Heavy-load reciprocating elevator

Abstract

The utility model belongs to the technical field of hoisters, and particularly relates to a heavy-load reciprocating hoister which comprises a hoister frame, a hoisting motor and a controller are installed on the hoister frame, and the hoisting motor is in transmission connection with a hoisting chain transmission mechanism through an output chain transmission mechanism. Chain wheels in the output chain transmission mechanism and the lifting chain transmission mechanism are rotationally installed on the elevator frame, a lifting bracket and an adjustable balance weight mechanism are hung on the portions, on the two sides of the chain wheels, of a chain in the lifting chain transmission mechanism respectively, the two ends of the lifting bracket are slidably connected with first guide rods, and the adjustable balance weight mechanism is slidably connected with second guide rods. The first guide rod and the second guide rod are installed on the elevator frame. The counterweight can be rapidly adjusted through the adjustable counterweight mechanism, and it is ensured that the lifting motor can still efficiently and stably operate when lifting large-weight materials; and meanwhile, by additionally arranging the first guide rod and the second guide rod, the lifting stability of the materials and the balancing weight is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a heavy-load reciprocating elevator. Background Art

[0002] In today's industrial production and logistics sectors, material hoists, as key equipment, shoulder the heavy responsibility of transporting materials from low to high locations. With the expansion of production scale and the increase in material weight, traditional material hoists are gradually becoming limited in handling heavy materials. These limitations are primarily manifested in two aspects: first, insufficient motor driving force makes it difficult to effectively drive heavy materials for smooth lifting and lowering, resulting in low efficiency and even possible damage to the equipment due to overload; second, stability issues during the lifting process. Especially under high speeds and heavy loads, materials are prone to shaking or shifting, which not only affects operational safety but can also cause damage to the surrounding environment and equipment.

[0003] To overcome these challenges, a variety of improved material hoists have appeared on the market, many of which attempt to reduce the burden on the motor by adding a counterweight system to balance and lift the weight of the material. However, most existing counterweight systems suffer from complex structures and difficult adjustment. On the one hand, the complex counterweight structure increases manufacturing costs and maintenance difficulties; on the other hand, the cumbersome adjustment process makes it difficult for operators to quickly and accurately adjust the counterweight according to the weight of the material, resulting in limited lifting efficiency. In addition, while some counterweight systems can achieve a certain degree of adjustment, their stability and safety still need to be improved, and they cannot fully meet the requirements of modern industrial production for efficiency, safety, and stability. Utility Model Content

[0004] In response to the above problems, the purpose of this utility model is to provide a heavy-load reciprocating elevator to solve the problem that the counterweight system equipped for lifting heavy materials in traditional elevators is complex in structure, inconvenient to adjust, and difficult to quickly adjust the counterweight according to the actual load, affecting work efficiency and safety.

[0005] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring or rubber cushion, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0006] The beneficial effects of the present invention are: rapid adjustment of the counterweight is achieved through the adjustable counterweight mechanism, ensuring that the lifting motor can still operate efficiently and stably when lifting heavy materials; at the same time, by adding guide rods 1 and 2, the stability of the lifting of materials and counterweight blocks is improved.

[0007] In order to ensure the stability of the movement of the counterweight;

[0008] As a further improvement of the above technical solution: the counterweight block and the lifting plate are both provided with through holes for sliding connection to the guide rod 2, and a plurality of the counterweight blocks are stacked in the axial direction of the guide rod 2.

[0009] The beneficial effect of this improvement is that under the limiting guidance of the guide rod 2, the lifting plate can drive different numbers of counterweight blocks to move up and down stably.

[0010] In order to quickly and conveniently adjust the counterweight of the adjustable counterweight mechanism on the lifting chain drive mechanism;

[0011] As a further improvement of the above technical solution: the axis of the hanging rod is parallel to the axis of the second guide rod, and the spacing between the multiple horizontal through holes opened on the hanging rod is equal to the spacing between the horizontal through holes opened on two adjacent counterweight blocks.

[0012] The beneficial effect of this improvement is that by inserting the insertion rod into the through hole of the counterweight block at different positions and connecting it with the hanging rod, the accurate adjustment of the counterweight can be achieved quickly.

[0013] In order to ensure the stability of the lifting bracket;

[0014] As a further improvement of the above technical solution: the lifting bracket includes an upper bracket and a lower bracket connected by welding, and through holes for sliding connection to guide rod one are opened at both ends of the upper bracket, and the axis of guide rod one is parallel to the axis of guide rod two.

[0015] The beneficial effect of this improvement is that the lifting bracket can be stably raised and lowered by the lifting chain transmission mechanism under the support limit of the guide rod 1.

[0016] In order to ensure the stability of the chain connection between the adjustable counterweight mechanism, the lifting bracket and the lifting chain drive mechanism;

[0017] As a further improvement of the above technical solution: one end of the pin shaft of the chain in the lifting chain transmission mechanism is connected to the lifting bracket and the lifting plate.

[0018] The beneficial effect of this improvement is that as the chain of the lifting chain transmission mechanism rotates, the counterweight mechanism can be adjusted and the lifting bracket can be stably raised and lowered.

[0019] In order to ensure the safety of device operation;

[0020] As a further improvement of the above technical solution: a travel switch 2 and a travel switch 1 are respectively installed on the hoist frame vertically above the lifting bracket and the adjustable counterweight mechanism, and the contacts of the travel switch 2 and the travel switch 1 are arranged toward the lifting bracket and the adjustable counterweight mechanism, and the travel switch 2 and the travel switch 1 are electrically connected to the controller.

[0021] The beneficial effect of this improvement is that when the lifting bracket and the adjustable counterweight mechanism touch the contacts of travel switch 2 and travel switch 1, the circuits of travel switch 2 and travel switch 1 are closed, and when the relay in the controller receives the electrical signal from travel switch 1 or travel switch 2, it promptly controls the lifting motor to stop, thereby ensuring the safe operation of the device.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a structural diagram of the lifting bracket in the present utility model;

[0025] Figure 3 This is a schematic structural diagram of the adjustable counterweight mechanism in the present utility model;

[0026] Figure 4 This is a schematic structural diagram of the counterweight block in the utility model;

[0027] In the figure: 1. Hoist frame; 2. Hoisting motor; 3. Output chain transmission mechanism; 4. Hoisting chain transmission mechanism; 5. Controller; 6. Hoisting bracket; 61. Upper bracket; 62. Lower bracket; 7. Travel switch 1; 8. Travel switch 2; 9. Guide rod 1; 10. Guide rod 2; 11. Adjustable counterweight mechanism; 111. Lifting plate; 112. Hooking rod; 113. Counterweight block; 114. Insert rod. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0029] Example 1:

[0030] like Figure 1—4 shows: a heavy-load reciprocating hoist, including a hoist frame 1, on which a hoisting motor 2 and a controller 5 are installed. The hoisting motor 2 is connected to a hoisting chain transmission mechanism 4 through an output chain transmission mechanism 3. The sprockets in the output chain transmission mechanism 3 and the hoisting chain transmission mechanism 4 are rotatably installed on the hoist frame 1. The chain in the hoisting chain transmission mechanism 4 is respectively hung with a hoisting bracket 6 and an adjustable counterweight mechanism 11 on both sides of the sprocket. The two ends of the hoisting bracket 6 are slidably connected to a guide rod 9. The adjustable counterweight mechanism The structure 11 is slidably connected to the guide rod 2 10, and the guide rod 1 9 and the guide rod 2 10 are installed on the hoist frame 1. The adjustable counterweight mechanism 11 includes a lifting plate 111, and the bottom surface of the lifting plate 111 is connected to a hanging rod 112. The hanging rod 112 is slidably inserted into a plurality of counterweight blocks 113. A plurality of through holes for fitting the insertion rods 114 are horizontally opened on the counterweight blocks 113 and the hanging rod 112. The counterweight is quickly adjusted by the adjustable counterweight mechanism 11 to ensure that the hoisting motor 2 can still operate efficiently and stably when lifting heavy materials;At the same time, by adding guide rod 1 9 and guide rod 2 10, the stability of the lifting of materials and counterweight blocks is improved. The counterweight blocks 113 and the lifting plate 111 are provided with through holes for sliding connection to the guide rod 2 10. A plurality of the counterweight blocks 113 are stacked in the axial direction of the guide rod 2 10. Under the limit guidance of the guide rod 2 10, the lifting plate 111 can drive different numbers of counterweight blocks 113 to move stably up and down. The axis of the hanging rod 112 is parallel to the axis of the guide rod 2 10. 2 is equal to the spacing of the horizontal through holes opened on the two adjacent counterweight blocks 113. By inserting the insertion rod 114 into the through holes of the counterweight blocks 113 at different positions and connecting them with the hanging rod 112, the accurate adjustment of the counterweight can be quickly achieved. The lifting bracket 6 includes an upper bracket 61 and a lower bracket 62 connected by welding. Both ends of the upper bracket 61 are provided with through holes for sliding connection to the guide rod 9. The axis of the guide rod 9 is parallel to the axis of the guide rod 2 10. The lifting bracket 6 can be stably raised and lowered under the support and limit of the guide rod 1 9 and driven by the lifting chain transmission mechanism 4. One end of the pin of the chain in the lifting chain transmission mechanism 4 connects the lifting bracket 6 and the lifting plate 111. As the chain of the lifting chain transmission mechanism 4 rotates, the adjustable counterweight mechanism 11 and the lifting bracket 6 can be stably raised and lowered. A travel switch 2 8 and a travel switch 1 7 are respectively installed on the hoist frame 1 vertically above the lifting bracket 6 and the adjustable counterweight mechanism 11. The contacts of the travel switches 2 8 and 1 7 are arranged toward the lifting bracket 6 and the adjustable counterweight mechanism 11. The travel switches 2 8 and 1 7 are electrically connected to the controller 5. When the lifting bracket 6 and the adjustable counterweight mechanism 11 contact the contacts of the travel switches 2 8 and 1 7, the circuits of the travel switches 2 8 and 1 7 are closed. Upon receiving the electrical signal from the travel switches 1 7 or 1 8, the relay in the controller 5 promptly controls the lifting motor 2 to stop, ensuring the safe operation of the device.

[0031] The working principle of this technical solution is as follows: the counterweight of the adjustable counterweight mechanism 11 is selected according to the weight of the material. When adjusting the counterweight of the adjustable counterweight mechanism 11, the insertion rod 114 is inserted into the horizontal through hole of the counterweight block 113 at the appropriate position, so that the total weight of the counterweight block 113 driven by the lifting plate 111 through the hanging rod 112 is close to the total weight of the material plus the lifting bracket 6; the lifting bracket 6 is lifted to the lowest height, and the material is placed on the lifting bracket 6. The lifting motor 2 is controlled by the controller 5 to start, and the lifting motor 2 drives the sprocket at the bottom end of the lifting chain transmission mechanism 4 to rotate through the output chain transmission mechanism 3. The sprocket in the lifting chain transmission mechanism 4 drives the chain to rotate, and then drives the lifting bracket 6 pinned on the chain of the lifting chain transmission mechanism 4 to move upward to lift the material; in the process of the adjustable counterweight mechanism 11 and the lifting bracket 6 moving up and down, the guide rod 2 10 and the guide rod 1 9 play an effective guiding and limiting role to ensure the stability of the material lifting process.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A heavy-load reciprocating hoist, characterized in that: The invention comprises a hoist frame (1), a hoisting motor (2) and a controller (5) are installed on the hoist frame (1), the hoisting motor (2) is connected to the hoisting chain transmission mechanism (4) through an output chain transmission mechanism (3), the sprockets in the output chain transmission mechanism (3) and the hoisting chain transmission mechanism (4) are rotatably installed on the hoist frame (1), the chain in the hoisting chain transmission mechanism (4) is respectively hung with a hoisting bracket (6) and an adjustable counterweight mechanism (11) on both sides of the sprocket, and the two ends of the hoisting bracket (6) are slidably connected. The invention relates to a lifting machine frame (1) comprising a lifting plate (111), a lifting plate (111) and a lifting plate (112) connected to the lifting plate (111). The lifting plate (111) is connected to a guide rod (9), the adjustable counterweight mechanism (111) is slidably connected to the guide rod (10), the guide rod (9) and the guide rod (10) are installed on the lifting machine frame (1), the adjustable counterweight mechanism (111) comprises a lifting plate (111), the bottom surface of the lifting plate (111) is connected to a hanging rod (112), the hanging rod (112) is slidably inserted into a plurality of counterweight blocks (113), and a plurality of through holes for fitting the insertion rods (114) are horizontally opened on the counterweight blocks (113) and the hanging rod (112).

2. A heavy-load reciprocating hoist according to claim 1, characterized in that: The counterweight block (113) and the lifting plate (111) are both provided with through holes for sliding connection with the second guide rod (10), and a plurality of the counterweight blocks (113) are stacked in the axial direction of the second guide rod (10).

3. A heavy-load reciprocating hoist according to claim 1, characterized in that: The axis of the hooking rod (112) is parallel to the axis of the second guide rod (10), and the spacing between the multiple horizontal through holes opened on the hooking rod (112) is equal to the spacing between the horizontal through holes opened on two upper and lower adjacent counterweight blocks (113).

4. A heavy-load reciprocating hoist according to claim 1, characterized in that: The lifting bracket (6) includes an upper bracket (61) and a lower bracket (62) connected by welding. Both ends of the upper bracket (61) are provided with through holes for slidingly connecting the guide rod 1 (9). The axis of the guide rod 1 (9) is parallel to the axis of the guide rod 2 (10).

5. A heavy-load reciprocating elevator according to claim 1, characterized in that: One end of the pin shaft of the chain in the lifting chain transmission mechanism (4) is connected to the lifting bracket (6) and the lifting plate (111).

6. A heavy-load reciprocating elevator according to claim 1, characterized in that: A second travel switch (8) and a first travel switch (7) are respectively installed on the hoist frame (1) vertically above the lifting bracket (6) and the adjustable counterweight mechanism (11), and the contacts of the second travel switch (8) and the first travel switch (7) are arranged toward the lifting bracket (6) and the adjustable counterweight mechanism (11), and the second travel switch (8) and the first travel switch (7) are electrically connected to the controller (5).

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