the utility model, its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is to be accorded the full scope of the utility model as hereinafter claimed.

Claims (2)

1. The utility model provides a quick cutter change device based on two cam structures, includes blade holder (1), its characterized in that: a cutter bin (7) which penetrates through the cutter bin (1) up and down is arranged in the middle of the cutter bin (7), a rotatable inner rotating block (5) is arranged in the middle of the front side and the rear side of the cutter bin (7), the inner rotating block (5) is circular, a clamping groove (20) is formed in the inner rotating block (5), a sliding groove (4) is formed in the upper portion of the inner rotating block (5), the width of the clamping groove (20) is equal to that of the sliding groove (4), a pressing block (10) is arranged below the inner rotating block (5), the pressing block (10) is fixedly connected with a fixing bolt (8) of the cutter bin (1), and a fixing hole (2) is formed in the positions, corresponding to the fixing bolt (8), of the pressing block (10) and the cutter bin (1); a hob (6) is arranged in the middle of the knife bin (7), the cutter shafts at the front end and the rear end of the hob (6) are clamped in the clamping groove (20), and the cross section of each cutter shaft is square matched with the shape of the clamping groove (20).

2. The quick tool changer based on the double cam structure as claimed in claim 1, wherein: adjusting holes (3) are respectively formed in the left side and the right side of the sliding groove (4), an adjusting rod (9) is installed inside each adjusting hole (3) through a bearing, each adjusting rod (9) comprises a rotating rod (17) and a cam disc (18), an inner hexagonal clamping hole is formed in the upper end of each rotating rod (17), and the cam disc (18) is fixedly installed at the lower end of each rotating rod (17); a sliding chamber is arranged below the adjusting hole (3), a limiting groove (19) is arranged at the position of the inner rotating block (5) corresponding to the sliding chamber, a clamping block (11) is movably arranged in the sliding chamber, wedge-shaped grooves (12) meshed with the side walls of the sliding chamber are arranged on the side surfaces of the front side and the back side of the clamping block (11), one end of the clamping block (11) close to the inner rotating block (5) is fixedly provided with a clamping head (14) with a trapezoidal section, the clamping head (14) is clamped in the limiting groove (19), the upper surface of the clamping block (11) is provided with an ejecting groove (15), a top block (16) is fixedly arranged on one side of the inner side wall of the top groove (15) far away from the inner rotating block (5), a supporting spring (13) is fixedly arranged at one end of the clamping block (11) far away from the inner rotating block (5), one end of the supporting spring (13), which is far away from the fixture block (11), is fixedly connected to the side wall of the sliding chamber.

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