CN2543934Y

CN2543934Y - Blance detector for hydraulic automatic load-engaging beam in work position

Info

Publication number: CN2543934Y
Application number: CN 02228957
Authority: CN
Inventors: 杨珍荣; 魏波
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-05
Filing date: 2002-04-05
Publication date: 2003-04-09
Anticipated expiration: 2012-04-05

Abstract

The utility model relates to a hydraulic automatic beam lifting balanceable-positioning detecting device, belonging to electromechanical equipments. The utility model solves the problems of the existing gantry crane hydraulic automatic lifting beam that the balanceable-positioning cannot be realized, the reliability is low and the operation is complicated, etc. The device consists of an upper position machine and a lower position machine, and the sensors on the lower position are arranged at two ends of a lifting beam, and the sensors are connected with a fixing board which is arranged on a fixing bracket of the lifting beam. One end of a sensor movable-board is sleeved on a stainless steel tube of the sensor, and the sensor components are hermetically arranged in the stainless steel tube, and the other end thereof is connected with a positioning knockout rod through a screw cap, and the sensor movable board and the positioning knockout rod are arranged on a guiding groove. The device can accurately judge whether the left side and the right side are in a balance state when the lifting beam is positioned and detect whether the forces brought to the left side and the right side are equal when a double lifting-point lifting beam lifts heavy. The operation is easy, the false rate is low and the use is safe.

Description

Hydraulic automatic grabbing Liangping weighing apparatus is with regard to level detecting apparatus

Technical field

The utility model relates to a kind of electronic product, particularly a kind of hydraulic pressure auto clawing beam balance dress in place that detects.

Background technology

At present, the hydraulic automatic grabbing beam has been widely used in grasping weight automatically and the hydroelectric power plant is used to promote significant points such as entery and delivery port, can it the work of normal reliable ground will directly influence the regular event of enterprise, it is can not balance in place that original equipment goes out often to occur grabbing beam in use, can not detect two suspension centres in real time and grab whether problem such as unanimity of the stressed size in the left and right sides of beam when hoisting heavy, complicated operation, the fault rate height, safety and service life are low.

Summary of the invention

The purpose of this utility model to provide exactly a kind of can accurately judge grab beam the right and left balance whether when in place, whether stressed size is consistent about in the time of can detecting two suspension centres in real time and grab the beam hoisting heavy, simple to operate, fault rate is low, safe in utilization, the life-span weighs with regard to level detecting apparatus in long hydraulic automatic grabbing Liangping.

The purpose of this utility model is achieved in that a kind of hydraulic automatic grabbing Liangping weighing apparatus is with regard to level detecting apparatus, form by upper computer 1 and lower computer 2, sensor 3 on the lower computer 2 is installed in grabs the beam two ends, sensor 3 is connected with adapter plate 4, adapter plate 4 is installed in grabs on the beam fixed support 5, sensor activity plate 6 one ends are enclosed within on the stainless steel tube 7 of sensor 3, senser element is encapsulated in the stainless steel tube 7, the other end and push rod in place 8 are connected by nut, and sensor activity plate 6 is installed on the guide groove 10 with push rod 8 in place.The signal wire (SW) 11 of the sensor 3 in the lower computer 2 is connected with upper computer 1 by seal box 9.

Hydraulic automatic grabbing provided by the utility model Liangping weighing apparatus is with regard to level detecting apparatus, because the balance that adopts non-contact type is with regard to level sensor, the detection position is accurate, detection range is wide, can provide signal continuously, realize real-time detection, handle back control by upper computer and grab the beam action, improved work efficiency, ensured that the safety of grabbing beam is in place.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

The utility model adopts following structure: weigh with regard to level detecting apparatus in a kind of hydraulic automatic grabbing Liangping, form by upper computer 1 and lower computer 2, sensor 3 on the lower computer 2 is installed in grabs the beam two ends, sensor 3 is connected with adapter plate 4, adapter plate 4 is installed in grabs on the beam fixed support 5, sensor activity plate 6 one ends are enclosed within on the stainless steel tube 7 of sensor 3, senser element is encapsulated in the stainless steel tube 7, the other end and push rod in place 8 are connected by nut, and sensor activity plate 6 is installed on the guide groove 10 with push rod 8 in place.The signal wire (SW) 11 of the sensor 3 in the lower computer 2 is connected with upper computer 1 by seal box 9.

The utility model principle of work is as follows: sensor 3 is made up of two parts, a part is for detecting the stainless steel tube 7 of displacement, senser element is encapsulated in the stainless steel tube 7, another part is the sensor activity plate 6 that is enclosed within on the stainless steel tube 7, sensor activity plate 6 links together with push rod 8 in place, with push rod 8 motions in place.Do not falling at ordinary times when grabbing beam, sensor activity plate 6 and push rod 8 are nature midnight, are the long status that freely stretches out.Sensor output 3 this moment should the position minimum value.When grabbing beam when in place, push rod in place can move up along guide groove 10, moves up and down thereby drive sensor activity plate 6, and the signal of generation passes in the upper computer 1 through signal wire (SW) 11 and handles, and obtains corresponding shift value.The signal that sensor 3 produces is a continuous signal, in grabbing beam process in place, sensor 3 sends data to upper computer 1, upper computer receives after data handle, answering the data two pieces of jade put together to be transferred to display equipment is used for showing, on the one hand two data are compared, see that difference between it is whether in allowed band.If its difference has exceeded the allowed band scope, upper computer 1 sends alerting signal and reminds operating personal or cut off the control corresponding loop.When grab beam in place after, its difference has still exceeded allowed band, main frame will send alerting signal and remind operating personal and cut off the electricity supply.

Grab beam when the hoisting heavy for two point, when stressed not of uniform size cause or its difference has surpassed the conversation scope of left and right sides suspension centre, upper computer also sends alerting signal or cuts off the control corresponding loop.

In the utility model, sensor 3 adopts the current delivery of RS485 mechanics of communication or standard.Two cover signals transmission and sending sets are housed in the sensor 3, and a cover is RS485 signal (acquiescence), another set of be the normalized current signal or about the on-off signal (meeting an urgent need) that puts in place.Two covering devices are worked simultaneously during normal operation, when a covering device breaks down or signal transmission line breaks down, upper computer 1 switches to another set of emergency facility immediately, and send alerting signal by knowing operating personal, thereby guaranteed the reliability of device and the continuity of work effectively, avoided to live the blindly phenomenon of operation.

Claims

1, a kind of hydraulic automatic grabbing Liangping weighing apparatus is with regard to level detecting apparatus, form by upper computer (1) and lower computer (2), it is characterized in that: the sensor (3) on the lower computer (2) is installed in grabs the beam two ends, sensor (3) is connected with adapter plate (4), adapter plate (4) is installed in grabs on the beam fixed support (5), sensor activity plate (6) one ends are enclosed within on the stainless steel tube (7) of sensor (3), senser element is encapsulated in the stainless steel tube (7), the other end is connected by nut with push rod in place (8), and sensor activity plate (6) is installed on the guide groove (10) with push rod in place (8).

2, hydraulic automatic grabbing according to claim 1 Liangping weighing apparatus is characterized in that with regard to level detecting apparatus: the signal wire (SW) (11) of the sensor (3) in the lower computer (2) is connected with upper computer (1) by seal box (9).