Steel wire rope balancing device

Abstract

The utility model discloses a steel wire rope balancing device which comprises a base, a connecting rod and a balancing arm, the base is arranged in an L shape, the connecting rod is rotatably arranged at the front end of the base, a cavity communicated with the outside is formed in the middle of the connecting rod, and the balancing arm is rotatably arranged in the cavity of the connecting rod and arranged in a rhombus shape. Wedge-shaped sockets are symmetrically arranged at the two ends of the balance arm and are in running fit with the balance arm, and protection mechanisms used for preventing the balance arm from suddenly and greatly rotating are symmetrically arranged on the inner bottom face of a cavity of the balance arm. The balance arm can be effectively prevented from suddenly and greatly rotating, and the service life of the balance arm is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field, especially a kind of steel wire rope balancing device. BACKGROUND

[0002] Crane balance arm is the core component to ensure the safe and stable operation of crane, and is used to balance the force of two steel wire rope ends.

[0003] According to the utility model patent file with the announcement No.CN207404685U, electromagnetic crane balance beam device is disclosed, including balance beam, the balance beam is rotatably connected with connecting plate, the connecting plate is fixedly arranged on frame, and the balance beam is provided with steel wire rope joint at both ends. The utility model skillfully adopts lever structure form to replace original rigging screw, so that the automatic adjusting principle of lever is relied on to ensure that steel wire rope is under consistent stress. The utility model optimizes structure layout, cancels screw, adopts balance beam adjustment, uses wedge-shaped joint to fix rope end, changes into door-shaped frame form, increases the height of column foundation, and is convenient for inspection, replacement, maintenance.

[0004] However, the above-mentioned balance beam mechanism still has certain deficiencies in the use process: when the steel wire rope on one side of the balance beam is suddenly subjected to a larger tension, the balance beam will suddenly perform a large amplitude circular motion, and after multiple such motions, the service life of the balance beam will be greatly reduced. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of steel wire rope balancing device, can effectively prevent balance arm suddenly perform large amplitude rotation, prolong the service life of balance arm.

[0006] The utility model adopts the following technical solutions:

[0007] A kind of steel wire rope balancing device, including base, connecting rod and balance arm,

[0008] The base is L-shaped, the connecting rod is rotatably arranged at the front end of the base, a cavity is formed in the middle part of the connecting rod, the balance arm is rotatably arranged in the cavity of the connecting rod,

[0009] The balance arm is diamond-shaped, wedge-shaped sockets are symmetrically arranged at both ends of the balance arm, and the wedge-shaped sockets are rotatably connected with the balance arm.

[0010] The inner bottom surface of the balance arm cavity is symmetrically provided with a protection mechanism for preventing the balance arm from suddenly performing a large amplitude rotation.

[0011] Optionally, a rotating shaft one is arranged through the front end of the base, the rotating shaft one is fixed to the base, and a self-lubricating bearing one is mounted on the surface of the rotating shaft one, and the self-lubricating bearing one is matched with the connecting rod.

[0012] Optionally, a rotating shaft two is arranged through the cavity of the connecting rod, the rotating shaft two is fixed with the connecting rod, and a self-lubricating bearing two is arranged on the surface of the rotating shaft two and matched with the balance arm.

[0013] Optionally, rotating shaft threes are symmetrically arranged at the two ends of the balance arm, the rotating shaft threes are fixed with the balance arm, shaft sleeves are arranged on the surfaces of the rotating shaft threes and fixedly matched with the wedge-shaped sockets.

[0014] Optionally, rotating shaft fours are arranged on the side surfaces of the wedge-shaped sockets, the rotating shaft fours are fixed with the wedge-shaped sockets, and pulleys are rotatably arranged on the surfaces of the rotating shaft fours.

[0015] Optionally, a fixing groove is arranged on each of the surfaces of the two ends of the rotating shaft one, the surface of one end of the rotating shaft two, the surface of one end of the rotating shaft three and the surface of one end of the rotating shaft four.

[0016] Optionally, a semicircular clamping plate one is clamped in the fixing groove of the rotating shaft one, and straight clamping plates two are clamped in the fixing grooves of the rotating shaft two, the rotating shaft three and the rotating shaft four.

[0017] Optionally, the protection mechanism comprises an oil frame one and an oil frame two, a push oil plate one is slidably arranged in the oil frame one, an upper end of the push oil plate one is fixedly provided with a top column, a rubber block is fixedly arranged on the upper end surface of the top column, a push oil plate two is slidably arranged in the oil frame two, and a reset spring is symmetrically fixed between the push oil plate two and the right inner wall of the oil frame two.

[0018] Optionally, the oil frame one and the oil frame two are fixedly connected together, an oil inlet hole is arranged on the connecting surface of the oil frame one and the oil frame two and close to the lower bottom surface, an inclined surface is arranged on the right surface of the push oil plate one and opposite to the oil inlet hole, and an inclined surface is also arranged on the left surface of the push oil plate two and opposite to the oil inlet hole.

[0019] Optionally, the upper ends of the oil frame one and the oil frame two are respectively and sealingly provided with a cover one and a cover two, and the top column penetrates the cover one and is slidably matched.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1、in the utility model, when the steel wire rope on one side of the balance arm suddenly bears a larger tension, the balance arm will suddenly make a large circular motion with the rotating shaft two as the axis, at this time, the balance arm will press the rubber block on one side, the top block drives the push oil plate one to slide downward in the oil frame one, the hydraulic oil enters the oil frame two through the oil inlet hole, and the push oil plate two is driven to move to the right side, because the aperture of the oil inlet hole is small, the oil outlet speed is slow, therefore, the push oil plate one will not suddenly drop, effectively preventing the sudden large rotation of the balance arm, and providing effective protection effect for the balance arm.

[0022] 2. The utility model discloses, through the bolt cooperation mode makes cardboard one and cardboard two to fixed pivot piece, convenient to dismantle maintenance to pivot piece. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure schematic diagram of the utility model;

[0024] Figure 2 It is structure schematic diagram of balance arm and connecting rod of the utility model;

[0025] Figure 3 It is partial structure schematic diagram of the utility model;

[0026] Figure 4 It is structure schematic diagram of protection mechanism of the utility model;

[0027] Figure 5 It is whole sectional view of the utility model;

[0028] Figure 6 It is the A place detail enlarged view of the utility model in Figure 5 .

[0029] In the drawing, 1, base; 2, connecting seat; 3, connecting rod; 4, balance arm; 5, wedge-shaped socket; 6, protection mechanism; 31, pivot one; 32, self-lubricating bearing one; 33, card board one; 41, pivot two; 411, self-lubricating bearing two; 42, pivot three; 421, shaft sleeve; 51, pivot four; 52, pulley; 61, oil frame one; 611, cover one; 62, oil frame two; 621, cover two; 63, push oil plate one; 631, jacks; 632, rubber block; 64, push oil plate two; 641, return spring; 65, oil inlet hole; 7, fixed groove; 8, card board two. DETAILED DESCRIPTION

[0030] The principles and spirits of the utility model are explained in detail below with reference to several representative embodiments of the utility model.

[0031] Please refer to Figures 1-6 , the utility model is described in detail below in combination with the drawings and examples:

[0032] As Figures 1-2 shown, a steel wire rope balancing device, including base 1, connecting rod 3, balance arm 4 and symmetrical protection mechanism 6 that sets up, the lower end of base 1 is fixedly installed with connecting seat 2 through bolt, and connecting seat 2 is fixed on crane,

[0033] Base 1 is L-shaped setting, connecting rod 3 is rotationally arranged at the front end of base 1, the middle position of connecting rod 3 is provided with the cavity that communicates with the outside, balance arm 4 is rotationally arranged in the cavity of connecting rod 3,

[0034] The balance arm 4 is rhombus-shaped, and the two ends of the balance arm 4 are symmetrically provided with wedge-shaped sockets 5 which are rotationally fitted with the balance arm 4, and the pulleys 52 are rotationally arranged in the wedge-shaped sockets 5 and are used in cooperation with the lifting steel wire ropes of the crane,

[0035] As shown in the figure, two protection mechanisms 6 are symmetrically arranged at the inner bottom surface of the connecting rod 3 and below the balance arm 4, so as to avoid the sudden large rotation of the balance arm 4 and thus avoid the damage of the balance arm 4. Figures 1-2

[0036] As shown in the figure, in the embodiment, the front end of the base 1 is provided with a rotating shaft one 31 which is fixed with the base 1, and the surface of the rotating shaft one 31 is provided with a self-lubricating bearing one 32 which cooperates with the connecting rod 3 to enable the connecting rod 3 to stably rotate on the surface of the rotating shaft one 31. Figures 2-3

[0037] As shown in the figure, in the embodiment, the cavity of the connecting rod 3 is provided with a rotating shaft two 41 which is fixed with the connecting rod 3, and the surface of the rotating shaft two 41 is provided with a self-lubricating bearing two 411 which cooperates with the balance arm 4 to enable the balance arm 4 to stably rotate on the surface of the rotating shaft two 41. Figures 2-3 The self-lubricating bearing one 32 and the self-lubricating bearing two 411 are prior art and will not be described in detail.

[0038] As shown in the figure, in the embodiment, the two ends of the balance arm 4 are symmetrically provided with rotating shafts three 42 which are fixed with the balance arm 4, and the surface of the rotating shafts three 42 is provided with shaft sleeves 421, and the wedge-shaped sockets 5 are fixedly arranged on the outer surface of the shaft sleeves 421 to enable the wedge-shaped sockets 5 to stably rotate on the surface of the rotating shafts three 42.

[0039] Figures 2-3 As shown in the figure, in the embodiment, the side surface of the wedge-shaped socket 5 is provided with a rotating shaft four 51 which is fixed with the wedge-shaped socket 5, and the pulley 52 is rotationally arranged on the surface of the rotating shaft four 51, and the lifting steel wire rope of the crane is inserted into the wedge-shaped socket 5 from the lower end opening of the wedge-shaped socket 5, then passes through the surface of the pulley 52, and then comes out from the lower end of the wedge-shaped socket 5, and the excess part of the steel wire rope is fixed by using a special steel wire rope clamp, and the steel wire rope clamp is prior art and will not be described in detail.

[0040] As shown in the figure, in the embodiment, the side surface of the wedge-shaped socket 5 is provided with a rotating shaft four 51 which is fixed with the wedge-shaped socket 5, and the pulley 52 is rotationally arranged on the surface of the rotating shaft four 51, and the lifting steel wire rope of the crane is inserted into the wedge-shaped socket 5 from the lower end opening of the wedge-shaped socket 5, then passes through the surface of the pulley 52, and then comes out from the lower end of the wedge-shaped socket 5, and the excess part of the steel wire rope is fixed by using a special steel wire rope clamp, and the steel wire rope clamp is prior art and will not be described in detail. Figures 2-3 As shown in the figure, in the embodiment, the side surface of the wedge-shaped socket 5 is provided with a rotating shaft four 51 which is fixed with the wedge-shaped socket 5, and the pulley 52 is rotationally arranged on the surface of the rotating shaft four 51, and the lifting steel wire rope of the crane is inserted into the wedge-shaped socket 5 from the lower end opening of the wedge-shaped socket 5, then passes through the surface of the pulley 52, and then comes out from the lower end of the wedge-shaped socket 5, and the excess part of the steel wire rope is fixed by using a special steel wire rope clamp, and the steel wire rope clamp is prior art and will not be described in detail.

[0041] Figures 2-3 ​​​​As shown, in this embodiment, the two end surfaces of the rotating shaft one 31, the one end surface of the rotating shaft two 41, the one end surface of the rotating shaft three 42 and the one end surface of the rotating shaft four 51 are all provided with fixing grooves 7, and the other ends of the rotating shaft two 41, the rotating shaft three 42 and the rotating shaft four 51 are all provided with cover plates, the diameter of the cover plate is greater than the diameter of the corresponding rotating shaft, which facilitates the installation of the rotating shaft.

[0042] As shown in the figure, Figures 2-3 As shown, the fixing groove 7 of the rotating shaft one 31 is clamped with a semicircular clamping plate one 33, after the clamping plate one 33 is clamped into the fixing groove 7 of the rotating shaft one 31, the two clamping plates one 33 are fixed together by bolts, and then the clamping plate one 33 and the base 1 are fixed by bolts, which can enhance the fixing effect of the rotating shaft one 31 and the base 1, and facilitate the disassembly and maintenance of the rotating shaft one 31.

[0043] As shown in the figure, Figures 4-6 As shown in the figure, in this embodiment, the fixing groove 7 of the rotating shaft two 41, the rotating shaft three 42 and the rotating shaft four 51 is clamped with a straight clamping plate two 8.

[0044] Specifically, after the clamping plate two 8 is clamped into the fixing groove 7 of the rotating shaft two 41, the clamping plate two 8 and the connecting rod 3 are fixed by bolts, which enhances the fixing effect of the rotating shaft two 41 and the connecting rod 3;

[0045] After the clamping plate two 8 is clamped into the fixing groove 7 of the rotating shaft three 42, the clamping plate two 8 and the balance arm 4 are fixed by bolts, which enhances the fixing effect of the rotating shaft three 42 and the balance arm 4;

[0046] After the clamping plate two 8 is clamped into the fixing groove 7 of the rotating shaft four 51, the clamping plate two 8 and the wedge-shaped socket 5 are fixed by bolts, which enhances the fixing effect of the rotating shaft four 51 and the wedge-shaped socket 5.

[0047] As shown in the figure, Figures 4-6 As shown in the figure, in this embodiment, the protection mechanism 6 includes an oil frame one 61 and an oil frame two 62, the oil frame one 61 is provided with a push oil plate one 63 sliding up and down, the upper end of the push oil plate one 63 is fixedly provided with a top column 631, and a rubber block 632 is fixedly arranged on the upper end surface of the top column 631, and the upper end of the rubber block 632 can be in contact with the lower inclined surface of the balance arm 4;

[0048] The oil frame two 62 is provided with a push oil plate two 64 sliding transversely, and a return spring 641 is fixedly arranged between the push oil plate two 64 and the right inner wall of the oil frame two 62, and in the state that the push oil plate two 64 is not stressed, the left inner wall of the oil frame two 62 is in contact with the push oil plate two 64 through the elastic force of the return spring 641, at this time, the oil frame one 61 is filled with hydraulic oil, and there is a small part of hydraulic oil in the oil frame two 62.

[0049] As shown in the figure, Figures 4-6As shown, in this embodiment, the oil frame one 61 and the oil frame two 62 are fixedly connected together, and the connecting surface of the oil frame one 61 and the oil frame two 62 is provided with an oil inlet hole 65 close to the lower bottom surface, so as to facilitate the hydraulic oil in the oil frame one 61 to enter the oil frame two 62.

[0050] As shown, in this embodiment, the right side surface of the oil pushing plate one 63 is provided with an inclined surface relative to the oil inlet hole 65, and the left side surface of the oil pushing plate two 64 is also provided with an inclined surface relative to the oil inlet hole 65. Figures 4-6

[0051] As shown, in this embodiment, the upper end of the oil frame one 61 and the oil frame two 62 are respectively provided with a cover one 611 and a cover two 621, so as to prevent the internal hydraulic oil from leaking out, and the top column 631 penetrates the cover one 611 and is in sliding fit, and the penetration position is also provided with a leakage prevention treatment. Figures 4-6

[0052] As shown, in this embodiment, the oil pushing plate one 63 in the oil frame one 61 divides the inner cavity of the oil frame one 61 into upper and lower two parts, the lower part is an oil storage cavity, and the hydraulic oil in the lower part will not enter the upper inner cavity, and the oil pushing plate two 64 in the oil frame two 62 divides the inner cavity of the oil frame two 62 into left and right two parts, and the oil in the left inner cavity will not enter the right inner cavity. ​

[0053] Specifically, when the steel wire rope on one side of the balance arm 4 suddenly receives a larger tension, the balance arm 4 will suddenly perform a large circular motion with the second rotating shaft 41 as the axis, at this time, the balance arm 4 will press the rubber block 632 on one side, so that the top block drives the oil pushing plate one 63 to slide downward in the oil frame one 61, the hydraulic oil enters the oil frame two 62 through the oil inlet hole 65, and drives the oil pushing plate two 64 to move to the right side. Since the aperture of the oil inlet hole 65 is small, the oil outlet speed is slow, so the oil pushing plate one 63 will not suddenly drop, effectively preventing the sudden large rotation of the balance arm 4, and providing effective protection effect for the balance arm 4. When the balance arm 4 returns to the original position, the reset spring 641 drives the oil pushing plate two 64 to reset, and at the same time, the hydraulic oil stored in the oil frame two 62 is pushed back to the oil frame one 61, facilitating the protection of the balance arm 4 next time.

[0054] ​​​The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0055] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0056] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A steel cable balancing device, characterized by: The base, the connecting rod and the balance arm, The base is L-shaped, the connecting rod is rotatably arranged at the front end of the base, a cavity is formed in the middle of the connecting rod and communicates with the outside, and the balance arm is rotatably arranged in the cavity of the connecting rod. The balance arm is diamond-shaped, and wedge-shaped sockets are symmetrically arranged at the two ends of the balance arm and rotatably connected with the balance arm. The inner bottom surface of the cavity of the balance arm is symmetrically provided with a protection mechanism for preventing the balance arm from suddenly rotating greatly.

2. A steel cable balancing device according to claim 1, characterized in that: A rotating shaft one is arranged at the front end of the base and fixed with the base, and a self-lubricating bearing one is arranged on the surface of the rotating shaft one and matched with the connecting rod.

3. A steel cable balancing device according to claim 2, characterized in that: A rotating shaft two is arranged in the cavity of the connecting rod and fixed with the connecting rod, and a self-lubricating bearing two is arranged on the surface of the rotating shaft two and matched with the balance arm.

4. A steel cable balancing device according to claim 3, characterized in that: Rotating shaft threes are symmetrically arranged at the two ends of the balance arm and fixed with the balance arm, and shaft sleeves are arranged on the surfaces of the rotating shaft threes and fixedly matched with the wedge-shaped sockets.

5. A steel cable balancing device according to claim 4, characterized in that: Rotating shaft fours are arranged on the side surfaces of the wedge-shaped sockets and fixed with the wedge-shaped sockets, and pulleys are rotatably arranged on the surfaces of the rotating shaft fours.

6. A steel cable balancing device according to claim 5, characterized in that: Fixed grooves are formed in the surfaces of the two ends of the rotating shaft one, one end of the rotating shaft two, one end of the rotating shaft three and one end of the rotating shaft four.

7. A steel cable balancing device according to claim 6, characterized in that: Half-circular clamping plates one are clamped in the fixed grooves of the rotating shaft one, and straight clamping plates two are clamped in the fixed grooves of the rotating shaft two, the rotating shaft three and the rotating shaft four.

8. A steel cable balancing device as defined in claim 1, wherein: The protection mechanism includes oil frames one and two, and a push oil plate one is slidably arranged in the oil frame one.

9. A steel cable balancing device according to claim 8, characterized in that: The oil frames one and two are fixedly connected together, and an oil inlet hole is formed in the connecting surface of the oil frames one and two and close to the lower bottom surface.

10. A steel cable balancing device according to claim 9, characterized in that: Sealing covers one and two are respectively arranged at the upper ends of the oil frames one and two, and the top post penetrates the sealing cover one and slidably matches with the sealing cover one. The right side surface of the push oil plate one is provided with an inclined surface relative to the oil inlet hole, and the left side surface of the push oil plate two is also provided with an inclined surface relative to the oil inlet hole.

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