CN217056228U

CN217056228U - Lower die gear

Info

Publication number: CN217056228U
Application number: CN202221161032.6U
Authority: CN
Inventors: 程文虎; 白全幸
Original assignee: Tangxian Petroleum Cementing Tool Manufacturing Co ltd
Current assignee: Tangxian Petroleum Cementing Tool Manufacturing Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-07-26
Anticipated expiration: 2032-05-16

Abstract

The utility model belongs to the technical field of die accessories, in particular to a lower die gear, which comprises a central disc and a plurality of teeth which are distributed at equal intervals along the circumferential direction, wherein a central hole is arranged in the central disc; the teeth are detachably arranged on the circumferential surface of the outer wall of the central disc, and plastic silencing pieces are fixedly bonded on the outer wall of the teeth; flexible guide assemblies which are symmetrically distributed are also arranged on the teeth; the teeth of the lower die gear of the utility model are designed to be detachably mounted, and can be detached and replaced independently when damaged, thereby greatly reducing the maintenance cost of the lower die gear; the arrangement of the plastic mute piece can reduce the noise generated when the gear pair works, reduce the abrasion generated between teeth and prolong the service life of the gear, and the plastic mute piece only needs to be pasted with a new plastic mute piece after being damaged, so that the cost is low; due to the arrangement of the flexible guide assembly, abrasion between teeth is further reduced, and noise generated when the gear pair works can be reduced.

Description

Lower die gear

Technical Field

The utility model belongs to the technical field of the mould accessory, concretely relates to lower mould gear.

Background

The mould is used for making the tool of the shaping article, this kind of tool is formed by various parts, different moulds are formed by different parts, it mainly realizes the processing of the article appearance through the change of the physical state of the shaping material, it is the name of "industrial mother".

The gear is an important accessory in the die, the gear is a mechanical element which is provided with a gear on a wheel rim and continuously meshed to transmit motion and power, the influence in the die is very wide, and the gear is also one of most core component accessories in the lower die holder.

However, when the traditional lower die gear is used, great force and friction are generated between gear pairs, so that teeth of the gear are abraded to a great extent, the gear is inconvenient to replace, a new gear needs to be replaced, and the cost is high.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a lower mould gear has convenient to use, easily change and long service life's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a lower die gear comprises a central disc and a plurality of teeth which are distributed at equal intervals along the circumferential direction, wherein a central hole is formed in the central disc; the teeth are detachably arranged on the circumferential surface of the outer wall of the central disc, and plastic silencing pieces are fixedly adhered to the outer wall of the teeth; and flexible guide assemblies which are symmetrically distributed are also arranged on the teeth.

As a preferred technical scheme of the utility model, the utility model also comprises a bolt, a mounting block is fixed on the bottom surface of the tooth, and a mounting groove capable of accommodating the mounting block is arranged on the circumferential surface of the outer wall of the central disk; the mounting block is provided with a threaded hole, the central disc is provided with a through hole communicated with the mounting groove, and the bolt penetrates through the through hole and is screwed into the threaded hole in a threaded screwing mode.

As a preferred technical scheme of the utility model, the surface of center plate has a plurality of heat dissipation ribs that distribute along the circumferencial direction at equal intervals, just the heat dissipation rib is followed the radial extension of center plate.

As an optimized technical scheme of the utility model, the louvre that the multiunit evenly spaced apart along the circumferencial direction was seted up on the central disk.

As an optimal technical scheme of the utility model, the inner wall of mounting groove is fixed with Z type flexure strip the constant head tank that can hold Z type flexure strip has been seted up to the outer wall of installation piece.

As a preferred technical solution of the present invention, the flexible guiding assembly includes a roller, a slider and a telescopic spring, a movable groove is formed in the outer wall of the tooth for accommodating the roller, two guiding chutes symmetrically distributed are formed in the inner wall of the movable groove, the slider is slidably mounted in the guiding chutes, mounting shafts are fixed at both ends of the roller, and the mounting shafts are rotatably connected to the corresponding sliders; the telescopic springs are distributed between the sliding block and the inner bottom surface of the guide sliding groove.

Compared with the prior art, the beneficial effects of the utility model are that: the teeth of the lower die gear of the utility model are designed to be detachably installed, and can be detached and replaced independently when damaged, thereby greatly reducing the maintenance cost of the lower die gear; the arrangement of the plastic mute piece can reduce the noise generated when the gear pair works, reduce the abrasion generated between teeth and prolong the service life of the gear, and the plastic mute piece only needs to be pasted with a new plastic mute piece after being damaged, so that the cost is low; due to the arrangement of the flexible guide assembly, abrasion generated between the teeth is further reduced, and meanwhile, noise generated when the gear pair works can be reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic front sectional structural view of the center plate of the present invention;

fig. 3 is a schematic front sectional view of the tooth of the present invention;

in the figure: 1. a central disk; 2. a central bore; 3. teeth; 4. a plastic mute sheet; 5. mounting a block; 6. mounting grooves; 7. a bolt; 8. a through hole; 9. a threaded hole; 10. heat dissipation ribs; 11. heat dissipation holes; 12. positioning a groove; 13. a Z-shaped elastic sheet; 14. a movable groove; 15. a roller; 16. a slider; 17. installing a shaft; 18. a guide chute; 19. a telescopic spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a lower die gear comprises a central disc 1 and a plurality of teeth 3 which are distributed at equal intervals along the circumferential direction, wherein a central hole 2 is formed in the central disc 1; the teeth 3 are detachably arranged on the circumferential surface of the outer wall of the central disc 1, and plastic silencing pieces 4 are fixedly adhered to the outer wall of the teeth 3; the teeth 3 are also provided with flexible guide components which are symmetrically distributed, when the gear pair is used, the teeth 3 between the gear pair are mutually meshed to generate transmission, when the gear rotates, the corresponding flexible guide components are preferentially contacted, the noise generated when the gear pair works can be reduced due to the flexible effect, and meanwhile, the abrasion generated between the teeth 3 is further reduced; ABS plastics are selected for the plastic mute pieces 4, the strength is high, the toughness is good, the noise generated during the working of the gear pair can be reduced, the abrasion generated between the teeth 3 is reduced, the service life of the gear is prolonged, and after the plastic mute pieces 4 are damaged, only new plastic mute pieces 4 need to be pasted, so that the cost is low.

Specifically, as shown in fig. 1, the present embodiment further includes a bolt 7, a mounting block 5 is fixed on the bottom surface of the tooth 3, and a mounting groove 6 capable of accommodating the mounting block 5 is formed on the circumferential surface of the outer wall of the central plate 1; threaded holes 9 are formed in the mounting block 5, through holes 8 communicated with the mounting groove 6 are formed in the central disc 1, the bolts 7 penetrate through the through holes 8 and then are screwed into the threaded holes 9 in a threaded screwing mode, detachable mounting of the teeth 3 is achieved, and meanwhile stability of mounting of the teeth 3 can be guaranteed.

Specifically, as shown in fig. 1, in this embodiment, the surface of the central disk 1 has a plurality of heat dissipation ribs 10 distributed at equal intervals along the circumferential direction, and the heat dissipation ribs 10 extend along the radial direction of the central disk 1, so that the heat dissipation area of the central disk 1 is enlarged, the efficient heat dissipation of the central disk 1 is facilitated, and the structural strength of the central disk 1 is also improved.

Specifically, as shown in fig. 1, in this embodiment, a plurality of groups of heat dissipation holes 11 are formed in the central plate 1 and are distributed at equal intervals along the circumferential direction, which is helpful for efficient heat dissipation of the central plate 1.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, a Z-shaped elastic piece 13 is fixed on the inner wall of the mounting groove 6, a positioning groove 12 capable of accommodating the Z-shaped elastic piece 13 is formed in the outer wall of the mounting block 5, and after the mounting block 5 is embedded into the mounting groove 6, the Z-shaped elastic piece 13 is embedded into the positioning groove 12 to position the mounting position of the teeth 3, and meanwhile, the mounting stability of the teeth 3 is further improved.

Specifically, as shown in fig. 1 and fig. 3, in this embodiment, the flexible guide assembly includes a roller 15, a slider 16 and a telescopic spring 19, a movable groove 14 capable of accommodating the roller 15 is formed in an outer wall of the tooth 3, two guide sliding grooves 18 symmetrically distributed are formed in an inner wall of the movable groove 14, the slider 16 is slidably mounted in the guide sliding grooves 18, mounting shafts 17 are fixed to both ends of the roller 15, and the mounting shafts 17 are rotatably connected to the corresponding sliders 16; when the telescopic springs 19 are distributed between the sliding blocks 16 and the inner bottom surfaces of the guide sliding grooves 18, the corresponding rollers 15 are preferentially contacted and roll when the gears rotate, and simultaneously, the rollers 15 drive the sliding blocks 16 to slide along the guide sliding grooves 18 through the mounting shafts 17 and compress the telescopic springs 19 along with the rotation of the gears, so that buffering is generated, the noise generated when the gear pair works is reduced, and meanwhile, the abrasion generated between the teeth 3 is further reduced.

The utility model discloses a theory of operation and use flow: the utility model discloses a lower mould gear, when using, the tooth 3 intermeshing between the gear pair produces the transmission, and when the gear rotated, the contact of corresponding gyro wheel 15 priority produced roll, and simultaneously along with the rotation of gear, gyro wheel 15 drove slider 16 through installation axle 17 and slided and compress expanding spring 19 along guide chute 18, produced the buffering, the noise that produces when reducing gear pair during operation, further reduced the wearing and tearing that produce between the tooth 3 simultaneously;

ABS plastics are selected for the plastic mute pieces 4, the strength is high, the toughness is good, the noise generated during the working of the gear pair can be reduced, the abrasion generated between the teeth 3 is reduced, the service life of the gear is prolonged, and after the plastic mute pieces 4 are damaged, only new plastic mute pieces 4 need to be pasted, so that the cost is low.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lower mould gear, includes that spider (1) and a plurality of along equally spaced apart tooth (3) of circumferencial direction, its characterized in that: a central hole (2) is formed in the central disc (1); the teeth (3) are detachably arranged on the circumferential surface of the outer wall of the central disc (1), and plastic mute pieces (4) are fixedly bonded on the outer wall of the teeth (3); and flexible guide assemblies which are symmetrically distributed are also arranged on the teeth (3).

2. A lower die gear according to claim 1, wherein: the tooth-shaped fixture is characterized by further comprising a bolt (7), a mounting block (5) is fixed on the bottom surface of the tooth (3), and a mounting groove (6) capable of accommodating the mounting block (5) is formed in the circumferential surface of the outer wall of the central disc (1); the mounting block (5) is provided with a threaded hole (9), the central disc (1) is provided with a through hole (8) communicated with the mounting groove (6), and the bolt (7) penetrates through the through hole (8) and then is screwed into the threaded hole (9) in a threaded screwing mode.

3. A lower die gear according to claim 1, wherein: the surface of the central disc (1) is provided with a plurality of radiating ribs (10) which are distributed at equal intervals along the circumferential direction, and the radiating ribs (10) extend along the radial direction of the central disc (1).

4. The lower die gear according to claim 1, wherein: the central disc (1) is provided with a plurality of groups of radiating holes (11) which are distributed at equal intervals along the circumferential direction.

5. A lower die gear according to claim 2, wherein: the inner wall of the mounting groove (6) is fixed with a Z-shaped elastic sheet (13), and the outer wall of the mounting block (5) is provided with a positioning groove (12) capable of accommodating the Z-shaped elastic sheet (13).

6. A lower die gear according to claim 1, wherein: the flexible guide assembly comprises a roller (15), a sliding block (16) and a telescopic spring (19), a movable groove (14) capable of accommodating the roller (15) is formed in the outer wall of the tooth (3), two guide sliding grooves (18) which are symmetrically distributed are formed in the inner wall of the movable groove (14), the sliding block (16) is slidably mounted in the guide sliding grooves (18), mounting shafts (17) are fixed at two ends of the roller (15), and the mounting shafts (17) are rotatably connected with the corresponding sliding blocks (16); the extension spring (19) is distributed between the sliding block (16) and the inner bottom surface of the guide sliding groove (18).