Elevator car frame side plate lifting device

Abstract

The utility model discloses an elevator car frame side plate lifting device which comprises a lifting stand column, a lead screw, a sliding support, a pair of telescopic arms and a driving device, the lifting stand column is provided with a hollow inner cavity, the front portion of the lifting stand column is open, and a bottom plate and an upper cover are fixed to the bottom and the top of the lifting stand column respectively. The lead screw is arranged in the lifting stand column in a penetrating mode. A lead screw nut is arranged on the lead screw in a penetrating manner; the sliding support is limited in the hollow inner cavity of the lifting stand column, can slide up and down and is fixed to the lead screw nut. And the telescopic arm is rotatably connected with the sliding bracket through a pin shaft. When the side plate lifting device of the elevator car frame is used, in the car assembling process, the vertical position of a side plate workpiece can be adjusted through driving of the motor, operation is convenient and labor-saving, the labor intensity of workers is relieved, and working efficiency is high; besides, the telescopic arm connected with the workpiece can rotate and stretch around the axis of the telescopic arm, position adjustment is flexible, adaptability is good, and workpiece assembling precision is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to elevator hoisting machinery technical field, concretely, it is about a kind of elevator car frame side plate lifting device. BACKGROUND

[0002] Elevator car is the component used to carry passengers or goods and other loads, and car frame is the load-bearing structure of elevator car, and the self-weight and load of car are transmitted to the traction wire rope by car frame. When the elevator safety gear acts or the car bottom hits the buffer, the car frame also bears the reaction force generated thereby, so the car frame needs to have sufficient strength.

[0003] The car frame is generally welded by upper cover, side plate and base frame, in order to ensure the size and position accuracy of car frame, special tooling is designed to ensure the position and perpendicularity of side plate during welding process, and the size of side plate is large and the structure is complex, so the existing assembly process adopts manual moving and adjusting workpiece position, which is low in efficiency and high in labor intensity. UTILITARY MODEL

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a kind of elevator car frame side plate lifting device, can help mechanical lifting workpiece and adjust position in the process of elevator car assembly, high in working efficiency, can reduce the labor intensity of worker, while ensuring welding accuracy.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of elevator car frame side plate lifting device, including lifting column, lead screw, sliding support, a pair of telescopic arm and drive device, wherein:

[0007] The lifting column has a hollow inner cavity, the front part of the lifting column is open, and the bottom and top are respectively fixed with bottom plate and upper cover, and the middle part of the bottom plate and upper cover is respectively provided with lower rolling bearing and upper rolling bearing through bearing seat;

[0008] The lead screw is arranged in the lifting column, and the bottom is supported in the lower rolling bearing, and the top is supported in the upper rolling bearing, and the top end extends out of the upper rolling bearing;The lead screw is provided with lead screw nut;

[0009] The sliding support is limited in the hollow inner cavity of the lifting column and can slide up and down, and is fixed with the lead screw nut;

[0010] The telescopic arm is rotatably connected with the sliding support by pin shaft;

[0011] The driving device comprises a motor, a driving gear and a driven gear, the motor is fixed at the upper end of the lifting column, the driving gear is installed on the output shaft end of the motor, the driven gear is installed on the top end of the extension rolling bearing of the screw rod, and the gear teeth of the two gears are engaged with each other.

[0012] According to the utility model, the sliding support comprises a sliding block, a telescopic arm support and a triangular block, wherein:

[0013] The sliding block is matched with the hollow inner cavity of the lifting column in size, and a fixing hole is arranged on the outer surface and fixed with the screw rod nut through a fixing member;

[0014] The telescopic arm support is of U-shaped structure, has two horizontal folded edges, and two pairs of pin hole are arranged on the two sides of the folded edges;

[0015] The triangular block is fixed with the outer surface of the sliding block and the upper folded edge of the telescopic arm support through two perpendicular surfaces.

[0016] Further, the telescopic arm comprises a base and a plurality of telescopic arms arranged along the outer side of the base; wherein the base is rotatably connected with the telescopic arm support of the sliding support; the plurality of telescopic arms are all hollow square cylinders and are gradually sleeved.

[0017] Further, the telescopic arm has four levels, which are a first telescopic arm, a second telescopic arm, a third telescopic arm and a fourth telescopic arm; the front end of the fourth telescopic arm is closed, and a cylindrical pin is arranged on the upper surface.

[0018] Further, the inner side of the base has two connecting plates, and two circular holes are arranged; the distance between the two connecting plates is matched with the distance between the two folded edges of the telescopic arm support, and the two circular holes correspond to the pin holes of the folded edges, and the two are rotatably connected through the pin.

[0019] According to the utility model, the driving gear installed on the output shaft end of the motor is fixed through a compression check ring and a compression screw; the driven gear installed on the top end of the screw rod is fixed through a compression check ring and a compression screw.

[0020] Further, the modulus of the driven gear and the driving gear is the same, and the number of teeth of the driven gear is greater than that of the driving gear.

[0021] According to the utility model, the area of the bottom plate is greater than that of the bottom of the lifting column, and a fixing hole is arranged on the bottom plate and fixed on the ground through a fixing member, so that the lifting column is in a vertical position.

[0022] Compared with the prior art, the elevator car frame side plate lifting device has the following beneficial effects:

[0023] 1. In the car assembly process, the up and down positions of the side plate workpiece are adjusted by the motor drive, which is convenient and labor-saving, reduces the labor intensity of workers, and has high working efficiency.

[0024] 2. The telescopic arm connected to the workpiece can rotate and telescope around its own axis, and the position adjustment is flexible, which can adapt to the requirements of different installation postures of the workpiece and the size of different types of workpieces, has good adaptability, and has high workpiece assembly precision. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model of elevator car frame side plate lifting device overall structure diagram.

[0026] Figure 2 The structure diagram of the lead screw and nut related parts of the elevator car frame side plate lifting device.

[0027] Figure 3 The structure diagram of the sliding support of the elevator car frame side plate lifting device.

[0028] Figure 4 The structure diagram of the telescopic arm of the elevator car frame side plate lifting device. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail in specific embodiments in combination with the drawings. It should be understood that the following embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model.

[0030] In the following embodiments, "fixing" is generally adopted in the known fixing manner in the technical field, such as welding fixing, bolt fixing, etc., unless otherwise specified.

[0031] As shown in Figure 1 and Figure 2 , the elevator car frame side plate lifting device of the utility model comprises a lifting column 10, a lead screw 20, a sliding support 30, a pair of telescopic arms 40, and a driving device 50, wherein:

[0032] The lifting column 10 has a hollow inner cavity, the front part of the lifting column 10 is open, the bottom and the top are respectively fixed with a bottom plate 11 and an upper cover 12, and the middle parts of the bottom plate 11 and the upper cover 12 are respectively provided with a lower rolling bearing 13 and an upper rolling bearing 14 through a bearing seat; the area of the bottom plate 11 is greater than the bottom of the lifting column 10, and a fixing hole 1 is formed on the bottom plate 11 for being fixed on the ground through a fixing member, such as a screw, so that the lifting column 10 is in a vertical position.

[0033] The screw rod 20 is arranged in the lifting column 10, the bottom of which is supported in the lower rolling bearing 13, the top of which is supported in the upper rolling bearing 14, and the top end 21 of which extends out of the upper rolling bearing 14, so that the screw rod 20 can rotate in the lifting column 10 by means of the lower rolling bearing 13 and the upper rolling bearing 14; the screw rod 20 is arranged with a screw nut 22, it is easy to understand that the screw rod 20 is externally provided with external threads, the screw nut 22 is provided with a through hole with internal threads, and the two are matched; the front surface of the screw nut 22 is also provided with a fixing hole 1, preferably a threaded hole, for fixing the sliding bracket 30.

[0034] In combination Figure 3 As shown, the sliding bracket 30 includes a sliding block 31, a telescopic arm bracket 32, and a triangular block 33. The sliding block 31 is a column made of steel plate, the outer dimensions of which are matched with the hollow inner cavity of the lifting column 10, so that it is limited in the hollow inner cavity of the lifting column 10 and can slide up and down, and the outer surface is provided with a fixing hole 1 corresponding to the fixing hole 1 provided on the front surface of the screw nut 22, so as to be fixed with the screw nut 22 by a fixing member, such as a screw; the telescopic arm bracket 32 is a U-shaped structure made of steel plate, having two horizontal folded edges 321 up and down, and two pairs of pin shaft holes 322 corresponding to the two sides of the folded edge 321, for arranging the pair of telescopic arms 40; the triangular block 33 is fixed with the outer surface of the sliding block 31 and the upper folded edge 321 of the telescopic arm bracket 32 by means of its two perpendicular faces, respectively, to play a role of strengthening support.

[0035] In combination Figure 4As shown, the telescopic arm 40 comprises a base 41 and multiple levels of telescopic arms arranged in sequence along the outer side of the base 41, the base 41 is rotatably connected with the telescopic arm support 32 of the sliding support 30; in this embodiment, the telescopic arm has four levels, which are in sequence a first level telescopic arm 42, a second level telescopic arm 43, a third level telescopic arm 44 and a fourth level telescopic arm 45, the four levels of telescopic arms are all hollow square cylinders, and are sequentially sleeved, that is, the inner hole size of the first level telescopic arm 42 is matched with the outer size of the second level telescopic arm 43 and they are sleeved with each other, the inner hole size of the second level telescopic arm 43 is matched with the outer size of the third level telescopic arm 44 and they are sleeved with each other, the inner hole size of the third level telescopic arm 44 is matched with the outer size of the fourth level telescopic arm 45 and they are sleeved with each other; the front end of the fourth level telescopic arm 45 is closed, and a cylindrical pin 46 is arranged on the upper surface; further, the inner side of the base 41 has two upper and lower connecting plates 411, and two opposite circular holes 412 are arranged, the distance between the two upper and lower connecting plates 411 is matched with the distance between the two upper and lower folding edges 321 of the telescopic arm support 32, and the two circular holes 412 correspond to the pin shaft holes 322 of the folding edges 321, and the two are rotatably connected through the pin shaft 4, so that the telescopic arm 40 can rotate left and right in the horizontal direction along the lifting column 10. The structure and mounting mode of the two telescopic arms 40 are the same.

[0036] The driving device 50 comprises a motor 51, a driving gear 52 and a driven gear 53, the motor 51 is fixed at the upper end of the lifting column 10 through a fixing member such as a fastening screw, and the axis of the motor 51 is parallel to the lead screw 20; the driving gear 52 is installed on the output shaft end of the motor 51 and is fixed through a compression check ring 2 and a compression screw 3; the driven gear 53 is installed on the top end 21 of the lead screw 20 extending out of the upper rolling bearing 14 and is fixed through a compression check ring 2 and a compression screw 3; the modulus of the driven gear 53 and the driving gear 52 are the same, the teeth of the two gears are engaged with each other, and the number of teeth of the driven gear 53 is greater than that of the driving gear 52.

[0037] The working principle of the elevator car frame side plate lifting device of the utility model is as follows:

[0038] When the motor 51 rotates, the motor output shaft drives the driving gear 52 to rotate, and through the meshing transmission of the driving gear 52 and the driven gear 53, the driven gear 53 is driven to rotate and realize speed reduction; since the upper end 21 of the lead screw 20 is fixedly connected with the driven gear 53, the lead screw 20 rotates under the driving of the driven gear 53, the rotation of the lead screw 20 drives the lead screw nut 22 to move up and down along the lead screw 20, since the lead screw nut 22 is fixedly connected with the sliding block 31 of the sliding support 30, the up and down movement of the lead screw nut 22 drives the sliding support 30 and the two telescopic arms 40 installed on the two sides of the sliding support 30 to move up and down.

[0039] The cylindrical pin 46 at the front end of the four-stage telescopic arm 45 is connected to the pin hole on the workpiece of the elevator car frame side plate, and when the telescopic arm 40 rises along the sliding support 30, the workpiece of the elevator car frame side plate is lifted to the specified position for assembly operation, which is simple to operate and greatly saves labor and effort; meanwhile, the two telescopic arms 40 can rotate around their axes (pin shafts 4), and can also be adjusted in length through multiple stages of telescopic adjustment, so as to adapt to different assembly positions and size requirements of the workpiece of the elevator car frame side plate, thereby improving the adaptability of the equipment.

Claims

1. A lifting device for the side plate of an elevator car frame, characterized in that, It includes a lifting column (10), a lead screw (20), a sliding bracket (30), a pair of telescopic booms (40), and a drive unit (50), wherein: The lifting column (10) has a hollow inner cavity. The front of the lifting column (10) is open, and the bottom and top are respectively fixed with a base plate (11) and an upper cover (12). The middle part of the base plate (11) and the upper cover (12) are respectively provided with a lower rolling bearing (13) and an upper rolling bearing (14) through bearing seats. The lead screw (20) is inserted into the lifting column (10), with its bottom supported in the lower rolling bearing (13) and its top supported in the upper rolling bearing (14), and its top end (21) extending out of the upper rolling bearing (14); a lead screw nut (22) is inserted into the lead screw (20). The sliding bracket (30) is confined within the hollow cavity of the lifting column (10) and can slide up and down, and is fixed to the lead screw nut (22); The telescopic arm (40) is rotatably connected to the sliding bracket (30) via a pin (4); The drive device (50) includes a motor (51), a drive gear (52), and a driven gear (53). The motor (51) is fixed at the upper end of the lifting column (10). The drive gear (52) is mounted on the output shaft end of the motor (51). The driven gear (53) is mounted on the top end (21) of the ball bearing (14) extending from the lead screw (20), and the teeth of the two gears mesh with each other.

2. The elevator car frame side plate lifting device according to claim 1, characterized in that, The sliding bracket (30) includes a slider (31), a telescopic arm bracket (32), and a triangular block (33), wherein: The outer dimensions of the slider (31) are adapted to the hollow inner cavity of the lifting column (10), and a fixing hole (1) is provided on the outer surface, and it is fixed to the lead screw nut (22) by a fixing component. The telescopic arm bracket (32) has a U-shaped structure with two horizontal folded edges (321) on the upper and lower sides, and two pairs of corresponding pin holes (322) are opened on both sides of the folded edges (321). The triangular block (33) is fixed to the outer surface of the slider (31) and the upper folded edge (321) of the telescopic arm bracket (32) by means of its two perpendicular faces.

3. The elevator car frame side plate lifting device according to claim 2, characterized in that, The telescopic arm (40) includes a base (41) and multiple telescopic arms arranged sequentially along the outer side of the base (41); wherein the base (41) is rotatably connected to the telescopic arm bracket (32) of the sliding bracket (30); the multiple telescopic arms are all hollow square cylinders and are connected in stages.

4. The elevator car frame side plate lifting device according to claim 3, characterized in that, The telescopic arm has four stages, namely, a first-stage telescopic arm (42), a second-stage telescopic arm (43), a third-stage telescopic arm (44), and a fourth-stage telescopic arm (45); the front end of the fourth-stage telescopic arm (45) is closed, and a cylindrical pin (46) is provided on its upper surface.

5. The elevator car frame side plate lifting device according to claim 3, characterized in that, The inner side of the base (41) has two connecting plates (411) and two opposing round holes (412). The distance between the two connecting plates (411) is adapted to the distance between the two folded edges (321) of the telescopic arm bracket (32). The two round holes (412) correspond to the pin holes (322) of the folded edges (321). The two are rotatably connected by the pin (4).

6. The elevator car frame side plate lifting device according to claim 1, characterized in that, The drive gear (52) installed on the output shaft end of the motor (51) is fixed by a retaining ring (2) and a clamping screw (3); the driven gear (53) installed on the top end (21) of the lead screw (20) is fixed by a retaining ring (2) and a clamping screw (3).

7. The elevator car frame side plate lifting device according to claim 1, characterized in that, The driven gear (53) and the driving gear (52) have the same module, and the number of teeth of the driven gear (53) is greater than the number of teeth of the driving gear (52).

8. The elevator car frame side plate lifting device according to claim 1, characterized in that, The area of ​​the base plate (11) is larger than the bottom of the lifting column (10), and the base plate (11) is provided with fixing holes (1) for fixing to the ground by fasteners so that the lifting column (10) is in a vertical position.

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