CN209430354U - A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface - Google Patents
A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface Download PDFInfo
- Publication number
- CN209430354U CN209430354U CN201821947964.7U CN201821947964U CN209430354U CN 209430354 U CN209430354 U CN 209430354U CN 201821947964 U CN201821947964 U CN 201821947964U CN 209430354 U CN209430354 U CN 209430354U
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- support ring
- piston
- brake cylinder
- arc surface
- hydraulic forklift
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a kind of equipped with single support ring and contacts the hydraulic forklift brake cylinder of arc surface, including pump valve body, pump valve inner is embedded with left and right symmetrical piston body, the front side of two panels piston body is provided with support ring body on the inner wall for being located at pump valve body, support ring body protrusion is simultaneously embedded into the piston body of corresponding position, is being arc surface structure with the groove bottom at hydraulic forklift brake cylinder ejector pin contact in the middle part of the front end of two panels piston body.The utility model is by increasing support ring body, in piston motion, support ring body tilting force upward or downward can be avoided piston and be difficult to metal contact-impact with pump valve body in valve body, prevent plowing from valve opening, piston is isolated with the valve opening of pump valve body by support ring body, abrasion is effectively reduced, improves service life, and the groove bottom of piston and ejector pin contact is provided with arc surface, piston, mandril are felt relieved, increases the braking effect of wheel cylinder, has a good application prospect.
Description
Technical field
The utility model relates to fork truck brake component technical fields, and in particular to one kind is equipped with single support ring and contact circular arc
The hydraulic forklift brake cylinder in face.
Background technique
Hydraulic forklift brake cylinder be fork truck braking power source, performance be directly related to hydraulic forklift braking effect
Fruit.8-10 tons of hydraulic forklift brake cylinders are relatively conventional fork truck brake components.Currently, the hydraulic fork of 8-10 ton on the market
Vehicle brake cylinder is there are no support ring knot, and specific structure is as shown in Figure 1, the strength of mandril is downward or upward in braking process
Power, lead to the metal inner surface and ejector pin contact of brake cylinder valve body, and be prone to wear, specific manifestation is as follows:
Piston and valve body hole moment of resistance generate biasing force when acting on downwards, scratch valve opening or abrasion valve opening, cause to leak, subtract
Service life is lacked.Moreover, the groove bottom of piston and ejector pin contact is plane, cause piston mandril that can not feel relieved, when braking goes out
Existing slipping phenomenon, has been further exacerbated by the degree of wear of brake cylinder valve body.
Utility model content
The purpose of this utility model is to overcome brake cylinder in the prior art, it is easy to scratch valve opening or abrasion valve opening,
The problem of reducing service life, and having skidded phenomenon.The liquid for being equipped with single support ring and contacting arc surface of the utility model
Fork truck brake cylinder is pressed, supports ring body by increasing, in piston motion, the tilting force of support ring body upward or downward can
Avoid piston from being difficult to the metal contact-impact with pump valve body in valve body, prevent plowing from valve opening, by support ring body by piston with
The valve opening of pump valve body is isolated, and is effectively reduced abrasion, is improved service life, and the groove bottom of piston and ejector pin contact is provided with circle
Cambered surface enables piston, mandril to feel relieved, and increases the braking effect of wheel cylinder, and structure is simple, easy to accomplish, convenient for producing in batches,
8-10 tons of hydraulic forklift brake cylinders are particularly suitable for, are had a good application prospect.
In order to achieve the above object, the technical scheme adopted by the utility model is
A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface, including pump valve body, the pump valve body
It is internally embedded left and right symmetrical piston body, the rear side of two panels piston body is all provided in the one end far from pump valve body center
It is equipped with support ring body, the support ring body is raised in corresponding position piston body, and is in contact with the inner wall of pump valve body,
It is being arc surface with the groove bottom at hydraulic forklift brake cylinder ejector pin contact in the middle part of the front end of two panels piston body
Structure.
A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface above-mentioned, the arc surface structure
The end cambered surface of radian and hydraulic forklift brake cylinder mandril matches.
A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface above-mentioned, the support ring body are used
It is isolated in by the valve wall of pump valve body valve opening with piston body.
A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface above-mentioned, the support ring body and work
Cock body is integrally formed.
A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface above-mentioned, the width of the support ring body
Degree is 1.5cm, highly exceeds piston body surface 0.2-0.5 cm.
The beneficial effects of the utility model are: the hydraulic forklift for being equipped with single support ring and contacting arc surface of the utility model
Brake cylinder supports ring body by increasing, and in piston motion, the tilting force of support ring body upward or downward can be avoided work
Plug is difficult to the metal contact-impact with pump valve body in valve body, prevents plowing from valve opening, by supporting ring body by piston and pump valve body
Valve opening isolation, effectively reduce abrasion, improve service life, and the groove bottom of piston and ejector pin contact is provided with arc surface,
Piston, mandril are felt relieved, the braking effect of wheel cylinder is increased, structure is simple, and it is easy to accomplish, convenient for batch production, especially
Suitable for 8-10 tons of hydraulic forklift brake cylinders, have a good application prospect.
Detailed description of the invention
Fig. 1 is the cross-sectional view of traditional hydraulic forklift brake cylinder；
Fig. 2 is the cross-sectional view for being equipped with single support ring and the hydraulic forklift brake cylinder for contacting arc surface of the utility model.
Attached meaning marked in the figure is as follows:
1: pump valve body；2: piston body；201: arc surface structure；3: support ring body；4: fork truck brake cylinder mandril.
Specific embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Fig. 2, the hydraulic forklift brake cylinder for being equipped with single support ring and contacting arc surface of the utility model, including
Pump valve body 1, the pump valve body 1 are internally embedded left and right symmetrical piston body 2, and the rear side of two panels piston body 2 is far from pump
The one end at 1 center of valve body is provided with support ring body 3, and the support ring body 3 is raised in corresponding position piston body 2, and with
The inner wall of pump valve body 1 is in contact,
It is being circular arc with the groove bottom of 4 contact position of hydraulic forklift brake cylinder mandril in the middle part of the front end of two panels piston body 2
Face structure 201.
Preferably, the end cambered surface phase of the radian of the arc surface structure 201 and hydraulic forklift brake cylinder mandril 4
Match, piston body 1, hydraulic forklift brake cylinder mandril 4 are felt relieved, increases the braking effect of the hydraulic forklift brake cylinder
Fruit.
Preferably, the support ring body 3, for the valve wall of 1 valve opening of pump valve body to be isolated with piston body 2, in piston motion
When, support ring body tilting force upward or downward can be avoided piston and be difficult to metal contact-impact with pump valve body in valve body,
Prevent plowing from valve opening (1 valve opening of pump valve body).
Preferably, the support ring body 3 is integrally formed with piston body 2, is convenient for injection molding, low manufacture cost, side
Just it produces in batches.
Preferably, the width of the support ring body 3 is 1.5cm, highly exceeds 2 surface 0.2-0.5 cm of piston body, can
The machine-shaping of ring body 3 easy to support, and play and piston is isolated with the valve opening of pump valve body, abrasion is effectively reduced, improves and uses
The purpose in service life.
In conclusion the hydraulic forklift brake cylinder for being equipped with single support ring and contacting arc surface of the utility model, passes through
Increase support ring body, in piston motion, the tilting force of support ring body upward or downward can be avoided piston and be difficult in valve body
With the metal contact-impact of pump valve body, valve opening is prevented plowing from, piston is isolated with the valve opening of pump valve body by support ring body, effectively
Abrasion is reduced, is improved service life, and the groove bottom of piston and ejector pin contact is provided with arc surface, enables piston, mandril
Enough centering, increases the braking effect of wheel cylinder, and structure is simple, easy to accomplish, and convenient for batch production, structural strength is high, especially suitable
In 8-10 tons of hydraulic forklift brake cylinders, have a good application prospect.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface, it is characterised in that: including pump valve body
(1), the pump valve body (1) is internally embedded left and right symmetrical piston body (2), and the rear side of two panels piston body (2) is separate
The one end at pump valve body (1) center is provided with support ring body (3), and the support ring body (3) is raised in corresponding position piston
Body (2), and be in contact with the inner wall of pump valve body (1),
It is being circular arc with the groove bottom of hydraulic forklift brake cylinder mandril (4) contact position in the middle part of the front end of two panels piston body (2)
Face structure (201).
2. a kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface according to claim 1, special
Sign is: the end cambered surface of the radian and hydraulic forklift brake cylinder mandril (4) of the arc surface structure (201) matches.
3. a kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface according to claim 1, special
Sign is: the support ring body (3), for the valve wall of pump valve body (1) valve opening to be isolated with piston body (2).
4. a kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface according to claim 1, special
Sign is: the support ring body (3) and piston body (2) are integrally formed.
5. a kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface according to claim 1, special
Sign is: the width of support ring body (3) is 1.5cm, highly exceeds piston body (2) surface 0.2-0.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821947964.7U CN209430354U (en) | 2018-11-26 | 2018-11-26 | A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821947964.7U CN209430354U (en) | 2018-11-26 | 2018-11-26 | A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430354U true CN209430354U (en) | 2019-09-24 |
Family
ID=67969918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821947964.7U Active CN209430354U (en) | 2018-11-26 | 2018-11-26 | A kind of hydraulic forklift brake cylinder equipped with single support ring and contact arc surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430354U (en) |
-
2018
- 2018-11-26 CN CN201821947964.7U patent/CN209430354U/en active Active
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