Slip form lifting frame capable of monitoring lifting amount

Abstract

The utility model relates to the field of slip form construction, and discloses a slip form lifting frame capable of monitoring lifting quantity, which comprises a supporting rod, a portal frame, a jack arranged on a lower cross beam of the portal frame and connected with the supporting rod, a limiting wheel set, an encoder and a PLC (programmable logic controller), the limiting wheel set is arranged on an upper cross beam of the door frame and comprises a fixed seat and two limiting wheels which are oppositely arranged, and the two limiting wheels are rotationally arranged on the fixed seat and used for clamping the supporting rod; the encoder is arranged on the fixing base and connected with the rotating shaft of one limiting wheel, and the encoder is in electric signal connection with the PLC. The limiting wheel set is used for clamping the supporting rod, when the jack is used for jacking, the limiting wheel is driven to rotate, the encoder is used for monitoring the rotation amount of the limiting wheel to reflect the moving distance of the jack on the supporting rod, and therefore automatic monitoring of the jacking amount of the jack is achieved, and safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of slipform construction, in particular to a slipform lifting frame capable of monitoring the lifting amount. Background Art

[0002] In the construction of structures such as chimneys and silos, slipform technology is the fastest and most reasonable construction technology. It is safer than the original layer-by-layer formwork casting method, has a smoother cylinder surface, and is faster to construct.

[0003] However, slipform construction also has its drawbacks: the platform system can tilt or twist due to factors such as tilted support rods or varying degrees of lift differences between the jacks on the lifting frame. One of the most critical technical challenges in slipform construction is controlling the synchronous lifting of the jacks. According to the Technical Specifications for Sliding Formwork Engineering, the relative elevation difference between the jacks should not exceed 40mm for every 200-400mm of lift, and the lift difference between adjacent jacks should not exceed 20mm. Excessive lift differences can cause platform deformation and even damage to components and joints.

[0004] At present, the lifting difference of the jack is mainly controlled by manually hanging a horizontal line and manually fixing a limiter. This method mainly relies on the supervision of operators, has a low level of intelligence, is highly dependent on people, and has low safety performance.

[0005] Based on this, the present application provides a sliding form lifting frame that can monitor the lifting amount, which can automatically monitor the lifting amount of the jack and also limit the support rod to ensure that the support rod is in a vertical state. Utility Model Content

[0006] The present invention aims to solve one of the technical problems existing in the prior art. To this end, the present invention provides a sliding form lifting frame capable of monitoring the lifting amount, which can automatically monitor the lifting amount of the jack and simultaneously limit the support rod to ensure that the support rod is in a vertical state.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] Provided is a slipform lifting frame capable of monitoring the lifting amount, comprising a support rod, a gantry, a jack arranged on the lower crossbeam of the gantry and connected to the support rod, a limiting wheel group, an encoder and a PLC controller; the limiting wheel group is arranged on the upper crossbeam of the gantry, and comprises a fixed seat and two oppositely arranged limiting wheels, the two limiting wheels are rotatably arranged on the fixed seat and are used to clamp the support rod; the encoder is arranged on the fixed seat and is connected to the rotating shaft of one of the limiting wheels, and the encoder electrical signal is connected to the PLC controller.

[0009] In some optional embodiments, the wheel surface of the limiting wheel is configured as an arc groove or a V-shaped groove.

[0010] In some optional embodiments, the wheel surface of the limiting wheel is covered with a wear-resistant rubber layer.

[0011] In some optional embodiments, an alarm is further included, which is arranged on the door frame and whose electrical signal is connected to the PLC controller. Preferably, the alarm is an audible and visual alarm.

[0012] In some optional embodiments, a sleeve is provided at the bottom of the fixing seat, a ball bearing sleeve is provided on the inner wall of the sleeve, and the support rod passes through between the ball bearing sleeve and the two limiting wheels.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This utility model uses a limiting wheel group to clamp the support rod. When the jack is lifted, it drives the limiting wheel to rotate. The encoder is used to monitor the rotation amount of the limiting wheel to reflect the movement distance of the jack on the support rod, thereby realizing automatic monitoring of the jacking amount and greatly improving safety.

[0015] 2. The setting of the alarm: when the lifting amount is lower than the set value, the PLC controls the sound and light alarm to sound an alarm, reminding the construction personnel that the lifting frame has abnormal lifting, so as to ensure that the construction personnel can make adjustments in time;

[0016] 3. The sleeve provided at the bottom of the fixed seat of the limiting wheel group can be installed with a ball sleeve, which can limit the support rod, ensure that the support rod is in a vertical state, and prevent the platform system from tilting due to the tilt of the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 This is a front view of the sliding form lifting frame capable of monitoring the lifting amount provided by the utility model;

[0019] Figure 2 yes Figure 1 Side view of the slipform lifting frame that can monitor the lifting amount;

[0020] Figure 3 yes Figure 2 Provided partial enlarged image;

[0021] Figure 4 This is a top view of the position-limiting wheel assembly provided by the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1—support rod, 2—gantry, 2.1—lower beam, 2.2—upper beam, 3—jack, 4—limiting wheel set, 4.1—fixed seat, 4.2—limiting wheel, 4.3—sleeve, 5—encoder, 6—PLC controller, 7—alarm, 8—ball bearing sleeve. DETAILED DESCRIPTION

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0028] Example 1

[0029] This embodiment provides a sliding form lifting frame capable of monitoring the lifting amount, as shown in the attached Figure 1To the attached Figure 3 As shown, it includes a support rod 1, a gantry 2, a jack 3 connected to the support rod 1 on the lower crossbeam 2.1 of the gantry, a limiting wheel set 4, an encoder 5 and a PLC controller 6, wherein: the support rod, the gantry and the jack are the existing technologies of the sliding platform system and are not described in detail here. The limiting wheel set 4 is arranged on the upper crossbeam 2.2 of the gantry 2, and includes a fixed seat 4.1 and two relatively arranged limiting wheels 4.2. The two limiting wheels 4.2 are rotatably arranged on the fixed seat 4.1 and are used to clamp the support rod; specifically, the fixed seat is provided with a through hole for the support rod to pass through. After the support rod passes through the through hole of the fixed seat, it is clamped by the two limiting wheels, as shown in the attached figure. Figure 4 The encoder 5 is mounted on the fixed base 4.1 and connected to the rotating shaft of one of the limiting wheels 4.2. The encoder 5 also provides electrical signal communication to the PLC controller 6. This embodiment utilizes a limiting wheel assembly to clamp the support rod. When the jack is lifted, the limiting wheel rotates. The encoder monitors the rotation of the limiting wheel to reflect the distance the jack has traveled on the support rod. This automatically monitors the lifting distance of the jack, significantly improving safety.

[0030] Preferably, as attached Figure 4 As shown, the wheel surface of the limiting wheel 4.2 is set as an arc groove or a V-shaped groove, and the wheel surface is covered with a wear-resistant rubber layer. This design can increase the friction between the limiting wheel and the support rod.

[0031] Furthermore, it also includes an alarm 7, which is arranged on the door frame 2, and its electrical signal is connected to the PLC controller 6; the alarm 7 is preferably an audible and visual alarm. When the jacking amount is lower than the set value, the PLC controls the audible and visual alarm to sound an alarm, reminding the construction personnel that the lifting frame has an abnormal jacking, so as to ensure that the construction personnel can make timely adjustments.

[0032] Working principle: When the sliding platform system is in the process of jacking, the encoder detects the jacking amount of the sliding platform system by detecting the rotation amount of the limit wheel. When the jacking amount detected by the encoder of a certain lifting frame is lower than the set value, the PLC controller sends an alarm signal to the alarm on the lifting frame. The alarm sends an alarm signal to remind the construction personnel to adjust to the corresponding position to ensure the safety of the sliding platform system, intelligent monitoring, and fast response speed.

[0033] Example 2

[0034] Based on the first embodiment, as shown in the attached Figure 3As shown, in this embodiment, a sleeve 4.3 is provided at the bottom of the fixing seat 4.1. The inner wall of the sleeve 4.3 is provided with a ball bearing sleeve 8. The support rod 1 passes between the ball bearing sleeve 8 and the two limiting wheels 4.2. This design allows the fixing seat to also limit the support rod, ensuring that the support rod is in a vertical position and preventing the platform system from tilting due to the support rod tilting.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sliding form lifting frame capable of monitoring lifting amount, comprising a support rod, a gantry, and a jack provided on a lower crossbeam of the gantry and connected to the support rod; characterized in that: It also includes a limit wheel set, encoder and PLC controller; The limiting wheel assembly is arranged on the upper crossbeam of the door frame, and includes a fixed seat and two relatively arranged limiting wheels, and the two limiting wheels are rotatably arranged on the fixed seat and are used to clamp the support rod; The encoder is arranged on a fixed seat and is connected to the rotating shaft of one of the limiting wheels, and the electrical signal of the encoder is connected to a PLC controller.

2. The sliding form lifting frame capable of monitoring lifting amount according to claim 1, characterized in that: The wheel surface of the limiting wheel is set as an arc groove or a V-shaped groove.

3. The sliding form lifting frame capable of monitoring lifting amount according to claim 2, characterized in that: The wheel surface of the limiting wheel is covered with a wear-resistant rubber layer.

4. The sliding form lifting frame capable of monitoring lifting amount according to claim 1, characterized in that: It also includes an alarm, which is arranged on the door frame and has an electrical signal connected to a PLC controller.

5. The sliding form lifting frame capable of monitoring lifting amount according to claim 4, characterized in that: The alarm is an audible and visual alarm.

6. The sliding form lifting frame capable of monitoring lifting amount according to any one of claims 1 to 5, characterized in that: A sleeve is provided at the bottom of the fixing seat, a ball sliding sleeve is provided on the inner wall of the sleeve, and the supporting rod passes through between the ball sliding sleeve and the two limiting wheels.

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