Lifting device

Abstract

The utility model discloses a lifting device which comprises a driving assembly, a counterweight assembly, a bearing assembly and a guiding assembly, the counterweight assembly and the bearing assembly are located on the guiding assembly and are in sliding connection with the guiding assembly, and the driving assembly is used for driving the counterweight assembly and the bearing assembly to slide in the opposite directions along the guiding assembly. The driving assembly comprises a power set and a transmission set, the power set is used for driving the transmission set, one end of the transmission set is fixedly connected with a counterweight assembly, and the other end is fixedly connected with a bearing assembly. Through the arrangement, the use precision of the structure can be greatly improved, and the service life of the lifting device can be greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the field of lifting structures, in particular to a lifting device. Background Art

[0002] There are many types of lifting devices based on belt drive on the market. The lifting devices have the function of driving objects to move up and down. The modules fixed on the transmission structure can be lifted and lowered by driving the transmission structure with a motor. However, the stability of the existing lifting devices will be greatly reduced as the lifting height increases. They may shake during the movement, and the accuracy and service life of the structure will be greatly reduced. Utility Model Content

[0003] The main purpose of the utility model is to provide a lifting device, aiming to improve the problem that the lifting device can still maintain stable lifting after the lifting height stroke is increased.

[0004] To achieve the above-mentioned purpose, the utility model proposes a lifting device, including: a driving assembly, a counterweight assembly, a receiving assembly and a guide assembly, the counterweight assembly and the receiving assembly are located in the guide assembly and are slidably connected to the guide assembly, and the driving assembly is used to drive the counterweight assembly and the receiving assembly to slide in opposite directions along the guide assembly.

[0005] In one embodiment, the driving assembly includes a power group and a transmission group, the power group is used to drive the transmission group, one end of the transmission group is fixedly connected to the counterweight assembly, and the other end of the transmission group is fixedly connected to the receiving assembly.

[0006] In one embodiment, the transmission group includes a first transmission member and a second transmission member, the counterweight assembly and the receiving assembly are arranged at both ends of the first transmission member and the second transmission member, and the first transmission member and the second transmission member are arranged on the periphery of the power group.

[0007] In one embodiment, the number of the transmission groups is two, and the two transmission groups are respectively arranged on both sides of the guide assembly. A transmission shaft is provided between the two transmission groups, and the transmission shaft is rotatably connected to the two transmission groups.

[0008] In one embodiment, the guide assembly includes a supporting body, a first guide rail slidably connected to the counterweight assembly, a second guide rail slidably connected to the receiving assembly, and two third guide rails. The first guide rail, the second guide rail and the two third guide rails are arranged on the four sides of the supporting body, and the two third guide rails are arranged on both sides of the supporting body.

[0009] In one embodiment, the counterweight assembly includes a mounting portion and a counterweight block, wherein the counterweight block is mounted on the mounting portion, and the mounting portion is fixedly connected to the first transmission member and the second transmission member, and is slidably connected to the first guide rail.

[0010] In one embodiment, the mounting portion includes a mounting plate and a connecting plate, the mounting plate is fixedly connected to the connecting plate, the connecting plate is fixedly connected to the first transmission member and the second transmission member, the counterweight block is mounted on the mounting plate, and the mounting plate is slidably connected to the first guide rail.

[0011] In one embodiment, the supporting assembly includes a slide plate, a pulley connecting plate and a pulley, the pulley connecting plate is fixedly connected to the slide plate, the slide plate is slidably connected to the second guide rail, the pulley connecting plate is provided with the pulley on the side facing the supporting body, the pulley connecting plate is slidably connected to the third guide rail via the pulley, and the pulley connecting plate is fixedly connected to the first transmission member and the second transmission member.

[0012] In one embodiment, the first guide rail, the second guide rail and the third guide rail are concave guide rails or convex guide rails.

[0013] The technical solution of the utility model adopts the method of arranging the counterweight assembly and the receiving assembly on the guide assembly and slidably connecting them with the guide assembly, so that the counterweight assembly and the receiving assembly can be lifted and lowered more stably through the wire assembly when driven by the driving assembly, thereby greatly improving the use accuracy and service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the lifting device of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the middle drive assembly;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the middle guide assembly;

[0018] Figure 4 for Figure 1 The structure diagram at A is enlarged;

[0019] Figure 5 for Figure 1 Enlarged structural diagram at point B in the middle.

[0020] Description of Figure Numbers:

[0021] Label name Label name 100 Lifting device 110 Drive components 111 Transmission Group 1111 First transmission member 1112 Second transmission member 112 Power Group 1121 Drive motor 1122 Transmission wheel 113 transmission shaft 120 Guide components 121 Support body 1211 First rail 1212 Second rail 1213 The third rail 130 Counterweight assembly 131 Installation Department 131a Mounting Plate 131b Connecting plate 132 Counterweight 140 Undertaking components 140a skateboard 140b Pulley connecting plate 140c pulley

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] The utility model provides a lifting device.

[0027] In the embodiment of the present utility model, Figure 1-5As shown, the lifting device 100 includes: a driving component 110, a counterweight component 130, a receiving component 140 and a guide component 120. The counterweight component 130 and the receiving component 140 are located in the guide component 120 and are slidably connected to the guide component 120. The driving component 110 is used to drive the counterweight component 130 and the receiving component 140 to slide along the guide component 120. When the counterweight component 130 is in a descending state, the receiving component 140 is in an ascending state. In this embodiment, the driving component 110 is mainly used to drive the counterweight component 130 and the receiving component 140 to move up and down, and the counterweight component 130 is mainly used to achieve balanced gravity and traction when the driving component 110 is in operation. The receiving component 140 can be externally connected to a load-bearing plate to carry the conveyed object. Since the counterweight component 130 and the receiving component 140 are both connected to the guide component 120, the counterweight component 130 and the receiving component 140 can be simultaneously arranged on the same side of the guide component 120. When the counterweight component 130 and the receiving component 140 are arranged on the same side of the guide component 120, it is necessary to design an avoidance structure according to actual conditions so that the counterweight component 130 and the receiving component 140 can move up and down without interfering with each other. Specifically, for example, the counterweight component 130 and the receiving component 140 are arranged on the left and right sides of the same side of the guide component 120, so that the counterweight component 130 and the receiving component 140 can move up and down without interfering with each other. The counterweight assembly 130 and the receiving assembly 140 do not contact each other on the same side of the guide assembly 120. Of course, the counterweight assembly 130 and the receiving assembly 140 can also be arranged on different sides of the guide assembly 120. In this case, no additional avoidance structure is required. The counterweight assembly 130 and the receiving assembly 140 can also be smoothly lifted and lowered with the guide assembly 120 as the conductor for moving up and down. When the driving assembly 110 drives the counterweight assembly 130 and the receiving assembly 140 to rise or fall, the counterweight assembly 130 and the receiving assembly 140 will rise or fall along the guide assembly 120. Through such an arrangement, the lifting device 100 can be lifted or lowered with the guide assembly 120 as the conductor when it rises or falls, so that when the lifting height stroke of the lifting device 100 increases, it can still remain stable and will not shake, thereby greatly improving the use accuracy and service life of the structure.

[0028] Specifically, Figure 1 and 2As shown, the driving assembly 110 includes a power group 112, and the power group 112 includes a driving motor 1121 and a transmission wheel 1122. The driving motor 1121 is used to drive the transmission wheel 1122 to rotate. A bevel transmission gear is provided at the output end of the driving motor 1121, and the driving motor 1121 is meshed with the transmission wheel 1122 through the bevel transmission gear, so as to achieve the purpose of driving the transmission wheel 1122 to rotate. Of course, the driving motor 1121 can also be arranged in a coaxial manner with the transmission wheel 1122. At this time, the driving motor 1121 can be directly fixedly connected or meshed with the transmission wheel 1122.

[0029] More specifically, Figure 1 and 2 As shown, the driving assembly 110 also includes a transmission group 111, and the transmission group 111 includes a first transmission member 1111 and a second transmission member 1112. The counterweight assembly 130 and the receiving assembly 140 are arranged at both ends of the first transmission member 1111 and the second transmission member 1112. The first transmission member 1111 and the second transmission member 1112 are arranged on the outer periphery of the transmission wheel 1122. The transmission group 111 includes a first transmission member 1111 and a second transmission member 1112 for transmission. The first transmission member 1111 and the second transmission member 1112 can be a chain or a transmission belt, and the counterweight assembly 130 and the receiving assembly 140 are respectively arranged at both ends of the first transmission member 1111 and the second transmission member 1112. Figure 2 As shown, the two ends of the first transmission member 1111 and the second transmission member 1112 are fixedly connected with the counterweight assembly 130 and the receiving assembly 140 respectively. Since the first transmission member 1111 and the second transmission member 1112 are fixedly connected with the counterweight assembly 130 and the receiving assembly 140, a ring-type transmission component is formed, and the inner end surfaces of the first transmission member 1111 and the second transmission member 1112 are transmission-connected with the transmission wheel 1122. When the transmission wheel 1122 drives the first transmission member 1111 and the second transmission member 1112 to rotate, the counterweight assembly 130 and the receiving assembly 140 will move in opposite directions at the same time. Because the counterweight assembly 130 and the receiving assembly 140 are slidingly connected with the guide assembly 120, the counterweight assembly 130 and the receiving assembly 140 will move in opposite directions along the guide assembly 120 at the same time. Through such an arrangement, the coordination effect of the counterweight assembly 130 and the receiving assembly 140 when moving up and down is better, thereby further improving the stability of the lifting device 100 when lifting.

[0030] In one embodiment, if Figure 2As shown, there are two transmission groups 111, and the two transmission groups 111 are respectively arranged on both sides of the guide assembly 120. When there are two transmission groups 111, the driving assembly 110 drives one of the transmission groups 111, and the other transmission group 111 cooperates with the transmission group 111 linked with the driving assembly 110 to drive the counterweight assembly 130 and the receiving assembly 140 to move. Such an arrangement can improve the stability of the lifting device 100 during lifting.

[0031] Specifically, the driving assembly 110 further includes a transmission shaft 113, which is disposed between the two transmission groups 111 and is in transmission connection with the two transmission groups 111. In order to enable the two transmission groups 111 to synchronously and cooperatively drive the first transmission member 1111 and the second transmission member 1112 to rotate, a transmission shaft 113 is disposed between the two transmission groups 111, and the transmission shaft 113 is in transmission connection with the two transmission groups 111. Therefore, when the driving assembly 110 drives one of the transmission groups 111 to rotate, the transmission shaft 113 can simultaneously drive the other transmission group 111 to rotate synchronously, so that the two transmission groups 111 can simultaneously drive the counterweight assembly 130 and the receiving assembly 140 to move up and down in a coordinated manner.

[0032] In one embodiment, if Figure 3 and 5 As shown, the guide assembly 120 includes a supporting body 121, a first guide rail 1211 slidably connected to the counterweight assembly 130, a second guide rail 1212 slidably connected to the receiving assembly 140, and two third guide rails 1213. The first guide rail 1211, the second guide rail 1212 and the two third guide rails 1213 are arranged on the four sides of the supporting body 121, and the two third guide rails 1213 are arranged on both sides of the supporting body 121. The guide assembly 120 includes a support body 121, and the support body 121 is provided with a first guide rail 1211, a second guide rail 1212 and two third guide rails 1213. When the cross-section of the support body 121 is square, the two third guide rails 1213 are arranged on both sides of the support body 121, and the first guide rail 1211 and the second guide rail 1212 are arranged on the other same surface or two surfaces of the support body 121. In this embodiment, the first guide rail 1211 and the second guide rail 1212 are arranged on the other two surfaces of the support body 121, and the counterweight assembly 130 is slidably connected to the first guide rail 1211, and the receiving assembly 140 is slidably connected to the second guide rail 1212 and the two third guide rails 1213 respectively. Of course, the cross-section of the support body 121 can also be other polygons.

[0033] Specifically, Figure 4As shown, the counterweight assembly 130 includes a mounting portion 131 and a counterweight block 132 . The counterweight block 132 is mounted on the mounting portion 131 . The mounting portion 131 is fixedly connected to the first transmission member 1111 and the second transmission member 1112 , and is slidably connected to the first guide rail 1211 . The mounting portion 131 includes a mounting plate 131a and a connecting plate 131b, which are fixedly connected to each other. The mounting plate 131a and the connecting plate 131b can be fixedly connected by a screw connection or by welding. The mounting plate 131a is arranged in front of the first guide rail 1211 and is slidably connected to the first guide rail 1211, and the two ends of the connecting plate 131b are fixedly connected to the first transmission member 1111 and the second transmission member 1112 respectively. When the first transmission member 1111 and the second transmission member 1112 drive the connecting plate 131b to move up and down, the connecting plate 131b can drive the mounting plate 131a to move up and down at the same time. The counterweight assembly 130 also includes a counterweight block 132, which is installed on the mounting plate 131a. The setting of the counterweight block 132 can be set according to actual conditions. The counterweight block 132 can be a whole or a combination of multiple blocks.

[0034] Specifically, Figure 5 As shown, the receiving assembly 140 includes a slide plate 140a, a pulley connecting plate 140b and a pulley 140c. The pulley connecting plate 140b is fixedly connected to the slide plate 140a. The slide plate 140a is slidably connected to the second guide rail 1212. A pulley 140c is provided on the side of the pulley connecting plate 140b facing the supporting body 121. The pulley connecting plate 140b is slidably connected to the third guide rail 1213 via the pulley 140c. The pulley connecting plate 140b is fixedly connected to the first transmission member 1111 and the second transmission member 1112. The receiving component 140 includes a slide plate 140a, and the slide plate 140a is slidably connected to the second guide rail 1212, and pulley connecting plates 140b are fixedly connected on both sides of the slide plate 140a. In order to further improve the coupling strength between the receiving component 140 and the guide component 120, a pulley 140c is arranged on the side of the pulley connecting plate 140b relative to the guide component 120, and the pulley 140c is slidably connected to the third guide rail 1213, and the two ends of the pulley connecting plate 140b are fixedly connected to the first transmission member 1111 and the second transmission member 1112 respectively. Through such an arrangement, the connection strength between the receiving component 140 and the guide component 120 is greatly improved, so that the receiving component 140 can more stably realize the lifting and lowering action with the guide component 120 as the moving conductor.

[0035] In one embodiment, the first guide rail 1211, the second guide rail 1212 and the third guide rail 1213 are concave guide rails (not shown in the figure), the first guide rail 1211, the second guide rail 1212 and the third guide rail 1213 are concave guide rails opened in the support body 121, and the counterweight assembly 130 and the receiving assembly 140 are respectively provided with guide protrusions embedded in the first guide rail 1211, the second guide rail 1212 and the third guide rail 1213.

[0036] In another embodiment, if Figure 3 As shown, the first guide rail 1211 and the second guide rail 1212 are concave guide rails, and the third guide rail 1213 is a convex guide rail. In order to take into account the support strength of the support body 121 itself, only the first guide rail 1211 and the second guide rail 1212 are set as concave guide rails, and the end surfaces of the mounting plate 131a and the slide plate 140a relative to the first guide rail 1211 and the second guide rail 1212 are respectively protruded with guide protrusions, and the third guide rail 1213 is a convex guide rail fixedly connected by a screw connection later. Of course, the third guide rail 1213 can also be integrally formed when the support body 121 is manufactured.

[0037] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lifting device, characterized in that: include: A driving assembly, a counterweight assembly, a receiving assembly and a guide assembly, wherein the counterweight assembly and the receiving assembly are located in the guide assembly and are slidably connected to the guide assembly, and the driving assembly is used to drive the counterweight assembly and the receiving assembly to slide in opposite directions along the guide assembly.

2. The lifting device according to claim 1, characterized in that: The driving assembly includes a power group and a transmission group. The power group is used to drive the transmission group. One end of the transmission group is fixedly connected to the counterweight assembly, and the other end of the transmission group is fixedly connected to the receiving assembly.

3. The lifting device according to claim 2, characterized in that: The transmission group includes a first transmission member and a second transmission member. The counterweight assembly and the receiving assembly are arranged at both ends of the first transmission member and the second transmission member. The first transmission member and the second transmission member are arranged on the periphery of the power group.

4. The lifting device according to claim 3, characterized in that: There are two transmission groups, which are respectively arranged on both sides of the guide assembly. A transmission shaft is arranged between the two transmission groups, and the transmission shaft is rotationally connected to the two transmission groups.

5. The lifting device according to claim 4, characterized in that: The guide assembly includes a supporting body, a first guide rail slidably connected to the counterweight assembly, a second guide rail slidably connected to the receiving assembly, and two third guide rails. The first guide rail, the second guide rail and the two third guide rails are arranged on the four sides of the supporting body, and the two third guide rails are arranged on both sides of the supporting body.

6. The lifting device according to claim 5, characterized in that: The counterweight assembly includes a mounting portion and a counterweight block, wherein the counterweight block is mounted on the mounting portion, and the mounting portion is fixedly connected to the first transmission member and the second transmission member, and is slidably connected to the first guide rail.

7. The lifting device according to claim 6, characterized in that: The mounting portion includes a mounting plate and a connecting plate, the mounting plate is fixedly connected to the connecting plate, the connecting plate is fixedly connected to the first transmission member and the second transmission member, the counterweight block is mounted on the mounting plate, and the mounting plate is slidably connected to the first guide rail.

8. The lifting device according to claim 5, characterized in that: The receiving assembly includes a slide plate, a pulley connecting plate and a pulley, wherein the pulley connecting plate is fixedly connected to the slide plate, the slide plate is slidably connected to the second guide rail, the pulley is provided on the side of the pulley connecting plate facing the supporting body, the pulley connecting plate is slidably connected to the third guide rail via the pulley, and the pulley connecting plate is fixedly connected to the first transmission member and the second transmission member.

9. The lifting device according to any one of claims 5 to 8, characterized in that: The first guide rail, the second guide rail and the third guide rail are concave guide rails or convex guide rails.

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