Duplex hob structure

Abstract

The utility model discloses a duplex hob structure, which belongs to the technical field of duplex hobs and is characterized in that the duplex hob structure comprises two side supports and a middle support, cutter shafts are arranged on the two side supports and the middle support, two cavities are arranged between the two side supports and the middle support, and the cutter shafts are arranged on the two side supports and the middle support. The two cavities are mutually independent and not communicated, a hob is arranged in each cavity, a fixing ring and a connecting ring are arranged on the middle support, and locking pieces are arranged at the two ends of the cutter shaft. According to the scheme, the two hobs can be independent of each other without influence, the service life of the hobs is prolonged, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to double cutter technology fields, concretely is a double cutter structure. BACKGROUND

[0002] The existing center double cutter is communicated through the middle support, so that the lubricating oil flows freely through the middle support oil hole, however, this design realizes the lubricating function to a certain extent, but when one side seal fails to leak, the lubricating oil will be lost in large quantities, so that both sides of the cutter cannot work normally, which seriously affects the service life of the cutter, and when one cutter needs to be maintained, it must be completely disassembled, which is complicated and affects the maintenance progress, therefore, the double cutter structure is provided. SUMMARY

[0003] In view of the problems in the prior art, the utility model aims to provide a double cutter structure, which can make two cutters independent and not affect each other, improve the service life of the cutter and facilitate maintenance.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a double cutter structure, comprising two side supports and a middle support, two cutter shafts are arranged on the two side supports and the middle support, two cavities are arranged between the two side supports and the middle support, the two cavities are independent and not communicated with each other, one cutter is arranged in each cavity, a fixing ring and a connecting ring are arranged on the middle support, and locking members are arranged at both ends of the cutter shaft.

[0005] In some embodiments, the locking member comprises a locking nut and a bolt, an annular groove is arranged on each of the two side supports, the locking nut is located in the annular groove, and threads are arranged at both ends of the cutter shaft.

[0006] In some embodiments, a fastening ring is sleeved on the end of the cutter shaft, and the fastening ring is connected with the locking nut.

[0007] In some embodiments, a limiting straight edge is arranged on the end of the cutter shaft, and the inner ring cross section of the fastening ring is consistent with the end of the cutter shaft.

[0008] In some embodiments, the fixing ring is in interference fit with the cutter shaft.

[0009] In summary, the utility model has the following beneficial effects:

[0010] The utility model discloses adopt two side surface support and the two cavity of intermediate support between mutual design of not intercommunication, the side cavity of the hob in one side to the oil leakage and cannot work, the hob in the cavity of the other side also will not be affected, can work normally, ensure the smooth progress of work, improved the reliability of hob, and two side surface supports can be independently detached, do not influence each other, convenient and fast maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the overall structure of the utility model sectional view;

[0012] Fig. 2 It is the partial structure schematic view of the utility model;

[0013] Fig. 3 It is the assembly schematic view of the utility model.

[0014] In the drawing: 1, cutter shaft;11, limit straight edge;2, hob;3, intermediate support;31, fixed ring;32, connecting ring;4, locking piece;41, locking nut;42, bolt;5, side surface support. DETAILED DESCRIPTION

[0015] In the description of the utility model, it needs to explain, the orientation or position relation that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" etc. are based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element that is indicated must have a particular orientation, with particular orientation structure and operation, therefore can not be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and can not be understood as indicating or implying relative importance.

[0016] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the terms "mounting", "connecting", "connection" should be broad understanding, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through the intermediate medium, can be the communication of two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0017] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further described in detail below in combination with specific embodiments and referring to the drawings. It should be understood that these descriptions are only exemplary, and not to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] Referring to Figs. 1-3 The double gang cutter structure comprises two side supports 5 and a middle support 3, cutter shafts 1 are arranged on the two side supports 5 and the middle support 3, two cavities are arranged between the two side supports 5 and the middle support 3, the two cavities are independent and not communicated with each other, one cutter 2 is arranged in each cavity, a fixing ring 31 and a connecting ring 32 are arranged on the middle support 3, and locking members 4 are arranged at the two ends of the cutter shafts 1. According to the above technical scheme, the cutter shafts 1 are inserted into the middle support 3 during installation, then the two cutters 2 are installed on the cutter shafts 1 and located at the two sides of the middle support 3, and then the two ends of the cutter shafts 1 are locked with one side support 5 through the locking members 4, that is, the installation is completed. Since the cavities between the middle support 3 and the two side supports 5 are not communicated, the two cutters 2 work independently and do not interfere with each other. If one side fails or leaks oil, the other side will not be disturbed, so the whole will not be affected, ensuring the use of one cutter 2 and improving the service life of the whole. During maintenance, the operator can disassemble one side without affecting the other side, without the need for complete disassembly, so that rapid disassembly and replacement can be achieved, improving the maintenance efficiency.

[0019] In some embodiments, the locking member 4 comprises a locking nut 41 and a bolt 42, the two side supports 5 are each provided with an annular groove, the locking nut 41 is located in the annular groove, and the two ends of the cutter shaft 1 are provided with threads. During installation, the operator screws the locking nut 41 to the end of the cutter shaft 1 through the threads and locates it in the annular groove, then fixes the locking nut 41 with the side support 5 through the two bolts 42, so as to fix the cutter shaft 1 and the cutter 2 with the side support 5, preventing the cutter shaft 1 from loosening and playing a locking and anti-loosening role.

[0020] In some embodiments, the end of the cutter shaft 1 is sleeved with a fastening ring, and the fastening ring is connected with the locking nut 41. The fastening ring and the locking nut 41 are connected by spot welding, so that the fastening ring and the locking nut 41 become an integral whole, which not only facilitates the operator's operation of the locking nut 41, but also enables the operator to quickly place the locking nut 41 into the annular groove by sleeving the fastening ring on the cutter shaft 1.

[0021] In some embodiments, the end of the cutter shaft 1 is provided with a limiting straight edge 11, and the inner ring cross section of the fastening ring is consistent with the end of the cutter shaft 1. The end of the cutter shaft 1 is provided with a limiting straight edge 11, that is, the cross section shape of the end of the cutter shaft 1 is no longer a regular circle, which plays a limiting role and can avoid the self-rotation of the cutter shaft 1, ensuring that the cutter shaft 1 does not loosen.

[0022] In some embodiments, the fixing ring 31 is in interference fit with the cutter shaft 1. The interference fit between the fixing ring 31 and the cutter shaft 1 can ensure the tight connection between the cutter shaft 1 and the two cutters 2 and improve the connection strength.

[0023] The specific embodiments are only an interpretation of the utility model, and are not a limitation of the utility model. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A double gang cutter structure, characterized by: The utility model relates to a rolling cutter device, including two side supports (5) and middle support (3), two two side supports (5) and middle support (3) are provided with cutter shaft (1), two side supports (5) and middle support (3) are provided with two cavities, and two the cavity is independent and is not intercommunicated, and each the cavity is provided with a hob (2), middle support (3) is provided with fixed ring (31) and connecting ring (32), the both ends of cutter shaft (1) are provided with locking piece (4).

2. The double gang cutter structure according to claim 1, characterized in that: The locking piece (4) includes a locking nut (41) and a bolt (42), both side supports (5) are provided with an annular groove, and the locking nut (41) is located in the annular groove, both ends of the cutter shaft (1) are provided with threads.

3. The ganged cutter construction of claim 2 wherein: The end of the cutter shaft (1) is sleeved with a fastening ring, and the fastening ring is connected with the locking nut (41).

4. The double gang cutter structure according to claim 3, characterized in that: The end of the cutter shaft (1) is provided with a limiting straight edge (11), and the inner ring cross section of the fastening ring is consistent with the end of the cutter shaft (1).

5. The double gang cutter construction of claim 1 wherein: The fixed ring (31) is in interference fit with the cutter shaft (1).

Images