阅读说明：本技术 一种胀管机接收座高度规格切换机构 (high specification switching mechanism of electric tube expander receiving seat ) 是由 高诗琪 张玉全 鲁鹏 陈义波 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种胀管机接收座高度规格切换机构,包括固定组件和升降组件,其上端面均安装有接收座,且所述固定组件和所述升降组件之间上下滑动连接；在所述固定组件内部安装有驱动装置,所述驱动装置驱动调节所述升降组件上下移动,从而实现对接收座的高度进行补偿,配和对应规格的高度支撑块,对升降部分的中间位置进行二次定位及支撑,使位置更准确的同时,防止升降部分受压弯曲变形,保证热交换器的加工质量。(The invention discloses a height specification switching mechanism for a receiving seat of a pipe expander, which comprises a fixing assembly and a lifting assembly, wherein the upper end surface of the fixing assembly is provided with the receiving seat, and the fixing assembly is connected with the lifting assembly in a vertically sliding manner; the fixed component is internally provided with a driving device which drives and adjusts the lifting component to move up and down, so that the height of the receiving seat is compensated, a height supporting block with a corresponding specification is matched, the middle position of the lifting part is secondarily positioned and supported, the position is more accurate, the lifting part is prevented from being pressed, bent and deformed, and the processing quality of the heat exchanger is ensured.)

1. the utility model provides a pipe expander receiver height specification switching mechanism which characterized in that: the device comprises a fixing component and a lifting component, wherein receiving seats are arranged on the upper end surfaces of the fixing component and the lifting component, and the fixing component and the lifting component are connected in a vertical sliding manner;

And a driving device is arranged in the fixed assembly and drives and adjusts the lifting assembly to move up and down, so that the height of the receiving seat is compensated.

2. the tube expander receptacle height specification switching mechanism of claim 1, wherein the drive means in the stationary assembly is a ball screw drive connection or a rack and pinion linear drive connection.

3. The tube expander receptacle height specification switching mechanism of claim 2, wherein the lift assembly comprises: a lifting part receiving seat mounting plate (2-2) which can be driven by a driving device to lift up and down is arranged on the lifting base (2-1) fixedly connected with the side wall of the fixed component and the lifting base (2-1).

4. The tube expander receptacle height specification switching mechanism of claim 3, wherein the stationary assembly comprises: the lifting device comprises a fixed part frame (1-1), a fixed part receiving seat mounting plate (1-2) mounted at the upper end of the fixed part frame (1-1), and a driving motor (1-6) with a speed reducer mounted in the inner wall of the fixed part frame (1-1), wherein the driving motor (1-6) with the speed reducer drives a ball screw to drive, so that the lifting of the lifting part receiving seat mounting plate (2-2) is realized.

5. The height specification switching mechanism of the pipe expander receiving seat according to claim 4, wherein the side wall of the fixed part frame (1-1) is connected with a driving motor (1-6) with a speed reducer, and a driving wheel is installed at the output end of the speed reducer on the driving motor (1-6) with the speed reducer; a rotary nut (2-4) is installed in the lifting base (2-1), a lifting screw rod (2-3) is connected to the rotary nut (2-4) through threads, and a lifting part receiving base installing plate (2-2) is fixedly connected to the upper end of the lifting screw rod (2-3); the lifting screw rod (2-3) in the rotary nut (2-4) is lifted through chain transmission lap joint between the transmission wheel and the rotary nut (2-4).

6. the height specification switching mechanism of the pipe expander receiving seat according to claim 5, wherein a rotary nut bearing seat (2-6) is installed inside the lifting base (2-1), a tapered roller bearing (2-5) is installed in the rotary nut bearing seat (2-6), a rotary nut (2-4) is inserted into an inner ring of the tapered roller bearing (2-5), a driven sprocket (2-7) is rigidly connected to a lower end face of the rotary nut (2-4), and the driven sprocket (2-7) is in driving connection with a transmission wheel at the output end of the speed reducer through a chain (3).

7. The height specification switching mechanism of the pipe expander receiving seat according to claim 6, wherein the inner bottom of the fixed part frame (1-1) is connected with a tensioning chain wheel seat (1-3), the tensioning chain wheel seat (1-3) is rotatably connected with a tensioning chain wheel (1-4), and the chain (3) is sleeved with the driving wheel, the tensioning chain wheel (1-4) and the driven chain wheel (2-7) at the same time to realize the driving of the three.

8. the height specification switching mechanism of the pipe expander receiving seat according to claim 6 or 7, wherein at least two tapered roller bearings (2-5) are selected, the rotating nut (2-4) is of a sleeve-shaped structure with a T-shaped cross section, and a T-shaped head is clamped at the upper end of each tapered roller bearing (2-5).

9. The height specification switching mechanism of the pipe expander receiving seat according to claim 7, wherein a support column (2-8) is connected to the lower end face of the lifting part receiving seat mounting plate (2-2), a height positioning block (1-9) with a stepped shape change and capable of being adjusted and moved is arranged at the lower end of the support column (2-8), and stepped openings with different heights support the support column (2-8) to complete height locking of the lifting part receiving seat mounting plate (2-2).

10. the height specification switching mechanism of the pipe expander receiving seat according to claim 9, wherein a switching cylinder (1-8) is installed at the bottom in the fixed part frame (1-1), and the head of the switching cylinder (1-8) is connected with a stepped type changing height positioning block (1-9), so that different stepped ports on the changing height positioning block (1-9) are pushed to abut against corresponding height locking of the limiting supporting columns (2-8) through different ejection amplitudes of the switching cylinder (1-8).

Technical Field

The invention belongs to the technical field of electric appliances, and particularly relates to a height specification switching mechanism for a receiving seat of a pipe expander.

Background

The receiving seat of the tube expander is used for fixing the U-shaped part of a copper tube of a heat exchanger when an expansion rod or a station is switched, the shape of the heat exchanger is determined along with the internal layout of an air conditioner, so that the U-shaped parts of a plurality of heat exchangers have height drops, the traditional solution is to make the receiving seats corresponding to different height drops for compensation, but when the specification is changed, the number of the receiving seats needs to be changed, the types of the receiving seats need to be changed simultaneously, the receiving seats are used as accessories, and various receiving seats are more complicated in use, switching, storage and preservation, and time is consumed to influence efficiency.

Disclosure of Invention

The invention aims to provide a height specification switching mechanism for a receiving seat of a pipe expander, which aims to solve the problems of the background art.

in order to achieve the purpose, the specific technical scheme of the height specification switching mechanism of the receiving seat of the pipe expander is as follows:

A height specification switching mechanism for a receiving seat of a pipe expander comprises a fixing assembly and a lifting assembly, wherein the upper end surface of the fixing assembly is provided with the receiving seat, and the fixing assembly is connected with the lifting assembly in a vertically sliding manner; and a driving device is arranged in the fixed assembly and drives and adjusts the lifting assembly to move up and down, so that the height of the receiving seat is compensated.

Furthermore, the driving device in the fixing assembly is in transmission connection with a ball screw or in linear transmission connection with a gear and a rack.

further, the lifting assembly comprises: the lifting base fixedly connected with the side wall of the fixed component and the lifting base are provided with a lifting part receiving seat mounting plate which can be driven by a driving device to lift up and down.

Further, the fixing assembly includes: the inner walls of the fixed part frame, the fixed part receiving seat mounting plate and the fixed part frame which are arranged at the upper end of the fixed part frame are internally provided with a driving motor with a speed reducer, and the driving motor with the speed reducer drives a ball screw to transmit, so that the lifting of the lifting part receiving seat mounting plate is realized.

Furthermore, the side wall of the fixed part frame is connected with a driving motor with a speed reducer, and a driving wheel is mounted at the output end of the speed reducer on the driving motor with the speed reducer; a rotary nut is installed in the lifting base, a lifting screw rod is connected to the rotary nut through threads, and a lifting part receiving base installing plate is fixedly connected to the upper end of the lifting screw rod; the lifting screw rod in the rotary nut is lifted through chain transmission lap joint between the transmission wheel and the rotary nut.

Furthermore, a rotating nut bearing seat is installed inside the lifting base, a tapered roller bearing is installed in the rotating nut bearing seat, a rotating nut is inserted in an inner ring of the tapered roller bearing, a driven chain wheel is rigidly connected to the lower end face of the rotating nut, and the driven chain wheel is in driving connection with a driving wheel at the output end of the speed reducer through a chain.

Furthermore, the inner bottom of the fixed part frame is connected with a tensioning chain wheel seat, the tensioning chain wheel seat is rotatably connected with a tensioning chain wheel, and the chain is simultaneously sleeved with a driving wheel, the tensioning chain wheel and a driven chain wheel to realize the driving of the three.

Furthermore, tapered roller bearing chooses for use two at least, swivel nut chooses for use the cross section for the sleeve column structure of T type, and T type head card is in tapered roller bearing upper end.

Furthermore, the lower terminal surface of lift part receiving seat mounting panel is connected with the support column, and the lower extreme of support column is equipped with the cascaded type of changing height locating piece of area of adjustable removal, and the ladder mouth top of co-altitude not holds the support column and accomplishes the locking of height of lift part receiving seat mounting panel.

Further, the switching cylinder is installed to the bottom in the fixed part frame, and the head that switches the cylinder is connected with and takes cascaded retooling height positioning piece, through the difference of switching the ejecting range of cylinder, and then promotes the corresponding high locking of the spacing support column of different notch conflicts on the retooling height positioning piece.

Compared with the prior art, the invention has the following beneficial effects:

1. The servo motor is adopted to drive the nut to rotate and drive the screw rod to lift, so that the rear row receiving seats are driven to lift, the rear row receiving seats can be controlled to lift on the premise of not changing the occupied space, the types of the receiving seats are reduced, and the time for replacing the specification of the heat exchanger is shortened by 50%.

2. The height supporting block matched with the corresponding specification is used for carrying out secondary positioning and supporting on the middle position of the lifting part, so that the position is more accurate, the lifting part is prevented from being pressed, bent and deformed, and the processing quality of the heat exchanger is ensured.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of a second embodiment of the present invention;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 7 is a diagram illustrating the switching of the corresponding second step when the drop height requirement is height 2;

FIG. 8 is a switching diagram of the corresponding third step when the drop height requirement is height 3;

Fig. 9 is a side view of fig. 2.

the reference numbers in the figures illustrate: the device comprises a fixed part frame 1-1, a fixed part receiving seat mounting plate 1-2, a tensioning chain wheel seat 1-3, a tensioning chain wheel 1-4, a motor seat 1-5, a driving motor 1-6 with a speed reducer, a driving chain wheel 1-7, a switching cylinder 1-8, a model changing height positioning block 1-9 and a sliding base plate 1-10; the lifting device comprises a lifting base 2-1, a lifting part receiving seat mounting plate 2-2, a lifting screw rod 2-3, a rotating nut 2-4, a tapered roller bearing 2-5, a rotating nut bearing seat 2-6, a driven chain wheel 2-7 and a support column 2-8; and a chain 3.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-9, which illustrate the invention.

in order to achieve the purpose, the specific technical scheme of the height specification switching mechanism of the receiving seat of the pipe expander is as follows:

As shown in fig. 1 and 2, the height specification switching mechanism for the receiving seat of the pipe expander, which is designed by the invention, comprises a fixing assembly and a lifting assembly, wherein the receiving seat is arranged on the upper end surface of the fixing assembly, and the fixing assembly is connected with the lifting assembly in a vertically sliding manner; the driving device is arranged in the fixed assembly and drives the adjusting lifting assembly to move up and down, so that the height of the receiving seat is compensated, and the driving device in the fixed assembly can be connected in a ball screw transmission mode or in a gear-rack linear transmission mode.

The invention is characterized in that:

1. The servo motor is adopted to drive the nut to rotate the rear row receiving seat driven by the screw rod to lift, so that the rear row receiving seat can be controlled to lift on the premise of not changing the occupied space, the types of the receiving seats are reduced, and the time for replacing the specification of the heat exchanger is shortened by 50%.

2. The height supporting block matched with the corresponding specification is used for carrying out secondary positioning and supporting on the middle position of the lifting part, so that the position is more accurate, the lifting part is prevented from being pressed, bent and deformed, and the processing quality of the heat exchanger is ensured.

Wherein, lifting unit mainly includes: the lifting base 2-1 and the lifting base 2-1 which are fixedly connected with the side wall of the fixed component are provided with a lifting part receiving seat mounting plate 2-2 which can be driven by a driving device to lift up and down.

Wherein, fixed subassembly mainly includes: the lifting device comprises a fixed part frame 1-1, a fixed part receiving seat mounting plate 1-2 mounted at the upper end of the fixed part frame 1-1, a driving motor 1-6 with a speed reducer is mounted in the inner wall of the fixed part frame 1-1, the driving motor 1-6 with the speed reducer drives a ball screw to transmit, a tapered roller bearing 2-5 is mounted in the lifting base 2-1, a rotating nut 2-4 is inserted in the inner ring of the tapered roller bearing 2-5, a driven sprocket 2-7 is rigidly connected to the lower end face of the rotating nut 2-4, and the driven sprocket 2-7 is in driving connection with a driving wheel at the output end of the speed reducer through a chain 3. Referring to fig. 5, at least two tapered roller bearings 2-5 are selected, the rotating nut 2-4 is a sleeve-shaped structure with a T-shaped cross section, and the T-shaped head is clamped at the upper end of the tapered roller bearings 2-5. Thereby realizing the lifting of the mounting plate 2-2 of the lifting part receiving seat. The inner bottom of the fixed part frame 1-1 is connected with a tensioning chain wheel seat 1-3, the tensioning chain wheel seat 1-3 is rotationally connected with a tensioning chain wheel 1-4, and the chain 3 is simultaneously sleeved with a driving wheel, the tensioning chain wheel 1-4 and a driven chain wheel 2-7 to realize the driving of the three.

As shown in the figure 1-2, the receiving seat assembly of the invention is composed of a fixed part frame 1-1 which is a mounting base of a non-lifting receiving seat assembly and is of a frame structure, other components required by the lifting function are arranged in the fixed part frame, the non-lifting receiving seat is mounted on a fixed part receiving seat mounting plate 1-2, a chain wheel of a tensioning chain is mounted on a tensioning chain wheel seat 1-3, the tensioning chain wheel 1-4 is used for tensioning a transmission chain 3, a driving device for driving the lifting part of the receiving seat is mounted on a motor seat 1-5, the driving device is a driving motor 1-6 with a speed reducer, the speed reducer can be selected from a gear speed reducer, the driving motor 1-6 with the speed reducer provides driving force for lifting of the receiving seat, a driving chain wheel 1-7 drives the chain 3 to transmit, and a switching cylinder 1-, the height positioning and supporting are carried out, the height positioning blocks 1-9 are changed in shape, the stress support with the designated height is provided, the surfaces of the sliding base plates 1-10 are smooth, and the translation resistance of the height positioning blocks is reduced. Referring to fig. 6-8, the lower end surface of the mounting plate 2-2 of the receiving seat of the lifting part is connected with a supporting column 2-8, the lower end of the supporting column 2-8 is provided with a height positioning block 1-9 with a step type changing function which can be adjusted and moved, the bottom of the frame 1-1 of the fixing part is provided with a switching cylinder 1-8, the head of the switching cylinder 1-8 is connected with the height positioning block 1-9 with the step type changing function, and different step openings on the height positioning block 1-9 are pushed to abut against corresponding height locking of the limiting supporting column 2-8 through different ejection amplitudes of the switching cylinder 1-8.

The lifting base 2-1 is used for installing a bearing seat of the lifting part, the lifting part receiving seat installing plate 2-2 is used for installing a row of lifting receiving seats, the lifting screw rod 2-3 is driven by the action of the rotating nut 2-4 to ascend and descend, the rotating nut 2-4 rotates in situ under the restraint of the tapered roller bearing 2-5, and the lifting screw rod 2-3 moves up and down.

The tapered roller bearing 2-5 restrains the axial and radial displacement of the rotating nut 2-4, the rotating nut bearing seat 2-6 provides fixation for the tapered roller bearing 2-5, the driven chain wheel 2-7 is installed and fixed on the rotating nut 2-4 and is driven by the chain 3 to rotate with the rotating nut 2-4, the support column 2-8 moves up and down along with the lifting part of the receiving seat and is supported on the height positioning block at a designated height, and the support column is positioned at the assembly position of the lifting part of the receiving seat to transmit the downward pressure applied to the work to the base, so that the plate of the lifting part of the receiving seat cannot be bent and deformed, and the chain 3 is used for transmitting the driving force.

As shown in FIG. 6, when there is no drop, the fixed part receiving seat mounting plate 1-2 and the lifting part receiving seat mounting plate 2-2 are at the same height.

As shown in figure 1, a support column 2-8 is in contact with the lowest layer of a model changing height positioning block 1-9 to transmit force to a sliding base plate 1-10 and a lifting base 2-1, when the drop height requirement is 1, a driving motor 1-6 with a speed reducer is used as output driving force and is transmitted to a driven chain wheel 2-7 through a driving chain wheel 1-7, a chain 3 and a tension chain wheel 1-4 to drive a rotating nut 2-4 to rotate, the rotating nut 2-4 rotates in situ under the restraint of a conical roller bearing 2-5 and a rotating nut bearing seat 2-6, and a lifting screw rod 2-3 drives a lifting part receiving seat mounting plate 2-2 to move upwards.

Referring to fig. 7, when the height position 1 is reached, the switching cylinder 1-8 pushes the model changing height positioning block 1-9 to move forward, so that the supporting column 2-8 is in contact with the first step of the model changing height positioning block 1-9, and the supporting effect is ensured. Similarly, as shown in fig. 8, when the drop height requirements are height 2 and height 3, the corresponding second-stage step and third-stage step are switched, so that the height positioning and the structural overall strength under the stress state are ensured.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.