CN210281313U

CN210281313U - Automatic tightening device for steel bar sleeve connection

Info

Publication number: CN210281313U
Application number: CN201921076719.8U
Authority: CN
Inventors: 邹俭
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-04-10
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses an automatic device of screwing up of steel bar muffjoint, including gear box, drive division and the clamp of setting in the gear box, the drive division includes driving gear, opening driven gear, 2 transmission gear components, opening driven gear one side is provided with first business turn over material opening, opening driven gear central authorities are provided with the through-hole that is linked together with first business turn over material opening, the transmission gear components includes 2 at least intermeshing's drive gear, be provided with on the gear box with first business turn over material opening and through-hole matched with second business turn over material opening, clamp is fixed on opening driven gear, the opening of clamp is unanimous with first business turn over material open position, gear box one side is connected with and drives driving gear pivoted motor. The utility model provides an automatic device of screwing up of steel bar muffjoint makes reinforcing bar and telescopic screw up more labour saving and time saving to light in weight, convenient to carry.

Description

Automatic tightening device for steel bar sleeve connection

Technical Field

The utility model belongs to the technical field of steel bar connection equipment technique and specifically relates to an automatic device of screwing up of steel bar sleeve connection is related to.

Background

In recent years, with the rapid development of the building industry in China, the state advocates that steel bars are suitable for mechanical connection, steel can be saved, the strength of a joint can be improved, and pollution is avoided. However, most of the existing steel bars are connected in engineering by using a wrench, the steel bars and the sleeves are connected manually, the working efficiency is low, and the condition that the steel bar connection is difficult to meet the acceptance standard due to insufficient torque force easily caused by manual work is easy to occur; certainly, a few people use the electric wrench to install the steel bar, but the existing electric wrench can only clamp the steel bar from the end part generally, when the end part of the sleeve is not connected with the steel bar, only the sleeve needs to be rotated, and at the moment, the electric wrench is not difficult to rotate, but when one end of the sleeve, which is required to be connected with the steel bar at two ends, is connected with one steel bar, and then the other steel bar is connected with the other steel bar, the electric wrench needs to clamp the end part of the steel bar to rotate, so that the electric; in the actual use process of the steel bar, the steel bar with an elbow at one end is sometimes needed, and the existing electric wrench cannot screw the steel bar; in addition, the steel bars are sometimes connected, and when the steel bars are connected, the steel bars are extremely difficult to clamp from the end parts and rotate, and the steel bars can only be screwed down manually, so that the torque is easy to be insufficient when the steel bars are screwed down manually, and the built steel bars cannot meet the acceptance standard easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an automatic device of screwing up of steel bar muffjoint, it can directly carry reinforcing bar or sleeve from the centre and rotate, can laborsaving also can improve work efficiency to whole device weight is lighter, and it is very convenient to carry.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

a steel bar sleeve connection automatic tightening device comprises a gear box, a driving part and a clamp, wherein the driving part is arranged in the gear box and comprises a driving gear, an opening driven gear and 2 transmission gear assemblies used for connecting the driving gear and the opening driven gear, a first feeding and discharging opening is formed in one side of the opening driven gear, a through hole communicated with the first feeding and discharging opening is formed in the center of the opening driven gear, the transmission gear assemblies comprise at least 2 transmission gears which are meshed with each other, and the distance between the 2 transmission gear assemblies is larger than the width of the first feeding and discharging opening; the gear box is provided with a second feeding and discharging opening matched with the first feeding and discharging opening and the through hole, the clamp is fixed on the opening driven gear, the position of the opening of the clamp is consistent with that of the first feeding and discharging opening, and one side of the gear box is connected with a motor driving the driving gear to rotate.

Still further, the width of the first feeding and discharging opening is larger than 16mm, and the diameter of the through hole is larger than 16 mm.

Furthermore, be provided with a mounting hole on the opening driven gear, be provided with the spring catch in the mounting hole, the spring catch includes with mounting hole sliding connection's locating pin and set up the reset spring between locating pin and mounting hole bottom, the reset spring both ends respectively with locating pin and mounting hole bottom between fixed connection, be provided with on the gear box with the one-way non return lug of spring catch matched with, the one-way non return lug coincides with the movement track of spring catch on length direction, one-way non return lug sets up to the inclined plane near opening driven gear one side.

Furthermore, an annular groove for the positioning pin to move is formed in the gear box, the annular groove coincides with the motion track of the spring pin, and the one-way non-return bump is arranged in the annular groove.

Furthermore, one end of the one-way check projection is provided with a travel switch for controlling the on-off of the motor.

Still further, the tongs are articulated tongs or direct-push tongs.

Furthermore, the motor is connected with a bevel gear in a transmission manner, the driving gear comprises a first tooth surface and a second tooth surface, the second tooth surface is meshed with the transmission gear, and the first tooth surface is meshed with the bevel gear.

Furthermore, the transmission gear assembly comprises a first transmission gear and a second transmission gear which are meshed with each other, the first transmission gear is meshed with the driving gear, the second transmission gear is meshed with the opening driven gear, and the distance between the 2 second transmission gears meshed with the opening driven gear is larger than the width of the first feeding and discharging opening.

Further, a handle is arranged on one side of the gear box.

The utility model has the advantages as follows:

1. the automatic tightening device for the steel bar sleeve connection provided by the utility model is provided with the opening driven gear and the clamp, and the opening driven gear is provided with the first feeding and discharging opening and the through hole, when the steel bar or the sleeve is tightened, the device is moved to the steel bar or the sleeve to be rotated, because the feeding opening is consistent with the opening of the clamp, and the gear box is provided with the second feeding and discharging opening matched with the feeding opening, the steel bar or the sleeve can be clamped only by utilizing the motor to drive the opening driven gear to rotate so that the first feeding and discharging opening and the second feeding and discharging opening are superposed, and the steel bar or the sleeve is positioned in the through hole after being clamped, at the moment, the motor is utilized to drive the driving gear to rotate, thereby the steel bar or the sleeve is rotated under the driving of the opening driven gear, the steel bar and the sleeve can be tightened, the operation is convenient, the connection is quick, the working efficiency is, the operation burden of workers is reduced, and meanwhile, the connection between the steel bar and the sleeve is more stable; in addition, the whole device has light weight, labor saving in use, more convenient carrying and excellent market prospect;

2. the utility model provides an automatic tightening device for steel bar sleeve connection, which can directly clamp from any position of a steel bar or a sleeve, and the prior tightening device can only clamp from the end part of the steel bar or the sleeve so as to rotate the steel bar, so that the device can not be used when meeting the steel bar of a connecting column or the steel bar with an elbow at the end part and can only be tightened by manpower, and the device of the utility model can clamp and rotate the two types of steel bars from any position, and has stronger universality; the sleeve with the positive and negative wires arranged at two ends is arranged on the market, when the device of the utility model is adopted for screwing, the sleeve can be directly clamped to rotate, and the two ends are simultaneously screwed with the reinforcing steel bars, so that the working efficiency is greatly improved;

3. the utility model discloses a drive gear group is connected driving gear and trompil driven gear, and drive gear group sets up 2, distance between the drive gear among 2 drive gear groups is greater than first business turn over material open-ended width, the drive gear that says so here is for the drive gear with opening driven gear engaged with mutually, when opening driven gear rotates promptly, drive gear group can drive opening drive gear in turn and rotate in order to avoid first business turn over material opening, make opening driven gear can normal rotation, and can change the drive ratio through the size that changes drive gear, thereby adjust the rotational speed of opening driven gear, also the life of extension fixture.

Drawings

In order to more clearly illustrate the technical solution of the present invention using the embodiments of the present invention, the drawings which are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an automatic tightening device for steel bar sleeve connection according to the present invention;

FIG. 2 is a schematic cross-sectional structural view of a gear box provided by the present invention;

fig. 3 is a schematic structural view of a spring pin provided by the present invention;

fig. 4 is a schematic view of a driving gear structure provided by the present invention;

reference numerals: 1-motor, 2-helical gear, 3-driving gear, 4-first transmission gear, 5-second transmission gear, 6-opening driven gear, 7-clamp, 8-gear box, 9-handle, 10-transmission gear component, 11-spring pin, 12-reinforcing steel bar, 13-second feeding and discharging opening, 14-first feeding and discharging opening, 15-annular groove, 16-one-way non-return lug, 17-positioning pin, 18-reset spring, 19-mounting hole, 20-first tooth surface and 21-second tooth surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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 "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are conventionally placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, 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 the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "in communication" are to be interpreted broadly, e.g., as either fixed or removable communication, or integrally connected; either mechanically or electrically; 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.

Examples

Referring to fig. 1 and 2, the present embodiment provides an automatic tightening device for steel bar sleeve connection, including a gear box 8, a driving part and a clamp 7 disposed in the gear box 8, wherein one end of the gear box 8 is provided with a handle, the driving part includes a driving gear 3, an opening driven

gear

6, 2 transmission gear assemblies 10 for connecting the driving gear 3 and the opening driven gear 6, one side of the opening driven gear 6 is provided with a first feeding and discharging opening 14, and the center of the opening driven gear 6 is provided with a through hole communicated with the first feeding and discharging opening 14, wherein the diameter of the through hole can be set to be more than 16mm, and the chord length between the first feeding and discharging opening 14 and the contact position of the opening driven gear 6 is larger than 16mm, since the common diameter of the steel bar 12 is 16-40mm, the diameter and the chord length of the through hole can also be set to be more than 40mm, so that the device can tighten the steel bars, the universal matching performance of the device is improved; the transmission gear assembly 10 comprises at least 2 transmission gears which are meshed with each other, the distance between the 2 transmission gear assemblies 10 is larger than the width of the first feeding and discharging opening 14, the width of the first feeding and discharging opening 14 is the distance between two side walls at the opening of the opening driven gear 6, the transmission gear assembly 10 is used for connecting the driving gear 3 and the opening driven gear 6, when the first feeding and discharging opening 14 rotates to a transmission gear, the transmission gear in the other transmission gear component 10 can still drive the opening driven gear 6 to rotate, and when the first feeding and discharging opening 14 rotates to the middle of the two transmission gear assemblies 10, the transmission gears in the two transmission gear assemblies 10 can be meshed with the opening driven gear 6 to drive the opening driven gear 6 to rotate, namely, the arrangement of 2 transmission gear assemblies 10 ensures that the first feeding and discharging opening 14 does not influence the rotation of the opening driven gear 6; the number of the transmission gears in each transmission gear assembly 10 is preferably 2, 2 transmission gears are meshed with each other and comprise a first transmission gear 4 and a second transmission gear 5, the first transmission gear 4 is meshed with the driving gear 3, the second transmission gear 5 is meshed with the opening driven gear 6, the distance between the circle centers of the second transmission gears 5 meshed with the opening driven gear 6 in the 2 transmission assemblies is larger than the width of the first feeding and discharging opening 14, the 2 transmission gear assemblies 10 can drive the opening transmission gears to rotate towards the same direction so as to realize the screwing of the reinforcing steel bars 12 and the sleeves, and the 2 transmission gears are also favorable for reducing the volume and the weight of the device, so that the device is more convenient to carry and use; in addition, the gear box 8 can be prepared by utilizing light metal materials such as aluminum, iron, stainless steel and the like, so that not only can the gears such as the driving gear 3, the transmission gear assembly 10, the opening driven gear 6 and the like which are arranged in the gear box 8 be well protected, but also the weight of the device can be effectively reduced, and the weight of the device can be maintained within 10kg, thereby further improving the carrying and using convenience of the device, and the gear box 8 can be provided with a handle 9 for holding, so that the device can be conveniently moved; a second feeding and discharging opening 13 matched with the first feeding and discharging opening 14 and the through hole is arranged on the gear box 8, the clamp 7 is fixed on the opening driven gear 6, the opening of the clamp 7 is consistent with the first feeding and discharging opening 14 in position, so that the steel bars 12 or the sleeves can smoothly enter the through hole at the center of the holed driven gear through the second feeding and discharging opening 13, the clamp 7 is used for clamping the reinforcing steel bar 12 or the sleeve so that the sleeve can rotate and be screwed down along with the opening driven gear 6, one side of the gear box 8 is connected with the motor 1 for driving the driving gear 3 to rotate, a coupling used for connecting the motor 1 and the driving gear 3 is arranged between the motor 1 and the driving gear 3, the motor 1 is fixed on the handle, the motor 1 can be set as a charging brushless motor 1, and can be used without plugging electricity, so that the device can be normally used outdoors where power is inconvenient to switch on; in addition, the clamp 7 can be an articulated clamp or a direct-push clamp, wherein the articulated clamp is two hinged clamping pieces, a transmission mechanism for controlling the folding or the separation of the clamping pieces is arranged between the clamping pieces, the effect of the ratchet clamp in the articulated clamp is the best, when in use, the ratchet inside the ratchet clamp can clamp the reinforcing steel bar 12 or the sleeve more stably when the opening driven gear 6 rotates forwards, and the opening and the closing of the two clamping pieces of the ratchet clamp 7 can be controlled by utilizing a torsion spring, so that the clamping and the releasing of the reinforcing steel bar 12 or the sleeve are realized; the direct-push type clamp mainly comprises a movable jaw and a fixed jaw, can stably clamp steel bars or sleeves with different sizes by adjusting the position of the movable jaw, and can adjust and fix the position of the movable jaw through a gear, a rack and a fixing pin; alternatively, a reinforcing plate for fixing the clamp 7 may be provided on the aperture driven gear 6, and the reinforcing plate may be fixed to the aperture driven gear 6 by a screw, a pin, or the like, and the clamp 7 may be fixed to the reinforcing plate by a screw, a pin, or the like, so as to reduce the force applied to the aperture driven gear 6 and prolong the service life of the aperture driven gear 6.

Further, referring to fig. 3, as a preferred embodiment of the automatic tightening device for steel bar sleeve connection provided in this embodiment, an installation hole is provided on the driven gear 6 with an opening, a spring pin 11 is provided in the installation hole, a positioning pin 17 where the spring pin 11 is slidably connected with the spring pin 11 and a return spring 18 located between the positioning pin and the bottom of the installation hole 19 are provided, two ends of the return spring 18 are respectively fixedly connected with the bottom of the installation hole 19, i.e. the positioning pin 17, one end of the positioning pin 17 away from the return spring 18 can compress the return spring 18 to retract into the installation hole when being under pressure, and when not under pressure, the positioning pin 17 is partially or completely located outside the installation hole 19 under the action of the return spring 18; the gear box 8 is provided with a one-way non-return lug 16 matched with the spring pin 11, the one-way non-return lug 16 is overlapped with the movement track of the spring pin 11 in the length direction, one side of the one-way non-return lug 16 close to the opening driven gear 6 is set to be an inclined plane, the distance left between the opening driven gear 6 and the gear box 8 is not less than the height of the highest position of the one-way non-return lug 16, namely, the opening driven gear 6 is not directly contacted with the one-way non-return lug 16, the distance between one side of the positioning pin far away from the reset spring and the surface of the opening driven gear 6 is not more than the distance between the opening driven gear 6 and the gear box 8, the positioning pin is propped against one end of the one-way non-return lug 16 under the action of the reset spring when the opening driven gear 6 rotates reversely, at the moment, the first feeding, thereby realizing the putting in and taking out of the steel bar 12 or the sleeve; when the opening driven gear 6 rotates forwards, the one-way non-return convex block 16 extrudes the positioning pin 17 to compress the return spring 18, so that the positioning pin 17 moves towards the mounting hole 19 along with the compression of the return spring 18, and the one-way non-return convex block 16 can not influence the forward rotation of the opening driven gear 6, so that the reinforcing steel bar 12 and the sleeve can be smoothly screwed; in addition, in order to facilitate the installation of the opening driven gear 6, an annular groove 15 can be arranged on the gear box 8, the movement tracks of the spring pins 11 of the annular groove 15 are overlapped, and the unidirectional non-return bump 16 is arranged in the annular groove 15, so that the opening driven gear 6 does not need to be spaced from the gear box 8 when being installed, and the volume of the device is favorably reduced; in order to make the device more convenient to use, a travel switch for controlling the power on and off of the motor 1 can be arranged at one end (the end is connected with the inclined plane) of the one-way non-return lug 16, one end of the one-way non-return lug 16, which is used for installing the travel switch, is the end of the one-way non-return lug which is used for propping against the positioning pin when the opening driven gear 6 rotates reversely, the travel switch is a common structure on the market and mainly comprises an operating head, a contact system and a gear box, and a direct-acting travel switch is taken as an example and mainly comprises a button, a push rod, a spring, a dynamic contact and a dynamic contact; when opening driven gear 6 reverses, the locating pin can extrude travel switch for motor 1 cuts off the power supply, thereby makes opening driven gear 6 stop rotating, and first business turn over material opening 14 and second business turn over material opening 13's opening coincidence makes things convenient for the workman to put into reinforcing bar 12 or sleeve or take out this moment.

Further, please refer to fig. 4, as a preferred embodiment of the automatic tightening device for connecting a steel bar sleeve provided in this embodiment, a bevel gear 2 is disposed between the driving gear 3 and the motor 1, the motor 1 is in transmission connection with the bevel gear 2, that is, the motor 1 drives the bevel gear 2 to rotate, the driving gear 3 includes a first tooth surface 20 and a second tooth surface 21, the second tooth surface 21 is meshed with the transmission gear, the first tooth surface 20 is meshed with the bevel gear, and the bevel gear 2 is utilized to drive the driving gear 3 to rotate, which can not only adjust the rotation speed of the driving gear 3 by changing the size of the bevel gear 2, but also change the setting direction of the motor 1, so that the motor 1 is located in the length direction of the gear box 8, thereby facilitating the carrying and placement of.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic tightening device for steel bar sleeve connection is characterized by comprising a gear box (8), a driving part and a clamp (7) which are arranged in the gear box (8), wherein the driving part comprises a driving gear (3), an opening driven gear (6) and 2 transmission gear assemblies (10) which are used for connecting the driving gear (3) and the opening driven gear (6), a first feeding and discharging opening (14) is formed in one side of the opening driven gear (6), a through hole communicated with the first feeding and discharging opening (14) is formed in the center of the opening driven gear (6), the transmission gear assemblies (10) comprise at least 2 transmission gears which are meshed with each other, the distance between the two transmission gear assemblies (10) is larger than the width of the first feeding and discharging opening (14), and a second feeding and discharging opening (13) matched with the first feeding and discharging opening (14) and the through hole is formed in the gear box (8), the clamp (7) is fixed on the opening driven gear (6), the opening of the clamp (7) is consistent with the position of the first feeding and discharging opening (14), and one side of the gear box (8) is connected with a motor (1) in transmission connection with the driving gear (3).

2. An automatic tightening device for reinforcing bar muffin connections according to claim 1, characterized in that the width of the first inlet and outlet opening (14) is larger than 16mm and the diameter of the through hole is larger than 16 mm.

3. The automatic reinforcing bar sleeve coupling tightening device according to claim 1, the opening driven gear (6) is provided with a mounting hole (19), a spring pin (11) is arranged in the mounting hole (19), the spring pin (11) comprises a positioning pin (17) in sliding connection with the mounting hole (19) and a return spring (18) arranged between the positioning pin (17) and the bottom of the mounting hole (19), two ends of the reset spring (18) are respectively and fixedly connected with the positioning pin (17) and the bottom of the mounting hole (19), the gear box (8) is provided with a one-way non-return convex block (16) matched with the spring pin (11), the one-way non-return convex block (16) is overlapped with the movement track of the spring pin (11) in the length direction, one side of the one-way non-return convex block (16) close to the opening driven gear (6) is provided with an inclined surface.

4. The automatic tightening device for the steel bar sleeve connection according to claim 3, wherein an annular groove (15) for moving the positioning pin is formed in the gear box (8), the annular groove (15) coincides with the movement track of the spring pin (11), and the one-way non-return projection (16) is arranged in the annular groove (15).

5. The automatic tightening device for the steel bar sleeve connection according to claim 3, wherein one end of the one-way check projection (16) is provided with a travel switch for controlling the on and off of the motor (1).

6. Automatic tightening device for steel bar muff connections according to claim 1, characterized in that the gripper (7) is an articulated gripper or a direct-push gripper.

7. An automatic tightening device for a steel bar sleeve joint according to claim 1, wherein the motor (1) is in transmission connection with a bevel gear (2), the driving gear (3) comprises a first tooth surface (20) and a second tooth surface (21), the second tooth surface (21) is meshed with a transmission gear, and the first tooth surface (20) is meshed with the bevel gear (2).

8. The automatic tightening device for the steel bar sleeve connection according to claim 1, wherein the transmission gear assembly (10) comprises a first transmission gear (4) and a second transmission gear (5) which are meshed with each other, the first transmission gear (4) is meshed with the driving gear (3), the second transmission gear (5) is meshed with the opening driven gear (6), and the distance between the 2 second transmission gears (5) meshed with the opening driven gear is larger than the width of the first feeding and discharging opening (14).

9. An automatic tightening device for reinforcing bar sleeve connection according to any one of claims 1 to 8, wherein a handle (9) is provided at one side of the gear case (8).