A trolley anchoring device and a crane

Abstract

The present invention discloses a trolley anchoring device and a crane, which are used for anchoring the trolley of a crane. The device relates to the field of crane control technology and solves the technical problems of wasteful labor and untimely anchoring in harsh environments in related technologies for trolley anchoring of cranes. The trolley anchoring device includes an anchor pin and a push-pull mechanism. The trolley is provided with an anchor hole that matches the anchor pin. The push-pull mechanism is connected to one end of the anchor pin. The push-pull mechanism is used to push or pull the anchor pin out of the anchor hole when the anchor pin is aligned with the anchor hole. This converts the previous manual operation of the anchor pin into a mechanical automatic operation, freeing up labor and improving labor intensity. Furthermore, the device does not affect the timely anchoring operation even in harsh environments such as strong winds, achieving a timely and safe effect.

Description

Technical Field

[0001] The present invention relates to the technical field of crane control, and in particular to a trolley anchoring device and a crane. Background Art

[0002] Cranes such as overhead cranes and gantry cranes need to anchor their trolleys when experiencing sustained winds above level 6. When sustained wind speeds fall below level 6, hoisting operations must resume, requiring the trolley to be unanchored. Currently, anchoring and unanchoring the trolley requires the cooperation of two operators: one in the cab, operating the motion commands, while the other operates the anchor pins on the trolley platform, selecting the appropriate time to anchor or unanchor the equipment. This results in a significant waste of manpower. This is particularly true during sudden high winds, as the second operator cannot arrive in time, resulting in equipment not being anchored in time. This is an urgent need for improvement. Summary of the Invention

[0003] The present application provides a trolley anchoring device and a crane, which solve the technical problems in the related art of crane trolley anchoring, such as waste of manpower and untimely anchoring in harsh environments.

[0004] The present application provides a trolley anchoring device for anchoring the trolley of a crane. The trolley anchoring device includes an anchoring pin and a push-pull mechanism. The trolley is provided with an anchoring hole that cooperates with the anchoring pin. The push-pull mechanism is connected to one end of the anchoring pin. The push-pull mechanism is used to push or pull the anchoring pin out of the anchoring hole when the anchoring pin is facing the anchoring hole.

[0005] Optionally, the anchor pin includes a pin body and a baffle connected to the pin body, the pin body is configured to be pushed in or pulled out from the anchor hole, and the trolley anchoring device further includes a two-way paddle mechanism, the two-way paddle mechanism including:

[0006] a connecting rod rotatably mounted on the crane;

[0007] A first paddle is connected to one end of the connecting rod and is arranged on the moving path of the trolley;

[0008] A second paddle is connected to the other end of the connecting rod and is arranged on the moving path of the paddle when the push-pull mechanism drives the anchor pin to move;

[0009] When the trolley moves to the point where the anchor pin is aligned with the anchor hole, the trolley triggers the first paddle to move, thereby driving the second paddle to move away from the moving path of the blocking piece through the connecting rod.

[0010] Optionally, the push-pull mechanism includes an elastic member and an auxiliary rod, the two ends of the elastic member are respectively connected to the auxiliary rod and the anchor pin, and the auxiliary rod is configured with a first fixed point and a second fixed point on the crane so that the elastic member is in a compressed state and a stretched state respectively.

[0011] Optionally, the elastic member includes a spring, and two ends of the spring are respectively connected to the auxiliary rod and the anchor pin;

[0012] The push-pull mechanism also includes a guide rod, one end of which is fixedly connected to the anchor pin, and the guide rod is also connected to the auxiliary rod. The guide rod passes through the spring and is arranged along the axis of the spring.

[0013] Optionally, the first fixing point and the second fixing point are respectively provided with a fixing seat, the fixing seat is provided with an insertion rod, the bottom of the auxiliary rod is cylindrical, and the auxiliary rod is inserted into the insertion rod of the fixing seat.

[0014] Optionally, the fixing seat is installed on a walkway of the crane, and the walkway is also provided with a guardrail, and the auxiliary rod is detachably connected to the guardrail by screws.

[0015] Optionally, the trolley anchoring device further includes an auxiliary seat, which is fixed in the crane, and the connecting rod is rotatably mounted on the auxiliary seat. The auxiliary seat is provided with a through hole for the anchor pin to pass through and enter the anchor hole.

[0016] Optionally, the connecting rod is mounted on the auxiliary seat via a bearing.

[0017] A crane comprises a trolley, a grab and the above-mentioned trolley anchoring device. The trolley is provided with an anchoring hole matched with an anchoring pin of the trolley anchoring device, and the grab is connected to the trolley.

[0018] Optionally, the type of crane includes a ship unloader, an overhead crane or a gantry crane.

[0019] The beneficial effects of the present application are as follows: The present application provides a trolley anchoring device for anchoring the trolley of a crane, including an anchoring pin for anchoring operations, and the corresponding trolley is provided with an anchoring hole, which is used in conjunction with the anchoring pin. In order to solve the problem in the related art that one person operates the driver's cab and the other operates the anchoring pin, and in a harsh environment such as strong winds, it is not conducive to the staff operating the anchoring pin, the present device is separately provided with a push-pull mechanism, and the push-pull mechanism is connected to one end of the anchoring pin to directly drive the anchoring pin to move. When the trolley needs to be anchored, the staff operates the driver's cab to move the trolley near the anchoring pin until it is anchored. The pin and the anchor hole are distributed in the same straight line. At this time, the push-pull mechanism automatically pushes the anchor pin into the anchor hole to realize the anchoring operation of the trolley; when the trolley needs to be unanchored, first contact the pulling force of the trolley under the trolley, such as the grab bucket, so that the anchor hole and the anchor pin are adjusted from the double-hole misaligned state to the double-hole concentric state, and then the anchor pin is automatically pulled out of the anchor hole under the action of the push-pull mechanism; through the above device, the manual operation of the anchor pin is converted into mechanical automatic operation, which liberates labor and improves labor intensity. Moreover, it does not affect the timely anchoring operation in harsh environments such as strong winds, and has timely and safe effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention.

[0021] Figure 1 A schematic diagram of the overall structure of a trolley anchoring device provided in this application;

[0022] Figure 2 for Figure 1 Schematic diagram of the local structure in.

[0023] Drawing markings: 100-anchor pin, 110-blocking piece, 200-push-pull mechanism, 210-elastic member, 220-auxiliary rod, 221-first fixed point, 222-second fixed point, 223-screw, 230-guide rod, 240-fixing seat, 241-insertion rod, 300-bidirectional paddle mechanism, 310-connecting rod, 320-first paddle, 330-second paddle, 400-auxiliary seat, 410-bearing, 20-trolley, 21-anchor hole, 22-strike block, 30-walkway, 31-guardrail. DETAILED DESCRIPTION

[0024] The embodiments of the present application provide a trolley anchoring device and a crane, thereby solving the technical problems in the related art of crane trolley anchoring, such as waste of manpower and untimely anchoring in harsh environments.

[0025] The technical solution in the embodiments of the present application is to solve the above technical problems, and the overall idea is as follows:

[0026] A trolley anchoring device is used for anchoring the trolley of a crane. The trolley anchoring device includes an anchor pin and a push-pull mechanism. The trolley is provided with an anchor hole that cooperates with the anchor pin. The push-pull mechanism is connected to one end of the anchor pin. The push-pull mechanism is used to push or pull the anchor pin out of the anchor hole when the anchor pin is facing the anchor hole.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Please refer to Figure 1 and Figure 2 This embodiment discloses a trolley anchoring device for anchoring the trolley 20 of a crane. The trolley anchoring device includes an anchor pin 100 and a push-pull mechanism 200. The trolley 20 is provided with an anchor hole 21 that cooperates with the anchor pin 100. The push-pull mechanism 200 is connected to one end of the anchor pin 100. The push-pull mechanism 200 is used to push or pull the anchor pin 100 from the anchor hole 21 when the anchor pin 100 is facing the anchor hole 21.

[0029] Specifically, in order to solve the problem in the related art that one person operates the driver's cab while another person operates the anchor pin 100, there are disadvantages such as difficulty in coordination and occupation of personnel when operating the two people. In addition, if the anchor pin 100 is operated manually in a harsh environment such as strong wind, rain or snow, it will be difficult to operate in time, resulting in the defect of untimely anchoring. Therefore, a trolley anchoring device is disclosed, which is combined with Figure 1 and Figure 2 As shown, the trolley 20 includes an anchor pin 100 and an anchor hole 21 that matches the anchor pin 100 , and the anchor pin 100 is inserted into the anchor hole 21 .

[0030] It should be noted that when the grab bucket connected to the trolley 20 below the trolley 20 is in a strained state, the anchor pin 100 and the anchor hole 21 are in a double-hole misaligned state. In the double-hole misaligned state, the anchor pin 100 rubs against the inner wall of the anchor hole 21, and there is a reaction force, which causes the anchor pin 100 to be stationary, preventing the anchor pin 100 from falling off from the anchor hole 21; when the grab bucket is suspended and in a non-stressed state, the anchor pin 100 and the anchor hole 21 return to a double-hole concentric state, so that the subsequent anchoring operation can be smoothly released.

[0031] The trolley anchoring device includes a push-pull mechanism 200 , which is used to push or pull the anchor pin 100 from the anchor hole 21 when the anchor pin 100 is facing the anchor hole 21 . In detail, the pushing mechanism is connected to one end of the anchor pin 100 to directly drive the anchor pin 100 to move. When the trolley 20 needs to be anchored, the staff operates the driver's cab to move the trolley 20 near the anchor pin 100 until the anchor pin 100 and the anchor hole 21 are in the same straight line. At this time, the push-pull mechanism 200 automatically pushes the anchor pin 100 into the anchor hole 21 to achieve the anchoring operation of the trolley 20; when the trolley 20 needs to be unanchored, first contact the pulling force of the grab bucket on the trolley 20 below, so that the anchor hole 21 and the anchor pin 100 are adjusted from the double-hole misaligned state to the double-hole concentric state, and then the anchor pin 100 is automatically pulled out of the anchor hole 21 under the action of the push-pull mechanism 200.

[0032] Through the above device, the manual operation of the anchor pin 100 is converted into mechanical automatic operation, which liberates labor, improves labor intensity, and does not affect the timely anchoring operation in harsh environments such as strong winds, and has the beneficial effects of timeliness and safety.

[0033] Regarding converting manual operation of the anchor pin 100 into a mechanical automatic operation through the push-pull mechanism 200, it involves determining when the anchor pin 100 is aligned with the anchor hole 21, that is, how to smoothly push the anchor pin 100 into the anchor hole 21. In one possible implementation, by providing a visual unit, a signal collection point is further provided near the anchor hole 21 of the trolley 20 to determine the relative state of the anchor hole 21 and the anchor pin 100. Of course, this method involves too many components and a relatively complex design. In another possible implementation, the push-pull mechanism 200 is used to press the anchor pin 100 for a long time, and when the anchor hole 21 of the trolley 20 is moved into position, the anchor pin 100 is smoothly pushed into the anchor hole 21.

[0034] Regarding the smooth insertion of the anchor pin 100 into the anchor hole 21 when the anchor hole 21 is moved into position, it involves limiting the anchor pin 100 when the anchor hole 21 has not yet moved into position, and releasing the limit on the anchor pin 100 when the anchor hole 21 is moved into position. Figure 1 and Figure 2 The trolley anchoring device further includes a bidirectional paddle mechanism 300 , which includes a connecting rod 310 and a first paddle 320 and a second paddle 330 respectively disposed at both ends of the connecting rod 310 .

[0035] Specifically, the anchor pin 100 includes a pin body and a blocking piece 110 connected to the pin body, so that the pin body is configured to be pushed into or pulled out of the anchor hole 21. Figure 2 In the bidirectional paddle mechanism 300, the connecting rod 310 is rotatably mounted on the crane, the first paddle 320 is arranged on the moving path of the trolley 20, and the second paddle 330 is arranged on the moving path of the baffle 110 when the push-pull mechanism 200 drives the anchor pin 100 to move. In combination with the push-pull mechanism 200, there is always a pressing force on the anchor pin 100. When the trolley 20 does not need to be anchored and the anchor hole 21 is away from the anchor pin 100, the second paddle 330 hinders the blocking piece 110, that is, hinders the movement of the anchor pin 100, thereby preventing the anchor pin 100 from being squeezed off; when anchoring is required, the trolley 20 moves into position, and the first paddle 320 is located on the moving path of the trolley 20, that is, the trolley 20 will touch the first paddle 320, thereby causing the connecting rod 310 to rotate, and then driving the second paddle 330 to move away, specifically away from the moving path of the blocking piece 110 when the push-pull mechanism 200 drives the anchor pin 100 to move, so that the push-pull mechanism 200 can smoothly push the anchor pin 100 into the anchor hole 21.

[0036] Regarding the movement of the car 20 to touch the first paddle 320, as shown Figure 2 As shown, a special striking block 22 can be installed at a preset position on the trolley 20 , and then when the trolley 20 moves, the striking block 22 interferes with the movement of the first paddle 320 , causing the first paddle 320 to move accordingly.

[0037] Regarding the two-way paddle mechanism 300, during the repeated operations of anchoring and unanchoring, a reset operation is involved, that is, after unanchoring, the first paddle 320 of the two-way paddle mechanism 300 needs to be moved to a preset state to meet the next anchoring operation. Optionally, it can be reset automatically or manually, and the automatic reset refers to existing related technologies such as the torsion spring method.

[0038] Regarding the setting that the push-pull mechanism 200 always has a pressing force on the anchor pin 100, a method of long-term force output through the prime mover can be selected, such as a small motor long-term torque output; an elastic member 210 made of elastic material can also be used to use the elastic force of the elastic member 210 to drive the movement of the anchor pin 100.

[0039] Alternatively, as Figure 1 As shown, the push-pull mechanism 200 includes an elastic member 210 and an auxiliary rod 220. The ends of the elastic member 210 are connected to the auxiliary rod 220 and the anchor pin 100, respectively. The auxiliary rod 220 is configured with a first fixing point 221 and a second fixing point 222 on the crane, which respectively keep the elastic member 210 in a compressed state and a stretched state. When the auxiliary rod 220 is fixed to the first fixing point 221, the elastic member 210 is short and compressed, constantly pressing the stopper 110 of the anchor pin 100 against the second stopper 110. This pushes the anchor pin 100 into the anchor hole 21 when the trolley 20 is moved into position, achieving anchoring. When the auxiliary rod 220 is fixed to the second fixing point 222, the elastic member 210 is long and stretched, applying tension to the anchor pin 100. This pulls the anchor pin 100 out of the anchor hole 21 when the two holes return to a concentric state. It can be understood that the use of the elastic member 210 has the advantages of simple material selection, reliable function, low cost, sensitive action, no need for control, high degree of automation, etc., and has outstanding beneficial effects.

[0040] Regarding the elastic member 210, in one possible implementation, Figure 1 As shown, the elastic member 210 includes a spring, the ends of which are connected to the auxiliary rod 220 and the anchor pin 100, respectively. The push-pull mechanism 200 also includes a guide rod 230, one end of which is fixedly connected to the anchor pin 100. The guide rod 230 is also connected to the auxiliary rod 220. The guide rod 230 is inserted through the spring and arranged along the spring axis. The provision of the guide rod 230 regulates the direction of the spring's expansion and contraction, which improves the stability of the structure and the direction of the spring's interaction force on the anchor pin 100.

[0041] Regarding the fixing direction of the auxiliary rod 220 at the first fixing point 221 and the second fixing point 222, optionally, as Figure 1As shown, the first and second fixing points 221, 222 are each provided with a fixing base 240, each equipped with an insertion rod 241. The bottom of the auxiliary rod 220 is cylindrical, and the auxiliary rod 220 is inserted into the insertion rod 241 of the fixing base 240. During fixing, the bottom cylindrical structure of the auxiliary rod 220 is placed on the insertion rod 241 of the fixing base 240, so that the insertion rod 241 is inserted into the auxiliary rod 220, thereby limiting the degrees of freedom in all directions except the height direction. It can also be understood that the tension or compression force exerted by the elastic member 210 on the auxiliary rod 220 further strengthens the fixing effect of the auxiliary rod 220.

[0042] Further, if Figure 1 As shown, the fixing seat 240 is installed on the walkway 30 of the crane. The walkway 30 is also provided with a guardrail 31. The auxiliary rod 220 is detachably connected to the guardrail 31 by screws 223. The position stability of the auxiliary rod 220 is enhanced by adding screws 223, and the operation is convenient, making full use of the existing scene elements of the crane and having a wide range of usage scenarios.

[0043] Regarding the rotatable mounting of the crane on the connecting rod 310, optionally, as Figure 2 As shown, the trolley anchoring device also includes an auxiliary seat 400, which is fixed to the crane. The connecting rod 310 is rotatably mounted on the auxiliary seat 400. The auxiliary seat 400 is provided with a through-hole for the anchor pin 100 to pass through and enter the anchor hole 21. The auxiliary seat 400 not only provides a mounting position for the connecting rod 310, but also assists in the movement direction of the anchor pin 100 by providing the through-hole. That is, when the anchor pin 100 is inserted into the through-hole, the orientation and subsequent movement direction of the anchor pin 100 are defined, which facilitates the subsequent smooth advancement into the anchor hole 21.

[0044] Regarding the connecting rod 310 being rotatably mounted on the auxiliary seat 400, optionally, as Figure 2 As shown, the connecting rod 310 is mounted on the auxiliary seat 400 through a bearing 410 .

[0045] In one possible implementation scheme, the connecting rod 310 is cylindrical, and the axial direction of the connecting rod 310 is consistent with the movement direction of the anchor pin 100 , that is, it is also consistent with the axial direction of the through hole of the auxiliary seat 400 .

[0046] In one possible implementation manner, the movement direction of the anchor pin 100 and the movement direction of the trolley 20 are perpendicular to each other.

[0047] This embodiment also discloses a crane, including a trolley 20, a grab and the above-mentioned trolley anchoring device. The trolley 20 is provided with an anchoring hole 21 that cooperates with the anchoring pin 100 of the trolley anchoring device. The grab is connected to the trolley 20, which facilitates automatic anchoring operations and automatic unanchoring, and has an outstanding effect in anchoring.

[0048] Optionally, applicable cranes disclosed in this embodiment include ship unloaders, overhead cranes, or gantry cranes, all of which can be used in actual scenarios.

[0049] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0050] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A trolley anchoring device, characterized in that: A trolley anchoring device for a crane comprises an anchor pin and a push-pull mechanism, wherein the trolley is provided with an anchor hole that matches the anchor pin, and the push-pull mechanism is connected to one end of the anchor pin, and the push-pull mechanism is used to push or pull the anchor pin from the anchor hole when the anchor pin is aligned with the anchor hole; The anchor pin includes a pin body and a blocking piece connected to the pin body, wherein the pin body is configured to be pushed into or pulled out of the anchor hole; The trolley anchoring device further includes a bidirectional paddle mechanism, which includes: a connecting rod rotatably mounted on the crane; a first paddle connected to one end of the connecting rod and arranged on the moving path of the trolley; a second paddle connected to the other end of the connecting rod and arranged on a moving path of the baffle when the push-pull mechanism drives the anchor pin to move; When the trolley moves to the point where the anchor pin is aligned with the anchor hole, the trolley triggers the first paddle to move, thereby driving the second paddle to move away from the moving path of the blocking piece through the connecting rod; The push-pull mechanism includes an elastic member and an auxiliary rod, wherein both ends of the elastic member are connected to the auxiliary rod and the anchor pin respectively, and the auxiliary rod is provided with a first fixing point and a second fixing point on the crane so as to keep the elastic member in a compressed state and a stretched state respectively; The trolley anchoring device also includes an auxiliary seat, which is fixed in the crane. The connecting rod is rotatably mounted on the auxiliary seat. The auxiliary seat is provided with a through hole for the anchor pin to pass through and enter the anchor hole.

2. The trolley anchoring device according to claim 1, characterized in that: The elastic member includes a spring, and two ends of the spring are respectively connected to the auxiliary rod and the anchor pin; The push-pull mechanism further includes a guide rod, one end of which is fixedly connected to the anchor pin, and the guide rod is also connected to the auxiliary rod. The guide rod passes through the spring and is arranged along the axis of the spring.

3. The trolley anchoring device according to claim 1 or 2, characterized in that: The first fixing point and the second fixing point are respectively provided with a fixing seat, the fixing seat is provided with an insertion rod, the bottom of the auxiliary rod is provided in a cylindrical shape, and the auxiliary rod is inserted into the insertion rod of the fixing seat.

4. The trolley anchoring device according to claim 3, characterized in that: The fixing seat is installed on the walkway of the crane. The walkway is also provided with a guardrail. The auxiliary rod is detachably connected to the guardrail by screws.

5. The trolley anchoring device according to claim 1, characterized in that: The connecting rod is mounted on the auxiliary seat through a bearing.

6. A crane, characterized in that: include: The trolley anchoring device according to any one of claims 1 to 5; a trolley provided with an anchoring hole cooperating with the anchoring pin of the trolley anchoring device; A grab bucket is connected to the trolley.

7. The crane according to claim 6, wherein: The types of cranes include ship unloaders, overhead cranes or gantry cranes.

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