Residue type upper pulley device capable of weighing

Abstract

The utility model discloses a sinking type weighable upper pulley device in the field of pulleys, which comprises a base and a rotating support at the top of the base, the top of the rotating support is rotatably connected with a balancing piece, two ends of the balancing piece are rotatably connected with connecting pieces, the base is provided with a sliding through hole, and the inner wall of the sliding through hole of the base is slidably connected with a weighing part. The bottom of the weighing part is rotatably connected with a fixed pulley, the bottom of the weighing part is connected with a damping assembly, the stability of the pulley for weighing can be effectively improved through the device, and compared with a traditional device, the device adopts a vertical sliding mode for weighing, so that the pulley can be prevented from inclining; therefore, the weighing accuracy of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a sinking type weighable upper pulley device. Background Art

[0002] At present, the pulley weighing devices widely used in large and medium-sized lifting machinery generally adopt a three-pulley weighing structure. In order to ensure that the wire rope is always in a tensioned state, the spacing between the three pulleys is small and the wire rope winding form is relatively complicated, which reduces the service life of the wire rope and increases the difficulty of wire rope replacement and maintenance, seriously affecting the safety and economy of crane use.

[0003] A Chinese patent with the announcement number CN105460788A discloses a pulley weighing device, which is characterized in that a weighing pulley is arranged on one side of the main structure of the crane by an adjustable bracket and is arranged perpendicular to the top pulley. The weighing pulley is adjusted by the adjustable bracket to the tangent point position where the steel wire rope extrusion force on the weighing pulley is the maximum. The weighing pulley is then fixed to the main structure by a bolt assembly, so that the shaft pin type sensor can accurately determine the tension of the steel wire rope after calibration. Compared with the existing technology, the present invention has a simple structure, easy installation, and good reliability. By adjusting the position of the pulley support seat, it is ensured that the steel wire rope always squeezes the weighing pulley to the maximum extent, so that the shaft pin type sensor can accurately determine the tension of the steel wire rope through calibration. The weighing error is small, ensuring the accuracy of the weighing result, effectively solving the problem of the short service life of the steel wire rope, and facilitating the replacement and maintenance of the steel wire rope.

[0004] However, the above-mentioned disclosed solution has the following shortcomings: the above-mentioned solution achieves the weighing effect by pressing the pulley with a heavy object. In actual use, the above-mentioned device is prone to tilt during the rotation of the pulley, resulting in inaccurate weighing results. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] The purpose of the present invention is to address the technical problems existing in the background technology. The present invention proposes a sinking type weighable upper pulley device. The present invention can effectively improve the stability of the pulley for weighing through this device. Compared with traditional devices, this device adopts a vertical sliding method for weighing, which can avoid the pulley from tilting, thereby improving the weighing accuracy of the device.

[0007] The utility model proposes a sinking type weighable upper pulley device, which includes a base and a rotating bracket on the top thereof, the top of the rotating bracket is rotatably connected to a balancing member, the two ends of the balancing member are rotatably connected to connecting members, the base is provided with a sliding through hole, the inner wall of the sliding through hole of the base is slidably connected to a weighing component, the bottom of the weighing component is rotatably connected to a fixed pulley, and the bottom of the weighing component is connected to a damping assembly.

[0008] By adopting the above technical solution, the present solution can effectively improve the connection stability of the device through the combination of the rotating bracket and the balancing member, and reduce the influence of the lateral tension on the device.

[0009] Preferably, the weighing component includes a lifting bracket slidingly connected to the base, the bottom of the lifting bracket is rotatably connected to the fixed pulley, the outer side of the bottom of the lifting bracket is connected to the damping assembly, and a rotating shaft is provided through the bottom of the lifting bracket, one end of the rotating shaft is in contact with the damping assembly, and the other end of the rotating shaft is connected to the fixed pulley.

[0010] By adopting the above technical solution, the present solution can effectively control the rotation speed of the fixed pulley through the structure of the damping component, thereby avoiding problems such as decreased weighing accuracy due to excessive rotation of the fixed pulley.

[0011] Preferably, the top of the lifting bracket is rotatably connected to a rotating part, the outer arc surface of the rotating part is connected to a rotating connecting rod, the other end of the rotating connecting rod is rotatably connected to a spring bracket, the bottom of the spring bracket is slidably connected to the base, the side of the spring bracket is connected to a spring, the other end of the spring is connected to a spring plate, and the spring plate is connected to the top of the base.

[0012] By adopting the above technical solution, the present solution can effectively improve the elastic buffering stability of the present device through the combination of the spring and the spring plate, and reduce the risk of excessive sliding of the present device.

[0013] Preferably, a pressing plate is connected to the inner side of the top of the lifting bracket, a pressing sensor is connected to the bottom of the pressing plate, and the bottom of the pressing sensor is connected to the base.

[0014] By adopting the above technical solution, the present solution can effectively improve the transmission stability of the device through the structure of the pressing plate, and detect the current downward pulling force by detecting the downward sliding distance of the lifting bracket.

[0015] Preferably, the damping assembly includes an arc-shaped damping member and a threaded rod, the two arc-shaped damping members are symmetrically arranged on the side of the rotating shaft, the two arc-shaped damping members are slidingly connected to the outer side of the lifting bracket, the threaded rod is rotationally connected to one of the arc-shaped damping members, and the threaded rod is threadedly connected to the other arc-shaped damping member.

[0016] By adopting the above technical solution, the present solution can control the clamping force of the arc-shaped damping member through the structure of the threaded rod, thereby achieving the effect of controlling the rotation speed of the fixed pulley.

[0017] Preferably, the fixed pulleys are distributed at equal intervals on both sides of the inner wall of the lifting bracket, and the lifting bracket is symmetrically arranged on both sides of the pressure sensor.

[0018] By adopting the above technical solution, the present solution can make the device evenly stressed through the symmetrical lifting bracket structure.

[0019] Preferably, the rotating member and the rotating connecting rod are symmetrically distributed at both ends of the outer side of the lifting bracket, and a transmission shaft is provided passing through the rotating member, and the transmission shaft is rotatably connected to the top side of the lifting bracket.

[0020] By adopting the above technical solution, this solution can ensure the stable rotation connection of the rotating part through the structure of the transmission shaft.

[0021] In summary, the present invention has at least one of the following beneficial effects:

[0022] This device can effectively measure the weight of goods during the lifting and handling process. Through the combination of symmetrical rotating parts and rotating connecting rods, this device can achieve the effect of lifting and sliding buffering of the lifting bracket. The damping component of this device can control the rotation speed of the fixed pulley, thereby avoiding changes in the weighing result caused by the fixed pulley rotating too fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a front view of an embodiment of a sinking type weighable upper pulley device of the utility model;

[0025] Figure 2 This is a schematic structural diagram of a weighing component in an embodiment of the present utility model;

[0026] Figure 3 This is a structural diagram of a fixed pulley in an embodiment of the present utility model;

[0027] Figure numerals: 1. base; 2. rotating bracket; 3. balancing member; 4. connecting member; 5. weighing component; 501. lifting bracket; 502. pressing plate; 503. pressing sensor; 504. rotating member; 505. rotating connecting rod; 506. spring bracket; 507. spring; 508. spring plate; 6. fixed pulley; 7. damping assembly. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 The utility model is described in further detail.

[0029] Example 1, as Figure 1-Figure 3 As shown, in order to solve the existing problems, in this embodiment, the utility model discloses a sinking type weighable upper pulley device, including a base 1 and a rotating bracket 2 on the top thereof, the top of the rotating bracket 2 is rotatably connected to a balancing member 3, and the two ends of the balancing member 3 are rotatably connected to connecting members 4, the base 1 is provided with a sliding through hole, and the inner wall of the sliding through hole of the base 1 is slidably connected to a weighing component 5, the bottom of the weighing component 5 is rotatably connected to a fixed pulley 6, and the bottom of the weighing component 5 is connected to a damping assembly 7.

[0030] The weighing component 5 includes a lifting bracket 501 that is slidingly connected to the base 1, the bottom of the lifting bracket 501 is rotatably connected to the fixed pulley 6, the outer side of the bottom of the lifting bracket 501 is connected to the damping assembly 7, and a rotating shaft is provided through the bottom of the lifting bracket 501, one end of the rotating shaft is in contact with the damping assembly 7, and the other end of the rotating shaft is connected to the fixed pulley 6.

[0031] The top of the lifting bracket 501 is rotatably connected to a rotating part 504, the outer arc surface of the rotating part 504 is connected to a rotating connecting rod 505, the other end of the rotating connecting rod 505 is rotatably connected to a spring bracket 506, the bottom of the spring bracket 506 is slidably connected to the base 1, the side of the spring bracket 506 is connected to a spring 507, the other end of the spring 507 is connected to a spring plate 508, and the spring plate 508 is connected to the top of the base 1.

[0032] A pressing plate 502 is connected to the inner side of the top of the lifting bracket 501 , a pressing sensor 503 is connected to the bottom of the pressing plate 502 , and the bottom of the pressing sensor 503 is connected to the base 1 .

[0033] The damping assembly 7 includes an arc-shaped damping member and a threaded rod. The two arc-shaped damping members are symmetrically arranged on the side of the rotating shaft. The two arc-shaped damping members are slidingly connected to the outer side of the lifting bracket 501. The threaded rod is rotationally connected to one of the arc-shaped damping members, and the threaded rod is threadedly connected to the other arc-shaped damping member.

[0034] The specific working principle is: this device can effectively improve the detection accuracy of the weight of the raw materials during the use of the fixed pulley 6. Compared with the traditional device, the structure of this device is more centralized and can effectively ensure that the device will not tilt or shake.

[0035] The connection method using the top balance member 3 can ensure that the part of the structure below the base 1 of the device is in a vertical state when lateral swing occurs. When the device is in use, a connecting steel cable is added to the fixed pulley 6 to connect the device to the lifting structure. At the same time, the lifting bracket 501 of the device slides downward under the pull of the lifting structure.

[0036] As the lifting bracket 501 slides downward, the pressing plate 502 moves downward and presses down the pressing sensor 503. At the same time, as the lifting bracket 501 rises and slides, the rotating member 504 can rotate. The rotation of the rotating member 504 can enable the rotating connecting rod 505 to push the spring bracket 506 to slide, thereby compressing the spring 507. At this time, the spring 507 has a buffering effect on the downward sliding of the lifting bracket 501.

[0037] The reading of the pressure sensor 503 can facilitate the accurate weighing detection of the device.

[0038] Example 2, as Figure 1-Figure 3 As shown, in order to solve the existing problems, based on the same concept as the above-mentioned embodiment 1, this sinking type weighable upper pulley device also includes: the fixed pulleys 6 are evenly spaced on both sides of the inner wall of the lifting bracket 501, the lifting bracket 501 is symmetrically arranged on both sides of the press sensor 503, the rotating member 504 and the rotating connecting rod 505 are symmetrically distributed at both ends of the outer side of the lifting bracket 501, and a transmission shaft is provided inside the rotating member 504, which is rotatably connected to the top side of the lifting bracket 501.

[0039] The specific working principle is: this device can effectively improve the buffering and supporting effect of the lifting bracket 501, and the buffering effect of the spring 507 can prevent the lifting bracket 501 from sliding downward excessively, thereby causing damage to the press sensor 503.

[0040] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A weighable upper pulley device of the sinking type, comprising a base (1) and a rotating bracket (2) on the top thereof, wherein the top of the rotating bracket (2) is rotatably connected to a balancing member (3), characterized in that: The two ends of the balancing member (3) are rotatably connected to connecting members (4), the base (1) is provided with a sliding through hole, the inner wall of the sliding through hole of the base (1) is slidably connected to a weighing component (5), the bottom of the weighing component (5) is rotatably connected to a fixed pulley (6), and the bottom of the weighing component (5) is connected to a damping component (7).

2. A weighable upper pulley device according to claim 1, characterized in that: The weighing component (5) includes a lifting bracket (501) slidably connected to the base (1), the bottom of the lifting bracket (501) is rotatably connected to the fixed pulley (6), the outer side of the bottom of the lifting bracket (501) is connected to the damping component (7), and a rotating shaft is provided through the bottom of the lifting bracket (501), one end of the rotating shaft is in contact with the damping component (7), and the other end of the rotating shaft is connected to the fixed pulley (6).

3. A weighable upper pulley device according to claim 2, characterized in that: The top of the lifting bracket (501) is rotatably connected to a rotating member (504), the outer arc surface of the rotating member (504) is connected to a rotating connecting rod (505), the other end of the rotating connecting rod (505) is rotatably connected to a spring bracket (506), the bottom of the spring bracket (506) is slidably connected to the base (1), the side of the spring bracket (506) is connected to a spring (507), the other end of the spring (507) is connected to a spring plate (508), and the spring plate (508) is connected to the top of the base (1).

4. A weighable upper pulley device according to claim 3, characterized in that: The inner side of the top of the lifting bracket (501) is connected to a pressing plate (502), the bottom of the pressing plate (502) is connected to a pressing sensor (503), and the bottom of the pressing sensor (503) is connected to the base (1).

5. The weighable upper pulley device according to claim 4, characterized in that: The damping assembly (7) comprises an arc-shaped damping member and a threaded rod, wherein the two arc-shaped damping members are symmetrically arranged on the side of the rotating shaft, the two arc-shaped damping members are slidingly connected to the outer side of the lifting bracket (501), the threaded rod is rotationally connected to one of the arc-shaped damping members, and the threaded rod is threadedly connected to the other arc-shaped damping member.

6. A weighable upper pulley device according to claim 5, characterized in that: The fixed pulleys (6) are distributed at equal intervals on both sides of the inner wall of the lifting bracket (501), and the lifting bracket (501) is symmetrically arranged on both sides of the pressure sensor (503).

7. The weighable upper pulley device according to claim 6, characterized in that: The rotating member (504) and the rotating connecting rod (505) are symmetrically distributed at both ends of the outer side of the lifting bracket (501). A transmission shaft is provided inside the rotating member (504), and the transmission shaft is rotatably connected to the top side of the lifting bracket (501).

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