Mandrel rod convenient to maintain

Abstract

The utility model discloses a core shaft rod convenient to maintain, which comprises a core shaft rod assembly, the core shaft rod assembly comprises two shaft rod bodies, a threaded end, a first connecting shell and a second connecting shell, the threaded end is arranged at one end of each shaft rod body, and the first connecting shell is arranged at the other end of each shaft rod body. The first connecting shell and the second connecting shell are arranged on the side, away from the threaded end, of the shaft rod body. The mounting assembly is arranged on one side of the first connecting shell and comprises a mounting shell, a fixing ring, a mounting part and a dismounting part, the mounting shell is fixed to one side of the first connecting shell, and the fixing ring is fixed to one side of the mounting shell. The utility model has the beneficial effects that the sectional assembly of the shaft rod body can be realized through the core shaft rod assembly, the disassembly work is also convenient, and the shaft rod bodies at the two ends can be conveniently and quickly assembled and disassembled through the mounting assembly, so that when the shaft rod body is damaged, the whole shaft rod body does not need to be replaced, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mandrel rod, especially a mandrel rod convenient to maintain. BACKGROUND

[0002] The mandrel rod is an important component in the extruder, and the main function is to transmit the torque from the transmission system to each screw element to overcome the resistance in the extrusion process, and also play the role of connecting each screw element, to ensure that they can be installed on the mandrel in order and stably, forming a complete extrusion system, the mandrel rod is usually made of metal material, and has certain strength and durability to adapt to the working environment of high-speed operation.

[0003] At present, the existing mandrel rod is mostly integrally arranged, and the integral mandrel cannot better adapt to different extruder models and screw configurations, reduces the flexibility and adaptability of the equipment, and if a part fails, the traditional integral design requires replacing the entire mandrel rod, which often wastes a lot of resources and increases unnecessary man-hours, not only that, the existing mandrel rod may not have a quick disassembly design, so more time and manpower are needed to disassemble and assemble during maintenance or replacement, affecting production efficiency. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above and / or existing problems in the mandrel rod convenient to maintain, the utility model is proposed.

[0006] Therefore, the problem to be solved by the utility model is that the prior art mandrel rod is integrally arranged, and the entire mandrel needs to be replaced when damaged, which consumes resources.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a mandrel rod convenient to maintain, comprising

[0008] The mandrel rod assembly comprises two shaft rod bodies, a threaded end, a first connecting shell and a second connecting shell, the threaded end is arranged at one end of the shaft rod body, and the first connecting shell and the second connecting shell are arranged on the side of the shaft rod body away from the threaded end; and

[0009] The mounting assembly is arranged on one side of the first connecting shell and comprises a mounting shell, a fixing ring, a mounting piece and a dismounting piece, the mounting shell is fixed on one side of the first connecting shell, the fixing ring is fixed on one side of the mounting shell, the mounting piece is fixed inside the mounting shell, and the dismounting piece is arranged on one side inside the mounting shell.

[0010] As a preferred scheme of the core shaft rod convenient to maintain, the mounting assembly further comprises a reinforcing block, the reinforcing block is fixed on one side of the mounting shell, and one side is fixedly connected with the first connecting shell.

[0011] As a preferred scheme of the core shaft rod convenient to maintain, the core shaft rod assembly further comprises an internal thread groove and a screw rod end, the internal thread grooves are respectively arranged inside the first connecting shell and the second connecting shell, and the screw rod ends are respectively fixed to one end of the two shaft rod bodies close to the first connecting shell and the second connecting shell.

[0012] As a preferred scheme of the core shaft rod convenient to maintain, the mounting piece comprises a first spring, a first clamping plate and a second clamping plate, the first spring is fixed to the top of the inner cavity of the mounting shell, the bottom is fixedly connected with the first clamping plate, and the second clamping plate is fixed to one side of the second connecting shell.

[0013] As a preferred scheme of the core shaft rod convenient to maintain, the mounting piece further comprises a reinforcing plate, a sliding block and a sliding rod, the reinforcing plate is fixed to the top of the second clamping plate, one side is fixedly connected with the second connecting shell, the sliding block is fixed to one side of the first clamping plate, the inside is slidingly connected with the sliding rod, and both ends of the sliding rod are fixedly connected with the inner wall of the mounting shell.

[0014] As a preferred scheme of the core shaft rod convenient to maintain, the mounting assembly further comprises an insertion shell and an insertion rod, the insertion shell is fixed to the front and back sides of one side of the fixing ring, and the insertion rod is fixed to the front and back sides of one side of the second connecting shell.

[0015] As a preferred scheme of the core shaft rod convenient to maintain, the mounting assembly further comprises a retaining groove and an elastic sheet, the retaining groove is arranged inside the insertion shell, and the elastic sheet is fixed to the front and back sides of the insertion rod.

[0016] As a preferred scheme of the utility model discloses the core axle rod convenient to maintain, wherein: the dismounting piece still includes the second spring, the second spring is fixed to one side of the second inclined block, and the other side is fixedly connected with the fixed ring.

[0017] As a preferred scheme of the utility model discloses the core axle rod convenient to maintain, wherein: the dismounting piece still includes the second spring, the second spring is fixed to one side of the second inclined block, and the other side is fixedly connected with the fixed ring.

[0018] As a preferred scheme of the utility model discloses the core axle rod convenient to maintain, wherein: the dismounting piece still includes the second spring, the second spring is fixed to one side of the second inclined block, and the other side is fixedly connected with the fixed ring.

[0019] The utility model has the advantages that: through core axle rod subassembly can realize to the axle rod body sectional type assembly, also convenient dismounting work simultaneously, through installation component, the both end axle rod body is conveniently installed and is disassembled fast, when the axle rod body is damaged, need not replace whole, reduce maintenance cost, and the split type core axle rod can better adapt to different extruder model and screw configuration, improve the flexibility and adaptability of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings. Wherein:

[0021] Figure 1 The overall structure diagram of the core axle rod convenient to maintain.

[0022] Figure 2 The overall structure diagram of the core axle rod convenient to maintain.

[0023] Figure 3 The second connecting shell expansion structure diagram of the core axle rod convenient to maintain.

[0024] Figure 4 The installation shell internal structure diagram of the core axle rod convenient to maintain.

[0025] Figure 5 The installation component structure diagram of the core axle rod convenient to maintain.

[0026] Figure 6 Another structural view of the disassembly component of the mandrel for easy maintenance.

[0027] The following labels are used in the diagram: 100, mandrel assembly; 101, shaft body; 102, threaded end; 103, first connecting shell; 104, second connecting shell; 105, internal thread groove; 106, lead screw end; 200, mounting assembly; 201, mounting shell; 202, retaining ring; 203, mounting component; 203a, first spring; 203b, first clamping plate; 203c, second clamping plate; 203d, reinforcing plate; 203e, slider; 203f, sliding rod; 204, disassembly component; 204a, first inclined block; 204b, second inclined block; 204c, limiting groove; 204d, push plate; 204e, push ring; 204f, second spring; 204g, limiting rod; 205, reinforcing block; 206, insert shell; 207, insert rod; 208, retaining groove; 209, elastic sheet. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0031] Example 1

[0032] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a mandrel that is easy to maintain. The mandrel that is easy to maintain includes a mandrel assembly 100 and an installation assembly 200. The mandrel assembly 100 can realize the segmented assembly of the shaft body 101, and similarly, it is also convenient to disassemble. The installation assembly 200 facilitates the quick installation and disassembly of the shaft bodies 101 at both ends. Therefore, when the shaft body 101 is damaged, it is not necessary to replace the whole shaft, thus reducing maintenance costs.

[0033] The core shaft rod assembly 100 comprises two shaft rod bodies 101, a threaded end 102, a first connecting shell 103 and a second connecting shell 104, the threaded end 102 is arranged at one end of the shaft rod body 101, and the first connecting shell 103 and the second connecting shell 104 are arranged at the side, away from the threaded end 102, of the shaft rod body 101.

[0034] The threaded end 102 is arranged at one end of the shaft rod body 101, facilitating the connection with other end heads, and the first connecting shell 103 and the second connecting shell 104 facilitate the mounting and fixing of the shaft rod body 101.

[0035] The mounting assembly 200 is arranged at one side of the first connecting shell 103 and comprises a mounting shell 201, a fixing ring 202, a mounting piece 203 and a dismounting piece 204, the mounting shell 201 is fixed at one side of the first connecting shell 103, the fixing ring 202 is fixed at one side of the mounting shell 201, the mounting piece 203 is fixed in the mounting shell 201, and the dismounting piece 204 is arranged at one side in the mounting shell 201.

[0036] The mounting piece 203 is fixed by the mounting shell 201 cooperating with the fixing ring 202, facilitating the mounting and fixing of the two shaft rod bodies 101 cooperating with the first connecting shell 103 and the second connecting shell 104, and the first connecting shell 103 and the second connecting shell 104 can be dismounted by the dismounting piece 204 cooperating with the mounting piece 203.

[0037] Embodiment 2

[0038] Referring to Figure 3 , Figure 4 and Figure 5 , this is the second embodiment of the utility model, and the embodiment is based on the previous embodiment.

[0039] Specifically, the mounting assembly 200 further comprises a reinforcing block 205, the reinforcing block 205 is fixed at one side of the mounting shell 201 and is fixedly connected with the first connecting shell 103 at one side.

[0040] The reinforcing block 205 is fixed between the first connecting shell 103 and the mounting shell 201, thereby improving the connection strength between the mounting shell 201 and the first connecting shell 103 and ensuring the service life of the shaft rod body 101 cooperating with the first connecting shell 103 and the second connecting shell 104.

[0041] Specifically, the core shaft rod assembly 100 further comprises internal thread grooves 105 and screw rod ends 106, the internal thread grooves 105 are respectively arranged in the interiors of the first connecting shell 103 and the second connecting shell 104, and the screw rod ends 106 are respectively fixed at one end of the two shaft rod bodies 101 close to the first connecting shell 103 and the second connecting shell 104.

[0042] The cooperation of the inner threaded groove 105 and the screw rod end 106 facilitates the assembly of the two shaft bodies 101 with the first connecting shell 103 and the second connecting shell 104 respectively.

[0043] Specifically, the mounting component 203 comprises a first spring 203a, a first clamping plate 203b and a second clamping plate 203c. The first spring 203a is fixed to the top of the inner cavity of the mounting shell 201, and the bottom is fixedly connected with the first clamping plate 203b. The second clamping plate 203c is fixed to one side of the second connecting shell 104.

[0044] By first inserting the second connecting shell 104 with the second clamping plate 203c aligned with the mounting shell 201, the inclined surface of the first clamping plate 203b will contact the inclined surface of the second clamping plate 203c at this time, and the first clamping plate 203b will be forced to move upward and compress the first spring 203a, until the second clamping plate 203c is completely inserted into the inside of the mounting shell 201, thereby completing the fixed installation.

[0045] Specifically, the mounting component 203 further comprises a reinforcing plate 203d, a sliding block 203e and a sliding rod 203f. The reinforcing plate 203d is fixed to the top of the second clamping plate 203c, and one side is fixedly connected with the second connecting shell 104. The sliding block 203e is fixed to one side of the first clamping plate 203b, and the inside is slidingly connected with the sliding rod 203f. Both ends of the sliding rod 203f are fixedly connected with the inner wall of the mounting shell 201.

[0046] By fixing the reinforcing plate 203d between the second clamping plate 203c and the second connecting shell 104, the strength and service life of the second clamping plate 203c can be improved, preventing the second clamping plate 203c from breaking after long-term use of the shaft body 101, and the first clamping plate 203b and the sliding block 203e are fixed, and the movement of the sliding block 203e on the surface of the sliding rod 203f is limited with the movement of the first clamping plate 203b, so as to limit the movement path of the first clamping plate 203b and ensure the stability of the movement.

[0047] Specifically, the mounting assembly 200 further comprises an insertion shell 206 and an insertion rod 207. The insertion shell 206 is fixed to the front and rear sides of one side of the fixing ring 202, and the insertion rod 207 is fixed to the front and rear sides of one side of the second connecting shell 104.

[0048] By fixing the insertion shell 206 to one side of the fixing ring 202, and inserting the insertion rod 207 on the second connecting shell 104 into the inside of the insertion shell 206, the transverse bearing capacity of the second connecting shell 104 and the mounting shell 201 during assembly can be improved, and the stability of the connection position in use can be ensured.

[0049] Specifically, the mounting assembly 200 further comprises a retaining groove 208 and an elastic sheet 209, the retaining groove 208 is arranged in the interior of the insertion shell 206, and the elastic sheet 209 is fixed to the front and rear sides of the insertion rod 207.

[0050] When the insertion rod 207 moves, the elastic sheet 209 is compressed into the interior of the insertion shell 206 until the elastic sheet 209 is exposed to the outside of the retaining groove 208, thereby enhancing the stability of the installation.

[0051] Embodiment 3

[0052] With reference to Figure 5 and Figure 6 The third embodiment of the utility model is based on the first two embodiments.

[0053] Specifically, the dismounting piece 204 comprises a first inclined block 204a, a second inclined block 204b, a limiting groove 204c, a push plate 204d and a push ring 204e, the first inclined block 204a is fixed to one side of the first clamping plate 203b and is slidably connected with the second inclined block 204b, the limiting groove 204c is arranged in one side of the interior of the mounting shell 201, the push plate 204d is fixed to one side of the second inclined block 204b and the other side penetrates to the outside of the limiting groove 204c and is fixedly connected with the push ring 204e.

[0054] When the user needs to release the fixation of the second clamping plate 203c, the push ring 204e can be pushed to one side, at this time, the push ring 204e will limit the movement of the push plate 204d in the interior of the limiting groove 204c, with the movement of the push plate 204d, the second inclined block 204b will press against the first inclined block 204a, and the first inclined block 204a under stress will drive the first clamping plate 203b to move upwards and compress the first spring 203a, and the inclination of the first inclined block 204a and the second inclined block 204b is greater than the inclination between the first clamping plate 203b and the second clamping plate 203c, so that the second clamping plate 203c can be conveniently and quickly dismounted.

[0055] Specifically, the dismounting piece 204 further comprises a second spring 204f, the second spring 204f is fixed to one side of the second inclined block 204b and the other side is fixedly connected with the fixing ring 202.

[0056] When the second inclined block 204b is pushed to one side under stress, the second spring 204f will also be stretched, and when the second inclined block 204b is not under stress, the second spring 204f can assist the second inclined block 204b to reset.

[0057] Specifically, the dismounting piece 204 further comprises a limiting rod 204g which is slidingly connected to the interior of the second inclined block 204b and fixedly connected with the mounting shell 201 and the fixing ring 202 at both ends.

[0058] By slidingly connecting the limiting rod 204g to the interior of the second inclined block 204b, the path of the second inclined block 204b can be limited to assist the movement, and the bottom of the inner cavity of the first inclined block 204a is further provided with a notch to prevent the first inclined block 204a from being restrained by the limiting rod 204g when being lifted up.

[0059] In use, first, the two shaft bodies 101 are assembled with the screw rod ends 106 and the first connecting shell 103 and the second connecting shell 104 respectively, then the second connecting shell 104 drives the second clamping plate 203c to be inserted into the mounting shell 201, at this time, the inclined surface of the first clamping plate 203b will be in contact with the inclined surface of the second clamping plate 203c, and the first clamping plate 203b will be forced to move upward, when the first clamping plate 203b moves, the sliding block 203e will be limited to move on the surface of the sliding rod 203f and compress the first spring 203a, until the second clamping plate 203c is completely inserted into the interior of the mounting shell 201, thereby completing the fixed installation, at the same time, the second connecting shell 104 also drives the insertion rod 207 to be inserted into the insertion shell 206 through the elastic sheet 209 on the insertion rod 207 until the elastic sheet 209 is exposed outside the retaining groove 208, thereby enhancing the stability of the installation, if the user needs to disassemble and maintain, the push ring 204e is pushed to one side, at this time, the push ring 204e will be limited in the limiting groove 204c to drive the push plate 204d to move, with the movement of the push plate 204d, the second inclined block 204b will press against the first inclined block 204a, at this time, the first inclined block 204a will be limited to move on the surface of the limiting rod 204g and stretch the second spring 204f, and the first inclined block 204a under stress will drive the first clamping plate 203b to move upward and compress the first spring 203a, and the inclination of the first inclined block 204a and the second inclined block 204b is greater than the inclination between the first clamping plate 203b and the second clamping plate 203c, so that the second clamping plate 203c can be conveniently and quickly disassembled.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A mandrel shaft that facilitates maintenance, characterized by: The utility model relates to a core shaft rod assembly (100) and mounting assembly (200), and the core shaft rod assembly (100) comprises two shaft rod bodies (101), a threaded end (102), a first connecting shell (103) and a second connecting shell (104), the threaded end (102) is arranged at one end of the shaft rod body (101), and the first connecting shell (103) and the second connecting shell (104) are arranged at the side of the shaft rod body (101) away from the threaded end (102) respectively. The mounting assembly (200) is arranged at one side of the first connecting shell (103) and comprises a mounting shell (201), a fixing ring (202), a mounting piece (203) and a dismounting piece (204), the mounting shell (201) is fixed at one side of the first connecting shell (103), the fixing ring (202) is fixed at one side of the mounting shell (201), the mounting piece (203) is fixed in the mounting shell (201), and the dismounting piece (204) is arranged at one side in the mounting shell (201). The mounting assembly (200) further comprises a reinforcing block (205), the reinforcing block (205) is fixed at one side of the mounting shell (201) and is fixedly connected with the first connecting shell (103) at one side.

2. The easy-to-maintain mandrel rod of claim 1, wherein: The core shaft rod assembly (100) further comprises an internal thread groove (105) and a screw rod end (106), the internal thread groove (105) is arranged in the first connecting shell (103) and the second connecting shell (104) respectively, and the screw rod end (106) is fixed at one end of the two shaft rod bodies (101) close to the first connecting shell (103) and the second connecting shell (104) respectively.

3. The maintenance-friendly mandrel rod of claim 1, wherein: The mounting piece (203) comprises a first spring (203a), a first clamping plate (203b) and a second clamping plate (203c), the first spring (203a) is fixed at the top of the inner cavity of the mounting shell (201) and is fixedly connected with the first clamping plate (203b) at the bottom, and the second clamping plate (203c) is fixed at one side of the second connecting shell (104).

4. The maintenance-friendly mandrel rod of claim 1, wherein: The mounting piece (203) further comprises a reinforcing plate (203d), a sliding block (203e) and a sliding rod (203f), the reinforcing plate (203d) is fixed at the top of the second clamping plate (203c) and is fixedly connected with the second connecting shell (104) at one side, the sliding block (203e) is fixed at one side of the first clamping plate (203b) and is slidingly connected with the sliding rod (203f) in the inside, and both ends of the sliding rod (203f) are fixedly connected with the inner wall of the mounting shell (201).

5. The maintenance-friendly mandrel rod of claim 4, wherein: The mounting assembly (200) further comprises an insertion shell (206) and an insertion rod (207), the insertion shell (206) is fixed at the front and back sides of one side of the fixing ring (202), and the insertion rod (207) is fixed at the front and back sides of one side of the second connecting shell (104).

6. The maintenance-friendly mandrel rod of claim 1, wherein: ​ 7. The maintenance-friendly mandrel rod of claim 6, wherein: The mounting assembly (200) further comprises a retaining groove (208) and an elastic sheet (209), the retaining groove (208) is arranged in the inside of the insertion shell (206), and the elastic sheet (209) is fixed to the front and back sides of the insertion rod (207).

8. The maintenance-friendly mandrel rod of claim 4, wherein: The dismounting piece (204) comprises a first inclined block (204a), a second inclined block (204b), a limiting groove (204c), a push plate (204d) and a push ring (204e), the first inclined block (204a) is fixed to one side of the first clamping plate (203b) and is slidably connected with the second inclined block (204b) on one side, the limiting groove (204c) is arranged on one side of the inside of the mounting shell (201), the push plate (204d) is fixed to one side of the second inclined block (204b) and is fixedly connected with the push ring (204e) on the other side and penetrates to the outside of the limiting groove (204c).

9. The maintenance-friendly mandrel rod of claim 8, wherein: The dismounting piece (204) further comprises a second spring (204f), the second spring (204f) is fixed to one side of the second inclined block (204b) and is fixedly connected with the fixing ring (202) on the other side.

10. The maintenance-friendly mandrel rod of claim 9, wherein: The dismounting piece (204) further comprises a limiting rod (204g), the limiting rod (204g) is slidably connected in the inside of the second inclined block (204b) and is fixedly connected with the mounting shell (201) and the fixing ring (202) on both ends.

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