Counterweight frame double-protection structure

Abstract

The utility model provides a double-protection structure of a counterweight frame, which is characterized by comprising an upper fixing plate, a lower fixing plate, a wheel shaft mechanism, a U-shaped frame, a left frame plate, a right frame plate and a limiting mechanism, a pair of upper fixing plate and lower fixing plate is installed at one end of the left frame plate and one end of the right frame plate, the left frame plate, the right frame plate, the upper fixing plate and the lower fixing plate define a counterweight frame of a rectangular frame structure, the wheel shaft mechanism comprises a diversion sheave and a wheel shaft, the center of the diversion sheave penetrates through the wheel shaft, and the two ends of the wheel shaft penetrate through the upper fixing plate and the lower fixing plate. The diversion sheave is located between the upper fixing plate and the lower fixing plate, the side faces of the two ends of the wheel shaft are sunken to form grooves, the upper fixing plate and the lower fixing plate are each provided with a limiting mechanism, and the limiting mechanisms extend into the grooves. The stability of the steel wire rope when the steel wire rope is wound on the diversion sheave is further improved, and the working efficiency of winding of the whole diversion sheave is improved.

Description

Technical Field

[0001] The utility model relates to a protective structure, in particular to a double protective structure of a counterweight frame. Background Art

[0002] Most people live in high-rise buildings. To facilitate travel, elevators are almost universally equipped, making them an essential means of transportation. Elevators typically serve several floors within a building. Their cars travel on at least two rows of rigid tracks perpendicular to the horizontal plane or inclined at an angle of less than 15 degrees from the vertical. The traction system primarily generates and transmits power to operate the elevator. The traction system includes a counterweight, which balances the elevator car's ascent and descent.

[0003] In the prior art, the counterweight device includes: a counterweight frame, a counterweight block, a deflector pulley, an axle and a nut. The counterweight block is installed in the counterweight frame, and a rotatable deflector pulley is installed in the counterweight block. The deflector pulley is installed on the axle, and the axle passes through the counterweight frame. Nuts are threadedly connected at both ends of the axle, and the nut is threadedly connected to the axle. The deflector pulley is for the wire rope to pass around.

[0004] Although the above-mentioned counterweight device can balance the traction system to raise and lower the elevator car, the counterweight device still has the following disadvantages: in the process of raising and lowering the elevator car, the counterweight device will inevitably shake, causing the nut on the wheel axle to loosen, and then the wheel axle and the counterweight frame to separate, causing the counter rope pulley to fall and the counterweight block to slip. Utility Model Content

[0005] The utility model provides a double protection structure for a counterweight frame, which solves the problem in the prior art that the wheel axle and the counter rope pulley are easily dropped due to the nut being threadedly connected to the wheel axle.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: The present invention provides a double protection structure for a counterweight frame, comprising: an upper fixing plate, a lower fixing plate, an axle mechanism, a U-shaped frame, a left frame plate, a right frame plate and a limiting mechanism;

[0007] A pair of upper fixing plates and lower fixing plates are installed at one end of the left frame plate and one end of the right frame plate, and another pair of upper fixing plates and lower fixing plates are installed at the other end of the left frame plate and the other end of the right frame plate. The left frame plate, the right frame plate, the upper fixing plates and the lower fixing plates surround a counterweight frame with a rectangular frame structure, and a counterweight block is installed in the counterweight frame;

[0008] The wheel and axle mechanism includes: a deflecting pulley and a wheel axle, the center of the deflecting pulley passes through the wheel axle, and the two ends of the wheel axle pass through the upper fixed plate and the lower fixed plate, the deflecting pulley is located between the upper fixed plate and the lower fixed plate, and the side surfaces of the two ends of the wheel axle are concave to form grooves, and the concave direction of the grooves is located in the radial direction of the wheel axle;

[0009] A limiting mechanism is installed on both the upper fixing plate and the lower fixing plate. The limiting mechanism extends into the groove to limit the wheel axle from being separated from the upper fixing plate or the lower fixing plate in the Z direction.

[0010] Preferably, the outside of the anti-rope pulley is surrounded by a steel wire rope, the U-shaped frame is connected to the top surface of the upper fixed plate and the bottom surface of the lower fixed plate, and the U-shaped frame is surrounded by the steel wire rope.

[0011] Preferably, a ball bearing is installed between the inner wall of the deflecting pulley and the outer wall of the wheel shaft, and the deflecting pulley can rotate relative to the wheel shaft.

[0012] Preferably, there are two limiting mechanisms, the first limiting mechanism is installed on the upper fixing plate, and the second limiting mechanism is installed on the lower fixing plate;

[0013] Each limiting mechanism includes: a first limiting plate and a second limiting plate, the first limiting plate being fixed to the upper fixing plate or the lower fixing plate, one side of the first limiting plate being embedded in the wheel axle groove, and the first limiting plate limiting the movement of the wheel axle in the Z direction;

[0014] One end of the second limiting plate is relatively fixed to the upper fixing plate and the lower fixing plate, and the other end of the second limiting plate is fixed to the end face of the wheel axle by a bolt. The second limiting plate limits the horizontal movement of the wheel axle.

[0015] Preferably, the second limiting plate is L-shaped, and the end of the second limiting plate away from the bolt is fixed to the first limiting plate.

[0016] Preferably, the left frame plate and the right frame plate both include: a plate body and end blocks, the plate body is a U-shaped structure, the plate body is used to surround the counterweight block, and end blocks are formed at both ends of the plate body, the end blocks are L-shaped structures, and the end blocks are used to connect the counterweight block.

[0017] Preferably, a positioning mechanism is installed between the upper fixed plate and the lower fixed plate, and the positioning mechanism is used to limit the steel wire rope from being separated from the anti-rope pulley.

[0018] Preferably, the positioning mechanism includes: a mounting seat, a shaft roller and a positioning wheel, the mounting seat is installed between the upper fixed plate and the lower fixed plate, the mounting seat is passed through by the shaft roller, the shaft roller passes through the positioning wheel, and the positioning wheel is in close contact with the wire rope.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1) The double protection structure of the counterweight frame is equipped with a limiting mechanism on both the upper fixed plate and the lower fixed plate. The limiting mechanism extends into the groove, and the limiting mechanism can limit the wheel axle from detaching from the upper fixed plate or the lower fixed plate in the Z direction; 2) The U-shaped frame is connected to the upper fixed plate and the lower fixed plate, and is wrapped around the outside of the wire rope. When the return rope pulley wraps around the wire rope, the U-shaped frame can prevent the wire rope from shifting its position during the wrapping process and causing it to fall off the return rope pulley, thereby increasing the stability of the return rope pulley wrapping; 3) By installing a positioning mechanism on the upper fixed plate and the lower fixed plate, a positioning wheel is installed on the positioning mechanism, and the positioning wheel is close to the wire rope, which further increases the stability of the wire rope when wrapping around the return rope pulley, thereby improving the working efficiency of the entire return rope pulley wrapping.

[0020] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the double protection structure of the counterweight frame.

[0022] Figure 2 This is a partial schematic diagram of the double protection structure of the counterweight frame.

[0023] Figure numerals: upper fixed plate 1, lower fixed plate 2, axle mechanism 3, anti-rope pulley 31, axle 32, groove 321, ball bearing 33, U-shaped frame 4, left frame plate 5, plate body 51, end block 52, right frame plate 6, limiting mechanism 7, first limiting mechanism 71, first limiting plate 711, second limiting plate 712, bolt 713, second limiting mechanism 72, positioning mechanism 8, mounting seat 81, roller 82, positioning wheel 83. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0025] like Figures 1 to 2 As shown, the utility model proposes a double protection structure for a counterweight frame, comprising: an upper fixing plate 1, a lower fixing plate 2, a wheel axle 32 mechanism 3, a UU-shaped frame 4, a left frame plate 5, a right frame plate 6 and a limiting mechanism 7;

[0026] A pair of upper fixing plates 1 and lower fixing plates 2 are installed at one end of the left frame plate 5 and one end of the right frame plate 6, and another pair of upper fixing plates 1 and lower fixing plates 2 are installed at the other end of the left frame plate 5 and the other end of the right frame plate 6. The left frame plate 5, the right frame plate 6, the upper fixing plates 1 and the lower fixing plates 2 surround a counterweight frame with a rectangular frame structure, and a counterweight block is installed in the counterweight frame;

[0027] The wheel shaft 32 mechanism 3 includes: a deflecting pulley 31 and a wheel shaft 32. The center of the deflecting pulley 31 passes through the wheel shaft 32, and the two ends of the wheel shaft 32 pass through the upper fixing plate 1 and the lower fixing plate 2. The deflecting pulley 31 is located between the upper fixing plate 1 and the lower fixing plate 2. The side surfaces of the wheel shaft 32 are recessed to form grooves 321 at both ends. The recessed direction of the grooves 321 is located in the radial direction of the wheel shaft 32. The grooves 321 are for the limiting plates to be inserted into to limit the wheel shaft 32.

[0028] A limiting mechanism 7 is installed on both the upper fixing plate 1 and the lower fixing plate 2 . The limiting mechanism 7 extends into the groove 321 , thereby limiting the wheel shaft 32 from detaching from the upper fixing plate 1 or the lower fixing plate 2 in the Z direction.

[0029] The outside of the anti-rope pulley 31 is surrounded by a steel wire rope, and the UU-shaped frame 4 is connected to the top surface of the upper fixed plate 1 and the bottom surface of the lower fixed plate 2. The UU-shaped frame 4 surrounds the outside of the steel wire rope. When the anti-rope pulley 31 surrounds the steel wire rope, the UU-shaped frame 4 can prevent the steel wire rope from detaching from the anti-rope pulley 31.

[0030] A ball bearing 33 is installed between the inner wall of the deflecting pulley 31 and the outer wall of the wheel shaft 32 , so that the deflecting pulley 31 can rotate relative to the wheel shaft 32 .

[0031] There are two limiting mechanisms 7, the first limiting mechanism 717 is installed on the upper fixing plate 1, and the second limiting mechanism 727 is installed on the lower fixing plate 2;

[0032] Each limiting mechanism 7 includes: a first limiting plate 711 and a second limiting plate 712, the first limiting plate 711 is fixed on the upper fixing plate 1 or the lower fixing plate 2, and one side of the first limiting plate 711 is embedded in the groove 321 of the wheel shaft 32;

[0033] One end of the second limiting plate 712 is fixed relative to the upper fixing plate 1 and the lower fixing plate 2, and the other end of the second limiting plate 712 is fixed to the end surface of the wheel shaft 32 by a bolt 713;

[0034] When the return pulley 31 rotates, the vibration caused by the rotation will affect the position deviation of the wheel shaft 32. The first limiting plate 711 limits the movement of the wheel shaft 32 in the Z direction, and the second limiting plate 712 limits the movement of the wheel shaft 32 in the horizontal direction.

[0035] The second limiting plate 712 is L-shaped, and an end of the second limiting plate 712 away from the bolt 713 is fixed to the first limiting plate 711 .

[0036] The left frame plate 5 and the right frame plate 6 both include: a plate body 51 and an end block 52. The plate body 51 is a U-shaped structure, which is used to surround the counterweight block. End blocks 52 are formed at both ends of the plate body 51. The end blocks 52 are L-shaped structures and are used to connect the counterweight block.

[0037] A positioning mechanism 8 is installed between the upper fixed plate 1 and the lower fixed plate 2 , and the positioning mechanism 8 is used to prevent the steel wire rope from being separated from the deflecting pulley 31 .

[0038] The positioning mechanism 8 includes: a mounting seat 81, an axis roller and a positioning wheel 83. The mounting seat 81 is installed between the upper fixed plate 1 and the lower fixed plate 2. The mounting seat 81 is passed through by the axis roller, and the axis roller passes through the positioning wheel 83. The positioning wheel 83 is in close contact with the wire rope, and the wire rope is wound around the anti-rope pulley 31 through rotation. The wire rope drives the positioning wheel 83 to rotate. The positioning wheel 83 can limit the position of the wire rope so that it does not deviate from the position when it is wrapped around, so that the wire rope is more firmly wound around the anti-rope pulley 31.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Double protection structure of counterweight frame, characterized by: include: An upper fixing plate (1), a lower fixing plate (2), an axle mechanism (3), a U-shaped frame (4), a left frame plate (5), a right frame plate (6) and a limiting mechanism (7); A pair of upper fixing plates (1) and lower fixing plates (2) are installed at one end of the left frame plate (5) and one end of the right frame plate (6), and another pair of upper fixing plates (1) and lower fixing plates (2) are installed at the other end of the left frame plate (5) and the other end of the right frame plate (6). The left frame plate (5), the right frame plate (6), the upper fixing plates (1) and the lower fixing plates (2) form a counterweight frame with a rectangular frame structure, and a counterweight block is installed in the counterweight frame. The wheel shaft mechanism (3) comprises: a deflecting pulley (31) and a wheel shaft (32); the center of the deflecting pulley (31) passes through the wheel shaft (32); and both ends of the wheel shaft (32) pass through the upper fixed plate (1) and the lower fixed plate (2); the deflecting pulley (31) is located between the upper fixed plate (1) and the lower fixed plate (2); the side surfaces of both ends of the wheel shaft (32) are recessed to form grooves (321); and the recessed direction of the grooves (321) is located in the radial direction of the wheel shaft (32); A limiting mechanism (7) is installed on both the upper fixing plate (1) and the lower fixing plate (2). The limiting mechanism (7) extends into the groove (321) to limit the wheel shaft (32) from being separated from the upper fixing plate (1) or the lower fixing plate (2) in the Z direction.

2. The double protection structure for counterweight frame according to claim 1, characterized in that: The outer side of the anti-rope wheel (31) is surrounded by a steel wire rope, and the U-shaped frame (4) is connected to the top surface of the upper fixed plate (1) and the bottom surface of the lower fixed plate (2), and the U-shaped frame (4) is surrounded by the outer side of the steel wire rope.

3. The double protection structure for counterweight frame according to claim 2, characterized in that: A ball bearing (33) is installed between the inner wall of the deflecting pulley (31) and the outer wall of the wheel shaft (32), and the deflecting pulley (31) can rotate relative to the wheel shaft (32).

4. The double protection structure for counterweight frame according to claim 3, characterized in that: There are two limiting mechanisms (7), a first limiting mechanism (71) is installed on the upper fixing plate (1), and a second limiting mechanism (72) is installed on the lower fixing plate (2); Each limiting mechanism (7) includes: a first limiting plate (711) and a second limiting plate (712); the first limiting plate (711) is fixed on the upper fixing plate (1) or the lower fixing plate (2); one side of the first limiting plate (711) is embedded in the groove (321) of the wheel shaft (32); the first limiting plate (711) limits the movement of the wheel shaft (32) in the Z direction; One end of the second limiting plate (712) is fixed relative to the upper fixing plate (1) and the lower fixing plate (2), and the other end of the second limiting plate (712) is fixed to the end surface of the wheel axle (32) via a bolt (713). The second limiting plate (712) limits the horizontal movement of the wheel axle (32).

5. The double protection structure for counterweight frame according to claim 4, characterized in that: The second limiting plate (712) is L-shaped, and the end of the second limiting plate (712) away from the bolt (713) is fixed to the first limiting plate (711).

6. The double protection structure for counterweight frame according to any one of claims 1 to 5, characterized in that: The left frame plate (5) and the right frame plate (6) both include: a plate body (51) and an end block (52); the plate body (51) is a U-shaped structure, and the plate body (51) is used to surround the counterweight block; the end blocks (52) are formed at both ends of the plate body (51); the end blocks (52) are L-shaped structures, and are used to connect the counterweight block.

7. The double protection structure for counterweight frame according to claim 6, characterized in that: A positioning mechanism (8) is installed between the upper fixed plate (1) and the lower fixed plate (2), and the positioning mechanism (8) is used to limit the separation of the steel wire rope from the anti-ropes wheel (31).

8. The double protection structure for counterweight frame according to claim 7, characterized in that: The positioning mechanism (8) comprises: a mounting seat (81), an axis roller and a positioning wheel (83); the mounting seat (81) is mounted between the upper fixed plate (1) and the lower fixed plate (2); the mounting seat (81) is passed through by the axis roller; the axis roller passes through the positioning wheel (83); and the positioning wheel (83) is in close contact with the wire rope.

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