CN211679335U

CN211679335U - Strong heavy-load wire drawing machine

Info

Publication number: CN211679335U
Application number: CN201922433085.3U
Authority: CN
Inventors: 谭礼春; 刘倩; 孟令云
Original assignee: Jiangsu Honta Machinery Co ltd
Current assignee: Jiangsu Honta Machinery Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-16
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a powerful heavy-duty wire drawing machine, which comprises a transmission box body, a wire drawing wheel shaft and a wire drawing wheel consisting of a wire drawing wheel body and a ceramic sleeve, wherein a bearing end cover with a sealed through cover is hermetically arranged on the transmission box body; axial tooth grooves and axial convex teeth which are mutually inserted are arranged between the inner hole of the ceramic sleeve of the wire drawing wheel and the wire drawing wheel body, and end face tooth grooves and end face convex teeth which are mutually inserted are respectively arranged on the end faces of the ceramic sleeve corresponding to the adjacent clamping rings. Adopt the utility model discloses a powerful heavy load wire drawing machine can guarantee wire drawing shaft sealing device compact structure, sealed effectual, can also guarantee that wire drawing wheel stable in structure does not skid to adapt to the drawing requirement of large specification wire rod.

Description

Strong heavy-load wire drawing machine

Technical Field

The utility model relates to a wire and cable production facility especially relates to a wire drawing production facility of wire and cable sinle silk.

Background

The wire drawing machine is a necessary equipment for forming the wire core in the wire and cable production equipment, a plurality of wire drawing wheels are rotatably supported on the wire drawing machine, the rotating speed of each wire drawing wheel is increased one by one from a wire inlet end to a wire outlet end of the wire drawing machine, a wire drawing die is arranged between every two adjacent wire drawing wheels, the wire core wire is wound around each wire drawing wheel in sequence, and is drawn, elongated and extended under the traction of the wire drawing wheels and the action of the wire drawing die to reach the required wire core diameter.

Because the drawing force required to be provided by the drawing machine is large and the drawing wheel shaft is loaded in the drawing process, a bearing for supporting the drawing wheel shaft must be fully lubricated, and an oil spraying lubrication mode is usually adopted, so that, a reliable sealing device must be arranged between a transmission box body and a wire drawing wheel shaft of the wire drawing machine, a sealing ring or an axial labyrinth sealing structure is usually adopted for sealing the corresponding part in the existing wire drawing machine, the sealing ring of the sealing structure of the sealing ring is easy to damage, the axial dimension of the axial labyrinth seal structure is long, the axial distance between the wire drawing wheel and the support bearing of the wire drawing wheel shaft is increased, the flexibility of the extending end of the wire drawing wheel shaft provided with the wire drawing wheel is increased, the normal operation of the wire drawing wheel is influenced, but also increases the radial runout of the wire drawing wheel shaft at the sealing device to influence the sealing effect of the sealing device, therefore, the two sealing structures are not ideal and cannot meet the drawing requirement of large-size wires with large loads.

In the wire drawing process, the wire drawing wheel bears the great radial pressure generated by the plastic deformation of the wire, and can form great local compressive stress on the surface of a wire drawing guide groove on the wire drawing wheel, so that the wire drawing wheel is easy to damage, and for the conventional integral wire drawing wheel, the whole wire drawing wheel can be scrapped, therefore, the utility model with the publication (publication) No. CN204912318U discloses a composite structure wire drawing wheel, which is formed by sleeving a ceramic sleeve with the wire drawing guide groove on the periphery of the wire drawing wheel body, so as to improve the pressure resistance of the surface of the wire drawing guide groove, avoid the whole scrapping of the wire drawing wheel by replacing the ceramic sleeve after the wire drawing guide groove is damaged, improve the service life of the wire drawing wheel, obtain good effect, particularly have obvious drawing advantage for small-diameter wires, but the ceramic sleeve is fixedly connected with the wire drawing wheel body by using axial pressure through a flange edge arranged at one end of the wire drawing wheel body and an axial pressing ring arranged at the other end of the wire drawing wheel body, when a wire rod with a large diameter is drawn, because the drawing force required to be provided by the wire drawing wheels is large, the mode that the ceramic sleeve is fixedly connected with the wire drawing wheel body through the axial pressing ring cannot well adapt to the use requirement, the connection between the ceramic sleeve and the wire drawing wheel body is often connected and slipped, the rotating speed between two adjacent wire drawing wheels in the wire drawing process cannot reach an ideal speed difference, and the finally obtained wire rod specification cannot meet the product specification requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a powerful heavy load wire drawing machine is provided to the above-mentioned not enough that exists to prior art, the utility model aims to solve the technical problem that a wire drawing wheel shaft sealing device compact structure, sealed effectual can also be guaranteed to the wire drawing wheel stable in structure not skid to the drawing requirement of adaptation large specification wire rod.

In order to solve the technical problem, the utility model discloses a powerful heavy-duty wire drawing machine, including the transmission box body, through the wire drawing wheel bearing rotate support on the transmission box body a plurality of wire drawing wheel axles and the wire drawing wheel that links firmly on the overhanging end of wire drawing wheel axle, the wire drawing wheel includes wire drawing wheel body and the ceramic cover of suit on the wire drawing wheel body, be equipped with the wire drawing guide slot along circumference in the ceramic cover outer lane, be equipped with the joint ring between two adjacent ceramic covers, be equipped with the flange limit that contacts with the ceramic cover in one end of wire drawing wheel body, install axial clamping ring at the other end of wire drawing wheel body, seal installation has the bearing end cover on the transmission box body, seal installation has sealed through lid on the bearing end cover, seal through the inboard of sealed through lid and install the stationary ring, be equipped with the spring between stationary ring and sealed through lid, the stationary ring can be along the axial activity seal support on sealed through, a static sealing ring is arranged on the inner end face of the static ring, a movable ring is fixedly connected to a wire drawing wheel shaft and is positioned between a wire drawing wheel bearing and the static ring, the inner hole of the movable ring is hermetically connected with the wire drawing wheel shaft through a sealing ring, a movable sealing ring matched with the static sealing ring is arranged on the end face of the outer side of the movable ring, a guide pin hole is formed in the sealed through cover, a guide pin is fixedly connected to the static ring, and the guide pin is movably inserted into the guide pin hole; the inner hole of the ceramic sleeve and the corresponding outer circle of the wire drawing wheel body are respectively provided with an axial tooth groove and an axial convex tooth which are mutually inserted, the axial tooth groove and the axial convex tooth are uniformly distributed along the circumferential direction, the height A of the axial tooth groove and the axial convex tooth is 2-5 mm, the end face of the ceramic sleeve corresponding to the adjacent clamping ring is respectively provided with an end face tooth groove and an end face convex tooth which are mutually clamped, the end face of the flange edge corresponding to the ceramic sleeve and the end face of the axial pressing ring corresponding to the ceramic sleeve are also respectively provided with an end face tooth groove and an end face convex tooth which are mutually clamped, and the height B of the end face tooth groove and the end face convex tooth is 1-3 mm.

In the structure, as the bearing end cover is hermetically arranged on the transmission case body, the sealed transparent cover is hermetically arranged on the bearing end cover, the inner side of the sealed transparent cover is provided with the static ring, a spring is arranged between the static ring and the sealed transparent cover, the static ring can be movably and hermetically supported on the sealed transparent cover along the axial direction through the sealing ring, the inner end surface of the static ring is provided with the static sealing ring, the wire drawing wheel shaft is fixedly connected with the dynamic ring, the dynamic ring is positioned between the wire drawing wheel bearing and the static ring, the inner hole of the dynamic ring is hermetically connected with the wire drawing wheel shaft through the sealing ring, the outer end surface of the dynamic ring is provided with the dynamic sealing ring matched with the static sealing ring, the sealed transparent cover is provided with the guide pin hole, the static ring is fixedly connected with the guide pin, the guide pin is movably inserted in the guide pin hole, and the static sealing is respectively arranged between the wire drawing wheel shaft and the dynamic ring, between the transmission case body and the bearing end cover, the sealing ring can ensure good sealing effect, the sealing between the sealed transparent cover and the wire drawing wheel shaft is ensured by a mechanical sealing pair consisting of a static sealing ring arranged on the static ring and a dynamic sealing ring arranged on the dynamic ring, the static ring keeps the inward movement trend through a spring arranged between the static ring and the sealed transparent cover, so that the static sealing ring on the static ring is tightly attached to the dynamic sealing ring, the dynamic sealing ring which does rotary motion and the static sealing ring which is in a circumferential static state can not generate lubrication leakage, the sealing ring has ideal sealing effect, the static ring can be movably and axially supported on the sealed transparent cover in a sealing way through the sealing ring, the static ring can move inwards under the action of the spring to be tightly attached to the dynamic sealing ring so as to compensate the abrasion between the dynamic sealing ring and the static sealing ring, and the sealing between the static ring and the sealed transparent cover is also ensured; the whole sealing device consists of a movable ring and a static ring which are positioned in a bearing end cover, a sealed through cover only occupies a small axial space outside the bearing end cover, the structure is compact, the normal operation of a wire drawing wheel is not influenced by the increase of the deflection of the wire drawing wheel shaft due to the long overhang of the wire drawing wheel shaft, the operation of the wire drawing wheel shaft is balanced, the sealing effect of a sealing pair is better, and the sealing device can well adapt to the drawing requirement of large-size wires with large loads; the static ring fixedly connected with the guide pin can only axially shift relative to the sealing transparent cover but can not relatively rotate due to the guide pin, so that the sealing ring movably supported between the static ring on the sealing transparent cover and the sealing transparent cover works in a static sealing environment, and the sealing effect of the whole sealing device is further ensured.

And because the corresponding excircle of the ceramic sleeve inner hole and the wire drawing wheel body is respectively provided with the axial tooth socket and the axial convex tooth which are mutually inserted, the axial tooth socket and the axial convex tooth are uniformly distributed along the circumferential direction, the height A of the axial tooth socket and the axial convex tooth is 2-5 mm, the end surface of the ceramic sleeve corresponding to the adjacent clamping ring is respectively provided with the end surface tooth socket and the end surface convex tooth which are mutually inserted, the end surface of the flange edge and the corresponding ceramic sleeve and the end surface of the axial pressing ring and the corresponding ceramic sleeve are respectively provided with the end surface tooth socket and the end surface convex tooth which are mutually inserted, the height B of the end surface tooth socket and the end surface convex tooth is 1-3 mm, a structure similar to spline connection is formed between the inner hole of the ceramic sleeve and the corresponding excircle of the wire drawing wheel body, the connection is reliable and stable, the height of the axial tooth socket and the axial convex tooth of 2-5 mm can reduce the ceramic sleeve on the basis of ensuring the reliable, the cost is saved; the ceramic sleeve can be stably and reliably connected between the inner hole and the wire drawing wheel body, the two ends of the ceramic sleeve can be connected with the clamping ring, the flange edge on the wire drawing wheel body and the axial pressing ring in a clamping manner through the clamping teeth to form a multi-directional stable connection state, the inner hole and the two ends are uniformly stressed, so that the ceramic sleeve can keep smaller wall thickness, the material cost of the ceramic sleeve is reduced, the damage of the ceramic sleeve caused by overlarge local stress of the ceramic sleeve possibly caused by a fixed connection mode which can be realized only by a single connecting key in a common design concept is avoided, the service life of the ceramic sleeve is ensured, the integral scrapping of a common integral wire drawing wheel is avoided, the stable structure of the wire drawing wheel is ensured, the ceramic sleeve cannot skid, and the use requirement of drawing large-size wires with larger load is met.

The utility model discloses a preferred embodiment wire drawing wheel is epaxial to be linked firmly the rotating ring through key and for the axle retaining ring. By adopting the embodiment, the movable ring and the wire drawing wheel shaft can be reliably connected, and the axial positioning is realized by adopting the axial retainer ring, so that the structure is compact.

In another preferred embodiment of the present invention, the sealing ring is an O-ring. By adopting the embodiment, the O-shaped sealing ring has a simple structure and a good static sealing effect.

The utility model discloses a still another preferred embodiment be equipped with a plurality of spring holes on the sealed medial surface that passes through the lid, each spring hole is along circumference equipartition, each spring is located to the spring branch downthehole, the outside of quiet ring is equipped with the circular bead, and this circular bead passes through the sealing washer sealed the pegging graft in sealed hole that passes through the lid, and the quiet ring can follow axial activity ground through this circular bead and support on sealed passing through the lid. By adopting the embodiment, the plurality of springs are uniformly distributed along the circumferential direction, the balance of the axial pushing force of the static ring can be ensured, the movable support of the sealed through cover to the static ring is stable, the shoulder can be positioned at the same axial position with the springs, and the structure is compact.

The utility model discloses further preferred embodiment, the uide pin is the edging round pin, and this edging round pin is less than the diameter of uide pin at the radial thickness of quiet ring. By adopting the embodiment, the static ring and the sealed transparent cover can be ensured to be capable of flexibly axially moving and limiting circumferential rotation, the installation is convenient, and the requirement on manufacturing precision can be lower.

The utility model discloses another further preferred embodiment be equipped with the axial dogtooth on the pottery cover hole be equipped with on the corresponding excircle of wire drawing wheel body with the axial tooth's socket that the axial dogtooth pegs graft each other. By adopting the embodiment, the axial convex teeth are added in the inner hole of the ceramic sleeve, so that the ceramic sleeve can be reinforced under the condition that the ceramic sleeve keeps a thin-wall structure, and the strength of the ceramic sleeve is better.

The utility model discloses still further preferred embodiment, axial dogtooth and axial tooth's socket are provided with two to eight along the circumference equipartition. By adopting the embodiment, the requirements of the wire drawing wheel on the skid resistance and the connection of the ceramic sleeve can be met, and the inner hole of the ceramic sleeve is reasonable in structure.

The utility model discloses further preferred embodiment be equipped with the terminal surface dogtooth on the both ends terminal surface of ceramic sheathing be equipped with the terminal surface tooth's socket that inserts with terminal surface dogtooth looks card on the terminal surface of joint ring. By adopting the embodiment, the end face convex teeth are added at the end part of the ceramic sleeve, so that the phenomenon that the end face tooth socket is arranged at the end part of the ceramic sleeve to weaken the strength of the ceramic sleeve can be avoided, and the service life of the ceramic sleeve is ensured.

In another preferred embodiment of the present invention, the end face teeth and the end face tooth grooves are circumferentially and evenly distributed with six to twelve teeth. By adopting the embodiment, the end face of the ceramic sleeve is uniformly stressed.

In a further preferred embodiment of the present invention, end face tooth grooves for inserting end face convex teeth on the ceramic sleeve are provided on the end face of the flange opposite to the ceramic sleeve and on the end face of the axial pressing ring opposite to the ceramic sleeve. By adopting the embodiment, the plug-in connection with the end face convex teeth on the ceramic sleeve can be ensured.

Drawings

The powerful heavy-duty wire drawing machine of the present invention will be described in further detail with reference to the accompanying drawings and specific examples.

FIG. 1 is a schematic structural diagram of one embodiment of the heavy duty drawing machine of the present invention;

FIG. 2 is a cross-sectional view taken at location A-A of the structure shown in FIG. 1;

FIG. 3 is an enlarged partial view of portion I of the structure shown in FIG. 2;

FIG. 4 is an enlarged partial view of section II of the structure shown in FIG. 3;

FIG. 5 is an enlarged partial view of section III of the structure shown in FIG. 3;

FIG. 6 is a cross-sectional view taken at location B-B of the structure shown in FIG. 5;

FIG. 7 is a schematic view of the construction of the wire drawing wheel of the construction of FIG. 1;

FIG. 8 is a schematic view of the construction of the ceramic sheath of the construction of FIG. 7;

FIG. 9 is a side view of FIG. 8;

FIG. 10 is a schematic view of the snap ring of the structure of FIG. 7;

fig. 11 is a side view of fig. 10.

In the figure: 1-a transmission box body, 2-a wire drawing wheel bearing, 3-a bearing end cover, 4-a movable ring, 5-a spring, 6-a spring hole, 7-a sealing through cover, 8-a stationary ring, 9-a wire drawing wheel shaft, 10-a sealing ring, 11-a stationary sealing ring, 12-a movable sealing ring, 13-a guide pin hole, 14-a guide pin, 15-a wire drawing wheel mounting end cover, 20-a wire drawing wheel, 21-a flange edge, 22-a wire drawing wheel body, 23-a ceramic sleeve, 24-a wire drawing guide groove, 25-a clamping ring, 26-an axial tooth groove, 27-an axial convex tooth, 28-an end face tooth groove, 29-an end face convex tooth and 210-an axial pressing ring.

Detailed Description

In the powerful heavy-duty wire drawing machine shown in fig. 1 and 2, a transmission case 1 is a rectangular case member, a plurality of wire drawing wheel shafts 9 are rotatably supported on the transmission case 1 through wire drawing wheel bearings 2 installed in two side plates of the transmission case 1, the wire drawing wheel shafts 9 are arranged into an upper row and a lower row, the wire drawing wheel shafts 9 in the same row are mutually connected through gear transmission and driven by a driving motor to run, a lubricating device is arranged in the transmission case 1 to spray oil to lubricate each transmission gear and each wire drawing wheel bearing 2, and a wire drawing wheel 20 is fixedly connected to an overhanging shaft end of the wire drawing wheel shaft 9 through a wire drawing wheel mounting end cover 15.

Referring to fig. 3 and 4, a bearing end cover 3 is hermetically installed on one side wall of a transmission case 1 through a seal ring 10, the inner side of the bearing end cover 3 axially limits a wire drawing wheel bearing 2 through a spacer bush, a sealed through cover 7 is hermetically installed on the bearing end cover 3 through the seal ring 10, a wire drawing wheel shaft 9 extends out of the transmission case 1 through an inner hole of the sealed through cover 7, a static ring 8 is installed on the inner side of the sealed through cover 7, a static seal ring 11 is installed on the inner side end face of the static ring 8, a dynamic ring 4 is fixedly connected on the wire drawing wheel shaft 9 through a key and a shaft check ring, the shaft check ring is located at the inner side end of the dynamic ring 4 adjacent to the wire drawing bearing 2, the dynamic ring 4 is located between the wire drawing wheel bearing 2 and the static ring 8, the inner hole of the dynamic ring 4 is hermetically connected with the wire drawing wheel shaft 9 through the seal ring 10, a dynamic seal ring 12 matched with the static seal ring 11, a spring 5 is arranged between the static ring 8 and the sealing transparent cover 7 to ensure that the static sealing ring 11 is tightly attached to the dynamic sealing ring 12, the static ring 8 can be movably supported on the sealing transparent cover 7 in an axial direction in a sealing way through a sealing ring 10, as a preferred embodiment, the static ring 8 is sleeved on the wire drawing wheel shaft 9 in an empty way, a shoulder is arranged on the outer side of the static ring 8, the shoulder is inserted into the inner hole of the sealed through cover 7 in a sealing way through a sealing ring 10, the static ring 8 can be movably supported on the sealed through cover 7 along the axial direction through the shoulder, a plurality of spring holes 6 are arranged on the end surface of the inner side of the sealed transparent cover 7, each spring hole 6 is uniformly distributed along the circumferential direction, the number of the spring holes 6 can be generally 6-12, the springs 5 are respectively arranged in each spring hole 6, the springs 5 are helical compression springs, the stationary ring 8 is provided with a core column for mounting the spring 5, the core column is sleeved in an inner hole of the spring 5, and each sealing ring 10 is an O-shaped sealing ring.

Referring to fig. 3, 5 and 6, a guide pin hole 13 is formed in an end surface of the inner side of the seal through cover 7, a guide pin 14 is fixedly connected to the stationary ring 8, the guide pin 14 is movably inserted into the guide pin hole 13, one or two guide pin holes 13 and two corresponding guide pins 14 are provided, the two guide pin holes 13 and the corresponding guide pins 14 are circumferentially and symmetrically distributed, and as a preferred embodiment, as shown in fig. 6, the guide pins 14 are chamfered pins, and the thickness of the chamfered pins in the radial direction of the stationary ring 8 is smaller than the diameter of the guide pins 14.

Referring to fig. 7, the wire drawing wheel 20 comprises a wire drawing wheel body 22 and a ceramic sleeve 23 sleeved on the wire drawing wheel body 22, the wire drawing wheel body 22 is made of a metal material, a mounting hole for fixedly mounting the wire drawing wheel 20 on the wire drawing wheel shaft 9 is formed in the center of the wire drawing wheel body, a key groove is formed in the mounting hole, and the wire drawing wheel body 22 is fixedly connected with the wire drawing wheel shaft through a connecting key and a wire drawing wheel mounting end cover 15; axial tooth grooves 26 and axial convex teeth 27 which are mutually inserted are respectively arranged on corresponding outer circles of an inner hole of the ceramic sleeve 23 and the wire drawing wheel body 22, the axial tooth grooves 26 and the axial convex teeth 27 are uniformly distributed along the circumferential direction, the height A of the axial tooth grooves 26 and the axial convex teeth 27 is 2-5 mm, the ceramic sleeve 23 is fixedly connected to the wire drawing wheel body 22 through the axial convex teeth 27 and the axial tooth grooves 26 in a sleeved mode, as a preferred embodiment, referring to fig. 8 and 9, the axial convex teeth 27 are arranged on the inner hole of the ceramic sleeve 23, two to eight axial convex teeth 27 and axial tooth grooves 26 are uniformly distributed along the circumferential direction, eight axial tooth grooves 26 are shown in the figure, and the corresponding outer circle of the wire drawing wheel body 22 is provided with the axial tooth grooves 26 which are mutually.

The outer ring of the ceramic sleeve 23 is provided with a wire drawing guide groove 24, the outer ring of each ceramic sleeve 23 is provided with two circumferential wire drawing guide grooves 24, a clamping ring 25 is arranged between two adjacent ceramic sleeves 23, the clamping ring 25 is made of metal material, end face tooth grooves 28 and end face convex teeth 29 which are mutually clamped are respectively arranged on the end faces of the ceramic sleeves 23 corresponding to the adjacent clamping rings 25, as a preferred embodiment, referring to fig. 8, 9, 10 and 11, the end face convex teeth 29 are arranged on the end faces of the ceramic sleeves 23, the end face tooth grooves 28 which are mutually clamped with the end face convex teeth 29 are arranged on the end faces of the clamping ring 25, six to twelve end face convex teeth 29 and end face tooth grooves 28 are uniformly distributed along the circumferential direction, eight of the tooth grooves are shown in the figure; like the ceramic sleeve 23, the inner hole of the snap ring 25 is also provided with axial convex teeth 27, and the snap ring 25 is fixedly sleeved on the wire drawing wheel body 22 through the axial convex teeth 27 in the inner hole and the axial tooth grooves 26 on the wire drawing wheel body 22.

The inner side end of the wire drawing wheel body 22 is inserted into the bearing end cover 3 after being installed, so that the wire drawn can be prevented from being embedded into an axial gap between the wire drawing wheel 20 and the bearing end cover 3 in the working process, the end of the wire drawing wheel body 22 is provided with a flange 21 which is in contact with the ceramic sleeve 23, an axial pressing ring 210 is mounted on the other end of the wire drawing wheel body 22, end face tooth grooves 28 and end face convex teeth 29 which are mutually inserted are respectively arranged on the end faces of the flange edge 21 and the corresponding ceramic sleeve 23 and the end faces of the axial pressing ring 210 and the corresponding ceramic sleeve 23, and as a preferred embodiment, end face tooth grooves 28 inserted with the end face convex teeth 29 on the ceramic sleeve 23 are formed in the end face, opposite to the ceramic sleeve 23, of the flange edge 21 and the end face, opposite to the ceramic sleeve 23, of the axial pressing ring 210, and the ceramic sleeve 23 and the clamping ring 25 are fixedly clamped with the flange edge 21 under the axial pressure of bolts, axially arranged on the axial pressing ring 210 and used for connecting the axial pressing ring 210 and the wire drawing wheel body 22.

The height B of the end face tooth grooves 28 and the end face convex teeth 29 is 1-3 mm.

The above description has been presented only for the purpose of illustrating certain preferred embodiments of the invention, and it is not to be taken as a limitation on the invention, as many modifications and variations are possible. The spring 5 may be a disc spring instead of a coil compression spring as described above; a plurality of spring holes 6 are not uniformly distributed on the end surface of the inner side of the sealed through cover 7 along the circumferential direction, but a ring groove concentric with the sealed through cover 7 is arranged on the end surface of the inner side of the sealed through cover 7, and the springs 5 are arranged in the ring groove; instead of being arranged on the ceramic sleeve 23 and the snap ring 25, the axial teeth 27 may be arranged on the wire drawing wheel body 22, and correspondingly the axial teeth 26 are not arranged on the wire drawing wheel body 22, but on the ceramic sleeve 23 and the snap ring 25.

Therefore, any improvement and changes made on the basis of the basic principle of the present invention should be considered as falling within the protection scope of the present invention.

Claims

1. The utility model provides a powerful heavy load wire drawing machine, includes transmission case (1), rotates a plurality of wire drawing wheel axles (9) of supporting on transmission case (1) and links firmly wire drawing wheel (20) on the overhanging end of wire drawing wheel axle (9) through wire drawing wheel bearing (2), wire drawing wheel (20) are including wire drawing wheel body (22) and ceramic cover (23) of suit on wire drawing wheel body (22), are equipped with wire drawing guide slot (24) along circumference in ceramic cover (23) outer lane, are equipped with joint ring (25) between adjacent two ceramic covers (23), are equipped with flange limit (21) that contact with ceramic cover (23) in the one end of wire drawing wheel body (22), install axial clamping ring (210) at the other end of wire drawing wheel body (22), its characterized in that: a bearing end cover (3) is hermetically installed on the transmission case body (1), a sealed transparent cover (7) is hermetically installed on the bearing end cover (3), a static ring (8) is installed on the inner side of the sealed transparent cover (7), a spring (5) is arranged between the static ring (8) and the sealed transparent cover (7), the static ring (8) can be movably and hermetically supported on the sealed transparent cover (7) along the axial direction through a sealing ring (10), a static sealing ring (11) is installed on the inner end face of the static ring (8), a dynamic ring (4) is fixedly connected on the wire drawing wheel shaft (9), the dynamic ring (4) is positioned between the wire drawing wheel bearing (2) and the static ring (8), the inner hole of the dynamic ring (4) is hermetically connected with the wire drawing wheel shaft (9) through the sealing ring (10), a dynamic sealing ring (12) matched with the static sealing ring (11) is installed on the outer end face of the dynamic ring (4), a guide pin hole (13) is formed in the sealed transparent cover (7), the stationary ring (8) is fixedly connected with a guide pin (14), and the guide pin (14) is movably inserted into the guide pin hole (13); axial tooth grooves (26) and axial convex teeth (27) which are mutually inserted are respectively arranged on corresponding outer circles of an inner hole of the ceramic sleeve (23) and the wire drawing wheel body (22), the axial tooth grooves (26) and the axial convex teeth (27) are uniformly distributed along the circumferential direction, the height A of the axial tooth grooves (26) and the axial convex teeth (27) is 2-5 mm, end face tooth grooves (28) and end face convex teeth (29) which are mutually inserted are respectively arranged on corresponding end faces of the ceramic sleeve (23) and an adjacent clamping ring (25), end face tooth grooves (28) and end face convex teeth (29) which are mutually inserted are also respectively arranged on the end faces of the flange edge (21) and the corresponding ceramic sleeve (23) and the end faces of the axial pressing ring (210) and the corresponding ceramic sleeve (23), and the height B of the end face tooth grooves (28) and the end face convex teeth (29) is 1-3 mm.

2. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: and a movable ring (4) is fixedly connected to the wire drawing wheel shaft (9) through a key and a shaft retainer ring.

3. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: the sealing ring (10) is an O-shaped sealing ring.

4. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: the inner side end face of the sealed transparent cover (7) is provided with a plurality of spring holes (6), the spring holes (6) are uniformly distributed along the circumferential direction, the springs (5) are respectively arranged in the spring holes (6), the outer side of the static ring (8) is provided with a shoulder, the shoulder is hermetically inserted into an inner hole of the sealed transparent cover (7) through a sealing ring (10), and the static ring (8) can be movably supported on the sealed transparent cover (7) along the axial direction through the shoulder.

5. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: the guide pin (14) is a chamfered pin, and the thickness of the chamfered pin in the radial direction of the stationary ring (8) is smaller than the diameter of the guide pin (14).

6. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: the inner hole of the ceramic sleeve (23) is provided with axial convex teeth (27), and the corresponding excircle of the wire drawing wheel body (22) is provided with axial tooth grooves (26) which are mutually inserted with the axial convex teeth (27).

7. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: two to eight axial convex teeth (27) and axial tooth grooves (26) are uniformly distributed along the circumferential direction.

8. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: end face convex teeth (29) are arranged on the end faces of the two ends of the ceramic sleeve (23), and end face tooth grooves (28) which are inserted with the end face convex teeth (29) in a clamped mode are arranged on the end face of the clamping ring (25).

9. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: six to twelve end face convex teeth (29) and end face tooth grooves (28) are uniformly distributed along the circumferential direction.

10. The powerful heavy-duty wire drawing machine according to claim 1, characterized in that: end face tooth grooves (28) inserted with the end face convex teeth (29) on the ceramic sleeve (23) are formed in the end face of the flange edge (21) opposite to the ceramic sleeve (23) and the end face of the axial pressing ring (210) opposite to the ceramic sleeve (23).