CN104191218A - Engineering hydraulic oil cylinder cover detaching mechanism - Google Patents

Abstract

The invention discloses a mechanism for removing the cylinder head of an engineering hydraulic oil cylinder, wherein the clamp body assembly is installed on the clamp body support, the clamp body support is slidably installed on the clamp body slide rail base, and the clamp body support is connected to the clamp body support The T-shaped nuts are fixed together, the positive and negative T-shaped screws pass through the T-shaped nuts and their surface threads cooperate with the internal threads of the T-shaped nuts to rotate, and the positive and negative threads on the surface of the positive and negative T-shaped screws are respectively connected to the internal threads of the T-shaped nuts. When the threads are matched, the power system of the fixture drives the positive and negative T-shaped screws to rotate, so that the two T-shaped nuts are separated or approached, thereby driving the two parts of the clamp body assembly to close together, and the cylinder head is clamped in the clamp body assembly. The beneficial effect of the invention is that the cylinder head of the engineering hydraulic oil cylinder can be disassembled quickly.

Description

A Mechanism for Removing the Head of an Engineering Hydraulic Cylinder

technical field

The invention belongs to the technical field of engineering machinery remanufacturing, and relates to a mechanism for disassembling an engineering hydraulic oil cylinder head.

Background technique

In order to solve the problem of resource shortage, the country actively accelerates the development of circular economy. Remanufacturing engineering is an important measure and advanced form to implement the national "circular economy" outline. A wide variety of hydraulic cylinders with precise structures are important functional components and key parts of construction machinery with a huge inventory. Remanufacturing failed hydraulic cylinders will obtain huge economic and social benefits. Engineering hydraulic cylinders are composed of cylinder head, cylinder barrel assembly, piston rod assembly, seals and other parts. Common hydraulic cylinder remanufacturing repair problems include seal damage, piston rod assembly deformation, buffer sleeve wear and so on. In the remanufacturing process of hydraulic cylinders, the cylinder head and cylinder barrel need to be disassembled and separated to further inspect and repair the components contained in the hydraulic cylinder. Since the existing general tools cannot easily and quickly disassemble the cylinder head, the current disassembly method is to split the cylinder head and the cylinder barrel by knocking the cylinder head or directly pulling the piston rod. This method not only has low work efficiency, but also At the same time, the cylinder barrel and the piston rod assembly may be damaged, which increases the remanufacturing repair time and labor intensity.

Contents of the invention

The purpose of the present invention is to provide a mechanism for removing the cylinder head of an engineering hydraulic cylinder, which solves the problems that there is no special equipment for removing the cylinder head of the hydraulic cylinder, which is time-consuming and labor-intensive, and easily causes damage to other components.

The technical solution adopted in the present invention is to include the clamp body assembly, which has two sets, respectively installed on the two clamp body supports, the clamp body support is slidably installed on the clamp body slide rail base, and the limit plate It is fixedly installed on the base of the clamp body slide rail and is located next to the clamp body support. It is used to limit the position of the clamp body support. The clamp body slide rail base is fixed on the frame. The T-shaped nuts are fixed together, the positive and negative T-shaped screws pass through the two T-shaped nuts, and the positive and negative screw threads on the surface of the positive and negative T-shaped screws are respectively matched with the internal threads of the T-shaped nuts, and the positive and negative T-shaped screws are connected to each other. One end is connected to the fixture power system through a key, and the fixture power system can drive the positive and negative T-shaped screws to rotate through the key, so that when the positive and negative T-shaped screws rotate in the two T-shaped nuts, the two T-shaped nuts rotate in opposite directions. The shape nut drives the support of the clamp body to move forward or backward. The limit screw is installed at the bottom of the base of the slide rail of the clamp body. The left and right movement of the anti-T-shaped screw, when the power system of the clamp drives the positive and negative T-shaped screw to rotate, so that the two parts of the clamp body assembly are close together, and the cylinder head is clamped in the clamp body assembly. The clamp body assembly consists of two pieces Composed of V-shaped blocks, the V-shaped openings of the two V-shaped blocks face each other.

Further, the clamp body support and the T-shaped nut are fixed together by hexagon socket head cap screws.

Further, the two V-shaped blocks of the clamp body assembly are provided with set screws, springs, and square pins. The set screws fix the springs on the V-shaped bottom of the V-shaped blocks, and the square pins connect the springs, which can squeeze the springs and Bounced by a spring, the square pin is provided with a protrusion.

Further, the square pin is provided with a screw, and the square pin is fastened on the V-shaped block by tightening the screw. When the protrusion on the square pin snaps into the groove on the cylinder head, the screw is slightly tightened at this time. It can prevent the square pin from withdrawing during the movement.

The beneficial effect of the invention is that the cylinder head of the engineering hydraulic oil cylinder can be disassembled conveniently and quickly without damaging other components.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a mechanism for dismounting the cylinder head of an engineering hydraulic oil cylinder according to the present invention;

Figure 2 is a schematic diagram of the disassembly of the flanged cylinder head;

Figure 3 is a schematic diagram of disassembly of the threaded cylinder head.

In the figure, 1. Clamp body assembly, 2. Clamp body slide rail base, 3. Clamp body support, 4. Limit plate, 5. T-shaped nut, 6. Positive and negative T-shaped screw, 7. Key, 8. Fixture power system, 9. limit screw, 101. V-shaped block, 102. set screw, 103. spring, 104. square pin, 105. protrusion, 106. screw.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, it is the device of the present invention. When the work of the clamp power system 8 drives the positive and negative T-shaped screw rods 6 to rotate, so that the positive and negative T-shaped screw rods 6 rotate in the two T-shaped nuts 5, and the two T-shaped nuts 5 because The direction of rotation on the T-shaped screw rod 6 is opposite, and the two move toward each other or in opposite directions along the forward and reverse T-shaped screw rods 6, so that the T-shaped nut 5 drives the clamp body support 3 to move forward or backward in the clamp body slide rail base 2 Slide backward, so that two sets of clamp body components 1 fixed on the clamp body support 3 move closer to the center, so as to achieve the effect of centering and clamping the cylinder head.

As shown in Figure 2, for the disassembly of the flanged cylinder head, the clamp body assembly 1 is composed of two V-shaped blocks 101, and the V-shaped openings of the two V-shaped blocks 101 are opposite. Take off the screws on the flange end cover, and then the two V-shaped blocks 101 of the clamp body assembly 1 are driven by the clamp power system 8 to clamp the cylinder cover (make the oil pipe flange protrusion on the flange type cylinder cover face upward) Or down), and then rotate the cylinder barrel of the hydraulic oil cylinder. At this time, the oil pipe flange bump on the flanged cylinder head is against the mouth of one of the V-shaped blocks 101, thereby limiting the rotation of the cylinder head. Only the cylinder barrel Rotate so that the cylinder barrel is separated from the cylinder head.

As shown in Figure 3, for the disassembly of the threaded cylinder head, the clip body assembly 1 includes two V-shaped blocks 101, and the two V-shaped blocks 101 are respectively equipped with a set screw 102, a spring 103, a square pin 104, and a set screw 102 fix the spring 103 on the V-shaped bottom of the V-shaped block 101, the square pin 104 is connected with the spring 103, the spring 103 can be squeezed and bounced by the spring 103, and the square pin 104 is provided with a protrusion 105, during the process of disassembling the cylinder head , first drive the two V-shaped blocks 101 of the clamp body assembly 1 to clamp the cylinder head, at this time, the cylinder head squeezes the spring 103 through the square pin 104, and then rotates the cylinder barrel of the hydraulic cylinder, which drives the cylinder head to rotate, when When the groove of the cylinder head corresponds to the position of the protrusion 105 on the square pin 104, the square pin 104 is pushed by the spring 103, so that the protrusion 105 snaps into the groove on the cylinder head, so that the rotation of the cylinder head can be limited, making it It can be easily separated from the cylinder.

The square pin 104 can also be provided with a screw 106, and the square pin 104 can be fastened on the V-shaped block 101 by tightening the screw 106. When the protrusion 105 on the square pin 104 snaps into the groove on the cylinder head, the Slightly tighten the screw 106 during the movement to prevent the square pin 104 from withdrawing during the movement.

The invention has the advantages of being able to solve the problems that common tools cannot easily and quickly disassemble the cylinder head of the oil cylinder, the cylinder body and cylinder head parts are easily damaged due to manual disassembly, and the working efficiency is low. The mechanism is easy to operate, can greatly improve the efficiency of dismantling the cylinder barrel, and adopts a modular design at the same time, which has good versatility.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any simple modifications made to the above embodiments according to the technical essence of the present invention, equivalent changes and modifications, all belong to this invention. within the scope of the technical solution of the invention.

Claims (4)

1. A mechanism for removing the cylinder head of an engineering hydraulic cylinder, characterized in that: it includes a clamp body assembly (1), and there are two sets of clamp body components (1), which are respectively installed on two clamp body supports (3) , the clamp body support (3) is slidably installed on the clamp body slide rail base (2), the limit plate (4) is fixedly installed on the clamp body slide rail base (2), and is located on the clamp body support (3 ), used to limit the clamp body support (3), the clamp body slide rail base (2) is fixed on the frame, and the two clamp body supports (3) are connected with the two T-shaped nuts (5) Fixed together, the positive and negative T-shaped screw rods (6) pass through two T-shaped nuts (5), and the forward and reverse screw threads on the surface of the positive and negative T-shaped screw rods (6) are respectively connected to the internal threads of the T-shaped nuts (5). Matching, one end of the positive and negative T-shaped screw rod (6) is connected with the clamp power system (8) through the key (7), and the clamp power system (8) can drive the positive and negative T-shaped screw rod (6) to rotate through the key (7). When the positive and negative T-shaped screw rods (6) rotate in the two T-shaped nuts (5), the two T-shaped nuts (5) rotate in opposite directions, and the clamp body support (3) is clamped by the T-shaped nuts (5). The specific slide rail base (2) slides forward or backward, the limit screw (9) is installed at the bottom of the clamp body slide rail base (2), and the limit screw (9) is located at the front and back T-shaped screw rod (6). Between the two sections of positive and negative screw threads, it is used to limit the left and right movement of the positive and negative T-shaped screws (6). When the clamp power system (8) works, it drives the positive and negative T-shaped screws (6) to rotate, so that the clamp body components ( 1) close together, clamp the cylinder head in the clamp body assembly (1), the clamp body assembly (1) is composed of two V-shaped blocks (101), the V-shaped of the two V-shaped blocks (101) The opening is opposite. 2. A mechanism for removing the cylinder head of an engineering hydraulic cylinder according to claim 1, characterized in that: the clamp body support (3) and the T-shaped nut (5) are fixed together by hexagon socket head screws. 3. A mechanism for removing the cylinder head of an engineering hydraulic cylinder according to claim 1, characterized in that: the two V-shaped blocks (101) of the clamp body assembly (1) are provided with set screws (102 ), spring (103), square pin (104), set screw (102) to fix the spring (103) on the V-shaped bottom of the V-shaped block (101), and the square pin (104) connects the spring (103), which can be squeezed Press the spring (103) and be bounced by the spring (103), and the square pin (104) is provided with a protrusion (105). 4. According to claim 3, a mechanism for removing the cylinder head of an engineering hydraulic oil cylinder is characterized in that: the square pin (104) is provided with a screw (106), and the square pin is tightened by tightening the screw (106). (104) is fastened on the V-shaped block (101). When the protrusion (105) on the square pin (104) snaps into the groove on the cylinder head, tighten the screw (106) slightly at this time to prevent the square pin (104) from The pin (104) is withdrawn during the movement.