CN210505375U

CN210505375U - Height-adjustable parallel motion frame

Info

Publication number: CN210505375U
Application number: CN202020161578.6U
Authority: CN
Inventors: 徐晓辉; 廖多玉
Original assignee: Xinjiang Earthquake Isolation Engineering Technology Research Institute (co Ltd)
Current assignee: Xinjiang Earthquake Isolation Engineering Technology Research Institute (co Ltd)
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-05-12
Anticipated expiration: 2030-02-11

Abstract

The utility model discloses a height-adjustable parallel motion frame, which comprises an equipment shell, wherein a motor is arranged on the right side inside the equipment shell, a baffle is vertically arranged inside the equipment shell, the left side wall of the equipment shell is rotatably connected with one end of a rotating shaft, the rotating shaft runs through the baffle and is rotatably connected with the baffle, the other end of a coupler is connected with an output shaft of the motor, the upper and lower side walls of the equipment shell are rotatably connected with two lead screws, the lower parts of the two lead screws are respectively provided with a driven bevel gear, the driven bevel gear is meshed with a driving bevel gear, an opening and closing block can be completely closed during testing, and the reduction of the accuracy of measured data caused by the vibration of a lifting platform is avoided; when the lifting platform is adjusted up and down, the opening and closing block can be properly opened, the adjustment is convenient, the structure of the whole device is simple, the labor intensity of a user can be obviously reduced, the labor time is reduced, and the stepless adjustment of the height of the lifting platform is realized.

Description

Height-adjustable parallel motion frame

Technical Field

The utility model relates to a testing machine corollary equipment technical field, concrete field is a height-adjustable parallel motion frame.

Background

At present, the cushion adjustment is adopted in the adjustment of most of the parallel motion frame devices of the testing machine in China, the artificial influence is great, and the following defects exist in the adjustment mode: the manual fixing difficulty is high, the working efficiency is low, the working time is prolonged, and the time cost is increased; the precision is limited by adopting a manual adjustment mode, stepless adjustment is not easy to realize, and the accuracy of experimental data is influenced; the disassembly is troublesome, and the labor intensity of an operator is increased.

Therefore, the utility model provides a novel equipment solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a height-adjustable parallel motion frame to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a height-adjustable parallel motion frame comprises an equipment shell, wherein a motor is arranged on the right side inside the equipment shell, a partition plate is vertically arranged inside the equipment shell, the left side wall of the equipment shell is rotatably connected with one end of a rotating shaft, the rotating shaft penetrates through the partition plate and is rotatably connected with the partition plate, the other end of the rotating shaft is provided with one end of a coupler, the other end of the coupler is connected with an output shaft of the motor, the rotating shaft is provided with two driving bevel gears, the upper side wall and the lower side wall of the equipment shell are rotatably connected with two lead screws in a penetrating manner, the lower parts of the two lead screws are respectively provided with a driven bevel gear, the driven bevel gears are meshed with the driving bevel gears, the upper side wall of the equipment shell is provided with two stroke rods, a lifting platform is arranged above the equipment shell, and, the stroke pole runs through the engaging lug and with engaging lug sliding connection, the front surface of elevating platform is equipped with two pieces that open and shut, the lead screw runs through the piece that opens and shuts, the upper portion of lead screw is equipped with the external screw thread, the piece that opens and shuts is run through by the lead screw department and is equipped with the internal thread, the external screw thread with the internal thread cooperatees, the piece that opens and shuts is including opening and shutting piece A and opening and shutting piece B, the right side wall rear portion of opening and shutting piece A is equipped with the stroke round pin, the stroke round pin runs through open and shut piece B and with opening and shutting piece B sliding connection, the front portion of opening and shutting piece A rotates and is connected with the bolt of screwing, the bolt of screwing runs through open and shut piece B and with be screw-thread fit between opening and shutting piece B, the outside of the bolt of screwing just the right side cover of.

Preferably, the surface of the external thread, which is in contact with the internal thread, is provided with lubricating grease.

Preferably, the rotating connection part of the screw rod and the equipment shell is provided with a bearing, and the rotating connection part of the rotating shaft and the equipment shell and the partition plate is provided with a bearing.

Preferably, the stroke rod is in clearance fit with the connecting lug, and the clearance is measured by 0.5 mm.

Preferably, the outer surface of the trip rod is a smooth surface.

Preferably, the motor is connected to a right side wall of the device case by a bolt.

Preferably, the material of the lifting platform is aluminum alloy.

Compared with the prior art, the beneficial effects of the utility model are that: a parallel motion frame with adjustable height is characterized in that a rotating shaft rotates under the driving of a motor, the rotating shaft drives a screw rod to rotate under the action of a bevel gear, the parallel motion of a lifting table is realized by the rotation of the screw rod, the influence of manual adjustment is reduced, the accuracy of test data is ensured, the reliability of an equipment structure is improved, and the safety of the equipment structure is improved; the opening and closing block can be completely closed during testing, so that the reduction of the accuracy of measured data caused by the vibration of the lifting platform is avoided; the spring is arranged, so that an operator has better sensing capability on the opening degree of the opening and closing block, the opening and closing block can be properly opened when the lifting platform is adjusted up and down, the adjustment is convenient, the whole device is simple in structure and low in cost, the labor intensity of the user can be obviously reduced, the labor time is reduced, and the stepless adjustment of the height of the lifting platform is realized.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a left side view structure diagram of the present invention;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is an enlarged schematic view of the present invention at A in FIG. 1;

fig. 5 is an enlarged schematic view of the point B in fig. 3 according to the present invention.

In the figure: 1-equipment shell, 2-motor, 3-clapboard, 4-rotating shaft, 5-driving bevel gear, 6-lead screw, 7-driven bevel gear, 8-stroke rod, 9-lifting platform, 10-connecting lug, 11-opening and closing block, 1101-opening and closing block A, 1102-opening and closing block B, 1103-stroke pin, 1104-screwing bolt and 1105-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a height-adjustable parallel motion frame comprises an equipment shell 1, the equipment shell 1 can be formed by connecting two shells through bolts, the right side in the equipment shell 1 is provided with a motor 2, the motor 2 adopts a small servo motor and can control forward rotation or reverse rotation, a partition plate 3 is vertically arranged in the equipment shell 1, the partition plate 3 can be fixedly connected with the inside of the equipment shell 1, the left side wall of the equipment shell 1 is rotatably connected with one end of a rotating shaft 4, the rotating shaft 4 can rotate freely and can not move axially, the rotating shaft 4 penetrates through the partition plate 3 and is rotatably connected with the partition plate 3, the partition plate 3 is used for supporting the rotating shaft 4 and improving the stability of the rotating shaft 4 during operation, the other end of the rotating shaft 4 is provided with one end of a coupler, the other end of the coupler is connected with an output shaft of the motor 2, two driving bevel gears 5 are, the upper side wall and the lower side wall of the equipment shell 1 are in a penetrating and rotating connection with two lead screws 6, the lead screws 6 can rotate and cannot move axially, the lower parts of the two lead screws 6 are respectively provided with a driven bevel gear 7, the driven bevel gear 7 and the lead screws 6 can be in an integral forming, the driven bevel gear 7 is meshed with the drive bevel gear 5, the upper side wall of the equipment shell 1 is provided with two stroke rods 8, the stroke rods 8 are fixedly connected with the equipment shell 1 and can be welded, a lifting platform 9 is arranged above the equipment shell 1, the rear surface of the lifting platform 9 is provided with two connecting lugs 10 which are fixedly connected, the stroke rods 8 penetrate through the connecting lugs 10 and are in sliding connection with the connecting lugs 10, the material of the connecting lugs 10 has good wear resistance, the front surface of the lifting platform 9 is provided with two opening and closing blocks 11, the lead screws 6 penetrate through the opening and closing blocks 11, and the upper parts of the lead screws 6 are, the opening and closing block 11 is provided with internal threads at the penetrating position of the screw rod 6, the external threads are matched with the internal threads, the opening and closing block 11 comprises an opening and closing block A1101 and an opening and closing block B1102, the opening and closing block A1101 is fixedly connected with the lifting platform 9, can be welded, the rear part of the right side wall of the opening and closing block A1101 is provided with a stroke pin 1103 which is fixedly connected with the opening and closing block A1101, the welding can be carried out, the stroke pin 1103 penetrates through the opening and closing block B1102 and is in sliding connection with the opening and closing block B1102, the front part of the opening and closing block A1101 is rotatably connected with a screwing bolt 1104, the screwing bolt 1104 can rotate but cannot move axially, the screwing bolt 1104 penetrates through the opening and closing block B1102 and is in threaded fit with the opening and closing block B1102, a spring 1105 is sleeved outside the screwing bolt 1104 and on the right side of the opening and closing block B1102, and the spring 1105 can provide certain damping for the rotation of the screwing bolt 1104, the operator can adjust the opening degree of the opening and closing block 11 with good hand feeling, and the operator can sense the opening degree of the opening and closing block 11 better.

Specifically, the surface of the external thread in contact with the internal thread is provided with lubricating grease, and the lubricating grease is added to prolong the service life of the screw rod 6 and the opening and closing block 11 and reduce the maintenance cost.

Particularly, the rotating connection part of the lead screw 6 and the equipment shell 1 is provided with a bearing, the rotating connection part of the rotating shaft 4 and the equipment shell 1 and the partition plate 3 is provided with a bearing, the friction loss of a contact surface is reduced, and the service life of the whole equipment is prolonged.

Specifically, the stroke rod 8 and the connecting lug 10 are in clearance fit, the clearance is measured by 0.5mm, and the stroke rod 8 and the connecting lug 10 shake due to overlarge clearance, so that the stability of the lifting platform 9 is affected; too small a gap may cause inconvenience in horizontal adjustment of the lifting table 9, and affect normal use of the apparatus.

Specifically, the outer surface of the stroke rod 8 is a smooth surface, so that the friction loss between the stroke rod 8 and the connecting lug is reduced.

Specifically, the motor 2 is connected with the right side wall of the equipment casing 1 through bolts, and the bolt connection is adopted, so that the cost is low, and the work is reliable.

Specifically, the material of elevating platform 9 chooses for use the aluminum alloy, and the aluminum alloy has the light, characteristics that intensity is big of quality, is fit for this selection again.

The working principle is as follows: the utility model discloses provide power by motor 2, motor 2 drives pivot 4 rotatory, and the drive bevel gear 5 on the pivot 4 meshes with driven bevel gear 7 on the lead screw 6 mutually, has realized the change of torque direction, and lead screw 6 can rotate, because be screw-thread fit between lead screw 6 and the opening and shutting piece 11 on elevating platform 9, the existence of screw thread lift angle makes the rotation of lead screw 6 convert into the up-and-down motion of opening and shutting piece 11, and opening and shutting piece 11 drives elevating platform 9 along 8 up-and-down motions of stroke pole; when the horizontal height of the lifting platform 9 is adjusted, the screwing bolt 1104 is appropriately unscrewed, so that the screw rod 6 can rotate in the opening and closing block 11, and the horizontal height of the lifting platform 9 can be adjusted; when carrying out the experiment, the bolt 1104 of screwing, the clearance between the piece of opening and shutting 11 and lead screw 6 reduces greatly, and lead screw 6 is unable rotatory, prevents that the lead screw rotation that equipment vibrations lead to when carrying out the experiment from making the level of elevating platform 9 change, influences the accuracy and the reliability of experimental data.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A height adjustable parallel movement frame comprising a device housing (1), characterized in that: the device is characterized in that a motor (2) is arranged on the right side inside the device shell (1), a partition plate (3) is vertically arranged inside the device shell (1), the left side wall of the device shell (1) is rotatably connected with one end of a rotating shaft (4), the rotating shaft (4) penetrates through the partition plate (3) and is rotatably connected with the partition plate (3), the other end of the rotating shaft (4) is provided with one end of a coupler, the other end of the coupler is connected with an output shaft of the motor (2), two driving bevel gears (5) are arranged on the rotating shaft (4), the upper side wall and the lower side wall of the device shell (1) are rotatably connected with two lead screws (6) in a penetrating manner, the lower parts of the two lead screws (6) are respectively provided with a driven bevel gear (7), the driven bevel gears (7) are meshed with the driving bevel gears (5), and the upper side wall of the device, a lifting platform (9) is arranged above the equipment shell (1), two connecting lugs (10) are arranged on the rear surface of the lifting platform (9), a travel rod (8) penetrates through the connecting lugs (10) and is in sliding connection with the connecting lugs (10), two opening and closing blocks (11) are arranged on the front surface of the lifting platform (9), a lead screw (6) penetrates through the opening and closing blocks (11), external threads are arranged on the upper portion of the lead screw (6), internal threads are arranged at the penetrating positions of the opening and closing blocks (11) through the lead screw (6), the external threads are matched with the internal threads, each opening and closing block (11) comprises an opening and closing block A (1101) and an opening and closing block B (1102), a travel pin (1103) is arranged on the rear portion of the right side wall of the opening and closing block A (1101), and the travel pin (1103) penetrates through the opening and closing block B (1102) and is in sliding connection with the opening and closing block B (1102), the front part of the opening and closing block A (1101) is rotatably connected with a screwing bolt (1104), the screwing bolt (1104) penetrates through the opening and closing block B (1102) and is in threaded fit with the opening and closing block B (1102), and a spring (1105) is sleeved outside the screwing bolt (1104) and on the right side of the opening and closing block B (1102).

2. A height adjustable parallel kinematic frame according to claim 1, in which: and lubricating grease is arranged on the surface of the external thread, which is in contact with the internal thread.

3. A height adjustable parallel kinematic frame according to claim 1, in which: the lead screw (6) with the rotation junction of equipment casing (1) all is equipped with the bearing, pivot (4) with the rotation junction of equipment casing (1) with baffle (3) all is equipped with the bearing.

4. A height adjustable parallel kinematic frame according to claim 1, in which: the stroke rod (8) and the connecting lug (10) are in clearance fit, and the clearance is measured to be 0.5 mm.

5. A height adjustable parallel kinematic frame according to claim 1, in which: the outer surface of the stroke rod (8) is a smooth surface.

6. A height adjustable parallel kinematic frame according to claim 1, in which: the motor (2) is connected with the right side wall of the equipment shell (1) through a bolt.

7. A height adjustable parallel kinematic frame according to claim 1, in which: the lifting platform (9) is made of aluminum alloy.