CN210531584U - Pneumatic control two-shaft power takeoff with gear engaging/disengaging monitoring unit - Google Patents
Pneumatic control two-shaft power takeoff with gear engaging/disengaging monitoring unit Download PDFInfo
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- CN210531584U CN210531584U CN201920985135.6U CN201920985135U CN210531584U CN 210531584 U CN210531584 U CN 210531584U CN 201920985135 U CN201920985135 U CN 201920985135U CN 210531584 U CN210531584 U CN 210531584U
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- power takeoff
- monitoring unit
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- mounting shell
- piston shaft
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Abstract
The utility model relates to a power takeoff especially relates to a gas accuse two shaft type power takeoff with engage/disengage monitoring unit. The utility model aims at solving the technical problem that the prior art can not monitor the engaging/disengaging state of the pneumatic control two-shaft power takeoff all the time, and providing a pneumatic control two-shaft power takeoff with an engaging/disengaging monitoring unit. The power takeoff comprises a monitoring unit, wherein the monitoring unit comprises a mounting shell, an indicator light arranged at the front end of the mounting shell, and a switch contact which is arranged at the rear end of the mounting shell and corresponds to the indicator light; the side part of the mounting shell is provided with an external thread near the rear end; the front end of the locating sleeve is provided with a boss, the center of the end face of the boss is provided with a threaded hole and communicated with the cylinder, the threaded hole is matched with the external thread of the mounting shell, and when the power takeoff is in a gear engaging state, the piston shaft moves axially to contact the switch contact. The utility model discloses a power takeoff simple structure, convenient to use, dependable performance can monitor the power takeoff's the state of hanging/taking off the gear at any time.
Description
Technical Field
The utility model relates to a power takeoff especially relates to a gas accuse two shaft type power takeoff with engage/disengage monitoring unit.
Background
The power takeoff is actually a transmission device consisting of one or more groups of gear mechanisms, also called a power output device, and the power of the power output device mainly comes from a gearbox. According to different control modes, the power takeoff is mainly divided into mechanical control, hydraulic control, vacuum source control, pneumatic control, electric control and the like, wherein the pneumatic control mode is common. For a pneumatic control power takeoff, one path of control air is required to be introduced from a whole vehicle to carry out gear engaging and gear disengaging operations. For example, the invention patent with publication number CN104061281A discloses a pneumatic gear engaging spring disengaging two-shaft power takeoff, as shown in fig. 1, which includes a positioning sleeve 6 mounted on a power takeoff housing 1, a compression spring 7 mounted inside the positioning sleeve 6, a transmission gear 11 engaged with a transmission countershaft gear via an input bearing 5 mounted on an outer wall of the positioning sleeve 6, a piston shaft 17 capable of moving axially mounted at a rear end of the positioning sleeve 6, a head of the piston shaft 17 extending into the positioning sleeve 6 to be connected with the compression spring 7, a driving gear 13 capable of combining and linking with the transmission gear 11 mounted on an outer wall of a tail of the piston shaft 17 via a driving bearing 14, a cylinder head 18 with an air vent mounted at a rear end of the piston shaft 17, and a cylinder cavity formed between the cylinder head 18 and a rear end face of the piston shaft 17; a driven gear 19, which is in constant mesh with the drive gear 13, is fixed to the output shaft 2, which is mounted in the housing through the output bearing 3.
At present, the engaging/disengaging state of the pneumatic control two-shaft power takeoff cannot be monitored, and how to realize the constant monitoring of the engaging/disengaging state of the power takeoff is a problem which is focused on by designers.
Disclosure of Invention
The utility model aims at solving the technical problem that the prior art can not monitor the engaging/disengaging state of the pneumatic control two-shaft power takeoff all the time, and providing a pneumatic control two-shaft power takeoff with an engaging/disengaging monitoring unit.
The invention conception of the utility model is as follows: a monitoring unit for monitoring the gear engaging/disengaging state is additionally arranged at the front end of a positioning sleeve of the conventional pneumatic control two-shaft power takeoff, so that the gear engaging/disengaging state of the pneumatic control two-shaft power takeoff can be monitored at any time.
In order to solve the technical problem, the utility model provides a technical solution as follows:
a pneumatic control two-shaft power takeoff with a gear engaging/disengaging monitoring unit comprises a power takeoff shell cylinder, a positioning sleeve, a piston shaft positioned in the cylinder and a compression spring sleeved on the front part of the piston shaft; it is characterized in that: the monitoring unit comprises a mounting shell, an indicator lamp arranged at the front end of the mounting shell, and a switch contact which is arranged at the rear end of the mounting shell and corresponds to the indicator lamp;
the side part of the mounting shell is provided with an external thread near the rear end;
the locating sleeve front end is equipped with the boss, and the terminal surface center of boss is seted up the screw hole and is communicated with the cylinder, the screw hole with the external screw thread phase-match of installation casing, the position of switch contact and the stroke of piston shaft satisfy: when the power takeoff is in a gear engaging state, the piston shaft moves axially to contact the switch contact.
Further, a sealing gasket is arranged between the boss of the positioning sleeve and the mounting shell of the monitoring unit.
Furthermore, the head of the piston shaft is provided with a positioning shaft shoulder, and the piston shaft is connected with the compression spring through the positioning shaft shoulder.
Further, the locating sleeve is fixed on the power takeoff shell through a bolt.
Further, the bolt is a hexagon bolt.
The utility model discloses compare the beneficial effect that prior art has:
the utility model provides a gas accuse two shaft type power takeoff with string/out of gear monitoring unit adds the monitoring unit who is used for monitoring string/out of gear state at the position sleeve front end of current gas accuse two shaft type power takeoff, and simple structure, convenient to use, dependable performance can monitor the operating condition of power takeoff at any time. The power takeoff gear-off caused by abnormal reasons can be fed back in time, so that accidents are effectively reduced and avoided.
Drawings
FIG. 1 is a schematic structural view of a conventional pneumatic engaging spring out-of-gear two-shaft power takeoff;
FIG. 2 is a schematic structural view of the pneumatic control two-shaft power takeoff with an engaging/disengaging monitoring unit according to the present invention;
description of the reference numerals
In fig. 1:
1-power takeoff shell; 2-an output shaft; 3-an output bearing; 4-output shaft front cover; 5-an input bearing; 6-positioning sleeve; 7-compression spring; 8-a positioning pin; 9-bearing spacer; 10-circlip for hole; 11-a transmission gear; 12-a snap ring; 13-a drive gear; 14-active bearings; 15-cotter pin; 16-O-ring; 17-a piston shaft; 18-a cylinder head; 19-a driven gear; 20-output snap ring; 21-oil seal;
in fig. 2:
1-power takeoff shell; 2-a cylinder; 3-positioning sleeve; 301-boss; 4-a piston shaft; 401-positioning a shaft shoulder; 5-compression spring; 6-a monitoring unit; 601-mounting a housing; 602-indicator light; 603-a switch contact; 7-a sealing gasket; 8-bolt.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
A pneumatic control two-shaft power takeoff with a gear engaging/disengaging monitoring unit comprises a power takeoff shell 1, a cylinder 2, a positioning sleeve 3, a piston shaft 4 positioned in the cylinder 2 and a compression spring 5 sleeved on the front part of the piston shaft 4, wherein the positioning sleeve 3 is fixed on the power takeoff shell 1 through a hexagon bolt; the head of the piston shaft 4 is provided with a positioning shaft shoulder 401, and the piston shaft 4 is connected with the compression spring 5 through the positioning shaft shoulder 401; the monitoring device further comprises a monitoring unit 6, wherein the monitoring unit 6 comprises a mounting shell 601, an indicator lamp 602 arranged at the front end of the mounting shell 601, and a switch contact 603 arranged at the rear end of the mounting shell 601 and corresponding to the indicator lamp 602; the side part of the mounting shell 601 close to the rear end is provided with an external thread; the front end of the positioning sleeve 3 is provided with a boss 301, the center of the end face of the boss 301 is provided with a threaded hole and communicated with the cylinder 2, the threaded hole is matched with the external thread of the mounting shell 601, the mounting shell 601 of the monitoring unit 6 is screwed into the positioning sleeve 3 through threads, and a sealing washer 7 is arranged between the boss 301 of the positioning sleeve 3 and the mounting shell 601 of the monitoring unit 6; the position of the switch contact 603 and the stroke of the piston shaft 4 satisfy: when the power takeoff is in a gear engaging state, the piston shaft 4 moves axially to contact the switch contact 603.
The working process is as follows:
when the air pressure of the air vent on the cylinder cover is larger than the resilience force of the compression spring 5, the piston shaft 4 overcomes the resilience force of the compression spring 5 under the action of the air pressure, the piston shaft moves leftwards, the driving gear connected with the piston shaft 4 also moves leftwards and is meshed with the transmission gear, the shaft head of the piston shaft 4 presses the switch contact 603, the indicator light 602 is on, and the power takeoff can be monitored to be in a gear engaging state at the moment;
when no air pressure exists in the air vent on the cylinder cover or the air pressure is smaller than the resilience force of the compression spring 5, the piston shaft 4 moves rightwards under the resilience force of the compression spring 5, the driving gear is disconnected with the transmission gear, the shaft head of the piston shaft 4 is not in contact with the switch contact 603 at the moment, the indicator lamp 602 is turned off, and the power takeoff can be monitored to be in a gear-off state.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and it is obvious for a person skilled in the art to modify the specific technical solutions described in the foregoing embodiments or to equally replace some technical features of the embodiments, and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.
Claims (5)
1. A pneumatic control two-shaft power takeoff with a gear engaging/disengaging monitoring unit comprises a power takeoff shell (1), a cylinder (2), a positioning sleeve (3), a piston shaft (4) positioned in the cylinder (2) and a compression spring (5) sleeved on the front part of the piston shaft (4); the method is characterized in that: the monitoring device is characterized by further comprising a monitoring unit (6), wherein the monitoring unit (6) comprises a mounting shell (601), an indicator lamp (602) arranged at the front end of the mounting shell (601), and a switch contact (603) which is arranged at the rear end of the mounting shell (601) and corresponds to the indicator lamp (602);
the side part of the mounting shell (601) is provided with an external thread near the rear end;
the front end of the locating sleeve (3) is provided with a boss (301), the center of the end face of the boss (301) is provided with a threaded hole and communicated with the cylinder (2), the threaded hole is matched with the external thread of the mounting shell (601), and the position of the switch contact (603) and the stroke of the piston shaft (4) meet the following requirements: when the power takeoff is in a gear engaging state, the piston shaft (4) moves axially to contact the switch contact (603).
2. The pneumatically controlled two-shaft power take off with an engage/disengage monitoring unit as claimed in claim 1, wherein: and a sealing gasket (7) is arranged between the boss (301) of the positioning sleeve (3) and the mounting shell (601) of the monitoring unit (6).
3. The pneumatically controlled two-shaft power take-off with an engage/disengage monitoring unit according to any of claims 1 or 2, wherein: the head of the piston shaft (4) is provided with a positioning shaft shoulder (401), and the piston shaft (4) is connected with the compression spring (5) through the positioning shaft shoulder (401).
4. The pneumatically controlled two-shaft power take off with an engage/disengage monitoring unit of claim 3, wherein: the locating sleeve (3) is fixed on the power takeoff shell (1) through a bolt (8).
5. The pneumatically controlled two-shaft power take off with an engage/disengage monitoring unit of claim 4, wherein: the bolt (8) is a hexagon bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985135.6U CN210531584U (en) | 2019-06-27 | 2019-06-27 | Pneumatic control two-shaft power takeoff with gear engaging/disengaging monitoring unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985135.6U CN210531584U (en) | 2019-06-27 | 2019-06-27 | Pneumatic control two-shaft power takeoff with gear engaging/disengaging monitoring unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531584U true CN210531584U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985135.6U Active CN210531584U (en) | 2019-06-27 | 2019-06-27 | Pneumatic control two-shaft power takeoff with gear engaging/disengaging monitoring unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210531584U (en) |
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2019
- 2019-06-27 CN CN201920985135.6U patent/CN210531584U/en active Active
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