Elevator capable of weighing

Abstract

The elevator comprises a rack, a weighing mechanism is arranged at the bottom of the rack, the weighing mechanism comprises a first weighing table and a second weighing table, a material trolley is arranged on the first weighing table in a sliding mode, and a material hopper is movably arranged in the material trolley; a first groove is formed in the bottom of the first weighing platform, the second weighing platform is clamped with the first groove, and a pressure sensor is arranged on the second weighing platform; lifting mechanisms are arranged on the two sides of the first weighing platform, the first weighing platform is fixedly connected with the lifting mechanisms, a driving mechanism is arranged on the top of the rack, and a controller and the pressure sensor are arranged on the rack and electrically connected with the driving mechanism and the controller. According to the utility model, materials can be directly weighed, the damage to equipment in the lifting process caused by the fact that the pressure sensor is in a weighing state all the time is avoided, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoists, and particularly relates to a weighable hoist. Background Art

[0002] A hoist is a large mechanical device that completes the transportation process by a power machine dragging a flexible wire rope and the transported goods up and down, such as a mine hoist, a dam-hoisting machine, etc. Broadly speaking, elevators, overhead cranes, winches, steady winches, cranes, hoists for opening and closing gates, etc. can all be called hoists. A hoist generally refers to a large mechanical device with a relatively large power and a strong lifting capacity. In the existing pipeline processing, usually after weighing the required weight of materials, the materials are put into a material cart, and then the material cart is pushed onto the hoist platform, and the hoist completes the transportation of the materials. However, the hoist itself does not have a weighing function, this operation is very cumbersome, and during the process of pushing the material cart into the hoist, if the materials spill out, it will cause a large weighing error and low production efficiency. Content of the Utility Model

[0003] Based on the above background, the purpose of the utility model is to provide a weighable hoist.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A weighable hoist includes a frame. A weighing mechanism is provided at the bottom of the frame. The weighing mechanism includes a first weighing platform and a second weighing platform. A material cart is slidably arranged on the first weighing platform, and a material hopper is movably arranged in the material cart for loading and unloading materials;

[0006] A first groove is provided at the bottom of the first weighing platform. The second weighing platform is engaged with the first groove. The second weighing platform is fixedly arranged at the bottom of the frame, and a pressure sensor is arranged on the second weighing platform;

[0007] Lifting mechanisms are arranged on both sides of the first weighing platform. Each lifting mechanism includes a first sprocket, a second sprocket and a first chain. The first sprocket and the second sprocket are respectively arranged at the upper and lower ends of the first chain and are meshed with the inner side of the first chain. The first weighing platform is fixedly connected with the side of the first chain through a first fixing block. The first sprocket and the second sprocket are respectively rotatably connected to the upper and lower ends of the frame;

[0008] A driving mechanism is provided at the top of the frame to provide a power source for the lifting of the lifting mechanism;

[0009] A controller is arranged on the frame. The pressure sensor, the driving mechanism and the controller are electrically connected.

[0010] Preferably, four groups of lifting mechanisms are provided and are evenly distributed on both sides of the first weighing platform;

[0011] A first connecting rod is fixedly arranged between two first sprockets on any one side of the first weighing platform. The two first sprockets on any one side of the first weighing platform are connected by the first connecting rod. By driving one set of lifting mechanisms, the other set of lifting mechanisms on the same side can be driven to lift synchronously, and the setting of the four sets of lifting mechanisms can improve the stability of the first weighing platform during the lifting process.

[0012] Preferably, the driving mechanism includes a driving motor. The driving motor is fixedly arranged outside the frame. A first gear and a second gear are arranged outside the frame. The first gear and the second gear are meshed and connected. The output end of the driving motor is connected to the first gear. The first gear is coaxially and fixedly connected to one of the first sprockets through a connecting shaft.

[0013] A third sprocket, a fourth sprocket and a second chain are arranged on the frame. The third sprocket and the fourth sprocket are respectively arranged at both inner ends of the second chain and are meshed and connected with the second chain. The third sprocket is coaxially connected to the second gear through a connecting shaft. The fourth sprocket is coaxially connected to one of the first sprockets on the side of the first weighing platform away from the first gear through a connecting shaft.

[0014] Preferably, four first sliding rods are fixedly arranged inside the frame. Both sides of the first weighing platform are slidably connected to the first sliding rods, which improves the stability of the first weighing platform during the lifting process.

[0015] Preferably, two second grooves are formed on the upper end surface of the first weighing platform. Four universal wheels are arranged at the bottom of the material cart. The universal wheels are slidably connected to the second grooves. The material cart can be pushed into the first weighing platform along the second grooves for weighing, or can be pushed out of the first weighing platform after lifting.

[0016] Preferably, the second groove includes a straight track and an arc track. The arc track is arranged at one end of the straight track away from the opening of the second groove, and the depth of the arc track is greater than the depth of the straight track. When the material cart is pushed into the first weighing platform along the second groove, after the first two universal wheels that slide first slide into the arc track, they will rotate according to the radian, and the depth of the arc track has resistance to the material cart, avoiding the material cart from sliding randomly in the second groove.

[0017] Preferably, buckle mechanisms are arranged on both opposite sides inside the material cart. The buckle mechanism includes a clamping block. Third grooves are formed on both opposite sides inside the material cart. The clamping block is slidably arranged in the third groove through a telescopic rod. The other end of the telescopic rod is fixedly connected to the inner wall of the third groove. A spring is sleeved on the side of the telescopic rod. Both ends of the spring are respectively fixedly connected to the third groove and the clamping block. The material hopper is fixed by the buckle mechanism to avoid the material hopper from shaking unstably during the lifting process.

[0018] Preferably, the cross-section of the clamping block is trapezoidal.

[0019] Preferably, there are four groups of the buckle mechanisms, which are evenly arranged on the opposite sides of the material cart.

[0020] Preferably, the first groove is frustum-shaped, and the diameter of the upper end surface of the first groove is larger than the bottom diameter, which is convenient for the first weighing platform to be engaged with the second weighing platform when the first weighing platform descends.

[0021] The utility model has the following beneficial effects:

[0022] 1. By setting the weighing mechanism, the utility model can directly weigh the material, without the need for manual weighing and then transporting it into the lifting equipment, simplifying the operation process. Moreover, the first weighing platform is separated from the second weighing platform during the lifting process, avoiding damage to the equipment caused by the pressure sensor being in the weighing state all the time during the lifting process, and improving the service life of the equipment.

[0023] 2. By setting the first gear, the second gear, the third sprocket, the fourth sprocket and the second chain, the utility model realizes the synchronous lifting of the lifting mechanisms at both ends of the first weighing platform driven by one driving motor, saving energy and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0025] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0026] Figure 2 is a three-dimensional structure diagram of another perspective of the present utility model;

[0027] Figure 3 is an internal three-dimensional structure diagram of the present utility model;

[0028] Figure 4 is a disassembled three-dimensional structure diagram of the first weighing platform and the second weighing platform of the present utility model;

[0029] Figure 5 is a disassembled three-dimensional structure diagram of the first weighing platform and the material cart of the present utility model;

[0030] Figure 6 is a bottom three-dimensional structure diagram of the material cart of the present utility model;

[0031] Figure 7 Schematic exploded three-dimensional structure diagram of the material cart and the material hopper of the present utility model;

[0032] Figure 8 Schematic diagram of the internal structure of the front of the material cart of the present utility model.

[0033] Wherein: 1. Frame; 11. First sliding rod;

[0034] 2. Weighing mechanism; 22. Material cart; 23. Material hopper; 24. First groove; 25. Pressure sensor; 26. First fixing block; 27. Second groove; 28. Universal pulley; 29. Third groove;

[0035] 211. First weighing platform; 212. Second weighing platform; 271. Linear track; 272. Arc track;

[0036] 3. Lifting mechanism; 31. First sprocket; 32. Second sprocket; 33. First chain; 34. First connecting rod;

[0037] 4. Driving mechanism; 41. First gear; 42. Second gear; 43. Driving motor; 44. Third sprocket; 45. Fourth sprocket; 46. Second chain;

[0038] 5. Controller;

[0039] 6. Buckle mechanism; 61. Block; 62. Telescopic rod; 63 Spring. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0042] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] As Figure 1-8 shown, a weighable elevator includes a frame 1. A weighing mechanism 2 is provided at the bottom of the frame 1. The weighing mechanism 2 includes a first weighing platform 211 and a second weighing platform 212. A material cart 22 is slidably provided on the first weighing platform 211. A material hopper 23 is movably provided in the material cart 22 for loading and unloading materials.

[0044] A first groove 24 is provided at the bottom of the first weighing platform 211. The second weighing platform 212 is engaged with the first groove 24. The second weighing platform 212 is fixedly provided at the bottom of the frame 1. A pressure sensor 25 is provided on the second weighing platform 212.

[0045] Lifting mechanisms 3 are provided on both sides of the first weighing platform 211. The lifting mechanism 3 includes a first sprocket 31, a second sprocket 32 and a first chain 33. The first sprocket 31 and the second sprocket 32 are respectively provided at the upper and lower ends of the first chain 33 and are meshed and connected to the inner side of the first chain 33. The first weighing platform 211 is fixedly connected to the side of the first chain 33 through a first fixing block 26. The first sprocket 31 and the second sprocket 32 are respectively rotatably connected to the upper and lower ends of the frame 1.

[0046] A driving mechanism 4 is provided at the top of the frame 1 to provide a power source for the lifting of the lifting mechanism 3.

[0047] A controller 5 is provided on the frame 1. The pressure sensor 25, the driving mechanism 4 and the controller 5 are electrically connected.

[0048] Place the hopper 23 in the material truck 22, and place the material truck 22 on the first weighing platform 211. After starting the pressure sensor 25 to zero through the controller 5, put the required weight of materials into the hopper 23. Drive the lifting mechanisms 3 on both sides of the first weighing platform 211 to rise through the driving mechanism 4. The first weighing platform 211 and the first chain 33 are fixedly connected through the first fixing block 26. Drive the first weighing platform 211 to be lifted to the corresponding height under the drive of the first chain 33, and push the material truck 22 out of the first weighing platform 211. Since the first weighing platform 211 is separated from the second weighing platform 212 during the lifting process, the pressure sensor 25 does not need to be in a working state all the time during the lifting process, which can improve the service life of the pressure sensor 25.

[0049] Preferably, four groups of the lifting mechanisms 3 are provided and evenly distributed on both sides of the first weighing platform 211;

[0050] A first connecting rod 34 is fixedly provided between the two first sprockets 31 on any one side of the first weighing platform 211. Connect the two first sprockets 31 on any one side of the first weighing platform 211 through the first connecting rod 34. Driving one group of the lifting mechanisms 3 can drive the other group of the lifting mechanisms 3 on the same side to lift and lower synchronously, and the setting of the four groups of the lifting mechanisms 3 can improve the stability of the first weighing platform 211 during the lifting and lowering process.

[0051] Preferably, the driving mechanism 4 includes a driving motor 43. The driving motor 43 is fixedly arranged outside the frame 1. A first gear 41 and a second gear 42 are arranged outside the frame 1. The first gear 41 and the second gear 42 are meshed and connected. The output end of the driving motor 43 is connected to the first gear 41. The first gear 41 is coaxially and fixedly connected to one of the first sprockets 31 through a connecting shaft;

[0052] A third sprocket 44, a fourth sprocket 45 and a second chain 46 are arranged on the frame 1. The third sprocket 44 and the fourth sprocket 45 are respectively arranged at both inner ends of the second chain 46 and meshed and connected with the second chain 46. The third sprocket 44 is coaxially connected to the second gear 42 through a connecting shaft. The fourth sprocket 45 is coaxially connected to one of the first sprockets 31 arranged on the side of the first weighing platform 211 away from the first gear 41 through a connecting shaft.

[0053] The driving motor 43 drives one of the first sprockets 31 to rotate. The first sprocket 31 drives the second sprocket 32 to rotate through the first chain 33. And the two sets of lifting mechanisms 3 on either side of the first weighing platform 211 are connected by the first connecting rod 34, enabling the synchronous movement of the lifting mechanisms 3 on the same side. At the same time, the first gear 41 is meshed with the second gear 42, and the second gear 42 drives the third sprocket 44, the fourth sprocket 45 and the second chain 46 to rotate. The fourth sprocket 45 drives the two sets of lifting mechanisms 3 on the other side of the first weighing platform 211 to rotate in the opposite direction, so as to realize the synchronous lifting of the lifting mechanisms 3 on both sides of the first weighing platform 211 driven by one driving motor 43, saving the power source.

[0054] Preferably, four first sliding rods 11 are fixedly arranged in the frame 1, and both sides of the first weighing platform 211 are slidably connected with the first sliding rods 11, improving the stability of the first weighing platform 211 during the lifting process.

[0055] Preferably, two second grooves 27 are formed on the upper end surface of the first weighing platform 211. Four universal wheels 28 are arranged at the bottom of the material cart 22, and the universal wheels 28 are slidably connected with the second grooves 27. The material cart can be pushed along the second grooves 27 into the first weighing platform 211 for weighing, or can be pushed out of the first weighing platform 211 after lifting.

[0056] Preferably, the second groove 27 includes a straight track 271 and an arc track 272. The arc track 272 is arranged at one end of the straight track 271 away from the opening of the second groove 27, and the depth of the arc track 272 is greater than that of the straight track 271. When the material cart 22 is pushed into the first weighing platform 211 along the second groove 27, the first two universal wheels 28 sliding in will rotate according to the radian after sliding into the arc track 272, and the depth of the arc track 272 has resistance to the material cart 22, preventing the material cart 22 from sliding randomly in the second groove 27.

[0057] Preferably, buckle mechanisms 6 are arranged on both opposite sides inside the material cart 22. The buckle mechanism 6 includes a clamping block 61. Third grooves 29 are formed on both opposite sides inside the material cart 22. The clamping block 61 is slidably arranged in the third grooves 29 through a telescopic rod 62. The other end of the telescopic rod 62 is fixedly connected with the inner wall of the third groove 29. A spring 63 is sleeved on the side of the telescopic rod 62, and both ends of the spring 63 are fixedly connected with the third groove 29 and the clamping block 61 respectively. The material hopper 23 is fixed by the buckle mechanism 6 to prevent the material hopper 23 from shaking unstably during the lifting process.

[0058] Preferably, the cross section of the clamping block 61 is trapezoidal.

[0059] Preferably, there are four sets of the buckle mechanisms 6, which are evenly arranged on two opposite sides inside the material cart 22.

[0060] Preferably, the first groove 24 is frustum-shaped, and the diameter of the upper end surface of the first groove 24 is larger than that of the bottom, which is convenient for the first weighing platform 211 to descend and the first groove 24 to engage with the second weighing platform 212.

[0061] The working principle of the present utility model: Place the material hopper 23 inside the material cart 22. The buckle mechanism 6 inside the material cart 22 fixes the material hopper 23 to prevent the material hopper 23 from shaking unstably during the lifting process. Push the material cart 23 along the second groove 27 to the first weighing platform 211. After the first two universal wheels 28 that slide first slide into the arc track 272, they will rotate according to the radian, and the depth of the arc track 272 has resistance to the material cart 22 to prevent the material cart 22 from sliding randomly inside the second groove 27. After clearing the pressure sensor 25 through the controller 5, put the required weight of materials into the material hopper 23, start the driving motor 43 to drive the first gear 41 to rotate, thereby driving the first sprocket 31 connected to the first gear 41 to rotate. The first sprocket 31 drives another first sprocket 31 connected through the first connecting rod 34 to rotate, realizing the synchronous lifting of the two sets of lifting mechanisms 3 on the same side. At the same time, the first gear 41 is meshed and connected with the second gear 42, and the second gear 42 drives the third sprocket 44, the fourth sprocket 45 and the second chain 46 to rotate. The fourth sprocket 45 drives the two sets of lifting mechanisms 3 on the other side of the first weighing platform 211 to rotate in the opposite direction, so as to realize the synchronous lifting of the lifting mechanisms 3 on both sides of the first weighing platform 211 driven by one driving motor 43, saving the power source, and the first weighing platform 311 is separated from the second weighing platform 212 during the lifting process to prevent the pressure sensor 25 from being in the weighing state all the time and causing damage to the equipment during the lifting process.

[0062] Certainly, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A weighable hoist, characterized in that: It comprises a frame, a weighing mechanism is provided at the bottom of the frame, the weighing mechanism comprises a first weighing platform and a second weighing platform, a material cart is slidably provided on the first weighing platform, and a material bucket for loading and taking materials is movably provided in the material cart; A first groove is provided at the bottom of the first weighing platform, the second weighing platform is engaged with the first groove, the second weighing platform is fixed at the bottom of the frame, and a pressure sensor is provided on the second weighing platform; Both sides of the first weighing platform are provided with a lifting mechanism, and the lifting mechanism includes a first sprocket, a second sprocket and a first chain, the first sprocket and the second sprocket are respectively arranged at the upper and lower ends of the first chain and meshed with the inner side of the first chain, the first weighing platform is fixedly connected to the side of the first chain through a first fixing block, and the first sprocket and the second sprocket are respectively rotatably connected to the upper and lower ends of the frame; A driving mechanism is provided on the top of the frame to provide a power source for the lifting and lowering of the lifting mechanism; The frame is provided with a controller, and the pressure sensor and the driving mechanism are electrically connected to the controller.

2. The weighable lifting machine according to claim 1, characterized in that: The lifting mechanism is provided with four groups and is evenly distributed on both sides of the first weighing platform; A first connecting rod is fixedly provided between two first sprocket wheels on either side of the first weighing platform.

3. The weighable lifting machine according to claim 2, characterized in that: The driving mechanism comprises a driving motor, the driving motor is fixedly arranged outside the frame, a first gear and a second gear are arranged outside the frame, the first gear and the second gear are meshed and connected, an output end of the driving motor is connected to the first gear, and the first gear is coaxially fixedly connected to one of the first sprockets through a connecting shaft; The frame is provided with a third sprocket, a fourth sprocket and a second chain, the third sprocket and the fourth sprocket are respectively arranged at the inner two ends of the second chain and meshed with the second chain, the third sprocket is coaxially connected to the second gear via a connecting shaft, and the fourth sprocket is coaxially connected to one of the first sprockets arranged on the side of the first weighing platform away from the first gear via a connecting shaft.

4. The weighable lifting machine according to claim 1, characterized in that: Four first sliding rods are fixedly arranged in the frame, and two sides of the first weighing platform are slidably connected to the first sliding rods.

5. The weighable lifting machine according to claim 1, characterized in that: The upper end surface of the first weighing platform is provided with two second grooves, and the bottom of the material vehicle is provided with four universal pulleys, and the universal pulleys are slidably connected with the second grooves.

6. The weighable lifting machine according to claim 5, characterized in that: The second groove includes a straight track and an arc track. The arc track is arranged at one end of the straight track away from the opening of the second groove, and the depth of the arc track is greater than the depth of the straight track.

7. The weighable lifting machine according to claim 1, characterized in that: A snap mechanism is provided on both opposite sides of the material cart, and the snap mechanism includes a snap block. A third groove is opened on both opposite sides of the material cart. The snap block is slidably arranged with the third groove through a telescopic rod, and the other end of the telescopic rod is fixedly connected to the inner wall of the third groove. A spring is provided on the side of the telescopic rod, and both ends of the spring are fixedly connected to the third groove and the snap block respectively.

8. The weighable lifting machine according to claim 7, characterized in that: The cross section of the block is trapezoidal; The buckle mechanisms are provided in four groups, which are evenly arranged on two opposite sides of the material vehicle.

9. The weighable lifting machine according to any one of claims 1 to 8, characterized in that: The first groove is in a truncated cone shape.

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