CN113458760A - Spring brake energy storage spring pressure equipment frock - Google Patents
Spring brake energy storage spring pressure equipment frock Download PDFInfo
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- CN113458760A CN113458760A CN202110736154.7A CN202110736154A CN113458760A CN 113458760 A CN113458760 A CN 113458760A CN 202110736154 A CN202110736154 A CN 202110736154A CN 113458760 A CN113458760 A CN 113458760A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 35
- 230000001737 promoting effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 description 11
- 239000003550 marker Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/048—Springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
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Abstract
The invention belongs to the technical field of spring brakes, and particularly relates to a spring brake energy storage spring press-mounting tool. The technical scheme is as follows: the utility model provides a spring brake energy storage spring pressure equipment frock, includes the workstation, is provided with the travelling car that the cylinder base that is used for supporting spring brake constitutes on the workstation, still installs the portal frame on the workstation, installs the cylinder on the portal frame, installs the cylinder pressure head that the protecgulum that is used for promoting spring brake constitutes on the piston cylinder of cylinder. The invention provides a press fitting tool capable of preparing press fitting of a spring brake energy storage spring.
Description
Technical Field
The invention belongs to the technical field of spring brakes, and particularly relates to a spring brake energy storage spring press-mounting tool.
Background
As shown in fig. 2, the spring brake 8 includes a cylinder base assembly 81, a cylinder body assembly 82, a piston assembly 83, a nut 84, an energy storage spring 85, a ratchet wheel 86, a front cover assembly 87, a front flange 88 and a screw 89, wherein the nut 84 in the piston assembly 83 is connected with the ratchet wheel 86 in the front cover assembly 87 by two symmetrical key slots and keys, the nut 84 is connected with the screw 89 by a T-shaped screw of Tr30 × 28, and the front cover assembly 87 is fastened with the cylinder base assembly 81 by 6M 12 × 45 bolts.
And the cylinder body assembly 82, the cylinder seat assembly 81, the front cover assembly 87, the piston assembly 83 and other small assemblies are assembled according to the process requirements, and then the whole machine is assembled. Through process test verification, the following problems can occur during the whole machine assembly:
first, energy storage spring 85 assembly load is great, is 8130N, and free height 505mm can't realize artifical pressure equipment.
Secondly, the nut 844 and the ratchet wheel 866 rotate in the circumferential direction through bearings, the key grooves on the nut 84 and the ratchet wheel 86 need to be in a centering position during assembly, when the key groove end face of the nut 84 contacts with the key end face of the ratchet wheel 86 during assembly, the distance between the lower end face of the front cover and the upper end face of the front flange 88 is only 18mm, other positions are closed, and whether the key groove positions are centered or not can not be easily observed in the cylinder body.
Thirdly, because the spring receives certain moment of torsion can drive the protecgulum to take place anticlockwise rotation when compressing, can appear in the assembling process protecgulum excircle overlap joint before ring flange 88 terminal surface can not get into preceding ring flange 88 tang, perhaps after preceding ring flange 88 is impressed to the protecgulum, 6 mounting holes can not be totally centering.
Because the energy storage spring 85 of the spring brake 8 is difficult to assemble and the above problems can occur, a special tool needs to be designed and manufactured for press mounting of the energy storage spring 85 during assembly of the whole machine, and whether the positions of the ratchet 86 key and the key groove of the nut 84 are aligned needs to be observed during assembly.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a press fitting tool capable of preparing to press fit a spring brake energy storage spring.
The technical scheme adopted by the invention is as follows:
the utility model provides a spring brake energy storage spring pressure equipment frock, includes the workstation, is provided with the travelling car that the cylinder base that is used for supporting spring brake constitutes on the workstation, still installs the portal frame on the workstation, installs the cylinder on the portal frame, installs the cylinder pressure head that the protecgulum that is used for promoting spring brake constitutes on the piston cylinder of cylinder.
After the small groups of the spring brake are assembled, the spring brake is placed on a moving trolley of the workbench, and then the moving trolley is pushed to the position right below the energy storage spring press-mounting tool and is fixed. The cylinder is started and slowly moves downwards, so that the front cover assembly and the front flange plate can be tightly pressed by the cylinder, and the front cover assembly is conveniently and accurately connected with the front flange plate through the bolts.
As the preferred scheme of the invention, the positioning device also comprises a plurality of positioning rods, and the positioning rods penetrate through the bolt holes formed by the front cover and the bolt holes formed by the front flange plate. When the energy storage spring is pressed, the positioning rod is always arranged in the bolt hole formed by the front cover and the bolt hole of the front flange plate in a penetrating mode, the problem that the front cover is driven to rotate by torsion generated by the spring in the pressing process is solved, the bolt hole can be completely centered after assembly, and bolt fastening is facilitated.
As the preferable scheme of the invention, the number of the positioning rods is six, and the six positioning rods are uniformly arranged. All set up the locating lever in six groups of bolt holes relative with preceding ring flange are constituteed to the protecgulum, improve the accuracy of location direction.
As a preferable scheme of the invention, one end of the positioning rod is provided with a hanging table, and the hanging table is hung on one side, far away from the front flange, of the front cover assembly. The hanging table is hung on the front cover assembly, and the positioning rod is prevented from falling off when the energy storage spring is pressed and installed.
In a preferred embodiment of the present invention, the outer circle of the ratchet wheel of the spring brake is provided with a mark corresponding to the position of the ratchet wheel key, and the key groove of the nut of the spring brake is also provided with a mark. The positions of the ratchet key and the key groove are marked, so that whether the ratchet key is aligned with the key groove or not can be conveniently observed through an endoscope.
As a preferred embodiment of the present invention, the label is a red label. The inner light of the cylinder body is darker, and the positions of the ratchet wheel key and the key groove can be more obvious through the red mark.
As a preferred scheme of the invention, a three-position four-way hand-operated valve is connected between two ends of the air cylinder through an air pipe, and an exhaust throttle valve is arranged on the three-position four-way hand-operated valve. When the key groove of the nut is contacted with the ratchet wheel key, the distance between the lower end surface formed by the front cover and the upper end surface of the front flange plate is only 18mm, so that the inside of the cylinder body is not easy to observe. And when the front cover assembly moves to a certain distance, the exhaust throttle valve is arranged on the three-position four-way hand-operated valve of the cylinder, so that the cylinder can be suspended at a position convenient for observation.
As the preferable scheme of the invention, the hydraulic brake device further comprises a guide sleeve, the guide sleeve is detachably connected to one end, far away from the cylinder base, of the screw rod of the spring brake, and the other end of the guide sleeve penetrates through the front cover assembly and the cylinder pressure head. The guide sleeve is detachably connected to one end, far away from the cylinder base, of a screw rod of the spring brake, and at the initial assembling position, the guide sleeve can penetrate through a hole in the middle of the front cover assembly, so that the screw rod is guided, and the screw rod can accurately penetrate through the hole in the middle of the front cover assembly when the screw rod is pressed to a certain degree.
As a preferable scheme of the invention, one end of the cylinder pressure head, which is close to the front cover assembly, is provided with a limiting groove matched with a boss formed by the front cover. The spacing groove on the cylinder pressure head is accurately matched with the boss on the front cover assembly, so that the front cover assembly cannot be dislocated in the press mounting process.
The invention has the beneficial effects that:
1. the air cylinder can accurately press the spring brake. After the small groups of the spring brake are assembled, the spring brake is placed on a moving trolley of the workbench, and then the moving trolley is pushed to the position right below the energy storage spring press-mounting tool and is fixed. The cylinder is started and slowly moves downwards, so that the front cover assembly and the front flange plate can be tightly pressed by the cylinder, and the front cover assembly is conveniently and accurately connected with the front flange plate through the bolts.
2. When the energy storage spring is pressed, the positioning rod is always arranged in the bolt hole formed by the front cover and the bolt hole of the front flange plate in a penetrating mode, the problem that the front cover is driven to rotate by torsion generated by the spring in the pressing process is solved, the bolt hole can be completely centered after assembly, and bolt fastening is facilitated.
3. When the front cover moves to a certain distance, the exhaust throttle valve is arranged on the three-position four-way hand-operated valve of the control cylinder, so that the cylinder can be suspended at a position convenient for observation. An endoscope is inserted into the cylinder body to observe whether the key and the key groove are aligned. The relative position of the ratchet key is marked by a red marker pen at the corresponding excircle of the ratchet key, and the red marker pen is also used for coating the color on the key groove of the nut, so that the observation by an endoscope is facilitated. Therefore, in the press fitting process, the ratchet wheel can be accurately assembled with the nut.
4. The guide sleeve is detachably connected to one end, far away from the cylinder base, of a screw rod of the spring brake, and at the initial assembling position, the guide sleeve can penetrate through a hole in the middle of the front cover assembly, so that the screw rod is guided, and the screw rod can accurately penetrate through the hole in the middle of the front cover assembly when the screw rod is pressed to a certain degree.
Drawings
FIG. 1 is an assembly view of the present invention with a spring brake;
FIG. 2 is a schematic view of the spring brake;
FIG. 3 is a schematic view of the structure in an assembled initial position;
FIG. 4 is a schematic structural view of a cylinder hover position;
FIG. 5 is a schematic view of the ratchet key entering the nut keyway position.
In the figure, 1 — the table; 2-a portal frame; 3-a cylinder; 4-cylinder pressure head; 5-positioning the rod; 51-hanging table; 6-marking; 7-a guide sleeve; 8-a spring brake; 11-moving the trolley; 31-a three-position four-way hand-operated valve; 32-an exhaust throttle valve; 41-a limiting groove; 81-cylinder seat; 82-cylinder body composition; 83-piston composition; 84-a nut; 85-energy storage spring; 86-ratchet wheel; 87-front cover; 88-front flange; 89-screw rod; 871-boss.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, the spring brake energy storage spring press-fitting tool of the embodiment includes a workbench 1, a moving trolley 11 for supporting a cylinder base assembly 81 of a spring brake 8 is arranged on the workbench 1, a portal frame 2 is further installed on the workbench 1, a cylinder 3 is installed on the portal frame 2, and a cylinder 3 press head for pushing a front cover assembly 87 of the spring brake 8 is installed on a piston cylinder of the cylinder 3.
After the small groups of the spring brake 8 are assembled, the small groups are placed on a movable trolley 11 of the workbench 1, then the movable trolley 11 is pushed to the position right below the energy storage spring 85 press-fitting tool, and the movable trolley 11 is fixed. The cylinder 3 is started, the cylinder 3 slowly moves downwards, the front cover assembly 87 and the front flange 88 can be tightly pressed by the cylinder 3, and the front cover assembly 87 and the front flange 88 are conveniently and accurately connected through bolts.
In order to ensure that the bolt holes on the front cover assembly 87 are accurately aligned with the bolt holes on the front flange plate 88, the positioning device also comprises a plurality of positioning rods 5, and the positioning rods 5 penetrate through the bolt holes on the front cover assembly 87 and the bolt holes on the front flange plate 88. When the energy storage spring 85 is pressed, the positioning rod 5 is always arranged in the bolt hole of the front cover assembly 87 and the bolt hole of the front flange plate 88 in a penetrating manner, so that the problem that the front cover assembly 87 is rotated by torque force generated by the spring in the pressing process is solved, the bolt hole can be completely centered after assembly is ensured, and bolt fastening is facilitated. The number of the positioning rods 5 is six, and the six positioning rods 5 are uniformly arranged. The positioning rods 5 are arranged in six groups of bolt holes, opposite to the front flange plate 88, of the front cover assembly 87, so that the accuracy of positioning and guiding is improved. One end of the positioning rod 5 is provided with a hanging platform 51, and the hanging platform 51 is hung on one side of the front cover assembly 87 far away from the front flange plate 88. The hanging table 51 is hung on the front cover assembly 87, so that the positioning rod 5 is prevented from falling off when the energy storage spring 85 is pressed and installed.
After the endoscope extends into the cylinder body, the periphery of the endoscope is black, color contrast is avoided, and the key of the ratchet wheel 86 is positioned in the inner hole of the ratchet wheel 86 and cannot be seen, so that the relative position of the key of the ratchet wheel 86 at the corresponding excircle position is marked 6 by using a red marking pen, the key groove of the nut 84 is also coated with color by using the red marking pen, and the endoscope observation is facilitated. The position of the outer circle of the ratchet wheel 86 of the spring brake 8, which corresponds to the key of the ratchet wheel 86, is provided with a mark 6, and the key groove of the nut 84 of the spring brake 8 is also provided with the mark 6. The location of the ratchet 86 key and keyway are marked 6 to facilitate endoscopic observation of the alignment of the ratchet 86 key with the keyway. The markings 6 are red markings 6. The interior of the cylinder assembly 82 is darker and the key and keyway positions of the ratchet 86 are more visible by the red indicia 6.
Because the distance between the lower end surface of the front cover and the upper end surface of the front flange 88 is only 18mm when the key groove of the nut 84 is in key contact with the ratchet wheel 86, the inside of the cylinder body is not easy to observe. Therefore, a three-position four-way rotary valve 31 is connected between both ends of the cylinder 3 via an air duct, and an exhaust throttle valve 32 is provided in the three-position four-way rotary valve 31. Since the distance between the lower end surface of the front cover assembly 87 and the upper end surface of the front flange 88 is only 18mm when the key groove of the nut 84 is in key contact with the ratchet 86, the inside of the cylinder is not easy to observe. The three-position four-way hand-operated valve 31 is provided with an exhaust throttle valve 32, and when the front cover assembly 87 moves to a certain distance, the three-position four-way hand-operated valve 31 of the cylinder 3 is controlled to be provided with the exhaust throttle valve 32, so that the cylinder 3 can be suspended at a position convenient for observation.
Because the front cover assembly 87 is at the initial assembly position, the screw 89 does not pass through the phi 25 hole on the front cover, the guide sleeve 7 needs to be designed on the screw 89, the front cover hole can smoothly pass through the screw 89 in the press mounting process, and the front cover is prevented from being clamped at the step of the screw 89. The guide sleeve 7 is detachably connected to one end, away from the cylinder seat assembly 81, of a screw 89 of the spring brake 8, and the other end of the guide sleeve 7 penetrates through the front cover assembly 87 and the pressure head of the air cylinder 3. The guide sleeve 7 is detachably attached to the end of the screw 89 of the spring stopper 8 away from the cylinder block assembly 81, and in the initial assembly position, the guide sleeve 7 can pass through the hole in the middle of the front cover assembly 87, so that the screw 89 is guided, and the screw 89 can accurately pass through the hole in the middle of the front cover assembly 87 when press-fitted to a certain extent.
In order to ensure the accurate position of the front cover assembly 87, one end of the pressure head of the air cylinder 3, which is close to the front cover assembly 87, is provided with a limiting groove 41 matched with the boss 871 of the front cover assembly 87. The limiting groove 41 on the pressure head of the cylinder 3 is accurately matched with the boss 871 on the front cover assembly 87, so that the front cover assembly 87 cannot be dislocated in the press fitting process.
Selecting the type of the cylinder 3:
the free height of the energy storage spring 85 is 505mm, and the assembly load F is 8130N. Axial load force F of cylinder 30Greater than the assembly load of the energy storage spring 85, i.e. F0F, the theoretical thrust (N) of the common double-acting cylinder 3 is:
wherein, D-cylinder diameter (mm) and P-working pressure (MPa) of the cylinder 3.
The stroke L of the cylinder 3 is required to be 250mm, the working pressure p is 0.6MPa, the cylinder 3 is clamped by a static load, the load rate eta of the cylinder 3 is 0.8 according to the standard, and then:
theoretical output force of cylinder 3:
the theoretical cylinder diameter of a common double-acting cylinder 3 is obtained by the formula (1)
Therefore, the cylinder 3 with the cylinder diameter of the double-acting cylinder 3 of 160mm and the stroke L of 250mm is selected.
The implementation process comprises the following steps:
as shown in fig. 3 to 5, the energy storage spring 85 press-fitting tool mainly comprises a workbench 1, a moving trolley 11, a portal frame 2, a front cover assembly 87, a guide sleeve 7, a positioning rod 5, an adjustable cylinder 3, a hand-operated valve, an exhaust throttle valve 32 and the like. The specific working principle and steps are as follows:
before small assembly of each component, a red marker pen is used for painting a red observation line at the position of the outer circle corresponding to the key of the ratchet 86 and the key groove of the nut 84.
After the groups are assembled, the groups are placed on the movable trolley 11 of the workbench 1, then the movable trolley 11 is pushed to the position right below the energy storage spring 85 press-fitting tool, and the movable trolley 11 is fixed. The guide sleeve 7 penetrates through the front cover assembly 87 and is sleeved on the screw 89 for guiding, and the 6 positioning rods 5 respectively penetrate through the front cover assembly 87 and the front flange plate 88 phi 13.5 holes of the cylinder seat assembly 81 (as shown in figure 3). The exhaust throttle valve 32 is adjusted to the minimum position, the hand-operated valve is rotated, the air cylinder 3 slowly moves downwards until the distance between the lower end surface of the front cover assembly 87 and the upper end surface of the front flange 88 is about 50mm, the exhaust throttle valve 32 on the three-position four-way hand-operated valve 31 is locked, the air cylinder 3 is suspended at the current observation position, and the guide sleeve 7 is removed (as shown in fig. 4).
The endoscope is then extended into the cylinder to see if the red markings 6 on the ratchet 86 key and the nut 84 keyway are aligned, and if not, the vent throttle is slowly opened to allow the ratchet 86 key to slide slowly into the nut 84 keyway, while the front cover assembly 87 is slowly pressed into the front flange 88 notch (as shown in fig. 5) by manually rotating the screw 89 and the nut 84 to rotate so that the red markings 6 on the two pieces are aligned.
And finally, taking down 6 positioning rods 5, and sequentially assembling 6M 12 bolts and fastening. To control the speed of the exhaust throttle valve 32 throughout the operation, the screw 89 cannot be rotated after the key is aligned with the keyway position, preventing the nut 84 from being rotated to shift the keyway position as the screw 89 is rotated.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (9)
1. The utility model provides a spring brake energy storage spring pressure equipment frock, a serial communication port, including workstation (1), be provided with travelling car (11) that the cylinder base that is used for supporting spring brake (8) constitutes (81) on workstation (1), still install portal frame (2) on workstation (1), install cylinder (3) on portal frame (2), install cylinder (3) pressure head that the protecgulum that is used for promoting spring brake (8) constitutes (87) on the piston cylinder of cylinder (3).
2. The spring brake energy storage spring press-fitting tool according to claim 1, characterized by further comprising a plurality of positioning rods (5), wherein the positioning rods (5) penetrate through bolt holes of the front cover assembly (87) and bolt holes of the front flange plate (88).
3. The spring brake energy storage spring press-fitting tool according to claim 2, wherein the number of the positioning rods (5) is six, and the six positioning rods (5) are uniformly arranged.
4. The spring brake energy storage spring press-fitting tool according to claim 2, wherein a hanging table (51) is arranged at one end of the positioning rod (5), and the hanging table (51) is hung on one side, away from the front flange plate (88), of the front cover assembly (87).
5. The spring brake energy storage spring press-fitting tool according to claim 1, wherein a mark (6) is arranged on the outer circle of the ratchet wheel (86) of the spring brake (8) corresponding to the key position of the ratchet wheel (86), and the mark (6) is also arranged on the key groove of the nut (84) of the spring brake (8).
6. The spring brake energy-storage spring press-fitting tool according to claim 1, wherein the mark (6) is a red mark (6).
7. The spring brake energy storage spring press-fitting tool according to claim 1, wherein a three-position four-way hand-operated valve (31) is connected between two ends of the air cylinder (3) through an air pipe, and an exhaust throttle valve (32) is arranged on the three-position four-way hand-operated valve (31).
8. The spring brake energy storage spring press-fitting tool is characterized by further comprising a guide sleeve (7), wherein the guide sleeve (7) is detachably connected to one end, far away from the cylinder base assembly (81), of a screw rod (89) of the spring brake (8), and the other end of the guide sleeve (7) penetrates through the front cover assembly (87) and a press head of the air cylinder (3).
9. The spring brake energy storage spring press-fitting tool is characterized in that a limiting groove (41) matched with a boss (871) of a front cover assembly (87) is formed in one end, close to the front cover assembly (87), of a press head of a cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110736154.7A CN113458760A (en) | 2021-06-30 | 2021-06-30 | Spring brake energy storage spring pressure equipment frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110736154.7A CN113458760A (en) | 2021-06-30 | 2021-06-30 | Spring brake energy storage spring pressure equipment frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113458760A true CN113458760A (en) | 2021-10-01 |
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ID=77876398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110736154.7A Pending CN113458760A (en) | 2021-06-30 | 2021-06-30 | Spring brake energy storage spring pressure equipment frock |
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| Country | Link |
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| CN (1) | CN113458760A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2124664A1 (en) * | 1971-05-18 | 1972-11-30 | Knorr Bremse GmbH, 8000 München | Double brake cylinder for air brakes of vehicles |
| US4169634A (en) * | 1977-03-07 | 1979-10-02 | King William R | Brake control system and apparatus for railway cars |
| CN104440036A (en) * | 2014-11-25 | 2015-03-25 | 广州市嘉特斯机电制造有限公司 | Valve collet component assembly equipment |
| CN205968092U (en) * | 2016-07-04 | 2017-02-22 | 威特龙消防安全集团股份公司 | Pneumatic valve piston assembling frock |
| CN206373573U (en) * | 2016-12-31 | 2017-08-04 | 上海锴士自动化科技有限公司 | A kind of valve body guide sleeve and bushing press-mounting detent mechanism |
| CN109048769A (en) * | 2018-07-26 | 2018-12-21 | 河南平高电气股份有限公司 | A kind of spring loaded cylinder assembly tooling |
| CN111085844A (en) * | 2020-01-07 | 2020-05-01 | 煌太阳科技有限公司 | Device for efficiently pressing and installing C-EPS (expandable polystyrene) upper pipe column |
| CN112797095A (en) * | 2021-01-04 | 2021-05-14 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
| CN215919644U (en) * | 2021-06-30 | 2022-03-01 | 眉山中车制动科技股份有限公司 | Spring brake energy storage spring pressure equipment frock |
-
2021
- 2021-06-30 CN CN202110736154.7A patent/CN113458760A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2124664A1 (en) * | 1971-05-18 | 1972-11-30 | Knorr Bremse GmbH, 8000 München | Double brake cylinder for air brakes of vehicles |
| US4169634A (en) * | 1977-03-07 | 1979-10-02 | King William R | Brake control system and apparatus for railway cars |
| CN104440036A (en) * | 2014-11-25 | 2015-03-25 | 广州市嘉特斯机电制造有限公司 | Valve collet component assembly equipment |
| CN205968092U (en) * | 2016-07-04 | 2017-02-22 | 威特龙消防安全集团股份公司 | Pneumatic valve piston assembling frock |
| CN206373573U (en) * | 2016-12-31 | 2017-08-04 | 上海锴士自动化科技有限公司 | A kind of valve body guide sleeve and bushing press-mounting detent mechanism |
| CN109048769A (en) * | 2018-07-26 | 2018-12-21 | 河南平高电气股份有限公司 | A kind of spring loaded cylinder assembly tooling |
| CN111085844A (en) * | 2020-01-07 | 2020-05-01 | 煌太阳科技有限公司 | Device for efficiently pressing and installing C-EPS (expandable polystyrene) upper pipe column |
| CN112797095A (en) * | 2021-01-04 | 2021-05-14 | 中车青岛四方车辆研究所有限公司 | Parking brake cylinder and brake caliper unit |
| CN215919644U (en) * | 2021-06-30 | 2022-03-01 | 眉山中车制动科技股份有限公司 | Spring brake energy storage spring pressure equipment frock |
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