CN213436332U

CN213436332U - Hydraulic spring chuck for finished pipe of cold pilger mill

Info

Publication number: CN213436332U
Application number: CN202021001131.9U
Authority: CN
Inventors: 尹延卫; 张郭仪; 卢君卿; 葛宁
Original assignee: Jiangsu Yongteli Machinery Co ltd
Current assignee: Jiangsu Yongteli Machinery Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-06-15
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a cold pilger mill finished product pipe hydraulic spring dop, the power distribution box comprises a box body, the hollow shaft is installed through bearing one in the top in the box, and both ends are located box both sides top respectively around the hollow shaft, the welding of box top has the bottom plate, and the welding of bottom plate top has a support one, the front end of hollow shaft is provided with dop portion, dop portion includes a sliding sleeve, the sliding sleeve suit in the hollow shaft front end is peripheral, the sliding sleeve inboard is equipped with the jack catch along its circumference cover, and the jack catch cartridge in the hollow shaft, the peripheral cover of sliding sleeve front end is equipped with bearing two, and the sliding sleeve front end installs ring shape top cap through fastening screw, form ring shape spout between ring shape top cap and. The utility model discloses finished product pipe hydraulic spring dop in the cold pilger mill can accomplish the slight centre gripping operation of finished product pipe in the hollow shaft to finished product pipe revolves and makes things convenient for the quick pipe operation of finished product pipe in the auxiliary hollow shaft, is fit for being extensively promoted and used.

Description

Hydraulic spring chuck for finished pipe of cold pilger mill

Technical Field

The utility model relates to a rolling mill equipment manufacturing technical field, in particular to cold pilger mill finished product pipe hydraulic spring dop.

Background

When a rolling mill is used for producing rolled pipes, the finished pipes can have deflection conditions such as sagging and the like when being rolled and fed, so that the outer diameter tolerance and the wall thickness tolerance of the finished pipes deviate from the rolling requirements, the rolling conditions of the finished pipes are unsatisfactory, and the rolling efficiency is low and cannot meet the required requirements. Therefore, a clamping mechanism which can slightly clamp and support the conveyed finished pipes and assist the pipe blank to rotate is urgently needed in the conveying process of the finished pipes so as to avoid large precision deviation of the finished pipes and finally ensure that the finished pipes can normally pass through the pipes and rotate. To solve the above problems, we propose a hydraulic spring clip for a finished pipe of a cold pilger mill.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cold pilger mill finished product pipe hydraulic spring dop can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hydraulic spring chuck for finished pipes of a cold pilger mill comprises a box body, wherein a hollow shaft is arranged at the top end in the box body through a bearing I, the front end and the rear end of the hollow shaft are respectively positioned at the top ends of the two sides of the box body, a bottom plate is welded at the top of the box body, the top of the bottom plate is welded with a first support, the front end of the hollow shaft is provided with a clamping head part, the clamping head part comprises a sliding sleeve, the sliding sleeve is sleeved on the periphery of the front end of the hollow shaft, clamping jaws are sleeved on the inner side of the sliding sleeve along the circumference of the sliding sleeve, the claw is inserted in the hollow shaft, a second bearing is sleeved on the periphery of the front end of the sliding sleeve, a circular top cover is arranged at the front end of the sliding sleeve through a fastening screw, a circular chute is formed between the circular top cover and the second bearing, and both sides all sliding connection have the slider in the ring shape spout, two the slider is respectively through dead lever fixedly connected with swing arm, two the swing arm is through a actuating mechanism drive swing.

Preferably, the driving mechanism comprises a hydraulic cylinder, the hydraulic cylinder is installed on the first support through a rotating sleeve, a piston rod at the front end of the hydraulic cylinder is connected with a pull rod, the pull rod is rotatably connected with the swing arm through a shaft rod, a blocking sleeve is welded on the periphery of the tail end of the pull rod, and a high-strength spring is sleeved on the periphery of the front end of the pull rod.

Preferably, the top of the bottom plate is further welded with a second support, the front end of the second support is rotatably connected with the center of the swing arm through a rotating shaft, and the top of the second support is further welded with a fixed vertical block.

Preferably, the front end of the high-strength spring abuts against the fixed vertical block, and the rear end of the high-strength spring abuts against the blocking sleeve.

Preferably, a first gear is further sleeved on the periphery of the hollow shaft and located between the first bearings, and a spacer sleeve is further sleeved between the first gear and the first bearings.

Preferably, a second gear is installed at the bottom of the first gear through a shaft sleeve and a shaft rod, a third gear is installed at the bottom of the second gear through a shaft sleeve and a transmission shaft, the first gear, the second gear and the third gear are in meshed connection, and one end of the transmission shaft is located at the bottom of one side of the box body.

Preferably, the top of one side of the box body is fixedly provided with a first transparent cover, the first transparent cover is positioned on the periphery of the hollow shaft, the bottom of one side of the box body is fixedly provided with a second transparent cover, and the second transparent cover is positioned on the periphery of the transmission shaft.

Preferably, the number of the jaws is 3 in particular.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses, through set up by the sliding sleeve in hollow shaft front end periphery, the jack catch, the dop portion that circle ring shape top cap and bearing two combination formed, and supporting set up the actuating mechanism who is connected with the pull rod, still through the swing arm linkage effect between the two, thereby get into the back from the hollow shaft rear end as the production tube, actuating mechanism (pneumatic cylinder) can promote the pull rod to the front end, the swing arm swing can be promoted to the pull rod that moves forward, the swing arm lower extreme backward movement promotes the sliding sleeve and presses and hold its inside jack catch, and then the centre gripping of production tube in the hollow shaft is closed to 3 downlink jack catches and is accomplished and support the operation.

2. The utility model discloses, through set up at the pull rod front end and two welded fixed upright pieces of support, and suit high strength spring on the pull rod, thereby can promote the pull rod to the front end when actuating mechanism (pneumatic cylinder), high strength spring promotes the pull rod stop motion because of self elasticity, make both dynamics (thrust and high strength spring thrust) be in static equilibrium state, and then swing arm lower extreme swing distance is certain, and the sliding sleeve backward pressure holds the displacement of 3 jack catchs certain, the centre gripping dynamics that final 3 jack catchs inwards closed up finished product pipe in the hollow shaft is more slight, present a "the state that seems to press from both sides non-clamp", with finished product pipe gyration and the quick pipe passing operation in the auxiliary hollow shaft.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the connecting schematic diagram of the swing arm and the sliding sleeve of the utility model.

Fig. 3 is a schematic view of the hollow shaft structure of the present invention.

Fig. 4 is a schematic view of the sliding sleeve structure of the present invention.

Fig. 5 is a side view of the sliding sleeve of the present invention.

Fig. 6 is a side view of the jaw of the present invention.

Fig. 7 is a schematic view of the structure of the hollow shaft inner clamping claw of the present invention.

In the figure: 1. a pull rod; 2. a high-strength spring; 3. a hydraulic cylinder; 4. rotating the sleeve; 5. a first support; 6. a base plate; 7. a transparent cover I; 8. a spacer sleeve; 9. a first bearing; 10. a hollow shaft; 11. a second gear; 12. swinging arms; 13. a slider; 14. fixing the vertical block; 15. a second transparent cover; 16. a drive shaft; 17. a box body; 18. a third gear; 19. a first gear; 20. a claw; 21. a sliding sleeve; 22. a second bearing; 23. a circular top cover; 24. a second support; 25. a rotating shaft.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to the orientation in the drawings, and the terms "inner" and "outer" refer to the orientation toward or away from the geometric center of a particular element, respectively.

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. 1-7, a hydraulic spring chuck for finished pipes of a cold pilger mill comprises a box body 17, a hollow shaft 10 is mounted at the top end of the box body 17 through a bearing one 9, the front end and the rear end of the hollow shaft 10 are respectively located at the top ends of two sides of the box body 17, a bottom plate 6 is welded at the top of the box body 17, a support seat one 5 is welded at the top of the bottom plate 6, a chuck part is arranged at the front end of the hollow shaft 10, the chuck part comprises a sliding sleeve 21, the sliding sleeve 21 is sleeved at the periphery of the front end of the hollow shaft 10, a claw 20 is sleeved at the inner side of the sliding sleeve 21 along the circumference of the sliding sleeve 21, the claw 20 is inserted into the hollow shaft 10, a bearing two 22 is sleeved at the periphery of the front end of the sliding sleeve 21, a circular top cover 23 is mounted at the front end of the sliding sleeve 21, the two sliding blocks 13 are fixedly connected with swing arms 12 through fixing rods respectively, and the two swing arms 12 are driven to swing through a driving mechanism.

Referring to fig. 1, in order to drive the jaws 20 in the hollow shaft 10 to slide up and down to complete the clamping operation of the finished product pipe in the hollow shaft 10, the driving mechanism includes a hydraulic cylinder 3, the hydraulic cylinder 3 is mounted on the first support 5 through a rotating sleeve 4, a piston rod at the front end of the hydraulic cylinder 3 is connected with a pull rod 1, the pull rod 1 is rotatably connected with the swing arm 12 through a shaft rod, a blocking sleeve is welded on the periphery of the tail end of the pull rod 1, and a high-strength spring 2 is sleeved on the periphery of the front end of the pull rod 1.

Referring to fig. 1, in order to facilitate the driving mechanism to drive the swing arm 12 to perform a lever swing motion, a second support 24 is welded on the top of the bottom plate 6, the front end of the second support 24 is rotatably connected with the center of the swing arm 12 through a rotating shaft 25, and a fixed vertical block 14 is welded on the top of the second support 24.

Referring to fig. 1, in order to facilitate the reverse buffering of the leftward driving force of the driving mechanism to achieve a light clamping operation of the finished pipe in the hollow shaft 10, the front end of the high-strength spring 2 abuts against the fixed vertical block 14, and the rear end of the high-strength spring 2 abuts against the stop sleeve.

Referring to fig. 1, in order to facilitate the driving component in the box 17 to drive the hollow shaft 10 to rotate, a first gear 19 is further sleeved on the periphery of the hollow shaft 10, the first gear 19 is located between the first bearings 9, and a spacer 8 is further sleeved between the first gear 19 and the first bearings 9.

Referring to fig. 1, in order to facilitate the transmission shaft 16 to drive the hollow shaft 10 to rotate in the box 17, the bottom of the first gear 19 is provided with the second gear 11 through a shaft sleeve and a shaft rod, the bottom of the second gear 11 is provided with the third gear 18 through a shaft sleeve and the transmission shaft 16, the first gear 19, the second gear 11 and the third gear 18 are in meshing connection, and one end of the transmission shaft 16 is located at the bottom of one side of the box 17.

Referring to fig. 1, in order to facilitate sealing of the transmission assembly in the box 17, a transparent cover one 7 is further fixedly mounted at the top of one side of the box 17, the transparent cover one 7 is located at the periphery of the hollow shaft 10, a transparent cover two 15 is further fixedly mounted at the bottom of one side of the box 17, and the transparent cover two 15 is located at the periphery of the transmission shaft 16.

Referring to fig. 6 and 7, in order to ensure the clamping effect on the finished tube inside the hollow shaft 10, the number of the clamping jaws 20 is 3.

It should be noted that, the utility model relates to a cold pilger mill finished product pipe hydraulic spring dop, during operation, personnel install the device in cold pilger mill finished product pipe exit in advance, and connect the oil pipe of actuating mechanism (pneumatic cylinder 3) with the external oil pump; when a rolling mill conveys finished pipes, the finished pipes can enter from the rear end of the hollow shaft 10, people start the hydraulic cylinder 3 to push the pull rod 1 to the front end, the pull rod 1 moving forwards can push the swing arm 12 to swing, the lower end of the swing arm 12 moves backwards to push the sliding sleeve 21 to press the clamping jaws 20 in the swing arm, and then the descending 3 clamping jaws 20 are closed to finish the clamping and supporting operation of the finished pipes in the hollow shaft 10; when the hydraulic cylinder 3 pushes the pull rod 1 forwards to a certain distance, the high-strength spring 2 pushes the pull rod 1 to stop moving due to self elasticity, the force (the thrust and the reverse thrust of the high-strength spring 2) of the high-strength spring is enabled to be in a static balance state, the swing distance of the lower end of the swing arm 12 is further certain, the sliding sleeve 21 presses and holds 3 clamping jaws 20 backwards to move certain, finally, the clamping force of the finished pipes in the hollow shaft 10 caused by inward closing of the 3 clamping jaws 20 is slight, a 'clamping-like and non-clamping' state is presented, and the finished pipes in the hollow shaft 10 are assisted to rotate and quickly pass through the pipe operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cold pilger mill finished product pipe hydraulic spring dop, includes box (17), fixed upright piece (14), transmission shaft (16) and high strength spring (2), its characterized in that: the hollow shaft (10) is installed at the top end in the box body (17) through a bearing I (9), the front end and the rear end of the hollow shaft (10) are respectively located at the top ends of the two sides of the box body (17), a bottom plate (6) is welded at the top of the box body (17), a support I (5) is welded at the top of the bottom plate (6), a clamping head portion is arranged at the front end of the hollow shaft (10) and comprises a sliding sleeve (21), the sliding sleeve (21) is sleeved on the periphery of the front end of the hollow shaft (10), clamping claws (20) are sleeved on the inner side of the sliding sleeve (21) along the circumference of the sliding sleeve, the clamping claws (20) are inserted into the hollow shaft (10), a bearing II (22) is sleeved on the periphery of the front end of the sliding sleeve (21), a circular ring-shaped top cover (23) is installed at the front end of the, and both sides all sliding connection have slider (13) in the ring shape spout, two slider (13) are respectively through dead lever fixedly connected with swing arm (12), two swing arm (12) are through a actuating mechanism drive and are swayd.

2. The hydraulic spring clip of a cold pilger mill finished pipe according to claim 1, characterized in that: the driving mechanism comprises a hydraulic cylinder (3), the hydraulic cylinder (3) is installed on the support (5) through a rotating sleeve (4), a pull rod (1) is connected with a front end piston rod of the hydraulic cylinder (3), the pull rod (1) is rotatably connected with the swing arm (12) through a shaft rod, a blocking sleeve is welded on the periphery of the tail end of the pull rod (1), and a high-strength spring (2) is sleeved on the periphery of the front end of the pull rod (1).

3. The hydraulic spring clip of a cold pilger mill finished pipe according to claim 1, characterized in that: the top of the base plate (6) is further welded with a second support (24), the front end of the second support (24) is rotatably connected with the center of the swing arm (12) through a rotating shaft (25), and the top of the second support (24) is further welded with a fixed vertical block (14).

4. The hydraulic spring clip of a cold pilger mill finished pipe according to claim 2, characterized in that: the front end of the high-strength spring (2) is abutted against the fixed vertical block (14), and the rear end of the high-strength spring (2) is abutted against the blocking sleeve.

5. The hydraulic spring clip of a cold pilger mill finished pipe according to claim 1, characterized in that: the hollow shaft (10) is sleeved with a first gear (19), the first gear (19) is located between the first bearings (9), and a spacer bush (8) is sleeved between the first gear (19) and the first bearings (9).

6. The hydraulic spring clip of a cold pilger mill finished pipe according to claim 5, wherein: the bottom of the first gear (19) is provided with a second gear (11) through a shaft sleeve and a shaft rod, the bottom of the second gear (11) is provided with a third gear (18) through a shaft sleeve and a transmission shaft (16), the first gear (19), the second gear (11) and the third gear (18) are in meshed connection, and one end of the transmission shaft (16) is located at the bottom of one side of the box body (17).

7. The hydraulic spring clip of a cold pilger mill finished pipe according to claim 1, characterized in that: the top of one side of the box body (17) is fixedly provided with a transparent cover I (7), the transparent cover I (7) is located on the periphery of the hollow shaft (10), the bottom of one side of the box body (17) is fixedly provided with a transparent cover II (15), and the transparent cover II (15) is located on the periphery of the transmission shaft (16).