Tractor capable of displaying traction force on line

Abstract

The utility model discloses a traction machine capable of displaying traction force on line, and belongs to the technical field of pipe traction machines. Comprising a tractor body; the traction machine body is placed on the ground through the movable bottom feet; the fixed base is positioned on the side part of the movable bottom foot and is fixedly arranged; one end of the pressure sensor is connected with the fixed base, and the other end of the pressure sensor is directly or indirectly connected with the movable footing. When the traction machine body works, counter-acting force generated by a pipe is transmitted to the movable bottom feet through the traction machine body and then acts on the pressure sensors, and through a real-time feedback mechanism of the pressure sensors, an operator can know the force change condition in the traction process in real time, so that traction force is accurately adjusted according to actual production requirements, and the production efficiency is improved. And resource consumption caused by safety factors set based on experience is greatly reduced, and the overall production efficiency and economical efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe traction machines, and in particular relates to a traction machine that displays traction force online. Background Art

[0002] The plastic pipe hauling machine is a mechanical device specially used in the production process of plastic pipes. It plays a key role in the plastic pipe extrusion production line. Its main function is to haul and guide the pipe formed by the thermoplastic melt coming out of the extruder head, and ensure that the pipe is evenly hauled and cooled at a constant speed through cooling and shaping, and finally form a pipe product that meets the specifications.

[0003] The structure of the original tractor is generally composed of a frame, a crawler traction device, an upper crawler lifting cylinder, a lower crawler lifting adjustment device, and a foot support device. When working, under the pressure of the cylinder, the traction blocks evenly distributed around the pipe pull the pipe along the central axis of the tractor at a constant speed. At the same time, the pipe generates a reverse pulling force on the tractor that is opposite to the direction of movement of the pipe. In addition to supporting the gravity of the tractor, the foot support device on the frame needs to overcome the friction generated by the tractor and the ground under the action of the reverse pulling force.

[0004] This type of traction machine cannot detect the actual value of the traction force online during actual use. In order to ensure the smooth operation of the production line, the traction force of the traction machine is mainly based on past experience and is generally designed with a larger safety factor, resulting in a large waste of production resources. Summary of the invention

[0005] The utility model aims at the above problems existing in the prior art and proposes a traction machine which can directionally pressurize the surface of a pipe and keep the pressure constant and display the traction force online.

[0006] The utility model can be realized through the following technical solutions:

[0007] A traction machine capable of displaying traction force online, comprising:

[0008] A traction machine body, which is used to provide linear traction power to pull the pipe;

[0009] A movable foot, through which the tractor body is placed on the ground;

[0010] A fixed base, which is located on the side of the movable foot and is fixedly arranged;

[0011] A pressure sensor, one end of which is connected to the fixed base and the other end of which is directly or indirectly connected to the movable foot;

[0012] As the tractor body pulls the pipe straight forward, the pipe provides a reaction force opposite to its moving direction to the tractor body, so as to drive the movable foot to squeeze or pull the pressure sensor, and the pressure sensor feeds back the traction force during the traction process in real time.

[0013] As a further improvement of the present invention, the tractor body comprises:

[0014] A frame, in which a crawler traction device is provided, through which the pipe is towed;

[0015] A PLC display screen is electrically connected to the pressure sensor, and data collected by the pressure sensor is fed back to the PLC display screen.

[0016] As a further improvement of the present invention, the movable foot can be arranged at the bottom or side of the frame.

[0017] As a further improvement of the present invention, the fixed base is connected to a plurality of the pressure sensors, and the plurality of the pressure sensors are connected to the frame via a fixed plate.

[0018] As a further improvement of the present invention, the thrust or pulling force generated by the movable foot is transmitted to the pressure sensor through the frame and the fixed plate in sequence.

[0019] As a further improvement of the utility model, the crawler traction devices are provided in a plurality and arranged in a ring array, and are surrounded to form a central hole for the pipe to pass through.

[0020] As a further improvement of the present invention, the crawler traction device includes a driving motor, a reducer, a chain sprocket structure and a crawler connected in sequence, and the crawler is driven by the motor to operate.

[0021] As a further improvement of the present invention, the crawler traction device further includes a lifting and lowering adjustment mechanism, and the lifting and lowering adjustment mechanism can adopt the structure of a lifting cylinder or a lifting machine.

[0022] As a further improvement of the utility model, a distribution box is also provided in the rack.

[0023] Compared with the prior art, the utility model has the following beneficial effects: when the traction machine body is working, the reaction force generated by the pipe is transmitted to the movable base through the traction machine body, and then acts on the pressure sensor. Through the real-time feedback mechanism of the pressure sensor, the operator can instantly understand the force changes during the traction process, so as to accurately adjust the traction force according to actual production needs, which greatly reduces the resource consumption caused by the safety factor set based on experience and improves the overall production efficiency and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front structural schematic diagram of a traction machine for online display of traction force of the utility model;

[0025] Figure 2 The utility model Figure 1 Sectional view along BB;

[0026] Figure 3 The utility model Figure 1 Section view along AA;

[0027] Figure 4 It is an axonometric diagram of a traction machine for displaying traction force online according to the utility model.

[0028] In the figure, 100, traction machine body; 110, movable base; 120, fixed base; 121, pressure sensor; 122, fixed plate; 130, frame; 140, crawler traction device; 141, lifting cylinder; 142, lift; 150, PLC display screen; 160, distribution box; 200, pipe. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figure 1-4 As shown, the utility model provides a traction machine with online display of traction force, comprising:

[0031] The traction machine body 100 is used to provide linear traction power to traction the pipe 200;

[0032] A movable foot 110, the tractor body 100 is placed on the ground through the movable foot 110;

[0033] A fixed base 120, which is located at the side of the movable base 110 and is fixedly arranged;

[0034] The pressure sensor 121 has one end connected to the fixed base 120 and the other end directly or indirectly connected to the movable base 110. When the traction machine is working, the reaction force generated by the pipe 200 is transmitted to the movable base 110 through the traction machine body 100. At this time, since the fixed base 120 is always in a fixed position, the reaction force can act on the pressure sensor 121. This design enables the sensor to capture and feedback the actual traction force value during the traction process in real time.

[0035] The key to this design lies in the introduction of the pressure sensor 121 and its clever arrangement. Through the real-time feedback mechanism of the pressure sensor 121, the operator can instantly understand the force changes during the traction process, thereby accurately adjusting the traction force according to actual production needs, greatly reducing the resource consumption caused by the safety factor set based on experience, and improving the overall production efficiency and economy.

[0036] Preferably, the tractor body 100 comprises:

[0037] The frame 130 is provided with a crawler traction device 140, and the pipe 200 is towed by the crawler traction device 140;

[0038] The PLC display screen 150 is electrically connected to the pressure sensor 121. The data collected by the pressure sensor 121 is fed back to the PLC display screen 150. The operator can monitor the traction process at a glance and adjust the production parameters in time according to the real-time feedback of the traction force to achieve precise control of the traction process.

[0039] Preferably, the movable foot 110 may be disposed at the bottom or side of the frame 130 .

[0040] Preferably, the fixed base 120 is connected to a plurality of pressure sensors 121, and the plurality of pressure sensors 121 are connected to the frame 130 via a fixed plate 122, and the thrust or pulling force generated by the movable base 110 is sequentially transmitted to the pressure sensor 121 via the frame 130 and the fixed plate 122;

[0041] That is, the thrust or pulling force generated by the mobile foot 110 during the traction process first acts on the frame 130, then is transmitted to the fixed plate 122 through the frame 130, and finally the fixed plate 122 evenly distributes the force to each pressure sensor 121. Such a transmission path ensures uniform distribution of force, reduces local stress concentration, protects the pressure sensor 121, and also improves the measurement accuracy.

[0042] Preferably, there are multiple crawler traction devices 140 arranged in a ring array, which are surrounded to form a central hole for the pipe 200 to pass through.

[0043] Specifically, the crawler traction device 140 includes a drive motor, a reducer, a chain sprocket structure and a crawler track connected in sequence. The reducer converts the high-speed rotational motion output by the drive motor into a low-speed and high-torque rotational motion. The sprocket is directly connected to the output shaft of the reducer, and the teeth thereon engage with the crawler track to transmit power to the crawler track and drive it to move. Through the coordinated work of this series of components, efficient power transmission is achieved, thereby realizing the purpose of towing the pipe 200.

[0044] Preferably, the crawler traction device 140 further includes a lifting and adjusting mechanism, which can be a lifting cylinder 141 or a lifting machine 142, wherein:

[0045] The upper crawler is adjusted by a lifting cylinder 141, which uses compressed air as a power source and drives the extension and retraction of the piston rod by controlling the gas in and out of the cylinder, thereby achieving the lifting action;

[0046] The lower crawler is adjusted by the lifter 142, and the rotary motion of the lifter 142 is converted into linear motion through gears, screws or other mechanical transmission methods to complete the lifting operation.

[0047] Preferably, a distribution box 160 is also provided in the rack 130 for power supply.

[0048] The technical means disclosed in the scheme of the utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above is a specific implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

[0049] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A traction machine with online display of traction force, characterized in that: include: A traction machine body, which is used to provide linear traction power to pull the pipe; A movable foot, through which the tractor body is placed on the ground; A fixed base, which is located on the side of the movable foot and is fixedly arranged; a pressure sensor, one end of which is connected to the fixed base and the other end of which is directly or indirectly connected to the movable foot; As the tractor body pulls the pipe straight forward, the pipe provides a reaction force opposite to its moving direction to the tractor body, so as to drive the movable foot to squeeze or pull the pressure sensor, and the pressure sensor feeds back the traction force during the traction process in real time.

2. A traction machine with online display of traction force according to claim 1, characterized in that: The tractor body comprises: A frame, in which a crawler traction device is provided, through which the pipe is towed; A PLC display screen is electrically connected to the pressure sensor, and data collected by the pressure sensor is fed back to the PLC display screen.

3. A traction machine with online display of traction force according to claim 2, characterized in that: The movable foot may be arranged at the bottom or the side of the frame.

4. The traction machine with online display of traction force according to claim 2, characterized in that: The fixed base is connected to a plurality of the pressure sensors, and the plurality of the pressure sensors are connected to the frame via a fixed plate.

5. The traction machine with online display of traction force according to claim 4, characterized in that: The thrust or pulling force generated by the movable foot is sequentially transmitted to the pressure sensor through the frame and the fixed plate.

6. The traction machine with online display of traction force according to claim 2, characterized in that: The crawler traction devices are arranged in a plurality and in a ring array, and are enclosed to form a central hole for the pipe to pass through.

7. The traction machine with online display of traction force according to claim 2, characterized in that: The crawler traction device comprises a driving motor, a speed reducer, a chain sprocket structure and a crawler which are connected in sequence, and the crawler is driven by the motor to operate.

8. The traction machine with online display of traction force according to claim 2, characterized in that: The crawler traction device also includes a lifting and lowering adjustment mechanism, which can adopt the structure of a lifting cylinder or a lifting machine.

9. The traction machine with online display of traction force according to claim 2, characterized in that: A distribution box is also arranged in the rack.

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