CN211738153U

CN211738153U - Valve sleeve for automobile gearbox

Info

Publication number: CN211738153U
Application number: CN201921358993.4U
Authority: CN
Inventors: 祁惠光
Original assignee: Ningbo Ri'an Precision Industrial Machinery Co ltd
Current assignee: Ningbo Ri'an Precision Industrial Machinery Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-10-23
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a valve sleeve for an automobile gearbox, wherein an inlet and an outlet are arranged in the valve sleeve, a valve core installation cavity is arranged at the joint of the inlet and the outlet, and a valve core is arranged in the valve core installation cavity; the valve core is provided with a through liquid through hole, the front end and the rear end of the liquid through hole can be communicated with the inlet and the outlet after the valve core rotates, an inflatable sealing piece is arranged between the inner wall of the valve core installation cavity and the valve core, the inflatable sealing piece is provided with a communication port corresponding to the flow channel, and the outer surface of the valve core is wrapped by the inflatable sealing piece so as to seal the outer surface of the valve core and the inner wall of the valve core installation cavity; an opening is formed below the valve core installation cavity, a sealing cover is detachably and hermetically arranged at the opening, an inner concave arc-shaped surface is arranged on the sealing cover, and the inner concave arc-shaped surface is pressed on the inflatable sealing element to realize sealing. The utility model has the advantages of excellent sealing performance, quick disassembly and assembly function, and convenient maintenance and replacement of the internal structure; the vibration and hydraulic impact can be monitored in real time, and the normal work of the gearbox is protected.

Description

Valve sleeve for automobile gearbox

Technical Field

The invention relates to a valve sleeve for an automobile gearbox.

Background

The gearbox is an important part of the vehicle, and can change the transmission ratio and enlarge the torque and the rotating speed of a driving wheel. With the development of modern science and technology, the gearbox is also upgraded, and the control is more and more convenient from the original manual gearbox to the current stepless gearbox from the synchronizer-free gearbox to the synchronizer-containing gearbox. At present, the engineering machinery widely adopts a diesel engine, the torque and rotating speed change range of the diesel engine is small, the requirements of a vehicle on traction force and running speed under various working conditions cannot be met, and a gearbox is required to solve the contradiction. The quality of the performance of the gearbox is the key for measuring the dynamic property, the economical efficiency and the drivability of the engineering machinery. The current speed change systems mainly comprise: mechanical transmission, hydraulic transmission, hydrostatic transmission. The gearbox has manual gear shifting and power gear shifting, and the structure has a fixed shaft type and a planetary type.

When a safety valve in a hydraulic transmission system in an automobile gearbox breaks down, the valve sleeve of the valve core is of an integrated structure, so that the valve is inconvenient to disassemble and assemble, time and labor are wasted in maintenance, and the valve is generally replaced integrally during actual use, so that the cost is overhigh.

The precision of the automobile gearbox is high, and the automobile gearbox is internally provided with a plurality of gears which are meshed, connected and matched to work, so that the requirement on vibration is high. In addition, during the hydraulic transmission, there may be shocks, and if the shocks are too large, damage may occur to the transmission case. Therefore, monitoring of shock and hydraulic shock is required.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the valve sleeve for the automobile gearbox, which has the advantages of excellent sealing performance and long service life, has the function of quick assembly and disassembly, is convenient for maintaining and replacing the internal structure when a fault occurs, and reduces the use cost of a user; the vibration and hydraulic impact can be monitored in real time, and the normal work of the gearbox is protected.

In order to solve the technical problem, the invention is solved by the following technical scheme: the valve sleeve for the automobile gearbox is internally provided with an inlet and an outlet, a valve core installation cavity is arranged at the joint of the inlet and the outlet, and a valve core is arranged in the valve core installation cavity; the valve core is provided with a through liquid through hole, the front end and the rear end of the liquid through hole can be communicated with the inlet and the outlet after the valve core rotates, an inflatable sealing element is arranged between the inner wall of the valve core installation cavity and the valve core, the inflatable sealing element is provided with a communication port corresponding to the inlet and the outlet, and the inflatable sealing element wraps the outer surface of the valve core so as to seal the outer surface of the valve core and the inner wall of the valve core installation cavity; an opening is formed in the lower portion of the valve core installation cavity, the size of the opening is larger than that of the valve core, a sealing cover is detachably and hermetically arranged at the opening, an inner concave arc-shaped surface is arranged on the sealing cover, and the inner concave arc-shaped surface is pressed on the inflatable sealing piece to achieve sealing.

Preferably, a sealing pressure bearing table is arranged at an opening below the valve core installation cavity, the sealing cover is provided with a sealing step matched with the sealing cover, a first sealing ring is arranged on the sealing step, and the sealing step is pressed on the sealing pressure bearing table and sealed by the first sealing ring; the sealing step is connected with a flange plate, a second sealing ring is arranged on the flange plate, and the flange plate is pressed on the outer wall of the valve core mounting cavity and sealed by the second sealing ring.

Preferably, the valve barrel is located be provided with shake detection portion on the outer wall of import top, the inside working chamber that is provided with of shake detection portion, be provided with copper post and stand in the working chamber, copper post tip rotates and is connected with the elastic rod that metal material made, elastic rod tip is taken on the stand, be provided with directly over the stand and detect the head, shake detection portion is provided with signal transmission end, the copper post with detect first circuit connection inside the shake detection portion, the elastic rod touches produce pulse signal behind the detection head, is transmitted away from signal transmission end by shake detection portion.

Preferably, the valve core is provided with a constant pressure port perpendicular to the liquid through hole, and the constant pressure port is communicated with the inlet when the valve is not opened. The arrangement enables hydraulic pressure to act on the inner wall of the valve core, so that the outer wall of the valve core can be tightly abutted against the air-filled sealing piece to increase the sealing effect. In addition, the internal pressure of the valve core and the inlet are balanced, thereby reducing the resistance received when the valve core is rotated.

Preferably, a sleeve part is arranged at the upper part of the shell, a connecting end is arranged at the top of the valve core, a limiting step is arranged in the sleeve part, and the limiting step limits the upward movement of the connecting end; the connecting end is connected with a connecting rod and driven by the connecting rod to rotate, a first step shaft is arranged above the connecting rod, the first step shaft is pressed on the limiting step, and an upper sealing ring is arranged at the joint of the first step shaft and the limiting step; a second step shaft is arranged above the first step shaft, a sealing material is arranged on the first step shaft and close to the second step shaft, and the sealing material is used for sealing between the first step shaft and the sleeve part.

Preferably, a connecting disc is arranged at the top end of the sleeve part, a cover plate is arranged at the end part of the second stepped shaft, the cover plate is connected and installed on the connecting disc by using a bolt group and presses the second stepped shaft to prevent the second stepped shaft from being separated, the cover plate is provided with a through hole, and the second stepped shaft is fixedly connected with a valve rod which penetrates through the through hole and is driven by the valve rod to rotate.

Preferably, the bottom of the valve core is provided with a protruding rotating shaft, the end part of the rotating shaft is provided with a hexagon socket, the sealing cover is provided with an insertion hole for inserting the rotating shaft, and a rotating sealing ring is arranged between the inner wall of the insertion hole and the outer wall of the rotating shaft for sealing; the connecting end is provided with an inner square hole, the connecting rod is provided with an outer square shaft matched with the connecting rod, and the outer square shaft is inserted into the inner square hole so that the connecting rod drives the connecting end to rotate.

Preferably, a spring is arranged between the bottom of the insertion hole and the end part of the rotating shaft, and the spring jacks up the rotating shaft.

The invention provides a valve sleeve for an automobile gearbox, which has the advantages of excellent sealing performance and long service life, has a quick disassembly and assembly function, is convenient for maintaining and replacing an internal structure when a fault occurs, and reduces the use cost of a user; the vibration and hydraulic impact can be monitored in real time, and the normal work of the gearbox is protected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a schematic view of the sealing cover and its peripheral structure of the present invention.

Fig. 3 is a schematic diagram of the structure at a in fig. 1.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by a person skilled in the art without creative efforts are within the scope of the present disclosure.

The embodiment of the utility model provides a valve barrel for motor transmission, it is outstanding to have sealing performance, advantage that life is high.

As shown in fig. 1 to 3, a valve sleeve for an automobile transmission, wherein an inlet 11 and an outlet 12 are arranged in the valve sleeve 1, a valve core installation cavity is arranged at the joint of the inlet 11 and the outlet 12, and a valve core 2 is arranged in the valve core installation cavity; the valve core 2 is provided with a through liquid through hole 21, the front end and the rear end of the liquid through hole 21 are communicated with the inlet 11 and the outlet 12 after the valve core 2 rotates, an inflatable sealing element 4 is arranged between the inner wall of the valve core mounting cavity and the valve core 2, the inflatable sealing element 4 is provided with a communication port 41 corresponding to the inlet 11 and the outlet 12, and the inflatable sealing element 4 wraps the outer surface of the valve core 2 so as to seal the outer surface of the valve core 2 and the inner wall of the valve core mounting cavity; an opening is formed in the lower portion of the valve core installation cavity, the size of the opening is larger than that of the valve core, a sealing cover 5 is detachably and hermetically arranged at the opening, the sealing cover 5 is provided with an inner concave arc-shaped surface 54, and the inner concave arc-shaped surface 54 is pressed on the inflatable sealing element 4 to achieve sealing.

A sealing pressure bearing table 16 is arranged at an opening below the valve core installation cavity, the sealing cover 5 is provided with a sealing step 52 matched with the sealing pressure bearing table, a first sealing ring 521 is arranged on the sealing step 52, and the sealing step 52 presses the sealing pressure bearing table 16 and realizes sealing by utilizing the first sealing ring 521; the sealing step 52 is connected with a flange 53, a second sealing ring 531 is arranged on the flange 53, and the flange 53 is pressed on the outer wall of the valve core mounting cavity and sealed by the second sealing ring 531.

The valve barrel is located be provided with shake detection portion 6 on the outer wall of import 11 top, the inside working chamber 65 that is provided with of shake detection portion 6, be provided with copper post 61 and stand 62 in the working chamber 65, copper post 61 tip rotates and is connected with the elastic rod 611 that metal material made, elastic rod 611 tip is taken on the stand 62, be provided with directly over the stand 62 and detect head 63, shake detection portion 6 is provided with signal transmission end 64, copper post 61 with detect first 63 circuit connection inside shake detection portion 6, elastic rod 611 touches produce pulse signal behind the detection head 63, is transmitted away from signal transmission end 64 by shake detection portion 6.

The valve core 2 is provided with a constant pressure port 23 vertical to the liquid through hole 21, and the constant pressure port 23 is communicated with the inlet 11 when the valve is not opened. The arrangement is such that hydraulic pressure can act on the inner wall of the valve core 2, so that the outer wall of the valve core 2 can tightly abut against the inflatable sealing element 4 to increase the sealing effect. In addition, the internal pressure of the spool 2 and the inlet 11 are balanced, thereby reducing resistance received when the spool 2 is rotated.

A sleeve part 13 is arranged at the upper part of the shell 1, a connecting end 22 is arranged at the top of the valve core 2, a limiting step 131 is arranged in the sleeve part 13, and the limiting step 131 limits the upward movement of the connecting end 22; the connecting end 22 is connected with a connecting rod 3 and is driven by the connecting rod 3 to rotate, a first step shaft 31 is arranged above the connecting rod 3, the first step shaft 31 is pressed on the limiting step 131, and an upper sealing ring 311 is arranged at the joint of the first step shaft and the limiting step 131; a second step shaft 32 is disposed above the first step shaft 31, a sealing material 321 is disposed on the first step shaft 31 near the second step shaft 32, and the sealing material 321 is used for sealing between the first step shaft 31 and the sleeve portion 13.

The top end of the sleeve part 13 is provided with a connecting disc 14, the end part of the second step shaft 32 is provided with a cover plate 15, the cover plate 15 is installed on the connecting disc 14 by using a bolt group connection and presses the second step shaft 32 to be incapable of being separated, the cover plate 15 is provided with a through hole, and the second step shaft 32 is fixedly connected with a valve rod 33 which passes through the through hole and is driven by the valve rod 33 to rotate.

The bottom of the valve core 2 is provided with a protruding rotating shaft 24, the end part of the rotating shaft 24 is provided with a hexagon socket 25, the sealing cover 5 is provided with an insertion hole 51 for the rotating shaft 24 to insert, and a rotating sealing ring 26 is arranged between the inner wall of the insertion hole 51 and the outer wall of the rotating shaft 24 for sealing; the connecting end 22 is provided with an inner square hole, the connecting rod 3 is provided with an outer square shaft matched with the connecting rod, and the outer square shaft is inserted into the inner square hole so as to realize that the connecting rod 3 drives the connecting end to rotate.

A spring is arranged between the bottom of the jack 51 and the end of the rotating shaft 24, and the spring jacks up the rotating shaft 24.

This device has the function of quick dismantlement case 2, specifically, has the case installation cavity in the valve barrel 1, sets up the opening below the case installation cavity, utilizes sealed lid 5 to cover the opening and realizes sealing. The valve element 2 is mounted in the valve element mounting cavity and the opening is larger in size than the valve element 2, so that the valve element 2 can be mounted in the valve element mounting cavity from the opening. The top of the valve core 2 is provided with a connecting end 22, the bottom of the valve core is provided with a rotating shaft 24, the connecting end 22 is limited by a limit step 131 to move, and a spring is arranged below the rotating shaft 24 and jacked up by the spring. With this arrangement, the valve element 2 is restricted in the valve element mounting cavity and can only rotate but cannot displace.

The rotating shaft 24 is provided with a hexagon socket 25, and when the connecting rod 3 is installed, a wrench is inserted into the hexagon socket 25, so that the outer shaft of the connecting rod 3 can be accurately inserted into the inner socket, and the connecting rod 3 is installed on the connecting end 22. The connecting rod 3 is connected to the valve rod 333, and the valve core 2 can be driven to rotate by the valve rod 333 to realize the opening and closing of the valve.

In order to control the shock, data for detecting the shock is required. The device detects the vibration condition by using the vibration detection part 6 and indicates the intensity of the vibration by outputting a pulse signal.

The shake detection unit 6 has an elastic rod 611 and a detection head 63 inside, and if a shake occurs, the elastic rod 611 rotates in the case of a shake, and when it rotates upward, it comes into contact with the detection head 63, and at this time, the copper pillar 61 and the detection head 63 are electrically connected, and the shake detection unit 6 sends a pulse signal. If the shake is severe, the elastic bar 611 will continuously bounce and contact the detection head 63, and the shake detection unit 6 will continuously send a series of pulse signals. Further, the more rapid the shaking is, the faster the elastic bar 611 springs up, and therefore the interval of the pulse signal becomes shorter. By detecting the pulse signal, the current jitter situation can be known. If the shudder is too severe, the gearbox may be damaged, and an alarm may need to be sent. The alarm sending mechanism and the detection mechanism are connected to work.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Valve barrel for motor transmission, its characterized in that: an inlet (11) and an outlet (12) are arranged in a housing (1) of the valve sleeve, a valve core mounting cavity is arranged at the joint of the inlet (11) and the outlet (12), and a valve core (2) is arranged in the valve core mounting cavity; the valve core (2) is provided with a through liquid through hole (21), the front end and the rear end of the liquid through hole (21) can be communicated with the inlet (11) and the outlet (12) after the valve core (2) rotates, an inflatable sealing element (4) is arranged between the inner wall of the valve core installation cavity and the valve core (2), the inflatable sealing element (4) is provided with a communication port (41) corresponding to the inlet (11) and the outlet (12), and the inflatable sealing element (4) wraps the outer surface of the valve core (2) so as to seal the outer surface of the valve core (2) and the inner wall of the valve core installation cavity; an opening is formed in the lower portion of the valve core installation cavity, the size of the opening is larger than that of the valve core, a sealing cover (5) is detachably arranged at the opening in a sealing mode, an inner concave arc-shaped surface (54) is arranged on the sealing cover (5), and the inner concave arc-shaped surface (54) is pressed on the inflatable sealing piece (4) to achieve sealing.

2. The sleeve for a vehicle transmission of claim 1, wherein: a sealing pressure bearing table (16) is arranged at an opening below the valve core mounting cavity, a sealing step (52) matched with the sealing cover (5) is arranged on the sealing cover (5), a first sealing ring (521) is arranged on the sealing step (52), and the sealing step (52) is pressed on the sealing pressure bearing table (16) and sealed by the first sealing ring (521); the sealing step (52) is connected with a flange plate (53), a second sealing ring (531) is arranged on the flange plate (53), and the flange plate (53) is pressed on the outer wall of the valve core mounting cavity and sealed by the second sealing ring (531).

3. The sleeve for a vehicle transmission of claim 2, wherein: the valve barrel is located be provided with shake detection portion (6) on the outer wall of import (11) top, shake detection portion (6) inside be provided with working chamber (65), be provided with copper post (61) and stand (62) in working chamber (65), copper post (61) tip rotates and is connected with elastic rod (611) that metal material made, elastic rod (611) tip is taken on stand (62), be provided with directly over stand (62) and detect head (63), shake detection portion (6) are provided with signal transmission end (64), copper post (61) with detect head (63) circuit connection inside shake detection portion (6), elastic rod (611) touch produce pulse signal behind detection head (63), are transmitted out from signal transmission end (64) by shake detection portion (6).

4. The sleeve for a vehicle transmission of claim 1, wherein: the valve core (2) is provided with a pressure balancing port (23) perpendicular to the liquid through hole (21), and the pressure balancing port (23) is communicated with the inlet (11) when the valve is not opened.

5. The sleeve for a vehicle transmission of claim 1, wherein: a sleeve part (13) is arranged at the upper part of the shell (1), a connecting end (22) is arranged at the top of the valve core (2), a limiting step (131) is arranged in the sleeve part (13), and the limiting step (131) limits the upward movement of the connecting end (22); the connecting end (22) is connected with a connecting rod (3) and is driven by the connecting rod (3) to rotate, a first step shaft (31) is arranged above the connecting rod (3), the first step shaft (31) is pressed on the limiting step (131), and an upper sealing ring (311) is arranged at the connection position of the first step shaft and the limiting step (131); a second step shaft (32) is arranged above the first step shaft (31), a sealing material (321) is arranged on the first step shaft (31) and close to the second step shaft (32), and the sealing material (321) is used for sealing between the first step shaft (31) and the sleeve pipe portion (13).

6. The sleeve for a vehicle transmission of claim 5, wherein: the top end of the sleeve part (13) is provided with a connecting disc (14), the end part of the second step shaft (32) is provided with a cover plate (15), the cover plate (15) is installed on the connecting disc (14) through a bolt group connection and presses the second step shaft (32) to be incapable of being separated, the cover plate (15) is provided with a through hole, and the second step shaft (32) is fixedly connected with a valve rod (33) which penetrates through the through hole and is driven by the valve rod to rotate.

7. The sleeve for a vehicle transmission of claim 6, wherein: the bottom of the valve core (2) is provided with a protruded rotating shaft (24), the end part of the rotating shaft (24) is provided with a hexagon socket (25), the sealing cover (5) is provided with an insertion hole (51) for the rotating shaft (24) to insert, and a rotating sealing ring (26) is arranged between the inner wall of the insertion hole (51) and the outer wall of the rotating shaft (24) for sealing; the connecting end (22) is provided with an inner square hole, the connecting rod (3) is provided with an outer square shaft matched with the connecting rod, and the outer square shaft is inserted into the inner square hole so that the connecting rod (3) drives the connecting end to rotate.

8. The sleeve for a vehicle transmission of claim 7, wherein: a spring is arranged between the bottom of the jack (51) and the end part of the rotating shaft (24), and the rotating shaft (24) is jacked upwards by the spring.