A bolt hydraulic tightening system

Abstract

This utility model discloses a bolt hydraulic tightening system, including an ultra-high pressure manual pump, a connecting hose, and a hydraulic tensioner. The connecting hose has ultra-high pressure connectors at both ends. The outlet port of the ultra-high pressure manual pump is connected to one end of the connecting hose via the ultra-high pressure connectors. The other end of the connecting hose is connected to a constant pressure distributor via the ultra-high pressure connectors. The constant pressure distributor is connected to the hydraulic tensioner via the connecting hose. By installing a pressure regulating valve and a pressure gauge on the constant pressure distributor, different hydraulic pressures need to be applied to the hydraulic tensioner for different bolt types. By adjusting the pressure regulating valve, different distributors provide different hydraulic pressures to the corresponding hydraulic tensioners, thereby enabling simultaneous tightening of bolts of different types.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic equipment technology, specifically a bolt hydraulic tightening system. Background Technology

[0002] Bolt connections are a common method of connection in mechanical structures. The tightening force required for general mechanical connections is not large, and manual tightening can meet the requirements. However, some mechanical equipment with high fastening requirements needs to use hydraulic tightening devices to tighten the bolts. A mechanical piece of equipment needs to tighten a large number of bolts, and the tightening force required for each bolt is different. When using a bolt hydraulic tightening device to tighten multiple bolts, over-tightening or over-loosening may occur. Different tightening forces need to be applied to different bolts to ensure assembly quality. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a bolt hydraulic tightening system to solve the problem of applying different tightening forces to different bolts mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bolt hydraulic tightening system, comprising an ultra-high pressure manual pump, a connecting hose, and a hydraulic tensioner. The connecting hose is provided with ultra-high pressure connectors at both ends. The outlet port of the ultra-high pressure manual pump is connected to one end of the connecting hose through the ultra-high pressure connector. The other end of the connecting hose is connected to a constant pressure distributor through the ultra-high pressure connector. The constant pressure distributor is connected to the hydraulic tensioner through the connecting hose.

[0007] The constant pressure splitter includes a hydraulic inlet, a splitter housing, a splitter compartment, a pressure regulating valve, a constant pressure gauge, and a hydraulic outlet. The splitter housing has a hydraulic inlet at one end, which is fixedly connected to an ultra-high pressure connector. The splitter housing is divided into several splitter compartments. One end of each splitter compartment is connected to the hydraulic inlet, and the other end is connected to the hydraulic outlet. A pressure regulating valve is installed in each splitter compartment, and a constant pressure gauge is fixed on the splitter compartment at the front end of the pressure regulating valve.

[0008] As a preferred embodiment of this invention, the pressure regulating valve has a pointer engraved on its rotating handle, and the pointer points to the pressure gauge.

[0009] As a preferred embodiment of the present invention, a fixing mechanism is provided outside the splitter housing. The fixing mechanism includes a fixing frame and a fixing base. The fixing frame is fitted onto the outer surface of the splitter housing, and a fixing base is welded below the fixing frame. Several suction cups are provided at the bottom of the fixing base.

[0010] As a preferred embodiment of this invention, a rubber gasket is provided on the inner side of the fixing frame.

[0011] As a preferred embodiment of this invention, a total pressure gauge is provided at the outlet port of the ultra-high pressure manual pump.

[0012] As a preferred embodiment of this invention, the hydraulic tensioner is provided with several ports respectively connected to corresponding hydraulic outlets.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model installs a pressure regulating valve and a pressure gauge on a constant pressure distributor. The pressure regulating valve is adjusted so that its rotation angle corresponds to the scale on the pressure gauge. When dealing with different types of bolts, different hydraulic pressures need to be applied to the hydraulic tensioner. By adjusting the pressure regulating valve, different distributors provide different hydraulic pressures to the corresponding hydraulic tensioners, thereby enabling the simultaneous tightening of bolts of different types.

[0015] 2. This utility model uses a fixing mechanism installed on the outside of the splitter housing. The fixing frame wraps around the splitter housing, and rubber gaskets are installed inside the fixing frame to reduce the vibration of the constant pressure splitter when the ultra-high pressure manual pump is working, thus protecting the constant pressure splitter. At the same time, suction cups are installed at the bottom of the fixing base, and the suction cups generate adsorption force to fix the constant pressure splitter, making the equipment more stable during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall planar structure of this utility model;

[0017] Figure 2 This is an enlarged planar structural schematic diagram of the constant voltage splitter of this utility model;

[0018] Figure 3 This is an enlarged structural schematic diagram of the fixing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the planar structure of the fixed base of this utility model.

[0020] In the diagram: 1. Ultra-high pressure manual pump; 101. Main pressure gauge; 2. Connecting hose; 3. Hydraulic tensioner; 4. Ultra-high pressure connector; 5. Constant pressure distributor; 501. Hydraulic inlet; 502. Distributor housing; 503. Distributor compartment; 504. Pressure regulating valve; 505. Constant pressure gauge; 506. Hydraulic outlet; 507. Pointer; 6. Fixing mechanism; 601. Fixing frame; 602. Fixing base; 603. Suction cup; 604. Rubber gasket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, this utility model provides a bolt hydraulic tightening system, including an ultra-high pressure manual pump 1, a connecting hose 2 and a hydraulic tensioner 3. The connecting hose 2 is provided with ultra-high pressure connectors 4 at both ends. The outlet port of the ultra-high pressure manual pump 1 is connected to one end of the connecting hose 2 through the ultra-high pressure connectors 4. The other end of the connecting hose 2 is connected to a constant pressure distributor 5 through the ultra-high pressure connectors 4. The constant pressure distributor 5 is connected to the hydraulic tensioner 3 through the connecting hose 2.

[0023] refer to Figure 1-2 The constant pressure splitter 5 includes a hydraulic inlet 501, a splitter housing 502, a splitter compartment 503, a pressure regulating valve 504, a constant pressure gauge 505, and a hydraulic outlet 506. The splitter housing 502 has a hydraulic inlet 501 at one end, which is fixedly connected to the ultra-high pressure connector 4. The splitter housing 502 is divided into several splitter compartments 503. One end of the splitter compartment 503 is connected to the hydraulic inlet 501, and the other end is connected to the hydraulic outlet 506. The pressure regulating valve 504 is provided in the splitter compartment 503, and the constant pressure gauge 505 is fixed on the splitter compartment 503 at the front end of the pressure regulating valve 504.

[0024] By installing a pressure regulating valve 504 and a pressure gauge 505 on the pressure regulating distributor 5, the rotation angle of the pressure regulating valve 504 is adjusted to correspond to the scale on the pressure gauge 505. When dealing with different types of bolts, different hydraulic pressures need to be applied to the hydraulic tensioner 3. By adjusting the pressure regulating valve 504, different distributor compartments 503 provide different hydraulic pressures to the corresponding hydraulic tensioner 3, thereby enabling the tightening operation of different types of bolts at the same time.

[0025] refer to Figure 3-4 A fixing mechanism 6 is provided outside the splitter housing 502. The fixing mechanism 6 includes a fixing frame 601 and a fixing base 602. The fixing frame 601 is fitted on the outer surface of the splitter housing 502. The fixing base 602 is welded below the fixing frame 601. Several suction cups 603 are provided at the bottom of the fixing base 602. Rubber gaskets 604 are provided on the inner side of the fixing frame 601.

[0026] By installing a fixing mechanism 6 on the outside of the splitter housing 502, the fixing frame 601 wraps around the splitter housing 502, and a rubber gasket 604 is installed inside the fixing frame 601 to reduce the vibration of the constant pressure splitter 5 when the ultra-high pressure manual pump 1 is working, thus protecting the constant pressure splitter 5. At the same time, a suction cup 603 is installed at the bottom of the fixing base 602, and the suction cup 603 generates an adsorption force to fix the constant pressure splitter 5, making the equipment more stable as a whole during operation.

[0027] How to use

[0028] The working principle and usage process of this utility model are as follows: First, the hydraulic pressure required to tighten different bolts is calculated. Based on the calculation results, the pressure regulating valve 504 is adjusted (the rotation angle of the pressure regulating valve 504 is adjusted to correspond to the scale of the pressure gauge 505) so that the pointer 507 points to the corresponding pressure value. The ultra-high pressure manual pump 1 is started to inject hydraulic oil into the pressure regulating distributor 5. The pressure regulating distributor 5 distributes the hydraulic oil to each distributor compartment 503. The pressure regulating valve 504 limits the hydraulic value output by the distributor compartment 503. The hydraulic oil in the distributor compartment 503 enters the hydraulic tensioner 3 through the connecting hose 2 to generate hydraulic pressure. The hydraulic tensioner 3 works to tighten the bolts.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic bolt tensioning system comprising an ultra-high pressure hand pump (1), a connecting hose (2) and a hydraulic tensioner (3), characterized in that: The connecting hose (2) is provided with ultra-high pressure connectors (4) at both ends. The outlet port of the ultra-high pressure manual pump (1) is connected to one end of the connecting hose (2) through the ultra-high pressure connector (4). The other end of the connecting hose (2) is connected to a constant pressure splitter (5) through the ultra-high pressure connector (4). The constant pressure splitter (5) is connected to a hydraulic tensioner (3) through the connecting hose (2). The constant pressure splitter (5) includes a hydraulic inlet (501), a splitter housing (502), a splitter compartment (503), a pressure regulating valve (504), a constant pressure gauge (505), and a hydraulic outlet (506). The splitter housing (502) has a hydraulic inlet (501) at one end, which is fixedly connected to the ultra-high pressure connector (4). The splitter housing (502) is divided into several splitter compartments (503). One end of the splitter compartment (503) is connected to the hydraulic inlet (501), and the other end is connected to the hydraulic outlet (506). The splitter compartment (503) is equipped with a pressure regulating valve (504), and a constant pressure gauge (505) is fixed on the splitter compartment (503) at the front end of the pressure regulating valve (504).

2. The hydraulic bolt tensioning system of claim 1, wherein: The pressure regulating valve (504) has a pointer (507) engraved on its rotating handle, which points to the pressure gauge (505).

3. The hydraulic bolt tensioning system of claim 1, wherein: A fixing mechanism (6) is provided outside the splitter housing (502). The fixing mechanism (6) includes a fixing frame (601) and a fixing base (602). The fixing frame (601) is fitted on the outer surface of the splitter housing (502). The fixing base (602) is welded below the fixing frame (601). Several suction cups (603) are provided at the bottom of the fixing base (602).

4. The hydraulic bolt tensioning system of claim 3, wherein: A rubber gasket (604) is provided on the inner side of the fixed frame (601).

5. The hydraulic bolt tensioning system according to claim 1, wherein: The ultra-high pressure manual pump (1) is equipped with a total pressure gauge (101) at the liquid outlet port.

6. The hydraulic bolt tensioning system according to claim 1, wherein: The hydraulic tensioner (3) is provided with several ports that are respectively connected to the corresponding hydraulic outlets (506).

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