CN212250311U - Starter protection system for forklift - Google Patents
Starter protection system for forklift Download PDFInfo
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- CN212250311U CN212250311U CN202021470959.9U CN202021470959U CN212250311U CN 212250311 U CN212250311 U CN 212250311U CN 202021470959 U CN202021470959 U CN 202021470959U CN 212250311 U CN212250311 U CN 212250311U
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Abstract
The utility model relates to a starter protection system for fork truck, including battery B, its positive pole links to each other with starting switch's power input B +, the one end of first fuse F1 respectively, and the other end of first fuse F1 links to each other with electromagnetism master switch K1's first contact a, electromagnetism master switch K1's second contact B and starter's controlling means M; the first output end ON of the starting switch is connected with one end of a second fuse F2, the other end of the second fuse F2 is respectively connected with one end of a coil of an electromagnetic main switch K1 and a movable contact of a starting relay K3, the other end of the coil of the electromagnetic main switch K1 is connected with a power supply end S1 of a time relay K2, and a static contact of the starting relay K3 is connected with the movable contact of the electromagnetic switch K5 of the starter. The utility model discloses fork truck starter to in starting has had fine guard action, also has certain protect function to the fork truck security performance after putting out fire simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the protection of fork truck starter technique and specifically relates to a starter protection system for fork truck.
Background
The forklift starter is a short-time working electrical equipment, is used for starting a forklift, drives an engine to work through the work of the starter, and stops working after the engine works.
At present, fork truck starting system generally all is the start-up and flame-out that the whole car of fork truck was realized to cooperation starting switch use, and the easy problem that appears of market feedback fork truck starting system has two kinds of situations: firstly, after the forklift is started, the forklift starter is still in a working state, and the starter which works for a short time is very easy to damage; secondly, after the forklift is flamed out, the starter control device is directly connected with the positive end of the storage battery, so that the self-starting phenomenon of the starter easily occurs.
Above two kinds of circumstances, fork truck's starting system all has certain potential safety hazard, very easily causes starter damage and incident.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a there is a starter protection system for fork truck who starts the safety problem under can effectively reducing fork truck uses and flame-out back two kinds of states.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a starter protection system for a forklift comprises a storage battery B, wherein the positive electrode of the storage battery B is respectively connected with a power input end B + of a starting switch and one end of a first fuse F1, the other end of the first fuse F1 is connected with a first contact a of an electromagnetic master switch K1, and a second contact B of the electromagnetic master switch K1 is connected with a control device M of a starter; the first output end ON of the starting switch is connected with one end of a second fuse F2, the other end of the second fuse F2 is respectively connected with one end of a coil of an electromagnetic master switch K1 and a movable contact of a starting relay K3, the other end of the coil of the electromagnetic master switch K1 is connected with a power supply end S1 of a time relay K2, and a static contact of the starting relay K3 is connected with the movable contact of the electromagnetic switch K5 of the starter; the second output end Starter of the starting switch is connected with one end of a third fuse F3, the other end of the third fuse F3 is respectively connected with one end of a coil of a starting relay K3 and a control end S2 of a time relay K2, the other end of the coil of a starting relay K3 is connected with a movable contact of a neutral switch K4, and a static contact of the neutral switch K4 and a negative end S3 of the time relay K2 are both connected with the negative electrode of the storage battery B.
The time relay K2 is a timing relay, and the set time is 5 seconds.
The neutral switch K4 is a normally open type waterproof switch.
And the electromagnetic switch K5 of the starter and the grounding end of the control device M are grounded through the whole vehicle body.
According to the above technical scheme, the beneficial effects of the utility model are that: firstly, the utility model discloses an use electromagnetism master switch K1, control battery B and starter controlling means M's connected mode, combine time relay K2's use, realize protecting the starter of short-time work system, the application in the fork truck trade has not only realized the protection to fork truck starter in the start-up process, also realized after putting out fire, through electromagnetism master switch K1 lose electricity, initiatively break off battery B and starter controlling means M's being connected, the self-starting phenomenon that appears with fork truck starter under flame-out state is thoroughly eliminated; second, the utility model discloses a starting switch is at ON shelves state, starting relay K3 coil end is electrified and electromagnetism master switch K1 is in operating condition, starting switch is at Starter shelves state, starting relay K3 is in operating condition, the Starter starts, thereby whole car starts, time relay K2 receives starting switch after Starter shelves signal 5S, cut off electromagnetism master switch K1 operating condition, cut off Starter working power supply, the protection to the Starter under the state after having realized whole car starts; thirdly, when the whole vehicle is in a flameout state, a circuit of the storage battery B directly connected to the starter control device M is cut off through the electromagnetic main switch K1, and the self-starting phenomenon of the starter in the flameout state is avoided; fourth, the utility model discloses fork truck starter to in starting has had fine guard action, also has certain protect function to the fork truck security performance after putting out fire simultaneously.
Drawings
Fig. 1 is a circuit block diagram of the present invention.
Detailed Description
As shown in fig. 1, a starter protection system for a forklift includes a battery B, the positive pole of which is connected to a power input terminal B + of a starter switch 1 and one end of a first fuse F1, the other end of the first fuse F1 is connected to a first contact a of an electromagnetic master switch K1, and a second contact B of the electromagnetic master switch K1 is connected to a control device M of a starter 2; the first output end ON of the starting switch 1 is connected with one end of a second fuse F2, the other end of the second fuse F2 is respectively connected with one end of a coil of an electromagnetic master switch K1 and a movable contact of a starting relay K3, the other end of the coil of the electromagnetic master switch K1 is connected with a power supply end S1 of a time relay K2, and a static contact of the starting relay K3 is connected with the movable contact of the electromagnetic switch K5 of the starter 2; the second output end Starter of the starting switch 1 is connected with one end of a third fuse F3, the other end of the third fuse F3 is respectively connected with one end of a coil of a starting relay K3 and a control end S2 of a time relay K2, the other end of the coil of a starting relay K3 is connected with a movable contact of a neutral switch K4, and a static contact of the neutral switch K4 and a negative end S3 of the time relay K2 are both connected with the negative electrode of the storage battery B.
The time relay K2 is a timing relay, and the set time is 5 seconds.
The neutral switch K4 is a normally open type waterproof switch.
The electromagnetic switch K5 of the starter 2 and the grounding end of the control device M are grounded through the whole vehicle body.
When the electric vehicle works, firstly, the neutral switch K4 is closed, the rotary starting switch 1 is switched ON to an ON gear, the storage battery B supplies power to the starting relay K3 and the electromagnetic main switch K1, the starting relay K3 is electrified, and the electromagnetic main switch K1 is electrified;
secondly, the rotary starting switch 1 is switched on to the Starter gear, the starting relay K3 is electrified to work to supply power to the electromagnetic switch K5 of the Starter 2, and when the electromagnetic switch K5 of the Starter 2 is electrified to work, the control device M of the Starter 2 works, so that the whole vehicle is started;
thirdly, after the time relay K2 receives a Starter shift signal of the starting switch 1 and delays for 5 seconds, the power supply end S1 and the negative electrode end S3 of the time relay K2 are disconnected, the coil of the electromagnetic main switch K1 loses power, the first contact a and the second contact b of the electromagnetic main switch K1 are disconnected, and the starting machine 2 stops working;
finally, if the Starter gear is actively disconnected by the starting switch 1, the Starter 2 stops working; otherwise, returning to the previous step, starter 2 stops operating.
The present invention will be further described with reference to fig. 1.
The Starter gear port of the rotary starting switch 1 is switched ON, the Starter relay K3 receives a Starter gear signal of the starting switch 1, the coil end of the starting relay K3 is controlled to be electrified, so that the contact end of the starting relay K3 is controlled to be closed, the contact of the starting relay K3 is closed and then provides a power supply for the electromagnetic switch K5 of the Starter 2 through the ON gear of the starting switch 1, the electromagnetic switch K5 of the Starter 2 is electrified to work, the control device M of the Starter 2 starts to work, and the whole vehicle is started. After receiving the Starter shift signal 5S of the Starter switch 1, the time relay K2 cuts off the coil end circuit of the electromagnetic main switch K1, the coil of the electromagnetic main switch K1 is not operated after power failure, the first contact a and the second contact b of the electromagnetic main switch K1 are disconnected, the control device M of the Starter 2 is not operated, and the Starter 2 is not operated.
When the neutral switch K4 is operated to be switched ON, the starting switch 1 is rotated to an ON gear position, one end of a contact of the starting relay K3 is electrified, the coil end of the electromagnetic main switch K1 is electrified to work, so that two ends of the contact of the electromagnetic main switch K1 are switched ON, the control device M of the starter 2 is electrified, and the starter 2 is in a waiting working state. Rotatory starting switch 1 is put to the Starter gear position, battery B gives the power supply of starting relay K3 coil through starting switch 1Starter shelves this moment, starting relay K3 coil gets electric work back, control starting relay K3 contact both ends actuation, battery B passes through starting switch 1ON shelves, the contact both ends after starting relay K3 actuation are given Starter 2 electromagnetic switch K5 power supply, Starter 2 electromagnetic switch K5 gets electric work back, Starter 2 controlling means M begins to work, thereby whole car starts. Meanwhile, the time relay K2 receives a signal of a Starter shift of the starting switch 1, after 5S timing, a coil circuit of the electromagnetic main switch K1 is cut off, after a coil of the electromagnetic main switch K1 is powered off, a contact of the electromagnetic main switch K1 is disconnected, the storage battery B does not supply power to the control device M of the Starter 2 any more, the whole vehicle is started at the moment, and the Starter 2 stops working.
The whole vehicle is grounded and communicated with the ground, the neutral switch K4 is a normally open switch, and the starting relay K3 can be electrified and operated only on the premise that the neutral switch K4 is closed, so that the whole vehicle can not be started in a gear; time relay K2 is a timer, after the control end S2 receives the Starter shift signal at the output end of Starter switch 1, the power end S1 and the negative end S3 of time relay K2 are disconnected, the coil of electromagnetic master switch K1 loses power, the first contact a and the second contact B of electromagnetic master switch K1 are disconnected, and electromagnetic master switch K does not work, so that the storage battery B is disconnected to supply power to Starter motor 2, and the protection effect on Starter motor 2 is achieved.
Under the condition that the whole vehicle has a starting condition, the storage battery B is used as a system power supply and directly supplies power to the first contact a of the electromagnetic main switch K1 and the starting switch 12. The neutral switch K4 is not closed, the rotary starting switch 1 is switched ON to an ON gear, and the whole vehicle is not started;
under the condition that the whole vehicle has a starting condition, the storage battery B is used as a system power supply and directly supplies power to the first contact a of the electromagnetic main switch K1 and the starting switch 1. After the neutral switch K4 is closed, the rotary starting switch 1 is switched ON to an ON gear, the coil of the electromagnetic main switch K1 is electrified to work, the first contact a and the second contact b of the electromagnetic main switch K1 are driven to be closed to work, power is supplied to the control device M of the starter 2, the contact end of the starting relay K3 is electrified, and the whole vehicle is not started;
under the condition that the whole vehicle has a starting condition, the storage battery B is used as a system power supply and directly supplies power to the contact end of the electromagnetic main switch K1 and the starting switch 1. After the neutral switch K4 is closed, the rotary starting switch 1 is switched ON to an ON gear, the coil end of the electromagnetic main switch K1 is electrified to work, a first contact a and a second contact b of the electromagnetic main switch K1 are driven to be closed to work, power is supplied to the Starter 2 control device M, the contact end of the starting relay K3 is electrified, the rotary starting switch 1 is continuously switched ON to a Starter gear, the coil end of the starting relay K3 is electrified to work, the contact end of the starting relay K3 is driven to be closed to work, power is supplied to the Starter 2 electromagnetic switch K5, the electromagnetic switch K5 is electrified to work, the Starter 2 control device M starts to work, and the whole vehicle is started;
after the whole vehicle is started, the starting switch 1 returns to an ON gear connection state, and the coil end of the starting relay K3 loses electricity and does not work, so that the two ends of the contact of the starting relay K3 are controlled to be disconnected and do not work, the electromagnetic switch K5 of the starter 2 loses electricity and stops working, the starter 2 stops working, and the whole vehicle is in a working state;
after the whole vehicle is started, the starting switch 1 is kept in a starter gear on-off state, a time relay K2 control end S2 disconnects a coil end of an electromagnetic main switch K1 to a circuit of a cathode of a storage battery B through a time relay K2 after receiving a starter switch 1starter gear signal 5S, the coil end of the electromagnetic main switch K1 is power-off and does not work, meanwhile, two ends of a contact of the electromagnetic main switch K1 are disconnected, so that the starter 2 is disconnected with the anode of the storage battery B, the starter 2 is power-off and stops working, and the whole vehicle is in a working state;
after the whole vehicle is flamed out, the starting switch 1 is kept in an OFF gear on state, the coil end of the electromagnetic main switch K1 loses electricity and does not work, the two ends of the contact of the electromagnetic main switch K1 are controlled to be disconnected, the anode of the storage battery B is disconnected to supply power to the control device M of the starter 2, and the starter 2 does not work.
To sum up, the utility model discloses an use electromagnetism master switch K1, control battery B and starter motor 2 controlling means M's connected mode, combine time relay K2's use, the realization is protected starter motor 2 of short-time work system, the protection to fork truck starter motor 2 in the starting process has not only been realized to the application of fork truck trade, flameout back has also been realized, lose the electricity through electromagnetism master switch K1, initiative disconnection battery B and starter motor 2 controlling means M's be connected, thoroughly eliminate the self-starting phenomenon that fork truck starter motor 2 appears under flameout state.
Claims (4)
1. A starter protection system for a forklift, characterized in that: the device comprises a storage battery B, wherein the positive electrode of the storage battery B is respectively connected with a power supply input end B + of a starting switch (1) and one end of a first fuse F1, the other end of the first fuse F1 is connected with a first contact a of an electromagnetic master switch K1, and a second contact B of the electromagnetic master switch K1 is connected with a control device M of a starting machine (2); the first output end ON of the starting switch (1) is connected with one end of a second fuse F2, the other end of the second fuse F2 is respectively connected with one end of a coil of an electromagnetic master switch K1 and a movable contact of a starting relay K3, the other end of the coil of the electromagnetic master switch K1 is connected with a power supply end S1 of a time relay K2, and a static contact of the starting relay K3 is connected with the movable contact of the electromagnetic switch K5 of the starter (2); the second output end Starter of the starting switch (1) is connected with one end of a third fuse F3, the other end of the third fuse F3 is respectively connected with one end of a coil of a starting relay K3 and a control end S2 of a time relay K2, the other end of the coil of a starting relay K3 is connected with a movable contact of a neutral switch K4, and a static contact of the neutral switch K4 and a negative end S3 of the time relay K2 are both connected with the negative electrode of the storage battery B.
2. The starter protection system for a forklift according to claim 1, wherein: the time relay K2 is a timing relay, and the set time is 5 seconds.
3. The starter protection system for a forklift according to claim 1, wherein: neutral switch K4 is the waterproof switch of normal open type.
4. The starter protection system for a forklift according to claim 1, wherein: and the electromagnetic switch K5 of the starter (2) and the grounding end of the control device M are grounded through the whole vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470959.9U CN212250311U (en) | 2020-07-23 | 2020-07-23 | Starter protection system for forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470959.9U CN212250311U (en) | 2020-07-23 | 2020-07-23 | Starter protection system for forklift |
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| Publication Number | Publication Date |
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| CN212250311U true CN212250311U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021470959.9U Active CN212250311U (en) | 2020-07-23 | 2020-07-23 | Starter protection system for forklift |
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| CN (1) | CN212250311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852714A (en) * | 2020-07-23 | 2020-10-30 | 安徽合力股份有限公司 | Starter protection system for forklift and start protection method thereof |
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2020
- 2020-07-23 CN CN202021470959.9U patent/CN212250311U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852714A (en) * | 2020-07-23 | 2020-10-30 | 安徽合力股份有限公司 | Starter protection system for forklift and start protection method thereof |
| CN111852714B (en) * | 2020-07-23 | 2024-02-13 | 安徽合力股份有限公司 | Starter protection system for forklift and start protection method thereof |
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