CN208991459U - A kind of split type pull rod shaft pressing device - Google Patents
A kind of split type pull rod shaft pressing device Download PDFInfo
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- CN208991459U CN208991459U CN201821705542.9U CN201821705542U CN208991459U CN 208991459 U CN208991459 U CN 208991459U CN 201821705542 U CN201821705542 U CN 201821705542U CN 208991459 U CN208991459 U CN 208991459U
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- pull rod
- rod shaft
- supporting block
- steel
- gland
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Abstract
The utility model discloses a kind of split type pull rod shaft pressing devices, including pull rod shaft and supporting block, boss is provided in pull rod shaft, pull rod axis hole is offered in supporting block, supporting block is set on the boss of pull rod shaft by pull rod axis hole, two steel glands are also arranged in pull rod shaft, two steel glands are located at the both ends of supporting block, and steel gland passes through bolt presses in the end face of supporting block；Copper sheathing is crimped between steel gland and the boss of pull rod shaft.A kind of split type pull rod shaft pressing device provided by the utility model, steel gland is the two parts separated with copper sheathing, because the hardness of steel material is more much bigger than the hardness of copper material, therefore the problem of steel gland rupture would not occurs；Steel gland is the two parts separated with copper sheathing, if the copper sheathing in pull rod axis hole gets rusty when can not take down, does not influence the dismounting of steel gland；Gland part is manufactured using steel material, is equivalent to the copper material more than half being changed to steel material, the cost of steel material is lower than copper material, therefore reduces its manufacturing cost.
Description
Technical field
The utility model belongs to milling equipment field, and in particular to a kind of split type pull rod shaft pressing device.
Background technique
The most commonly used bar wire rod rolling mill of domestic and international application and light-section mill are short stress path rolling mill, type tool at present
Have the advantages that small in size, light weight, mill stiffness be big, bearing long service life.Pull rod shaft is assembled as in short stress path rolling mill
One of core component, have both the double action for bearing roll-force and transmitting adjustment opening degree.In order to guarantee pull rod shaft just
Often work, pull rod shaft need to guarantee that pull rod shaft has certain shifting amount in the pull rod axis hole of supporting block in assembly.But due to altering
The presence of momentum, the shock loading generated when crossing steel will form biggish momentum, connect bolt so as to cause gland and gland
Damage.It is at present on the market commonly monoblock type copper gland, since the locating production environment of monoblock type copper gland assembly compares
Badly, water, iron rust, dust etc. are more, and monoblock type copper gland must use copper material.It is initially whole in actual production application
The specification of the gland bolt of formula copper gland is M10 × 25, and in actual production since rolling shock loading is excessive, occur
The phenomenon that gland bolt is broken.For this purpose, bolt M10 × 25 are changed to M16 × 35 in subsequent production, this addresses the problem disconnected
The problem of splitting.But solve the problems, such as it is old after again there is new problem, due to the limitation of milling train opening degree, monoblock type
The thickness of the upper overturning of copper gland is restricted, and after gland bolt increases, installation pore size is increased accordingly, gland bolt lower stage
Rank thickness reduces, and the remitted its fury of monoblock type copper gland, there have been gland bolts not to be broken in practical applications, but
Monoblock type copper gland flange cracking, still causes the generation of quality accident.
Utility model content
For above-mentioned problems of the prior art, the purpose of the utility model is to provide a kind of split type pull rod shaft pressures
Lid arrangement has the characteristics that intensity high-mechanical property is stable, and can effectively avoid that gland can not be dismantled because getting rusty
It happens.
In order to solve the above technical problems, the utility model is achieved by the following technical programs:
A kind of split type pull rod shaft pressing device, including pull rod shaft and supporting block are provided with boss in the pull rod shaft, institute
It states and offers pull rod axis hole in supporting block, supporting block is set on the boss of pull rod shaft by pull rod axis hole, is also covered in pull rod shaft
Equipped with two steel glands, two steel glands are located at the both ends of supporting block, and steel gland passes through bolt presses in the end face of supporting block；It is described
Copper sheathing is crimped between steel gland and the boss of pull rod shaft.
Further, the length of the supporting block is greater than the length of boss, and is set on boss in the middle part of supporting block, props up
It is gap between the both ends and pull rod shaft of bracer, the one end contacted on the steel gland with supporting block is provided with cricoid seam allowance
Portion, the seam allowance portion protrudes into the gap between supporting block and pull rod shaft, and seam allowance portion and copper sheathing end thereof contacts, the copper sheathing other end
It is contacted with boss.
Further, sealing ring is provided between the steel gland and pull rod shaft, the lateral surface in seam allowance portion is pressed on support
On block.
Further, the height that the seam allowance portion is stretched out is 3~10mm.
Further, the contact surface of the steel gland and the pull rod shaft is provided with chrome layer, the steel gland with it is described
Waterproof gasket cement is provided between the contact surface of supporting block.
Further, spring washer is provided between the bolt and the steel gland.
Further, clearance fit between the copper sheathing and the pull rod shaft.
Further, the bolt selects the bolt of M16 × 35mm.
Further, if the inner ring of the copper sheathing is provided with dry sump.
Compared with prior art, the utility model at least has the advantages that
A kind of split type pull rod shaft pressing device provided by the utility model, steel gland are two separated with copper sheathing
Point, because the hardness of steel material is more much bigger than the hardness of copper material, therefore with M16 × 35mm or bigger bolt by steel gland
Connected with supporting block, the problem of steel gland rupture would not occur, and the bolt of M16 × 35mm be capable of providing it is enough strong
Degree；Steel gland is the two parts separated with copper sheathing, if the copper sheathing in pull rod axis hole gets rusty when can not take down, does not influence steel gland
Dismounting；The copper gland of the prior art is all made of the manufacture of full copper material, and the split type pull rod shaft pressing device of the utility model its
Gland part is manufactured using steel material, is equivalent to the copper material more than half being changed to steel material, and the cost of steel material is far below copper
Material, therefore greatly reduce its manufacturing cost；
Further, it is additionally provided with seam allowance portion on steel gland, seam allowance portion is sticked into pull rod axis hole during installation, is facilitated
The radial positioning of bolt, and the protrusion height in seam allowance portion is smaller, the problem of can not being dismounted after can avoid steel gland just in case getting rusty；
Further, it is provided with sealing ring between steel gland and pull rod shaft, in the contact site of steel gland and pull rod shaft
Steel gland surfaces chromium plating is given, waterproof gasket cement is smeared between steel gland and the contact surface of supporting block, can all substantially reduce pull rod
The problem of axis pressing device gets rusty；
It further, is clearance fit, the shock loading generated when both can eliminate steel in this way between copper sheathing and pull rod shaft
Bar body bring is damaged, prevented also from once enter steam and the problem of get rusty；
Further, the inner ring of copper sheathing is provided with oil groove, can be used to store grease in this way, and then carry out oil to pull rod shaft
Lubrication.
Detailed description of the invention
Fig. 1 is the split type pull rod shaft gland installation diagram of the utility model；
Fig. 2 is the structural schematic diagram of the supporting block in Fig. 1；
Fig. 3 is the positive structure diagram of steel gland in Fig. 1；
Fig. 4 is the overlooking structure diagram of steel gland in Fig. 3；
Fig. 5 is the positive structure diagram of copper sheathing in Fig. 1；
Fig. 6 is the overlooking structure diagram of copper sheathing in Fig. 5.
In figure: 1- supporting block；2- pull rod shaft；3- top chock；4- step；5- bolt；6- spring washer；7- sealing
Circle；8- steel gland；9- copper sheathing；10- pull rod axis hole；11- seam allowance portion.
Specific embodiment
With reference to the accompanying drawing and specific embodiment, the utility model is further described:
As depicted in figs. 1 and 2, the utility model includes supporting block 1, pull rod shaft 2, steel gland 8 and copper sheathing 9, and pull rod shaft 2
It holds between top chock 3 and step 4, pull rod axis hole 10 is offered in supporting block 1, is provided with boss in pull rod shaft 2,
Supporting block 1 is set on the boss of pull rod shaft 2 by pull rod axis hole 10, and two steel glands 8, two steel pressures are also arranged in pull rod shaft 2
Lid 8 is located at the both ends of supporting block 1, and steel gland 8 is pressed on the end face of supporting block 1, bolt 5 and steel gland 8 by bolt 5
Between be provided with spring washer 6；Copper sheathing 9 is crimped between steel gland 8 and the boss of pull rod shaft 2, i.e. pull rod shaft 2 passes through pull rod shaft
Copper sheathing 9 is inserted in from the both ends of pull rod shaft 2 by hole 10 respectively, and copper sheathing 9 is put into the upper and lower part of pull rod axis hole 10, copper sheathing 9
The clearance fit between pull rod shaft 2, total clearance fit is having a size of 0.05~0.15mm between copper sheathing 9 and pull rod shaft 2.
As shown in Figure 1, the length of supporting block 1 is greater than the length of boss, and the middle part of supporting block 1 is set on boss, branch
It is gap between the both ends and pull rod shaft 2 of bracer 1, as shown in figure 3, the one end contacted on steel gland 8 with supporting block 1 is provided with
Cricoid seam allowance portion 11, seam allowance portion 11 protrude into the gap between supporting block 1 and pull rod shaft 2, and seam allowance portion 11 and 9 one end of copper sheathing
Contact, 9 other end of copper sheathing is contacted with boss, in order to will quickly be connected with bolt 5 between steel gland 8 and supporting block 1,
Seam allowance portion 11 is set on steel gland 8, and seam allowance portion 11 is matched with pull rod axis hole 10, and the height in seam allowance portion 11 is in 3~6mm, in this way
Seam allowance portion 11 can be sticked into pull rod axis hole 10, the installation not only contributed between steel gland 8 and supporting block 1 positions, and because
The problem of height in seam allowance portion 11 is smaller, can not dismount after can avoid steel gland 8 just in case getting rusty.
As shown in Figure 5 and Figure 6, the inner ring of the copper sheathing 9 of the utility model is additionally provided with oil groove, can be used to store grease,
It is convenient that oil lubrication is carried out to pull rod shaft；Steel gland 8 is inserted in from the both ends of pull rod shaft 2 and is set in pull rod shaft 2, and by steel gland
It is connected between 8 and the both ends of the surface of supporting block 1 by the bolt 5 of M16 × 35mm, is also lined with spring between bolt 5 and steel gland 8
Washer 6.
In addition, as shown in Figure 1, because pull rod shaft pressing device working environment it is extremely severe, water, iron rust, dust etc. compared with
It is more, cisco unity malfunction can not be dismounted or corrode in order to avoid split type pull rod shaft pressing device in the presence of a harsh environment gets rusty,
Sealing ring 7 is provided between steel gland 8 and pull rod shaft 2, steel gland 8 and the contact site of pull rod shaft 2 give 8 surface of steel gland to plate
Chromium smears waterproof gasket cement between steel gland 8 and the contact surface of supporting block 1.
As shown in figure 4, circular array shows several bolts hole on the steel gland of the utility model, bolt 5 will across bolt hole
Steel gland 8 is fixed in supporting block 1, is uniformly arranged bolt 5 and can effectively be promoted and compresses between steel gland 8 and supporting block 1
Reliability further improves sealing performance.
The working principle of the utility model are as follows: split type pull rod shaft pressing device is guaranteeing 2 axial movement space of pull rod shaft
While, also to guarantee on impact loading to copper sheathing 9 that pull rod shaft 2 is generated by axial float, to pass to steel pressure
When lid 8 and screw 5, steel gland 8 and screw 5 can be worked normally.The higher steel part of intensity is used in steel gland 8, screw 5 increases
Diameter improves intensity, to guarantee that split type pull rod shaft pressing device can work normally.In addition, being rolled in steel rolling production-line
Environment locating for machine is more severe, although sealing ring 7 can play the entrance for preventing the magazines such as steam, it is easily damaged, meeting
Cause the impurity such as steam to enter the pull rod axis hole 10 of supporting block 1, and the copper material that copper sheathing 9 uses, it is ensured that its non-corrosive and
The normal work of pull rod shaft pressing device is not influenced.
Claims (9)
1. a kind of split type pull rod shaft pressing device, it is characterised in that: including pull rod shaft (2) and supporting block (1), the pull rod shaft
(2) it is provided with boss on, is offered pull rod axis hole (10) on the supporting block (1), supporting block (1) is set in by pull rod axis hole
On the boss of pull rod shaft (2), two steel glands (8) are also arranged in pull rod shaft (2), two steel glands (8) are located at the two of supporting block (1)
End, and steel gland (8) is pressed on the end face of supporting block (1) by bolt (5)；The boss of the steel gland (8) and pull rod shaft (2)
Between be crimped with copper sheathing (9).
2. a kind of split type pull rod shaft pressing device according to claim 1, it is characterised in that: the supporting block (1)
Length is greater than the length of boss, and is set on boss in the middle part of supporting block (1), the both ends and pull rod shaft (2) of supporting block (1)
Between be gap, one end contact on the steel gland (8) with supporting block (1) is provided with cricoid seam allowance portion (11), described to stop
Oral area (11) protrudes into the gap between supporting block (1) and pull rod shaft (2), and seam allowance portion (11) and copper sheathing (9) end thereof contacts, copper
Set (9) other end is contacted with boss.
3. a kind of split type pull rod shaft pressing device according to claim 2, it is characterised in that: the steel gland (8) with
It is provided between pull rod shaft (2) sealing ring (7), the lateral surface of seam allowance portion (11) is pressed on supporting block (1).
4. a kind of split type pull rod shaft pressing device according to claim 2, it is characterised in that: the seam allowance portion (11) is stretched
Height out is 3~10mm.
5. a kind of split type pull rod shaft pressing device according to claim 1, it is characterised in that: the steel gland (8) with
The contact surface of the pull rod shaft (2) is provided with chrome layer, sets between the steel gland (8) and the contact surface of the supporting block (1)
It is equipped with waterproof gasket cement.
6. a kind of split type pull rod shaft pressing device according to claim 1, it is characterised in that: the bolt (5) and institute
It states and is provided with spring washer (6) between steel gland (8).
7. a kind of split type pull rod shaft pressing device according to claim 1, it is characterised in that: the copper sheathing (9) and institute
State clearance fit between pull rod shaft (2).
8. a kind of split type pull rod shaft pressing device according to claim 1, it is characterised in that: the bolt (5) is selected
The bolt of M16 × 35mm.
9. a kind of split type pull rod shaft pressing device according to claim 1, it is characterised in that: the copper sheathing (9) it is interior
If circle is provided with dry sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705542.9U CN208991459U (en) | 2018-10-19 | 2018-10-19 | A kind of split type pull rod shaft pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705542.9U CN208991459U (en) | 2018-10-19 | 2018-10-19 | A kind of split type pull rod shaft pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208991459U true CN208991459U (en) | 2019-06-18 |
Family
ID=66804304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821705542.9U Active CN208991459U (en) | 2018-10-19 | 2018-10-19 | A kind of split type pull rod shaft pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208991459U (en) |
-
2018
- 2018-10-19 CN CN201821705542.9U patent/CN208991459U/en active Active
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