CN207175326U - A kind of screw jack - Google Patents
A kind of screw jack Download PDFInfo
- Publication number
- CN207175326U CN207175326U CN201720862432.2U CN201720862432U CN207175326U CN 207175326 U CN207175326 U CN 207175326U CN 201720862432 U CN201720862432 U CN 201720862432U CN 207175326 U CN207175326 U CN 207175326U
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- cylinder
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- adjusting screw
- boosting
- screw rod
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Abstract
The utility model discloses a kind of screw jack, free bearing including belt feeder middle frame channel-section steel can be caught in, and cylinder, orthodontic internal thread and anti-tooth internal thread are respectively arranged with the both ends of cylinder, it is threaded with an adjusting screw rod respectively at the both ends of cylinder, the outer end of wherein one adjusting screw rod is hinged with free bearing by bearing pin, the boosting-rod to rotating cylinder is additionally provided with cylinder, when boosting-rod rotating cylinder forward or backwards, two adjusting screw rods protruding cylinder or inside retraction cylinder simultaneously simultaneously can be made.The utility model has the advantages that：（1）Possess enough lifting altitudes, eliminate and need to use cushion block originally to meet the link of lifting altitude；（2）When changing forward-tilt idler, by the way that free bearing is caught in into middle frame channel-section steel, it is ensured that the stationarity of 0~90 ° of scope skewed horizontal load, jack is not toppled over again, improve stability in use and security；（4）Easy to carry, fault rate is low and maintenance is very convenient.
Description
Technical field
It the utility model is related to belt feeder maintenance of equipment technical field, and in particular to one kind is used for support roller for belt machine and changes work
The screw jack of industry.
Background technology
Belt feeder is conventional conveying equipment, and its structure mainly includes：Frame, the left and right sides for being arranged at frame are set respectively
Middle frame channel-section steel is equipped with, all middle frame channel-section steels are collectively forming mounting bracket, are propped up successively from front to back at the top of mounting bracket
Some flute profile roller groups have been held, flute profile roller group is made up of flat idler and the forward-tilt idler at left and right sides of flat idler,
Conveyer belt is arranged with all flute profile roller groups, conveyer belt is rotated, installed from front to back by the motor driving being installed in frame
The bottom of support is supported with some parallel lower carrier rollers to transportation section on the downside of support belt successively from front to back.In belt feeder
, it is necessary to be propped up conveyer belt using jack in carrier roller replacing operation process, it is ensured that possess enough carrier roller replacing working spaces.
The jack used at present is mostly hydraulic jack, and this jack has the following disadvantages：（1）Jack lifting altitude is not
Foot, needs to use pad to make up lifting altitude during use；（2）During the forward-tilt idler of flute profile roller group is changed, tiltedly
Easily topple over to the jack that support conveyer belt, so as to damage accident, stability in use is poor with security；（3）
Inconvenient to carry and fault rate is high, inconvenient maintenance.
Utility model content
The purpose of this utility model be to provide a kind of stability in use with it is safe, lifting altitude is sufficient, easy to carry, former
The low and easy to maintenance screw jack of barrier rate.
To achieve the above object, the utility model employs following technical scheme：A kind of described screw jack, bag
The free bearing of belt feeder middle frame channel-section steel can be caught in by including, and cylinder, be respectively arranged with the both ends of cylinder orthodontic internal thread with it is anti-
Tooth internal thread, an adjusting screw rod is threaded with respectively at the both ends of cylinder, wherein the outer end of adjusting screw rod and free bearing
It is hinged by bearing pin, the boosting-rod to rotating cylinder is additionally provided with cylinder, when boosting-rod rotary cylinder forward or backwards
During body, two adjusting screw rods protruding cylinder or inside retraction cylinder simultaneously simultaneously can be made.
Further, foregoing a kind of screw jack, wherein：Be respectively arranged with the both ends of cylinder orthodontic nut with
Anti- tooth nut, cylinder form the orthodontic internal thread coordinated with two adjusting screw rod phase screw threads by orthodontic nut with anti-tooth nut
With anti-tooth internal thread.
Further, foregoing a kind of screw jack, wherein：Orthodontic nut is weldingly fixed on cylinder with anti-tooth nut
On body.
Further, foregoing a kind of screw jack, wherein：One is respectively arranged with the inner of every adjusting screw rod
Individual limited block, the external diameter of the limited block on every adjusting screw rod are less than the internal diameter of cylinder and more than the internal diameter of corresponding nut.
Further, foregoing a kind of screw jack, wherein：The connected mode of boosting-rod and cylinder is：In cylinder
Centre position be provided with radially penetrate cylinder mounting hole, boosting-rod activity is located in mounting hole, at the both ends of boosting-rod
It is separately installed with the block for preventing boosting-rod from skidding off mounting hole.
Further, foregoing a kind of screw jack, wherein：In the root adjusting screw rod not being hinged with free bearing
Outer end is provided with to prevent the root adjusting screw rod excessively inside positive stop of retraction cylinder.
The implementation of Pass through above-mentioned technical proposal, the beneficial effects of the utility model are：（1）Pass through cylinder, the first regulation spiral shell
The cooperation of bar and the second adjusting screw rod, jack is possessed enough lifting altitudes, eliminate and need to use cushion block originally to expire
The link of sufficient lifting altitude, using more convenient；（2）When changing forward-tilt idler, by the way that free bearing is caught in into middle frame channel-section steel, it is ensured that
The stationarity of 0~90 ° of scope skewed horizontal load, makes jack not topple over again during forward-tilt idler is changed, significantly
Improve stability in use and security；（4）Easy to carry, fault rate is low and maintenance is very convenient.
Brief description of the drawings
Fig. 1 is a kind of structural representation of screw jack described in the utility model.
Fig. 2 is in the view of raising state for a kind of screw jack shown in Fig. 1.
Fig. 3 is use when a kind of screw jack described in the utility model is used to change belt feeder parallel lower carrier roller
View.
Fig. 4 is to make when a kind of screw jack described in the utility model is used to change belt feeder groove profile forward-tilt idler
Use view.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, described a kind of screw jack, including the hinge of belt feeder middle frame channel-section steel 1 can be caught in
Seat 2, and cylinder 3, orthodontic internal thread and anti-tooth internal thread are respectively arranged with the both ends of cylinder 3, are distinguished at the both ends of cylinder 3
The first adjusting screw rod 4 and the second adjusting screw rod 5 are threaded with, outer end and the free bearing 2 of the second adjusting screw rod 5 pass through the phase of bearing pin 6
It is be hinged, the boosting-rod 7 to rotating cylinder 3 is additionally provided with cylinder 3, when 7 rotating cylinder 3 forward or backwards of boosting-rod,
The first adjusting screw rod 4 and the second adjusting screw rod 5 protruding cylinder 3 or simultaneously inside retraction cylinder 3 simultaneously can be made；In this implementation
In example, orthodontic nut 8 and anti-tooth nut 9 are respectively arranged with the both ends of cylinder 3, cylinder 3 passes through orthodontic nut 8 and anti-tooth nut
9 and formed with the orthodontic internal thread that two adjusting screw rod phase screw threads coordinate and anti-tooth internal thread, so when orthodontic internal thread with instead
After abrasion occurs for tooth internal thread, corresponding orthodontic nut or anti-tooth nut need to be only changed, it is not necessary to change whole cylinder, install
It is easy to maintenance；In the present embodiment, orthodontic nut 8 is weldingly fixed on cylinder 3 with anti-tooth nut 9, and above-mentioned fixed form can
Effectively to prevent orthodontic nut 8 from deviating from cylinder 3 with anti-tooth nut 9；In the present embodiment, in the inner of the first adjusting screw rod 4 point
It is not provided with first limited block 10, the external diameter of the first limited block 10 on the first adjusting screw rod 4 is less than the internal diameter of cylinder 3 simultaneously
More than the internal diameter of corresponding nut, second limited block 11, the second regulation spiral shell are respectively arranged with the inner of the second adjusting screw rod 5
The external diameter of the second limited block 11 on bar 5 is less than the internal diameter of cylinder 3 and more than the internal diameter of corresponding nut, passes through the first limited block 10
It adjusting screw rod can effectively depart from the second limited block 11 from cylinder, improve job stability；In the present embodiment, reinforce
The connected mode of bar 7 and cylinder 3 is：The mounting hole for radially penetrating cylinder is provided with 3 centre positions of cylinder, boosting-rod 7 is lived
It is dynamic to be located in mounting hole, the first block for preventing boosting-rod 7 from skidding off mounting hole is separately installed with the both ends of boosting-rod 7
120 and second block 121；In the present embodiment, it is provided with to prevent the first adjusting screw rod in the outer end of the first adjusting screw rod 4
The positive stop 13 of 4 excessively inside retraction cylinders 3；
Operation principle of the present utility model is as follows：
As shown in figure 3, when changing the parallel lower carrier roller 14 of belt feeder, free bearing 2 is positioned on ground, then by adding
The rotating cylinder 3 of power bar 7, make the first adjusting screw rod 4 and the second adjusting screw rod 5 protruding cylinder 3 simultaneously, until the first regulation spiral shell
The conveyer belt 15 that bar 4 will bear against the top of parallel lower carrier roller 14 is jacked up to after possessing roller support replacement operation space upwards, is stopped operating
Cylinder 3, the replacement operation of parallel lower carrier roller 14 can be now carried out, treat that parallel lower carrier roller 14 is changed and finish, then make boosting-rod 7 anti-
To rotating cylinder 3, make the first adjusting screw rod 4 and the second adjusting screw rod 5 inside retraction cylinder 3 simultaneously, until conveyer belt 15 is again
After being pressed in the new top of parallel lower carrier roller 14, jack is taken out；
As shown in figure 4, when changing the forward-tilt idler 16 of belt feeder, free bearing 2 is stuck in the middle frame channel-section steel 1 of belt feeder
In, cylinder 3 is turned to oblique forward-tilt idler 16 around bearing pin 6, then by the rotating cylinder 3 of boosting-rod 7, make the first regulation
The adjusting screw rod 5 of screw rod 4 and second while protruding cylinder 3, until the first adjusting screw rod 4 will bear against the top of forward-tilt idler 16
Conveyer belt 15 is jacked up to after possessing roller support replacement operation space upwards, and stop operating cylinder 3, can now carry out forward-tilt idler 16
Replacement operation, treat that forward-tilt idler 16 is changed and finish, then boosting-rod 7 is rotated backward cylinder 3, make the first adjusting screw rod 4 and the
Two adjusting screw rods 5 while inwardly retraction cylinder 3, until after conveyer belt 15 is pressed in the new top of forward-tilt idler 16 again, take out thousand
Jin top.
The utility model has the advantages that：（1）By the cooperation of cylinder, the first adjusting screw rod and the second adjusting screw rod, make thousand
Jin top possesses enough lifting altitudes, eliminates and needs to use cushion block originally to meet the link of lifting altitude, using more convenient；
（2）When changing forward-tilt idler, by the way that free bearing is caught in into middle frame channel-section steel, it is ensured that 0~90 ° of scope skewed horizontal load it is steady
Property, jack is not toppled over again during forward-tilt idler is changed, substantially increase stability in use and security；
（4）Easy to carry, fault rate is low and maintenance is very convenient.
Claims (9)
- A kind of 1. screw jack, it is characterised in that：Free bearing including belt feeder middle frame channel-section steel can be caught in, and cylinder, Orthodontic internal thread and anti-tooth internal thread are respectively arranged with the both ends of cylinder, is threaded with a tune respectively at the both ends of cylinder Screw rod is saved, wherein the outer end of an adjusting screw rod is hinged with free bearing by bearing pin, is additionally provided with cylinder to rotary cylinder The boosting-rod of body, when boosting-rod rotating cylinder forward or backwards, two adjusting screw rods protruding cylinder or same simultaneously can be made When inwardly retract cylinder.
- A kind of 2. screw jack according to claim 1, it is characterised in that：It is respectively arranged with just at the both ends of cylinder Tooth nut and anti-tooth nut, cylinder are coordinated just with anti-tooth nut by orthodontic nut to be formed with two adjusting screw rod phase screw threads Tooth internal thread and anti-tooth internal thread.
- A kind of 3. screw jack according to claim 2, it is characterised in that：Orthodontic nut welds with anti-tooth nut It is fixed on cylinder.
- A kind of 4. screw jack according to Claims 2 or 3, it is characterised in that：In the inner of every adjusting screw rod It is respectively arranged with a limited block, the external diameter of the limited block on every adjusting screw rod is less than the internal diameter of cylinder and more than corresponding nut Internal diameter.
- 5. according to a kind of screw jack described in claim 1 or 2 or 3, it is characterised in that：The connection of boosting-rod and cylinder Mode is：The mounting hole for radially penetrating cylinder is provided with the centre position of cylinder, boosting-rod activity is located in mounting hole, The both ends of boosting-rod are separately installed with the block for preventing boosting-rod from skidding off mounting hole.
- A kind of 6. screw jack according to claim 4, it is characterised in that：The connected mode of boosting-rod and cylinder For：The mounting hole for radially penetrating cylinder is provided with the centre position of cylinder, boosting-rod activity is located in mounting hole, reinforced The both ends of bar are separately installed with the block for preventing boosting-rod from skidding off mounting hole.
- 7. according to a kind of screw jack described in claim 1 or 2 or 3 or 6, it is characterised in that：Do not cut with scissors mutually with free bearing The outer end of the root adjusting screw rod connect is provided with to prevent the root adjusting screw rod excessively inside positive stop of retraction cylinder.
- A kind of 8. screw jack according to claim 4, it is characterised in that：Adjusted in the root not being hinged with free bearing The outer end of section screw rod is provided with to prevent the root adjusting screw rod excessively inside positive stop of retraction cylinder.
- A kind of 9. screw jack according to claim 5, it is characterised in that：Adjusted in the root not being hinged with free bearing The outer end of section screw rod is provided with to prevent the root adjusting screw rod excessively inside positive stop of retraction cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720862432.2U CN207175326U (en) | 2017-07-17 | 2017-07-17 | A kind of screw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720862432.2U CN207175326U (en) | 2017-07-17 | 2017-07-17 | A kind of screw jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207175326U true CN207175326U (en) | 2018-04-03 |
Family
ID=61736931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720862432.2U Active CN207175326U (en) | 2017-07-17 | 2017-07-17 | A kind of screw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207175326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311066A (en) * | 2017-07-17 | 2017-11-03 | 江苏宏泰物流有限公司 | A kind of screw jack |
-
2017
- 2017-07-17 CN CN201720862432.2U patent/CN207175326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311066A (en) * | 2017-07-17 | 2017-11-03 | 江苏宏泰物流有限公司 | A kind of screw jack |
| CN107311066B (en) * | 2017-07-17 | 2023-08-11 | 江苏宏泰物流有限公司 | Screw jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215600 Yonglian Village, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Yongzhuo Logistics Technology Co.,Ltd. Address before: 215628 Jiangsu Hongtai Logistics Co., Ltd., Yonglian Village, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: JIANGSU HONGTAI LOGISTICS Co.,Ltd. |
|
| CP03 | Change of name, title or address |