CN219384509U - Hoisting platform - Google Patents

Abstract

The utility model relates to the technical field of lifting equipment, in particular to a lifting platform which comprises a portal frame, a hoist crane and a first limiting component, wherein the portal frame comprises a track cross beam, two upright posts arranged at two ends of the length of the track cross beam and a base for supporting the upright posts, the hoist crane is arranged on the track cross beam in a sliding manner, the first limiting component is provided with two groups and is respectively arranged on the two upright posts, and the first limiting component can be connected with a lifted object and apply a pulling force to the lifted object so as to prevent the lifted object from shaking left and right and keep the stability of the lifted object.

Description

Hoisting platform

Technical Field

The utility model relates to the technical field of lifting equipment, in particular to a lifting platform.

Background

When the aircraft is in a ground take-off stage or an air approach landing stage, stronger crosswind can not only bring remarkable influence to the control quality of the aircraft, but also influence the working state of an engine, and the engine can surge or even stall when serious. Therefore, the engine needs to be tested and flown under the condition that an outdoor air apron is windy, the special ground test of the side air requires the use of the test configuration air inlet, and the test configuration air inlet can only be used for the ground test, so that the normal configuration air inlet is required to be replaced by the test configuration air inlet in the airport open air environment, and the test configuration air inlet is replaced by the normal configuration air inlet after the test is completed.

At present, an air inlet channel which needs to be replaced is mainly hoisted by an automobile crane during air inlet channel assembly, and the air inlet channel is strongly rocked in a windy environment, so that the requirement of the air craft on the butt joint precision is difficult to meet, and the air inlet channel is easy to damage.

Disclosure of Invention

The utility model aims to provide a lifting platform which can limit a lifted object and avoid shaking in the lifting process.

To achieve the purpose, the utility model adopts the following technical scheme:

the lifting platform comprises a portal frame and a hoist crane, wherein the portal frame comprises a track beam, two upright posts arranged at two ends of the length of the track beam and a base used for supporting the upright posts, the hoist crane is arranged on the track beam in a sliding manner, the lifting platform further comprises two groups of first limiting assemblies arranged on the two upright posts respectively, and the first limiting assemblies can be connected with a lifted object and apply tension to the lifted object.

Optionally, the first limiting component comprises a telescopic rod and a connector, one end of the telescopic rod is connected with the upright post, the other end of the telescopic rod is connected with the connector, and the connector is configured to detachably connect the lifted article.

Optionally, the telescopic rod is hinged with the upright post.

Optionally, the joint is hinged with the telescopic rod.

Optionally, the telescopic rod comprises a sleeve, an adjusting rod and a locking screw rod, wherein the adjusting rod is axially inserted into the sleeve, and the locking screw rod is radially inserted into the sleeve.

Optionally, the device further comprises a second limiting assembly, wherein the second limiting assembly comprises two pull ropes, and the two pull ropes respectively provide opposite pulling forces along the length direction of the beam for the hoist.

Optionally, the second limiting component further comprises a steering wheel and a fixing ring, the steering wheel and the fixing ring are both arranged on the upright post, and one end of the pull rope bypasses the steering wheel and is tied on the fixing ring.

Optionally, the track beam is detachably connected with the upright post, and the upright post is detachably connected with the base.

Optionally, a pulley is arranged at the bottom of the portal frame.

Optionally, the device further comprises a third limiting assembly, wherein the third limiting assembly comprises supporting feet with adjustable height, and the supporting feet are arranged on the portal frame.

The beneficial effects of the utility model are as follows: this hoisting platform utilizes the hoist that sets up on the portal frame to hang the article, and the hoist in-process is hung under the cooperation at the hoist, utilizes two sets of first spacing subassembly that set up on the portal frame crossbeam to carry out spacingly to the article, has guaranteed the stability of article hoist and mount in-process.

Drawings

Fig. 1 is a schematic perspective view of a lifting platform according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an enlarged schematic view at B in FIG. 1;

FIG. 4 is a front view of a lifting platform as set forth in an embodiment of the utility model;

fig. 5 is a top view of a lifting platform as proposed in an embodiment of the utility model.

In the figure, 1, a portal frame; 11. a rail cross beam; 12. a column; 13. a base; 14. a diagonal brace; 2. hoisting by a hoist; 3. a first limit assembly; 31. a telescopic rod; 31a, a sleeve; 31b, adjusting the rod; 31c, locking the screw; 32. a joint; 4. a pulley; 5. the second limiting component; 51. a pull rope; 52. a steering wheel; 53. a fixing ring; 6. a pulley; 7. the third limiting assembly; 71. supporting feet; 72. a fixed sleeve; 73. and adjusting the screw.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of operation, and are not intended to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The air inlet passage of the aircraft engine is light in weight, large in volume and wide in air receiving surface, and is easy to shake when being hoisted and assembled by utilizing the automobile crane, so that the requirement on assembly precision is difficult to meet. The portal frame is a lifting device which is developed according to the requirements of daily production for carrying equipment, warehouse goods in and out, lifting and maintaining heavy equipment and material transportation, can reduce manpower, reduce production operation cost and improve working efficiency, but is the same as an automobile crane, and the portal frame in the prior art is difficult to maintain the stability of the lifted articles.

Based on the improvement, the inventor improves on the basis of the existing portal frame, and a limiting device is added to form a lifting platform capable of clamping and fixing the air inlet channel in the lifting process, so that the stability of the air inlet channel state in the lifting process is realized, and the air inlet channel is prevented from shaking in a windy environment. Of course, the lifting platform can also be used for lifting articles in other fields, such as loading and unloading of cargoes on automobiles, lifting of large engine parts in automobile repair workshops and the like. When the lifting platform is specifically designed, the overall size of the lifting platform can be determined according to the articles to be lifted, and the overall size of the lifting platform is reduced as much as possible while the lifting work is ensured to be smoothly carried out, so that the transportation difficulty is reduced.

Fig. 1-5 show a lifting platform according to one embodiment of the present utility model, which includes a gantry 1, a hoist 2, and a first limiting component 3, where the gantry 1 includes a track beam 11, two columns 12 disposed at two ends of the length of the track beam 11, and a base 13 for supporting the columns 12, the track beam 11 may be specifically made of an i-beam, the hoist 2 is slidably mounted on the track beam 11, and is used as a main functional component for lifting an article, and the hoist 2 can also reciprocate along the length direction of the track beam 11 to find the position of the article. The first limiting assemblies 3 are two groups, are oppositely arranged on the two upright posts 12, can be connected with the lifted object and apply tension to the lifted object, and are matched with the hoist 2 to limit and fix the object.

The lifting platform utilizes the portal frame 1 and the hoist crane 2 arranged on the portal frame 1 to realize the lifting of the articles, and simultaneously utilizes the two groups of first limiting assemblies 3 respectively arranged on the two upright posts 12 of the portal frame 1 to limit the lifted articles in cooperation with the hoist crane 2, so that the lifted articles are prevented from shaking in windy environment, and the assembly precision is ensured.

The first limiting component 3 can be a steel wire rope, and two ends of the steel wire rope are respectively connected with two connecting points of the hoisted article. In order to keep the steel wire rope in a pulled state, the length of the steel wire rope needs to be adjusted according to the specification of the lifted articles, and the steel wire rope with the same length is difficult to adapt to the lifted articles with different specifications. In order to avoid the above-mentioned problem, the first limiting component 3 in this embodiment includes a telescopic rod 31 with an adjustable length and a joint 32, one end of the telescopic rod 31 is detachably connected to the inner side of the upright 12, the other end of the telescopic rod is connected to the joint 32, the joint 32 is configured to detachably connect the lifted object, and the lifting platform can be adapted to the lifted object with different specifications by adjusting the length of the telescopic rod 31.

Further, in order to adapt to a connection point preset on the lifted object and corresponding to the first limiting component 3, the telescopic rod 31 is hinged with the upright 12, and can swing up and down by taking the hinge point with the upright 12 as an origin. Specifically, the inner side surface of the upright 12 is provided with a hinge seat, and the telescopic rod 31 is connected with the upright 12 through a hinge shaft penetrating through the hinge seat. Similarly, the joint 32 is connected to the telescopic rod 31 in a hinged manner, and the joint 32 can swing up and down with the hinge point with the telescopic rod 31 as the origin. Obviously, the swing of the telescopic rod 31 has a large range of position adjustment of the joint 32, the range of position adjustment of the joint 32 itself is small, the telescopic rod 31 is suitable for coarse adjustment, and the joint 32 is suitable for fine adjustment.

The shape of the joint 32 is set according to the connection point on the lifted object, generally, the existing structure on the lifted object is used as the connection point, and if the connection point is a hanging ring, the joint 32 can be a shackle; assuming that the lifted object is an air inlet of an aircraft engine, the connection point is an interface arranged on the air inlet and used for being connected with other components of the engine, the joint 32 can be arranged as a T-shaped block, and the T-shaped block can extend out of the joint 32 to be hinged with the telescopic rod 31, so that the first limiting assembly 3 is connected with the air inlet.

Based on the setting of T shape piece, telescopic link 31 includes sleeve pipe 31a and adjusts pole 31b, adjust pole 31b one end attach fitting 32, the other end is along the axial insert locate sleeve pipe 31a in, the one end that sleeve pipe 31a was kept away from to adjust pole 31b is connected with stand 12, in order to restrict the telescopic link 31 length after adjusting, radial insert on the sleeve pipe 31a be equipped with locking screw 31c, through screwing up locking screw 31c, can realize the unclamping or the locking of adjusting pole 31b, adjust pole 31b can also follow self axis and make rotary motion simultaneously, so that the through-hole on the one end that the T shape piece stretched out the interface corresponds with the through-hole on adjusting pole 31b, conveniently insert T shape piece and adjust the articulated axle of pole 31 b.

Referring to fig. 1 and 4, the hoist 2 slides reciprocally on the track beam 11 through the pulley 4 arranged on the track beam 11, the bottom of the pulley 4 is provided with a lifting lug, the hoist 2 is hung on the lifting lug of the pulley 4, the hoist 2 can be either a manual hoist or an electric hoist, the pulley 4 can be driven in an electric or manual mode, and in order to cooperate with the limiting action of the first limiting component 3, the pulley 4 also needs to be kept in a locking state under the driving action of no external force. In order to achieve the above objective, the lifting platform in this embodiment further includes a second limiting component 5, where the second limiting component 5 can improve the stability of the hoist 2 under the windy condition on the premise that the pulley 4 itself rubs and brakes. The second limiting assembly 5 comprises two pull ropes 51, the number of the pull ropes 51 is two, the pull ropes 51 are respectively arranged on two sides of the trolley 4, one end of each pull rope 51 is connected with the trolley 4, the other end of each pull rope can be fixed on the portal frame 1 and is in a tensioning state, the two pull ropes 51 are mutually matched, and pulling forces which are along the length direction of the cross beam and are opposite to each other are respectively provided for the trolley 4, so that the hoist 2 is fixed relative to the track cross beam 11.

For convenient operation, the second limiting assembly 5 further comprises a steering wheel 52 for realizing steering of the pull rope 51 and a fixing ring 53 for conveniently fixing the pull rope 51, and one end of the pull rope 51 is tied on the fixing ring 53 after bypassing the steering wheel 52. Specifically, the steering wheel 52 and the fixing ring 53 are both disposed on the upright 12, wherein the steering wheel 52 has the same height as the pulley 4, and the fixing ring 53 is disposed at a height position of the upright 12 from the base 1-1.2m according to the height of the human body, so as to facilitate tying the pull rope 51 on the fixing ring 53.

Considering the convenience of transportation of the lifting platform, the whole portal frame 1 is in a detachable structure, and the upright posts 12 and the track cross beam 11 and the upright posts 12 and the base are detachably connected in a threaded manner. Meanwhile, in order to ensure the stability of the portal frame 1, the portal frame 1 further comprises an inclined strut 14 arranged between the upright post 12 and the base 13, wherein the inclined strut 14 is obliquely arranged, one end of the inclined strut 14 is connected with the upright post 12, the other end of the inclined strut is connected with the base 13, the same upright post 12 is connected with two inclined struts 14, and the plane where the two inclined struts 14 are located is perpendicular to the track cross beam 11. Similarly, a diagonal brace 14 is also provided between the upright 12 and the rail beam 11, where the diagonal brace 14 forms a stable triangle with the upright 12 and the rail beam 11. It will be appreciated that the diagonal braces 14 are detachably connected to the uprights 12, the diagonal braces 14 to the rail cross member 11, and the diagonal braces 14 to the base 13 by means including, but not limited to, threaded connections.

The pulley 6 is further arranged at the bottom of the portal frame 1, so that the whole lifting platform can be conveniently moved. In order to maintain the stability of the lifting platform during lifting, a third limiting assembly 7 is further arranged on the base 13, the third limiting assembly 7 comprises a supporting leg 71 with adjustable height, and the pulley 6 can be separated from the ground through the supporting leg 71 to prevent the portal frame 1 from moving. Specifically, the third limiting assembly 7 further comprises a fixing sleeve 72 and an adjusting screw 73, wherein the fixing sleeve 72 is vertically fixed on a mounting seat arranged on the side edge of the base 13, the adjusting screw 73 is inserted into the fixing sleeve 72 and is in threaded connection with the fixing sleeve 72, the supporting foot 71 is arranged at one end of the adjusting screw 73 penetrating out of the fixing sleeve 72 and being close to the ground, and the distance between the supporting foot 71 and the ground can be adjusted through rotating the adjusting screw 73, so that the whole lifting platform is limited.

Taking an air inlet channel of an aircraft engine as an example, a disassembly process performed by using the lifting platform in the present embodiment will be described in detail. Firstly, a hoist crane 2 is moved to one side of a portal frame 1, a hoisting platform is moved to the position of an air inlet channel of an aircraft engine, the position of a hoisting assembly is adjusted to be vertically connected with the air inlet channel, then the air inlet channel is limited left and right by utilizing a limiting assembly, the air inlet channel is detached to be separated from the aircraft engine, the hoisting platform is pushed to transfer the air inlet channel into a storage box for storage, and the limiting assembly keeps limiting the air inlet channel in the whole pushing process; the installation process is similar to the process, firstly, the air inlet is lifted by the hoist 2 and fixed by the limiting component, then the air inlet is moved to the installation position and connected with the main component of the aircraft engine, and the limiting component keeps limiting the air inlet in the installation process.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a lift by crane platform, includes portal frame (1) and calabash hanging (2), portal frame (1) contain track crossbeam (11), set up in two stand (12) at track crossbeam (11) length both ends and be used for supporting base (13) of stand (12), calabash hanging (2) slide set up in on track crossbeam (11), its characterized in that still includes:

two groups of first limiting assemblies (3) are respectively arranged on the two upright posts (12), and the first limiting assemblies (3) can be connected with the lifted object and apply tension to the lifted object.

2. Hoisting platform according to claim 1, characterized in that the first limit assembly (3) comprises a telescopic rod (31) with adjustable length and a joint (32), one end of the telescopic rod (31) being connected to the upright (12) and the other end being connected to the joint (32), the joint (32) being configured to detachably connect an article to be hoisted.

3. Hoisting platform according to claim 2, characterized in that the telescopic rod (31) is hinged to the upright (12).

4. A lifting platform according to claim 2 or 3, characterized in that the joint (32) is hinged to the telescopic rod (31).

5. Hoisting platform according to claim 2, characterized in that the telescopic rod (31) comprises a sleeve (31 a), an adjusting rod (31 b) and a locking screw (31 c), the adjusting rod (31 b) being axially inserted into the sleeve (31 a), the locking screw (31 c) being radially inserted into the sleeve (31 a).

6. Hoisting platform according to claim 1, further comprising a second limiting assembly (5), wherein the second limiting assembly (5) comprises two pull ropes (51), and the two pull ropes (51) respectively provide pulling forces to the hoist (2) along the length direction of the track cross beam (11) and opposite to each other.

7. The hoisting platform of claim 6, wherein the second limiting assembly (5) further comprises a steering wheel (52) and a fixed ring (53), the steering wheel (52) and the fixed ring (53) are arranged on the upright (12), and one end of the pull rope (51) bypasses the steering wheel (52) and is tied on the fixed ring (53).

8. Hoisting platform according to claim 1, characterized in that the rail cross-beam (11) is detachably connected to the upright (12), the upright (12) and the base (13).

9. Hoisting platform according to claim 1, characterized in that the bottom of the gantry (1) is provided with pulleys (6).

10. Hoisting platform according to claim 9, further comprising a third limit assembly (7), said third limit assembly (7) comprising height-adjustable support feet (71) provided on said gantry (1).