Frame type ground mounting structure tensioning device
By setting a guide structure between the spring plate and the side plate, the problem of ensuring the parallelism of the column is solved, and the linear sliding and synchronous movement of the spring plate are realized, which improves the stability and accuracy of the elevator tensioning device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-10
AI Technical Summary
In existing elevator tensioning devices, it is difficult to ensure the parallelism of the two columns, which can lead to slippage, jamming, or shaking, affecting the accuracy of the wire rope tensioning.
A guide structure, including a guide rod and an elongated hole, is set between the spring pull plate and the side plate to ensure that the spring pull plate slides up and down in a straight line and is fixed by a guide sleeve and a locking nut to achieve synchronous sliding.
It improves the guiding properties of sliding, reduces the requirements for machining accuracy, ensures that the spring plate moves in a straight line during sliding, and improves the stability and accuracy of the tensioning device.
Smart Images
Figure CN224105336U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to elevator parts technical field, specifically is a frame formula ground installation structure tensioner. BACKGROUND
[0002] The elevator tensioner is usually installed at the top of the shaft and directly connected with the steel wire rope. The inside contains a spring, which can automatically adjust according to the tension change of the steel wire rope. The tensioner can also be installed on one side of the pit at the bottom of the shaft to ensure the cooperation with the speed limiter and maintain the proper tension of the steel wire rope.
[0003] The prior art discloses a belt conveyor counterweight tensioner, which comprises a conveying belt, the conveying belt is arranged on a change-over drum, the change-over drum is arranged on a frame, the frame is arranged on left-right symmetrical stand columns, the stand columns are installed on the ground through fixing blocks at bottom ends, spring sleeves are arranged at bottom portions of the stand columns, top portions of the spring sleeves are connected with the frame through hooks, the hooks play a role of connecting the spring sleeves and the frame, the hooks are convenient to disassemble and assemble, and the hooks play a role of being convenient and fast. Bottom portions of the spring sleeves are provided with adjusting pressure plates, two ends of the adjusting pressure plates are provided with adjusting screws for adjusting tension of the spring sleeves, and counterweight blocks are hung on the frame. The top end of the spring is connected with the frame, the bottom portion of the spring is provided with the adjusting pressure plate, and the adjusting pressure plate is fixed at the bottom portion of the spring through the adjusting screw. The tension of the belt is adjusted through the adjusting screw, and the left-right deviation of the belt can also be adjusted through the adjusting screw. The bottom end of the spring is fixed at the bottom portion of the stand column. The tensioner has the following defects: the spring sleeves are arranged on the stand columns, the frame and the counterweight blocks are moved downward along the stand columns to press the spring, the two stand columns of the structure are embedded in the through hole of the frame, theoretically, as long as the two are absolutely parallel, the two can slide, but in fact, the straightness of the stand column and the straightness of the long hole are difficult to be straight, in addition, the parallelism of the plurality of stand columns is also difficult to be parallel, so that the downward movement is blocked. Of course, the cooperation gap between the long hole and the stand column can be increased, but the counterweight block shakes when moving downward or upward, and the accuracy is affected. UTILITY MODEL CONTENTS
[0004] The utility model wants to solve the technical problem of increasing the guide structure on the two side poles and the spring pull plate, thereby increasing the guide effect of the spring pull plate on each side when sliding up and down.
[0005] The utility model discloses a technical scheme, provide a kind of frame ground mounting structure tensioning device with following structure, including the rectangular frame of being composed of top plate, bottom plate and two side plates and rope wheel;Rope wheel support is equipped on the rectangular frame, the rope wheel support is transversely arranged and is equipped with rotating shaft in the middle, the rope wheel is rotatably connected in the middle of rope wheel support by rotating shaft, the both ends of the rope wheel support are equipped with one spring pull plate respectively, connecting rod is equipped between the spring pull plate and top plate, elastic device is equipped on the connecting rod and the both ends are respectively abutted on spring pull plate and top plate, two groups of elastic device respectively promote rope wheel support downward and the upward tension of being received with rope wheel is balanced;It is characterized in that: every spring pull plate and the side plate of being connected are equipped with guide structure, the guide structure makes spring pull plate move up and down on a straight line, and the both ends of the two groups of spring pull plate slide synchronously and the sliding direction of both is parallel.
[0006] The connecting rod is a screw rod, the bottom is fixed with the spring pull plate, the top passes through the top plate and is fixed by multiple bolts.
[0007] The elastic device is a spring, the spring is sleeved outside the connecting rod, and the bottom abuts against the spring pull plate, and the top abuts against the bottom surface of the top plate.
[0008] Every spring pull plate and the side plate of being connected are equipped with guide structure, which means that the guide structure includes a guide rod, a first long hole and a second long hole provided on the side plate, the side plate includes a front plate and a back plate arranged in parallel, the first long hole is vertically provided on the front plate, the second long hole is vertically provided on the back plate, the first long hole and the second long hole correspond in front and back positions, one end of the guide rod penetrates the first long hole, the other end penetrates the second long hole, the middle part of the guide rod is fixed with the spring pull plate, and the spring pull plate drives the guide rod to slide in the first long hole and the second long hole when moving up and down.
[0009] A guide sleeve is arranged at the connection between the guide rod and the first long hole and the second long hole.
[0010] The middle part of the guide rod is provided with a protruding block embedded between the front plate and the back plate of the spring pull plate.
[0011] The outer wall of the guide sleeve is provided with an annular step, the annular step abuts against the side plate to be axially positioned, and the part of the guide rod extending out of the side plate is a screw rod, which is locked with the guide sleeve by a locking nut on the outside to be positioned with the side plate.
[0012] One of the side plates is provided with a switch, and the spring pull plate on the same side is provided with a trigger rod, the trigger rod is connected with the trigger switch, the trigger rod is pressed on the trigger end of the switch in the normal state, and the trigger rod is separated from the trigger end of the switch upward in the trigger state to send a signal.
[0013] With the above structure, the present application has the following advantages: the guiding structure is arranged on each spring plate and the connected side plate, the guiding structure enables the spring plate to move up and down on a straight line, and the two groups of spring plates slide upward synchronously and the sliding directions of the two groups are parallel, so that the spring plate increases the guiding property while sliding, thereby enabling the spring plate to slide on a straight line.
[0014] As an improvement, the connecting rod is a screw rod, the bottom is fixed with the spring plate, the top passes through the top plate and is fixed with a plurality of bolts, and the two ends of the bolt are convenient for connection and fixation.
[0015] As an improvement, the guiding structure arranged on each spring plate and the connected side plate comprises a guiding rod and first and second long holes arranged on the side plate, the side plate comprises a front plate and a back plate arranged in parallel, the first long hole is vertically arranged on the front plate, the second long hole is vertically arranged on the back plate, the first long hole and the second long hole are in corresponding positions in front and back, one end of the guiding rod penetrates the first long hole, the other end penetrates the second long hole, the middle part of the guiding rod is fixed with the spring plate, and the spring plate drives the guiding rod to slide in the first long hole and the second long hole when moving up and down, the guiding structure has low requirement on machining precision and good guiding effect.
[0016] As an improvement, a guiding sleeve is arranged at the connection between the guiding rod and the first and second long holes to protect the guiding rod.
[0017] As an improvement, the middle part of the guiding rod is provided with a protruding block embedded between the front and back plates of the spring plate, so that the structure is more compact.
[0018] As an improvement, an annular step is arranged on the outer wall of the guiding sleeve, the annular step is in abutment with the side plate to be axially positioned, the part of the guiding rod extending out of the side plate is a screw rod, and the guiding sleeve is locked by the locking nut on the outside to be positioned with the side plate, so that the connecting strength is increased. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a schematic view of one side of the frame type ground installation structure tensioning device.
[0020] Figure 2 It is a schematic view of the other side of the frame type ground installation structure tensioning device.
[0021] Figure 3 It is a schematic view of the frame type ground installation structure tensioning device.
[0022] Figure 4It is the cross section schematic view of the frame type ground installation structure tensioner of the utility model.
[0023] Figure 5 It is the vertical cross section schematic view of the frame type ground installation structure tensioner of the utility model.
[0024] Figure 6 It is the vertical cross section schematic view of the frame type ground installation structure tensioner of the utility model.
[0025] Figure 7 It is the split schematic view of the connecting component on the spring pull plate of one side of the utility model.
[0026] Figure 8 It is the split schematic view of the spring pull plate and guide rod of the utility model.
[0027] Figure 9 It is the connecting schematic view of the spring pull plate and guide rod of the utility model.
[0028] As shown in the figure: 1, top plate, 2, bottom plate, 3, side plate, 4, rope wheel, 5, rope wheel support, 6, spring pull plate, 7, connecting rod, 8, spring, 9, guide rod, 10, first long hole, 11, second long hole, 12, guide sleeve, 13, lug, 14, locking nut, 15, trigger switch, 16, trigger rod. DETAILED DESCRIPTION
[0029] The utility model will be further described below in combination with the drawings.
[0030] As Figures 1-9 shown, the frame type ground installation structure tensioner of the utility model, including by top plate 1, bottom plate 2 and two side plates 3 the rectangular frame and rope wheel 4, rectangular frame forms rigid support structure.Rope wheel 4 is installed in the rectangular frame.Top plate 1, bottom plate 2 and two side plates 3 all adopt the plate material of U type cross section.
[0031] The rectangular frame is equipped with rope wheel support 5, and the rope wheel support 5 is transversely arranged and is provided with a rotating shaft in the middle, and the rope wheel 4 is rotatably connected to the middle of the rope wheel support 5 through the rotating shaft.
[0032] As Figure 3 and Figure 4 shown, the rope wheel support 5 is provided with a spring pull plate 6 at both ends respectively, and the spring pull plate 6 serves as the sliding end of the rope wheel support 5 and the rope wheel 4 sliding up and down.The connecting rod 7 is arranged between the spring pull plate 6 and the top plate 1, and the connecting rod 7 is provided with elastic devices and abuts against the spring pull plate 6 and the top plate 1 at both ends respectively, and the two groups of elastic devices push the rope wheel support 5 downward and balance the upward pulling force received by the rope wheel 4.
[0033] As Figure 1, Figure 2 and Figure 3 As shown, each spring plate 6 and the connected side plate 3 are provided with a guide structure. The guide structure allows the spring plate 6 to move up and down in a straight line, and the two sets of spring plates 6 slide upward synchronously and their sliding directions are parallel.
[0034] like Figure 5 and Figure 6 As shown, the connecting rod 7 is a screw rod, with its bottom fixed to the spring pull plate 6 and its top passing through the top plate 1 and fixed with multiple bolts. The screw rod 7 passes through the top plate 1 and is fitted with a compression spring 8 to provide downward preload.
[0035] The elastic device is a spring 8, which is sleeved on the connecting rod 7. The bottom of the spring 8 abuts against the spring pull plate 6, and the top abuts against the bottom surface of the top plate 1. After installation, the spring 8 is in a compressed state, thereby providing the spring pull plate 6 with a downward preload.
[0036] like Figures 1-3 As shown, each spring plate 6 and the connected side plate 3 are provided with a guide structure, which means that the guide structure includes a guide rod 9 and a first elongated hole 10 and a second elongated hole 11 provided on the side plate 3. The side plate 3 includes a front plate and a back plate arranged in parallel. The first elongated hole 10 is vertically provided on the front plate, and the second elongated hole 11 is vertically provided on the back plate. The first elongated hole 10 and the second elongated hole 11 are positioned in a corresponding manner. One end of the guide rod 9 passes through the first elongated hole 10, and the other end passes through the second elongated hole 11. The symmetrical constraint of the elongated holes of the front / back plates and the guide rod effectively eliminates lateral load.
[0037] The middle part of the guide rod 9 is fixed to the spring pull plate 6. When the spring pull plate 6 moves up and down, it drives the guide rod 9 to slide in the first elongated hole 10 and the second elongated hole 11.
[0038] like Figure 8 and Figure 9 As shown, a guide sleeve 12 is provided at the connection between the guide rod 9 and the first elongated hole 10 and the second elongated hole 11. The outer wall of the guide sleeve 12 is provided with an annular step, which abuts against the side plate 3 for axial positioning. The part of the guide rod 9 that extends out of the side plate 3 is a screw, and the guide sleeve 12 is locked and positioned with the side plate 3 by the locking nut 14 on the outside.
[0039] like Figure 8 As shown, the guide rod 9 has a protrusion 13 in the middle and is embedded between the front and rear plates of the spring pull plate 6.
[0040] like Figure 4As shown in the drawings, one of the side plates 3 is provided with a switch 15, and the spring plate 6 on the same side is provided with a trigger lever 16 connected with the switch 15. In normal state, the trigger lever 16 presses the trigger end of the switch 15, and in trigger state, the trigger lever 16 separates from the trigger end of the switch 15 upward to send a signal.
Claims
1. A frame type ground installation structure tensioning device, comprising a rectangular frame composed of a top plate (1), a bottom plate (2) and two side plates (3), and a rope wheel (4); the rectangular frame is provided with a rope wheel support (5), the rope wheel support (5) is transversely arranged and is provided with a rotating shaft in the middle, the rope wheel (4) is rotatably connected to the middle of the rope wheel support (5) through the rotating shaft, the two ends of the rope wheel support (5) are respectively provided with a spring pull plate (6), a connecting rod (7) is arranged between the spring pull plate (6) and the top plate (1), the connecting rod (7) is provided with elastic devices and the two ends of the connecting rod (7) respectively abut against the spring pull plate (6) and the top plate (1), two groups of elastic devices respectively push the rope wheel support (5) downward and balance the upward pulling force received by the rope wheel (4); characterized in that: Each spring plate (6) and the connected side plate (3) are provided with a guide structure, which makes the spring plate (6) move up and down in a straight line, and the two groups of spring plates (6) slide synchronously upward and the sliding direction of the two groups is parallel.
2. A framed ground mounted structure tensioning device according to claim 1, characterised in that: The connecting rod (7) is a screw rod, the bottom of which is fixed with the spring plate (6), and the top of which penetrates the top plate (1) and is fixed with a plurality of bolts.
3. A framed ground mounted structure tensioning device according to claim 2, characterised in that: The elastic device is a spring (8), which is sleeved outside the connecting rod (7), and the bottom of which abuts against the spring plate (6), and the top of which abuts against the bottom surface of the top plate (1).
4. The framed ground mounted structure tensioning device of claim 1, wherein: Each spring plate (6) and the connected side plate (3) are provided with a guide structure, which means that the guide structure includes a guide rod (9) and a first long hole (10) and a second long hole (11) provided on the side plate (3), the side plate (3) includes a front plate and a back plate arranged in parallel, the first long hole (10) is vertically arranged on the front plate, the second long hole (11) is vertically arranged on the back plate, the first long hole (10) and the second long hole (11) correspond in front and back positions, one end of the guide rod (9) penetrates the first long hole (10), the other end of the guide rod (9) penetrates the second long hole (11), the middle part of the guide rod (9) is fixed with the spring plate (6), and the spring plate (6) drives the guide rod (9) to slide in the first long hole (10) and the second long hole (11) when moving up and down.
5. A framed ground mounted structure tensioning device according to claim 4, characterised in that: The connecting part of the guide rod (9) and the first long hole (10) and the second long hole (11) is provided with a guide sleeve (12).
6. A framed ground mounted structure tensioning device according to claim 5, characterised in that: The middle part of the guide rod (9) is provided with a protruding block (13) and is embedded between the front plate and the back plate of the spring plate (6).
7. The framed ground mounted structure tensioning device of claim 5, wherein: The outer wall of the guide sleeve (12) is provided with an annular step, the annular step abuts against the side plate (3) to be axially positioned, the part of the guide rod (9) extending out of the side plate (3) is a screw rod, and the guide sleeve (12) is locked by the locking nut (14) outside to be positioned with the side plate (3).
8. The framed ground mounted structure tensioning device of claim 5, wherein: One of the side plates (3) is provided with a switch (15), and the spring plates (6) on the same side are provided with a trigger rod (16), the trigger rod (16) is connected with the trigger switch (15), in the normal state, the trigger rod is pressed on the trigger end of the switch (15), and in the trigger state, the trigger rod (16) is separated from the trigger end of the switch (15) upward to send a signal.