CN218657718U

CN218657718U - Nut fastening device

Info

Publication number: CN218657718U
Application number: CN202223097629.1U
Authority: CN
Inventors: 邓海刚; 孙建成; 尹燕政; 王正; 姜麟澍
Original assignee: Shandong Siasun Industrial Software Research Institute Co Ltd
Current assignee: Shandong Siasun Industrial Software Research Institute Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21
Anticipated expiration: 2032-11-22

Abstract

The utility model belongs to the technical field of the connecting piece is fixed, specifically speaking is a nut fastener, including base plate, hollow rotating shaft and transmission structure are installed respectively on the base plate, and the cavity pore has been seted up along length direction to the inboard of hollow rotating shaft, and the equal opening in both ends of cavity pore, the interior pore wall shape in cavity pore agrees with the outer peripheral face shape of treating mounting nut mutually, and the output of transmission structure drives hollow rotating shaft and rotates around the axial centerline of hollow rotating shaft, and the input of transmission structure is driven by external driving piece A. The utility model discloses a setting of the transmission structure that main drive axle, transmission shaft and each bevel gear constitute can provide the space for connecting the bulky external driving piece A of body, and need not to make the axial centerline of external driving piece A's drive end and the axial centerline collineation of hollow rotating shaft, realizes the nut of screwing up under the special operating mode, and hollow rotating shaft can overlap and drive the nut in the long screw rod outside and screw up, effectively is applicable to the nut fastening of long screw rod.

Description

Nut fastening device

Technical Field

The utility model belongs to the technical field of the connecting piece is fixed, specifically speaking are nut fastener.

Background

The nut is a part for tightly connecting mechanical equipment, bolts or screws with the same specification are connected together through threads, and the nut is used in cooperation with the bolts, the screws and the like to achieve the effect of connecting and fastening parts. In some large-scale devices or parts (such as the base of the wind turbine), a large number of nuts need to be installed and tightened, so that a nut fastening device is indispensable. Many times, the large-scale device or part (such as the base of the wind power generator) is provided with a screw rod with an overlong length (such as a length exceeding 10 cm). In the existing nut fastening device, the sleeve directly connected with the nut is generally of a structure with one end open and the other end closed, and the axial center line of the sleeve and the axial center line of the driving end of the driving part of the nut fastening device are generally arranged in a collinear manner, so that the function of fastening the nut on the long screw rod is not convenient to realize.

SUMMERY OF THE UTILITY MODEL

The problem of the inconvenient nut fastening that is used for the long screw rod to current nut fastener, the utility model aims to provide a nut fastener.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a nut fastener, includes base plate, hollow rotating shaft and transmission structure install respectively in on the base plate, hollow pore has been seted up along length direction to hollow rotating shaft's inboard, the equal opening in both ends of hollow pore, hollow pore's interior pore wall shape agrees with the outer peripheral face shape of treating mounting nut mutually, transmission structure's output drives hollow rotating shaft rotates around hollow rotating shaft's axial direction, transmission structure's input is driven by external driving piece A, the base plate is driven by external driving piece B, along the length direction removal of the screw rod of treating mounting nut.

The base plate is convexly provided with a plurality of hollow rotating shaft supporting seats, and the hollow rotating shafts are respectively and rotatably connected with the hollow rotating shaft supporting seats.

A bevel gear D is mounted on the peripheral surface of the hollow rotating shaft, and one end of the hollow rotating shaft extends towards one side of the substrate;

the transmission structure comprises a main driving shaft, a transmission shaft, a bevel gear A, a bevel gear B and a bevel gear C, the main driving shaft and the transmission shaft are respectively rotatably installed on the substrate, the bevel gear A is installed on the peripheral surface of the main driving shaft, the bevel gear B and the bevel gear C are respectively installed at two ends of the transmission shaft, and the bevel gear B is meshed with the bevel gear A;

the bevel gear C is used as the output end of the transmission structure and meshed with the bevel gear D, and one end of the main driving shaft is used as the input end of the transmission structure, is driven by an external driving piece A and extends to the other side of the substrate.

The axial center line of the main driving shaft is parallel to the axial center line of the hollow rotating shaft.

The axial center line of the main driving shaft is perpendicular to the axial center line of the transmission shaft.

The base plate is convexly provided with a plurality of main driving shaft supporting seats, and the main driving shafts are respectively and rotatably connected with the main driving shaft supporting seats.

The base plate is convexly provided with a plurality of transmission shaft supporting seats, and the transmission shafts are respectively and rotatably connected with the transmission shaft supporting seats.

One end of the main driving shaft is connected with one end of a universal joint, and the other end of the universal joint is connected with an external driving piece A.

The bevel gear D is characterized in that a hollow rotating shaft connecting hole channel is formed in the inner side of the bevel gear D along the length direction, two ends of the hollow rotating shaft connecting hole channel are open, the shape of the inner hole wall of the hollow rotating shaft connecting hole channel is matched with the shape of the outer peripheral surface of the hollow rotating shaft, and the hollow rotating shaft penetrates through the hollow rotating shaft connecting hole channel.

The bevel gear D is divided into a bevel gear surface part and a cylindrical surface part which are connected together along the length direction, the bevel gear surface part of the bevel gear D is meshed with the bevel gear C, a plurality of mounting through holes used for penetrating through fixing screws are formed in the cylindrical surface part of the bevel gear D along the circumferential direction, and each fixing screw penetrates through one corresponding mounting through hole and is in threaded connection with the outer circumferential surface of the hollow rotating shaft.

The utility model discloses an advantage does with positive effect:

1. the utility model can provide space for the external driving piece A with larger connecting volume by arranging the transmission structure consisting of the main driving shaft, the transmission shaft and the bevel gears, without making the axial central line of the driving end of the external driving piece A and the axial central line of the hollow rotating shaft collinear, and realizes the nut screwing under special working conditions; and the hollow rotating shaft can be sleeved outside the long screw to drive the nut to be screwed, so that the nut tightening device is effectively suitable for nut tightening of the long screw.

2. The utility model discloses a setting of universal joint is convenient for connect external driving piece A, makes external driving piece A can stably drive the main drive axle and rotate, also can use when the axial centerline of external driving piece A's drive end is not with the axial centerline collineation of main drive axle, more is applicable to complicated installation scene.

3. The utility model discloses a cylindrical surface portion and set screw's that are equipped with the installation through-hole cooperation setting, the dismouting between the bevel gear D of being convenient for and the hollow rotating shaft is connected, can change the hollow rotating shaft that has the cavity pore that corresponds according to the different models of the nut of treating screwing up, and the suitability is strong.

Drawings

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

FIG. 2 is a schematic sectional view of the hollow shaft of the present invention;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is a schematic view of the position of the hollow shaft before the nut is tightened on the long screw;

fig. 5 is a schematic view showing the position of the hollow rotating shaft after the nut is screwed on the long screw.

In the figure: 1 is a base plate, 101 is a hollow rotating shaft supporting seat, 102 is a main driving shaft supporting seat, 103 is a transmission shaft supporting seat, 2 is a hollow rotating shaft, 201 is a hollow channel, 3 is a main driving shaft, 4 is a transmission shaft, 5 is a bevel gear A, 6 is a bevel gear B, 7 is a bevel gear C, 8 is a bevel gear D, 801 is a hollow rotating shaft connecting channel, 9 is a universal joint and 10 is a fixing screw;

001 is a screw rod of the nut to be installed, and 002 is the nut to be installed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-5.

A nut fastening device is disclosed, as shown in fig. 1-5, the nut fastening device comprises a substrate 1, a hollow rotating shaft 2 and a transmission structure in the embodiment, the hollow rotating shaft 2 and the transmission structure are respectively installed on the substrate 1, a hollow pore channel 201 is formed in the inner side of the hollow rotating shaft 2 along the length direction, two ends of the hollow pore channel 201 are both open, the shape of the inner pore wall of the hollow pore channel 201 is matched with the shape of the outer peripheral surface of a nut 002 to be installed, the output end of the transmission structure drives the hollow rotating shaft 2 to rotate around the axial center line of the hollow rotating shaft 2, the input end of the transmission structure is driven by an external driving part A, the substrate 1 is driven by an external driving part B and moves along the length direction of a screw 001 of the nut to be installed. In this embodiment, the inner hole wall of the hollow hole 201 is hexagonal, and is suitable for tightening a hexagonal nut. The base plate 1 can be provided with a lifting lug convenient for lifting and moving or a mounting opening convenient for fixed mounting; the substrate 1 is mounted in a conventional manner.

Specifically, in the present embodiment, a bevel gear D8 is attached to the outer peripheral surface of the hollow rotating shaft 2, and one end of the hollow rotating shaft 2 extends toward one side of the substrate 1. The transmission structure in this embodiment includes a main drive shaft 3, a transmission shaft 4, a bevel gear A5, a bevel gear B6, and a bevel gear C7, where the main drive shaft 3 and the transmission shaft 4 are respectively rotatably mounted on the substrate 1, the bevel gear A5 is mounted on the outer peripheral surface of the main drive shaft 3, the bevel gear B6 and the bevel gear C7 are respectively mounted at two ends of the transmission shaft 4, and the bevel gear B6 is meshed with the bevel gear A5. In this embodiment, the bevel gears A5, B6 and C7 are fixed to the corresponding main driving shaft 3 or the transmission shaft 4 by screws or pins, respectively.

The bevel gear C7 is used as the output end of the transmission structure and meshed with the bevel gear D8, and one end of the main driving shaft 3 is used as the input end of the transmission structure, is driven by the external driving piece A and extends towards the other side of the substrate 1. Namely, the input end of the transmission structure and one end of the hollow rotating shaft 2 are positioned at two opposite sides. Through the arrangement of the transmission structure consisting of the main driving shaft 3, the transmission shaft 4 and the bevel gears, a space can be provided for the external driving part A with a large connecting volume, the axial center line of the driving end of the external driving part A and the axial center line of the hollow rotating shaft 2 are not required to be collinear, and the nut is screwed under special working conditions.

Specifically, in the present embodiment, the axial center line of the main drive shaft 3 is parallel to the axial center line of the hollow rotating shaft 2, and the axial center line of the main drive shaft 3 is perpendicular to the axial center line of the transmission shaft 4, so that the design and installation are easy.

Specifically, in the present embodiment, two hollow rotation shaft support seats 101 are convexly disposed on the substrate 1, and the hollow rotation shaft 2 is respectively rotatably connected to each hollow rotation shaft support seat 101; two main driving shaft supporting seats 102 are convexly arranged on the base plate 1, and the main driving shaft 3 is respectively and rotatably connected with each main driving shaft supporting seat 102; two transmission shaft supporting seats 103 are convexly arranged on the base plate 1, and the transmission shaft 4 is respectively and rotatably connected with each transmission shaft supporting seat 103. Each supporting seat can play effectual supporting role to each axle respectively, and each supporting seat all adopts prior art with the rotation connected mode of each axle, and the axial spacing mode of each axle on each supporting seat adopts through prior art such as shaft shoulder or retaining ring.

Specifically, in the present embodiment, one end of the main drive shaft 3 is connected to one end of the universal joint 9, and the other end of the universal joint 9 is connected to the external drive member a. Through the setting of universal joint 9, be convenient for connect external driving piece A, make external driving piece A can stably drive main drive axle 3 and rotate, also can use when the axial centerline of external driving piece A's drive end is not with the axial centerline collineation of main drive axle 3, more is applicable to complicated installation scene. In the embodiment, the external driving part A and the external driving part B can both adopt a mechanical arm or a mechanical arm in the prior art, automatic assembly can be realized, and the control method of the external driving part A and the external driving part B adopts the prior art.

Specifically, in this embodiment, a hollow rotating shaft connecting channel 801 is formed in the inner side of the bevel gear D8 along the length direction, two ends of the hollow rotating shaft connecting channel 801 are open, the shape of the inner hole wall of the hollow rotating shaft connecting channel 801 is matched with the shape of the outer peripheral surface of the hollow rotating shaft 2, the hollow rotating shaft 2 penetrates through the hollow rotating shaft connecting channel 801, the bevel gear D8 is divided into a bevel gear portion and a cylindrical surface portion which are connected together along the length direction, the bevel gear portion of the bevel gear D8 is meshed with the bevel gear C7, four mounting through holes for penetrating through the fixing screws 10 are uniformly formed in the cylindrical surface portion of the bevel gear D8 along the circumferential direction, and each fixing screw 10 penetrates through a corresponding mounting through hole and is connected with the outer peripheral surface of the hollow rotating shaft 2 through threads. Through the cooperation setting of the cylindrical surface portion that is equipped with the installation through-hole and set screw 10, the dismouting between the bevel gear D8 of being convenient for and hollow shaft 2 is connected, can be according to the different models of the nut of treating screwing up, changes hollow shaft 2 that has corresponding hollow pore 201, and the suitability is strong.

The working principle is as follows:

as shown in fig. 4 and 5, when in use, the nut 002 to be installed is pre-screwed at one end of the screw 001 to be installed with the nut, the hollow rotating shaft 2 is sleeved outside the screw 001 to be installed with the nut, the shape of the inner hole wall of the hollow pore channel 201 is matched with the shape of the outer peripheral surface of the nut 002 to be installed, then the external driving member a is started, the hollow rotating shaft 2 is driven to rotate through the transmission structure, the nut to be installed inside the hollow rotating shaft 2 is driven to rotate and move along the length direction of the screw 001 to be installed with the nut and is screwed, and the external driving member B can be simultaneously controlled to drive the screw 001 to be installed with the nut to move along the length direction of the screw 001 to be installed with the nut to be adapted to the screwing of the long screw; through the arrangement of a transmission structure consisting of the main driving shaft 3, the transmission shaft 4 and the bevel gears, a space can be provided for the external driving part A with a large connecting volume, the axial center line of the driving end of the external driving part A and the axial center line of the hollow rotating shaft 2 are not required to be collinear, the nut can be screwed under special working conditions, the hollow rotating shaft 2 can be sleeved outside the long screw to drive the nut to be screwed, one end of the long screw can penetrate out of the hollow rotating shaft 2, and the nut fastening device is effectively suitable for nut fastening of the long screw; the universal joint 9 is convenient to connect with the external driving piece A, so that the external driving piece A can stably drive the main driving shaft 3 to rotate, and the universal joint can be used when the axial center line of the driving end of the external driving piece A is not collinear with the axial center line of the main driving shaft 3, and is more suitable for complex installation scenes; through the cooperation setting of the cylindrical surface portion that is equipped with the installation through-hole and set screw 10, the dismouting between the bevel gear D8 of being convenient for and hollow shaft 2 is connected, can be according to the different models of the nut of treating screwing up, changes hollow shaft 2 that has corresponding hollow pore 201, and the suitability is strong.

Claims

1. A nut fastening device characterized in that: including base plate (1), hollow rotating shaft (2) and transmission structure install respectively in on base plate (1), cavity pore (201) have been seted up along length direction to the inboard of hollow rotating shaft (2), the equal opening in both ends of cavity pore (201), the interior pore wall shape of cavity pore (201) agrees with mutually with the outer peripheral face shape of treating mounting nut, the output of transmission structure drives hollow rotating shaft (2) rotates around the axial centerline of hollow rotating shaft (2), the input of transmission structure is driven by external driving piece A, base plate (1) is driven by external driving piece B, along the length direction removal of the screw rod of treating mounting nut.

2. A nut tightening device according to claim 1, wherein: the base plate (1) is convexly provided with a plurality of hollow rotating shaft supporting seats (101), and the hollow rotating shafts (2) are respectively and rotatably connected with the hollow rotating shaft supporting seats (101).

3. A nut tightening device according to claim 1, wherein: a bevel gear D (8) is mounted on the outer peripheral surface of the hollow rotating shaft (2), and one end of the hollow rotating shaft (2) extends towards one side of the substrate (1);

the transmission structure comprises a main driving shaft (3), a transmission shaft (4), a bevel gear A (5), a bevel gear B (6) and a bevel gear C (7), wherein the main driving shaft (3) and the transmission shaft (4) are respectively rotatably installed on the substrate (1), the bevel gear A (5) is installed on the peripheral surface of the main driving shaft (3), the bevel gear B (6) and the bevel gear C (7) are respectively installed at two ends of the transmission shaft (4), and the bevel gear B (6) is meshed with the bevel gear A (5);

the bevel gear C (7) is used as an output end of the transmission structure and meshed with the bevel gear D (8), one end of the main driving shaft (3) is used as an input end of the transmission structure, is driven by an external driving piece A and extends towards the other side of the substrate (1).

4. A nut tightening device according to claim 3, wherein: the axial center line of the main driving shaft (3) is parallel to the axial center line of the hollow rotating shaft (2).

5. A nut tightening device according to claim 4, wherein: the axial center line of the main driving shaft (3) is perpendicular to the axial center line of the transmission shaft (4).

6. A nut tightening device according to claim 3, wherein: the base plate (1) is convexly provided with a plurality of main driving shaft supporting seats (102), and the main driving shafts (3) are respectively connected with the main driving shaft supporting seats (102) in a rotating mode.

7. A nut tightening device according to claim 3, wherein: the base plate (1) is convexly provided with a plurality of transmission shaft supporting seats (103), and the transmission shaft (4) is respectively and rotatably connected with each transmission shaft supporting seat (103).

8. A nut tightening device according to claim 3, wherein: one end of the main driving shaft (3) is connected with one end of a universal joint (9), and the other end of the universal joint (9) is connected with an external driving piece A.

9. A nut tightening device according to claim 3, wherein: the bevel gear D (8) is characterized in that a hollow rotating shaft connecting channel (801) is formed in the inner side of the bevel gear D (8) along the length direction, two ends of the hollow rotating shaft connecting channel (801) are open, the shape of the inner hole wall of the hollow rotating shaft connecting channel (801) is matched with the shape of the outer peripheral surface of the hollow rotating shaft (2), and the hollow rotating shaft (2) penetrates through the hollow rotating shaft connecting channel (801).

10. A nut tightening device according to claim 9, wherein: the bevel gear D (8) is divided into a bevel gear face portion and a cylindrical face portion which are connected together along the length direction, the bevel gear face portion of the bevel gear D (8) is meshed with the bevel gear C (7), a plurality of mounting through holes used for penetrating fixing screws (10) are formed in the cylindrical face portion of the bevel gear D (8) along the circumferential direction, and each fixing screw (10) penetrates through one corresponding mounting through hole and is in threaded connection with the outer circumferential face of the hollow rotating shaft (2).