Adjustable scraper chain bolt fastening device

Abstract

The utility model relates to the field of mechanical installation and production site tools, in particular to an adjustable scraper chain bolt fastening device. The scraper chain bolt fastening device is composed of a control mechanism, a positioning mechanism and a supporting mechanism. The control mechanism controls the positioning mechanism to move up and down according to the lever principle, so that an impact wrench of the positioning mechanism can sleeve or loosen a scraper chain bolt for tightening; the positioning mechanism is mainly used for fixing three impact wrenches to ensure that the impact wrenches work simultaneously, circular holes with different distances are designed in an upper fixing plate and a lower fixing plate of the positioning mechanism to adjust the relative distances of the impact wrenches, and the different distances correspond to scraper chains with different specifications; the supporting mechanism serves as a frame body and is responsible for moving and supporting the whole device. The device is easy to manufacture, low in cost, easy to install and convenient to operate, greatly improves the working efficiency, reduces the labor intensity and is suitable for fastening scraper chain bolts of various specifications.

Description

Technical Field

[0001] The utility model relates to the field of on-site tooling for mechanical product installation, in particular to an adjustable bolt fastening device for a scraper chain. Background Art

[0002] The scraper chain for mining mainly consists of three parts: scraper, beam and chain, which are connected by bolts. The current method of tightening the bolts of the scraper chain is to install the scraper, beam, chain and bolts in place in sequence, and then tighten the bolts one by one with a handheld impact wrench. This working method has low labor efficiency, high work intensity and low automation level.

[0003] The scraper chain bolt tightening device is a device that can tighten multiple scraper chain bolts at one time to improve the work efficiency of workers. Since the distances between the bolts of scraper chains of different specifications are different, in order to adapt to scraper chains of different specifications, the scraper chain bolt tightening device needs to be designed with an adjustable function. Utility Model Content

[0004] The purpose of this utility model patent is to provide an adjustable scraper chain bolt tightening device, which can operate multiple impact wrenches to work simultaneously and meet the needs of tightening scraper chain bolts of different specifications.

[0005] The purpose of this utility model patent is achieved through the following technical solutions:

[0006] The bolt fastening device of the scraper chain is mainly composed of three major mechanisms, namely: control mechanism, positioning mechanism, and support mechanism. Among them, the control mechanism is mainly composed of a lever, a pin, a rod, a connecting block, a spring, a positioning sleeve and a connecting rod. Its function is to control the up and down movement of the positioning mechanism through the principle of leverage; the positioning mechanism is mainly composed of an impact wrench, an upper fixing plate, a fastening sleeve, a lower fixing plate and bolts. Its function is to fix the three impact wrenches so that they can work at the same time and adjust the distance between the impact wrenches; the support mechanism is a frame with rollers welded from hollow steel pipes, which is responsible for the connection, support and movement of the entire device. Beneficial Effects

[0007] At present, there is no related device that can tighten multiple scraper chain bolts at one time. Only a single impact wrench can be used manually to tighten one scraper chain bolt at a time, which is inefficient, labor-intensive and low in automation. The utility model device is easy to install and operate, and can tighten multiple scraper chain bolts at one time, greatly improving work efficiency and reducing labor intensity.

[0008] The following is a complete and clear description of the technical solution implemented by the utility model in conjunction with the accompanying drawings: BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1It is a side view of the device of the utility model;

[0010] Figure 2 It is the control mechanism diagram;

[0011] Figure 3 To locate the mechanism diagram;

[0012] In the figure: 1. Control mechanism 11. Lever 12. Pin 13. Rod 14. Connecting block 15. Spring 16. Positioning sleeve 17. Connecting rod 2. Positioning mechanism 21. Upper fixing plate 22. Fastening sleeve 23. Impact wrench 24. Lower fixing plate 3. Support mechanism. DETAILED DESCRIPTION

[0013] like Figure 1 , Figure 2 , Figure 3 As shown, the bolt fastening device for the scraper chain is mainly composed of three major mechanisms, namely: control mechanism 1, positioning mechanism 2, and support mechanism 3. Among them, the control mechanism 1 is composed of a lever 11, a pin 12, a rod 13, a connecting block 14, a spring 15, a positioning sleeve 16 and a connecting rod 17; the positioning mechanism 2 is composed of an upper fixing plate 21, a fastening sleeve 22, an impact wrench 23, a lower fixing plate 24 and bolts. Before working, the position of the impact wrench 23 is adjusted and fixed according to the specifications of the scraper chain; the support mechanism 3 is a frame with rollers welded from hollow steel pipes.

[0014] First, in the non-working state, the spring 15 makes the positioning mechanism 1 suspended above the scraper chain. When working, push the scraper chain bolt fastening device above the scraper chain, lift the lever 11 upward to compress the spring 15, drive the connecting rod 17, and the connecting rod 17 pushes the positioning mechanism 2 downward, so that the three impact wrenches 23 are simultaneously downward and cover the bolts of the scraper chain to tighten. After the work is completed, release the lever 11, the spring 15 naturally bounces up, and drives the positioning mechanism 2 to move upward, so that the impact wrenches 23 are all separated from the scraper chain and return to the initial position. At this point, a set of scraper chain bolts are tightened, and the entire device is pushed to the next working position, and the work is completed in sequence in a cycle.

Claims

1. An adjustable bolt fastening device for a scraper chain, characterized in that: The main device is composed of a control mechanism (1), a positioning mechanism (2) and a support mechanism (3); the control mechanism (1) is composed of a lever (11), a pin (12), a rod (13), a connecting block (14), a spring (15), a positioning sleeve (16) and a connecting rod (17), wherein three connecting blocks (14) are sequentially inserted into the rod (13) and respectively connected to three connecting rods (17); a spring (15) is sleeved on the connecting rod (17); and the spring (15) is clamped between the connecting block (14) and the positioning sleeve. (16) in the middle; the positioning mechanism (2) is composed of an upper fixing plate (21), a lower fixing plate (24) and a fastening sleeve (22) which fix three impact wrenches (23) side by side through bolts and nuts, and is connected to the connecting rod (17) of the control mechanism (1); the supporting mechanism (3) is a frame body welded from a hollow steel pipe, connected to the control mechanism (1) through a pin shaft (12) and a positioning sleeve (16), and is responsible for supporting and connecting the entire device, and two fixed wheels and two universal wheels are responsible for the movement of the device.

Images