CN215053009U

CN215053009U - Leveling device and pipe twisting machine with same

Info

Publication number: CN215053009U
Application number: CN202120764975.7U
Authority: CN
Inventors: 马帅; 王浩; 张�杰
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-07
Anticipated expiration: 2031-04-14

Abstract

The utility model provides a levelling device and have this levelling device's pipe rubbing machine belongs to and digs boring equipment technical field, and wherein, levelling device includes: the device comprises a centering mechanism, a swing frame and a leveling oil cylinder, wherein the front end of the leveling oil cylinder is connected below a front connecting rod of the centering mechanism through a first horizontal pin shaft, and the rear end of the leveling oil cylinder is connected to a base in a swinging manner; the utility model discloses a levelling device is connected the both ends of centering mechanism through the cross axle respectively, at the in-process of rubbing with the hands pipe work, and centering mechanism can carry out the horizontal hunting along with main chuck to still be connected with the leveling cylinder on centering mechanism, can carry out the leveling to the levelness of main chuck through this leveling cylinder, with the straightness that hangs down of guaranteeing to rub with the hands pipe.

Description

Leveling device and pipe twisting machine with same

Technical Field

The utility model relates to a dig drilling equipment technical field, concretely relates to levelling device and have this levelling device's pipe rubbing machine.

Background

The pipe twisting machine is piling mechanical equipment which adopts a full hydraulic oil cylinder to drive a large-diameter (1000-2500 mm) sleeve to perform small-angle reciprocating shaking, and has the functions of pressing and pulling. In the working process of the pipe twisting machine, in order to balance the transverse force of the pipe twisting oil cylinders on the main pin shaft, a centering mechanism must be added between the two pipe twisting oil cylinders.

For example, chinese patent document CN102434118A discloses a centering mechanism for a tubular drilling machine, in which the front part of a connecting rod is rotatably connected with the rear part of the connecting rod, and the centering mechanism does not generate an excessive degree of freedom and can bear a large load when a main chuck normally operates.

However, in the above-described solutions, only the centering mechanism is used to connect the main chuck, and the main chuck inevitably becomes skewed during the process of pushing and pulling the ferrule, and the above-described solutions cannot solve this problem.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the present invention lies in overcoming the defect that the main chuck of the tube rolling machine in the prior art cannot perform the adjustment of the parallelism, thereby providing a leveling device and a tube rolling machine having the same.

In order to solve the technical problem, the utility model provides a leveling device, include:

the centering mechanism is provided with a front connecting rod and a rear connecting rod, the front connecting rod and the rear connecting rod are connected in an axial rotatable mode, and the front end of the front connecting rod is connected with a main chuck for twisting the pipe through a first cross shaft;

the swinging frame is connected to the base in a vertically swinging mode and is connected with the rear end of a rear connecting rod of the centering mechanism through a second cross shaft;

and the front end of the leveling oil cylinder is connected below a front connecting rod of the centering mechanism through a first horizontal pin shaft, and the rear end of the leveling oil cylinder is connected on the base in a swinging manner.

Optionally, the lower end of the front connecting rod of the centering mechanism is provided with a lower engaging lug extending downwards, and the leveling cylinder is rotatably connected with the lower engaging lug through a first horizontal pin shaft.

Optionally, the lower engaging lug is located at a junction of a front connecting rod and a rear connecting rod of the centering mechanism.

Optionally, the first cross includes: the first horizontal through hole and the first vertical through hole are arranged on the first shaft bracket at intervals, the first horizontal through hole is used for being connected with the front end of the front connecting rod through a second horizontal pin shaft, and the first vertical through hole is used for being connected with the main chuck through a first vertical pin shaft.

Optionally, the second cross-axis comprises: the second shaft frame is provided with second horizontal through holes and second vertical through holes which are arranged at intervals, the second horizontal through holes are used for being connected with the rear end of the rear connecting rod through a third horizontal pin shaft, and the second vertical through holes are used for being connected with the base through second vertical pin shafts.

Optionally, the rear end of the leveling cylinder is connected to the base through a universal shaft.

Optionally, the leveling cylinder is controlled by a solenoid valve having at least one oil passing position that allows the leveling cylinder to remain freely telescopic.

Optionally, the front connecting rod has an axial through hole, and after the rear end of the rear connecting rod passes through the axial through hole, the front end of the rear connecting rod is clamped at the end of the axial through hole.

Optionally, the outer wall of the axial through hole of the front connecting rod is provided with at least one oil filling hole.

The utility model also provides a pipe rubbing machine, include: the leveling device of any one of the above aspects.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a levelling device connects the both ends of centering mechanism through the cross axle respectively, at the in-process of rubbing with the hands pipe work, centering mechanism can carry out the horizontal hunting along with main chuck to still be connected with the leveling hydro-cylinder on centering mechanism, can carry out the leveling to the levelness of main chuck through this leveling hydro-cylinder, with the straightness that hangs down of guaranteeing to rub with the hands pipe.

2. The utility model provides a levelling device, the rear end of centering mechanism is connected with the swing span of luffing motion, through the luffing motion of this swing span, can make centering mechanism when following main chuck and carry out the horizontal hunting, and centering mechanism can carry out the removal of certain distance towards main chuck to needn't set up the axial sliding structure, avoided because the problem that the centering structure that the axial sliding mechanism card stopper leads to warp.

3. The utility model provides a pipe rubbing machine can carry out real-time adjustment to the levelness of main chuck in the pipe rubbing work process through levelling device to improve the straightness that hangs down of pipe rubbing, guarantee work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a pipe rolling machine according to an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is an enlarged view of the area a in fig. 3.

Fig. 5 is a front view of a centering mechanism of a leveling device according to an embodiment of the present invention.

Description of reference numerals:

1. a chassis; 2. a lift cylinder; 3. a main chuck; 4. a base; 5. a pipe twisting oil cylinder; 6. a horizontal axis; 7. a vertical axis; 8. tightly holding the oil cylinder; 9. a swing frame; 10. a centering mechanism; 11. a leveling cylinder; 12. a front connecting rod; 13. a rear connecting rod; 14. a first cross-shaft; 15. a first pedestal; 16. a second horizontal pin shaft; 17. a first vertical pin; 18. a second cross-shaped shaft; 19. a second shaft frame; 20. a third horizontal pin shaft; 21. a second vertical pin; 22. a first horizontal pin shaft; 23. a lower engaging lug; 24. an oil filling hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The embodiment provides a pipe twisting machine, as shown in fig. 1, including: chassis 1, be connected with main chuck 3 through lift cylinder 2 on chassis 1, main chuck 3 is used for rubbing the pipe with the hands to the sleeve pipe, lift cylinder 2 has two that set up at main chuck 3 bilateral symmetry, through two lift cylinder 2 is used for going up and down main chuck 3 to the realization is impressed or is pulled out the work to the sleeve pipe, and for the swing when rubbing the pipe with the hands of cooperation main chuck 3, lift cylinder 2's upper and lower both ends all carry out articulated connection through the round pin axle, and when rubbing the pipe during operation, can be with lift cylinder 2 adjustment for the logical oily state that can freely stretch out and draw back, thereby guarantee that lift cylinder 2 can not receive too big stress and damage.

As shown in fig. 1 and 2, a base 4 is further connected to the chassis 1 at the rear end of the main chuck 3, a tube twisting cylinder 5 (not shown in fig. 1, but shown in fig. 2) is connected to the base 4, and the main chuck 3 is driven by the tube twisting cylinder 5 to perform left and right tube twisting operations. It should be noted that, in fig. 1, the centering mechanism 10 is shown for clarity, so that the pipe rolling cylinder 5 is omitted, but the horizontal shaft 6 on the main chuck 3 for mounting the pipe rolling cylinder 5 can be seen, the other end of the pipe rolling cylinder 5 is connected with the swing frame 9 on the base 4, and the vertical shaft 7 on the swing frame 9 for connecting the pipe rolling cylinder 5 can be seen in fig. 1. As shown in fig. 1 and 2, the two rubbing tube oil cylinders 5 are bilaterally symmetrical, one end of each rubbing tube oil cylinder 5 is connected with the main chuck 3 through a horizontal shaft 6, and the other end of each rubbing tube oil cylinder 5 is connected with the swing frame 9 through a vertical shaft 7. Wherein, the swing frame 9 can be connected on the base 4 in a way of swinging up and down. When the device works, the pipe twisting oil cylinder 5 drives the main chuck 3 through the matching of the horizontal shaft 6, the vertical shaft 7 and the swing frame 9.

As shown in fig. 1, the front end of the main chuck 3 is further connected with a holding cylinder 8, and the holding cylinder 8 is used for changing the diameter of the inner ring of the main chuck 3, so that the main chuck 3 can effectively hold the sleeve, and the sleeve can be conveniently twisted by the main chuck 3. In addition, as a preferred embodiment, a structure for increasing the friction force with the outer wall of the sleeve, such as a tooth-shaped rubber sleeve, or an anti-slip pattern, may be further provided on the inner ring of the main chuck 3.

As shown in fig. 1, a leveling device is connected between the base 4 and the main chuck 3, and specifically, the leveling device includes: the centering mechanism 10, the swing frame 9 and the leveling cylinder 11 are used for centering the main chuck 3 and leveling the levelness during working through the leveling device.

As shown in fig. 5, the centering mechanism 10 in the leveling device has a front connecting rod 12 and a rear connecting rod 13, the front connecting rod 12 and the rear connecting rod 13 are connected in an axially rotatable manner, specifically, as shown in fig. 3, the front connecting rod 12 has an axial through hole, the rear end of the rear connecting rod 13 passes through the axial through hole, the front end of the rear connecting rod 13 is clamped at the end of the axial through hole, and then the front connecting rod 12 is connected with the main chuck 3, and the rear connecting rod 13 is axially rotatable on the front connecting rod 12, so that when the swing frame 9 swings up and down, the torsion between the front connecting rod 12 and the rear connecting rod 13 is conveniently released, and the centering mechanism 10 is not twisted and bent.

As shown in fig. 1 and 4, the front end of the front connecting rod 12 is connected to the main chuck 3 for twisting pipe by a first cross 14, and the rear end of the rear connecting rod 13 is connected to the swing frame 9 by a second cross 18.

Specifically, as shown in fig. 4, the first cross 14 includes: the first horizontal through hole and the first vertical through hole that have the interval to set up on the first shaft frame 15, first horizontal through hole be used for through second horizontal pin axle 16 with the front end of preceding connecting rod 12 is connected, first vertical through hole be used for through first vertical pin axle 17 with main chuck 3 is connected. The second cross-shaft 18 includes: and a second shaft frame 19, wherein a second horizontal through hole and a second vertical through hole are formed in the second shaft frame 19 at intervals, the second horizontal through hole is used for being connected with the rear end of the rear connecting rod 13 through a third horizontal pin shaft 20, and the second vertical through hole is used for being connected with the base 4 through a second vertical pin shaft 21.

As shown in fig. 3, 4 and 5, the front end of the leveling cylinder 11 is connected below the front connecting rod 12 of the centering mechanism 10 by a first horizontal pin 22, and the rear end of the leveling cylinder 11 is swingably connected to the base 4. Specifically, the lower end of the front connecting rod 12 of the centering mechanism 10 is provided with a lower connecting lug 23 extending downwards, and the leveling cylinder 11 is rotatably connected with the lower connecting lug 23 through a first horizontal pin 22; the rear end of the leveling oil cylinder 11 can be connected to the base 4 through a universal shaft, and the up-and-down and left-and-right swinging of the leveling oil cylinder 11 can be realized through the universal shaft.

According to the leveling device provided by the embodiment, two ends of the centering mechanism 10 are respectively connected through a cross shaft, in the pipe twisting work process, the centering mechanism 10 can swing left and right along with the main chuck 3, the centering mechanism 10 is further connected with the leveling oil cylinder 11, and the levelness of the main chuck 3 can be leveled through the leveling oil cylinder 11 so as to ensure the verticality of the pipe twisting. The rear end of the centering mechanism 10 is connected with a swing frame 9 capable of swinging up and down, and the centering mechanism 10 can move towards the main chuck 3 for a certain distance when swinging left and right along with the main chuck 3 through the up-and-down swinging of the swing frame 9, so that an axial sliding structure is not needed, and the problem of deformation of the centering structure caused by jamming of the axial sliding mechanism is avoided.

The pipe twisting machine provided by the embodiment can adjust the levelness of the main chuck 3 in real time in the pipe twisting working process through the leveling device, so that the verticality of the pipe twisting is improved, and the working efficiency is ensured.

In addition, as a preferred embodiment, as shown in fig. 5, the lower engaging lug 23 is located at a connection position of the front connecting rod 12 and the rear connecting rod 13 of the centering mechanism 10, and since the lower engaging lug 23 is further away from the front end of the front connecting rod 12, when the main chuck 3 performs a pipe twisting operation, the swing amplitude of the leveling cylinder 11 can be made smaller, so as to reduce the stress on the leveling cylinder 11 and ensure the working safety of the leveling cylinder 11.

In addition, as a preferred embodiment, the leveling cylinder 11 is controlled by an electromagnetic valve, the electromagnetic valve has at least one oil passing position for keeping the leveling cylinder 11 to freely extend and contract, and in the oil passing position, the leveling cylinder 11 can extend and contract along with the left and right swinging of the main chuck 3, so that the damage of the leveling cylinder 11 caused by excessive stress is avoided.

In addition, as a preferred embodiment, as shown in fig. 1, at least one oil filling hole 24 is formed in the outer wall of the axial through hole of the front connecting rod 12, and oil is filled into the oil filling hole 24 to ensure smooth rotation between the front connecting rod 12 and the rear connecting rod 13, thereby ensuring safe operation of the centering mechanism 10.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. A leveling device, comprising:

the centering mechanism (10) is provided with a front connecting rod (12) and a rear connecting rod (13), the front connecting rod (12) and the rear connecting rod (13) are connected in an axial direction in a rotatable mode, and the front end of the front connecting rod (12) is connected with a main chuck (3) for twisting the pipe through a first cross shaft (14);

the swinging frame (9) is connected to the base (4) in a vertically swinging mode, and the swinging frame (9) is connected with the rear end of a rear connecting rod (13) of the centering mechanism (10) through a second cross shaft (18);

the front end of the leveling oil cylinder (11) is connected to the lower portion of a front connecting rod (12) of the centering mechanism (10) through a first horizontal pin shaft (22), and the rear end of the leveling oil cylinder is connected to the base (4) in a swinging mode.

2. The leveling device according to claim 1, wherein the lower end of the front connecting rod (12) of the centering mechanism (10) is provided with a lower connecting lug (23) extending downwards, and the leveling cylinder (11) is rotatably connected with the lower connecting lug (23) through a first horizontal pin shaft (22).

3. Levelling device according to claim 2 characterized in that the lower attachment lug (23) is located at the junction of the front (12) and rear (13) attachment rods of the centering mechanism (10).

4. Levelling device according to claim 1, characterized in that the first cross (14) comprises: first pedestal (15), first horizontal through-hole and the first vertical through-hole that the interval set up have on first pedestal (15), first horizontal through-hole be used for through second horizontal pin axle (16) with the front end of preceding connecting rod (12) is connected, first vertical through-hole be used for through first vertical pin axle (17) with main chuck (3) are connected.

5. Levelling device according to claim 1, characterized in that the second cross axle (18) comprises: second shaft frame (19), second horizontal through-hole and the vertical through-hole of second that the interval set up have on second shaft frame (19), second horizontal through-hole be used for through third horizontal pin axle (20) with the rear end of back connecting rod (13) is connected, the vertical through-hole of second be used for through second vertical pin axle (21) with base (4) are connected.

6. Levelling device according to claim 1, characterized in that the rear end of the levelling cylinder (11) is connected to the base (4) by a cardan shaft.

7. Levelling device according to claim 1, characterized in that the levelling cylinder (11) is controlled by means of a solenoid valve having at least one oil-passing position in which the levelling cylinder (11) is kept freely telescopic.

8. Levelling device according to claim 1, characterized in that the front connecting rod (12) has an axial through hole through which the rear end of the rear connecting rod (13) passes, the front end of the rear connecting rod (13) being clipped at the end of the axial through hole.

9. Levelling device according to claim 8, characterized in that the outer wall of the axial through hole of the front connecting rod (12) is provided with at least one oil filling hole (24).

10. A tube rolling machine is characterized by comprising: the leveling device of any one of claims 1 to 9.