Special-shaped nut fastening device for bulldozer

Abstract

The utility model discloses a bulldozer special-shaped nut fastening device, and belongs to the technical field of mounting tools, the bulldozer special-shaped nut fastening device comprises a chuck, a connecting rod, a connecting disc and a pneumatic wrench connector, the chuck is a circular ring, at least four protrusions are evenly distributed on the inner ring of the circular ring, the protrusions are connected with an outer side gear ring of a special-shaped nut in a clamped mode, and the pneumatic wrench connector is arranged on the outer side gear ring of the special-shaped nut. One end of the connecting rod is fixedly connected with the chuck, the end, away from the chuck, of the connecting rod is fixedly connected with the connecting disc, and a pneumatic wrench connector is arranged on the connecting disc and connected with a pneumatic wrench. According to the special-shaped nut, the protrusions of the chuck are clamped on the outer ring gear of the special-shaped nut, so that the at least four protrusions are clamped on the outer ring gear of the special-shaped nut at the same time, a plurality of contact points exist between the chuck and the special-shaped nut, the special-shaped nut is wrapped by the chuck, and the chuck is prevented from being disengaged from the special-shaped nut to the maximum extent; the problem that a hook-shaped wrench is prone to disengagement during installation is solved, and the safety performance during fastening is improved.

Description

Technical Field

[0001] The present application relates to the technical field of installation tooling, and in particular to a bulldozer special-shaped nut fastening device. Background Art

[0002] The statements in this section merely provide background technical information related to the present application and do not necessarily constitute prior art.

[0003] Various special-shaped nuts are encountered during the assembly process of the bulldozer. Some special-shaped nuts can be installed with a wrench, but some special-shaped nuts with gear edges are used on the bulldozer. This type of special-shaped nut requires a special hook wrench for installation. A protrusion on the hook wrench away from the grip end is inserted into the gear on the special-shaped nut with the gear edge for tightening. During the tightening process, because there is only one protrusion fixed, there are fewer fixing points, and it is easy for the configuration wrench to slip out during the tightening process of the special-shaped nut through manual tightening, causing damage to the special-shaped nut, and even causing serious injuries to the installer. Therefore, a tightening device that is more convenient and safe for installing special-shaped nuts is needed. Utility Model Content

[0004] In order to solve the above problems, the present application proposes a bulldozer special-shaped nut fastening device.

[0005] The purpose of the present application is to provide a bulldozer special-shaped nut fastening device, which clamps the protrusion of the chuck on the outer ring gear of the special-shaped nut so that at least four protrusions are clamped on the outer ring gear of the special-shaped nut at the same time, so that there are multiple contact points between the chuck and the special-shaped nut, and the chuck wraps the special-shaped nut to prevent the chuck from detaching from the special-shaped nut to the greatest extent, thereby solving the problem of hook-type wrenches easily detaching during installation and improving the safety performance during tightening.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A bulldozer special-shaped nut fastening device comprises: a chuck, a connecting rod, a connecting plate and a pneumatic wrench joint, wherein the chuck is a circular ring, the inner ring of the circular ring is evenly distributed with at least four protrusions, the protrusions are clamped with the outer gear ring of the special-shaped nut, one end of the connecting rod is fixedly connected to the chuck, the end of the connecting rod away from the chuck is fixedly connected to the connecting plate, the connecting plate is provided with a pneumatic wrench joint, and the pneumatic wrench joint is connected to the pneumatic wrench.

[0008] As further preferred, the connecting disk is a circular plate, the diameter of the circular plate is smaller than the inner diameter of the chuck, the connecting disk and the chuck are parallel to each other, the connecting disk is located on the center line of the chuck, and the pneumatic wrench connector is located at the center of the connecting disk.

[0009] As a further preference, the inner diameter of the circular ring is greater than or equal to the outer diameter of the special-shaped nut, and the length of the protrusion is equal to the tooth groove depth of the outer gear side of the special-shaped nut.

[0010] As a further preference, the length of the connecting rod is greater than the height of the special-shaped nut.

[0011] As a further preference, there are four connecting rods, the four connecting rods are evenly distributed on the sides of the chuck, the connecting rod is a bent rod, one end of the connecting rod is perpendicular to the chuck, and the connecting rod is fixed to the chuck by welding.

[0012] As a further preference, four slots are evenly distributed on the border of the connecting disk, and ends of four connecting rods away from the disk are respectively inserted into the four slots.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] 1. The present application clamps the protrusions of the chuck on the outer ring gear of the special-shaped nut, so that at least four protrusions are clamped on the outer ring gear of the special-shaped nut at the same time, so that there are multiple contact points between the chuck and the special-shaped nut, and the chuck wraps the special-shaped nut to prevent the chuck from detaching from the special-shaped nut to the greatest extent, thereby solving the problem that the hook-type wrench is easy to detach during installation and improving the safety performance during tightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present application;

[0016] Figure 2 This is the main view of this application;

[0017] Figure 3 A top view of the present application;

[0018] Wherein: 1. chuck, 2. connecting rod, 3. connecting plate, 4. pneumatic wrench connector, 5. protrusion. DETAILED DESCRIPTION

[0019] The present application is further described below in conjunction with the accompanying drawings and embodiments. Example 1

[0020] A bulldozer special-shaped nut fastening device, such as Figure 1-3 As shown, it includes: a chuck 1, a connecting rod 2, a connecting disk 3 and a pneumatic wrench connector 4, the chuck 1 is a circular ring, the inner ring of the circular ring is evenly distributed with at least four protrusions 5, the protrusions 5 are clamped with the outer gear ring of the special-shaped nut, one end of the connecting rod 2 is fixedly connected to the chuck 1, the end of the connecting rod 2 away from the chuck 1 is fixedly connected to the connecting disk 3, the connecting disk 3 is provided with a pneumatic wrench connector 4, and the pneumatic wrench connector 4 is connected to the pneumatic wrench.

[0021] like Figure 1 As shown, the connecting disk 3 is a circular plate, the diameter of the circular plate is smaller than the inner diameter of the chuck 1, the connecting disk 3 and the chuck 1 are parallel to each other, the connecting disk 3 is located on the center line of the chuck 1, and the pneumatic wrench connector 4 is located at the center of the connecting disk 3, so that when the chuck 1 is installed on the outer ring gear of the special-shaped nut, it will not be blocked by the connecting disk 3, which is convenient for use.

[0022] The inner diameter of the ring is greater than or equal to the outer diameter of the special-shaped nut, and the length of the protrusion 5 is equal to the tooth groove depth of the outer gear side of the special-shaped nut, so that the ring can be covered on the outer ring gear of the special-shaped nut, the connection is tighter and the installation is convenient.

[0023] The length of the connecting rod 2 is greater than the height of the special-shaped nut, so that the distance between the chuck 1 and the connecting plate 3 will be greater than the height of the special-shaped nut, which facilitates the installation of the fastening device.

[0024] like Figure 3 As shown, there are four connecting rods 2, and the four connecting rods 2 are evenly distributed on the sides of the chuck 1. The connecting rod 2 is a bent rod, which can increase the field of view between the connecting disk 3 and the chuck 1, so as to facilitate finding the position of the special-shaped nut when installing the chuck 1. One end of the connecting rod 2 is perpendicular to the chuck 1, and the connecting rod 2 and the chuck 1 are fixed by welding.

[0025] like Figure 3 As shown, four slots are evenly distributed on the boundary of the connecting disk 3, and the ends of the four connecting rods 2 away from the chuck 1 are respectively inserted into the four slots. In this way, the connecting rods 2 are more accurately installed on the connecting disk 3 by means of a snap connection, thereby improving the overall installation efficiency of the fastening device.

[0026] like Figure 2 As shown, the thickness of the connecting plate 3 is equal to the thickness of the chuck 1, which is convenient for installation.

[0027] In the technical solution of the present application, the protrusion 5 of the chuck 1 is clamped on the outer ring gear of the special-shaped nut, so that at least four protrusions 5 are clamped on the outer ring gear of the special-shaped nut at the same time, so that there are multiple contact points between the chuck 1 and the special-shaped nut. In the process of tightening the special-shaped nut, there is no need to worry about the chuck 1 being detached from the special-shaped nut, thereby solving the problem of the hook-type wrench being easily detached during installation.

[0028] After installation, insert the output end of the pneumatic wrench into the pneumatic wrench connector 4, and start the pneumatic wrench directly. In this way, the pneumatic wrench rotates to drive the connecting disk 3 to rotate. The connecting disk 3 passes through the center position of the chuck 1, and the connecting disk 3 drives the chuck 1 to rotate through the connecting rod 2. The chuck 1 and the connecting disk 3 can form a concentric circle rotation. In this way, the chuck 1 can directly drive the special-shaped nut to rotate and tighten. In this way, the installation of the special-shaped nut can be completed, the assembly efficiency is improved, the labor intensity of manual tightening is saved, the operation is safer, and the problem that the hook-type wrench cannot reach the tightening torque during the manual rotation process can be solved.

[0029] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A bulldozer special-shaped nut fastening device, characterized in that it comprises: A chuck, a connecting rod, a connecting plate and a pneumatic wrench joint, wherein the chuck is a circular ring, the inner ring of the circular ring is evenly distributed with at least four protrusions, the protrusions are clamped with the outer gear ring of the special-shaped nut, one end of the connecting rod is fixedly connected to the chuck, the end of the connecting rod away from the chuck is fixedly connected to the connecting plate, the connecting plate is provided with a pneumatic wrench joint, and the pneumatic wrench joint is connected to the pneumatic wrench.

2. A bulldozer special-shaped nut fastening device as claimed in claim 1, characterized in that: The connecting disk is a circular plate, the diameter of which is smaller than the inner diameter of the chuck, the connecting disk and the chuck are parallel to each other, the connecting disk is located on the center line of the chuck, and the pneumatic wrench connector is located at the center of the connecting disk.

3. A bulldozer special-shaped nut fastening device as claimed in claim 1, characterized in that: The inner diameter of the circular ring is greater than or equal to the outer diameter of the special-shaped nut, and the length of the protrusion is equal to the tooth groove depth of the outer gear side of the special-shaped nut.

4. A bulldozer special-shaped nut fastening device as claimed in claim 1, characterized in that: The length of the connecting rod is greater than the height of the special-shaped nut.

5. A bulldozer special-shaped nut fastening device as claimed in claim 1, characterized in that: There are four connecting rods, which are evenly distributed on the side of the chuck. The connecting rod is a bent rod, one end of which is perpendicular to the chuck, and the connecting rod is fixed to the chuck by welding.

6. A bulldozer special-shaped nut fastening device as claimed in claim 5, characterized in that: Four slots are evenly distributed on the border of the connection disk, and ends of four connection rods away from the disk are respectively inserted into the four slots.

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