CN203794521U - Limiting device for digging-pile small crane - Google Patents
Limiting device for digging-pile small crane Download PDFInfo
- Publication number
- CN203794521U CN203794521U CN201420128064.5U CN201420128064U CN203794521U CN 203794521 U CN203794521 U CN 203794521U CN 201420128064 U CN201420128064 U CN 201420128064U CN 203794521 U CN203794521 U CN 203794521U
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- China
- Prior art keywords
- switch
- line
- arm
- drag
- motor
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- Expired - Fee Related
Links
- 239000003351 stiffener Substances 0.000 claims description 13
- 230000002401 inhibitory effect Effects 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000009183 running Effects 0.000 description 5
- 239000004575 stone Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a limiting device for a digging-pile small crane. The device comprises a fixed upright post and a motor, wherein a lifting arm is mounted at the top end of the fixed upright post, a pulley is mounted at the far end of the lifting arm, a support pillar is further connected to the far end of the lifting arm, the motor is fixed at the near end of the lifting arm and is used for dragging a lifting arm drag rope to extend downward after bypassing the pulley along the lifting arm, and a lifting hook is connected to the lower end of the lifting arm drag rope. The device is characterized in that a limiting switch is mounted at the upper part of the support pillar and is close to the lifting arm drag rope below the pulley, wherein a switch prodding mechanism is fixed at the lifting arm drag rope above the lifting kook, the limiting switch is connected with a control circuit, and the motor is controlled by virtue of the control circuit. The limiting device has the beneficial effects that the ascending of a lifting bucket is automatically stopped when the lifting bucket is lift to approach the highest position, so that the lifting bucket is prevented from colliding the top, and the construction security is guaranteed; the structure of the device is applicable to the digging-pile small cranes for projects of railways, public roads, municipal engineering, hydroelectricity and the like.
Description
Technical field
The utility model relates to the little loop wheel machine inhibiting device of a kind of device of crane safety, particularly dug pile, is applicable to the realm of building construction.
Background technology
The development of capital construction in recent years; artificial digging pile is constantly applied to the engineerings such as railway, highway, municipal administration, water power; and when construction the loop wheel machine that adopts most of be field fabrication; there is no the safety method of secure context; the height that well-bucket rises is completely by people's eyes control, often because controlling the improper well-bucket accident of rushing to summit that occurs.
Utility model content
The purpose of this utility model is to provide a kind of dug pile little loop wheel machine inhibiting device.Automatically stop continuing to rise when well-bucket rises to while approaching extreme higher position, prevent that well-bucket from rushing to summit, ensure construction safety.Concrete technical scheme is as follows:
The little loop wheel machine inhibiting device of a kind of dug pile, comprise vertical columns and motor, wherein arm is installed on vertical columns top, described arm far-end is provided with pulley, this arm far-end is also connected with pillar stiffener, described motor is fixed on described arm near-end, draw arm drag-line and walking around the backward downward-extension of described pulley along this arm, arm drag-line lower end is connected with suspension hook, its key is: the top of described pillar stiffener is provided with limit switch, this limit switch is near the arm drag-line of described pulley below, the arm drag-line of described suspension hook top is fixed with switch shifting mechanism, described limit switch is connected with control circuit, motor described in this control circuit control.When well-bucket rises to certain position, the switch shifting mechanism on suspension hook touches limit switch, and motor power-off quits work, and has played spacing effect.
Described switch shifting mechanism is annulus, and this annulus is fixed on described arm drag-line through support level.Switch shifting mechanism is set to annular arrangement can alleviate the weight that arm bears.
Described limit switch is made up of the postive stop baffle and the auxiliary baffle plate that are arranged on described pillar stiffener, and wherein the upper end of postive stop baffle is hinged on pillar stiffener, and the middle part of postive stop baffle is overlapped on described auxiliary baffle plate, and described arm drag-line is pointed in the lower end of postive stop baffle.In the time that postive stop baffle is overlapped on auxiliary baffle plate, limit switch remains closed, and the forward circuit of control circuit is connected, and well-bucket is moved up by motor traction.When arm drag-line upward movement, switch shifting mechanism rises and collides postive stop baffle, and postive stop baffle separates with auxiliary baffle plate, and limit switch touches, and normally closed switch is opened, and the drag-line forward circuit of control circuit disconnects, and well-bucket stops mobile.
Described control circuit comprises manual stop button, and front termination power one end of this manual stop button manually connects the power supply other end after the rear end of stop button serial connection drag-line forward circuit, and the two ends of serial connection drag-line forward circuit also and be connected with drag-line negater circuit; When manually stop button is pressed, though running forward or backwards of motor, stop motion immediately; Drag-line forward circuit is connected, and the running of motor forward, up draws high well-bucket; Drag-line negater circuit is connected, and motor antiport, down transmits well-bucket.
Described drag-line forward circuit is composed in series successively by the normally closed switch of forward start button, described limit switch, contactless switch KM2, the coil of contactless switch KM1, and wherein forward start button is parallel with the first normal open switch of contactless switch KM1; Press forward start button, the running of motor forward; In the time that limit switch is collided, contactless switch KM1 coil blackout discharges, and motor shuts down.
Described drag-line downstream circuitry is composed in series successively by the normally closed switch of reverse starting button, contactless switch KM1, the coil of contactless switch KM2, and wherein said reverse starting button is parallel with the normal open switch of contactless switch KM2;
The second normal open switch of described contactless switch KM1 is serially connected in the forward current supply circuit of described motor; When forward start button is pressed, the running of motor forward.
The second normal open switch of described contactless switch KM2 is serially connected in the reversion current supply circuit of described motor.When reverse starting button is pressed, motor antiport.
The utlity model has following beneficial effect:
The little loop wheel machine inhibiting device of described dug pile, rises to well-bucket and while approaching extreme higher position, automatically stops continuing to rise, and prevents that well-bucket from rushing to summit, and ensures construction safety.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of limit switch closure state in the utility model;
Fig. 3 is limit switch open mode schematic diagram in the utility model;
Fig. 4 is that in the utility model, control circuit connects schematic diagram.
In figure: 1, vertical columns; 2, arm; 3, motor; 4, pillar stiffener; 5, pulley; 6, arm drag-line; 7, suspension hook; 8, limit switch; 9, switch shifting mechanism; 10, control circuit; 11, postive stop baffle; 12, auxiliary baffle plate; 13, manual stop button; 14, forward start button; 15, reverse starting button.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model, the little loop wheel machine inhibiting device of a kind of dug pile, comprise vertical columns 1 and motor 3, wherein arm 2 is installed on vertical columns 1 top, described arm 2 far-ends are provided with pulley 5, these arm 2 far-ends are also connected with pillar stiffener 4, described motor 3 is fixed on described arm 2 near-ends, draw arm drag-line 6 and walking around the backward downward-extension of described pulley 5 along this arm 2, described arm drag-line 6 lower ends are connected with suspension hook 7, its key is: the top of described pillar stiffener 4 is provided with limit switch 14, this limit switch 14 is near the arm drag-line 6 of described pulley 5 belows, the arm drag-line 6 of described suspension hook 7 tops is fixed with switch shifting mechanism 7, described limit switch 8 is connected with control circuit 10, this control circuit 10 is controlled described motor 3.
Fig. 2 is the schematic diagram of limit switch closure state in this practicality, described limit switch 14 is made up of the postive stop baffle 11 and the auxiliary baffle plate 12 that are arranged on described pillar stiffener 4, wherein the upper end of postive stop baffle 11 is hinged on pillar stiffener 4, the middle part of postive stop baffle 11 is overlapped on described auxiliary baffle plate 12, and described arm drag-line 6 is pointed in the lower end of postive stop baffle 11; Now, limit switch 8 presents closure state.
Fig. 3 is limit switch open mode schematic diagram in this practicality, and described limit switch 8 is collided, and postive stop baffle 11 separates with auxiliary baffle plate 12, and now, limit switch 8 presents open mode.
Fig. 4 is control circuit schematic diagram in the utility model, described control circuit 10 comprises manual stop button 13, front termination power one end of this manual stop button 13, manually after the rear end of stop button 13 string drag-line forward circuit, connect the power supply other end, the two ends of string drag-line forward circuit also and be connected with drag-line negater circuit;
Described drag-line forward circuit is composed in series successively by the normally closed switch of forward start button 14, described limit switch 8, contactless switch KM2, the coil of contactless switch KM1, and wherein forward start button 14 is parallel with the first normal open switch of contactless switch KM1;
Described drag-line negater circuit is composed in series successively by the normally closed switch of reverse starting button 15, contactless switch KM1, the coil of contactless switch KM2, and wherein said reverse starting button 15 is parallel with the normal open switch of contactless switch KM2;
The second normal open switch of described contactless switch KM1 is serially connected in the forward current supply circuit of described motor 3;
The second normal open switch of described contactless switch KM2 is serially connected in the reversion current supply circuit of described motor 3.
In conjunction with schematic diagram above, two kinds of mode of operations of the present utility model:
The first normal working, as shown in Figure 1 and Figure 4, in the time carrying out cubic meter cleaning work, first, well-bucket is filled to the native stone that will carry, press forward start button 14, contactless switch KM1 closes, drag-line forward circuit is connected, motor 3 forward runnings, now limit switch 8 presents closed condition as shown in Figure 2, the arm drag-line 6 that well-bucket is driven by motor 3 upwards draws high, arrival needs position, press manual halt switch 13, control circuit 10 disconnects, motor 3 shuts down, well-bucket stops rising, arm 2 turns to the position of stacking the cubic metre of earth and stone, press direction start button 15, contactless switch KM2 closes, drag-line negater circuit is connected, the arm drag-line 6 that motor 3 drives is placed well-bucket downwards, arrival needs position, press manual halt switch 13, motor 3 shuts down, the cubic metre of earth and stone in well-bucket is cleaned out, press forward start button 14, well-bucket is risen to certain altitude, press manual halt switch 13, arm 2 goes back to the place that needs cleaning, presses reverse starting button 15, puts down well-bucket, fill the native stone that needs cleaning, then rise, stop, rotate, transfer, stop, rising, stop, rotating ... work successively.
The second telpher position limitation protection state, the height rising due to well-bucket is completely by people's eyes control, in the time that operator does not control the rise height of well-bucket in time, switching toggle machine 9 on well-bucket collides postive stop baffle 11, limit switch 8 presents open mode as shown in Figure 3, contactless switch KM1 coil blackout discharges, and motor 3 shuts down; Then swinging boom 2, presses reverse starting button 15 and transfers well-bucket, continues normally to work.
The little loop wheel machine inhibiting device of described dug pile, rises to well-bucket and while approaching extreme higher position, automatically stops continuing to rise, and prevents that well-bucket from rushing to summit, and ensures construction safety.The little loop wheel machine of stake that digs that this structure is applicable to the engineerings such as railway, highway, municipal administration, water power uses.
Groundwork of the present utility model only above, not does any restriction to the utility model, everyly according to the utility model, it is carried out to equivalent variations and modification, all within technical solutions of the utility model protection domain.
Claims (4)
1. the little loop wheel machine inhibiting device of dug pile, comprise vertical columns (1) and motor (3), wherein arm (2) is installed on vertical columns (1) top, described arm (2) far-end is provided with pulley (5), this arm (2) far-end is also connected with pillar stiffener (4), described motor (3) is fixed on described arm (2) near-end, draw arm drag-line (6) and walking around the backward downward-extension of described pulley (5) along this arm (2), arm drag-line (6) lower end is connected with suspension hook (7), it is characterized in that: the top of described pillar stiffener (4) is provided with limit switch (8), this limit switch (8) is near the arm drag-line (6) of described pulley (5) below, the arm drag-line (6) of described suspension hook (7) top is fixed with switch shifting mechanism (9), described limit switch (8) is connected with control circuit (10), this control circuit (10) is controlled described motor (3).
2. according to the little loop wheel machine inhibiting device of a kind of dug pile described in claim l, it is characterized in that: described switch shifting mechanism (9) is annulus, and this annulus is fixed on described arm drag-line (6) through support level.
3. according to the little loop wheel machine inhibiting device of a kind of dug pile described in claim l, it is characterized in that: described limit switch (8) is made up of the postive stop baffle (11) and the auxiliary baffle plate (12) that are arranged on described pillar stiffener (4), wherein the upper end of postive stop baffle (11) is hinged on pillar stiffener (4), it is upper that the middle part of postive stop baffle (11) is overlapped on described auxiliary baffle plate (12), and described arm drag-line (6) is pointed in the lower end of postive stop baffle (11).
4. the little loop wheel machine inhibiting device of a kind of dug pile according to claim 1, it is characterized in that: described control circuit (12) comprises manual stop button (13), front termination power one end of this manual stop button (13), manually after the rear end of stop button (13) serial connection drag-line forward circuit, connect the power supply other end, the two ends of serial connection drag-line forward circuit also and be connected with drag-line negater circuit;
Described drag-line forward circuit is composed in series successively by the normally closed switch of forward start button (14), described limit switch (8), contactless switch KM2, the coil of contactless switch KM1, and wherein forward start button (14) is parallel with the first normal open switch of contactless switch KM1;
Described drag-line negater circuit is composed in series successively by the normally closed switch of reverse starting button (15), contactless switch KM1, the coil of contactless switch KM2, and wherein said reverse starting button (15) is parallel with the normal open switch of contactless switch KM2;
The second normal open switch of described contactless switch KM1 is serially connected in the forward current supply circuit of described motor (3);
The second normal open switch of described contactless switch KM2 is serially connected in the reversion current supply circuit of described motor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128064.5U CN203794521U (en) | 2014-03-20 | 2014-03-20 | Limiting device for digging-pile small crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128064.5U CN203794521U (en) | 2014-03-20 | 2014-03-20 | Limiting device for digging-pile small crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794521U true CN203794521U (en) | 2014-08-27 |
Family
ID=51376755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420128064.5U Expired - Fee Related CN203794521U (en) | 2014-03-20 | 2014-03-20 | Limiting device for digging-pile small crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203794521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621272A (en) * | 2014-11-04 | 2016-06-01 | 无锡晟欧船舶设备有限公司 | Boat crane |
-
2014
- 2014-03-20 CN CN201420128064.5U patent/CN203794521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621272A (en) * | 2014-11-04 | 2016-06-01 | 无锡晟欧船舶设备有限公司 | Boat crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |