Electric hoist rail-mounted hoisting device

Abstract

The application discloses an electric hoist rail-entry hoisting device, which comprises a rotating roller mechanism, a sliding mechanism, two connecting mechanisms, a supporting mechanism, a limiting mechanism and a driving mechanism. The sliding mechanism is slidably arranged on the rotating roller mechanism. The two connecting mechanisms are arranged on the two sides of the rotating roller mechanism respectively. The supporting mechanism is detachably connected with the two connecting mechanisms. The rotating roller mechanism and the supporting mechanism are arranged on the top and the bottom of a rail steel beam respectively. The limiting mechanism is arranged on the supporting mechanism and penetrates through the connecting mechanism. The driving mechanism is arranged on the limiting mechanism and is in transmission connection with the limiting mechanism. Thus, the device is fixed on the steel beam, the rotating roller body is used to reduce the friction loss of the hoisting rope, the driving mechanism and the limiting mechanism are used to tension the hoisting rope, the hoisting rope is kept as vertical as possible during hoisting, the electric hoist deviation and shaking are effectively reduced, and the hoisting safety and the rail-entry precision are improved.

Description

Technical Field

[0001] This application relates to the technical field of electric hoist installation, and more particularly to an electric hoist rail-mounting device. Background Technology

[0002] Electric hoists are commonly used equipment in lifting operations. During installation, they need to be hoisted into the rail. Currently, the hoisting of electric hoists into the rail mostly adopts the direct hoisting method, in which the lifting rope is wrapped around the steel beam rail, one end is connected to the electric hoist, and the other end is connected to the winch. The electric hoist is lifted and placed into the rail by relying on the winch to wind up the rope.

[0003] However, the lifting rope slides directly in contact with the steel beam track, resulting in high frictional resistance, which can easily cause wear on the lifting rope and scratches on the track. At the same time, the winch is under a large load, which affects the lifting efficiency and the service life of the equipment. Furthermore, during lifting, it is difficult for the electric hoist to be precisely positioned directly under the lifting rope, which can easily cause the electric hoist to sway or shift during the lifting process, posing a safety hazard. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to provide an electric hoist rail-mounting device, which reduces the frictional loss of the hoisting rope by fixing the device to a steel beam, using the rotating roller body to reduce the frictional loss of the hoisting rope, and using the drive mechanism and the limiting mechanism to tension the hoisting rope so that the hoisting rope is kept as vertical as possible during hoisting, thereby effectively reducing the deviation and sway of the electric hoist and improving the hoisting safety and rail-mounting accuracy.

[0006] To achieve the above objectives, the first aspect of this application proposes an electric hoist rail-mounting device, comprising a rotating roller mechanism, a sliding mechanism, two connecting mechanisms, a support mechanism, a limiting mechanism, and a driving mechanism. The sliding mechanism is slidably mounted on the rotating roller mechanism. The two connecting mechanisms are respectively mounted on both sides of the rotating roller mechanism. The support mechanism is detachably connected to the two connecting mechanisms. The rotating roller mechanism and the support mechanism are respectively mounted on the top and bottom of the rail steel beam. The limiting mechanism is mounted on the support mechanism and passes through the connecting mechanisms. The driving mechanism is mounted on the limiting mechanism and is drively connected to the limiting mechanism.

[0007] In addition, the electric hoist rail-mounting device proposed in this application may also have the following additional technical features: In one embodiment of this application, the roller mechanism includes a mounting plate, a fixing frame, and a plurality of roller bodies, wherein the fixing frame is fixedly mounted on the mounting plate, and the plurality of roller bodies are rotatably mounted side by side on the fixing frame.

[0008] In one embodiment of this application, the sliding mechanism includes a sleeve corresponding to one of the plurality of roller bodies, a first screw, a movable plate, and an annular slide rail corresponding to one of the plurality of sleeves. The roller body is cross-shaped, and the sleeve has a cross-shaped through groove adapted to the roller body inside, and a plurality of balls are rolled in the cross-shaped through groove. The first screw is threadedly connected to the fixed frame, and the movable plate is fixedly connected to one end of the first screw. The annular slide rail is fixedly disposed on the side of the movable plate near the sleeve, and the annular slide rail is sleeved on the roller body, and the slider of the annular slide rail is fixedly connected to the sleeve.

[0009] In one embodiment of this application, the connecting mechanism includes a connecting strap and a connector, the two ends of the connecting strap are fixedly connected to the mounting plate and the connector respectively, and a rectangular slot is provided through the connector.

[0010] In one embodiment of this application, the support mechanism includes a support plate, a plurality of positioning rods, a contact plate, a plurality of sliding rods, and a second screw. The plurality of positioning rods are respectively fixedly disposed at the bottom of the support plate, and a rectangular slot has positioning holes corresponding to the plurality of positioning rods. The contact plate is disposed above the support plate, and the plurality of sliding rods are respectively fixedly disposed at the bottom of the contact plate, with each sliding rod penetrating the support plate and slidably connected to it. The second screw penetrates the support plate and is threadedly connected to it, with one end of the second screw rotatably connected to the bottom of the contact plate.

[0011] In one embodiment of this application, the limiting mechanism includes a bracket, a pivot rod, and a limiting roller, wherein the bracket is fixedly mounted on the support plate, one end of the pivot rod is pivotally connected to the bracket, and the limiting roller is rotatably mounted on the other end of the pivot rod.

[0012] In one embodiment of this application, the driving mechanism includes a hydraulic push rod and a linear slide rail, wherein the hydraulic push rod is fixedly mounted on the bracket, the linear slide rail is fixedly connected to the pivot rod, and the driving end of the hydraulic push rod is pivotally connected to the slider on the linear slide rail.

[0013] Compared with the prior art, this application has at least the following beneficial effects: 1. This application uses a roller mechanism to change the sliding friction between the hoisting rope and the steel beam into rolling friction, which effectively reduces frictional resistance, reduces hoisting rope wear and steel beam track scratches, and at the same time reduces the load on the winch and extends the service life of the equipment.

[0014] 2. This application uses a drive mechanism and a limit mechanism to tension the lifting rope, so that the lifting rope is kept as vertical as possible during lifting, effectively reducing the swaying amplitude caused by slack lifting rope and electric hoist misalignment, and reducing the risk of lifting accidents.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of an electric hoist rail-mounting device according to an embodiment of this application; Figure 2 This is a right view of a drive mechanism according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the movable plate and the annular slide rail according to an embodiment of this application; Figure 4 This is a schematic diagram of the sleeve structure according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a connector according to an embodiment of this application.

[0017] As shown in the figure: 1. Roller mechanism; 101. Mounting plate; 102. Fixing frame; 103. Roller body; 2. Sliding mechanism; 201. Sleeve; 202. First screw; 203. Movable plate; 204. Annular slide rail; 3. Connecting mechanism; 301. Connecting belt; 302. Connecting piece; 4. Support mechanism; 401. Support plate; 402. Positioning rod; 403. Abutment plate; 404. Sliding rod; 405. Second screw; 5. Limiting mechanism; 501. Bracket; 502. Pivoting rod; 503. Limiting roller; 6. Drive mechanism; 601. Hydraulic push rod; 602. Linear slide rail; 7. Rectangular slot; 8. Positioning hole. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0019] The electric hoist rail-mounting device according to an embodiment of this application will now be described with reference to the accompanying drawings.

[0020] like Figures 1-5As shown, the electric hoist rail hoisting device of this application embodiment includes a rotating roller mechanism 1, a sliding mechanism 2, two connecting mechanisms 3, a support mechanism 4, a limiting mechanism 5, and a driving mechanism 6.

[0021] The sliding mechanism 2 is slidably mounted on the roller mechanism 1, the two connecting mechanisms 3 are respectively mounted on both sides of the roller mechanism 1, and the support mechanism 4 is detachably connected to the two connecting mechanisms 3.

[0022] The roller mechanism 1 and the support mechanism 4 are respectively set at the top and bottom of the track steel beam, and the limiting mechanism 5 is set on the support mechanism 4, and the limiting mechanism 5 passes through the connecting mechanism 3.

[0023] The drive mechanism 6 is mounted on the limit mechanism 5, and the drive mechanism 6 is connected to the limit mechanism 5 in a transmission manner.

[0024] Specifically, before hoisting the electric hoist, relevant personnel first use external equipment (such as a ladder) to fix the device to the rail steel beam. That is, first place the roller mechanism 1 on the top of the rail steel beam and place the two connecting mechanisms 3 on both sides of the rail steel beam. Then fix the support mechanism 4 to the two connecting mechanisms 3, so that the roller mechanism 1, the two connecting mechanisms 3 and the support mechanism 4 are arranged around the rail steel beam. Finally, the support mechanism 4 is used to fix the device to the rail steel beam.

[0025] When hoisting an electric hoist, personnel fix one end of the hoisting rope to the external winch and pass the other end around the sliding mechanism 2 and the limiting mechanism 5 on the roller mechanism 1 before fixing it to the electric hoist. At this time, the roller mechanism 1 and the sliding mechanism 2 can effectively reduce the friction between the hoisting rope and the rail steel beam, improve the service life of the hoisting rope, and prevent the rail steel beam from being scratched. Before starting the winch, the driving mechanism 6 drives the limiting mechanism 5 to contact the hoisting rope and tension the hoisting rope, so that the hoisting rope is as vertical as possible, thereby reducing the swaying amplitude after the electric hoist is lifted. After the electric hoist is lifted, personnel drive the limiting mechanism 5 to slowly reset through the driving mechanism 6, thereby gradually positioning the electric hoist directly under the rail steel beam. When the electric hoist is lifted close to the support mechanism 4, personnel adjust the lateral position of the hoisting rope and the electric hoist through the sliding mechanism 2 to prevent the support mechanism 4 from obstructing the lifting of the electric hoist. Finally, personnel install the electric hoist into the rail.

[0026] In one embodiment of this application, such as Figure 1 and Figure 4 As shown, the roller mechanism 1 includes a mounting plate 101, a fixing frame 102, and multiple roller bodies 103.

[0027] The fixed frame 102 is fixedly mounted on the mounting plate 101, and multiple rotating roller bodies 103 are arranged side by side and rotate on the fixed frame 102.

[0028] In one embodiment of this application, the sliding mechanism 2 includes a sleeve 201 corresponding to a plurality of roller bodies 103, a first screw 202, a movable plate 203, and an annular slide rail 204 corresponding to a plurality of sleeves 201.

[0029] The roller body 103 is cross-shaped, and the sleeve 201 has a cross-shaped through groove that matches the roller body 103. Multiple balls (not shown in the figure) are rolled in the cross-shaped through groove. The first screw 202 is threadedly connected to the fixed frame 102. The movable plate 203 is fixedly connected to one end of the first screw 202. The annular slide rail 204 is fixedly installed on the side of the movable plate 203 near the sleeve 201. The annular slide rail 204 is sleeved on the roller body 103, and the slider of the annular slide rail 204 is fixedly connected to the sleeve 201.

[0030] Specifically, when the electric hoist is lifted close to the support mechanism 4 and there is a risk of interference, the operator rotates the first screw 202. The first screw 202 drives the movable plate 203 to move axially along the roller body 103. The movable plate 203 drives the sleeve 201 to slide synchronously through the annular slide rail 204. The sleeve 201 drives the hoisting rope and the electric hoist to move laterally, avoiding the blocking area of ​​the support mechanism 4, and ensuring that the electric hoist is lifted smoothly. While the annular slide rail 204 moves axially with the sleeve 201, it does not restrict the rotation of the roller body 103. The rolling friction reduction and lateral adjustment functions are realized simultaneously. The balls in the sleeve 201 further reduce the sliding resistance.

[0031] In one embodiment of this application, such as Figure 1 As shown, the connecting mechanism 3 includes a connecting strip 301 and a connector 302. The two ends of the connecting strip 301 are fixedly connected to the mounting plate 101 and the connector 302, respectively. A rectangular slot 7 is provided through the connector 302.

[0032] In one embodiment of this application, the support mechanism 4 includes a support plate 401, a plurality of positioning rods 402, an abutment plate 403, a plurality of sliding rods 404, and a second screw 405.

[0033] Among them, multiple positioning rods 402 are fixedly installed at the bottom of the support plate 401, and a positioning hole 8 corresponding to the multiple positioning rods 402 is opened in the rectangular slot 7. The abutment plate 403 is installed above the support plate 401, and multiple sliding rods 404 are fixedly installed at the bottom of the abutment plate 403. The multiple sliding rods 404 pass through the support plate 401 and are slidably connected to the support plate 401. The second screw 405 passes through the support plate 401 and is threadedly connected to the support plate 401, and one end of the second screw 405 is rotatably connected to the bottom of the abutment plate 403.

[0034] It should be noted that the second screw 405 described in this embodiment and the first screw 202 described in the above embodiment are both fixedly connected with a throttle, and the lengths of the support plate 401 and the connector 302 are both less than the lengths of the mounting plate 101 and the roller body 103.

[0035] Specifically, there are two sets of connecting mechanisms 3, symmetrically arranged on the left and right sides of the roller mechanism 1, used to connect the support mechanism 4 with the roller mechanism 1 to form an installation structure that hugs the steel beam. One end of the connecting strip 301 is fixed to the mounting plate 101 of the roller mechanism 1, and the other end is fixed to the connecting piece 302. The length is adapted to the height of the track steel beam, so that the connecting piece 302 hangs naturally below both sides of the steel beam. The connecting piece 302 is a block or plate structure with a rectangular slot 7 through it for the support plate 401 to be inserted and positioned.

[0036] When fixing this device to the rail steel beam, first place the mounting plate 101 of the roller mechanism 1 stably on the top surface of the upper flange of the rail steel beam, with the connecting strips 301 hanging down naturally on both sides, and the connecting parts 302 abutting against the lower left and right sides of the steel beam. Insert the support plate 401 into the rectangular slot 7 of the connecting part 302 respectively, and then the positioning rod 402 is inserted into the positioning hole 8 under the action of gravity, completing the connection and fixing of the support mechanism 4 and the two connecting mechanisms 3. Then rotate the second screw 405, and the screw feeds upward, pushing the abutment plate 403 to rise until the abutment plate 403 presses against the lower flange of the steel beam, so that the entire device is fixed on the steel beam.

[0037] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, the limiting mechanism 5 includes a bracket 501, a pivot rod 502, and a limiting roller 503.

[0038] The bracket 501 is fixedly mounted on the support plate 401, one end of the pivot rod 502 is pivotally connected to the bracket 501, and the limiting roller 503 is rotatably mounted on the other end of the pivot rod 502.

[0039] In one embodiment of this application, the drive mechanism 6 includes a hydraulic push rod 601 and a linear slide rail 602.

[0040] The hydraulic push rod 601 is fixedly mounted on the bracket 501, the linear slide rail 602 is fixedly connected to the pivot rod 502, and the driving end of the hydraulic push rod 601 is pivotally connected to the slider on the linear slide rail 602.

[0041] It should be noted that the limiting roller 503 described in this embodiment and the rotating roller body 103 described in the above embodiment are both fitted with two limiting components (not specifically marked in the figure). The suspension rope is positioned between the two limiting components to limit the suspension rope and prevent the suspension rope from sliding laterally.

[0042] Specifically, after the hoisting rope passes around the rotating roller mechanism 1, it passes through the side of the limiting roller 503 and connects to the electric hoist. The hydraulic push rod 601 is activated to extend and push the slider of the linear slide rail 602. The slider slides along the linear slide rail 602 and at the same time pushes the pivot rod 502 to swing outward around the bracket 501. The pivot rod 502 drives the limiting roller 503 to press against the hoisting rope, gradually tightening the slack hoisting rope and keeping it as vertical as possible. Then, while maintaining the pressure of the hydraulic push rod 601, the winch is started to lift the electric hoist. The hoisting rope rolls along the surface of the limiting roller 503. After the electric hoist is lifted, the hydraulic push rod 601 is slowly retracted, allowing the electric hoist to gradually move to directly below the track steel beam with a slight offset. At this time, the limiting roller 503 is no longer in contact with the hoisting rope, which facilitates the installation of the electric hoist into the track.

[0043] Specifically, in actual operation, the operator reaches the working position of the track steel beam through external equipment such as ladders, places the mounting plate 101 of the roller mechanism 1 stably on the top of the track steel beam, and allows the connecting mechanisms 3 on both sides to hang naturally on both sides of the track steel beam. The support plate 401 of the support mechanism 4 is inserted into the rectangular slot 7 of the connector 302, so that the positioning rod 402 is inserted into the positioning hole 8, completing the detachable connection between the support mechanism 4 and the connecting mechanism 3. Then, the second screw 405 is rotated to drive the contact plate 403 to move upward and press against the lower flange of the track steel beam, so that the roller mechanism 1, the connecting mechanism 3 and the support mechanism 4 form a ring-shaped structure, and the entire device is firmly fixed on the track steel beam.

[0044] Then, one end of the hoisting rope is fixed to the external winch, and the other end passes through the sleeve 201 of the sliding mechanism 2 and the limiting roller 503 of the limiting mechanism 5 in sequence. The lower end is reliably connected to the electric hoist. The hydraulic push rod 601 of the start-up drive mechanism 6 extends and pushes the linear slide rail 602 and the pivot rod 502 to swing outward around the bracket 501, so that the limiting roller 503 presses the hoisting rope and tensions the hoisting rope to the vertical state as much as possible, reducing the risk of swaying and deviation when the electric hoist is hoisted.

[0045] Then, the external winch is started to wind up the hoisting rope. The hoisting rope drives the rotating roller body 103 and the limit roller 503 to rotate synchronously, converting the sliding friction between the hoisting rope and the rail steel beam into rolling friction, reducing frictional resistance and equipment wear. During the hoisting process, the hydraulic push rod 601 slowly retracts, causing the electric hoist to gradually move to directly below the rail steel beam with a slight offset, until the contact between the limit roller 503 and the hoisting rope is released.

[0046] When the electric hoist is raised close to the support mechanism 4 and there is a risk of interference, the winch is paused, the first screw 202 is rotated, and the movable plate 203 is driven to move axially along the cross-shaped roller body 103. The movable plate 203 drives the sleeve 201 and the hoisting rope to move laterally in sync through the annular slide rail 204, so that the electric hoist avoids the blocking area of ​​the support mechanism 4. After the adjustment is completed, the electric hoist is raised until it is hoisted to the designated height. Then, relevant personnel push the electric hoist into the track to complete the track installation. Finally, the device is removed from the track steel beam to complete the entire operation process.

[0047] In summary, the electric hoist rail-mounting device of this application, by fixing the device on the steel beam, reducing the friction loss of the hoisting rope with the rotating roller body, and using the drive mechanism and limit mechanism to tension the hoisting rope, keeps the hoisting rope as vertical as possible during lifting, thereby effectively reducing the deviation and sway of the electric hoist and improving the lifting safety and rail-mounting accuracy.

[0048] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An electric hoist rail-mounting device, characterized in that, It includes a roller mechanism, a sliding mechanism, two connecting mechanisms, a support mechanism, a limiting mechanism, and a drive mechanism, among which, The sliding mechanism is slidably mounted on the roller mechanism, the two connecting mechanisms are respectively mounted on both sides of the roller mechanism, and the support mechanism is detachably connected to the two connecting mechanisms. The roller mechanism and the support mechanism are respectively located at the top and bottom of the track steel beam; The limiting mechanism is disposed on the supporting mechanism and extends through the connecting mechanism; The driving mechanism is mounted on the limiting mechanism, and the driving mechanism is connected to the limiting mechanism in a transmission manner. The roller mechanism includes a mounting plate, a fixing frame, and multiple roller bodies, wherein, The fixing frame is fixedly mounted on the mounting plate, and the multiple rotating roller bodies are rotatably mounted side by side on the fixing frame; The sliding mechanism includes sleeves corresponding one-to-one with the plurality of roller bodies, a first screw, a movable plate, and an annular slide rails corresponding one-to-one with the plurality of sleeves, wherein... The roller body is cross-shaped, and the sleeve has a cross-shaped groove inside that is adapted to the roller body. Multiple balls are tumblingly connected in the cross-shaped groove. The first screw is threadedly connected to the fixed frame, and the movable plate is fixedly connected to one end of the first screw; The annular slide rail is fixedly installed on the side of the movable plate near the sleeve. The annular slide rail is sleeved on the rotating roller body, and the slider of the annular slide rail is fixedly connected to the sleeve. The connecting mechanism includes a connecting strap and a connector. The two ends of the connecting strap are fixedly connected to the mounting plate and the connector, respectively. A rectangular slot is provided through the connector. The support mechanism includes a support plate, multiple positioning rods, an abutment plate, multiple sliding rods, and a second screw, wherein... Multiple positioning rods are respectively fixedly disposed at the bottom of the support plate, and the rectangular slot is provided with positioning holes corresponding to the multiple positioning rods; The contact plate is disposed above the support plate, and a plurality of sliding rods are respectively fixedly disposed at the bottom of the contact plate, and the plurality of sliding rods respectively pass through the support plate and are slidably connected to the support plate; The second screw passes through the support plate and is threadedly connected to the support plate, and one end of the second screw is rotatably connected to the bottom of the abutment plate.

2. The electric hoist rail-mounting device according to claim 1, characterized in that, The limiting mechanism includes a bracket, a pivot rod, and a limiting roller, wherein, The bracket is fixedly mounted on the support plate, one end of the pivot rod is pivotally connected to the bracket, and the limiting roller is rotatably mounted on the other end of the pivot rod.

3. The electric hoist rail-mounting device according to claim 2, characterized in that, The drive mechanism includes a hydraulic push rod and a linear slide rail, wherein... The hydraulic push rod is fixedly mounted on the bracket, the linear slide rail is fixedly connected to the pivot rod, and the driving end of the hydraulic push rod is pivotally connected to the slider on the linear slide rail.

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