CN210265698U - Power tong gearbox - Google Patents

Abstract

The utility model discloses a power tong gearbox, including the box, set up at the last roof of box upper end, set up at the PMKD of box lower extreme and set up the gear assembly in the box, go up roof, PMKD and gear assembly and constituted the gearbox body, PMKD be used for with installation face fixed connection. The utility model has the characteristics of reasonable in design and the operation of being convenient for, the utility model discloses the power tong gearbox is guaranteeing to install the gear assembly and effectual improvement to the protective properties of the gear assembly in the use, and then effectual assurance the utility model discloses an use the precision.

Description

Power tong gearbox

Technical Field

The utility model relates to a relevant technical field of gearbox specifically is a power tong gearbox.

Background

The working principle of the power tongs is that the power of the workover rig is transmitted to a hydraulic motor of the hydraulic power tongs, passes through a stroke reducer and then is reduced by two stages or one stage, so that an opening gear of a tong head rotates to generate high and low rotating speeds, and a pipe (drilling tool) is driven to rotate. When the opening gear rotates, the plate frame does not rotate under the braking action of the brake hammer, so that the opening gear and the jaw plate frame move relatively. Thus, the two rollers of the jaw plate climb on the slope plate and force the jaws on the crotch plate to move towards the center of the pipe (drilling tool) until the pipe (drilling tool) is gripped, and then the jaws and the opening gear drive the pipe (drilling tool) to rotate.

The applicant of the invention finds that the gearbox for the power tongs in the prior art has a simple structure and a single use mode due to the design characteristics of the gearbox, reduces the protection effect on the gear assembly of the gearbox in the use process, and further cannot meet the use requirement of the existing gearbox for the power tongs.

To this end, a power tong gearbox is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power tong gearbox to be used for among the biological prior art who provides in solving above-mentioned background art power tong to use the gearbox because the design characteristics of its own, simple structure and using-way are single, have reduced the guard action to its gear assembly in the use, and then can't satisfy the problem to the user demand of power tong to use gearbox at present.

In order to achieve the above object, the utility model provides a following technical scheme: a power tong gearbox comprises a box body, an upper top plate arranged at the upper end of the box body, a fixed bottom plate arranged at the lower end of the box body and a gear assembly arranged in the box body, wherein the box body, the upper top plate, the fixed bottom plate and the gear assembly form a gearbox body, and the fixed bottom plate is used for being fixedly connected with an installation surface; the gear assembly is convenient to install and protect through the gearbox body, and the use precision of the gear assembly is effectively improved;

the fixed bottom plate and the upper top plate are arranged in the circumferential direction of the periphery of the box body;

the gear assembly is composed of a large gear and a small gear meshed with the large gear, the large gear is arranged at one end, opposite to the upper top plate, of the box body through a first driving main shaft, the small gear is also arranged at one end, opposite to the upper top plate, of the box body through a second driving main shaft, and an arc-shaped groove matched with the first driving main shaft and the second driving main shaft is formed in the upper top plate;

as a preferable aspect of the present invention, the reinforcing plates are disposed at both ends of the periphery of the box body, both ends of the reinforcing plates are respectively and fixedly connected with the upper top plate and the fixed bottom plate, and the inner sides of the reinforcing plates are fixedly connected with the periphery of the box body, and the reinforcing plates are arranged in one of a triangle, a rectangle, a semi-cylindrical or a diamond shape, so as to be convenient for supporting the top plate and the fixed bottom plate through the reinforcing plates, thereby effectively ensuring the working accuracy of the gear assembly;

as a preferable aspect of the present invention, the present invention further comprises mounting holes disposed at the peripheral corners of the fixed base plate and a cushion chamber disposed at the lower end surface of the fixed base plate, wherein the mounting holes are disposed as through holes, the mounting holes are disposed as countersunk holes, and the cross section of each countersunk hole is disposed in a "T" shape, so that the fixed base plate is fixedly connected with the mounting surface through the mounting holes, and in addition, because the cross section of the mounting hole is disposed in a "T" shape, the fixing nut for the fixed base plate is conveniently mounted in a concealed manner, thereby ensuring the tidiness of the periphery of the transmission body and further effectively improving the use precision of the present invention;

as a preferable aspect of the utility model, the buffer cavity is arranged in the length direction of the fixed bottom plate, the buffer cavity is arranged in an inward concave manner, the height of the buffer cavity is set to be 15mm-30mm, and the connection part of the inner wall of the buffer cavity and the fixed bottom plate is all processed in an arc manner, because the gear assembly generates mechanical pressure to the gearbox body in the working process, the mechanical pressure to the mounting surface by the fixed bottom plate is conveniently buffered through the buffer cavity, the supporting effect of the gearbox body to the gear assembly is effectively ensured, and the use precision of the utility model is effectively improved;

as a preferred aspect of the utility model, in addition still include air guide portion and connecting hole of setting in box one side, the air guide portion sets up by the connecting hole, and the air guide portion sets up in the connecting hole homogeneous phase and one side of gear wheel, the air guide portion is linked together with the box, and the air guide portion is provided with certain contained angle with the box junction, the contained angle sets up to 15 ° -30 °, and the department of being connected with the box in the air guide portion is provided with the filter screen, and then be convenient for lead the air that enters into the box through the air guide portion, in addition because the air guide portion is 15 ° -30 ° setting with the box, thereby be convenient for cushion the air that enters into the box, and be convenient for filter the air that enters into the box through the filter screen, and then the effectual use accuracy that; the connecting holes are arranged as semi-through holes, and the connecting holes are externally connected with auxiliary equipment through the connecting flange, so that the use flexibility of the utility model is effectively improved;

as a preferable aspect of the present invention, the fixed bottom plate and the upper top plate are respectively integrated with the box body, and the outer diameter of the upper top plate is larger than the outer diameter of the fixed bottom plate, thereby effectively increasing the limiting effect of the upper top plate on the gear assembly, thereby effectively avoiding the gear assembly from deflecting during the use process, and further effectively improving the use precision of the present invention;

as a preferable aspect of the present invention, the periphery of the arc-shaped groove is provided with a reinforcing wing plate adapted to the arc-shaped groove, the reinforcing wing plate is fixedly connected to the arc-shaped groove, and the inner wall of the arc-shaped groove is provided with a smooth arc surface, so that the first driving spindle and the second driving spindle are conveniently limited in the radial direction by the arc-shaped groove, thereby effectively ensuring the precision of meshing between the large gear and the small gear, and further effectively ensuring the use precision of the gear assembly;

as an aspect of the utility model is preferred, the drive shaft of first drive main shaft and the relative mirror image setting of drive shaft of second drive main shaft, and the drive shaft of first drive main shaft is connected with power equipment's output shaft through connecting the bearing, and the drive shaft of second drive main shaft is connected with power tong's binding clip through connecting the bearing, and then is convenient for through the intermeshing effect between pinion and the gear, has guaranteed the precision of opening and shutting of power tong's binding clip, and then effectual improvement the utility model discloses a use precision.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the characteristics of reasonable in design and the operation of being convenient for, the utility model discloses the power tong gearbox is guaranteeing to install the gear assembly and effectual improvement to the protective properties of the gear assembly in the use, and then effectual assurance the utility model discloses an use the precision.

Drawings

FIG. 1 is a schematic structural view of the overall structure of the present invention;

fig. 2 is a schematic structural view of another view of fig. 1 in the present invention;

fig. 3 is a schematic structural view of the front view of fig. 1 in the present invention;

fig. 4 is a schematic structural diagram of the top view of fig. 1 in the present invention;

fig. 5 is a schematic structural view of the bottom view of fig. 1 in the present invention;

fig. 6 is a schematic structural view of the half-sectional view of fig. 1 in the present invention.

In the figure: 1-fixed bottom plate, 10-mounting hole, 11-buffer cavity, 2-box body, 3-upper top plate, 31-mounting lifting lug, 32-arc groove, 4-reinforcing plate, 5-small gear, 6-big gear, 7-first driving main shaft, 8-second driving main shaft, 91-air guide part and 92-connecting hole.

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, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides a technical solution: a power tong gearbox comprises a box body 2, an upper top plate 3 arranged at the upper end of the box body 2, a fixed bottom plate 1 arranged at the lower end of the box body 2 and a gear assembly arranged in the box body 2, wherein the box body 2, the upper top plate 3, the fixed bottom plate 1 and the gear assembly form a gearbox body, the fixed bottom plate 1 is used for being fixedly connected with an installation surface, and the gear assembly is convenient to install and protect through the gearbox body, so that the use precision of the utility model is effectively improved; the fixed bottom plate 1 and the upper top plate 3 are circumferentially arranged at the periphery of the box body 2, the fixed bottom plate 1 and the upper top plate 3 are respectively integrally formed with the box body 2, and the outer diameter of the upper top plate 3 is larger than that of the fixed bottom plate 1, so that the limiting effect of the upper top plate 3 on the gear assembly is effectively increased, the gear assembly is effectively prevented from deflecting in a displacement manner in the using process, and the use precision of the gear assembly is effectively improved;

referring to fig. 1, 2 and 3, the gear assembly is composed of a large gear 6 and a small gear 5 engaged with the large gear, the large gear 6 is disposed at one end of the box body 2 opposite to the upper top plate 3 through a first driving main shaft 7, the small gear 5 is also disposed at one end of the box body 2 opposite to the upper top plate 3 through a second driving main shaft 8, and the upper top plate 3 is provided with an arc-shaped groove 32 matched with the first driving main shaft 7 and the second driving main shaft 8, the periphery of the arc-shaped groove 32 is provided with a reinforcing wing plate matched with the arc-shaped groove, the reinforced wing plates are fixedly connected with the arc-shaped groove 32, the inner wall of the arc-shaped groove 32 is provided with a smooth arc surface, so as to facilitate the radial direction limitation of the first driving spindle 7 and the second driving spindle 8 through the arc-shaped slot 32, therefore, the meshing precision between the large gear 6 and the small gear 5 is effectively ensured, and the use precision of the gear assembly is further effectively ensured; the driving shaft of the first driving main shaft 7 and the driving shaft of the second driving main shaft 8 are arranged in a relative mirror image mode, the driving shaft of the first driving main shaft 7 is connected with an output shaft of power equipment through a connecting bearing, the driving shaft of the second driving main shaft 8 is connected with a binding clip of a power tong through a connecting bearing, and therefore the opening and closing precision of the binding clip of the power tong is guaranteed through the mutual meshing action between the pinion 5 and the gear, and the use precision of the power tong is effectively improved;

referring to fig. 1, 2 and 3, the reinforcing plates 4 are respectively arranged at two ends of the periphery of the box body 2, two ends of each reinforcing plate 4 are respectively fixedly connected with the upper top plate 3 and the fixed bottom plate 1, the inner sides of the reinforcing plates 4 are fixedly connected with the periphery of the box body 2, and the reinforcing plates 4 are arranged in one of a triangle shape, a rectangle shape, a semi-cylindrical shape or a diamond shape, so that the top plate and the fixed bottom plate 1 can be conveniently supported through the reinforcing plates 4, and the working precision of the gear assembly is effectively guaranteed;

with specific reference to fig. 1, fig. 2 and fig. 3, the gearbox includes a mounting hole 10 disposed at the peripheral corner of the fixing base plate 1 and a buffer cavity 11 disposed on the lower end surface of the fixing base plate 1, the mounting hole 10 is a through hole, the mounting hole 10 is a countersunk hole, and the cross section of the countersunk hole is T-shaped, so that the fixing base plate 1 is fixedly connected with the mounting surface through the mounting hole 10, and in addition, because the cross section of the mounting hole 10 is T-shaped, the fixing nut for the fixing base plate 1 is hidden mounted, the tidiness of the periphery of the gearbox body is ensured, and the use accuracy of the gearbox is effectively improved; the buffer cavity 11 is arranged along the length direction of the fixed base plate 1, the buffer cavity 11 is arranged in a concave manner, the height of the buffer cavity 11 is set to be 15-30 mm, and the connecting part of the inner wall of the buffer cavity 11 and the fixed base plate 1 is subjected to circular arc treatment, so that mechanical pressure generated by the gear assembly on the transmission body in the working process is conveniently buffered by the buffer cavity 11, the mechanical pressure of the fixed base plate 1 on the mounting surface is further effectively guaranteed, the supporting effect of the transmission body on the gear assembly is further effectively guaranteed, and the use precision of the transmission is effectively improved;

referring to fig. 6, in addition, an air guide portion 91 and a connection hole 92 are provided at one side of the case body 2, the air guide portion 91 is provided beside the connection hole 92, and the air guide part 91 is arranged at both the connecting hole 92 and one side of the big gear 6, which effectively ensures the working precision of the big gear 6, the air guide part 91 is communicated with the box body 2, and the joint of the air guide part 91 and the box body 2 is provided with a certain included angle which is set to be 15-30 degrees, and a filter screen (not marked in the figure) is arranged at the connection part of the air guide part 91 and the box body 2 so as to guide the air entering the box body 2 through the air guide part 91, and in addition, because the air guide part 91 is arranged at an angle of 15-30 degrees with the box body 2, therefore, the air entering the box body 2 can be buffered conveniently, and the air entering the box body 2 can be filtered conveniently through the filter screen, so that the use precision of the utility model is effectively improved; the connecting hole 92 is a semi-through hole, and the connecting hole 92 is externally connected with auxiliary equipment through a connecting flange, so that the use flexibility of the utility model is effectively improved;

specifically referring to fig. 1 and 3, mounting lugs 31 are arranged on both sides of the upper top plate 3, and the mounting lugs 31 are fixedly connected with both sides of the upper top plate 3, so that the mounting lugs 31 are conveniently connected with the periphery of the mounting surface, and the use precision of the transmission body is effectively improved.

The working principle is as follows: the power tong gearbox is guaranteeing to install and effectual improvement the protective properties to the gear assembly in the use to the gear assembly, and then effectual assurance the utility model discloses a use precision.

The using method comprises the following steps: the first driving main shaft 7 and the second driving main shaft 8 are limited in the radial direction through the arc-shaped groove 32, so that the meshing precision between the large gear 6 and the small gear 5 is effectively guaranteed; the driving shaft of the first driving main shaft 7 and the driving shaft of the second driving main shaft 8 are arranged in a relative mirror image mode, the driving shaft of the first driving main shaft 7 is connected with an output shaft of power equipment through a connecting bearing, and the driving shaft of the second driving main shaft 8 is connected with a tong head of a power tong through a connecting bearing; the opening and closing precision of the binding clip of the power tong is ensured through the mutual meshing action between the pinion 5 and the gear, and the reinforcing plates 4 are arranged at the two ends of the periphery of the box body 2, so that the top plate and the fixed bottom plate 1 are supported through the reinforcing plates 4; the fixing bottom plate 1 is fixedly connected with the mounting surface through the mounting hole 10, and in addition, the section of the mounting hole 10 is arranged to be T-shaped, so that the fixing nut for fixing the bottom plate 1 can be conveniently mounted in a hidden manner; the mechanical pressure of the fixed bottom plate 1 on the mounting surface is buffered conveniently through the buffer cavity 11, and the supporting effect of the gearbox body on the gear assembly is further ensured; the air guide part 91 is convenient for guiding the air entering the box body 2, and the air guide part 91 and the box body 2 are arranged at an angle of 15-30 degrees, so that the air entering the box body 2 is convenient to buffer, and the air entering the box body 2 is convenient to filter through the filter screen.

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 (6)

1. A power tong gearbox characterized in that: the gearbox comprises a gearbox body (2), an upper top plate (3) arranged at the upper end of the gearbox body (2), a fixed bottom plate (1) arranged at the lower end of the gearbox body (2) and a gear assembly arranged in the gearbox body (2), wherein the gearbox body is formed by the gearbox body (2), the upper top plate (3), the fixed bottom plate (1) and the gear assembly, and the fixed bottom plate (1) is fixedly connected with an installation surface;

the fixed bottom plate (1) and the upper top plate (3) are arranged in the circumferential direction of the periphery of the box body (2);

the gear assembly comprises gear wheel (6) and pinion (5) rather than meshing mutually, gear wheel (6) set up the one end relative with last roof (3) at box (2) through first drive main shaft (7), pinion (5) also set up the one end relative with last roof (3) at box (2) through second drive main shaft (8), and go up being provided with arc wall (32) with first drive main shaft (7) and second drive main shaft (8) looks adaptation on roof (3).

2. A power tong gearbox as defined in claim 1, wherein: the box is characterized in that reinforcing plates (4) are arranged at two ends of the periphery of the box body (2), two ends of each reinforcing plate (4) are fixedly connected with the upper top plate (3) and the fixed bottom plate (1) respectively, the inner sides of the reinforcing plates (4) are fixedly connected with the periphery of the box body (2), and the reinforcing plates (4) are arranged into one of a triangle, a rectangle, a semi-cylindrical shape or a diamond shape.

3. A power tong gearbox according to claim 2, characterized in that: still including setting up mounting hole (10) and the cushion chamber (11) of setting at the lower terminal surface of PMKD (1) in PMKD (1) edge all around, mounting hole (10) set up to the through hole, mounting hole (10) set up to the counter sink, and the cross-section of counter sink sets up to "T" type.

4. A power tong gearbox according to claim 3, characterized in that: the buffer cavity (11) is arranged in the length direction of the fixed base plate (1), the buffer cavity (11) is arranged in a concave mode, the height of the buffer cavity (11) is set to be 15mm-30mm, and the connecting part of the inner wall of the buffer cavity (11) and the fixed base plate (1) is subjected to circular arc treatment.

5. A power tong gearbox according to claim 4, characterized in that: still including setting up air guide portion (91) and connecting hole (92) in box (2) one side in addition, air guide portion (91) set up by connecting hole (92), and air guide portion (91) set up the one side setting of connecting hole (92) homogeneous phase and gear wheel (6), air guide portion (91) are linked together with box (2), and air guide portion (91) are provided with certain contained angle with box (2) junction, the contained angle sets up to 15-30, and is provided with the filter screen with box (2) junction in air guide portion (91), connecting hole (92) set up to half through-hole, and connecting hole (92) are through flange external and auxiliary assembly.

6. A power tong gearbox according to any one of claims 1-5, characterized in that: the driving shaft of the first driving main shaft (7) and the driving shaft of the second driving main shaft (8) are arranged in a relative mirror image mode, the driving shaft of the first driving main shaft (7) is connected with an output shaft of power equipment through a connecting bearing, and the driving shaft of the second driving main shaft (8) is connected with a tong head of a power tong through a connecting bearing.

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