CN217272248U - A high-yield-strength magnetic isolation pipe for a combination valve of a commercial vehicle gearbox - Google Patents

Abstract

The utility model discloses a commercial car gearbox magnet tube for combination valve of high yield strength relates to commercial car application technical field. The utility model discloses a separate magnetron tube shaft, the bottom fixed connection tube socket of separate magnetron tube shaft, separate magnetron tube shaft top and seted up and wear the mouth, wear mouthful interior swing joint has the bolt post, and the iron core is decided to the inner fixed connection of bolt post, decides the inner wall of iron core sliding connection separate magnetron tube shaft, and the outer pot head of bolt post has the gasket. Through the utility model discloses a commercial car gearbox that high yield strength is magnetic isolation pipe for combination valve, adopt the structure that can install and remove at will to deciding the iron core, the convenience is changed the iron core of deciding of damage, effectively reduce the material loss of combination valve, and adopt the integrative structure of tube socket and magnetic isolation pipe, compare welded structure, higher yield strength has, effectively prolong the life of magnetic isolation pipe for combination valve, use the environmental protection and save the cost, the wearability of magnetic isolation pipe is also effectively strengthened simultaneously, there is usable value in commercial car application technology field.

Description

A high-yield-strength magnetic isolation pipe for a combination valve of a commercial vehicle gearbox

technical field

The utility model relates to the technical field of commercial vehicle application, in particular to a high-yield strength magnetic isolation pipe for a combined valve of a commercial vehicle gearbox.

Background technique

Commercial vehicles are vehicles used to transport people and goods in terms of design and technical characteristics. The gearboxes of commercial vehicles use different combined control valves. The combined control valve is a high-efficiency control valve for a mechanical transmission mechanism. The series of self-operated control valves adopts modular design, and can be combined into various combined self-operated control valves through assemblies, including self-operated pressure-differential pressure combined valves, self-operated flow-temperature combined valves, self-operated flow-pressure combined valves, etc. The series can be used for various parameters of non-corrosive liquid, gas and steam media to control parameters according to the principle of priority action. The combined control valve needs to use a magnetic isolation tube for electromagnetic shielding. However, the fixed iron core of the magnetic isolation tube for the existing commercial vehicle gearbox combination valve adopts a concave ring convex in the magnetic isolation tube to fix the fixed iron core. This method is more troublesome to replace the fixed iron core, and the magnetic isolation tube needs to be replaced. Deformation recovery is easy to cause damage to the magnetic isolation tube, which is a waste of materials. At the same time, the wear resistance and yield strength of the magnetic isolation tube are not good enough, and the use time is short, which is easy to damage, which is not conducive to saving the use cost.

Utility model content

In order to solve the problems raised in the above-mentioned background art, the purpose of the present invention is to provide a magnetic isolation pipe for a combined valve of a commercial vehicle gearbox with high yield strength.

The utility model provides the following technical scheme: comprising a magnetic isolation pipe body, the bottom of the magnetic isolation pipe body is fixedly connected to a pipe seat, the top of the magnetic isolation pipe body is provided with a perforation, and a bolt column is movably connected in the perforation. The inner end of the bolt column is fixedly connected to the fixed iron core, and the fixed iron core is slidably connected to the inner wall of the magnetic isolation tube body. The nut is threaded to connect the bolt column, the inside of the tube seat is fixedly connected with a support ring, the lower side of the support ring is fixedly provided with a lower sealing plate, the center of the lower sealing plate is slidably connected to the push rod, and the inner end of the push rod is fixedly connected to the moving iron core , the moving iron core is slidably connected to the inside of the magnetic isolation pipe body, and the outer end of the push rod is fixedly connected to the valve plug.

A buffer spring for buffering the impact of the movable iron core on the fixed iron core is arranged between the fixed iron core and the through hole of the magnetic isolation tube body, and the buffer spring is sleeved on the inner section of the bolt column.

A rebound spring for restoring the moving iron core is arranged between the valve plug and the lower sealing plate, and the rebound spring is sleeved on the outer section of the push rod.

The inner side of the lower sealing plate is provided with a first ring groove, the first ring groove is provided with a first sealing ring, the first sealing ring contacts the support ring, the fixed iron core is provided with a second ring groove, and the second ring groove is arranged in the second ring groove. A second sealing ring is provided, and the second sealing ring contacts the inner wall of the tube body of the magnetic isolation tube.

The side of the tube seat is provided with an oil filling port, the oil filling port is provided with a head, and the side side of the movable iron core is provided with an oil conveying groove which runs through and distributes up and down.

The position where the magnetic shielding tube body and the tube base are connected is set as a bell mouth shape, and the inner wall of the magnetic shielding tube body is fixedly connected with an inner grinding layer, and the inner grinding layer is made of high-chromium metal material.

The beneficial effects of the present utility model are as follows:

1. By arranging the bolt column, the nut and the fixed iron core in the present invention, the fixed iron core can be locked in position through the cooperation of the bolt column and the nut, so that the fixed iron core can be assembled and disassembled without damage, and the magnetic isolation tube can be avoided. destruction of the body.

2. The utility model can directly buffer the impact of the moving iron core on the fixed iron core by setting the buffer spring.

3. The utility model can reset and rebound the movable iron core by setting the rebound spring.

4. By arranging the first sealing ring and the second sealing ring in the present invention, the sealing performance of the inner space of the magnetic isolation pipe body can be ensured, and the leakage of lubricating oil can be avoided.

5. The utility model realizes the input of lubricating oil by setting the oil filling port, and sets the oil conveying groove to realize the oil liquid transformation of the space at the upper and lower ends of the moving iron core, and maintain the pressure balance.

6. The utility model can ensure that the fixed iron core and the moving iron core quickly enter the interior of the magnetic isolation tube body by setting the bell mouth-shaped connection position, compared with the straight cylinder mouth shape, reducing the entry resistance, and setting the high-chromium metal material. The inner grinding layer can increase the wear resistance of the magnetic isolation tube body.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a schematic cross-sectional structural diagram of the connection between the tube body and the tube seat of the magnetic isolation tube in the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in FIGS. 1 to 2 , this embodiment includes a magnetic isolation tube body 7 , the bottom of the magnetic isolation tube body 7 is fixedly connected to a tube seat 17 , and the top of the magnetic isolation tube body 7 is provided with a perforation, and the inner part of the perforation A bolt column 12 is movably connected, the inner end of the bolt column 12 is fixedly connected to the fixed iron core 9, the fixed iron core 9 is slidably connected to the inner wall of the magnetic isolation tube body 7, the outer end of the bolt column 12 is covered with a gasket 10, and the gasket 10 The lower side contacts the top of the magnetic isolation pipe body 7, the upper side of the gasket 10 is provided with a nut threaded connection bolt column 12, the inside of the pipe seat 17 is fixedly connected with a support ring 16, and the lower side of the support ring 16 is fixedly provided with a lower seal Plate 5, the center of the lower sealing plate 5 is slidably connected to the push rod 2, the inner end of the push rod 2 is fixedly connected to the movable iron core 14, the movable iron core 14 is slidably connected to the inside of the magnetic isolation tube body 7, and the outer end of the push rod 2 Securely connect valve plug 1.

In this embodiment, by arranging the bolt column 12, the nut and the fixed iron core 9, the position of the fixed iron core 9 can be locked through the cooperation of the bolt column 12 and the nut, so that the fixed iron core 9 can be assembled and disassembled without damage, and the isolation of the fixed iron core 9 can be avoided. Destruction of the magnetic tube body.

Referring to FIG. 1 , a buffer spring 11 for buffering the impact of the movable iron core 14 on the fixed iron core 9 is provided between the fixed iron core 9 and the opening of the magnetic isolation tube body 7 , and the buffer spring 11 is sleeved on the inner section of the bolt column 12 .

In this embodiment, by setting the buffer spring 11 , the impact of the movable iron core 14 on the fixed iron core 9 can be directly buffered.

Referring to FIG. 1 , a rebound spring 18 for restoring the movable iron core 14 is provided between the valve plug 1 and the lower sealing plate 5 , and the rebound spring 18 is sleeved on the outer section of the push rod 2 .

In this embodiment, by setting the rebound spring 18 , the movable iron core 14 can be reset and rebounded.

Referring to FIG. 1 , the inner side of the lower sealing plate 5 is provided with a first ring groove, the first ring groove is provided with a first sealing ring 3 , the first sealing ring 3 contacts the support ring 16 , and the fixed iron core 9 is provided with a second ring The second ring groove is provided with a second sealing ring 8 , and the second sealing ring 8 contacts the inner wall of the tube body 7 of the magnetic isolation pipe.

In this embodiment, by arranging the first sealing ring 3 and the second sealing ring 8, the sealing performance of the inner space of the magnetic isolation pipe body can be ensured, and the leakage of lubricating oil can be avoided.

Referring to FIG. 1 , the side of the tube base 17 is provided with an oil filling port 4 , and a sealing head is provided on the oil filling port 4 , and the side of the movable iron core 14 is provided with an oil conveying groove 15 that runs through and distributes up and down.

In this embodiment, the oil supply port 4 is provided to realize the input of lubricating oil, and the oil delivery groove 15 is provided to realize the oil-liquid conversion of the space at the upper and lower ends of the moving iron core 14 and maintain the pressure balance.

Referring to Fig. 1-2, the position where the magnetic isolation tube body 7 and the tube base 17 are connected is set as a bell mouth shape, and the inner wall of the magnetic isolation tube body 7 is fixedly connected with an inner grinding layer 6, and the inner grinding layer 6 is a high-chromium metal. Material.

In this embodiment, by setting a bell mouth-shaped connection position, compared with a straight barrel mouth, it can ensure that the fixed iron core 9 and the moving iron core 14 can quickly enter the inside of the magnetic isolation tube body 7, reduce the entry resistance, and set a high-chromium metal material The inner grinding layer 6 can increase the wear resistance of the magnetic isolation tube body 7 .

In the present invention, the second sealing ring 8 is installed on the fixed iron core 9, then the fixed iron core 9 and the bolt column 12 are inserted into the magnetic isolation tube body, and the buffer spring 11 is set on the bolt column 12, and then the bolt column 12 penetrate into the through hole and push out, tighten the bolt column 12 through the washer 10 and the nut, and then install the moving iron core 14 and the lower sealing plate 5 on the tube seat 17. 5. Install the first sealing ring 3, and then fix the support ring 16 and the lower sealing plate 5 with screws. In the use stage, inject lubricating oil through the oil filling port 4, and then when the moving iron core 14 moves, the oil conveying groove 15 will The oil in the space at the upper and lower ends of the moving iron core 14 is converted, and the lubricating oil will lubricate the movement of the moving iron core 14. When the moving iron core 14 and the fixed iron core 9 are in contact, the second spring will buffer the moving iron core 14 against the fixed iron. Under the impact of the core 9, the moving iron core 14 will be reset by the rebound spring 18, thereby completing the installation and use process of the magnetic isolation tube for the high-yield strength commercial vehicle gearbox combination valve.

Claims (6)

1. A magnetic isolation pipe for a high yield strength commercial vehicle gearbox combination valve, comprising a magnetic isolation pipe body (7), and the bottom of the magnetic isolation pipe body (7) is fixedly connected to a pipe seat (17), characterized in that : The top of the magnetic isolation tube body (7) is provided with a perforation, a bolt column (12) is movably connected in the perforation, and the inner end of the bolt column (12) is fixedly connected to the fixed iron core (9), the fixed iron core (9) ) is slidingly connected to the inner wall of the magnetic isolation pipe body (7), the outer end of the bolt column (12) is covered with a gasket (10), and the underside of the gasket (10) contacts the top of the magnetic isolation pipe body (7). The upper side of the sheet (10) is provided with a nut threaded connection bolt column (12), a support ring (16) is fixedly connected to the inside of the pipe seat (17), and a lower sealing plate (5) is fixedly arranged on the lower side of the support ring (16). ), the center of the lower sealing plate (5) is slidably connected to the push rod (2), the inner end of the push rod (2) is fixedly connected to the moving iron core (14), and the moving iron core (14) is slidably connected to the magnetic isolation tube body ( 7) Inside, the outer end of the push rod (2) is fixedly connected to the valve plug (1). 2 . The high-yield-strength magnetic isolation pipe for a gearbox combination valve of a commercial vehicle according to claim 1, characterized in that: the perforation of the fixed iron core (9) and the magnetic isolation pipe body (7) A buffer spring (11) for buffering the impact of the movable iron core (14) on the fixed iron core (9) is arranged therebetween, and the buffer spring (11) is sleeved on the inner section of the bolt column (12). 3. The high-yield strength magnetic isolation pipe for a combined valve of a commercial vehicle gearbox according to claim 2, characterized in that: between the valve plug (1) and the lower sealing plate (5), there is a set for reset The rebound spring (18) of the moving iron core (14) is sleeved on the outer section of the push rod (2). 4. The high-yield strength magnetic isolation pipe for a combination valve of a commercial vehicle gearbox according to claim 3, characterized in that: a first ring groove is opened on the inner side of the lower sealing plate (5). A first sealing ring (3) is arranged in the groove, the first sealing ring (3) contacts the support ring (16), a second ring groove is opened on the fixed iron core (9), and a second sealing ring is arranged in the second ring groove Ring (8), the second sealing ring (8) contacts the inner wall of the magnetic isolation pipe body (7). 5. The high-yield strength magnetic isolation pipe for a combination valve of a commercial vehicle gearbox according to claim 4, characterized in that: the side of the pipe seat (17) is provided with an oil filling port (4), which is The oil port (4) is provided with a sealing head, and the side of the movable iron core (14) is provided with an oil conveying groove (15) which runs through and distributes up and down. 6 . The high-yield-strength magnetic isolation pipe for a gearbox combination valve of a commercial vehicle according to claim 5 , characterized in that: the position where the magnetic isolation pipe body ( 7 ) and the pipe seat ( 17 ) are connected In the shape of a bell mouth, an inner grinding layer (6) is fixedly connected to the inner wall of the magnetic isolation tube body (7).

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