CN205852668U - A kind of light instrument for dismantling belt pulleys - Google Patents

Abstract

The utility model relates to a simple tool for disassembling a belt pulley, which comprises a bracket. The bracket is composed of a U-shaped bottom plate, a bottom plate, and three supporting screws with external threads at both ends; the U-shaped bottom plate and the bottom plate are arranged parallel to each other, and the belt The pulley on the wheel shaft is located between the U-shaped bottom plate and the bottom plate. The pulley shaft of the pulley is located in the U mouth of the U-shaped bottom plate. The top of the U-shaped bottom plate and the two U-shaped ends are respectively inserted into a support screw to connect with the bottom plate. Three support screws Adjustable bolts are installed on the exposed ends of the bottom plate, and a round hole is arranged in the middle of the bottom plate, and a screw thrust mechanism for pulling the pulley shaft from the pulley is installed in the round hole. The utility model uses three supporting screws to connect the two bottom plates to form a bracket. The thrust mechanism can choose a jack or a screw mechanism according to the actual situation. The bracket is used to balance the force on the pulley, and then an external force is applied, so that the pulley can be removed conveniently and without damage.

Description

A simple tool for pulley removal

technical field

The utility model relates to a belt pulley maintenance tool, in particular to a simple tool used for belt pulley disassembly.

Background technique

The form of belt transmission has a wide range of applications in the fields of industry and agriculture. Usually, the driving wheel drives the driven wheel to transmit power through the belt. In the actual application process, the pulley needs to be removed due to the failure of the motor or the bearing box that drives the pulley. Generally, the pulley is disassembled by a puller. At the same time, with the continuous improvement of production technology, there are various types of pullers. The traditional claw puller is easy to damage the rim of the pulley, and the price of the new puller is relatively high. Individuals or enterprises who disassemble and disassemble various types of pulleys purchase special pullers with high cost and low use value, which is not conducive to cost control of enterprises and individuals.

Utility model content

In order to solve the problem that the pulley is not suitable for dismantling or there is no puller, the utility model can be easily made according to the actual situation on the spot without causing damage to the pulley rim, and the problem of quickly and intactly removing the pulley is provided. Easy tool for disassembly.

The above object is achieved by the following scheme: a simple tool for pulley removal, including a bracket, the bracket is composed of a U-shaped bottom plate, a bottom plate, and three supporting screws with external threads at both ends; the U-shaped bottom plate and The bottom plates are arranged parallel to each other, and the pulley on the pulley shaft is sandwiched between the U-shaped bottom plate and the bottom plate. The bottom plates are connected, and the two ends of the three supporting screws are exposed to be fixed with adjustable bolts, and the middle part of the bottom plate has a round hole, and a screw thrust mechanism for pulling the pulley shaft from the pulley is installed in the round hole.

Further, the screw thrust mechanism is a screw with a nut, and the threaded end of the screw with a nut penetrates through the round hole in the middle of the bottom plate and passes out from the U-shaped opening of the U-shaped bottom plate. The threaded end of the cap screw is in top contact with the pulley shaft located in the U-shaped opening of the U-shaped bottom plate.

Further, the screw thrust mechanism is a hydraulic or screw jack, the piston of the hydraulic or screw jack penetrates through the round hole in the middle of the bottom plate and passes out from the inverted U-shaped mouth of the U-shaped bottom plate, and the piston end and the belt in the U-shaped mouth of the U-shaped bottom plate The axles touch each other.

The beneficial effects of the utility model are:

1. The utility model includes three support screws, two base plates and a thrust mechanism. The two base plates are connected by three support screws to form a support. The thrust mechanism can be selected according to the actual situation. External force is applied, allowing for easy and non-destructive removal of the pulley.

2. The two bottom plates are fixedly connected by supporting screws and bolts. It is easy to disassemble and the distance can be adjusted by using the screws.

3. The U-shaped bottom plate can be made into different shapes and specifications arbitrarily. According to the actual situation on site, it corresponds to the size of the pulley and the connecting shaft. Even if it is a waste steel plate, only a U-shaped groove can be used as the bottom plate, which is easy to process.

4. The thrust mechanism can be made into a screw screw type with a nut screw. If conditions permit, hydraulic or screw jacks can be used as the thrust mechanism. At the same time, the two thrust mechanisms can be used together.

5. Using the simple belt pulley removal device, in the absence of a special puller, it can not only ensure its production simplicity, popularization and wide range of material replacement, but also ensure that the pulley is balanced in force and will not damage the pulley rim. The bracket adjustment is diversified (bolt adjustment, support screw adjustment, thrust mechanism adjustment), which can be applied to pulley removal requirements of different specifications.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a diagram of the use state of the utility model.

Among the figure: 1, support screw rod 2, bolt 3, U-shaped base plate 4, base plate 5, screw rod 6, thrust mechanism 7, pulley 8, pulley shaft.

detailed description

A simple tool for dismantling a pulley, including a bracket, the bracket is composed of a U-shaped bottom plate 3, a bottom plate 4, and three support screws 1 with external threads at both ends; the U-shaped bottom plate 3 and the bottom plate 4 are arranged parallel to each other, The pulley on the pulley shaft is located between the U-shaped bottom plate 3 and the bottom plate 4. The pulley shaft of the pulley is located in the U mouth of the U-shaped bottom plate 3. The top of the U-shaped bottom plate 3 and the two U-shaped ends penetrate a support screw and the bottom plate 4 respectively. Connected, the two ends of three supporting screw rods 1 are exposed and are equipped with adjustable bolts 2 to fix, and the middle part of the base plate 4 has a circular hole, which is installed in this circular hole and is used to install a screw thrust mechanism for taking off the belt pulley shaft from the belt pulley. The screw thrust mechanism is a screw with nut screw 5, the threaded end of the screw with nut 5 penetrates through the round hole in the middle of the bottom plate 4, and passes through the U-shaped opening of the U-shaped bottom plate 3, and the nut with the screw with nut 5 is located on the bottom plate 4 On the outside, the threaded end of the band nut screw rod 5 touches against the pulley shaft in the U-shaped mouth of the U-shaped base plate 3 . Or described screw thrust mechanism is hydraulic pressure or screw jack, and the piston of hydraulic pressure or screw jack penetrates from the circular hole in the middle part of base plate 4, passes from the inverted U-shaped mouth of U-shaped base plate 3, and the piston end and the U-shaped base plate 3 U-shaped mouth The shafts of the pulleys touch against each other.

When using this device, as shown in Figure 1, the size and length of the bracket can be determined according to the actual situation on site. The length adjustment can be realized by changing the length of the supporting screw 1 or adjusting the bolts. position, to achieve size adjustment; the size of the U-shaped opening of the U-shaped bottom plate 3 can also be opened according to the diameter of the pulley shaft on site, only one steel plate is required, and there is no specification limit; the screw with nut 5 installed in the middle of the bottom plate 4 is used as the preferred thrust mechanism , In the limited space or when there is a jack, the jack is used as the thrust mechanism, and the screw type and the jack type can be used together to increase the adjustment range and be more practical. When removing the pulley, you only need to fix the supporting screw on the U-shaped bottom plate 3 first, which can be fixed with bolts or directly welded, and the U-shaped bottom plate 3 is clamped on the pulley shaft 8, and the bottom plate is close to the pulley 7, and then the bottom plate 4 is installed , the belt pulley 7 is clamped between the U-shaped bottom plate 3 and the bottom plate 4, fixed by the U-shaped bottom plate 3 and the bottom plate 4, and the fixed adjusting bolt 2 is leveled or the steel pipe of equal length is set on the support screw to ensure uniform stress. After the bracket is installed, the screw end of the screw with nut 5 is pushed onto the pulley shaft 8 in the middle of the pulley, and the screw with nut 5 is rotated, the bottom plate is stressed, and the screw with nut 5 pushes the pulley 7 from the pulley shaft 8 up and down , Belt pulley 7 and belt pulley shaft 8 disengage, also can lean against base plate 4 with jack one, and the other end pushes pulley shaft 8 and makes base plate stressed, and two kinds of thrust mechanisms also can cooperate to use. The whole mechanism is assembled, and three different adjustment methods are provided, which can be selectively adjusted according to the distance between the pulley and the pulley shaft 8 at any time to ensure a wider application range. The bracket is used to balance the force on the pulley, and then an external force is applied, so that the pulley can be removed conveniently and without damage. The thrust mechanism can be selected arbitrarily, which has strong adaptability to the application environment and reduces unnecessary waste. The above-mentioned mechanical components are assembled manually, and the bracket can also be made into a welded part under the condition of infrequent use or a single purpose, which meets the requirements of non-destructive disassembly of the pulley. At the same time, the tool can also disassemble the bearing.

Claims (3)

1. the light instrument for dismantling belt pulleys, it is characterised in that: including support, support is by U-shaped base plate (3), base plate And three two ends all form with externally threaded studdle (1) (4)；U-shaped base plate (3) and base plate (4) are disposed in parallel relation to one another, Belt pulley on Pulley shaft is sandwiched between U-shaped base plate (3) and base plate (4), and the Pulley shaft of belt pulley is positioned at U-shaped base plate (3) U mouth in, the top of U-shaped base plate (3) and two U-shaped ends respectively penetrate a studdle and connect with base plate (4), three studdles (1) two ends expose be mounted on adjustable bolt (2) fix, the middle part of base plate (4) has circular hole, in this circular hole install be used for Pulley shaft is pushed up from belt pulley the spiral thrust mechanism taken off.

A kind of light instrument for dismantling belt pulleys, it is characterised in that: spiral thrust mechanism is One band nut screw rod (5), the end of thread of band nut screw rod (5) penetrates the U-shaped mouth from U-shaped base plate (3) from base plate (4) middle part circular hole Pass, the nut of band nut screw rod (5) be positioned at base plate (4) outside, the end of thread of band nut screw rod (5) be positioned at U-shaped base plate (3) Pulley shaft in U-shaped mouth contacts mutually.

A kind of light instrument for dismantling belt pulleys, it is characterised in that: described spiral thrust machine Structure is that the piston of hydraulic pressure or screw jack, hydraulic pressure or screw jack penetrates from U-shaped base plate (3) from base plate (4) middle part circular hole Inverted U-shaped mouth pass, piston end contacts mutually with the Pulley shaft in U-shaped base plate (3) U-shaped mouth.