CN210855140U

CN210855140U - Screw-in device is assisted to straining bolt's nut

Info

Publication number: CN210855140U
Application number: CN201921794434.8U
Authority: CN
Inventors: 慕华锋; 刘洪清; 张铮; 张宗亮
Original assignee: RONGCHENG METAL FORMING MACHINE GROUP CO Ltd
Current assignee: RONGCHENG METAL FORMING MACHINE GROUP CO Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-26
Anticipated expiration: 2029-10-24

Abstract

The utility model relates to a screw in device is assisted to tie bolt's nut, including the automobile body that has the walking wheel and the elevating gear of setting on the automobile body to and the tray that goes up and down through the elevating gear drive, the tray rotates with elevating gear to be connected. The utility model can assist the screwing in of the nut of the tension bolt of the large-scale equipment, is simple and practical, saves the step of manually lifting the nut, and improves the phenomenon of inconvenient operation when one person screws in the nut; the bolts and the nuts can be aligned in advance before assembly, so that the working difficulty of the whole machine assembly is reduced, and the working efficiency is improved; use the utility model discloses a device only needs alone just can accomplish the assembly of nut and tie bolt, has saved the manual work, has reduced installation cost.

Description

Screw-in device is assisted to straining bolt's nut

Technical Field

The utility model relates to the field of mechanical equipment, specifically indicate a screw in device is assisted to tie bolt's nut.

Background

When installing mechanical equipment such as large-scale press, hydraulic press, forging machine, need fasten with tie bolt, because the tie bolt of main equipment is than thicker, the nut of adoption is also big again heavy, and in the complete machine assembling process, the lower part space at equipment is installed mostly to this kind of nut, the space is little and lift by crane inconveniently, consequently need the manual work to lift the nut when the assembly, alone move motionlessly, two people's cooperation then is difficult to coordinate the synchronization, the work degree of difficulty of complete machine assembly has been increased, the work efficiency is reduced, and the installation cost is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nut auxiliary screwing device of the tension bolt aiming at the defects of the prior art, which can assist the nut screwing of the tension bolt of large-scale equipment, is simple and practical, reduces the working difficulty of the whole machine assembly and improves the working efficiency; the labor is saved, and the installation cost is reduced.

The utility model discloses a through following technical scheme realizes, provides a screw in device is assisted to straining bolt's nut, including the automobile body that has the walking wheel and the vertical elevating gear who sets up on the automobile body to and the tray that goes up and down through the elevating gear drive, the tray rotates with elevating gear to be connected.

The automobile body of this scheme is little flatbed, and is small, the chassis is low, remove in a flexible way, can use in narrow and small space. Seted up through the groove on the dolly, elevating gear passes through groove and automobile body rigid coupling, because the bottom of automobile body still has certain space to elevating gear can extend and contract, consequently passes elevating gear the automobile body, can further reduce the utility model discloses the volume of device, and then reduces required space that occupies. The tray is connected with the lifting device through a bearing, the bearing is a thrust bearing, and the thrust bearing is a special bearing which is used for bearing axial force specially, namely the force in the direction parallel to the shaft. The lifting end of the lifting device is fixedly connected with a supporting plate, the supporting plate is fixedly connected with a base of a thrust bearing, a top seat of the thrust bearing is fixedly connected with the lower end face of the tray, and the tray connected to the lifting device through the thrust bearing has better bearing capacity.

Preferably, the vehicle body comprises a transverse vehicle disc and a hand-held handle fixedly connected to one side of the vehicle disc, the walking wheels are self-locking walking wheels, and the four walking wheels are fixedly connected to four corners of the lower end face of the vehicle disc respectively. The four walking wheels are distributed at four corners of the chassis, stress of the chassis is dispersed, stress of the vehicle body is balanced, the hand handle comprises two parallel inclined rods fixedly connected with the chassis, the upper ends of the inclined rods are fixedly connected through the horizontal rods, and the vehicle body is pushed or dragged through the hand handle, so that the vehicle body can move accurately. The middle part of the vehicle disc is provided with a through groove, and the lifting device is positioned in the through groove and fixedly connected with the vehicle disc.

Preferably, the lifting device is a hydraulic jack, the lifting end of the hydraulic jack is connected with the tray through a bearing, and an oil cylinder of the hydraulic jack penetrates through the vehicle body to be fixedly connected. The hydraulic jack has the advantages that the bearing capacity is high, the position precision is high, the control is convenient, labor is saved, the oil cylinder of the hydraulic jack is fixedly connected with the car body, the piston is located above the car body and connected with the tray, the handle of the hydraulic jack is located below the car body, the hydraulic jack is turned over in a space between the car tray and the travelling wheel, the lifting of the hydraulic jack is achieved, the handle penetrates out of one side corresponding to the handle, the lifting of the hydraulic jack can be achieved directly by stepping on the handle through feet, two hands are liberated, and the operation is convenient.

Preferably, the tray is circumferentially provided with a plurality of handles. The tray is a disc structure, and the central shaft of the lifting device is collinear with the center of the disc. The handle circumference rigid coupling can drive the tray through stirring the handle and rotate in the outside of tray, provides better stress point for the tray.

Preferably, the upper end face of the tray is provided with a groove matched with the shape of the nut, and the center of the groove is collinear with the central shaft of the bearing. The groove of the scheme is a hexagonal groove, the inner diameter of the groove is larger than the outer diameter of the nut by 1-2 mm, the nut can be placed in the groove and then clamped, when the tray is rotated, the tray drives the nut to rotate, when the nut is screwed in the bolt, the nut can be clamped by the groove, the nut is prevented from sliding from the tray, and the nut can be screwed in the groove in an auxiliary mode within a certain range.

Preferably, the upper end face of the tray is inserted with a vertical sleeve, the upper end face of the sleeve is provided with a deep hole matched with the shape of the nut, the center of the deep hole is collinear with the central shaft of the bearing, and a spring is arranged between the bottom of the deep hole and the nut. The sleeve can synchronously rotate along with the tray, the cross section of the deep hole is a regular hexagon, the inner diameter of the deep hole is 1-2 mm larger than the outer diameter of the nut, the nut can be clamped after being placed in the deep hole, the nut is supported by the spring, and when the tray is rotated, the tray drives the nut to rotate. When the nut is aligned and matched with the threaded end of the bolt, the lifting device is continuously lifted, the lifting device drives the tray to move upwards, the tray drives the sleeve to move upwards, the nut is fixed because the bolt abuts against the nut, and the nut can be inserted into the deep hole to compress the spring because the sleeve moves upwards. Then the lifting process of the lifting device is stopped, the nut can be pushed upwards towards the direction of the bolt under the action of the restoring elasticity of the spring, the tray is rotated, the tray drives the nut to rotate, the nut and the bolt rotate relatively, and the nut can be screwed into the bolt. Through sleeve and spring, when making the screw in nut, only need rotate alone the tray can, need not to rise elevating gear in step, further simplified the operating procedure.

Preferably, the lower end face of the sleeve is fixedly connected with a plurality of clamping blocks, and the tray is provided with clamping grooves matched with the clamping blocks. The clamping block of this scheme sets up two at least, distributes in telescopic lower terminal surface bottom both sides, blocks the sleeve through the draw-in groove, realizes tray and telescopic grafting, guarantees that the sleeve rotates along with the tray is synchronous. Because the sleeve is detachable, the sleeve can be used for screwing in nuts with different sizes by replacing the sleeve with different sizes.

Preferably, a lifting hook is arranged on the vehicle body. The lifting hooks are two and distributed on two sides of the vehicle body, the lifting device can be connected, the position of the vehicle body can be transferred through the lifting device, and the lifting hook is suitable for installation positions where the ground is uneven and the vehicle body cannot translate automatically.

The utility model has the advantages that: the utility model can assist the screwing in of the nut of the tension bolt of the large-scale equipment, is simple and practical, saves the step of manually lifting the nut, and improves the phenomenon of inconvenient operation when one person screws in the nut; the bolts and the nuts can be aligned in advance before assembly, so that the working difficulty of the whole machine assembly is reduced, and the working efficiency is improved; use the utility model discloses a device only needs alone just can accomplish the assembly of nut and tie bolt, has saved the manual work, has reduced installation cost.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;

FIG. 4 is a view in the direction A of FIG. 3;

shown in the figure:

1. the lifting device comprises a vehicle body, 11 parts of a vehicle tray, 12 parts of a hand handle, 2 parts of a lifting device, 3 parts of a tray, 4 parts of a sleeve, 5 parts of a spring, 6 parts of a lifting hook.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Example 1:

a nut auxiliary screwing device of a tension bolt is shown in figure 1 and comprises a vehicle body 1 with walking wheels, a lifting device 2 arranged on the vehicle body 1 and a tray 3 driven to lift through the lifting device 2, wherein the tray 3 is rotatably connected with the lifting device 2 through a bearing.

The vehicle body 1 comprises a transverse vehicle disc 11 and a hand-held handle 12 fixedly connected to one side of the vehicle disc 11, the walking wheels are self-locking walking wheels, and the number of the walking wheels is four, and the four walking wheels are respectively and fixedly connected to four corners of the lower end face of the vehicle disc 11. The lifting device 2 is a hydraulic jack, the lifting end of the hydraulic jack is connected with the tray 3 through a bearing, and an oil cylinder of the hydraulic jack penetrates through the vehicle body 1 to be fixedly connected. The tray 3 is circumferentially provided with a plurality of handles. The vehicle body 1 is provided with a hoisting hook 6.

The vehicle body 1 is a small flat car, has small volume, low chassis and flexible movement, and can be used in narrow space. Seted up through the groove on dolly 1, elevating gear 2 passes through groove and automobile body 1 rigid coupling, because the bottom of automobile body 1 still has certain space to elevating gear 2 can extend and contract, consequently passes elevating gear 2 automobile body 1, can further reduce the utility model discloses the volume of device, and then reduces required space that occupies. The bearing is a thrust bearing, and the thrust bearing is a special bearing which is used for bearing axial force specially, namely the force in the direction parallel to the shaft. The lifting end of the lifting device 2 is fixedly connected with a supporting plate, the supporting plate is fixedly connected with a base of a thrust bearing, a top seat of the thrust bearing is fixedly connected with the lower end face of the tray 3, and the tray 3 connected to the lifting device 2 through the thrust bearing has better bearing capacity.

The four walking wheels are distributed at four corners of the chassis 11, stress of the chassis 11 is dispersed, stress of the vehicle body 1 is balanced, the hand-held handle 12 comprises two parallel inclined rods fixedly connected with the chassis 11, the upper ends of the inclined rods are fixedly connected through horizontal rods, the vehicle body 1 is pushed or dragged through the hand-held handle 12, and the vehicle body 1 can move accurately. The middle part of the chassis 11 is provided with a through groove, and the lifting device 2 is positioned in the through groove and fixedly connected with the chassis 11.

The hydraulic jack is large in bearing capacity, high in position precision, convenient to control and labor-saving, an oil cylinder of the hydraulic jack is fixedly connected with the car body 1, a piston is located above the car body 1 and connected with the tray 3, a handle of the hydraulic jack is located below the car body 1 and is turned over in a space between the car disc 11 and the travelling wheels to achieve lifting of the hydraulic jack, the handle penetrates out of one side corresponding to the hand handle 12, lifting of the hydraulic jack can be achieved directly by stepping on the handle through feet, two hands are liberated, and operation is facilitated.

The tray 3 is a disc structure, and the central shaft of the lifting device 2 is collinear with the center of the disc. Handle circumference rigid coupling can drive tray 3 through stirring the handle and rotate in the outside of tray 3, provides better stress point for tray 3.

The two lifting hooks 6 are distributed on two sides of the vehicle body 1, can be connected with lifting equipment, can transfer the position of the vehicle body 1 through the lifting equipment, and are suitable for installation positions where the ground is uneven and the vehicle body 1 cannot translate automatically.

When the large-scale equipment tensioning bolt is used, the nut is horizontally placed on the upper end face of the tray 3, the central shaft of the nut is collinear with the central shaft of the thrust bearing, then the vehicle body 1 is pushed or dragged to move by the hand handle 12, the vehicle tray 11 is moved to be right below the threaded end of the tensioning bolt of the large-scale equipment, and then the nut and the tensioning bolt are aligned, so that the central shaft of the nut is collinear with the central shaft of the tensioning bolt. And the travelling wheels are locked again to prevent the position of the vehicle body 1 from deviating. Then the lifting device 2, namely the handle of the hydraulic jack, is shifted to lift the piston of the hydraulic jack, the piston drives the tray 3 to move upwards, the tray 3 drives the nut to move upwards, and the nut is just matched with the threaded end of the tensioning bolt. Then the handle of the tray 3 is shifted to drive the tray 3 to rotate, the tray 3 drives the nut to rotate, and then the jack is slightly pressurized according to the thread lead angle, so that the nut is smoothly screwed into the tensioning bolt.

Example 2:

as shown in fig. 2, the difference from embodiment 1 is that the upper end surface of the tray 3 is provided with a groove adapted to the shape of the nut, and the center of the groove is collinear with the central axis of the bearing. The groove is a hexagonal groove, the inner diameter of the groove is 1-2 mm larger than the outer diameter of the nut, the nut can be placed in the groove and clamped, when the tray 3 is rotated, the tray 3 drives the nut to rotate, when the nut is screwed into the bolt, the groove can clamp the nut, the nut is prevented from sliding from the tray 3, and the screwing of the nut can be assisted within a certain range.

Example 3:

as shown in fig. 3, the difference from embodiment 1 is that a vertical sleeve 4 is inserted into the upper end surface of the tray 3, a deep hole adapted to the outer shape of the nut is formed in the upper end surface of the sleeve 4, the center of the deep hole is collinear with the central axis of the bearing, and a spring 5 is arranged in the deep hole. The sleeve 4 of this embodiment can rotate along with 3 synchronous rotations of tray, and deep hole cross section is regular hexagon, and its internal diameter is greater than nut external diameter 1-2 millimeters, can put into the downthehole back card of deep hole with the nut, and the nut is born the burden by spring 5, and when rotating tray 3, tray 3 drives the nut and rotates. When the nut is aligned and matched with the threaded end of the bolt, the lifting device 2 is continuously lifted, the lifting device 2 drives the tray 3 to move upwards, the tray 3 drives the sleeve 4 to move upwards, the nut is fixed because the bolt abuts against the nut, and the nut can be inserted into the deep hole to compress the spring 5 because the sleeve 4 moves upwards. Then the lifting process of the lifting device 2 is stopped, the nut can be pushed upwards towards the direction of the bolt under the action of the restoring elasticity of the spring 5, the tray 3 is rotated, the tray 3 drives the nut to rotate, the nut and the bolt rotate relatively, and the nut can be screwed into the bolt. Through sleeve 4 and spring 5, when making the screw in nut, only need rotate tray 3 alone can, need not to rise elevating gear 2 in step, further simplified the operating procedure.

The lower end face of the sleeve 4 is fixedly connected with a plurality of clamping blocks, and the tray 3 is provided with clamping grooves matched with the clamping blocks. The fixture block sets up two at least, distributes in the lower terminal surface bottom both sides of sleeve 4, blocks sleeve 4 through the draw-in groove, realizes grafting of tray 3 and sleeve 4, guarantees that sleeve 4 rotates along with tray 3 is synchronous. Since the sleeve 4 is detachable, it can be used for screwing work of nuts of different sizes by replacing the sleeve 4 of different sizes.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. The utility model provides a device is assisted in to straining bolt's nut which characterized in that: including automobile body (1) that has the walking wheel and elevating gear (2) of setting on automobile body (1) to and tray (3) through elevating gear (2) drive lift, tray (3) are connected with elevating gear (2) rotation.

2. The nut-assisted threading device of a tension bolt as claimed in claim 1, wherein: the vehicle body (1) comprises a transverse vehicle disc (11) and a hand handle (12) fixedly connected to one side of the vehicle disc (11), and four traveling wheels are fixedly connected to four corners of the lower end face of the vehicle disc (11).

3. The nut-assisted threading device of a tension bolt as claimed in claim 1, wherein: the lifting device (2) is a hydraulic jack, the lifting end of the hydraulic jack is connected with the tray (3) through a bearing, and an oil cylinder of the hydraulic jack penetrates through the vehicle body (1) to be fixedly connected.

4. The nut-assisted threading device of a tension bolt as claimed in claim 1, wherein: the tray (3) is circumferentially provided with a plurality of handles.

5. The nut-assisted threading device of a tension bolt as claimed in claim 4, wherein: the upper end face of the tray (3) is provided with a groove matched with the shape of the nut, and the center of the groove is collinear with the central shaft of the bearing.

6. The nut-assisted threading device of a tension bolt as claimed in claim 4, wherein: the upper end face of the tray (3) is spliced with a vertical sleeve (4), the upper end face of the sleeve (4) is provided with a deep hole matched with the appearance of the nut, the center of the deep hole is collinear with the central shaft of the bearing, and a spring (5) is arranged between the bottom of the deep hole and the nut.

7. The nut-assisted threading device of a tension bolt as claimed in claim 6, wherein: the lower end face of the sleeve (4) is fixedly connected with a plurality of clamping blocks, and the tray (3) is provided with clamping grooves matched with the clamping blocks.

8. The nut-assisted threading device of a tension bolt as claimed in claim 1, wherein: a hoisting hook (6) is arranged on the vehicle body (1).